diff options
1024 files changed, 25036 insertions, 12462 deletions
diff --git a/Documentation/00-INDEX b/Documentation/00-INDEX index c17cd4bb229..1b777b96049 100644 --- a/Documentation/00-INDEX +++ b/Documentation/00-INDEX @@ -328,8 +328,6 @@ sysrq.txt - info on the magic SysRq key. telephony/ - directory with info on telephony (e.g. voice over IP) support. -uml/ - - directory with information about User Mode Linux. unicode.txt - info on the Unicode character/font mapping used in Linux. unshare.txt diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu index 7564e88bfa4..e7be75b96e4 100644 --- a/Documentation/ABI/testing/sysfs-devices-system-cpu +++ b/Documentation/ABI/testing/sysfs-devices-system-cpu @@ -183,21 +183,21 @@ Description: Discover and change clock speed of CPUs to learn how to control the knobs. -What: /sys/devices/system/cpu/cpu*/cache/index*/cache_disable_X -Date: August 2008 +What: /sys/devices/system/cpu/cpu*/cache/index3/cache_disable_{0,1} +Date: August 2008 KernelVersion: 2.6.27 -Contact: mark.langsdorf@amd.com -Description: These files exist in every cpu's cache index directories. - There are currently 2 cache_disable_# files in each - directory. Reading from these files on a supported - processor will return that cache disable index value - for that processor and node. Writing to one of these - files will cause the specificed cache index to be disabled. - - Currently, only AMD Family 10h Processors support cache index - disable, and only for their L3 caches. See the BIOS and - Kernel Developer's Guide at - http://support.amd.com/us/Embedded_TechDocs/31116-Public-GH-BKDG_3-28_5-28-09.pdf - for formatting information and other details on the - cache index disable. -Users: joachim.deguara@amd.com +Contact: discuss@x86-64.org +Description: Disable L3 cache indices + + These files exist in every CPU's cache/index3 directory. Each + cache_disable_{0,1} file corresponds to one disable slot which + can be used to disable a cache index. Reading from these files + on a processor with this functionality will return the currently + disabled index for that node. There is one L3 structure per + node, or per internal node on MCM machines. Writing a valid + index to one of these files will cause the specificed cache + index to be disabled. + + All AMD processors with L3 caches provide this functionality. + For details, see BKDGs at + http://developer.amd.com/documentation/guides/Pages/default.aspx diff --git a/Documentation/ABI/testing/sysfs-power b/Documentation/ABI/testing/sysfs-power index 194ca446ac2..b464d12761b 100644 --- a/Documentation/ABI/testing/sysfs-power +++ b/Documentation/ABI/testing/sysfs-power @@ -158,3 +158,17 @@ Description: successful, will make the kernel abort a subsequent transition to a sleep state if any wakeup events are reported after the write has returned. + +What: /sys/power/reserved_size +Date: May 2011 +Contact: Rafael J. Wysocki <rjw@sisk.pl> +Description: + The /sys/power/reserved_size file allows user space to control + the amount of memory reserved for allocations made by device + drivers during the "device freeze" stage of hibernation. It can + be written a string representing a non-negative integer that + will be used as the amount of memory to reserve for allocations + made by device drivers' "freeze" callbacks, in bytes. + + Reading from this file will display the current value, which is + set to 1 MB by default. diff --git a/Documentation/DocBook/genericirq.tmpl b/Documentation/DocBook/genericirq.tmpl index fb10fd08c05..b3422341d65 100644 --- a/Documentation/DocBook/genericirq.tmpl +++ b/Documentation/DocBook/genericirq.tmpl @@ -191,8 +191,8 @@ <para> Whenever an interrupt triggers, the lowlevel arch code calls into the generic interrupt code by calling desc->handle_irq(). - This highlevel IRQ handling function only uses desc->chip primitives - referenced by the assigned chip descriptor structure. + This highlevel IRQ handling function only uses desc->irq_data.chip + primitives referenced by the assigned chip descriptor structure. </para> </sect1> <sect1 id="Highlevel_Driver_API"> @@ -206,11 +206,11 @@ <listitem><para>enable_irq()</para></listitem> <listitem><para>disable_irq_nosync() (SMP only)</para></listitem> <listitem><para>synchronize_irq() (SMP only)</para></listitem> - <listitem><para>set_irq_type()</para></listitem> - <listitem><para>set_irq_wake()</para></listitem> - <listitem><para>set_irq_data()</para></listitem> - <listitem><para>set_irq_chip()</para></listitem> - <listitem><para>set_irq_chip_data()</para></listitem> + <listitem><para>irq_set_irq_type()</para></listitem> + <listitem><para>irq_set_irq_wake()</para></listitem> + <listitem><para>irq_set_handler_data()</para></listitem> + <listitem><para>irq_set_chip()</para></listitem> + <listitem><para>irq_set_chip_data()</para></listitem> </itemizedlist> See the autogenerated function documentation for details. </para> @@ -225,6 +225,8 @@ <listitem><para>handle_fasteoi_irq</para></listitem> <listitem><para>handle_simple_irq</para></listitem> <listitem><para>handle_percpu_irq</para></listitem> + <listitem><para>handle_edge_eoi_irq</para></listitem> + <listitem><para>handle_bad_irq</para></listitem> </itemizedlist> The interrupt flow handlers (either predefined or architecture specific) are assigned to specific interrupts by the architecture @@ -241,13 +243,13 @@ <programlisting> default_enable(struct irq_data *data) { - desc->chip->irq_unmask(data); + desc->irq_data.chip->irq_unmask(data); } default_disable(struct irq_data *data) { if (!delay_disable(data)) - desc->chip->irq_mask(data); + desc->irq_data.chip->irq_mask(data); } default_ack(struct irq_data *data) @@ -284,9 +286,9 @@ noop(struct irq_data *data)) <para> The following control flow is implemented (simplified excerpt): <programlisting> -desc->chip->irq_mask(); -handle_IRQ_event(desc->action); -desc->chip->irq_unmask(); +desc->irq_data.chip->irq_mask_ack(); +handle_irq_event(desc->action); +desc->irq_data.chip->irq_unmask(); </programlisting> </para> </sect3> @@ -300,8 +302,8 @@ desc->chip->irq_unmask(); <para> The following control flow is implemented (simplified excerpt): <programlisting> -handle_IRQ_event(desc->action); -desc->chip->irq_eoi(); +handle_irq_event(desc->action); +desc->irq_data.chip->irq_eoi(); </programlisting> </para> </sect3> @@ -315,17 +317,17 @@ desc->chip->irq_eoi(); The following control flow is implemented (simplified excerpt): <programlisting> if (desc->status & running) { - desc->chip->irq_mask(); + desc->irq_data.chip->irq_mask_ack(); desc->status |= pending | masked; return; } -desc->chip->irq_ack(); +desc->irq_data.chip->irq_ack(); desc->status |= running; do { if (desc->status & masked) - desc->chip->irq_unmask(); + desc->irq_data.chip->irq_unmask(); desc->status &= ~pending; - handle_IRQ_event(desc->action); + handle_irq_event(desc->action); } while (status & pending); desc->status &= ~running; </programlisting> @@ -344,7 +346,7 @@ desc->status &= ~running; <para> The following control flow is implemented (simplified excerpt): <programlisting> -handle_IRQ_event(desc->action); +handle_irq_event(desc->action); </programlisting> </para> </sect3> @@ -362,12 +364,29 @@ handle_IRQ_event(desc->action); <para> The following control flow is implemented (simplified excerpt): <programlisting> -handle_IRQ_event(desc->action); -if (desc->chip->irq_eoi) - desc->chip->irq_eoi(); +if (desc->irq_data.chip->irq_ack) + desc->irq_data.chip->irq_ack(); +handle_irq_event(desc->action); +if (desc->irq_data.chip->irq_eoi) + desc->irq_data.chip->irq_eoi(); </programlisting> </para> </sect3> + <sect3 id="EOI_Edge_IRQ_flow_handler"> + <title>EOI Edge IRQ flow handler</title> + <para> + handle_edge_eoi_irq provides an abnomination of the edge + handler which is solely used to tame a badly wreckaged + irq controller on powerpc/cell. + </para> + </sect3> + <sect3 id="BAD_IRQ_flow_handler"> + <title>Bad IRQ flow handler</title> + <para> + handle_bad_irq is used for spurious interrupts which + have no real handler assigned.. + </para> + </sect3> </sect2> <sect2 id="Quirks_and_optimizations"> <title>Quirks and optimizations</title> @@ -410,6 +429,7 @@ if (desc->chip->irq_eoi) <listitem><para>irq_mask_ack() - Optional, recommended for performance</para></listitem> <listitem><para>irq_mask()</para></listitem> <listitem><para>irq_unmask()</para></listitem> + <listitem><para>irq_eoi() - Optional, required for eoi flow handlers</para></listitem> <listitem><para>irq_retrigger() - Optional</para></listitem> <listitem><para>irq_set_type() - Optional</para></listitem> <listitem><para>irq_set_wake() - Optional</para></listitem> @@ -424,32 +444,24 @@ if (desc->chip->irq_eoi) <chapter id="doirq"> <title>__do_IRQ entry point</title> <para> - The original implementation __do_IRQ() is an alternative entry - point for all types of interrupts. + The original implementation __do_IRQ() was an alternative entry + point for all types of interrupts. It not longer exists. </para> <para> This handler turned out to be not suitable for all interrupt hardware and was therefore reimplemented with split - functionality for egde/level/simple/percpu interrupts. This is not + functionality for edge/level/simple/percpu interrupts. This is not only a functional optimization. It also shortens code paths for interrupts. </para> - <para> - To make use of the split implementation, replace the call to - __do_IRQ by a call to desc->handle_irq() and associate - the appropriate handler function to desc->handle_irq(). - In most cases the generic handler implementations should - be sufficient. - </para> </chapter> <chapter id="locking"> <title>Locking on SMP</title> <para> The locking of chip registers is up to the architecture that - defines the chip primitives. There is a chip->lock field that can be used - for serialization, but the generic layer does not touch it. The per-irq - structure is protected via desc->lock, by the generic layer. + defines the chip primitives. The per-irq structure is + protected via desc->lock, by the generic layer. </para> </chapter> <chapter id="structs"> diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index 492e81df296..f6a24e8aa11 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -460,14 +460,6 @@ Who: Thomas Gleixner <tglx@linutronix.de> ---------------------------- -What: The acpi_sleep=s4_nonvs command line option -When: 2.6.37 -Files: arch/x86/kernel/acpi/sleep.c -Why: superseded by acpi_sleep=nonvs -Who: Rafael J. Wysocki <rjw@sisk.pl> - ----------------------------- - What: PCI DMA unmap state API When: August 2012 Why: PCI DMA unmap state API (include/linux/pci-dma.h) was replaced diff --git a/Documentation/flexible-arrays.txt b/Documentation/flexible-arrays.txt index cb8a3a00cc9..df904aec990 100644 --- a/Documentation/flexible-arrays.txt +++ b/Documentation/flexible-arrays.txt @@ -66,10 +66,10 @@ trick is to ensure that any needed memory allocations are done before entering atomic context, using: int flex_array_prealloc(struct flex_array *array, unsigned int start, - unsigned int end, gfp_t flags); + unsigned int nr_elements, gfp_t flags); This function will ensure that memory for the elements indexed in the range -defined by start and end has been allocated. Thereafter, a +defined by start and nr_elements has been allocated. Thereafter, a flex_array_put() call on an element in that range is guaranteed not to block. diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index cc85a927819..c603ef7b056 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -245,7 +245,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted. acpi_sleep= [HW,ACPI] Sleep options Format: { s3_bios, s3_mode, s3_beep, s4_nohwsig, - old_ordering, s4_nonvs, sci_force_enable } + old_ordering, nonvs, sci_force_enable } See Documentation/power/video.txt for information on s3_bios and s3_mode. s3_beep is for debugging; it makes the PC's speaker beep @@ -1664,6 +1664,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted. noexec=on: enable non-executable mappings (default) noexec=off: disable non-executable mappings + nosmep [X86] + Disable SMEP (Supervisor Mode Execution Protection) + even if it is supported by processor. + noexec32 [X86-64] This affects only 32-bit executables. noexec32=on: enable non-executable mappings (default) diff --git a/Documentation/power/devices.txt b/Documentation/power/devices.txt index 1971bcf48a6..88880839ece 100644 --- a/Documentation/power/devices.txt +++ b/Documentation/power/devices.txt @@ -279,11 +279,15 @@ When the system goes into the standby or memory sleep state, the phases are: time.) Unlike the other suspend-related phases, during the prepare phase the device tree is traversed top-down. - The prepare phase uses only a bus callback. After the callback method - returns, no new children may be registered below the device. The method - may also prepare the device or driver in some way for the upcoming - system power transition, but it should not put the device into a - low-power state. + In addition to that, if device drivers need to allocate additional + memory to be able to hadle device suspend correctly, that should be + done in the prepare phase. + + After the prepare callback method returns, no new children may be + registered below the device. The method may also prepare the device or + driver in some way for the upcoming system power transition (for + example, by allocating additional memory required for this purpose), but + it should not put the device into a low-power state. 2. The suspend methods should quiesce the device to stop it from performing I/O. They also may save the device registers and put it into the diff --git a/Documentation/power/notifiers.txt b/Documentation/power/notifiers.txt index cf980709122..c2a4a346c0d 100644 --- a/Documentation/power/notifiers.txt +++ b/Documentation/power/notifiers.txt @@ -1,46 +1,41 @@ Suspend notifiers - (C) 2007 Rafael J. Wysocki <rjw@sisk.pl>, GPL - -There are some operations that device drivers may want to carry out in their -.suspend() routines, but shouldn't, because they can cause the hibernation or -suspend to fail. For example, a driver may want to allocate a substantial amount -of memory (like 50 MB) in .suspend(), but that shouldn't be done after the -swsusp's memory shrinker has run. - -Also, there may be some operations, that subsystems want to carry out before a -hibernation/suspend or after a restore/resume, requiring the system to be fully -functional, so the drivers' .suspend() and .resume() routines are not suitable -for this purpose. For example, device drivers may want to upload firmware to -their devices after a restore from a hibernation image, but they cannot do it by -calling request_firmware() from their .resume() routines (user land processes -are frozen at this point). The solution may be to load the firmware into -memory before processes are frozen and upload it from there in the .resume() -routine. Of course, a hibernation notifier may be used for this purpose. - -The subsystems that have such needs can register suspend notifiers that will be -called upon the following events by the suspend core: + (C) 2007-2011 Rafael J. Wysocki <rjw@sisk.pl>, GPL + +There are some operations that subsystems or drivers may want to carry out +before hibernation/suspend or after restore/resume, but they require the system +to be fully functional, so the drivers' and subsystems' .suspend() and .resume() +or even .prepare() and .complete() callbacks are not suitable for this purpose. +For example, device drivers may want to upload firmware to their devices after +resume/restore, but they cannot do it by calling request_firmware() from their +.resume() or .complete() routines (user land processes are frozen at these +points). The solution may be to load the firmware into memory before processes +are frozen and upload it from there in the .resume() routine. +A suspend/hibernation notifier may be used for this purpose. + +The subsystems or drivers having such needs can register suspend notifiers that +will be called upon the following events by the PM core: PM_HIBERNATION_PREPARE The system is going to hibernate or suspend, tasks will be frozen immediately. PM_POST_HIBERNATION The system memory state has been restored from a - hibernation image or an error occurred during the - hibernation. Device drivers' .resume() callbacks have + hibernation image or an error occurred during + hibernation. Device drivers' restore callbacks have been executed and tasks have been thawed. PM_RESTORE_PREPARE The system is going to restore a hibernation image. - If all goes well the restored kernel will issue a + If all goes well, the restored kernel will issue a PM_POST_HIBERNATION notification. -PM_POST_RESTORE An error occurred during the hibernation restore. - Device drivers' .resume() callbacks have been executed +PM_POST_RESTORE An error occurred during restore from hibernation. + Device drivers' restore callbacks have been executed and tasks have been thawed. -PM_SUSPEND_PREPARE The system is preparing for a suspend. +PM_SUSPEND_PREPARE The system is preparing for suspend. PM_POST_SUSPEND The system has just resumed or an error occurred during - the suspend. Device drivers' .resume() callbacks have - been executed and tasks have been thawed. + suspend. Device drivers' resume callbacks have been + executed and tasks have been thawed. It is generally assumed that whatever the notifiers do for PM_HIBERNATION_PREPARE, should be undone for PM_POST_HIBERNATION. Analogously, diff --git a/Documentation/trace/kprobetrace.txt b/Documentation/trace/kprobetrace.txt index 6d27ab8d6e9..c83bd6b4e6e 100644 --- a/Documentation/trace/kprobetrace.txt +++ b/Documentation/trace/kprobetrace.txt @@ -120,7 +120,6 @@ format: field:unsigned char common_flags; offset:2; size:1; signed:0; field:unsigned char common_preempt_count; offset:3; size:1;signed:0; field:int common_pid; offset:4; size:4; signed:1; - field:int common_lock_depth; offset:8; size:4; signed:1; field:unsigned long __probe_ip; offset:12; size:4; signed:0; field:int __probe_nargs; offset:16; size:4; signed:1; diff --git a/Documentation/virtual/00-INDEX b/Documentation/virtual/00-INDEX new file mode 100644 index 00000000000..fe0251c4cfb --- /dev/null +++ b/Documentation/virtual/00-INDEX @@ -0,0 +1,10 @@ +Virtualization support in the Linux kernel. + +00-INDEX + - this file. +kvm/ + - Kernel Virtual Machine. See also http://linux-kvm.org +lguest/ + - Extremely simple hypervisor for experimental/educational use. +uml/ + - User Mode Linux, builds/runs Linux kernel as a userspace program. diff --git a/Documentation/kvm/api.txt b/Documentation/virtual/kvm/api.txt index 9bef4e4cec5..9bef4e4cec5 100644 --- a/Documentation/kvm/api.txt +++ b/Documentation/virtual/kvm/api.txt diff --git a/Documentation/kvm/cpuid.txt b/Documentation/virtual/kvm/cpuid.txt index 882068538c9..882068538c9 100644 --- a/Documentation/kvm/cpuid.txt +++ b/Documentation/virtual/kvm/cpuid.txt diff --git a/Documentation/kvm/locking.txt b/Documentation/virtual/kvm/locking.txt index 3b4cd3bf563..3b4cd3bf563 100644 --- a/Documentation/kvm/locking.txt +++ b/Documentation/virtual/kvm/locking.txt diff --git a/Documentation/kvm/mmu.txt b/Documentation/virtual/kvm/mmu.txt index f46aa58389c..f46aa58389c 100644 --- a/Documentation/kvm/mmu.txt +++ b/Documentation/virtual/kvm/mmu.txt diff --git a/Documentation/kvm/msr.txt b/Documentation/virtual/kvm/msr.txt index d079aed27e0..d079aed27e0 100644 --- a/Documentation/kvm/msr.txt +++ b/Documentation/virtual/kvm/msr.txt diff --git a/Documentation/kvm/ppc-pv.txt b/Documentation/virtual/kvm/ppc-pv.txt index 3ab969c5904..3ab969c5904 100644 --- a/Documentation/kvm/ppc-pv.txt +++ b/Documentation/virtual/kvm/ppc-pv.txt diff --git a/Documentation/kvm/review-checklist.txt b/Documentation/virtual/kvm/review-checklist.txt index 730475ae1b8..a850986ed68 100644 --- a/Documentation/kvm/review-checklist.txt +++ b/Documentation/virtual/kvm/review-checklist.txt @@ -7,7 +7,7 @@ Review checklist for kvm patches 2. Patches should be against kvm.git master branch. 3. If the patch introduces or modifies a new userspace API: - - the API must be documented in Documentation/kvm/api.txt + - the API must be documented in Documentation/virtual/kvm/api.txt - the API must be discoverable using KVM_CHECK_EXTENSION 4. New state must include support for save/restore. diff --git a/Documentation/kvm/timekeeping.txt b/Documentation/virtual/kvm/timekeeping.txt index df8946377cb..df8946377cb 100644 --- a/Documentation/kvm/timekeeping.txt +++ b/Documentation/virtual/kvm/timekeeping.txt diff --git a/Documentation/lguest/.gitignore b/Documentation/virtual/lguest/.gitignore index 115587fd5f6..115587fd5f6 100644 --- a/Documentation/lguest/.gitignore +++ b/Documentation/virtual/lguest/.gitignore diff --git a/Documentation/lguest/Makefile b/Documentation/virtual/lguest/Makefile index bebac6b4f33..bebac6b4f33 100644 --- a/Documentation/lguest/Makefile +++ b/Documentation/virtual/lguest/Makefile diff --git a/Documentation/lguest/extract b/Documentation/virtual/lguest/extract index 7730bb6e4b9..7730bb6e4b9 100644 --- a/Documentation/lguest/extract +++ b/Documentation/virtual/lguest/extract diff --git a/Documentation/lguest/lguest.c b/Documentation/virtual/lguest/lguest.c index d9da7e14853..d9da7e14853 100644 --- a/Documentation/lguest/lguest.c +++ b/Documentation/virtual/lguest/lguest.c diff --git a/Documentation/lguest/lguest.txt b/Documentation/virtual/lguest/lguest.txt index dad99978a6a..bff0c554485 100644 --- a/Documentation/lguest/lguest.txt +++ b/Documentation/virtual/lguest/lguest.txt @@ -74,7 +74,8 @@ Running Lguest: - Run an lguest as root: - Documentation/lguest/lguest 64 vmlinux --tunnet=192.168.19.1 --block=rootfile root=/dev/vda + Documentation/virtual/lguest/lguest 64 vmlinux --tunnet=192.168.19.1 \ + --block=rootfile root=/dev/vda Explanation: 64: the amount of memory to use, in MB. diff --git a/Documentation/uml/UserModeLinux-HOWTO.txt b/Documentation/virtual/uml/UserModeLinux-HOWTO.txt index 9b7e1904db1..9b7e1904db1 100644 --- a/Documentation/uml/UserModeLinux-HOWTO.txt +++ b/Documentation/virtual/uml/UserModeLinux-HOWTO.txt diff --git a/Documentation/x86/x86_64/boot-options.txt b/Documentation/x86/x86_64/boot-options.txt index 092e596a130..c54b4f503e2 100644 --- a/Documentation/x86/x86_64/boot-options.txt +++ b/Documentation/x86/x86_64/boot-options.txt @@ -206,7 +206,7 @@ IOMMU (input/output memory management unit) (e.g. because you have < 3 GB memory). Kernel boot message: "PCI-DMA: Disabling IOMMU" - 2. <arch/x86_64/kernel/pci-gart.c>: AMD GART based hardware IOMMU. + 2. <arch/x86/kernel/amd_gart_64.c>: AMD GART based hardware IOMMU. Kernel boot message: "PCI-DMA: using GART IOMMU" 3. <arch/x86_64/kernel/pci-swiotlb.c> : Software IOMMU implementation. Used diff --git a/MAINTAINERS b/MAINTAINERS index 16a5c5f2c6a..8df8d2dfba2 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -405,8 +405,8 @@ S: Maintained F: sound/oss/aedsp16.c AFFS FILE SYSTEM -M: Roman Zippel <zippel@linux-m68k.org> -S: Maintained +L: linux-fsdevel@vger.kernel.org +S: Orphan F: Documentation/filesystems/affs.txt F: fs/affs/ @@ -2813,38 +2813,19 @@ F: Documentation/gpio.txt F: drivers/gpio/ F: include/linux/gpio* +GRE DEMULTIPLEXER DRIVER +M: Dmitry Kozlov <xeb@mail.ru> +L: netdev@vger.kernel.org +S: Maintained +F: net/ipv4/gre.c +F: include/net/gre.h + GRETH 10/100/1G Ethernet MAC device driver M: Kristoffer Glembo <kristoffer@gaisler.com> L: netdev@vger.kernel.org S: Maintained F: drivers/net/greth* -HARD DRIVE ACTIVE PROTECTION SYSTEM (HDAPS) DRIVER -M: Frank Seidel <frank@f-seidel.de> -L: platform-driver-x86@vger.kernel.org -W: http://www.kernel.org/pub/linux/kernel/people/fseidel/hdaps/ -S: Maintained -F: drivers/platform/x86/hdaps.c - -HWPOISON MEMORY FAILURE HANDLING -M: Andi Kleen <andi@firstfloor.org> -L: linux-mm@kvack.org -T: git git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6.git hwpoison -S: Maintained -F: mm/memory-failure.c -F: mm/hwpoison-inject.c - -HYPERVISOR VIRTUAL CONSOLE DRIVER -L: linuxppc-dev@lists.ozlabs.org -S: Odd Fixes -F: drivers/tty/hvc/ - -iSCSI BOOT FIRMWARE TABLE (iBFT) DRIVER -M: Peter Jones <pjones@redhat.com> -M: Konrad Rzeszutek Wilk <konrad@kernel.org> -S: Maintained -F: drivers/firmware/iscsi_ibft* - GSPCA FINEPIX SUBDRIVER M: Frank Zago <frank@zago.net> L: linux-media@vger.kernel.org @@ -2895,6 +2876,26 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git S: Maintained F: drivers/media/video/gspca/ +HARD DRIVE ACTIVE PROTECTION SYSTEM (HDAPS) DRIVER +M: Frank Seidel <frank@f-seidel.de> +L: platform-driver-x86@vger.kernel.org +W: http://www.kernel.org/pub/linux/kernel/people/fseidel/hdaps/ +S: Maintained +F: drivers/platform/x86/hdaps.c + +HWPOISON MEMORY FAILURE HANDLING +M: Andi Kleen <andi@firstfloor.org> +L: linux-mm@kvack.org +T: git git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6.git hwpoison +S: Maintained +F: mm/memory-failure.c +F: mm/hwpoison-inject.c + +HYPERVISOR VIRTUAL CONSOLE DRIVER +L: linuxppc-dev@lists.ozlabs.org +S: Odd Fixes +F: drivers/tty/hvc/ + HARDWARE MONITORING M: Jean Delvare <khali@linux-fr.org> M: Guenter Roeck <guenter.roeck@ericsson.com> @@ -2945,8 +2946,8 @@ F: drivers/block/cciss* F: include/linux/cciss_ioctl.h HFS FILESYSTEM -M: Roman Zippel <zippel@linux-m68k.org> -S: Maintained +L: linux-fsdevel@vger.kernel.org +S: Orphan F: Documentation/filesystems/hfs.txt F: fs/hfs/ @@ -3478,6 +3479,12 @@ F: Documentation/isapnp.txt F: drivers/pnp/isapnp/ F: include/linux/isapnp.h +iSCSI BOOT FIRMWARE TABLE (iBFT) DRIVER +M: Peter Jones <pjones@redhat.com> +M: Konrad Rzeszutek Wilk <konrad@kernel.org> +S: Maintained +F: drivers/firmware/iscsi_ibft* + ISCSI M: Mike Christie <michaelc@cs.wisc.edu> L: open-iscsi@googlegroups.com @@ -3807,7 +3814,7 @@ M: Rusty Russell <rusty@rustcorp.com.au> L: lguest@lists.ozlabs.org W: http://lguest.ozlabs.org/ S: Odd Fixes -F: Documentation/lguest/ +F: Documentation/virtual/lguest/ F: arch/x86/lguest/ F: drivers/lguest/ F: include/linux/lguest*.h @@ -3994,7 +4001,6 @@ F: arch/m32r/ M68K ARCHITECTURE M: Geert Uytterhoeven <geert@linux-m68k.org> -M: Roman Zippel <zippel@linux-m68k.org> L: linux-m68k@lists.linux-m68k.org W: http://www.linux-m68k.org/ T: git git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k.git @@ -4989,6 +4995,13 @@ F: Documentation/pps/ F: drivers/pps/ F: include/linux/pps*.h +PPTP DRIVER +M: Dmitry Kozlov <xeb@mail.ru> +L: netdev@vger.kernel.org +S: Maintained +F: drivers/net/pptp.c +W: http://sourceforge.net/projects/accel-pptp + PREEMPTIBLE KERNEL M: Robert Love <rml@tech9.net> L: kpreempt-tech@lists.sourceforge.net @@ -6618,7 +6631,7 @@ L: user-mode-linux-devel@lists.sourceforge.net L: user-mode-linux-user@lists.sourceforge.net W: http://user-mode-linux.sourceforge.net S: Maintained -F: Documentation/uml/ +F: Documentation/virtual/uml/ F: arch/um/ F: fs/hostfs/ F: fs/hppfs/ @@ -7024,20 +7037,6 @@ M: "Maciej W. Rozycki" <macro@linux-mips.org> S: Maintained F: drivers/tty/serial/zs.* -GRE DEMULTIPLEXER DRIVER -M: Dmitry Kozlov <xeb@mail.ru> -L: netdev@vger.kernel.org -S: Maintained -F: net/ipv4/gre.c -F: include/net/gre.h - -PPTP DRIVER -M: Dmitry Kozlov <xeb@mail.ru> -L: netdev@vger.kernel.org -S: Maintained -F: drivers/net/pptp.c -W: http://sourceforge.net/projects/accel-pptp - THE REST M: Linus Torvalds <torvalds@linux-foundation.org> L: linux-kernel@vger.kernel.org @@ -1,7 +1,7 @@ VERSION = 2 PATCHLEVEL = 6 SUBLEVEL = 39 -EXTRAVERSION = -rc6 +EXTRAVERSION = NAME = Flesh-Eating Bats with Fangs # *DOCUMENTATION* @@ -1268,6 +1268,7 @@ help: @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' @echo ' make C=2 [targets] Force check of all c source with $$CHECK' @echo ' make W=1 [targets] Enable extra gcc checks' + @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' @echo '' @echo 'Execute "make" or "make all" to build all targets marked with [*] ' @echo 'For further info see the ./README file' diff --git a/arch/alpha/include/asm/unistd.h b/arch/alpha/include/asm/unistd.h index 058937bf5a7..b1834166922 100644 --- a/arch/alpha/include/asm/unistd.h +++ b/arch/alpha/include/asm/unistd.h @@ -452,10 +452,14 @@ #define __NR_fanotify_init 494 #define __NR_fanotify_mark 495 #define __NR_prlimit64 496 +#define __NR_name_to_handle_at 497 +#define __NR_open_by_handle_at 498 +#define __NR_clock_adjtime 499 +#define __NR_syncfs 500 #ifdef __KERNEL__ -#define NR_SYSCALLS 497 +#define NR_SYSCALLS 501 #define __ARCH_WANT_IPC_PARSE_VERSION #define __ARCH_WANT_OLD_READDIR diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c index 42aa078a5e4..5a621c6d22a 100644 --- a/arch/alpha/kernel/smp.c +++ b/arch/alpha/kernel/smp.c @@ -585,8 +585,7 @@ handle_ipi(struct pt_regs *regs) switch (which) { case IPI_RESCHEDULE: - /* Reschedule callback. Everything to be done - is done by the interrupt return path. */ + scheduler_ipi(); break; case IPI_CALL_FUNC: diff --git a/arch/alpha/kernel/systbls.S b/arch/alpha/kernel/systbls.S index a6a1de9db16..15f999d41c7 100644 --- a/arch/alpha/kernel/systbls.S +++ b/arch/alpha/kernel/systbls.S @@ -498,23 +498,27 @@ sys_call_table: .quad sys_ni_syscall /* sys_timerfd */ .quad sys_eventfd .quad sys_recvmmsg - .quad sys_fallocate /* 480 */ + .quad sys_fallocate /* 480 */ .quad sys_timerfd_create .quad sys_timerfd_settime .quad sys_timerfd_gettime .quad sys_signalfd4 - .quad sys_eventfd2 /* 485 */ + .quad sys_eventfd2 /* 485 */ .quad sys_epoll_create1 .quad sys_dup3 .quad sys_pipe2 .quad sys_inotify_init1 - .quad sys_preadv /* 490 */ + .quad sys_preadv /* 490 */ .quad sys_pwritev .quad sys_rt_tgsigqueueinfo .quad sys_perf_event_open .quad sys_fanotify_init - .quad sys_fanotify_mark /* 495 */ + .quad sys_fanotify_mark /* 495 */ .quad sys_prlimit64 + .quad sys_name_to_handle_at + .quad sys_open_by_handle_at + .quad sys_clock_adjtime + .quad sys_syncfs /* 500 */ .size sys_call_table, . - sys_call_table .type sys_call_table, @object diff --git a/arch/alpha/kernel/time.c b/arch/alpha/kernel/time.c index 918e8e0b72f..818e74ed45d 100644 --- a/arch/alpha/kernel/time.c +++ b/arch/alpha/kernel/time.c @@ -375,8 +375,7 @@ static struct clocksource clocksource_rpcc = { static inline void register_rpcc_clocksource(long cycle_freq) { - clocksource_calc_mult_shift(&clocksource_rpcc, cycle_freq, 4); - clocksource_register(&clocksource_rpcc); + clocksource_register_hz(&clocksource_rpcc, cycle_freq); } #else /* !CONFIG_SMP */ static inline void register_rpcc_clocksource(long cycle_freq) diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile index 8ebbb511c78..0c6852d9350 100644 --- a/arch/arm/boot/compressed/Makefile +++ b/arch/arm/boot/compressed/Makefile @@ -74,7 +74,7 @@ ZTEXTADDR := $(CONFIG_ZBOOT_ROM_TEXT) ZBSSADDR := $(CONFIG_ZBOOT_ROM_BSS) else ZTEXTADDR := 0 -ZBSSADDR := ALIGN(4) +ZBSSADDR := ALIGN(8) endif SEDFLAGS = s/TEXT_START/$(ZTEXTADDR)/;s/BSS_START/$(ZBSSADDR)/ diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S index adf583cd0c3..49f5b2eaaa8 100644 --- a/arch/arm/boot/compressed/head.S +++ b/arch/arm/boot/compressed/head.S @@ -179,15 +179,14 @@ not_angel: bl cache_on restart: adr r0, LC0 - ldmia r0, {r1, r2, r3, r5, r6, r9, r11, r12} - ldr sp, [r0, #32] + ldmia r0, {r1, r2, r3, r6, r9, r11, r12} + ldr sp, [r0, #28] /* * We might be running at a different address. We need * to fix up various pointers. */ sub r0, r0, r1 @ calculate the delta offset - add r5, r5, r0 @ _start add r6, r6, r0 @ _edata #ifndef CONFIG_ZBOOT_ROM @@ -206,31 +205,40 @@ restart: adr r0, LC0 /* * Check to see if we will overwrite ourselves. * r4 = final kernel address - * r5 = start of this image * r9 = size of decompressed image * r10 = end of this image, including bss/stack/malloc space if non XIP * We basically want: - * r4 >= r10 -> OK - * r4 + image length <= r5 -> OK + * r4 - 16k page directory >= r10 -> OK + * r4 + image length <= current position (pc) -> OK */ + add r10, r10, #16384 cmp r4, r10 bhs wont_overwrite add r10, r4, r9 - cmp r10, r5 + ARM( cmp r10, pc ) + THUMB( mov lr, pc ) + THUMB( cmp r10, lr ) bls wont_overwrite /* * Relocate ourselves past the end of the decompressed kernel. - * r5 = start of this image * r6 = _edata * r10 = end of the decompressed kernel * Because we always copy ahead, we need to do it from the end and go * backward in case the source and destination overlap. */ - /* Round up to next 256-byte boundary. */ - add r10, r10, #256 + /* + * Bump to the next 256-byte boundary with the size of + * the relocation code added. This avoids overwriting + * ourself when the offset is small. + */ + add r10, r10, #((reloc_code_end - restart + 256) & ~255) bic r10, r10, #255 + /* Get start of code we want to copy and align it down. */ + adr r5, restart + bic r5, r5, #31 + sub r9, r6, r5 @ size to copy add r9, r9, #31 @ rounded up to a multiple bic r9, r9, #31 @ ... of 32 bytes @@ -245,6 +253,11 @@ restart: adr r0, LC0 /* Preserve offset to relocated code. */ sub r6, r9, r6 +#ifndef CONFIG_ZBOOT_ROM + /* cache_clean_flush may use the stack, so relocate it */ + add sp, sp, r6 +#endif + bl cache_clean_flush adr r0, BSYM(restart) @@ -333,7 +346,6 @@ not_relocated: mov r0, #0 LC0: .word LC0 @ r1 .word __bss_start @ r2 .word _end @ r3 - .word _start @ r5 .word _edata @ r6 .word _image_size @ r9 .word _got_start @ r11 @@ -1062,6 +1074,7 @@ memdump: mov r12, r0 #endif .ltorg +reloc_code_end: .align .section ".stack", "aw", %nobits diff --git a/arch/arm/boot/compressed/vmlinux.lds.in b/arch/arm/boot/compressed/vmlinux.lds.in index 5309909d728..ea80abe7884 100644 --- a/arch/arm/boot/compressed/vmlinux.lds.in +++ b/arch/arm/boot/compressed/vmlinux.lds.in @@ -54,6 +54,7 @@ SECTIONS .bss : { *(.bss) } _end = .; + . = ALIGN(8); /* the stack must be 64-bit aligned */ .stack : { *(.stack) } .stab 0 : { *(.stab) } diff --git a/arch/arm/common/vic.c b/arch/arm/common/vic.c index 113085a7712..7aa4262ada7 100644 --- a/arch/arm/common/vic.c +++ b/arch/arm/common/vic.c @@ -22,17 +22,16 @@ #include <linux/init.h> #include <linux/list.h> #include <linux/io.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/device.h> #include <linux/amba/bus.h> #include <asm/mach/irq.h> #include <asm/hardware/vic.h> -#if defined(CONFIG_PM) +#ifdef CONFIG_PM /** * struct vic_device - VIC PM device - * @sysdev: The system device which is registered. * @irq: The IRQ number for the base of the VIC. * @base: The register base for the VIC. * @resume_sources: A bitmask of interrupts for resume. @@ -43,8 +42,6 @@ * @protect: Save for VIC_PROTECT. */ struct vic_device { - struct sys_device sysdev; - void __iomem *base; int irq; u32 resume_sources; @@ -59,11 +56,6 @@ struct vic_device { static struct vic_device vic_devices[CONFIG_ARM_VIC_NR]; static int vic_id; - -static inline struct vic_device *to_vic(struct sys_device *sys) -{ - return container_of(sys, struct vic_device, sysdev); -} #endif /* CONFIG_PM */ /** @@ -85,10 +77,9 @@ static void vic_init2(void __iomem *base) writel(32, base + VIC_PL190_DEF_VECT_ADDR); } -#if defined(CONFIG_PM) -static int vic_class_resume(struct sys_device *dev) +#ifdef CONFIG_PM +static void resume_one_vic(struct vic_device *vic) { - struct vic_device *vic = to_vic(dev); void __iomem *base = vic->base; printk(KERN_DEBUG "%s: resuming vic at %p\n", __func__, base); @@ -107,13 +98,18 @@ static int vic_class_resume(struct sys_device *dev) writel(vic->soft_int, base + VIC_INT_SOFT); writel(~vic->soft_int, base + VIC_INT_SOFT_CLEAR); +} - return 0; +static void vic_resume(void) +{ + int id; + + for (id = vic_id - 1; id >= 0; id--) + resume_one_vic(vic_devices + id); } -static int vic_class_suspend(struct sys_device *dev, pm_message_t state) +static void suspend_one_vic(struct vic_device *vic) { - struct vic_device *vic = to_vic(dev); void __iomem *base = vic->base; printk(KERN_DEBUG "%s: suspending vic at %p\n", __func__, base); @@ -128,14 +124,21 @@ static int vic_class_suspend(struct sys_device *dev, pm_message_t state) writel(vic->resume_irqs, base + VIC_INT_ENABLE); writel(~vic->resume_irqs, base + VIC_INT_ENABLE_CLEAR); +} + +static int vic_suspend(void) +{ + int id; + + for (id = 0; id < vic_id; id++) + suspend_one_vic(vic_devices + id); return 0; } -struct sysdev_class vic_class = { - .name = "vic", - .suspend = vic_class_suspend, - .resume = vic_class_resume, +struct syscore_ops vic_syscore_ops = { + .suspend = vic_suspend, + .resume = vic_resume, }; /** @@ -147,30 +150,8 @@ struct sysdev_class vic_class = { */ static int __init vic_pm_init(void) { - struct vic_device *dev = vic_devices; - int err; - int id; - - if (vic_id == 0) - return 0; - - err = sysdev_class_register(&vic_class); - if (err) { - printk(KERN_ERR "%s: cannot register class\n", __func__); - return err; - } - - for (id = 0; id < vic_id; id++, dev++) { - dev->sysdev.id = id; - dev->sysdev.cls = &vic_class; - - err = sysdev_register(&dev->sysdev); - if (err) { - printk(KERN_ERR "%s: failed to register device\n", - __func__); - return err; - } - } + if (vic_id > 0) + register_syscore_ops(&vic_syscore_ops); return 0; } diff --git a/arch/arm/configs/at91x40_defconfig b/arch/arm/configs/at91x40_defconfig new file mode 100644 index 00000000000..c55e9212fcb --- /dev/null +++ b/arch/arm/configs/at91x40_defconfig @@ -0,0 +1,48 @@ +CONFIG_EXPERIMENTAL=y +CONFIG_LOG_BUF_SHIFT=14 +CONFIG_EMBEDDED=y +# CONFIG_HOTPLUG is not set +# CONFIG_ELF_CORE is not set +# CONFIG_FUTEX is not set +# CONFIG_TIMERFD is not set +# CONFIG_VM_EVENT_COUNTERS is not set +# CONFIG_COMPAT_BRK is not set +CONFIG_SLAB=y +# CONFIG_LBDAF is not set +# CONFIG_BLK_DEV_BSG is not set +# CONFIG_IOSCHED_DEADLINE is not set +# CONFIG_IOSCHED_CFQ is not set +# CONFIG_MMU is not set +CONFIG_ARCH_AT91=y +CONFIG_ARCH_AT91X40=y +CONFIG_MACH_AT91EB01=y +CONFIG_AT91_EARLY_USART0=y +CONFIG_CPU_ARM7TDMI=y +CONFIG_SET_MEM_PARAM=y +CONFIG_DRAM_BASE=0x01000000 +CONFIG_DRAM_SIZE=0x00400000 +CONFIG_FLASH_MEM_BASE=0x01400000 +CONFIG_PROCESSOR_ID=0x14000040 +CONFIG_ZBOOT_ROM_TEXT=0x0 +CONFIG_ZBOOT_ROM_BSS=0x0 +CONFIG_BINFMT_FLAT=y +# CONFIG_SUSPEND is not set +# CONFIG_FW_LOADER is not set +CONFIG_MTD=y +CONFIG_MTD_PARTITIONS=y +CONFIG_MTD_CHAR=y +CONFIG_MTD_BLOCK=y +CONFIG_MTD_RAM=y +CONFIG_MTD_ROM=y +CONFIG_BLK_DEV_RAM=y +# CONFIG_INPUT is not set +# CONFIG_SERIO is not set +# CONFIG_VT is not set +# CONFIG_DEVKMEM is not set +# CONFIG_HW_RANDOM is not set +# CONFIG_HWMON is not set +# CONFIG_USB_SUPPORT is not set +CONFIG_EXT2_FS=y +# CONFIG_DNOTIFY is not set +CONFIG_ROMFS_FS=y +# CONFIG_ENABLE_MUST_CHECK is not set diff --git a/arch/arm/include/asm/i8253.h b/arch/arm/include/asm/i8253.h new file mode 100644 index 00000000000..70656b69d5c --- /dev/null +++ b/arch/arm/include/asm/i8253.h @@ -0,0 +1,15 @@ +#ifndef __ASMARM_I8253_H +#define __ASMARM_I8253_H + +/* i8253A PIT registers */ +#define PIT_MODE 0x43 +#define PIT_CH0 0x40 + +#define PIT_LATCH ((PIT_TICK_RATE + HZ / 2) / HZ) + +extern raw_spinlock_t i8253_lock; + +#define outb_pit outb_p +#define inb_pit inb_p + +#endif diff --git a/arch/arm/include/asm/mach/time.h b/arch/arm/include/asm/mach/time.h index 883f6be5117..d5adaae5ee2 100644 --- a/arch/arm/include/asm/mach/time.h +++ b/arch/arm/include/asm/mach/time.h @@ -34,7 +34,6 @@ * timer interrupt which may be pending. */ struct sys_timer { - struct sys_device dev; void (*init)(void); void (*suspend)(void); void (*resume)(void); diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h index 885be097769..832888d0c20 100644 --- a/arch/arm/include/asm/system.h +++ b/arch/arm/include/asm/system.h @@ -159,7 +159,7 @@ extern unsigned int user_debug; #include <mach/barriers.h> #elif defined(CONFIG_ARM_DMA_MEM_BUFFERABLE) || defined(CONFIG_SMP) #define mb() do { dsb(); outer_sync(); } while (0) -#define rmb() dmb() +#define rmb() dsb() #define wmb() mb() #else #include <asm/memory.h> diff --git a/arch/arm/kernel/leds.c b/arch/arm/kernel/leds.c index 31a316c1777..0f107dcb034 100644 --- a/arch/arm/kernel/leds.c +++ b/arch/arm/kernel/leds.c @@ -10,6 +10,7 @@ #include <linux/module.h> #include <linux/init.h> #include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <asm/leds.h> @@ -69,36 +70,37 @@ static ssize_t leds_store(struct sys_device *dev, static SYSDEV_ATTR(event, 0200, NULL, leds_store); -static int leds_suspend(struct sys_device *dev, pm_message_t state) +static struct sysdev_class leds_sysclass = { + .name = "leds", +}; + +static struct sys_device leds_device = { + .id = 0, + .cls = &leds_sysclass, +}; + +static int leds_suspend(void) { leds_event(led_stop); return 0; } -static int leds_resume(struct sys_device *dev) +static void leds_resume(void) { leds_event(led_start); - return 0; } -static int leds_shutdown(struct sys_device *dev) +static void leds_shutdown(void) { leds_event(led_halted); - return 0; } -static struct sysdev_class leds_sysclass = { - .name = "leds", +static struct syscore_ops leds_syscore_ops = { .shutdown = leds_shutdown, .suspend = leds_suspend, .resume = leds_resume, }; -static struct sys_device leds_device = { - .id = 0, - .cls = &leds_sysclass, -}; - static int __init leds_init(void) { int ret; @@ -107,6 +109,8 @@ static int __init leds_init(void) ret = sysdev_register(&leds_device); if (ret == 0) ret = sysdev_create_file(&leds_device, &attr_event); + if (ret == 0) + register_syscore_ops(&leds_syscore_ops); return ret; } diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c index 2bf27f364d0..8182f45ca49 100644 --- a/arch/arm/kernel/ptrace.c +++ b/arch/arm/kernel/ptrace.c @@ -767,12 +767,20 @@ long arch_ptrace(struct task_struct *child, long request, #ifdef CONFIG_HAVE_HW_BREAKPOINT case PTRACE_GETHBPREGS: + if (ptrace_get_breakpoints(child) < 0) + return -ESRCH; + ret = ptrace_gethbpregs(child, addr, (unsigned long __user *)data); + ptrace_put_breakpoints(child); break; case PTRACE_SETHBPREGS: + if (ptrace_get_breakpoints(child) < 0) + return -ESRCH; + ret = ptrace_sethbpregs(child, addr, (unsigned long __user *)data); + ptrace_put_breakpoints(child); break; #endif diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c index cb839831764..0340224cf73 100644 --- a/arch/arm/kernel/signal.c +++ b/arch/arm/kernel/signal.c @@ -597,19 +597,13 @@ setup_rt_frame(int usig, struct k_sigaction *ka, siginfo_t *info, return err; } -static inline void setup_syscall_restart(struct pt_regs *regs) -{ - regs->ARM_r0 = regs->ARM_ORIG_r0; - regs->ARM_pc -= thumb_mode(regs) ? 2 : 4; -} - /* * OK, we're invoking a handler */ static int handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info, sigset_t *oldset, - struct pt_regs * regs, int syscall) + struct pt_regs * regs) { struct thread_info *thread = current_thread_info(); struct task_struct *tsk = current; @@ -617,26 +611,6 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, int ret; /* - * If we were from a system call, check for system call restarting... - */ - if (syscall) { - switch (regs->ARM_r0) { - case -ERESTART_RESTARTBLOCK: - case -ERESTARTNOHAND: - regs->ARM_r0 = -EINTR; - break; - case -ERESTARTSYS: - if (!(ka->sa.sa_flags & SA_RESTART)) { - regs->ARM_r0 = -EINTR; - break; - } - /* fallthrough */ - case -ERESTARTNOINTR: - setup_syscall_restart(regs); - } - } - - /* * translate the signal */ if (usig < 32 && thread->exec_domain && thread->exec_domain->signal_invmap) @@ -685,6 +659,7 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, */ static void do_signal(struct pt_regs *regs, int syscall) { + unsigned int retval = 0, continue_addr = 0, restart_addr = 0; struct k_sigaction ka; siginfo_t info; int signr; @@ -698,18 +673,61 @@ static void do_signal(struct pt_regs *regs, int syscall) if (!user_mode(regs)) return; + /* + * If we were from a system call, check for system call restarting... + */ + if (syscall) { + continue_addr = regs->ARM_pc; + restart_addr = continue_addr - (thumb_mode(regs) ? 2 : 4); + retval = regs->ARM_r0; + + /* + * Prepare for system call restart. We do this here so that a + * debugger will see the already changed PSW. + */ + switch (retval) { + case -ERESTARTNOHAND: + case -ERESTARTSYS: + case -ERESTARTNOINTR: + regs->ARM_r0 = regs->ARM_ORIG_r0; + regs->ARM_pc = restart_addr; + break; + case -ERESTART_RESTARTBLOCK: + regs->ARM_r0 = -EINTR; + break; + } + } + if (try_to_freeze()) goto no_signal; + /* + * Get the signal to deliver. When running under ptrace, at this + * point the debugger may change all our registers ... + */ signr = get_signal_to_deliver(&info, &ka, regs, NULL); if (signr > 0) { sigset_t *oldset; + /* + * Depending on the signal settings we may need to revert the + * decision to restart the system call. But skip this if a + * debugger has chosen to restart at a different PC. + */ + if (regs->ARM_pc == restart_addr) { + if (retval == -ERESTARTNOHAND + || (retval == -ERESTARTSYS + && !(ka.sa.sa_flags & SA_RESTART))) { + regs->ARM_r0 = -EINTR; + regs->ARM_pc = continue_addr; + } + } + if (test_thread_flag(TIF_RESTORE_SIGMASK)) oldset = ¤t->saved_sigmask; else oldset = ¤t->blocked; - if (handle_signal(signr, &ka, &info, oldset, regs, syscall) == 0) { + if (handle_signal(signr, &ka, &info, oldset, regs) == 0) { /* * A signal was successfully delivered; the saved * sigmask will have been stored in the signal frame, @@ -723,11 +741,14 @@ static void do_signal(struct pt_regs *regs, int syscall) } no_signal: - /* - * No signal to deliver to the process - restart the syscall. - */ if (syscall) { - if (regs->ARM_r0 == -ERESTART_RESTARTBLOCK) { + /* + * Handle restarting a different system call. As above, + * if a debugger has chosen to restart at a different PC, + * ignore the restart. + */ + if (retval == -ERESTART_RESTARTBLOCK + && regs->ARM_pc == continue_addr) { if (thumb_mode(regs)) { regs->ARM_r7 = __NR_restart_syscall - __NR_SYSCALL_BASE; regs->ARM_pc -= 2; @@ -750,11 +771,6 @@ static void do_signal(struct pt_regs *regs, int syscall) #endif } } - if (regs->ARM_r0 == -ERESTARTNOHAND || - regs->ARM_r0 == -ERESTARTSYS || - regs->ARM_r0 == -ERESTARTNOINTR) { - setup_syscall_restart(regs); - } /* If there's no signal to deliver, we just put the saved sigmask * back. diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index f29b8a29b17..007a0a950e7 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -560,10 +560,7 @@ asmlinkage void __exception_irq_entry do_IPI(int ipinr, struct pt_regs *regs) break; case IPI_RESCHEDULE: - /* - * nothing more to do - eveything is - * done on the interrupt return path - */ + scheduler_ipi(); break; case IPI_CALL_FUNC: diff --git a/arch/arm/kernel/time.c b/arch/arm/kernel/time.c index 1ff46cabc7e..cb634c3e28e 100644 --- a/arch/arm/kernel/time.c +++ b/arch/arm/kernel/time.c @@ -21,7 +21,7 @@ #include <linux/timex.h> #include <linux/errno.h> #include <linux/profile.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/timer.h> #include <linux/irq.h> @@ -115,48 +115,37 @@ void timer_tick(void) #endif #if defined(CONFIG_PM) && !defined(CONFIG_GENERIC_CLOCKEVENTS) -static int timer_suspend(struct sys_device *dev, pm_message_t state) +static int timer_suspend(void) { - struct sys_timer *timer = container_of(dev, struct sys_timer, dev); - - if (timer->suspend != NULL) - timer->suspend(); + if (system_timer->suspend) + system_timer->suspend(); return 0; } -static int timer_resume(struct sys_device *dev) +static void timer_resume(void) { - struct sys_timer *timer = container_of(dev, struct sys_timer, dev); - - if (timer->resume != NULL) - timer->resume(); - - return 0; + if (system_timer->resume) + system_timer->resume(); } #else #define timer_suspend NULL #define timer_resume NULL #endif -static struct sysdev_class timer_sysclass = { - .name = "timer", +static struct syscore_ops timer_syscore_ops = { .suspend = timer_suspend, .resume = timer_resume, }; -static int __init timer_init_sysfs(void) +static int __init timer_init_syscore_ops(void) { - int ret = sysdev_class_register(&timer_sysclass); - if (ret == 0) { - system_timer->dev.cls = &timer_sysclass; - ret = sysdev_register(&system_timer->dev); - } + register_syscore_ops(&timer_syscore_ops); - return ret; + return 0; } -device_initcall(timer_init_sysfs); +device_initcall(timer_init_syscore_ops); void __init time_init(void) { diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig index 19390231a0e..2d299bf5d72 100644 --- a/arch/arm/mach-at91/Kconfig +++ b/arch/arm/mach-at91/Kconfig @@ -83,6 +83,7 @@ config ARCH_AT91CAP9 select CPU_ARM926T select GENERIC_CLOCKEVENTS select HAVE_FB_ATMEL + select HAVE_NET_MACB config ARCH_AT572D940HF bool "AT572D940HF" diff --git a/arch/arm/mach-at91/board-eb01.c b/arch/arm/mach-at91/board-eb01.c index 1f9d3cb64c5..d8df59a3426 100644 --- a/arch/arm/mach-at91/board-eb01.c +++ b/arch/arm/mach-at91/board-eb01.c @@ -30,6 +30,11 @@ #include <mach/board.h> #include "generic.h" +static void __init at91eb01_init_irq(void) +{ + at91x40_init_interrupts(NULL); +} + static void __init at91eb01_map_io(void) { at91x40_initialize(40000000); @@ -38,7 +43,7 @@ static void __init at91eb01_map_io(void) MACHINE_START(AT91EB01, "Atmel AT91 EB01") /* Maintainer: Greg Ungerer <gerg@snapgear.com> */ .timer = &at91x40_timer, - .init_irq = at91x40_init_interrupts, + .init_irq = at91eb01_init_irq, .map_io = at91eb01_map_io, MACHINE_END diff --git a/arch/arm/mach-at91/include/mach/cpu.h b/arch/arm/mach-at91/include/mach/cpu.h index 3bef931d0b1..0700f212530 100644 --- a/arch/arm/mach-at91/include/mach/cpu.h +++ b/arch/arm/mach-at91/include/mach/cpu.h @@ -27,6 +27,7 @@ #define ARCH_ID_AT91SAM9G45 0x819b05a0 #define ARCH_ID_AT91SAM9G45MRL 0x819b05a2 /* aka 9G45-ES2 & non ES lots */ #define ARCH_ID_AT91SAM9G45ES 0x819b05a1 /* 9G45-ES (Engineering Sample) */ +#define ARCH_ID_AT91SAM9X5 0x819a05a0 #define ARCH_ID_AT91CAP9 0x039A03A0 #define ARCH_ID_AT91SAM9XE128 0x329973a0 @@ -55,6 +56,12 @@ static inline unsigned long at91_cpu_fully_identify(void) #define ARCH_EXID_AT91SAM9G46 0x00000003 #define ARCH_EXID_AT91SAM9G45 0x00000004 +#define ARCH_EXID_AT91SAM9G15 0x00000000 +#define ARCH_EXID_AT91SAM9G35 0x00000001 +#define ARCH_EXID_AT91SAM9X35 0x00000002 +#define ARCH_EXID_AT91SAM9G25 0x00000003 +#define ARCH_EXID_AT91SAM9X25 0x00000004 + static inline unsigned long at91_exid_identify(void) { return at91_sys_read(AT91_DBGU_EXID); @@ -143,6 +150,27 @@ static inline unsigned long at91cap9_rev_identify(void) #define cpu_is_at91sam9m11() (0) #endif +#ifdef CONFIG_ARCH_AT91SAM9X5 +#define cpu_is_at91sam9x5() (at91_cpu_identify() == ARCH_ID_AT91SAM9X5) +#define cpu_is_at91sam9g15() (cpu_is_at91sam9x5() && \ + (at91_exid_identify() == ARCH_EXID_AT91SAM9G15)) +#define cpu_is_at91sam9g35() (cpu_is_at91sam9x5() && \ + (at91_exid_identify() == ARCH_EXID_AT91SAM9G35)) +#define cpu_is_at91sam9x35() (cpu_is_at91sam9x5() && \ + (at91_exid_identify() == ARCH_EXID_AT91SAM9X35)) +#define cpu_is_at91sam9g25() (cpu_is_at91sam9x5() && \ + (at91_exid_identify() == ARCH_EXID_AT91SAM9G25)) +#define cpu_is_at91sam9x25() (cpu_is_at91sam9x5() && \ + (at91_exid_identify() == ARCH_EXID_AT91SAM9X25)) +#else +#define cpu_is_at91sam9x5() (0) +#define cpu_is_at91sam9g15() (0) +#define cpu_is_at91sam9g35() (0) +#define cpu_is_at91sam9x35() (0) +#define cpu_is_at91sam9g25() (0) +#define cpu_is_at91sam9x25() (0) +#endif + #ifdef CONFIG_ARCH_AT91CAP9 #define cpu_is_at91cap9() (at91_cpu_identify() == ARCH_ID_AT91CAP9) #define cpu_is_at91cap9_revB() (at91cap9_rev_identify() == ARCH_REVISION_CAP9_B) diff --git a/arch/arm/mach-davinci/cpufreq.c b/arch/arm/mach-davinci/cpufreq.c index 0a95be1512b..41669ecc1f9 100644 --- a/arch/arm/mach-davinci/cpufreq.c +++ b/arch/arm/mach-davinci/cpufreq.c @@ -94,9 +94,7 @@ static int davinci_target(struct cpufreq_policy *policy, if (freqs.old == freqs.new) return ret; - cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, - dev_driver_string(cpufreq.dev), - "transition: %u --> %u\n", freqs.old, freqs.new); + dev_dbg(&cpufreq.dev, "transition: %u --> %u\n", freqs.old, freqs.new); ret = cpufreq_frequency_table_target(policy, pdata->freq_table, freqs.new, relation, &idx); diff --git a/arch/arm/mach-exynos4/pm.c b/arch/arm/mach-exynos4/pm.c index 10d917d9e3a..8755ca8dd48 100644 --- a/arch/arm/mach-exynos4/pm.c +++ b/arch/arm/mach-exynos4/pm.c @@ -16,6 +16,7 @@ #include <linux/init.h> #include <linux/suspend.h> +#include <linux/syscore_ops.h> #include <linux/io.h> #include <asm/cacheflush.h> @@ -372,7 +373,27 @@ void exynos4_scu_enable(void __iomem *scu_base) flush_cache_all(); } -static int exynos4_pm_resume(struct sys_device *dev) +static struct sysdev_driver exynos4_pm_driver = { + .add = exynos4_pm_add, +}; + +static __init int exynos4_pm_drvinit(void) +{ + unsigned int tmp; + + s3c_pm_init(); + + /* All wakeup disable */ + + tmp = __raw_readl(S5P_WAKEUP_MASK); + tmp |= ((0xFF << 8) | (0x1F << 1)); + __raw_writel(tmp, S5P_WAKEUP_MASK); + + return sysdev_driver_register(&exynos4_sysclass, &exynos4_pm_driver); +} +arch_initcall(exynos4_pm_drvinit); + +static void exynos4_pm_resume(void) { /* For release retention */ @@ -394,27 +415,15 @@ static int exynos4_pm_resume(struct sys_device *dev) /* enable L2X0*/ writel_relaxed(1, S5P_VA_L2CC + L2X0_CTRL); #endif - - return 0; } -static struct sysdev_driver exynos4_pm_driver = { - .add = exynos4_pm_add, +static struct syscore_ops exynos4_pm_syscore_ops = { .resume = exynos4_pm_resume, }; -static __init int exynos4_pm_drvinit(void) +static __init int exynos4_pm_syscore_init(void) { - unsigned int tmp; - - s3c_pm_init(); - - /* All wakeup disable */ - - tmp = __raw_readl(S5P_WAKEUP_MASK); - tmp |= ((0xFF << 8) | (0x1F << 1)); - __raw_writel(tmp, S5P_WAKEUP_MASK); - - return sysdev_driver_register(&exynos4_sysclass, &exynos4_pm_driver); + register_syscore_ops(&exynos4_pm_syscore_ops); + return 0; } -arch_initcall(exynos4_pm_drvinit); +arch_initcall(exynos4_pm_syscore_init); diff --git a/arch/arm/mach-footbridge/Kconfig b/arch/arm/mach-footbridge/Kconfig index bdd257921cf..46adca068f2 100644 --- a/arch/arm/mach-footbridge/Kconfig +++ b/arch/arm/mach-footbridge/Kconfig @@ -4,6 +4,7 @@ menu "Footbridge Implementations" config ARCH_CATS bool "CATS" + select CLKSRC_I8253 select FOOTBRIDGE_HOST select ISA select ISA_DMA @@ -59,6 +60,7 @@ config ARCH_EBSA285_HOST config ARCH_NETWINDER bool "NetWinder" + select CLKSRC_I8253 select FOOTBRIDGE_HOST select ISA select ISA_DMA diff --git a/arch/arm/mach-footbridge/isa-timer.c b/arch/arm/mach-footbridge/isa-timer.c index 441c6ce0d55..7020f1a3fec 100644 --- a/arch/arm/mach-footbridge/isa-timer.c +++ b/arch/arm/mach-footbridge/isa-timer.c @@ -10,53 +10,16 @@ #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/io.h> +#include <linux/spinlock.h> #include <linux/timex.h> #include <asm/irq.h> - +#include <asm/i8253.h> #include <asm/mach/time.h> #include "common.h" -#define PIT_MODE 0x43 -#define PIT_CH0 0x40 - -#define PIT_LATCH ((PIT_TICK_RATE + HZ / 2) / HZ) - -static cycle_t pit_read(struct clocksource *cs) -{ - unsigned long flags; - static int old_count; - static u32 old_jifs; - int count; - u32 jifs; - - raw_local_irq_save(flags); - - jifs = jiffies; - outb_p(0x00, PIT_MODE); /* latch the count */ - count = inb_p(PIT_CH0); /* read the latched count */ - count |= inb_p(PIT_CH0) << 8; - - if (count > old_count && jifs == old_jifs) - count = old_count; - - old_count = count; - old_jifs = jifs; - - raw_local_irq_restore(flags); - - count = (PIT_LATCH - 1) - count; - - return (cycle_t)(jifs * PIT_LATCH) + count; -} - -static struct clocksource pit_cs = { - .name = "pit", - .rating = 110, - .read = pit_read, - .mask = CLOCKSOURCE_MASK(32), -}; +DEFINE_RAW_SPINLOCK(i8253_lock); static void pit_set_mode(enum clock_event_mode mode, struct clock_event_device *evt) @@ -121,7 +84,7 @@ static void __init isa_timer_init(void) pit_ce.max_delta_ns = clockevent_delta2ns(0x7fff, &pit_ce); pit_ce.min_delta_ns = clockevent_delta2ns(0x000f, &pit_ce); - clocksource_register_hz(&pit_cs, PIT_TICK_RATE); + clocksource_i8253_init(); setup_irq(pit_ce.irq, &pit_timer_irq); clockevents_register_device(&pit_ce); diff --git a/arch/arm/mach-integrator/integrator_ap.c b/arch/arm/mach-integrator/integrator_ap.c index 980803ff348..d3e96451529 100644 --- a/arch/arm/mach-integrator/integrator_ap.c +++ b/arch/arm/mach-integrator/integrator_ap.c @@ -24,7 +24,7 @@ #include <linux/platform_device.h> #include <linux/slab.h> #include <linux/string.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/amba/bus.h> #include <linux/amba/kmi.h> #include <linux/clocksource.h> @@ -180,13 +180,13 @@ static void __init ap_init_irq(void) #ifdef CONFIG_PM static unsigned long ic_irq_enable; -static int irq_suspend(struct sys_device *dev, pm_message_t state) +static int irq_suspend(void) { ic_irq_enable = readl(VA_IC_BASE + IRQ_ENABLE); return 0; } -static int irq_resume(struct sys_device *dev) +static void irq_resume(void) { /* disable all irq sources */ writel(-1, VA_CMIC_BASE + IRQ_ENABLE_CLEAR); @@ -194,33 +194,25 @@ static int irq_resume(struct sys_device *dev) writel(-1, VA_IC_BASE + FIQ_ENABLE_CLEAR); writel(ic_irq_enable, VA_IC_BASE + IRQ_ENABLE_SET); - return 0; } #else #define irq_suspend NULL #define irq_resume NULL #endif -static struct sysdev_class irq_class = { - .name = "irq", +static struct syscore_ops irq_syscore_ops = { .suspend = irq_suspend, .resume = irq_resume, }; -static struct sys_device irq_device = { - .id = 0, - .cls = &irq_class, -}; - -static int __init irq_init_sysfs(void) +static int __init irq_syscore_init(void) { - int ret = sysdev_class_register(&irq_class); - if (ret == 0) - ret = sysdev_register(&irq_device); - return ret; + register_syscore_ops(&irq_syscore_ops); + + return 0; } -device_initcall(irq_init_sysfs); +device_initcall(irq_syscore_init); /* * Flash handling. diff --git a/arch/arm/mach-omap1/pm_bus.c b/arch/arm/mach-omap1/pm_bus.c index 6588c22b8a6..fe31d933f0e 100644 --- a/arch/arm/mach-omap1/pm_bus.c +++ b/arch/arm/mach-omap1/pm_bus.c @@ -24,75 +24,50 @@ #ifdef CONFIG_PM_RUNTIME static int omap1_pm_runtime_suspend(struct device *dev) { - struct clk *iclk, *fclk; - int ret = 0; + int ret; dev_dbg(dev, "%s\n", __func__); ret = pm_generic_runtime_suspend(dev); + if (ret) + return ret; - fclk = clk_get(dev, "fck"); - if (!IS_ERR(fclk)) { - clk_disable(fclk); - clk_put(fclk); - } - - iclk = clk_get(dev, "ick"); - if (!IS_ERR(iclk)) { - clk_disable(iclk); - clk_put(iclk); + ret = pm_runtime_clk_suspend(dev); + if (ret) { + pm_generic_runtime_resume(dev); + return ret; } return 0; -}; +} static int omap1_pm_runtime_resume(struct device *dev) { - struct clk *iclk, *fclk; - dev_dbg(dev, "%s\n", __func__); - iclk = clk_get(dev, "ick"); - if (!IS_ERR(iclk)) { - clk_enable(iclk); - clk_put(iclk); - } + pm_runtime_clk_resume(dev); + return pm_generic_runtime_resume(dev); +} - fclk = clk_get(dev, "fck"); - if (!IS_ERR(fclk)) { - clk_enable(fclk); - clk_put(fclk); - } +static struct dev_power_domain default_power_domain = { + .ops = { + .runtime_suspend = omap1_pm_runtime_suspend, + .runtime_resume = omap1_pm_runtime_resume, + USE_PLATFORM_PM_SLEEP_OPS + }, +}; - return pm_generic_runtime_resume(dev); +static struct pm_clk_notifier_block platform_bus_notifier = { + .pwr_domain = &default_power_domain, + .con_ids = { "ick", "fck", NULL, }, }; static int __init omap1_pm_runtime_init(void) { - const struct dev_pm_ops *pm; - struct dev_pm_ops *omap_pm; - if (!cpu_class_is_omap1()) return -ENODEV; - pm = platform_bus_get_pm_ops(); - if (!pm) { - pr_err("%s: unable to get dev_pm_ops from platform_bus\n", - __func__); - return -ENODEV; - } - - omap_pm = kmemdup(pm, sizeof(struct dev_pm_ops), GFP_KERNEL); - if (!omap_pm) { - pr_err("%s: unable to alloc memory for new dev_pm_ops\n", - __func__); - return -ENOMEM; - } - - omap_pm->runtime_suspend = omap1_pm_runtime_suspend; - omap_pm->runtime_resume = omap1_pm_runtime_resume; - - platform_bus_set_pm_ops(omap_pm); + pm_runtime_clk_add_notifier(&platform_bus_type, &platform_bus_notifier); return 0; } diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index 512b1520445..66dfbccacd2 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile @@ -59,10 +59,10 @@ endif # Power Management ifeq ($(CONFIG_PM),y) obj-$(CONFIG_ARCH_OMAP2) += pm24xx.o -obj-$(CONFIG_ARCH_OMAP2) += sleep24xx.o pm_bus.o +obj-$(CONFIG_ARCH_OMAP2) += sleep24xx.o obj-$(CONFIG_ARCH_OMAP3) += pm34xx.o sleep34xx.o \ - cpuidle34xx.o pm_bus.o -obj-$(CONFIG_ARCH_OMAP4) += pm44xx.o pm_bus.o + cpuidle34xx.o +obj-$(CONFIG_ARCH_OMAP4) += pm44xx.o obj-$(CONFIG_PM_DEBUG) += pm-debug.o obj-$(CONFIG_OMAP_SMARTREFLEX) += sr_device.o smartreflex.o obj-$(CONFIG_OMAP_SMARTREFLEX_CLASS3) += smartreflex-class3.o diff --git a/arch/arm/mach-omap2/clkt34xx_dpll3m2.c b/arch/arm/mach-omap2/clkt34xx_dpll3m2.c index b2b1e37bb6b..d6e34dd9e7e 100644 --- a/arch/arm/mach-omap2/clkt34xx_dpll3m2.c +++ b/arch/arm/mach-omap2/clkt34xx_dpll3m2.c @@ -115,6 +115,7 @@ int omap3_core_dpll_m2_set_rate(struct clk *clk, unsigned long rate) sdrc_cs0->rfr_ctrl, sdrc_cs0->actim_ctrla, sdrc_cs0->actim_ctrlb, sdrc_cs0->mr, 0, 0, 0, 0); + clk->rate = rate; return 0; } diff --git a/arch/arm/mach-omap2/pm_bus.c b/arch/arm/mach-omap2/pm_bus.c deleted file mode 100644 index 5acd2ab298b..00000000000 --- a/arch/arm/mach-omap2/pm_bus.c +++ /dev/null @@ -1,85 +0,0 @@ -/* - * Runtime PM support code for OMAP - * - * Author: Kevin Hilman, Deep Root Systems, LLC - * - * Copyright (C) 2010 Texas Instruments, Inc. - * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. - */ -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/io.h> -#include <linux/pm_runtime.h> -#include <linux/platform_device.h> -#include <linux/mutex.h> - -#include <plat/omap_device.h> -#include <plat/omap-pm.h> - -#ifdef CONFIG_PM_RUNTIME -static int omap_pm_runtime_suspend(struct device *dev) -{ - struct platform_device *pdev = to_platform_device(dev); - int r, ret = 0; - - dev_dbg(dev, "%s\n", __func__); - - ret = pm_generic_runtime_suspend(dev); - - if (!ret && dev->parent == &omap_device_parent) { - r = omap_device_idle(pdev); - WARN_ON(r); - } - - return ret; -}; - -static int omap_pm_runtime_resume(struct device *dev) -{ - struct platform_device *pdev = to_platform_device(dev); - int r; - - dev_dbg(dev, "%s\n", __func__); - - if (dev->parent == &omap_device_parent) { - r = omap_device_enable(pdev); - WARN_ON(r); - } - - return pm_generic_runtime_resume(dev); -}; -#else -#define omap_pm_runtime_suspend NULL -#define omap_pm_runtime_resume NULL -#endif /* CONFIG_PM_RUNTIME */ - -static int __init omap_pm_runtime_init(void) -{ - const struct dev_pm_ops *pm; - struct dev_pm_ops *omap_pm; - - pm = platform_bus_get_pm_ops(); - if (!pm) { - pr_err("%s: unable to get dev_pm_ops from platform_bus\n", - __func__); - return -ENODEV; - } - - omap_pm = kmemdup(pm, sizeof(struct dev_pm_ops), GFP_KERNEL); - if (!omap_pm) { - pr_err("%s: unable to alloc memory for new dev_pm_ops\n", - __func__); - return -ENOMEM; - } - - omap_pm->runtime_suspend = omap_pm_runtime_suspend; - omap_pm->runtime_resume = omap_pm_runtime_resume; - - platform_bus_set_pm_ops(omap_pm); - - return 0; -} -core_initcall(omap_pm_runtime_init); diff --git a/arch/arm/mach-pxa/balloon3.c b/arch/arm/mach-pxa/balloon3.c index bfbecec6d05..810a982a66f 100644 --- a/arch/arm/mach-pxa/balloon3.c +++ b/arch/arm/mach-pxa/balloon3.c @@ -15,7 +15,6 @@ #include <linux/init.h> #include <linux/platform_device.h> -#include <linux/sysdev.h> #include <linux/interrupt.h> #include <linux/sched.h> #include <linux/bitops.h> diff --git a/arch/arm/mach-pxa/clock-pxa2xx.c b/arch/arm/mach-pxa/clock-pxa2xx.c index 1ce09044849..1d5859d9a0e 100644 --- a/arch/arm/mach-pxa/clock-pxa2xx.c +++ b/arch/arm/mach-pxa/clock-pxa2xx.c @@ -9,7 +9,7 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <mach/pxa2xx-regs.h> @@ -33,32 +33,22 @@ const struct clkops clk_pxa2xx_cken_ops = { #ifdef CONFIG_PM static uint32_t saved_cken; -static int pxa2xx_clock_suspend(struct sys_device *d, pm_message_t state) +static int pxa2xx_clock_suspend(void) { saved_cken = CKEN; return 0; } -static int pxa2xx_clock_resume(struct sys_device *d) +static void pxa2xx_clock_resume(void) { CKEN = saved_cken; - return 0; } #else #define pxa2xx_clock_suspend NULL #define pxa2xx_clock_resume NULL #endif -struct sysdev_class pxa2xx_clock_sysclass = { - .name = "pxa2xx-clock", +struct syscore_ops pxa2xx_clock_syscore_ops = { .suspend = pxa2xx_clock_suspend, .resume = pxa2xx_clock_resume, }; - -static int __init pxa2xx_clock_init(void) -{ - if (cpu_is_pxa2xx()) - return sysdev_class_register(&pxa2xx_clock_sysclass); - return 0; -} -postcore_initcall(pxa2xx_clock_init); diff --git a/arch/arm/mach-pxa/clock-pxa3xx.c b/arch/arm/mach-pxa/clock-pxa3xx.c index 3f864cd0bd2..2a37a9a8f62 100644 --- a/arch/arm/mach-pxa/clock-pxa3xx.c +++ b/arch/arm/mach-pxa/clock-pxa3xx.c @@ -10,6 +10,7 @@ #include <linux/kernel.h> #include <linux/init.h> #include <linux/io.h> +#include <linux/syscore_ops.h> #include <mach/smemc.h> #include <mach/pxa3xx-regs.h> @@ -182,7 +183,7 @@ const struct clkops clk_pxa3xx_pout_ops = { static uint32_t cken[2]; static uint32_t accr; -static int pxa3xx_clock_suspend(struct sys_device *d, pm_message_t state) +static int pxa3xx_clock_suspend(void) { cken[0] = CKENA; cken[1] = CKENB; @@ -190,28 +191,18 @@ static int pxa3xx_clock_suspend(struct sys_device *d, pm_message_t state) return 0; } -static int pxa3xx_clock_resume(struct sys_device *d) +static void pxa3xx_clock_resume(void) { ACCR = accr; CKENA = cken[0]; CKENB = cken[1]; - return 0; } #else #define pxa3xx_clock_suspend NULL #define pxa3xx_clock_resume NULL #endif -struct sysdev_class pxa3xx_clock_sysclass = { - .name = "pxa3xx-clock", +struct syscore_ops pxa3xx_clock_syscore_ops = { .suspend = pxa3xx_clock_suspend, .resume = pxa3xx_clock_resume, }; - -static int __init pxa3xx_clock_init(void) -{ - if (cpu_is_pxa3xx() || cpu_is_pxa95x()) - return sysdev_class_register(&pxa3xx_clock_sysclass); - return 0; -} -postcore_initcall(pxa3xx_clock_init); diff --git a/arch/arm/mach-pxa/clock.h b/arch/arm/mach-pxa/clock.h index f9f349a21b5..1f2fb9c43f0 100644 --- a/arch/arm/mach-pxa/clock.h +++ b/arch/arm/mach-pxa/clock.h @@ -1,5 +1,5 @@ #include <linux/clkdev.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> struct clkops { void (*enable)(struct clk *); @@ -54,7 +54,7 @@ extern const struct clkops clk_pxa2xx_cken_ops; void clk_pxa2xx_cken_enable(struct clk *clk); void clk_pxa2xx_cken_disable(struct clk *clk); -extern struct sysdev_class pxa2xx_clock_sysclass; +extern struct syscore_ops pxa2xx_clock_syscore_ops; #if defined(CONFIG_PXA3xx) || defined(CONFIG_PXA95x) #define DEFINE_PXA3_CKEN(_name, _cken, _rate, _delay) \ @@ -74,5 +74,6 @@ extern const struct clkops clk_pxa3xx_smemc_ops; extern void clk_pxa3xx_cken_enable(struct clk *); extern void clk_pxa3xx_cken_disable(struct clk *); -extern struct sysdev_class pxa3xx_clock_sysclass; +extern struct syscore_ops pxa3xx_clock_syscore_ops; + #endif diff --git a/arch/arm/mach-pxa/cm-x270.c b/arch/arm/mach-pxa/cm-x270.c index b88d601a809..13518a70539 100644 --- a/arch/arm/mach-pxa/cm-x270.c +++ b/arch/arm/mach-pxa/cm-x270.c @@ -10,7 +10,6 @@ */ #include <linux/platform_device.h> -#include <linux/sysdev.h> #include <linux/irq.h> #include <linux/gpio.h> #include <linux/delay.h> diff --git a/arch/arm/mach-pxa/cm-x2xx.c b/arch/arm/mach-pxa/cm-x2xx.c index 8225e2e58c6..a1099678247 100644 --- a/arch/arm/mach-pxa/cm-x2xx.c +++ b/arch/arm/mach-pxa/cm-x2xx.c @@ -10,7 +10,7 @@ */ #include <linux/platform_device.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/irq.h> #include <linux/gpio.h> @@ -388,7 +388,7 @@ static inline void cmx2xx_init_display(void) {} #ifdef CONFIG_PM static unsigned long sleep_save_msc[10]; -static int cmx2xx_suspend(struct sys_device *dev, pm_message_t state) +static int cmx2xx_suspend(void) { cmx2xx_pci_suspend(); @@ -412,7 +412,7 @@ static int cmx2xx_suspend(struct sys_device *dev, pm_message_t state) return 0; } -static int cmx2xx_resume(struct sys_device *dev) +static void cmx2xx_resume(void) { cmx2xx_pci_resume(); @@ -420,27 +420,18 @@ static int cmx2xx_resume(struct sys_device *dev) __raw_writel(sleep_save_msc[0], MSC0); __raw_writel(sleep_save_msc[1], MSC1); __raw_writel(sleep_save_msc[2], MSC2); - - return 0; } -static struct sysdev_class cmx2xx_pm_sysclass = { - .name = "pm", +static struct syscore_ops cmx2xx_pm_syscore_ops = { .resume = cmx2xx_resume, .suspend = cmx2xx_suspend, }; -static struct sys_device cmx2xx_pm_device = { - .cls = &cmx2xx_pm_sysclass, -}; - static int __init cmx2xx_pm_init(void) { - int error; - error = sysdev_class_register(&cmx2xx_pm_sysclass); - if (error == 0) - error = sysdev_register(&cmx2xx_pm_device); - return error; + register_syscore_ops(&cmx2xx_pm_syscore_ops); + + return 0; } #else static int __init cmx2xx_pm_init(void) { return 0; } diff --git a/arch/arm/mach-pxa/colibri-evalboard.c b/arch/arm/mach-pxa/colibri-evalboard.c index 81c3c433e2d..d28e802e244 100644 --- a/arch/arm/mach-pxa/colibri-evalboard.c +++ b/arch/arm/mach-pxa/colibri-evalboard.c @@ -13,7 +13,6 @@ #include <linux/init.h> #include <linux/kernel.h> #include <linux/platform_device.h> -#include <linux/sysdev.h> #include <linux/interrupt.h> #include <linux/gpio.h> #include <asm/mach-types.h> diff --git a/arch/arm/mach-pxa/colibri-pxa270-income.c b/arch/arm/mach-pxa/colibri-pxa270-income.c index 44c1b77ece6..80538b8806e 100644 --- a/arch/arm/mach-pxa/colibri-pxa270-income.c +++ b/arch/arm/mach-pxa/colibri-pxa270-income.c @@ -22,7 +22,6 @@ #include <linux/platform_device.h> #include <linux/pwm_backlight.h> #include <linux/i2c/pxa-i2c.h> -#include <linux/sysdev.h> #include <asm/irq.h> #include <asm/mach-types.h> diff --git a/arch/arm/mach-pxa/colibri-pxa270.c b/arch/arm/mach-pxa/colibri-pxa270.c index 6fc5d328ba7..7545a48ed88 100644 --- a/arch/arm/mach-pxa/colibri-pxa270.c +++ b/arch/arm/mach-pxa/colibri-pxa270.c @@ -17,7 +17,6 @@ #include <linux/mtd/partitions.h> #include <linux/mtd/physmap.h> #include <linux/platform_device.h> -#include <linux/sysdev.h> #include <linux/ucb1400.h> #include <asm/mach/arch.h> diff --git a/arch/arm/mach-pxa/generic.h b/arch/arm/mach-pxa/generic.h index a079d8baa45..e6c9344a95a 100644 --- a/arch/arm/mach-pxa/generic.h +++ b/arch/arm/mach-pxa/generic.h @@ -61,10 +61,10 @@ extern unsigned pxa3xx_get_clk_frequency_khz(int); #define pxa3xx_get_clk_frequency_khz(x) (0) #endif -extern struct sysdev_class pxa_irq_sysclass; -extern struct sysdev_class pxa_gpio_sysclass; -extern struct sysdev_class pxa2xx_mfp_sysclass; -extern struct sysdev_class pxa3xx_mfp_sysclass; +extern struct syscore_ops pxa_irq_syscore_ops; +extern struct syscore_ops pxa_gpio_syscore_ops; +extern struct syscore_ops pxa2xx_mfp_syscore_ops; +extern struct syscore_ops pxa3xx_mfp_syscore_ops; void __init pxa_set_ffuart_info(void *info); void __init pxa_set_btuart_info(void *info); diff --git a/arch/arm/mach-pxa/irq.c b/arch/arm/mach-pxa/irq.c index 6251e3f5c62..32ed551bf9c 100644 --- a/arch/arm/mach-pxa/irq.c +++ b/arch/arm/mach-pxa/irq.c @@ -15,7 +15,7 @@ #include <linux/init.h> #include <linux/module.h> #include <linux/interrupt.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/io.h> #include <linux/irq.h> @@ -183,7 +183,7 @@ void __init pxa_init_irq(int irq_nr, set_wake_t fn) static unsigned long saved_icmr[MAX_INTERNAL_IRQS/32]; static unsigned long saved_ipr[MAX_INTERNAL_IRQS]; -static int pxa_irq_suspend(struct sys_device *dev, pm_message_t state) +static int pxa_irq_suspend(void) { int i; @@ -202,7 +202,7 @@ static int pxa_irq_suspend(struct sys_device *dev, pm_message_t state) return 0; } -static int pxa_irq_resume(struct sys_device *dev) +static void pxa_irq_resume(void) { int i; @@ -218,22 +218,13 @@ static int pxa_irq_resume(struct sys_device *dev) __raw_writel(saved_ipr[i], IRQ_BASE + IPR(i)); __raw_writel(1, IRQ_BASE + ICCR); - return 0; } #else #define pxa_irq_suspend NULL #define pxa_irq_resume NULL #endif -struct sysdev_class pxa_irq_sysclass = { - .name = "irq", +struct syscore_ops pxa_irq_syscore_ops = { .suspend = pxa_irq_suspend, .resume = pxa_irq_resume, }; - -static int __init pxa_irq_init(void) -{ - return sysdev_class_register(&pxa_irq_sysclass); -} - -core_initcall(pxa_irq_init); diff --git a/arch/arm/mach-pxa/lpd270.c b/arch/arm/mach-pxa/lpd270.c index f5de541725b..6cf8180bf5b 100644 --- a/arch/arm/mach-pxa/lpd270.c +++ b/arch/arm/mach-pxa/lpd270.c @@ -15,7 +15,7 @@ #include <linux/init.h> #include <linux/platform_device.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/interrupt.h> #include <linux/sched.h> #include <linux/bitops.h> @@ -159,30 +159,22 @@ static void __init lpd270_init_irq(void) #ifdef CONFIG_PM -static int lpd270_irq_resume(struct sys_device *dev) +static void lpd270_irq_resume(void) { __raw_writew(lpd270_irq_enabled, LPD270_INT_MASK); - return 0; } -static struct sysdev_class lpd270_irq_sysclass = { - .name = "cpld_irq", +static struct syscore_ops lpd270_irq_syscore_ops = { .resume = lpd270_irq_resume, }; -static struct sys_device lpd270_irq_device = { - .cls = &lpd270_irq_sysclass, -}; - static int __init lpd270_irq_device_init(void) { - int ret = -ENODEV; if (machine_is_logicpd_pxa270()) { - ret = sysdev_class_register(&lpd270_irq_sysclass); - if (ret == 0) - ret = sysdev_register(&lpd270_irq_device); + register_syscore_ops(&lpd270_irq_syscore_ops); + return 0; } - return ret; + return -ENODEV; } device_initcall(lpd270_irq_device_init); diff --git a/arch/arm/mach-pxa/lubbock.c b/arch/arm/mach-pxa/lubbock.c index 3ede978c83d..e10ddb82714 100644 --- a/arch/arm/mach-pxa/lubbock.c +++ b/arch/arm/mach-pxa/lubbock.c @@ -15,7 +15,7 @@ #include <linux/kernel.h> #include <linux/init.h> #include <linux/platform_device.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/major.h> #include <linux/fb.h> #include <linux/interrupt.h> @@ -176,31 +176,22 @@ static void __init lubbock_init_irq(void) #ifdef CONFIG_PM -static int lubbock_irq_resume(struct sys_device *dev) +static void lubbock_irq_resume(void) { LUB_IRQ_MASK_EN = lubbock_irq_enabled; - return 0; } -static struct sysdev_class lubbock_irq_sysclass = { - .name = "cpld_irq", +static struct syscore_ops lubbock_irq_syscore_ops = { .resume = lubbock_irq_resume, }; -static struct sys_device lubbock_irq_device = { - .cls = &lubbock_irq_sysclass, -}; - static int __init lubbock_irq_device_init(void) { - int ret = -ENODEV; - if (machine_is_lubbock()) { - ret = sysdev_class_register(&lubbock_irq_sysclass); - if (ret == 0) - ret = sysdev_register(&lubbock_irq_device); + register_syscore_ops(&lubbock_irq_syscore_ops); + return 0; } - return ret; + return -ENODEV; } device_initcall(lubbock_irq_device_init); diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c index 95163baca29..3479e2b3b51 100644 --- a/arch/arm/mach-pxa/mainstone.c +++ b/arch/arm/mach-pxa/mainstone.c @@ -15,7 +15,7 @@ #include <linux/init.h> #include <linux/platform_device.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/interrupt.h> #include <linux/sched.h> #include <linux/bitops.h> @@ -185,31 +185,21 @@ static void __init mainstone_init_irq(void) #ifdef CONFIG_PM -static int mainstone_irq_resume(struct sys_device *dev) +static void mainstone_irq_resume(void) { MST_INTMSKENA = mainstone_irq_enabled; - return 0; } -static struct sysdev_class mainstone_irq_sysclass = { - .name = "cpld_irq", +static struct syscore_ops mainstone_irq_syscore_ops = { .resume = mainstone_irq_resume, }; -static struct sys_device mainstone_irq_device = { - .cls = &mainstone_irq_sysclass, -}; - static int __init mainstone_irq_device_init(void) { - int ret = -ENODEV; + if (machine_is_mainstone()) + register_syscore_ops(&mainstone_irq_syscore_ops); - if (machine_is_mainstone()) { - ret = sysdev_class_register(&mainstone_irq_sysclass); - if (ret == 0) - ret = sysdev_register(&mainstone_irq_device); - } - return ret; + return 0; } device_initcall(mainstone_irq_device_init); diff --git a/arch/arm/mach-pxa/mfp-pxa2xx.c b/arch/arm/mach-pxa/mfp-pxa2xx.c index 1d1419b7345..87ae3129f4f 100644 --- a/arch/arm/mach-pxa/mfp-pxa2xx.c +++ b/arch/arm/mach-pxa/mfp-pxa2xx.c @@ -16,7 +16,7 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <mach/gpio.h> #include <mach/pxa2xx-regs.h> @@ -338,7 +338,7 @@ static unsigned long saved_gafr[2][4]; static unsigned long saved_gpdr[4]; static unsigned long saved_pgsr[4]; -static int pxa2xx_mfp_suspend(struct sys_device *d, pm_message_t state) +static int pxa2xx_mfp_suspend(void) { int i; @@ -365,7 +365,7 @@ static int pxa2xx_mfp_suspend(struct sys_device *d, pm_message_t state) return 0; } -static int pxa2xx_mfp_resume(struct sys_device *d) +static void pxa2xx_mfp_resume(void) { int i; @@ -376,15 +376,13 @@ static int pxa2xx_mfp_resume(struct sys_device *d) PGSR(i) = saved_pgsr[i]; } PSSR = PSSR_RDH | PSSR_PH; - return 0; } #else #define pxa2xx_mfp_suspend NULL #define pxa2xx_mfp_resume NULL #endif -struct sysdev_class pxa2xx_mfp_sysclass = { - .name = "mfp", +struct syscore_ops pxa2xx_mfp_syscore_ops = { .suspend = pxa2xx_mfp_suspend, .resume = pxa2xx_mfp_resume, }; @@ -409,6 +407,6 @@ static int __init pxa2xx_mfp_init(void) for (i = 0; i <= gpio_to_bank(pxa_last_gpio); i++) gpdr_lpm[i] = GPDR(i * 32); - return sysdev_class_register(&pxa2xx_mfp_sysclass); + return 0; } postcore_initcall(pxa2xx_mfp_init); diff --git a/arch/arm/mach-pxa/mfp-pxa3xx.c b/arch/arm/mach-pxa/mfp-pxa3xx.c index 7a270eecd48..89863a01ecd 100644 --- a/arch/arm/mach-pxa/mfp-pxa3xx.c +++ b/arch/arm/mach-pxa/mfp-pxa3xx.c @@ -17,7 +17,7 @@ #include <linux/kernel.h> #include <linux/init.h> #include <linux/io.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <mach/hardware.h> #include <mach/mfp-pxa3xx.h> @@ -31,13 +31,13 @@ * a pull-down mode if they're an active low chip select, and we're * just entering standby. */ -static int pxa3xx_mfp_suspend(struct sys_device *d, pm_message_t state) +static int pxa3xx_mfp_suspend(void) { mfp_config_lpm(); return 0; } -static int pxa3xx_mfp_resume(struct sys_device *d) +static void pxa3xx_mfp_resume(void) { mfp_config_run(); @@ -47,24 +47,13 @@ static int pxa3xx_mfp_resume(struct sys_device *d) * preserve them here in case they will be referenced later */ ASCR &= ~(ASCR_RDH | ASCR_D1S | ASCR_D2S | ASCR_D3S); - return 0; } #else #define pxa3xx_mfp_suspend NULL #define pxa3xx_mfp_resume NULL #endif -struct sysdev_class pxa3xx_mfp_sysclass = { - .name = "mfp", +struct syscore_ops pxa3xx_mfp_syscore_ops = { .suspend = pxa3xx_mfp_suspend, - .resume = pxa3xx_mfp_resume, + .resume = pxa3xx_mfp_resume, }; - -static int __init mfp_init_devicefs(void) -{ - if (cpu_is_pxa3xx()) - return sysdev_class_register(&pxa3xx_mfp_sysclass); - - return 0; -} -postcore_initcall(mfp_init_devicefs); diff --git a/arch/arm/mach-pxa/mioa701.c b/arch/arm/mach-pxa/mioa701.c index 23925db8ff7..e3470137c93 100644 --- a/arch/arm/mach-pxa/mioa701.c +++ b/arch/arm/mach-pxa/mioa701.c @@ -22,7 +22,7 @@ #include <linux/kernel.h> #include <linux/init.h> #include <linux/platform_device.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/input.h> #include <linux/delay.h> #include <linux/gpio_keys.h> @@ -488,7 +488,7 @@ static void install_bootstrap(void) } -static int mioa701_sys_suspend(struct sys_device *sysdev, pm_message_t state) +static int mioa701_sys_suspend(void) { int i = 0, is_bt_on; u32 *mem_resume_vector = phys_to_virt(RESUME_VECTOR_ADDR); @@ -514,7 +514,7 @@ static int mioa701_sys_suspend(struct sys_device *sysdev, pm_message_t state) return 0; } -static int mioa701_sys_resume(struct sys_device *sysdev) +static void mioa701_sys_resume(void) { int i = 0; u32 *mem_resume_vector = phys_to_virt(RESUME_VECTOR_ADDR); @@ -527,43 +527,18 @@ static int mioa701_sys_resume(struct sys_device *sysdev) *mem_resume_enabler = save_buffer[i++]; *mem_resume_bt = save_buffer[i++]; *mem_resume_unknown = save_buffer[i++]; - - return 0; } -static struct sysdev_class mioa701_sysclass = { - .name = "mioa701", -}; - -static struct sys_device sysdev_bootstrap = { - .cls = &mioa701_sysclass, -}; - -static struct sysdev_driver driver_bootstrap = { - .suspend = &mioa701_sys_suspend, - .resume = &mioa701_sys_resume, +static struct syscore_ops mioa701_syscore_ops = { + .suspend = mioa701_sys_suspend, + .resume = mioa701_sys_resume, }; static int __init bootstrap_init(void) { - int rc; int save_size = mioa701_bootstrap_lg + (sizeof(u32) * 3); - rc = sysdev_class_register(&mioa701_sysclass); - if (rc) { - printk(KERN_ERR "Failed registering mioa701 sys class\n"); - return -ENODEV; - } - rc = sysdev_register(&sysdev_bootstrap); - if (rc) { - printk(KERN_ERR "Failed registering mioa701 sys device\n"); - return -ENODEV; - } - rc = sysdev_driver_register(&mioa701_sysclass, &driver_bootstrap); - if (rc) { - printk(KERN_ERR "Failed registering PMU sys driver\n"); - return -ENODEV; - } + register_syscore_ops(&mioa701_syscore_ops); save_buffer = kmalloc(save_size, GFP_KERNEL); if (!save_buffer) @@ -576,9 +551,7 @@ static int __init bootstrap_init(void) static void bootstrap_exit(void) { kfree(save_buffer); - sysdev_driver_unregister(&mioa701_sysclass, &driver_bootstrap); - sysdev_unregister(&sysdev_bootstrap); - sysdev_class_unregister(&mioa701_sysclass); + unregister_syscore_ops(&mioa701_syscore_ops); printk(KERN_CRIT "Unregistering mioa701 suspend will hang next" "resume !!!\n"); diff --git a/arch/arm/mach-pxa/palmld.c b/arch/arm/mach-pxa/palmld.c index a6f898cbfac..4061ecddee7 100644 --- a/arch/arm/mach-pxa/palmld.c +++ b/arch/arm/mach-pxa/palmld.c @@ -24,7 +24,6 @@ #include <linux/gpio.h> #include <linux/wm97xx.h> #include <linux/power_supply.h> -#include <linux/sysdev.h> #include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> #include <linux/mtd/physmap.h> diff --git a/arch/arm/mach-pxa/palmtreo.c b/arch/arm/mach-pxa/palmtreo.c index 8aadad55fbe..20d1b18b173 100644 --- a/arch/arm/mach-pxa/palmtreo.c +++ b/arch/arm/mach-pxa/palmtreo.c @@ -25,7 +25,6 @@ #include <linux/pwm_backlight.h> #include <linux/gpio.h> #include <linux/power_supply.h> -#include <linux/sysdev.h> #include <linux/w1-gpio.h> #include <asm/mach-types.h> diff --git a/arch/arm/mach-pxa/palmz72.c b/arch/arm/mach-pxa/palmz72.c index 3b8a4f37dbb..65f24f0b77e 100644 --- a/arch/arm/mach-pxa/palmz72.c +++ b/arch/arm/mach-pxa/palmz72.c @@ -19,7 +19,7 @@ */ #include <linux/platform_device.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/delay.h> #include <linux/irq.h> #include <linux/gpio_keys.h> @@ -233,9 +233,9 @@ static struct palmz72_resume_info palmz72_resume_info = { static unsigned long store_ptr; -/* sys_device for Palm Zire 72 PM */ +/* syscore_ops for Palm Zire 72 PM */ -static int palmz72_pm_suspend(struct sys_device *dev, pm_message_t msg) +static int palmz72_pm_suspend(void) { /* setup the resume_info struct for the original bootloader */ palmz72_resume_info.resume_addr = (u32) cpu_resume; @@ -249,31 +249,23 @@ static int palmz72_pm_suspend(struct sys_device *dev, pm_message_t msg) return 0; } -static int palmz72_pm_resume(struct sys_device *dev) +static void palmz72_pm_resume(void) { *PALMZ72_SAVE_DWORD = store_ptr; - return 0; } -static struct sysdev_class palmz72_pm_sysclass = { - .name = "palmz72_pm", +static struct syscore_ops palmz72_pm_syscore_ops = { .suspend = palmz72_pm_suspend, .resume = palmz72_pm_resume, }; -static struct sys_device palmz72_pm_device = { - .cls = &palmz72_pm_sysclass, -}; - static int __init palmz72_pm_init(void) { - int ret = -ENODEV; if (machine_is_palmz72()) { - ret = sysdev_class_register(&palmz72_pm_sysclass); - if (ret == 0) - ret = sysdev_register(&palmz72_pm_device); + register_syscore_ops(&palmz72_pm_syscore_ops); + return 0; } - return ret; + return -ENODEV; } device_initcall(palmz72_pm_init); diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c index a4af8c52d7e..fed363cec9c 100644 --- a/arch/arm/mach-pxa/pxa25x.c +++ b/arch/arm/mach-pxa/pxa25x.c @@ -21,7 +21,7 @@ #include <linux/init.h> #include <linux/platform_device.h> #include <linux/suspend.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/irq.h> #include <asm/mach/map.h> @@ -350,21 +350,9 @@ static struct platform_device *pxa25x_devices[] __initdata = { &pxa_device_asoc_platform, }; -static struct sys_device pxa25x_sysdev[] = { - { - .cls = &pxa_irq_sysclass, - }, { - .cls = &pxa2xx_mfp_sysclass, - }, { - .cls = &pxa_gpio_sysclass, - }, { - .cls = &pxa2xx_clock_sysclass, - } -}; - static int __init pxa25x_init(void) { - int i, ret = 0; + int ret = 0; if (cpu_is_pxa25x()) { @@ -377,11 +365,10 @@ static int __init pxa25x_init(void) pxa25x_init_pm(); - for (i = 0; i < ARRAY_SIZE(pxa25x_sysdev); i++) { - ret = sysdev_register(&pxa25x_sysdev[i]); - if (ret) - pr_err("failed to register sysdev[%d]\n", i); - } + register_syscore_ops(&pxa_irq_syscore_ops); + register_syscore_ops(&pxa2xx_mfp_syscore_ops); + register_syscore_ops(&pxa_gpio_syscore_ops); + register_syscore_ops(&pxa2xx_clock_syscore_ops); ret = platform_add_devices(pxa25x_devices, ARRAY_SIZE(pxa25x_devices)); diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c index 909756eaf4b..2fecbec58d8 100644 --- a/arch/arm/mach-pxa/pxa27x.c +++ b/arch/arm/mach-pxa/pxa27x.c @@ -16,7 +16,7 @@ #include <linux/init.h> #include <linux/suspend.h> #include <linux/platform_device.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/io.h> #include <linux/irq.h> #include <linux/i2c/pxa-i2c.h> @@ -428,21 +428,9 @@ static struct platform_device *devices[] __initdata = { &pxa27x_device_pwm1, }; -static struct sys_device pxa27x_sysdev[] = { - { - .cls = &pxa_irq_sysclass, - }, { - .cls = &pxa2xx_mfp_sysclass, - }, { - .cls = &pxa_gpio_sysclass, - }, { - .cls = &pxa2xx_clock_sysclass, - } -}; - static int __init pxa27x_init(void) { - int i, ret = 0; + int ret = 0; if (cpu_is_pxa27x()) { @@ -455,11 +443,10 @@ static int __init pxa27x_init(void) pxa27x_init_pm(); - for (i = 0; i < ARRAY_SIZE(pxa27x_sysdev); i++) { - ret = sysdev_register(&pxa27x_sysdev[i]); - if (ret) - pr_err("failed to register sysdev[%d]\n", i); - } + register_syscore_ops(&pxa_irq_syscore_ops); + register_syscore_ops(&pxa2xx_mfp_syscore_ops); + register_syscore_ops(&pxa_gpio_syscore_ops); + register_syscore_ops(&pxa2xx_clock_syscore_ops); ret = platform_add_devices(devices, ARRAY_SIZE(devices)); } diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c index 8dd10739115..8521d7d6f1d 100644 --- a/arch/arm/mach-pxa/pxa3xx.c +++ b/arch/arm/mach-pxa/pxa3xx.c @@ -20,7 +20,7 @@ #include <linux/platform_device.h> #include <linux/irq.h> #include <linux/io.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/i2c/pxa-i2c.h> #include <asm/mach/map.h> @@ -427,21 +427,9 @@ static struct platform_device *devices[] __initdata = { &pxa27x_device_pwm1, }; -static struct sys_device pxa3xx_sysdev[] = { - { - .cls = &pxa_irq_sysclass, - }, { - .cls = &pxa3xx_mfp_sysclass, - }, { - .cls = &pxa_gpio_sysclass, - }, { - .cls = &pxa3xx_clock_sysclass, - } -}; - static int __init pxa3xx_init(void) { - int i, ret = 0; + int ret = 0; if (cpu_is_pxa3xx()) { @@ -462,11 +450,10 @@ static int __init pxa3xx_init(void) pxa3xx_init_pm(); - for (i = 0; i < ARRAY_SIZE(pxa3xx_sysdev); i++) { - ret = sysdev_register(&pxa3xx_sysdev[i]); - if (ret) - pr_err("failed to register sysdev[%d]\n", i); - } + register_syscore_ops(&pxa_irq_syscore_ops); + register_syscore_ops(&pxa3xx_mfp_syscore_ops); + register_syscore_ops(&pxa_gpio_syscore_ops); + register_syscore_ops(&pxa3xx_clock_syscore_ops); ret = platform_add_devices(devices, ARRAY_SIZE(devices)); } diff --git a/arch/arm/mach-pxa/pxa95x.c b/arch/arm/mach-pxa/pxa95x.c index 23b229bd06e..ecc82a330fa 100644 --- a/arch/arm/mach-pxa/pxa95x.c +++ b/arch/arm/mach-pxa/pxa95x.c @@ -18,7 +18,7 @@ #include <linux/i2c/pxa-i2c.h> #include <linux/irq.h> #include <linux/io.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <mach/hardware.h> #include <mach/gpio.h> @@ -260,16 +260,6 @@ static struct platform_device *devices[] __initdata = { &pxa27x_device_pwm1, }; -static struct sys_device pxa95x_sysdev[] = { - { - .cls = &pxa_irq_sysclass, - }, { - .cls = &pxa_gpio_sysclass, - }, { - .cls = &pxa3xx_clock_sysclass, - } -}; - static int __init pxa95x_init(void) { int ret = 0, i; @@ -293,11 +283,9 @@ static int __init pxa95x_init(void) if ((ret = pxa_init_dma(IRQ_DMA, 32))) return ret; - for (i = 0; i < ARRAY_SIZE(pxa95x_sysdev); i++) { - ret = sysdev_register(&pxa95x_sysdev[i]); - if (ret) - pr_err("failed to register sysdev[%d]\n", i); - } + register_syscore_ops(&pxa_irq_syscore_ops); + register_syscore_ops(&pxa_gpio_syscore_ops); + register_syscore_ops(&pxa3xx_clock_syscore_ops); ret = platform_add_devices(devices, ARRAY_SIZE(devices)); } diff --git a/arch/arm/mach-pxa/raumfeld.c b/arch/arm/mach-pxa/raumfeld.c index cd1861351f7..d130f77b6d1 100644 --- a/arch/arm/mach-pxa/raumfeld.c +++ b/arch/arm/mach-pxa/raumfeld.c @@ -18,7 +18,6 @@ #include <linux/init.h> #include <linux/kernel.h> -#include <linux/sysdev.h> #include <linux/platform_device.h> #include <linux/interrupt.h> #include <linux/gpio.h> diff --git a/arch/arm/mach-pxa/smemc.c b/arch/arm/mach-pxa/smemc.c index 232b7316ec0..79923058d10 100644 --- a/arch/arm/mach-pxa/smemc.c +++ b/arch/arm/mach-pxa/smemc.c @@ -6,7 +6,7 @@ #include <linux/kernel.h> #include <linux/init.h> #include <linux/io.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <mach/hardware.h> #include <mach/smemc.h> @@ -16,7 +16,7 @@ static unsigned long msc[2]; static unsigned long sxcnfg, memclkcfg; static unsigned long csadrcfg[4]; -static int pxa3xx_smemc_suspend(struct sys_device *dev, pm_message_t state) +static int pxa3xx_smemc_suspend(void) { msc[0] = __raw_readl(MSC0); msc[1] = __raw_readl(MSC1); @@ -30,7 +30,7 @@ static int pxa3xx_smemc_suspend(struct sys_device *dev, pm_message_t state) return 0; } -static int pxa3xx_smemc_resume(struct sys_device *dev) +static void pxa3xx_smemc_resume(void) { __raw_writel(msc[0], MSC0); __raw_writel(msc[1], MSC1); @@ -40,34 +40,19 @@ static int pxa3xx_smemc_resume(struct sys_device *dev) __raw_writel(csadrcfg[1], CSADRCFG1); __raw_writel(csadrcfg[2], CSADRCFG2); __raw_writel(csadrcfg[3], CSADRCFG3); - - return 0; } -static struct sysdev_class smemc_sysclass = { - .name = "smemc", +static struct syscore_ops smemc_syscore_ops = { .suspend = pxa3xx_smemc_suspend, .resume = pxa3xx_smemc_resume, }; -static struct sys_device smemc_sysdev = { - .id = 0, - .cls = &smemc_sysclass, -}; - static int __init smemc_init(void) { - int ret = 0; + if (cpu_is_pxa3xx()) + register_syscore_ops(&smemc_syscore_ops); - if (cpu_is_pxa3xx()) { - ret = sysdev_class_register(&smemc_sysclass); - if (ret) - return ret; - - ret = sysdev_register(&smemc_sysdev); - } - - return ret; + return 0; } subsys_initcall(smemc_init); #endif diff --git a/arch/arm/mach-pxa/trizeps4.c b/arch/arm/mach-pxa/trizeps4.c index b9cfbebdfe9..687417a9369 100644 --- a/arch/arm/mach-pxa/trizeps4.c +++ b/arch/arm/mach-pxa/trizeps4.c @@ -15,7 +15,6 @@ #include <linux/init.h> #include <linux/kernel.h> #include <linux/platform_device.h> -#include <linux/sysdev.h> #include <linux/interrupt.h> #include <linux/sched.h> #include <linux/bitops.h> diff --git a/arch/arm/mach-pxa/viper.c b/arch/arm/mach-pxa/viper.c index b523f119e0f..903218eab56 100644 --- a/arch/arm/mach-pxa/viper.c +++ b/arch/arm/mach-pxa/viper.c @@ -44,6 +44,7 @@ #include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> #include <linux/mtd/physmap.h> +#include <linux/syscore_ops.h> #include <mach/pxa25x.h> #include <mach/audio.h> @@ -130,20 +131,19 @@ static u8 viper_hw_version(void) return v1; } -/* CPU sysdev */ -static int viper_cpu_suspend(struct sys_device *sysdev, pm_message_t state) +/* CPU system core operations. */ +static int viper_cpu_suspend(void) { viper_icr_set_bit(VIPER_ICR_R_DIS); return 0; } -static int viper_cpu_resume(struct sys_device *sysdev) +static void viper_cpu_resume(void) { viper_icr_clear_bit(VIPER_ICR_R_DIS); - return 0; } -static struct sysdev_driver viper_cpu_sysdev_driver = { +static struct syscore_ops viper_cpu_syscore_ops = { .suspend = viper_cpu_suspend, .resume = viper_cpu_resume, }; @@ -945,7 +945,7 @@ static void __init viper_init(void) viper_init_vcore_gpios(); viper_init_cpufreq(); - sysdev_driver_register(&cpu_sysdev_class, &viper_cpu_sysdev_driver); + register_syscore_ops(&viper_cpu_syscore_ops); if (version) { pr_info("viper: hardware v%di%d detected. " diff --git a/arch/arm/mach-pxa/vpac270.c b/arch/arm/mach-pxa/vpac270.c index f71d377c864..67bd41488bf 100644 --- a/arch/arm/mach-pxa/vpac270.c +++ b/arch/arm/mach-pxa/vpac270.c @@ -16,7 +16,6 @@ #include <linux/gpio_keys.h> #include <linux/input.h> #include <linux/gpio.h> -#include <linux/sysdev.h> #include <linux/usb/gpio_vbus.h> #include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> diff --git a/arch/arm/mach-realview/include/mach/barriers.h b/arch/arm/mach-realview/include/mach/barriers.h index 0c5d749d7b5..9a732195aa1 100644 --- a/arch/arm/mach-realview/include/mach/barriers.h +++ b/arch/arm/mach-realview/include/mach/barriers.h @@ -4,5 +4,5 @@ * operation to deadlock the system. */ #define mb() dsb() -#define rmb() dmb() +#define rmb() dsb() #define wmb() mb() diff --git a/arch/arm/mach-s3c2410/irq.c b/arch/arm/mach-s3c2410/irq.c index 5e2f3533205..2854129f8cc 100644 --- a/arch/arm/mach-s3c2410/irq.c +++ b/arch/arm/mach-s3c2410/irq.c @@ -23,38 +23,12 @@ #include <linux/module.h> #include <linux/interrupt.h> #include <linux/ioport.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <plat/cpu.h> #include <plat/pm.h> -static int s3c2410_irq_add(struct sys_device *sysdev) -{ - return 0; -} - -static struct sysdev_driver s3c2410_irq_driver = { - .add = s3c2410_irq_add, +struct syscore_ops s3c24xx_irq_syscore_ops = { .suspend = s3c24xx_irq_suspend, .resume = s3c24xx_irq_resume, }; - -static int __init s3c2410_irq_init(void) -{ - return sysdev_driver_register(&s3c2410_sysclass, &s3c2410_irq_driver); -} - -arch_initcall(s3c2410_irq_init); - -static struct sysdev_driver s3c2410a_irq_driver = { - .add = s3c2410_irq_add, - .suspend = s3c24xx_irq_suspend, - .resume = s3c24xx_irq_resume, -}; - -static int __init s3c2410a_irq_init(void) -{ - return sysdev_driver_register(&s3c2410a_sysclass, &s3c2410a_irq_driver); -} - -arch_initcall(s3c2410a_irq_init); diff --git a/arch/arm/mach-s3c2410/mach-bast.c b/arch/arm/mach-s3c2410/mach-bast.c index 2970ea9f7c2..1e2d536adda 100644 --- a/arch/arm/mach-s3c2410/mach-bast.c +++ b/arch/arm/mach-s3c2410/mach-bast.c @@ -17,7 +17,7 @@ #include <linux/timer.h> #include <linux/init.h> #include <linux/gpio.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/serial_core.h> #include <linux/platform_device.h> #include <linux/dm9000.h> @@ -214,17 +214,16 @@ static struct s3c2410_uartcfg bast_uartcfgs[] __initdata = { /* NAND Flash on BAST board */ #ifdef CONFIG_PM -static int bast_pm_suspend(struct sys_device *sd, pm_message_t state) +static int bast_pm_suspend(void) { /* ensure that an nRESET is not generated on resume. */ gpio_direction_output(S3C2410_GPA(21), 1); return 0; } -static int bast_pm_resume(struct sys_device *sd) +static void bast_pm_resume(void) { s3c_gpio_cfgpin(S3C2410_GPA(21), S3C2410_GPA21_nRSTOUT); - return 0; } #else @@ -232,16 +231,11 @@ static int bast_pm_resume(struct sys_device *sd) #define bast_pm_resume NULL #endif -static struct sysdev_class bast_pm_sysclass = { - .name = "mach-bast", +static struct syscore_ops bast_pm_syscore_ops = { .suspend = bast_pm_suspend, .resume = bast_pm_resume, }; -static struct sys_device bast_pm_sysdev = { - .cls = &bast_pm_sysclass, -}; - static int smartmedia_map[] = { 0 }; static int chip0_map[] = { 1 }; static int chip1_map[] = { 2 }; @@ -642,8 +636,7 @@ static void __init bast_map_io(void) static void __init bast_init(void) { - sysdev_class_register(&bast_pm_sysclass); - sysdev_register(&bast_pm_sysdev); + register_syscore_ops(&bast_pm_syscore_ops); s3c_i2c0_set_platdata(&bast_i2c_info); s3c_nand_set_platdata(&bast_nand_info); diff --git a/arch/arm/mach-s3c2410/pm.c b/arch/arm/mach-s3c2410/pm.c index 725636fc4dc..4728f9aa7df 100644 --- a/arch/arm/mach-s3c2410/pm.c +++ b/arch/arm/mach-s3c2410/pm.c @@ -25,6 +25,7 @@ #include <linux/errno.h> #include <linux/time.h> #include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/gpio.h> #include <linux/io.h> @@ -92,7 +93,7 @@ static void s3c2410_pm_prepare(void) } } -static int s3c2410_pm_resume(struct sys_device *dev) +static void s3c2410_pm_resume(void) { unsigned long tmp; @@ -104,10 +105,12 @@ static int s3c2410_pm_resume(struct sys_device *dev) if ( machine_is_aml_m5900() ) s3c2410_gpio_setpin(S3C2410_GPF(2), 0); - - return 0; } +struct syscore_ops s3c2410_pm_syscore_ops = { + .resume = s3c2410_pm_resume, +}; + static int s3c2410_pm_add(struct sys_device *dev) { pm_cpu_prep = s3c2410_pm_prepare; @@ -119,7 +122,6 @@ static int s3c2410_pm_add(struct sys_device *dev) #if defined(CONFIG_CPU_S3C2410) static struct sysdev_driver s3c2410_pm_driver = { .add = s3c2410_pm_add, - .resume = s3c2410_pm_resume, }; /* register ourselves */ @@ -133,7 +135,6 @@ arch_initcall(s3c2410_pm_drvinit); static struct sysdev_driver s3c2410a_pm_driver = { .add = s3c2410_pm_add, - .resume = s3c2410_pm_resume, }; static int __init s3c2410a_pm_drvinit(void) @@ -147,7 +148,6 @@ arch_initcall(s3c2410a_pm_drvinit); #if defined(CONFIG_CPU_S3C2440) static struct sysdev_driver s3c2440_pm_driver = { .add = s3c2410_pm_add, - .resume = s3c2410_pm_resume, }; static int __init s3c2440_pm_drvinit(void) @@ -161,7 +161,6 @@ arch_initcall(s3c2440_pm_drvinit); #if defined(CONFIG_CPU_S3C2442) static struct sysdev_driver s3c2442_pm_driver = { .add = s3c2410_pm_add, - .resume = s3c2410_pm_resume, }; static int __init s3c2442_pm_drvinit(void) diff --git a/arch/arm/mach-s3c2410/s3c2410.c b/arch/arm/mach-s3c2410/s3c2410.c index adc90a3c589..f1d3bd8f6f1 100644 --- a/arch/arm/mach-s3c2410/s3c2410.c +++ b/arch/arm/mach-s3c2410/s3c2410.c @@ -19,6 +19,7 @@ #include <linux/gpio.h> #include <linux/clk.h> #include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/serial_core.h> #include <linux/platform_device.h> #include <linux/io.h> @@ -40,6 +41,7 @@ #include <plat/devs.h> #include <plat/clock.h> #include <plat/pll.h> +#include <plat/pm.h> #include <plat/gpio-core.h> #include <plat/gpio-cfg.h> @@ -168,6 +170,9 @@ int __init s3c2410_init(void) { printk("S3C2410: Initialising architecture\n"); + register_syscore_ops(&s3c2410_pm_syscore_ops); + register_syscore_ops(&s3c24xx_irq_syscore_ops); + return sysdev_register(&s3c2410_sysdev); } diff --git a/arch/arm/mach-s3c2412/irq.c b/arch/arm/mach-s3c2412/irq.c index f3355d2ec63..1a1aa220972 100644 --- a/arch/arm/mach-s3c2412/irq.c +++ b/arch/arm/mach-s3c2412/irq.c @@ -202,8 +202,6 @@ static int s3c2412_irq_add(struct sys_device *sysdev) static struct sysdev_driver s3c2412_irq_driver = { .add = s3c2412_irq_add, - .suspend = s3c24xx_irq_suspend, - .resume = s3c24xx_irq_resume, }; static int s3c2412_irq_init(void) diff --git a/arch/arm/mach-s3c2412/mach-jive.c b/arch/arm/mach-s3c2412/mach-jive.c index 923e01bdf01..85dcaeb9e62 100644 --- a/arch/arm/mach-s3c2412/mach-jive.c +++ b/arch/arm/mach-s3c2412/mach-jive.c @@ -17,7 +17,7 @@ #include <linux/timer.h> #include <linux/init.h> #include <linux/gpio.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/serial_core.h> #include <linux/platform_device.h> #include <linux/i2c.h> @@ -486,7 +486,7 @@ static struct s3c2410_udc_mach_info jive_udc_cfg __initdata = { /* Jive power management device */ #ifdef CONFIG_PM -static int jive_pm_suspend(struct sys_device *sd, pm_message_t state) +static int jive_pm_suspend(void) { /* Write the magic value u-boot uses to check for resume into * the INFORM0 register, and ensure INFORM1 is set to the @@ -498,10 +498,9 @@ static int jive_pm_suspend(struct sys_device *sd, pm_message_t state) return 0; } -static int jive_pm_resume(struct sys_device *sd) +static void jive_pm_resume(void) { __raw_writel(0x0, S3C2412_INFORM0); - return 0; } #else @@ -509,16 +508,11 @@ static int jive_pm_resume(struct sys_device *sd) #define jive_pm_resume NULL #endif -static struct sysdev_class jive_pm_sysclass = { - .name = "jive-pm", +static struct syscore_ops jive_pm_syscore_ops = { .suspend = jive_pm_suspend, .resume = jive_pm_resume, }; -static struct sys_device jive_pm_sysdev = { - .cls = &jive_pm_sysclass, -}; - static void __init jive_map_io(void) { s3c24xx_init_io(jive_iodesc, ARRAY_SIZE(jive_iodesc)); @@ -536,10 +530,9 @@ static void jive_power_off(void) static void __init jive_machine_init(void) { - /* register system devices for managing low level suspend */ + /* register system core operations for managing low level suspend */ - sysdev_class_register(&jive_pm_sysclass); - sysdev_register(&jive_pm_sysdev); + register_syscore_ops(&jive_pm_syscore_ops); /* write our sleep configurations for the IO. Pull down all unused * IO, ensure that we have turned off all peripherals we do not diff --git a/arch/arm/mach-s3c2412/pm.c b/arch/arm/mach-s3c2412/pm.c index a7417c479ff..752b13a7b3d 100644 --- a/arch/arm/mach-s3c2412/pm.c +++ b/arch/arm/mach-s3c2412/pm.c @@ -17,6 +17,7 @@ #include <linux/timer.h> #include <linux/init.h> #include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/platform_device.h> #include <linux/io.h> @@ -86,13 +87,24 @@ static struct sleep_save s3c2412_sleep[] = { SAVE_ITEM(S3C2413_GPJSLPCON), }; -static int s3c2412_pm_suspend(struct sys_device *dev, pm_message_t state) +static struct sysdev_driver s3c2412_pm_driver = { + .add = s3c2412_pm_add, +}; + +static __init int s3c2412_pm_init(void) +{ + return sysdev_driver_register(&s3c2412_sysclass, &s3c2412_pm_driver); +} + +arch_initcall(s3c2412_pm_init); + +static int s3c2412_pm_suspend(void) { s3c_pm_do_save(s3c2412_sleep, ARRAY_SIZE(s3c2412_sleep)); return 0; } -static int s3c2412_pm_resume(struct sys_device *dev) +static void s3c2412_pm_resume(void) { unsigned long tmp; @@ -102,18 +114,9 @@ static int s3c2412_pm_resume(struct sys_device *dev) __raw_writel(tmp, S3C2412_PWRCFG); s3c_pm_do_restore(s3c2412_sleep, ARRAY_SIZE(s3c2412_sleep)); - return 0; } -static struct sysdev_driver s3c2412_pm_driver = { - .add = s3c2412_pm_add, +struct syscore_ops s3c2412_pm_syscore_ops = { .suspend = s3c2412_pm_suspend, .resume = s3c2412_pm_resume, }; - -static __init int s3c2412_pm_init(void) -{ - return sysdev_driver_register(&s3c2412_sysclass, &s3c2412_pm_driver); -} - -arch_initcall(s3c2412_pm_init); diff --git a/arch/arm/mach-s3c2412/s3c2412.c b/arch/arm/mach-s3c2412/s3c2412.c index 4c6df51ddf3..ef0958d3e5c 100644 --- a/arch/arm/mach-s3c2412/s3c2412.c +++ b/arch/arm/mach-s3c2412/s3c2412.c @@ -19,6 +19,7 @@ #include <linux/clk.h> #include <linux/delay.h> #include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/serial_core.h> #include <linux/platform_device.h> #include <linux/io.h> @@ -244,5 +245,8 @@ int __init s3c2412_init(void) { printk("S3C2412: Initialising architecture\n"); + register_syscore_ops(&s3c2412_pm_syscore_ops); + register_syscore_ops(&s3c24xx_irq_syscore_ops); + return sysdev_register(&s3c2412_sysdev); } diff --git a/arch/arm/mach-s3c2416/irq.c b/arch/arm/mach-s3c2416/irq.c index 77b38f2381c..28ad20d4244 100644 --- a/arch/arm/mach-s3c2416/irq.c +++ b/arch/arm/mach-s3c2416/irq.c @@ -236,8 +236,6 @@ static int __init s3c2416_irq_add(struct sys_device *sysdev) static struct sysdev_driver s3c2416_irq_driver = { .add = s3c2416_irq_add, - .suspend = s3c24xx_irq_suspend, - .resume = s3c24xx_irq_resume, }; static int __init s3c2416_irq_init(void) diff --git a/arch/arm/mach-s3c2416/pm.c b/arch/arm/mach-s3c2416/pm.c index 4a04205b04d..41db2b21e21 100644 --- a/arch/arm/mach-s3c2416/pm.c +++ b/arch/arm/mach-s3c2416/pm.c @@ -11,6 +11,7 @@ */ #include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/io.h> #include <asm/cacheflush.h> @@ -55,30 +56,26 @@ static int s3c2416_pm_add(struct sys_device *sysdev) return 0; } -static int s3c2416_pm_suspend(struct sys_device *dev, pm_message_t state) +static struct sysdev_driver s3c2416_pm_driver = { + .add = s3c2416_pm_add, +}; + +static __init int s3c2416_pm_init(void) { - return 0; + return sysdev_driver_register(&s3c2416_sysclass, &s3c2416_pm_driver); } -static int s3c2416_pm_resume(struct sys_device *dev) +arch_initcall(s3c2416_pm_init); + + +static void s3c2416_pm_resume(void) { /* unset the return-from-sleep amd inform flags */ __raw_writel(0x0, S3C2443_PWRMODE); __raw_writel(0x0, S3C2412_INFORM0); __raw_writel(0x0, S3C2412_INFORM1); - - return 0; } -static struct sysdev_driver s3c2416_pm_driver = { - .add = s3c2416_pm_add, - .suspend = s3c2416_pm_suspend, +struct syscore_ops s3c2416_pm_syscore_ops = { .resume = s3c2416_pm_resume, }; - -static __init int s3c2416_pm_init(void) -{ - return sysdev_driver_register(&s3c2416_sysclass, &s3c2416_pm_driver); -} - -arch_initcall(s3c2416_pm_init); diff --git a/arch/arm/mach-s3c2416/s3c2416.c b/arch/arm/mach-s3c2416/s3c2416.c index ba7fd873743..494ce913dc9 100644 --- a/arch/arm/mach-s3c2416/s3c2416.c +++ b/arch/arm/mach-s3c2416/s3c2416.c @@ -32,6 +32,7 @@ #include <linux/platform_device.h> #include <linux/serial_core.h> #include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/clk.h> #include <linux/io.h> @@ -54,6 +55,7 @@ #include <plat/devs.h> #include <plat/cpu.h> #include <plat/sdhci.h> +#include <plat/pm.h> #include <plat/iic-core.h> #include <plat/fb-core.h> @@ -95,6 +97,9 @@ int __init s3c2416_init(void) s3c_fb_setname("s3c2443-fb"); + register_syscore_ops(&s3c2416_pm_syscore_ops); + register_syscore_ops(&s3c24xx_irq_syscore_ops); + return sysdev_register(&s3c2416_sysdev); } diff --git a/arch/arm/mach-s3c2440/mach-osiris.c b/arch/arm/mach-s3c2440/mach-osiris.c index 14dc6789775..d8853639331 100644 --- a/arch/arm/mach-s3c2440/mach-osiris.c +++ b/arch/arm/mach-s3c2440/mach-osiris.c @@ -17,7 +17,7 @@ #include <linux/init.h> #include <linux/gpio.h> #include <linux/device.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/serial_core.h> #include <linux/clk.h> #include <linux/i2c.h> @@ -284,7 +284,7 @@ static struct platform_device osiris_pcmcia = { #ifdef CONFIG_PM static unsigned char pm_osiris_ctrl0; -static int osiris_pm_suspend(struct sys_device *sd, pm_message_t state) +static int osiris_pm_suspend(void) { unsigned int tmp; @@ -304,7 +304,7 @@ static int osiris_pm_suspend(struct sys_device *sd, pm_message_t state) return 0; } -static int osiris_pm_resume(struct sys_device *sd) +static void osiris_pm_resume(void) { if (pm_osiris_ctrl0 & OSIRIS_CTRL0_FIX8) __raw_writeb(OSIRIS_CTRL1_FIX8, OSIRIS_VA_CTRL1); @@ -312,8 +312,6 @@ static int osiris_pm_resume(struct sys_device *sd) __raw_writeb(pm_osiris_ctrl0, OSIRIS_VA_CTRL0); s3c_gpio_cfgpin(S3C2410_GPA(21), S3C2410_GPA21_nRSTOUT); - - return 0; } #else @@ -321,16 +319,11 @@ static int osiris_pm_resume(struct sys_device *sd) #define osiris_pm_resume NULL #endif -static struct sysdev_class osiris_pm_sysclass = { - .name = "mach-osiris", +static struct syscore_ops osiris_pm_syscore_ops = { .suspend = osiris_pm_suspend, .resume = osiris_pm_resume, }; -static struct sys_device osiris_pm_sysdev = { - .cls = &osiris_pm_sysclass, -}; - /* Link for DVS driver to TPS65011 */ static void osiris_tps_release(struct device *dev) @@ -439,8 +432,7 @@ static void __init osiris_map_io(void) static void __init osiris_init(void) { - sysdev_class_register(&osiris_pm_sysclass); - sysdev_register(&osiris_pm_sysdev); + register_syscore_ops(&osiris_pm_syscore_ops); s3c_i2c0_set_platdata(NULL); s3c_nand_set_platdata(&osiris_nand_info); diff --git a/arch/arm/mach-s3c2440/s3c2440.c b/arch/arm/mach-s3c2440/s3c2440.c index f7663f731ea..ce99ff72838 100644 --- a/arch/arm/mach-s3c2440/s3c2440.c +++ b/arch/arm/mach-s3c2440/s3c2440.c @@ -19,6 +19,7 @@ #include <linux/platform_device.h> #include <linux/serial_core.h> #include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/gpio.h> #include <linux/clk.h> #include <linux/io.h> @@ -33,6 +34,7 @@ #include <plat/devs.h> #include <plat/cpu.h> #include <plat/s3c244x.h> +#include <plat/pm.h> #include <plat/gpio-core.h> #include <plat/gpio-cfg.h> @@ -51,6 +53,12 @@ int __init s3c2440_init(void) s3c_device_wdt.resource[1].start = IRQ_S3C2440_WDT; s3c_device_wdt.resource[1].end = IRQ_S3C2440_WDT; + /* register suspend/resume handlers */ + + register_syscore_ops(&s3c2410_pm_syscore_ops); + register_syscore_ops(&s3c244x_pm_syscore_ops); + register_syscore_ops(&s3c24xx_irq_syscore_ops); + /* register our system device for everything else */ return sysdev_register(&s3c2440_sysdev); diff --git a/arch/arm/mach-s3c2440/s3c2442.c b/arch/arm/mach-s3c2440/s3c2442.c index ecf81354655..6224bad4d60 100644 --- a/arch/arm/mach-s3c2440/s3c2442.c +++ b/arch/arm/mach-s3c2440/s3c2442.c @@ -29,6 +29,7 @@ #include <linux/err.h> #include <linux/device.h> #include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/interrupt.h> #include <linux/ioport.h> #include <linux/mutex.h> @@ -45,6 +46,7 @@ #include <plat/clock.h> #include <plat/cpu.h> #include <plat/s3c244x.h> +#include <plat/pm.h> #include <plat/gpio-core.h> #include <plat/gpio-cfg.h> @@ -167,6 +169,10 @@ int __init s3c2442_init(void) { printk("S3C2442: Initialising architecture\n"); + register_syscore_ops(&s3c2410_pm_syscore_ops); + register_syscore_ops(&s3c244x_pm_syscore_ops); + register_syscore_ops(&s3c24xx_irq_syscore_ops); + return sysdev_register(&s3c2442_sysdev); } diff --git a/arch/arm/mach-s3c2440/s3c244x-irq.c b/arch/arm/mach-s3c2440/s3c244x-irq.c index de07c2feaa3..c63e8f26d90 100644 --- a/arch/arm/mach-s3c2440/s3c244x-irq.c +++ b/arch/arm/mach-s3c2440/s3c244x-irq.c @@ -116,8 +116,6 @@ static int s3c244x_irq_add(struct sys_device *sysdev) static struct sysdev_driver s3c2440_irq_driver = { .add = s3c244x_irq_add, - .suspend = s3c24xx_irq_suspend, - .resume = s3c24xx_irq_resume, }; static int s3c2440_irq_init(void) @@ -129,8 +127,6 @@ arch_initcall(s3c2440_irq_init); static struct sysdev_driver s3c2442_irq_driver = { .add = s3c244x_irq_add, - .suspend = s3c24xx_irq_suspend, - .resume = s3c24xx_irq_resume, }; diff --git a/arch/arm/mach-s3c2440/s3c244x.c b/arch/arm/mach-s3c2440/s3c244x.c index 90c1707b9c9..7e8a23d2098 100644 --- a/arch/arm/mach-s3c2440/s3c244x.c +++ b/arch/arm/mach-s3c2440/s3c244x.c @@ -19,6 +19,7 @@ #include <linux/serial_core.h> #include <linux/platform_device.h> #include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/clk.h> #include <linux/io.h> @@ -134,45 +135,14 @@ void __init s3c244x_init_clocks(int xtal) s3c2410_baseclk_add(); } -#ifdef CONFIG_PM - -static struct sleep_save s3c244x_sleep[] = { - SAVE_ITEM(S3C2440_DSC0), - SAVE_ITEM(S3C2440_DSC1), - SAVE_ITEM(S3C2440_GPJDAT), - SAVE_ITEM(S3C2440_GPJCON), - SAVE_ITEM(S3C2440_GPJUP) -}; - -static int s3c244x_suspend(struct sys_device *dev, pm_message_t state) -{ - s3c_pm_do_save(s3c244x_sleep, ARRAY_SIZE(s3c244x_sleep)); - return 0; -} - -static int s3c244x_resume(struct sys_device *dev) -{ - s3c_pm_do_restore(s3c244x_sleep, ARRAY_SIZE(s3c244x_sleep)); - return 0; -} - -#else -#define s3c244x_suspend NULL -#define s3c244x_resume NULL -#endif - /* Since the S3C2442 and S3C2440 share items, put both sysclasses here */ struct sysdev_class s3c2440_sysclass = { .name = "s3c2440-core", - .suspend = s3c244x_suspend, - .resume = s3c244x_resume }; struct sysdev_class s3c2442_sysclass = { .name = "s3c2442-core", - .suspend = s3c244x_suspend, - .resume = s3c244x_resume }; /* need to register class before we actually register the device, and @@ -194,3 +164,33 @@ static int __init s3c2442_core_init(void) } core_initcall(s3c2442_core_init); + + +#ifdef CONFIG_PM +static struct sleep_save s3c244x_sleep[] = { + SAVE_ITEM(S3C2440_DSC0), + SAVE_ITEM(S3C2440_DSC1), + SAVE_ITEM(S3C2440_GPJDAT), + SAVE_ITEM(S3C2440_GPJCON), + SAVE_ITEM(S3C2440_GPJUP) +}; + +static int s3c244x_suspend(void) +{ + s3c_pm_do_save(s3c244x_sleep, ARRAY_SIZE(s3c244x_sleep)); + return 0; +} + +static void s3c244x_resume(void) +{ + s3c_pm_do_restore(s3c244x_sleep, ARRAY_SIZE(s3c244x_sleep)); +} +#else +#define s3c244x_suspend NULL +#define s3c244x_resume NULL +#endif + +struct syscore_ops s3c244x_pm_syscore_ops = { + .suspend = s3c244x_suspend, + .resume = s3c244x_resume, +}; diff --git a/arch/arm/mach-s3c64xx/irq-pm.c b/arch/arm/mach-s3c64xx/irq-pm.c index da1bec64b9d..8bec61e242c 100644 --- a/arch/arm/mach-s3c64xx/irq-pm.c +++ b/arch/arm/mach-s3c64xx/irq-pm.c @@ -13,7 +13,7 @@ */ #include <linux/kernel.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/interrupt.h> #include <linux/serial_core.h> #include <linux/irq.h> @@ -54,7 +54,7 @@ static struct irq_grp_save { static u32 irq_uart_mask[CONFIG_SERIAL_SAMSUNG_UARTS]; -static int s3c64xx_irq_pm_suspend(struct sys_device *dev, pm_message_t state) +static int s3c64xx_irq_pm_suspend(void) { struct irq_grp_save *grp = eint_grp_save; int i; @@ -75,7 +75,7 @@ static int s3c64xx_irq_pm_suspend(struct sys_device *dev, pm_message_t state) return 0; } -static int s3c64xx_irq_pm_resume(struct sys_device *dev) +static void s3c64xx_irq_pm_resume(void) { struct irq_grp_save *grp = eint_grp_save; int i; @@ -94,18 +94,18 @@ static int s3c64xx_irq_pm_resume(struct sys_device *dev) } S3C_PMDBG("%s: IRQ configuration restored\n", __func__); - return 0; } -static struct sysdev_driver s3c64xx_irq_driver = { +struct syscore_ops s3c64xx_irq_syscore_ops = { .suspend = s3c64xx_irq_pm_suspend, .resume = s3c64xx_irq_pm_resume, }; -static int __init s3c64xx_irq_pm_init(void) +static __init int s3c64xx_syscore_init(void) { - return sysdev_driver_register(&s3c64xx_sysclass, &s3c64xx_irq_driver); -} + register_syscore_ops(&s3c64xx_irq_syscore_ops); -arch_initcall(s3c64xx_irq_pm_init); + return 0; +} +core_initcall(s3c64xx_syscore_init); diff --git a/arch/arm/mach-s5pv210/pm.c b/arch/arm/mach-s5pv210/pm.c index 549d7924fd4..24febae3d4c 100644 --- a/arch/arm/mach-s5pv210/pm.c +++ b/arch/arm/mach-s5pv210/pm.c @@ -16,6 +16,7 @@ #include <linux/init.h> #include <linux/suspend.h> +#include <linux/syscore_ops.h> #include <linux/io.h> #include <plat/cpu.h> @@ -140,7 +141,17 @@ static int s5pv210_pm_add(struct sys_device *sysdev) return 0; } -static int s5pv210_pm_resume(struct sys_device *dev) +static struct sysdev_driver s5pv210_pm_driver = { + .add = s5pv210_pm_add, +}; + +static __init int s5pv210_pm_drvinit(void) +{ + return sysdev_driver_register(&s5pv210_sysclass, &s5pv210_pm_driver); +} +arch_initcall(s5pv210_pm_drvinit); + +static void s5pv210_pm_resume(void) { u32 tmp; @@ -150,17 +161,15 @@ static int s5pv210_pm_resume(struct sys_device *dev) __raw_writel(tmp , S5P_OTHERS); s3c_pm_do_restore_core(s5pv210_core_save, ARRAY_SIZE(s5pv210_core_save)); - - return 0; } -static struct sysdev_driver s5pv210_pm_driver = { - .add = s5pv210_pm_add, +static struct syscore_ops s5pv210_pm_syscore_ops = { .resume = s5pv210_pm_resume, }; -static __init int s5pv210_pm_drvinit(void) +static __init int s5pv210_pm_syscore_init(void) { - return sysdev_driver_register(&s5pv210_sysclass, &s5pv210_pm_driver); + register_syscore_ops(&s5pv210_pm_syscore_ops); + return 0; } -arch_initcall(s5pv210_pm_drvinit); +arch_initcall(s5pv210_pm_syscore_init); diff --git a/arch/arm/mach-sa1100/irq.c b/arch/arm/mach-sa1100/irq.c index 423ddb3d65e..dfbf824a69f 100644 --- a/arch/arm/mach-sa1100/irq.c +++ b/arch/arm/mach-sa1100/irq.c @@ -14,7 +14,7 @@ #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/ioport.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <mach/hardware.h> #include <asm/mach/irq.h> @@ -234,7 +234,7 @@ static struct sa1100irq_state { unsigned int iccr; } sa1100irq_state; -static int sa1100irq_suspend(struct sys_device *dev, pm_message_t state) +static int sa1100irq_suspend(void) { struct sa1100irq_state *st = &sa1100irq_state; @@ -264,7 +264,7 @@ static int sa1100irq_suspend(struct sys_device *dev, pm_message_t state) return 0; } -static int sa1100irq_resume(struct sys_device *dev) +static void sa1100irq_resume(void) { struct sa1100irq_state *st = &sa1100irq_state; @@ -277,24 +277,17 @@ static int sa1100irq_resume(struct sys_device *dev) ICMR = st->icmr; } - return 0; } -static struct sysdev_class sa1100irq_sysclass = { - .name = "sa11x0-irq", +static struct syscore_ops sa1100irq_syscore_ops = { .suspend = sa1100irq_suspend, .resume = sa1100irq_resume, }; -static struct sys_device sa1100irq_device = { - .id = 0, - .cls = &sa1100irq_sysclass, -}; - static int __init sa1100irq_init_devicefs(void) { - sysdev_class_register(&sa1100irq_sysclass); - return sysdev_register(&sa1100irq_device); + register_syscore_ops(&sa1100irq_syscore_ops); + return 0; } device_initcall(sa1100irq_init_devicefs); diff --git a/arch/arm/mach-shmobile/pm_runtime.c b/arch/arm/mach-shmobile/pm_runtime.c index 94912d3944d..2d1b67a59e4 100644 --- a/arch/arm/mach-shmobile/pm_runtime.c +++ b/arch/arm/mach-shmobile/pm_runtime.c @@ -18,152 +18,41 @@ #include <linux/clk.h> #include <linux/sh_clk.h> #include <linux/bitmap.h> +#include <linux/slab.h> #ifdef CONFIG_PM_RUNTIME -#define BIT_ONCE 0 -#define BIT_ACTIVE 1 -#define BIT_CLK_ENABLED 2 -struct pm_runtime_data { - unsigned long flags; - struct clk *clk; -}; - -static void __devres_release(struct device *dev, void *res) -{ - struct pm_runtime_data *prd = res; - - dev_dbg(dev, "__devres_release()\n"); - - if (test_bit(BIT_CLK_ENABLED, &prd->flags)) - clk_disable(prd->clk); - - if (test_bit(BIT_ACTIVE, &prd->flags)) - clk_put(prd->clk); -} - -static struct pm_runtime_data *__to_prd(struct device *dev) -{ - return devres_find(dev, __devres_release, NULL, NULL); -} - -static void platform_pm_runtime_init(struct device *dev, - struct pm_runtime_data *prd) -{ - if (prd && !test_and_set_bit(BIT_ONCE, &prd->flags)) { - prd->clk = clk_get(dev, NULL); - if (!IS_ERR(prd->clk)) { - set_bit(BIT_ACTIVE, &prd->flags); - dev_info(dev, "clocks managed by runtime pm\n"); - } - } -} - -static void platform_pm_runtime_bug(struct device *dev, - struct pm_runtime_data *prd) -{ - if (prd && !test_and_set_bit(BIT_ONCE, &prd->flags)) - dev_err(dev, "runtime pm suspend before resume\n"); -} - -int platform_pm_runtime_suspend(struct device *dev) -{ - struct pm_runtime_data *prd = __to_prd(dev); - - dev_dbg(dev, "platform_pm_runtime_suspend()\n"); - - platform_pm_runtime_bug(dev, prd); - - if (prd && test_bit(BIT_ACTIVE, &prd->flags)) { - clk_disable(prd->clk); - clear_bit(BIT_CLK_ENABLED, &prd->flags); - } - - return 0; -} - -int platform_pm_runtime_resume(struct device *dev) -{ - struct pm_runtime_data *prd = __to_prd(dev); - - dev_dbg(dev, "platform_pm_runtime_resume()\n"); - - platform_pm_runtime_init(dev, prd); - - if (prd && test_bit(BIT_ACTIVE, &prd->flags)) { - clk_enable(prd->clk); - set_bit(BIT_CLK_ENABLED, &prd->flags); - } - - return 0; -} - -int platform_pm_runtime_idle(struct device *dev) +static int default_platform_runtime_idle(struct device *dev) { /* suspend synchronously to disable clocks immediately */ return pm_runtime_suspend(dev); } -static int platform_bus_notify(struct notifier_block *nb, - unsigned long action, void *data) -{ - struct device *dev = data; - struct pm_runtime_data *prd; - - dev_dbg(dev, "platform_bus_notify() %ld !\n", action); - - if (action == BUS_NOTIFY_BIND_DRIVER) { - prd = devres_alloc(__devres_release, sizeof(*prd), GFP_KERNEL); - if (prd) - devres_add(dev, prd); - else - dev_err(dev, "unable to alloc memory for runtime pm\n"); - } - - return 0; -} - -#else /* CONFIG_PM_RUNTIME */ - -static int platform_bus_notify(struct notifier_block *nb, - unsigned long action, void *data) -{ - struct device *dev = data; - struct clk *clk; +static struct dev_power_domain default_power_domain = { + .ops = { + .runtime_suspend = pm_runtime_clk_suspend, + .runtime_resume = pm_runtime_clk_resume, + .runtime_idle = default_platform_runtime_idle, + USE_PLATFORM_PM_SLEEP_OPS + }, +}; - dev_dbg(dev, "platform_bus_notify() %ld !\n", action); +#define DEFAULT_PWR_DOMAIN_PTR (&default_power_domain) - switch (action) { - case BUS_NOTIFY_BIND_DRIVER: - clk = clk_get(dev, NULL); - if (!IS_ERR(clk)) { - clk_enable(clk); - clk_put(clk); - dev_info(dev, "runtime pm disabled, clock forced on\n"); - } - break; - case BUS_NOTIFY_UNBOUND_DRIVER: - clk = clk_get(dev, NULL); - if (!IS_ERR(clk)) { - clk_disable(clk); - clk_put(clk); - dev_info(dev, "runtime pm disabled, clock forced off\n"); - } - break; - } +#else - return 0; -} +#define DEFAULT_PWR_DOMAIN_PTR NULL #endif /* CONFIG_PM_RUNTIME */ -static struct notifier_block platform_bus_notifier = { - .notifier_call = platform_bus_notify +static struct pm_clk_notifier_block platform_bus_notifier = { + .pwr_domain = DEFAULT_PWR_DOMAIN_PTR, + .con_ids = { NULL, }, }; static int __init sh_pm_runtime_init(void) { - bus_register_notifier(&platform_bus_type, &platform_bus_notifier); + pm_runtime_clk_add_notifier(&platform_bus_type, &platform_bus_notifier); return 0; } core_initcall(sh_pm_runtime_init); diff --git a/arch/arm/mach-tegra/include/mach/barriers.h b/arch/arm/mach-tegra/include/mach/barriers.h index cc115174899..425b42e91ef 100644 --- a/arch/arm/mach-tegra/include/mach/barriers.h +++ b/arch/arm/mach-tegra/include/mach/barriers.h @@ -23,7 +23,7 @@ #include <asm/outercache.h> -#define rmb() dmb() +#define rmb() dsb() #define wmb() do { dsb(); outer_sync(); } while (0) #define mb() wmb() diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index e5f6fc42834..e591513bb53 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -392,7 +392,7 @@ free_memmap(unsigned long start_pfn, unsigned long end_pfn) * Convert start_pfn/end_pfn to a struct page pointer. */ start_pg = pfn_to_page(start_pfn - 1) + 1; - end_pg = pfn_to_page(end_pfn); + end_pg = pfn_to_page(end_pfn - 1) + 1; /* * Convert to physical addresses, and @@ -426,6 +426,14 @@ static void __init free_unused_memmap(struct meminfo *mi) bank_start = bank_pfn_start(bank); +#ifdef CONFIG_SPARSEMEM + /* + * Take care not to free memmap entries that don't exist + * due to SPARSEMEM sections which aren't present. + */ + bank_start = min(bank_start, + ALIGN(prev_bank_end, PAGES_PER_SECTION)); +#endif /* * If we had a previous bank, and there is a space * between the current bank and the previous, free it. @@ -440,6 +448,12 @@ static void __init free_unused_memmap(struct meminfo *mi) */ prev_bank_end = ALIGN(bank_pfn_end(bank), MAX_ORDER_NR_PAGES); } + +#ifdef CONFIG_SPARSEMEM + if (!IS_ALIGNED(prev_bank_end, PAGES_PER_SECTION)) + free_memmap(prev_bank_end, + ALIGN(prev_bank_end, PAGES_PER_SECTION)); +#endif } static void __init free_highpages(void) diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c index d2adcdda23c..bd9e32187ea 100644 --- a/arch/arm/plat-omap/gpio.c +++ b/arch/arm/plat-omap/gpio.c @@ -17,7 +17,7 @@ #include <linux/init.h> #include <linux/module.h> #include <linux/interrupt.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/err.h> #include <linux/clk.h> #include <linux/io.h> @@ -1372,9 +1372,7 @@ static const struct dev_pm_ops omap_mpuio_dev_pm_ops = { .resume_noirq = omap_mpuio_resume_noirq, }; -/* use platform_driver for this, now that there's no longer any - * point to sys_device (other than not disturbing old code). - */ +/* use platform_driver for this. */ static struct platform_driver omap_mpuio_driver = { .driver = { .name = "mpuio", @@ -1745,7 +1743,7 @@ static int __devinit omap_gpio_probe(struct platform_device *pdev) } #if defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP2PLUS) -static int omap_gpio_suspend(struct sys_device *dev, pm_message_t mesg) +static int omap_gpio_suspend(void) { int i; @@ -1795,12 +1793,12 @@ static int omap_gpio_suspend(struct sys_device *dev, pm_message_t mesg) return 0; } -static int omap_gpio_resume(struct sys_device *dev) +static void omap_gpio_resume(void) { int i; if (!cpu_class_is_omap2() && !cpu_is_omap16xx()) - return 0; + return; for (i = 0; i < gpio_bank_count; i++) { struct gpio_bank *bank = &gpio_bank[i]; @@ -1836,21 +1834,13 @@ static int omap_gpio_resume(struct sys_device *dev) __raw_writel(bank->saved_wakeup, wake_set); spin_unlock_irqrestore(&bank->lock, flags); } - - return 0; } -static struct sysdev_class omap_gpio_sysclass = { - .name = "gpio", +static struct syscore_ops omap_gpio_syscore_ops = { .suspend = omap_gpio_suspend, .resume = omap_gpio_resume, }; -static struct sys_device omap_gpio_device = { - .id = 0, - .cls = &omap_gpio_sysclass, -}; - #endif #ifdef CONFIG_ARCH_OMAP2PLUS @@ -2108,21 +2098,14 @@ postcore_initcall(omap_gpio_drv_reg); static int __init omap_gpio_sysinit(void) { - int ret = 0; - mpuio_init(); #if defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP2PLUS) - if (cpu_is_omap16xx() || cpu_class_is_omap2()) { - if (ret == 0) { - ret = sysdev_class_register(&omap_gpio_sysclass); - if (ret == 0) - ret = sysdev_register(&omap_gpio_device); - } - } + if (cpu_is_omap16xx() || cpu_class_is_omap2()) + register_syscore_ops(&omap_gpio_syscore_ops); #endif - return ret; + return 0; } arch_initcall(omap_gpio_sysinit); diff --git a/arch/arm/plat-omap/iommu.c b/arch/arm/plat-omap/iommu.c index 8a51fd58f65..34fc31ee908 100644 --- a/arch/arm/plat-omap/iommu.c +++ b/arch/arm/plat-omap/iommu.c @@ -793,6 +793,8 @@ static irqreturn_t iommu_fault_handler(int irq, void *data) clk_enable(obj->clk); errs = iommu_report_fault(obj, &da); clk_disable(obj->clk); + if (errs == 0) + return IRQ_HANDLED; /* Fault callback or TLB/PTE Dynamic loading */ if (obj->isr && !obj->isr(obj, da, errs, obj->isr_priv)) diff --git a/arch/arm/plat-omap/omap_device.c b/arch/arm/plat-omap/omap_device.c index 9bbda9acb73..a37b8eb65b7 100644 --- a/arch/arm/plat-omap/omap_device.c +++ b/arch/arm/plat-omap/omap_device.c @@ -536,6 +536,28 @@ int omap_early_device_register(struct omap_device *od) return 0; } +static int _od_runtime_suspend(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + + return omap_device_idle(pdev); +} + +static int _od_runtime_resume(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + + return omap_device_enable(pdev); +} + +static struct dev_power_domain omap_device_power_domain = { + .ops = { + .runtime_suspend = _od_runtime_suspend, + .runtime_resume = _od_runtime_resume, + USE_PLATFORM_PM_SLEEP_OPS + } +}; + /** * omap_device_register - register an omap_device with one omap_hwmod * @od: struct omap_device * to register @@ -549,6 +571,7 @@ int omap_device_register(struct omap_device *od) pr_debug("omap_device: %s: registering\n", od->pdev.name); od->pdev.dev.parent = &omap_device_parent; + od->pdev.dev.pwr_domain = &omap_device_power_domain; return platform_device_register(&od->pdev); } diff --git a/arch/arm/plat-pxa/gpio.c b/arch/arm/plat-pxa/gpio.c index dce088f4567..48ebb9479b6 100644 --- a/arch/arm/plat-pxa/gpio.c +++ b/arch/arm/plat-pxa/gpio.c @@ -15,7 +15,7 @@ #include <linux/init.h> #include <linux/irq.h> #include <linux/io.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/slab.h> #include <mach/gpio.h> @@ -295,7 +295,7 @@ void __init pxa_init_gpio(int mux_irq, int start, int end, set_wake_t fn) } #ifdef CONFIG_PM -static int pxa_gpio_suspend(struct sys_device *dev, pm_message_t state) +static int pxa_gpio_suspend(void) { struct pxa_gpio_chip *c; int gpio; @@ -312,7 +312,7 @@ static int pxa_gpio_suspend(struct sys_device *dev, pm_message_t state) return 0; } -static int pxa_gpio_resume(struct sys_device *dev) +static void pxa_gpio_resume(void) { struct pxa_gpio_chip *c; int gpio; @@ -326,22 +326,13 @@ static int pxa_gpio_resume(struct sys_device *dev) __raw_writel(c->saved_gfer, c->regbase + GFER_OFFSET); __raw_writel(c->saved_gpdr, c->regbase + GPDR_OFFSET); } - return 0; } #else #define pxa_gpio_suspend NULL #define pxa_gpio_resume NULL #endif -struct sysdev_class pxa_gpio_sysclass = { - .name = "gpio", +struct syscore_ops pxa_gpio_syscore_ops = { .suspend = pxa_gpio_suspend, .resume = pxa_gpio_resume, }; - -static int __init pxa_gpio_init(void) -{ - return sysdev_class_register(&pxa_gpio_sysclass); -} - -core_initcall(pxa_gpio_init); diff --git a/arch/arm/plat-pxa/mfp.c b/arch/arm/plat-pxa/mfp.c index a9aa5ad3f4e..be12eadcce2 100644 --- a/arch/arm/plat-pxa/mfp.c +++ b/arch/arm/plat-pxa/mfp.c @@ -17,7 +17,6 @@ #include <linux/kernel.h> #include <linux/init.h> #include <linux/io.h> -#include <linux/sysdev.h> #include <plat/mfp.h> diff --git a/arch/arm/plat-s3c24xx/dma.c b/arch/arm/plat-s3c24xx/dma.c index 27ea852e337..c10d10c56e2 100644 --- a/arch/arm/plat-s3c24xx/dma.c +++ b/arch/arm/plat-s3c24xx/dma.c @@ -22,7 +22,7 @@ #include <linux/sched.h> #include <linux/spinlock.h> #include <linux/interrupt.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/slab.h> #include <linux/errno.h> #include <linux/io.h> @@ -1195,19 +1195,12 @@ int s3c2410_dma_getposition(unsigned int channel, dma_addr_t *src, dma_addr_t *d EXPORT_SYMBOL(s3c2410_dma_getposition); -static inline struct s3c2410_dma_chan *to_dma_chan(struct sys_device *dev) -{ - return container_of(dev, struct s3c2410_dma_chan, dev); -} - -/* system device class */ +/* system core operations */ #ifdef CONFIG_PM -static int s3c2410_dma_suspend(struct sys_device *dev, pm_message_t state) +static void s3c2410_dma_suspend_chan(s3c2410_dma_chan *cp) { - struct s3c2410_dma_chan *cp = to_dma_chan(dev); - printk(KERN_DEBUG "suspending dma channel %d\n", cp->number); if (dma_rdreg(cp, S3C2410_DMA_DMASKTRIG) & S3C2410_DMASKTRIG_ON) { @@ -1222,13 +1215,21 @@ static int s3c2410_dma_suspend(struct sys_device *dev, pm_message_t state) s3c2410_dma_dostop(cp); } +} + +static int s3c2410_dma_suspend(void) +{ + struct s3c2410_dma_chan *cp = s3c2410_chans; + int channel; + + for (channel = 0; channel < dma_channels; cp++, channel++) + s3c2410_dma_suspend_chan(cp); return 0; } -static int s3c2410_dma_resume(struct sys_device *dev) +static void s3c2410_dma_resume_chan(struct s3c2410_dma_chan *cp) { - struct s3c2410_dma_chan *cp = to_dma_chan(dev); unsigned int no = cp->number | DMACH_LOW_LEVEL; /* restore channel's hardware configuration */ @@ -1249,13 +1250,21 @@ static int s3c2410_dma_resume(struct sys_device *dev) return 0; } +static void s3c2410_dma_resume(void) +{ + struct s3c2410_dma_chan *cp = s3c2410_chans + dma_channels - 1; + int channel; + + for (channel = dma_channels - 1; channel >= 0; cp++, channel--) + s3c2410_dma_resume_chan(cp); +} + #else #define s3c2410_dma_suspend NULL #define s3c2410_dma_resume NULL #endif /* CONFIG_PM */ -struct sysdev_class dma_sysclass = { - .name = "s3c24xx-dma", +struct syscore_ops dma_syscore_ops = { .suspend = s3c2410_dma_suspend, .resume = s3c2410_dma_resume, }; @@ -1269,39 +1278,14 @@ static void s3c2410_dma_cache_ctor(void *p) /* initialisation code */ -static int __init s3c24xx_dma_sysclass_init(void) +static int __init s3c24xx_dma_syscore_init(void) { - int ret = sysdev_class_register(&dma_sysclass); - - if (ret != 0) - printk(KERN_ERR "dma sysclass registration failed\n"); - - return ret; -} - -core_initcall(s3c24xx_dma_sysclass_init); - -static int __init s3c24xx_dma_sysdev_register(void) -{ - struct s3c2410_dma_chan *cp = s3c2410_chans; - int channel, ret; - - for (channel = 0; channel < dma_channels; cp++, channel++) { - cp->dev.cls = &dma_sysclass; - cp->dev.id = channel; - ret = sysdev_register(&cp->dev); - - if (ret) { - printk(KERN_ERR "error registering dev for dma %d\n", - channel); - return ret; - } - } + register_syscore_ops(&dma_syscore_ops); return 0; } -late_initcall(s3c24xx_dma_sysdev_register); +late_initcall(s3c24xx_dma_syscore_init); int __init s3c24xx_dma_init(unsigned int channels, unsigned int irq, unsigned int stride) diff --git a/arch/arm/plat-s3c24xx/irq-pm.c b/arch/arm/plat-s3c24xx/irq-pm.c index c3624d89863..0efb2e2848c 100644 --- a/arch/arm/plat-s3c24xx/irq-pm.c +++ b/arch/arm/plat-s3c24xx/irq-pm.c @@ -14,7 +14,6 @@ #include <linux/init.h> #include <linux/module.h> #include <linux/interrupt.h> -#include <linux/sysdev.h> #include <linux/irq.h> #include <plat/cpu.h> @@ -65,7 +64,7 @@ static unsigned long save_extint[3]; static unsigned long save_eintflt[4]; static unsigned long save_eintmask; -int s3c24xx_irq_suspend(struct sys_device *dev, pm_message_t state) +int s3c24xx_irq_suspend(void) { unsigned int i; @@ -81,7 +80,7 @@ int s3c24xx_irq_suspend(struct sys_device *dev, pm_message_t state) return 0; } -int s3c24xx_irq_resume(struct sys_device *dev) +void s3c24xx_irq_resume(void) { unsigned int i; @@ -93,6 +92,4 @@ int s3c24xx_irq_resume(struct sys_device *dev) s3c_pm_do_restore(irq_save, ARRAY_SIZE(irq_save)); __raw_writel(save_eintmask, S3C24XX_EINTMASK); - - return 0; } diff --git a/arch/arm/plat-s5p/irq-pm.c b/arch/arm/plat-s5p/irq-pm.c index 5259ad458bc..327acb3a446 100644 --- a/arch/arm/plat-s5p/irq-pm.c +++ b/arch/arm/plat-s5p/irq-pm.c @@ -16,7 +16,6 @@ #include <linux/init.h> #include <linux/module.h> #include <linux/interrupt.h> -#include <linux/sysdev.h> #include <plat/cpu.h> #include <plat/irqs.h> @@ -77,17 +76,15 @@ static struct sleep_save eint_save[] = { SAVE_ITEM(S5P_EINT_MASK(3)), }; -int s3c24xx_irq_suspend(struct sys_device *dev, pm_message_t state) +int s3c24xx_irq_suspend(void) { s3c_pm_do_save(eint_save, ARRAY_SIZE(eint_save)); return 0; } -int s3c24xx_irq_resume(struct sys_device *dev) +void s3c24xx_irq_resume(void) { s3c_pm_do_restore(eint_save, ARRAY_SIZE(eint_save)); - - return 0; } diff --git a/arch/arm/plat-samsung/include/plat/cpu.h b/arch/arm/plat-samsung/include/plat/cpu.h index cedfff51c82..3aedac0034b 100644 --- a/arch/arm/plat-samsung/include/plat/cpu.h +++ b/arch/arm/plat-samsung/include/plat/cpu.h @@ -68,6 +68,12 @@ extern void s3c24xx_init_uartdevs(char *name, struct sys_timer; extern struct sys_timer s3c24xx_timer; +extern struct syscore_ops s3c2410_pm_syscore_ops; +extern struct syscore_ops s3c2412_pm_syscore_ops; +extern struct syscore_ops s3c2416_pm_syscore_ops; +extern struct syscore_ops s3c244x_pm_syscore_ops; +extern struct syscore_ops s3c64xx_irq_syscore_ops; + /* system device classes */ extern struct sysdev_class s3c2410_sysclass; diff --git a/arch/arm/plat-samsung/include/plat/pm.h b/arch/arm/plat-samsung/include/plat/pm.h index 937cc2ace51..7fb6f6be8c8 100644 --- a/arch/arm/plat-samsung/include/plat/pm.h +++ b/arch/arm/plat-samsung/include/plat/pm.h @@ -103,14 +103,16 @@ extern void s3c_pm_do_restore_core(struct sleep_save *ptr, int count); #ifdef CONFIG_PM extern int s3c_irqext_wake(struct irq_data *data, unsigned int state); -extern int s3c24xx_irq_suspend(struct sys_device *dev, pm_message_t state); -extern int s3c24xx_irq_resume(struct sys_device *dev); +extern int s3c24xx_irq_suspend(void); +extern void s3c24xx_irq_resume(void); #else #define s3c_irqext_wake NULL #define s3c24xx_irq_suspend NULL #define s3c24xx_irq_resume NULL #endif +extern struct syscore_ops s3c24xx_irq_syscore_ops; + /* PM debug functions */ #ifdef CONFIG_SAMSUNG_PM_DEBUG diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c index f74695075e6..f25e7ec8941 100644 --- a/arch/arm/vfp/vfpmodule.c +++ b/arch/arm/vfp/vfpmodule.c @@ -398,9 +398,9 @@ static void vfp_enable(void *unused) } #ifdef CONFIG_PM -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> -static int vfp_pm_suspend(struct sys_device *dev, pm_message_t state) +static int vfp_pm_suspend(void) { struct thread_info *ti = current_thread_info(); u32 fpexc = fmrx(FPEXC); @@ -420,34 +420,25 @@ static int vfp_pm_suspend(struct sys_device *dev, pm_message_t state) return 0; } -static int vfp_pm_resume(struct sys_device *dev) +static void vfp_pm_resume(void) { /* ensure we have access to the vfp */ vfp_enable(NULL); /* and disable it to ensure the next usage restores the state */ fmxr(FPEXC, fmrx(FPEXC) & ~FPEXC_EN); - - return 0; } -static struct sysdev_class vfp_pm_sysclass = { - .name = "vfp", +static struct syscore_ops vfp_pm_syscore_ops = { .suspend = vfp_pm_suspend, .resume = vfp_pm_resume, }; -static struct sys_device vfp_pm_sysdev = { - .cls = &vfp_pm_sysclass, -}; - static void vfp_pm_init(void) { - sysdev_class_register(&vfp_pm_sysclass); - sysdev_register(&vfp_pm_sysdev); + register_syscore_ops(&vfp_pm_syscore_ops); } - #else static inline void vfp_pm_init(void) { } #endif /* CONFIG_PM */ diff --git a/arch/avr32/mach-at32ap/intc.c b/arch/avr32/mach-at32ap/intc.c index 21ce35f33aa..3e3646186c9 100644 --- a/arch/avr32/mach-at32ap/intc.c +++ b/arch/avr32/mach-at32ap/intc.c @@ -12,7 +12,7 @@ #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/platform_device.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <asm/io.h> @@ -21,7 +21,6 @@ struct intc { void __iomem *regs; struct irq_chip chip; - struct sys_device sysdev; #ifdef CONFIG_PM unsigned long suspend_ipr; unsigned long saved_ipr[64]; @@ -146,9 +145,8 @@ void intc_set_suspend_handler(unsigned long offset) intc0.suspend_ipr = offset; } -static int intc_suspend(struct sys_device *sdev, pm_message_t state) +static int intc_suspend(void) { - struct intc *intc = container_of(sdev, struct intc, sysdev); int i; if (unlikely(!irqs_disabled())) { @@ -156,28 +154,25 @@ static int intc_suspend(struct sys_device *sdev, pm_message_t state) return -EINVAL; } - if (unlikely(!intc->suspend_ipr)) { + if (unlikely(!intc0.suspend_ipr)) { pr_err("intc_suspend: suspend_ipr not initialized\n"); return -EINVAL; } for (i = 0; i < 64; i++) { - intc->saved_ipr[i] = intc_readl(intc, INTPR0 + 4 * i); - intc_writel(intc, INTPR0 + 4 * i, intc->suspend_ipr); + intc0.saved_ipr[i] = intc_readl(&intc0, INTPR0 + 4 * i); + intc_writel(&intc0, INTPR0 + 4 * i, intc0.suspend_ipr); } return 0; } -static int intc_resume(struct sys_device *sdev) +static int intc_resume(void) { - struct intc *intc = container_of(sdev, struct intc, sysdev); int i; - WARN_ON(!irqs_disabled()); - for (i = 0; i < 64; i++) - intc_writel(intc, INTPR0 + 4 * i, intc->saved_ipr[i]); + intc_writel(&intc0, INTPR0 + 4 * i, intc0.saved_ipr[i]); return 0; } @@ -186,27 +181,18 @@ static int intc_resume(struct sys_device *sdev) #define intc_resume NULL #endif -static struct sysdev_class intc_class = { - .name = "intc", +static struct syscore_ops intc_syscore_ops = { .suspend = intc_suspend, .resume = intc_resume, }; -static int __init intc_init_sysdev(void) +static int __init intc_init_syscore(void) { - int ret; - - ret = sysdev_class_register(&intc_class); - if (ret) - return ret; + register_syscore_ops(&intc_syscore_ops); - intc0.sysdev.id = 0; - intc0.sysdev.cls = &intc_class; - ret = sysdev_register(&intc0.sysdev); - - return ret; + return 0; } -device_initcall(intc_init_sysdev); +device_initcall(intc_init_syscore); unsigned long intc_get_pending(unsigned int group) { diff --git a/arch/blackfin/kernel/nmi.c b/arch/blackfin/kernel/nmi.c index 0b5f72f17fd..401eb1d8e3b 100644 --- a/arch/blackfin/kernel/nmi.c +++ b/arch/blackfin/kernel/nmi.c @@ -12,7 +12,7 @@ #include <linux/bitops.h> #include <linux/hardirq.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/pm.h> #include <linux/nmi.h> #include <linux/smp.h> @@ -196,43 +196,31 @@ void touch_nmi_watchdog(void) /* Suspend/resume support */ #ifdef CONFIG_PM -static int nmi_wdt_suspend(struct sys_device *dev, pm_message_t state) +static int nmi_wdt_suspend(void) { nmi_wdt_stop(); return 0; } -static int nmi_wdt_resume(struct sys_device *dev) +static void nmi_wdt_resume(void) { if (nmi_active) nmi_wdt_start(); - return 0; } -static struct sysdev_class nmi_sysclass = { - .name = DRV_NAME, +static struct syscore_ops nmi_syscore_ops = { .resume = nmi_wdt_resume, .suspend = nmi_wdt_suspend, }; -static struct sys_device device_nmi_wdt = { - .id = 0, - .cls = &nmi_sysclass, -}; - -static int __init init_nmi_wdt_sysfs(void) +static int __init init_nmi_wdt_syscore(void) { - int error; - - if (!nmi_active) - return 0; + if (nmi_active) + register_syscore_ops(&nmi_syscore_ops); - error = sysdev_class_register(&nmi_sysclass); - if (!error) - error = sysdev_register(&device_nmi_wdt); - return error; + return 0; } -late_initcall(init_nmi_wdt_sysfs); +late_initcall(init_nmi_wdt_syscore); #endif /* CONFIG_PM */ diff --git a/arch/blackfin/kernel/time-ts.c b/arch/blackfin/kernel/time-ts.c index cdb4beb6bc8..9e9b60d969d 100644 --- a/arch/blackfin/kernel/time-ts.c +++ b/arch/blackfin/kernel/time-ts.c @@ -23,29 +23,6 @@ #include <asm/gptimers.h> #include <asm/nmi.h> -/* Accelerators for sched_clock() - * convert from cycles(64bits) => nanoseconds (64bits) - * basic equation: - * ns = cycles / (freq / ns_per_sec) - * ns = cycles * (ns_per_sec / freq) - * ns = cycles * (10^9 / (cpu_khz * 10^3)) - * ns = cycles * (10^6 / cpu_khz) - * - * Then we use scaling math (suggested by george@mvista.com) to get: - * ns = cycles * (10^6 * SC / cpu_khz) / SC - * ns = cycles * cyc2ns_scale / SC - * - * And since SC is a constant power of two, we can convert the div - * into a shift. - * - * We can use khz divisor instead of mhz to keep a better precision, since - * cyc2ns_scale is limited to 10^6 * 2^10, which fits in 32 bits. - * (mathieu.desnoyers@polymtl.ca) - * - * -johnstul@us.ibm.com "math is hard, lets go shopping!" - */ - -#define CYC2NS_SCALE_FACTOR 10 /* 2^10, carefully chosen */ #if defined(CONFIG_CYCLES_CLOCKSOURCE) @@ -63,7 +40,6 @@ static struct clocksource bfin_cs_cycles = { .rating = 400, .read = bfin_read_cycles, .mask = CLOCKSOURCE_MASK(64), - .shift = CYC2NS_SCALE_FACTOR, .flags = CLOCK_SOURCE_IS_CONTINUOUS, }; @@ -75,10 +51,7 @@ static inline unsigned long long bfin_cs_cycles_sched_clock(void) static int __init bfin_cs_cycles_init(void) { - bfin_cs_cycles.mult = \ - clocksource_hz2mult(get_cclk(), bfin_cs_cycles.shift); - - if (clocksource_register(&bfin_cs_cycles)) + if (clocksource_register_hz(&bfin_cs_cycles, get_cclk())) panic("failed to register clocksource"); return 0; @@ -111,7 +84,6 @@ static struct clocksource bfin_cs_gptimer0 = { .rating = 350, .read = bfin_read_gptimer0, .mask = CLOCKSOURCE_MASK(32), - .shift = CYC2NS_SCALE_FACTOR, .flags = CLOCK_SOURCE_IS_CONTINUOUS, }; @@ -125,10 +97,7 @@ static int __init bfin_cs_gptimer0_init(void) { setup_gptimer0(); - bfin_cs_gptimer0.mult = \ - clocksource_hz2mult(get_sclk(), bfin_cs_gptimer0.shift); - - if (clocksource_register(&bfin_cs_gptimer0)) + if (clocksource_register_hz(&bfin_cs_gptimer0, get_sclk())) panic("failed to register clocksource"); return 0; diff --git a/arch/blackfin/mach-common/dpmc.c b/arch/blackfin/mach-common/dpmc.c index 382099fd556..5e4112e518a 100644 --- a/arch/blackfin/mach-common/dpmc.c +++ b/arch/blackfin/mach-common/dpmc.c @@ -19,9 +19,6 @@ #define DRIVER_NAME "bfin dpmc" -#define dprintk(msg...) \ - cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, DRIVER_NAME, msg) - struct bfin_dpmc_platform_data *pdata; /** diff --git a/arch/blackfin/mach-common/smp.c b/arch/blackfin/mach-common/smp.c index 8bce5ed031e..1fbd94c4445 100644 --- a/arch/blackfin/mach-common/smp.c +++ b/arch/blackfin/mach-common/smp.c @@ -177,6 +177,9 @@ static irqreturn_t ipi_handler_int1(int irq, void *dev_instance) while (msg_queue->count) { msg = &msg_queue->ipi_message[msg_queue->head]; switch (msg->type) { + case BFIN_IPI_RESCHEDULE: + scheduler_ipi(); + break; case BFIN_IPI_CALL_FUNC: spin_unlock_irqrestore(&msg_queue->lock, flags); ipi_call_function(cpu, msg); diff --git a/arch/cris/arch-v32/kernel/smp.c b/arch/cris/arch-v32/kernel/smp.c index 4c9e3e1ba5d..66cc75657e2 100644 --- a/arch/cris/arch-v32/kernel/smp.c +++ b/arch/cris/arch-v32/kernel/smp.c @@ -342,15 +342,18 @@ irqreturn_t crisv32_ipi_interrupt(int irq, void *dev_id) ipi = REG_RD(intr_vect, irq_regs[smp_processor_id()], rw_ipi); + if (ipi.vector & IPI_SCHEDULE) { + scheduler_ipi(); + } if (ipi.vector & IPI_CALL) { - func(info); + func(info); } if (ipi.vector & IPI_FLUSH_TLB) { - if (flush_mm == FLUSH_ALL) - __flush_tlb_all(); - else if (flush_vma == FLUSH_ALL) + if (flush_mm == FLUSH_ALL) + __flush_tlb_all(); + else if (flush_vma == FLUSH_ALL) __flush_tlb_mm(flush_mm); - else + else __flush_tlb_page(flush_vma, flush_addr); } diff --git a/arch/ia64/kernel/cpufreq/acpi-cpufreq.c b/arch/ia64/kernel/cpufreq/acpi-cpufreq.c index 22f61526a8e..f09b174244d 100644 --- a/arch/ia64/kernel/cpufreq/acpi-cpufreq.c +++ b/arch/ia64/kernel/cpufreq/acpi-cpufreq.c @@ -23,8 +23,6 @@ #include <linux/acpi.h> #include <acpi/processor.h> -#define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, "acpi-cpufreq", msg) - MODULE_AUTHOR("Venkatesh Pallipadi"); MODULE_DESCRIPTION("ACPI Processor P-States Driver"); MODULE_LICENSE("GPL"); @@ -47,12 +45,12 @@ processor_set_pstate ( { s64 retval; - dprintk("processor_set_pstate\n"); + pr_debug("processor_set_pstate\n"); retval = ia64_pal_set_pstate((u64)value); if (retval) { - dprintk("Failed to set freq to 0x%x, with error 0x%lx\n", + pr_debug("Failed to set freq to 0x%x, with error 0x%lx\n", value, retval); return -ENODEV; } @@ -67,14 +65,14 @@ processor_get_pstate ( u64 pstate_index = 0; s64 retval; - dprintk("processor_get_pstate\n"); + pr_debug("processor_get_pstate\n"); retval = ia64_pal_get_pstate(&pstate_index, PAL_GET_PSTATE_TYPE_INSTANT); *value = (u32) pstate_index; if (retval) - dprintk("Failed to get current freq with " + pr_debug("Failed to get current freq with " "error 0x%lx, idx 0x%x\n", retval, *value); return (int)retval; @@ -90,7 +88,7 @@ extract_clock ( { unsigned long i; - dprintk("extract_clock\n"); + pr_debug("extract_clock\n"); for (i = 0; i < data->acpi_data.state_count; i++) { if (value == data->acpi_data.states[i].status) @@ -110,7 +108,7 @@ processor_get_freq ( cpumask_t saved_mask; unsigned long clock_freq; - dprintk("processor_get_freq\n"); + pr_debug("processor_get_freq\n"); saved_mask = current->cpus_allowed; set_cpus_allowed_ptr(current, cpumask_of(cpu)); @@ -148,7 +146,7 @@ processor_set_freq ( cpumask_t saved_mask; int retval; - dprintk("processor_set_freq\n"); + pr_debug("processor_set_freq\n"); saved_mask = current->cpus_allowed; set_cpus_allowed_ptr(current, cpumask_of(cpu)); @@ -159,16 +157,16 @@ processor_set_freq ( if (state == data->acpi_data.state) { if (unlikely(data->resume)) { - dprintk("Called after resume, resetting to P%d\n", state); + pr_debug("Called after resume, resetting to P%d\n", state); data->resume = 0; } else { - dprintk("Already at target state (P%d)\n", state); + pr_debug("Already at target state (P%d)\n", state); retval = 0; goto migrate_end; } } - dprintk("Transitioning from P%d to P%d\n", + pr_debug("Transitioning from P%d to P%d\n", data->acpi_data.state, state); /* cpufreq frequency struct */ @@ -186,7 +184,7 @@ processor_set_freq ( value = (u32) data->acpi_data.states[state].control; - dprintk("Transitioning to state: 0x%08x\n", value); + pr_debug("Transitioning to state: 0x%08x\n", value); ret = processor_set_pstate(value); if (ret) { @@ -219,7 +217,7 @@ acpi_cpufreq_get ( { struct cpufreq_acpi_io *data = acpi_io_data[cpu]; - dprintk("acpi_cpufreq_get\n"); + pr_debug("acpi_cpufreq_get\n"); return processor_get_freq(data, cpu); } @@ -235,7 +233,7 @@ acpi_cpufreq_target ( unsigned int next_state = 0; unsigned int result = 0; - dprintk("acpi_cpufreq_setpolicy\n"); + pr_debug("acpi_cpufreq_setpolicy\n"); result = cpufreq_frequency_table_target(policy, data->freq_table, target_freq, relation, &next_state); @@ -255,7 +253,7 @@ acpi_cpufreq_verify ( unsigned int result = 0; struct cpufreq_acpi_io *data = acpi_io_data[policy->cpu]; - dprintk("acpi_cpufreq_verify\n"); + pr_debug("acpi_cpufreq_verify\n"); result = cpufreq_frequency_table_verify(policy, data->freq_table); @@ -273,7 +271,7 @@ acpi_cpufreq_cpu_init ( struct cpufreq_acpi_io *data; unsigned int result = 0; - dprintk("acpi_cpufreq_cpu_init\n"); + pr_debug("acpi_cpufreq_cpu_init\n"); data = kzalloc(sizeof(struct cpufreq_acpi_io), GFP_KERNEL); if (!data) @@ -288,7 +286,7 @@ acpi_cpufreq_cpu_init ( /* capability check */ if (data->acpi_data.state_count <= 1) { - dprintk("No P-States\n"); + pr_debug("No P-States\n"); result = -ENODEV; goto err_unreg; } @@ -297,7 +295,7 @@ acpi_cpufreq_cpu_init ( ACPI_ADR_SPACE_FIXED_HARDWARE) || (data->acpi_data.status_register.space_id != ACPI_ADR_SPACE_FIXED_HARDWARE)) { - dprintk("Unsupported address space [%d, %d]\n", + pr_debug("Unsupported address space [%d, %d]\n", (u32) (data->acpi_data.control_register.space_id), (u32) (data->acpi_data.status_register.space_id)); result = -ENODEV; @@ -348,7 +346,7 @@ acpi_cpufreq_cpu_init ( "activated.\n", cpu); for (i = 0; i < data->acpi_data.state_count; i++) - dprintk(" %cP%d: %d MHz, %d mW, %d uS, %d uS, 0x%x 0x%x\n", + pr_debug(" %cP%d: %d MHz, %d mW, %d uS, %d uS, 0x%x 0x%x\n", (i == data->acpi_data.state?'*':' '), i, (u32) data->acpi_data.states[i].core_frequency, (u32) data->acpi_data.states[i].power, @@ -383,7 +381,7 @@ acpi_cpufreq_cpu_exit ( { struct cpufreq_acpi_io *data = acpi_io_data[policy->cpu]; - dprintk("acpi_cpufreq_cpu_exit\n"); + pr_debug("acpi_cpufreq_cpu_exit\n"); if (data) { cpufreq_frequency_table_put_attr(policy->cpu); @@ -418,7 +416,7 @@ static struct cpufreq_driver acpi_cpufreq_driver = { static int __init acpi_cpufreq_init (void) { - dprintk("acpi_cpufreq_init\n"); + pr_debug("acpi_cpufreq_init\n"); return cpufreq_register_driver(&acpi_cpufreq_driver); } @@ -427,7 +425,7 @@ acpi_cpufreq_init (void) static void __exit acpi_cpufreq_exit (void) { - dprintk("acpi_cpufreq_exit\n"); + pr_debug("acpi_cpufreq_exit\n"); cpufreq_unregister_driver(&acpi_cpufreq_driver); return; diff --git a/arch/ia64/kernel/cyclone.c b/arch/ia64/kernel/cyclone.c index 1b811c61bdc..f64097b5118 100644 --- a/arch/ia64/kernel/cyclone.c +++ b/arch/ia64/kernel/cyclone.c @@ -31,8 +31,6 @@ static struct clocksource clocksource_cyclone = { .rating = 300, .read = read_cyclone, .mask = (1LL << 40) - 1, - .mult = 0, /*to be calculated*/ - .shift = 16, .flags = CLOCK_SOURCE_IS_CONTINUOUS, }; @@ -118,9 +116,7 @@ int __init init_cyclone_clock(void) /* initialize last tick */ cyclone_mc = cyclone_timer; clocksource_cyclone.fsys_mmio = cyclone_timer; - clocksource_cyclone.mult = clocksource_hz2mult(CYCLONE_TIMER_FREQ, - clocksource_cyclone.shift); - clocksource_register(&clocksource_cyclone); + clocksource_register_hz(&clocksource_cyclone, CYCLONE_TIMER_FREQ); return 0; } diff --git a/arch/ia64/kernel/irq_ia64.c b/arch/ia64/kernel/irq_ia64.c index 5b704740f16..782c3a357f2 100644 --- a/arch/ia64/kernel/irq_ia64.c +++ b/arch/ia64/kernel/irq_ia64.c @@ -31,6 +31,7 @@ #include <linux/irq.h> #include <linux/ratelimit.h> #include <linux/acpi.h> +#include <linux/sched.h> #include <asm/delay.h> #include <asm/intrinsics.h> @@ -496,6 +497,7 @@ ia64_handle_irq (ia64_vector vector, struct pt_regs *regs) smp_local_flush_tlb(); kstat_incr_irqs_this_cpu(irq, desc); } else if (unlikely(IS_RESCHEDULE(vector))) { + scheduler_ipi(); kstat_incr_irqs_this_cpu(irq, desc); } else { ia64_setreg(_IA64_REG_CR_TPR, vector); diff --git a/arch/ia64/kernel/time.c b/arch/ia64/kernel/time.c index 156ad803d5b..04440cc09b4 100644 --- a/arch/ia64/kernel/time.c +++ b/arch/ia64/kernel/time.c @@ -73,8 +73,6 @@ static struct clocksource clocksource_itc = { .rating = 350, .read = itc_get_cycles, .mask = CLOCKSOURCE_MASK(64), - .mult = 0, /*to be calculated*/ - .shift = 16, .flags = CLOCK_SOURCE_IS_CONTINUOUS, #ifdef CONFIG_PARAVIRT .resume = paravirt_clocksource_resume, @@ -365,11 +363,8 @@ ia64_init_itm (void) ia64_cpu_local_tick(); if (!itc_clocksource) { - /* Sort out mult/shift values: */ - clocksource_itc.mult = - clocksource_hz2mult(local_cpu_data->itc_freq, - clocksource_itc.shift); - clocksource_register(&clocksource_itc); + clocksource_register_hz(&clocksource_itc, + local_cpu_data->itc_freq); itc_clocksource = &clocksource_itc; } } diff --git a/arch/ia64/sn/kernel/sn2/timer.c b/arch/ia64/sn/kernel/sn2/timer.c index 21d6f09e344..c34efda122e 100644 --- a/arch/ia64/sn/kernel/sn2/timer.c +++ b/arch/ia64/sn/kernel/sn2/timer.c @@ -33,8 +33,6 @@ static struct clocksource clocksource_sn2 = { .rating = 450, .read = read_sn2, .mask = (1LL << 55) - 1, - .mult = 0, - .shift = 10, .flags = CLOCK_SOURCE_IS_CONTINUOUS, }; @@ -57,9 +55,7 @@ ia64_sn_udelay (unsigned long usecs) void __init sn_timer_init(void) { clocksource_sn2.fsys_mmio = RTC_COUNTER_ADDR; - clocksource_sn2.mult = clocksource_hz2mult(sn_rtc_cycles_per_second, - clocksource_sn2.shift); - clocksource_register(&clocksource_sn2); + clocksource_register_hz(&clocksource_sn2, sn_rtc_cycles_per_second); ia64_udelay = &ia64_sn_udelay; } diff --git a/arch/ia64/xen/irq_xen.c b/arch/ia64/xen/irq_xen.c index 108bb858acf..b279e142c63 100644 --- a/arch/ia64/xen/irq_xen.c +++ b/arch/ia64/xen/irq_xen.c @@ -92,6 +92,8 @@ static unsigned short saved_irq_cnt; static int xen_slab_ready; #ifdef CONFIG_SMP +#include <linux/sched.h> + /* Dummy stub. Though we may check XEN_RESCHEDULE_VECTOR before __do_IRQ, * it ends up to issue several memory accesses upon percpu data and * thus adds unnecessary traffic to other paths. @@ -99,7 +101,13 @@ static int xen_slab_ready; static irqreturn_t xen_dummy_handler(int irq, void *dev_id) { + return IRQ_HANDLED; +} +static irqreturn_t +xen_resched_handler(int irq, void *dev_id) +{ + scheduler_ipi(); return IRQ_HANDLED; } @@ -110,7 +118,7 @@ static struct irqaction xen_ipi_irqaction = { }; static struct irqaction xen_resched_irqaction = { - .handler = xen_dummy_handler, + .handler = xen_resched_handler, .flags = IRQF_DISABLED, .name = "resched" }; diff --git a/arch/m32r/kernel/smp.c b/arch/m32r/kernel/smp.c index 31cef20b299..fc10b39893d 100644 --- a/arch/m32r/kernel/smp.c +++ b/arch/m32r/kernel/smp.c @@ -122,8 +122,6 @@ void smp_send_reschedule(int cpu_id) * * Description: This routine executes on CPU which received * 'RESCHEDULE_IPI'. - * Rescheduling is processed at the exit of interrupt - * operation. * * Born on Date: 2002.02.05 * @@ -138,7 +136,7 @@ void smp_send_reschedule(int cpu_id) *==========================================================================*/ void smp_reschedule_interrupt(void) { - /* nothing to do */ + scheduler_ipi(); } /*==========================================================================* diff --git a/arch/m68k/atari/atakeyb.c b/arch/m68k/atari/atakeyb.c index b995513d527..95022b04b62 100644 --- a/arch/m68k/atari/atakeyb.c +++ b/arch/m68k/atari/atakeyb.c @@ -36,13 +36,10 @@ /* Hook for MIDI serial driver */ void (*atari_MIDI_interrupt_hook) (void); -/* Hook for mouse driver */ -void (*atari_mouse_interrupt_hook) (char *); /* Hook for keyboard inputdev driver */ void (*atari_input_keyboard_interrupt_hook) (unsigned char, char); /* Hook for mouse inputdev driver */ void (*atari_input_mouse_interrupt_hook) (char *); -EXPORT_SYMBOL(atari_mouse_interrupt_hook); EXPORT_SYMBOL(atari_input_keyboard_interrupt_hook); EXPORT_SYMBOL(atari_input_mouse_interrupt_hook); @@ -263,8 +260,8 @@ repeat: kb_state.buf[kb_state.len++] = scancode; if (kb_state.len == 3) { kb_state.state = KEYBOARD; - if (atari_mouse_interrupt_hook) - atari_mouse_interrupt_hook(kb_state.buf); + if (atari_input_mouse_interrupt_hook) + atari_input_mouse_interrupt_hook(kb_state.buf); } break; @@ -575,7 +572,7 @@ int atari_keyb_init(void) kb_state.len = 0; error = request_irq(IRQ_MFP_ACIA, atari_keyboard_interrupt, - IRQ_TYPE_SLOW, "keyboard/mouse/MIDI", + IRQ_TYPE_SLOW, "keyboard,mouse,MIDI", atari_keyboard_interrupt); if (error) return error; diff --git a/arch/m68k/atari/stdma.c b/arch/m68k/atari/stdma.c index 604329fafbb..ddbf43ca885 100644 --- a/arch/m68k/atari/stdma.c +++ b/arch/m68k/atari/stdma.c @@ -180,7 +180,7 @@ void __init stdma_init(void) { stdma_isr = NULL; if (request_irq(IRQ_MFP_FDC, stdma_int, IRQ_TYPE_SLOW | IRQF_SHARED, - "ST-DMA: floppy/ACSI/IDE/Falcon-SCSI", stdma_int)) + "ST-DMA floppy,ACSI,IDE,Falcon-SCSI", stdma_int)) pr_err("Couldn't register ST-DMA interrupt\n"); } diff --git a/arch/m68k/include/asm/atarikb.h b/arch/m68k/include/asm/atarikb.h index 546e7da5804..68f3622bf59 100644 --- a/arch/m68k/include/asm/atarikb.h +++ b/arch/m68k/include/asm/atarikb.h @@ -34,8 +34,6 @@ void ikbd_joystick_disable(void); /* Hook for MIDI serial driver */ extern void (*atari_MIDI_interrupt_hook) (void); -/* Hook for mouse driver */ -extern void (*atari_mouse_interrupt_hook) (char *); /* Hook for keyboard inputdev driver */ extern void (*atari_input_keyboard_interrupt_hook) (unsigned char, char); /* Hook for mouse inputdev driver */ diff --git a/arch/m68k/include/asm/bitops_mm.h b/arch/m68k/include/asm/bitops_mm.h index 9d69f6e6236..e9020f88a74 100644 --- a/arch/m68k/include/asm/bitops_mm.h +++ b/arch/m68k/include/asm/bitops_mm.h @@ -181,14 +181,15 @@ static inline int find_first_zero_bit(const unsigned long *vaddr, { const unsigned long *p = vaddr; int res = 32; + unsigned int words; unsigned long num; if (!size) return 0; - size = (size + 31) >> 5; + words = (size + 31) >> 5; while (!(num = ~*p++)) { - if (!--size) + if (!--words) goto out; } @@ -196,7 +197,8 @@ static inline int find_first_zero_bit(const unsigned long *vaddr, : "=d" (res) : "d" (num & -num)); res ^= 31; out: - return ((long)p - (long)vaddr - 4) * 8 + res; + res += ((long)p - (long)vaddr - 4) * 8; + return res < size ? res : size; } static inline int find_next_zero_bit(const unsigned long *vaddr, int size, @@ -215,27 +217,32 @@ static inline int find_next_zero_bit(const unsigned long *vaddr, int size, /* Look for zero in first longword */ __asm__ __volatile__ ("bfffo %1{#0,#0},%0" : "=d" (res) : "d" (num & -num)); - if (res < 32) - return offset + (res ^ 31); + if (res < 32) { + offset += res ^ 31; + return offset < size ? offset : size; + } offset += 32; + + if (offset >= size) + return size; } /* No zero yet, search remaining full bytes for a zero */ - res = find_first_zero_bit(p, size - ((long)p - (long)vaddr) * 8); - return offset + res; + return offset + find_first_zero_bit(p, size - offset); } static inline int find_first_bit(const unsigned long *vaddr, unsigned size) { const unsigned long *p = vaddr; int res = 32; + unsigned int words; unsigned long num; if (!size) return 0; - size = (size + 31) >> 5; + words = (size + 31) >> 5; while (!(num = *p++)) { - if (!--size) + if (!--words) goto out; } @@ -243,7 +250,8 @@ static inline int find_first_bit(const unsigned long *vaddr, unsigned size) : "=d" (res) : "d" (num & -num)); res ^= 31; out: - return ((long)p - (long)vaddr - 4) * 8 + res; + res += ((long)p - (long)vaddr - 4) * 8; + return res < size ? res : size; } static inline int find_next_bit(const unsigned long *vaddr, int size, @@ -262,13 +270,17 @@ static inline int find_next_bit(const unsigned long *vaddr, int size, /* Look for one in first longword */ __asm__ __volatile__ ("bfffo %1{#0,#0},%0" : "=d" (res) : "d" (num & -num)); - if (res < 32) - return offset + (res ^ 31); + if (res < 32) { + offset += res ^ 31; + return offset < size ? offset : size; + } offset += 32; + + if (offset >= size) + return size; } /* No one yet, search remaining full bytes for a one */ - res = find_first_bit(p, size - ((long)p - (long)vaddr) * 8); - return offset + res; + return offset + find_first_bit(p, size - offset); } /* @@ -366,23 +378,25 @@ static inline int test_bit_le(int nr, const void *vaddr) static inline int find_first_zero_bit_le(const void *vaddr, unsigned size) { const unsigned long *p = vaddr, *addr = vaddr; - int res; + int res = 0; + unsigned int words; if (!size) return 0; - size = (size >> 5) + ((size & 31) > 0); - while (*p++ == ~0UL) - { - if (--size == 0) - return (p - addr) << 5; + words = (size >> 5) + ((size & 31) > 0); + while (*p++ == ~0UL) { + if (--words == 0) + goto out; } --p; for (res = 0; res < 32; res++) if (!test_bit_le(res, p)) break; - return (p - addr) * 32 + res; +out: + res += (p - addr) * 32; + return res < size ? res : size; } static inline unsigned long find_next_zero_bit_le(const void *addr, @@ -400,10 +414,15 @@ static inline unsigned long find_next_zero_bit_le(const void *addr, offset -= bit; /* Look for zero in first longword */ for (res = bit; res < 32; res++) - if (!test_bit_le(res, p)) - return offset + res; + if (!test_bit_le(res, p)) { + offset += res; + return offset < size ? offset : size; + } p++; offset += 32; + + if (offset >= size) + return size; } /* No zero yet, search remaining full bytes for a zero */ return offset + find_first_zero_bit_le(p, size - offset); @@ -412,22 +431,25 @@ static inline unsigned long find_next_zero_bit_le(const void *addr, static inline int find_first_bit_le(const void *vaddr, unsigned size) { const unsigned long *p = vaddr, *addr = vaddr; - int res; + int res = 0; + unsigned int words; if (!size) return 0; - size = (size >> 5) + ((size & 31) > 0); + words = (size >> 5) + ((size & 31) > 0); while (*p++ == 0UL) { - if (--size == 0) - return (p - addr) << 5; + if (--words == 0) + goto out; } --p; for (res = 0; res < 32; res++) if (test_bit_le(res, p)) break; - return (p - addr) * 32 + res; +out: + res += (p - addr) * 32; + return res < size ? res : size; } static inline unsigned long find_next_bit_le(const void *addr, @@ -445,10 +467,15 @@ static inline unsigned long find_next_bit_le(const void *addr, offset -= bit; /* Look for one in first longword */ for (res = bit; res < 32; res++) - if (test_bit_le(res, p)) - return offset + res; + if (test_bit_le(res, p)) { + offset += res; + return offset < size ? offset : size; + } p++; offset += 32; + + if (offset >= size) + return size; } /* No set bit yet, search remaining full bytes for a set bit */ return offset + find_first_bit_le(p, size - offset); diff --git a/arch/m68k/include/asm/unistd.h b/arch/m68k/include/asm/unistd.h index 29e17907d9f..f3b649de2a1 100644 --- a/arch/m68k/include/asm/unistd.h +++ b/arch/m68k/include/asm/unistd.h @@ -22,7 +22,7 @@ #define __NR_mknod 14 #define __NR_chmod 15 #define __NR_chown 16 -#define __NR_break 17 +/*#define __NR_break 17*/ #define __NR_oldstat 18 #define __NR_lseek 19 #define __NR_getpid 20 @@ -36,11 +36,11 @@ #define __NR_oldfstat 28 #define __NR_pause 29 #define __NR_utime 30 -#define __NR_stty 31 -#define __NR_gtty 32 +/*#define __NR_stty 31*/ +/*#define __NR_gtty 32*/ #define __NR_access 33 #define __NR_nice 34 -#define __NR_ftime 35 +/*#define __NR_ftime 35*/ #define __NR_sync 36 #define __NR_kill 37 #define __NR_rename 38 @@ -49,7 +49,7 @@ #define __NR_dup 41 #define __NR_pipe 42 #define __NR_times 43 -#define __NR_prof 44 +/*#define __NR_prof 44*/ #define __NR_brk 45 #define __NR_setgid 46 #define __NR_getgid 47 @@ -58,13 +58,13 @@ #define __NR_getegid 50 #define __NR_acct 51 #define __NR_umount2 52 -#define __NR_lock 53 +/*#define __NR_lock 53*/ #define __NR_ioctl 54 #define __NR_fcntl 55 -#define __NR_mpx 56 +/*#define __NR_mpx 56*/ #define __NR_setpgid 57 -#define __NR_ulimit 58 -#define __NR_oldolduname 59 +/*#define __NR_ulimit 58*/ +/*#define __NR_oldolduname 59*/ #define __NR_umask 60 #define __NR_chroot 61 #define __NR_ustat 62 @@ -103,10 +103,10 @@ #define __NR_fchown 95 #define __NR_getpriority 96 #define __NR_setpriority 97 -#define __NR_profil 98 +/*#define __NR_profil 98*/ #define __NR_statfs 99 #define __NR_fstatfs 100 -#define __NR_ioperm 101 +/*#define __NR_ioperm 101*/ #define __NR_socketcall 102 #define __NR_syslog 103 #define __NR_setitimer 104 @@ -114,11 +114,11 @@ #define __NR_stat 106 #define __NR_lstat 107 #define __NR_fstat 108 -#define __NR_olduname 109 -#define __NR_iopl /* 110 */ not supported +/*#define __NR_olduname 109*/ +/*#define __NR_iopl 110*/ /* not supported */ #define __NR_vhangup 111 -#define __NR_idle /* 112 */ Obsolete -#define __NR_vm86 /* 113 */ not supported +/*#define __NR_idle 112*/ /* Obsolete */ +/*#define __NR_vm86 113*/ /* not supported */ #define __NR_wait4 114 #define __NR_swapoff 115 #define __NR_sysinfo 116 @@ -132,17 +132,17 @@ #define __NR_adjtimex 124 #define __NR_mprotect 125 #define __NR_sigprocmask 126 -#define __NR_create_module 127 +/*#define __NR_create_module 127*/ #define __NR_init_module 128 #define __NR_delete_module 129 -#define __NR_get_kernel_syms 130 +/*#define __NR_get_kernel_syms 130*/ #define __NR_quotactl 131 #define __NR_getpgid 132 #define __NR_fchdir 133 #define __NR_bdflush 134 #define __NR_sysfs 135 #define __NR_personality 136 -#define __NR_afs_syscall 137 /* Syscall for Andrew File System */ +/*#define __NR_afs_syscall 137*/ /* Syscall for Andrew File System */ #define __NR_setfsuid 138 #define __NR_setfsgid 139 #define __NR__llseek 140 @@ -172,7 +172,7 @@ #define __NR_setresuid 164 #define __NR_getresuid 165 #define __NR_getpagesize 166 -#define __NR_query_module 167 +/*#define __NR_query_module 167*/ #define __NR_poll 168 #define __NR_nfsservctl 169 #define __NR_setresgid 170 @@ -193,8 +193,8 @@ #define __NR_capset 185 #define __NR_sigaltstack 186 #define __NR_sendfile 187 -#define __NR_getpmsg 188 /* some people actually want streams */ -#define __NR_putpmsg 189 /* some people actually want streams */ +/*#define __NR_getpmsg 188*/ /* some people actually want streams */ +/*#define __NR_putpmsg 189*/ /* some people actually want streams */ #define __NR_vfork 190 #define __NR_ugetrlimit 191 #define __NR_mmap2 192 @@ -223,6 +223,8 @@ #define __NR_setfsuid32 215 #define __NR_setfsgid32 216 #define __NR_pivot_root 217 +/* 218*/ +/* 219*/ #define __NR_getdents64 220 #define __NR_gettid 221 #define __NR_tkill 222 @@ -281,7 +283,7 @@ #define __NR_mq_notify 275 #define __NR_mq_getsetattr 276 #define __NR_waitid 277 -#define __NR_vserver 278 +/*#define __NR_vserver 278*/ #define __NR_add_key 279 #define __NR_request_key 280 #define __NR_keyctl 281 diff --git a/arch/m68k/kernel/Makefile_mm b/arch/m68k/kernel/Makefile_mm index 55d5d6b680a..aced6780457 100644 --- a/arch/m68k/kernel/Makefile_mm +++ b/arch/m68k/kernel/Makefile_mm @@ -10,7 +10,7 @@ endif extra-y += vmlinux.lds obj-y := entry.o process.o traps.o ints.o signal.o ptrace.o module.o \ - sys_m68k.o time.o setup.o m68k_ksyms.o devres.o + sys_m68k.o time.o setup.o m68k_ksyms.o devres.o syscalltable.o devres-y = ../../../kernel/irq/devres.o diff --git a/arch/m68k/kernel/entry_mm.S b/arch/m68k/kernel/entry_mm.S index 1359ee65957..bd0ec05263b 100644 --- a/arch/m68k/kernel/entry_mm.S +++ b/arch/m68k/kernel/entry_mm.S @@ -407,351 +407,3 @@ resume: rts -.data -ALIGN -sys_call_table: - .long sys_restart_syscall /* 0 - old "setup()" system call, used for restarting */ - .long sys_exit - .long sys_fork - .long sys_read - .long sys_write - .long sys_open /* 5 */ - .long sys_close - .long sys_waitpid - .long sys_creat - .long sys_link - .long sys_unlink /* 10 */ - .long sys_execve - .long sys_chdir - .long sys_time - .long sys_mknod - .long sys_chmod /* 15 */ - .long sys_chown16 - .long sys_ni_syscall /* old break syscall holder */ - .long sys_stat - .long sys_lseek - .long sys_getpid /* 20 */ - .long sys_mount - .long sys_oldumount - .long sys_setuid16 - .long sys_getuid16 - .long sys_stime /* 25 */ - .long sys_ptrace - .long sys_alarm - .long sys_fstat - .long sys_pause - .long sys_utime /* 30 */ - .long sys_ni_syscall /* old stty syscall holder */ - .long sys_ni_syscall /* old gtty syscall holder */ - .long sys_access - .long sys_nice - .long sys_ni_syscall /* 35 */ /* old ftime syscall holder */ - .long sys_sync - .long sys_kill - .long sys_rename - .long sys_mkdir - .long sys_rmdir /* 40 */ - .long sys_dup - .long sys_pipe - .long sys_times - .long sys_ni_syscall /* old prof syscall holder */ - .long sys_brk /* 45 */ - .long sys_setgid16 - .long sys_getgid16 - .long sys_signal - .long sys_geteuid16 - .long sys_getegid16 /* 50 */ - .long sys_acct - .long sys_umount /* recycled never used phys() */ - .long sys_ni_syscall /* old lock syscall holder */ - .long sys_ioctl - .long sys_fcntl /* 55 */ - .long sys_ni_syscall /* old mpx syscall holder */ - .long sys_setpgid - .long sys_ni_syscall /* old ulimit syscall holder */ - .long sys_ni_syscall - .long sys_umask /* 60 */ - .long sys_chroot - .long sys_ustat - .long sys_dup2 - .long sys_getppid - .long sys_getpgrp /* 65 */ - .long sys_setsid - .long sys_sigaction - .long sys_sgetmask - .long sys_ssetmask - .long sys_setreuid16 /* 70 */ - .long sys_setregid16 - .long sys_sigsuspend - .long sys_sigpending - .long sys_sethostname - .long sys_setrlimit /* 75 */ - .long sys_old_getrlimit - .long sys_getrusage - .long sys_gettimeofday - .long sys_settimeofday - .long sys_getgroups16 /* 80 */ - .long sys_setgroups16 - .long sys_old_select - .long sys_symlink - .long sys_lstat - .long sys_readlink /* 85 */ - .long sys_uselib - .long sys_swapon - .long sys_reboot - .long sys_old_readdir - .long sys_old_mmap /* 90 */ - .long sys_munmap - .long sys_truncate - .long sys_ftruncate - .long sys_fchmod - .long sys_fchown16 /* 95 */ - .long sys_getpriority - .long sys_setpriority - .long sys_ni_syscall /* old profil syscall holder */ - .long sys_statfs - .long sys_fstatfs /* 100 */ - .long sys_ni_syscall /* ioperm for i386 */ - .long sys_socketcall - .long sys_syslog - .long sys_setitimer - .long sys_getitimer /* 105 */ - .long sys_newstat - .long sys_newlstat - .long sys_newfstat - .long sys_ni_syscall - .long sys_ni_syscall /* 110 */ /* iopl for i386 */ - .long sys_vhangup - .long sys_ni_syscall /* obsolete idle() syscall */ - .long sys_ni_syscall /* vm86old for i386 */ - .long sys_wait4 - .long sys_swapoff /* 115 */ - .long sys_sysinfo - .long sys_ipc - .long sys_fsync - .long sys_sigreturn - .long sys_clone /* 120 */ - .long sys_setdomainname - .long sys_newuname - .long sys_cacheflush /* modify_ldt for i386 */ - .long sys_adjtimex - .long sys_mprotect /* 125 */ - .long sys_sigprocmask - .long sys_ni_syscall /* old "create_module" */ - .long sys_init_module - .long sys_delete_module - .long sys_ni_syscall /* 130 - old "get_kernel_syms" */ - .long sys_quotactl - .long sys_getpgid - .long sys_fchdir - .long sys_bdflush - .long sys_sysfs /* 135 */ - .long sys_personality - .long sys_ni_syscall /* for afs_syscall */ - .long sys_setfsuid16 - .long sys_setfsgid16 - .long sys_llseek /* 140 */ - .long sys_getdents - .long sys_select - .long sys_flock - .long sys_msync - .long sys_readv /* 145 */ - .long sys_writev - .long sys_getsid - .long sys_fdatasync - .long sys_sysctl - .long sys_mlock /* 150 */ - .long sys_munlock - .long sys_mlockall - .long sys_munlockall - .long sys_sched_setparam - .long sys_sched_getparam /* 155 */ - .long sys_sched_setscheduler - .long sys_sched_getscheduler - .long sys_sched_yield - .long sys_sched_get_priority_max - .long sys_sched_get_priority_min /* 160 */ - .long sys_sched_rr_get_interval - .long sys_nanosleep - .long sys_mremap - .long sys_setresuid16 - .long sys_getresuid16 /* 165 */ - .long sys_getpagesize - .long sys_ni_syscall /* old sys_query_module */ - .long sys_poll - .long sys_nfsservctl - .long sys_setresgid16 /* 170 */ - .long sys_getresgid16 - .long sys_prctl - .long sys_rt_sigreturn - .long sys_rt_sigaction - .long sys_rt_sigprocmask /* 175 */ - .long sys_rt_sigpending - .long sys_rt_sigtimedwait - .long sys_rt_sigqueueinfo - .long sys_rt_sigsuspend - .long sys_pread64 /* 180 */ - .long sys_pwrite64 - .long sys_lchown16; - .long sys_getcwd - .long sys_capget - .long sys_capset /* 185 */ - .long sys_sigaltstack - .long sys_sendfile - .long sys_ni_syscall /* streams1 */ - .long sys_ni_syscall /* streams2 */ - .long sys_vfork /* 190 */ - .long sys_getrlimit - .long sys_mmap2 - .long sys_truncate64 - .long sys_ftruncate64 - .long sys_stat64 /* 195 */ - .long sys_lstat64 - .long sys_fstat64 - .long sys_chown - .long sys_getuid - .long sys_getgid /* 200 */ - .long sys_geteuid - .long sys_getegid - .long sys_setreuid - .long sys_setregid - .long sys_getgroups /* 205 */ - .long sys_setgroups - .long sys_fchown - .long sys_setresuid - .long sys_getresuid - .long sys_setresgid /* 210 */ - .long sys_getresgid - .long sys_lchown - .long sys_setuid - .long sys_setgid - .long sys_setfsuid /* 215 */ - .long sys_setfsgid - .long sys_pivot_root - .long sys_ni_syscall - .long sys_ni_syscall - .long sys_getdents64 /* 220 */ - .long sys_gettid - .long sys_tkill - .long sys_setxattr - .long sys_lsetxattr - .long sys_fsetxattr /* 225 */ - .long sys_getxattr - .long sys_lgetxattr - .long sys_fgetxattr - .long sys_listxattr - .long sys_llistxattr /* 230 */ - .long sys_flistxattr - .long sys_removexattr - .long sys_lremovexattr - .long sys_fremovexattr - .long sys_futex /* 235 */ - .long sys_sendfile64 - .long sys_mincore - .long sys_madvise - .long sys_fcntl64 - .long sys_readahead /* 240 */ - .long sys_io_setup - .long sys_io_destroy - .long sys_io_getevents - .long sys_io_submit - .long sys_io_cancel /* 245 */ - .long sys_fadvise64 - .long sys_exit_group - .long sys_lookup_dcookie - .long sys_epoll_create - .long sys_epoll_ctl /* 250 */ - .long sys_epoll_wait - .long sys_remap_file_pages - .long sys_set_tid_address - .long sys_timer_create - .long sys_timer_settime /* 255 */ - .long sys_timer_gettime - .long sys_timer_getoverrun - .long sys_timer_delete - .long sys_clock_settime - .long sys_clock_gettime /* 260 */ - .long sys_clock_getres - .long sys_clock_nanosleep - .long sys_statfs64 - .long sys_fstatfs64 - .long sys_tgkill /* 265 */ - .long sys_utimes - .long sys_fadvise64_64 - .long sys_mbind - .long sys_get_mempolicy - .long sys_set_mempolicy /* 270 */ - .long sys_mq_open - .long sys_mq_unlink - .long sys_mq_timedsend - .long sys_mq_timedreceive - .long sys_mq_notify /* 275 */ - .long sys_mq_getsetattr - .long sys_waitid - .long sys_ni_syscall /* for sys_vserver */ - .long sys_add_key - .long sys_request_key /* 280 */ - .long sys_keyctl - .long sys_ioprio_set - .long sys_ioprio_get - .long sys_inotify_init - .long sys_inotify_add_watch /* 285 */ - .long sys_inotify_rm_watch - .long sys_migrate_pages - .long sys_openat - .long sys_mkdirat - .long sys_mknodat /* 290 */ - .long sys_fchownat - .long sys_futimesat - .long sys_fstatat64 - .long sys_unlinkat - .long sys_renameat /* 295 */ - .long sys_linkat - .long sys_symlinkat - .long sys_readlinkat - .long sys_fchmodat - .long sys_faccessat /* 300 */ - .long sys_ni_syscall /* Reserved for pselect6 */ - .long sys_ni_syscall /* Reserved for ppoll */ - .long sys_unshare - .long sys_set_robust_list - .long sys_get_robust_list /* 305 */ - .long sys_splice - .long sys_sync_file_range - .long sys_tee - .long sys_vmsplice - .long sys_move_pages /* 310 */ - .long sys_sched_setaffinity - .long sys_sched_getaffinity - .long sys_kexec_load - .long sys_getcpu - .long sys_epoll_pwait /* 315 */ - .long sys_utimensat - .long sys_signalfd - .long sys_timerfd_create - .long sys_eventfd - .long sys_fallocate /* 320 */ - .long sys_timerfd_settime - .long sys_timerfd_gettime - .long sys_signalfd4 - .long sys_eventfd2 - .long sys_epoll_create1 /* 325 */ - .long sys_dup3 - .long sys_pipe2 - .long sys_inotify_init1 - .long sys_preadv - .long sys_pwritev /* 330 */ - .long sys_rt_tgsigqueueinfo - .long sys_perf_event_open - .long sys_get_thread_area - .long sys_set_thread_area - .long sys_atomic_cmpxchg_32 /* 335 */ - .long sys_atomic_barrier - .long sys_fanotify_init - .long sys_fanotify_mark - .long sys_prlimit64 - .long sys_name_to_handle_at /* 340 */ - .long sys_open_by_handle_at - .long sys_clock_adjtime - .long sys_syncfs - diff --git a/arch/m68k/kernel/syscalltable.S b/arch/m68k/kernel/syscalltable.S index 9b8393d8adb..5909e392cb1 100644 --- a/arch/m68k/kernel/syscalltable.S +++ b/arch/m68k/kernel/syscalltable.S @@ -1,6 +1,4 @@ /* - * linux/arch/m68knommu/kernel/syscalltable.S - * * Copyright (C) 2002, Greg Ungerer (gerg@snapgear.com) * * Based on older entry.S files, the following copyrights apply: @@ -9,171 +7,176 @@ * Kenneth Albanowski <kjahds@kjahds.com>, * Copyright (C) 2000 Lineo Inc. (www.lineo.com) * Copyright (C) 1991, 1992 Linus Torvalds + * + * Linux/m68k support by Hamish Macdonald */ #include <linux/sys.h> #include <linux/linkage.h> -#include <asm/unistd.h> -.text +#ifndef CONFIG_MMU +#define sys_mmap2 sys_mmap_pgoff +#endif + +.section .rodata ALIGN ENTRY(sys_call_table) - .long sys_restart_syscall /* 0 - old "setup()" system call */ + .long sys_restart_syscall /* 0 - old "setup()" system call, used for restarting */ .long sys_exit .long sys_fork .long sys_read .long sys_write - .long sys_open /* 5 */ + .long sys_open /* 5 */ .long sys_close .long sys_waitpid .long sys_creat .long sys_link - .long sys_unlink /* 10 */ + .long sys_unlink /* 10 */ .long sys_execve .long sys_chdir .long sys_time .long sys_mknod - .long sys_chmod /* 15 */ + .long sys_chmod /* 15 */ .long sys_chown16 - .long sys_ni_syscall /* old break syscall holder */ + .long sys_ni_syscall /* old break syscall holder */ .long sys_stat .long sys_lseek - .long sys_getpid /* 20 */ + .long sys_getpid /* 20 */ .long sys_mount .long sys_oldumount .long sys_setuid16 .long sys_getuid16 - .long sys_stime /* 25 */ + .long sys_stime /* 25 */ .long sys_ptrace .long sys_alarm .long sys_fstat .long sys_pause - .long sys_utime /* 30 */ - .long sys_ni_syscall /* old stty syscall holder */ - .long sys_ni_syscall /* old gtty syscall holder */ + .long sys_utime /* 30 */ + .long sys_ni_syscall /* old stty syscall holder */ + .long sys_ni_syscall /* old gtty syscall holder */ .long sys_access .long sys_nice - .long sys_ni_syscall /* 35 */ /* old ftime syscall holder */ + .long sys_ni_syscall /* 35 - old ftime syscall holder */ .long sys_sync .long sys_kill .long sys_rename .long sys_mkdir - .long sys_rmdir /* 40 */ + .long sys_rmdir /* 40 */ .long sys_dup .long sys_pipe .long sys_times - .long sys_ni_syscall /* old prof syscall holder */ - .long sys_brk /* 45 */ + .long sys_ni_syscall /* old prof syscall holder */ + .long sys_brk /* 45 */ .long sys_setgid16 .long sys_getgid16 .long sys_signal .long sys_geteuid16 - .long sys_getegid16 /* 50 */ + .long sys_getegid16 /* 50 */ .long sys_acct - .long sys_umount /* recycled never used phys() */ - .long sys_ni_syscall /* old lock syscall holder */ + .long sys_umount /* recycled never used phys() */ + .long sys_ni_syscall /* old lock syscall holder */ .long sys_ioctl - .long sys_fcntl /* 55 */ - .long sys_ni_syscall /* old mpx syscall holder */ + .long sys_fcntl /* 55 */ + .long sys_ni_syscall /* old mpx syscall holder */ .long sys_setpgid - .long sys_ni_syscall /* old ulimit syscall holder */ + .long sys_ni_syscall /* old ulimit syscall holder */ .long sys_ni_syscall - .long sys_umask /* 60 */ + .long sys_umask /* 60 */ .long sys_chroot .long sys_ustat .long sys_dup2 .long sys_getppid - .long sys_getpgrp /* 65 */ + .long sys_getpgrp /* 65 */ .long sys_setsid .long sys_sigaction .long sys_sgetmask .long sys_ssetmask - .long sys_setreuid16 /* 70 */ + .long sys_setreuid16 /* 70 */ .long sys_setregid16 .long sys_sigsuspend .long sys_sigpending .long sys_sethostname - .long sys_setrlimit /* 75 */ + .long sys_setrlimit /* 75 */ .long sys_old_getrlimit .long sys_getrusage .long sys_gettimeofday .long sys_settimeofday - .long sys_getgroups16 /* 80 */ + .long sys_getgroups16 /* 80 */ .long sys_setgroups16 .long sys_old_select .long sys_symlink .long sys_lstat - .long sys_readlink /* 85 */ + .long sys_readlink /* 85 */ .long sys_uselib - .long sys_ni_syscall /* sys_swapon */ + .long sys_swapon .long sys_reboot .long sys_old_readdir - .long sys_old_mmap /* 90 */ + .long sys_old_mmap /* 90 */ .long sys_munmap .long sys_truncate .long sys_ftruncate .long sys_fchmod - .long sys_fchown16 /* 95 */ + .long sys_fchown16 /* 95 */ .long sys_getpriority .long sys_setpriority - .long sys_ni_syscall /* old profil syscall holder */ + .long sys_ni_syscall /* old profil syscall holder */ .long sys_statfs - .long sys_fstatfs /* 100 */ - .long sys_ni_syscall /* ioperm for i386 */ + .long sys_fstatfs /* 100 */ + .long sys_ni_syscall /* ioperm for i386 */ .long sys_socketcall .long sys_syslog .long sys_setitimer - .long sys_getitimer /* 105 */ + .long sys_getitimer /* 105 */ .long sys_newstat .long sys_newlstat .long sys_newfstat .long sys_ni_syscall - .long sys_ni_syscall /* iopl for i386 */ /* 110 */ + .long sys_ni_syscall /* 110 - iopl for i386 */ .long sys_vhangup - .long sys_ni_syscall /* obsolete idle() syscall */ - .long sys_ni_syscall /* vm86old for i386 */ + .long sys_ni_syscall /* obsolete idle() syscall */ + .long sys_ni_syscall /* vm86old for i386 */ .long sys_wait4 - .long sys_ni_syscall /* 115 */ /* sys_swapoff */ + .long sys_swapoff /* 115 */ .long sys_sysinfo .long sys_ipc .long sys_fsync .long sys_sigreturn - .long sys_clone /* 120 */ + .long sys_clone /* 120 */ .long sys_setdomainname .long sys_newuname - .long sys_cacheflush /* modify_ldt for i386 */ + .long sys_cacheflush /* modify_ldt for i386 */ .long sys_adjtimex - .long sys_ni_syscall /* 125 */ /* sys_mprotect */ + .long sys_mprotect /* 125 */ .long sys_sigprocmask - .long sys_ni_syscall /* old "creat_module" */ + .long sys_ni_syscall /* old "create_module" */ .long sys_init_module .long sys_delete_module - .long sys_ni_syscall /* 130: old "get_kernel_syms" */ + .long sys_ni_syscall /* 130 - old "get_kernel_syms" */ .long sys_quotactl .long sys_getpgid .long sys_fchdir .long sys_bdflush - .long sys_sysfs /* 135 */ + .long sys_sysfs /* 135 */ .long sys_personality - .long sys_ni_syscall /* for afs_syscall */ + .long sys_ni_syscall /* for afs_syscall */ .long sys_setfsuid16 .long sys_setfsgid16 - .long sys_llseek /* 140 */ + .long sys_llseek /* 140 */ .long sys_getdents .long sys_select .long sys_flock - .long sys_ni_syscall /* sys_msync */ - .long sys_readv /* 145 */ + .long sys_msync + .long sys_readv /* 145 */ .long sys_writev .long sys_getsid .long sys_fdatasync .long sys_sysctl - .long sys_ni_syscall /* 150 */ /* sys_mlock */ - .long sys_ni_syscall /* sys_munlock */ - .long sys_ni_syscall /* sys_mlockall */ - .long sys_ni_syscall /* sys_munlockall */ + .long sys_mlock /* 150 */ + .long sys_munlock + .long sys_mlockall + .long sys_munlockall .long sys_sched_setparam - .long sys_sched_getparam /* 155 */ + .long sys_sched_getparam /* 155 */ .long sys_sched_setscheduler .long sys_sched_getscheduler .long sys_sched_yield @@ -181,124 +184,124 @@ ENTRY(sys_call_table) .long sys_sched_get_priority_min /* 160 */ .long sys_sched_rr_get_interval .long sys_nanosleep - .long sys_ni_syscall /* sys_mremap */ + .long sys_mremap .long sys_setresuid16 - .long sys_getresuid16 /* 165 */ - .long sys_getpagesize /* sys_getpagesize */ - .long sys_ni_syscall /* old "query_module" */ + .long sys_getresuid16 /* 165 */ + .long sys_getpagesize + .long sys_ni_syscall /* old "query_module" */ .long sys_poll - .long sys_ni_syscall /* sys_nfsservctl */ - .long sys_setresgid16 /* 170 */ + .long sys_nfsservctl + .long sys_setresgid16 /* 170 */ .long sys_getresgid16 .long sys_prctl .long sys_rt_sigreturn .long sys_rt_sigaction - .long sys_rt_sigprocmask /* 175 */ + .long sys_rt_sigprocmask /* 175 */ .long sys_rt_sigpending .long sys_rt_sigtimedwait .long sys_rt_sigqueueinfo .long sys_rt_sigsuspend - .long sys_pread64 /* 180 */ + .long sys_pread64 /* 180 */ .long sys_pwrite64 .long sys_lchown16 .long sys_getcwd .long sys_capget - .long sys_capset /* 185 */ + .long sys_capset /* 185 */ .long sys_sigaltstack .long sys_sendfile - .long sys_ni_syscall /* streams1 */ - .long sys_ni_syscall /* streams2 */ - .long sys_vfork /* 190 */ + .long sys_ni_syscall /* streams1 */ + .long sys_ni_syscall /* streams2 */ + .long sys_vfork /* 190 */ .long sys_getrlimit - .long sys_mmap_pgoff + .long sys_mmap2 .long sys_truncate64 .long sys_ftruncate64 - .long sys_stat64 /* 195 */ + .long sys_stat64 /* 195 */ .long sys_lstat64 .long sys_fstat64 .long sys_chown .long sys_getuid - .long sys_getgid /* 200 */ + .long sys_getgid /* 200 */ .long sys_geteuid .long sys_getegid .long sys_setreuid .long sys_setregid - .long sys_getgroups /* 205 */ + .long sys_getgroups /* 205 */ .long sys_setgroups .long sys_fchown .long sys_setresuid .long sys_getresuid - .long sys_setresgid /* 210 */ + .long sys_setresgid /* 210 */ .long sys_getresgid .long sys_lchown .long sys_setuid .long sys_setgid - .long sys_setfsuid /* 215 */ + .long sys_setfsuid /* 215 */ .long sys_setfsgid .long sys_pivot_root .long sys_ni_syscall .long sys_ni_syscall - .long sys_getdents64 /* 220 */ + .long sys_getdents64 /* 220 */ .long sys_gettid .long sys_tkill .long sys_setxattr .long sys_lsetxattr - .long sys_fsetxattr /* 225 */ + .long sys_fsetxattr /* 225 */ .long sys_getxattr .long sys_lgetxattr .long sys_fgetxattr .long sys_listxattr - .long sys_llistxattr /* 230 */ + .long sys_llistxattr /* 230 */ .long sys_flistxattr .long sys_removexattr .long sys_lremovexattr .long sys_fremovexattr - .long sys_futex /* 235 */ + .long sys_futex /* 235 */ .long sys_sendfile64 - .long sys_ni_syscall /* sys_mincore */ - .long sys_ni_syscall /* sys_madvise */ + .long sys_mincore + .long sys_madvise .long sys_fcntl64 - .long sys_readahead /* 240 */ + .long sys_readahead /* 240 */ .long sys_io_setup .long sys_io_destroy .long sys_io_getevents .long sys_io_submit - .long sys_io_cancel /* 245 */ + .long sys_io_cancel /* 245 */ .long sys_fadvise64 .long sys_exit_group .long sys_lookup_dcookie .long sys_epoll_create - .long sys_epoll_ctl /* 250 */ + .long sys_epoll_ctl /* 250 */ .long sys_epoll_wait - .long sys_ni_syscall /* sys_remap_file_pages */ + .long sys_remap_file_pages .long sys_set_tid_address .long sys_timer_create - .long sys_timer_settime /* 255 */ + .long sys_timer_settime /* 255 */ .long sys_timer_gettime .long sys_timer_getoverrun .long sys_timer_delete .long sys_clock_settime - .long sys_clock_gettime /* 260 */ + .long sys_clock_gettime /* 260 */ .long sys_clock_getres .long sys_clock_nanosleep .long sys_statfs64 .long sys_fstatfs64 - .long sys_tgkill /* 265 */ + .long sys_tgkill /* 265 */ .long sys_utimes .long sys_fadvise64_64 - .long sys_mbind + .long sys_mbind .long sys_get_mempolicy - .long sys_set_mempolicy /* 270 */ + .long sys_set_mempolicy /* 270 */ .long sys_mq_open .long sys_mq_unlink .long sys_mq_timedsend .long sys_mq_timedreceive - .long sys_mq_notify /* 275 */ + .long sys_mq_notify /* 275 */ .long sys_mq_getsetattr .long sys_waitid - .long sys_ni_syscall /* for sys_vserver */ + .long sys_ni_syscall /* for sys_vserver */ .long sys_add_key - .long sys_request_key /* 280 */ + .long sys_request_key /* 280 */ .long sys_keyctl .long sys_ioprio_set .long sys_ioprio_get @@ -319,8 +322,8 @@ ENTRY(sys_call_table) .long sys_readlinkat .long sys_fchmodat .long sys_faccessat /* 300 */ - .long sys_ni_syscall /* Reserved for pselect6 */ - .long sys_ni_syscall /* Reserved for ppoll */ + .long sys_pselect6 + .long sys_ppoll .long sys_unshare .long sys_set_robust_list .long sys_get_robust_list /* 305 */ @@ -363,7 +366,3 @@ ENTRY(sys_call_table) .long sys_clock_adjtime .long sys_syncfs - .rept NR_syscalls-(.-sys_call_table)/4 - .long sys_ni_syscall - .endr - diff --git a/arch/microblaze/kernel/timer.c b/arch/microblaze/kernel/timer.c index d8a214f11ac..e5550ce4e0e 100644 --- a/arch/microblaze/kernel/timer.c +++ b/arch/microblaze/kernel/timer.c @@ -217,16 +217,12 @@ static struct clocksource clocksource_microblaze = { .rating = 300, .read = microblaze_read, .mask = CLOCKSOURCE_MASK(32), - .shift = 8, /* I can shift it */ .flags = CLOCK_SOURCE_IS_CONTINUOUS, }; static int __init microblaze_clocksource_init(void) { - clocksource_microblaze.mult = - clocksource_hz2mult(timer_clock_freq, - clocksource_microblaze.shift); - if (clocksource_register(&clocksource_microblaze)) + if (clocksource_register_hz(&clocksource_microblaze, timer_clock_freq)) panic("failed to register clocksource"); /* stop timer1 */ diff --git a/arch/mips/Kbuild.platforms b/arch/mips/Kbuild.platforms index 7ff9b549204..aef6c917b45 100644 --- a/arch/mips/Kbuild.platforms +++ b/arch/mips/Kbuild.platforms @@ -11,6 +11,7 @@ platforms += dec platforms += emma platforms += jazz platforms += jz4740 +platforms += lantiq platforms += lasat platforms += loongson platforms += mipssim diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 8e256cc5dcd..cef1a854487 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -212,6 +212,24 @@ config MACH_JZ4740 select HAVE_PWM select HAVE_CLK +config LANTIQ + bool "Lantiq based platforms" + select DMA_NONCOHERENT + select IRQ_CPU + select CEVT_R4K + select CSRC_R4K + select SYS_HAS_CPU_MIPS32_R1 + select SYS_HAS_CPU_MIPS32_R2 + select SYS_SUPPORTS_BIG_ENDIAN + select SYS_SUPPORTS_32BIT_KERNEL + select SYS_SUPPORTS_MULTITHREADING + select SYS_HAS_EARLY_PRINTK + select ARCH_REQUIRE_GPIOLIB + select SWAP_IO_SPACE + select BOOT_RAW + select HAVE_CLK + select MIPS_MACHINE + config LASAT bool "LASAT Networks platforms" select CEVT_R4K @@ -736,6 +754,33 @@ config CAVIUM_OCTEON_REFERENCE_BOARD Hikari Say Y here for most Octeon reference boards. +config NLM_XLR_BOARD + bool "Netlogic XLR/XLS based systems" + depends on EXPERIMENTAL + select BOOT_ELF32 + select NLM_COMMON + select NLM_XLR + select SYS_HAS_CPU_XLR + select SYS_SUPPORTS_SMP + select HW_HAS_PCI + select SWAP_IO_SPACE + select SYS_SUPPORTS_32BIT_KERNEL + select SYS_SUPPORTS_64BIT_KERNEL + select 64BIT_PHYS_ADDR + select SYS_SUPPORTS_BIG_ENDIAN + select SYS_SUPPORTS_HIGHMEM + select DMA_COHERENT + select NR_CPUS_DEFAULT_32 + select CEVT_R4K + select CSRC_R4K + select IRQ_CPU + select ZONE_DMA if 64BIT + select SYNC_R4K + select SYS_HAS_EARLY_PRINTK + help + Support for systems based on Netlogic XLR and XLS processors. + Say Y here if you have a XLR or XLS based board. + endchoice source "arch/mips/alchemy/Kconfig" @@ -743,6 +788,7 @@ source "arch/mips/ath79/Kconfig" source "arch/mips/bcm63xx/Kconfig" source "arch/mips/jazz/Kconfig" source "arch/mips/jz4740/Kconfig" +source "arch/mips/lantiq/Kconfig" source "arch/mips/lasat/Kconfig" source "arch/mips/pmc-sierra/Kconfig" source "arch/mips/powertv/Kconfig" @@ -752,6 +798,7 @@ source "arch/mips/txx9/Kconfig" source "arch/mips/vr41xx/Kconfig" source "arch/mips/cavium-octeon/Kconfig" source "arch/mips/loongson/Kconfig" +source "arch/mips/netlogic/Kconfig" endmenu @@ -997,9 +1044,6 @@ config IRQ_GT641XX config IRQ_GIC bool -config IRQ_CPU_OCTEON - bool - config MIPS_BOARDS_GEN bool @@ -1359,8 +1403,6 @@ config CPU_SB1 config CPU_CAVIUM_OCTEON bool "Cavium Octeon processor" depends on SYS_HAS_CPU_CAVIUM_OCTEON - select IRQ_CPU - select IRQ_CPU_OCTEON select CPU_HAS_PREFETCH select CPU_SUPPORTS_64BIT_KERNEL select SYS_SUPPORTS_SMP @@ -1425,6 +1467,17 @@ config CPU_BMIPS5000 help Broadcom BMIPS5000 processors. +config CPU_XLR + bool "Netlogic XLR SoC" + depends on SYS_HAS_CPU_XLR + select CPU_SUPPORTS_32BIT_KERNEL + select CPU_SUPPORTS_64BIT_KERNEL + select CPU_SUPPORTS_HIGHMEM + select WEAK_ORDERING + select WEAK_REORDERING_BEYOND_LLSC + select CPU_SUPPORTS_HUGEPAGES + help + Netlogic Microsystems XLR/XLS processors. endchoice if CPU_LOONGSON2F @@ -1555,6 +1608,9 @@ config SYS_HAS_CPU_BMIPS4380 config SYS_HAS_CPU_BMIPS5000 bool +config SYS_HAS_CPU_XLR + bool + # # CPU may reorder R->R, R->W, W->R, W->W # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC @@ -2339,6 +2395,7 @@ config MMU config I8253 bool + select CLKSRC_I8253 select MIPS_EXTERNAL_TIMER config ZONE_DMA32 diff --git a/arch/mips/Makefile b/arch/mips/Makefile index 53e3514ba10..884819cd060 100644 --- a/arch/mips/Makefile +++ b/arch/mips/Makefile @@ -191,6 +191,18 @@ endif # include $(srctree)/arch/mips/Kbuild.platforms +# +# NETLOGIC SOC Common (common) +# +cflags-$(CONFIG_NLM_COMMON) += -I$(srctree)/arch/mips/include/asm/mach-netlogic +cflags-$(CONFIG_NLM_COMMON) += -I$(srctree)/arch/mips/include/asm/netlogic + +# +# NETLOGIC XLR/XLS SoC, Simulator and boards +# +core-$(CONFIG_NLM_XLR) += arch/mips/netlogic/xlr/ +load-$(CONFIG_NLM_XLR_BOARD) += 0xffffffff84000000 + cflags-y += -I$(srctree)/arch/mips/include/asm/mach-generic drivers-$(CONFIG_PCI) += arch/mips/pci/ diff --git a/arch/mips/alchemy/common/dbdma.c b/arch/mips/alchemy/common/dbdma.c index ca0506a8585..3a5abb54d50 100644 --- a/arch/mips/alchemy/common/dbdma.c +++ b/arch/mips/alchemy/common/dbdma.c @@ -36,7 +36,7 @@ #include <linux/spinlock.h> #include <linux/interrupt.h> #include <linux/module.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <asm/mach-au1x00/au1000.h> #include <asm/mach-au1x00/au1xxx_dbdma.h> @@ -58,7 +58,8 @@ static DEFINE_SPINLOCK(au1xxx_dbdma_spin_lock); /* I couldn't find a macro that did this... */ #define ALIGN_ADDR(x, a) ((((u32)(x)) + (a-1)) & ~(a-1)) -static dbdma_global_t *dbdma_gptr = (dbdma_global_t *)DDMA_GLOBAL_BASE; +static dbdma_global_t *dbdma_gptr = + (dbdma_global_t *)KSEG1ADDR(AU1550_DBDMA_CONF_PHYS_ADDR); static int dbdma_initialized; static dbdev_tab_t dbdev_tab[] = { @@ -299,7 +300,7 @@ u32 au1xxx_dbdma_chan_alloc(u32 srcid, u32 destid, if (ctp != NULL) { memset(ctp, 0, sizeof(chan_tab_t)); ctp->chan_index = chan = i; - dcp = DDMA_CHANNEL_BASE; + dcp = KSEG1ADDR(AU1550_DBDMA_PHYS_ADDR); dcp += (0x0100 * chan); ctp->chan_ptr = (au1x_dma_chan_t *)dcp; cp = (au1x_dma_chan_t *)dcp; @@ -958,105 +959,75 @@ u32 au1xxx_dbdma_put_dscr(u32 chanid, au1x_ddma_desc_t *dscr) } -struct alchemy_dbdma_sysdev { - struct sys_device sysdev; - u32 pm_regs[NUM_DBDMA_CHANS + 1][6]; -}; +static unsigned long alchemy_dbdma_pm_data[NUM_DBDMA_CHANS + 1][6]; -static int alchemy_dbdma_suspend(struct sys_device *dev, - pm_message_t state) +static int alchemy_dbdma_suspend(void) { - struct alchemy_dbdma_sysdev *sdev = - container_of(dev, struct alchemy_dbdma_sysdev, sysdev); int i; - u32 addr; + void __iomem *addr; - addr = DDMA_GLOBAL_BASE; - sdev->pm_regs[0][0] = au_readl(addr + 0x00); - sdev->pm_regs[0][1] = au_readl(addr + 0x04); - sdev->pm_regs[0][2] = au_readl(addr + 0x08); - sdev->pm_regs[0][3] = au_readl(addr + 0x0c); + addr = (void __iomem *)KSEG1ADDR(AU1550_DBDMA_CONF_PHYS_ADDR); + alchemy_dbdma_pm_data[0][0] = __raw_readl(addr + 0x00); + alchemy_dbdma_pm_data[0][1] = __raw_readl(addr + 0x04); + alchemy_dbdma_pm_data[0][2] = __raw_readl(addr + 0x08); + alchemy_dbdma_pm_data[0][3] = __raw_readl(addr + 0x0c); /* save channel configurations */ - for (i = 1, addr = DDMA_CHANNEL_BASE; i <= NUM_DBDMA_CHANS; i++) { - sdev->pm_regs[i][0] = au_readl(addr + 0x00); - sdev->pm_regs[i][1] = au_readl(addr + 0x04); - sdev->pm_regs[i][2] = au_readl(addr + 0x08); - sdev->pm_regs[i][3] = au_readl(addr + 0x0c); - sdev->pm_regs[i][4] = au_readl(addr + 0x10); - sdev->pm_regs[i][5] = au_readl(addr + 0x14); + addr = (void __iomem *)KSEG1ADDR(AU1550_DBDMA_PHYS_ADDR); + for (i = 1; i <= NUM_DBDMA_CHANS; i++) { + alchemy_dbdma_pm_data[i][0] = __raw_readl(addr + 0x00); + alchemy_dbdma_pm_data[i][1] = __raw_readl(addr + 0x04); + alchemy_dbdma_pm_data[i][2] = __raw_readl(addr + 0x08); + alchemy_dbdma_pm_data[i][3] = __raw_readl(addr + 0x0c); + alchemy_dbdma_pm_data[i][4] = __raw_readl(addr + 0x10); + alchemy_dbdma_pm_data[i][5] = __raw_readl(addr + 0x14); /* halt channel */ - au_writel(sdev->pm_regs[i][0] & ~1, addr + 0x00); - au_sync(); - while (!(au_readl(addr + 0x14) & 1)) - au_sync(); + __raw_writel(alchemy_dbdma_pm_data[i][0] & ~1, addr + 0x00); + wmb(); + while (!(__raw_readl(addr + 0x14) & 1)) + wmb(); addr += 0x100; /* next channel base */ } /* disable channel interrupts */ - au_writel(0, DDMA_GLOBAL_BASE + 0x0c); - au_sync(); + addr = (void __iomem *)KSEG1ADDR(AU1550_DBDMA_CONF_PHYS_ADDR); + __raw_writel(0, addr + 0x0c); + wmb(); return 0; } -static int alchemy_dbdma_resume(struct sys_device *dev) +static void alchemy_dbdma_resume(void) { - struct alchemy_dbdma_sysdev *sdev = - container_of(dev, struct alchemy_dbdma_sysdev, sysdev); int i; - u32 addr; + void __iomem *addr; - addr = DDMA_GLOBAL_BASE; - au_writel(sdev->pm_regs[0][0], addr + 0x00); - au_writel(sdev->pm_regs[0][1], addr + 0x04); - au_writel(sdev->pm_regs[0][2], addr + 0x08); - au_writel(sdev->pm_regs[0][3], addr + 0x0c); + addr = (void __iomem *)KSEG1ADDR(AU1550_DBDMA_CONF_PHYS_ADDR); + __raw_writel(alchemy_dbdma_pm_data[0][0], addr + 0x00); + __raw_writel(alchemy_dbdma_pm_data[0][1], addr + 0x04); + __raw_writel(alchemy_dbdma_pm_data[0][2], addr + 0x08); + __raw_writel(alchemy_dbdma_pm_data[0][3], addr + 0x0c); /* restore channel configurations */ - for (i = 1, addr = DDMA_CHANNEL_BASE; i <= NUM_DBDMA_CHANS; i++) { - au_writel(sdev->pm_regs[i][0], addr + 0x00); - au_writel(sdev->pm_regs[i][1], addr + 0x04); - au_writel(sdev->pm_regs[i][2], addr + 0x08); - au_writel(sdev->pm_regs[i][3], addr + 0x0c); - au_writel(sdev->pm_regs[i][4], addr + 0x10); - au_writel(sdev->pm_regs[i][5], addr + 0x14); - au_sync(); + addr = (void __iomem *)KSEG1ADDR(AU1550_DBDMA_PHYS_ADDR); + for (i = 1; i <= NUM_DBDMA_CHANS; i++) { + __raw_writel(alchemy_dbdma_pm_data[i][0], addr + 0x00); + __raw_writel(alchemy_dbdma_pm_data[i][1], addr + 0x04); + __raw_writel(alchemy_dbdma_pm_data[i][2], addr + 0x08); + __raw_writel(alchemy_dbdma_pm_data[i][3], addr + 0x0c); + __raw_writel(alchemy_dbdma_pm_data[i][4], addr + 0x10); + __raw_writel(alchemy_dbdma_pm_data[i][5], addr + 0x14); + wmb(); addr += 0x100; /* next channel base */ } - - return 0; } -static struct sysdev_class alchemy_dbdma_sysdev_class = { - .name = "dbdma", +static struct syscore_ops alchemy_dbdma_syscore_ops = { .suspend = alchemy_dbdma_suspend, .resume = alchemy_dbdma_resume, }; -static int __init alchemy_dbdma_sysdev_init(void) -{ - struct alchemy_dbdma_sysdev *sdev; - int ret; - - ret = sysdev_class_register(&alchemy_dbdma_sysdev_class); - if (ret) - return ret; - - sdev = kzalloc(sizeof(struct alchemy_dbdma_sysdev), GFP_KERNEL); - if (!sdev) - return -ENOMEM; - - sdev->sysdev.id = -1; - sdev->sysdev.cls = &alchemy_dbdma_sysdev_class; - ret = sysdev_register(&sdev->sysdev); - if (ret) - kfree(sdev); - - return ret; -} - static int __init au1xxx_dbdma_init(void) { int irq_nr, ret; @@ -1084,11 +1055,7 @@ static int __init au1xxx_dbdma_init(void) else { dbdma_initialized = 1; printk(KERN_INFO "Alchemy DBDMA initialized\n"); - ret = alchemy_dbdma_sysdev_init(); - if (ret) { - printk(KERN_ERR "DBDMA PM init failed\n"); - ret = 0; - } + register_syscore_ops(&alchemy_dbdma_syscore_ops); } return ret; diff --git a/arch/mips/alchemy/common/dma.c b/arch/mips/alchemy/common/dma.c index d5278877891..347980e79a8 100644 --- a/arch/mips/alchemy/common/dma.c +++ b/arch/mips/alchemy/common/dma.c @@ -58,6 +58,9 @@ * returned from request_dma. */ +/* DMA Channel register block spacing */ +#define DMA_CHANNEL_LEN 0x00000100 + DEFINE_SPINLOCK(au1000_dma_spin_lock); struct dma_chan au1000_dma_table[NUM_AU1000_DMA_CHANNELS] = { @@ -77,22 +80,23 @@ static const struct dma_dev { unsigned int fifo_addr; unsigned int dma_mode; } dma_dev_table[DMA_NUM_DEV] = { - {UART0_ADDR + UART_TX, 0}, - {UART0_ADDR + UART_RX, 0}, - {0, 0}, - {0, 0}, - {AC97C_DATA, DMA_DW16 }, /* coherent */ - {AC97C_DATA, DMA_DR | DMA_DW16 }, /* coherent */ - {UART3_ADDR + UART_TX, DMA_DW8 | DMA_NC}, - {UART3_ADDR + UART_RX, DMA_DR | DMA_DW8 | DMA_NC}, - {USBD_EP0RD, DMA_DR | DMA_DW8 | DMA_NC}, - {USBD_EP0WR, DMA_DW8 | DMA_NC}, - {USBD_EP2WR, DMA_DW8 | DMA_NC}, - {USBD_EP3WR, DMA_DW8 | DMA_NC}, - {USBD_EP4RD, DMA_DR | DMA_DW8 | DMA_NC}, - {USBD_EP5RD, DMA_DR | DMA_DW8 | DMA_NC}, - {I2S_DATA, DMA_DW32 | DMA_NC}, - {I2S_DATA, DMA_DR | DMA_DW32 | DMA_NC} + { AU1000_UART0_PHYS_ADDR + 0x04, DMA_DW8 }, /* UART0_TX */ + { AU1000_UART0_PHYS_ADDR + 0x00, DMA_DW8 | DMA_DR }, /* UART0_RX */ + { 0, 0 }, /* DMA_REQ0 */ + { 0, 0 }, /* DMA_REQ1 */ + { AU1000_AC97_PHYS_ADDR + 0x08, DMA_DW16 }, /* AC97 TX c */ + { AU1000_AC97_PHYS_ADDR + 0x08, DMA_DW16 | DMA_DR }, /* AC97 RX c */ + { AU1000_UART3_PHYS_ADDR + 0x04, DMA_DW8 | DMA_NC }, /* UART3_TX */ + { AU1000_UART3_PHYS_ADDR + 0x00, DMA_DW8 | DMA_NC | DMA_DR }, /* UART3_RX */ + { AU1000_USBD_PHYS_ADDR + 0x00, DMA_DW8 | DMA_NC | DMA_DR }, /* EP0RD */ + { AU1000_USBD_PHYS_ADDR + 0x04, DMA_DW8 | DMA_NC }, /* EP0WR */ + { AU1000_USBD_PHYS_ADDR + 0x08, DMA_DW8 | DMA_NC }, /* EP2WR */ + { AU1000_USBD_PHYS_ADDR + 0x0c, DMA_DW8 | DMA_NC }, /* EP3WR */ + { AU1000_USBD_PHYS_ADDR + 0x10, DMA_DW8 | DMA_NC | DMA_DR }, /* EP4RD */ + { AU1000_USBD_PHYS_ADDR + 0x14, DMA_DW8 | DMA_NC | DMA_DR }, /* EP5RD */ + /* on Au1500, these 2 are DMA_REQ2/3 (GPIO208/209) instead! */ + { AU1000_I2S_PHYS_ADDR + 0x00, DMA_DW32 | DMA_NC}, /* I2S TX */ + { AU1000_I2S_PHYS_ADDR + 0x00, DMA_DW32 | DMA_NC | DMA_DR}, /* I2S RX */ }; int au1000_dma_read_proc(char *buf, char **start, off_t fpos, @@ -123,10 +127,10 @@ int au1000_dma_read_proc(char *buf, char **start, off_t fpos, /* Device FIFO addresses and default DMA modes - 2nd bank */ static const struct dma_dev dma_dev_table_bank2[DMA_NUM_DEV_BANK2] = { - { SD0_XMIT_FIFO, DMA_DS | DMA_DW8 }, /* coherent */ - { SD0_RECV_FIFO, DMA_DS | DMA_DR | DMA_DW8 }, /* coherent */ - { SD1_XMIT_FIFO, DMA_DS | DMA_DW8 }, /* coherent */ - { SD1_RECV_FIFO, DMA_DS | DMA_DR | DMA_DW8 } /* coherent */ + { AU1100_SD0_PHYS_ADDR + 0x00, DMA_DS | DMA_DW8 }, /* coherent */ + { AU1100_SD0_PHYS_ADDR + 0x04, DMA_DS | DMA_DW8 | DMA_DR }, /* coherent */ + { AU1100_SD1_PHYS_ADDR + 0x00, DMA_DS | DMA_DW8 }, /* coherent */ + { AU1100_SD1_PHYS_ADDR + 0x04, DMA_DS | DMA_DW8 | DMA_DR } /* coherent */ }; void dump_au1000_dma_channel(unsigned int dmanr) @@ -202,7 +206,7 @@ int request_au1000_dma(int dev_id, const char *dev_str, } /* fill it in */ - chan->io = DMA_CHANNEL_BASE + i * DMA_CHANNEL_LEN; + chan->io = KSEG1ADDR(AU1000_DMA_PHYS_ADDR) + i * DMA_CHANNEL_LEN; chan->dev_id = dev_id; chan->dev_str = dev_str; chan->fifo_addr = dev->fifo_addr; diff --git a/arch/mips/alchemy/common/irq.c b/arch/mips/alchemy/common/irq.c index 55dd7c88851..8b60ba0675e 100644 --- a/arch/mips/alchemy/common/irq.c +++ b/arch/mips/alchemy/common/irq.c @@ -30,7 +30,7 @@ #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/slab.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <asm/irq_cpu.h> #include <asm/mipsregs.h> @@ -39,6 +39,36 @@ #include <asm/mach-pb1x00/pb1000.h> #endif +/* Interrupt Controller register offsets */ +#define IC_CFG0RD 0x40 +#define IC_CFG0SET 0x40 +#define IC_CFG0CLR 0x44 +#define IC_CFG1RD 0x48 +#define IC_CFG1SET 0x48 +#define IC_CFG1CLR 0x4C +#define IC_CFG2RD 0x50 +#define IC_CFG2SET 0x50 +#define IC_CFG2CLR 0x54 +#define IC_REQ0INT 0x54 +#define IC_SRCRD 0x58 +#define IC_SRCSET 0x58 +#define IC_SRCCLR 0x5C +#define IC_REQ1INT 0x5C +#define IC_ASSIGNRD 0x60 +#define IC_ASSIGNSET 0x60 +#define IC_ASSIGNCLR 0x64 +#define IC_WAKERD 0x68 +#define IC_WAKESET 0x68 +#define IC_WAKECLR 0x6C +#define IC_MASKRD 0x70 +#define IC_MASKSET 0x70 +#define IC_MASKCLR 0x74 +#define IC_RISINGRD 0x78 +#define IC_RISINGCLR 0x78 +#define IC_FALLINGRD 0x7C +#define IC_FALLINGCLR 0x7C +#define IC_TESTBIT 0x80 + static int au1x_ic_settype(struct irq_data *d, unsigned int flow_type); /* NOTE on interrupt priorities: The original writers of this code said: @@ -221,89 +251,101 @@ struct au1xxx_irqmap au1200_irqmap[] __initdata = { static void au1x_ic0_unmask(struct irq_data *d) { unsigned int bit = d->irq - AU1000_INTC0_INT_BASE; - au_writel(1 << bit, IC0_MASKSET); - au_writel(1 << bit, IC0_WAKESET); - au_sync(); + void __iomem *base = (void __iomem *)KSEG1ADDR(AU1000_IC0_PHYS_ADDR); + + __raw_writel(1 << bit, base + IC_MASKSET); + __raw_writel(1 << bit, base + IC_WAKESET); + wmb(); } static void au1x_ic1_unmask(struct irq_data *d) { unsigned int bit = d->irq - AU1000_INTC1_INT_BASE; - au_writel(1 << bit, IC1_MASKSET); - au_writel(1 << bit, IC1_WAKESET); + void __iomem *base = (void __iomem *)KSEG1ADDR(AU1000_IC1_PHYS_ADDR); + + __raw_writel(1 << bit, base + IC_MASKSET); + __raw_writel(1 << bit, base + IC_WAKESET); /* very hacky. does the pb1000 cpld auto-disable this int? * nowhere in the current kernel sources is it disabled. --mlau */ #if defined(CONFIG_MIPS_PB1000) if (d->irq == AU1000_GPIO15_INT) - au_writel(0x4000, PB1000_MDR); /* enable int */ + __raw_writel(0x4000, (void __iomem *)PB1000_MDR); /* enable int */ #endif - au_sync(); + wmb(); } static void au1x_ic0_mask(struct irq_data *d) { unsigned int bit = d->irq - AU1000_INTC0_INT_BASE; - au_writel(1 << bit, IC0_MASKCLR); - au_writel(1 << bit, IC0_WAKECLR); - au_sync(); + void __iomem *base = (void __iomem *)KSEG1ADDR(AU1000_IC0_PHYS_ADDR); + + __raw_writel(1 << bit, base + IC_MASKCLR); + __raw_writel(1 << bit, base + IC_WAKECLR); + wmb(); } static void au1x_ic1_mask(struct irq_data *d) { unsigned int bit = d->irq - AU1000_INTC1_INT_BASE; - au_writel(1 << bit, IC1_MASKCLR); - au_writel(1 << bit, IC1_WAKECLR); - au_sync(); + void __iomem *base = (void __iomem *)KSEG1ADDR(AU1000_IC1_PHYS_ADDR); + + __raw_writel(1 << bit, base + IC_MASKCLR); + __raw_writel(1 << bit, base + IC_WAKECLR); + wmb(); } static void au1x_ic0_ack(struct irq_data *d) { unsigned int bit = d->irq - AU1000_INTC0_INT_BASE; + void __iomem *base = (void __iomem *)KSEG1ADDR(AU1000_IC0_PHYS_ADDR); /* * This may assume that we don't get interrupts from * both edges at once, or if we do, that we don't care. */ - au_writel(1 << bit, IC0_FALLINGCLR); - au_writel(1 << bit, IC0_RISINGCLR); - au_sync(); + __raw_writel(1 << bit, base + IC_FALLINGCLR); + __raw_writel(1 << bit, base + IC_RISINGCLR); + wmb(); } static void au1x_ic1_ack(struct irq_data *d) { unsigned int bit = d->irq - AU1000_INTC1_INT_BASE; + void __iomem *base = (void __iomem *)KSEG1ADDR(AU1000_IC1_PHYS_ADDR); /* * This may assume that we don't get interrupts from * both edges at once, or if we do, that we don't care. */ - au_writel(1 << bit, IC1_FALLINGCLR); - au_writel(1 << bit, IC1_RISINGCLR); - au_sync(); + __raw_writel(1 << bit, base + IC_FALLINGCLR); + __raw_writel(1 << bit, base + IC_RISINGCLR); + wmb(); } static void au1x_ic0_maskack(struct irq_data *d) { unsigned int bit = d->irq - AU1000_INTC0_INT_BASE; + void __iomem *base = (void __iomem *)KSEG1ADDR(AU1000_IC0_PHYS_ADDR); - au_writel(1 << bit, IC0_WAKECLR); - au_writel(1 << bit, IC0_MASKCLR); - au_writel(1 << bit, IC0_RISINGCLR); - au_writel(1 << bit, IC0_FALLINGCLR); - au_sync(); + __raw_writel(1 << bit, base + IC_WAKECLR); + __raw_writel(1 << bit, base + IC_MASKCLR); + __raw_writel(1 << bit, base + IC_RISINGCLR); + __raw_writel(1 << bit, base + IC_FALLINGCLR); + wmb(); } static void au1x_ic1_maskack(struct irq_data *d) { unsigned int bit = d->irq - AU1000_INTC1_INT_BASE; + void __iomem *base = (void __iomem *)KSEG1ADDR(AU1000_IC1_PHYS_ADDR); - au_writel(1 << bit, IC1_WAKECLR); - au_writel(1 << bit, IC1_MASKCLR); - au_writel(1 << bit, IC1_RISINGCLR); - au_writel(1 << bit, IC1_FALLINGCLR); - au_sync(); + __raw_writel(1 << bit, base + IC_WAKECLR); + __raw_writel(1 << bit, base + IC_MASKCLR); + __raw_writel(1 << bit, base + IC_RISINGCLR); + __raw_writel(1 << bit, base + IC_FALLINGCLR); + wmb(); } static int au1x_ic1_setwake(struct irq_data *d, unsigned int on) @@ -318,13 +360,13 @@ static int au1x_ic1_setwake(struct irq_data *d, unsigned int on) return -EINVAL; local_irq_save(flags); - wakemsk = au_readl(SYS_WAKEMSK); + wakemsk = __raw_readl((void __iomem *)SYS_WAKEMSK); if (on) wakemsk |= 1 << bit; else wakemsk &= ~(1 << bit); - au_writel(wakemsk, SYS_WAKEMSK); - au_sync(); + __raw_writel(wakemsk, (void __iomem *)SYS_WAKEMSK); + wmb(); local_irq_restore(flags); return 0; @@ -356,81 +398,74 @@ static struct irq_chip au1x_ic1_chip = { static int au1x_ic_settype(struct irq_data *d, unsigned int flow_type) { struct irq_chip *chip; - unsigned long icr[6]; - unsigned int bit, ic, irq = d->irq; + unsigned int bit, irq = d->irq; irq_flow_handler_t handler = NULL; unsigned char *name = NULL; + void __iomem *base; int ret; if (irq >= AU1000_INTC1_INT_BASE) { bit = irq - AU1000_INTC1_INT_BASE; chip = &au1x_ic1_chip; - ic = 1; + base = (void __iomem *)KSEG1ADDR(AU1000_IC1_PHYS_ADDR); } else { bit = irq - AU1000_INTC0_INT_BASE; chip = &au1x_ic0_chip; - ic = 0; + base = (void __iomem *)KSEG1ADDR(AU1000_IC0_PHYS_ADDR); } if (bit > 31) return -EINVAL; - icr[0] = ic ? IC1_CFG0SET : IC0_CFG0SET; - icr[1] = ic ? IC1_CFG1SET : IC0_CFG1SET; - icr[2] = ic ? IC1_CFG2SET : IC0_CFG2SET; - icr[3] = ic ? IC1_CFG0CLR : IC0_CFG0CLR; - icr[4] = ic ? IC1_CFG1CLR : IC0_CFG1CLR; - icr[5] = ic ? IC1_CFG2CLR : IC0_CFG2CLR; - ret = 0; switch (flow_type) { /* cfgregs 2:1:0 */ case IRQ_TYPE_EDGE_RISING: /* 0:0:1 */ - au_writel(1 << bit, icr[5]); - au_writel(1 << bit, icr[4]); - au_writel(1 << bit, icr[0]); + __raw_writel(1 << bit, base + IC_CFG2CLR); + __raw_writel(1 << bit, base + IC_CFG1CLR); + __raw_writel(1 << bit, base + IC_CFG0SET); handler = handle_edge_irq; name = "riseedge"; break; case IRQ_TYPE_EDGE_FALLING: /* 0:1:0 */ - au_writel(1 << bit, icr[5]); - au_writel(1 << bit, icr[1]); - au_writel(1 << bit, icr[3]); + __raw_writel(1 << bit, base + IC_CFG2CLR); + __raw_writel(1 << bit, base + IC_CFG1SET); + __raw_writel(1 << bit, base + IC_CFG0CLR); handler = handle_edge_irq; name = "falledge"; break; case IRQ_TYPE_EDGE_BOTH: /* 0:1:1 */ - au_writel(1 << bit, icr[5]); - au_writel(1 << bit, icr[1]); - au_writel(1 << bit, icr[0]); + __raw_writel(1 << bit, base + IC_CFG2CLR); + __raw_writel(1 << bit, base + IC_CFG1SET); + __raw_writel(1 << bit, base + IC_CFG0SET); handler = handle_edge_irq; name = "bothedge"; break; case IRQ_TYPE_LEVEL_HIGH: /* 1:0:1 */ - au_writel(1 << bit, icr[2]); - au_writel(1 << bit, icr[4]); - au_writel(1 << bit, icr[0]); + __raw_writel(1 << bit, base + IC_CFG2SET); + __raw_writel(1 << bit, base + IC_CFG1CLR); + __raw_writel(1 << bit, base + IC_CFG0SET); handler = handle_level_irq; name = "hilevel"; break; case IRQ_TYPE_LEVEL_LOW: /* 1:1:0 */ - au_writel(1 << bit, icr[2]); - au_writel(1 << bit, icr[1]); - au_writel(1 << bit, icr[3]); + __raw_writel(1 << bit, base + IC_CFG2SET); + __raw_writel(1 << bit, base + IC_CFG1SET); + __raw_writel(1 << bit, base + IC_CFG0CLR); handler = handle_level_irq; name = "lowlevel"; break; case IRQ_TYPE_NONE: /* 0:0:0 */ - au_writel(1 << bit, icr[5]); - au_writel(1 << bit, icr[4]); - au_writel(1 << bit, icr[3]); + __raw_writel(1 << bit, base + IC_CFG2CLR); + __raw_writel(1 << bit, base + IC_CFG1CLR); + __raw_writel(1 << bit, base + IC_CFG0CLR); break; default: ret = -EINVAL; } __irq_set_chip_handler_name_locked(d->irq, chip, handler, name); - au_sync(); + wmb(); return ret; } @@ -444,21 +479,21 @@ asmlinkage void plat_irq_dispatch(void) off = MIPS_CPU_IRQ_BASE + 7; goto handle; } else if (pending & CAUSEF_IP2) { - s = IC0_REQ0INT; + s = KSEG1ADDR(AU1000_IC0_PHYS_ADDR) + IC_REQ0INT; off = AU1000_INTC0_INT_BASE; } else if (pending & CAUSEF_IP3) { - s = IC0_REQ1INT; + s = KSEG1ADDR(AU1000_IC0_PHYS_ADDR) + IC_REQ1INT; off = AU1000_INTC0_INT_BASE; } else if (pending & CAUSEF_IP4) { - s = IC1_REQ0INT; + s = KSEG1ADDR(AU1000_IC1_PHYS_ADDR) + IC_REQ0INT; off = AU1000_INTC1_INT_BASE; } else if (pending & CAUSEF_IP5) { - s = IC1_REQ1INT; + s = KSEG1ADDR(AU1000_IC1_PHYS_ADDR) + IC_REQ1INT; off = AU1000_INTC1_INT_BASE; } else goto spurious; - s = au_readl(s); + s = __raw_readl((void __iomem *)s); if (unlikely(!s)) { spurious: spurious_interrupt(); @@ -469,48 +504,42 @@ handle: do_IRQ(off); } + +static inline void ic_init(void __iomem *base) +{ + /* initialize interrupt controller to a safe state */ + __raw_writel(0xffffffff, base + IC_CFG0CLR); + __raw_writel(0xffffffff, base + IC_CFG1CLR); + __raw_writel(0xffffffff, base + IC_CFG2CLR); + __raw_writel(0xffffffff, base + IC_MASKCLR); + __raw_writel(0xffffffff, base + IC_ASSIGNCLR); + __raw_writel(0xffffffff, base + IC_WAKECLR); + __raw_writel(0xffffffff, base + IC_SRCSET); + __raw_writel(0xffffffff, base + IC_FALLINGCLR); + __raw_writel(0xffffffff, base + IC_RISINGCLR); + __raw_writel(0x00000000, base + IC_TESTBIT); + wmb(); +} + static void __init au1000_init_irq(struct au1xxx_irqmap *map) { unsigned int bit, irq_nr; - int i; - - /* - * Initialize interrupt controllers to a safe state. - */ - au_writel(0xffffffff, IC0_CFG0CLR); - au_writel(0xffffffff, IC0_CFG1CLR); - au_writel(0xffffffff, IC0_CFG2CLR); - au_writel(0xffffffff, IC0_MASKCLR); - au_writel(0xffffffff, IC0_ASSIGNCLR); - au_writel(0xffffffff, IC0_WAKECLR); - au_writel(0xffffffff, IC0_SRCSET); - au_writel(0xffffffff, IC0_FALLINGCLR); - au_writel(0xffffffff, IC0_RISINGCLR); - au_writel(0x00000000, IC0_TESTBIT); - - au_writel(0xffffffff, IC1_CFG0CLR); - au_writel(0xffffffff, IC1_CFG1CLR); - au_writel(0xffffffff, IC1_CFG2CLR); - au_writel(0xffffffff, IC1_MASKCLR); - au_writel(0xffffffff, IC1_ASSIGNCLR); - au_writel(0xffffffff, IC1_WAKECLR); - au_writel(0xffffffff, IC1_SRCSET); - au_writel(0xffffffff, IC1_FALLINGCLR); - au_writel(0xffffffff, IC1_RISINGCLR); - au_writel(0x00000000, IC1_TESTBIT); + void __iomem *base; + ic_init((void __iomem *)KSEG1ADDR(AU1000_IC0_PHYS_ADDR)); + ic_init((void __iomem *)KSEG1ADDR(AU1000_IC1_PHYS_ADDR)); mips_cpu_irq_init(); /* register all 64 possible IC0+IC1 irq sources as type "none". * Use set_irq_type() to set edge/level behaviour at runtime. */ - for (i = AU1000_INTC0_INT_BASE; - (i < AU1000_INTC0_INT_BASE + 32); i++) - au1x_ic_settype(irq_get_irq_data(i), IRQ_TYPE_NONE); + for (irq_nr = AU1000_INTC0_INT_BASE; + (irq_nr < AU1000_INTC0_INT_BASE + 32); irq_nr++) + au1x_ic_settype(irq_get_irq_data(irq_nr), IRQ_TYPE_NONE); - for (i = AU1000_INTC1_INT_BASE; - (i < AU1000_INTC1_INT_BASE + 32); i++) - au1x_ic_settype(irq_get_irq_data(i), IRQ_TYPE_NONE); + for (irq_nr = AU1000_INTC1_INT_BASE; + (irq_nr < AU1000_INTC1_INT_BASE + 32); irq_nr++) + au1x_ic_settype(irq_get_irq_data(irq_nr), IRQ_TYPE_NONE); /* * Initialize IC0, which is fixed per processor. @@ -520,13 +549,13 @@ static void __init au1000_init_irq(struct au1xxx_irqmap *map) if (irq_nr >= AU1000_INTC1_INT_BASE) { bit = irq_nr - AU1000_INTC1_INT_BASE; - if (map->im_request) - au_writel(1 << bit, IC1_ASSIGNSET); + base = (void __iomem *)KSEG1ADDR(AU1000_IC1_PHYS_ADDR); } else { bit = irq_nr - AU1000_INTC0_INT_BASE; - if (map->im_request) - au_writel(1 << bit, IC0_ASSIGNSET); + base = (void __iomem *)KSEG1ADDR(AU1000_IC0_PHYS_ADDR); } + if (map->im_request) + __raw_writel(1 << bit, base + IC_ASSIGNSET); au1x_ic_settype(irq_get_irq_data(irq_nr), map->im_type); ++map; @@ -556,90 +585,62 @@ void __init arch_init_irq(void) } } -struct alchemy_ic_sysdev { - struct sys_device sysdev; - void __iomem *base; - unsigned long pmdata[7]; -}; -static int alchemy_ic_suspend(struct sys_device *dev, pm_message_t state) -{ - struct alchemy_ic_sysdev *icdev = - container_of(dev, struct alchemy_ic_sysdev, sysdev); +static unsigned long alchemy_ic_pmdata[7 * 2]; - icdev->pmdata[0] = __raw_readl(icdev->base + IC_CFG0RD); - icdev->pmdata[1] = __raw_readl(icdev->base + IC_CFG1RD); - icdev->pmdata[2] = __raw_readl(icdev->base + IC_CFG2RD); - icdev->pmdata[3] = __raw_readl(icdev->base + IC_SRCRD); - icdev->pmdata[4] = __raw_readl(icdev->base + IC_ASSIGNRD); - icdev->pmdata[5] = __raw_readl(icdev->base + IC_WAKERD); - icdev->pmdata[6] = __raw_readl(icdev->base + IC_MASKRD); - - return 0; +static inline void alchemy_ic_suspend_one(void __iomem *base, unsigned long *d) +{ + d[0] = __raw_readl(base + IC_CFG0RD); + d[1] = __raw_readl(base + IC_CFG1RD); + d[2] = __raw_readl(base + IC_CFG2RD); + d[3] = __raw_readl(base + IC_SRCRD); + d[4] = __raw_readl(base + IC_ASSIGNRD); + d[5] = __raw_readl(base + IC_WAKERD); + d[6] = __raw_readl(base + IC_MASKRD); + ic_init(base); /* shut it up too while at it */ } -static int alchemy_ic_resume(struct sys_device *dev) +static inline void alchemy_ic_resume_one(void __iomem *base, unsigned long *d) { - struct alchemy_ic_sysdev *icdev = - container_of(dev, struct alchemy_ic_sysdev, sysdev); - - __raw_writel(0xffffffff, icdev->base + IC_MASKCLR); - __raw_writel(0xffffffff, icdev->base + IC_CFG0CLR); - __raw_writel(0xffffffff, icdev->base + IC_CFG1CLR); - __raw_writel(0xffffffff, icdev->base + IC_CFG2CLR); - __raw_writel(0xffffffff, icdev->base + IC_SRCCLR); - __raw_writel(0xffffffff, icdev->base + IC_ASSIGNCLR); - __raw_writel(0xffffffff, icdev->base + IC_WAKECLR); - __raw_writel(0xffffffff, icdev->base + IC_RISINGCLR); - __raw_writel(0xffffffff, icdev->base + IC_FALLINGCLR); - __raw_writel(0x00000000, icdev->base + IC_TESTBIT); - wmb(); - __raw_writel(icdev->pmdata[0], icdev->base + IC_CFG0SET); - __raw_writel(icdev->pmdata[1], icdev->base + IC_CFG1SET); - __raw_writel(icdev->pmdata[2], icdev->base + IC_CFG2SET); - __raw_writel(icdev->pmdata[3], icdev->base + IC_SRCSET); - __raw_writel(icdev->pmdata[4], icdev->base + IC_ASSIGNSET); - __raw_writel(icdev->pmdata[5], icdev->base + IC_WAKESET); + ic_init(base); + + __raw_writel(d[0], base + IC_CFG0SET); + __raw_writel(d[1], base + IC_CFG1SET); + __raw_writel(d[2], base + IC_CFG2SET); + __raw_writel(d[3], base + IC_SRCSET); + __raw_writel(d[4], base + IC_ASSIGNSET); + __raw_writel(d[5], base + IC_WAKESET); wmb(); - __raw_writel(icdev->pmdata[6], icdev->base + IC_MASKSET); + __raw_writel(d[6], base + IC_MASKSET); wmb(); +} +static int alchemy_ic_suspend(void) +{ + alchemy_ic_suspend_one((void __iomem *)KSEG1ADDR(AU1000_IC0_PHYS_ADDR), + alchemy_ic_pmdata); + alchemy_ic_suspend_one((void __iomem *)KSEG1ADDR(AU1000_IC1_PHYS_ADDR), + &alchemy_ic_pmdata[7]); return 0; } -static struct sysdev_class alchemy_ic_sysdev_class = { - .name = "ic", +static void alchemy_ic_resume(void) +{ + alchemy_ic_resume_one((void __iomem *)KSEG1ADDR(AU1000_IC1_PHYS_ADDR), + &alchemy_ic_pmdata[7]); + alchemy_ic_resume_one((void __iomem *)KSEG1ADDR(AU1000_IC0_PHYS_ADDR), + alchemy_ic_pmdata); +} + +static struct syscore_ops alchemy_ic_syscore_ops = { .suspend = alchemy_ic_suspend, .resume = alchemy_ic_resume, }; -static int __init alchemy_ic_sysdev_init(void) +static int __init alchemy_ic_pm_init(void) { - struct alchemy_ic_sysdev *icdev; - unsigned long icbase[2] = { IC0_PHYS_ADDR, IC1_PHYS_ADDR }; - int err, i; - - err = sysdev_class_register(&alchemy_ic_sysdev_class); - if (err) - return err; - - for (i = 0; i < 2; i++) { - icdev = kzalloc(sizeof(struct alchemy_ic_sysdev), GFP_KERNEL); - if (!icdev) - return -ENOMEM; - - icdev->base = ioremap(icbase[i], 0x1000); - - icdev->sysdev.id = i; - icdev->sysdev.cls = &alchemy_ic_sysdev_class; - err = sysdev_register(&icdev->sysdev); - if (err) { - kfree(icdev); - return err; - } - } - + register_syscore_ops(&alchemy_ic_syscore_ops); return 0; } -device_initcall(alchemy_ic_sysdev_init); +device_initcall(alchemy_ic_pm_init); diff --git a/arch/mips/alchemy/common/platform.c b/arch/mips/alchemy/common/platform.c index 9e7814db3d0..3b2c18b1434 100644 --- a/arch/mips/alchemy/common/platform.c +++ b/arch/mips/alchemy/common/platform.c @@ -13,9 +13,10 @@ #include <linux/dma-mapping.h> #include <linux/etherdevice.h> +#include <linux/init.h> #include <linux/platform_device.h> #include <linux/serial_8250.h> -#include <linux/init.h> +#include <linux/slab.h> #include <asm/mach-au1x00/au1xxx.h> #include <asm/mach-au1x00/au1xxx_dbdma.h> @@ -30,21 +31,12 @@ static void alchemy_8250_pm(struct uart_port *port, unsigned int state, #ifdef CONFIG_SERIAL_8250 switch (state) { case 0: - if ((__raw_readl(port->membase + UART_MOD_CNTRL) & 3) != 3) { - /* power-on sequence as suggested in the databooks */ - __raw_writel(0, port->membase + UART_MOD_CNTRL); - wmb(); - __raw_writel(1, port->membase + UART_MOD_CNTRL); - wmb(); - } - __raw_writel(3, port->membase + UART_MOD_CNTRL); /* full on */ - wmb(); + alchemy_uart_enable(CPHYSADDR(port->membase)); serial8250_do_pm(port, state, old_state); break; case 3: /* power off */ serial8250_do_pm(port, state, old_state); - __raw_writel(0, port->membase + UART_MOD_CNTRL); - wmb(); + alchemy_uart_disable(CPHYSADDR(port->membase)); break; default: serial8250_do_pm(port, state, old_state); @@ -65,38 +57,60 @@ static void alchemy_8250_pm(struct uart_port *port, unsigned int state, .pm = alchemy_8250_pm, \ } -static struct plat_serial8250_port au1x00_uart_data[] = { -#if defined(CONFIG_SOC_AU1000) - PORT(UART0_PHYS_ADDR, AU1000_UART0_INT), - PORT(UART1_PHYS_ADDR, AU1000_UART1_INT), - PORT(UART2_PHYS_ADDR, AU1000_UART2_INT), - PORT(UART3_PHYS_ADDR, AU1000_UART3_INT), -#elif defined(CONFIG_SOC_AU1500) - PORT(UART0_PHYS_ADDR, AU1500_UART0_INT), - PORT(UART3_PHYS_ADDR, AU1500_UART3_INT), -#elif defined(CONFIG_SOC_AU1100) - PORT(UART0_PHYS_ADDR, AU1100_UART0_INT), - PORT(UART1_PHYS_ADDR, AU1100_UART1_INT), - PORT(UART3_PHYS_ADDR, AU1100_UART3_INT), -#elif defined(CONFIG_SOC_AU1550) - PORT(UART0_PHYS_ADDR, AU1550_UART0_INT), - PORT(UART1_PHYS_ADDR, AU1550_UART1_INT), - PORT(UART3_PHYS_ADDR, AU1550_UART3_INT), -#elif defined(CONFIG_SOC_AU1200) - PORT(UART0_PHYS_ADDR, AU1200_UART0_INT), - PORT(UART1_PHYS_ADDR, AU1200_UART1_INT), -#endif - { }, +static struct plat_serial8250_port au1x00_uart_data[][4] __initdata = { + [ALCHEMY_CPU_AU1000] = { + PORT(AU1000_UART0_PHYS_ADDR, AU1000_UART0_INT), + PORT(AU1000_UART1_PHYS_ADDR, AU1000_UART1_INT), + PORT(AU1000_UART2_PHYS_ADDR, AU1000_UART2_INT), + PORT(AU1000_UART3_PHYS_ADDR, AU1000_UART3_INT), + }, + [ALCHEMY_CPU_AU1500] = { + PORT(AU1000_UART0_PHYS_ADDR, AU1500_UART0_INT), + PORT(AU1000_UART3_PHYS_ADDR, AU1500_UART3_INT), + }, + [ALCHEMY_CPU_AU1100] = { + PORT(AU1000_UART0_PHYS_ADDR, AU1100_UART0_INT), + PORT(AU1000_UART1_PHYS_ADDR, AU1100_UART1_INT), + PORT(AU1000_UART3_PHYS_ADDR, AU1100_UART3_INT), + }, + [ALCHEMY_CPU_AU1550] = { + PORT(AU1000_UART0_PHYS_ADDR, AU1550_UART0_INT), + PORT(AU1000_UART1_PHYS_ADDR, AU1550_UART1_INT), + PORT(AU1000_UART3_PHYS_ADDR, AU1550_UART3_INT), + }, + [ALCHEMY_CPU_AU1200] = { + PORT(AU1000_UART0_PHYS_ADDR, AU1200_UART0_INT), + PORT(AU1000_UART1_PHYS_ADDR, AU1200_UART1_INT), + }, }; static struct platform_device au1xx0_uart_device = { .name = "serial8250", .id = PLAT8250_DEV_AU1X00, - .dev = { - .platform_data = au1x00_uart_data, - }, }; +static void __init alchemy_setup_uarts(int ctype) +{ + unsigned int uartclk = get_au1x00_uart_baud_base() * 16; + int s = sizeof(struct plat_serial8250_port); + int c = alchemy_get_uarts(ctype); + struct plat_serial8250_port *ports; + + ports = kzalloc(s * (c + 1), GFP_KERNEL); + if (!ports) { + printk(KERN_INFO "Alchemy: no memory for UART data\n"); + return; + } + memcpy(ports, au1x00_uart_data[ctype], s * c); + au1xx0_uart_device.dev.platform_data = ports; + + /* Fill up uartclk. */ + for (s = 0; s < c; s++) + ports[s].uartclk = uartclk; + if (platform_device_register(&au1xx0_uart_device)) + printk(KERN_INFO "Alchemy: failed to register UARTs\n"); +} + /* OHCI (USB full speed host controller) */ static struct resource au1xxx_usb_ohci_resources[] = { [0] = { @@ -269,8 +283,8 @@ extern struct au1xmmc_platform_data au1xmmc_platdata[2]; static struct resource au1200_mmc0_resources[] = { [0] = { - .start = SD0_PHYS_ADDR, - .end = SD0_PHYS_ADDR + 0x7ffff, + .start = AU1100_SD0_PHYS_ADDR, + .end = AU1100_SD0_PHYS_ADDR + 0xfff, .flags = IORESOURCE_MEM, }, [1] = { @@ -305,8 +319,8 @@ static struct platform_device au1200_mmc0_device = { #ifndef CONFIG_MIPS_DB1200 static struct resource au1200_mmc1_resources[] = { [0] = { - .start = SD1_PHYS_ADDR, - .end = SD1_PHYS_ADDR + 0x7ffff, + .start = AU1100_SD1_PHYS_ADDR, + .end = AU1100_SD1_PHYS_ADDR + 0xfff, .flags = IORESOURCE_MEM, }, [1] = { @@ -359,15 +373,16 @@ static struct platform_device pbdb_smbus_device = { #endif /* Macro to help defining the Ethernet MAC resources */ +#define MAC_RES_COUNT 3 /* MAC regs base, MAC enable reg, MAC INT */ #define MAC_RES(_base, _enable, _irq) \ { \ - .start = CPHYSADDR(_base), \ - .end = CPHYSADDR(_base + 0xffff), \ + .start = _base, \ + .end = _base + 0xffff, \ .flags = IORESOURCE_MEM, \ }, \ { \ - .start = CPHYSADDR(_enable), \ - .end = CPHYSADDR(_enable + 0x3), \ + .start = _enable, \ + .end = _enable + 0x3, \ .flags = IORESOURCE_MEM, \ }, \ { \ @@ -376,19 +391,29 @@ static struct platform_device pbdb_smbus_device = { .flags = IORESOURCE_IRQ \ } -static struct resource au1xxx_eth0_resources[] = { -#if defined(CONFIG_SOC_AU1000) - MAC_RES(AU1000_ETH0_BASE, AU1000_MAC0_ENABLE, AU1000_MAC0_DMA_INT), -#elif defined(CONFIG_SOC_AU1100) - MAC_RES(AU1100_ETH0_BASE, AU1100_MAC0_ENABLE, AU1100_MAC0_DMA_INT), -#elif defined(CONFIG_SOC_AU1550) - MAC_RES(AU1550_ETH0_BASE, AU1550_MAC0_ENABLE, AU1550_MAC0_DMA_INT), -#elif defined(CONFIG_SOC_AU1500) - MAC_RES(AU1500_ETH0_BASE, AU1500_MAC0_ENABLE, AU1500_MAC0_DMA_INT), -#endif +static struct resource au1xxx_eth0_resources[][MAC_RES_COUNT] __initdata = { + [ALCHEMY_CPU_AU1000] = { + MAC_RES(AU1000_MAC0_PHYS_ADDR, + AU1000_MACEN_PHYS_ADDR, + AU1000_MAC0_DMA_INT) + }, + [ALCHEMY_CPU_AU1500] = { + MAC_RES(AU1500_MAC0_PHYS_ADDR, + AU1500_MACEN_PHYS_ADDR, + AU1500_MAC0_DMA_INT) + }, + [ALCHEMY_CPU_AU1100] = { + MAC_RES(AU1000_MAC0_PHYS_ADDR, + AU1000_MACEN_PHYS_ADDR, + AU1100_MAC0_DMA_INT) + }, + [ALCHEMY_CPU_AU1550] = { + MAC_RES(AU1000_MAC0_PHYS_ADDR, + AU1000_MACEN_PHYS_ADDR, + AU1550_MAC0_DMA_INT) + }, }; - static struct au1000_eth_platform_data au1xxx_eth0_platform_data = { .phy1_search_mac0 = 1, }; @@ -396,20 +421,26 @@ static struct au1000_eth_platform_data au1xxx_eth0_platform_data = { static struct platform_device au1xxx_eth0_device = { .name = "au1000-eth", .id = 0, - .num_resources = ARRAY_SIZE(au1xxx_eth0_resources), - .resource = au1xxx_eth0_resources, + .num_resources = MAC_RES_COUNT, .dev.platform_data = &au1xxx_eth0_platform_data, }; -#ifndef CONFIG_SOC_AU1100 -static struct resource au1xxx_eth1_resources[] = { -#if defined(CONFIG_SOC_AU1000) - MAC_RES(AU1000_ETH1_BASE, AU1000_MAC1_ENABLE, AU1000_MAC1_DMA_INT), -#elif defined(CONFIG_SOC_AU1550) - MAC_RES(AU1550_ETH1_BASE, AU1550_MAC1_ENABLE, AU1550_MAC1_DMA_INT), -#elif defined(CONFIG_SOC_AU1500) - MAC_RES(AU1500_ETH1_BASE, AU1500_MAC1_ENABLE, AU1500_MAC1_DMA_INT), -#endif +static struct resource au1xxx_eth1_resources[][MAC_RES_COUNT] __initdata = { + [ALCHEMY_CPU_AU1000] = { + MAC_RES(AU1000_MAC1_PHYS_ADDR, + AU1000_MACEN_PHYS_ADDR + 4, + AU1000_MAC1_DMA_INT) + }, + [ALCHEMY_CPU_AU1500] = { + MAC_RES(AU1500_MAC1_PHYS_ADDR, + AU1500_MACEN_PHYS_ADDR + 4, + AU1500_MAC1_DMA_INT) + }, + [ALCHEMY_CPU_AU1550] = { + MAC_RES(AU1000_MAC1_PHYS_ADDR, + AU1000_MACEN_PHYS_ADDR + 4, + AU1550_MAC1_DMA_INT) + }, }; static struct au1000_eth_platform_data au1xxx_eth1_platform_data = { @@ -419,11 +450,9 @@ static struct au1000_eth_platform_data au1xxx_eth1_platform_data = { static struct platform_device au1xxx_eth1_device = { .name = "au1000-eth", .id = 1, - .num_resources = ARRAY_SIZE(au1xxx_eth1_resources), - .resource = au1xxx_eth1_resources, + .num_resources = MAC_RES_COUNT, .dev.platform_data = &au1xxx_eth1_platform_data, }; -#endif void __init au1xxx_override_eth_cfg(unsigned int port, struct au1000_eth_platform_data *eth_data) @@ -434,15 +463,65 @@ void __init au1xxx_override_eth_cfg(unsigned int port, if (port == 0) memcpy(&au1xxx_eth0_platform_data, eth_data, sizeof(struct au1000_eth_platform_data)); -#ifndef CONFIG_SOC_AU1100 else memcpy(&au1xxx_eth1_platform_data, eth_data, sizeof(struct au1000_eth_platform_data)); -#endif +} + +static void __init alchemy_setup_macs(int ctype) +{ + int ret, i; + unsigned char ethaddr[6]; + struct resource *macres; + + /* Handle 1st MAC */ + if (alchemy_get_macs(ctype) < 1) + return; + + macres = kmalloc(sizeof(struct resource) * MAC_RES_COUNT, GFP_KERNEL); + if (!macres) { + printk(KERN_INFO "Alchemy: no memory for MAC0 resources\n"); + return; + } + memcpy(macres, au1xxx_eth0_resources[ctype], + sizeof(struct resource) * MAC_RES_COUNT); + au1xxx_eth0_device.resource = macres; + + i = prom_get_ethernet_addr(ethaddr); + if (!i && !is_valid_ether_addr(au1xxx_eth0_platform_data.mac)) + memcpy(au1xxx_eth0_platform_data.mac, ethaddr, 6); + + ret = platform_device_register(&au1xxx_eth0_device); + if (!ret) + printk(KERN_INFO "Alchemy: failed to register MAC0\n"); + + + /* Handle 2nd MAC */ + if (alchemy_get_macs(ctype) < 2) + return; + + macres = kmalloc(sizeof(struct resource) * MAC_RES_COUNT, GFP_KERNEL); + if (!macres) { + printk(KERN_INFO "Alchemy: no memory for MAC1 resources\n"); + return; + } + memcpy(macres, au1xxx_eth1_resources[ctype], + sizeof(struct resource) * MAC_RES_COUNT); + au1xxx_eth1_device.resource = macres; + + ethaddr[5] += 1; /* next addr for 2nd MAC */ + if (!i && !is_valid_ether_addr(au1xxx_eth1_platform_data.mac)) + memcpy(au1xxx_eth1_platform_data.mac, ethaddr, 6); + + /* Register second MAC if enabled in pinfunc */ + if (!(au_readl(SYS_PINFUNC) & (u32)SYS_PF_NI2)) { + ret = platform_device_register(&au1xxx_eth1_device); + if (ret) + printk(KERN_INFO "Alchemy: failed to register MAC1\n"); + } } static struct platform_device *au1xxx_platform_devices[] __initdata = { - &au1xx0_uart_device, &au1xxx_usb_ohci_device, #ifdef CONFIG_FB_AU1100 &au1100_lcd_device, @@ -460,36 +539,17 @@ static struct platform_device *au1xxx_platform_devices[] __initdata = { #ifdef SMBUS_PSC_BASE &pbdb_smbus_device, #endif - &au1xxx_eth0_device, }; static int __init au1xxx_platform_init(void) { - unsigned int uartclk = get_au1x00_uart_baud_base() * 16; - int err, i; - unsigned char ethaddr[6]; + int err, ctype = alchemy_get_cputype(); - /* Fill up uartclk. */ - for (i = 0; au1x00_uart_data[i].flags; i++) - au1x00_uart_data[i].uartclk = uartclk; - - /* use firmware-provided mac addr if available and necessary */ - i = prom_get_ethernet_addr(ethaddr); - if (!i && !is_valid_ether_addr(au1xxx_eth0_platform_data.mac)) - memcpy(au1xxx_eth0_platform_data.mac, ethaddr, 6); + alchemy_setup_uarts(ctype); + alchemy_setup_macs(ctype); err = platform_add_devices(au1xxx_platform_devices, ARRAY_SIZE(au1xxx_platform_devices)); -#ifndef CONFIG_SOC_AU1100 - ethaddr[5] += 1; /* next addr for 2nd MAC */ - if (!i && !is_valid_ether_addr(au1xxx_eth1_platform_data.mac)) - memcpy(au1xxx_eth1_platform_data.mac, ethaddr, 6); - - /* Register second MAC if enabled in pinfunc */ - if (!err && !(au_readl(SYS_PINFUNC) & (u32)SYS_PF_NI2)) - err = platform_device_register(&au1xxx_eth1_device); -#endif - return err; } diff --git a/arch/mips/alchemy/common/setup.c b/arch/mips/alchemy/common/setup.c index 561e5da2658..1b887c86841 100644 --- a/arch/mips/alchemy/common/setup.c +++ b/arch/mips/alchemy/common/setup.c @@ -52,8 +52,6 @@ void __init plat_mem_setup(void) /* this is faster than wasting cycles trying to approximate it */ preset_lpj = (est_freq >> 1) / HZ; - board_setup(); /* board specific setup */ - if (au1xxx_cpu_needs_config_od()) /* Various early Au1xx0 errata corrected by this */ set_c0_config(1 << 19); /* Set Config[OD] */ @@ -61,6 +59,8 @@ void __init plat_mem_setup(void) /* Clear to obtain best system bus performance */ clear_c0_config(1 << 19); /* Clear Config[OD] */ + board_setup(); /* board specific setup */ + /* IO/MEM resources. */ set_io_port_base(0); ioport_resource.start = IOPORT_RESOURCE_START; diff --git a/arch/mips/alchemy/common/time.c b/arch/mips/alchemy/common/time.c index 2aecb2fdf98..d5da6adbf63 100644 --- a/arch/mips/alchemy/common/time.c +++ b/arch/mips/alchemy/common/time.c @@ -141,8 +141,7 @@ static int __init alchemy_time_init(unsigned int m2int) goto cntr_err; /* register counter1 clocksource and event device */ - clocksource_set_clock(&au1x_counter1_clocksource, 32768); - clocksource_register(&au1x_counter1_clocksource); + clocksource_register_hz(&au1x_counter1_clocksource, 32768); cd->shift = 32; cd->mult = div_sc(32768, NSEC_PER_SEC, cd->shift); diff --git a/arch/mips/alchemy/devboards/db1200/setup.c b/arch/mips/alchemy/devboards/db1200/setup.c index 4a8980027ec..1dac4f27d33 100644 --- a/arch/mips/alchemy/devboards/db1200/setup.c +++ b/arch/mips/alchemy/devboards/db1200/setup.c @@ -23,6 +23,13 @@ void __init board_setup(void) unsigned long freq0, clksrc, div, pfc; unsigned short whoami; + /* Set Config[OD] (disable overlapping bus transaction): + * This gets rid of a _lot_ of spurious interrupts (especially + * wrt. IDE); but incurs ~10% performance hit in some + * cpu-bound applications. + */ + set_c0_config(1 << 19); + bcsr_init(DB1200_BCSR_PHYS_ADDR, DB1200_BCSR_PHYS_ADDR + DB1200_BCSR_HEXLED_OFS); diff --git a/arch/mips/alchemy/devboards/db1x00/board_setup.c b/arch/mips/alchemy/devboards/db1x00/board_setup.c index 05f120ff90f..5c956fe8760 100644 --- a/arch/mips/alchemy/devboards/db1x00/board_setup.c +++ b/arch/mips/alchemy/devboards/db1x00/board_setup.c @@ -127,13 +127,10 @@ const char *get_system_type(void) void __init board_setup(void) { unsigned long bcsr1, bcsr2; - u32 pin_func; bcsr1 = DB1000_BCSR_PHYS_ADDR; bcsr2 = DB1000_BCSR_PHYS_ADDR + DB1000_BCSR_HEXLED_OFS; - pin_func = 0; - #ifdef CONFIG_MIPS_DB1000 printk(KERN_INFO "AMD Alchemy Au1000/Db1000 Board\n"); #endif @@ -164,12 +161,16 @@ void __init board_setup(void) /* Not valid for Au1550 */ #if defined(CONFIG_IRDA) && \ (defined(CONFIG_SOC_AU1000) || defined(CONFIG_SOC_AU1100)) - /* Set IRFIRSEL instead of GPIO15 */ - pin_func = au_readl(SYS_PINFUNC) | SYS_PF_IRF; - au_writel(pin_func, SYS_PINFUNC); - /* Power off until the driver is in use */ - bcsr_mod(BCSR_RESETS, BCSR_RESETS_IRDA_MODE_MASK, - BCSR_RESETS_IRDA_MODE_OFF); + { + u32 pin_func; + + /* Set IRFIRSEL instead of GPIO15 */ + pin_func = au_readl(SYS_PINFUNC) | SYS_PF_IRF; + au_writel(pin_func, SYS_PINFUNC); + /* Power off until the driver is in use */ + bcsr_mod(BCSR_RESETS, BCSR_RESETS_IRDA_MODE_MASK, + BCSR_RESETS_IRDA_MODE_OFF); + } #endif bcsr_write(BCSR_PCMCIA, 0); /* turn off PCMCIA power */ @@ -177,31 +178,35 @@ void __init board_setup(void) alchemy_gpio1_input_enable(); #ifdef CONFIG_MIPS_MIRAGE - /* GPIO[20] is output */ - alchemy_gpio_direction_output(20, 0); + { + u32 pin_func; - /* Set GPIO[210:208] instead of SSI_0 */ - pin_func = au_readl(SYS_PINFUNC) | SYS_PF_S0; + /* GPIO[20] is output */ + alchemy_gpio_direction_output(20, 0); - /* Set GPIO[215:211] for LEDs */ - pin_func |= 5 << 2; + /* Set GPIO[210:208] instead of SSI_0 */ + pin_func = au_readl(SYS_PINFUNC) | SYS_PF_S0; - /* Set GPIO[214:213] for more LEDs */ - pin_func |= 5 << 12; + /* Set GPIO[215:211] for LEDs */ + pin_func |= 5 << 2; - /* Set GPIO[207:200] instead of PCMCIA/LCD */ - pin_func |= SYS_PF_LCD | SYS_PF_PC; - au_writel(pin_func, SYS_PINFUNC); + /* Set GPIO[214:213] for more LEDs */ + pin_func |= 5 << 12; - /* - * Enable speaker amplifier. This should - * be part of the audio driver. - */ - alchemy_gpio_direction_output(209, 1); + /* Set GPIO[207:200] instead of PCMCIA/LCD */ + pin_func |= SYS_PF_LCD | SYS_PF_PC; + au_writel(pin_func, SYS_PINFUNC); - pm_power_off = mirage_power_off; - _machine_halt = mirage_power_off; - _machine_restart = (void(*)(char *))mips_softreset; + /* + * Enable speaker amplifier. This should + * be part of the audio driver. + */ + alchemy_gpio_direction_output(209, 1); + + pm_power_off = mirage_power_off; + _machine_halt = mirage_power_off; + _machine_restart = (void(*)(char *))mips_softreset; + } #endif #ifdef CONFIG_MIPS_BOSPORUS diff --git a/arch/mips/alchemy/devboards/pb1000/board_setup.c b/arch/mips/alchemy/devboards/pb1000/board_setup.c index 2d85c4b5be0..e64fdcbf75d 100644 --- a/arch/mips/alchemy/devboards/pb1000/board_setup.c +++ b/arch/mips/alchemy/devboards/pb1000/board_setup.c @@ -65,7 +65,7 @@ void __init board_setup(void) /* Set AUX clock to 12 MHz * 8 = 96 MHz */ au_writel(8, SYS_AUXPLL); - au_writel(0, SYS_PINSTATERD); + alchemy_gpio1_input_enable(); udelay(100); #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) diff --git a/arch/mips/alchemy/devboards/pb1500/board_setup.c b/arch/mips/alchemy/devboards/pb1500/board_setup.c index 83f46215eb0..3b4fa320696 100644 --- a/arch/mips/alchemy/devboards/pb1500/board_setup.c +++ b/arch/mips/alchemy/devboards/pb1500/board_setup.c @@ -56,7 +56,7 @@ void __init board_setup(void) sys_clksrc = sys_freqctrl = pin_func = 0; /* Set AUX clock to 12 MHz * 8 = 96 MHz */ au_writel(8, SYS_AUXPLL); - au_writel(0, SYS_PINSTATERD); + alchemy_gpio1_input_enable(); udelay(100); /* GPIO201 is input for PCMCIA card detect */ diff --git a/arch/mips/alchemy/devboards/prom.c b/arch/mips/alchemy/devboards/prom.c index baeb2138505..e5306b56da6 100644 --- a/arch/mips/alchemy/devboards/prom.c +++ b/arch/mips/alchemy/devboards/prom.c @@ -62,5 +62,5 @@ void __init prom_init(void) void prom_putchar(unsigned char c) { - alchemy_uart_putchar(UART0_PHYS_ADDR, c); + alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c); } diff --git a/arch/mips/alchemy/gpr/board_setup.c b/arch/mips/alchemy/gpr/board_setup.c index ad2e3f13793..5f8f0691ed2 100644 --- a/arch/mips/alchemy/gpr/board_setup.c +++ b/arch/mips/alchemy/gpr/board_setup.c @@ -36,9 +36,6 @@ #include <prom.h> -#define UART1_ADDR KSEG1ADDR(UART1_PHYS_ADDR) -#define UART3_ADDR KSEG1ADDR(UART3_PHYS_ADDR) - char irq_tab_alchemy[][5] __initdata = { [0] = { -1, AU1500_PCI_INTA, AU1500_PCI_INTB, 0xff, 0xff }, }; @@ -67,18 +64,15 @@ static void gpr_power_off(void) void __init board_setup(void) { - printk(KERN_INFO "Tarpeze ITS GPR board\n"); + printk(KERN_INFO "Trapeze ITS GPR board\n"); pm_power_off = gpr_power_off; _machine_halt = gpr_power_off; _machine_restart = gpr_reset; - /* Enable UART3 */ - au_writel(0x1, UART3_ADDR + UART_MOD_CNTRL);/* clock enable (CE) */ - au_writel(0x3, UART3_ADDR + UART_MOD_CNTRL); /* CE and "enable" */ - /* Enable UART1 */ - au_writel(0x1, UART1_ADDR + UART_MOD_CNTRL); /* clock enable (CE) */ - au_writel(0x3, UART1_ADDR + UART_MOD_CNTRL); /* CE and "enable" */ + /* Enable UART1/3 */ + alchemy_uart_enable(AU1000_UART3_PHYS_ADDR); + alchemy_uart_enable(AU1000_UART1_PHYS_ADDR); /* Take away Reset of UMTS-card */ alchemy_gpio_direction_output(215, 1); diff --git a/arch/mips/alchemy/gpr/init.c b/arch/mips/alchemy/gpr/init.c index f044f4c541d..229aafae680 100644 --- a/arch/mips/alchemy/gpr/init.c +++ b/arch/mips/alchemy/gpr/init.c @@ -59,5 +59,5 @@ void __init prom_init(void) void prom_putchar(unsigned char c) { - alchemy_uart_putchar(UART0_PHYS_ADDR, c); + alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c); } diff --git a/arch/mips/alchemy/mtx-1/board_setup.c b/arch/mips/alchemy/mtx-1/board_setup.c index cf436ab679a..3ae984cf98c 100644 --- a/arch/mips/alchemy/mtx-1/board_setup.c +++ b/arch/mips/alchemy/mtx-1/board_setup.c @@ -87,7 +87,7 @@ void __init board_setup(void) au_writel(SYS_PF_NI2, SYS_PINFUNC); /* Initialize GPIO */ - au_writel(0xFFFFFFFF, SYS_TRIOUTCLR); + au_writel(~0, KSEG1ADDR(AU1000_SYS_PHYS_ADDR) + SYS_TRIOUTCLR); alchemy_gpio_direction_output(0, 0); /* Disable M66EN (PCI 66MHz) */ alchemy_gpio_direction_output(3, 1); /* Disable PCI CLKRUN# */ alchemy_gpio_direction_output(1, 1); /* Enable EXT_IO3 */ diff --git a/arch/mips/alchemy/mtx-1/init.c b/arch/mips/alchemy/mtx-1/init.c index f8d25575fa0..2e81cc7f342 100644 --- a/arch/mips/alchemy/mtx-1/init.c +++ b/arch/mips/alchemy/mtx-1/init.c @@ -62,5 +62,5 @@ void __init prom_init(void) void prom_putchar(unsigned char c) { - alchemy_uart_putchar(UART0_PHYS_ADDR, c); + alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c); } diff --git a/arch/mips/alchemy/mtx-1/platform.c b/arch/mips/alchemy/mtx-1/platform.c index 956f946218c..55628e390fd 100644 --- a/arch/mips/alchemy/mtx-1/platform.c +++ b/arch/mips/alchemy/mtx-1/platform.c @@ -53,8 +53,8 @@ static struct platform_device mtx1_button = { static struct resource mtx1_wdt_res[] = { [0] = { - .start = 15, - .end = 15, + .start = 215, + .end = 215, .name = "mtx1-wdt-gpio", .flags = IORESOURCE_IRQ, } diff --git a/arch/mips/alchemy/xxs1500/board_setup.c b/arch/mips/alchemy/xxs1500/board_setup.c index febfb0fb089..81e57fad07a 100644 --- a/arch/mips/alchemy/xxs1500/board_setup.c +++ b/arch/mips/alchemy/xxs1500/board_setup.c @@ -66,13 +66,10 @@ void __init board_setup(void) au_writel(pin_func, SYS_PINFUNC); /* Enable UART */ - au_writel(0x01, UART3_ADDR + UART_MOD_CNTRL); /* clock enable (CE) */ - mdelay(10); - au_writel(0x03, UART3_ADDR + UART_MOD_CNTRL); /* CE and "enable" */ - mdelay(10); - - /* Enable DTR = USB power up */ - au_writel(0x01, UART3_ADDR + UART_MCR); /* UART_MCR_DTR is 0x01??? */ + alchemy_uart_enable(AU1000_UART3_PHYS_ADDR); + /* Enable DTR (MCR bit 0) = USB power up */ + __raw_writel(1, (void __iomem *)KSEG1ADDR(AU1000_UART3_PHYS_ADDR + 0x18)); + wmb(); #ifdef CONFIG_PCI #if defined(__MIPSEB__) diff --git a/arch/mips/alchemy/xxs1500/init.c b/arch/mips/alchemy/xxs1500/init.c index 15125c2fda7..0ee02cfa989 100644 --- a/arch/mips/alchemy/xxs1500/init.c +++ b/arch/mips/alchemy/xxs1500/init.c @@ -51,14 +51,13 @@ void __init prom_init(void) prom_init_cmdline(); memsize_str = prom_getenv("memsize"); - if (!memsize_str) + if (!memsize_str || strict_strtoul(memsize_str, 0, &memsize)) memsize = 0x04000000; - else - strict_strtoul(memsize_str, 0, &memsize); + add_memory_region(0, memsize, BOOT_MEM_RAM); } void prom_putchar(unsigned char c) { - alchemy_uart_putchar(UART0_PHYS_ADDR, c); + alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c); } diff --git a/arch/mips/ar7/gpio.c b/arch/mips/ar7/gpio.c index 425dfa5d6e1..bb571bcdb8f 100644 --- a/arch/mips/ar7/gpio.c +++ b/arch/mips/ar7/gpio.c @@ -325,9 +325,7 @@ int __init ar7_gpio_init(void) size = 0x1f; } - gpch->regs = ioremap_nocache(AR7_REGS_GPIO, - AR7_REGS_GPIO + 0x10); - + gpch->regs = ioremap_nocache(AR7_REGS_GPIO, size); if (!gpch->regs) { printk(KERN_ERR "%s: failed to ioremap regs\n", gpch->chip.label); diff --git a/arch/mips/bcm47xx/nvram.c b/arch/mips/bcm47xx/nvram.c index e5b6615731e..54db815bc86 100644 --- a/arch/mips/bcm47xx/nvram.c +++ b/arch/mips/bcm47xx/nvram.c @@ -3,6 +3,7 @@ * * Copyright (C) 2005 Broadcom Corporation * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org> + * Copyright (C) 2010-2011 Hauke Mehrtens <hauke@hauke-m.de> * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the @@ -23,7 +24,7 @@ static char nvram_buf[NVRAM_SPACE]; /* Probe for NVRAM header */ -static void __init early_nvram_init(void) +static void early_nvram_init(void) { struct ssb_mipscore *mcore = &ssb_bcm47xx.mipscore; struct nvram_header *header; diff --git a/arch/mips/bcm47xx/setup.c b/arch/mips/bcm47xx/setup.c index c95f90bf734..73b529b5743 100644 --- a/arch/mips/bcm47xx/setup.c +++ b/arch/mips/bcm47xx/setup.c @@ -3,6 +3,7 @@ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org> * Copyright (C) 2006 Michael Buesch <mb@bu3sch.de> * Copyright (C) 2010 Waldemar Brodkorb <wbx@openadk.org> + * Copyright (C) 2010-2011 Hauke Mehrtens <hauke@hauke-m.de> * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the @@ -57,10 +58,49 @@ static void bcm47xx_machine_halt(void) } #define READ_FROM_NVRAM(_outvar, name, buf) \ - if (nvram_getenv(name, buf, sizeof(buf)) >= 0)\ + if (nvram_getprefix(prefix, name, buf, sizeof(buf)) >= 0)\ sprom->_outvar = simple_strtoul(buf, NULL, 0); -static void bcm47xx_fill_sprom(struct ssb_sprom *sprom) +#define READ_FROM_NVRAM2(_outvar, name1, name2, buf) \ + if (nvram_getprefix(prefix, name1, buf, sizeof(buf)) >= 0 || \ + nvram_getprefix(prefix, name2, buf, sizeof(buf)) >= 0)\ + sprom->_outvar = simple_strtoul(buf, NULL, 0); + +static inline int nvram_getprefix(const char *prefix, char *name, + char *buf, int len) +{ + if (prefix) { + char key[100]; + + snprintf(key, sizeof(key), "%s%s", prefix, name); + return nvram_getenv(key, buf, len); + } + + return nvram_getenv(name, buf, len); +} + +static u32 nvram_getu32(const char *name, char *buf, int len) +{ + int rv; + char key[100]; + u16 var0, var1; + + snprintf(key, sizeof(key), "%s0", name); + rv = nvram_getenv(key, buf, len); + /* return 0 here so this looks like unset */ + if (rv < 0) + return 0; + var0 = simple_strtoul(buf, NULL, 0); + + snprintf(key, sizeof(key), "%s1", name); + rv = nvram_getenv(key, buf, len); + if (rv < 0) + return 0; + var1 = simple_strtoul(buf, NULL, 0); + return var1 << 16 | var0; +} + +static void bcm47xx_fill_sprom(struct ssb_sprom *sprom, const char *prefix) { char buf[100]; u32 boardflags; @@ -69,11 +109,12 @@ static void bcm47xx_fill_sprom(struct ssb_sprom *sprom) sprom->revision = 1; /* Fallback: Old hardware does not define this. */ READ_FROM_NVRAM(revision, "sromrev", buf); - if (nvram_getenv("il0macaddr", buf, sizeof(buf)) >= 0) + if (nvram_getprefix(prefix, "il0macaddr", buf, sizeof(buf)) >= 0 || + nvram_getprefix(prefix, "macaddr", buf, sizeof(buf)) >= 0) nvram_parse_macaddr(buf, sprom->il0mac); - if (nvram_getenv("et0macaddr", buf, sizeof(buf)) >= 0) + if (nvram_getprefix(prefix, "et0macaddr", buf, sizeof(buf)) >= 0) nvram_parse_macaddr(buf, sprom->et0mac); - if (nvram_getenv("et1macaddr", buf, sizeof(buf)) >= 0) + if (nvram_getprefix(prefix, "et1macaddr", buf, sizeof(buf)) >= 0) nvram_parse_macaddr(buf, sprom->et1mac); READ_FROM_NVRAM(et0phyaddr, "et0phyaddr", buf); READ_FROM_NVRAM(et1phyaddr, "et1phyaddr", buf); @@ -95,20 +136,36 @@ static void bcm47xx_fill_sprom(struct ssb_sprom *sprom) READ_FROM_NVRAM(pa1hib0, "pa1hib0", buf); READ_FROM_NVRAM(pa1hib2, "pa1hib1", buf); READ_FROM_NVRAM(pa1hib1, "pa1hib2", buf); - READ_FROM_NVRAM(gpio0, "wl0gpio0", buf); - READ_FROM_NVRAM(gpio1, "wl0gpio1", buf); - READ_FROM_NVRAM(gpio2, "wl0gpio2", buf); - READ_FROM_NVRAM(gpio3, "wl0gpio3", buf); - READ_FROM_NVRAM(maxpwr_bg, "pa0maxpwr", buf); - READ_FROM_NVRAM(maxpwr_al, "pa1lomaxpwr", buf); - READ_FROM_NVRAM(maxpwr_a, "pa1maxpwr", buf); - READ_FROM_NVRAM(maxpwr_ah, "pa1himaxpwr", buf); - READ_FROM_NVRAM(itssi_a, "pa1itssit", buf); - READ_FROM_NVRAM(itssi_bg, "pa0itssit", buf); + READ_FROM_NVRAM2(gpio0, "ledbh0", "wl0gpio0", buf); + READ_FROM_NVRAM2(gpio1, "ledbh1", "wl0gpio1", buf); + READ_FROM_NVRAM2(gpio2, "ledbh2", "wl0gpio2", buf); + READ_FROM_NVRAM2(gpio3, "ledbh3", "wl0gpio3", buf); + READ_FROM_NVRAM2(maxpwr_bg, "maxp2ga0", "pa0maxpwr", buf); + READ_FROM_NVRAM2(maxpwr_al, "maxp5gla0", "pa1lomaxpwr", buf); + READ_FROM_NVRAM2(maxpwr_a, "maxp5ga0", "pa1maxpwr", buf); + READ_FROM_NVRAM2(maxpwr_ah, "maxp5gha0", "pa1himaxpwr", buf); + READ_FROM_NVRAM2(itssi_bg, "itt5ga0", "pa0itssit", buf); + READ_FROM_NVRAM2(itssi_a, "itt2ga0", "pa1itssit", buf); READ_FROM_NVRAM(tri2g, "tri2g", buf); READ_FROM_NVRAM(tri5gl, "tri5gl", buf); READ_FROM_NVRAM(tri5g, "tri5g", buf); READ_FROM_NVRAM(tri5gh, "tri5gh", buf); + READ_FROM_NVRAM(txpid2g[0], "txpid2ga0", buf); + READ_FROM_NVRAM(txpid2g[1], "txpid2ga1", buf); + READ_FROM_NVRAM(txpid2g[2], "txpid2ga2", buf); + READ_FROM_NVRAM(txpid2g[3], "txpid2ga3", buf); + READ_FROM_NVRAM(txpid5g[0], "txpid5ga0", buf); + READ_FROM_NVRAM(txpid5g[1], "txpid5ga1", buf); + READ_FROM_NVRAM(txpid5g[2], "txpid5ga2", buf); + READ_FROM_NVRAM(txpid5g[3], "txpid5ga3", buf); + READ_FROM_NVRAM(txpid5gl[0], "txpid5gla0", buf); + READ_FROM_NVRAM(txpid5gl[1], "txpid5gla1", buf); + READ_FROM_NVRAM(txpid5gl[2], "txpid5gla2", buf); + READ_FROM_NVRAM(txpid5gl[3], "txpid5gla3", buf); + READ_FROM_NVRAM(txpid5gh[0], "txpid5gha0", buf); + READ_FROM_NVRAM(txpid5gh[1], "txpid5gha1", buf); + READ_FROM_NVRAM(txpid5gh[2], "txpid5gha2", buf); + READ_FROM_NVRAM(txpid5gh[3], "txpid5gha3", buf); READ_FROM_NVRAM(rxpo2g, "rxpo2g", buf); READ_FROM_NVRAM(rxpo5g, "rxpo5g", buf); READ_FROM_NVRAM(rssisav2g, "rssisav2g", buf); @@ -120,19 +177,27 @@ static void bcm47xx_fill_sprom(struct ssb_sprom *sprom) READ_FROM_NVRAM(rssismf5g, "rssismf5g", buf); READ_FROM_NVRAM(bxa5g, "bxa5g", buf); READ_FROM_NVRAM(cck2gpo, "cck2gpo", buf); - READ_FROM_NVRAM(ofdm2gpo, "ofdm2gpo", buf); - READ_FROM_NVRAM(ofdm5glpo, "ofdm5glpo", buf); - READ_FROM_NVRAM(ofdm5gpo, "ofdm5gpo", buf); - READ_FROM_NVRAM(ofdm5ghpo, "ofdm5ghpo", buf); - if (nvram_getenv("boardflags", buf, sizeof(buf)) >= 0) { + sprom->ofdm2gpo = nvram_getu32("ofdm2gpo", buf, sizeof(buf)); + sprom->ofdm5glpo = nvram_getu32("ofdm5glpo", buf, sizeof(buf)); + sprom->ofdm5gpo = nvram_getu32("ofdm5gpo", buf, sizeof(buf)); + sprom->ofdm5ghpo = nvram_getu32("ofdm5ghpo", buf, sizeof(buf)); + + READ_FROM_NVRAM(antenna_gain.ghz24.a0, "ag0", buf); + READ_FROM_NVRAM(antenna_gain.ghz24.a1, "ag1", buf); + READ_FROM_NVRAM(antenna_gain.ghz24.a2, "ag2", buf); + READ_FROM_NVRAM(antenna_gain.ghz24.a3, "ag3", buf); + memcpy(&sprom->antenna_gain.ghz5, &sprom->antenna_gain.ghz24, + sizeof(sprom->antenna_gain.ghz5)); + + if (nvram_getprefix(prefix, "boardflags", buf, sizeof(buf)) >= 0) { boardflags = simple_strtoul(buf, NULL, 0); if (boardflags) { sprom->boardflags_lo = (boardflags & 0x0000FFFFU); sprom->boardflags_hi = (boardflags & 0xFFFF0000U) >> 16; } } - if (nvram_getenv("boardflags2", buf, sizeof(buf)) >= 0) { + if (nvram_getprefix(prefix, "boardflags2", buf, sizeof(buf)) >= 0) { boardflags = simple_strtoul(buf, NULL, 0); if (boardflags) { sprom->boardflags2_lo = (boardflags & 0x0000FFFFU); @@ -141,6 +206,22 @@ static void bcm47xx_fill_sprom(struct ssb_sprom *sprom) } } +int bcm47xx_get_sprom(struct ssb_bus *bus, struct ssb_sprom *out) +{ + char prefix[10]; + + if (bus->bustype == SSB_BUSTYPE_PCI) { + snprintf(prefix, sizeof(prefix), "pci/%u/%u/", + bus->host_pci->bus->number + 1, + PCI_SLOT(bus->host_pci->devfn)); + bcm47xx_fill_sprom(out, prefix); + return 0; + } else { + printk(KERN_WARNING "bcm47xx: unable to fill SPROM for given bustype.\n"); + return -EINVAL; + } +} + static int bcm47xx_get_invariants(struct ssb_bus *bus, struct ssb_init_invariants *iv) { @@ -158,7 +239,7 @@ static int bcm47xx_get_invariants(struct ssb_bus *bus, if (nvram_getenv("boardrev", buf, sizeof(buf)) >= 0) iv->boardinfo.rev = (u16)simple_strtoul(buf, NULL, 0); - bcm47xx_fill_sprom(&iv->sprom); + bcm47xx_fill_sprom(&iv->sprom, NULL); if (nvram_getenv("cardbus", buf, sizeof(buf)) >= 0) iv->has_cardbus_slot = !!simple_strtoul(buf, NULL, 10); @@ -172,6 +253,11 @@ void __init plat_mem_setup(void) char buf[100]; struct ssb_mipscore *mcore; + err = ssb_arch_register_fallback_sprom(&bcm47xx_get_sprom); + if (err) + printk(KERN_WARNING "bcm47xx: someone else already registered" + " a ssb SPROM callback handler (err %d)\n", err); + err = ssb_bus_ssbbus_register(&ssb_bcm47xx, SSB_ENUM_BASE, bcm47xx_get_invariants); if (err) diff --git a/arch/mips/bcm63xx/boards/board_bcm963xx.c b/arch/mips/bcm63xx/boards/board_bcm963xx.c index 8dba8cfb752..40b223b603b 100644 --- a/arch/mips/bcm63xx/boards/board_bcm963xx.c +++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c @@ -643,6 +643,17 @@ static struct ssb_sprom bcm63xx_sprom = { .boardflags_lo = 0x2848, .boardflags_hi = 0x0000, }; + +int bcm63xx_get_fallback_sprom(struct ssb_bus *bus, struct ssb_sprom *out) +{ + if (bus->bustype == SSB_BUSTYPE_PCI) { + memcpy(out, &bcm63xx_sprom, sizeof(struct ssb_sprom)); + return 0; + } else { + printk(KERN_ERR PFX "unable to fill SPROM for given bustype.\n"); + return -EINVAL; + } +} #endif /* @@ -793,8 +804,9 @@ void __init board_prom_init(void) if (!board_get_mac_address(bcm63xx_sprom.il0mac)) { memcpy(bcm63xx_sprom.et0mac, bcm63xx_sprom.il0mac, ETH_ALEN); memcpy(bcm63xx_sprom.et1mac, bcm63xx_sprom.il0mac, ETH_ALEN); - if (ssb_arch_set_fallback_sprom(&bcm63xx_sprom) < 0) - printk(KERN_ERR "failed to register fallback SPROM\n"); + if (ssb_arch_register_fallback_sprom( + &bcm63xx_get_fallback_sprom) < 0) + printk(KERN_ERR PFX "failed to register fallback SPROM\n"); } #endif } diff --git a/arch/mips/boot/compressed/calc_vmlinuz_load_addr.c b/arch/mips/boot/compressed/calc_vmlinuz_load_addr.c index 88c9d963be8..9a6243676e2 100644 --- a/arch/mips/boot/compressed/calc_vmlinuz_load_addr.c +++ b/arch/mips/boot/compressed/calc_vmlinuz_load_addr.c @@ -16,8 +16,8 @@ int main(int argc, char *argv[]) { + unsigned long long vmlinux_size, vmlinux_load_addr, vmlinuz_load_addr; struct stat sb; - uint64_t vmlinux_size, vmlinux_load_addr, vmlinuz_load_addr; if (argc != 3) { fprintf(stderr, "Usage: %s <pathname> <vmlinux_load_addr>\n", diff --git a/arch/mips/boot/compressed/uart-alchemy.c b/arch/mips/boot/compressed/uart-alchemy.c index 1bff22fa089..eb063e6dead 100644 --- a/arch/mips/boot/compressed/uart-alchemy.c +++ b/arch/mips/boot/compressed/uart-alchemy.c @@ -3,5 +3,5 @@ void putc(char c) { /* all current (Jan. 2010) in-kernel boards */ - alchemy_uart_putchar(UART0_PHYS_ADDR, c); + alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c); } diff --git a/arch/mips/cavium-octeon/Kconfig b/arch/mips/cavium-octeon/Kconfig index caae2285816..cad555ebeca 100644 --- a/arch/mips/cavium-octeon/Kconfig +++ b/arch/mips/cavium-octeon/Kconfig @@ -1,11 +1,7 @@ -config CAVIUM_OCTEON_SPECIFIC_OPTIONS - bool "Enable Octeon specific options" - depends on CPU_CAVIUM_OCTEON - default "y" +if CPU_CAVIUM_OCTEON config CAVIUM_CN63XXP1 bool "Enable CN63XXP1 errata worarounds" - depends on CAVIUM_OCTEON_SPECIFIC_OPTIONS default "n" help The CN63XXP1 chip requires build time workarounds to @@ -16,7 +12,6 @@ config CAVIUM_CN63XXP1 config CAVIUM_OCTEON_2ND_KERNEL bool "Build the kernel to be used as a 2nd kernel on the same chip" - depends on CAVIUM_OCTEON_SPECIFIC_OPTIONS default "n" help This option configures this kernel to be linked at a different @@ -26,7 +21,6 @@ config CAVIUM_OCTEON_2ND_KERNEL config CAVIUM_OCTEON_HW_FIX_UNALIGNED bool "Enable hardware fixups of unaligned loads and stores" - depends on CAVIUM_OCTEON_SPECIFIC_OPTIONS default "y" help Configure the Octeon hardware to automatically fix unaligned loads @@ -38,7 +32,6 @@ config CAVIUM_OCTEON_HW_FIX_UNALIGNED config CAVIUM_OCTEON_CVMSEG_SIZE int "Number of L1 cache lines reserved for CVMSEG memory" - depends on CAVIUM_OCTEON_SPECIFIC_OPTIONS range 0 54 default 1 help @@ -50,7 +43,6 @@ config CAVIUM_OCTEON_CVMSEG_SIZE config CAVIUM_OCTEON_LOCK_L2 bool "Lock often used kernel code in the L2" - depends on CAVIUM_OCTEON_SPECIFIC_OPTIONS default "y" help Enable locking parts of the kernel into the L2 cache. @@ -93,7 +85,6 @@ config CAVIUM_OCTEON_LOCK_L2_MEMCPY config ARCH_SPARSEMEM_ENABLE def_bool y select SPARSEMEM_STATIC - depends on CPU_CAVIUM_OCTEON config CAVIUM_OCTEON_HELPER def_bool y @@ -107,6 +98,8 @@ config NEED_SG_DMA_LENGTH config SWIOTLB def_bool y - depends on CPU_CAVIUM_OCTEON select IOMMU_HELPER select NEED_SG_DMA_LENGTH + + +endif # CPU_CAVIUM_OCTEON diff --git a/arch/mips/cavium-octeon/csrc-octeon.c b/arch/mips/cavium-octeon/csrc-octeon.c index 26bf71130bf..29d56afbb02 100644 --- a/arch/mips/cavium-octeon/csrc-octeon.c +++ b/arch/mips/cavium-octeon/csrc-octeon.c @@ -105,8 +105,7 @@ unsigned long long notrace sched_clock(void) void __init plat_time_init(void) { clocksource_mips.rating = 300; - clocksource_set_clock(&clocksource_mips, octeon_get_clock_rate()); - clocksource_register(&clocksource_mips); + clocksource_register_hz(&clocksource_mips, octeon_get_clock_rate()); } static u64 octeon_udelay_factor; diff --git a/arch/mips/cavium-octeon/setup.c b/arch/mips/cavium-octeon/setup.c index 0707fae3f0e..2d9028f1474 100644 --- a/arch/mips/cavium-octeon/setup.c +++ b/arch/mips/cavium-octeon/setup.c @@ -288,7 +288,6 @@ void octeon_user_io_init(void) union octeon_cvmemctl cvmmemctl; union cvmx_iob_fau_timeout fau_timeout; union cvmx_pow_nw_tim nm_tim; - uint64_t cvmctl; /* Get the current settings for CP0_CVMMEMCTL_REG */ cvmmemctl.u64 = read_c0_cvmmemctl(); @@ -392,12 +391,6 @@ void octeon_user_io_init(void) CONFIG_CAVIUM_OCTEON_CVMSEG_SIZE, CONFIG_CAVIUM_OCTEON_CVMSEG_SIZE * 128); - /* Move the performance counter interrupts to IRQ 6 */ - cvmctl = read_c0_cvmctl(); - cvmctl &= ~(7 << 7); - cvmctl |= 6 << 7; - write_c0_cvmctl(cvmctl); - /* Set a default for the hardware timeouts */ fau_timeout.u64 = 0; fau_timeout.s.tout_val = 0xfff; diff --git a/arch/mips/cavium-octeon/smp.c b/arch/mips/cavium-octeon/smp.c index ba78b21cc8d..8b606423bbd 100644 --- a/arch/mips/cavium-octeon/smp.c +++ b/arch/mips/cavium-octeon/smp.c @@ -37,13 +37,15 @@ static irqreturn_t mailbox_interrupt(int irq, void *dev_id) uint64_t action; /* Load the mailbox register to figure out what we're supposed to do */ - action = cvmx_read_csr(CVMX_CIU_MBOX_CLRX(coreid)); + action = cvmx_read_csr(CVMX_CIU_MBOX_CLRX(coreid)) & 0xffff; /* Clear the mailbox to clear the interrupt */ cvmx_write_csr(CVMX_CIU_MBOX_CLRX(coreid), action); if (action & SMP_CALL_FUNCTION) smp_call_function_interrupt(); + if (action & SMP_RESCHEDULE_YOURSELF) + scheduler_ipi(); /* Check if we've been told to flush the icache */ if (action & SMP_ICACHE_FLUSH) @@ -200,16 +202,15 @@ void octeon_prepare_cpus(unsigned int max_cpus) if (labi->labi_signature != LABI_SIGNATURE) panic("The bootloader version on this board is incorrect."); #endif - - cvmx_write_csr(CVMX_CIU_MBOX_CLRX(cvmx_get_core_num()), 0xffffffff); + /* + * Only the low order mailbox bits are used for IPIs, leave + * the other bits alone. + */ + cvmx_write_csr(CVMX_CIU_MBOX_CLRX(cvmx_get_core_num()), 0xffff); if (request_irq(OCTEON_IRQ_MBOX0, mailbox_interrupt, IRQF_DISABLED, - "mailbox0", mailbox_interrupt)) { + "SMP-IPI", mailbox_interrupt)) { panic("Cannot request_irq(OCTEON_IRQ_MBOX0)\n"); } - if (request_irq(OCTEON_IRQ_MBOX1, mailbox_interrupt, IRQF_DISABLED, - "mailbox1", mailbox_interrupt)) { - panic("Cannot request_irq(OCTEON_IRQ_MBOX1)\n"); - } } /** diff --git a/arch/mips/configs/lemote2f_defconfig b/arch/mips/configs/lemote2f_defconfig index 167c1d07b80..b6acd2f256b 100644 --- a/arch/mips/configs/lemote2f_defconfig +++ b/arch/mips/configs/lemote2f_defconfig @@ -86,8 +86,8 @@ CONFIG_NET_SCHED=y CONFIG_NET_EMATCH=y CONFIG_NET_CLS_ACT=y CONFIG_BT=m -CONFIG_BT_L2CAP=m -CONFIG_BT_SCO=m +CONFIG_BT_L2CAP=y +CONFIG_BT_SCO=y CONFIG_BT_RFCOMM=m CONFIG_BT_RFCOMM_TTY=y CONFIG_BT_BNEP=m @@ -329,7 +329,7 @@ CONFIG_USB_LED=m CONFIG_USB_GADGET=m CONFIG_USB_GADGET_M66592=y CONFIG_MMC=m -CONFIG_LEDS_CLASS=m +CONFIG_LEDS_CLASS=y CONFIG_STAGING=y # CONFIG_STAGING_EXCLUDE_BUILD is not set CONFIG_FB_SM7XX=y diff --git a/arch/mips/configs/malta_defconfig b/arch/mips/configs/malta_defconfig index 7270f3183bd..5527abbb7de 100644 --- a/arch/mips/configs/malta_defconfig +++ b/arch/mips/configs/malta_defconfig @@ -374,7 +374,7 @@ CONFIG_FB_CIRRUS=y # CONFIG_VGA_CONSOLE is not set CONFIG_FRAMEBUFFER_CONSOLE=y CONFIG_HID=m -CONFIG_LEDS_CLASS=m +CONFIG_LEDS_CLASS=y CONFIG_LEDS_TRIGGER_TIMER=m CONFIG_LEDS_TRIGGER_IDE_DISK=y CONFIG_LEDS_TRIGGER_HEARTBEAT=m diff --git a/arch/mips/configs/mtx1_defconfig b/arch/mips/configs/mtx1_defconfig index a97a42c6b2c..37862b2ce36 100644 --- a/arch/mips/configs/mtx1_defconfig +++ b/arch/mips/configs/mtx1_defconfig @@ -225,8 +225,8 @@ CONFIG_TOSHIBA_FIR=m CONFIG_VLSI_FIR=m CONFIG_MCS_FIR=m CONFIG_BT=m -CONFIG_BT_L2CAP=m -CONFIG_BT_SCO=m +CONFIG_BT_L2CAP=y +CONFIG_BT_SCO=y CONFIG_BT_RFCOMM=m CONFIG_BT_RFCOMM_TTY=y CONFIG_BT_BNEP=m diff --git a/arch/mips/configs/nlm_xlr_defconfig b/arch/mips/configs/nlm_xlr_defconfig new file mode 100644 index 00000000000..e4b399fdaa6 --- /dev/null +++ b/arch/mips/configs/nlm_xlr_defconfig @@ -0,0 +1,574 @@ +CONFIG_NLM_XLR_BOARD=y +CONFIG_HIGHMEM=y +CONFIG_KSM=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=65536 +CONFIG_SMP=y +CONFIG_NO_HZ=y +CONFIG_HIGH_RES_TIMERS=y +CONFIG_PREEMPT_VOLUNTARY=y +CONFIG_KEXEC=y +CONFIG_EXPERIMENTAL=y +CONFIG_CROSS_COMPILE="mips64-unknown-linux-gnu-" +# CONFIG_LOCALVERSION_AUTO is not set +CONFIG_SYSVIPC=y +CONFIG_POSIX_MQUEUE=y +CONFIG_BSD_PROCESS_ACCT=y +CONFIG_BSD_PROCESS_ACCT_V3=y +CONFIG_TASKSTATS=y +CONFIG_TASK_DELAY_ACCT=y +CONFIG_TASK_XACCT=y +CONFIG_TASK_IO_ACCOUNTING=y +CONFIG_AUDIT=y +CONFIG_NAMESPACES=y +CONFIG_SCHED_AUTOGROUP=y +CONFIG_BLK_DEV_INITRD=y +CONFIG_INITRAMFS_SOURCE="usr/dev_file_list usr/rootfs" +CONFIG_RD_BZIP2=y +CONFIG_RD_LZMA=y +CONFIG_INITRAMFS_COMPRESSION_GZIP=y +# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set +CONFIG_EXPERT=y +CONFIG_KALLSYMS_ALL=y +# CONFIG_ELF_CORE is not set +# CONFIG_PCSPKR_PLATFORM is not set +# CONFIG_PERF_EVENTS is not set +# CONFIG_COMPAT_BRK is not set +CONFIG_PROFILING=y +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +CONFIG_MODVERSIONS=y +CONFIG_MODULE_SRCVERSION_ALL=y +CONFIG_BLK_DEV_INTEGRITY=y +CONFIG_BINFMT_MISC=m +CONFIG_PM_RUNTIME=y +CONFIG_PM_DEBUG=y +CONFIG_PACKET=y +CONFIG_UNIX=y +CONFIG_XFRM_USER=m +CONFIG_NET_KEY=m +CONFIG_INET=y +CONFIG_IP_MULTICAST=y +CONFIG_IP_ADVANCED_ROUTER=y +CONFIG_IP_MULTIPLE_TABLES=y +CONFIG_IP_ROUTE_MULTIPATH=y +CONFIG_IP_ROUTE_VERBOSE=y +CONFIG_NET_IPIP=m +CONFIG_IP_MROUTE=y +CONFIG_IP_PIMSM_V1=y +CONFIG_IP_PIMSM_V2=y +CONFIG_SYN_COOKIES=y +CONFIG_INET_AH=m +CONFIG_INET_ESP=m +CONFIG_INET_IPCOMP=m +CONFIG_INET_XFRM_MODE_TRANSPORT=m +CONFIG_INET_XFRM_MODE_TUNNEL=m +CONFIG_INET_XFRM_MODE_BEET=m +CONFIG_TCP_CONG_ADVANCED=y +CONFIG_TCP_CONG_HSTCP=m +CONFIG_TCP_CONG_HYBLA=m +CONFIG_TCP_CONG_SCALABLE=m +CONFIG_TCP_CONG_LP=m +CONFIG_TCP_CONG_VENO=m +CONFIG_TCP_CONG_YEAH=m +CONFIG_TCP_CONG_ILLINOIS=m +CONFIG_TCP_MD5SIG=y +CONFIG_IPV6=y +CONFIG_IPV6_PRIVACY=y +CONFIG_INET6_AH=m +CONFIG_INET6_ESP=m +CONFIG_INET6_IPCOMP=m +CONFIG_INET6_XFRM_MODE_TRANSPORT=m +CONFIG_INET6_XFRM_MODE_TUNNEL=m +CONFIG_INET6_XFRM_MODE_BEET=m +CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION=m +CONFIG_IPV6_SIT=m +CONFIG_IPV6_TUNNEL=m +CONFIG_IPV6_MULTIPLE_TABLES=y +CONFIG_NETLABEL=y +CONFIG_NETFILTER=y +CONFIG_NF_CONNTRACK=m +CONFIG_NF_CONNTRACK_SECMARK=y +CONFIG_NF_CONNTRACK_EVENTS=y +CONFIG_NF_CT_PROTO_UDPLITE=m +CONFIG_NF_CONNTRACK_AMANDA=m +CONFIG_NF_CONNTRACK_FTP=m +CONFIG_NF_CONNTRACK_H323=m +CONFIG_NF_CONNTRACK_IRC=m +CONFIG_NF_CONNTRACK_NETBIOS_NS=m +CONFIG_NF_CONNTRACK_PPTP=m +CONFIG_NF_CONNTRACK_SANE=m +CONFIG_NF_CONNTRACK_SIP=m +CONFIG_NF_CONNTRACK_TFTP=m +CONFIG_NF_CT_NETLINK=m +CONFIG_NETFILTER_TPROXY=m +CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m +CONFIG_NETFILTER_XT_TARGET_CONNMARK=m +CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=m +CONFIG_NETFILTER_XT_TARGET_DSCP=m +CONFIG_NETFILTER_XT_TARGET_MARK=m +CONFIG_NETFILTER_XT_TARGET_NFLOG=m +CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m +CONFIG_NETFILTER_XT_TARGET_NOTRACK=m +CONFIG_NETFILTER_XT_TARGET_TPROXY=m +CONFIG_NETFILTER_XT_TARGET_TRACE=m +CONFIG_NETFILTER_XT_TARGET_SECMARK=m +CONFIG_NETFILTER_XT_TARGET_TCPMSS=m +CONFIG_NETFILTER_XT_MATCH_CLUSTER=m +CONFIG_NETFILTER_XT_MATCH_COMMENT=m +CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m +CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=m +CONFIG_NETFILTER_XT_MATCH_CONNMARK=m +CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m +CONFIG_NETFILTER_XT_MATCH_DSCP=m +CONFIG_NETFILTER_XT_MATCH_ESP=m +CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m +CONFIG_NETFILTER_XT_MATCH_HELPER=m +CONFIG_NETFILTER_XT_MATCH_IPRANGE=m +CONFIG_NETFILTER_XT_MATCH_LENGTH=m +CONFIG_NETFILTER_XT_MATCH_LIMIT=m +CONFIG_NETFILTER_XT_MATCH_MAC=m +CONFIG_NETFILTER_XT_MATCH_MARK=m +CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m +CONFIG_NETFILTER_XT_MATCH_OSF=m +CONFIG_NETFILTER_XT_MATCH_OWNER=m +CONFIG_NETFILTER_XT_MATCH_POLICY=m +CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m +CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m +CONFIG_NETFILTER_XT_MATCH_QUOTA=m +CONFIG_NETFILTER_XT_MATCH_RATEEST=m +CONFIG_NETFILTER_XT_MATCH_REALM=m +CONFIG_NETFILTER_XT_MATCH_RECENT=m +CONFIG_NETFILTER_XT_MATCH_SOCKET=m +CONFIG_NETFILTER_XT_MATCH_STATE=m +CONFIG_NETFILTER_XT_MATCH_STATISTIC=m +CONFIG_NETFILTER_XT_MATCH_STRING=m +CONFIG_NETFILTER_XT_MATCH_TCPMSS=m +CONFIG_NETFILTER_XT_MATCH_TIME=m +CONFIG_NETFILTER_XT_MATCH_U32=m +CONFIG_IP_VS=m +CONFIG_IP_VS_IPV6=y +CONFIG_IP_VS_PROTO_TCP=y +CONFIG_IP_VS_PROTO_UDP=y +CONFIG_IP_VS_PROTO_ESP=y +CONFIG_IP_VS_PROTO_AH=y +CONFIG_IP_VS_RR=m +CONFIG_IP_VS_WRR=m +CONFIG_IP_VS_LC=m +CONFIG_IP_VS_WLC=m +CONFIG_IP_VS_LBLC=m +CONFIG_IP_VS_LBLCR=m +CONFIG_IP_VS_DH=m +CONFIG_IP_VS_SH=m +CONFIG_IP_VS_SED=m +CONFIG_IP_VS_NQ=m +CONFIG_IP_VS_FTP=m +CONFIG_NF_CONNTRACK_IPV4=m +CONFIG_IP_NF_QUEUE=m +CONFIG_IP_NF_IPTABLES=m +CONFIG_IP_NF_MATCH_AH=m +CONFIG_IP_NF_MATCH_ECN=m +CONFIG_IP_NF_MATCH_TTL=m +CONFIG_IP_NF_FILTER=m +CONFIG_IP_NF_TARGET_REJECT=m +CONFIG_IP_NF_TARGET_LOG=m +CONFIG_IP_NF_TARGET_ULOG=m +CONFIG_NF_NAT=m +CONFIG_IP_NF_TARGET_MASQUERADE=m +CONFIG_IP_NF_TARGET_NETMAP=m +CONFIG_IP_NF_TARGET_REDIRECT=m +CONFIG_IP_NF_MANGLE=m +CONFIG_IP_NF_TARGET_CLUSTERIP=m +CONFIG_IP_NF_TARGET_ECN=m +CONFIG_IP_NF_TARGET_TTL=m +CONFIG_IP_NF_RAW=m +CONFIG_IP_NF_SECURITY=m +CONFIG_IP_NF_ARPTABLES=m +CONFIG_IP_NF_ARPFILTER=m +CONFIG_IP_NF_ARP_MANGLE=m +CONFIG_NF_CONNTRACK_IPV6=m +CONFIG_IP6_NF_QUEUE=m +CONFIG_IP6_NF_IPTABLES=m +CONFIG_IP6_NF_MATCH_AH=m +CONFIG_IP6_NF_MATCH_EUI64=m +CONFIG_IP6_NF_MATCH_FRAG=m +CONFIG_IP6_NF_MATCH_OPTS=m +CONFIG_IP6_NF_MATCH_HL=m +CONFIG_IP6_NF_MATCH_IPV6HEADER=m +CONFIG_IP6_NF_MATCH_MH=m +CONFIG_IP6_NF_MATCH_RT=m +CONFIG_IP6_NF_TARGET_HL=m +CONFIG_IP6_NF_TARGET_LOG=m +CONFIG_IP6_NF_FILTER=m +CONFIG_IP6_NF_TARGET_REJECT=m +CONFIG_IP6_NF_MANGLE=m +CONFIG_IP6_NF_RAW=m +CONFIG_IP6_NF_SECURITY=m +CONFIG_DECNET_NF_GRABULATOR=m +CONFIG_BRIDGE_NF_EBTABLES=m +CONFIG_BRIDGE_EBT_BROUTE=m +CONFIG_BRIDGE_EBT_T_FILTER=m +CONFIG_BRIDGE_EBT_T_NAT=m +CONFIG_BRIDGE_EBT_802_3=m +CONFIG_BRIDGE_EBT_AMONG=m +CONFIG_BRIDGE_EBT_ARP=m +CONFIG_BRIDGE_EBT_IP=m +CONFIG_BRIDGE_EBT_IP6=m +CONFIG_BRIDGE_EBT_LIMIT=m +CONFIG_BRIDGE_EBT_MARK=m +CONFIG_BRIDGE_EBT_PKTTYPE=m +CONFIG_BRIDGE_EBT_STP=m +CONFIG_BRIDGE_EBT_VLAN=m +CONFIG_BRIDGE_EBT_ARPREPLY=m +CONFIG_BRIDGE_EBT_DNAT=m +CONFIG_BRIDGE_EBT_MARK_T=m +CONFIG_BRIDGE_EBT_REDIRECT=m +CONFIG_BRIDGE_EBT_SNAT=m +CONFIG_BRIDGE_EBT_LOG=m +CONFIG_BRIDGE_EBT_ULOG=m +CONFIG_BRIDGE_EBT_NFLOG=m +CONFIG_IP_DCCP=m +CONFIG_RDS=m +CONFIG_RDS_TCP=m +CONFIG_TIPC=m +CONFIG_ATM=m +CONFIG_ATM_CLIP=m +CONFIG_ATM_LANE=m +CONFIG_ATM_MPOA=m +CONFIG_ATM_BR2684=m +CONFIG_BRIDGE=m +CONFIG_VLAN_8021Q=m +CONFIG_VLAN_8021Q_GVRP=y +CONFIG_DECNET=m +CONFIG_LLC2=m +CONFIG_IPX=m +CONFIG_ATALK=m +CONFIG_DEV_APPLETALK=m +CONFIG_IPDDP=m +CONFIG_IPDDP_ENCAP=y +CONFIG_IPDDP_DECAP=y +CONFIG_X25=m +CONFIG_LAPB=m +CONFIG_ECONET=m +CONFIG_ECONET_AUNUDP=y +CONFIG_ECONET_NATIVE=y +CONFIG_WAN_ROUTER=m +CONFIG_PHONET=m +CONFIG_IEEE802154=m +CONFIG_NET_SCHED=y +CONFIG_NET_SCH_CBQ=m +CONFIG_NET_SCH_HTB=m +CONFIG_NET_SCH_HFSC=m +CONFIG_NET_SCH_ATM=m +CONFIG_NET_SCH_PRIO=m +CONFIG_NET_SCH_MULTIQ=m +CONFIG_NET_SCH_RED=m +CONFIG_NET_SCH_SFQ=m +CONFIG_NET_SCH_TEQL=m +CONFIG_NET_SCH_TBF=m +CONFIG_NET_SCH_GRED=m +CONFIG_NET_SCH_DSMARK=m +CONFIG_NET_SCH_NETEM=m +CONFIG_NET_SCH_DRR=m +CONFIG_NET_SCH_INGRESS=m +CONFIG_NET_CLS_BASIC=m +CONFIG_NET_CLS_TCINDEX=m +CONFIG_NET_CLS_ROUTE4=m +CONFIG_NET_CLS_FW=m +CONFIG_NET_CLS_U32=m +CONFIG_CLS_U32_MARK=y +CONFIG_NET_CLS_RSVP=m +CONFIG_NET_CLS_RSVP6=m +CONFIG_NET_CLS_FLOW=m +CONFIG_NET_EMATCH=y +CONFIG_NET_EMATCH_CMP=m +CONFIG_NET_EMATCH_NBYTE=m +CONFIG_NET_EMATCH_U32=m +CONFIG_NET_EMATCH_META=m +CONFIG_NET_EMATCH_TEXT=m +CONFIG_NET_CLS_ACT=y +CONFIG_NET_ACT_POLICE=m +CONFIG_NET_ACT_GACT=m +CONFIG_GACT_PROB=y +CONFIG_NET_ACT_MIRRED=m +CONFIG_NET_ACT_IPT=m +CONFIG_NET_ACT_NAT=m +CONFIG_NET_ACT_PEDIT=m +CONFIG_NET_ACT_SIMP=m +CONFIG_NET_ACT_SKBEDIT=m +CONFIG_DCB=y +CONFIG_NET_PKTGEN=m +# CONFIG_WIRELESS is not set +CONFIG_DEVTMPFS=y +CONFIG_DEVTMPFS_MOUNT=y +# CONFIG_STANDALONE is not set +CONFIG_CONNECTOR=y +CONFIG_MTD=m +CONFIG_BLK_DEV_LOOP=y +CONFIG_BLK_DEV_CRYPTOLOOP=m +CONFIG_BLK_DEV_NBD=m +CONFIG_BLK_DEV_OSD=m +CONFIG_BLK_DEV_RAM=y +CONFIG_BLK_DEV_RAM_SIZE=65536 +CONFIG_CDROM_PKTCDVD=y +CONFIG_MISC_DEVICES=y +CONFIG_RAID_ATTRS=m +CONFIG_SCSI=y +CONFIG_SCSI_TGT=m +CONFIG_BLK_DEV_SD=y +CONFIG_CHR_DEV_ST=m +CONFIG_CHR_DEV_OSST=m +CONFIG_BLK_DEV_SR=y +CONFIG_CHR_DEV_SG=y +CONFIG_CHR_DEV_SCH=m +CONFIG_SCSI_MULTI_LUN=y +CONFIG_SCSI_CONSTANTS=y +CONFIG_SCSI_LOGGING=y +CONFIG_SCSI_SCAN_ASYNC=y +CONFIG_SCSI_SPI_ATTRS=m +CONFIG_SCSI_FC_TGT_ATTRS=y +CONFIG_SCSI_SAS_LIBSAS=m +CONFIG_SCSI_SRP_ATTRS=m +CONFIG_SCSI_SRP_TGT_ATTRS=y +CONFIG_ISCSI_TCP=m +CONFIG_LIBFCOE=m +CONFIG_SCSI_DEBUG=m +CONFIG_SCSI_DH=y +CONFIG_SCSI_DH_RDAC=m +CONFIG_SCSI_DH_HP_SW=m +CONFIG_SCSI_DH_EMC=m +CONFIG_SCSI_DH_ALUA=m +CONFIG_SCSI_OSD_INITIATOR=m +CONFIG_SCSI_OSD_ULD=m +# CONFIG_INPUT_MOUSEDEV is not set +CONFIG_INPUT_EVDEV=y +CONFIG_INPUT_EVBUG=m +# CONFIG_INPUT_KEYBOARD is not set +# CONFIG_INPUT_MOUSE is not set +# CONFIG_SERIO_I8042 is not set +CONFIG_SERIO_SERPORT=m +CONFIG_SERIO_LIBPS2=y +CONFIG_SERIO_RAW=m +CONFIG_VT_HW_CONSOLE_BINDING=y +CONFIG_DEVPTS_MULTIPLE_INSTANCES=y +CONFIG_LEGACY_PTY_COUNT=0 +CONFIG_SERIAL_NONSTANDARD=y +CONFIG_N_HDLC=m +# CONFIG_DEVKMEM is not set +CONFIG_STALDRV=y +CONFIG_SERIAL_8250=y +CONFIG_SERIAL_8250_CONSOLE=y +CONFIG_SERIAL_8250_NR_UARTS=48 +CONFIG_SERIAL_8250_EXTENDED=y +CONFIG_SERIAL_8250_MANY_PORTS=y +CONFIG_SERIAL_8250_SHARE_IRQ=y +CONFIG_SERIAL_8250_RSA=y +CONFIG_HW_RANDOM=y +CONFIG_HW_RANDOM_TIMERIOMEM=m +CONFIG_RAW_DRIVER=m +# CONFIG_HWMON is not set +# CONFIG_VGA_CONSOLE is not set +# CONFIG_HID_SUPPORT is not set +# CONFIG_USB_SUPPORT is not set +CONFIG_UIO=y +CONFIG_UIO_PDRV=m +CONFIG_UIO_PDRV_GENIRQ=m +CONFIG_EXT2_FS=y +CONFIG_EXT2_FS_XATTR=y +CONFIG_EXT2_FS_POSIX_ACL=y +CONFIG_EXT2_FS_SECURITY=y +CONFIG_EXT3_FS=y +CONFIG_EXT3_FS_POSIX_ACL=y +CONFIG_EXT3_FS_SECURITY=y +CONFIG_EXT4_FS=y +CONFIG_EXT4_FS_POSIX_ACL=y +CONFIG_EXT4_FS_SECURITY=y +CONFIG_GFS2_FS=m +CONFIG_GFS2_FS_LOCKING_DLM=y +CONFIG_OCFS2_FS=m +CONFIG_BTRFS_FS=m +CONFIG_BTRFS_FS_POSIX_ACL=y +CONFIG_NILFS2_FS=m +CONFIG_QUOTA_NETLINK_INTERFACE=y +# CONFIG_PRINT_QUOTA_WARNING is not set +CONFIG_QFMT_V1=m +CONFIG_QFMT_V2=m +CONFIG_AUTOFS4_FS=m +CONFIG_FUSE_FS=y +CONFIG_CUSE=m +CONFIG_FSCACHE=m +CONFIG_FSCACHE_STATS=y +CONFIG_FSCACHE_HISTOGRAM=y +CONFIG_CACHEFILES=m +CONFIG_ISO9660_FS=m +CONFIG_JOLIET=y +CONFIG_ZISOFS=y +CONFIG_UDF_FS=m +CONFIG_MSDOS_FS=m +CONFIG_VFAT_FS=m +CONFIG_NTFS_FS=m +CONFIG_PROC_KCORE=y +CONFIG_TMPFS=y +CONFIG_TMPFS_POSIX_ACL=y +CONFIG_CONFIGFS_FS=y +CONFIG_ADFS_FS=m +CONFIG_AFFS_FS=m +CONFIG_ECRYPT_FS=y +CONFIG_HFS_FS=m +CONFIG_HFSPLUS_FS=m +CONFIG_BEFS_FS=m +CONFIG_BFS_FS=m +CONFIG_EFS_FS=m +CONFIG_CRAMFS=m +CONFIG_SQUASHFS=m +CONFIG_VXFS_FS=m +CONFIG_MINIX_FS=m +CONFIG_OMFS_FS=m +CONFIG_HPFS_FS=m +CONFIG_QNX4FS_FS=m +CONFIG_ROMFS_FS=m +CONFIG_SYSV_FS=m +CONFIG_UFS_FS=m +CONFIG_EXOFS_FS=m +CONFIG_NFS_FS=m +CONFIG_NFS_V3=y +CONFIG_NFS_V3_ACL=y +CONFIG_NFS_V4=y +CONFIG_NFS_FSCACHE=y +CONFIG_NFSD=m +CONFIG_NFSD_V3_ACL=y +CONFIG_NFSD_V4=y +CONFIG_CIFS=m +CONFIG_CIFS_WEAK_PW_HASH=y +CONFIG_CIFS_UPCALL=y +CONFIG_CIFS_XATTR=y +CONFIG_CIFS_POSIX=y +CONFIG_CIFS_DFS_UPCALL=y +CONFIG_CIFS_EXPERIMENTAL=y +CONFIG_NCP_FS=m +CONFIG_NCPFS_PACKET_SIGNING=y +CONFIG_NCPFS_IOCTL_LOCKING=y +CONFIG_NCPFS_STRONG=y +CONFIG_NCPFS_NFS_NS=y +CONFIG_NCPFS_OS2_NS=y +CONFIG_NCPFS_NLS=y +CONFIG_NCPFS_EXTRAS=y +CONFIG_CODA_FS=m +CONFIG_AFS_FS=m +CONFIG_PARTITION_ADVANCED=y +CONFIG_ACORN_PARTITION=y +CONFIG_ACORN_PARTITION_ICS=y +CONFIG_ACORN_PARTITION_RISCIX=y +CONFIG_OSF_PARTITION=y +CONFIG_AMIGA_PARTITION=y +CONFIG_ATARI_PARTITION=y +CONFIG_MAC_PARTITION=y +CONFIG_BSD_DISKLABEL=y +CONFIG_MINIX_SUBPARTITION=y +CONFIG_SOLARIS_X86_PARTITION=y +CONFIG_UNIXWARE_DISKLABEL=y +CONFIG_LDM_PARTITION=y +CONFIG_SGI_PARTITION=y +CONFIG_ULTRIX_PARTITION=y +CONFIG_SUN_PARTITION=y +CONFIG_KARMA_PARTITION=y +CONFIG_EFI_PARTITION=y +CONFIG_SYSV68_PARTITION=y +CONFIG_NLS=y +CONFIG_NLS_DEFAULT="cp437" +CONFIG_NLS_CODEPAGE_437=m +CONFIG_NLS_CODEPAGE_737=m +CONFIG_NLS_CODEPAGE_775=m +CONFIG_NLS_CODEPAGE_850=m +CONFIG_NLS_CODEPAGE_852=m +CONFIG_NLS_CODEPAGE_855=m +CONFIG_NLS_CODEPAGE_857=m +CONFIG_NLS_CODEPAGE_860=m +CONFIG_NLS_CODEPAGE_861=m +CONFIG_NLS_CODEPAGE_862=m +CONFIG_NLS_CODEPAGE_863=m +CONFIG_NLS_CODEPAGE_864=m +CONFIG_NLS_CODEPAGE_865=m +CONFIG_NLS_CODEPAGE_866=m +CONFIG_NLS_CODEPAGE_869=m +CONFIG_NLS_CODEPAGE_936=m +CONFIG_NLS_CODEPAGE_950=m +CONFIG_NLS_CODEPAGE_932=m +CONFIG_NLS_CODEPAGE_949=m +CONFIG_NLS_CODEPAGE_874=m +CONFIG_NLS_ISO8859_8=m +CONFIG_NLS_CODEPAGE_1250=m +CONFIG_NLS_CODEPAGE_1251=m +CONFIG_NLS_ASCII=m +CONFIG_NLS_ISO8859_1=m +CONFIG_NLS_ISO8859_2=m +CONFIG_NLS_ISO8859_3=m +CONFIG_NLS_ISO8859_4=m +CONFIG_NLS_ISO8859_5=m +CONFIG_NLS_ISO8859_6=m +CONFIG_NLS_ISO8859_7=m +CONFIG_NLS_ISO8859_9=m +CONFIG_NLS_ISO8859_13=m +CONFIG_NLS_ISO8859_14=m +CONFIG_NLS_ISO8859_15=m +CONFIG_NLS_KOI8_R=m +CONFIG_NLS_KOI8_U=m +CONFIG_PRINTK_TIME=y +# CONFIG_ENABLE_WARN_DEPRECATED is not set +# CONFIG_ENABLE_MUST_CHECK is not set +CONFIG_UNUSED_SYMBOLS=y +CONFIG_DEBUG_KERNEL=y +CONFIG_DETECT_HUNG_TASK=y +CONFIG_SCHEDSTATS=y +CONFIG_TIMER_STATS=y +CONFIG_DEBUG_INFO=y +CONFIG_DEBUG_MEMORY_INIT=y +CONFIG_SYSCTL_SYSCALL_CHECK=y +CONFIG_SCHED_TRACER=y +CONFIG_BLK_DEV_IO_TRACE=y +CONFIG_KGDB=y +CONFIG_SECURITY=y +CONFIG_SECURITY_NETWORK=y +CONFIG_LSM_MMAP_MIN_ADDR=0 +CONFIG_SECURITY_SELINUX=y +CONFIG_SECURITY_SELINUX_BOOTPARAM=y +CONFIG_SECURITY_SELINUX_BOOTPARAM_VALUE=0 +CONFIG_SECURITY_SELINUX_DISABLE=y +CONFIG_SECURITY_SMACK=y +CONFIG_SECURITY_TOMOYO=y +CONFIG_CRYPTO_NULL=m +CONFIG_CRYPTO_CRYPTD=m +CONFIG_CRYPTO_TEST=m +CONFIG_CRYPTO_CCM=m +CONFIG_CRYPTO_GCM=m +CONFIG_CRYPTO_CTS=m +CONFIG_CRYPTO_LRW=m +CONFIG_CRYPTO_PCBC=m +CONFIG_CRYPTO_XTS=m +CONFIG_CRYPTO_HMAC=y +CONFIG_CRYPTO_XCBC=m +CONFIG_CRYPTO_VMAC=m +CONFIG_CRYPTO_MICHAEL_MIC=m +CONFIG_CRYPTO_RMD128=m +CONFIG_CRYPTO_RMD160=m +CONFIG_CRYPTO_RMD256=m +CONFIG_CRYPTO_RMD320=m +CONFIG_CRYPTO_SHA256=m +CONFIG_CRYPTO_SHA512=m +CONFIG_CRYPTO_TGR192=m +CONFIG_CRYPTO_WP512=m +CONFIG_CRYPTO_ANUBIS=m +CONFIG_CRYPTO_BLOWFISH=m +CONFIG_CRYPTO_CAMELLIA=m +CONFIG_CRYPTO_CAST5=m +CONFIG_CRYPTO_CAST6=m +CONFIG_CRYPTO_FCRYPT=m +CONFIG_CRYPTO_KHAZAD=m +CONFIG_CRYPTO_SALSA20=m +CONFIG_CRYPTO_SEED=m +CONFIG_CRYPTO_SERPENT=m +CONFIG_CRYPTO_TEA=m +CONFIG_CRYPTO_TWOFISH=m +CONFIG_CRYPTO_ZLIB=m +CONFIG_CRYPTO_LZO=m +CONFIG_CRC_CCITT=m +CONFIG_CRC7=m diff --git a/arch/mips/include/asm/cache.h b/arch/mips/include/asm/cache.h index 650ac9ba734..b4db69fbc40 100644 --- a/arch/mips/include/asm/cache.h +++ b/arch/mips/include/asm/cache.h @@ -17,6 +17,6 @@ #define SMP_CACHE_SHIFT L1_CACHE_SHIFT #define SMP_CACHE_BYTES L1_CACHE_BYTES -#define __read_mostly __attribute__((__section__(".data.read_mostly"))) +#define __read_mostly __attribute__((__section__(".data..read_mostly"))) #endif /* _ASM_CACHE_H */ diff --git a/arch/mips/include/asm/cevt-r4k.h b/arch/mips/include/asm/cevt-r4k.h index fa4328f9124..65f9bdd02f1 100644 --- a/arch/mips/include/asm/cevt-r4k.h +++ b/arch/mips/include/asm/cevt-r4k.h @@ -14,6 +14,9 @@ #ifndef __ASM_CEVT_R4K_H #define __ASM_CEVT_R4K_H +#include <linux/clockchips.h> +#include <asm/time.h> + DECLARE_PER_CPU(struct clock_event_device, mips_clockevent_device); void mips_event_handler(struct clock_event_device *dev); diff --git a/arch/mips/include/asm/cpu.h b/arch/mips/include/asm/cpu.h index 86877539c6e..34c0d3cb116 100644 --- a/arch/mips/include/asm/cpu.h +++ b/arch/mips/include/asm/cpu.h @@ -33,6 +33,7 @@ #define PRID_COMP_TOSHIBA 0x070000 #define PRID_COMP_LSI 0x080000 #define PRID_COMP_LEXRA 0x0b0000 +#define PRID_COMP_NETLOGIC 0x0c0000 #define PRID_COMP_CAVIUM 0x0d0000 #define PRID_COMP_INGENIC 0xd00000 @@ -142,6 +143,31 @@ #define PRID_IMP_JZRISC 0x0200 /* + * These are the PRID's for when 23:16 == PRID_COMP_NETLOGIC + */ +#define PRID_IMP_NETLOGIC_XLR732 0x0000 +#define PRID_IMP_NETLOGIC_XLR716 0x0200 +#define PRID_IMP_NETLOGIC_XLR532 0x0900 +#define PRID_IMP_NETLOGIC_XLR308 0x0600 +#define PRID_IMP_NETLOGIC_XLR532C 0x0800 +#define PRID_IMP_NETLOGIC_XLR516C 0x0a00 +#define PRID_IMP_NETLOGIC_XLR508C 0x0b00 +#define PRID_IMP_NETLOGIC_XLR308C 0x0f00 +#define PRID_IMP_NETLOGIC_XLS608 0x8000 +#define PRID_IMP_NETLOGIC_XLS408 0x8800 +#define PRID_IMP_NETLOGIC_XLS404 0x8c00 +#define PRID_IMP_NETLOGIC_XLS208 0x8e00 +#define PRID_IMP_NETLOGIC_XLS204 0x8f00 +#define PRID_IMP_NETLOGIC_XLS108 0xce00 +#define PRID_IMP_NETLOGIC_XLS104 0xcf00 +#define PRID_IMP_NETLOGIC_XLS616B 0x4000 +#define PRID_IMP_NETLOGIC_XLS608B 0x4a00 +#define PRID_IMP_NETLOGIC_XLS416B 0x4400 +#define PRID_IMP_NETLOGIC_XLS412B 0x4c00 +#define PRID_IMP_NETLOGIC_XLS408B 0x4e00 +#define PRID_IMP_NETLOGIC_XLS404B 0x4f00 + +/* * Definitions for 7:0 on legacy processors */ @@ -234,6 +260,7 @@ enum cpu_type_enum { */ CPU_5KC, CPU_20KC, CPU_25KF, CPU_SB1, CPU_SB1A, CPU_LOONGSON2, CPU_CAVIUM_OCTEON, CPU_CAVIUM_OCTEON_PLUS, CPU_CAVIUM_OCTEON2, + CPU_XLR, CPU_LAST }; diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h index 655f849bd08..7aa37ddfca4 100644 --- a/arch/mips/include/asm/dma-mapping.h +++ b/arch/mips/include/asm/dma-mapping.h @@ -5,7 +5,9 @@ #include <asm/cache.h> #include <asm-generic/dma-coherent.h> +#ifndef CONFIG_SGI_IP27 /* Kludge to fix 2.6.39 build for IP27 */ #include <dma-coherence.h> +#endif extern struct dma_map_ops *mips_dma_map_ops; diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h index f5e85601532..c565b7c3f0b 100644 --- a/arch/mips/include/asm/hugetlb.h +++ b/arch/mips/include/asm/hugetlb.h @@ -70,6 +70,7 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm, static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) { + flush_tlb_mm(vma->vm_mm); } static inline int huge_pte_none(pte_t pte) diff --git a/arch/mips/include/asm/i8253.h b/arch/mips/include/asm/i8253.h index 48bb8237299..9ad011366f7 100644 --- a/arch/mips/include/asm/i8253.h +++ b/arch/mips/include/asm/i8253.h @@ -12,8 +12,13 @@ #define PIT_CH0 0x40 #define PIT_CH2 0x42 +#define PIT_LATCH LATCH + extern raw_spinlock_t i8253_lock; extern void setup_pit_timer(void); +#define inb_pit inb_p +#define outb_pit outb_p + #endif /* __ASM_I8253_H */ diff --git a/arch/mips/include/asm/jump_label.h b/arch/mips/include/asm/jump_label.h index 7622ccf7507..1881b316ca4 100644 --- a/arch/mips/include/asm/jump_label.h +++ b/arch/mips/include/asm/jump_label.h @@ -20,16 +20,18 @@ #define WORD_INSN ".word" #endif -#define JUMP_LABEL(key, label) \ - do { \ - asm goto("1:\tnop\n\t" \ - "nop\n\t" \ - ".pushsection __jump_table, \"a\"\n\t" \ - WORD_INSN " 1b, %l[" #label "], %0\n\t" \ - ".popsection\n\t" \ - : : "i" (key) : : label); \ - } while (0) - +static __always_inline bool arch_static_branch(struct jump_label_key *key) +{ + asm goto("1:\tnop\n\t" + "nop\n\t" + ".pushsection __jump_table, \"aw\"\n\t" + WORD_INSN " 1b, %l[l_yes], %0\n\t" + ".popsection\n\t" + : : "i" (key) : : l_yes); + return false; +l_yes: + return true; +} #endif /* __KERNEL__ */ diff --git a/arch/mips/include/asm/mach-au1x00/au1000.h b/arch/mips/include/asm/mach-au1x00/au1000.h index a6976619160..f260ebed713 100644 --- a/arch/mips/include/asm/mach-au1x00/au1000.h +++ b/arch/mips/include/asm/mach-au1x00/au1000.h @@ -161,6 +161,45 @@ static inline int alchemy_get_cputype(void) return ALCHEMY_CPU_UNKNOWN; } +/* return number of uarts on a given cputype */ +static inline int alchemy_get_uarts(int type) +{ + switch (type) { + case ALCHEMY_CPU_AU1000: + return 4; + case ALCHEMY_CPU_AU1500: + case ALCHEMY_CPU_AU1200: + return 2; + case ALCHEMY_CPU_AU1100: + case ALCHEMY_CPU_AU1550: + return 3; + } + return 0; +} + +/* enable an UART block if it isn't already */ +static inline void alchemy_uart_enable(u32 uart_phys) +{ + void __iomem *addr = (void __iomem *)KSEG1ADDR(uart_phys); + + /* reset, enable clock, deassert reset */ + if ((__raw_readl(addr + 0x100) & 3) != 3) { + __raw_writel(0, addr + 0x100); + wmb(); + __raw_writel(1, addr + 0x100); + wmb(); + } + __raw_writel(3, addr + 0x100); + wmb(); +} + +static inline void alchemy_uart_disable(u32 uart_phys) +{ + void __iomem *addr = (void __iomem *)KSEG1ADDR(uart_phys); + __raw_writel(0, addr + 0x100); /* UART_MOD_CNTRL */ + wmb(); +} + static inline void alchemy_uart_putchar(u32 uart_phys, u8 c) { void __iomem *base = (void __iomem *)KSEG1ADDR(uart_phys); @@ -180,6 +219,20 @@ static inline void alchemy_uart_putchar(u32 uart_phys, u8 c) wmb(); } +/* return number of ethernet MACs on a given cputype */ +static inline int alchemy_get_macs(int type) +{ + switch (type) { + case ALCHEMY_CPU_AU1000: + case ALCHEMY_CPU_AU1500: + case ALCHEMY_CPU_AU1550: + return 2; + case ALCHEMY_CPU_AU1100: + return 1; + } + return 0; +} + /* arch/mips/au1000/common/clocks.c */ extern void set_au1x00_speed(unsigned int new_freq); extern unsigned int get_au1x00_speed(void); @@ -630,38 +683,42 @@ enum soc_au1200_ints { /* * Physical base addresses for integrated peripherals + * 0..au1000 1..au1500 2..au1100 3..au1550 4..au1200 */ +#define AU1000_AC97_PHYS_ADDR 0x10000000 /* 012 */ +#define AU1000_USBD_PHYS_ADDR 0x10200000 /* 0123 */ +#define AU1000_IC0_PHYS_ADDR 0x10400000 /* 01234 */ +#define AU1000_MAC0_PHYS_ADDR 0x10500000 /* 023 */ +#define AU1000_MAC1_PHYS_ADDR 0x10510000 /* 023 */ +#define AU1000_MACEN_PHYS_ADDR 0x10520000 /* 023 */ +#define AU1100_SD0_PHYS_ADDR 0x10600000 /* 24 */ +#define AU1100_SD1_PHYS_ADDR 0x10680000 /* 24 */ +#define AU1000_I2S_PHYS_ADDR 0x11000000 /* 02 */ +#define AU1500_MAC0_PHYS_ADDR 0x11500000 /* 1 */ +#define AU1500_MAC1_PHYS_ADDR 0x11510000 /* 1 */ +#define AU1500_MACEN_PHYS_ADDR 0x11520000 /* 1 */ +#define AU1000_UART0_PHYS_ADDR 0x11100000 /* 01234 */ +#define AU1000_UART1_PHYS_ADDR 0x11200000 /* 0234 */ +#define AU1000_UART2_PHYS_ADDR 0x11300000 /* 0 */ +#define AU1000_UART3_PHYS_ADDR 0x11400000 /* 0123 */ +#define AU1500_GPIO2_PHYS_ADDR 0x11700000 /* 1234 */ +#define AU1000_IC1_PHYS_ADDR 0x11800000 /* 01234 */ +#define AU1000_SYS_PHYS_ADDR 0x11900000 /* 01234 */ +#define AU1000_DMA_PHYS_ADDR 0x14002000 /* 012 */ +#define AU1550_DBDMA_PHYS_ADDR 0x14002000 /* 34 */ +#define AU1550_DBDMA_CONF_PHYS_ADDR 0x14003000 /* 34 */ +#define AU1000_MACDMA0_PHYS_ADDR 0x14004000 /* 0123 */ +#define AU1000_MACDMA1_PHYS_ADDR 0x14004200 /* 0123 */ + + #ifdef CONFIG_SOC_AU1000 #define MEM_PHYS_ADDR 0x14000000 #define STATIC_MEM_PHYS_ADDR 0x14001000 -#define DMA0_PHYS_ADDR 0x14002000 -#define DMA1_PHYS_ADDR 0x14002100 -#define DMA2_PHYS_ADDR 0x14002200 -#define DMA3_PHYS_ADDR 0x14002300 -#define DMA4_PHYS_ADDR 0x14002400 -#define DMA5_PHYS_ADDR 0x14002500 -#define DMA6_PHYS_ADDR 0x14002600 -#define DMA7_PHYS_ADDR 0x14002700 -#define IC0_PHYS_ADDR 0x10400000 -#define IC1_PHYS_ADDR 0x11800000 -#define AC97_PHYS_ADDR 0x10000000 #define USBH_PHYS_ADDR 0x10100000 -#define USBD_PHYS_ADDR 0x10200000 #define IRDA_PHYS_ADDR 0x10300000 -#define MAC0_PHYS_ADDR 0x10500000 -#define MAC1_PHYS_ADDR 0x10510000 -#define MACEN_PHYS_ADDR 0x10520000 -#define MACDMA0_PHYS_ADDR 0x14004000 -#define MACDMA1_PHYS_ADDR 0x14004200 -#define I2S_PHYS_ADDR 0x11000000 -#define UART0_PHYS_ADDR 0x11100000 -#define UART1_PHYS_ADDR 0x11200000 -#define UART2_PHYS_ADDR 0x11300000 -#define UART3_PHYS_ADDR 0x11400000 #define SSI0_PHYS_ADDR 0x11600000 #define SSI1_PHYS_ADDR 0x11680000 -#define SYS_PHYS_ADDR 0x11900000 #define PCMCIA_IO_PHYS_ADDR 0xF00000000ULL #define PCMCIA_ATTR_PHYS_ADDR 0xF40000000ULL #define PCMCIA_MEM_PHYS_ADDR 0xF80000000ULL @@ -672,30 +729,8 @@ enum soc_au1200_ints { #ifdef CONFIG_SOC_AU1500 #define MEM_PHYS_ADDR 0x14000000 #define STATIC_MEM_PHYS_ADDR 0x14001000 -#define DMA0_PHYS_ADDR 0x14002000 -#define DMA1_PHYS_ADDR 0x14002100 -#define DMA2_PHYS_ADDR 0x14002200 -#define DMA3_PHYS_ADDR 0x14002300 -#define DMA4_PHYS_ADDR 0x14002400 -#define DMA5_PHYS_ADDR 0x14002500 -#define DMA6_PHYS_ADDR 0x14002600 -#define DMA7_PHYS_ADDR 0x14002700 -#define IC0_PHYS_ADDR 0x10400000 -#define IC1_PHYS_ADDR 0x11800000 -#define AC97_PHYS_ADDR 0x10000000 #define USBH_PHYS_ADDR 0x10100000 -#define USBD_PHYS_ADDR 0x10200000 #define PCI_PHYS_ADDR 0x14005000 -#define MAC0_PHYS_ADDR 0x11500000 -#define MAC1_PHYS_ADDR 0x11510000 -#define MACEN_PHYS_ADDR 0x11520000 -#define MACDMA0_PHYS_ADDR 0x14004000 -#define MACDMA1_PHYS_ADDR 0x14004200 -#define I2S_PHYS_ADDR 0x11000000 -#define UART0_PHYS_ADDR 0x11100000 -#define UART3_PHYS_ADDR 0x11400000 -#define GPIO2_PHYS_ADDR 0x11700000 -#define SYS_PHYS_ADDR 0x11900000 #define PCI_MEM_PHYS_ADDR 0x400000000ULL #define PCI_IO_PHYS_ADDR 0x500000000ULL #define PCI_CONFIG0_PHYS_ADDR 0x600000000ULL @@ -710,34 +745,10 @@ enum soc_au1200_ints { #ifdef CONFIG_SOC_AU1100 #define MEM_PHYS_ADDR 0x14000000 #define STATIC_MEM_PHYS_ADDR 0x14001000 -#define DMA0_PHYS_ADDR 0x14002000 -#define DMA1_PHYS_ADDR 0x14002100 -#define DMA2_PHYS_ADDR 0x14002200 -#define DMA3_PHYS_ADDR 0x14002300 -#define DMA4_PHYS_ADDR 0x14002400 -#define DMA5_PHYS_ADDR 0x14002500 -#define DMA6_PHYS_ADDR 0x14002600 -#define DMA7_PHYS_ADDR 0x14002700 -#define IC0_PHYS_ADDR 0x10400000 -#define SD0_PHYS_ADDR 0x10600000 -#define SD1_PHYS_ADDR 0x10680000 -#define IC1_PHYS_ADDR 0x11800000 -#define AC97_PHYS_ADDR 0x10000000 #define USBH_PHYS_ADDR 0x10100000 -#define USBD_PHYS_ADDR 0x10200000 #define IRDA_PHYS_ADDR 0x10300000 -#define MAC0_PHYS_ADDR 0x10500000 -#define MACEN_PHYS_ADDR 0x10520000 -#define MACDMA0_PHYS_ADDR 0x14004000 -#define MACDMA1_PHYS_ADDR 0x14004200 -#define I2S_PHYS_ADDR 0x11000000 -#define UART0_PHYS_ADDR 0x11100000 -#define UART1_PHYS_ADDR 0x11200000 -#define UART3_PHYS_ADDR 0x11400000 #define SSI0_PHYS_ADDR 0x11600000 #define SSI1_PHYS_ADDR 0x11680000 -#define GPIO2_PHYS_ADDR 0x11700000 -#define SYS_PHYS_ADDR 0x11900000 #define LCD_PHYS_ADDR 0x15000000 #define PCMCIA_IO_PHYS_ADDR 0xF00000000ULL #define PCMCIA_ATTR_PHYS_ADDR 0xF40000000ULL @@ -749,22 +760,8 @@ enum soc_au1200_ints { #ifdef CONFIG_SOC_AU1550 #define MEM_PHYS_ADDR 0x14000000 #define STATIC_MEM_PHYS_ADDR 0x14001000 -#define IC0_PHYS_ADDR 0x10400000 -#define IC1_PHYS_ADDR 0x11800000 #define USBH_PHYS_ADDR 0x14020000 -#define USBD_PHYS_ADDR 0x10200000 #define PCI_PHYS_ADDR 0x14005000 -#define MAC0_PHYS_ADDR 0x10500000 -#define MAC1_PHYS_ADDR 0x10510000 -#define MACEN_PHYS_ADDR 0x10520000 -#define MACDMA0_PHYS_ADDR 0x14004000 -#define MACDMA1_PHYS_ADDR 0x14004200 -#define UART0_PHYS_ADDR 0x11100000 -#define UART1_PHYS_ADDR 0x11200000 -#define UART3_PHYS_ADDR 0x11400000 -#define GPIO2_PHYS_ADDR 0x11700000 -#define SYS_PHYS_ADDR 0x11900000 -#define DDMA_PHYS_ADDR 0x14002000 #define PE_PHYS_ADDR 0x14008000 #define PSC0_PHYS_ADDR 0x11A00000 #define PSC1_PHYS_ADDR 0x11B00000 @@ -786,19 +783,10 @@ enum soc_au1200_ints { #define STATIC_MEM_PHYS_ADDR 0x14001000 #define AES_PHYS_ADDR 0x10300000 #define CIM_PHYS_ADDR 0x14004000 -#define IC0_PHYS_ADDR 0x10400000 -#define IC1_PHYS_ADDR 0x11800000 #define USBM_PHYS_ADDR 0x14020000 #define USBH_PHYS_ADDR 0x14020100 -#define UART0_PHYS_ADDR 0x11100000 -#define UART1_PHYS_ADDR 0x11200000 -#define GPIO2_PHYS_ADDR 0x11700000 -#define SYS_PHYS_ADDR 0x11900000 -#define DDMA_PHYS_ADDR 0x14002000 #define PSC0_PHYS_ADDR 0x11A00000 #define PSC1_PHYS_ADDR 0x11B00000 -#define SD0_PHYS_ADDR 0x10600000 -#define SD1_PHYS_ADDR 0x10680000 #define LCD_PHYS_ADDR 0x15000000 #define SWCNT_PHYS_ADDR 0x1110010C #define MAEFE_PHYS_ADDR 0x14012000 @@ -835,183 +823,43 @@ enum soc_au1200_ints { #endif -/* Interrupt Controller register offsets */ -#define IC_CFG0RD 0x40 -#define IC_CFG0SET 0x40 -#define IC_CFG0CLR 0x44 -#define IC_CFG1RD 0x48 -#define IC_CFG1SET 0x48 -#define IC_CFG1CLR 0x4C -#define IC_CFG2RD 0x50 -#define IC_CFG2SET 0x50 -#define IC_CFG2CLR 0x54 -#define IC_REQ0INT 0x54 -#define IC_SRCRD 0x58 -#define IC_SRCSET 0x58 -#define IC_SRCCLR 0x5C -#define IC_REQ1INT 0x5C -#define IC_ASSIGNRD 0x60 -#define IC_ASSIGNSET 0x60 -#define IC_ASSIGNCLR 0x64 -#define IC_WAKERD 0x68 -#define IC_WAKESET 0x68 -#define IC_WAKECLR 0x6C -#define IC_MASKRD 0x70 -#define IC_MASKSET 0x70 -#define IC_MASKCLR 0x74 -#define IC_RISINGRD 0x78 -#define IC_RISINGCLR 0x78 -#define IC_FALLINGRD 0x7C -#define IC_FALLINGCLR 0x7C -#define IC_TESTBIT 0x80 - - -/* Interrupt Controller 0 */ -#define IC0_CFG0RD 0xB0400040 -#define IC0_CFG0SET 0xB0400040 -#define IC0_CFG0CLR 0xB0400044 - -#define IC0_CFG1RD 0xB0400048 -#define IC0_CFG1SET 0xB0400048 -#define IC0_CFG1CLR 0xB040004C - -#define IC0_CFG2RD 0xB0400050 -#define IC0_CFG2SET 0xB0400050 -#define IC0_CFG2CLR 0xB0400054 - -#define IC0_REQ0INT 0xB0400054 -#define IC0_SRCRD 0xB0400058 -#define IC0_SRCSET 0xB0400058 -#define IC0_SRCCLR 0xB040005C -#define IC0_REQ1INT 0xB040005C - -#define IC0_ASSIGNRD 0xB0400060 -#define IC0_ASSIGNSET 0xB0400060 -#define IC0_ASSIGNCLR 0xB0400064 - -#define IC0_WAKERD 0xB0400068 -#define IC0_WAKESET 0xB0400068 -#define IC0_WAKECLR 0xB040006C - -#define IC0_MASKRD 0xB0400070 -#define IC0_MASKSET 0xB0400070 -#define IC0_MASKCLR 0xB0400074 - -#define IC0_RISINGRD 0xB0400078 -#define IC0_RISINGCLR 0xB0400078 -#define IC0_FALLINGRD 0xB040007C -#define IC0_FALLINGCLR 0xB040007C - -#define IC0_TESTBIT 0xB0400080 - -/* Interrupt Controller 1 */ -#define IC1_CFG0RD 0xB1800040 -#define IC1_CFG0SET 0xB1800040 -#define IC1_CFG0CLR 0xB1800044 - -#define IC1_CFG1RD 0xB1800048 -#define IC1_CFG1SET 0xB1800048 -#define IC1_CFG1CLR 0xB180004C - -#define IC1_CFG2RD 0xB1800050 -#define IC1_CFG2SET 0xB1800050 -#define IC1_CFG2CLR 0xB1800054 - -#define IC1_REQ0INT 0xB1800054 -#define IC1_SRCRD 0xB1800058 -#define IC1_SRCSET 0xB1800058 -#define IC1_SRCCLR 0xB180005C -#define IC1_REQ1INT 0xB180005C - -#define IC1_ASSIGNRD 0xB1800060 -#define IC1_ASSIGNSET 0xB1800060 -#define IC1_ASSIGNCLR 0xB1800064 - -#define IC1_WAKERD 0xB1800068 -#define IC1_WAKESET 0xB1800068 -#define IC1_WAKECLR 0xB180006C - -#define IC1_MASKRD 0xB1800070 -#define IC1_MASKSET 0xB1800070 -#define IC1_MASKCLR 0xB1800074 - -#define IC1_RISINGRD 0xB1800078 -#define IC1_RISINGCLR 0xB1800078 -#define IC1_FALLINGRD 0xB180007C -#define IC1_FALLINGCLR 0xB180007C - -#define IC1_TESTBIT 0xB1800080 /* Au1000 */ #ifdef CONFIG_SOC_AU1000 -#define UART0_ADDR 0xB1100000 -#define UART3_ADDR 0xB1400000 - #define USB_OHCI_BASE 0x10100000 /* phys addr for ioremap */ #define USB_HOST_CONFIG 0xB017FFFC #define FOR_PLATFORM_C_USB_HOST_INT AU1000_USB_HOST_INT - -#define AU1000_ETH0_BASE 0xB0500000 -#define AU1000_ETH1_BASE 0xB0510000 -#define AU1000_MAC0_ENABLE 0xB0520000 -#define AU1000_MAC1_ENABLE 0xB0520004 -#define NUM_ETH_INTERFACES 2 #endif /* CONFIG_SOC_AU1000 */ /* Au1500 */ #ifdef CONFIG_SOC_AU1500 -#define UART0_ADDR 0xB1100000 -#define UART3_ADDR 0xB1400000 - #define USB_OHCI_BASE 0x10100000 /* phys addr for ioremap */ #define USB_HOST_CONFIG 0xB017fffc #define FOR_PLATFORM_C_USB_HOST_INT AU1500_USB_HOST_INT - -#define AU1500_ETH0_BASE 0xB1500000 -#define AU1500_ETH1_BASE 0xB1510000 -#define AU1500_MAC0_ENABLE 0xB1520000 -#define AU1500_MAC1_ENABLE 0xB1520004 -#define NUM_ETH_INTERFACES 2 #endif /* CONFIG_SOC_AU1500 */ /* Au1100 */ #ifdef CONFIG_SOC_AU1100 -#define UART0_ADDR 0xB1100000 -#define UART3_ADDR 0xB1400000 - #define USB_OHCI_BASE 0x10100000 /* phys addr for ioremap */ #define USB_HOST_CONFIG 0xB017FFFC #define FOR_PLATFORM_C_USB_HOST_INT AU1100_USB_HOST_INT - -#define AU1100_ETH0_BASE 0xB0500000 -#define AU1100_MAC0_ENABLE 0xB0520000 -#define NUM_ETH_INTERFACES 1 #endif /* CONFIG_SOC_AU1100 */ #ifdef CONFIG_SOC_AU1550 -#define UART0_ADDR 0xB1100000 #define USB_OHCI_BASE 0x14020000 /* phys addr for ioremap */ #define USB_OHCI_LEN 0x00060000 #define USB_HOST_CONFIG 0xB4027ffc #define FOR_PLATFORM_C_USB_HOST_INT AU1550_USB_HOST_INT - -#define AU1550_ETH0_BASE 0xB0500000 -#define AU1550_ETH1_BASE 0xB0510000 -#define AU1550_MAC0_ENABLE 0xB0520000 -#define AU1550_MAC1_ENABLE 0xB0520004 -#define NUM_ETH_INTERFACES 2 #endif /* CONFIG_SOC_AU1550 */ #ifdef CONFIG_SOC_AU1200 -#define UART0_ADDR 0xB1100000 - #define USB_UOC_BASE 0x14020020 #define USB_UOC_LEN 0x20 #define USB_OHCI_BASE 0x14020100 @@ -1504,22 +1352,6 @@ enum soc_au1200_ints { #define SYS_PINFUNC_S1B (1 << 2) #endif -#define SYS_TRIOUTRD 0xB1900100 -#define SYS_TRIOUTCLR 0xB1900100 -#define SYS_OUTPUTRD 0xB1900108 -#define SYS_OUTPUTSET 0xB1900108 -#define SYS_OUTPUTCLR 0xB190010C -#define SYS_PINSTATERD 0xB1900110 -#define SYS_PININPUTEN 0xB1900110 - -/* GPIO2, Au1500, Au1550 only */ -#define GPIO2_BASE 0xB1700000 -#define GPIO2_DIR (GPIO2_BASE + 0) -#define GPIO2_OUTPUT (GPIO2_BASE + 8) -#define GPIO2_PINSTATE (GPIO2_BASE + 0xC) -#define GPIO2_INTENABLE (GPIO2_BASE + 0x10) -#define GPIO2_ENABLE (GPIO2_BASE + 0x14) - /* Power Management */ #define SYS_SCRATCH0 0xB1900018 #define SYS_SCRATCH1 0xB190001C @@ -1635,12 +1467,6 @@ enum soc_au1200_ints { # define AC97C_RS (1 << 1) # define AC97C_CE (1 << 0) -/* Secure Digital (SD) Controller */ -#define SD0_XMIT_FIFO 0xB0600000 -#define SD0_RECV_FIFO 0xB0600004 -#define SD1_XMIT_FIFO 0xB0680000 -#define SD1_RECV_FIFO 0xB0680004 - #if defined(CONFIG_SOC_AU1500) || defined(CONFIG_SOC_AU1550) /* Au1500 PCI Controller */ #define Au1500_CFG_BASE 0xB4005000 /* virtual, KSEG1 addr */ diff --git a/arch/mips/include/asm/mach-au1x00/au1000_dma.h b/arch/mips/include/asm/mach-au1x00/au1000_dma.h index c333b4e1cd4..59f5b55b220 100644 --- a/arch/mips/include/asm/mach-au1x00/au1000_dma.h +++ b/arch/mips/include/asm/mach-au1x00/au1000_dma.h @@ -37,10 +37,6 @@ #define NUM_AU1000_DMA_CHANNELS 8 -/* DMA Channel Base Addresses */ -#define DMA_CHANNEL_BASE 0xB4002000 -#define DMA_CHANNEL_LEN 0x00000100 - /* DMA Channel Register Offsets */ #define DMA_MODE_SET 0x00000000 #define DMA_MODE_READ DMA_MODE_SET diff --git a/arch/mips/include/asm/mach-au1x00/au1xxx_dbdma.h b/arch/mips/include/asm/mach-au1x00/au1xxx_dbdma.h index c8a553a36ba..2fdacfe85e2 100644 --- a/arch/mips/include/asm/mach-au1x00/au1xxx_dbdma.h +++ b/arch/mips/include/asm/mach-au1x00/au1xxx_dbdma.h @@ -37,14 +37,6 @@ #ifndef _LANGUAGE_ASSEMBLY -/* - * The DMA base addresses. - * The channels are every 256 bytes (0x0100) from the channel 0 base. - * Interrupt status/enable is bits 15:0 for channels 15 to zero. - */ -#define DDMA_GLOBAL_BASE 0xb4003000 -#define DDMA_CHANNEL_BASE 0xb4002000 - typedef volatile struct dbdma_global { u32 ddma_config; u32 ddma_intstat; diff --git a/arch/mips/include/asm/mach-au1x00/gpio-au1000.h b/arch/mips/include/asm/mach-au1x00/gpio-au1000.h index 62d2f136d94..1f41a522906 100644 --- a/arch/mips/include/asm/mach-au1x00/gpio-au1000.h +++ b/arch/mips/include/asm/mach-au1x00/gpio-au1000.h @@ -24,6 +24,23 @@ #define MAKE_IRQ(intc, off) (AU1000_INTC##intc##_INT_BASE + (off)) +/* GPIO1 registers within SYS_ area */ +#define SYS_TRIOUTRD 0x100 +#define SYS_TRIOUTCLR 0x100 +#define SYS_OUTPUTRD 0x108 +#define SYS_OUTPUTSET 0x108 +#define SYS_OUTPUTCLR 0x10C +#define SYS_PINSTATERD 0x110 +#define SYS_PININPUTEN 0x110 + +/* register offsets within GPIO2 block */ +#define GPIO2_DIR 0x00 +#define GPIO2_OUTPUT 0x08 +#define GPIO2_PINSTATE 0x0C +#define GPIO2_INTENABLE 0x10 +#define GPIO2_ENABLE 0x14 + +struct gpio; static inline int au1000_gpio1_to_irq(int gpio) { @@ -200,23 +217,26 @@ static inline int au1200_irq_to_gpio(int irq) */ static inline void alchemy_gpio1_set_value(int gpio, int v) { + void __iomem *base = (void __iomem *)KSEG1ADDR(AU1000_SYS_PHYS_ADDR); unsigned long mask = 1 << (gpio - ALCHEMY_GPIO1_BASE); unsigned long r = v ? SYS_OUTPUTSET : SYS_OUTPUTCLR; - au_writel(mask, r); - au_sync(); + __raw_writel(mask, base + r); + wmb(); } static inline int alchemy_gpio1_get_value(int gpio) { + void __iomem *base = (void __iomem *)KSEG1ADDR(AU1000_SYS_PHYS_ADDR); unsigned long mask = 1 << (gpio - ALCHEMY_GPIO1_BASE); - return au_readl(SYS_PINSTATERD) & mask; + return __raw_readl(base + SYS_PINSTATERD) & mask; } static inline int alchemy_gpio1_direction_input(int gpio) { + void __iomem *base = (void __iomem *)KSEG1ADDR(AU1000_SYS_PHYS_ADDR); unsigned long mask = 1 << (gpio - ALCHEMY_GPIO1_BASE); - au_writel(mask, SYS_TRIOUTCLR); - au_sync(); + __raw_writel(mask, base + SYS_TRIOUTCLR); + wmb(); return 0; } @@ -257,27 +277,31 @@ static inline int alchemy_gpio1_to_irq(int gpio) */ static inline void __alchemy_gpio2_mod_dir(int gpio, int to_out) { + void __iomem *base = (void __iomem *)KSEG1ADDR(AU1500_GPIO2_PHYS_ADDR); unsigned long mask = 1 << (gpio - ALCHEMY_GPIO2_BASE); - unsigned long d = au_readl(GPIO2_DIR); + unsigned long d = __raw_readl(base + GPIO2_DIR); + if (to_out) d |= mask; else d &= ~mask; - au_writel(d, GPIO2_DIR); - au_sync(); + __raw_writel(d, base + GPIO2_DIR); + wmb(); } static inline void alchemy_gpio2_set_value(int gpio, int v) { + void __iomem *base = (void __iomem *)KSEG1ADDR(AU1500_GPIO2_PHYS_ADDR); unsigned long mask; mask = ((v) ? 0x00010001 : 0x00010000) << (gpio - ALCHEMY_GPIO2_BASE); - au_writel(mask, GPIO2_OUTPUT); - au_sync(); + __raw_writel(mask, base + GPIO2_OUTPUT); + wmb(); } static inline int alchemy_gpio2_get_value(int gpio) { - return au_readl(GPIO2_PINSTATE) & (1 << (gpio - ALCHEMY_GPIO2_BASE)); + void __iomem *base = (void __iomem *)KSEG1ADDR(AU1500_GPIO2_PHYS_ADDR); + return __raw_readl(base + GPIO2_PINSTATE) & (1 << (gpio - ALCHEMY_GPIO2_BASE)); } static inline int alchemy_gpio2_direction_input(int gpio) @@ -329,21 +353,23 @@ static inline int alchemy_gpio2_to_irq(int gpio) */ static inline void alchemy_gpio1_input_enable(void) { - au_writel(0, SYS_PININPUTEN); /* the write op is key */ - au_sync(); + void __iomem *base = (void __iomem *)KSEG1ADDR(AU1000_SYS_PHYS_ADDR); + __raw_writel(0, base + SYS_PININPUTEN); /* the write op is key */ + wmb(); } /* GPIO2 shared interrupts and control */ static inline void __alchemy_gpio2_mod_int(int gpio2, int en) { - unsigned long r = au_readl(GPIO2_INTENABLE); + void __iomem *base = (void __iomem *)KSEG1ADDR(AU1500_GPIO2_PHYS_ADDR); + unsigned long r = __raw_readl(base + GPIO2_INTENABLE); if (en) r |= 1 << gpio2; else r &= ~(1 << gpio2); - au_writel(r, GPIO2_INTENABLE); - au_sync(); + __raw_writel(r, base + GPIO2_INTENABLE); + wmb(); } /** @@ -418,10 +444,11 @@ static inline void alchemy_gpio2_disable_int(int gpio2) */ static inline void alchemy_gpio2_enable(void) { - au_writel(3, GPIO2_ENABLE); /* reset, clock enabled */ - au_sync(); - au_writel(1, GPIO2_ENABLE); /* clock enabled */ - au_sync(); + void __iomem *base = (void __iomem *)KSEG1ADDR(AU1500_GPIO2_PHYS_ADDR); + __raw_writel(3, base + GPIO2_ENABLE); /* reset, clock enabled */ + wmb(); + __raw_writel(1, base + GPIO2_ENABLE); /* clock enabled */ + wmb(); } /** @@ -431,8 +458,9 @@ static inline void alchemy_gpio2_enable(void) */ static inline void alchemy_gpio2_disable(void) { - au_writel(2, GPIO2_ENABLE); /* reset, clock disabled */ - au_sync(); + void __iomem *base = (void __iomem *)KSEG1ADDR(AU1500_GPIO2_PHYS_ADDR); + __raw_writel(2, base + GPIO2_ENABLE); /* reset, clock disabled */ + wmb(); } /**********************************************************************/ @@ -556,6 +584,16 @@ static inline void gpio_set_value(int gpio, int v) alchemy_gpio_set_value(gpio, v); } +static inline int gpio_get_value_cansleep(unsigned gpio) +{ + return gpio_get_value(gpio); +} + +static inline void gpio_set_value_cansleep(unsigned gpio, int value) +{ + gpio_set_value(gpio, value); +} + static inline int gpio_is_valid(int gpio) { return alchemy_gpio_is_valid(gpio); @@ -581,10 +619,50 @@ static inline int gpio_request(unsigned gpio, const char *label) return 0; } +static inline int gpio_request_one(unsigned gpio, + unsigned long flags, const char *label) +{ + return 0; +} + +static inline int gpio_request_array(struct gpio *array, size_t num) +{ + return 0; +} + static inline void gpio_free(unsigned gpio) { } +static inline void gpio_free_array(struct gpio *array, size_t num) +{ +} + +static inline int gpio_set_debounce(unsigned gpio, unsigned debounce) +{ + return -ENOSYS; +} + +static inline int gpio_export(unsigned gpio, bool direction_may_change) +{ + return -ENOSYS; +} + +static inline int gpio_export_link(struct device *dev, const char *name, + unsigned gpio) +{ + return -ENOSYS; +} + +static inline int gpio_sysfs_set_active_low(unsigned gpio, int value) +{ + return -ENOSYS; +} + +static inline void gpio_unexport(unsigned gpio) +{ +} + #endif /* !CONFIG_ALCHEMY_GPIO_INDIRECT */ diff --git a/arch/mips/include/asm/mach-bcm47xx/nvram.h b/arch/mips/include/asm/mach-bcm47xx/nvram.h index 9759588ba3c..184d5ecb5f5 100644 --- a/arch/mips/include/asm/mach-bcm47xx/nvram.h +++ b/arch/mips/include/asm/mach-bcm47xx/nvram.h @@ -39,8 +39,16 @@ extern int nvram_getenv(char *name, char *val, size_t val_len); static inline void nvram_parse_macaddr(char *buf, u8 *macaddr) { - sscanf(buf, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx", &macaddr[0], &macaddr[1], - &macaddr[2], &macaddr[3], &macaddr[4], &macaddr[5]); + if (strchr(buf, ':')) + sscanf(buf, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx", &macaddr[0], + &macaddr[1], &macaddr[2], &macaddr[3], &macaddr[4], + &macaddr[5]); + else if (strchr(buf, '-')) + sscanf(buf, "%hhx-%hhx-%hhx-%hhx-%hhx-%hhx", &macaddr[0], + &macaddr[1], &macaddr[2], &macaddr[3], &macaddr[4], + &macaddr[5]); + else + printk(KERN_WARNING "Can not parse mac address: %s\n", buf); } #endif diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm963xx_tag.h b/arch/mips/include/asm/mach-bcm63xx/bcm963xx_tag.h index 32978d32561..ed72e6a26b7 100644 --- a/arch/mips/include/asm/mach-bcm63xx/bcm963xx_tag.h +++ b/arch/mips/include/asm/mach-bcm63xx/bcm963xx_tag.h @@ -88,7 +88,7 @@ struct bcm_tag { char kernel_crc[CRC_LEN]; /* 228-235: Unused at present */ char reserved1[8]; - /* 236-239: CRC32 of header excluding tagVersion */ + /* 236-239: CRC32 of header excluding last 20 bytes */ char header_crc[CRC_LEN]; /* 240-255: Unused at present */ char reserved2[16]; diff --git a/arch/mips/include/asm/mach-cavium-octeon/kernel-entry-init.h b/arch/mips/include/asm/mach-cavium-octeon/kernel-entry-init.h index 0b2b5eb22e9..dedef7d2b01 100644 --- a/arch/mips/include/asm/mach-cavium-octeon/kernel-entry-init.h +++ b/arch/mips/include/asm/mach-cavium-octeon/kernel-entry-init.h @@ -63,6 +63,11 @@ # CN30XX Disable instruction prefetching or v0, v0, 0x2000 skip: + # First clear off CvmCtl[IPPCI] bit and move the performance + # counters interrupt to IRQ 6 + li v1, ~(7 << 7) + and v0, v0, v1 + ori v0, v0, (6 << 7) # Write the cavium control register dmtc0 v0, CP0_CVMCTL_REG sync diff --git a/arch/mips/include/asm/mach-lantiq/lantiq.h b/arch/mips/include/asm/mach-lantiq/lantiq.h new file mode 100644 index 00000000000..ce2f02929d2 --- /dev/null +++ b/arch/mips/include/asm/mach-lantiq/lantiq.h @@ -0,0 +1,63 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2010 John Crispin <blogic@openwrt.org> + */ +#ifndef _LANTIQ_H__ +#define _LANTIQ_H__ + +#include <linux/irq.h> + +/* generic reg access functions */ +#define ltq_r32(reg) __raw_readl(reg) +#define ltq_w32(val, reg) __raw_writel(val, reg) +#define ltq_w32_mask(clear, set, reg) \ + ltq_w32((ltq_r32(reg) & ~(clear)) | (set), reg) +#define ltq_r8(reg) __raw_readb(reg) +#define ltq_w8(val, reg) __raw_writeb(val, reg) + +/* register access macros for EBU and CGU */ +#define ltq_ebu_w32(x, y) ltq_w32((x), ltq_ebu_membase + (y)) +#define ltq_ebu_r32(x) ltq_r32(ltq_ebu_membase + (x)) +#define ltq_cgu_w32(x, y) ltq_w32((x), ltq_cgu_membase + (y)) +#define ltq_cgu_r32(x) ltq_r32(ltq_cgu_membase + (x)) + +extern __iomem void *ltq_ebu_membase; +extern __iomem void *ltq_cgu_membase; + +extern unsigned int ltq_get_cpu_ver(void); +extern unsigned int ltq_get_soc_type(void); + +/* clock speeds */ +#define CLOCK_60M 60000000 +#define CLOCK_83M 83333333 +#define CLOCK_111M 111111111 +#define CLOCK_133M 133333333 +#define CLOCK_167M 166666667 +#define CLOCK_200M 200000000 +#define CLOCK_266M 266666666 +#define CLOCK_333M 333333333 +#define CLOCK_400M 400000000 + +/* spinlock all ebu i/o */ +extern spinlock_t ebu_lock; + +/* some irq helpers */ +extern void ltq_disable_irq(struct irq_data *data); +extern void ltq_mask_and_ack_irq(struct irq_data *data); +extern void ltq_enable_irq(struct irq_data *data); + +/* find out what caused the last cpu reset */ +extern int ltq_reset_cause(void); +#define LTQ_RST_CAUSE_WDTRST 0x20 + +#define IOPORT_RESOURCE_START 0x10000000 +#define IOPORT_RESOURCE_END 0xffffffff +#define IOMEM_RESOURCE_START 0x10000000 +#define IOMEM_RESOURCE_END 0xffffffff +#define LTQ_FLASH_START 0x10000000 +#define LTQ_FLASH_MAX 0x04000000 + +#endif diff --git a/arch/mips/include/asm/mach-lantiq/lantiq_platform.h b/arch/mips/include/asm/mach-lantiq/lantiq_platform.h new file mode 100644 index 00000000000..a305f1d0259 --- /dev/null +++ b/arch/mips/include/asm/mach-lantiq/lantiq_platform.h @@ -0,0 +1,53 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2010 John Crispin <blogic@openwrt.org> + */ + +#ifndef _LANTIQ_PLATFORM_H__ +#define _LANTIQ_PLATFORM_H__ + +#include <linux/mtd/partitions.h> +#include <linux/socket.h> + +/* struct used to pass info to the pci core */ +enum { + PCI_CLOCK_INT = 0, + PCI_CLOCK_EXT +}; + +#define PCI_EXIN0 0x0001 +#define PCI_EXIN1 0x0002 +#define PCI_EXIN2 0x0004 +#define PCI_EXIN3 0x0008 +#define PCI_EXIN4 0x0010 +#define PCI_EXIN5 0x0020 +#define PCI_EXIN_MAX 6 + +#define PCI_GNT1 0x0040 +#define PCI_GNT2 0x0080 +#define PCI_GNT3 0x0100 +#define PCI_GNT4 0x0200 + +#define PCI_REQ1 0x0400 +#define PCI_REQ2 0x0800 +#define PCI_REQ3 0x1000 +#define PCI_REQ4 0x2000 +#define PCI_REQ_SHIFT 10 +#define PCI_REQ_MASK 0xf + +struct ltq_pci_data { + int clock; + int gpio; + int irq[16]; +}; + +/* struct used to pass info to network drivers */ +struct ltq_eth_data { + struct sockaddr mac; + int mii_mode; +}; + +#endif diff --git a/arch/mips/include/asm/mach-lantiq/war.h b/arch/mips/include/asm/mach-lantiq/war.h new file mode 100644 index 00000000000..01b08ef368d --- /dev/null +++ b/arch/mips/include/asm/mach-lantiq/war.h @@ -0,0 +1,24 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + */ +#ifndef __ASM_MIPS_MACH_LANTIQ_WAR_H +#define __ASM_MIPS_MACH_LANTIQ_WAR_H + +#define R4600_V1_INDEX_ICACHEOP_WAR 0 +#define R4600_V1_HIT_CACHEOP_WAR 0 +#define R4600_V2_HIT_CACHEOP_WAR 0 +#define R5432_CP0_INTERRUPT_WAR 0 +#define BCM1250_M3_WAR 0 +#define SIBYTE_1956_WAR 0 +#define MIPS4K_ICACHE_REFILL_WAR 0 +#define MIPS_CACHE_SYNC_WAR 0 +#define TX49XX_ICACHE_INDEX_INV_WAR 0 +#define RM9000_CDEX_SMP_WAR 0 +#define ICACHE_REFILLS_WORKAROUND_WAR 0 +#define R10000_LLSC_WAR 0 +#define MIPS34K_MISSED_ITLB_WAR 0 + +#endif diff --git a/arch/mips/include/asm/mach-lantiq/xway/irq.h b/arch/mips/include/asm/mach-lantiq/xway/irq.h new file mode 100644 index 00000000000..a1471d2dd0d --- /dev/null +++ b/arch/mips/include/asm/mach-lantiq/xway/irq.h @@ -0,0 +1,18 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2010 John Crispin <blogic@openwrt.org> + */ + +#ifndef __LANTIQ_IRQ_H +#define __LANTIQ_IRQ_H + +#include <lantiq_irq.h> + +#define NR_IRQS 256 + +#include_next <irq.h> + +#endif diff --git a/arch/mips/include/asm/mach-lantiq/xway/lantiq_irq.h b/arch/mips/include/asm/mach-lantiq/xway/lantiq_irq.h new file mode 100644 index 00000000000..b4465a888e2 --- /dev/null +++ b/arch/mips/include/asm/mach-lantiq/xway/lantiq_irq.h @@ -0,0 +1,66 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2010 John Crispin <blogic@openwrt.org> + */ + +#ifndef _LANTIQ_XWAY_IRQ_H__ +#define _LANTIQ_XWAY_IRQ_H__ + +#define INT_NUM_IRQ0 8 +#define INT_NUM_IM0_IRL0 (INT_NUM_IRQ0 + 0) +#define INT_NUM_IM1_IRL0 (INT_NUM_IRQ0 + 32) +#define INT_NUM_IM2_IRL0 (INT_NUM_IRQ0 + 64) +#define INT_NUM_IM3_IRL0 (INT_NUM_IRQ0 + 96) +#define INT_NUM_IM4_IRL0 (INT_NUM_IRQ0 + 128) +#define INT_NUM_IM_OFFSET (INT_NUM_IM1_IRL0 - INT_NUM_IM0_IRL0) + +#define LTQ_ASC_TIR(x) (INT_NUM_IM3_IRL0 + (x * 8)) +#define LTQ_ASC_RIR(x) (INT_NUM_IM3_IRL0 + (x * 8) + 1) +#define LTQ_ASC_EIR(x) (INT_NUM_IM3_IRL0 + (x * 8) + 2) + +#define LTQ_ASC_ASE_TIR INT_NUM_IM2_IRL0 +#define LTQ_ASC_ASE_RIR (INT_NUM_IM2_IRL0 + 2) +#define LTQ_ASC_ASE_EIR (INT_NUM_IM2_IRL0 + 3) + +#define LTQ_SSC_TIR (INT_NUM_IM0_IRL0 + 15) +#define LTQ_SSC_RIR (INT_NUM_IM0_IRL0 + 14) +#define LTQ_SSC_EIR (INT_NUM_IM0_IRL0 + 16) + +#define LTQ_MEI_DYING_GASP_INT (INT_NUM_IM1_IRL0 + 21) +#define LTQ_MEI_INT (INT_NUM_IM1_IRL0 + 23) + +#define LTQ_TIMER6_INT (INT_NUM_IM1_IRL0 + 23) +#define LTQ_USB_INT (INT_NUM_IM1_IRL0 + 22) +#define LTQ_USB_OC_INT (INT_NUM_IM4_IRL0 + 23) + +#define MIPS_CPU_TIMER_IRQ 7 + +#define LTQ_DMA_CH0_INT (INT_NUM_IM2_IRL0) +#define LTQ_DMA_CH1_INT (INT_NUM_IM2_IRL0 + 1) +#define LTQ_DMA_CH2_INT (INT_NUM_IM2_IRL0 + 2) +#define LTQ_DMA_CH3_INT (INT_NUM_IM2_IRL0 + 3) +#define LTQ_DMA_CH4_INT (INT_NUM_IM2_IRL0 + 4) +#define LTQ_DMA_CH5_INT (INT_NUM_IM2_IRL0 + 5) +#define LTQ_DMA_CH6_INT (INT_NUM_IM2_IRL0 + 6) +#define LTQ_DMA_CH7_INT (INT_NUM_IM2_IRL0 + 7) +#define LTQ_DMA_CH8_INT (INT_NUM_IM2_IRL0 + 8) +#define LTQ_DMA_CH9_INT (INT_NUM_IM2_IRL0 + 9) +#define LTQ_DMA_CH10_INT (INT_NUM_IM2_IRL0 + 10) +#define LTQ_DMA_CH11_INT (INT_NUM_IM2_IRL0 + 11) +#define LTQ_DMA_CH12_INT (INT_NUM_IM2_IRL0 + 25) +#define LTQ_DMA_CH13_INT (INT_NUM_IM2_IRL0 + 26) +#define LTQ_DMA_CH14_INT (INT_NUM_IM2_IRL0 + 27) +#define LTQ_DMA_CH15_INT (INT_NUM_IM2_IRL0 + 28) +#define LTQ_DMA_CH16_INT (INT_NUM_IM2_IRL0 + 29) +#define LTQ_DMA_CH17_INT (INT_NUM_IM2_IRL0 + 30) +#define LTQ_DMA_CH18_INT (INT_NUM_IM2_IRL0 + 16) +#define LTQ_DMA_CH19_INT (INT_NUM_IM2_IRL0 + 21) + +#define LTQ_PPE_MBOX_INT (INT_NUM_IM2_IRL0 + 24) + +#define INT_NUM_IM4_IRL14 (INT_NUM_IM4_IRL0 + 14) + +#endif diff --git a/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h b/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h new file mode 100644 index 00000000000..8a3c6be669d --- /dev/null +++ b/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h @@ -0,0 +1,141 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2010 John Crispin <blogic@openwrt.org> + */ + +#ifndef _LTQ_XWAY_H__ +#define _LTQ_XWAY_H__ + +#ifdef CONFIG_SOC_TYPE_XWAY + +#include <lantiq.h> + +/* Chip IDs */ +#define SOC_ID_DANUBE1 0x129 +#define SOC_ID_DANUBE2 0x12B +#define SOC_ID_TWINPASS 0x12D +#define SOC_ID_AMAZON_SE 0x152 +#define SOC_ID_ARX188 0x16C +#define SOC_ID_ARX168 0x16D +#define SOC_ID_ARX182 0x16F + +/* SoC Types */ +#define SOC_TYPE_DANUBE 0x01 +#define SOC_TYPE_TWINPASS 0x02 +#define SOC_TYPE_AR9 0x03 +#define SOC_TYPE_VR9 0x04 +#define SOC_TYPE_AMAZON_SE 0x05 + +/* ASC0/1 - serial port */ +#define LTQ_ASC0_BASE_ADDR 0x1E100400 +#define LTQ_ASC1_BASE_ADDR 0x1E100C00 +#define LTQ_ASC_SIZE 0x400 + +/* RCU - reset control unit */ +#define LTQ_RCU_BASE_ADDR 0x1F203000 +#define LTQ_RCU_SIZE 0x1000 + +/* GPTU - general purpose timer unit */ +#define LTQ_GPTU_BASE_ADDR 0x18000300 +#define LTQ_GPTU_SIZE 0x100 + +/* EBU - external bus unit */ +#define LTQ_EBU_GPIO_START 0x14000000 +#define LTQ_EBU_GPIO_SIZE 0x1000 + +#define LTQ_EBU_BASE_ADDR 0x1E105300 +#define LTQ_EBU_SIZE 0x100 + +#define LTQ_EBU_BUSCON0 0x0060 +#define LTQ_EBU_PCC_CON 0x0090 +#define LTQ_EBU_PCC_IEN 0x00A4 +#define LTQ_EBU_PCC_ISTAT 0x00A0 +#define LTQ_EBU_BUSCON1 0x0064 +#define LTQ_EBU_ADDRSEL1 0x0024 +#define EBU_WRDIS 0x80000000 + +/* CGU - clock generation unit */ +#define LTQ_CGU_BASE_ADDR 0x1F103000 +#define LTQ_CGU_SIZE 0x1000 + +/* ICU - interrupt control unit */ +#define LTQ_ICU_BASE_ADDR 0x1F880200 +#define LTQ_ICU_SIZE 0x100 + +/* EIU - external interrupt unit */ +#define LTQ_EIU_BASE_ADDR 0x1F101000 +#define LTQ_EIU_SIZE 0x1000 + +/* PMU - power management unit */ +#define LTQ_PMU_BASE_ADDR 0x1F102000 +#define LTQ_PMU_SIZE 0x1000 + +#define PMU_DMA 0x0020 +#define PMU_USB 0x8041 +#define PMU_LED 0x0800 +#define PMU_GPT 0x1000 +#define PMU_PPE 0x2000 +#define PMU_FPI 0x4000 +#define PMU_SWITCH 0x10000000 + +/* ETOP - ethernet */ +#define LTQ_ETOP_BASE_ADDR 0x1E180000 +#define LTQ_ETOP_SIZE 0x40000 + +/* DMA */ +#define LTQ_DMA_BASE_ADDR 0x1E104100 +#define LTQ_DMA_SIZE 0x800 + +/* PCI */ +#define PCI_CR_BASE_ADDR 0x1E105400 +#define PCI_CR_SIZE 0x400 + +/* WDT */ +#define LTQ_WDT_BASE_ADDR 0x1F8803F0 +#define LTQ_WDT_SIZE 0x10 + +/* STP - serial to parallel conversion unit */ +#define LTQ_STP_BASE_ADDR 0x1E100BB0 +#define LTQ_STP_SIZE 0x40 + +/* GPIO */ +#define LTQ_GPIO0_BASE_ADDR 0x1E100B10 +#define LTQ_GPIO1_BASE_ADDR 0x1E100B40 +#define LTQ_GPIO2_BASE_ADDR 0x1E100B70 +#define LTQ_GPIO_SIZE 0x30 + +/* SSC */ +#define LTQ_SSC_BASE_ADDR 0x1e100800 +#define LTQ_SSC_SIZE 0x100 + +/* MEI - dsl core */ +#define LTQ_MEI_BASE_ADDR 0x1E116000 + +/* DEU - data encryption unit */ +#define LTQ_DEU_BASE_ADDR 0x1E103100 + +/* MPS - multi processor unit (voice) */ +#define LTQ_MPS_BASE_ADDR (KSEG1 + 0x1F107000) +#define LTQ_MPS_CHIPID ((u32 *)(LTQ_MPS_BASE_ADDR + 0x0344)) + +/* request a non-gpio and set the PIO config */ +extern int ltq_gpio_request(unsigned int pin, unsigned int alt0, + unsigned int alt1, unsigned int dir, const char *name); +extern void ltq_pmu_enable(unsigned int module); +extern void ltq_pmu_disable(unsigned int module); + +static inline int ltq_is_ar9(void) +{ + return (ltq_get_soc_type() == SOC_TYPE_AR9); +} + +static inline int ltq_is_vr9(void) +{ + return (ltq_get_soc_type() == SOC_TYPE_VR9); +} + +#endif /* CONFIG_SOC_TYPE_XWAY */ +#endif /* _LTQ_XWAY_H__ */ diff --git a/arch/mips/include/asm/mach-lantiq/xway/xway_dma.h b/arch/mips/include/asm/mach-lantiq/xway/xway_dma.h new file mode 100644 index 00000000000..872943a4b90 --- /dev/null +++ b/arch/mips/include/asm/mach-lantiq/xway/xway_dma.h @@ -0,0 +1,60 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. + * + * Copyright (C) 2011 John Crispin <blogic@openwrt.org> + */ + +#ifndef LTQ_DMA_H__ +#define LTQ_DMA_H__ + +#define LTQ_DESC_SIZE 0x08 /* each descriptor is 64bit */ +#define LTQ_DESC_NUM 0x40 /* 64 descriptors / channel */ + +#define LTQ_DMA_OWN BIT(31) /* owner bit */ +#define LTQ_DMA_C BIT(30) /* complete bit */ +#define LTQ_DMA_SOP BIT(29) /* start of packet */ +#define LTQ_DMA_EOP BIT(28) /* end of packet */ +#define LTQ_DMA_TX_OFFSET(x) ((x & 0x1f) << 23) /* data bytes offset */ +#define LTQ_DMA_RX_OFFSET(x) ((x & 0x7) << 23) /* data bytes offset */ +#define LTQ_DMA_SIZE_MASK (0xffff) /* the size field is 16 bit */ + +struct ltq_dma_desc { + u32 ctl; + u32 addr; +}; + +struct ltq_dma_channel { + int nr; /* the channel number */ + int irq; /* the mapped irq */ + int desc; /* the current descriptor */ + struct ltq_dma_desc *desc_base; /* the descriptor base */ + int phys; /* physical addr */ +}; + +enum { + DMA_PORT_ETOP = 0, + DMA_PORT_DEU, +}; + +extern void ltq_dma_enable_irq(struct ltq_dma_channel *ch); +extern void ltq_dma_disable_irq(struct ltq_dma_channel *ch); +extern void ltq_dma_ack_irq(struct ltq_dma_channel *ch); +extern void ltq_dma_open(struct ltq_dma_channel *ch); +extern void ltq_dma_close(struct ltq_dma_channel *ch); +extern void ltq_dma_alloc_tx(struct ltq_dma_channel *ch); +extern void ltq_dma_alloc_rx(struct ltq_dma_channel *ch); +extern void ltq_dma_free(struct ltq_dma_channel *ch); +extern void ltq_dma_init_port(int p); + +#endif diff --git a/arch/mips/include/asm/mach-netlogic/cpu-feature-overrides.h b/arch/mips/include/asm/mach-netlogic/cpu-feature-overrides.h new file mode 100644 index 00000000000..3b728275b9b --- /dev/null +++ b/arch/mips/include/asm/mach-netlogic/cpu-feature-overrides.h @@ -0,0 +1,47 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 2011 Netlogic Microsystems + * Copyright (C) 2003 Ralf Baechle + */ +#ifndef __ASM_MACH_NETLOGIC_CPU_FEATURE_OVERRIDES_H +#define __ASM_MACH_NETLOGIC_CPU_FEATURE_OVERRIDES_H + +#define cpu_has_4kex 1 +#define cpu_has_4k_cache 1 +#define cpu_has_watch 1 +#define cpu_has_mips16 0 +#define cpu_has_counter 1 +#define cpu_has_divec 1 +#define cpu_has_vce 0 +#define cpu_has_cache_cdex_p 0 +#define cpu_has_cache_cdex_s 0 +#define cpu_has_prefetch 1 +#define cpu_has_mcheck 1 +#define cpu_has_ejtag 1 + +#define cpu_has_llsc 1 +#define cpu_has_vtag_icache 0 +#define cpu_has_dc_aliases 0 +#define cpu_has_ic_fills_f_dc 0 +#define cpu_has_dsp 0 +#define cpu_has_mipsmt 0 +#define cpu_has_userlocal 0 +#define cpu_icache_snoops_remote_store 0 + +#define cpu_has_nofpuex 0 +#define cpu_has_64bits 1 + +#define cpu_has_mips32r1 1 +#define cpu_has_mips32r2 0 +#define cpu_has_mips64r1 1 +#define cpu_has_mips64r2 0 + +#define cpu_has_inclusive_pcaches 0 + +#define cpu_dcache_line_size() 32 +#define cpu_icache_line_size() 32 + +#endif /* __ASM_MACH_NETLOGIC_CPU_FEATURE_OVERRIDES_H */ diff --git a/arch/mips/include/asm/mach-netlogic/irq.h b/arch/mips/include/asm/mach-netlogic/irq.h new file mode 100644 index 00000000000..b5902458e7c --- /dev/null +++ b/arch/mips/include/asm/mach-netlogic/irq.h @@ -0,0 +1,14 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 2011 Netlogic Microsystems. + */ +#ifndef __ASM_NETLOGIC_IRQ_H +#define __ASM_NETLOGIC_IRQ_H + +#define NR_IRQS 64 +#define MIPS_CPU_IRQ_BASE 0 + +#endif /* __ASM_NETLOGIC_IRQ_H */ diff --git a/arch/mips/include/asm/mach-netlogic/war.h b/arch/mips/include/asm/mach-netlogic/war.h new file mode 100644 index 00000000000..22da8932735 --- /dev/null +++ b/arch/mips/include/asm/mach-netlogic/war.h @@ -0,0 +1,26 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 2011 Netlogic Microsystems. + * Copyright (C) 2002, 2004, 2007 by Ralf Baechle <ralf@linux-mips.org> + */ +#ifndef __ASM_MIPS_MACH_NLM_WAR_H +#define __ASM_MIPS_MACH_NLM_WAR_H + +#define R4600_V1_INDEX_ICACHEOP_WAR 0 +#define R4600_V1_HIT_CACHEOP_WAR 0 +#define R4600_V2_HIT_CACHEOP_WAR 0 +#define R5432_CP0_INTERRUPT_WAR 0 +#define BCM1250_M3_WAR 0 +#define SIBYTE_1956_WAR 0 +#define MIPS4K_ICACHE_REFILL_WAR 0 +#define MIPS_CACHE_SYNC_WAR 0 +#define TX49XX_ICACHE_INDEX_INV_WAR 0 +#define RM9000_CDEX_SMP_WAR 0 +#define ICACHE_REFILLS_WORKAROUND_WAR 0 +#define R10000_LLSC_WAR 0 +#define MIPS34K_MISSED_ITLB_WAR 0 + +#endif /* __ASM_MIPS_MACH_NLM_WAR_H */ diff --git a/arch/mips/include/asm/module.h b/arch/mips/include/asm/module.h index d94085a3eaf..bc01a02cacd 100644 --- a/arch/mips/include/asm/module.h +++ b/arch/mips/include/asm/module.h @@ -118,6 +118,8 @@ search_module_dbetables(unsigned long addr) #define MODULE_PROC_FAMILY "LOONGSON2 " #elif defined CONFIG_CPU_CAVIUM_OCTEON #define MODULE_PROC_FAMILY "OCTEON " +#elif defined CONFIG_CPU_XLR +#define MODULE_PROC_FAMILY "XLR " #else #error MODULE_PROC_FAMILY undefined for your processor configuration #endif diff --git a/arch/mips/include/asm/netlogic/interrupt.h b/arch/mips/include/asm/netlogic/interrupt.h new file mode 100644 index 00000000000..a85aadb6cfd --- /dev/null +++ b/arch/mips/include/asm/netlogic/interrupt.h @@ -0,0 +1,45 @@ +/* + * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights + * reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the NetLogic + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _ASM_NLM_INTERRUPT_H +#define _ASM_NLM_INTERRUPT_H + +/* Defines for the IRQ numbers */ + +#define IRQ_IPI_SMP_FUNCTION 3 +#define IRQ_IPI_SMP_RESCHEDULE 4 +#define IRQ_MSGRING 6 +#define IRQ_TIMER 7 + +#endif diff --git a/arch/mips/include/asm/netlogic/mips-extns.h b/arch/mips/include/asm/netlogic/mips-extns.h new file mode 100644 index 00000000000..8c53d0ba4bf --- /dev/null +++ b/arch/mips/include/asm/netlogic/mips-extns.h @@ -0,0 +1,76 @@ +/* + * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights + * reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the NetLogic + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _ASM_NLM_MIPS_EXTS_H +#define _ASM_NLM_MIPS_EXTS_H + +/* + * XLR and XLP interrupt request and interrupt mask registers + */ +#define read_c0_eirr() __read_64bit_c0_register($9, 6) +#define read_c0_eimr() __read_64bit_c0_register($9, 7) +#define write_c0_eirr(val) __write_64bit_c0_register($9, 6, val) + +/* + * Writing EIMR in 32 bit is a special case, the lower 8 bit of the + * EIMR is shadowed in the status register, so we cannot save and + * restore status register for split read. + */ +#define write_c0_eimr(val) \ +do { \ + if (sizeof(unsigned long) == 4) { \ + unsigned long __flags; \ + \ + local_irq_save(__flags); \ + __asm__ __volatile__( \ + ".set\tmips64\n\t" \ + "dsll\t%L0, %L0, 32\n\t" \ + "dsrl\t%L0, %L0, 32\n\t" \ + "dsll\t%M0, %M0, 32\n\t" \ + "or\t%L0, %L0, %M0\n\t" \ + "dmtc0\t%L0, $9, 7\n\t" \ + ".set\tmips0" \ + : : "r" (val)); \ + __flags = (__flags & 0xffff00ff) | (((val) & 0xff) << 8);\ + local_irq_restore(__flags); \ + } else \ + __write_64bit_c0_register($9, 7, (val)); \ +} while (0) + +static inline int hard_smp_processor_id(void) +{ + return __read_32bit_c0_register($15, 1) & 0x3ff; +} + +#endif /*_ASM_NLM_MIPS_EXTS_H */ diff --git a/arch/mips/include/asm/netlogic/psb-bootinfo.h b/arch/mips/include/asm/netlogic/psb-bootinfo.h new file mode 100644 index 00000000000..6878307f0ee --- /dev/null +++ b/arch/mips/include/asm/netlogic/psb-bootinfo.h @@ -0,0 +1,109 @@ +/* + * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights + * reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the NetLogic + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _ASM_NETLOGIC_BOOTINFO_H +#define _ASM_NETLOGIC_BOOTINFO_H + +struct psb_info { + uint64_t boot_level; + uint64_t io_base; + uint64_t output_device; + uint64_t uart_print; + uint64_t led_output; + uint64_t init; + uint64_t exit; + uint64_t warm_reset; + uint64_t wakeup; + uint64_t online_cpu_map; + uint64_t master_reentry_sp; + uint64_t master_reentry_gp; + uint64_t master_reentry_fn; + uint64_t slave_reentry_fn; + uint64_t magic_dword; + uint64_t uart_putchar; + uint64_t size; + uint64_t uart_getchar; + uint64_t nmi_handler; + uint64_t psb_version; + uint64_t mac_addr; + uint64_t cpu_frequency; + uint64_t board_version; + uint64_t malloc; + uint64_t free; + uint64_t global_shmem_addr; + uint64_t global_shmem_size; + uint64_t psb_os_cpu_map; + uint64_t userapp_cpu_map; + uint64_t wakeup_os; + uint64_t psb_mem_map; + uint64_t board_major_version; + uint64_t board_minor_version; + uint64_t board_manf_revision; + uint64_t board_serial_number; + uint64_t psb_physaddr_map; + uint64_t xlr_loaderip_config; + uint64_t bldr_envp; + uint64_t avail_mem_map; +}; + +enum { + NETLOGIC_IO_SPACE = 0x10, + PCIX_IO_SPACE, + PCIX_CFG_SPACE, + PCIX_MEMORY_SPACE, + HT_IO_SPACE, + HT_CFG_SPACE, + HT_MEMORY_SPACE, + SRAM_SPACE, + FLASH_CONTROLLER_SPACE +}; + +#define NLM_MAX_ARGS 64 +#define NLM_MAX_ENVS 32 + +/* This is what netlboot passes and linux boot_mem_map is subtly different */ +#define NLM_BOOT_MEM_MAP_MAX 32 +struct nlm_boot_mem_map { + int nr_map; + struct nlm_boot_mem_map_entry { + uint64_t addr; /* start of memory segment */ + uint64_t size; /* size of memory segment */ + uint32_t type; /* type of memory segment */ + } map[NLM_BOOT_MEM_MAP_MAX]; +}; + +/* Pointer to saved boot loader info */ +extern struct psb_info nlm_prom_info; + +#endif diff --git a/arch/mips/include/asm/netlogic/xlr/gpio.h b/arch/mips/include/asm/netlogic/xlr/gpio.h new file mode 100644 index 00000000000..51f6ad4aeb1 --- /dev/null +++ b/arch/mips/include/asm/netlogic/xlr/gpio.h @@ -0,0 +1,73 @@ +/* + * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights + * reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the NetLogic + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _ASM_NLM_GPIO_H +#define _ASM_NLM_GPIO_H + +#define NETLOGIC_GPIO_INT_EN_REG 0 +#define NETLOGIC_GPIO_INPUT_INVERSION_REG 1 +#define NETLOGIC_GPIO_IO_DIR_REG 2 +#define NETLOGIC_GPIO_IO_DATA_WR_REG 3 +#define NETLOGIC_GPIO_IO_DATA_RD_REG 4 + +#define NETLOGIC_GPIO_SWRESET_REG 8 +#define NETLOGIC_GPIO_DRAM1_CNTRL_REG 9 +#define NETLOGIC_GPIO_DRAM1_RATIO_REG 10 +#define NETLOGIC_GPIO_DRAM1_RESET_REG 11 +#define NETLOGIC_GPIO_DRAM1_STATUS_REG 12 +#define NETLOGIC_GPIO_DRAM2_CNTRL_REG 13 +#define NETLOGIC_GPIO_DRAM2_RATIO_REG 14 +#define NETLOGIC_GPIO_DRAM2_RESET_REG 15 +#define NETLOGIC_GPIO_DRAM2_STATUS_REG 16 + +#define NETLOGIC_GPIO_PWRON_RESET_CFG_REG 21 +#define NETLOGIC_GPIO_BIST_ALL_GO_STATUS_REG 24 +#define NETLOGIC_GPIO_BIST_CPU_GO_STATUS_REG 25 +#define NETLOGIC_GPIO_BIST_DEV_GO_STATUS_REG 26 + +#define NETLOGIC_GPIO_FUSE_BANK_REG 35 +#define NETLOGIC_GPIO_CPU_RESET_REG 40 +#define NETLOGIC_GPIO_RNG_REG 43 + +#define NETLOGIC_PWRON_RESET_PCMCIA_BOOT 17 +#define NETLOGIC_GPIO_LED_BITMAP 0x1700000 +#define NETLOGIC_GPIO_LED_0_SHIFT 20 +#define NETLOGIC_GPIO_LED_1_SHIFT 24 + +#define NETLOGIC_GPIO_LED_OUTPUT_CODE_RESET 0x01 +#define NETLOGIC_GPIO_LED_OUTPUT_CODE_HARD_RESET 0x02 +#define NETLOGIC_GPIO_LED_OUTPUT_CODE_SOFT_RESET 0x03 +#define NETLOGIC_GPIO_LED_OUTPUT_CODE_MAIN 0x04 + +#endif diff --git a/arch/mips/include/asm/netlogic/xlr/iomap.h b/arch/mips/include/asm/netlogic/xlr/iomap.h new file mode 100644 index 00000000000..2e3a4dd5304 --- /dev/null +++ b/arch/mips/include/asm/netlogic/xlr/iomap.h @@ -0,0 +1,131 @@ +/* + * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights + * reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the NetLogic + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _ASM_NLM_IOMAP_H +#define _ASM_NLM_IOMAP_H + +#define DEFAULT_NETLOGIC_IO_BASE CKSEG1ADDR(0x1ef00000) +#define NETLOGIC_IO_DDR2_CHN0_OFFSET 0x01000 +#define NETLOGIC_IO_DDR2_CHN1_OFFSET 0x02000 +#define NETLOGIC_IO_DDR2_CHN2_OFFSET 0x03000 +#define NETLOGIC_IO_DDR2_CHN3_OFFSET 0x04000 +#define NETLOGIC_IO_PIC_OFFSET 0x08000 +#define NETLOGIC_IO_UART_0_OFFSET 0x14000 +#define NETLOGIC_IO_UART_1_OFFSET 0x15100 + +#define NETLOGIC_IO_SIZE 0x1000 + +#define NETLOGIC_IO_BRIDGE_OFFSET 0x00000 + +#define NETLOGIC_IO_RLD2_CHN0_OFFSET 0x05000 +#define NETLOGIC_IO_RLD2_CHN1_OFFSET 0x06000 + +#define NETLOGIC_IO_SRAM_OFFSET 0x07000 + +#define NETLOGIC_IO_PCIX_OFFSET 0x09000 +#define NETLOGIC_IO_HT_OFFSET 0x0A000 + +#define NETLOGIC_IO_SECURITY_OFFSET 0x0B000 + +#define NETLOGIC_IO_GMAC_0_OFFSET 0x0C000 +#define NETLOGIC_IO_GMAC_1_OFFSET 0x0D000 +#define NETLOGIC_IO_GMAC_2_OFFSET 0x0E000 +#define NETLOGIC_IO_GMAC_3_OFFSET 0x0F000 + +/* XLS devices */ +#define NETLOGIC_IO_GMAC_4_OFFSET 0x20000 +#define NETLOGIC_IO_GMAC_5_OFFSET 0x21000 +#define NETLOGIC_IO_GMAC_6_OFFSET 0x22000 +#define NETLOGIC_IO_GMAC_7_OFFSET 0x23000 + +#define NETLOGIC_IO_PCIE_0_OFFSET 0x1E000 +#define NETLOGIC_IO_PCIE_1_OFFSET 0x1F000 +#define NETLOGIC_IO_SRIO_0_OFFSET 0x1E000 +#define NETLOGIC_IO_SRIO_1_OFFSET 0x1F000 + +#define NETLOGIC_IO_USB_0_OFFSET 0x24000 +#define NETLOGIC_IO_USB_1_OFFSET 0x25000 + +#define NETLOGIC_IO_COMP_OFFSET 0x1D000 +/* end XLS devices */ + +/* XLR devices */ +#define NETLOGIC_IO_SPI4_0_OFFSET 0x10000 +#define NETLOGIC_IO_XGMAC_0_OFFSET 0x11000 +#define NETLOGIC_IO_SPI4_1_OFFSET 0x12000 +#define NETLOGIC_IO_XGMAC_1_OFFSET 0x13000 +/* end XLR devices */ + +#define NETLOGIC_IO_I2C_0_OFFSET 0x16000 +#define NETLOGIC_IO_I2C_1_OFFSET 0x17000 + +#define NETLOGIC_IO_GPIO_OFFSET 0x18000 +#define NETLOGIC_IO_FLASH_OFFSET 0x19000 +#define NETLOGIC_IO_TB_OFFSET 0x1C000 + +#define NETLOGIC_CPLD_OFFSET KSEG1ADDR(0x1d840000) + +/* + * Base Address (Virtual) of the PCI Config address space + * For now, choose 256M phys in kseg1 = 0xA0000000 + (1<<28) + * Config space spans 256 (num of buses) * 256 (num functions) * 256 bytes + * ie 1<<24 = 16M + */ +#define DEFAULT_PCI_CONFIG_BASE 0x18000000 +#define DEFAULT_HT_TYPE0_CFG_BASE 0x16000000 +#define DEFAULT_HT_TYPE1_CFG_BASE 0x17000000 + +#ifndef __ASSEMBLY__ +#include <linux/types.h> +#include <asm/byteorder.h> + +typedef volatile __u32 nlm_reg_t; +extern unsigned long netlogic_io_base; + +/* FIXME read once in write_reg */ +#ifdef CONFIG_CPU_LITTLE_ENDIAN +#define netlogic_read_reg(base, offset) ((base)[(offset)]) +#define netlogic_write_reg(base, offset, value) ((base)[(offset)] = (value)) +#else +#define netlogic_read_reg(base, offset) (be32_to_cpu((base)[(offset)])) +#define netlogic_write_reg(base, offset, value) \ + ((base)[(offset)] = cpu_to_be32((value))) +#endif + +#define netlogic_read_reg_le32(base, offset) (le32_to_cpu((base)[(offset)])) +#define netlogic_write_reg_le32(base, offset, value) \ + ((base)[(offset)] = cpu_to_le32((value))) +#define netlogic_io_mmio(offset) ((nlm_reg_t *)(netlogic_io_base+(offset))) +#endif /* __ASSEMBLY__ */ +#endif diff --git a/arch/mips/include/asm/netlogic/xlr/pic.h b/arch/mips/include/asm/netlogic/xlr/pic.h new file mode 100644 index 00000000000..5cceb746f08 --- /dev/null +++ b/arch/mips/include/asm/netlogic/xlr/pic.h @@ -0,0 +1,231 @@ +/* + * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights + * reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the NetLogic + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _ASM_NLM_XLR_PIC_H +#define _ASM_NLM_XLR_PIC_H + +#define PIC_CLKS_PER_SEC 66666666ULL +/* PIC hardware interrupt numbers */ +#define PIC_IRT_WD_INDEX 0 +#define PIC_IRT_TIMER_0_INDEX 1 +#define PIC_IRT_TIMER_1_INDEX 2 +#define PIC_IRT_TIMER_2_INDEX 3 +#define PIC_IRT_TIMER_3_INDEX 4 +#define PIC_IRT_TIMER_4_INDEX 5 +#define PIC_IRT_TIMER_5_INDEX 6 +#define PIC_IRT_TIMER_6_INDEX 7 +#define PIC_IRT_TIMER_7_INDEX 8 +#define PIC_IRT_CLOCK_INDEX PIC_IRT_TIMER_7_INDEX +#define PIC_IRT_UART_0_INDEX 9 +#define PIC_IRT_UART_1_INDEX 10 +#define PIC_IRT_I2C_0_INDEX 11 +#define PIC_IRT_I2C_1_INDEX 12 +#define PIC_IRT_PCMCIA_INDEX 13 +#define PIC_IRT_GPIO_INDEX 14 +#define PIC_IRT_HYPER_INDEX 15 +#define PIC_IRT_PCIX_INDEX 16 +/* XLS */ +#define PIC_IRT_CDE_INDEX 15 +#define PIC_IRT_BRIDGE_TB_XLS_INDEX 16 +/* XLS */ +#define PIC_IRT_GMAC0_INDEX 17 +#define PIC_IRT_GMAC1_INDEX 18 +#define PIC_IRT_GMAC2_INDEX 19 +#define PIC_IRT_GMAC3_INDEX 20 +#define PIC_IRT_XGS0_INDEX 21 +#define PIC_IRT_XGS1_INDEX 22 +#define PIC_IRT_HYPER_FATAL_INDEX 23 +#define PIC_IRT_PCIX_FATAL_INDEX 24 +#define PIC_IRT_BRIDGE_AERR_INDEX 25 +#define PIC_IRT_BRIDGE_BERR_INDEX 26 +#define PIC_IRT_BRIDGE_TB_XLR_INDEX 27 +#define PIC_IRT_BRIDGE_AERR_NMI_INDEX 28 +/* XLS */ +#define PIC_IRT_GMAC4_INDEX 21 +#define PIC_IRT_GMAC5_INDEX 22 +#define PIC_IRT_GMAC6_INDEX 23 +#define PIC_IRT_GMAC7_INDEX 24 +#define PIC_IRT_BRIDGE_ERR_INDEX 25 +#define PIC_IRT_PCIE_LINK0_INDEX 26 +#define PIC_IRT_PCIE_LINK1_INDEX 27 +#define PIC_IRT_PCIE_LINK2_INDEX 23 +#define PIC_IRT_PCIE_LINK3_INDEX 24 +#define PIC_IRT_PCIE_XLSB0_LINK2_INDEX 28 +#define PIC_IRT_PCIE_XLSB0_LINK3_INDEX 29 +#define PIC_IRT_SRIO_LINK0_INDEX 26 +#define PIC_IRT_SRIO_LINK1_INDEX 27 +#define PIC_IRT_SRIO_LINK2_INDEX 28 +#define PIC_IRT_SRIO_LINK3_INDEX 29 +#define PIC_IRT_PCIE_INT_INDEX 28 +#define PIC_IRT_PCIE_FATAL_INDEX 29 +#define PIC_IRT_GPIO_B_INDEX 30 +#define PIC_IRT_USB_INDEX 31 +/* XLS */ +#define PIC_NUM_IRTS 32 + + +#define PIC_CLOCK_TIMER 7 + +/* PIC Registers */ +#define PIC_CTRL 0x00 +#define PIC_IPI 0x04 +#define PIC_INT_ACK 0x06 + +#define WD_MAX_VAL_0 0x08 +#define WD_MAX_VAL_1 0x09 +#define WD_MASK_0 0x0a +#define WD_MASK_1 0x0b +#define WD_HEARBEAT_0 0x0c +#define WD_HEARBEAT_1 0x0d + +#define PIC_IRT_0_BASE 0x40 +#define PIC_IRT_1_BASE 0x80 +#define PIC_TIMER_MAXVAL_0_BASE 0x100 +#define PIC_TIMER_MAXVAL_1_BASE 0x110 +#define PIC_TIMER_COUNT_0_BASE 0x120 +#define PIC_TIMER_COUNT_1_BASE 0x130 + +#define PIC_IRT_0(picintr) (PIC_IRT_0_BASE + (picintr)) +#define PIC_IRT_1(picintr) (PIC_IRT_1_BASE + (picintr)) + +#define PIC_TIMER_MAXVAL_0(i) (PIC_TIMER_MAXVAL_0_BASE + (i)) +#define PIC_TIMER_MAXVAL_1(i) (PIC_TIMER_MAXVAL_1_BASE + (i)) +#define PIC_TIMER_COUNT_0(i) (PIC_TIMER_COUNT_0_BASE + (i)) +#define PIC_TIMER_COUNT_1(i) (PIC_TIMER_COUNT_0_BASE + (i)) + +/* + * Mapping between hardware interrupt numbers and IRQs on CPU + * we use a simple scheme to map PIC interrupts 0-31 to IRQs + * 8-39. This leaves the IRQ 0-7 for cpu interrupts like + * count/compare and FMN + */ +#define PIC_IRQ_BASE 8 +#define PIC_INTR_TO_IRQ(i) (PIC_IRQ_BASE + (i)) +#define PIC_IRQ_TO_INTR(i) ((i) - PIC_IRQ_BASE) + +#define PIC_IRT_FIRST_IRQ PIC_IRQ_BASE +#define PIC_WD_IRQ PIC_INTR_TO_IRQ(PIC_IRT_WD_INDEX) +#define PIC_TIMER_0_IRQ PIC_INTR_TO_IRQ(PIC_IRT_TIMER_0_INDEX) +#define PIC_TIMER_1_IRQ PIC_INTR_TO_IRQ(PIC_IRT_TIMER_1_INDEX) +#define PIC_TIMER_2_IRQ PIC_INTR_TO_IRQ(PIC_IRT_TIMER_2_INDEX) +#define PIC_TIMER_3_IRQ PIC_INTR_TO_IRQ(PIC_IRT_TIMER_3_INDEX) +#define PIC_TIMER_4_IRQ PIC_INTR_TO_IRQ(PIC_IRT_TIMER_4_INDEX) +#define PIC_TIMER_5_IRQ PIC_INTR_TO_IRQ(PIC_IRT_TIMER_5_INDEX) +#define PIC_TIMER_6_IRQ PIC_INTR_TO_IRQ(PIC_IRT_TIMER_6_INDEX) +#define PIC_TIMER_7_IRQ PIC_INTR_TO_IRQ(PIC_IRT_TIMER_7_INDEX) +#define PIC_CLOCK_IRQ (PIC_TIMER_7_IRQ) +#define PIC_UART_0_IRQ PIC_INTR_TO_IRQ(PIC_IRT_UART_0_INDEX) +#define PIC_UART_1_IRQ PIC_INTR_TO_IRQ(PIC_IRT_UART_1_INDEX) +#define PIC_I2C_0_IRQ PIC_INTR_TO_IRQ(PIC_IRT_I2C_0_INDEX) +#define PIC_I2C_1_IRQ PIC_INTR_TO_IRQ(PIC_IRT_I2C_1_INDEX) +#define PIC_PCMCIA_IRQ PIC_INTR_TO_IRQ(PIC_IRT_PCMCIA_INDEX) +#define PIC_GPIO_IRQ PIC_INTR_TO_IRQ(PIC_IRT_GPIO_INDEX) +#define PIC_HYPER_IRQ PIC_INTR_TO_IRQ(PIC_IRT_HYPER_INDEX) +#define PIC_PCIX_IRQ PIC_INTR_TO_IRQ(PIC_IRT_PCIX_INDEX) +/* XLS */ +#define PIC_CDE_IRQ PIC_INTR_TO_IRQ(PIC_IRT_CDE_INDEX) +#define PIC_BRIDGE_TB_XLS_IRQ PIC_INTR_TO_IRQ(PIC_IRT_BRIDGE_TB_XLS_INDEX) +/* end XLS */ +#define PIC_GMAC_0_IRQ PIC_INTR_TO_IRQ(PIC_IRT_GMAC0_INDEX) +#define PIC_GMAC_1_IRQ PIC_INTR_TO_IRQ(PIC_IRT_GMAC1_INDEX) +#define PIC_GMAC_2_IRQ PIC_INTR_TO_IRQ(PIC_IRT_GMAC2_INDEX) +#define PIC_GMAC_3_IRQ PIC_INTR_TO_IRQ(PIC_IRT_GMAC3_INDEX) +#define PIC_XGS_0_IRQ PIC_INTR_TO_IRQ(PIC_IRT_XGS0_INDEX) +#define PIC_XGS_1_IRQ PIC_INTR_TO_IRQ(PIC_IRT_XGS1_INDEX) +#define PIC_HYPER_FATAL_IRQ PIC_INTR_TO_IRQ(PIC_IRT_HYPER_FATAL_INDEX) +#define PIC_PCIX_FATAL_IRQ PIC_INTR_TO_IRQ(PIC_IRT_PCIX_FATAL_INDEX) +#define PIC_BRIDGE_AERR_IRQ PIC_INTR_TO_IRQ(PIC_IRT_BRIDGE_AERR_INDEX) +#define PIC_BRIDGE_BERR_IRQ PIC_INTR_TO_IRQ(PIC_IRT_BRIDGE_BERR_INDEX) +#define PIC_BRIDGE_TB_XLR_IRQ PIC_INTR_TO_IRQ(PIC_IRT_BRIDGE_TB_XLR_INDEX) +#define PIC_BRIDGE_AERR_NMI_IRQ PIC_INTR_TO_IRQ(PIC_IRT_BRIDGE_AERR_NMI_INDEX) +/* XLS defines */ +#define PIC_GMAC_4_IRQ PIC_INTR_TO_IRQ(PIC_IRT_GMAC4_INDEX) +#define PIC_GMAC_5_IRQ PIC_INTR_TO_IRQ(PIC_IRT_GMAC5_INDEX) +#define PIC_GMAC_6_IRQ PIC_INTR_TO_IRQ(PIC_IRT_GMAC6_INDEX) +#define PIC_GMAC_7_IRQ PIC_INTR_TO_IRQ(PIC_IRT_GMAC7_INDEX) +#define PIC_BRIDGE_ERR_IRQ PIC_INTR_TO_IRQ(PIC_IRT_BRIDGE_ERR_INDEX) +#define PIC_PCIE_LINK0_IRQ PIC_INTR_TO_IRQ(PIC_IRT_PCIE_LINK0_INDEX) +#define PIC_PCIE_LINK1_IRQ PIC_INTR_TO_IRQ(PIC_IRT_PCIE_LINK1_INDEX) +#define PIC_PCIE_LINK2_IRQ PIC_INTR_TO_IRQ(PIC_IRT_PCIE_LINK2_INDEX) +#define PIC_PCIE_LINK3_IRQ PIC_INTR_TO_IRQ(PIC_IRT_PCIE_LINK3_INDEX) +#define PIC_PCIE_XLSB0_LINK2_IRQ PIC_INTR_TO_IRQ(PIC_IRT_PCIE_XLSB0_LINK2_INDEX) +#define PIC_PCIE_XLSB0_LINK3_IRQ PIC_INTR_TO_IRQ(PIC_IRT_PCIE_XLSB0_LINK3_INDEX) +#define PIC_SRIO_LINK0_IRQ PIC_INTR_TO_IRQ(PIC_IRT_SRIO_LINK0_INDEX) +#define PIC_SRIO_LINK1_IRQ PIC_INTR_TO_IRQ(PIC_IRT_SRIO_LINK1_INDEX) +#define PIC_SRIO_LINK2_IRQ PIC_INTR_TO_IRQ(PIC_IRT_SRIO_LINK2_INDEX) +#define PIC_SRIO_LINK3_IRQ PIC_INTR_TO_IRQ(PIC_IRT_SRIO_LINK3_INDEX) +#define PIC_PCIE_INT_IRQ PIC_INTR_TO_IRQ(PIC_IRT_PCIE_INT__INDEX) +#define PIC_PCIE_FATAL_IRQ PIC_INTR_TO_IRQ(PIC_IRT_PCIE_FATAL_INDEX) +#define PIC_GPIO_B_IRQ PIC_INTR_TO_IRQ(PIC_IRT_GPIO_B_INDEX) +#define PIC_USB_IRQ PIC_INTR_TO_IRQ(PIC_IRT_USB_INDEX) +#define PIC_IRT_LAST_IRQ PIC_USB_IRQ +/* end XLS */ + +#ifndef __ASSEMBLY__ +static inline void pic_send_ipi(u32 ipi) +{ + nlm_reg_t *mmio = netlogic_io_mmio(NETLOGIC_IO_PIC_OFFSET); + + netlogic_write_reg(mmio, PIC_IPI, ipi); +} + +static inline u32 pic_read_control(void) +{ + nlm_reg_t *mmio = netlogic_io_mmio(NETLOGIC_IO_PIC_OFFSET); + + return netlogic_read_reg(mmio, PIC_CTRL); +} + +static inline void pic_write_control(u32 control) +{ + nlm_reg_t *mmio = netlogic_io_mmio(NETLOGIC_IO_PIC_OFFSET); + + netlogic_write_reg(mmio, PIC_CTRL, control); +} + +static inline void pic_update_control(u32 control) +{ + nlm_reg_t *mmio = netlogic_io_mmio(NETLOGIC_IO_PIC_OFFSET); + + netlogic_write_reg(mmio, PIC_CTRL, + (control | netlogic_read_reg(mmio, PIC_CTRL))); +} + +#define PIC_IRQ_IS_EDGE_TRIGGERED(irq) (((irq) >= PIC_TIMER_0_IRQ) && \ + ((irq) <= PIC_TIMER_7_IRQ)) +#define PIC_IRQ_IS_IRT(irq) (((irq) >= PIC_IRT_FIRST_IRQ) && \ + ((irq) <= PIC_IRT_LAST_IRQ)) +#endif + +#endif /* _ASM_NLM_XLR_PIC_H */ diff --git a/arch/mips/include/asm/netlogic/xlr/xlr.h b/arch/mips/include/asm/netlogic/xlr/xlr.h new file mode 100644 index 00000000000..3e6372692a0 --- /dev/null +++ b/arch/mips/include/asm/netlogic/xlr/xlr.h @@ -0,0 +1,75 @@ +/* + * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights + * reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the NetLogic + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _ASM_NLM_XLR_H +#define _ASM_NLM_XLR_H + +/* Platform UART functions */ +struct uart_port; +unsigned int nlm_xlr_uart_in(struct uart_port *, int); +void nlm_xlr_uart_out(struct uart_port *, int, int); + +/* SMP support functions */ +struct irq_desc; +void nlm_smp_function_ipi_handler(unsigned int irq, struct irq_desc *desc); +void nlm_smp_resched_ipi_handler(unsigned int irq, struct irq_desc *desc); +int nlm_wakeup_secondary_cpus(u32 wakeup_mask); +void nlm_smp_irq_init(void); +void nlm_boot_smp_nmi(void); +void prom_pre_boot_secondary_cpus(void); + +extern struct plat_smp_ops nlm_smp_ops; +extern unsigned long nlm_common_ebase; + +/* XLS B silicon "Rook" */ +static inline unsigned int nlm_chip_is_xls_b(void) +{ + uint32_t prid = read_c0_prid(); + + return ((prid & 0xf000) == 0x4000); +} + +/* + * XLR chip types + */ + /* The XLS product line has chip versions 0x[48c]? */ +static inline unsigned int nlm_chip_is_xls(void) +{ + uint32_t prid = read_c0_prid(); + + return ((prid & 0xf000) == 0x8000 || (prid & 0xf000) == 0x4000 || + (prid & 0xf000) == 0xc000); +} + +#endif /* _ASM_NLM_XLR_H */ diff --git a/arch/mips/include/asm/ptrace.h b/arch/mips/include/asm/ptrace.h index 9f1b8dba2c8..de39b1f343e 100644 --- a/arch/mips/include/asm/ptrace.h +++ b/arch/mips/include/asm/ptrace.h @@ -141,7 +141,8 @@ extern int ptrace_set_watch_regs(struct task_struct *child, #define instruction_pointer(regs) ((regs)->cp0_epc) #define profile_pc(regs) instruction_pointer(regs) -extern asmlinkage void do_syscall_trace(struct pt_regs *regs, int entryexit); +extern asmlinkage void syscall_trace_enter(struct pt_regs *regs); +extern asmlinkage void syscall_trace_leave(struct pt_regs *regs); extern NORET_TYPE void die(const char *, struct pt_regs *) ATTRIB_NORET; diff --git a/arch/mips/include/asm/thread_info.h b/arch/mips/include/asm/thread_info.h index d71160de4d1..97f8bf6639e 100644 --- a/arch/mips/include/asm/thread_info.h +++ b/arch/mips/include/asm/thread_info.h @@ -149,6 +149,9 @@ register struct thread_info *__current_thread_info __asm__("$28"); #define _TIF_FPUBOUND (1<<TIF_FPUBOUND) #define _TIF_LOAD_WATCH (1<<TIF_LOAD_WATCH) +/* work to do in syscall_trace_leave() */ +#define _TIF_WORK_SYSCALL_EXIT (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT) + /* work to do on interrupt/exception return */ #define _TIF_WORK_MASK (0x0000ffef & \ ~(_TIF_SECCOMP | _TIF_SYSCALL_AUDIT)) diff --git a/arch/mips/include/asm/time.h b/arch/mips/include/asm/time.h index c7f1bfef157..bc14447e69b 100644 --- a/arch/mips/include/asm/time.h +++ b/arch/mips/include/asm/time.h @@ -84,12 +84,6 @@ static inline int init_mips_clocksource(void) #endif } -static inline void clocksource_set_clock(struct clocksource *cs, - unsigned int clock) -{ - clocksource_calc_mult_shift(cs, clock, 4); -} - static inline void clockevent_set_clock(struct clock_event_device *cd, unsigned int clock) { diff --git a/arch/mips/jazz/jazzdma.c b/arch/mips/jazz/jazzdma.c index 9ce9f64cb76..2d8e447cb82 100644 --- a/arch/mips/jazz/jazzdma.c +++ b/arch/mips/jazz/jazzdma.c @@ -211,7 +211,7 @@ EXPORT_SYMBOL(vdma_free); */ int vdma_remap(unsigned long laddr, unsigned long paddr, unsigned long size) { - int first, pages, npages; + int first, pages; if (laddr > 0xffffff) { if (vdma_debug) @@ -228,8 +228,7 @@ int vdma_remap(unsigned long laddr, unsigned long paddr, unsigned long size) return -EINVAL; /* invalid physical address */ } - npages = pages = - (((paddr & (VDMA_PAGESIZE - 1)) + size) >> 12) + 1; + pages = (((paddr & (VDMA_PAGESIZE - 1)) + size) >> 12) + 1; first = laddr >> 12; if (vdma_debug) printk("vdma_remap: first=%x, pages=%x\n", first, pages); diff --git a/arch/mips/jz4740/dma.c b/arch/mips/jz4740/dma.c index 5ebe75a6835..d7feb898692 100644 --- a/arch/mips/jz4740/dma.c +++ b/arch/mips/jz4740/dma.c @@ -242,9 +242,7 @@ EXPORT_SYMBOL_GPL(jz4740_dma_get_residue); static void jz4740_dma_chan_irq(struct jz4740_dma_chan *dma) { - uint32_t status; - - status = jz4740_dma_read(JZ_REG_DMA_STATUS_CTRL(dma->id)); + (void) jz4740_dma_read(JZ_REG_DMA_STATUS_CTRL(dma->id)); jz4740_dma_write_mask(JZ_REG_DMA_STATUS_CTRL(dma->id), 0, JZ_DMA_STATUS_CTRL_ENABLE | JZ_DMA_STATUS_CTRL_TRANSFER_DONE); diff --git a/arch/mips/jz4740/setup.c b/arch/mips/jz4740/setup.c index 6a9e14dab91..d97cfbf882f 100644 --- a/arch/mips/jz4740/setup.c +++ b/arch/mips/jz4740/setup.c @@ -1,5 +1,6 @@ /* * Copyright (C) 2009-2010, Lars-Peter Clausen <lars@metafoo.de> + * Copyright (C) 2011, Maarten ter Huurne <maarten@treewalker.org> * JZ4740 setup code * * This program is free software; you can redistribute it and/or modify it @@ -14,13 +15,44 @@ */ #include <linux/init.h> +#include <linux/io.h> #include <linux/kernel.h> +#include <asm/bootinfo.h> + +#include <asm/mach-jz4740/base.h> + #include "reset.h" + +#define JZ4740_EMC_SDRAM_CTRL 0x80 + + +static void __init jz4740_detect_mem(void) +{ + void __iomem *jz_emc_base; + u32 ctrl, bus, bank, rows, cols; + phys_t size; + + jz_emc_base = ioremap(JZ4740_EMC_BASE_ADDR, 0x100); + ctrl = readl(jz_emc_base + JZ4740_EMC_SDRAM_CTRL); + bus = 2 - ((ctrl >> 31) & 1); + bank = 1 + ((ctrl >> 19) & 1); + cols = 8 + ((ctrl >> 26) & 7); + rows = 11 + ((ctrl >> 20) & 3); + printk(KERN_DEBUG + "SDRAM preconfigured: bus:%u bank:%u rows:%u cols:%u\n", + bus, bank, rows, cols); + iounmap(jz_emc_base); + + size = 1 << (bus + bank + cols + rows); + add_memory_region(0, size, BOOT_MEM_RAM); +} + void __init plat_mem_setup(void) { jz4740_reset_init(); + jz4740_detect_mem(); } const char *get_system_type(void) diff --git a/arch/mips/jz4740/time.c b/arch/mips/jz4740/time.c index fe01678d94f..f83c2dd07a2 100644 --- a/arch/mips/jz4740/time.c +++ b/arch/mips/jz4740/time.c @@ -89,7 +89,7 @@ static int jz4740_clockevent_set_next(unsigned long evt, static struct clock_event_device jz4740_clockevent = { .name = "jz4740-timer", - .features = CLOCK_EVT_FEAT_PERIODIC, + .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT, .set_next_event = jz4740_clockevent_set_next, .set_mode = jz4740_clockevent_set_mode, .rating = 200, @@ -121,8 +121,7 @@ void __init plat_time_init(void) clockevents_register_device(&jz4740_clockevent); - clocksource_set_clock(&jz4740_clocksource, clk_rate); - ret = clocksource_register(&jz4740_clocksource); + ret = clocksource_register_hz(&jz4740_clocksource, clk_rate); if (ret) printk(KERN_ERR "Failed to register clocksource: %d\n", ret); diff --git a/arch/mips/jz4740/timer.c b/arch/mips/jz4740/timer.c index b2c01512905..654d5c3900b 100644 --- a/arch/mips/jz4740/timer.c +++ b/arch/mips/jz4740/timer.c @@ -27,11 +27,13 @@ void jz4740_timer_enable_watchdog(void) { writel(BIT(16), jz4740_timer_base + JZ_REG_TIMER_STOP_CLEAR); } +EXPORT_SYMBOL_GPL(jz4740_timer_enable_watchdog); void jz4740_timer_disable_watchdog(void) { writel(BIT(16), jz4740_timer_base + JZ_REG_TIMER_STOP_SET); } +EXPORT_SYMBOL_GPL(jz4740_timer_disable_watchdog); void __init jz4740_timer_init(void) { diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile index cedee2bcbd1..83bba332bbf 100644 --- a/arch/mips/kernel/Makefile +++ b/arch/mips/kernel/Makefile @@ -52,6 +52,7 @@ obj-$(CONFIG_CPU_TX39XX) += r2300_fpu.o r2300_switch.o obj-$(CONFIG_CPU_TX49XX) += r4k_fpu.o r4k_switch.o obj-$(CONFIG_CPU_VR41XX) += r4k_fpu.o r4k_switch.o obj-$(CONFIG_CPU_CAVIUM_OCTEON) += octeon_switch.o +obj-$(CONFIG_CPU_XLR) += r4k_fpu.o r4k_switch.o obj-$(CONFIG_SMP) += smp.o obj-$(CONFIG_SMP_UP) += smp-up.o diff --git a/arch/mips/kernel/cevt-txx9.c b/arch/mips/kernel/cevt-txx9.c index 0b7377361e2..f0ab92a1b05 100644 --- a/arch/mips/kernel/cevt-txx9.c +++ b/arch/mips/kernel/cevt-txx9.c @@ -51,8 +51,7 @@ void __init txx9_clocksource_init(unsigned long baseaddr, { struct txx9_tmr_reg __iomem *tmrptr; - clocksource_set_clock(&txx9_clocksource.cs, TIMER_CLK(imbusclk)); - clocksource_register(&txx9_clocksource.cs); + clocksource_register_hz(&txx9_clocksource.cs, TIMER_CLK(imbusclk)); tmrptr = ioremap(baseaddr, sizeof(struct txx9_tmr_reg)); __raw_writel(TCR_BASE, &tmrptr->tcr); diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index f65d4c8c65a..bb133d10b14 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -291,6 +291,12 @@ static inline int cpu_has_confreg(void) #endif } +static inline void set_elf_platform(int cpu, const char *plat) +{ + if (cpu == 0) + __elf_platform = plat; +} + /* * Get the FPU Implementation/Revision. */ @@ -614,6 +620,16 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c, unsigned int cpu) case PRID_IMP_LOONGSON2: c->cputype = CPU_LOONGSON2; __cpu_name[cpu] = "ICT Loongson-2"; + + switch (c->processor_id & PRID_REV_MASK) { + case PRID_REV_LOONGSON2E: + set_elf_platform(cpu, "loongson2e"); + break; + case PRID_REV_LOONGSON2F: + set_elf_platform(cpu, "loongson2f"); + break; + } + c->isa_level = MIPS_CPU_ISA_III; c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_LLSC | @@ -911,12 +927,14 @@ static inline void cpu_probe_broadcom(struct cpuinfo_mips *c, unsigned int cpu) case PRID_IMP_BMIPS32_REV8: c->cputype = CPU_BMIPS32; __cpu_name[cpu] = "Broadcom BMIPS32"; + set_elf_platform(cpu, "bmips32"); break; case PRID_IMP_BMIPS3300: case PRID_IMP_BMIPS3300_ALT: case PRID_IMP_BMIPS3300_BUG: c->cputype = CPU_BMIPS3300; __cpu_name[cpu] = "Broadcom BMIPS3300"; + set_elf_platform(cpu, "bmips3300"); break; case PRID_IMP_BMIPS43XX: { int rev = c->processor_id & 0xff; @@ -925,15 +943,18 @@ static inline void cpu_probe_broadcom(struct cpuinfo_mips *c, unsigned int cpu) rev <= PRID_REV_BMIPS4380_HI) { c->cputype = CPU_BMIPS4380; __cpu_name[cpu] = "Broadcom BMIPS4380"; + set_elf_platform(cpu, "bmips4380"); } else { c->cputype = CPU_BMIPS4350; __cpu_name[cpu] = "Broadcom BMIPS4350"; + set_elf_platform(cpu, "bmips4350"); } break; } case PRID_IMP_BMIPS5000: c->cputype = CPU_BMIPS5000; __cpu_name[cpu] = "Broadcom BMIPS5000"; + set_elf_platform(cpu, "bmips5000"); c->options |= MIPS_CPU_ULRI; break; } @@ -956,14 +977,12 @@ static inline void cpu_probe_cavium(struct cpuinfo_mips *c, unsigned int cpu) c->cputype = CPU_CAVIUM_OCTEON_PLUS; __cpu_name[cpu] = "Cavium Octeon+"; platform: - if (cpu == 0) - __elf_platform = "octeon"; + set_elf_platform(cpu, "octeon"); break; case PRID_IMP_CAVIUM_CN63XX: c->cputype = CPU_CAVIUM_OCTEON2; __cpu_name[cpu] = "Cavium Octeon II"; - if (cpu == 0) - __elf_platform = "octeon2"; + set_elf_platform(cpu, "octeon2"); break; default: printk(KERN_INFO "Unknown Octeon chip!\n"); @@ -988,6 +1007,59 @@ static inline void cpu_probe_ingenic(struct cpuinfo_mips *c, unsigned int cpu) } } +static inline void cpu_probe_netlogic(struct cpuinfo_mips *c, int cpu) +{ + decode_configs(c); + + c->options = (MIPS_CPU_TLB | + MIPS_CPU_4KEX | + MIPS_CPU_COUNTER | + MIPS_CPU_DIVEC | + MIPS_CPU_WATCH | + MIPS_CPU_EJTAG | + MIPS_CPU_LLSC); + + switch (c->processor_id & 0xff00) { + case PRID_IMP_NETLOGIC_XLR732: + case PRID_IMP_NETLOGIC_XLR716: + case PRID_IMP_NETLOGIC_XLR532: + case PRID_IMP_NETLOGIC_XLR308: + case PRID_IMP_NETLOGIC_XLR532C: + case PRID_IMP_NETLOGIC_XLR516C: + case PRID_IMP_NETLOGIC_XLR508C: + case PRID_IMP_NETLOGIC_XLR308C: + c->cputype = CPU_XLR; + __cpu_name[cpu] = "Netlogic XLR"; + break; + + case PRID_IMP_NETLOGIC_XLS608: + case PRID_IMP_NETLOGIC_XLS408: + case PRID_IMP_NETLOGIC_XLS404: + case PRID_IMP_NETLOGIC_XLS208: + case PRID_IMP_NETLOGIC_XLS204: + case PRID_IMP_NETLOGIC_XLS108: + case PRID_IMP_NETLOGIC_XLS104: + case PRID_IMP_NETLOGIC_XLS616B: + case PRID_IMP_NETLOGIC_XLS608B: + case PRID_IMP_NETLOGIC_XLS416B: + case PRID_IMP_NETLOGIC_XLS412B: + case PRID_IMP_NETLOGIC_XLS408B: + case PRID_IMP_NETLOGIC_XLS404B: + c->cputype = CPU_XLR; + __cpu_name[cpu] = "Netlogic XLS"; + break; + + default: + printk(KERN_INFO "Unknown Netlogic chip id [%02x]!\n", + c->processor_id); + c->cputype = CPU_XLR; + break; + } + + c->isa_level = MIPS_CPU_ISA_M64R1; + c->tlbsize = ((read_c0_config1() >> 25) & 0x3f) + 1; +} + #ifdef CONFIG_64BIT /* For use by uaccess.h */ u64 __ua_limit; @@ -1035,6 +1107,9 @@ __cpuinit void cpu_probe(void) case PRID_COMP_INGENIC: cpu_probe_ingenic(c, cpu); break; + case PRID_COMP_NETLOGIC: + cpu_probe_netlogic(c, cpu); + break; } BUG_ON(!__cpu_name[cpu]); diff --git a/arch/mips/kernel/csrc-bcm1480.c b/arch/mips/kernel/csrc-bcm1480.c index 51489f8a825..f96f99c794a 100644 --- a/arch/mips/kernel/csrc-bcm1480.c +++ b/arch/mips/kernel/csrc-bcm1480.c @@ -49,6 +49,5 @@ void __init sb1480_clocksource_init(void) plldiv = G_BCM1480_SYS_PLL_DIV(__raw_readq(IOADDR(A_SCD_SYSTEM_CFG))); zbbus = ((plldiv >> 1) * 50000000) + ((plldiv & 1) * 25000000); - clocksource_set_clock(cs, zbbus); - clocksource_register(cs); + clocksource_register_hz(cs, zbbus); } diff --git a/arch/mips/kernel/csrc-ioasic.c b/arch/mips/kernel/csrc-ioasic.c index 23da108506b..46bd7fa98d6 100644 --- a/arch/mips/kernel/csrc-ioasic.c +++ b/arch/mips/kernel/csrc-ioasic.c @@ -59,7 +59,5 @@ void __init dec_ioasic_clocksource_init(void) printk(KERN_INFO "I/O ASIC clock frequency %dHz\n", freq); clocksource_dec.rating = 200 + freq / 10000000; - clocksource_set_clock(&clocksource_dec, freq); - - clocksource_register(&clocksource_dec); + clocksource_register_hz(&clocksource_dec, freq); } diff --git a/arch/mips/kernel/csrc-powertv.c b/arch/mips/kernel/csrc-powertv.c index a27c16c8690..2e7c5232da8 100644 --- a/arch/mips/kernel/csrc-powertv.c +++ b/arch/mips/kernel/csrc-powertv.c @@ -78,9 +78,7 @@ static void __init powertv_c0_hpt_clocksource_init(void) clocksource_mips.rating = 200 + mips_hpt_frequency / 10000000; - clocksource_set_clock(&clocksource_mips, mips_hpt_frequency); - - clocksource_register(&clocksource_mips); + clocksource_register_hz(&clocksource_mips, mips_hpt_frequency); } /** @@ -130,43 +128,16 @@ static struct clocksource clocksource_tim_c = { /** * powertv_tim_c_clocksource_init - set up a clock source for the TIM_C clock * - * The hard part here is coming up with a constant k and shift s such that - * the 48-bit TIM_C value multiplied by k doesn't overflow and that value, - * when shifted right by s, yields the corresponding number of nanoseconds. * We know that TIM_C counts at 27 MHz/8, so each cycle corresponds to - * 1 / (27,000,000/8) seconds. Multiply that by a billion and you get the - * number of nanoseconds. Since the TIM_C value has 48 bits and the math is - * done in 64 bits, avoiding an overflow means that k must be less than - * 64 - 48 = 16 bits. + * 1 / (27,000,000/8) seconds. */ static void __init powertv_tim_c_clocksource_init(void) { - int prescale; - unsigned long dividend; - unsigned long k; - int s; - const int max_k_bits = (64 - 48) - 1; - const unsigned long billion = 1000000000; const unsigned long counts_per_second = 27000000 / 8; - prescale = BITS_PER_LONG - ilog2(billion) - 1; - dividend = billion << prescale; - k = dividend / counts_per_second; - s = ilog2(k) - max_k_bits; - - if (s < 0) - s = prescale; - - else { - k >>= s; - s += prescale; - } - - clocksource_tim_c.mult = k; - clocksource_tim_c.shift = s; clocksource_tim_c.rating = 200; - clocksource_register(&clocksource_tim_c); + clocksource_register_hz(&clocksource_tim_c, counts_per_second); tim_c = (struct tim_c *) asic_reg_addr(tim_ch); } diff --git a/arch/mips/kernel/csrc-r4k.c b/arch/mips/kernel/csrc-r4k.c index e95a3cd48ee..decd1fa38d5 100644 --- a/arch/mips/kernel/csrc-r4k.c +++ b/arch/mips/kernel/csrc-r4k.c @@ -30,9 +30,7 @@ int __init init_r4k_clocksource(void) /* Calculate a somewhat reasonable rating value */ clocksource_mips.rating = 200 + mips_hpt_frequency / 10000000; - clocksource_set_clock(&clocksource_mips, mips_hpt_frequency); - - clocksource_register(&clocksource_mips); + clocksource_register_hz(&clocksource_mips, mips_hpt_frequency); return 0; } diff --git a/arch/mips/kernel/csrc-sb1250.c b/arch/mips/kernel/csrc-sb1250.c index d14d3d1907f..e9606d90768 100644 --- a/arch/mips/kernel/csrc-sb1250.c +++ b/arch/mips/kernel/csrc-sb1250.c @@ -65,6 +65,5 @@ void __init sb1250_clocksource_init(void) IOADDR(A_SCD_TIMER_REGISTER(SB1250_HPT_NUM, R_SCD_TIMER_CFG))); - clocksource_set_clock(cs, V_SCD_TIMER_FREQ); - clocksource_register(cs); + clocksource_register_hz(cs, V_SCD_TIMER_FREQ); } diff --git a/arch/mips/kernel/entry.S b/arch/mips/kernel/entry.S index ffa331029e0..37acfa036d4 100644 --- a/arch/mips/kernel/entry.S +++ b/arch/mips/kernel/entry.S @@ -167,14 +167,13 @@ work_notifysig: # deal with pending signals and FEXPORT(syscall_exit_work_partial) SAVE_STATIC syscall_exit_work: - li t0, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT + li t0, _TIF_WORK_SYSCALL_EXIT and t0, a2 # a2 is preloaded with TI_FLAGS beqz t0, work_pending # trace bit set? - local_irq_enable # could let do_syscall_trace() + local_irq_enable # could let syscall_trace_leave() # call schedule() instead move a0, sp - li a1, 1 - jal do_syscall_trace + jal syscall_trace_leave b resume_userspace #if defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_MIPS_MT) diff --git a/arch/mips/kernel/ftrace.c b/arch/mips/kernel/ftrace.c index 94ca2b018af..feb8021a305 100644 --- a/arch/mips/kernel/ftrace.c +++ b/arch/mips/kernel/ftrace.c @@ -23,6 +23,7 @@ #define JAL 0x0c000000 /* jump & link: ip --> ra, jump to target */ #define ADDR_MASK 0x03ffffff /* op_code|addr : 31...26|25 ....0 */ +#define JUMP_RANGE_MASK ((1UL << 28) - 1) #define INSN_NOP 0x00000000 /* nop */ #define INSN_JAL(addr) \ @@ -44,12 +45,12 @@ static inline void ftrace_dyn_arch_init_insns(void) /* jal (ftrace_caller + 8), jump over the first two instruction */ buf = (u32 *)&insn_jal_ftrace_caller; - uasm_i_jal(&buf, (FTRACE_ADDR + 8)); + uasm_i_jal(&buf, (FTRACE_ADDR + 8) & JUMP_RANGE_MASK); #ifdef CONFIG_FUNCTION_GRAPH_TRACER /* j ftrace_graph_caller */ buf = (u32 *)&insn_j_ftrace_graph_caller; - uasm_i_j(&buf, (unsigned long)ftrace_graph_caller); + uasm_i_j(&buf, (unsigned long)ftrace_graph_caller & JUMP_RANGE_MASK); #endif } diff --git a/arch/mips/kernel/i8253.c b/arch/mips/kernel/i8253.c index 2392a7a296d..391221b6a6a 100644 --- a/arch/mips/kernel/i8253.c +++ b/arch/mips/kernel/i8253.c @@ -125,87 +125,11 @@ void __init setup_pit_timer(void) setup_irq(0, &irq0); } -/* - * Since the PIT overflows every tick, its not very useful - * to just read by itself. So use jiffies to emulate a free - * running counter: - */ -static cycle_t pit_read(struct clocksource *cs) -{ - unsigned long flags; - int count; - u32 jifs; - static int old_count; - static u32 old_jifs; - - raw_spin_lock_irqsave(&i8253_lock, flags); - /* - * Although our caller may have the read side of xtime_lock, - * this is now a seqlock, and we are cheating in this routine - * by having side effects on state that we cannot undo if - * there is a collision on the seqlock and our caller has to - * retry. (Namely, old_jifs and old_count.) So we must treat - * jiffies as volatile despite the lock. We read jiffies - * before latching the timer count to guarantee that although - * the jiffies value might be older than the count (that is, - * the counter may underflow between the last point where - * jiffies was incremented and the point where we latch the - * count), it cannot be newer. - */ - jifs = jiffies; - outb_p(0x00, PIT_MODE); /* latch the count ASAP */ - count = inb_p(PIT_CH0); /* read the latched count */ - count |= inb_p(PIT_CH0) << 8; - - /* VIA686a test code... reset the latch if count > max + 1 */ - if (count > LATCH) { - outb_p(0x34, PIT_MODE); - outb_p(LATCH & 0xff, PIT_CH0); - outb(LATCH >> 8, PIT_CH0); - count = LATCH - 1; - } - - /* - * It's possible for count to appear to go the wrong way for a - * couple of reasons: - * - * 1. The timer counter underflows, but we haven't handled the - * resulting interrupt and incremented jiffies yet. - * 2. Hardware problem with the timer, not giving us continuous time, - * the counter does small "jumps" upwards on some Pentium systems, - * (see c't 95/10 page 335 for Neptun bug.) - * - * Previous attempts to handle these cases intelligently were - * buggy, so we just do the simple thing now. - */ - if (count > old_count && jifs == old_jifs) { - count = old_count; - } - old_count = count; - old_jifs = jifs; - - raw_spin_unlock_irqrestore(&i8253_lock, flags); - - count = (LATCH - 1) - count; - - return (cycle_t)(jifs * LATCH) + count; -} - -static struct clocksource clocksource_pit = { - .name = "pit", - .rating = 110, - .read = pit_read, - .mask = CLOCKSOURCE_MASK(32), - .mult = 0, - .shift = 20, -}; - static int __init init_pit_clocksource(void) { if (num_possible_cpus() > 1) /* PIT does not scale! */ return 0; - clocksource_pit.mult = clocksource_hz2mult(CLOCK_TICK_RATE, 20); - return clocksource_register(&clocksource_pit); + return clocksource_i8253_init(); } arch_initcall(init_pit_clocksource); diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c index d21c388c011..4e6ea1ffad4 100644 --- a/arch/mips/kernel/ptrace.c +++ b/arch/mips/kernel/ptrace.c @@ -533,15 +533,10 @@ static inline int audit_arch(void) * Notification of system call entry/exit * - triggered by current->work.syscall_trace */ -asmlinkage void do_syscall_trace(struct pt_regs *regs, int entryexit) +asmlinkage void syscall_trace_enter(struct pt_regs *regs) { /* do the secure computing check first */ - if (!entryexit) - secure_computing(regs->regs[2]); - - if (unlikely(current->audit_context) && entryexit) - audit_syscall_exit(AUDITSC_RESULT(regs->regs[2]), - regs->regs[2]); + secure_computing(regs->regs[2]); if (!(current->ptrace & PT_PTRACED)) goto out; @@ -565,8 +560,40 @@ asmlinkage void do_syscall_trace(struct pt_regs *regs, int entryexit) } out: - if (unlikely(current->audit_context) && !entryexit) + if (unlikely(current->audit_context)) audit_syscall_entry(audit_arch(), regs->regs[2], regs->regs[4], regs->regs[5], regs->regs[6], regs->regs[7]); } + +/* + * Notification of system call entry/exit + * - triggered by current->work.syscall_trace + */ +asmlinkage void syscall_trace_leave(struct pt_regs *regs) +{ + if (unlikely(current->audit_context)) + audit_syscall_exit(AUDITSC_RESULT(regs->regs[7]), + -regs->regs[2]); + + if (!(current->ptrace & PT_PTRACED)) + return; + + if (!test_thread_flag(TIF_SYSCALL_TRACE)) + return; + + /* The 0x80 provides a way for the tracing parent to distinguish + between a syscall stop and SIGTRAP delivery */ + ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD) ? + 0x80 : 0)); + + /* + * this isn't the same as continuing with a signal, but it will do + * for normal use. strace only continues with a signal if the + * stopping signal is not SIGTRAP. -brl + */ + if (current->exit_code) { + send_sig(current->exit_code, current, 1); + current->exit_code = 0; + } +} diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S index 7f5468b38d4..7a8e1dd7f6f 100644 --- a/arch/mips/kernel/scall32-o32.S +++ b/arch/mips/kernel/scall32-o32.S @@ -88,8 +88,7 @@ syscall_trace_entry: SAVE_STATIC move s0, t2 move a0, sp - li a1, 0 - jal do_syscall_trace + jal syscall_trace_enter move t0, s0 RESTORE_STATIC @@ -565,7 +564,7 @@ einval: li v0, -ENOSYS sys sys_ioprio_get 2 /* 4315 */ sys sys_utimensat 4 sys sys_signalfd 3 - sys sys_ni_syscall 0 + sys sys_ni_syscall 0 /* was timerfd */ sys sys_eventfd 1 sys sys_fallocate 6 /* 4320 */ sys sys_timerfd_create 2 diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S index a2e1fcbc41d..2d31c83224f 100644 --- a/arch/mips/kernel/scall64-64.S +++ b/arch/mips/kernel/scall64-64.S @@ -91,8 +91,7 @@ syscall_trace_entry: SAVE_STATIC move s0, t2 move a0, sp - li a1, 0 - jal do_syscall_trace + jal syscall_trace_enter move t0, s0 RESTORE_STATIC @@ -404,7 +403,7 @@ sys_call_table: PTR sys_ioprio_get PTR sys_utimensat /* 5275 */ PTR sys_signalfd - PTR sys_ni_syscall + PTR sys_ni_syscall /* was timerfd */ PTR sys_eventfd PTR sys_fallocate PTR sys_timerfd_create /* 5280 */ diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S index b2c7624995b..38a0503b9a4 100644 --- a/arch/mips/kernel/scall64-n32.S +++ b/arch/mips/kernel/scall64-n32.S @@ -89,8 +89,7 @@ n32_syscall_trace_entry: SAVE_STATIC move s0, t2 move a0, sp - li a1, 0 - jal do_syscall_trace + jal syscall_trace_enter move t0, s0 RESTORE_STATIC @@ -403,7 +402,7 @@ EXPORT(sysn32_call_table) PTR sys_ioprio_get PTR compat_sys_utimensat PTR compat_sys_signalfd /* 6280 */ - PTR sys_ni_syscall + PTR sys_ni_syscall /* was timerfd */ PTR sys_eventfd PTR sys_fallocate PTR sys_timerfd_create diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S index 049a9c8c49a..91ea5e4041d 100644 --- a/arch/mips/kernel/scall64-o32.S +++ b/arch/mips/kernel/scall64-o32.S @@ -123,8 +123,7 @@ trace_a_syscall: move s0, t2 # Save syscall pointer move a0, sp - li a1, 0 - jal do_syscall_trace + jal syscall_trace_enter move t0, s0 RESTORE_STATIC @@ -522,7 +521,7 @@ sys_call_table: PTR sys_ioprio_get /* 4315 */ PTR compat_sys_utimensat PTR compat_sys_signalfd - PTR sys_ni_syscall + PTR sys_ni_syscall /* was timerfd */ PTR sys_eventfd PTR sys32_fallocate /* 4320 */ PTR sys_timerfd_create diff --git a/arch/mips/kernel/smtc.c b/arch/mips/kernel/smtc.c index 5a88cc4ccd5..cedac463374 100644 --- a/arch/mips/kernel/smtc.c +++ b/arch/mips/kernel/smtc.c @@ -929,7 +929,7 @@ static void post_direct_ipi(int cpu, struct smtc_ipi *pipi) static void ipi_resched_interrupt(void) { - /* Return from interrupt should be enough to cause scheduler check */ + scheduler_ipi(); } static void ipi_call_interrupt(void) diff --git a/arch/mips/kernel/syscall.c b/arch/mips/kernel/syscall.c index 58beabf50b3..d02765708dd 100644 --- a/arch/mips/kernel/syscall.c +++ b/arch/mips/kernel/syscall.c @@ -10,12 +10,9 @@ #include <linux/capability.h> #include <linux/errno.h> #include <linux/linkage.h> -#include <linux/mm.h> #include <linux/fs.h> #include <linux/smp.h> -#include <linux/mman.h> #include <linux/ptrace.h> -#include <linux/sched.h> #include <linux/string.h> #include <linux/syscalls.h> #include <linux/file.h> @@ -25,11 +22,9 @@ #include <linux/msg.h> #include <linux/shm.h> #include <linux/compiler.h> -#include <linux/module.h> #include <linux/ipc.h> #include <linux/uaccess.h> #include <linux/slab.h> -#include <linux/random.h> #include <linux/elf.h> #include <asm/asm.h> @@ -66,121 +61,6 @@ out: return res; } -unsigned long shm_align_mask = PAGE_SIZE - 1; /* Sane caches */ - -EXPORT_SYMBOL(shm_align_mask); - -#define COLOUR_ALIGN(addr,pgoff) \ - ((((addr) + shm_align_mask) & ~shm_align_mask) + \ - (((pgoff) << PAGE_SHIFT) & shm_align_mask)) - -unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, - unsigned long len, unsigned long pgoff, unsigned long flags) -{ - struct vm_area_struct * vmm; - int do_color_align; - unsigned long task_size; - -#ifdef CONFIG_32BIT - task_size = TASK_SIZE; -#else /* Must be CONFIG_64BIT*/ - task_size = test_thread_flag(TIF_32BIT_ADDR) ? TASK_SIZE32 : TASK_SIZE; -#endif - - if (len > task_size) - return -ENOMEM; - - if (flags & MAP_FIXED) { - /* Even MAP_FIXED mappings must reside within task_size. */ - if (task_size - len < addr) - return -EINVAL; - - /* - * We do not accept a shared mapping if it would violate - * cache aliasing constraints. - */ - if ((flags & MAP_SHARED) && - ((addr - (pgoff << PAGE_SHIFT)) & shm_align_mask)) - return -EINVAL; - return addr; - } - - do_color_align = 0; - if (filp || (flags & MAP_SHARED)) - do_color_align = 1; - if (addr) { - if (do_color_align) - addr = COLOUR_ALIGN(addr, pgoff); - else - addr = PAGE_ALIGN(addr); - vmm = find_vma(current->mm, addr); - if (task_size - len >= addr && - (!vmm || addr + len <= vmm->vm_start)) - return addr; - } - addr = current->mm->mmap_base; - if (do_color_align) - addr = COLOUR_ALIGN(addr, pgoff); - else - addr = PAGE_ALIGN(addr); - - for (vmm = find_vma(current->mm, addr); ; vmm = vmm->vm_next) { - /* At this point: (!vmm || addr < vmm->vm_end). */ - if (task_size - len < addr) - return -ENOMEM; - if (!vmm || addr + len <= vmm->vm_start) - return addr; - addr = vmm->vm_end; - if (do_color_align) - addr = COLOUR_ALIGN(addr, pgoff); - } -} - -void arch_pick_mmap_layout(struct mm_struct *mm) -{ - unsigned long random_factor = 0UL; - - if (current->flags & PF_RANDOMIZE) { - random_factor = get_random_int(); - random_factor = random_factor << PAGE_SHIFT; - if (TASK_IS_32BIT_ADDR) - random_factor &= 0xfffffful; - else - random_factor &= 0xffffffful; - } - - mm->mmap_base = TASK_UNMAPPED_BASE + random_factor; - mm->get_unmapped_area = arch_get_unmapped_area; - mm->unmap_area = arch_unmap_area; -} - -static inline unsigned long brk_rnd(void) -{ - unsigned long rnd = get_random_int(); - - rnd = rnd << PAGE_SHIFT; - /* 8MB for 32bit, 256MB for 64bit */ - if (TASK_IS_32BIT_ADDR) - rnd = rnd & 0x7ffffful; - else - rnd = rnd & 0xffffffful; - - return rnd; -} - -unsigned long arch_randomize_brk(struct mm_struct *mm) -{ - unsigned long base = mm->brk; - unsigned long ret; - - ret = PAGE_ALIGN(base + brk_rnd()); - - if (ret < mm->brk) - return mm->brk; - - return ret; -} - SYSCALL_DEFINE6(mips_mmap, unsigned long, addr, unsigned long, len, unsigned long, prot, unsigned long, flags, unsigned long, fd, off_t, offset) diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index 71350f7f2d8..e9b3af27d84 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -374,7 +374,8 @@ void __noreturn die(const char *str, struct pt_regs *regs) unsigned long dvpret = dvpe(); #endif /* CONFIG_MIPS_MT_SMTC */ - notify_die(DIE_OOPS, str, regs, 0, regs_to_trapnr(regs), SIGSEGV); + if (notify_die(DIE_OOPS, str, regs, 0, regs_to_trapnr(regs), SIGSEGV) == NOTIFY_STOP) + sig = 0; console_verbose(); spin_lock_irq(&die_lock); @@ -383,9 +384,6 @@ void __noreturn die(const char *str, struct pt_regs *regs) mips_mt_regdump(dvpret); #endif /* CONFIG_MIPS_MT_SMTC */ - if (notify_die(DIE_OOPS, str, regs, 0, regs_to_trapnr(regs), SIGSEGV) == NOTIFY_STOP) - sig = 0; - printk("%s[#%d]:\n", str, ++die_counter); show_registers(regs); add_taint(TAINT_DIE); diff --git a/arch/mips/kernel/vmlinux.lds.S b/arch/mips/kernel/vmlinux.lds.S index 832afbb8758..cd2ca544454 100644 --- a/arch/mips/kernel/vmlinux.lds.S +++ b/arch/mips/kernel/vmlinux.lds.S @@ -68,12 +68,14 @@ SECTIONS RODATA /* writeable */ + _sdata = .; /* Start of data section */ .data : { /* Data */ . = . + DATAOFFSET; /* for CONFIG_MAPPED_KERNEL */ INIT_TASK_DATA(PAGE_SIZE) NOSAVE_DATA CACHELINE_ALIGNED_DATA(1 << CONFIG_MIPS_L1_CACHE_SHIFT) + READ_MOSTLY_DATA(1 << CONFIG_MIPS_L1_CACHE_SHIFT) DATA_DATA CONSTRUCTORS } diff --git a/arch/mips/lantiq/Kconfig b/arch/mips/lantiq/Kconfig new file mode 100644 index 00000000000..3fccf210451 --- /dev/null +++ b/arch/mips/lantiq/Kconfig @@ -0,0 +1,23 @@ +if LANTIQ + +config SOC_TYPE_XWAY + bool + default n + +choice + prompt "SoC Type" + default SOC_XWAY + +config SOC_AMAZON_SE + bool "Amazon SE" + select SOC_TYPE_XWAY + +config SOC_XWAY + bool "XWAY" + select SOC_TYPE_XWAY + select HW_HAS_PCI +endchoice + +source "arch/mips/lantiq/xway/Kconfig" + +endif diff --git a/arch/mips/lantiq/Makefile b/arch/mips/lantiq/Makefile new file mode 100644 index 00000000000..e5dae0e24b0 --- /dev/null +++ b/arch/mips/lantiq/Makefile @@ -0,0 +1,11 @@ +# Copyright (C) 2010 John Crispin <blogic@openwrt.org> +# +# This program is free software; you can redistribute it and/or modify it +# under the terms of the GNU General Public License version 2 as published +# by the Free Software Foundation. + +obj-y := irq.o setup.o clk.o prom.o devices.o + +obj-$(CONFIG_EARLY_PRINTK) += early_printk.o + +obj-$(CONFIG_SOC_TYPE_XWAY) += xway/ diff --git a/arch/mips/lantiq/Platform b/arch/mips/lantiq/Platform new file mode 100644 index 00000000000..f3dff05722d --- /dev/null +++ b/arch/mips/lantiq/Platform @@ -0,0 +1,8 @@ +# +# Lantiq +# + +platform-$(CONFIG_LANTIQ) += lantiq/ +cflags-$(CONFIG_LANTIQ) += -I$(srctree)/arch/mips/include/asm/mach-lantiq +load-$(CONFIG_LANTIQ) = 0xffffffff80002000 +cflags-$(CONFIG_SOC_TYPE_XWAY) += -I$(srctree)/arch/mips/include/asm/mach-lantiq/xway diff --git a/arch/mips/lantiq/clk.c b/arch/mips/lantiq/clk.c new file mode 100644 index 00000000000..94560899d13 --- /dev/null +++ b/arch/mips/lantiq/clk.c @@ -0,0 +1,140 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2010 Thomas Langer <thomas.langer@lantiq.com> + * Copyright (C) 2010 John Crispin <blogic@openwrt.org> + */ +#include <linux/io.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/clk.h> +#include <linux/err.h> +#include <linux/list.h> + +#include <asm/time.h> +#include <asm/irq.h> +#include <asm/div64.h> + +#include <lantiq_soc.h> + +#include "clk.h" + +struct clk { + const char *name; + unsigned long rate; + unsigned long (*get_rate) (void); +}; + +static struct clk *cpu_clk; +static int cpu_clk_cnt; + +/* lantiq socs have 3 static clocks */ +static struct clk cpu_clk_generic[] = { + { + .name = "cpu", + .get_rate = ltq_get_cpu_hz, + }, { + .name = "fpi", + .get_rate = ltq_get_fpi_hz, + }, { + .name = "io", + .get_rate = ltq_get_io_region_clock, + }, +}; + +static struct resource ltq_cgu_resource = { + .name = "cgu", + .start = LTQ_CGU_BASE_ADDR, + .end = LTQ_CGU_BASE_ADDR + LTQ_CGU_SIZE - 1, + .flags = IORESOURCE_MEM, +}; + +/* remapped clock register range */ +void __iomem *ltq_cgu_membase; + +void clk_init(void) +{ + cpu_clk = cpu_clk_generic; + cpu_clk_cnt = ARRAY_SIZE(cpu_clk_generic); +} + +static inline int clk_good(struct clk *clk) +{ + return clk && !IS_ERR(clk); +} + +unsigned long clk_get_rate(struct clk *clk) +{ + if (unlikely(!clk_good(clk))) + return 0; + + if (clk->rate != 0) + return clk->rate; + + if (clk->get_rate != NULL) + return clk->get_rate(); + + return 0; +} +EXPORT_SYMBOL(clk_get_rate); + +struct clk *clk_get(struct device *dev, const char *id) +{ + int i; + + for (i = 0; i < cpu_clk_cnt; i++) + if (!strcmp(id, cpu_clk[i].name)) + return &cpu_clk[i]; + BUG(); + return ERR_PTR(-ENOENT); +} +EXPORT_SYMBOL(clk_get); + +void clk_put(struct clk *clk) +{ + /* not used */ +} +EXPORT_SYMBOL(clk_put); + +static inline u32 ltq_get_counter_resolution(void) +{ + u32 res; + + __asm__ __volatile__( + ".set push\n" + ".set mips32r2\n" + "rdhwr %0, $3\n" + ".set pop\n" + : "=&r" (res) + : /* no input */ + : "memory"); + + return res; +} + +void __init plat_time_init(void) +{ + struct clk *clk; + + if (insert_resource(&iomem_resource, <q_cgu_resource) < 0) + panic("Failed to insert cgu memory\n"); + + if (request_mem_region(ltq_cgu_resource.start, + resource_size(<q_cgu_resource), "cgu") < 0) + panic("Failed to request cgu memory\n"); + + ltq_cgu_membase = ioremap_nocache(ltq_cgu_resource.start, + resource_size(<q_cgu_resource)); + if (!ltq_cgu_membase) { + pr_err("Failed to remap cgu memory\n"); + unreachable(); + } + clk = clk_get(0, "cpu"); + mips_hpt_frequency = clk_get_rate(clk) / ltq_get_counter_resolution(); + write_c0_compare(read_c0_count()); + clk_put(clk); +} diff --git a/arch/mips/lantiq/clk.h b/arch/mips/lantiq/clk.h new file mode 100644 index 00000000000..3328925f2c3 --- /dev/null +++ b/arch/mips/lantiq/clk.h @@ -0,0 +1,18 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2010 John Crispin <blogic@openwrt.org> + */ + +#ifndef _LTQ_CLK_H__ +#define _LTQ_CLK_H__ + +extern void clk_init(void); + +extern unsigned long ltq_get_cpu_hz(void); +extern unsigned long ltq_get_fpi_hz(void); +extern unsigned long ltq_get_io_region_clock(void); + +#endif diff --git a/arch/mips/lantiq/devices.c b/arch/mips/lantiq/devices.c new file mode 100644 index 00000000000..7b82c34cb16 --- /dev/null +++ b/arch/mips/lantiq/devices.c @@ -0,0 +1,122 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2010 John Crispin <blogic@openwrt.org> + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/types.h> +#include <linux/string.h> +#include <linux/kernel.h> +#include <linux/reboot.h> +#include <linux/platform_device.h> +#include <linux/leds.h> +#include <linux/etherdevice.h> +#include <linux/reboot.h> +#include <linux/time.h> +#include <linux/io.h> +#include <linux/gpio.h> +#include <linux/leds.h> + +#include <asm/bootinfo.h> +#include <asm/irq.h> + +#include <lantiq_soc.h> + +#include "devices.h" + +/* nor flash */ +static struct resource ltq_nor_resource = { + .name = "nor", + .start = LTQ_FLASH_START, + .end = LTQ_FLASH_START + LTQ_FLASH_MAX - 1, + .flags = IORESOURCE_MEM, +}; + +static struct platform_device ltq_nor = { + .name = "ltq_nor", + .resource = <q_nor_resource, + .num_resources = 1, +}; + +void __init ltq_register_nor(struct physmap_flash_data *data) +{ + ltq_nor.dev.platform_data = data; + platform_device_register(<q_nor); +} + +/* watchdog */ +static struct resource ltq_wdt_resource = { + .name = "watchdog", + .start = LTQ_WDT_BASE_ADDR, + .end = LTQ_WDT_BASE_ADDR + LTQ_WDT_SIZE - 1, + .flags = IORESOURCE_MEM, +}; + +void __init ltq_register_wdt(void) +{ + platform_device_register_simple("ltq_wdt", 0, <q_wdt_resource, 1); +} + +/* asc ports */ +static struct resource ltq_asc0_resources[] = { + { + .name = "asc0", + .start = LTQ_ASC0_BASE_ADDR, + .end = LTQ_ASC0_BASE_ADDR + LTQ_ASC_SIZE - 1, + .flags = IORESOURCE_MEM, + }, + IRQ_RES(tx, LTQ_ASC_TIR(0)), + IRQ_RES(rx, LTQ_ASC_RIR(0)), + IRQ_RES(err, LTQ_ASC_EIR(0)), +}; + +static struct resource ltq_asc1_resources[] = { + { + .name = "asc1", + .start = LTQ_ASC1_BASE_ADDR, + .end = LTQ_ASC1_BASE_ADDR + LTQ_ASC_SIZE - 1, + .flags = IORESOURCE_MEM, + }, + IRQ_RES(tx, LTQ_ASC_TIR(1)), + IRQ_RES(rx, LTQ_ASC_RIR(1)), + IRQ_RES(err, LTQ_ASC_EIR(1)), +}; + +void __init ltq_register_asc(int port) +{ + switch (port) { + case 0: + platform_device_register_simple("ltq_asc", 0, + ltq_asc0_resources, ARRAY_SIZE(ltq_asc0_resources)); + break; + case 1: + platform_device_register_simple("ltq_asc", 1, + ltq_asc1_resources, ARRAY_SIZE(ltq_asc1_resources)); + break; + default: + break; + } +} + +#ifdef CONFIG_PCI +/* pci */ +static struct platform_device ltq_pci = { + .name = "ltq_pci", + .num_resources = 0, +}; + +void __init ltq_register_pci(struct ltq_pci_data *data) +{ + ltq_pci.dev.platform_data = data; + platform_device_register(<q_pci); +} +#else +void __init ltq_register_pci(struct ltq_pci_data *data) +{ + pr_err("kernel is compiled without PCI support\n"); +} +#endif diff --git a/arch/mips/lantiq/devices.h b/arch/mips/lantiq/devices.h new file mode 100644 index 00000000000..2947bb19a52 --- /dev/null +++ b/arch/mips/lantiq/devices.h @@ -0,0 +1,23 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2010 John Crispin <blogic@openwrt.org> + */ + +#ifndef _LTQ_DEVICES_H__ +#define _LTQ_DEVICES_H__ + +#include <lantiq_platform.h> +#include <linux/mtd/physmap.h> + +#define IRQ_RES(resname, irq) \ + {.name = #resname, .start = (irq), .flags = IORESOURCE_IRQ} + +extern void ltq_register_nor(struct physmap_flash_data *data); +extern void ltq_register_wdt(void); +extern void ltq_register_asc(int port); +extern void ltq_register_pci(struct ltq_pci_data *data); + +#endif diff --git a/arch/mips/lantiq/early_printk.c b/arch/mips/lantiq/early_printk.c new file mode 100644 index 00000000000..972e05f8763 --- /dev/null +++ b/arch/mips/lantiq/early_printk.c @@ -0,0 +1,33 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2010 John Crispin <blogic@openwrt.org> + */ + +#include <linux/init.h> +#include <linux/cpu.h> + +#include <lantiq.h> +#include <lantiq_soc.h> + +/* no ioremap possible at this early stage, lets use KSEG1 instead */ +#define LTQ_ASC_BASE KSEG1ADDR(LTQ_ASC1_BASE_ADDR) +#define ASC_BUF 1024 +#define LTQ_ASC_FSTAT ((u32 *)(LTQ_ASC_BASE + 0x0048)) +#define LTQ_ASC_TBUF ((u32 *)(LTQ_ASC_BASE + 0x0020)) +#define TXMASK 0x3F00 +#define TXOFFSET 8 + +void prom_putchar(char c) +{ + unsigned long flags; + + local_irq_save(flags); + do { } while ((ltq_r32(LTQ_ASC_FSTAT) & TXMASK) >> TXOFFSET); + if (c == '\n') + ltq_w32('\r', LTQ_ASC_TBUF); + ltq_w32(c, LTQ_ASC_TBUF); + local_irq_restore(flags); +} diff --git a/arch/mips/lantiq/irq.c b/arch/mips/lantiq/irq.c new file mode 100644 index 00000000000..fc89795cafd --- /dev/null +++ b/arch/mips/lantiq/irq.c @@ -0,0 +1,326 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2010 John Crispin <blogic@openwrt.org> + * Copyright (C) 2010 Thomas Langer <thomas.langer@lantiq.com> + */ + +#include <linux/interrupt.h> +#include <linux/ioport.h> + +#include <asm/bootinfo.h> +#include <asm/irq_cpu.h> + +#include <lantiq_soc.h> +#include <irq.h> + +/* register definitions */ +#define LTQ_ICU_IM0_ISR 0x0000 +#define LTQ_ICU_IM0_IER 0x0008 +#define LTQ_ICU_IM0_IOSR 0x0010 +#define LTQ_ICU_IM0_IRSR 0x0018 +#define LTQ_ICU_IM0_IMR 0x0020 +#define LTQ_ICU_IM1_ISR 0x0028 +#define LTQ_ICU_OFFSET (LTQ_ICU_IM1_ISR - LTQ_ICU_IM0_ISR) + +#define LTQ_EIU_EXIN_C 0x0000 +#define LTQ_EIU_EXIN_INIC 0x0004 +#define LTQ_EIU_EXIN_INEN 0x000C + +/* irq numbers used by the external interrupt unit (EIU) */ +#define LTQ_EIU_IR0 (INT_NUM_IM4_IRL0 + 30) +#define LTQ_EIU_IR1 (INT_NUM_IM3_IRL0 + 31) +#define LTQ_EIU_IR2 (INT_NUM_IM1_IRL0 + 26) +#define LTQ_EIU_IR3 INT_NUM_IM1_IRL0 +#define LTQ_EIU_IR4 (INT_NUM_IM1_IRL0 + 1) +#define LTQ_EIU_IR5 (INT_NUM_IM1_IRL0 + 2) +#define LTQ_EIU_IR6 (INT_NUM_IM2_IRL0 + 30) + +#define MAX_EIU 6 + +/* irqs generated by device attached to the EBU need to be acked in + * a special manner + */ +#define LTQ_ICU_EBU_IRQ 22 + +#define ltq_icu_w32(x, y) ltq_w32((x), ltq_icu_membase + (y)) +#define ltq_icu_r32(x) ltq_r32(ltq_icu_membase + (x)) + +#define ltq_eiu_w32(x, y) ltq_w32((x), ltq_eiu_membase + (y)) +#define ltq_eiu_r32(x) ltq_r32(ltq_eiu_membase + (x)) + +static unsigned short ltq_eiu_irq[MAX_EIU] = { + LTQ_EIU_IR0, + LTQ_EIU_IR1, + LTQ_EIU_IR2, + LTQ_EIU_IR3, + LTQ_EIU_IR4, + LTQ_EIU_IR5, +}; + +static struct resource ltq_icu_resource = { + .name = "icu", + .start = LTQ_ICU_BASE_ADDR, + .end = LTQ_ICU_BASE_ADDR + LTQ_ICU_SIZE - 1, + .flags = IORESOURCE_MEM, +}; + +static struct resource ltq_eiu_resource = { + .name = "eiu", + .start = LTQ_EIU_BASE_ADDR, + .end = LTQ_EIU_BASE_ADDR + LTQ_ICU_SIZE - 1, + .flags = IORESOURCE_MEM, +}; + +static void __iomem *ltq_icu_membase; +static void __iomem *ltq_eiu_membase; + +void ltq_disable_irq(struct irq_data *d) +{ + u32 ier = LTQ_ICU_IM0_IER; + int irq_nr = d->irq - INT_NUM_IRQ0; + + ier += LTQ_ICU_OFFSET * (irq_nr / INT_NUM_IM_OFFSET); + irq_nr %= INT_NUM_IM_OFFSET; + ltq_icu_w32(ltq_icu_r32(ier) & ~(1 << irq_nr), ier); +} + +void ltq_mask_and_ack_irq(struct irq_data *d) +{ + u32 ier = LTQ_ICU_IM0_IER; + u32 isr = LTQ_ICU_IM0_ISR; + int irq_nr = d->irq - INT_NUM_IRQ0; + + ier += LTQ_ICU_OFFSET * (irq_nr / INT_NUM_IM_OFFSET); + isr += LTQ_ICU_OFFSET * (irq_nr / INT_NUM_IM_OFFSET); + irq_nr %= INT_NUM_IM_OFFSET; + ltq_icu_w32(ltq_icu_r32(ier) & ~(1 << irq_nr), ier); + ltq_icu_w32((1 << irq_nr), isr); +} + +static void ltq_ack_irq(struct irq_data *d) +{ + u32 isr = LTQ_ICU_IM0_ISR; + int irq_nr = d->irq - INT_NUM_IRQ0; + + isr += LTQ_ICU_OFFSET * (irq_nr / INT_NUM_IM_OFFSET); + irq_nr %= INT_NUM_IM_OFFSET; + ltq_icu_w32((1 << irq_nr), isr); +} + +void ltq_enable_irq(struct irq_data *d) +{ + u32 ier = LTQ_ICU_IM0_IER; + int irq_nr = d->irq - INT_NUM_IRQ0; + + ier += LTQ_ICU_OFFSET * (irq_nr / INT_NUM_IM_OFFSET); + irq_nr %= INT_NUM_IM_OFFSET; + ltq_icu_w32(ltq_icu_r32(ier) | (1 << irq_nr), ier); +} + +static unsigned int ltq_startup_eiu_irq(struct irq_data *d) +{ + int i; + int irq_nr = d->irq - INT_NUM_IRQ0; + + ltq_enable_irq(d); + for (i = 0; i < MAX_EIU; i++) { + if (irq_nr == ltq_eiu_irq[i]) { + /* low level - we should really handle set_type */ + ltq_eiu_w32(ltq_eiu_r32(LTQ_EIU_EXIN_C) | + (0x6 << (i * 4)), LTQ_EIU_EXIN_C); + /* clear all pending */ + ltq_eiu_w32(ltq_eiu_r32(LTQ_EIU_EXIN_INIC) & ~(1 << i), + LTQ_EIU_EXIN_INIC); + /* enable */ + ltq_eiu_w32(ltq_eiu_r32(LTQ_EIU_EXIN_INEN) | (1 << i), + LTQ_EIU_EXIN_INEN); + break; + } + } + + return 0; +} + +static void ltq_shutdown_eiu_irq(struct irq_data *d) +{ + int i; + int irq_nr = d->irq - INT_NUM_IRQ0; + + ltq_disable_irq(d); + for (i = 0; i < MAX_EIU; i++) { + if (irq_nr == ltq_eiu_irq[i]) { + /* disable */ + ltq_eiu_w32(ltq_eiu_r32(LTQ_EIU_EXIN_INEN) & ~(1 << i), + LTQ_EIU_EXIN_INEN); + break; + } + } +} + +static struct irq_chip ltq_irq_type = { + "icu", + .irq_enable = ltq_enable_irq, + .irq_disable = ltq_disable_irq, + .irq_unmask = ltq_enable_irq, + .irq_ack = ltq_ack_irq, + .irq_mask = ltq_disable_irq, + .irq_mask_ack = ltq_mask_and_ack_irq, +}; + +static struct irq_chip ltq_eiu_type = { + "eiu", + .irq_startup = ltq_startup_eiu_irq, + .irq_shutdown = ltq_shutdown_eiu_irq, + .irq_enable = ltq_enable_irq, + .irq_disable = ltq_disable_irq, + .irq_unmask = ltq_enable_irq, + .irq_ack = ltq_ack_irq, + .irq_mask = ltq_disable_irq, + .irq_mask_ack = ltq_mask_and_ack_irq, +}; + +static void ltq_hw_irqdispatch(int module) +{ + u32 irq; + + irq = ltq_icu_r32(LTQ_ICU_IM0_IOSR + (module * LTQ_ICU_OFFSET)); + if (irq == 0) + return; + + /* silicon bug causes only the msb set to 1 to be valid. all + * other bits might be bogus + */ + irq = __fls(irq); + do_IRQ((int)irq + INT_NUM_IM0_IRL0 + (INT_NUM_IM_OFFSET * module)); + + /* if this is a EBU irq, we need to ack it or get a deadlock */ + if ((irq == LTQ_ICU_EBU_IRQ) && (module == 0)) + ltq_ebu_w32(ltq_ebu_r32(LTQ_EBU_PCC_ISTAT) | 0x10, + LTQ_EBU_PCC_ISTAT); +} + +#define DEFINE_HWx_IRQDISPATCH(x) \ + static void ltq_hw ## x ## _irqdispatch(void) \ + { \ + ltq_hw_irqdispatch(x); \ + } +DEFINE_HWx_IRQDISPATCH(0) +DEFINE_HWx_IRQDISPATCH(1) +DEFINE_HWx_IRQDISPATCH(2) +DEFINE_HWx_IRQDISPATCH(3) +DEFINE_HWx_IRQDISPATCH(4) + +static void ltq_hw5_irqdispatch(void) +{ + do_IRQ(MIPS_CPU_TIMER_IRQ); +} + +asmlinkage void plat_irq_dispatch(void) +{ + unsigned int pending = read_c0_status() & read_c0_cause() & ST0_IM; + unsigned int i; + + if (pending & CAUSEF_IP7) { + do_IRQ(MIPS_CPU_TIMER_IRQ); + goto out; + } else { + for (i = 0; i < 5; i++) { + if (pending & (CAUSEF_IP2 << i)) { + ltq_hw_irqdispatch(i); + goto out; + } + } + } + pr_alert("Spurious IRQ: CAUSE=0x%08x\n", read_c0_status()); + +out: + return; +} + +static struct irqaction cascade = { + .handler = no_action, + .flags = IRQF_DISABLED, + .name = "cascade", +}; + +void __init arch_init_irq(void) +{ + int i; + + if (insert_resource(&iomem_resource, <q_icu_resource) < 0) + panic("Failed to insert icu memory\n"); + + if (request_mem_region(ltq_icu_resource.start, + resource_size(<q_icu_resource), "icu") < 0) + panic("Failed to request icu memory\n"); + + ltq_icu_membase = ioremap_nocache(ltq_icu_resource.start, + resource_size(<q_icu_resource)); + if (!ltq_icu_membase) + panic("Failed to remap icu memory\n"); + + if (insert_resource(&iomem_resource, <q_eiu_resource) < 0) + panic("Failed to insert eiu memory\n"); + + if (request_mem_region(ltq_eiu_resource.start, + resource_size(<q_eiu_resource), "eiu") < 0) + panic("Failed to request eiu memory\n"); + + ltq_eiu_membase = ioremap_nocache(ltq_eiu_resource.start, + resource_size(<q_eiu_resource)); + if (!ltq_eiu_membase) + panic("Failed to remap eiu memory\n"); + + /* make sure all irqs are turned off by default */ + for (i = 0; i < 5; i++) + ltq_icu_w32(0, LTQ_ICU_IM0_IER + (i * LTQ_ICU_OFFSET)); + + /* clear all possibly pending interrupts */ + ltq_icu_w32(~0, LTQ_ICU_IM0_ISR + (i * LTQ_ICU_OFFSET)); + + mips_cpu_irq_init(); + + for (i = 2; i <= 6; i++) + setup_irq(i, &cascade); + + if (cpu_has_vint) { + pr_info("Setting up vectored interrupts\n"); + set_vi_handler(2, ltq_hw0_irqdispatch); + set_vi_handler(3, ltq_hw1_irqdispatch); + set_vi_handler(4, ltq_hw2_irqdispatch); + set_vi_handler(5, ltq_hw3_irqdispatch); + set_vi_handler(6, ltq_hw4_irqdispatch); + set_vi_handler(7, ltq_hw5_irqdispatch); + } + + for (i = INT_NUM_IRQ0; + i <= (INT_NUM_IRQ0 + (5 * INT_NUM_IM_OFFSET)); i++) + if ((i == LTQ_EIU_IR0) || (i == LTQ_EIU_IR1) || + (i == LTQ_EIU_IR2)) + irq_set_chip_and_handler(i, <q_eiu_type, + handle_level_irq); + /* EIU3-5 only exist on ar9 and vr9 */ + else if (((i == LTQ_EIU_IR3) || (i == LTQ_EIU_IR4) || + (i == LTQ_EIU_IR5)) && (ltq_is_ar9() || ltq_is_vr9())) + irq_set_chip_and_handler(i, <q_eiu_type, + handle_level_irq); + else + irq_set_chip_and_handler(i, <q_irq_type, + handle_level_irq); + +#if !defined(CONFIG_MIPS_MT_SMP) && !defined(CONFIG_MIPS_MT_SMTC) + set_c0_status(IE_IRQ0 | IE_IRQ1 | IE_IRQ2 | + IE_IRQ3 | IE_IRQ4 | IE_IRQ5); +#else + set_c0_status(IE_SW0 | IE_SW1 | IE_IRQ0 | IE_IRQ1 | + IE_IRQ2 | IE_IRQ3 | IE_IRQ4 | IE_IRQ5); +#endif +} + +unsigned int __cpuinit get_c0_compare_int(void) +{ + return CP0_LEGACY_COMPARE_IRQ; +} diff --git a/arch/mips/lantiq/machtypes.h b/arch/mips/lantiq/machtypes.h new file mode 100644 index 00000000000..7e01b8c484e --- /dev/null +++ b/arch/mips/lantiq/machtypes.h @@ -0,0 +1,20 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2010 John Crispin <blogic@openwrt.org> + */ + +#ifndef _LANTIQ_MACH_H__ +#define _LANTIQ_MACH_H__ + +#include <asm/mips_machine.h> + +enum lantiq_mach_type { + LTQ_MACH_GENERIC = 0, + LTQ_MACH_EASY50712, /* Danube evaluation board */ + LTQ_MACH_EASY50601, /* Amazon SE evaluation board */ +}; + +#endif diff --git a/arch/mips/lantiq/prom.c b/arch/mips/lantiq/prom.c new file mode 100644 index 00000000000..56ba007bf1e --- /dev/null +++ b/arch/mips/lantiq/prom.c @@ -0,0 +1,71 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2010 John Crispin <blogic@openwrt.org> + */ + +#include <linux/module.h> +#include <linux/clk.h> +#include <asm/bootinfo.h> +#include <asm/time.h> + +#include <lantiq.h> + +#include "prom.h" +#include "clk.h" + +static struct ltq_soc_info soc_info; + +unsigned int ltq_get_cpu_ver(void) +{ + return soc_info.rev; +} +EXPORT_SYMBOL(ltq_get_cpu_ver); + +unsigned int ltq_get_soc_type(void) +{ + return soc_info.type; +} +EXPORT_SYMBOL(ltq_get_soc_type); + +const char *get_system_type(void) +{ + return soc_info.sys_type; +} + +void prom_free_prom_memory(void) +{ +} + +static void __init prom_init_cmdline(void) +{ + int argc = fw_arg0; + char **argv = (char **) KSEG1ADDR(fw_arg1); + int i; + + for (i = 0; i < argc; i++) { + char *p = (char *) KSEG1ADDR(argv[i]); + + if (p && *p) { + strlcat(arcs_cmdline, p, sizeof(arcs_cmdline)); + strlcat(arcs_cmdline, " ", sizeof(arcs_cmdline)); + } + } +} + +void __init prom_init(void) +{ + struct clk *clk; + + ltq_soc_detect(&soc_info); + clk_init(); + clk = clk_get(0, "cpu"); + snprintf(soc_info.sys_type, LTQ_SYS_TYPE_LEN - 1, "%s rev1.%d", + soc_info.name, soc_info.rev); + clk_put(clk); + soc_info.sys_type[LTQ_SYS_TYPE_LEN - 1] = '\0'; + pr_info("SoC: %s\n", soc_info.sys_type); + prom_init_cmdline(); +} diff --git a/arch/mips/lantiq/prom.h b/arch/mips/lantiq/prom.h new file mode 100644 index 00000000000..b4229d94280 --- /dev/null +++ b/arch/mips/lantiq/prom.h @@ -0,0 +1,25 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2010 John Crispin <blogic@openwrt.org> + */ + +#ifndef _LTQ_PROM_H__ +#define _LTQ_PROM_H__ + +#define LTQ_SYS_TYPE_LEN 0x100 + +struct ltq_soc_info { + unsigned char *name; + unsigned int rev; + unsigned int partnum; + unsigned int type; + unsigned char sys_type[LTQ_SYS_TYPE_LEN]; +}; + +extern void ltq_soc_detect(struct ltq_soc_info *i); +extern void ltq_soc_setup(void); + +#endif diff --git a/arch/mips/lantiq/setup.c b/arch/mips/lantiq/setup.c new file mode 100644 index 00000000000..9b8af77ed0f --- /dev/null +++ b/arch/mips/lantiq/setup.c @@ -0,0 +1,66 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2010 John Crispin <blogic@openwrt.org> + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/io.h> +#include <linux/ioport.h> +#include <asm/bootinfo.h> + +#include <lantiq_soc.h> + +#include "machtypes.h" +#include "devices.h" +#include "prom.h" + +void __init plat_mem_setup(void) +{ + /* assume 16M as default incase uboot fails to pass proper ramsize */ + unsigned long memsize = 16; + char **envp = (char **) KSEG1ADDR(fw_arg2); + + ioport_resource.start = IOPORT_RESOURCE_START; + ioport_resource.end = IOPORT_RESOURCE_END; + iomem_resource.start = IOMEM_RESOURCE_START; + iomem_resource.end = IOMEM_RESOURCE_END; + + set_io_port_base((unsigned long) KSEG1); + + while (*envp) { + char *e = (char *)KSEG1ADDR(*envp); + if (!strncmp(e, "memsize=", 8)) { + e += 8; + if (strict_strtoul(e, 0, &memsize)) + pr_warn("bad memsize specified\n"); + } + envp++; + } + memsize *= 1024 * 1024; + add_memory_region(0x00000000, memsize, BOOT_MEM_RAM); +} + +static int __init +lantiq_setup(void) +{ + ltq_soc_setup(); + mips_machine_setup(); + return 0; +} + +arch_initcall(lantiq_setup); + +static void __init +lantiq_generic_init(void) +{ + /* Nothing to do */ +} + +MIPS_MACHINE(LTQ_MACH_GENERIC, + "Generic", + "Generic Lantiq based board", + lantiq_generic_init); diff --git a/arch/mips/lantiq/xway/Kconfig b/arch/mips/lantiq/xway/Kconfig new file mode 100644 index 00000000000..2b857de3662 --- /dev/null +++ b/arch/mips/lantiq/xway/Kconfig @@ -0,0 +1,23 @@ +if SOC_XWAY + +menu "MIPS Machine" + +config LANTIQ_MACH_EASY50712 + bool "Easy50712 - Danube" + default y + +endmenu + +endif + +if SOC_AMAZON_SE + +menu "MIPS Machine" + +config LANTIQ_MACH_EASY50601 + bool "Easy50601 - Amazon SE" + default y + +endmenu + +endif diff --git a/arch/mips/lantiq/xway/Makefile b/arch/mips/lantiq/xway/Makefile new file mode 100644 index 00000000000..c517f2e7756 --- /dev/null +++ b/arch/mips/lantiq/xway/Makefile @@ -0,0 +1,7 @@ +obj-y := pmu.o ebu.o reset.o gpio.o gpio_stp.o gpio_ebu.o devices.o dma.o + +obj-$(CONFIG_SOC_XWAY) += clk-xway.o prom-xway.o setup-xway.o +obj-$(CONFIG_SOC_AMAZON_SE) += clk-ase.o prom-ase.o setup-ase.o + +obj-$(CONFIG_LANTIQ_MACH_EASY50712) += mach-easy50712.o +obj-$(CONFIG_LANTIQ_MACH_EASY50601) += mach-easy50601.o diff --git a/arch/mips/lantiq/xway/clk-ase.c b/arch/mips/lantiq/xway/clk-ase.c new file mode 100644 index 00000000000..22d823acd53 --- /dev/null +++ b/arch/mips/lantiq/xway/clk-ase.c @@ -0,0 +1,48 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2011 John Crispin <blogic@openwrt.org> + */ + +#include <linux/io.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/clk.h> + +#include <asm/time.h> +#include <asm/irq.h> +#include <asm/div64.h> + +#include <lantiq_soc.h> + +/* cgu registers */ +#define LTQ_CGU_SYS 0x0010 + +unsigned int ltq_get_io_region_clock(void) +{ + return CLOCK_133M; +} +EXPORT_SYMBOL(ltq_get_io_region_clock); + +unsigned int ltq_get_fpi_bus_clock(int fpi) +{ + return CLOCK_133M; +} +EXPORT_SYMBOL(ltq_get_fpi_bus_clock); + +unsigned int ltq_get_cpu_hz(void) +{ + if (ltq_cgu_r32(LTQ_CGU_SYS) & (1 << 5)) + return CLOCK_266M; + else + return CLOCK_133M; +} +EXPORT_SYMBOL(ltq_get_cpu_hz); + +unsigned int ltq_get_fpi_hz(void) +{ + return CLOCK_133M; +} +EXPORT_SYMBOL(ltq_get_fpi_hz); diff --git a/arch/mips/lantiq/xway/clk-xway.c b/arch/mips/lantiq/xway/clk-xway.c new file mode 100644 index 00000000000..ddd39593c58 --- /dev/null +++ b/arch/mips/lantiq/xway/clk-xway.c @@ -0,0 +1,223 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2010 John Crispin <blogic@openwrt.org> + */ + +#include <linux/io.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/clk.h> + +#include <asm/time.h> +#include <asm/irq.h> +#include <asm/div64.h> + +#include <lantiq_soc.h> + +static unsigned int ltq_ram_clocks[] = { + CLOCK_167M, CLOCK_133M, CLOCK_111M, CLOCK_83M }; +#define DDR_HZ ltq_ram_clocks[ltq_cgu_r32(LTQ_CGU_SYS) & 0x3] + +#define BASIC_FREQUENCY_1 35328000 +#define BASIC_FREQUENCY_2 36000000 +#define BASIS_REQUENCY_USB 12000000 + +#define GET_BITS(x, msb, lsb) \ + (((x) & ((1 << ((msb) + 1)) - 1)) >> (lsb)) + +#define LTQ_CGU_PLL0_CFG 0x0004 +#define LTQ_CGU_PLL1_CFG 0x0008 +#define LTQ_CGU_PLL2_CFG 0x000C +#define LTQ_CGU_SYS 0x0010 +#define LTQ_CGU_UPDATE 0x0014 +#define LTQ_CGU_IF_CLK 0x0018 +#define LTQ_CGU_OSC_CON 0x001C +#define LTQ_CGU_SMD 0x0020 +#define LTQ_CGU_CT1SR 0x0028 +#define LTQ_CGU_CT2SR 0x002C +#define LTQ_CGU_PCMCR 0x0030 +#define LTQ_CGU_PCI_CR 0x0034 +#define LTQ_CGU_PD_PC 0x0038 +#define LTQ_CGU_FMR 0x003C + +#define CGU_PLL0_PHASE_DIVIDER_ENABLE \ + (ltq_cgu_r32(LTQ_CGU_PLL0_CFG) & (1 << 31)) +#define CGU_PLL0_BYPASS \ + (ltq_cgu_r32(LTQ_CGU_PLL0_CFG) & (1 << 30)) +#define CGU_PLL0_CFG_DSMSEL \ + (ltq_cgu_r32(LTQ_CGU_PLL0_CFG) & (1 << 28)) +#define CGU_PLL0_CFG_FRAC_EN \ + (ltq_cgu_r32(LTQ_CGU_PLL0_CFG) & (1 << 27)) +#define CGU_PLL1_SRC \ + (ltq_cgu_r32(LTQ_CGU_PLL1_CFG) & (1 << 31)) +#define CGU_PLL2_PHASE_DIVIDER_ENABLE \ + (ltq_cgu_r32(LTQ_CGU_PLL2_CFG) & (1 << 20)) +#define CGU_SYS_FPI_SEL (1 << 6) +#define CGU_SYS_DDR_SEL 0x3 +#define CGU_PLL0_SRC (1 << 29) + +#define CGU_PLL0_CFG_PLLK GET_BITS(ltq_cgu_r32(LTQ_CGU_PLL0_CFG), 26, 17) +#define CGU_PLL0_CFG_PLLN GET_BITS(ltq_cgu_r32(LTQ_CGU_PLL0_CFG), 12, 6) +#define CGU_PLL0_CFG_PLLM GET_BITS(ltq_cgu_r32(LTQ_CGU_PLL0_CFG), 5, 2) +#define CGU_PLL2_SRC GET_BITS(ltq_cgu_r32(LTQ_CGU_PLL2_CFG), 18, 17) +#define CGU_PLL2_CFG_INPUT_DIV GET_BITS(ltq_cgu_r32(LTQ_CGU_PLL2_CFG), 16, 13) + +static unsigned int ltq_get_pll0_fdiv(void); + +static inline unsigned int get_input_clock(int pll) +{ + switch (pll) { + case 0: + if (ltq_cgu_r32(LTQ_CGU_PLL0_CFG) & CGU_PLL0_SRC) + return BASIS_REQUENCY_USB; + else if (CGU_PLL0_PHASE_DIVIDER_ENABLE) + return BASIC_FREQUENCY_1; + else + return BASIC_FREQUENCY_2; + case 1: + if (CGU_PLL1_SRC) + return BASIS_REQUENCY_USB; + else if (CGU_PLL0_PHASE_DIVIDER_ENABLE) + return BASIC_FREQUENCY_1; + else + return BASIC_FREQUENCY_2; + case 2: + switch (CGU_PLL2_SRC) { + case 0: + return ltq_get_pll0_fdiv(); + case 1: + return CGU_PLL2_PHASE_DIVIDER_ENABLE ? + BASIC_FREQUENCY_1 : + BASIC_FREQUENCY_2; + case 2: + return BASIS_REQUENCY_USB; + } + default: + return 0; + } +} + +static inline unsigned int cal_dsm(int pll, unsigned int num, unsigned int den) +{ + u64 res, clock = get_input_clock(pll); + + res = num * clock; + do_div(res, den); + return res; +} + +static inline unsigned int mash_dsm(int pll, unsigned int M, unsigned int N, + unsigned int K) +{ + unsigned int num = ((N + 1) << 10) + K; + unsigned int den = (M + 1) << 10; + + return cal_dsm(pll, num, den); +} + +static inline unsigned int ssff_dsm_1(int pll, unsigned int M, unsigned int N, + unsigned int K) +{ + unsigned int num = ((N + 1) << 11) + K + 512; + unsigned int den = (M + 1) << 11; + + return cal_dsm(pll, num, den); +} + +static inline unsigned int ssff_dsm_2(int pll, unsigned int M, unsigned int N, + unsigned int K) +{ + unsigned int num = K >= 512 ? + ((N + 1) << 12) + K - 512 : ((N + 1) << 12) + K + 3584; + unsigned int den = (M + 1) << 12; + + return cal_dsm(pll, num, den); +} + +static inline unsigned int dsm(int pll, unsigned int M, unsigned int N, + unsigned int K, unsigned int dsmsel, unsigned int phase_div_en) +{ + if (!dsmsel) + return mash_dsm(pll, M, N, K); + else if (!phase_div_en) + return mash_dsm(pll, M, N, K); + else + return ssff_dsm_2(pll, M, N, K); +} + +static inline unsigned int ltq_get_pll0_fosc(void) +{ + if (CGU_PLL0_BYPASS) + return get_input_clock(0); + else + return !CGU_PLL0_CFG_FRAC_EN + ? dsm(0, CGU_PLL0_CFG_PLLM, CGU_PLL0_CFG_PLLN, 0, + CGU_PLL0_CFG_DSMSEL, + CGU_PLL0_PHASE_DIVIDER_ENABLE) + : dsm(0, CGU_PLL0_CFG_PLLM, CGU_PLL0_CFG_PLLN, + CGU_PLL0_CFG_PLLK, CGU_PLL0_CFG_DSMSEL, + CGU_PLL0_PHASE_DIVIDER_ENABLE); +} + +static unsigned int ltq_get_pll0_fdiv(void) +{ + unsigned int div = CGU_PLL2_CFG_INPUT_DIV + 1; + + return (ltq_get_pll0_fosc() + (div >> 1)) / div; +} + +unsigned int ltq_get_io_region_clock(void) +{ + unsigned int ret = ltq_get_pll0_fosc(); + + switch (ltq_cgu_r32(LTQ_CGU_PLL2_CFG) & CGU_SYS_DDR_SEL) { + default: + case 0: + return (ret + 1) / 2; + case 1: + return (ret * 2 + 2) / 5; + case 2: + return (ret + 1) / 3; + case 3: + return (ret + 2) / 4; + } +} +EXPORT_SYMBOL(ltq_get_io_region_clock); + +unsigned int ltq_get_fpi_bus_clock(int fpi) +{ + unsigned int ret = ltq_get_io_region_clock(); + + if ((fpi == 2) && (ltq_cgu_r32(LTQ_CGU_SYS) & CGU_SYS_FPI_SEL)) + ret >>= 1; + return ret; +} +EXPORT_SYMBOL(ltq_get_fpi_bus_clock); + +unsigned int ltq_get_cpu_hz(void) +{ + switch (ltq_cgu_r32(LTQ_CGU_SYS) & 0xc) { + case 0: + return CLOCK_333M; + case 4: + return DDR_HZ; + case 8: + return DDR_HZ << 1; + default: + return DDR_HZ >> 1; + } +} +EXPORT_SYMBOL(ltq_get_cpu_hz); + +unsigned int ltq_get_fpi_hz(void) +{ + unsigned int ddr_clock = DDR_HZ; + + if (ltq_cgu_r32(LTQ_CGU_SYS) & 0x40) + return ddr_clock >> 1; + return ddr_clock; +} +EXPORT_SYMBOL(ltq_get_fpi_hz); diff --git a/arch/mips/lantiq/xway/devices.c b/arch/mips/lantiq/xway/devices.c new file mode 100644 index 00000000000..e09e789dfc2 --- /dev/null +++ b/arch/mips/lantiq/xway/devices.c @@ -0,0 +1,121 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2010 John Crispin <blogic@openwrt.org> + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/types.h> +#include <linux/string.h> +#include <linux/mtd/physmap.h> +#include <linux/kernel.h> +#include <linux/reboot.h> +#include <linux/platform_device.h> +#include <linux/leds.h> +#include <linux/etherdevice.h> +#include <linux/reboot.h> +#include <linux/time.h> +#include <linux/io.h> +#include <linux/gpio.h> +#include <linux/leds.h> + +#include <asm/bootinfo.h> +#include <asm/irq.h> + +#include <lantiq_soc.h> +#include <lantiq_irq.h> +#include <lantiq_platform.h> + +#include "devices.h" + +/* gpio */ +static struct resource ltq_gpio_resource[] = { + { + .name = "gpio0", + .start = LTQ_GPIO0_BASE_ADDR, + .end = LTQ_GPIO0_BASE_ADDR + LTQ_GPIO_SIZE - 1, + .flags = IORESOURCE_MEM, + }, { + .name = "gpio1", + .start = LTQ_GPIO1_BASE_ADDR, + .end = LTQ_GPIO1_BASE_ADDR + LTQ_GPIO_SIZE - 1, + .flags = IORESOURCE_MEM, + }, { + .name = "gpio2", + .start = LTQ_GPIO2_BASE_ADDR, + .end = LTQ_GPIO2_BASE_ADDR + LTQ_GPIO_SIZE - 1, + .flags = IORESOURCE_MEM, + } +}; + +void __init ltq_register_gpio(void) +{ + platform_device_register_simple("ltq_gpio", 0, + <q_gpio_resource[0], 1); + platform_device_register_simple("ltq_gpio", 1, + <q_gpio_resource[1], 1); + + /* AR9 and VR9 have an extra gpio block */ + if (ltq_is_ar9() || ltq_is_vr9()) { + platform_device_register_simple("ltq_gpio", 2, + <q_gpio_resource[2], 1); + } +} + +/* serial to parallel conversion */ +static struct resource ltq_stp_resource = { + .name = "stp", + .start = LTQ_STP_BASE_ADDR, + .end = LTQ_STP_BASE_ADDR + LTQ_STP_SIZE - 1, + .flags = IORESOURCE_MEM, +}; + +void __init ltq_register_gpio_stp(void) +{ + platform_device_register_simple("ltq_stp", 0, <q_stp_resource, 1); +} + +/* asc ports - amazon se has its own serial mapping */ +static struct resource ltq_ase_asc_resources[] = { + { + .name = "asc0", + .start = LTQ_ASC1_BASE_ADDR, + .end = LTQ_ASC1_BASE_ADDR + LTQ_ASC_SIZE - 1, + .flags = IORESOURCE_MEM, + }, + IRQ_RES(tx, LTQ_ASC_ASE_TIR), + IRQ_RES(rx, LTQ_ASC_ASE_RIR), + IRQ_RES(err, LTQ_ASC_ASE_EIR), +}; + +void __init ltq_register_ase_asc(void) +{ + platform_device_register_simple("ltq_asc", 0, + ltq_ase_asc_resources, ARRAY_SIZE(ltq_ase_asc_resources)); +} + +/* ethernet */ +static struct resource ltq_etop_resources = { + .name = "etop", + .start = LTQ_ETOP_BASE_ADDR, + .end = LTQ_ETOP_BASE_ADDR + LTQ_ETOP_SIZE - 1, + .flags = IORESOURCE_MEM, +}; + +static struct platform_device ltq_etop = { + .name = "ltq_etop", + .resource = <q_etop_resources, + .num_resources = 1, +}; + +void __init +ltq_register_etop(struct ltq_eth_data *eth) +{ + if (eth) { + ltq_etop.dev.platform_data = eth; + platform_device_register(<q_etop); + } +} diff --git a/arch/mips/lantiq/xway/devices.h b/arch/mips/lantiq/xway/devices.h new file mode 100644 index 00000000000..e90493471bc --- /dev/null +++ b/arch/mips/lantiq/xway/devices.h @@ -0,0 +1,20 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2010 John Crispin <blogic@openwrt.org> + */ + +#ifndef _LTQ_DEVICES_XWAY_H__ +#define _LTQ_DEVICES_XWAY_H__ + +#include "../devices.h" +#include <linux/phy.h> + +extern void ltq_register_gpio(void); +extern void ltq_register_gpio_stp(void); +extern void ltq_register_ase_asc(void); +extern void ltq_register_etop(struct ltq_eth_data *eth); + +#endif diff --git a/arch/mips/lantiq/xway/dma.c b/arch/mips/lantiq/xway/dma.c new file mode 100644 index 00000000000..4278a459d6c --- /dev/null +++ b/arch/mips/lantiq/xway/dma.c @@ -0,0 +1,253 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. + * + * Copyright (C) 2011 John Crispin <blogic@openwrt.org> + */ + +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/io.h> +#include <linux/dma-mapping.h> + +#include <lantiq_soc.h> +#include <xway_dma.h> + +#define LTQ_DMA_CTRL 0x10 +#define LTQ_DMA_CPOLL 0x14 +#define LTQ_DMA_CS 0x18 +#define LTQ_DMA_CCTRL 0x1C +#define LTQ_DMA_CDBA 0x20 +#define LTQ_DMA_CDLEN 0x24 +#define LTQ_DMA_CIS 0x28 +#define LTQ_DMA_CIE 0x2C +#define LTQ_DMA_PS 0x40 +#define LTQ_DMA_PCTRL 0x44 +#define LTQ_DMA_IRNEN 0xf4 + +#define DMA_DESCPT BIT(3) /* descriptor complete irq */ +#define DMA_TX BIT(8) /* TX channel direction */ +#define DMA_CHAN_ON BIT(0) /* channel on / off bit */ +#define DMA_PDEN BIT(6) /* enable packet drop */ +#define DMA_CHAN_RST BIT(1) /* channel on / off bit */ +#define DMA_RESET BIT(0) /* channel on / off bit */ +#define DMA_IRQ_ACK 0x7e /* IRQ status register */ +#define DMA_POLL BIT(31) /* turn on channel polling */ +#define DMA_CLK_DIV4 BIT(6) /* polling clock divider */ +#define DMA_2W_BURST BIT(1) /* 2 word burst length */ +#define DMA_MAX_CHANNEL 20 /* the soc has 20 channels */ +#define DMA_ETOP_ENDIANESS (0xf << 8) /* endianess swap etop channels */ +#define DMA_WEIGHT (BIT(17) | BIT(16)) /* default channel wheight */ + +#define ltq_dma_r32(x) ltq_r32(ltq_dma_membase + (x)) +#define ltq_dma_w32(x, y) ltq_w32(x, ltq_dma_membase + (y)) +#define ltq_dma_w32_mask(x, y, z) ltq_w32_mask(x, y, \ + ltq_dma_membase + (z)) + +static struct resource ltq_dma_resource = { + .name = "dma", + .start = LTQ_DMA_BASE_ADDR, + .end = LTQ_DMA_BASE_ADDR + LTQ_DMA_SIZE - 1, + .flags = IORESOURCE_MEM, +}; + +static void __iomem *ltq_dma_membase; + +void +ltq_dma_enable_irq(struct ltq_dma_channel *ch) +{ + unsigned long flags; + + local_irq_save(flags); + ltq_dma_w32(ch->nr, LTQ_DMA_CS); + ltq_dma_w32_mask(0, 1 << ch->nr, LTQ_DMA_IRNEN); + local_irq_restore(flags); +} +EXPORT_SYMBOL_GPL(ltq_dma_enable_irq); + +void +ltq_dma_disable_irq(struct ltq_dma_channel *ch) +{ + unsigned long flags; + + local_irq_save(flags); + ltq_dma_w32(ch->nr, LTQ_DMA_CS); + ltq_dma_w32_mask(1 << ch->nr, 0, LTQ_DMA_IRNEN); + local_irq_restore(flags); +} +EXPORT_SYMBOL_GPL(ltq_dma_disable_irq); + +void +ltq_dma_ack_irq(struct ltq_dma_channel *ch) +{ + unsigned long flags; + + local_irq_save(flags); + ltq_dma_w32(ch->nr, LTQ_DMA_CS); + ltq_dma_w32(DMA_IRQ_ACK, LTQ_DMA_CIS); + local_irq_restore(flags); +} +EXPORT_SYMBOL_GPL(ltq_dma_ack_irq); + +void +ltq_dma_open(struct ltq_dma_channel *ch) +{ + unsigned long flag; + + local_irq_save(flag); + ltq_dma_w32(ch->nr, LTQ_DMA_CS); + ltq_dma_w32_mask(0, DMA_CHAN_ON, LTQ_DMA_CCTRL); + ltq_dma_enable_irq(ch); + local_irq_restore(flag); +} +EXPORT_SYMBOL_GPL(ltq_dma_open); + +void +ltq_dma_close(struct ltq_dma_channel *ch) +{ + unsigned long flag; + + local_irq_save(flag); + ltq_dma_w32(ch->nr, LTQ_DMA_CS); + ltq_dma_w32_mask(DMA_CHAN_ON, 0, LTQ_DMA_CCTRL); + ltq_dma_disable_irq(ch); + local_irq_restore(flag); +} +EXPORT_SYMBOL_GPL(ltq_dma_close); + +static void +ltq_dma_alloc(struct ltq_dma_channel *ch) +{ + unsigned long flags; + + ch->desc = 0; + ch->desc_base = dma_alloc_coherent(NULL, + LTQ_DESC_NUM * LTQ_DESC_SIZE, + &ch->phys, GFP_ATOMIC); + memset(ch->desc_base, 0, LTQ_DESC_NUM * LTQ_DESC_SIZE); + + local_irq_save(flags); + ltq_dma_w32(ch->nr, LTQ_DMA_CS); + ltq_dma_w32(ch->phys, LTQ_DMA_CDBA); + ltq_dma_w32(LTQ_DESC_NUM, LTQ_DMA_CDLEN); + ltq_dma_w32_mask(DMA_CHAN_ON, 0, LTQ_DMA_CCTRL); + wmb(); + ltq_dma_w32_mask(0, DMA_CHAN_RST, LTQ_DMA_CCTRL); + while (ltq_dma_r32(LTQ_DMA_CCTRL) & DMA_CHAN_RST) + ; + local_irq_restore(flags); +} + +void +ltq_dma_alloc_tx(struct ltq_dma_channel *ch) +{ + unsigned long flags; + + ltq_dma_alloc(ch); + + local_irq_save(flags); + ltq_dma_w32(DMA_DESCPT, LTQ_DMA_CIE); + ltq_dma_w32_mask(0, 1 << ch->nr, LTQ_DMA_IRNEN); + ltq_dma_w32(DMA_WEIGHT | DMA_TX, LTQ_DMA_CCTRL); + local_irq_restore(flags); +} +EXPORT_SYMBOL_GPL(ltq_dma_alloc_tx); + +void +ltq_dma_alloc_rx(struct ltq_dma_channel *ch) +{ + unsigned long flags; + + ltq_dma_alloc(ch); + + local_irq_save(flags); + ltq_dma_w32(DMA_DESCPT, LTQ_DMA_CIE); + ltq_dma_w32_mask(0, 1 << ch->nr, LTQ_DMA_IRNEN); + ltq_dma_w32(DMA_WEIGHT, LTQ_DMA_CCTRL); + local_irq_restore(flags); +} +EXPORT_SYMBOL_GPL(ltq_dma_alloc_rx); + +void +ltq_dma_free(struct ltq_dma_channel *ch) +{ + if (!ch->desc_base) + return; + ltq_dma_close(ch); + dma_free_coherent(NULL, LTQ_DESC_NUM * LTQ_DESC_SIZE, + ch->desc_base, ch->phys); +} +EXPORT_SYMBOL_GPL(ltq_dma_free); + +void +ltq_dma_init_port(int p) +{ + ltq_dma_w32(p, LTQ_DMA_PS); + switch (p) { + case DMA_PORT_ETOP: + /* + * Tell the DMA engine to swap the endianess of data frames and + * drop packets if the channel arbitration fails. + */ + ltq_dma_w32_mask(0, DMA_ETOP_ENDIANESS | DMA_PDEN, + LTQ_DMA_PCTRL); + break; + + case DMA_PORT_DEU: + ltq_dma_w32((DMA_2W_BURST << 4) | (DMA_2W_BURST << 2), + LTQ_DMA_PCTRL); + break; + + default: + break; + } +} +EXPORT_SYMBOL_GPL(ltq_dma_init_port); + +int __init +ltq_dma_init(void) +{ + int i; + + /* insert and request the memory region */ + if (insert_resource(&iomem_resource, <q_dma_resource) < 0) + panic("Failed to insert dma memory\n"); + + if (request_mem_region(ltq_dma_resource.start, + resource_size(<q_dma_resource), "dma") < 0) + panic("Failed to request dma memory\n"); + + /* remap dma register range */ + ltq_dma_membase = ioremap_nocache(ltq_dma_resource.start, + resource_size(<q_dma_resource)); + if (!ltq_dma_membase) + panic("Failed to remap dma memory\n"); + + /* power up and reset the dma engine */ + ltq_pmu_enable(PMU_DMA); + ltq_dma_w32_mask(0, DMA_RESET, LTQ_DMA_CTRL); + + /* disable all interrupts */ + ltq_dma_w32(0, LTQ_DMA_IRNEN); + + /* reset/configure each channel */ + for (i = 0; i < DMA_MAX_CHANNEL; i++) { + ltq_dma_w32(i, LTQ_DMA_CS); + ltq_dma_w32(DMA_CHAN_RST, LTQ_DMA_CCTRL); + ltq_dma_w32(DMA_POLL | DMA_CLK_DIV4, LTQ_DMA_CPOLL); + ltq_dma_w32_mask(DMA_CHAN_ON, 0, LTQ_DMA_CCTRL); + } + return 0; +} + +postcore_initcall(ltq_dma_init); diff --git a/arch/mips/lantiq/xway/ebu.c b/arch/mips/lantiq/xway/ebu.c new file mode 100644 index 00000000000..66eb52fa50a --- /dev/null +++ b/arch/mips/lantiq/xway/ebu.c @@ -0,0 +1,53 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * EBU - the external bus unit attaches PCI, NOR and NAND + * + * Copyright (C) 2010 John Crispin <blogic@openwrt.org> + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/version.h> +#include <linux/ioport.h> + +#include <lantiq_soc.h> + +/* all access to the ebu must be locked */ +DEFINE_SPINLOCK(ebu_lock); +EXPORT_SYMBOL_GPL(ebu_lock); + +static struct resource ltq_ebu_resource = { + .name = "ebu", + .start = LTQ_EBU_BASE_ADDR, + .end = LTQ_EBU_BASE_ADDR + LTQ_EBU_SIZE - 1, + .flags = IORESOURCE_MEM, +}; + +/* remapped base addr of the clock unit and external bus unit */ +void __iomem *ltq_ebu_membase; + +static int __init lantiq_ebu_init(void) +{ + /* insert and request the memory region */ + if (insert_resource(&iomem_resource, <q_ebu_resource) < 0) + panic("Failed to insert ebu memory\n"); + + if (request_mem_region(ltq_ebu_resource.start, + resource_size(<q_ebu_resource), "ebu") < 0) + panic("Failed to request ebu memory\n"); + + /* remap ebu register range */ + ltq_ebu_membase = ioremap_nocache(ltq_ebu_resource.start, + resource_size(<q_ebu_resource)); + if (!ltq_ebu_membase) + panic("Failed to remap ebu memory\n"); + + /* make sure to unprotect the memory region where flash is located */ + ltq_ebu_w32(ltq_ebu_r32(LTQ_EBU_BUSCON0) & ~EBU_WRDIS, LTQ_EBU_BUSCON0); + return 0; +} + +postcore_initcall(lantiq_ebu_init); diff --git a/arch/mips/lantiq/xway/gpio.c b/arch/mips/lantiq/xway/gpio.c new file mode 100644 index 00000000000..a321451a545 --- /dev/null +++ b/arch/mips/lantiq/xway/gpio.c @@ -0,0 +1,195 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2010 John Crispin <blogic@openwrt.org> + */ + +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/gpio.h> +#include <linux/ioport.h> +#include <linux/io.h> + +#include <lantiq_soc.h> + +#define LTQ_GPIO_OUT 0x00 +#define LTQ_GPIO_IN 0x04 +#define LTQ_GPIO_DIR 0x08 +#define LTQ_GPIO_ALTSEL0 0x0C +#define LTQ_GPIO_ALTSEL1 0x10 +#define LTQ_GPIO_OD 0x14 + +#define PINS_PER_PORT 16 +#define MAX_PORTS 3 + +#define ltq_gpio_getbit(m, r, p) (!!(ltq_r32(m + r) & (1 << p))) +#define ltq_gpio_setbit(m, r, p) ltq_w32_mask(0, (1 << p), m + r) +#define ltq_gpio_clearbit(m, r, p) ltq_w32_mask((1 << p), 0, m + r) + +struct ltq_gpio { + void __iomem *membase; + struct gpio_chip chip; +}; + +static struct ltq_gpio ltq_gpio_port[MAX_PORTS]; + +int gpio_to_irq(unsigned int gpio) +{ + return -EINVAL; +} +EXPORT_SYMBOL(gpio_to_irq); + +int irq_to_gpio(unsigned int gpio) +{ + return -EINVAL; +} +EXPORT_SYMBOL(irq_to_gpio); + +int ltq_gpio_request(unsigned int pin, unsigned int alt0, + unsigned int alt1, unsigned int dir, const char *name) +{ + int id = 0; + + if (pin >= (MAX_PORTS * PINS_PER_PORT)) + return -EINVAL; + if (gpio_request(pin, name)) { + pr_err("failed to setup lantiq gpio: %s\n", name); + return -EBUSY; + } + if (dir) + gpio_direction_output(pin, 1); + else + gpio_direction_input(pin); + while (pin >= PINS_PER_PORT) { + pin -= PINS_PER_PORT; + id++; + } + if (alt0) + ltq_gpio_setbit(ltq_gpio_port[id].membase, + LTQ_GPIO_ALTSEL0, pin); + else + ltq_gpio_clearbit(ltq_gpio_port[id].membase, + LTQ_GPIO_ALTSEL0, pin); + if (alt1) + ltq_gpio_setbit(ltq_gpio_port[id].membase, + LTQ_GPIO_ALTSEL1, pin); + else + ltq_gpio_clearbit(ltq_gpio_port[id].membase, + LTQ_GPIO_ALTSEL1, pin); + return 0; +} +EXPORT_SYMBOL(ltq_gpio_request); + +static void ltq_gpio_set(struct gpio_chip *chip, unsigned int offset, int value) +{ + struct ltq_gpio *ltq_gpio = container_of(chip, struct ltq_gpio, chip); + + if (value) + ltq_gpio_setbit(ltq_gpio->membase, LTQ_GPIO_OUT, offset); + else + ltq_gpio_clearbit(ltq_gpio->membase, LTQ_GPIO_OUT, offset); +} + +static int ltq_gpio_get(struct gpio_chip *chip, unsigned int offset) +{ + struct ltq_gpio *ltq_gpio = container_of(chip, struct ltq_gpio, chip); + + return ltq_gpio_getbit(ltq_gpio->membase, LTQ_GPIO_IN, offset); +} + +static int ltq_gpio_direction_input(struct gpio_chip *chip, unsigned int offset) +{ + struct ltq_gpio *ltq_gpio = container_of(chip, struct ltq_gpio, chip); + + ltq_gpio_clearbit(ltq_gpio->membase, LTQ_GPIO_OD, offset); + ltq_gpio_clearbit(ltq_gpio->membase, LTQ_GPIO_DIR, offset); + + return 0; +} + +static int ltq_gpio_direction_output(struct gpio_chip *chip, + unsigned int offset, int value) +{ + struct ltq_gpio *ltq_gpio = container_of(chip, struct ltq_gpio, chip); + + ltq_gpio_setbit(ltq_gpio->membase, LTQ_GPIO_OD, offset); + ltq_gpio_setbit(ltq_gpio->membase, LTQ_GPIO_DIR, offset); + ltq_gpio_set(chip, offset, value); + + return 0; +} + +static int ltq_gpio_req(struct gpio_chip *chip, unsigned offset) +{ + struct ltq_gpio *ltq_gpio = container_of(chip, struct ltq_gpio, chip); + + ltq_gpio_clearbit(ltq_gpio->membase, LTQ_GPIO_ALTSEL0, offset); + ltq_gpio_clearbit(ltq_gpio->membase, LTQ_GPIO_ALTSEL1, offset); + return 0; +} + +static int ltq_gpio_probe(struct platform_device *pdev) +{ + struct resource *res; + + if (pdev->id >= MAX_PORTS) { + dev_err(&pdev->dev, "invalid gpio port %d\n", + pdev->id); + return -EINVAL; + } + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(&pdev->dev, "failed to get memory for gpio port %d\n", + pdev->id); + return -ENOENT; + } + res = devm_request_mem_region(&pdev->dev, res->start, + resource_size(res), dev_name(&pdev->dev)); + if (!res) { + dev_err(&pdev->dev, + "failed to request memory for gpio port %d\n", + pdev->id); + return -EBUSY; + } + ltq_gpio_port[pdev->id].membase = devm_ioremap_nocache(&pdev->dev, + res->start, resource_size(res)); + if (!ltq_gpio_port[pdev->id].membase) { + dev_err(&pdev->dev, "failed to remap memory for gpio port %d\n", + pdev->id); + return -ENOMEM; + } + ltq_gpio_port[pdev->id].chip.label = "ltq_gpio"; + ltq_gpio_port[pdev->id].chip.direction_input = ltq_gpio_direction_input; + ltq_gpio_port[pdev->id].chip.direction_output = + ltq_gpio_direction_output; + ltq_gpio_port[pdev->id].chip.get = ltq_gpio_get; + ltq_gpio_port[pdev->id].chip.set = ltq_gpio_set; + ltq_gpio_port[pdev->id].chip.request = ltq_gpio_req; + ltq_gpio_port[pdev->id].chip.base = PINS_PER_PORT * pdev->id; + ltq_gpio_port[pdev->id].chip.ngpio = PINS_PER_PORT; + platform_set_drvdata(pdev, <q_gpio_port[pdev->id]); + return gpiochip_add(<q_gpio_port[pdev->id].chip); +} + +static struct platform_driver +ltq_gpio_driver = { + .probe = ltq_gpio_probe, + .driver = { + .name = "ltq_gpio", + .owner = THIS_MODULE, + }, +}; + +int __init ltq_gpio_init(void) +{ + int ret = platform_driver_register(<q_gpio_driver); + + if (ret) + pr_info("ltq_gpio : Error registering platfom driver!"); + return ret; +} + +postcore_initcall(ltq_gpio_init); diff --git a/arch/mips/lantiq/xway/gpio_ebu.c b/arch/mips/lantiq/xway/gpio_ebu.c new file mode 100644 index 00000000000..a479355abdb --- /dev/null +++ b/arch/mips/lantiq/xway/gpio_ebu.c @@ -0,0 +1,126 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2010 John Crispin <blogic@openwrt.org> + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/types.h> +#include <linux/platform_device.h> +#include <linux/mutex.h> +#include <linux/gpio.h> +#include <linux/io.h> + +#include <lantiq_soc.h> + +/* + * By attaching hardware latches to the EBU it is possible to create output + * only gpios. This driver configures a special memory address, which when + * written to outputs 16 bit to the latches. + */ + +#define LTQ_EBU_BUSCON 0x1e7ff /* 16 bit access, slowest timing */ +#define LTQ_EBU_WP 0x80000000 /* write protect bit */ + +/* we keep a shadow value of the last value written to the ebu */ +static int ltq_ebu_gpio_shadow = 0x0; +static void __iomem *ltq_ebu_gpio_membase; + +static void ltq_ebu_apply(void) +{ + unsigned long flags; + + spin_lock_irqsave(&ebu_lock, flags); + ltq_ebu_w32(LTQ_EBU_BUSCON, LTQ_EBU_BUSCON1); + *((__u16 *)ltq_ebu_gpio_membase) = ltq_ebu_gpio_shadow; + ltq_ebu_w32(LTQ_EBU_BUSCON | LTQ_EBU_WP, LTQ_EBU_BUSCON1); + spin_unlock_irqrestore(&ebu_lock, flags); +} + +static void ltq_ebu_set(struct gpio_chip *chip, unsigned offset, int value) +{ + if (value) + ltq_ebu_gpio_shadow |= (1 << offset); + else + ltq_ebu_gpio_shadow &= ~(1 << offset); + ltq_ebu_apply(); +} + +static int ltq_ebu_direction_output(struct gpio_chip *chip, unsigned offset, + int value) +{ + ltq_ebu_set(chip, offset, value); + + return 0; +} + +static struct gpio_chip ltq_ebu_chip = { + .label = "ltq_ebu", + .direction_output = ltq_ebu_direction_output, + .set = ltq_ebu_set, + .base = 72, + .ngpio = 16, + .can_sleep = 1, + .owner = THIS_MODULE, +}; + +static int ltq_ebu_probe(struct platform_device *pdev) +{ + int ret = 0; + struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + + if (!res) { + dev_err(&pdev->dev, "failed to get memory resource\n"); + return -ENOENT; + } + + res = devm_request_mem_region(&pdev->dev, res->start, + resource_size(res), dev_name(&pdev->dev)); + if (!res) { + dev_err(&pdev->dev, "failed to request memory resource\n"); + return -EBUSY; + } + + ltq_ebu_gpio_membase = devm_ioremap_nocache(&pdev->dev, res->start, + resource_size(res)); + if (!ltq_ebu_gpio_membase) { + dev_err(&pdev->dev, "Failed to ioremap mem region\n"); + return -ENOMEM; + } + + /* grab the default shadow value passed form the platform code */ + ltq_ebu_gpio_shadow = (unsigned int) pdev->dev.platform_data; + + /* tell the ebu controller which memory address we will be using */ + ltq_ebu_w32(pdev->resource->start | 0x1, LTQ_EBU_ADDRSEL1); + + /* write protect the region */ + ltq_ebu_w32(LTQ_EBU_BUSCON | LTQ_EBU_WP, LTQ_EBU_BUSCON1); + + ret = gpiochip_add(<q_ebu_chip); + if (!ret) + ltq_ebu_apply(); + return ret; +} + +static struct platform_driver ltq_ebu_driver = { + .probe = ltq_ebu_probe, + .driver = { + .name = "ltq_ebu", + .owner = THIS_MODULE, + }, +}; + +static int __init ltq_ebu_init(void) +{ + int ret = platform_driver_register(<q_ebu_driver); + + if (ret) + pr_info("ltq_ebu : Error registering platfom driver!"); + return ret; +} + +postcore_initcall(ltq_ebu_init); diff --git a/arch/mips/lantiq/xway/gpio_stp.c b/arch/mips/lantiq/xway/gpio_stp.c new file mode 100644 index 00000000000..67d59d69034 --- /dev/null +++ b/arch/mips/lantiq/xway/gpio_stp.c @@ -0,0 +1,157 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2007 John Crispin <blogic@openwrt.org> + * + */ + +#include <linux/slab.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/types.h> +#include <linux/platform_device.h> +#include <linux/mutex.h> +#include <linux/io.h> +#include <linux/gpio.h> + +#include <lantiq_soc.h> + +#define LTQ_STP_CON0 0x00 +#define LTQ_STP_CON1 0x04 +#define LTQ_STP_CPU0 0x08 +#define LTQ_STP_CPU1 0x0C +#define LTQ_STP_AR 0x10 + +#define LTQ_STP_CON_SWU (1 << 31) +#define LTQ_STP_2HZ 0 +#define LTQ_STP_4HZ (1 << 23) +#define LTQ_STP_8HZ (2 << 23) +#define LTQ_STP_10HZ (3 << 23) +#define LTQ_STP_SPEED_MASK (0xf << 23) +#define LTQ_STP_UPD_FPI (1 << 31) +#define LTQ_STP_UPD_MASK (3 << 30) +#define LTQ_STP_ADSL_SRC (3 << 24) + +#define LTQ_STP_GROUP0 (1 << 0) + +#define LTQ_STP_RISING 0 +#define LTQ_STP_FALLING (1 << 26) +#define LTQ_STP_EDGE_MASK (1 << 26) + +#define ltq_stp_r32(reg) __raw_readl(ltq_stp_membase + reg) +#define ltq_stp_w32(val, reg) __raw_writel(val, ltq_stp_membase + reg) +#define ltq_stp_w32_mask(clear, set, reg) \ + ltq_w32((ltq_r32(ltq_stp_membase + reg) & ~(clear)) | (set), \ + ltq_stp_membase + (reg)) + +static int ltq_stp_shadow = 0xffff; +static void __iomem *ltq_stp_membase; + +static void ltq_stp_set(struct gpio_chip *chip, unsigned offset, int value) +{ + if (value) + ltq_stp_shadow |= (1 << offset); + else + ltq_stp_shadow &= ~(1 << offset); + ltq_stp_w32(ltq_stp_shadow, LTQ_STP_CPU0); +} + +static int ltq_stp_direction_output(struct gpio_chip *chip, unsigned offset, + int value) +{ + ltq_stp_set(chip, offset, value); + + return 0; +} + +static struct gpio_chip ltq_stp_chip = { + .label = "ltq_stp", + .direction_output = ltq_stp_direction_output, + .set = ltq_stp_set, + .base = 48, + .ngpio = 24, + .can_sleep = 1, + .owner = THIS_MODULE, +}; + +static int ltq_stp_hw_init(void) +{ + /* the 3 pins used to control the external stp */ + ltq_gpio_request(4, 1, 0, 1, "stp-st"); + ltq_gpio_request(5, 1, 0, 1, "stp-d"); + ltq_gpio_request(6, 1, 0, 1, "stp-sh"); + + /* sane defaults */ + ltq_stp_w32(0, LTQ_STP_AR); + ltq_stp_w32(0, LTQ_STP_CPU0); + ltq_stp_w32(0, LTQ_STP_CPU1); + ltq_stp_w32(LTQ_STP_CON_SWU, LTQ_STP_CON0); + ltq_stp_w32(0, LTQ_STP_CON1); + + /* rising or falling edge */ + ltq_stp_w32_mask(LTQ_STP_EDGE_MASK, LTQ_STP_FALLING, LTQ_STP_CON0); + + /* per default stp 15-0 are set */ + ltq_stp_w32_mask(0, LTQ_STP_GROUP0, LTQ_STP_CON1); + + /* stp are update periodically by the FPI bus */ + ltq_stp_w32_mask(LTQ_STP_UPD_MASK, LTQ_STP_UPD_FPI, LTQ_STP_CON1); + + /* set stp update speed */ + ltq_stp_w32_mask(LTQ_STP_SPEED_MASK, LTQ_STP_8HZ, LTQ_STP_CON1); + + /* tell the hardware that pin (led) 0 and 1 are controlled + * by the dsl arc + */ + ltq_stp_w32_mask(0, LTQ_STP_ADSL_SRC, LTQ_STP_CON0); + + ltq_pmu_enable(PMU_LED); + return 0; +} + +static int __devinit ltq_stp_probe(struct platform_device *pdev) +{ + struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + int ret = 0; + + if (!res) + return -ENOENT; + res = devm_request_mem_region(&pdev->dev, res->start, + resource_size(res), dev_name(&pdev->dev)); + if (!res) { + dev_err(&pdev->dev, "failed to request STP memory\n"); + return -EBUSY; + } + ltq_stp_membase = devm_ioremap_nocache(&pdev->dev, res->start, + resource_size(res)); + if (!ltq_stp_membase) { + dev_err(&pdev->dev, "failed to remap STP memory\n"); + return -ENOMEM; + } + ret = gpiochip_add(<q_stp_chip); + if (!ret) + ret = ltq_stp_hw_init(); + + return ret; +} + +static struct platform_driver ltq_stp_driver = { + .probe = ltq_stp_probe, + .driver = { + .name = "ltq_stp", + .owner = THIS_MODULE, + }, +}; + +int __init ltq_stp_init(void) +{ + int ret = platform_driver_register(<q_stp_driver); + + if (ret) + pr_info("ltq_stp: error registering platfom driver"); + return ret; +} + +postcore_initcall(ltq_stp_init); diff --git a/arch/mips/lantiq/xway/mach-easy50601.c b/arch/mips/lantiq/xway/mach-easy50601.c new file mode 100644 index 00000000000..d5aaf637ab1 --- /dev/null +++ b/arch/mips/lantiq/xway/mach-easy50601.c @@ -0,0 +1,57 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2010 John Crispin <blogic@openwrt.org> + */ + +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/mtd/physmap.h> +#include <linux/input.h> + +#include <lantiq.h> + +#include "../machtypes.h" +#include "devices.h" + +static struct mtd_partition easy50601_partitions[] = { + { + .name = "uboot", + .offset = 0x0, + .size = 0x10000, + }, + { + .name = "uboot_env", + .offset = 0x10000, + .size = 0x10000, + }, + { + .name = "linux", + .offset = 0x20000, + .size = 0xE0000, + }, + { + .name = "rootfs", + .offset = 0x100000, + .size = 0x300000, + }, +}; + +static struct physmap_flash_data easy50601_flash_data = { + .nr_parts = ARRAY_SIZE(easy50601_partitions), + .parts = easy50601_partitions, +}; + +static void __init easy50601_init(void) +{ + ltq_register_nor(&easy50601_flash_data); +} + +MIPS_MACHINE(LTQ_MACH_EASY50601, + "EASY50601", + "EASY50601 Eval Board", + easy50601_init); diff --git a/arch/mips/lantiq/xway/mach-easy50712.c b/arch/mips/lantiq/xway/mach-easy50712.c new file mode 100644 index 00000000000..ea5027b3239 --- /dev/null +++ b/arch/mips/lantiq/xway/mach-easy50712.c @@ -0,0 +1,74 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2010 John Crispin <blogic@openwrt.org> + */ + +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/mtd/physmap.h> +#include <linux/input.h> +#include <linux/phy.h> + +#include <lantiq_soc.h> +#include <irq.h> + +#include "../machtypes.h" +#include "devices.h" + +static struct mtd_partition easy50712_partitions[] = { + { + .name = "uboot", + .offset = 0x0, + .size = 0x10000, + }, + { + .name = "uboot_env", + .offset = 0x10000, + .size = 0x10000, + }, + { + .name = "linux", + .offset = 0x20000, + .size = 0xe0000, + }, + { + .name = "rootfs", + .offset = 0x100000, + .size = 0x300000, + }, +}; + +static struct physmap_flash_data easy50712_flash_data = { + .nr_parts = ARRAY_SIZE(easy50712_partitions), + .parts = easy50712_partitions, +}; + +static struct ltq_pci_data ltq_pci_data = { + .clock = PCI_CLOCK_INT, + .gpio = PCI_GNT1 | PCI_REQ1, + .irq = { + [14] = INT_NUM_IM0_IRL0 + 22, + }, +}; + +static struct ltq_eth_data ltq_eth_data = { + .mii_mode = PHY_INTERFACE_MODE_MII, +}; + +static void __init easy50712_init(void) +{ + ltq_register_gpio_stp(); + ltq_register_nor(&easy50712_flash_data); + ltq_register_pci(<q_pci_data); + ltq_register_etop(<q_eth_data); +} + +MIPS_MACHINE(LTQ_MACH_EASY50712, + "EASY50712", + "EASY50712 Eval Board", + easy50712_init); diff --git a/arch/mips/lantiq/xway/pmu.c b/arch/mips/lantiq/xway/pmu.c new file mode 100644 index 00000000000..9d69f01e352 --- /dev/null +++ b/arch/mips/lantiq/xway/pmu.c @@ -0,0 +1,70 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2010 John Crispin <blogic@openwrt.org> + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/version.h> +#include <linux/ioport.h> + +#include <lantiq_soc.h> + +/* PMU - the power management unit allows us to turn part of the core + * on and off + */ + +/* the enable / disable registers */ +#define LTQ_PMU_PWDCR 0x1C +#define LTQ_PMU_PWDSR 0x20 + +#define ltq_pmu_w32(x, y) ltq_w32((x), ltq_pmu_membase + (y)) +#define ltq_pmu_r32(x) ltq_r32(ltq_pmu_membase + (x)) + +static struct resource ltq_pmu_resource = { + .name = "pmu", + .start = LTQ_PMU_BASE_ADDR, + .end = LTQ_PMU_BASE_ADDR + LTQ_PMU_SIZE - 1, + .flags = IORESOURCE_MEM, +}; + +static void __iomem *ltq_pmu_membase; + +void ltq_pmu_enable(unsigned int module) +{ + int err = 1000000; + + ltq_pmu_w32(ltq_pmu_r32(LTQ_PMU_PWDCR) & ~module, LTQ_PMU_PWDCR); + do {} while (--err && (ltq_pmu_r32(LTQ_PMU_PWDSR) & module)); + + if (!err) + panic("activating PMU module failed!\n"); +} +EXPORT_SYMBOL(ltq_pmu_enable); + +void ltq_pmu_disable(unsigned int module) +{ + ltq_pmu_w32(ltq_pmu_r32(LTQ_PMU_PWDCR) | module, LTQ_PMU_PWDCR); +} +EXPORT_SYMBOL(ltq_pmu_disable); + +int __init ltq_pmu_init(void) +{ + if (insert_resource(&iomem_resource, <q_pmu_resource) < 0) + panic("Failed to insert pmu memory\n"); + + if (request_mem_region(ltq_pmu_resource.start, + resource_size(<q_pmu_resource), "pmu") < 0) + panic("Failed to request pmu memory\n"); + + ltq_pmu_membase = ioremap_nocache(ltq_pmu_resource.start, + resource_size(<q_pmu_resource)); + if (!ltq_pmu_membase) + panic("Failed to remap pmu memory\n"); + return 0; +} + +core_initcall(ltq_pmu_init); diff --git a/arch/mips/lantiq/xway/prom-ase.c b/arch/mips/lantiq/xway/prom-ase.c new file mode 100644 index 00000000000..abe49f4db57 --- /dev/null +++ b/arch/mips/lantiq/xway/prom-ase.c @@ -0,0 +1,39 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2010 John Crispin <blogic@openwrt.org> + */ + +#include <linux/module.h> +#include <linux/clk.h> +#include <asm/bootinfo.h> +#include <asm/time.h> + +#include <lantiq_soc.h> + +#include "../prom.h" + +#define SOC_AMAZON_SE "Amazon_SE" + +#define PART_SHIFT 12 +#define PART_MASK 0x0FFFFFFF +#define REV_SHIFT 28 +#define REV_MASK 0xF0000000 + +void __init ltq_soc_detect(struct ltq_soc_info *i) +{ + i->partnum = (ltq_r32(LTQ_MPS_CHIPID) & PART_MASK) >> PART_SHIFT; + i->rev = (ltq_r32(LTQ_MPS_CHIPID) & REV_MASK) >> REV_SHIFT; + switch (i->partnum) { + case SOC_ID_AMAZON_SE: + i->name = SOC_AMAZON_SE; + i->type = SOC_TYPE_AMAZON_SE; + break; + + default: + unreachable(); + break; + } +} diff --git a/arch/mips/lantiq/xway/prom-xway.c b/arch/mips/lantiq/xway/prom-xway.c new file mode 100644 index 00000000000..1686692ac24 --- /dev/null +++ b/arch/mips/lantiq/xway/prom-xway.c @@ -0,0 +1,54 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2010 John Crispin <blogic@openwrt.org> + */ + +#include <linux/module.h> +#include <linux/clk.h> +#include <asm/bootinfo.h> +#include <asm/time.h> + +#include <lantiq_soc.h> + +#include "../prom.h" + +#define SOC_DANUBE "Danube" +#define SOC_TWINPASS "Twinpass" +#define SOC_AR9 "AR9" + +#define PART_SHIFT 12 +#define PART_MASK 0x0FFFFFFF +#define REV_SHIFT 28 +#define REV_MASK 0xF0000000 + +void __init ltq_soc_detect(struct ltq_soc_info *i) +{ + i->partnum = (ltq_r32(LTQ_MPS_CHIPID) & PART_MASK) >> PART_SHIFT; + i->rev = (ltq_r32(LTQ_MPS_CHIPID) & REV_MASK) >> REV_SHIFT; + switch (i->partnum) { + case SOC_ID_DANUBE1: + case SOC_ID_DANUBE2: + i->name = SOC_DANUBE; + i->type = SOC_TYPE_DANUBE; + break; + + case SOC_ID_TWINPASS: + i->name = SOC_TWINPASS; + i->type = SOC_TYPE_DANUBE; + break; + + case SOC_ID_ARX188: + case SOC_ID_ARX168: + case SOC_ID_ARX182: + i->name = SOC_AR9; + i->type = SOC_TYPE_AR9; + break; + + default: + unreachable(); + break; + } +} diff --git a/arch/mips/lantiq/xway/reset.c b/arch/mips/lantiq/xway/reset.c new file mode 100644 index 00000000000..a1be36d0e49 --- /dev/null +++ b/arch/mips/lantiq/xway/reset.c @@ -0,0 +1,91 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2010 John Crispin <blogic@openwrt.org> + */ + +#include <linux/init.h> +#include <linux/io.h> +#include <linux/ioport.h> +#include <linux/pm.h> +#include <linux/module.h> +#include <asm/reboot.h> + +#include <lantiq_soc.h> + +#define ltq_rcu_w32(x, y) ltq_w32((x), ltq_rcu_membase + (y)) +#define ltq_rcu_r32(x) ltq_r32(ltq_rcu_membase + (x)) + +/* register definitions */ +#define LTQ_RCU_RST 0x0010 +#define LTQ_RCU_RST_ALL 0x40000000 + +#define LTQ_RCU_RST_STAT 0x0014 +#define LTQ_RCU_STAT_SHIFT 26 + +static struct resource ltq_rcu_resource = { + .name = "rcu", + .start = LTQ_RCU_BASE_ADDR, + .end = LTQ_RCU_BASE_ADDR + LTQ_RCU_SIZE - 1, + .flags = IORESOURCE_MEM, +}; + +/* remapped base addr of the reset control unit */ +static void __iomem *ltq_rcu_membase; + +/* This function is used by the watchdog driver */ +int ltq_reset_cause(void) +{ + u32 val = ltq_rcu_r32(LTQ_RCU_RST_STAT); + return val >> LTQ_RCU_STAT_SHIFT; +} +EXPORT_SYMBOL_GPL(ltq_reset_cause); + +static void ltq_machine_restart(char *command) +{ + pr_notice("System restart\n"); + local_irq_disable(); + ltq_rcu_w32(ltq_rcu_r32(LTQ_RCU_RST) | LTQ_RCU_RST_ALL, LTQ_RCU_RST); + unreachable(); +} + +static void ltq_machine_halt(void) +{ + pr_notice("System halted.\n"); + local_irq_disable(); + unreachable(); +} + +static void ltq_machine_power_off(void) +{ + pr_notice("Please turn off the power now.\n"); + local_irq_disable(); + unreachable(); +} + +static int __init mips_reboot_setup(void) +{ + /* insert and request the memory region */ + if (insert_resource(&iomem_resource, <q_rcu_resource) < 0) + panic("Failed to insert rcu memory\n"); + + if (request_mem_region(ltq_rcu_resource.start, + resource_size(<q_rcu_resource), "rcu") < 0) + panic("Failed to request rcu memory\n"); + + /* remap rcu register range */ + ltq_rcu_membase = ioremap_nocache(ltq_rcu_resource.start, + resource_size(<q_rcu_resource)); + if (!ltq_rcu_membase) + panic("Failed to remap rcu memory\n"); + + _machine_restart = ltq_machine_restart; + _machine_halt = ltq_machine_halt; + pm_power_off = ltq_machine_power_off; + + return 0; +} + +arch_initcall(mips_reboot_setup); diff --git a/arch/mips/lantiq/xway/setup-ase.c b/arch/mips/lantiq/xway/setup-ase.c new file mode 100644 index 00000000000..f6f326798a3 --- /dev/null +++ b/arch/mips/lantiq/xway/setup-ase.c @@ -0,0 +1,19 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2011 John Crispin <blogic@openwrt.org> + */ + +#include <lantiq_soc.h> + +#include "../prom.h" +#include "devices.h" + +void __init ltq_soc_setup(void) +{ + ltq_register_ase_asc(); + ltq_register_gpio(); + ltq_register_wdt(); +} diff --git a/arch/mips/lantiq/xway/setup-xway.c b/arch/mips/lantiq/xway/setup-xway.c new file mode 100644 index 00000000000..c292f643a85 --- /dev/null +++ b/arch/mips/lantiq/xway/setup-xway.c @@ -0,0 +1,20 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2011 John Crispin <blogic@openwrt.org> + */ + +#include <lantiq_soc.h> + +#include "../prom.h" +#include "devices.h" + +void __init ltq_soc_setup(void) +{ + ltq_register_asc(0); + ltq_register_asc(1); + ltq_register_gpio(); + ltq_register_wdt(); +} diff --git a/arch/mips/lib/Makefile b/arch/mips/lib/Makefile index 2adead5a8a3..b2cad4fd5fc 100644 --- a/arch/mips/lib/Makefile +++ b/arch/mips/lib/Makefile @@ -28,6 +28,7 @@ obj-$(CONFIG_CPU_TX39XX) += r3k_dump_tlb.o obj-$(CONFIG_CPU_TX49XX) += dump_tlb.o obj-$(CONFIG_CPU_VR41XX) += dump_tlb.o obj-$(CONFIG_CPU_CAVIUM_OCTEON) += dump_tlb.o +obj-$(CONFIG_CPU_XLR) += dump_tlb.o # libgcc-style stuff needed in the kernel obj-y += ashldi3.o ashrdi3.o cmpdi2.o lshrdi3.o ucmpdi2.o diff --git a/arch/mips/loongson/common/cs5536/cs5536_mfgpt.c b/arch/mips/loongson/common/cs5536/cs5536_mfgpt.c index 8c807c96519..0cb1b9760e3 100644 --- a/arch/mips/loongson/common/cs5536/cs5536_mfgpt.c +++ b/arch/mips/loongson/common/cs5536/cs5536_mfgpt.c @@ -201,8 +201,6 @@ static struct clocksource clocksource_mfgpt = { .rating = 120, /* Functional for real use, but not desired */ .read = mfgpt_read, .mask = CLOCKSOURCE_MASK(32), - .mult = 0, - .shift = 22, }; int __init init_mfgpt_clocksource(void) @@ -210,8 +208,7 @@ int __init init_mfgpt_clocksource(void) if (num_possible_cpus() > 1) /* MFGPT does not scale! */ return 0; - clocksource_mfgpt.mult = clocksource_hz2mult(MFGPT_TICK_RATE, 22); - return clocksource_register(&clocksource_mfgpt); + return clocksource_register_hz(&clocksource_mfgpt, MFGPT_TICK_RATE); } arch_initcall(init_mfgpt_clocksource); diff --git a/arch/mips/loongson/common/env.c b/arch/mips/loongson/common/env.c index 11b193f848f..d93830ad611 100644 --- a/arch/mips/loongson/common/env.c +++ b/arch/mips/loongson/common/env.c @@ -29,9 +29,10 @@ unsigned long memsize, highmemsize; #define parse_even_earlier(res, option, p) \ do { \ - int ret; \ + unsigned int tmp __maybe_unused; \ + \ if (strncmp(option, (char *)p, strlen(option)) == 0) \ - ret = strict_strtol((char *)p + strlen(option"="), 10, &res); \ + tmp = strict_strtol((char *)p + strlen(option"="), 10, &res); \ } while (0) void __init prom_init_env(void) diff --git a/arch/mips/mm/Makefile b/arch/mips/mm/Makefile index d679c772d08..4d8c1623eee 100644 --- a/arch/mips/mm/Makefile +++ b/arch/mips/mm/Makefile @@ -3,7 +3,8 @@ # obj-y += cache.o dma-default.o extable.o fault.o \ - init.o tlbex.o tlbex-fault.o uasm.o page.o + init.o mmap.o tlbex.o tlbex-fault.o uasm.o \ + page.o obj-$(CONFIG_32BIT) += ioremap.o pgtable-32.o obj-$(CONFIG_64BIT) += pgtable-64.o @@ -29,6 +30,7 @@ obj-$(CONFIG_CPU_TX39XX) += c-tx39.o tlb-r3k.o obj-$(CONFIG_CPU_TX49XX) += c-r4k.o cex-gen.o tlb-r4k.o obj-$(CONFIG_CPU_VR41XX) += c-r4k.o cex-gen.o tlb-r4k.o obj-$(CONFIG_CPU_CAVIUM_OCTEON) += c-octeon.o cex-oct.o tlb-r4k.o +obj-$(CONFIG_CPU_XLR) += c-r4k.o tlb-r4k.o cex-gen.o obj-$(CONFIG_IP22_CPU_SCACHE) += sc-ip22.o obj-$(CONFIG_R5000_CPU_SCACHE) += sc-r5k.o diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c index b4923a75cb4..d9bc5d3593b 100644 --- a/arch/mips/mm/c-r4k.c +++ b/arch/mips/mm/c-r4k.c @@ -1006,6 +1006,7 @@ static void __cpuinit probe_pcache(void) case CPU_25KF: case CPU_SB1: case CPU_SB1A: + case CPU_XLR: c->dcache.flags |= MIPS_CACHE_PINDEX; break; @@ -1075,7 +1076,6 @@ static int __cpuinit probe_scache(void) unsigned long flags, addr, begin, end, pow2; unsigned int config = read_c0_config(); struct cpuinfo_mips *c = ¤t_cpu_data; - int tmp; if (config & CONF_SC) return 0; @@ -1108,7 +1108,6 @@ static int __cpuinit probe_scache(void) /* Now search for the wrap around point. */ pow2 = (128 * 1024); - tmp = 0; for (addr = begin + (128 * 1024); addr < end; addr = begin + pow2) { cache_op(Index_Load_Tag_SD, addr); __asm__ __volatile__("nop; nop; nop; nop;"); /* hazard... */ diff --git a/arch/mips/mm/mmap.c b/arch/mips/mm/mmap.c new file mode 100644 index 00000000000..ae3c20a9556 --- /dev/null +++ b/arch/mips/mm/mmap.c @@ -0,0 +1,122 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 2011 Wind River Systems, + * written by Ralf Baechle <ralf@linux-mips.org> + */ +#include <linux/errno.h> +#include <linux/mm.h> +#include <linux/mman.h> +#include <linux/module.h> +#include <linux/random.h> +#include <linux/sched.h> + +unsigned long shm_align_mask = PAGE_SIZE - 1; /* Sane caches */ + +EXPORT_SYMBOL(shm_align_mask); + +#define COLOUR_ALIGN(addr,pgoff) \ + ((((addr) + shm_align_mask) & ~shm_align_mask) + \ + (((pgoff) << PAGE_SHIFT) & shm_align_mask)) + +unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, + unsigned long len, unsigned long pgoff, unsigned long flags) +{ + struct vm_area_struct * vmm; + int do_color_align; + + if (len > TASK_SIZE) + return -ENOMEM; + + if (flags & MAP_FIXED) { + /* Even MAP_FIXED mappings must reside within TASK_SIZE. */ + if (TASK_SIZE - len < addr) + return -EINVAL; + + /* + * We do not accept a shared mapping if it would violate + * cache aliasing constraints. + */ + if ((flags & MAP_SHARED) && + ((addr - (pgoff << PAGE_SHIFT)) & shm_align_mask)) + return -EINVAL; + return addr; + } + + do_color_align = 0; + if (filp || (flags & MAP_SHARED)) + do_color_align = 1; + if (addr) { + if (do_color_align) + addr = COLOUR_ALIGN(addr, pgoff); + else + addr = PAGE_ALIGN(addr); + vmm = find_vma(current->mm, addr); + if (TASK_SIZE - len >= addr && + (!vmm || addr + len <= vmm->vm_start)) + return addr; + } + addr = current->mm->mmap_base; + if (do_color_align) + addr = COLOUR_ALIGN(addr, pgoff); + else + addr = PAGE_ALIGN(addr); + + for (vmm = find_vma(current->mm, addr); ; vmm = vmm->vm_next) { + /* At this point: (!vmm || addr < vmm->vm_end). */ + if (TASK_SIZE - len < addr) + return -ENOMEM; + if (!vmm || addr + len <= vmm->vm_start) + return addr; + addr = vmm->vm_end; + if (do_color_align) + addr = COLOUR_ALIGN(addr, pgoff); + } +} + +void arch_pick_mmap_layout(struct mm_struct *mm) +{ + unsigned long random_factor = 0UL; + + if (current->flags & PF_RANDOMIZE) { + random_factor = get_random_int(); + random_factor = random_factor << PAGE_SHIFT; + if (TASK_IS_32BIT_ADDR) + random_factor &= 0xfffffful; + else + random_factor &= 0xffffffful; + } + + mm->mmap_base = TASK_UNMAPPED_BASE + random_factor; + mm->get_unmapped_area = arch_get_unmapped_area; + mm->unmap_area = arch_unmap_area; +} + +static inline unsigned long brk_rnd(void) +{ + unsigned long rnd = get_random_int(); + + rnd = rnd << PAGE_SHIFT; + /* 8MB for 32bit, 256MB for 64bit */ + if (TASK_IS_32BIT_ADDR) + rnd = rnd & 0x7ffffful; + else + rnd = rnd & 0xffffffful; + + return rnd; +} + +unsigned long arch_randomize_brk(struct mm_struct *mm) +{ + unsigned long base = mm->brk; + unsigned long ret; + + ret = PAGE_ALIGN(base + brk_rnd()); + + if (ret < mm->brk) + return mm->brk; + + return ret; +} diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c index 5ef294fbb6e..424ed4b92e6 100644 --- a/arch/mips/mm/tlbex.c +++ b/arch/mips/mm/tlbex.c @@ -404,6 +404,7 @@ static void __cpuinit build_tlb_write_entry(u32 **p, struct uasm_label **l, case CPU_5KC: case CPU_TX49XX: case CPU_PR4450: + case CPU_XLR: uasm_i_nop(p); tlbw(p); break; @@ -1151,8 +1152,8 @@ static void __cpuinit build_r4000_tlb_refill_handler(void) struct uasm_reloc *r = relocs; u32 *f; unsigned int final_len; - struct mips_huge_tlb_info htlb_info; - enum vmalloc64_mode vmalloc_mode; + struct mips_huge_tlb_info htlb_info __maybe_unused; + enum vmalloc64_mode vmalloc_mode __maybe_unused; memset(tlb_handler, 0, sizeof(tlb_handler)); memset(labels, 0, sizeof(labels)); diff --git a/arch/mips/mti-malta/malta-init.c b/arch/mips/mti-malta/malta-init.c index 414f0c99b19..31180c321a1 100644 --- a/arch/mips/mti-malta/malta-init.c +++ b/arch/mips/mti-malta/malta-init.c @@ -193,8 +193,6 @@ extern struct plat_smp_ops msmtc_smp_ops; void __init prom_init(void) { - int result; - prom_argc = fw_arg0; _prom_argv = (int *) fw_arg1; _prom_envp = (int *) fw_arg2; @@ -360,20 +358,14 @@ void __init prom_init(void) #ifdef CONFIG_SERIAL_8250_CONSOLE console_config(); #endif - /* Early detection of CMP support */ - result = gcmp_probe(GCMP_BASE_ADDR, GCMP_ADDRSPACE_SZ); - #ifdef CONFIG_MIPS_CMP - if (result) + /* Early detection of CMP support */ + if (gcmp_probe(GCMP_BASE_ADDR, GCMP_ADDRSPACE_SZ)) register_smp_ops(&cmp_smp_ops); + else #endif #ifdef CONFIG_MIPS_MT_SMP -#ifdef CONFIG_MIPS_CMP - if (!result) register_smp_ops(&vsmp_smp_ops); -#else - register_smp_ops(&vsmp_smp_ops); -#endif #endif #ifdef CONFIG_MIPS_MT_SMTC register_smp_ops(&msmtc_smp_ops); diff --git a/arch/mips/mti-malta/malta-int.c b/arch/mips/mti-malta/malta-int.c index 9027061f0ea..1d36c511a7a 100644 --- a/arch/mips/mti-malta/malta-int.c +++ b/arch/mips/mti-malta/malta-int.c @@ -56,7 +56,6 @@ static DEFINE_RAW_SPINLOCK(mips_irq_lock); static inline int mips_pcibios_iack(void) { int irq; - u32 dummy; /* * Determine highest priority pending interrupt by performing @@ -83,7 +82,7 @@ static inline int mips_pcibios_iack(void) BONITO_PCIMAP_CFG = 0x20000; /* Flush Bonito register block */ - dummy = BONITO_PCIMAP_CFG; + (void) BONITO_PCIMAP_CFG; iob(); /* sync */ irq = __raw_readl((u32 *)_pcictrl_bonito_pcicfg); @@ -309,6 +308,8 @@ static void ipi_call_dispatch(void) static irqreturn_t ipi_resched_interrupt(int irq, void *dev_id) { + scheduler_ipi(); + return IRQ_HANDLED; } diff --git a/arch/mips/netlogic/Kconfig b/arch/mips/netlogic/Kconfig new file mode 100644 index 00000000000..a5ca743613f --- /dev/null +++ b/arch/mips/netlogic/Kconfig @@ -0,0 +1,5 @@ +config NLM_COMMON + bool + +config NLM_XLR + bool diff --git a/arch/mips/netlogic/xlr/Makefile b/arch/mips/netlogic/xlr/Makefile new file mode 100644 index 00000000000..9bd3f731f62 --- /dev/null +++ b/arch/mips/netlogic/xlr/Makefile @@ -0,0 +1,5 @@ +obj-y += setup.o platform.o irq.o setup.o time.o +obj-$(CONFIG_SMP) += smp.o smpboot.o +obj-$(CONFIG_EARLY_PRINTK) += xlr_console.o + +EXTRA_CFLAGS += -Werror diff --git a/arch/mips/netlogic/xlr/irq.c b/arch/mips/netlogic/xlr/irq.c new file mode 100644 index 00000000000..1446d58e364 --- /dev/null +++ b/arch/mips/netlogic/xlr/irq.c @@ -0,0 +1,300 @@ +/* + * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights + * reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the NetLogic + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/linkage.h> +#include <linux/interrupt.h> +#include <linux/spinlock.h> +#include <linux/mm.h> + +#include <asm/mipsregs.h> + +#include <asm/netlogic/xlr/iomap.h> +#include <asm/netlogic/xlr/pic.h> +#include <asm/netlogic/xlr/xlr.h> + +#include <asm/netlogic/interrupt.h> +#include <asm/netlogic/mips-extns.h> + +static u64 nlm_irq_mask; +static DEFINE_SPINLOCK(nlm_pic_lock); + +static void xlr_pic_enable(struct irq_data *d) +{ + nlm_reg_t *mmio = netlogic_io_mmio(NETLOGIC_IO_PIC_OFFSET); + unsigned long flags; + nlm_reg_t reg; + int irq = d->irq; + + WARN(!PIC_IRQ_IS_IRT(irq), "Bad irq %d", irq); + + spin_lock_irqsave(&nlm_pic_lock, flags); + reg = netlogic_read_reg(mmio, PIC_IRT_1_BASE + irq - PIC_IRQ_BASE); + netlogic_write_reg(mmio, PIC_IRT_1_BASE + irq - PIC_IRQ_BASE, + reg | (1 << 6) | (1 << 30) | (1 << 31)); + spin_unlock_irqrestore(&nlm_pic_lock, flags); +} + +static void xlr_pic_mask(struct irq_data *d) +{ + nlm_reg_t *mmio = netlogic_io_mmio(NETLOGIC_IO_PIC_OFFSET); + unsigned long flags; + nlm_reg_t reg; + int irq = d->irq; + + WARN(!PIC_IRQ_IS_IRT(irq), "Bad irq %d", irq); + + spin_lock_irqsave(&nlm_pic_lock, flags); + reg = netlogic_read_reg(mmio, PIC_IRT_1_BASE + irq - PIC_IRQ_BASE); + netlogic_write_reg(mmio, PIC_IRT_1_BASE + irq - PIC_IRQ_BASE, + reg | (1 << 6) | (1 << 30) | (0 << 31)); + spin_unlock_irqrestore(&nlm_pic_lock, flags); +} + +#ifdef CONFIG_PCI +/* Extra ACK needed for XLR on chip PCI controller */ +static void xlr_pci_ack(struct irq_data *d) +{ + nlm_reg_t *pci_mmio = netlogic_io_mmio(NETLOGIC_IO_PCIX_OFFSET); + + netlogic_read_reg(pci_mmio, (0x140 >> 2)); +} + +/* Extra ACK needed for XLS on chip PCIe controller */ +static void xls_pcie_ack(struct irq_data *d) +{ + nlm_reg_t *pcie_mmio_le = netlogic_io_mmio(NETLOGIC_IO_PCIE_1_OFFSET); + + switch (d->irq) { + case PIC_PCIE_LINK0_IRQ: + netlogic_write_reg(pcie_mmio_le, (0x90 >> 2), 0xffffffff); + break; + case PIC_PCIE_LINK1_IRQ: + netlogic_write_reg(pcie_mmio_le, (0x94 >> 2), 0xffffffff); + break; + case PIC_PCIE_LINK2_IRQ: + netlogic_write_reg(pcie_mmio_le, (0x190 >> 2), 0xffffffff); + break; + case PIC_PCIE_LINK3_IRQ: + netlogic_write_reg(pcie_mmio_le, (0x194 >> 2), 0xffffffff); + break; + } +} + +/* For XLS B silicon, the 3,4 PCI interrupts are different */ +static void xls_pcie_ack_b(struct irq_data *d) +{ + nlm_reg_t *pcie_mmio_le = netlogic_io_mmio(NETLOGIC_IO_PCIE_1_OFFSET); + + switch (d->irq) { + case PIC_PCIE_LINK0_IRQ: + netlogic_write_reg(pcie_mmio_le, (0x90 >> 2), 0xffffffff); + break; + case PIC_PCIE_LINK1_IRQ: + netlogic_write_reg(pcie_mmio_le, (0x94 >> 2), 0xffffffff); + break; + case PIC_PCIE_XLSB0_LINK2_IRQ: + netlogic_write_reg(pcie_mmio_le, (0x190 >> 2), 0xffffffff); + break; + case PIC_PCIE_XLSB0_LINK3_IRQ: + netlogic_write_reg(pcie_mmio_le, (0x194 >> 2), 0xffffffff); + break; + } +} +#endif + +static void xlr_pic_ack(struct irq_data *d) +{ + unsigned long flags; + nlm_reg_t *mmio; + int irq = d->irq; + void *hd = irq_data_get_irq_handler_data(d); + + WARN(!PIC_IRQ_IS_IRT(irq), "Bad irq %d", irq); + + if (hd) { + void (*extra_ack)(void *) = hd; + extra_ack(d); + } + mmio = netlogic_io_mmio(NETLOGIC_IO_PIC_OFFSET); + spin_lock_irqsave(&nlm_pic_lock, flags); + netlogic_write_reg(mmio, PIC_INT_ACK, (1 << (irq - PIC_IRQ_BASE))); + spin_unlock_irqrestore(&nlm_pic_lock, flags); +} + +/* + * This chip definition handles interrupts routed thru the XLR + * hardware PIC, currently IRQs 8-39 are mapped to hardware intr + * 0-31 wired the XLR PIC + */ +static struct irq_chip xlr_pic = { + .name = "XLR-PIC", + .irq_enable = xlr_pic_enable, + .irq_mask = xlr_pic_mask, + .irq_ack = xlr_pic_ack, +}; + +static void rsvd_irq_handler(struct irq_data *d) +{ + WARN(d->irq >= PIC_IRQ_BASE, "Bad irq %d", d->irq); +} + +/* + * Chip definition for CPU originated interrupts(timer, msg) and + * IPIs + */ +struct irq_chip nlm_cpu_intr = { + .name = "XLR-CPU-INTR", + .irq_enable = rsvd_irq_handler, + .irq_mask = rsvd_irq_handler, + .irq_ack = rsvd_irq_handler, +}; + +void __init init_xlr_irqs(void) +{ + nlm_reg_t *mmio = netlogic_io_mmio(NETLOGIC_IO_PIC_OFFSET); + uint32_t thread_mask = 1; + int level, i; + + pr_info("Interrupt thread mask [%x]\n", thread_mask); + for (i = 0; i < PIC_NUM_IRTS; i++) { + level = PIC_IRQ_IS_EDGE_TRIGGERED(i); + + /* Bind all PIC irqs to boot cpu */ + netlogic_write_reg(mmio, PIC_IRT_0_BASE + i, thread_mask); + + /* + * Use local scheduling and high polarity for all IRTs + * Invalidate all IRTs, by default + */ + netlogic_write_reg(mmio, PIC_IRT_1_BASE + i, + (level << 30) | (1 << 6) | (PIC_IRQ_BASE + i)); + } + + /* Make all IRQs as level triggered by default */ + for (i = 0; i < NR_IRQS; i++) { + if (PIC_IRQ_IS_IRT(i)) + irq_set_chip_and_handler(i, &xlr_pic, handle_level_irq); + else + irq_set_chip_and_handler(i, &nlm_cpu_intr, + handle_level_irq); + } +#ifdef CONFIG_SMP + irq_set_chip_and_handler(IRQ_IPI_SMP_FUNCTION, &nlm_cpu_intr, + nlm_smp_function_ipi_handler); + irq_set_chip_and_handler(IRQ_IPI_SMP_RESCHEDULE, &nlm_cpu_intr, + nlm_smp_resched_ipi_handler); + nlm_irq_mask |= + ((1ULL << IRQ_IPI_SMP_FUNCTION) | (1ULL << IRQ_IPI_SMP_RESCHEDULE)); +#endif + +#ifdef CONFIG_PCI + /* + * For PCI interrupts, we need to ack the PIC controller too, overload + * irq handler data to do this + */ + if (nlm_chip_is_xls()) { + if (nlm_chip_is_xls_b()) { + irq_set_handler_data(PIC_PCIE_LINK0_IRQ, + xls_pcie_ack_b); + irq_set_handler_data(PIC_PCIE_LINK1_IRQ, + xls_pcie_ack_b); + irq_set_handler_data(PIC_PCIE_XLSB0_LINK2_IRQ, + xls_pcie_ack_b); + irq_set_handler_data(PIC_PCIE_XLSB0_LINK3_IRQ, + xls_pcie_ack_b); + } else { + irq_set_handler_data(PIC_PCIE_LINK0_IRQ, xls_pcie_ack); + irq_set_handler_data(PIC_PCIE_LINK1_IRQ, xls_pcie_ack); + irq_set_handler_data(PIC_PCIE_LINK2_IRQ, xls_pcie_ack); + irq_set_handler_data(PIC_PCIE_LINK3_IRQ, xls_pcie_ack); + } + } else { + /* XLR PCI controller ACK */ + irq_set_handler_data(PIC_PCIE_XLSB0_LINK3_IRQ, xlr_pci_ack); + } +#endif + /* unmask all PIC related interrupts. If no handler is installed by the + * drivers, it'll just ack the interrupt and return + */ + for (i = PIC_IRT_FIRST_IRQ; i <= PIC_IRT_LAST_IRQ; i++) + nlm_irq_mask |= (1ULL << i); + + nlm_irq_mask |= (1ULL << IRQ_TIMER); +} + +void __init arch_init_irq(void) +{ + /* Initialize the irq descriptors */ + init_xlr_irqs(); + write_c0_eimr(nlm_irq_mask); +} + +void __cpuinit nlm_smp_irq_init(void) +{ + /* set interrupt mask for non-zero cpus */ + write_c0_eimr(nlm_irq_mask); +} + +asmlinkage void plat_irq_dispatch(void) +{ + uint64_t eirr; + int i; + + eirr = read_c0_eirr() & read_c0_eimr(); + if (!eirr) + return; + + /* no need of EIRR here, writing compare clears interrupt */ + if (eirr & (1 << IRQ_TIMER)) { + do_IRQ(IRQ_TIMER); + return; + } + + /* use dcltz: optimize below code */ + for (i = 63; i != -1; i--) { + if (eirr & (1ULL << i)) + break; + } + if (i == -1) { + pr_err("no interrupt !!\n"); + return; + } + + /* Ack eirr */ + write_c0_eirr(1ULL << i); + + do_IRQ(i); +} diff --git a/arch/mips/netlogic/xlr/platform.c b/arch/mips/netlogic/xlr/platform.c new file mode 100644 index 00000000000..609ec253464 --- /dev/null +++ b/arch/mips/netlogic/xlr/platform.c @@ -0,0 +1,98 @@ +/* + * Copyright 2011, Netlogic Microsystems. + * Copyright 2004, Matt Porter <mporter@kernel.crashing.org> + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include <linux/device.h> +#include <linux/platform_device.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/resource.h> +#include <linux/serial_8250.h> +#include <linux/serial_reg.h> + +#include <asm/netlogic/xlr/iomap.h> +#include <asm/netlogic/xlr/pic.h> +#include <asm/netlogic/xlr/xlr.h> + +unsigned int nlm_xlr_uart_in(struct uart_port *p, int offset) +{ + nlm_reg_t *mmio; + unsigned int value; + + /* XLR uart does not need any mapping of regs */ + mmio = (nlm_reg_t *)(p->membase + (offset << p->regshift)); + value = netlogic_read_reg(mmio, 0); + + /* See XLR/XLS errata */ + if (offset == UART_MSR) + value ^= 0xF0; + else if (offset == UART_MCR) + value ^= 0x3; + + return value; +} + +void nlm_xlr_uart_out(struct uart_port *p, int offset, int value) +{ + nlm_reg_t *mmio; + + /* XLR uart does not need any mapping of regs */ + mmio = (nlm_reg_t *)(p->membase + (offset << p->regshift)); + + /* See XLR/XLS errata */ + if (offset == UART_MSR) + value ^= 0xF0; + else if (offset == UART_MCR) + value ^= 0x3; + + netlogic_write_reg(mmio, 0, value); +} + +#define PORT(_irq) \ + { \ + .irq = _irq, \ + .regshift = 2, \ + .iotype = UPIO_MEM32, \ + .flags = (UPF_SKIP_TEST | \ + UPF_FIXED_TYPE | UPF_BOOT_AUTOCONF),\ + .uartclk = PIC_CLKS_PER_SEC, \ + .type = PORT_16550A, \ + .serial_in = nlm_xlr_uart_in, \ + .serial_out = nlm_xlr_uart_out, \ + } + +static struct plat_serial8250_port xlr_uart_data[] = { + PORT(PIC_UART_0_IRQ), + PORT(PIC_UART_1_IRQ), + {}, +}; + +static struct platform_device uart_device = { + .name = "serial8250", + .id = PLAT8250_DEV_PLATFORM, + .dev = { + .platform_data = xlr_uart_data, + }, +}; + +static int __init nlm_uart_init(void) +{ + nlm_reg_t *mmio; + + mmio = netlogic_io_mmio(NETLOGIC_IO_UART_0_OFFSET); + xlr_uart_data[0].membase = (void __iomem *)mmio; + xlr_uart_data[0].mapbase = CPHYSADDR((unsigned long)mmio); + + mmio = netlogic_io_mmio(NETLOGIC_IO_UART_1_OFFSET); + xlr_uart_data[1].membase = (void __iomem *)mmio; + xlr_uart_data[1].mapbase = CPHYSADDR((unsigned long)mmio); + + return platform_device_register(&uart_device); +} + +arch_initcall(nlm_uart_init); diff --git a/arch/mips/netlogic/xlr/setup.c b/arch/mips/netlogic/xlr/setup.c new file mode 100644 index 00000000000..482802569e7 --- /dev/null +++ b/arch/mips/netlogic/xlr/setup.c @@ -0,0 +1,188 @@ +/* + * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights + * reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the NetLogic + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <linux/kernel.h> +#include <linux/serial_8250.h> +#include <linux/pm.h> + +#include <asm/reboot.h> +#include <asm/time.h> +#include <asm/bootinfo.h> +#include <asm/smp-ops.h> + +#include <asm/netlogic/interrupt.h> +#include <asm/netlogic/psb-bootinfo.h> + +#include <asm/netlogic/xlr/xlr.h> +#include <asm/netlogic/xlr/iomap.h> +#include <asm/netlogic/xlr/pic.h> +#include <asm/netlogic/xlr/gpio.h> + +unsigned long netlogic_io_base = (unsigned long)(DEFAULT_NETLOGIC_IO_BASE); +unsigned long nlm_common_ebase = 0x0; +struct psb_info nlm_prom_info; + +static void nlm_early_serial_setup(void) +{ + struct uart_port s; + nlm_reg_t *uart_base; + + uart_base = netlogic_io_mmio(NETLOGIC_IO_UART_0_OFFSET); + memset(&s, 0, sizeof(s)); + s.flags = ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST; + s.iotype = UPIO_MEM32; + s.regshift = 2; + s.irq = PIC_UART_0_IRQ; + s.uartclk = PIC_CLKS_PER_SEC; + s.serial_in = nlm_xlr_uart_in; + s.serial_out = nlm_xlr_uart_out; + s.mapbase = (unsigned long)uart_base; + s.membase = (unsigned char __iomem *)uart_base; + early_serial_setup(&s); +} + +static void nlm_linux_exit(void) +{ + nlm_reg_t *mmio; + + mmio = netlogic_io_mmio(NETLOGIC_IO_GPIO_OFFSET); + /* trigger a chip reset by writing 1 to GPIO_SWRESET_REG */ + netlogic_write_reg(mmio, NETLOGIC_GPIO_SWRESET_REG, 1); + for ( ; ; ) + cpu_wait(); +} + +void __init plat_mem_setup(void) +{ + panic_timeout = 5; + _machine_restart = (void (*)(char *))nlm_linux_exit; + _machine_halt = nlm_linux_exit; + pm_power_off = nlm_linux_exit; +} + +const char *get_system_type(void) +{ + return "Netlogic XLR/XLS Series"; +} + +void __init prom_free_prom_memory(void) +{ + /* Nothing yet */ +} + +static void build_arcs_cmdline(int *argv) +{ + int i, remain, len; + char *arg; + + remain = sizeof(arcs_cmdline) - 1; + arcs_cmdline[0] = '\0'; + for (i = 0; argv[i] != 0; i++) { + arg = (char *)(long)argv[i]; + len = strlen(arg); + if (len + 1 > remain) + break; + strcat(arcs_cmdline, arg); + strcat(arcs_cmdline, " "); + remain -= len + 1; + } + + /* Add the default options here */ + if ((strstr(arcs_cmdline, "console=")) == NULL) { + arg = "console=ttyS0,38400 "; + len = strlen(arg); + if (len > remain) + goto fail; + strcat(arcs_cmdline, arg); + remain -= len; + } +#ifdef CONFIG_BLK_DEV_INITRD + if ((strstr(arcs_cmdline, "rdinit=")) == NULL) { + arg = "rdinit=/sbin/init "; + len = strlen(arg); + if (len > remain) + goto fail; + strcat(arcs_cmdline, arg); + remain -= len; + } +#endif + return; +fail: + panic("Cannot add %s, command line too big!", arg); +} + +static void prom_add_memory(void) +{ + struct nlm_boot_mem_map *bootm; + u64 start, size; + u64 pref_backup = 512; /* avoid pref walking beyond end */ + int i; + + bootm = (void *)(long)nlm_prom_info.psb_mem_map; + for (i = 0; i < bootm->nr_map; i++) { + if (bootm->map[i].type != BOOT_MEM_RAM) + continue; + start = bootm->map[i].addr; + size = bootm->map[i].size; + + /* Work around for using bootloader mem */ + if (i == 0 && start == 0 && size == 0x0c000000) + size = 0x0ff00000; + + add_memory_region(start, size - pref_backup, BOOT_MEM_RAM); + } +} + +void __init prom_init(void) +{ + int *argv, *envp; /* passed as 32 bit ptrs */ + struct psb_info *prom_infop; + + /* truncate to 32 bit and sign extend all args */ + argv = (int *)(long)(int)fw_arg1; + envp = (int *)(long)(int)fw_arg2; + prom_infop = (struct psb_info *)(long)(int)fw_arg3; + + nlm_prom_info = *prom_infop; + + nlm_early_serial_setup(); + build_arcs_cmdline(argv); + nlm_common_ebase = read_c0_ebase() & (~((1 << 12) - 1)); + prom_add_memory(); + +#ifdef CONFIG_SMP + nlm_wakeup_secondary_cpus(nlm_prom_info.online_cpu_map); + register_smp_ops(&nlm_smp_ops); +#endif +} diff --git a/arch/mips/netlogic/xlr/smp.c b/arch/mips/netlogic/xlr/smp.c new file mode 100644 index 00000000000..b495a7f1433 --- /dev/null +++ b/arch/mips/netlogic/xlr/smp.c @@ -0,0 +1,225 @@ +/* + * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights + * reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the NetLogic + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <linux/kernel.h> +#include <linux/delay.h> +#include <linux/init.h> +#include <linux/smp.h> +#include <linux/irq.h> + +#include <asm/mmu_context.h> + +#include <asm/netlogic/interrupt.h> +#include <asm/netlogic/mips-extns.h> + +#include <asm/netlogic/xlr/iomap.h> +#include <asm/netlogic/xlr/pic.h> +#include <asm/netlogic/xlr/xlr.h> + +void core_send_ipi(int logical_cpu, unsigned int action) +{ + int cpu = cpu_logical_map(logical_cpu); + u32 tid = cpu & 0x3; + u32 pid = (cpu >> 2) & 0x07; + u32 ipi = (tid << 16) | (pid << 20); + + if (action & SMP_CALL_FUNCTION) + ipi |= IRQ_IPI_SMP_FUNCTION; + else if (action & SMP_RESCHEDULE_YOURSELF) + ipi |= IRQ_IPI_SMP_RESCHEDULE; + else + return; + + pic_send_ipi(ipi); +} + +void nlm_send_ipi_single(int cpu, unsigned int action) +{ + core_send_ipi(cpu, action); +} + +void nlm_send_ipi_mask(const struct cpumask *mask, unsigned int action) +{ + int cpu; + + for_each_cpu(cpu, mask) { + core_send_ipi(cpu, action); + } +} + +/* IRQ_IPI_SMP_FUNCTION Handler */ +void nlm_smp_function_ipi_handler(unsigned int irq, struct irq_desc *desc) +{ + smp_call_function_interrupt(); +} + +/* IRQ_IPI_SMP_RESCHEDULE handler */ +void nlm_smp_resched_ipi_handler(unsigned int irq, struct irq_desc *desc) +{ + set_need_resched(); +} + +void nlm_common_ipi_handler(int irq, struct pt_regs *regs) +{ + if (irq == IRQ_IPI_SMP_FUNCTION) { + smp_call_function_interrupt(); + } else { + /* Announce that we are for reschduling */ + set_need_resched(); + } +} + +/* + * Called before going into mips code, early cpu init + */ +void nlm_early_init_secondary(void) +{ + write_c0_ebase((uint32_t)nlm_common_ebase); + /* TLB partition here later */ +} + +/* + * Code to run on secondary just after probing the CPU + */ +static void __cpuinit nlm_init_secondary(void) +{ + nlm_smp_irq_init(); +} + +void nlm_smp_finish(void) +{ +#ifdef notyet + nlm_common_msgring_cpu_init(); +#endif +} + +void nlm_cpus_done(void) +{ +} + +/* + * Boot all other cpus in the system, initialize them, and bring them into + * the boot function + */ +int nlm_cpu_unblock[NR_CPUS]; +int nlm_cpu_ready[NR_CPUS]; +unsigned long nlm_next_gp; +unsigned long nlm_next_sp; +cpumask_t phys_cpu_present_map; + +void nlm_boot_secondary(int logical_cpu, struct task_struct *idle) +{ + unsigned long gp = (unsigned long)task_thread_info(idle); + unsigned long sp = (unsigned long)__KSTK_TOS(idle); + int cpu = cpu_logical_map(logical_cpu); + + nlm_next_sp = sp; + nlm_next_gp = gp; + + /* barrier */ + __sync(); + nlm_cpu_unblock[cpu] = 1; +} + +void __init nlm_smp_setup(void) +{ + unsigned int boot_cpu; + int num_cpus, i; + + boot_cpu = hard_smp_processor_id(); + cpus_clear(phys_cpu_present_map); + + cpu_set(boot_cpu, phys_cpu_present_map); + __cpu_number_map[boot_cpu] = 0; + __cpu_logical_map[0] = boot_cpu; + cpu_set(0, cpu_possible_map); + + num_cpus = 1; + for (i = 0; i < NR_CPUS; i++) { + if (nlm_cpu_ready[i]) { + cpu_set(i, phys_cpu_present_map); + __cpu_number_map[i] = num_cpus; + __cpu_logical_map[num_cpus] = i; + cpu_set(num_cpus, cpu_possible_map); + ++num_cpus; + } + } + + pr_info("Phys CPU present map: %lx, possible map %lx\n", + (unsigned long)phys_cpu_present_map.bits[0], + (unsigned long)cpu_possible_map.bits[0]); + + pr_info("Detected %i Slave CPU(s)\n", num_cpus); +} + +void nlm_prepare_cpus(unsigned int max_cpus) +{ +} + +struct plat_smp_ops nlm_smp_ops = { + .send_ipi_single = nlm_send_ipi_single, + .send_ipi_mask = nlm_send_ipi_mask, + .init_secondary = nlm_init_secondary, + .smp_finish = nlm_smp_finish, + .cpus_done = nlm_cpus_done, + .boot_secondary = nlm_boot_secondary, + .smp_setup = nlm_smp_setup, + .prepare_cpus = nlm_prepare_cpus, +}; + +unsigned long secondary_entry_point; + +int nlm_wakeup_secondary_cpus(u32 wakeup_mask) +{ + unsigned int tid, pid, ipi, i, boot_cpu; + void *reset_vec; + + secondary_entry_point = (unsigned long)prom_pre_boot_secondary_cpus; + reset_vec = (void *)CKSEG1ADDR(0x1fc00000); + memcpy(reset_vec, nlm_boot_smp_nmi, 0x80); + boot_cpu = hard_smp_processor_id(); + + for (i = 0; i < NR_CPUS; i++) { + if (i == boot_cpu) + continue; + if (wakeup_mask & (1u << i)) { + tid = i & 0x3; + pid = (i >> 2) & 0x7; + ipi = (tid << 16) | (pid << 20) | (1 << 8); + pic_send_ipi(ipi); + } + } + + return 0; +} diff --git a/arch/mips/netlogic/xlr/smpboot.S b/arch/mips/netlogic/xlr/smpboot.S new file mode 100644 index 00000000000..b8e074402c9 --- /dev/null +++ b/arch/mips/netlogic/xlr/smpboot.S @@ -0,0 +1,94 @@ +/* + * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights + * reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the NetLogic + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <asm/asm.h> +#include <asm/asm-offsets.h> +#include <asm/regdef.h> +#include <asm/mipsregs.h> + + +/* Don't jump to linux function from Bootloader stack. Change it + * here. Kernel might allocate bootloader memory before all the CPUs are + * brought up (eg: Inode cache region) and we better don't overwrite this + * memory + */ +NESTED(prom_pre_boot_secondary_cpus, 16, sp) + .set mips64 + mfc0 t0, $15, 1 # read ebase + andi t0, 0x1f # t0 has the processor_id() + sll t0, 2 # offset in cpu array + + PTR_LA t1, nlm_cpu_ready # mark CPU ready + PTR_ADDU t1, t0 + li t2, 1 + sw t2, 0(t1) + + PTR_LA t1, nlm_cpu_unblock + PTR_ADDU t1, t0 +1: lw t2, 0(t1) # wait till unblocked + beqz t2, 1b + nop + + PTR_LA t1, nlm_next_sp + PTR_L sp, 0(t1) + PTR_LA t1, nlm_next_gp + PTR_L gp, 0(t1) + + PTR_LA t0, nlm_early_init_secondary + jalr t0 + nop + + PTR_LA t0, smp_bootstrap + jr t0 + nop +END(prom_pre_boot_secondary_cpus) + +NESTED(nlm_boot_smp_nmi, 0, sp) + .set push + .set noat + .set mips64 + .set noreorder + + /* Clear the NMI and BEV bits */ + MFC0 k0, CP0_STATUS + li k1, 0xffb7ffff + and k0, k0, k1 + MTC0 k0, CP0_STATUS + + PTR_LA k1, secondary_entry_point + PTR_L k0, 0(k1) + jr k0 + nop + .set pop +END(nlm_boot_smp_nmi) diff --git a/arch/mips/netlogic/xlr/time.c b/arch/mips/netlogic/xlr/time.c new file mode 100644 index 00000000000..0d81b262593 --- /dev/null +++ b/arch/mips/netlogic/xlr/time.c @@ -0,0 +1,51 @@ +/* + * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights + * reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the NetLogic + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <linux/init.h> + +#include <asm/time.h> +#include <asm/netlogic/interrupt.h> +#include <asm/netlogic/psb-bootinfo.h> + +unsigned int __cpuinit get_c0_compare_int(void) +{ + return IRQ_TIMER; +} + +void __init plat_time_init(void) +{ + mips_hpt_frequency = nlm_prom_info.cpu_frequency; + pr_info("MIPS counter frequency [%ld]\n", + (unsigned long)mips_hpt_frequency); +} diff --git a/arch/mips/netlogic/xlr/xlr_console.c b/arch/mips/netlogic/xlr/xlr_console.c new file mode 100644 index 00000000000..759df069220 --- /dev/null +++ b/arch/mips/netlogic/xlr/xlr_console.c @@ -0,0 +1,46 @@ +/* + * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights + * reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the NetLogic + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <linux/types.h> +#include <asm/netlogic/xlr/iomap.h> + +void prom_putchar(char c) +{ + nlm_reg_t *mmio; + + mmio = netlogic_io_mmio(NETLOGIC_IO_UART_0_OFFSET); + while (netlogic_read_reg(mmio, 0x5) == 0) + ; + netlogic_write_reg(mmio, 0x0, c); +} diff --git a/arch/mips/pci/Makefile b/arch/mips/pci/Makefile index c9209ca6c8e..4df87993744 100644 --- a/arch/mips/pci/Makefile +++ b/arch/mips/pci/Makefile @@ -41,6 +41,7 @@ obj-$(CONFIG_SIBYTE_SB1250) += fixup-sb1250.o pci-sb1250.o obj-$(CONFIG_SIBYTE_BCM112X) += fixup-sb1250.o pci-sb1250.o obj-$(CONFIG_SIBYTE_BCM1x80) += pci-bcm1480.o pci-bcm1480ht.o obj-$(CONFIG_SNI_RM) += fixup-sni.o ops-sni.o +obj-$(CONFIG_SOC_XWAY) += pci-lantiq.o ops-lantiq.o obj-$(CONFIG_TANBAC_TB0219) += fixup-tb0219.o obj-$(CONFIG_TANBAC_TB0226) += fixup-tb0226.o obj-$(CONFIG_TANBAC_TB0287) += fixup-tb0287.o @@ -55,6 +56,7 @@ obj-$(CONFIG_ZAO_CAPCELLA) += fixup-capcella.o obj-$(CONFIG_WR_PPMC) += fixup-wrppmc.o obj-$(CONFIG_MIKROTIK_RB532) += pci-rc32434.o ops-rc32434.o fixup-rc32434.o obj-$(CONFIG_CPU_CAVIUM_OCTEON) += pci-octeon.o pcie-octeon.o +obj-$(CONFIG_NLM_XLR) += pci-xlr.o ifdef CONFIG_PCI_MSI obj-$(CONFIG_CPU_CAVIUM_OCTEON) += msi-octeon.o diff --git a/arch/mips/pci/ops-lantiq.c b/arch/mips/pci/ops-lantiq.c new file mode 100644 index 00000000000..1f2afb55cc7 --- /dev/null +++ b/arch/mips/pci/ops-lantiq.c @@ -0,0 +1,116 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2010 John Crispin <blogic@openwrt.org> + */ + +#include <linux/types.h> +#include <linux/pci.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/mm.h> +#include <asm/addrspace.h> +#include <linux/vmalloc.h> + +#include <lantiq_soc.h> + +#include "pci-lantiq.h" + +#define LTQ_PCI_CFG_BUSNUM_SHF 16 +#define LTQ_PCI_CFG_DEVNUM_SHF 11 +#define LTQ_PCI_CFG_FUNNUM_SHF 8 + +#define PCI_ACCESS_READ 0 +#define PCI_ACCESS_WRITE 1 + +static int ltq_pci_config_access(unsigned char access_type, struct pci_bus *bus, + unsigned int devfn, unsigned int where, u32 *data) +{ + unsigned long cfg_base; + unsigned long flags; + u32 temp; + + /* we support slot from 0 to 15 dev_fn & 0x68 (AD29) is the + SoC itself */ + if ((bus->number != 0) || ((devfn & 0xf8) > 0x78) + || ((devfn & 0xf8) == 0) || ((devfn & 0xf8) == 0x68)) + return 1; + + spin_lock_irqsave(&ebu_lock, flags); + + cfg_base = (unsigned long) ltq_pci_mapped_cfg; + cfg_base |= (bus->number << LTQ_PCI_CFG_BUSNUM_SHF) | (devfn << + LTQ_PCI_CFG_FUNNUM_SHF) | (where & ~0x3); + + /* Perform access */ + if (access_type == PCI_ACCESS_WRITE) { + ltq_w32(swab32(*data), ((u32 *)cfg_base)); + } else { + *data = ltq_r32(((u32 *)(cfg_base))); + *data = swab32(*data); + } + wmb(); + + /* clean possible Master abort */ + cfg_base = (unsigned long) ltq_pci_mapped_cfg; + cfg_base |= (0x0 << LTQ_PCI_CFG_FUNNUM_SHF) + 4; + temp = ltq_r32(((u32 *)(cfg_base))); + temp = swab32(temp); + cfg_base = (unsigned long) ltq_pci_mapped_cfg; + cfg_base |= (0x68 << LTQ_PCI_CFG_FUNNUM_SHF) + 4; + ltq_w32(temp, ((u32 *)cfg_base)); + + spin_unlock_irqrestore(&ebu_lock, flags); + + if (((*data) == 0xffffffff) && (access_type == PCI_ACCESS_READ)) + return 1; + + return 0; +} + +int ltq_pci_read_config_dword(struct pci_bus *bus, unsigned int devfn, + int where, int size, u32 *val) +{ + u32 data = 0; + + if (ltq_pci_config_access(PCI_ACCESS_READ, bus, devfn, where, &data)) + return PCIBIOS_DEVICE_NOT_FOUND; + + if (size == 1) + *val = (data >> ((where & 3) << 3)) & 0xff; + else if (size == 2) + *val = (data >> ((where & 3) << 3)) & 0xffff; + else + *val = data; + + return PCIBIOS_SUCCESSFUL; +} + +int ltq_pci_write_config_dword(struct pci_bus *bus, unsigned int devfn, + int where, int size, u32 val) +{ + u32 data = 0; + + if (size == 4) { + data = val; + } else { + if (ltq_pci_config_access(PCI_ACCESS_READ, bus, + devfn, where, &data)) + return PCIBIOS_DEVICE_NOT_FOUND; + + if (size == 1) + data = (data & ~(0xff << ((where & 3) << 3))) | + (val << ((where & 3) << 3)); + else if (size == 2) + data = (data & ~(0xffff << ((where & 3) << 3))) | + (val << ((where & 3) << 3)); + } + + if (ltq_pci_config_access(PCI_ACCESS_WRITE, bus, devfn, where, &data)) + return PCIBIOS_DEVICE_NOT_FOUND; + + return PCIBIOS_SUCCESSFUL; +} diff --git a/arch/mips/pci/pci-lantiq.c b/arch/mips/pci/pci-lantiq.c new file mode 100644 index 00000000000..603d7493e96 --- /dev/null +++ b/arch/mips/pci/pci-lantiq.c @@ -0,0 +1,297 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2010 John Crispin <blogic@openwrt.org> + */ + +#include <linux/types.h> +#include <linux/pci.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/mm.h> +#include <linux/vmalloc.h> +#include <linux/platform_device.h> + +#include <asm/pci.h> +#include <asm/gpio.h> +#include <asm/addrspace.h> + +#include <lantiq_soc.h> +#include <lantiq_irq.h> +#include <lantiq_platform.h> + +#include "pci-lantiq.h" + +#define LTQ_PCI_CFG_BASE 0x17000000 +#define LTQ_PCI_CFG_SIZE 0x00008000 +#define LTQ_PCI_MEM_BASE 0x18000000 +#define LTQ_PCI_MEM_SIZE 0x02000000 +#define LTQ_PCI_IO_BASE 0x1AE00000 +#define LTQ_PCI_IO_SIZE 0x00200000 + +#define PCI_CR_FCI_ADDR_MAP0 0x00C0 +#define PCI_CR_FCI_ADDR_MAP1 0x00C4 +#define PCI_CR_FCI_ADDR_MAP2 0x00C8 +#define PCI_CR_FCI_ADDR_MAP3 0x00CC +#define PCI_CR_FCI_ADDR_MAP4 0x00D0 +#define PCI_CR_FCI_ADDR_MAP5 0x00D4 +#define PCI_CR_FCI_ADDR_MAP6 0x00D8 +#define PCI_CR_FCI_ADDR_MAP7 0x00DC +#define PCI_CR_CLK_CTRL 0x0000 +#define PCI_CR_PCI_MOD 0x0030 +#define PCI_CR_PC_ARB 0x0080 +#define PCI_CR_FCI_ADDR_MAP11hg 0x00E4 +#define PCI_CR_BAR11MASK 0x0044 +#define PCI_CR_BAR12MASK 0x0048 +#define PCI_CR_BAR13MASK 0x004C +#define PCI_CS_BASE_ADDR1 0x0010 +#define PCI_CR_PCI_ADDR_MAP11 0x0064 +#define PCI_CR_FCI_BURST_LENGTH 0x00E8 +#define PCI_CR_PCI_EOI 0x002C +#define PCI_CS_STS_CMD 0x0004 + +#define PCI_MASTER0_REQ_MASK_2BITS 8 +#define PCI_MASTER1_REQ_MASK_2BITS 10 +#define PCI_MASTER2_REQ_MASK_2BITS 12 +#define INTERNAL_ARB_ENABLE_BIT 0 + +#define LTQ_CGU_IFCCR 0x0018 +#define LTQ_CGU_PCICR 0x0034 + +#define ltq_pci_w32(x, y) ltq_w32((x), ltq_pci_membase + (y)) +#define ltq_pci_r32(x) ltq_r32(ltq_pci_membase + (x)) + +#define ltq_pci_cfg_w32(x, y) ltq_w32((x), ltq_pci_mapped_cfg + (y)) +#define ltq_pci_cfg_r32(x) ltq_r32(ltq_pci_mapped_cfg + (x)) + +struct ltq_pci_gpio_map { + int pin; + int alt0; + int alt1; + int dir; + char *name; +}; + +/* the pci core can make use of the following gpios */ +static struct ltq_pci_gpio_map ltq_pci_gpio_map[] = { + { 0, 1, 0, 0, "pci-exin0" }, + { 1, 1, 0, 0, "pci-exin1" }, + { 2, 1, 0, 0, "pci-exin2" }, + { 39, 1, 0, 0, "pci-exin3" }, + { 10, 1, 0, 0, "pci-exin4" }, + { 9, 1, 0, 0, "pci-exin5" }, + { 30, 1, 0, 1, "pci-gnt1" }, + { 23, 1, 0, 1, "pci-gnt2" }, + { 19, 1, 0, 1, "pci-gnt3" }, + { 38, 1, 0, 1, "pci-gnt4" }, + { 29, 1, 0, 0, "pci-req1" }, + { 31, 1, 0, 0, "pci-req2" }, + { 3, 1, 0, 0, "pci-req3" }, + { 37, 1, 0, 0, "pci-req4" }, +}; + +__iomem void *ltq_pci_mapped_cfg; +static __iomem void *ltq_pci_membase; + +int (*ltqpci_plat_dev_init)(struct pci_dev *dev) = NULL; + +/* Since the PCI REQ pins can be reused for other functionality, make it + possible to exclude those from interpretation by the PCI controller */ +static int ltq_pci_req_mask = 0xf; + +static int *ltq_pci_irq_map; + +struct pci_ops ltq_pci_ops = { + .read = ltq_pci_read_config_dword, + .write = ltq_pci_write_config_dword +}; + +static struct resource pci_io_resource = { + .name = "pci io space", + .start = LTQ_PCI_IO_BASE, + .end = LTQ_PCI_IO_BASE + LTQ_PCI_IO_SIZE - 1, + .flags = IORESOURCE_IO +}; + +static struct resource pci_mem_resource = { + .name = "pci memory space", + .start = LTQ_PCI_MEM_BASE, + .end = LTQ_PCI_MEM_BASE + LTQ_PCI_MEM_SIZE - 1, + .flags = IORESOURCE_MEM +}; + +static struct pci_controller ltq_pci_controller = { + .pci_ops = <q_pci_ops, + .mem_resource = &pci_mem_resource, + .mem_offset = 0x00000000UL, + .io_resource = &pci_io_resource, + .io_offset = 0x00000000UL, +}; + +int pcibios_plat_dev_init(struct pci_dev *dev) +{ + if (ltqpci_plat_dev_init) + return ltqpci_plat_dev_init(dev); + + return 0; +} + +static u32 ltq_calc_bar11mask(void) +{ + u32 mem, bar11mask; + + /* BAR11MASK value depends on available memory on system. */ + mem = num_physpages * PAGE_SIZE; + bar11mask = (0x0ffffff0 & ~((1 << (fls(mem) - 1)) - 1)) | 8; + + return bar11mask; +} + +static void ltq_pci_setup_gpio(int gpio) +{ + int i; + for (i = 0; i < ARRAY_SIZE(ltq_pci_gpio_map); i++) { + if (gpio & (1 << i)) { + ltq_gpio_request(ltq_pci_gpio_map[i].pin, + ltq_pci_gpio_map[i].alt0, + ltq_pci_gpio_map[i].alt1, + ltq_pci_gpio_map[i].dir, + ltq_pci_gpio_map[i].name); + } + } + ltq_gpio_request(21, 0, 0, 1, "pci-reset"); + ltq_pci_req_mask = (gpio >> PCI_REQ_SHIFT) & PCI_REQ_MASK; +} + +static int __devinit ltq_pci_startup(struct ltq_pci_data *conf) +{ + u32 temp_buffer; + + /* set clock to 33Mhz */ + ltq_cgu_w32(ltq_cgu_r32(LTQ_CGU_IFCCR) & ~0xf00000, LTQ_CGU_IFCCR); + ltq_cgu_w32(ltq_cgu_r32(LTQ_CGU_IFCCR) | 0x800000, LTQ_CGU_IFCCR); + + /* external or internal clock ? */ + if (conf->clock) { + ltq_cgu_w32(ltq_cgu_r32(LTQ_CGU_IFCCR) & ~(1 << 16), + LTQ_CGU_IFCCR); + ltq_cgu_w32((1 << 30), LTQ_CGU_PCICR); + } else { + ltq_cgu_w32(ltq_cgu_r32(LTQ_CGU_IFCCR) | (1 << 16), + LTQ_CGU_IFCCR); + ltq_cgu_w32((1 << 31) | (1 << 30), LTQ_CGU_PCICR); + } + + /* setup pci clock and gpis used by pci */ + ltq_pci_setup_gpio(conf->gpio); + + /* enable auto-switching between PCI and EBU */ + ltq_pci_w32(0xa, PCI_CR_CLK_CTRL); + + /* busy, i.e. configuration is not done, PCI access has to be retried */ + ltq_pci_w32(ltq_pci_r32(PCI_CR_PCI_MOD) & ~(1 << 24), PCI_CR_PCI_MOD); + wmb(); + /* BUS Master/IO/MEM access */ + ltq_pci_cfg_w32(ltq_pci_cfg_r32(PCI_CS_STS_CMD) | 7, PCI_CS_STS_CMD); + + /* enable external 2 PCI masters */ + temp_buffer = ltq_pci_r32(PCI_CR_PC_ARB); + temp_buffer &= (~(ltq_pci_req_mask << 16)); + /* enable internal arbiter */ + temp_buffer |= (1 << INTERNAL_ARB_ENABLE_BIT); + /* enable internal PCI master reqest */ + temp_buffer &= (~(3 << PCI_MASTER0_REQ_MASK_2BITS)); + + /* enable EBU request */ + temp_buffer &= (~(3 << PCI_MASTER1_REQ_MASK_2BITS)); + + /* enable all external masters request */ + temp_buffer &= (~(3 << PCI_MASTER2_REQ_MASK_2BITS)); + ltq_pci_w32(temp_buffer, PCI_CR_PC_ARB); + wmb(); + + /* setup BAR memory regions */ + ltq_pci_w32(0x18000000, PCI_CR_FCI_ADDR_MAP0); + ltq_pci_w32(0x18400000, PCI_CR_FCI_ADDR_MAP1); + ltq_pci_w32(0x18800000, PCI_CR_FCI_ADDR_MAP2); + ltq_pci_w32(0x18c00000, PCI_CR_FCI_ADDR_MAP3); + ltq_pci_w32(0x19000000, PCI_CR_FCI_ADDR_MAP4); + ltq_pci_w32(0x19400000, PCI_CR_FCI_ADDR_MAP5); + ltq_pci_w32(0x19800000, PCI_CR_FCI_ADDR_MAP6); + ltq_pci_w32(0x19c00000, PCI_CR_FCI_ADDR_MAP7); + ltq_pci_w32(0x1ae00000, PCI_CR_FCI_ADDR_MAP11hg); + ltq_pci_w32(ltq_calc_bar11mask(), PCI_CR_BAR11MASK); + ltq_pci_w32(0, PCI_CR_PCI_ADDR_MAP11); + ltq_pci_w32(0, PCI_CS_BASE_ADDR1); + /* both TX and RX endian swap are enabled */ + ltq_pci_w32(ltq_pci_r32(PCI_CR_PCI_EOI) | 3, PCI_CR_PCI_EOI); + wmb(); + ltq_pci_w32(ltq_pci_r32(PCI_CR_BAR12MASK) | 0x80000000, + PCI_CR_BAR12MASK); + ltq_pci_w32(ltq_pci_r32(PCI_CR_BAR13MASK) | 0x80000000, + PCI_CR_BAR13MASK); + /*use 8 dw burst length */ + ltq_pci_w32(0x303, PCI_CR_FCI_BURST_LENGTH); + ltq_pci_w32(ltq_pci_r32(PCI_CR_PCI_MOD) | (1 << 24), PCI_CR_PCI_MOD); + wmb(); + + /* setup irq line */ + ltq_ebu_w32(ltq_ebu_r32(LTQ_EBU_PCC_CON) | 0xc, LTQ_EBU_PCC_CON); + ltq_ebu_w32(ltq_ebu_r32(LTQ_EBU_PCC_IEN) | 0x10, LTQ_EBU_PCC_IEN); + + /* toggle reset pin */ + __gpio_set_value(21, 0); + wmb(); + mdelay(1); + __gpio_set_value(21, 1); + return 0; +} + +int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) +{ + if (ltq_pci_irq_map[slot]) + return ltq_pci_irq_map[slot]; + printk(KERN_ERR "lq_pci: trying to map irq for unknown slot %d\n", + slot); + + return 0; +} + +static int __devinit ltq_pci_probe(struct platform_device *pdev) +{ + struct ltq_pci_data *ltq_pci_data = + (struct ltq_pci_data *) pdev->dev.platform_data; + pci_probe_only = 0; + ltq_pci_irq_map = ltq_pci_data->irq; + ltq_pci_membase = ioremap_nocache(PCI_CR_BASE_ADDR, PCI_CR_SIZE); + ltq_pci_mapped_cfg = + ioremap_nocache(LTQ_PCI_CFG_BASE, LTQ_PCI_CFG_BASE); + ltq_pci_controller.io_map_base = + (unsigned long)ioremap(LTQ_PCI_IO_BASE, LTQ_PCI_IO_SIZE - 1); + ltq_pci_startup(ltq_pci_data); + register_pci_controller(<q_pci_controller); + + return 0; +} + +static struct platform_driver +ltq_pci_driver = { + .probe = ltq_pci_probe, + .driver = { + .name = "ltq_pci", + .owner = THIS_MODULE, + }, +}; + +int __init pcibios_init(void) +{ + int ret = platform_driver_register(<q_pci_driver); + if (ret) + printk(KERN_INFO "ltq_pci: Error registering platfom driver!"); + return ret; +} + +arch_initcall(pcibios_init); diff --git a/arch/mips/pci/pci-lantiq.h b/arch/mips/pci/pci-lantiq.h new file mode 100644 index 00000000000..66bf6cd6be3 --- /dev/null +++ b/arch/mips/pci/pci-lantiq.h @@ -0,0 +1,18 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2010 John Crispin <blogic@openwrt.org> + */ + +#ifndef _LTQ_PCI_H__ +#define _LTQ_PCI_H__ + +extern __iomem void *ltq_pci_mapped_cfg; +extern int ltq_pci_read_config_dword(struct pci_bus *bus, + unsigned int devfn, int where, int size, u32 *val); +extern int ltq_pci_write_config_dword(struct pci_bus *bus, + unsigned int devfn, int where, int size, u32 val); + +#endif diff --git a/arch/mips/pci/pci-xlr.c b/arch/mips/pci/pci-xlr.c new file mode 100644 index 00000000000..38fece16c43 --- /dev/null +++ b/arch/mips/pci/pci-xlr.c @@ -0,0 +1,214 @@ +/* + * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights + * reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the NetLogic + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <linux/types.h> +#include <linux/pci.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/mm.h> +#include <linux/console.h> + +#include <asm/io.h> + +#include <asm/netlogic/interrupt.h> +#include <asm/netlogic/xlr/iomap.h> +#include <asm/netlogic/xlr/pic.h> +#include <asm/netlogic/xlr/xlr.h> + +static void *pci_config_base; + +#define pci_cfg_addr(bus, devfn, off) (((bus) << 16) | ((devfn) << 8) | (off)) + +/* PCI ops */ +static inline u32 pci_cfg_read_32bit(struct pci_bus *bus, unsigned int devfn, + int where) +{ + u32 data; + u32 *cfgaddr; + + cfgaddr = (u32 *)(pci_config_base + + pci_cfg_addr(bus->number, devfn, where & ~3)); + data = *cfgaddr; + return cpu_to_le32(data); +} + +static inline void pci_cfg_write_32bit(struct pci_bus *bus, unsigned int devfn, + int where, u32 data) +{ + u32 *cfgaddr; + + cfgaddr = (u32 *)(pci_config_base + + pci_cfg_addr(bus->number, devfn, where & ~3)); + *cfgaddr = cpu_to_le32(data); +} + +static int nlm_pcibios_read(struct pci_bus *bus, unsigned int devfn, + int where, int size, u32 *val) +{ + u32 data; + + if ((size == 2) && (where & 1)) + return PCIBIOS_BAD_REGISTER_NUMBER; + else if ((size == 4) && (where & 3)) + return PCIBIOS_BAD_REGISTER_NUMBER; + + data = pci_cfg_read_32bit(bus, devfn, where); + + if (size == 1) + *val = (data >> ((where & 3) << 3)) & 0xff; + else if (size == 2) + *val = (data >> ((where & 3) << 3)) & 0xffff; + else + *val = data; + + return PCIBIOS_SUCCESSFUL; +} + + +static int nlm_pcibios_write(struct pci_bus *bus, unsigned int devfn, + int where, int size, u32 val) +{ + u32 data; + + if ((size == 2) && (where & 1)) + return PCIBIOS_BAD_REGISTER_NUMBER; + else if ((size == 4) && (where & 3)) + return PCIBIOS_BAD_REGISTER_NUMBER; + + data = pci_cfg_read_32bit(bus, devfn, where); + + if (size == 1) + data = (data & ~(0xff << ((where & 3) << 3))) | + (val << ((where & 3) << 3)); + else if (size == 2) + data = (data & ~(0xffff << ((where & 3) << 3))) | + (val << ((where & 3) << 3)); + else + data = val; + + pci_cfg_write_32bit(bus, devfn, where, data); + + return PCIBIOS_SUCCESSFUL; +} + +struct pci_ops nlm_pci_ops = { + .read = nlm_pcibios_read, + .write = nlm_pcibios_write +}; + +static struct resource nlm_pci_mem_resource = { + .name = "XLR PCI MEM", + .start = 0xd0000000UL, /* 256MB PCI mem @ 0xd000_0000 */ + .end = 0xdfffffffUL, + .flags = IORESOURCE_MEM, +}; + +static struct resource nlm_pci_io_resource = { + .name = "XLR IO MEM", + .start = 0x10000000UL, /* 16MB PCI IO @ 0x1000_0000 */ + .end = 0x100fffffUL, + .flags = IORESOURCE_IO, +}; + +struct pci_controller nlm_pci_controller = { + .index = 0, + .pci_ops = &nlm_pci_ops, + .mem_resource = &nlm_pci_mem_resource, + .mem_offset = 0x00000000UL, + .io_resource = &nlm_pci_io_resource, + .io_offset = 0x00000000UL, +}; + +int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) +{ + if (!nlm_chip_is_xls()) + return PIC_PCIX_IRQ; /* for XLR just one IRQ*/ + + /* + * For XLS PCIe, there is an IRQ per Link, find out which + * link the device is on to assign interrupts + */ + if (dev->bus->self == NULL) + return 0; + + switch (dev->bus->self->devfn) { + case 0x0: + return PIC_PCIE_LINK0_IRQ; + case 0x8: + return PIC_PCIE_LINK1_IRQ; + case 0x10: + if (nlm_chip_is_xls_b()) + return PIC_PCIE_XLSB0_LINK2_IRQ; + else + return PIC_PCIE_LINK2_IRQ; + case 0x18: + if (nlm_chip_is_xls_b()) + return PIC_PCIE_XLSB0_LINK3_IRQ; + else + return PIC_PCIE_LINK3_IRQ; + } + WARN(1, "Unexpected devfn %d\n", dev->bus->self->devfn); + return 0; +} + +/* Do platform specific device initialization at pci_enable_device() time */ +int pcibios_plat_dev_init(struct pci_dev *dev) +{ + return 0; +} + +static int __init pcibios_init(void) +{ + /* PSB assigns PCI resources */ + pci_probe_only = 1; + pci_config_base = ioremap(DEFAULT_PCI_CONFIG_BASE, 16 << 20); + + /* Extend IO port for memory mapped io */ + ioport_resource.start = 0; + ioport_resource.end = ~0; + + set_io_port_base(CKSEG1); + nlm_pci_controller.io_map_base = CKSEG1; + + pr_info("Registering XLR/XLS PCIX/PCIE Controller.\n"); + register_pci_controller(&nlm_pci_controller); + + return 0; +} + +arch_initcall(pcibios_init); + +struct pci_fixup pcibios_fixups[] = { + {0} +}; diff --git a/arch/mips/pmc-sierra/msp71xx/msp_irq_per.c b/arch/mips/pmc-sierra/msp71xx/msp_irq_per.c index f9b9dcdfa9d..98fd0099d96 100644 --- a/arch/mips/pmc-sierra/msp71xx/msp_irq_per.c +++ b/arch/mips/pmc-sierra/msp71xx/msp_irq_per.c @@ -97,7 +97,7 @@ static int msp_per_irq_set_affinity(struct irq_data *d, static struct irq_chip msp_per_irq_controller = { .name = "MSP_PER", - .irq_enable = unmask_per_irq. + .irq_enable = unmask_per_irq, .irq_disable = mask_per_irq, .irq_ack = msp_per_irq_ack, #ifdef CONFIG_SMP diff --git a/arch/mips/pmc-sierra/yosemite/smp.c b/arch/mips/pmc-sierra/yosemite/smp.c index efc9e889b34..2608752898c 100644 --- a/arch/mips/pmc-sierra/yosemite/smp.c +++ b/arch/mips/pmc-sierra/yosemite/smp.c @@ -55,6 +55,8 @@ void titan_mailbox_irq(void) if (status & 0x2) smp_call_function_interrupt(); + if (status & 0x4) + scheduler_ipi(); break; case 1: @@ -63,6 +65,8 @@ void titan_mailbox_irq(void) if (status & 0x2) smp_call_function_interrupt(); + if (status & 0x4) + scheduler_ipi(); break; } } diff --git a/arch/mips/power/hibernate.S b/arch/mips/power/hibernate.S index dbb5c7b4b70..f8a751c0328 100644 --- a/arch/mips/power/hibernate.S +++ b/arch/mips/power/hibernate.S @@ -35,7 +35,7 @@ LEAF(swsusp_arch_resume) 0: PTR_L t1, PBE_ADDRESS(t0) /* source */ PTR_L t2, PBE_ORIG_ADDRESS(t0) /* destination */ - PTR_ADDIU t3, t1, PAGE_SIZE + PTR_ADDU t3, t1, PAGE_SIZE 1: REG_L t8, (t1) REG_S t8, (t2) diff --git a/arch/mips/rb532/gpio.c b/arch/mips/rb532/gpio.c index 37de05d595e..6c47dfeb7be 100644 --- a/arch/mips/rb532/gpio.c +++ b/arch/mips/rb532/gpio.c @@ -185,7 +185,7 @@ int __init rb532_gpio_init(void) struct resource *r; r = rb532_gpio_reg0_res; - rb532_gpio_chip->regbase = ioremap_nocache(r->start, r->end - r->start); + rb532_gpio_chip->regbase = ioremap_nocache(r->start, resource_size(r)); if (!rb532_gpio_chip->regbase) { printk(KERN_ERR "rb532: cannot remap GPIO register 0\n"); diff --git a/arch/mips/sgi-ip22/ip22-platform.c b/arch/mips/sgi-ip22/ip22-platform.c index deddbf0ebe5..698904daf90 100644 --- a/arch/mips/sgi-ip22/ip22-platform.c +++ b/arch/mips/sgi-ip22/ip22-platform.c @@ -132,7 +132,7 @@ static struct platform_device eth1_device = { */ static int __init sgiseeq_devinit(void) { - unsigned int tmp; + unsigned int pbdma __maybe_unused; int res, i; eth0_pd.hpc = hpc3c0; @@ -151,7 +151,7 @@ static int __init sgiseeq_devinit(void) /* Second HPC is missing? */ if (ip22_is_fullhouse() || - get_dbe(tmp, (unsigned int *)&hpc3c1->pbdma[1])) + get_dbe(pbdma, (unsigned int *)&hpc3c1->pbdma[1])) return 0; sgimc->giopar |= SGIMC_GIOPAR_MASTEREXP1 | SGIMC_GIOPAR_EXP164 | diff --git a/arch/mips/sgi-ip22/ip22-time.c b/arch/mips/sgi-ip22/ip22-time.c index 603fc91c103..1a94c989418 100644 --- a/arch/mips/sgi-ip22/ip22-time.c +++ b/arch/mips/sgi-ip22/ip22-time.c @@ -32,7 +32,7 @@ static unsigned long dosample(void) { u32 ct0, ct1; - u8 msb, lsb; + u8 msb; /* Start the counter. */ sgint->tcword = (SGINT_TCWORD_CNT2 | SGINT_TCWORD_CALL | @@ -46,7 +46,7 @@ static unsigned long dosample(void) /* Latch and spin until top byte of counter2 is zero */ do { writeb(SGINT_TCWORD_CNT2 | SGINT_TCWORD_CLAT, &sgint->tcword); - lsb = readb(&sgint->tcnt2); + (void) readb(&sgint->tcnt2); msb = readb(&sgint->tcnt2); ct1 = read_c0_count(); } while (msb); diff --git a/arch/mips/sgi-ip27/ip27-hubio.c b/arch/mips/sgi-ip27/ip27-hubio.c index a1fa4abb3f6..cd0d5b06cd8 100644 --- a/arch/mips/sgi-ip27/ip27-hubio.c +++ b/arch/mips/sgi-ip27/ip27-hubio.c @@ -29,7 +29,6 @@ unsigned long hub_pio_map(cnodeid_t cnode, xwidgetnum_t widget, unsigned long xtalk_addr, size_t size) { nasid_t nasid = COMPACT_TO_NASID_NODEID(cnode); - volatile hubreg_t junk; unsigned i; /* use small-window mapping if possible */ @@ -64,7 +63,7 @@ unsigned long hub_pio_map(cnodeid_t cnode, xwidgetnum_t widget, * after we write it. */ IIO_ITTE_PUT(nasid, i, HUB_PIO_MAP_TO_MEM, widget, xtalk_addr); - junk = HUB_L(IIO_ITTE_GET(nasid, i)); + (void) HUB_L(IIO_ITTE_GET(nasid, i)); return NODE_BWIN_BASE(nasid, widget) + (xtalk_addr % BWIN_SIZE); } diff --git a/arch/mips/sgi-ip27/ip27-irq.c b/arch/mips/sgi-ip27/ip27-irq.c index 0a04603d577..b18b04e4857 100644 --- a/arch/mips/sgi-ip27/ip27-irq.c +++ b/arch/mips/sgi-ip27/ip27-irq.c @@ -147,8 +147,10 @@ static void ip27_do_irq_mask0(void) #ifdef CONFIG_SMP if (pend0 & (1UL << CPU_RESCHED_A_IRQ)) { LOCAL_HUB_CLR_INTR(CPU_RESCHED_A_IRQ); + scheduler_ipi(); } else if (pend0 & (1UL << CPU_RESCHED_B_IRQ)) { LOCAL_HUB_CLR_INTR(CPU_RESCHED_B_IRQ); + scheduler_ipi(); } else if (pend0 & (1UL << CPU_CALL_A_IRQ)) { LOCAL_HUB_CLR_INTR(CPU_CALL_A_IRQ); smp_call_function_interrupt(); diff --git a/arch/mips/sgi-ip27/ip27-klnuma.c b/arch/mips/sgi-ip27/ip27-klnuma.c index c3d30a88daf..1d1919a44e8 100644 --- a/arch/mips/sgi-ip27/ip27-klnuma.c +++ b/arch/mips/sgi-ip27/ip27-klnuma.c @@ -54,11 +54,8 @@ void __init setup_replication_mask(void) static __init void set_ktext_source(nasid_t client_nasid, nasid_t server_nasid) { - cnodeid_t client_cnode; kern_vars_t *kvp; - client_cnode = NASID_TO_COMPACT_NODEID(client_nasid); - kvp = &hub_data(client_nasid)->kern_vars; KERN_VARS_ADDR(client_nasid) = (unsigned long)kvp; diff --git a/arch/mips/sgi-ip27/ip27-timer.c b/arch/mips/sgi-ip27/ip27-timer.c index a152538d3c9..ef74f3267f9 100644 --- a/arch/mips/sgi-ip27/ip27-timer.c +++ b/arch/mips/sgi-ip27/ip27-timer.c @@ -66,18 +66,7 @@ static int rt_next_event(unsigned long delta, struct clock_event_device *evt) static void rt_set_mode(enum clock_event_mode mode, struct clock_event_device *evt) { - switch (mode) { - case CLOCK_EVT_MODE_ONESHOT: - /* The only mode supported */ - break; - - case CLOCK_EVT_MODE_PERIODIC: - case CLOCK_EVT_MODE_UNUSED: - case CLOCK_EVT_MODE_SHUTDOWN: - case CLOCK_EVT_MODE_RESUME: - /* Nothing to do */ - break; - } + /* Nothing to do ... */ } int rt_timer_irq; @@ -174,8 +163,7 @@ static void __init hub_rt_clocksource_init(void) { struct clocksource *cs = &hub_rt_clocksource; - clocksource_set_clock(cs, CYCLES_PER_SEC); - clocksource_register(cs); + clocksource_register_hz(cs, CYCLES_PER_SEC); } void __init plat_time_init(void) diff --git a/arch/mips/sibyte/bcm1480/smp.c b/arch/mips/sibyte/bcm1480/smp.c index 47b347c992e..d667875be56 100644 --- a/arch/mips/sibyte/bcm1480/smp.c +++ b/arch/mips/sibyte/bcm1480/smp.c @@ -20,6 +20,7 @@ #include <linux/delay.h> #include <linux/smp.h> #include <linux/kernel_stat.h> +#include <linux/sched.h> #include <asm/mmu_context.h> #include <asm/io.h> @@ -189,10 +190,8 @@ void bcm1480_mailbox_interrupt(void) /* Clear the mailbox to clear the interrupt */ __raw_writeq(((u64)action)<<48, mailbox_0_clear_regs[cpu]); - /* - * Nothing to do for SMP_RESCHEDULE_YOURSELF; returning from the - * interrupt will do the reschedule for us - */ + if (action & SMP_RESCHEDULE_YOURSELF) + scheduler_ipi(); if (action & SMP_CALL_FUNCTION) smp_call_function_interrupt(); diff --git a/arch/mips/sibyte/sb1250/smp.c b/arch/mips/sibyte/sb1250/smp.c index c00a5cb1128..38e7f6bd792 100644 --- a/arch/mips/sibyte/sb1250/smp.c +++ b/arch/mips/sibyte/sb1250/smp.c @@ -21,6 +21,7 @@ #include <linux/interrupt.h> #include <linux/smp.h> #include <linux/kernel_stat.h> +#include <linux/sched.h> #include <asm/mmu_context.h> #include <asm/io.h> @@ -177,10 +178,8 @@ void sb1250_mailbox_interrupt(void) /* Clear the mailbox to clear the interrupt */ ____raw_writeq(((u64)action) << 48, mailbox_clear_regs[cpu]); - /* - * Nothing to do for SMP_RESCHEDULE_YOURSELF; returning from the - * interrupt will do the reschedule for us - */ + if (action & SMP_RESCHEDULE_YOURSELF) + scheduler_ipi(); if (action & SMP_CALL_FUNCTION) smp_call_function_interrupt(); diff --git a/arch/mips/sni/time.c b/arch/mips/sni/time.c index c76151b5656..0904d4d30cb 100644 --- a/arch/mips/sni/time.c +++ b/arch/mips/sni/time.c @@ -95,7 +95,7 @@ static void __init sni_a20r_timer_setup(void) static __init unsigned long dosample(void) { u32 ct0, ct1; - volatile u8 msb, lsb; + volatile u8 msb; /* Start the counter. */ outb_p(0x34, 0x43); @@ -108,7 +108,7 @@ static __init unsigned long dosample(void) /* Latch and spin until top byte of counter0 is zero */ do { outb(0x00, 0x43); - lsb = inb(0x40); + (void) inb(0x40); msb = inb(0x40); ct1 = read_c0_count(); } while (msb); diff --git a/arch/mn10300/kernel/smp.c b/arch/mn10300/kernel/smp.c index 226c826a219..83fb2791223 100644 --- a/arch/mn10300/kernel/smp.c +++ b/arch/mn10300/kernel/smp.c @@ -494,14 +494,11 @@ void smp_send_stop(void) * @irq: The interrupt number. * @dev_id: The device ID. * - * We need do nothing here, since the scheduling will be effected on our way - * back through entry.S. - * * Returns IRQ_HANDLED to indicate we handled the interrupt successfully. */ static irqreturn_t smp_reschedule_interrupt(int irq, void *dev_id) { - /* do nothing */ + scheduler_ipi(); return IRQ_HANDLED; } diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c index 69d63d354ef..828305f19cf 100644 --- a/arch/parisc/kernel/smp.c +++ b/arch/parisc/kernel/smp.c @@ -155,10 +155,7 @@ ipi_interrupt(int irq, void *dev_id) case IPI_RESCHEDULE: smp_debug(100, KERN_DEBUG "CPU%d IPI_RESCHEDULE\n", this_cpu); - /* - * Reschedule callback. Everything to be - * done is done by the interrupt return path. - */ + scheduler_ipi(); break; case IPI_CALL_FUNC: diff --git a/arch/powerpc/include/asm/mpic.h b/arch/powerpc/include/asm/mpic.h index 7005ee0b074..49baddcdd14 100644 --- a/arch/powerpc/include/asm/mpic.h +++ b/arch/powerpc/include/asm/mpic.h @@ -3,7 +3,6 @@ #ifdef __KERNEL__ #include <linux/irq.h> -#include <linux/sysdev.h> #include <asm/dcr.h> #include <asm/msi_bitmap.h> @@ -320,8 +319,6 @@ struct mpic /* link */ struct mpic *next; - struct sys_device sysdev; - #ifdef CONFIG_PM struct mpic_irq_save *save_data; #endif diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c index 55613e33e26..a6ae1cfad86 100644 --- a/arch/powerpc/kernel/ptrace.c +++ b/arch/powerpc/kernel/ptrace.c @@ -933,12 +933,16 @@ int ptrace_set_debugreg(struct task_struct *task, unsigned long addr, if (data && !(data & DABR_TRANSLATION)) return -EIO; #ifdef CONFIG_HAVE_HW_BREAKPOINT + if (ptrace_get_breakpoints(task) < 0) + return -ESRCH; + bp = thread->ptrace_bps[0]; if ((!data) || !(data & (DABR_DATA_WRITE | DABR_DATA_READ))) { if (bp) { unregister_hw_breakpoint(bp); thread->ptrace_bps[0] = NULL; } + ptrace_put_breakpoints(task); return 0; } if (bp) { @@ -948,9 +952,12 @@ int ptrace_set_debugreg(struct task_struct *task, unsigned long addr, (DABR_DATA_WRITE | DABR_DATA_READ), &attr.bp_type); ret = modify_user_hw_breakpoint(bp, &attr); - if (ret) + if (ret) { + ptrace_put_breakpoints(task); return ret; + } thread->ptrace_bps[0] = bp; + ptrace_put_breakpoints(task); thread->dabr = data; return 0; } @@ -965,9 +972,12 @@ int ptrace_set_debugreg(struct task_struct *task, unsigned long addr, ptrace_triggered, task); if (IS_ERR(bp)) { thread->ptrace_bps[0] = NULL; + ptrace_put_breakpoints(task); return PTR_ERR(bp); } + ptrace_put_breakpoints(task); + #endif /* CONFIG_HAVE_HW_BREAKPOINT */ /* Move contents to the DABR register */ diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c index cbdbb14be4b..9f9c204bef6 100644 --- a/arch/powerpc/kernel/smp.c +++ b/arch/powerpc/kernel/smp.c @@ -116,7 +116,7 @@ void smp_message_recv(int msg) generic_smp_call_function_interrupt(); break; case PPC_MSG_RESCHEDULE: - /* we notice need_resched on exit */ + scheduler_ipi(); break; case PPC_MSG_CALL_FUNC_SINGLE: generic_smp_call_function_single_interrupt(); @@ -146,7 +146,7 @@ static irqreturn_t call_function_action(int irq, void *data) static irqreturn_t reschedule_action(int irq, void *data) { - /* we just need the return path side effect of checking need_resched */ + scheduler_ipi(); return IRQ_HANDLED; } diff --git a/arch/powerpc/platforms/83xx/suspend.c b/arch/powerpc/platforms/83xx/suspend.c index 188272934cf..104faa8aa23 100644 --- a/arch/powerpc/platforms/83xx/suspend.c +++ b/arch/powerpc/platforms/83xx/suspend.c @@ -318,17 +318,20 @@ static const struct platform_suspend_ops mpc83xx_suspend_ops = { .end = mpc83xx_suspend_end, }; +static struct of_device_id pmc_match[]; static int pmc_probe(struct platform_device *ofdev) { + const struct of_device_id *match; struct device_node *np = ofdev->dev.of_node; struct resource res; struct pmc_type *type; int ret = 0; - if (!ofdev->dev.of_match) + match = of_match_device(pmc_match, &ofdev->dev); + if (!match) return -EINVAL; - type = ofdev->dev.of_match->data; + type = match->data; if (!of_device_is_available(np)) return -ENODEV; diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c index acfaccea5f4..3675da73623 100644 --- a/arch/powerpc/platforms/cell/spu_base.c +++ b/arch/powerpc/platforms/cell/spu_base.c @@ -32,6 +32,7 @@ #include <linux/io.h> #include <linux/mutex.h> #include <linux/linux_logo.h> +#include <linux/syscore_ops.h> #include <asm/spu.h> #include <asm/spu_priv1.h> #include <asm/spu_csa.h> @@ -521,18 +522,8 @@ void spu_init_channels(struct spu *spu) } EXPORT_SYMBOL_GPL(spu_init_channels); -static int spu_shutdown(struct sys_device *sysdev) -{ - struct spu *spu = container_of(sysdev, struct spu, sysdev); - - spu_free_irqs(spu); - spu_destroy_spu(spu); - return 0; -} - static struct sysdev_class spu_sysdev_class = { .name = "spu", - .shutdown = spu_shutdown, }; int spu_add_sysdev_attr(struct sysdev_attribute *attr) @@ -797,6 +788,22 @@ static inline void crash_register_spus(struct list_head *list) } #endif +static void spu_shutdown(void) +{ + struct spu *spu; + + mutex_lock(&spu_full_list_mutex); + list_for_each_entry(spu, &spu_full_list, full_list) { + spu_free_irqs(spu); + spu_destroy_spu(spu); + } + mutex_unlock(&spu_full_list_mutex); +} + +static struct syscore_ops spu_syscore_ops = { + .shutdown = spu_shutdown, +}; + static int __init init_spu_base(void) { int i, ret = 0; @@ -830,6 +837,7 @@ static int __init init_spu_base(void) crash_register_spus(&spu_full_list); mutex_unlock(&spu_full_list_mutex); spu_add_sysdev_attr(&attr_stat); + register_syscore_ops(&spu_syscore_ops); spu_init_affinity(); diff --git a/arch/powerpc/platforms/powermac/pic.c b/arch/powerpc/platforms/powermac/pic.c index 023f24086a0..7c18a1607d1 100644 --- a/arch/powerpc/platforms/powermac/pic.c +++ b/arch/powerpc/platforms/powermac/pic.c @@ -21,7 +21,7 @@ #include <linux/signal.h> #include <linux/pci.h> #include <linux/interrupt.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/adb.h> #include <linux/pmu.h> #include <linux/module.h> @@ -677,7 +677,7 @@ not_found: return viaint; } -static int pmacpic_suspend(struct sys_device *sysdev, pm_message_t state) +static int pmacpic_suspend(void) { int viaint = pmacpic_find_viaint(); @@ -698,7 +698,7 @@ static int pmacpic_suspend(struct sys_device *sysdev, pm_message_t state) return 0; } -static int pmacpic_resume(struct sys_device *sysdev) +static void pmacpic_resume(void) { int i; @@ -709,39 +709,19 @@ static int pmacpic_resume(struct sys_device *sysdev) for (i = 0; i < max_real_irqs; ++i) if (test_bit(i, sleep_save_mask)) pmac_unmask_irq(irq_get_irq_data(i)); - - return 0; } -#endif /* CONFIG_PM && CONFIG_PPC32 */ - -static struct sysdev_class pmacpic_sysclass = { - .name = "pmac_pic", +static struct syscore_ops pmacpic_syscore_ops = { + .suspend = pmacpic_suspend, + .resume = pmacpic_resume, }; -static struct sys_device device_pmacpic = { - .id = 0, - .cls = &pmacpic_sysclass, -}; - -static struct sysdev_driver driver_pmacpic = { -#if defined(CONFIG_PM) && defined(CONFIG_PPC32) - .suspend = &pmacpic_suspend, - .resume = &pmacpic_resume, -#endif /* CONFIG_PM && CONFIG_PPC32 */ -}; - -static int __init init_pmacpic_sysfs(void) +static int __init init_pmacpic_syscore(void) { -#ifdef CONFIG_PPC32 - if (max_irqs == 0) - return -ENODEV; -#endif - printk(KERN_DEBUG "Registering pmac pic with sysfs...\n"); - sysdev_class_register(&pmacpic_sysclass); - sysdev_register(&device_pmacpic); - sysdev_driver_register(&pmacpic_sysclass, &driver_pmacpic); + register_syscore_ops(&pmacpic_syscore_ops); return 0; } -machine_subsys_initcall(powermac, init_pmacpic_sysfs); +machine_subsys_initcall(powermac, init_pmacpic_syscore); + +#endif /* CONFIG_PM && CONFIG_PPC32 */ diff --git a/arch/powerpc/sysdev/fsl_msi.c b/arch/powerpc/sysdev/fsl_msi.c index d5679dc1e20..01cd2f08951 100644 --- a/arch/powerpc/sysdev/fsl_msi.c +++ b/arch/powerpc/sysdev/fsl_msi.c @@ -304,8 +304,10 @@ static int __devinit fsl_msi_setup_hwirq(struct fsl_msi *msi, return 0; } +static const struct of_device_id fsl_of_msi_ids[]; static int __devinit fsl_of_msi_probe(struct platform_device *dev) { + const struct of_device_id *match; struct fsl_msi *msi; struct resource res; int err, i, j, irq_index, count; @@ -316,9 +318,10 @@ static int __devinit fsl_of_msi_probe(struct platform_device *dev) u32 offset; static const u32 all_avail[] = { 0, NR_MSI_IRQS }; - if (!dev->dev.of_match) + match = of_match_device(fsl_of_msi_ids, &dev->dev); + if (!match) return -EINVAL; - features = dev->dev.of_match->data; + features = match->data; printk(KERN_DEBUG "Setting up Freescale MSI support\n"); diff --git a/arch/powerpc/sysdev/ipic.c b/arch/powerpc/sysdev/ipic.c index fa438be962b..596554a8725 100644 --- a/arch/powerpc/sysdev/ipic.c +++ b/arch/powerpc/sysdev/ipic.c @@ -18,7 +18,7 @@ #include <linux/stddef.h> #include <linux/sched.h> #include <linux/signal.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/device.h> #include <linux/bootmem.h> #include <linux/spinlock.h> @@ -902,7 +902,7 @@ static struct { u32 sercr; } ipic_saved_state; -static int ipic_suspend(struct sys_device *sdev, pm_message_t state) +static int ipic_suspend(void) { struct ipic *ipic = primary_ipic; @@ -933,7 +933,7 @@ static int ipic_suspend(struct sys_device *sdev, pm_message_t state) return 0; } -static int ipic_resume(struct sys_device *sdev) +static void ipic_resume(void) { struct ipic *ipic = primary_ipic; @@ -949,44 +949,26 @@ static int ipic_resume(struct sys_device *sdev) ipic_write(ipic->regs, IPIC_SECNR, ipic_saved_state.secnr); ipic_write(ipic->regs, IPIC_SERMR, ipic_saved_state.sermr); ipic_write(ipic->regs, IPIC_SERCR, ipic_saved_state.sercr); - - return 0; } #else #define ipic_suspend NULL #define ipic_resume NULL #endif -static struct sysdev_class ipic_sysclass = { - .name = "ipic", +static struct syscore_ops ipic_syscore_ops = { .suspend = ipic_suspend, .resume = ipic_resume, }; -static struct sys_device device_ipic = { - .id = 0, - .cls = &ipic_sysclass, -}; - -static int __init init_ipic_sysfs(void) +static int __init init_ipic_syscore(void) { - int rc; - if (!primary_ipic || !primary_ipic->regs) return -ENODEV; - printk(KERN_DEBUG "Registering ipic with sysfs...\n"); - rc = sysdev_class_register(&ipic_sysclass); - if (rc) { - printk(KERN_ERR "Failed registering ipic sys class\n"); - return -ENODEV; - } - rc = sysdev_register(&device_ipic); - if (rc) { - printk(KERN_ERR "Failed registering ipic sys device\n"); - return -ENODEV; - } + printk(KERN_DEBUG "Registering ipic system core operations\n"); + register_syscore_ops(&ipic_syscore_ops); + return 0; } -subsys_initcall(init_ipic_sysfs); +subsys_initcall(init_ipic_syscore); diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c index f91c065bed5..7e5dc8f4984 100644 --- a/arch/powerpc/sysdev/mpic.c +++ b/arch/powerpc/sysdev/mpic.c @@ -27,6 +27,7 @@ #include <linux/spinlock.h> #include <linux/pci.h> #include <linux/slab.h> +#include <linux/syscore_ops.h> #include <asm/ptrace.h> #include <asm/signal.h> @@ -1702,9 +1703,8 @@ void mpic_reset_core(int cpu) #endif /* CONFIG_SMP */ #ifdef CONFIG_PM -static int mpic_suspend(struct sys_device *dev, pm_message_t state) +static void mpic_suspend_one(struct mpic *mpic) { - struct mpic *mpic = container_of(dev, struct mpic, sysdev); int i; for (i = 0; i < mpic->num_sources; i++) { @@ -1713,13 +1713,22 @@ static int mpic_suspend(struct sys_device *dev, pm_message_t state) mpic->save_data[i].dest = mpic_irq_read(i, MPIC_INFO(IRQ_DESTINATION)); } +} + +static int mpic_suspend(void) +{ + struct mpic *mpic = mpics; + + while (mpic) { + mpic_suspend_one(mpic); + mpic = mpic->next; + } return 0; } -static int mpic_resume(struct sys_device *dev) +static void mpic_resume_one(struct mpic *mpic) { - struct mpic *mpic = container_of(dev, struct mpic, sysdev); int i; for (i = 0; i < mpic->num_sources; i++) { @@ -1746,33 +1755,28 @@ static int mpic_resume(struct sys_device *dev) } #endif } /* end for loop */ +} - return 0; +static void mpic_resume(void) +{ + struct mpic *mpic = mpics; + + while (mpic) { + mpic_resume_one(mpic); + mpic = mpic->next; + } } -#endif -static struct sysdev_class mpic_sysclass = { -#ifdef CONFIG_PM +static struct syscore_ops mpic_syscore_ops = { .resume = mpic_resume, .suspend = mpic_suspend, -#endif - .name = "mpic", }; static int mpic_init_sys(void) { - struct mpic *mpic = mpics; - int error, id = 0; - - error = sysdev_class_register(&mpic_sysclass); - - while (mpic && !error) { - mpic->sysdev.cls = &mpic_sysclass; - mpic->sysdev.id = id++; - error = sysdev_register(&mpic->sysdev); - mpic = mpic->next; - } - return error; + register_syscore_ops(&mpic_syscore_ops); + return 0; } device_initcall(mpic_init_sys); +#endif diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 2508a6f3158..4a7f14079e0 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -88,6 +88,7 @@ config S390 select HAVE_KERNEL_XZ select HAVE_GET_USER_PAGES_FAST select HAVE_ARCH_MUTEX_CPU_RELAX + select HAVE_ARCH_JUMP_LABEL if !MARCH_G5 select ARCH_INLINE_SPIN_TRYLOCK select ARCH_INLINE_SPIN_TRYLOCK_BH select ARCH_INLINE_SPIN_LOCK diff --git a/arch/s390/include/asm/cacheflush.h b/arch/s390/include/asm/cacheflush.h index 43a5c78046d..3e20383d092 100644 --- a/arch/s390/include/asm/cacheflush.h +++ b/arch/s390/include/asm/cacheflush.h @@ -11,5 +11,6 @@ void kernel_map_pages(struct page *page, int numpages, int enable); int set_memory_ro(unsigned long addr, int numpages); int set_memory_rw(unsigned long addr, int numpages); int set_memory_nx(unsigned long addr, int numpages); +int set_memory_x(unsigned long addr, int numpages); #endif /* _S390_CACHEFLUSH_H */ diff --git a/arch/s390/include/asm/diag.h b/arch/s390/include/asm/diag.h index 72b2e2f2d32..7e91c58072e 100644 --- a/arch/s390/include/asm/diag.h +++ b/arch/s390/include/asm/diag.h @@ -9,9 +9,22 @@ #define _ASM_S390_DIAG_H /* - * Diagnose 10: Release pages + * Diagnose 10: Release page range */ -extern void diag10(unsigned long addr); +static inline void diag10_range(unsigned long start_pfn, unsigned long num_pfn) +{ + unsigned long start_addr, end_addr; + + start_addr = start_pfn << PAGE_SHIFT; + end_addr = (start_pfn + num_pfn - 1) << PAGE_SHIFT; + + asm volatile( + "0: diag %0,%1,0x10\n" + "1:\n" + EX_TABLE(0b, 1b) + EX_TABLE(1b, 1b) + : : "a" (start_addr), "a" (end_addr)); +} /* * Diagnose 14: Input spool file manipulation diff --git a/arch/s390/include/asm/ftrace.h b/arch/s390/include/asm/ftrace.h index 3c29be4836e..b7931faaef6 100644 --- a/arch/s390/include/asm/ftrace.h +++ b/arch/s390/include/asm/ftrace.h @@ -11,15 +11,13 @@ struct dyn_arch_ftrace { }; #ifdef CONFIG_64BIT #define MCOUNT_INSN_SIZE 12 -#define MCOUNT_OFFSET 8 #else #define MCOUNT_INSN_SIZE 20 -#define MCOUNT_OFFSET 4 #endif static inline unsigned long ftrace_call_adjust(unsigned long addr) { - return addr - MCOUNT_OFFSET; + return addr; } #endif /* __ASSEMBLY__ */ diff --git a/arch/s390/include/asm/jump_label.h b/arch/s390/include/asm/jump_label.h new file mode 100644 index 00000000000..95a6cf2b5b6 --- /dev/null +++ b/arch/s390/include/asm/jump_label.h @@ -0,0 +1,37 @@ +#ifndef _ASM_S390_JUMP_LABEL_H +#define _ASM_S390_JUMP_LABEL_H + +#include <linux/types.h> + +#define JUMP_LABEL_NOP_SIZE 6 + +#ifdef CONFIG_64BIT +#define ASM_PTR ".quad" +#define ASM_ALIGN ".balign 8" +#else +#define ASM_PTR ".long" +#define ASM_ALIGN ".balign 4" +#endif + +static __always_inline bool arch_static_branch(struct jump_label_key *key) +{ + asm goto("0: brcl 0,0\n" + ".pushsection __jump_table, \"aw\"\n" + ASM_ALIGN "\n" + ASM_PTR " 0b, %l[label], %0\n" + ".popsection\n" + : : "X" (key) : : label); + return false; +label: + return true; +} + +typedef unsigned long jump_label_t; + +struct jump_entry { + jump_label_t code; + jump_label_t target; + jump_label_t key; +}; + +#endif diff --git a/arch/s390/include/asm/mmu_context.h b/arch/s390/include/asm/mmu_context.h index a6f0e7cc9cd..8c277caa8d3 100644 --- a/arch/s390/include/asm/mmu_context.h +++ b/arch/s390/include/asm/mmu_context.h @@ -23,7 +23,7 @@ static inline int init_new_context(struct task_struct *tsk, #ifdef CONFIG_64BIT mm->context.asce_bits |= _ASCE_TYPE_REGION3; #endif - if (current->mm->context.alloc_pgste) { + if (current->mm && current->mm->context.alloc_pgste) { /* * alloc_pgste indicates, that any NEW context will be created * with extended page tables. The old context is unchanged. The diff --git a/arch/s390/kernel/Makefile b/arch/s390/kernel/Makefile index 64230bc392f..5ff15dacb57 100644 --- a/arch/s390/kernel/Makefile +++ b/arch/s390/kernel/Makefile @@ -23,7 +23,7 @@ CFLAGS_sysinfo.o += -Iinclude/math-emu -Iarch/s390/math-emu -w obj-y := bitmap.o traps.o time.o process.o base.o early.o setup.o \ processor.o sys_s390.o ptrace.o signal.o cpcmd.o ebcdic.o \ s390_ext.o debug.o irq.o ipl.o dis.o diag.o mem_detect.o \ - vdso.o vtime.o sysinfo.o nmi.o sclp.o + vdso.o vtime.o sysinfo.o nmi.o sclp.o jump_label.o obj-y += $(if $(CONFIG_64BIT),entry64.o,entry.o) obj-y += $(if $(CONFIG_64BIT),reipl64.o,reipl.o) diff --git a/arch/s390/kernel/diag.c b/arch/s390/kernel/diag.c index c032d11da8a..8237fc07ac7 100644 --- a/arch/s390/kernel/diag.c +++ b/arch/s390/kernel/diag.c @@ -9,27 +9,6 @@ #include <asm/diag.h> /* - * Diagnose 10: Release pages - */ -void diag10(unsigned long addr) -{ - if (addr >= 0x7ff00000) - return; - asm volatile( -#ifdef CONFIG_64BIT - " sam31\n" - " diag %0,%0,0x10\n" - "0: sam64\n" -#else - " diag %0,%0,0x10\n" - "0:\n" -#endif - EX_TABLE(0b, 0b) - : : "a" (addr)); -} -EXPORT_SYMBOL(diag10); - -/* * Diagnose 14: Input spool file manipulation */ int diag14(unsigned long rx, unsigned long ry1, unsigned long subcode) diff --git a/arch/s390/kernel/dis.c b/arch/s390/kernel/dis.c index c83726c9fe0..3d4a78fc1ad 100644 --- a/arch/s390/kernel/dis.c +++ b/arch/s390/kernel/dis.c @@ -672,6 +672,7 @@ static struct insn opcode_b2[] = { { "rp", 0x77, INSTR_S_RD }, { "stcke", 0x78, INSTR_S_RD }, { "sacf", 0x79, INSTR_S_RD }, + { "spp", 0x80, INSTR_S_RD }, { "stsi", 0x7d, INSTR_S_RD }, { "srnm", 0x99, INSTR_S_RD }, { "stfpc", 0x9c, INSTR_S_RD }, diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S index 648f64239a9..1b67fc6ebdc 100644 --- a/arch/s390/kernel/entry.S +++ b/arch/s390/kernel/entry.S @@ -836,7 +836,7 @@ restart_base: stosm __SF_EMPTY(%r15),0x04 # now we can turn dat on basr %r14,0 l %r14,restart_addr-.(%r14) - br %r14 # branch to start_secondary + basr %r14,%r14 # branch to start_secondary restart_addr: .long start_secondary .align 8 diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S index 9d3603d6c51..9fd86456349 100644 --- a/arch/s390/kernel/entry64.S +++ b/arch/s390/kernel/entry64.S @@ -841,7 +841,7 @@ restart_base: mvc __LC_SYSTEM_TIMER(8),__TI_system_timer(%r1) xc __LC_STEAL_TIMER(8),__LC_STEAL_TIMER stosm __SF_EMPTY(%r15),0x04 # now we can turn dat on - jg start_secondary + brasl %r14,start_secondary .align 8 restart_vtime: .long 0x7fffffff,0xffffffff diff --git a/arch/s390/kernel/jump_label.c b/arch/s390/kernel/jump_label.c new file mode 100644 index 00000000000..44cc06bedf7 --- /dev/null +++ b/arch/s390/kernel/jump_label.c @@ -0,0 +1,59 @@ +/* + * Jump label s390 support + * + * Copyright IBM Corp. 2011 + * Author(s): Jan Glauber <jang@linux.vnet.ibm.com> + */ +#include <linux/module.h> +#include <linux/uaccess.h> +#include <linux/stop_machine.h> +#include <linux/jump_label.h> +#include <asm/ipl.h> + +#ifdef HAVE_JUMP_LABEL + +struct insn { + u16 opcode; + s32 offset; +} __packed; + +struct insn_args { + unsigned long *target; + struct insn *insn; + ssize_t size; +}; + +static int __arch_jump_label_transform(void *data) +{ + struct insn_args *args = data; + int rc; + + rc = probe_kernel_write(args->target, args->insn, args->size); + WARN_ON_ONCE(rc < 0); + return 0; +} + +void arch_jump_label_transform(struct jump_entry *entry, + enum jump_label_type type) +{ + struct insn_args args; + struct insn insn; + + if (type == JUMP_LABEL_ENABLE) { + /* brcl 15,offset */ + insn.opcode = 0xc0f4; + insn.offset = (entry->target - entry->code) >> 1; + } else { + /* brcl 0,0 */ + insn.opcode = 0xc004; + insn.offset = 0; + } + + args.target = (void *) entry->code; + args.insn = &insn; + args.size = JUMP_LABEL_NOP_SIZE; + + stop_machine(__arch_jump_label_transform, &args, NULL); +} + +#endif diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index 63a97db83f9..63c7d9ff220 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -165,12 +165,12 @@ static void do_ext_call_interrupt(unsigned int ext_int_code, kstat_cpu(smp_processor_id()).irqs[EXTINT_IPI]++; /* * handle bit signal external calls - * - * For the ec_schedule signal we have to do nothing. All the work - * is done automatically when we return from the interrupt. */ bits = xchg(&S390_lowcore.ext_call_fast, 0); + if (test_bit(ec_schedule, &bits)) + scheduler_ipi(); + if (test_bit(ec_call_function, &bits)) generic_smp_call_function_interrupt(); diff --git a/arch/s390/mm/cmm.c b/arch/s390/mm/cmm.c index c66ffd8dbbb..1f1dba9dcf5 100644 --- a/arch/s390/mm/cmm.c +++ b/arch/s390/mm/cmm.c @@ -91,7 +91,7 @@ static long cmm_alloc_pages(long nr, long *counter, } else free_page((unsigned long) npa); } - diag10(addr); + diag10_range(addr >> PAGE_SHIFT, 1); pa->pages[pa->index++] = addr; (*counter)++; spin_unlock(&cmm_lock); diff --git a/arch/s390/mm/pageattr.c b/arch/s390/mm/pageattr.c index 0607e4b14b2..f05edcc3bef 100644 --- a/arch/s390/mm/pageattr.c +++ b/arch/s390/mm/pageattr.c @@ -54,3 +54,8 @@ int set_memory_nx(unsigned long addr, int numpages) return 0; } EXPORT_SYMBOL_GPL(set_memory_nx); + +int set_memory_x(unsigned long addr, int numpages) +{ + return 0; +} diff --git a/arch/s390/oprofile/hwsampler.c b/arch/s390/oprofile/hwsampler.c index 4952872d6f0..33cbd373cce 100644 --- a/arch/s390/oprofile/hwsampler.c +++ b/arch/s390/oprofile/hwsampler.c @@ -1021,20 +1021,14 @@ deallocate_exit: return rc; } -long hwsampler_query_min_interval(void) +unsigned long hwsampler_query_min_interval(void) { - if (min_sampler_rate) - return min_sampler_rate; - else - return -EINVAL; + return min_sampler_rate; } -long hwsampler_query_max_interval(void) +unsigned long hwsampler_query_max_interval(void) { - if (max_sampler_rate) - return max_sampler_rate; - else - return -EINVAL; + return max_sampler_rate; } unsigned long hwsampler_get_sample_overflow_count(unsigned int cpu) diff --git a/arch/s390/oprofile/hwsampler.h b/arch/s390/oprofile/hwsampler.h index 8c72b59316b..1912f3bb190 100644 --- a/arch/s390/oprofile/hwsampler.h +++ b/arch/s390/oprofile/hwsampler.h @@ -102,8 +102,8 @@ int hwsampler_setup(void); int hwsampler_shutdown(void); int hwsampler_allocate(unsigned long sdbt, unsigned long sdb); int hwsampler_deallocate(void); -long hwsampler_query_min_interval(void); -long hwsampler_query_max_interval(void); +unsigned long hwsampler_query_min_interval(void); +unsigned long hwsampler_query_max_interval(void); int hwsampler_start_all(unsigned long interval); int hwsampler_stop_all(void); int hwsampler_deactivate(unsigned int cpu); diff --git a/arch/s390/oprofile/init.c b/arch/s390/oprofile/init.c index c63d7e58352..5995e9bc72d 100644 --- a/arch/s390/oprofile/init.c +++ b/arch/s390/oprofile/init.c @@ -145,15 +145,11 @@ static int oprofile_hwsampler_init(struct oprofile_operations *ops) * create hwsampler files only if hwsampler_setup() succeeds. */ oprofile_min_interval = hwsampler_query_min_interval(); - if (oprofile_min_interval < 0) { - oprofile_min_interval = 0; + if (oprofile_min_interval == 0) return -ENODEV; - } oprofile_max_interval = hwsampler_query_max_interval(); - if (oprofile_max_interval < 0) { - oprofile_max_interval = 0; + if (oprofile_max_interval == 0) return -ENODEV; - } if (oprofile_timer_init(ops)) return -ENODEV; diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index 4b89da248d1..bc439de48cd 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -24,7 +24,6 @@ config SUPERH select RTC_LIB select GENERIC_ATOMIC64 select GENERIC_IRQ_SHOW - select ARCH_NO_SYSDEV_OPS help The SuperH is a RISC processor targeted for use in embedded systems and consumer electronics; it was also used in the Sega Dreamcast diff --git a/arch/sh/configs/apsh4ad0a_defconfig b/arch/sh/configs/apsh4ad0a_defconfig index e71a531f1e3..77ec0e7b8dd 100644 --- a/arch/sh/configs/apsh4ad0a_defconfig +++ b/arch/sh/configs/apsh4ad0a_defconfig @@ -48,7 +48,6 @@ CONFIG_PREEMPT=y CONFIG_BINFMT_MISC=y CONFIG_PM=y CONFIG_PM_DEBUG=y -CONFIG_PM_VERBOSE=y CONFIG_PM_RUNTIME=y CONFIG_CPU_IDLE=y CONFIG_NET=y diff --git a/arch/sh/configs/sdk7786_defconfig b/arch/sh/configs/sdk7786_defconfig index dc4a2eb6a61..c41650572d7 100644 --- a/arch/sh/configs/sdk7786_defconfig +++ b/arch/sh/configs/sdk7786_defconfig @@ -83,7 +83,6 @@ CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y CONFIG_BINFMT_MISC=y CONFIG_PM=y CONFIG_PM_DEBUG=y -CONFIG_PM_VERBOSE=y CONFIG_PM_RUNTIME=y CONFIG_CPU_IDLE=y CONFIG_NET=y diff --git a/arch/sh/kernel/cpu/shmobile/pm_runtime.c b/arch/sh/kernel/cpu/shmobile/pm_runtime.c index 6dcb8166a64..22db127afa7 100644 --- a/arch/sh/kernel/cpu/shmobile/pm_runtime.c +++ b/arch/sh/kernel/cpu/shmobile/pm_runtime.c @@ -139,7 +139,7 @@ void platform_pm_runtime_suspend_idle(void) queue_work(pm_wq, &hwblk_work); } -int platform_pm_runtime_suspend(struct device *dev) +static int default_platform_runtime_suspend(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); struct pdev_archdata *ad = &pdev->archdata; @@ -147,7 +147,7 @@ int platform_pm_runtime_suspend(struct device *dev) int hwblk = ad->hwblk_id; int ret = 0; - dev_dbg(dev, "platform_pm_runtime_suspend() [%d]\n", hwblk); + dev_dbg(dev, "%s() [%d]\n", __func__, hwblk); /* ignore off-chip platform devices */ if (!hwblk) @@ -183,20 +183,20 @@ int platform_pm_runtime_suspend(struct device *dev) mutex_unlock(&ad->mutex); out: - dev_dbg(dev, "platform_pm_runtime_suspend() [%d] returns %d\n", - hwblk, ret); + dev_dbg(dev, "%s() [%d] returns %d\n", + __func__, hwblk, ret); return ret; } -int platform_pm_runtime_resume(struct device *dev) +static int default_platform_runtime_resume(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); struct pdev_archdata *ad = &pdev->archdata; int hwblk = ad->hwblk_id; int ret = 0; - dev_dbg(dev, "platform_pm_runtime_resume() [%d]\n", hwblk); + dev_dbg(dev, "%s() [%d]\n", __func__, hwblk); /* ignore off-chip platform devices */ if (!hwblk) @@ -228,19 +228,19 @@ int platform_pm_runtime_resume(struct device *dev) */ mutex_unlock(&ad->mutex); out: - dev_dbg(dev, "platform_pm_runtime_resume() [%d] returns %d\n", - hwblk, ret); + dev_dbg(dev, "%s() [%d] returns %d\n", + __func__, hwblk, ret); return ret; } -int platform_pm_runtime_idle(struct device *dev) +static int default_platform_runtime_idle(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); int hwblk = pdev->archdata.hwblk_id; int ret = 0; - dev_dbg(dev, "platform_pm_runtime_idle() [%d]\n", hwblk); + dev_dbg(dev, "%s() [%d]\n", __func__, hwblk); /* ignore off-chip platform devices */ if (!hwblk) @@ -252,10 +252,19 @@ int platform_pm_runtime_idle(struct device *dev) /* suspend synchronously to disable clocks immediately */ ret = pm_runtime_suspend(dev); out: - dev_dbg(dev, "platform_pm_runtime_idle() [%d] done!\n", hwblk); + dev_dbg(dev, "%s() [%d] done!\n", __func__, hwblk); return ret; } +static struct dev_power_domain default_power_domain = { + .ops = { + .runtime_suspend = default_platform_runtime_suspend, + .runtime_resume = default_platform_runtime_resume, + .runtime_idle = default_platform_runtime_idle, + USE_PLATFORM_PM_SLEEP_OPS + }, +}; + static int platform_bus_notify(struct notifier_block *nb, unsigned long action, void *data) { @@ -276,6 +285,7 @@ static int platform_bus_notify(struct notifier_block *nb, hwblk_disable(hwblk_info, hwblk); /* make sure driver re-inits itself once */ __set_bit(PDEV_ARCHDATA_FLAG_INIT, &pdev->archdata.flags); + dev->pwr_domain = &default_power_domain; break; /* TODO: add BUS_NOTIFY_BIND_DRIVER and increase idle count */ case BUS_NOTIFY_BOUND_DRIVER: @@ -289,6 +299,7 @@ static int platform_bus_notify(struct notifier_block *nb, __set_bit(PDEV_ARCHDATA_FLAG_INIT, &pdev->archdata.flags); break; case BUS_NOTIFY_DEL_DEVICE: + dev->pwr_domain = NULL; break; } return 0; diff --git a/arch/sh/kernel/ptrace_32.c b/arch/sh/kernel/ptrace_32.c index 2130ca674e9..3d7b209b217 100644 --- a/arch/sh/kernel/ptrace_32.c +++ b/arch/sh/kernel/ptrace_32.c @@ -117,7 +117,11 @@ void user_enable_single_step(struct task_struct *child) set_tsk_thread_flag(child, TIF_SINGLESTEP); + if (ptrace_get_breakpoints(child) < 0) + return; + set_single_step(child, pc); + ptrace_put_breakpoints(child); } void user_disable_single_step(struct task_struct *child) diff --git a/arch/sh/kernel/smp.c b/arch/sh/kernel/smp.c index 509b36b4511..6207561ea34 100644 --- a/arch/sh/kernel/smp.c +++ b/arch/sh/kernel/smp.c @@ -20,6 +20,7 @@ #include <linux/module.h> #include <linux/cpu.h> #include <linux/interrupt.h> +#include <linux/sched.h> #include <asm/atomic.h> #include <asm/processor.h> #include <asm/system.h> @@ -323,6 +324,7 @@ void smp_message_recv(unsigned int msg) generic_smp_call_function_interrupt(); break; case SMP_MSG_RESCHEDULE: + scheduler_ipi(); break; case SMP_MSG_FUNCTION_SINGLE: generic_smp_call_function_single_interrupt(); diff --git a/arch/sparc/include/asm/jump_label.h b/arch/sparc/include/asm/jump_label.h index 427d4684e0d..fc73a82366f 100644 --- a/arch/sparc/include/asm/jump_label.h +++ b/arch/sparc/include/asm/jump_label.h @@ -7,17 +7,20 @@ #define JUMP_LABEL_NOP_SIZE 4 -#define JUMP_LABEL(key, label) \ - do { \ - asm goto("1:\n\t" \ - "nop\n\t" \ - "nop\n\t" \ - ".pushsection __jump_table, \"a\"\n\t"\ - ".align 4\n\t" \ - ".word 1b, %l[" #label "], %c0\n\t" \ - ".popsection \n\t" \ - : : "i" (key) : : label);\ - } while (0) +static __always_inline bool arch_static_branch(struct jump_label_key *key) +{ + asm goto("1:\n\t" + "nop\n\t" + "nop\n\t" + ".pushsection __jump_table, \"aw\"\n\t" + ".align 4\n\t" + ".word 1b, %l[l_yes], %c0\n\t" + ".popsection \n\t" + : : "i" (key) : : l_yes); + return false; +l_yes: + return true; +} #endif /* __KERNEL__ */ diff --git a/arch/sparc/include/asm/topology_64.h b/arch/sparc/include/asm/topology_64.h index 1c79f32734a..8b9c556d630 100644 --- a/arch/sparc/include/asm/topology_64.h +++ b/arch/sparc/include/asm/topology_64.h @@ -65,6 +65,10 @@ static inline int pcibus_to_node(struct pci_bus *pbus) #define smt_capable() (sparc64_multi_core) #endif /* CONFIG_SMP */ -#define cpu_coregroup_mask(cpu) (&cpu_core_map[cpu]) +extern cpumask_t cpu_core_map[NR_CPUS]; +static inline const struct cpumask *cpu_coregroup_mask(int cpu) +{ + return &cpu_core_map[cpu]; +} #endif /* _ASM_SPARC64_TOPOLOGY_H */ diff --git a/arch/sparc/kernel/apc.c b/arch/sparc/kernel/apc.c index f679c57644d..1e34f29e58b 100644 --- a/arch/sparc/kernel/apc.c +++ b/arch/sparc/kernel/apc.c @@ -165,7 +165,7 @@ static int __devinit apc_probe(struct platform_device *op) return 0; } -static struct of_device_id __initdata apc_match[] = { +static struct of_device_id apc_match[] = { { .name = APC_OBPNAME, }, diff --git a/arch/sparc/kernel/pci_sabre.c b/arch/sparc/kernel/pci_sabre.c index 948068a083f..d1840dbdaa2 100644 --- a/arch/sparc/kernel/pci_sabre.c +++ b/arch/sparc/kernel/pci_sabre.c @@ -452,8 +452,10 @@ static void __devinit sabre_pbm_init(struct pci_pbm_info *pbm, sabre_scan_bus(pbm, &op->dev); } +static const struct of_device_id sabre_match[]; static int __devinit sabre_probe(struct platform_device *op) { + const struct of_device_id *match; const struct linux_prom64_registers *pr_regs; struct device_node *dp = op->dev.of_node; struct pci_pbm_info *pbm; @@ -463,7 +465,8 @@ static int __devinit sabre_probe(struct platform_device *op) const u32 *vdma; u64 clear_irq; - hummingbird_p = op->dev.of_match && (op->dev.of_match->data != NULL); + match = of_match_device(sabre_match, &op->dev); + hummingbird_p = match && (match->data != NULL); if (!hummingbird_p) { struct device_node *cpu_dp; diff --git a/arch/sparc/kernel/pci_schizo.c b/arch/sparc/kernel/pci_schizo.c index fecfcb2063c..283fbc329a4 100644 --- a/arch/sparc/kernel/pci_schizo.c +++ b/arch/sparc/kernel/pci_schizo.c @@ -1458,11 +1458,15 @@ out_err: return err; } +static const struct of_device_id schizo_match[]; static int __devinit schizo_probe(struct platform_device *op) { - if (!op->dev.of_match) + const struct of_device_id *match; + + match = of_match_device(schizo_match, &op->dev); + if (!match) return -EINVAL; - return __schizo_init(op, (unsigned long) op->dev.of_match->data); + return __schizo_init(op, (unsigned long)match->data); } /* The ordering of this table is very important. Some Tomatillo diff --git a/arch/sparc/kernel/pmc.c b/arch/sparc/kernel/pmc.c index 93d7b4465f8..6a585d39358 100644 --- a/arch/sparc/kernel/pmc.c +++ b/arch/sparc/kernel/pmc.c @@ -69,7 +69,7 @@ static int __devinit pmc_probe(struct platform_device *op) return 0; } -static struct of_device_id __initdata pmc_match[] = { +static struct of_device_id pmc_match[] = { { .name = PMC_OBPNAME, }, diff --git a/arch/sparc/kernel/smp_32.c b/arch/sparc/kernel/smp_32.c index 91c10fb7085..442286d8343 100644 --- a/arch/sparc/kernel/smp_32.c +++ b/arch/sparc/kernel/smp_32.c @@ -53,6 +53,7 @@ cpumask_t smp_commenced_mask = CPU_MASK_NONE; void __cpuinit smp_store_cpu_info(int id) { int cpu_node; + int mid; cpu_data(id).udelay_val = loops_per_jiffy; @@ -60,10 +61,13 @@ void __cpuinit smp_store_cpu_info(int id) cpu_data(id).clock_tick = prom_getintdefault(cpu_node, "clock-frequency", 0); cpu_data(id).prom_node = cpu_node; - cpu_data(id).mid = cpu_get_hwmid(cpu_node); + mid = cpu_get_hwmid(cpu_node); - if (cpu_data(id).mid < 0) - panic("No MID found for CPU%d at node 0x%08d", id, cpu_node); + if (mid < 0) { + printk(KERN_NOTICE "No MID found for CPU%d at node 0x%08d", id, cpu_node); + mid = 0; + } + cpu_data(id).mid = mid; } void __init smp_cpus_done(unsigned int max_cpus) @@ -125,7 +129,9 @@ struct linux_prom_registers smp_penguin_ctable __cpuinitdata = { 0 }; void smp_send_reschedule(int cpu) { - /* See sparc64 */ + /* + * XXX missing reschedule IPI, see scheduler_ipi() + */ } void smp_send_stop(void) diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c index 3e94a8c2323..9478da7fdb3 100644 --- a/arch/sparc/kernel/smp_64.c +++ b/arch/sparc/kernel/smp_64.c @@ -1368,6 +1368,7 @@ void smp_send_reschedule(int cpu) void __irq_entry smp_receive_signal_client(int irq, struct pt_regs *regs) { clear_softint(1 << irq); + scheduler_ipi(); } /* This is a nop because we capture all other cpus diff --git a/arch/sparc/kernel/time_32.c b/arch/sparc/kernel/time_32.c index 4e236391b63..96046a4024c 100644 --- a/arch/sparc/kernel/time_32.c +++ b/arch/sparc/kernel/time_32.c @@ -168,7 +168,7 @@ static int __devinit clock_probe(struct platform_device *op) return 0; } -static struct of_device_id __initdata clock_match[] = { +static struct of_device_id clock_match[] = { { .name = "eeprom", }, diff --git a/arch/sparc/lib/checksum_32.S b/arch/sparc/lib/checksum_32.S index 3632cb34e91..0084c3361e1 100644 --- a/arch/sparc/lib/checksum_32.S +++ b/arch/sparc/lib/checksum_32.S @@ -289,10 +289,16 @@ cc_end_cruft: /* Also, handle the alignment code out of band. */ cc_dword_align: - cmp %g1, 6 - bl,a ccte + cmp %g1, 16 + bge 1f + srl %g1, 1, %o3 +2: cmp %o3, 0 + be,a ccte andcc %g1, 0xf, %o3 - andcc %o0, 0x1, %g0 + andcc %o3, %o0, %g0 ! Check %o0 only (%o1 has the same last 2 bits) + be,a 2b + srl %o3, 1, %o3 +1: andcc %o0, 0x1, %g0 bne ccslow andcc %o0, 0x2, %g0 be 1f diff --git a/arch/tile/kernel/smp.c b/arch/tile/kernel/smp.c index a4293102ef8..c52224d5ed4 100644 --- a/arch/tile/kernel/smp.c +++ b/arch/tile/kernel/smp.c @@ -189,12 +189,8 @@ void flush_icache_range(unsigned long start, unsigned long end) /* Called when smp_send_reschedule() triggers IRQ_RESCHEDULE. */ static irqreturn_t handle_reschedule_ipi(int irq, void *token) { - /* - * Nothing to do here; when we return from interrupt, the - * rescheduling will occur there. But do bump the interrupt - * profiler count in the meantime. - */ __get_cpu_var(irq_stat).irq_resched_count++; + scheduler_ipi(); return IRQ_HANDLED; } diff --git a/arch/um/kernel/smp.c b/arch/um/kernel/smp.c index 106bf27e2a9..eefb107d2d7 100644 --- a/arch/um/kernel/smp.c +++ b/arch/um/kernel/smp.c @@ -173,7 +173,7 @@ void IPI_handler(int cpu) break; case 'R': - set_tsk_need_resched(current); + scheduler_ipi(); break; case 'S': diff --git a/arch/um/os-Linux/util.c b/arch/um/os-Linux/util.c index 6ea77979531..42827cafa6a 100644 --- a/arch/um/os-Linux/util.c +++ b/arch/um/os-Linux/util.c @@ -5,6 +5,7 @@ #include <stdio.h> #include <stdlib.h> +#include <unistd.h> #include <errno.h> #include <signal.h> #include <string.h> @@ -75,6 +76,26 @@ void setup_hostinfo(char *buf, int len) host.release, host.version, host.machine); } +/* + * We cannot use glibc's abort(). It makes use of tgkill() which + * has no effect within UML's kernel threads. + * After that glibc would execute an invalid instruction to kill + * the calling process and UML crashes with SIGSEGV. + */ +static inline void __attribute__ ((noreturn)) uml_abort(void) +{ + sigset_t sig; + + fflush(NULL); + + if (!sigemptyset(&sig) && !sigaddset(&sig, SIGABRT)) + sigprocmask(SIG_UNBLOCK, &sig, 0); + + for (;;) + if (kill(getpid(), SIGABRT) < 0) + exit(127); +} + void os_dump_core(void) { int pid; @@ -116,5 +137,5 @@ void os_dump_core(void) while ((pid = waitpid(-1, NULL, WNOHANG | __WALL)) > 0) os_kill_ptraced_process(pid, 0); - abort(); + uml_abort(); } diff --git a/arch/unicore32/kernel/irq.c b/arch/unicore32/kernel/irq.c index 2aa30a364bb..d4efa7d679f 100644 --- a/arch/unicore32/kernel/irq.c +++ b/arch/unicore32/kernel/irq.c @@ -23,7 +23,7 @@ #include <linux/list.h> #include <linux/kallsyms.h> #include <linux/proc_fs.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/gpio.h> #include <asm/system.h> @@ -237,7 +237,7 @@ static struct puv3_irq_state { unsigned int iccr; } puv3_irq_state; -static int puv3_irq_suspend(struct sys_device *dev, pm_message_t state) +static int puv3_irq_suspend(void) { struct puv3_irq_state *st = &puv3_irq_state; @@ -265,7 +265,7 @@ static int puv3_irq_suspend(struct sys_device *dev, pm_message_t state) return 0; } -static int puv3_irq_resume(struct sys_device *dev) +static void puv3_irq_resume(void) { struct puv3_irq_state *st = &puv3_irq_state; @@ -278,27 +278,20 @@ static int puv3_irq_resume(struct sys_device *dev) writel(st->icmr, INTC_ICMR); } - return 0; } -static struct sysdev_class puv3_irq_sysclass = { - .name = "pkunity-irq", +static struct syscore_ops puv3_irq_syscore_ops = { .suspend = puv3_irq_suspend, .resume = puv3_irq_resume, }; -static struct sys_device puv3_irq_device = { - .id = 0, - .cls = &puv3_irq_sysclass, -}; - -static int __init puv3_irq_init_devicefs(void) +static int __init puv3_irq_init_syscore(void) { - sysdev_class_register(&puv3_irq_sysclass); - return sysdev_register(&puv3_irq_device); + register_syscore_ops(&puv3_irq_syscore_ops); + return 0; } -device_initcall(puv3_irq_init_devicefs); +device_initcall(puv3_irq_init_syscore); void __init init_IRQ(void) { diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index cc6c53a95bf..4168e5d8632 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -8,6 +8,7 @@ config 64BIT config X86_32 def_bool !64BIT + select CLKSRC_I8253 config X86_64 def_bool 64BIT @@ -71,7 +72,6 @@ config X86 select GENERIC_IRQ_SHOW select IRQ_FORCED_THREADING select USE_GENERIC_SMP_HELPERS if SMP - select ARCH_NO_SYSDEV_OPS config INSTRUCTION_DECODER def_bool (KPROBES || PERF_EVENTS) @@ -112,7 +112,14 @@ config MMU def_bool y config ZONE_DMA - def_bool y + bool "DMA memory allocation support" if EXPERT + default y + help + DMA memory allocation support allows devices with less than 32-bit + addressing to allocate within the first 16MB of address space. + Disable if no such devices will be used. + + If unsure, say Y. config SBUS bool @@ -365,17 +372,6 @@ config X86_UV # Following is an alphabetically sorted list of 32 bit extended platforms # Please maintain the alphabetic order if and when there are additions -config X86_ELAN - bool "AMD Elan" - depends on X86_32 - depends on X86_EXTENDED_PLATFORM - ---help--- - Select this for an AMD Elan processor. - - Do not use this option for K6/Athlon/Opteron processors! - - If unsure, choose "PC-compatible" instead. - config X86_INTEL_CE bool "CE4100 TV platform" depends on PCI @@ -690,6 +686,7 @@ config AMD_IOMMU bool "AMD IOMMU support" select SWIOTLB select PCI_MSI + select PCI_IOV depends on X86_64 && PCI && ACPI ---help--- With this option you can enable support for AMD IOMMU hardware in @@ -1174,7 +1171,7 @@ comment "NUMA (Summit) requires SMP, 64GB highmem support, ACPI" config AMD_NUMA def_bool y prompt "Old style AMD Opteron NUMA detection" - depends on X86_64 && NUMA && PCI + depends on NUMA && PCI ---help--- Enable AMD NUMA node topology detection. You should say Y here if you have a multi processor AMD system. This uses an old method to @@ -1201,7 +1198,7 @@ config NODES_SPAN_OTHER_NODES config NUMA_EMU bool "NUMA emulation" - depends on X86_64 && NUMA + depends on NUMA ---help--- Enable NUMA emulation. A flat machine will be split into virtual nodes when booted with "numa=fake=N", where N is the @@ -1223,6 +1220,10 @@ config HAVE_ARCH_BOOTMEM def_bool y depends on X86_32 && NUMA +config HAVE_ARCH_ALLOC_REMAP + def_bool y + depends on X86_32 && NUMA + config ARCH_HAVE_MEMORY_PRESENT def_bool y depends on X86_32 && DISCONTIGMEM @@ -1231,13 +1232,9 @@ config NEED_NODE_MEMMAP_SIZE def_bool y depends on X86_32 && (DISCONTIGMEM || SPARSEMEM) -config HAVE_ARCH_ALLOC_REMAP - def_bool y - depends on X86_32 && NUMA - config ARCH_FLATMEM_ENABLE def_bool y - depends on X86_32 && ARCH_SELECT_MEMORY_MODEL && !NUMA + depends on X86_32 && !NUMA config ARCH_DISCONTIGMEM_ENABLE def_bool y @@ -1247,20 +1244,16 @@ config ARCH_DISCONTIGMEM_DEFAULT def_bool y depends on NUMA && X86_32 -config ARCH_PROC_KCORE_TEXT - def_bool y - depends on X86_64 && PROC_KCORE - -config ARCH_SPARSEMEM_DEFAULT - def_bool y - depends on X86_64 - config ARCH_SPARSEMEM_ENABLE def_bool y depends on X86_64 || NUMA || (EXPERIMENTAL && X86_32) || X86_32_NON_STANDARD select SPARSEMEM_STATIC if X86_32 select SPARSEMEM_VMEMMAP_ENABLE if X86_64 +config ARCH_SPARSEMEM_DEFAULT + def_bool y + depends on X86_64 + config ARCH_SELECT_MEMORY_MODEL def_bool y depends on ARCH_SPARSEMEM_ENABLE @@ -1269,6 +1262,10 @@ config ARCH_MEMORY_PROBE def_bool X86_64 depends on MEMORY_HOTPLUG +config ARCH_PROC_KCORE_TEXT + def_bool y + depends on X86_64 && PROC_KCORE + config ILLEGAL_POINTER_VALUE hex default 0 if X86_32 @@ -1703,10 +1700,6 @@ config ARCH_ENABLE_MEMORY_HOTREMOVE def_bool y depends on MEMORY_HOTPLUG -config HAVE_ARCH_EARLY_PFN_TO_NID - def_bool X86_64 - depends on NUMA - config USE_PERCPU_NUMA_NODE_ID def_bool y depends on NUMA @@ -1848,7 +1841,7 @@ config APM_ALLOW_INTS endif # APM -source "arch/x86/kernel/cpu/cpufreq/Kconfig" +source "drivers/cpufreq/Kconfig" source "drivers/cpuidle/Kconfig" @@ -2076,7 +2069,7 @@ config OLPC depends on !X86_PAE select GPIOLIB select OF - select OF_PROMTREE if PROC_DEVICETREE + select OF_PROMTREE ---help--- Add support for detecting the unique features of the OLPC XO hardware. diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu index d161e939df6..6a7cfdf8ff6 100644 --- a/arch/x86/Kconfig.cpu +++ b/arch/x86/Kconfig.cpu @@ -1,6 +1,4 @@ # Put here option for CPU selection and depending optimization -if !X86_ELAN - choice prompt "Processor family" default M686 if X86_32 @@ -203,6 +201,14 @@ config MWINCHIP3D stores for this CPU, which can increase performance of some operations. +config MELAN + bool "AMD Elan" + depends on X86_32 + ---help--- + Select this for an AMD Elan processor. + + Do not use this option for K6/Athlon/Opteron processors! + config MGEODEGX1 bool "GeodeGX1" depends on X86_32 @@ -292,8 +298,6 @@ config X86_GENERIC This is really intended for distributors who need more generic optimizations. -endif - # # Define implied options from the CPU selection here config X86_INTERNODE_CACHE_SHIFT @@ -312,7 +316,7 @@ config X86_L1_CACHE_SHIFT int default "7" if MPENTIUM4 || MPSC default "6" if MK7 || MK8 || MPENTIUMM || MCORE2 || MATOM || MVIAC7 || X86_GENERIC || GENERIC_CPU - default "4" if X86_ELAN || M486 || M386 || MGEODEGX1 + default "4" if MELAN || M486 || M386 || MGEODEGX1 default "5" if MWINCHIP3D || MWINCHIPC6 || MCRUSOE || MEFFICEON || MCYRIXIII || MK6 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || M586 || MVIAC3_2 || MGEODE_LX config X86_XADD @@ -358,7 +362,7 @@ config X86_POPAD_OK config X86_ALIGNMENT_16 def_bool y - depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || X86_ELAN || MK6 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1 + depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || MELAN || MK6 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1 config X86_INTEL_USERCOPY def_bool y diff --git a/arch/x86/Makefile_32.cpu b/arch/x86/Makefile_32.cpu index f2ee1abb1df..86cee7b749e 100644 --- a/arch/x86/Makefile_32.cpu +++ b/arch/x86/Makefile_32.cpu @@ -37,7 +37,7 @@ cflags-$(CONFIG_MATOM) += $(call cc-option,-march=atom,$(call cc-option,-march= $(call cc-option,-mtune=atom,$(call cc-option,-mtune=generic)) # AMD Elan support -cflags-$(CONFIG_X86_ELAN) += -march=i486 +cflags-$(CONFIG_MELAN) += -march=i486 # Geode GX1 support cflags-$(CONFIG_MGEODEGX1) += -march=pentium-mmx diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h index 12e0e7dd869..416d865eae3 100644 --- a/arch/x86/include/asm/acpi.h +++ b/arch/x86/include/asm/acpi.h @@ -183,8 +183,6 @@ static inline void disable_acpi(void) { } #define ARCH_HAS_POWER_INIT 1 -struct bootnode; - #ifdef CONFIG_ACPI_NUMA extern int acpi_numa; extern int x86_acpi_numa_init(void); diff --git a/arch/x86/include/asm/alternative-asm.h b/arch/x86/include/asm/alternative-asm.h index a63a68be1cc..94d420b360d 100644 --- a/arch/x86/include/asm/alternative-asm.h +++ b/arch/x86/include/asm/alternative-asm.h @@ -15,4 +15,13 @@ .endm #endif +.macro altinstruction_entry orig alt feature orig_len alt_len + .align 8 + .quad \orig + .quad \alt + .word \feature + .byte \orig_len + .byte \alt_len +.endm + #endif /* __ASSEMBLY__ */ diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h index 13009d1af99..bf535f947e8 100644 --- a/arch/x86/include/asm/alternative.h +++ b/arch/x86/include/asm/alternative.h @@ -4,7 +4,6 @@ #include <linux/types.h> #include <linux/stddef.h> #include <linux/stringify.h> -#include <linux/jump_label.h> #include <asm/asm.h> /* @@ -191,12 +190,4 @@ extern void *text_poke(void *addr, const void *opcode, size_t len); extern void *text_poke_smp(void *addr, const void *opcode, size_t len); extern void text_poke_smp_batch(struct text_poke_param *params, int n); -#if defined(CONFIG_DYNAMIC_FTRACE) || defined(HAVE_JUMP_LABEL) -#define IDEAL_NOP_SIZE_5 5 -extern unsigned char ideal_nop5[IDEAL_NOP_SIZE_5]; -extern void arch_init_ideal_nop5(void); -#else -static inline void arch_init_ideal_nop5(void) {} -#endif - #endif /* _ASM_X86_ALTERNATIVE_H */ diff --git a/arch/x86/include/asm/amd_iommu_proto.h b/arch/x86/include/asm/amd_iommu_proto.h index 916bc8111a0..55d95eb789b 100644 --- a/arch/x86/include/asm/amd_iommu_proto.h +++ b/arch/x86/include/asm/amd_iommu_proto.h @@ -19,13 +19,12 @@ #ifndef _ASM_X86_AMD_IOMMU_PROTO_H #define _ASM_X86_AMD_IOMMU_PROTO_H -struct amd_iommu; +#include <asm/amd_iommu_types.h> extern int amd_iommu_init_dma_ops(void); extern int amd_iommu_init_passthrough(void); +extern irqreturn_t amd_iommu_int_thread(int irq, void *data); extern irqreturn_t amd_iommu_int_handler(int irq, void *data); -extern void amd_iommu_flush_all_domains(void); -extern void amd_iommu_flush_all_devices(void); extern void amd_iommu_apply_erratum_63(u16 devid); extern void amd_iommu_reset_cmd_buffer(struct amd_iommu *iommu); extern int amd_iommu_init_devices(void); @@ -44,4 +43,12 @@ static inline bool is_rd890_iommu(struct pci_dev *pdev) (pdev->device == PCI_DEVICE_ID_RD890_IOMMU); } +static inline bool iommu_feature(struct amd_iommu *iommu, u64 f) +{ + if (!(iommu->cap & (1 << IOMMU_CAP_EFR))) + return false; + + return !!(iommu->features & f); +} + #endif /* _ASM_X86_AMD_IOMMU_PROTO_H */ diff --git a/arch/x86/include/asm/amd_iommu_types.h b/arch/x86/include/asm/amd_iommu_types.h index e3509fc303b..4c998299541 100644 --- a/arch/x86/include/asm/amd_iommu_types.h +++ b/arch/x86/include/asm/amd_iommu_types.h @@ -68,12 +68,25 @@ #define MMIO_CONTROL_OFFSET 0x0018 #define MMIO_EXCL_BASE_OFFSET 0x0020 #define MMIO_EXCL_LIMIT_OFFSET 0x0028 +#define MMIO_EXT_FEATURES 0x0030 #define MMIO_CMD_HEAD_OFFSET 0x2000 #define MMIO_CMD_TAIL_OFFSET 0x2008 #define MMIO_EVT_HEAD_OFFSET 0x2010 #define MMIO_EVT_TAIL_OFFSET 0x2018 #define MMIO_STATUS_OFFSET 0x2020 + +/* Extended Feature Bits */ +#define FEATURE_PREFETCH (1ULL<<0) +#define FEATURE_PPR (1ULL<<1) +#define FEATURE_X2APIC (1ULL<<2) +#define FEATURE_NX (1ULL<<3) +#define FEATURE_GT (1ULL<<4) +#define FEATURE_IA (1ULL<<6) +#define FEATURE_GA (1ULL<<7) +#define FEATURE_HE (1ULL<<8) +#define FEATURE_PC (1ULL<<9) + /* MMIO status bits */ #define MMIO_STATUS_COM_WAIT_INT_MASK 0x04 @@ -113,7 +126,9 @@ /* command specific defines */ #define CMD_COMPL_WAIT 0x01 #define CMD_INV_DEV_ENTRY 0x02 -#define CMD_INV_IOMMU_PAGES 0x03 +#define CMD_INV_IOMMU_PAGES 0x03 +#define CMD_INV_IOTLB_PAGES 0x04 +#define CMD_INV_ALL 0x08 #define CMD_COMPL_WAIT_STORE_MASK 0x01 #define CMD_COMPL_WAIT_INT_MASK 0x02 @@ -215,6 +230,8 @@ #define IOMMU_PTE_IR (1ULL << 61) #define IOMMU_PTE_IW (1ULL << 62) +#define DTE_FLAG_IOTLB 0x01 + #define IOMMU_PAGE_MASK (((1ULL << 52) - 1) & ~0xfffULL) #define IOMMU_PTE_PRESENT(pte) ((pte) & IOMMU_PTE_P) #define IOMMU_PTE_PAGE(pte) (phys_to_virt((pte) & IOMMU_PAGE_MASK)) @@ -227,6 +244,7 @@ /* IOMMU capabilities */ #define IOMMU_CAP_IOTLB 24 #define IOMMU_CAP_NPCACHE 26 +#define IOMMU_CAP_EFR 27 #define MAX_DOMAIN_ID 65536 @@ -249,6 +267,8 @@ extern bool amd_iommu_dump; /* global flag if IOMMUs cache non-present entries */ extern bool amd_iommu_np_cache; +/* Only true if all IOMMUs support device IOTLBs */ +extern bool amd_iommu_iotlb_sup; /* * Make iterating over all IOMMUs easier @@ -371,6 +391,9 @@ struct amd_iommu { /* flags read from acpi table */ u8 acpi_flags; + /* Extended features */ + u64 features; + /* * Capability pointer. There could be more than one IOMMU per PCI * device function if there are more than one AMD IOMMU capability @@ -409,9 +432,6 @@ struct amd_iommu { /* if one, we need to send a completion wait command */ bool need_sync; - /* becomes true if a command buffer reset is running */ - bool reset_in_progress; - /* default dma_ops domain for that IOMMU */ struct dma_ops_domain *default_dom; diff --git a/arch/x86/include/asm/amd_nb.h b/arch/x86/include/asm/amd_nb.h index 331682231bb..67f87f25761 100644 --- a/arch/x86/include/asm/amd_nb.h +++ b/arch/x86/include/asm/amd_nb.h @@ -11,7 +11,6 @@ struct amd_nb_bus_dev_range { extern const struct pci_device_id amd_nb_misc_ids[]; extern const struct amd_nb_bus_dev_range amd_nb_bus_dev_ranges[]; -struct bootnode; extern bool early_is_amd_nb(u32 value); extern int amd_cache_northbridges(void); diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h index 2b7d573be54..a0c46f06121 100644 --- a/arch/x86/include/asm/apic.h +++ b/arch/x86/include/asm/apic.h @@ -363,7 +363,12 @@ struct apic { */ int (*x86_32_early_logical_apicid)(int cpu); - /* determine CPU -> NUMA node mapping */ + /* + * Optional method called from setup_local_APIC() after logical + * apicid is guaranteed to be known to initialize apicid -> node + * mapping if NUMA initialization hasn't done so already. Don't + * add new users. + */ int (*x86_32_numa_cpu_node)(int cpu); #endif }; @@ -537,8 +542,6 @@ static inline int default_phys_pkg_id(int cpuid_apic, int index_msb) return cpuid_apic >> index_msb; } -extern int default_x86_32_numa_cpu_node(int cpu); - #endif static inline unsigned int diff --git a/arch/x86/include/asm/apicdef.h b/arch/x86/include/asm/apicdef.h index d87988bacf3..34595d5e103 100644 --- a/arch/x86/include/asm/apicdef.h +++ b/arch/x86/include/asm/apicdef.h @@ -78,6 +78,7 @@ #define APIC_DEST_LOGICAL 0x00800 #define APIC_DEST_PHYSICAL 0x00000 #define APIC_DM_FIXED 0x00000 +#define APIC_DM_FIXED_MASK 0x00700 #define APIC_DM_LOWEST 0x00100 #define APIC_DM_SMI 0x00200 #define APIC_DM_REMRD 0x00300 diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h index 91f3e087cf2..5dc6acc98db 100644 --- a/arch/x86/include/asm/cpufeature.h +++ b/arch/x86/include/asm/cpufeature.h @@ -195,6 +195,8 @@ /* Intel-defined CPU features, CPUID level 0x00000007:0 (ebx), word 9 */ #define X86_FEATURE_FSGSBASE (9*32+ 0) /* {RD/WR}{FS/GS}BASE instructions*/ +#define X86_FEATURE_SMEP (9*32+ 7) /* Supervisor Mode Execution Protection */ +#define X86_FEATURE_ERMS (9*32+ 9) /* Enhanced REP MOVSB/STOSB */ #if defined(__KERNEL__) && !defined(__ASSEMBLY__) @@ -207,8 +209,7 @@ extern const char * const x86_power_flags[32]; #define test_cpu_cap(c, bit) \ test_bit(bit, (unsigned long *)((c)->x86_capability)) -#define cpu_has(c, bit) \ - (__builtin_constant_p(bit) && \ +#define REQUIRED_MASK_BIT_SET(bit) \ ( (((bit)>>5)==0 && (1UL<<((bit)&31) & REQUIRED_MASK0)) || \ (((bit)>>5)==1 && (1UL<<((bit)&31) & REQUIRED_MASK1)) || \ (((bit)>>5)==2 && (1UL<<((bit)&31) & REQUIRED_MASK2)) || \ @@ -218,10 +219,16 @@ extern const char * const x86_power_flags[32]; (((bit)>>5)==6 && (1UL<<((bit)&31) & REQUIRED_MASK6)) || \ (((bit)>>5)==7 && (1UL<<((bit)&31) & REQUIRED_MASK7)) || \ (((bit)>>5)==8 && (1UL<<((bit)&31) & REQUIRED_MASK8)) || \ - (((bit)>>5)==9 && (1UL<<((bit)&31) & REQUIRED_MASK9)) ) \ - ? 1 : \ + (((bit)>>5)==9 && (1UL<<((bit)&31) & REQUIRED_MASK9)) ) + +#define cpu_has(c, bit) \ + (__builtin_constant_p(bit) && REQUIRED_MASK_BIT_SET(bit) ? 1 : \ test_cpu_cap(c, bit)) +#define this_cpu_has(bit) \ + (__builtin_constant_p(bit) && REQUIRED_MASK_BIT_SET(bit) ? 1 : \ + x86_this_cpu_test_bit(bit, (unsigned long *)&cpu_info.x86_capability)) + #define boot_cpu_has(bit) cpu_has(&boot_cpu_data, bit) #define set_cpu_cap(c, bit) set_bit(bit, (unsigned long *)((c)->x86_capability)) diff --git a/arch/x86/include/asm/dma.h b/arch/x86/include/asm/dma.h index 057099e5fab..0bdb0c54d9a 100644 --- a/arch/x86/include/asm/dma.h +++ b/arch/x86/include/asm/dma.h @@ -69,22 +69,18 @@ #define MAX_DMA_CHANNELS 8 -#ifdef CONFIG_X86_32 - -/* The maximum address that we can perform a DMA transfer to on this platform */ -#define MAX_DMA_ADDRESS (PAGE_OFFSET + 0x1000000) - -#else - /* 16MB ISA DMA zone */ #define MAX_DMA_PFN ((16 * 1024 * 1024) >> PAGE_SHIFT) /* 4GB broken PCI/AGP hardware bus master zone */ #define MAX_DMA32_PFN ((4UL * 1024 * 1024 * 1024) >> PAGE_SHIFT) +#ifdef CONFIG_X86_32 +/* The maximum address that we can perform a DMA transfer to on this platform */ +#define MAX_DMA_ADDRESS (PAGE_OFFSET + 0x1000000) +#else /* Compat define for old dma zone */ #define MAX_DMA_ADDRESS ((unsigned long)__va(MAX_DMA_PFN << PAGE_SHIFT)) - #endif /* 8237 DMA controllers */ diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h index 8e4a16508d4..7093e4a6a0b 100644 --- a/arch/x86/include/asm/efi.h +++ b/arch/x86/include/asm/efi.h @@ -90,6 +90,7 @@ extern void __iomem *efi_ioremap(unsigned long addr, unsigned long size, #endif /* CONFIG_X86_32 */ extern int add_efi_memmap; +extern void efi_set_executable(efi_memory_desc_t *md, bool executable); extern void efi_memblock_x86_reserve_range(void); extern void efi_call_phys_prelog(void); extern void efi_call_phys_epilog(void); diff --git a/arch/x86/include/asm/ftrace.h b/arch/x86/include/asm/ftrace.h index db24c2278be..268c783ab1c 100644 --- a/arch/x86/include/asm/ftrace.h +++ b/arch/x86/include/asm/ftrace.h @@ -38,11 +38,10 @@ extern void mcount(void); static inline unsigned long ftrace_call_adjust(unsigned long addr) { /* - * call mcount is "e8 <4 byte offset>" - * The addr points to the 4 byte offset and the caller of this - * function wants the pointer to e8. Simply subtract one. + * addr is the address of the mcount call instruction. + * recordmcount does the necessary offset calculation. */ - return addr - 1; + return addr; } #ifdef CONFIG_DYNAMIC_FTRACE diff --git a/arch/x86/include/asm/i8253.h b/arch/x86/include/asm/i8253.h index fc1f579fb96..65aaa91d585 100644 --- a/arch/x86/include/asm/i8253.h +++ b/arch/x86/include/asm/i8253.h @@ -6,6 +6,8 @@ #define PIT_CH0 0x40 #define PIT_CH2 0x42 +#define PIT_LATCH LATCH + extern raw_spinlock_t i8253_lock; extern struct clock_event_device *global_clock_event; diff --git a/arch/x86/include/asm/jump_label.h b/arch/x86/include/asm/jump_label.h index 574dbc22893..a32b18ce6ea 100644 --- a/arch/x86/include/asm/jump_label.h +++ b/arch/x86/include/asm/jump_label.h @@ -5,20 +5,25 @@ #include <linux/types.h> #include <asm/nops.h> +#include <asm/asm.h> #define JUMP_LABEL_NOP_SIZE 5 -# define JUMP_LABEL_INITIAL_NOP ".byte 0xe9 \n\t .long 0\n\t" - -# define JUMP_LABEL(key, label) \ - do { \ - asm goto("1:" \ - JUMP_LABEL_INITIAL_NOP \ - ".pushsection __jump_table, \"aw\" \n\t"\ - _ASM_PTR "1b, %l[" #label "], %c0 \n\t" \ - ".popsection \n\t" \ - : : "i" (key) : : label); \ - } while (0) +#define JUMP_LABEL_INITIAL_NOP ".byte 0xe9 \n\t .long 0\n\t" + +static __always_inline bool arch_static_branch(struct jump_label_key *key) +{ + asm goto("1:" + JUMP_LABEL_INITIAL_NOP + ".pushsection __jump_table, \"aw\" \n\t" + _ASM_ALIGN "\n\t" + _ASM_PTR "1b, %l[l_yes], %c0 \n\t" + ".popsection \n\t" + : : "i" (key) : : l_yes); + return false; +l_yes: + return true; +} #endif /* __KERNEL__ */ diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h index eb16e94ae04..021979a6e23 100644 --- a/arch/x86/include/asm/mce.h +++ b/arch/x86/include/asm/mce.h @@ -142,8 +142,6 @@ static inline void winchip_mcheck_init(struct cpuinfo_x86 *c) {} static inline void enable_p5_mce(void) {} #endif -extern void (*x86_mce_decode_callback)(struct mce *m); - void mce_setup(struct mce *m); void mce_log(struct mce *m); DECLARE_PER_CPU(struct sys_device, mce_dev); diff --git a/arch/x86/include/asm/mmzone_32.h b/arch/x86/include/asm/mmzone_32.h index 91df7c51806..5e83a416eca 100644 --- a/arch/x86/include/asm/mmzone_32.h +++ b/arch/x86/include/asm/mmzone_32.h @@ -13,31 +13,11 @@ extern struct pglist_data *node_data[]; #define NODE_DATA(nid) (node_data[nid]) #include <asm/numaq.h> -/* summit or generic arch */ -#include <asm/srat.h> - -extern int get_memcfg_numa_flat(void); -/* - * This allows any one NUMA architecture to be compiled - * for, and still fall back to the flat function if it - * fails. - */ -static inline void get_memcfg_numa(void) -{ - - if (get_memcfg_numaq()) - return; - if (get_memcfg_from_srat()) - return; - get_memcfg_numa_flat(); -} extern void resume_map_numa_kva(pgd_t *pgd); #else /* !CONFIG_NUMA */ -#define get_memcfg_numa get_memcfg_numa_flat - static inline void resume_map_numa_kva(pgd_t *pgd) {} #endif /* CONFIG_NUMA */ diff --git a/arch/x86/include/asm/mmzone_64.h b/arch/x86/include/asm/mmzone_64.h index 288b96f815a..b3f88d7867c 100644 --- a/arch/x86/include/asm/mmzone_64.h +++ b/arch/x86/include/asm/mmzone_64.h @@ -4,36 +4,13 @@ #ifndef _ASM_X86_MMZONE_64_H #define _ASM_X86_MMZONE_64_H - #ifdef CONFIG_NUMA #include <linux/mmdebug.h> - #include <asm/smp.h> -/* Simple perfect hash to map physical addresses to node numbers */ -struct memnode { - int shift; - unsigned int mapsize; - s16 *map; - s16 embedded_map[64 - 8]; -} ____cacheline_aligned; /* total size = 128 bytes */ -extern struct memnode memnode; -#define memnode_shift memnode.shift -#define memnodemap memnode.map -#define memnodemapsize memnode.mapsize - extern struct pglist_data *node_data[]; -static inline __attribute__((pure)) int phys_to_nid(unsigned long addr) -{ - unsigned nid; - VIRTUAL_BUG_ON(!memnodemap); - nid = memnodemap[addr >> memnode_shift]; - VIRTUAL_BUG_ON(nid >= MAX_NUMNODES || !node_data[nid]); - return nid; -} - #define NODE_DATA(nid) (node_data[nid]) #define node_start_pfn(nid) (NODE_DATA(nid)->node_start_pfn) diff --git a/arch/x86/include/asm/module.h b/arch/x86/include/asm/module.h index 67763c5d8b4..9eae7752ae9 100644 --- a/arch/x86/include/asm/module.h +++ b/arch/x86/include/asm/module.h @@ -35,7 +35,7 @@ #define MODULE_PROC_FAMILY "K7 " #elif defined CONFIG_MK8 #define MODULE_PROC_FAMILY "K8 " -#elif defined CONFIG_X86_ELAN +#elif defined CONFIG_MELAN #define MODULE_PROC_FAMILY "ELAN " #elif defined CONFIG_MCRUSOE #define MODULE_PROC_FAMILY "CRUSOE " diff --git a/arch/x86/include/asm/nops.h b/arch/x86/include/asm/nops.h index af788496020..405b4032a60 100644 --- a/arch/x86/include/asm/nops.h +++ b/arch/x86/include/asm/nops.h @@ -1,7 +1,13 @@ #ifndef _ASM_X86_NOPS_H #define _ASM_X86_NOPS_H -/* Define nops for use with alternative() */ +/* + * Define nops for use with alternative() and for tracing. + * + * *_NOP5_ATOMIC must be a single instruction. + */ + +#define NOP_DS_PREFIX 0x3e /* generic versions from gas 1: nop @@ -13,14 +19,15 @@ 6: leal 0x00000000(%esi),%esi 7: leal 0x00000000(,%esi,1),%esi */ -#define GENERIC_NOP1 ".byte 0x90\n" -#define GENERIC_NOP2 ".byte 0x89,0xf6\n" -#define GENERIC_NOP3 ".byte 0x8d,0x76,0x00\n" -#define GENERIC_NOP4 ".byte 0x8d,0x74,0x26,0x00\n" -#define GENERIC_NOP5 GENERIC_NOP1 GENERIC_NOP4 -#define GENERIC_NOP6 ".byte 0x8d,0xb6,0x00,0x00,0x00,0x00\n" -#define GENERIC_NOP7 ".byte 0x8d,0xb4,0x26,0x00,0x00,0x00,0x00\n" -#define GENERIC_NOP8 GENERIC_NOP1 GENERIC_NOP7 +#define GENERIC_NOP1 0x90 +#define GENERIC_NOP2 0x89,0xf6 +#define GENERIC_NOP3 0x8d,0x76,0x00 +#define GENERIC_NOP4 0x8d,0x74,0x26,0x00 +#define GENERIC_NOP5 GENERIC_NOP1,GENERIC_NOP4 +#define GENERIC_NOP6 0x8d,0xb6,0x00,0x00,0x00,0x00 +#define GENERIC_NOP7 0x8d,0xb4,0x26,0x00,0x00,0x00,0x00 +#define GENERIC_NOP8 GENERIC_NOP1,GENERIC_NOP7 +#define GENERIC_NOP5_ATOMIC NOP_DS_PREFIX,GENERIC_NOP4 /* Opteron 64bit nops 1: nop @@ -29,13 +36,14 @@ 4: osp osp osp nop */ #define K8_NOP1 GENERIC_NOP1 -#define K8_NOP2 ".byte 0x66,0x90\n" -#define K8_NOP3 ".byte 0x66,0x66,0x90\n" -#define K8_NOP4 ".byte 0x66,0x66,0x66,0x90\n" -#define K8_NOP5 K8_NOP3 K8_NOP2 -#define K8_NOP6 K8_NOP3 K8_NOP3 -#define K8_NOP7 K8_NOP4 K8_NOP3 -#define K8_NOP8 K8_NOP4 K8_NOP4 +#define K8_NOP2 0x66,K8_NOP1 +#define K8_NOP3 0x66,K8_NOP2 +#define K8_NOP4 0x66,K8_NOP3 +#define K8_NOP5 K8_NOP3,K8_NOP2 +#define K8_NOP6 K8_NOP3,K8_NOP3 +#define K8_NOP7 K8_NOP4,K8_NOP3 +#define K8_NOP8 K8_NOP4,K8_NOP4 +#define K8_NOP5_ATOMIC 0x66,K8_NOP4 /* K7 nops uses eax dependencies (arbitrary choice) @@ -47,13 +55,14 @@ 7: leal 0x00000000(,%eax,1),%eax */ #define K7_NOP1 GENERIC_NOP1 -#define K7_NOP2 ".byte 0x8b,0xc0\n" -#define K7_NOP3 ".byte 0x8d,0x04,0x20\n" -#define K7_NOP4 ".byte 0x8d,0x44,0x20,0x00\n" -#define K7_NOP5 K7_NOP4 ASM_NOP1 -#define K7_NOP6 ".byte 0x8d,0x80,0,0,0,0\n" -#define K7_NOP7 ".byte 0x8D,0x04,0x05,0,0,0,0\n" -#define K7_NOP8 K7_NOP7 ASM_NOP1 +#define K7_NOP2 0x8b,0xc0 +#define K7_NOP3 0x8d,0x04,0x20 +#define K7_NOP4 0x8d,0x44,0x20,0x00 +#define K7_NOP5 K7_NOP4,K7_NOP1 +#define K7_NOP6 0x8d,0x80,0,0,0,0 +#define K7_NOP7 0x8D,0x04,0x05,0,0,0,0 +#define K7_NOP8 K7_NOP7,K7_NOP1 +#define K7_NOP5_ATOMIC NOP_DS_PREFIX,K7_NOP4 /* P6 nops uses eax dependencies (Intel-recommended choice) @@ -69,52 +78,65 @@ There is kernel code that depends on this. */ #define P6_NOP1 GENERIC_NOP1 -#define P6_NOP2 ".byte 0x66,0x90\n" -#define P6_NOP3 ".byte 0x0f,0x1f,0x00\n" -#define P6_NOP4 ".byte 0x0f,0x1f,0x40,0\n" -#define P6_NOP5 ".byte 0x0f,0x1f,0x44,0x00,0\n" -#define P6_NOP6 ".byte 0x66,0x0f,0x1f,0x44,0x00,0\n" -#define P6_NOP7 ".byte 0x0f,0x1f,0x80,0,0,0,0\n" -#define P6_NOP8 ".byte 0x0f,0x1f,0x84,0x00,0,0,0,0\n" +#define P6_NOP2 0x66,0x90 +#define P6_NOP3 0x0f,0x1f,0x00 +#define P6_NOP4 0x0f,0x1f,0x40,0 +#define P6_NOP5 0x0f,0x1f,0x44,0x00,0 +#define P6_NOP6 0x66,0x0f,0x1f,0x44,0x00,0 +#define P6_NOP7 0x0f,0x1f,0x80,0,0,0,0 +#define P6_NOP8 0x0f,0x1f,0x84,0x00,0,0,0,0 +#define P6_NOP5_ATOMIC P6_NOP5 + +#define _ASM_MK_NOP(x) ".byte " __stringify(x) "\n" #if defined(CONFIG_MK7) -#define ASM_NOP1 K7_NOP1 -#define ASM_NOP2 K7_NOP2 -#define ASM_NOP3 K7_NOP3 -#define ASM_NOP4 K7_NOP4 -#define ASM_NOP5 K7_NOP5 -#define ASM_NOP6 K7_NOP6 -#define ASM_NOP7 K7_NOP7 -#define ASM_NOP8 K7_NOP8 +#define ASM_NOP1 _ASM_MK_NOP(K7_NOP1) +#define ASM_NOP2 _ASM_MK_NOP(K7_NOP2) +#define ASM_NOP3 _ASM_MK_NOP(K7_NOP3) +#define ASM_NOP4 _ASM_MK_NOP(K7_NOP4) +#define ASM_NOP5 _ASM_MK_NOP(K7_NOP5) +#define ASM_NOP6 _ASM_MK_NOP(K7_NOP6) +#define ASM_NOP7 _ASM_MK_NOP(K7_NOP7) +#define ASM_NOP8 _ASM_MK_NOP(K7_NOP8) +#define ASM_NOP5_ATOMIC _ASM_MK_NOP(K7_NOP5_ATOMIC) #elif defined(CONFIG_X86_P6_NOP) -#define ASM_NOP1 P6_NOP1 -#define ASM_NOP2 P6_NOP2 -#define ASM_NOP3 P6_NOP3 -#define ASM_NOP4 P6_NOP4 -#define ASM_NOP5 P6_NOP5 -#define ASM_NOP6 P6_NOP6 -#define ASM_NOP7 P6_NOP7 -#define ASM_NOP8 P6_NOP8 +#define ASM_NOP1 _ASM_MK_NOP(P6_NOP1) +#define ASM_NOP2 _ASM_MK_NOP(P6_NOP2) +#define ASM_NOP3 _ASM_MK_NOP(P6_NOP3) +#define ASM_NOP4 _ASM_MK_NOP(P6_NOP4) +#define ASM_NOP5 _ASM_MK_NOP(P6_NOP5) +#define ASM_NOP6 _ASM_MK_NOP(P6_NOP6) +#define ASM_NOP7 _ASM_MK_NOP(P6_NOP7) +#define ASM_NOP8 _ASM_MK_NOP(P6_NOP8) +#define ASM_NOP5_ATOMIC _ASM_MK_NOP(P6_NOP5_ATOMIC) #elif defined(CONFIG_X86_64) -#define ASM_NOP1 K8_NOP1 -#define ASM_NOP2 K8_NOP2 -#define ASM_NOP3 K8_NOP3 -#define ASM_NOP4 K8_NOP4 -#define ASM_NOP5 K8_NOP5 -#define ASM_NOP6 K8_NOP6 -#define ASM_NOP7 K8_NOP7 -#define ASM_NOP8 K8_NOP8 +#define ASM_NOP1 _ASM_MK_NOP(K8_NOP1) +#define ASM_NOP2 _ASM_MK_NOP(K8_NOP2) +#define ASM_NOP3 _ASM_MK_NOP(K8_NOP3) +#define ASM_NOP4 _ASM_MK_NOP(K8_NOP4) +#define ASM_NOP5 _ASM_MK_NOP(K8_NOP5) +#define ASM_NOP6 _ASM_MK_NOP(K8_NOP6) +#define ASM_NOP7 _ASM_MK_NOP(K8_NOP7) +#define ASM_NOP8 _ASM_MK_NOP(K8_NOP8) +#define ASM_NOP5_ATOMIC _ASM_MK_NOP(K8_NOP5_ATOMIC) #else -#define ASM_NOP1 GENERIC_NOP1 -#define ASM_NOP2 GENERIC_NOP2 -#define ASM_NOP3 GENERIC_NOP3 -#define ASM_NOP4 GENERIC_NOP4 -#define ASM_NOP5 GENERIC_NOP5 -#define ASM_NOP6 GENERIC_NOP6 -#define ASM_NOP7 GENERIC_NOP7 -#define ASM_NOP8 GENERIC_NOP8 +#define ASM_NOP1 _ASM_MK_NOP(GENERIC_NOP1) +#define ASM_NOP2 _ASM_MK_NOP(GENERIC_NOP2) +#define ASM_NOP3 _ASM_MK_NOP(GENERIC_NOP3) +#define ASM_NOP4 _ASM_MK_NOP(GENERIC_NOP4) +#define ASM_NOP5 _ASM_MK_NOP(GENERIC_NOP5) +#define ASM_NOP6 _ASM_MK_NOP(GENERIC_NOP6) +#define ASM_NOP7 _ASM_MK_NOP(GENERIC_NOP7) +#define ASM_NOP8 _ASM_MK_NOP(GENERIC_NOP8) +#define ASM_NOP5_ATOMIC _ASM_MK_NOP(GENERIC_NOP5_ATOMIC) #endif #define ASM_NOP_MAX 8 +#define NOP_ATOMIC5 (ASM_NOP_MAX+1) /* Entry for the 5-byte atomic NOP */ + +#ifndef __ASSEMBLY__ +extern const unsigned char * const *ideal_nops; +extern void arch_init_ideal_nops(void); +#endif #endif /* _ASM_X86_NOPS_H */ diff --git a/arch/x86/include/asm/numa.h b/arch/x86/include/asm/numa.h index a50fc9f493b..bfacd2ccf65 100644 --- a/arch/x86/include/asm/numa.h +++ b/arch/x86/include/asm/numa.h @@ -1,12 +1,24 @@ #ifndef _ASM_X86_NUMA_H #define _ASM_X86_NUMA_H +#include <linux/nodemask.h> + #include <asm/topology.h> #include <asm/apicdef.h> #ifdef CONFIG_NUMA #define NR_NODE_MEMBLKS (MAX_NUMNODES*2) +#define ZONE_ALIGN (1UL << (MAX_ORDER+PAGE_SHIFT)) + +/* + * Too small node sizes may confuse the VM badly. Usually they + * result from BIOS bugs. So dont recognize nodes as standalone + * NUMA entities that have less than this amount of RAM listed: + */ +#define NODE_MIN_SIZE (4*1024*1024) + +extern int numa_off; /* * __apicid_to_node[] stores the raw mapping between physical apicid and @@ -17,15 +29,27 @@ * numa_cpu_node(). */ extern s16 __apicid_to_node[MAX_LOCAL_APIC]; +extern nodemask_t numa_nodes_parsed __initdata; + +extern int __init numa_add_memblk(int nodeid, u64 start, u64 end); +extern void __init numa_set_distance(int from, int to, int distance); static inline void set_apicid_to_node(int apicid, s16 node) { __apicid_to_node[apicid] = node; } + +extern int __cpuinit numa_cpu_node(int cpu); + #else /* CONFIG_NUMA */ static inline void set_apicid_to_node(int apicid, s16 node) { } + +static inline int numa_cpu_node(int cpu) +{ + return NUMA_NO_NODE; +} #endif /* CONFIG_NUMA */ #ifdef CONFIG_X86_32 @@ -37,14 +61,12 @@ static inline void set_apicid_to_node(int apicid, s16 node) #ifdef CONFIG_NUMA extern void __cpuinit numa_set_node(int cpu, int node); extern void __cpuinit numa_clear_node(int cpu); -extern void __init numa_init_array(void); extern void __init init_cpu_to_node(void); extern void __cpuinit numa_add_cpu(int cpu); extern void __cpuinit numa_remove_cpu(int cpu); #else /* CONFIG_NUMA */ static inline void numa_set_node(int cpu, int node) { } static inline void numa_clear_node(int cpu) { } -static inline void numa_init_array(void) { } static inline void init_cpu_to_node(void) { } static inline void numa_add_cpu(int cpu) { } static inline void numa_remove_cpu(int cpu) { } @@ -54,4 +76,10 @@ static inline void numa_remove_cpu(int cpu) { } void debug_cpumask_set_cpu(int cpu, int node, bool enable); #endif +#ifdef CONFIG_NUMA_EMU +#define FAKE_NODE_MIN_SIZE ((u64)32 << 20) +#define FAKE_NODE_MIN_HASH_MASK (~(FAKE_NODE_MIN_SIZE - 1UL)) +void numa_emu_cmdline(char *); +#endif /* CONFIG_NUMA_EMU */ + #endif /* _ASM_X86_NUMA_H */ diff --git a/arch/x86/include/asm/numa_32.h b/arch/x86/include/asm/numa_32.h index c6beed1ef10..e7d6b825474 100644 --- a/arch/x86/include/asm/numa_32.h +++ b/arch/x86/include/asm/numa_32.h @@ -1,16 +1,6 @@ #ifndef _ASM_X86_NUMA_32_H #define _ASM_X86_NUMA_32_H -extern int numa_off; - -extern int pxm_to_nid(int pxm); - -#ifdef CONFIG_NUMA -extern int __cpuinit numa_cpu_node(int cpu); -#else /* CONFIG_NUMA */ -static inline int numa_cpu_node(int cpu) { return NUMA_NO_NODE; } -#endif /* CONFIG_NUMA */ - #ifdef CONFIG_HIGHMEM extern void set_highmem_pages_init(void); #else diff --git a/arch/x86/include/asm/numa_64.h b/arch/x86/include/asm/numa_64.h index 344eb1790b4..0c05f7ae46e 100644 --- a/arch/x86/include/asm/numa_64.h +++ b/arch/x86/include/asm/numa_64.h @@ -1,42 +1,6 @@ #ifndef _ASM_X86_NUMA_64_H #define _ASM_X86_NUMA_64_H -#include <linux/nodemask.h> - -struct bootnode { - u64 start; - u64 end; -}; - -#define ZONE_ALIGN (1UL << (MAX_ORDER+PAGE_SHIFT)) - -extern int numa_off; - extern unsigned long numa_free_all_bootmem(void); -extern void setup_node_bootmem(int nodeid, unsigned long start, - unsigned long end); - -#ifdef CONFIG_NUMA -/* - * Too small node sizes may confuse the VM badly. Usually they - * result from BIOS bugs. So dont recognize nodes as standalone - * NUMA entities that have less than this amount of RAM listed: - */ -#define NODE_MIN_SIZE (4*1024*1024) - -extern nodemask_t numa_nodes_parsed __initdata; - -extern int __cpuinit numa_cpu_node(int cpu); -extern int __init numa_add_memblk(int nodeid, u64 start, u64 end); -extern void __init numa_set_distance(int from, int to, int distance); - -#ifdef CONFIG_NUMA_EMU -#define FAKE_NODE_MIN_SIZE ((u64)32 << 20) -#define FAKE_NODE_MIN_HASH_MASK (~(FAKE_NODE_MIN_SIZE - 1UL)) -void numa_emu_cmdline(char *); -#endif /* CONFIG_NUMA_EMU */ -#else -static inline int numa_cpu_node(int cpu) { return NUMA_NO_NODE; } -#endif #endif /* _ASM_X86_NUMA_64_H */ diff --git a/arch/x86/include/asm/numaq.h b/arch/x86/include/asm/numaq.h index 37c516545ec..c3b3c322fd8 100644 --- a/arch/x86/include/asm/numaq.h +++ b/arch/x86/include/asm/numaq.h @@ -29,7 +29,7 @@ #ifdef CONFIG_X86_NUMAQ extern int found_numaq; -extern int get_memcfg_numaq(void); +extern int numaq_numa_init(void); extern int pci_numaq_init(void); extern void *xquad_portio; @@ -166,11 +166,6 @@ struct sys_cfg_data { void numaq_tsc_disable(void); -#else -static inline int get_memcfg_numaq(void) -{ - return 0; -} #endif /* CONFIG_X86_NUMAQ */ #endif /* _ASM_X86_NUMAQ_H */ diff --git a/arch/x86/include/asm/olpc_ofw.h b/arch/x86/include/asm/olpc_ofw.h index c5d3a5abbb9..24487712e0b 100644 --- a/arch/x86/include/asm/olpc_ofw.h +++ b/arch/x86/include/asm/olpc_ofw.h @@ -26,15 +26,12 @@ extern void setup_olpc_ofw_pgd(void); /* check if OFW was detected during boot */ extern bool olpc_ofw_present(void); +extern void olpc_dt_build_devicetree(void); + #else /* !CONFIG_OLPC */ static inline void olpc_ofw_detect(void) { } static inline void setup_olpc_ofw_pgd(void) { } -#endif /* !CONFIG_OLPC */ - -#ifdef CONFIG_OF_PROMTREE -extern void olpc_dt_build_devicetree(void); -#else static inline void olpc_dt_build_devicetree(void) { } -#endif +#endif /* !CONFIG_OLPC */ #endif /* _ASM_X86_OLPC_OFW_H */ diff --git a/arch/x86/include/asm/percpu.h b/arch/x86/include/asm/percpu.h index d475b4398d8..53278b0dfdf 100644 --- a/arch/x86/include/asm/percpu.h +++ b/arch/x86/include/asm/percpu.h @@ -517,7 +517,7 @@ do { \ typeof(o2) __o2 = o2; \ typeof(o2) __n2 = n2; \ typeof(o2) __dummy; \ - alternative_io("call this_cpu_cmpxchg16b_emu\n\t" P6_NOP4, \ + alternative_io("call this_cpu_cmpxchg16b_emu\n\t" ASM_NOP4, \ "cmpxchg16b " __percpu_prefix "(%%rsi)\n\tsetz %0\n\t", \ X86_FEATURE_CX16, \ ASM_OUTPUT2("=a"(__ret), "=d"(__dummy)), \ @@ -542,6 +542,33 @@ do { \ old__; \ }) +static __always_inline int x86_this_cpu_constant_test_bit(unsigned int nr, + const unsigned long __percpu *addr) +{ + unsigned long __percpu *a = (unsigned long *)addr + nr / BITS_PER_LONG; + + return ((1UL << (nr % BITS_PER_LONG)) & percpu_read(*a)) != 0; +} + +static inline int x86_this_cpu_variable_test_bit(int nr, + const unsigned long __percpu *addr) +{ + int oldbit; + + asm volatile("bt "__percpu_arg(2)",%1\n\t" + "sbb %0,%0" + : "=r" (oldbit) + : "m" (*(unsigned long *)addr), "Ir" (nr)); + + return oldbit; +} + +#define x86_this_cpu_test_bit(nr, addr) \ + (__builtin_constant_p((nr)) \ + ? x86_this_cpu_constant_test_bit((nr), (addr)) \ + : x86_this_cpu_variable_test_bit((nr), (addr))) + + #include <asm-generic/percpu.h> /* We can use this directly for local CPU (faster). */ diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h index 7db7723d1f3..d56187c6b83 100644 --- a/arch/x86/include/asm/pgtable_types.h +++ b/arch/x86/include/asm/pgtable_types.h @@ -299,6 +299,7 @@ int phys_mem_access_prot_allowed(struct file *file, unsigned long pfn, /* Install a pte for a particular vaddr in kernel space. */ void set_pte_vaddr(unsigned long vaddr, pte_t pte); +extern void native_pagetable_reserve(u64 start, u64 end); #ifdef CONFIG_X86_32 extern void native_pagetable_setup_start(pgd_t *base); extern void native_pagetable_setup_done(pgd_t *base); diff --git a/arch/x86/include/asm/probe_roms.h b/arch/x86/include/asm/probe_roms.h new file mode 100644 index 00000000000..4950a0b1d09 --- /dev/null +++ b/arch/x86/include/asm/probe_roms.h @@ -0,0 +1,8 @@ +#ifndef _PROBE_ROMS_H_ +#define _PROBE_ROMS_H_ +struct pci_dev; + +extern void __iomem *pci_map_biosrom(struct pci_dev *pdev); +extern void pci_unmap_biosrom(void __iomem *rom); +extern size_t pci_biosrom_size(struct pci_dev *pdev); +#endif diff --git a/arch/x86/include/asm/processor-flags.h b/arch/x86/include/asm/processor-flags.h index a898a2b6e10..59ab4dffa37 100644 --- a/arch/x86/include/asm/processor-flags.h +++ b/arch/x86/include/asm/processor-flags.h @@ -60,6 +60,7 @@ #define X86_CR4_OSXMMEXCPT 0x00000400 /* enable unmasked SSE exceptions */ #define X86_CR4_VMXE 0x00002000 /* enable VMX virtualization */ #define X86_CR4_OSXSAVE 0x00040000 /* enable xsave and xrestore */ +#define X86_CR4_SMEP 0x00100000 /* enable SMEP support */ /* * x86-64 Task Priority Register, CR8 diff --git a/arch/x86/include/asm/setup.h b/arch/x86/include/asm/setup.h index db8aa19a08a..9756551ec76 100644 --- a/arch/x86/include/asm/setup.h +++ b/arch/x86/include/asm/setup.h @@ -88,7 +88,7 @@ void *extend_brk(size_t size, size_t align); * executable.) */ #define RESERVE_BRK(name,sz) \ - static void __section(.discard.text) __used \ + static void __section(.discard.text) __used notrace \ __brk_reservation_fn_##name##__(void) { \ asm volatile ( \ ".pushsection .brk_reservation,\"aw\",@nobits;" \ @@ -104,10 +104,10 @@ void *extend_brk(size_t size, size_t align); type *name; \ RESERVE_BRK(name, sizeof(type) * entries) +extern void probe_roms(void); #ifdef __i386__ void __init i386_start_kernel(void); -extern void probe_roms(void); #else void __init x86_64_start_kernel(char *real_mode); diff --git a/arch/x86/include/asm/srat.h b/arch/x86/include/asm/srat.h deleted file mode 100644 index b508d639d1a..00000000000 --- a/arch/x86/include/asm/srat.h +++ /dev/null @@ -1,39 +0,0 @@ -/* - * Some of the code in this file has been gleaned from the 64 bit - * discontigmem support code base. - * - * Copyright (C) 2002, IBM Corp. - * - * All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or - * NON INFRINGEMENT. See the GNU General Public License for more - * details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - * Send feedback to Pat Gaughen <gone@us.ibm.com> - */ - -#ifndef _ASM_X86_SRAT_H -#define _ASM_X86_SRAT_H - -#ifdef CONFIG_ACPI_NUMA -extern int get_memcfg_from_srat(void); -#else -static inline int get_memcfg_from_srat(void) -{ - return 0; -} -#endif - -#endif /* _ASM_X86_SRAT_H */ diff --git a/arch/x86/include/asm/stacktrace.h b/arch/x86/include/asm/stacktrace.h index d7e89c83645..70bbe39043a 100644 --- a/arch/x86/include/asm/stacktrace.h +++ b/arch/x86/include/asm/stacktrace.h @@ -37,9 +37,6 @@ print_context_stack_bp(struct thread_info *tinfo, /* Generic stack tracer with callbacks */ struct stacktrace_ops { - void (*warning)(void *data, char *msg); - /* msg must contain %s for the symbol */ - void (*warning_symbol)(void *data, char *msg, unsigned long symbol); void (*address)(void *data, unsigned long address, int reliable); /* On negative return stop dumping */ int (*stack)(void *data, char *name); diff --git a/arch/x86/include/asm/system.h b/arch/x86/include/asm/system.h index 12569e691ce..c2ff2a1d845 100644 --- a/arch/x86/include/asm/system.h +++ b/arch/x86/include/asm/system.h @@ -303,24 +303,81 @@ static inline void native_wbinvd(void) #ifdef CONFIG_PARAVIRT #include <asm/paravirt.h> #else -#define read_cr0() (native_read_cr0()) -#define write_cr0(x) (native_write_cr0(x)) -#define read_cr2() (native_read_cr2()) -#define write_cr2(x) (native_write_cr2(x)) -#define read_cr3() (native_read_cr3()) -#define write_cr3(x) (native_write_cr3(x)) -#define read_cr4() (native_read_cr4()) -#define read_cr4_safe() (native_read_cr4_safe()) -#define write_cr4(x) (native_write_cr4(x)) -#define wbinvd() (native_wbinvd()) + +static inline unsigned long read_cr0(void) +{ + return native_read_cr0(); +} + +static inline void write_cr0(unsigned long x) +{ + native_write_cr0(x); +} + +static inline unsigned long read_cr2(void) +{ + return native_read_cr2(); +} + +static inline void write_cr2(unsigned long x) +{ + native_write_cr2(x); +} + +static inline unsigned long read_cr3(void) +{ + return native_read_cr3(); +} + +static inline void write_cr3(unsigned long x) +{ + native_write_cr3(x); +} + +static inline unsigned long read_cr4(void) +{ + return native_read_cr4(); +} + +static inline unsigned long read_cr4_safe(void) +{ + return native_read_cr4_safe(); +} + +static inline void write_cr4(unsigned long x) +{ + native_write_cr4(x); +} + +static inline void wbinvd(void) +{ + native_wbinvd(); +} + #ifdef CONFIG_X86_64 -#define read_cr8() (native_read_cr8()) -#define write_cr8(x) (native_write_cr8(x)) -#define load_gs_index native_load_gs_index + +static inline unsigned long read_cr8(void) +{ + return native_read_cr8(); +} + +static inline void write_cr8(unsigned long x) +{ + native_write_cr8(x); +} + +static inline void load_gs_index(unsigned selector) +{ + native_load_gs_index(selector); +} + #endif /* Clear the 'TS' bit */ -#define clts() (native_clts()) +static inline void clts(void) +{ + native_clts(); +} #endif/* CONFIG_PARAVIRT */ diff --git a/arch/x86/include/asm/topology.h b/arch/x86/include/asm/topology.h index 910a7084f7f..c00692476e9 100644 --- a/arch/x86/include/asm/topology.h +++ b/arch/x86/include/asm/topology.h @@ -93,19 +93,11 @@ extern void setup_node_to_cpumask_map(void); #define pcibus_to_node(bus) __pcibus_to_node(bus) #ifdef CONFIG_X86_32 -extern unsigned long node_start_pfn[]; -extern unsigned long node_end_pfn[]; -extern unsigned long node_remap_size[]; -#define node_has_online_mem(nid) (node_start_pfn[nid] != node_end_pfn[nid]) - # define SD_CACHE_NICE_TRIES 1 # define SD_IDLE_IDX 1 - #else - # define SD_CACHE_NICE_TRIES 2 # define SD_IDLE_IDX 2 - #endif /* sched_domains SD_NODE_INIT for NUMA machines */ diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h index abd3e0ea762..99f0ad753f3 100644 --- a/arch/x86/include/asm/uaccess.h +++ b/arch/x86/include/asm/uaccess.h @@ -42,7 +42,7 @@ * Returns 0 if the range is valid, nonzero otherwise. * * This is equivalent to the following test: - * (u33)addr + (u33)size >= (u33)current->addr_limit.seg (u65 for x86_64) + * (u33)addr + (u33)size > (u33)current->addr_limit.seg (u65 for x86_64) * * This needs 33-bit (65-bit for x86_64) arithmetic. We have a carry... */ diff --git a/arch/x86/include/asm/uv/uv_bau.h b/arch/x86/include/asm/uv/uv_bau.h index 3e094af443c..130f1eeee5f 100644 --- a/arch/x86/include/asm/uv/uv_bau.h +++ b/arch/x86/include/asm/uv/uv_bau.h @@ -94,6 +94,8 @@ /* after this # consecutive successes, bump up the throttle if it was lowered */ #define COMPLETE_THRESHOLD 5 +#define UV_LB_SUBNODEID 0x10 + /* * number of entries in the destination side payload queue */ @@ -124,7 +126,7 @@ * The distribution specification (32 bytes) is interpreted as a 256-bit * distribution vector. Adjacent bits correspond to consecutive even numbered * nodeIDs. The result of adding the index of a given bit to the 15-bit - * 'base_dest_nodeid' field of the header corresponds to the + * 'base_dest_nasid' field of the header corresponds to the * destination nodeID associated with that specified bit. */ struct bau_target_uvhubmask { @@ -176,7 +178,7 @@ struct bau_msg_payload { struct bau_msg_header { unsigned int dest_subnodeid:6; /* must be 0x10, for the LB */ /* bits 5:0 */ - unsigned int base_dest_nodeid:15; /* nasid of the */ + unsigned int base_dest_nasid:15; /* nasid of the */ /* bits 20:6 */ /* first bit in uvhub map */ unsigned int command:8; /* message type */ /* bits 28:21 */ @@ -378,6 +380,10 @@ struct ptc_stats { unsigned long d_rcanceled; /* number of messages canceled by resets */ }; +struct hub_and_pnode { + short uvhub; + short pnode; +}; /* * one per-cpu; to locate the software tables */ @@ -399,10 +405,12 @@ struct bau_control { int baudisabled; int set_bau_off; short cpu; + short osnode; short uvhub_cpu; short uvhub; short cpus_in_socket; short cpus_in_uvhub; + short partition_base_pnode; unsigned short message_number; unsigned short uvhub_quiesce; short socket_acknowledge_count[DEST_Q_SIZE]; @@ -422,15 +430,16 @@ struct bau_control { int congested_period; cycles_t period_time; long period_requests; + struct hub_and_pnode *target_hub_and_pnode; }; static inline int bau_uvhub_isset(int uvhub, struct bau_target_uvhubmask *dstp) { return constant_test_bit(uvhub, &dstp->bits[0]); } -static inline void bau_uvhub_set(int uvhub, struct bau_target_uvhubmask *dstp) +static inline void bau_uvhub_set(int pnode, struct bau_target_uvhubmask *dstp) { - __set_bit(uvhub, &dstp->bits[0]); + __set_bit(pnode, &dstp->bits[0]); } static inline void bau_uvhubs_clear(struct bau_target_uvhubmask *dstp, int nbits) diff --git a/arch/x86/include/asm/uv/uv_hub.h b/arch/x86/include/asm/uv/uv_hub.h index a501741c233..4298002d0c8 100644 --- a/arch/x86/include/asm/uv/uv_hub.h +++ b/arch/x86/include/asm/uv/uv_hub.h @@ -398,6 +398,8 @@ struct uv_blade_info { unsigned short nr_online_cpus; unsigned short pnode; short memory_nid; + spinlock_t nmi_lock; + unsigned long nmi_count; }; extern struct uv_blade_info *uv_blade_info; extern short *uv_node_to_blade; diff --git a/arch/x86/include/asm/uv/uv_mmrs.h b/arch/x86/include/asm/uv/uv_mmrs.h index 20cafeac745..f5bb64a823d 100644 --- a/arch/x86/include/asm/uv/uv_mmrs.h +++ b/arch/x86/include/asm/uv/uv_mmrs.h @@ -5,7 +5,7 @@ * * SGI UV MMR definitions * - * Copyright (C) 2007-2010 Silicon Graphics, Inc. All rights reserved. + * Copyright (C) 2007-2011 Silicon Graphics, Inc. All rights reserved. */ #ifndef _ASM_X86_UV_UV_MMRS_H @@ -1099,5 +1099,19 @@ union uvh_rtc1_int_config_u { } s; }; +/* ========================================================================= */ +/* UVH_SCRATCH5 */ +/* ========================================================================= */ +#define UVH_SCRATCH5 0x2d0200UL +#define UVH_SCRATCH5_32 0x00778 + +#define UVH_SCRATCH5_SCRATCH5_SHFT 0 +#define UVH_SCRATCH5_SCRATCH5_MASK 0xffffffffffffffffUL +union uvh_scratch5_u { + unsigned long v; + struct uvh_scratch5_s { + unsigned long scratch5 : 64; /* RW, W1CS */ + } s; +}; #endif /* __ASM_UV_MMRS_X86_H__ */ diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h index 643ebf2e2ad..d3d859035af 100644 --- a/arch/x86/include/asm/x86_init.h +++ b/arch/x86/include/asm/x86_init.h @@ -68,6 +68,17 @@ struct x86_init_oem { }; /** + * struct x86_init_mapping - platform specific initial kernel pagetable setup + * @pagetable_reserve: reserve a range of addresses for kernel pagetable usage + * + * For more details on the purpose of this hook, look in + * init_memory_mapping and the commit that added it. + */ +struct x86_init_mapping { + void (*pagetable_reserve)(u64 start, u64 end); +}; + +/** * struct x86_init_paging - platform specific paging functions * @pagetable_setup_start: platform specific pre paging_init() call * @pagetable_setup_done: platform specific post paging_init() call @@ -123,6 +134,7 @@ struct x86_init_ops { struct x86_init_mpparse mpparse; struct x86_init_irqs irqs; struct x86_init_oem oem; + struct x86_init_mapping mapping; struct x86_init_paging paging; struct x86_init_timers timers; struct x86_init_iommu iommu; diff --git a/arch/x86/include/asm/xen/page.h b/arch/x86/include/asm/xen/page.h index c61934fbf22..64a619d47d3 100644 --- a/arch/x86/include/asm/xen/page.h +++ b/arch/x86/include/asm/xen/page.h @@ -47,8 +47,9 @@ extern bool __set_phys_to_machine(unsigned long pfn, unsigned long mfn); extern unsigned long set_phys_range_identity(unsigned long pfn_s, unsigned long pfn_e); -extern int m2p_add_override(unsigned long mfn, struct page *page); -extern int m2p_remove_override(struct page *page); +extern int m2p_add_override(unsigned long mfn, struct page *page, + bool clear_pte); +extern int m2p_remove_override(struct page *page, bool clear_pte); extern struct page *m2p_find_override(unsigned long mfn); extern unsigned long m2p_find_override_pfn(unsigned long mfn, unsigned long pfn); diff --git a/arch/x86/include/asm/xen/pci.h b/arch/x86/include/asm/xen/pci.h index aa862098916..4fbda9a3f33 100644 --- a/arch/x86/include/asm/xen/pci.h +++ b/arch/x86/include/asm/xen/pci.h @@ -15,10 +15,26 @@ static inline int pci_xen_hvm_init(void) #endif #if defined(CONFIG_XEN_DOM0) void __init xen_setup_pirqs(void); +int xen_find_device_domain_owner(struct pci_dev *dev); +int xen_register_device_domain_owner(struct pci_dev *dev, uint16_t domain); +int xen_unregister_device_domain_owner(struct pci_dev *dev); #else static inline void __init xen_setup_pirqs(void) { } +static inline int xen_find_device_domain_owner(struct pci_dev *dev) +{ + return -1; +} +static inline int xen_register_device_domain_owner(struct pci_dev *dev, + uint16_t domain) +{ + return -1; +} +static inline int xen_unregister_device_domain_owner(struct pci_dev *dev) +{ + return -1; +} #endif #if defined(CONFIG_PCI_MSI) diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile index 7338ef2218b..250806472a7 100644 --- a/arch/x86/kernel/Makefile +++ b/arch/x86/kernel/Makefile @@ -36,7 +36,7 @@ obj-y += traps.o irq.o irq_$(BITS).o dumpstack_$(BITS).o obj-y += time.o ioport.o ldt.o dumpstack.o obj-y += setup.o x86_init.o i8259.o irqinit.o jump_label.o obj-$(CONFIG_IRQ_WORK) += irq_work.o -obj-$(CONFIG_X86_32) += probe_roms_32.o +obj-y += probe_roms.o obj-$(CONFIG_X86_32) += sys_i386_32.o i386_ksyms_32.o obj-$(CONFIG_X86_64) += sys_x86_64.o x8664_ksyms_64.o obj-$(CONFIG_X86_64) += syscall_64.o vsyscall_64.o @@ -117,7 +117,7 @@ obj-$(CONFIG_OF) += devicetree.o ifeq ($(CONFIG_X86_64),y) obj-$(CONFIG_AUDIT) += audit_64.o - obj-$(CONFIG_GART_IOMMU) += pci-gart_64.o aperture_64.o + obj-$(CONFIG_GART_IOMMU) += amd_gart_64.o aperture_64.o obj-$(CONFIG_CALGARY_IOMMU) += pci-calgary_64.o tce_64.o obj-$(CONFIG_AMD_IOMMU) += amd_iommu_init.o amd_iommu.o diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c index ff93bc1b09c..18a857ba7a2 100644 --- a/arch/x86/kernel/acpi/sleep.c +++ b/arch/x86/kernel/acpi/sleep.c @@ -112,11 +112,6 @@ static int __init acpi_sleep_setup(char *str) #ifdef CONFIG_HIBERNATION if (strncmp(str, "s4_nohwsig", 10) == 0) acpi_no_s4_hw_signature(); - if (strncmp(str, "s4_nonvs", 8) == 0) { - pr_warning("ACPI: acpi_sleep=s4_nonvs is deprecated, " - "please use acpi_sleep=nonvs instead"); - acpi_nvs_nosave(); - } #endif if (strncmp(str, "nonvs", 5) == 0) acpi_nvs_nosave(); diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c index 4a234677e21..a81f2d52f86 100644 --- a/arch/x86/kernel/alternative.c +++ b/arch/x86/kernel/alternative.c @@ -67,17 +67,30 @@ __setup("noreplace-paravirt", setup_noreplace_paravirt); #define DPRINTK(fmt, args...) if (debug_alternative) \ printk(KERN_DEBUG fmt, args) +/* + * Each GENERIC_NOPX is of X bytes, and defined as an array of bytes + * that correspond to that nop. Getting from one nop to the next, we + * add to the array the offset that is equal to the sum of all sizes of + * nops preceding the one we are after. + * + * Note: The GENERIC_NOP5_ATOMIC is at the end, as it breaks the + * nice symmetry of sizes of the previous nops. + */ #if defined(GENERIC_NOP1) && !defined(CONFIG_X86_64) -/* Use inline assembly to define this because the nops are defined - as inline assembly strings in the include files and we cannot - get them easily into strings. */ -asm("\t" __stringify(__INITRODATA_OR_MODULE) "\nintelnops: " - GENERIC_NOP1 GENERIC_NOP2 GENERIC_NOP3 GENERIC_NOP4 GENERIC_NOP5 GENERIC_NOP6 - GENERIC_NOP7 GENERIC_NOP8 - "\t.previous"); -extern const unsigned char intelnops[]; -static const unsigned char *const __initconst_or_module -intel_nops[ASM_NOP_MAX+1] = { +static const unsigned char intelnops[] = +{ + GENERIC_NOP1, + GENERIC_NOP2, + GENERIC_NOP3, + GENERIC_NOP4, + GENERIC_NOP5, + GENERIC_NOP6, + GENERIC_NOP7, + GENERIC_NOP8, + GENERIC_NOP5_ATOMIC +}; +static const unsigned char * const intel_nops[ASM_NOP_MAX+2] = +{ NULL, intelnops, intelnops + 1, @@ -87,17 +100,25 @@ intel_nops[ASM_NOP_MAX+1] = { intelnops + 1 + 2 + 3 + 4 + 5, intelnops + 1 + 2 + 3 + 4 + 5 + 6, intelnops + 1 + 2 + 3 + 4 + 5 + 6 + 7, + intelnops + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8, }; #endif #ifdef K8_NOP1 -asm("\t" __stringify(__INITRODATA_OR_MODULE) "\nk8nops: " - K8_NOP1 K8_NOP2 K8_NOP3 K8_NOP4 K8_NOP5 K8_NOP6 - K8_NOP7 K8_NOP8 - "\t.previous"); -extern const unsigned char k8nops[]; -static const unsigned char *const __initconst_or_module -k8_nops[ASM_NOP_MAX+1] = { +static const unsigned char k8nops[] = +{ + K8_NOP1, + K8_NOP2, + K8_NOP3, + K8_NOP4, + K8_NOP5, + K8_NOP6, + K8_NOP7, + K8_NOP8, + K8_NOP5_ATOMIC +}; +static const unsigned char * const k8_nops[ASM_NOP_MAX+2] = +{ NULL, k8nops, k8nops + 1, @@ -107,17 +128,25 @@ k8_nops[ASM_NOP_MAX+1] = { k8nops + 1 + 2 + 3 + 4 + 5, k8nops + 1 + 2 + 3 + 4 + 5 + 6, k8nops + 1 + 2 + 3 + 4 + 5 + 6 + 7, + k8nops + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8, }; #endif #if defined(K7_NOP1) && !defined(CONFIG_X86_64) -asm("\t" __stringify(__INITRODATA_OR_MODULE) "\nk7nops: " - K7_NOP1 K7_NOP2 K7_NOP3 K7_NOP4 K7_NOP5 K7_NOP6 - K7_NOP7 K7_NOP8 - "\t.previous"); -extern const unsigned char k7nops[]; -static const unsigned char *const __initconst_or_module -k7_nops[ASM_NOP_MAX+1] = { +static const unsigned char k7nops[] = +{ + K7_NOP1, + K7_NOP2, + K7_NOP3, + K7_NOP4, + K7_NOP5, + K7_NOP6, + K7_NOP7, + K7_NOP8, + K7_NOP5_ATOMIC +}; +static const unsigned char * const k7_nops[ASM_NOP_MAX+2] = +{ NULL, k7nops, k7nops + 1, @@ -127,17 +156,25 @@ k7_nops[ASM_NOP_MAX+1] = { k7nops + 1 + 2 + 3 + 4 + 5, k7nops + 1 + 2 + 3 + 4 + 5 + 6, k7nops + 1 + 2 + 3 + 4 + 5 + 6 + 7, + k7nops + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8, }; #endif #ifdef P6_NOP1 -asm("\t" __stringify(__INITRODATA_OR_MODULE) "\np6nops: " - P6_NOP1 P6_NOP2 P6_NOP3 P6_NOP4 P6_NOP5 P6_NOP6 - P6_NOP7 P6_NOP8 - "\t.previous"); -extern const unsigned char p6nops[]; -static const unsigned char *const __initconst_or_module -p6_nops[ASM_NOP_MAX+1] = { +static const unsigned char __initconst_or_module p6nops[] = +{ + P6_NOP1, + P6_NOP2, + P6_NOP3, + P6_NOP4, + P6_NOP5, + P6_NOP6, + P6_NOP7, + P6_NOP8, + P6_NOP5_ATOMIC +}; +static const unsigned char * const p6_nops[ASM_NOP_MAX+2] = +{ NULL, p6nops, p6nops + 1, @@ -147,47 +184,65 @@ p6_nops[ASM_NOP_MAX+1] = { p6nops + 1 + 2 + 3 + 4 + 5, p6nops + 1 + 2 + 3 + 4 + 5 + 6, p6nops + 1 + 2 + 3 + 4 + 5 + 6 + 7, + p6nops + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8, }; #endif +/* Initialize these to a safe default */ #ifdef CONFIG_X86_64 +const unsigned char * const *ideal_nops = p6_nops; +#else +const unsigned char * const *ideal_nops = intel_nops; +#endif -extern char __vsyscall_0; -static const unsigned char *const *__init_or_module find_nop_table(void) +void __init arch_init_ideal_nops(void) { - if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL && - boot_cpu_has(X86_FEATURE_NOPL)) - return p6_nops; - else - return k8_nops; -} - -#else /* CONFIG_X86_64 */ + switch (boot_cpu_data.x86_vendor) { + case X86_VENDOR_INTEL: + /* + * Due to a decoder implementation quirk, some + * specific Intel CPUs actually perform better with + * the "k8_nops" than with the SDM-recommended NOPs. + */ + if (boot_cpu_data.x86 == 6 && + boot_cpu_data.x86_model >= 0x0f && + boot_cpu_data.x86_model != 0x1c && + boot_cpu_data.x86_model != 0x26 && + boot_cpu_data.x86_model != 0x27 && + boot_cpu_data.x86_model < 0x30) { + ideal_nops = k8_nops; + } else if (boot_cpu_has(X86_FEATURE_NOPL)) { + ideal_nops = p6_nops; + } else { +#ifdef CONFIG_X86_64 + ideal_nops = k8_nops; +#else + ideal_nops = intel_nops; +#endif + } -static const unsigned char *const *__init_or_module find_nop_table(void) -{ - if (boot_cpu_has(X86_FEATURE_K8)) - return k8_nops; - else if (boot_cpu_has(X86_FEATURE_K7)) - return k7_nops; - else if (boot_cpu_has(X86_FEATURE_NOPL)) - return p6_nops; - else - return intel_nops; + default: +#ifdef CONFIG_X86_64 + ideal_nops = k8_nops; +#else + if (boot_cpu_has(X86_FEATURE_K8)) + ideal_nops = k8_nops; + else if (boot_cpu_has(X86_FEATURE_K7)) + ideal_nops = k7_nops; + else + ideal_nops = intel_nops; +#endif + } } -#endif /* CONFIG_X86_64 */ - /* Use this to add nops to a buffer, then text_poke the whole buffer. */ static void __init_or_module add_nops(void *insns, unsigned int len) { - const unsigned char *const *noptable = find_nop_table(); - while (len > 0) { unsigned int noplen = len; if (noplen > ASM_NOP_MAX) noplen = ASM_NOP_MAX; - memcpy(insns, noptable[noplen], noplen); + memcpy(insns, ideal_nops[noplen], noplen); insns += noplen; len -= noplen; } @@ -195,6 +250,7 @@ static void __init_or_module add_nops(void *insns, unsigned int len) extern struct alt_instr __alt_instructions[], __alt_instructions_end[]; extern s32 __smp_locks[], __smp_locks_end[]; +extern char __vsyscall_0; void *text_poke_early(void *addr, const void *opcode, size_t len); /* Replace instructions with better alternatives for this CPU type. @@ -210,6 +266,15 @@ void __init_or_module apply_alternatives(struct alt_instr *start, u8 insnbuf[MAX_PATCH_LEN]; DPRINTK("%s: alt table %p -> %p\n", __func__, start, end); + /* + * The scan order should be from start to end. A later scanned + * alternative code can overwrite a previous scanned alternative code. + * Some kernel functions (e.g. memcpy, memset, etc) use this order to + * patch code. + * + * So be careful if you want to change the scan order to any other + * order. + */ for (a = start; a < end; a++) { u8 *instr = a->instr; BUG_ON(a->replacementlen > a->instrlen); @@ -678,29 +743,3 @@ void __kprobes text_poke_smp_batch(struct text_poke_param *params, int n) wrote_text = 0; __stop_machine(stop_machine_text_poke, (void *)&tpp, NULL); } - -#if defined(CONFIG_DYNAMIC_FTRACE) || defined(HAVE_JUMP_LABEL) - -#ifdef CONFIG_X86_64 -unsigned char ideal_nop5[5] = { 0x66, 0x66, 0x66, 0x66, 0x90 }; -#else -unsigned char ideal_nop5[5] = { 0x3e, 0x8d, 0x74, 0x26, 0x00 }; -#endif - -void __init arch_init_ideal_nop5(void) -{ - /* - * There is no good nop for all x86 archs. This selection - * algorithm should be unified with the one in find_nop_table(), - * but this should be good enough for now. - * - * For cases other than the ones below, use the safe (as in - * always functional) defaults above. - */ -#ifdef CONFIG_X86_64 - /* Don't use these on 32 bits due to broken virtualizers */ - if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) - memcpy(ideal_nop5, p6_nops[5], 5); -#endif -} -#endif diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/amd_gart_64.c index b117efd24f7..b117efd24f7 100644 --- a/arch/x86/kernel/pci-gart_64.c +++ b/arch/x86/kernel/amd_gart_64.c diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c index 57ca7778722..873e7e1ead7 100644 --- a/arch/x86/kernel/amd_iommu.c +++ b/arch/x86/kernel/amd_iommu.c @@ -18,6 +18,7 @@ */ #include <linux/pci.h> +#include <linux/pci-ats.h> #include <linux/bitmap.h> #include <linux/slab.h> #include <linux/debugfs.h> @@ -25,6 +26,7 @@ #include <linux/dma-mapping.h> #include <linux/iommu-helper.h> #include <linux/iommu.h> +#include <linux/delay.h> #include <asm/proto.h> #include <asm/iommu.h> #include <asm/gart.h> @@ -34,7 +36,7 @@ #define CMD_SET_TYPE(cmd, t) ((cmd)->data[1] |= ((t) << 28)) -#define EXIT_LOOP_COUNT 10000000 +#define LOOP_TIMEOUT 100000 static DEFINE_RWLOCK(amd_iommu_devtable_lock); @@ -57,7 +59,6 @@ struct iommu_cmd { u32 data[4]; }; -static void reset_iommu_command_buffer(struct amd_iommu *iommu); static void update_domain(struct protection_domain *domain); /**************************************************************************** @@ -322,8 +323,6 @@ static void iommu_print_event(struct amd_iommu *iommu, void *__evt) break; case EVENT_TYPE_ILL_CMD: printk("ILLEGAL_COMMAND_ERROR address=0x%016llx]\n", address); - iommu->reset_in_progress = true; - reset_iommu_command_buffer(iommu); dump_command(address); break; case EVENT_TYPE_CMD_HARD_ERR: @@ -367,7 +366,7 @@ static void iommu_poll_events(struct amd_iommu *iommu) spin_unlock_irqrestore(&iommu->lock, flags); } -irqreturn_t amd_iommu_int_handler(int irq, void *data) +irqreturn_t amd_iommu_int_thread(int irq, void *data) { struct amd_iommu *iommu; @@ -377,192 +376,300 @@ irqreturn_t amd_iommu_int_handler(int irq, void *data) return IRQ_HANDLED; } +irqreturn_t amd_iommu_int_handler(int irq, void *data) +{ + return IRQ_WAKE_THREAD; +} + /**************************************************************************** * * IOMMU command queuing functions * ****************************************************************************/ -/* - * Writes the command to the IOMMUs command buffer and informs the - * hardware about the new command. Must be called with iommu->lock held. - */ -static int __iommu_queue_command(struct amd_iommu *iommu, struct iommu_cmd *cmd) +static int wait_on_sem(volatile u64 *sem) +{ + int i = 0; + + while (*sem == 0 && i < LOOP_TIMEOUT) { + udelay(1); + i += 1; + } + + if (i == LOOP_TIMEOUT) { + pr_alert("AMD-Vi: Completion-Wait loop timed out\n"); + return -EIO; + } + + return 0; +} + +static void copy_cmd_to_buffer(struct amd_iommu *iommu, + struct iommu_cmd *cmd, + u32 tail) { - u32 tail, head; u8 *target; - WARN_ON(iommu->cmd_buf_size & CMD_BUFFER_UNINITIALIZED); - tail = readl(iommu->mmio_base + MMIO_CMD_TAIL_OFFSET); target = iommu->cmd_buf + tail; - memcpy_toio(target, cmd, sizeof(*cmd)); - tail = (tail + sizeof(*cmd)) % iommu->cmd_buf_size; - head = readl(iommu->mmio_base + MMIO_CMD_HEAD_OFFSET); - if (tail == head) - return -ENOMEM; + tail = (tail + sizeof(*cmd)) % iommu->cmd_buf_size; + + /* Copy command to buffer */ + memcpy(target, cmd, sizeof(*cmd)); + + /* Tell the IOMMU about it */ writel(tail, iommu->mmio_base + MMIO_CMD_TAIL_OFFSET); +} - return 0; +static void build_completion_wait(struct iommu_cmd *cmd, u64 address) +{ + WARN_ON(address & 0x7ULL); + + memset(cmd, 0, sizeof(*cmd)); + cmd->data[0] = lower_32_bits(__pa(address)) | CMD_COMPL_WAIT_STORE_MASK; + cmd->data[1] = upper_32_bits(__pa(address)); + cmd->data[2] = 1; + CMD_SET_TYPE(cmd, CMD_COMPL_WAIT); +} + +static void build_inv_dte(struct iommu_cmd *cmd, u16 devid) +{ + memset(cmd, 0, sizeof(*cmd)); + cmd->data[0] = devid; + CMD_SET_TYPE(cmd, CMD_INV_DEV_ENTRY); +} + +static void build_inv_iommu_pages(struct iommu_cmd *cmd, u64 address, + size_t size, u16 domid, int pde) +{ + u64 pages; + int s; + + pages = iommu_num_pages(address, size, PAGE_SIZE); + s = 0; + + if (pages > 1) { + /* + * If we have to flush more than one page, flush all + * TLB entries for this domain + */ + address = CMD_INV_IOMMU_ALL_PAGES_ADDRESS; + s = 1; + } + + address &= PAGE_MASK; + + memset(cmd, 0, sizeof(*cmd)); + cmd->data[1] |= domid; + cmd->data[2] = lower_32_bits(address); + cmd->data[3] = upper_32_bits(address); + CMD_SET_TYPE(cmd, CMD_INV_IOMMU_PAGES); + if (s) /* size bit - we flush more than one 4kb page */ + cmd->data[2] |= CMD_INV_IOMMU_PAGES_SIZE_MASK; + if (pde) /* PDE bit - we wan't flush everything not only the PTEs */ + cmd->data[2] |= CMD_INV_IOMMU_PAGES_PDE_MASK; +} + +static void build_inv_iotlb_pages(struct iommu_cmd *cmd, u16 devid, int qdep, + u64 address, size_t size) +{ + u64 pages; + int s; + + pages = iommu_num_pages(address, size, PAGE_SIZE); + s = 0; + + if (pages > 1) { + /* + * If we have to flush more than one page, flush all + * TLB entries for this domain + */ + address = CMD_INV_IOMMU_ALL_PAGES_ADDRESS; + s = 1; + } + + address &= PAGE_MASK; + + memset(cmd, 0, sizeof(*cmd)); + cmd->data[0] = devid; + cmd->data[0] |= (qdep & 0xff) << 24; + cmd->data[1] = devid; + cmd->data[2] = lower_32_bits(address); + cmd->data[3] = upper_32_bits(address); + CMD_SET_TYPE(cmd, CMD_INV_IOTLB_PAGES); + if (s) + cmd->data[2] |= CMD_INV_IOMMU_PAGES_SIZE_MASK; +} + +static void build_inv_all(struct iommu_cmd *cmd) +{ + memset(cmd, 0, sizeof(*cmd)); + CMD_SET_TYPE(cmd, CMD_INV_ALL); } /* - * General queuing function for commands. Takes iommu->lock and calls - * __iommu_queue_command(). + * Writes the command to the IOMMUs command buffer and informs the + * hardware about the new command. */ static int iommu_queue_command(struct amd_iommu *iommu, struct iommu_cmd *cmd) { + u32 left, tail, head, next_tail; unsigned long flags; - int ret; + WARN_ON(iommu->cmd_buf_size & CMD_BUFFER_UNINITIALIZED); + +again: spin_lock_irqsave(&iommu->lock, flags); - ret = __iommu_queue_command(iommu, cmd); - if (!ret) - iommu->need_sync = true; - spin_unlock_irqrestore(&iommu->lock, flags); - return ret; -} + head = readl(iommu->mmio_base + MMIO_CMD_HEAD_OFFSET); + tail = readl(iommu->mmio_base + MMIO_CMD_TAIL_OFFSET); + next_tail = (tail + sizeof(*cmd)) % iommu->cmd_buf_size; + left = (head - next_tail) % iommu->cmd_buf_size; -/* - * This function waits until an IOMMU has completed a completion - * wait command - */ -static void __iommu_wait_for_completion(struct amd_iommu *iommu) -{ - int ready = 0; - unsigned status = 0; - unsigned long i = 0; + if (left <= 2) { + struct iommu_cmd sync_cmd; + volatile u64 sem = 0; + int ret; - INC_STATS_COUNTER(compl_wait); + build_completion_wait(&sync_cmd, (u64)&sem); + copy_cmd_to_buffer(iommu, &sync_cmd, tail); - while (!ready && (i < EXIT_LOOP_COUNT)) { - ++i; - /* wait for the bit to become one */ - status = readl(iommu->mmio_base + MMIO_STATUS_OFFSET); - ready = status & MMIO_STATUS_COM_WAIT_INT_MASK; + spin_unlock_irqrestore(&iommu->lock, flags); + + if ((ret = wait_on_sem(&sem)) != 0) + return ret; + + goto again; } - /* set bit back to zero */ - status &= ~MMIO_STATUS_COM_WAIT_INT_MASK; - writel(status, iommu->mmio_base + MMIO_STATUS_OFFSET); + copy_cmd_to_buffer(iommu, cmd, tail); + + /* We need to sync now to make sure all commands are processed */ + iommu->need_sync = true; + + spin_unlock_irqrestore(&iommu->lock, flags); - if (unlikely(i == EXIT_LOOP_COUNT)) - iommu->reset_in_progress = true; + return 0; } /* * This function queues a completion wait command into the command * buffer of an IOMMU */ -static int __iommu_completion_wait(struct amd_iommu *iommu) +static int iommu_completion_wait(struct amd_iommu *iommu) { struct iommu_cmd cmd; + volatile u64 sem = 0; + int ret; - memset(&cmd, 0, sizeof(cmd)); - cmd.data[0] = CMD_COMPL_WAIT_INT_MASK; - CMD_SET_TYPE(&cmd, CMD_COMPL_WAIT); + if (!iommu->need_sync) + return 0; - return __iommu_queue_command(iommu, &cmd); + build_completion_wait(&cmd, (u64)&sem); + + ret = iommu_queue_command(iommu, &cmd); + if (ret) + return ret; + + return wait_on_sem(&sem); } -/* - * This function is called whenever we need to ensure that the IOMMU has - * completed execution of all commands we sent. It sends a - * COMPLETION_WAIT command and waits for it to finish. The IOMMU informs - * us about that by writing a value to a physical address we pass with - * the command. - */ -static int iommu_completion_wait(struct amd_iommu *iommu) +static int iommu_flush_dte(struct amd_iommu *iommu, u16 devid) { - int ret = 0; - unsigned long flags; + struct iommu_cmd cmd; - spin_lock_irqsave(&iommu->lock, flags); + build_inv_dte(&cmd, devid); - if (!iommu->need_sync) - goto out; + return iommu_queue_command(iommu, &cmd); +} - ret = __iommu_completion_wait(iommu); +static void iommu_flush_dte_all(struct amd_iommu *iommu) +{ + u32 devid; - iommu->need_sync = false; + for (devid = 0; devid <= 0xffff; ++devid) + iommu_flush_dte(iommu, devid); - if (ret) - goto out; - - __iommu_wait_for_completion(iommu); + iommu_completion_wait(iommu); +} -out: - spin_unlock_irqrestore(&iommu->lock, flags); +/* + * This function uses heavy locking and may disable irqs for some time. But + * this is no issue because it is only called during resume. + */ +static void iommu_flush_tlb_all(struct amd_iommu *iommu) +{ + u32 dom_id; - if (iommu->reset_in_progress) - reset_iommu_command_buffer(iommu); + for (dom_id = 0; dom_id <= 0xffff; ++dom_id) { + struct iommu_cmd cmd; + build_inv_iommu_pages(&cmd, 0, CMD_INV_IOMMU_ALL_PAGES_ADDRESS, + dom_id, 1); + iommu_queue_command(iommu, &cmd); + } - return 0; + iommu_completion_wait(iommu); } -static void iommu_flush_complete(struct protection_domain *domain) +static void iommu_flush_all(struct amd_iommu *iommu) { - int i; + struct iommu_cmd cmd; - for (i = 0; i < amd_iommus_present; ++i) { - if (!domain->dev_iommu[i]) - continue; + build_inv_all(&cmd); - /* - * Devices of this domain are behind this IOMMU - * We need to wait for completion of all commands. - */ - iommu_completion_wait(amd_iommus[i]); + iommu_queue_command(iommu, &cmd); + iommu_completion_wait(iommu); +} + +void iommu_flush_all_caches(struct amd_iommu *iommu) +{ + if (iommu_feature(iommu, FEATURE_IA)) { + iommu_flush_all(iommu); + } else { + iommu_flush_dte_all(iommu); + iommu_flush_tlb_all(iommu); } } /* - * Command send function for invalidating a device table entry + * Command send function for flushing on-device TLB */ -static int iommu_flush_device(struct device *dev) +static int device_flush_iotlb(struct device *dev, u64 address, size_t size) { + struct pci_dev *pdev = to_pci_dev(dev); struct amd_iommu *iommu; struct iommu_cmd cmd; u16 devid; + int qdep; + qdep = pci_ats_queue_depth(pdev); devid = get_device_id(dev); iommu = amd_iommu_rlookup_table[devid]; - /* Build command */ - memset(&cmd, 0, sizeof(cmd)); - CMD_SET_TYPE(&cmd, CMD_INV_DEV_ENTRY); - cmd.data[0] = devid; + build_inv_iotlb_pages(&cmd, devid, qdep, address, size); return iommu_queue_command(iommu, &cmd); } -static void __iommu_build_inv_iommu_pages(struct iommu_cmd *cmd, u64 address, - u16 domid, int pde, int s) -{ - memset(cmd, 0, sizeof(*cmd)); - address &= PAGE_MASK; - CMD_SET_TYPE(cmd, CMD_INV_IOMMU_PAGES); - cmd->data[1] |= domid; - cmd->data[2] = lower_32_bits(address); - cmd->data[3] = upper_32_bits(address); - if (s) /* size bit - we flush more than one 4kb page */ - cmd->data[2] |= CMD_INV_IOMMU_PAGES_SIZE_MASK; - if (pde) /* PDE bit - we wan't flush everything not only the PTEs */ - cmd->data[2] |= CMD_INV_IOMMU_PAGES_PDE_MASK; -} - /* - * Generic command send function for invalidaing TLB entries + * Command send function for invalidating a device table entry */ -static int iommu_queue_inv_iommu_pages(struct amd_iommu *iommu, - u64 address, u16 domid, int pde, int s) +static int device_flush_dte(struct device *dev) { - struct iommu_cmd cmd; + struct amd_iommu *iommu; + struct pci_dev *pdev; + u16 devid; int ret; - __iommu_build_inv_iommu_pages(&cmd, address, domid, pde, s); + pdev = to_pci_dev(dev); + devid = get_device_id(dev); + iommu = amd_iommu_rlookup_table[devid]; - ret = iommu_queue_command(iommu, &cmd); + ret = iommu_flush_dte(iommu, devid); + if (ret) + return ret; + + if (pci_ats_enabled(pdev)) + ret = device_flush_iotlb(dev, 0, ~0UL); return ret; } @@ -572,23 +679,14 @@ static int iommu_queue_inv_iommu_pages(struct amd_iommu *iommu, * It invalidates a single PTE if the range to flush is within a single * page. Otherwise it flushes the whole TLB of the IOMMU. */ -static void __iommu_flush_pages(struct protection_domain *domain, - u64 address, size_t size, int pde) +static void __domain_flush_pages(struct protection_domain *domain, + u64 address, size_t size, int pde) { - int s = 0, i; - unsigned long pages = iommu_num_pages(address, size, PAGE_SIZE); - - address &= PAGE_MASK; - - if (pages > 1) { - /* - * If we have to flush more than one page, flush all - * TLB entries for this domain - */ - address = CMD_INV_IOMMU_ALL_PAGES_ADDRESS; - s = 1; - } + struct iommu_dev_data *dev_data; + struct iommu_cmd cmd; + int ret = 0, i; + build_inv_iommu_pages(&cmd, address, size, domain->id, pde); for (i = 0; i < amd_iommus_present; ++i) { if (!domain->dev_iommu[i]) @@ -598,101 +696,70 @@ static void __iommu_flush_pages(struct protection_domain *domain, * Devices of this domain are behind this IOMMU * We need a TLB flush */ - iommu_queue_inv_iommu_pages(amd_iommus[i], address, - domain->id, pde, s); + ret |= iommu_queue_command(amd_iommus[i], &cmd); + } + + list_for_each_entry(dev_data, &domain->dev_list, list) { + struct pci_dev *pdev = to_pci_dev(dev_data->dev); + + if (!pci_ats_enabled(pdev)) + continue; + + ret |= device_flush_iotlb(dev_data->dev, address, size); } - return; + WARN_ON(ret); } -static void iommu_flush_pages(struct protection_domain *domain, - u64 address, size_t size) +static void domain_flush_pages(struct protection_domain *domain, + u64 address, size_t size) { - __iommu_flush_pages(domain, address, size, 0); + __domain_flush_pages(domain, address, size, 0); } /* Flush the whole IO/TLB for a given protection domain */ -static void iommu_flush_tlb(struct protection_domain *domain) +static void domain_flush_tlb(struct protection_domain *domain) { - __iommu_flush_pages(domain, 0, CMD_INV_IOMMU_ALL_PAGES_ADDRESS, 0); + __domain_flush_pages(domain, 0, CMD_INV_IOMMU_ALL_PAGES_ADDRESS, 0); } /* Flush the whole IO/TLB for a given protection domain - including PDE */ -static void iommu_flush_tlb_pde(struct protection_domain *domain) +static void domain_flush_tlb_pde(struct protection_domain *domain) { - __iommu_flush_pages(domain, 0, CMD_INV_IOMMU_ALL_PAGES_ADDRESS, 1); -} - - -/* - * This function flushes the DTEs for all devices in domain - */ -static void iommu_flush_domain_devices(struct protection_domain *domain) -{ - struct iommu_dev_data *dev_data; - unsigned long flags; - - spin_lock_irqsave(&domain->lock, flags); - - list_for_each_entry(dev_data, &domain->dev_list, list) - iommu_flush_device(dev_data->dev); - - spin_unlock_irqrestore(&domain->lock, flags); + __domain_flush_pages(domain, 0, CMD_INV_IOMMU_ALL_PAGES_ADDRESS, 1); } -static void iommu_flush_all_domain_devices(void) +static void domain_flush_complete(struct protection_domain *domain) { - struct protection_domain *domain; - unsigned long flags; + int i; - spin_lock_irqsave(&amd_iommu_pd_lock, flags); + for (i = 0; i < amd_iommus_present; ++i) { + if (!domain->dev_iommu[i]) + continue; - list_for_each_entry(domain, &amd_iommu_pd_list, list) { - iommu_flush_domain_devices(domain); - iommu_flush_complete(domain); + /* + * Devices of this domain are behind this IOMMU + * We need to wait for completion of all commands. + */ + iommu_completion_wait(amd_iommus[i]); } - - spin_unlock_irqrestore(&amd_iommu_pd_lock, flags); } -void amd_iommu_flush_all_devices(void) -{ - iommu_flush_all_domain_devices(); -} /* - * This function uses heavy locking and may disable irqs for some time. But - * this is no issue because it is only called during resume. + * This function flushes the DTEs for all devices in domain */ -void amd_iommu_flush_all_domains(void) +static void domain_flush_devices(struct protection_domain *domain) { - struct protection_domain *domain; + struct iommu_dev_data *dev_data; unsigned long flags; - spin_lock_irqsave(&amd_iommu_pd_lock, flags); - - list_for_each_entry(domain, &amd_iommu_pd_list, list) { - spin_lock(&domain->lock); - iommu_flush_tlb_pde(domain); - iommu_flush_complete(domain); - spin_unlock(&domain->lock); - } - - spin_unlock_irqrestore(&amd_iommu_pd_lock, flags); -} - -static void reset_iommu_command_buffer(struct amd_iommu *iommu) -{ - pr_err("AMD-Vi: Resetting IOMMU command buffer\n"); - - if (iommu->reset_in_progress) - panic("AMD-Vi: ILLEGAL_COMMAND_ERROR while resetting command buffer\n"); + spin_lock_irqsave(&domain->lock, flags); - amd_iommu_reset_cmd_buffer(iommu); - amd_iommu_flush_all_devices(); - amd_iommu_flush_all_domains(); + list_for_each_entry(dev_data, &domain->dev_list, list) + device_flush_dte(dev_data->dev); - iommu->reset_in_progress = false; + spin_unlock_irqrestore(&domain->lock, flags); } /**************************************************************************** @@ -1410,17 +1477,22 @@ static bool dma_ops_domain(struct protection_domain *domain) return domain->flags & PD_DMA_OPS_MASK; } -static void set_dte_entry(u16 devid, struct protection_domain *domain) +static void set_dte_entry(u16 devid, struct protection_domain *domain, bool ats) { u64 pte_root = virt_to_phys(domain->pt_root); + u32 flags = 0; pte_root |= (domain->mode & DEV_ENTRY_MODE_MASK) << DEV_ENTRY_MODE_SHIFT; pte_root |= IOMMU_PTE_IR | IOMMU_PTE_IW | IOMMU_PTE_P | IOMMU_PTE_TV; - amd_iommu_dev_table[devid].data[2] = domain->id; - amd_iommu_dev_table[devid].data[1] = upper_32_bits(pte_root); - amd_iommu_dev_table[devid].data[0] = lower_32_bits(pte_root); + if (ats) + flags |= DTE_FLAG_IOTLB; + + amd_iommu_dev_table[devid].data[3] |= flags; + amd_iommu_dev_table[devid].data[2] = domain->id; + amd_iommu_dev_table[devid].data[1] = upper_32_bits(pte_root); + amd_iommu_dev_table[devid].data[0] = lower_32_bits(pte_root); } static void clear_dte_entry(u16 devid) @@ -1437,34 +1509,42 @@ static void do_attach(struct device *dev, struct protection_domain *domain) { struct iommu_dev_data *dev_data; struct amd_iommu *iommu; + struct pci_dev *pdev; + bool ats = false; u16 devid; devid = get_device_id(dev); iommu = amd_iommu_rlookup_table[devid]; dev_data = get_dev_data(dev); + pdev = to_pci_dev(dev); + + if (amd_iommu_iotlb_sup) + ats = pci_ats_enabled(pdev); /* Update data structures */ dev_data->domain = domain; list_add(&dev_data->list, &domain->dev_list); - set_dte_entry(devid, domain); + set_dte_entry(devid, domain, ats); /* Do reference counting */ domain->dev_iommu[iommu->index] += 1; domain->dev_cnt += 1; /* Flush the DTE entry */ - iommu_flush_device(dev); + device_flush_dte(dev); } static void do_detach(struct device *dev) { struct iommu_dev_data *dev_data; struct amd_iommu *iommu; + struct pci_dev *pdev; u16 devid; devid = get_device_id(dev); iommu = amd_iommu_rlookup_table[devid]; dev_data = get_dev_data(dev); + pdev = to_pci_dev(dev); /* decrease reference counters */ dev_data->domain->dev_iommu[iommu->index] -= 1; @@ -1476,7 +1556,7 @@ static void do_detach(struct device *dev) clear_dte_entry(devid); /* Flush the DTE entry */ - iommu_flush_device(dev); + device_flush_dte(dev); } /* @@ -1539,9 +1619,13 @@ out_unlock: static int attach_device(struct device *dev, struct protection_domain *domain) { + struct pci_dev *pdev = to_pci_dev(dev); unsigned long flags; int ret; + if (amd_iommu_iotlb_sup) + pci_enable_ats(pdev, PAGE_SHIFT); + write_lock_irqsave(&amd_iommu_devtable_lock, flags); ret = __attach_device(dev, domain); write_unlock_irqrestore(&amd_iommu_devtable_lock, flags); @@ -1551,7 +1635,7 @@ static int attach_device(struct device *dev, * left the caches in the IOMMU dirty. So we have to flush * here to evict all dirty stuff. */ - iommu_flush_tlb_pde(domain); + domain_flush_tlb_pde(domain); return ret; } @@ -1598,12 +1682,16 @@ static void __detach_device(struct device *dev) */ static void detach_device(struct device *dev) { + struct pci_dev *pdev = to_pci_dev(dev); unsigned long flags; /* lock device table */ write_lock_irqsave(&amd_iommu_devtable_lock, flags); __detach_device(dev); write_unlock_irqrestore(&amd_iommu_devtable_lock, flags); + + if (amd_iommu_iotlb_sup && pci_ats_enabled(pdev)) + pci_disable_ats(pdev); } /* @@ -1692,7 +1780,7 @@ static int device_change_notifier(struct notifier_block *nb, goto out; } - iommu_flush_device(dev); + device_flush_dte(dev); iommu_completion_wait(iommu); out: @@ -1753,8 +1841,9 @@ static void update_device_table(struct protection_domain *domain) struct iommu_dev_data *dev_data; list_for_each_entry(dev_data, &domain->dev_list, list) { + struct pci_dev *pdev = to_pci_dev(dev_data->dev); u16 devid = get_device_id(dev_data->dev); - set_dte_entry(devid, domain); + set_dte_entry(devid, domain, pci_ats_enabled(pdev)); } } @@ -1764,8 +1853,9 @@ static void update_domain(struct protection_domain *domain) return; update_device_table(domain); - iommu_flush_domain_devices(domain); - iommu_flush_tlb_pde(domain); + + domain_flush_devices(domain); + domain_flush_tlb_pde(domain); domain->updated = false; } @@ -1924,10 +2014,10 @@ retry: ADD_STATS_COUNTER(alloced_io_mem, size); if (unlikely(dma_dom->need_flush && !amd_iommu_unmap_flush)) { - iommu_flush_tlb(&dma_dom->domain); + domain_flush_tlb(&dma_dom->domain); dma_dom->need_flush = false; } else if (unlikely(amd_iommu_np_cache)) - iommu_flush_pages(&dma_dom->domain, address, size); + domain_flush_pages(&dma_dom->domain, address, size); out: return address; @@ -1976,7 +2066,7 @@ static void __unmap_single(struct dma_ops_domain *dma_dom, dma_ops_free_addresses(dma_dom, dma_addr, pages); if (amd_iommu_unmap_flush || dma_dom->need_flush) { - iommu_flush_pages(&dma_dom->domain, flush_addr, size); + domain_flush_pages(&dma_dom->domain, flush_addr, size); dma_dom->need_flush = false; } } @@ -2012,7 +2102,7 @@ static dma_addr_t map_page(struct device *dev, struct page *page, if (addr == DMA_ERROR_CODE) goto out; - iommu_flush_complete(domain); + domain_flush_complete(domain); out: spin_unlock_irqrestore(&domain->lock, flags); @@ -2039,7 +2129,7 @@ static void unmap_page(struct device *dev, dma_addr_t dma_addr, size_t size, __unmap_single(domain->priv, dma_addr, size, dir); - iommu_flush_complete(domain); + domain_flush_complete(domain); spin_unlock_irqrestore(&domain->lock, flags); } @@ -2104,7 +2194,7 @@ static int map_sg(struct device *dev, struct scatterlist *sglist, goto unmap; } - iommu_flush_complete(domain); + domain_flush_complete(domain); out: spin_unlock_irqrestore(&domain->lock, flags); @@ -2150,7 +2240,7 @@ static void unmap_sg(struct device *dev, struct scatterlist *sglist, s->dma_address = s->dma_length = 0; } - iommu_flush_complete(domain); + domain_flush_complete(domain); spin_unlock_irqrestore(&domain->lock, flags); } @@ -2200,7 +2290,7 @@ static void *alloc_coherent(struct device *dev, size_t size, goto out_free; } - iommu_flush_complete(domain); + domain_flush_complete(domain); spin_unlock_irqrestore(&domain->lock, flags); @@ -2232,7 +2322,7 @@ static void free_coherent(struct device *dev, size_t size, __unmap_single(domain->priv, dma_addr, size, DMA_BIDIRECTIONAL); - iommu_flush_complete(domain); + domain_flush_complete(domain); spin_unlock_irqrestore(&domain->lock, flags); @@ -2476,7 +2566,7 @@ static void amd_iommu_detach_device(struct iommu_domain *dom, if (!iommu) return; - iommu_flush_device(dev); + device_flush_dte(dev); iommu_completion_wait(iommu); } @@ -2542,7 +2632,7 @@ static int amd_iommu_unmap(struct iommu_domain *dom, unsigned long iova, unmap_size = iommu_unmap_page(domain, iova, page_size); mutex_unlock(&domain->api_lock); - iommu_flush_tlb_pde(domain); + domain_flush_tlb_pde(domain); return get_order(unmap_size); } diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c index 246d727b65b..9179c21120a 100644 --- a/arch/x86/kernel/amd_iommu_init.c +++ b/arch/x86/kernel/amd_iommu_init.c @@ -137,6 +137,7 @@ int amd_iommus_present; /* IOMMUs have a non-present cache? */ bool amd_iommu_np_cache __read_mostly; +bool amd_iommu_iotlb_sup __read_mostly = true; /* * The ACPI table parsing functions set this variable on an error @@ -180,6 +181,12 @@ static u32 dev_table_size; /* size of the device table */ static u32 alias_table_size; /* size of the alias table */ static u32 rlookup_table_size; /* size if the rlookup table */ +/* + * This function flushes all internal caches of + * the IOMMU used by this driver. + */ +extern void iommu_flush_all_caches(struct amd_iommu *iommu); + static inline void update_last_devid(u16 devid) { if (devid > amd_iommu_last_bdf) @@ -293,9 +300,23 @@ static void iommu_feature_disable(struct amd_iommu *iommu, u8 bit) /* Function to enable the hardware */ static void iommu_enable(struct amd_iommu *iommu) { - printk(KERN_INFO "AMD-Vi: Enabling IOMMU at %s cap 0x%hx\n", + static const char * const feat_str[] = { + "PreF", "PPR", "X2APIC", "NX", "GT", "[5]", + "IA", "GA", "HE", "PC", NULL + }; + int i; + + printk(KERN_INFO "AMD-Vi: Enabling IOMMU at %s cap 0x%hx", dev_name(&iommu->dev->dev), iommu->cap_ptr); + if (iommu->cap & (1 << IOMMU_CAP_EFR)) { + printk(KERN_CONT " extended features: "); + for (i = 0; feat_str[i]; ++i) + if (iommu_feature(iommu, (1ULL << i))) + printk(KERN_CONT " %s", feat_str[i]); + } + printk(KERN_CONT "\n"); + iommu_feature_enable(iommu, CONTROL_IOMMU_EN); } @@ -651,7 +672,7 @@ static void __init set_device_exclusion_range(u16 devid, struct ivmd_header *m) static void __init init_iommu_from_pci(struct amd_iommu *iommu) { int cap_ptr = iommu->cap_ptr; - u32 range, misc; + u32 range, misc, low, high; int i, j; pci_read_config_dword(iommu->dev, cap_ptr + MMIO_CAP_HDR_OFFSET, @@ -667,6 +688,15 @@ static void __init init_iommu_from_pci(struct amd_iommu *iommu) MMIO_GET_LD(range)); iommu->evt_msi_num = MMIO_MSI_NUM(misc); + if (!(iommu->cap & (1 << IOMMU_CAP_IOTLB))) + amd_iommu_iotlb_sup = false; + + /* read extended feature bits */ + low = readl(iommu->mmio_base + MMIO_EXT_FEATURES); + high = readl(iommu->mmio_base + MMIO_EXT_FEATURES + 4); + + iommu->features = ((u64)high << 32) | low; + if (!is_rd890_iommu(iommu->dev)) return; @@ -1004,10 +1034,11 @@ static int iommu_setup_msi(struct amd_iommu *iommu) if (pci_enable_msi(iommu->dev)) return 1; - r = request_irq(iommu->dev->irq, amd_iommu_int_handler, - IRQF_SAMPLE_RANDOM, - "AMD-Vi", - NULL); + r = request_threaded_irq(iommu->dev->irq, + amd_iommu_int_handler, + amd_iommu_int_thread, + 0, "AMD-Vi", + iommu->dev); if (r) { pci_disable_msi(iommu->dev); @@ -1244,6 +1275,7 @@ static void enable_iommus(void) iommu_set_exclusion_range(iommu); iommu_init_msi(iommu); iommu_enable(iommu); + iommu_flush_all_caches(iommu); } } @@ -1274,8 +1306,8 @@ static void amd_iommu_resume(void) * we have to flush after the IOMMUs are enabled because a * disabled IOMMU will never execute the commands we send */ - amd_iommu_flush_all_devices(); - amd_iommu_flush_all_domains(); + for_each_iommu(iommu) + iommu_flush_all_caches(iommu); } static int amd_iommu_suspend(void) diff --git a/arch/x86/kernel/apb_timer.c b/arch/x86/kernel/apb_timer.c index cd1ffed4ee2..289e92862fd 100644 --- a/arch/x86/kernel/apb_timer.c +++ b/arch/x86/kernel/apb_timer.c @@ -177,7 +177,6 @@ static struct clocksource clocksource_apbt = { .rating = APBT_CLOCKSOURCE_RATING, .read = apbt_read_clocksource, .mask = APBT_MASK, - .shift = APBT_SHIFT, .flags = CLOCK_SOURCE_IS_CONTINUOUS, .resume = apbt_restart_clocksource, }; @@ -543,14 +542,7 @@ static int apbt_clocksource_register(void) if (t1 == apbt_read_clocksource(&clocksource_apbt)) panic("APBT counter not counting. APBT disabled\n"); - /* - * initialize and register APBT clocksource - * convert that to ns/clock cycle - * mult = (ns/c) * 2^APBT_SHIFT - */ - clocksource_apbt.mult = div_sc(MSEC_PER_SEC, - (unsigned long) apbt_freq, APBT_SHIFT); - clocksource_register(&clocksource_apbt); + clocksource_register_khz(&clocksource_apbt, (u32)apbt_freq*1000); return 0; } diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c index 73fb469908c..3d2661ca654 100644 --- a/arch/x86/kernel/aperture_64.c +++ b/arch/x86/kernel/aperture_64.c @@ -30,6 +30,22 @@ #include <asm/amd_nb.h> #include <asm/x86_init.h> +/* + * Using 512M as goal, in case kexec will load kernel_big + * that will do the on-position decompress, and could overlap with + * with the gart aperture that is used. + * Sequence: + * kernel_small + * ==> kexec (with kdump trigger path or gart still enabled) + * ==> kernel_small (gart area become e820_reserved) + * ==> kexec (with kdump trigger path or gart still enabled) + * ==> kerne_big (uncompressed size will be big than 64M or 128M) + * So don't use 512M below as gart iommu, leave the space for kernel + * code for safe. + */ +#define GART_MIN_ADDR (512ULL << 20) +#define GART_MAX_ADDR (1ULL << 32) + int gart_iommu_aperture; int gart_iommu_aperture_disabled __initdata; int gart_iommu_aperture_allowed __initdata; @@ -70,21 +86,9 @@ static u32 __init allocate_aperture(void) * memory. Unfortunately we cannot move it up because that would * make the IOMMU useless. */ - /* - * using 512M as goal, in case kexec will load kernel_big - * that will do the on position decompress, and could overlap with - * that position with gart that is used. - * sequende: - * kernel_small - * ==> kexec (with kdump trigger path or previous doesn't shutdown gart) - * ==> kernel_small(gart area become e820_reserved) - * ==> kexec (with kdump trigger path or previous doesn't shutdown gart) - * ==> kerne_big (uncompressed size will be big than 64M or 128M) - * so don't use 512M below as gart iommu, leave the space for kernel - * code for safe - */ - addr = memblock_find_in_range(0, 1ULL<<32, aper_size, 512ULL<<20); - if (addr == MEMBLOCK_ERROR || addr + aper_size > 0xffffffff) { + addr = memblock_find_in_range(GART_MIN_ADDR, GART_MAX_ADDR, + aper_size, aper_size); + if (addr == MEMBLOCK_ERROR || addr + aper_size > GART_MAX_ADDR) { printk(KERN_ERR "Cannot allocate aperture memory hole (%lx,%uK)\n", addr, aper_size>>10); diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c index fabf01eff77..f92a8e5d1e2 100644 --- a/arch/x86/kernel/apic/apic.c +++ b/arch/x86/kernel/apic/apic.c @@ -505,7 +505,7 @@ static void __cpuinit setup_APIC_timer(void) { struct clock_event_device *levt = &__get_cpu_var(lapic_events); - if (cpu_has(__this_cpu_ptr(&cpu_info), X86_FEATURE_ARAT)) { + if (this_cpu_has(X86_FEATURE_ARAT)) { lapic_clockevent.features &= ~CLOCK_EVT_FEAT_C3STOP; /* Make LAPIC timer preferrable over percpu HPET */ lapic_clockevent.rating = 150; @@ -1237,6 +1237,17 @@ void __cpuinit setup_local_APIC(void) /* always use the value from LDR */ early_per_cpu(x86_cpu_to_logical_apicid, cpu) = logical_smp_processor_id(); + + /* + * Some NUMA implementations (NUMAQ) don't initialize apicid to + * node mapping during NUMA init. Now that logical apicid is + * guaranteed to be known, give it another chance. This is already + * a bit too late - percpu allocation has already happened without + * proper NUMA affinity. + */ + if (apic->x86_32_numa_cpu_node) + set_apicid_to_node(early_per_cpu(x86_cpu_to_apicid, cpu), + apic->x86_32_numa_cpu_node(cpu)); #endif /* @@ -1812,30 +1823,41 @@ void smp_spurious_interrupt(struct pt_regs *regs) */ void smp_error_interrupt(struct pt_regs *regs) { - u32 v, v1; + u32 v0, v1; + u32 i = 0; + static const char * const error_interrupt_reason[] = { + "Send CS error", /* APIC Error Bit 0 */ + "Receive CS error", /* APIC Error Bit 1 */ + "Send accept error", /* APIC Error Bit 2 */ + "Receive accept error", /* APIC Error Bit 3 */ + "Redirectable IPI", /* APIC Error Bit 4 */ + "Send illegal vector", /* APIC Error Bit 5 */ + "Received illegal vector", /* APIC Error Bit 6 */ + "Illegal register address", /* APIC Error Bit 7 */ + }; exit_idle(); irq_enter(); /* First tickle the hardware, only then report what went on. -- REW */ - v = apic_read(APIC_ESR); + v0 = apic_read(APIC_ESR); apic_write(APIC_ESR, 0); v1 = apic_read(APIC_ESR); ack_APIC_irq(); atomic_inc(&irq_err_count); - /* - * Here is what the APIC error bits mean: - * 0: Send CS error - * 1: Receive CS error - * 2: Send accept error - * 3: Receive accept error - * 4: Reserved - * 5: Send illegal vector - * 6: Received illegal vector - * 7: Illegal register address - */ - pr_debug("APIC error on CPU%d: %02x(%02x)\n", - smp_processor_id(), v , v1); + apic_printk(APIC_DEBUG, KERN_DEBUG "APIC error on CPU%d: %02x(%02x)", + smp_processor_id(), v0 , v1); + + v1 = v1 & 0xff; + while (v1) { + if (v1 & 0x1) + apic_printk(APIC_DEBUG, KERN_CONT " : %s", error_interrupt_reason[i]); + i++; + v1 >>= 1; + }; + + apic_printk(APIC_DEBUG, KERN_CONT "\n"); + irq_exit(); } @@ -2003,21 +2025,6 @@ void default_init_apic_ldr(void) apic_write(APIC_LDR, val); } -#ifdef CONFIG_X86_32 -int default_x86_32_numa_cpu_node(int cpu) -{ -#ifdef CONFIG_NUMA - int apicid = early_per_cpu(x86_cpu_to_apicid, cpu); - - if (apicid != BAD_APICID) - return __apicid_to_node[apicid]; - return NUMA_NO_NODE; -#else - return 0; -#endif -} -#endif - /* * Power management */ diff --git a/arch/x86/kernel/apic/apic_noop.c b/arch/x86/kernel/apic/apic_noop.c index f1baa2dc087..775b82bc655 100644 --- a/arch/x86/kernel/apic/apic_noop.c +++ b/arch/x86/kernel/apic/apic_noop.c @@ -119,14 +119,6 @@ static void noop_apic_write(u32 reg, u32 v) WARN_ON_ONCE(cpu_has_apic && !disable_apic); } -#ifdef CONFIG_X86_32 -static int noop_x86_32_numa_cpu_node(int cpu) -{ - /* we're always on node 0 */ - return 0; -} -#endif - struct apic apic_noop = { .name = "noop", .probe = noop_probe, @@ -195,6 +187,5 @@ struct apic apic_noop = { #ifdef CONFIG_X86_32 .x86_32_early_logical_apicid = noop_x86_32_early_logical_apicid, - .x86_32_numa_cpu_node = noop_x86_32_numa_cpu_node, #endif }; diff --git a/arch/x86/kernel/apic/bigsmp_32.c b/arch/x86/kernel/apic/bigsmp_32.c index 541a2e43165..d84ac5a584b 100644 --- a/arch/x86/kernel/apic/bigsmp_32.c +++ b/arch/x86/kernel/apic/bigsmp_32.c @@ -253,5 +253,4 @@ struct apic apic_bigsmp = { .safe_wait_icr_idle = native_safe_apic_wait_icr_idle, .x86_32_early_logical_apicid = bigsmp_early_logical_apicid, - .x86_32_numa_cpu_node = default_x86_32_numa_cpu_node, }; diff --git a/arch/x86/kernel/apic/es7000_32.c b/arch/x86/kernel/apic/es7000_32.c index 3e9de4854c5..70533de5bd2 100644 --- a/arch/x86/kernel/apic/es7000_32.c +++ b/arch/x86/kernel/apic/es7000_32.c @@ -510,11 +510,6 @@ static void es7000_setup_apic_routing(void) nr_ioapics, cpumask_bits(es7000_target_cpus())[0]); } -static int es7000_numa_cpu_node(int cpu) -{ - return 0; -} - static int es7000_cpu_present_to_apicid(int mps_cpu) { if (!mps_cpu) @@ -688,7 +683,6 @@ struct apic __refdata apic_es7000_cluster = { .safe_wait_icr_idle = native_safe_apic_wait_icr_idle, .x86_32_early_logical_apicid = es7000_early_logical_apicid, - .x86_32_numa_cpu_node = es7000_numa_cpu_node, }; struct apic __refdata apic_es7000 = { @@ -752,5 +746,4 @@ struct apic __refdata apic_es7000 = { .safe_wait_icr_idle = native_safe_apic_wait_icr_idle, .x86_32_early_logical_apicid = es7000_early_logical_apicid, - .x86_32_numa_cpu_node = es7000_numa_cpu_node, }; diff --git a/arch/x86/kernel/apic/numaq_32.c b/arch/x86/kernel/apic/numaq_32.c index 6273eee5134..30f13319e24 100644 --- a/arch/x86/kernel/apic/numaq_32.c +++ b/arch/x86/kernel/apic/numaq_32.c @@ -48,8 +48,6 @@ #include <asm/e820.h> #include <asm/ipi.h> -#define MB_TO_PAGES(addr) ((addr) << (20 - PAGE_SHIFT)) - int found_numaq; /* @@ -79,31 +77,20 @@ int quad_local_to_mp_bus_id[NR_CPUS/4][4]; static inline void numaq_register_node(int node, struct sys_cfg_data *scd) { struct eachquadmem *eq = scd->eq + node; + u64 start = (u64)(eq->hi_shrd_mem_start - eq->priv_mem_size) << 20; + u64 end = (u64)(eq->hi_shrd_mem_start + eq->hi_shrd_mem_size) << 20; + int ret; - node_set_online(node); - - /* Convert to pages */ - node_start_pfn[node] = - MB_TO_PAGES(eq->hi_shrd_mem_start - eq->priv_mem_size); - - node_end_pfn[node] = - MB_TO_PAGES(eq->hi_shrd_mem_start + eq->hi_shrd_mem_size); - - memblock_x86_register_active_regions(node, node_start_pfn[node], - node_end_pfn[node]); - - memory_present(node, node_start_pfn[node], node_end_pfn[node]); - - node_remap_size[node] = node_memmap_size_bytes(node, - node_start_pfn[node], - node_end_pfn[node]); + node_set(node, numa_nodes_parsed); + ret = numa_add_memblk(node, start, end); + BUG_ON(ret < 0); } /* * Function: smp_dump_qct() * * Description: gets memory layout from the quad config table. This - * function also updates node_online_map with the nodes (quads) present. + * function also updates numa_nodes_parsed with the nodes (quads) present. */ static void __init smp_dump_qct(void) { @@ -112,7 +99,6 @@ static void __init smp_dump_qct(void) scd = (void *)__va(SYS_CFG_DATA_PRIV_ADDR); - nodes_clear(node_online_map); for_each_node(node) { if (scd->quads_present31_0 & (1 << node)) numaq_register_node(node, scd); @@ -282,14 +268,14 @@ static __init void early_check_numaq(void) } } -int __init get_memcfg_numaq(void) +int __init numaq_numa_init(void) { early_check_numaq(); if (!found_numaq) - return 0; + return -ENOENT; smp_dump_qct(); - return 1; + return 0; } #define NUMAQ_APIC_DFR_VALUE (APIC_DFR_CLUSTER) diff --git a/arch/x86/kernel/apic/probe_32.c b/arch/x86/kernel/apic/probe_32.c index fc84c7b6110..6541e471fd9 100644 --- a/arch/x86/kernel/apic/probe_32.c +++ b/arch/x86/kernel/apic/probe_32.c @@ -172,7 +172,6 @@ struct apic apic_default = { .safe_wait_icr_idle = native_safe_apic_wait_icr_idle, .x86_32_early_logical_apicid = default_x86_32_early_logical_apicid, - .x86_32_numa_cpu_node = default_x86_32_numa_cpu_node, }; extern struct apic apic_numaq; diff --git a/arch/x86/kernel/apic/summit_32.c b/arch/x86/kernel/apic/summit_32.c index e4b8059b414..35bcd7d995a 100644 --- a/arch/x86/kernel/apic/summit_32.c +++ b/arch/x86/kernel/apic/summit_32.c @@ -551,5 +551,4 @@ struct apic apic_summit = { .safe_wait_icr_idle = native_safe_apic_wait_icr_idle, .x86_32_early_logical_apicid = summit_early_logical_apicid, - .x86_32_numa_cpu_node = default_x86_32_numa_cpu_node, }; diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c index 33b10a0fc09..7acd2d2ac96 100644 --- a/arch/x86/kernel/apic/x2apic_uv_x.c +++ b/arch/x86/kernel/apic/x2apic_uv_x.c @@ -37,6 +37,13 @@ #include <asm/smp.h> #include <asm/x86_init.h> #include <asm/emergency-restart.h> +#include <asm/nmi.h> + +/* BMC sets a bit this MMR non-zero before sending an NMI */ +#define UVH_NMI_MMR UVH_SCRATCH5 +#define UVH_NMI_MMR_CLEAR (UVH_NMI_MMR + 8) +#define UV_NMI_PENDING_MASK (1UL << 63) +DEFINE_PER_CPU(unsigned long, cpu_last_nmi_count); DEFINE_PER_CPU(int, x2apic_extra_bits); @@ -642,18 +649,46 @@ void __cpuinit uv_cpu_init(void) */ int uv_handle_nmi(struct notifier_block *self, unsigned long reason, void *data) { + unsigned long real_uv_nmi; + int bid; + if (reason != DIE_NMIUNKNOWN) return NOTIFY_OK; if (in_crash_kexec) /* do nothing if entering the crash kernel */ return NOTIFY_OK; + /* - * Use a lock so only one cpu prints at a time - * to prevent intermixed output. + * Each blade has an MMR that indicates when an NMI has been sent + * to cpus on the blade. If an NMI is detected, atomically + * clear the MMR and update a per-blade NMI count used to + * cause each cpu on the blade to notice a new NMI. + */ + bid = uv_numa_blade_id(); + real_uv_nmi = (uv_read_local_mmr(UVH_NMI_MMR) & UV_NMI_PENDING_MASK); + + if (unlikely(real_uv_nmi)) { + spin_lock(&uv_blade_info[bid].nmi_lock); + real_uv_nmi = (uv_read_local_mmr(UVH_NMI_MMR) & UV_NMI_PENDING_MASK); + if (real_uv_nmi) { + uv_blade_info[bid].nmi_count++; + uv_write_local_mmr(UVH_NMI_MMR_CLEAR, UV_NMI_PENDING_MASK); + } + spin_unlock(&uv_blade_info[bid].nmi_lock); + } + + if (likely(__get_cpu_var(cpu_last_nmi_count) == uv_blade_info[bid].nmi_count)) + return NOTIFY_DONE; + + __get_cpu_var(cpu_last_nmi_count) = uv_blade_info[bid].nmi_count; + + /* + * Use a lock so only one cpu prints at a time. + * This prevents intermixed output. */ spin_lock(&uv_nmi_lock); - pr_info("NMI stack dump cpu %u:\n", smp_processor_id()); + pr_info("UV NMI stack dump cpu %u:\n", smp_processor_id()); dump_stack(); spin_unlock(&uv_nmi_lock); @@ -661,7 +696,8 @@ int uv_handle_nmi(struct notifier_block *self, unsigned long reason, void *data) } static struct notifier_block uv_dump_stack_nmi_nb = { - .notifier_call = uv_handle_nmi + .notifier_call = uv_handle_nmi, + .priority = NMI_LOCAL_LOW_PRIOR - 1, }; void uv_register_nmi_notifier(void) @@ -720,8 +756,9 @@ void __init uv_system_init(void) printk(KERN_DEBUG "UV: Found %d blades\n", uv_num_possible_blades()); bytes = sizeof(struct uv_blade_info) * uv_num_possible_blades(); - uv_blade_info = kmalloc(bytes, GFP_KERNEL); + uv_blade_info = kzalloc(bytes, GFP_KERNEL); BUG_ON(!uv_blade_info); + for (blade = 0; blade < uv_num_possible_blades(); blade++) uv_blade_info[blade].memory_nid = -1; @@ -747,6 +784,7 @@ void __init uv_system_init(void) uv_blade_info[blade].pnode = pnode; uv_blade_info[blade].nr_possible_cpus = 0; uv_blade_info[blade].nr_online_cpus = 0; + spin_lock_init(&uv_blade_info[blade].nmi_lock); max_pnode = max(pnode, max_pnode); blade++; } diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c index adee12e0da1..3bfa0223596 100644 --- a/arch/x86/kernel/apm_32.c +++ b/arch/x86/kernel/apm_32.c @@ -1238,7 +1238,6 @@ static int suspend(int vetoable) dpm_suspend_noirq(PMSG_SUSPEND); local_irq_disable(); - sysdev_suspend(PMSG_SUSPEND); syscore_suspend(); local_irq_enable(); @@ -1258,7 +1257,6 @@ static int suspend(int vetoable) err = (err == APM_SUCCESS) ? 0 : -EIO; syscore_resume(); - sysdev_resume(); local_irq_enable(); dpm_resume_noirq(PMSG_RESUME); @@ -1282,7 +1280,6 @@ static void standby(void) dpm_suspend_noirq(PMSG_SUSPEND); local_irq_disable(); - sysdev_suspend(PMSG_SUSPEND); syscore_suspend(); local_irq_enable(); @@ -1292,7 +1289,6 @@ static void standby(void) local_irq_disable(); syscore_resume(); - sysdev_resume(); local_irq_enable(); dpm_resume_noirq(PMSG_RESUME); diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile index 3f0ebe429a0..6042981d030 100644 --- a/arch/x86/kernel/cpu/Makefile +++ b/arch/x86/kernel/cpu/Makefile @@ -30,7 +30,6 @@ obj-$(CONFIG_PERF_EVENTS) += perf_event.o obj-$(CONFIG_X86_MCE) += mcheck/ obj-$(CONFIG_MTRR) += mtrr/ -obj-$(CONFIG_CPU_FREQ) += cpufreq/ obj-$(CONFIG_X86_LOCAL_APIC) += perfctr-watchdog.o diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c index bb9eb29a52d..6f9d1f6063e 100644 --- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c @@ -613,7 +613,7 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c) #endif /* As a rule processors have APIC timer running in deep C states */ - if (c->x86 >= 0xf && !cpu_has_amd_erratum(amd_erratum_400)) + if (c->x86 > 0xf && !cpu_has_amd_erratum(amd_erratum_400)) set_cpu_cap(c, X86_FEATURE_ARAT); /* @@ -698,7 +698,7 @@ cpu_dev_register(amd_cpu_dev); */ const int amd_erratum_400[] = - AMD_OSVW_ERRATUM(1, AMD_MODEL_RANGE(0x0f, 0x4, 0x2, 0xff, 0xf), + AMD_OSVW_ERRATUM(1, AMD_MODEL_RANGE(0xf, 0x41, 0x2, 0xff, 0xf), AMD_MODEL_RANGE(0x10, 0x2, 0x1, 0xff, 0xf)); EXPORT_SYMBOL_GPL(amd_erratum_400); diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index e2ced0074a4..cbc70a27430 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -254,6 +254,25 @@ static inline void squash_the_stupid_serial_number(struct cpuinfo_x86 *c) } #endif +static int disable_smep __initdata; +static __init int setup_disable_smep(char *arg) +{ + disable_smep = 1; + return 1; +} +__setup("nosmep", setup_disable_smep); + +static __init void setup_smep(struct cpuinfo_x86 *c) +{ + if (cpu_has(c, X86_FEATURE_SMEP)) { + if (unlikely(disable_smep)) { + setup_clear_cpu_cap(X86_FEATURE_SMEP); + clear_in_cr4(X86_CR4_SMEP); + } else + set_in_cr4(X86_CR4_SMEP); + } +} + /* * Some CPU features depend on higher CPUID levels, which may not always * be available due to CPUID level capping or broken virtualization @@ -565,8 +584,7 @@ void __cpuinit get_cpu_cap(struct cpuinfo_x86 *c) cpuid_count(0x00000007, 0, &eax, &ebx, &ecx, &edx); - if (eax > 0) - c->x86_capability[9] = ebx; + c->x86_capability[9] = ebx; } /* AMD-defined flags: level 0x80000001 */ @@ -668,6 +686,8 @@ static void __init early_identify_cpu(struct cpuinfo_x86 *c) c->cpu_index = 0; #endif filter_cpuid_features(c, false); + + setup_smep(c); } void __init early_cpu_init(void) @@ -753,6 +773,8 @@ static void __cpuinit generic_identify(struct cpuinfo_x86 *c) #endif } + setup_smep(c); + get_model_name(c); /* Default name */ detect_nopl(c); diff --git a/arch/x86/kernel/cpu/cpufreq/Makefile b/arch/x86/kernel/cpu/cpufreq/Makefile deleted file mode 100644 index bd54bf67e6f..00000000000 --- a/arch/x86/kernel/cpu/cpufreq/Makefile +++ /dev/null @@ -1,21 +0,0 @@ -# Link order matters. K8 is preferred to ACPI because of firmware bugs in early -# K8 systems. ACPI is preferred to all other hardware-specific drivers. -# speedstep-* is preferred over p4-clockmod. - -obj-$(CONFIG_X86_POWERNOW_K8) += powernow-k8.o mperf.o -obj-$(CONFIG_X86_ACPI_CPUFREQ) += acpi-cpufreq.o mperf.o -obj-$(CONFIG_X86_PCC_CPUFREQ) += pcc-cpufreq.o -obj-$(CONFIG_X86_POWERNOW_K6) += powernow-k6.o -obj-$(CONFIG_X86_POWERNOW_K7) += powernow-k7.o -obj-$(CONFIG_X86_LONGHAUL) += longhaul.o -obj-$(CONFIG_X86_E_POWERSAVER) += e_powersaver.o -obj-$(CONFIG_ELAN_CPUFREQ) += elanfreq.o -obj-$(CONFIG_SC520_CPUFREQ) += sc520_freq.o -obj-$(CONFIG_X86_LONGRUN) += longrun.o -obj-$(CONFIG_X86_GX_SUSPMOD) += gx-suspmod.o -obj-$(CONFIG_X86_SPEEDSTEP_ICH) += speedstep-ich.o -obj-$(CONFIG_X86_SPEEDSTEP_LIB) += speedstep-lib.o -obj-$(CONFIG_X86_SPEEDSTEP_SMI) += speedstep-smi.o -obj-$(CONFIG_X86_SPEEDSTEP_CENTRINO) += speedstep-centrino.o -obj-$(CONFIG_X86_P4_CLOCKMOD) += p4-clockmod.o -obj-$(CONFIG_X86_CPUFREQ_NFORCE2) += cpufreq-nforce2.o diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c index df86bc8c859..1edf5ba4fb2 100644 --- a/arch/x86/kernel/cpu/intel.c +++ b/arch/x86/kernel/cpu/intel.c @@ -29,10 +29,10 @@ static void __cpuinit early_init_intel(struct cpuinfo_x86 *c) { + u64 misc_enable; + /* Unmask CPUID levels if masked: */ if (c->x86 > 6 || (c->x86 == 6 && c->x86_model >= 0xd)) { - u64 misc_enable; - rdmsrl(MSR_IA32_MISC_ENABLE, misc_enable); if (misc_enable & MSR_IA32_MISC_ENABLE_LIMIT_CPUID) { @@ -118,8 +118,6 @@ static void __cpuinit early_init_intel(struct cpuinfo_x86 *c) * (model 2) with the same problem. */ if (c->x86 == 15) { - u64 misc_enable; - rdmsrl(MSR_IA32_MISC_ENABLE, misc_enable); if (misc_enable & MSR_IA32_MISC_ENABLE_FAST_STRING) { @@ -130,6 +128,19 @@ static void __cpuinit early_init_intel(struct cpuinfo_x86 *c) } } #endif + + /* + * If fast string is not enabled in IA32_MISC_ENABLE for any reason, + * clear the fast string and enhanced fast string CPU capabilities. + */ + if (c->x86 > 6 || (c->x86 == 6 && c->x86_model >= 0xd)) { + rdmsrl(MSR_IA32_MISC_ENABLE, misc_enable); + if (!(misc_enable & MSR_IA32_MISC_ENABLE_FAST_STRING)) { + printk(KERN_INFO "Disabled fast string operations\n"); + setup_clear_cpu_cap(X86_FEATURE_REP_GOOD); + setup_clear_cpu_cap(X86_FEATURE_ERMS); + } + } } #ifdef CONFIG_X86_32 @@ -400,12 +411,10 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c) switch (c->x86_model) { case 5: - if (c->x86_mask == 0) { - if (l2 == 0) - p = "Celeron (Covington)"; - else if (l2 == 256) - p = "Mobile Pentium II (Dixon)"; - } + if (l2 == 0) + p = "Celeron (Covington)"; + else if (l2 == 256) + p = "Mobile Pentium II (Dixon)"; break; case 6: diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c index 1ce1af2899d..c105c533ed9 100644 --- a/arch/x86/kernel/cpu/intel_cacheinfo.c +++ b/arch/x86/kernel/cpu/intel_cacheinfo.c @@ -327,7 +327,6 @@ static void __cpuinit amd_calc_l3_indices(struct amd_l3_cache *l3) l3->subcaches[2] = sc2 = !(val & BIT(8)) + !(val & BIT(9)); l3->subcaches[3] = sc3 = !(val & BIT(12)) + !(val & BIT(13)); - l3->indices = (max(max(max(sc0, sc1), sc2), sc3) << 10) - 1; l3->indices = (max(max3(sc0, sc1, sc2), sc3) << 10) - 1; } @@ -454,27 +453,16 @@ int amd_set_l3_disable_slot(struct amd_l3_cache *l3, int cpu, unsigned slot, { int ret = 0; -#define SUBCACHE_MASK (3UL << 20) -#define SUBCACHE_INDEX 0xfff - - /* - * check whether this slot is already used or - * the index is already disabled - */ + /* check if @slot is already used or the index is already disabled */ ret = amd_get_l3_disable_slot(l3, slot); if (ret >= 0) return -EINVAL; - /* - * check whether the other slot has disabled the - * same index already - */ - if (index == amd_get_l3_disable_slot(l3, !slot)) + if (index > l3->indices) return -EINVAL; - /* do not allow writes outside of allowed bits */ - if ((index & ~(SUBCACHE_MASK | SUBCACHE_INDEX)) || - ((index & SUBCACHE_INDEX) > l3->indices)) + /* check whether the other slot has disabled the same index already */ + if (index == amd_get_l3_disable_slot(l3, !slot)) return -EINVAL; amd_l3_disable_index(l3, cpu, slot, index); diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c index 3385ea26f68..ff1ae9b6464 100644 --- a/arch/x86/kernel/cpu/mcheck/mce.c +++ b/arch/x86/kernel/cpu/mcheck/mce.c @@ -105,20 +105,6 @@ static int cpu_missing; ATOMIC_NOTIFIER_HEAD(x86_mce_decoder_chain); EXPORT_SYMBOL_GPL(x86_mce_decoder_chain); -static int default_decode_mce(struct notifier_block *nb, unsigned long val, - void *data) -{ - pr_emerg(HW_ERR "No human readable MCE decoding support on this CPU type.\n"); - pr_emerg(HW_ERR "Run the message through 'mcelog --ascii' to decode.\n"); - - return NOTIFY_STOP; -} - -static struct notifier_block mce_dec_nb = { - .notifier_call = default_decode_mce, - .priority = -1, -}; - /* MCA banks polled by the period polling timer for corrected events */ DEFINE_PER_CPU(mce_banks_t, mce_poll_banks) = { [0 ... BITS_TO_LONGS(MAX_NR_BANKS)-1] = ~0UL @@ -212,6 +198,8 @@ void mce_log(struct mce *mce) static void print_mce(struct mce *m) { + int ret = 0; + pr_emerg(HW_ERR "CPU %d: Machine Check Exception: %Lx Bank %d: %016Lx\n", m->extcpu, m->mcgstatus, m->bank, m->status); @@ -239,7 +227,11 @@ static void print_mce(struct mce *m) * Print out human-readable details about the MCE error, * (if the CPU has an implementation for that) */ - atomic_notifier_call_chain(&x86_mce_decoder_chain, 0, m); + ret = atomic_notifier_call_chain(&x86_mce_decoder_chain, 0, m); + if (ret == NOTIFY_STOP) + return; + + pr_emerg_ratelimited(HW_ERR "Run the above through 'mcelog --ascii'\n"); } #define PANIC_TIMEOUT 5 /* 5 seconds */ @@ -590,7 +582,6 @@ void machine_check_poll(enum mcp_flags flags, mce_banks_t *b) if (!(flags & MCP_DONTLOG) && !mce_dont_log_ce) { mce_log(&m); atomic_notifier_call_chain(&x86_mce_decoder_chain, 0, &m); - add_taint(TAINT_MACHINE_CHECK); } /* @@ -1722,8 +1713,6 @@ __setup("mce", mcheck_enable); int __init mcheck_init(void) { - atomic_notifier_chain_register(&x86_mce_decoder_chain, &mce_dec_nb); - mcheck_intel_therm_init(); return 0; diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd.c b/arch/x86/kernel/cpu/mcheck/mce_amd.c index 167f97b5596..bb0adad3514 100644 --- a/arch/x86/kernel/cpu/mcheck/mce_amd.c +++ b/arch/x86/kernel/cpu/mcheck/mce_amd.c @@ -509,6 +509,7 @@ recurse: out_free: if (b) { kobject_put(&b->kobj); + list_del(&b->miscj); kfree(b); } return err; diff --git a/arch/x86/kernel/cpu/mcheck/therm_throt.c b/arch/x86/kernel/cpu/mcheck/therm_throt.c index 6f8c5e9da97..27c625178bf 100644 --- a/arch/x86/kernel/cpu/mcheck/therm_throt.c +++ b/arch/x86/kernel/cpu/mcheck/therm_throt.c @@ -187,8 +187,6 @@ static int therm_throt_process(bool new_event, int event, int level) this_cpu, level == CORE_LEVEL ? "Core" : "Package", state->count); - - add_taint(TAINT_MACHINE_CHECK); return 1; } if (old_event) { @@ -355,7 +353,6 @@ static void notify_thresholds(__u64 msr_val) static void intel_thermal_interrupt(void) { __u64 msr_val; - struct cpuinfo_x86 *c = &cpu_data(smp_processor_id()); rdmsrl(MSR_IA32_THERM_STATUS, msr_val); @@ -367,19 +364,19 @@ static void intel_thermal_interrupt(void) CORE_LEVEL) != 0) mce_log_therm_throt_event(CORE_THROTTLED | msr_val); - if (cpu_has(c, X86_FEATURE_PLN)) + if (this_cpu_has(X86_FEATURE_PLN)) if (therm_throt_process(msr_val & THERM_STATUS_POWER_LIMIT, POWER_LIMIT_EVENT, CORE_LEVEL) != 0) mce_log_therm_throt_event(CORE_POWER_LIMIT | msr_val); - if (cpu_has(c, X86_FEATURE_PTS)) { + if (this_cpu_has(X86_FEATURE_PTS)) { rdmsrl(MSR_IA32_PACKAGE_THERM_STATUS, msr_val); if (therm_throt_process(msr_val & PACKAGE_THERM_STATUS_PROCHOT, THERMAL_THROTTLING_EVENT, PACKAGE_LEVEL) != 0) mce_log_therm_throt_event(PACKAGE_THROTTLED | msr_val); - if (cpu_has(c, X86_FEATURE_PLN)) + if (this_cpu_has(X86_FEATURE_PLN)) if (therm_throt_process(msr_val & PACKAGE_THERM_STATUS_POWER_LIMIT, POWER_LIMIT_EVENT, @@ -393,7 +390,6 @@ static void unexpected_thermal_interrupt(void) { printk(KERN_ERR "CPU%d: Unexpected LVT thermal interrupt!\n", smp_processor_id()); - add_taint(TAINT_MACHINE_CHECK); } static void (*smp_thermal_vector)(void) = unexpected_thermal_interrupt; @@ -446,18 +442,20 @@ void intel_init_thermal(struct cpuinfo_x86 *c) */ rdmsr(MSR_IA32_MISC_ENABLE, l, h); + h = lvtthmr_init; /* * The initial value of thermal LVT entries on all APs always reads * 0x10000 because APs are woken up by BSP issuing INIT-SIPI-SIPI * sequence to them and LVT registers are reset to 0s except for * the mask bits which are set to 1s when APs receive INIT IPI. - * Always restore the value that BIOS has programmed on AP based on - * BSP's info we saved since BIOS is always setting the same value - * for all threads/cores + * If BIOS takes over the thermal interrupt and sets its interrupt + * delivery mode to SMI (not fixed), it restores the value that the + * BIOS has programmed on AP based on BSP's info we saved since BIOS + * is always setting the same value for all threads/cores. */ - apic_write(APIC_LVTTHMR, lvtthmr_init); + if ((h & APIC_DM_FIXED_MASK) != APIC_DM_FIXED) + apic_write(APIC_LVTTHMR, lvtthmr_init); - h = lvtthmr_init; if ((l & MSR_IA32_MISC_ENABLE_TM1) && (h & APIC_DM_SMI)) { printk(KERN_DEBUG diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c index e638689279d..3a0338b4b17 100644 --- a/arch/x86/kernel/cpu/perf_event.c +++ b/arch/x86/kernel/cpu/perf_event.c @@ -31,6 +31,7 @@ #include <asm/nmi.h> #include <asm/compat.h> #include <asm/smp.h> +#include <asm/alternative.h> #if 0 #undef wrmsrl @@ -363,12 +364,18 @@ again: return new_raw_count; } -/* using X86_FEATURE_PERFCTR_CORE to later implement ALTERNATIVE() here */ static inline int x86_pmu_addr_offset(int index) { - if (boot_cpu_has(X86_FEATURE_PERFCTR_CORE)) - return index << 1; - return index; + int offset; + + /* offset = X86_FEATURE_PERFCTR_CORE ? index << 1 : index */ + alternative_io(ASM_NOP2, + "shll $1, %%eax", + X86_FEATURE_PERFCTR_CORE, + "=a" (offset), + "a" (index)); + + return offset; } static inline unsigned int x86_pmu_config_addr(int index) @@ -1766,17 +1773,6 @@ static struct pmu pmu = { * callchain support */ -static void -backtrace_warning_symbol(void *data, char *msg, unsigned long symbol) -{ - /* Ignore warnings */ -} - -static void backtrace_warning(void *data, char *msg) -{ - /* Ignore warnings */ -} - static int backtrace_stack(void *data, char *name) { return 0; @@ -1790,8 +1786,6 @@ static void backtrace_address(void *data, unsigned long addr, int reliable) } static const struct stacktrace_ops backtrace_ops = { - .warning = backtrace_warning, - .warning_symbol = backtrace_warning_symbol, .stack = backtrace_stack, .address = backtrace_address, .walk_stack = print_context_stack_bp, diff --git a/arch/x86/kernel/cpu/perf_event_amd.c b/arch/x86/kernel/cpu/perf_event_amd.c index cf4e369cea6..fe29c1d2219 100644 --- a/arch/x86/kernel/cpu/perf_event_amd.c +++ b/arch/x86/kernel/cpu/perf_event_amd.c @@ -96,12 +96,14 @@ static __initconst const u64 amd_hw_cache_event_ids */ static const u64 amd_perfmon_event_map[] = { - [PERF_COUNT_HW_CPU_CYCLES] = 0x0076, - [PERF_COUNT_HW_INSTRUCTIONS] = 0x00c0, - [PERF_COUNT_HW_CACHE_REFERENCES] = 0x0080, - [PERF_COUNT_HW_CACHE_MISSES] = 0x0081, - [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c2, - [PERF_COUNT_HW_BRANCH_MISSES] = 0x00c3, + [PERF_COUNT_HW_CPU_CYCLES] = 0x0076, + [PERF_COUNT_HW_INSTRUCTIONS] = 0x00c0, + [PERF_COUNT_HW_CACHE_REFERENCES] = 0x0080, + [PERF_COUNT_HW_CACHE_MISSES] = 0x0081, + [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c2, + [PERF_COUNT_HW_BRANCH_MISSES] = 0x00c3, + [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = 0x00d0, /* "Decoder empty" event */ + [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = 0x00d1, /* "Dispatch stalls" event */ }; static u64 amd_pmu_event_map(int hw_event) diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c index e61539b07d2..41178c826c4 100644 --- a/arch/x86/kernel/cpu/perf_event_intel.c +++ b/arch/x86/kernel/cpu/perf_event_intel.c @@ -36,7 +36,7 @@ static u64 intel_perfmon_event_map[PERF_COUNT_HW_MAX] __read_mostly = [PERF_COUNT_HW_BUS_CYCLES] = 0x013c, }; -static struct event_constraint intel_core_event_constraints[] = +static struct event_constraint intel_core_event_constraints[] __read_mostly = { INTEL_EVENT_CONSTRAINT(0x11, 0x2), /* FP_ASSIST */ INTEL_EVENT_CONSTRAINT(0x12, 0x2), /* MUL */ @@ -47,7 +47,7 @@ static struct event_constraint intel_core_event_constraints[] = EVENT_CONSTRAINT_END }; -static struct event_constraint intel_core2_event_constraints[] = +static struct event_constraint intel_core2_event_constraints[] __read_mostly = { FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */ FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */ @@ -70,7 +70,7 @@ static struct event_constraint intel_core2_event_constraints[] = EVENT_CONSTRAINT_END }; -static struct event_constraint intel_nehalem_event_constraints[] = +static struct event_constraint intel_nehalem_event_constraints[] __read_mostly = { FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */ FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */ @@ -86,19 +86,19 @@ static struct event_constraint intel_nehalem_event_constraints[] = EVENT_CONSTRAINT_END }; -static struct extra_reg intel_nehalem_extra_regs[] = +static struct extra_reg intel_nehalem_extra_regs[] __read_mostly = { INTEL_EVENT_EXTRA_REG(0xb7, MSR_OFFCORE_RSP_0, 0xffff), EVENT_EXTRA_END }; -static struct event_constraint intel_nehalem_percore_constraints[] = +static struct event_constraint intel_nehalem_percore_constraints[] __read_mostly = { INTEL_EVENT_CONSTRAINT(0xb7, 0), EVENT_CONSTRAINT_END }; -static struct event_constraint intel_westmere_event_constraints[] = +static struct event_constraint intel_westmere_event_constraints[] __read_mostly = { FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */ FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */ @@ -110,7 +110,7 @@ static struct event_constraint intel_westmere_event_constraints[] = EVENT_CONSTRAINT_END }; -static struct event_constraint intel_snb_event_constraints[] = +static struct event_constraint intel_snb_event_constraints[] __read_mostly = { FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */ FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */ @@ -123,21 +123,21 @@ static struct event_constraint intel_snb_event_constraints[] = EVENT_CONSTRAINT_END }; -static struct extra_reg intel_westmere_extra_regs[] = +static struct extra_reg intel_westmere_extra_regs[] __read_mostly = { INTEL_EVENT_EXTRA_REG(0xb7, MSR_OFFCORE_RSP_0, 0xffff), INTEL_EVENT_EXTRA_REG(0xbb, MSR_OFFCORE_RSP_1, 0xffff), EVENT_EXTRA_END }; -static struct event_constraint intel_westmere_percore_constraints[] = +static struct event_constraint intel_westmere_percore_constraints[] __read_mostly = { INTEL_EVENT_CONSTRAINT(0xb7, 0), INTEL_EVENT_CONSTRAINT(0xbb, 0), EVENT_CONSTRAINT_END }; -static struct event_constraint intel_gen_event_constraints[] = +static struct event_constraint intel_gen_event_constraints[] __read_mostly = { FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */ FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */ @@ -184,26 +184,23 @@ static __initconst const u64 snb_hw_cache_event_ids }, }, [ C(LL ) ] = { - /* - * TBD: Need Off-core Response Performance Monitoring support - */ [ C(OP_READ) ] = { - /* OFFCORE_RESPONSE_0.ANY_DATA.LOCAL_CACHE */ + /* OFFCORE_RESPONSE.ANY_DATA.LOCAL_CACHE */ [ C(RESULT_ACCESS) ] = 0x01b7, - /* OFFCORE_RESPONSE_1.ANY_DATA.ANY_LLC_MISS */ - [ C(RESULT_MISS) ] = 0x01bb, + /* OFFCORE_RESPONSE.ANY_DATA.ANY_LLC_MISS */ + [ C(RESULT_MISS) ] = 0x01b7, }, [ C(OP_WRITE) ] = { - /* OFFCORE_RESPONSE_0.ANY_RFO.LOCAL_CACHE */ + /* OFFCORE_RESPONSE.ANY_RFO.LOCAL_CACHE */ [ C(RESULT_ACCESS) ] = 0x01b7, - /* OFFCORE_RESPONSE_1.ANY_RFO.ANY_LLC_MISS */ - [ C(RESULT_MISS) ] = 0x01bb, + /* OFFCORE_RESPONSE.ANY_RFO.ANY_LLC_MISS */ + [ C(RESULT_MISS) ] = 0x01b7, }, [ C(OP_PREFETCH) ] = { - /* OFFCORE_RESPONSE_0.PREFETCH.LOCAL_CACHE */ + /* OFFCORE_RESPONSE.PREFETCH.LOCAL_CACHE */ [ C(RESULT_ACCESS) ] = 0x01b7, - /* OFFCORE_RESPONSE_1.PREFETCH.ANY_LLC_MISS */ - [ C(RESULT_MISS) ] = 0x01bb, + /* OFFCORE_RESPONSE.PREFETCH.ANY_LLC_MISS */ + [ C(RESULT_MISS) ] = 0x01b7, }, }, [ C(DTLB) ] = { @@ -285,26 +282,26 @@ static __initconst const u64 westmere_hw_cache_event_ids }, [ C(LL ) ] = { [ C(OP_READ) ] = { - /* OFFCORE_RESPONSE_0.ANY_DATA.LOCAL_CACHE */ + /* OFFCORE_RESPONSE.ANY_DATA.LOCAL_CACHE */ [ C(RESULT_ACCESS) ] = 0x01b7, - /* OFFCORE_RESPONSE_1.ANY_DATA.ANY_LLC_MISS */ - [ C(RESULT_MISS) ] = 0x01bb, + /* OFFCORE_RESPONSE.ANY_DATA.ANY_LLC_MISS */ + [ C(RESULT_MISS) ] = 0x01b7, }, /* * Use RFO, not WRITEBACK, because a write miss would typically occur * on RFO. */ [ C(OP_WRITE) ] = { - /* OFFCORE_RESPONSE_1.ANY_RFO.LOCAL_CACHE */ - [ C(RESULT_ACCESS) ] = 0x01bb, - /* OFFCORE_RESPONSE_0.ANY_RFO.ANY_LLC_MISS */ + /* OFFCORE_RESPONSE.ANY_RFO.LOCAL_CACHE */ + [ C(RESULT_ACCESS) ] = 0x01b7, + /* OFFCORE_RESPONSE.ANY_RFO.ANY_LLC_MISS */ [ C(RESULT_MISS) ] = 0x01b7, }, [ C(OP_PREFETCH) ] = { - /* OFFCORE_RESPONSE_0.PREFETCH.LOCAL_CACHE */ + /* OFFCORE_RESPONSE.PREFETCH.LOCAL_CACHE */ [ C(RESULT_ACCESS) ] = 0x01b7, - /* OFFCORE_RESPONSE_1.PREFETCH.ANY_LLC_MISS */ - [ C(RESULT_MISS) ] = 0x01bb, + /* OFFCORE_RESPONSE.PREFETCH.ANY_LLC_MISS */ + [ C(RESULT_MISS) ] = 0x01b7, }, }, [ C(DTLB) ] = { @@ -352,16 +349,36 @@ static __initconst const u64 westmere_hw_cache_event_ids }; /* - * OFFCORE_RESPONSE MSR bits (subset), See IA32 SDM Vol 3 30.6.1.3 + * Nehalem/Westmere MSR_OFFCORE_RESPONSE bits; + * See IA32 SDM Vol 3B 30.6.1.3 */ -#define DMND_DATA_RD (1 << 0) -#define DMND_RFO (1 << 1) -#define DMND_WB (1 << 3) -#define PF_DATA_RD (1 << 4) -#define PF_DATA_RFO (1 << 5) -#define RESP_UNCORE_HIT (1 << 8) -#define RESP_MISS (0xf600) /* non uncore hit */ +#define NHM_DMND_DATA_RD (1 << 0) +#define NHM_DMND_RFO (1 << 1) +#define NHM_DMND_IFETCH (1 << 2) +#define NHM_DMND_WB (1 << 3) +#define NHM_PF_DATA_RD (1 << 4) +#define NHM_PF_DATA_RFO (1 << 5) +#define NHM_PF_IFETCH (1 << 6) +#define NHM_OFFCORE_OTHER (1 << 7) +#define NHM_UNCORE_HIT (1 << 8) +#define NHM_OTHER_CORE_HIT_SNP (1 << 9) +#define NHM_OTHER_CORE_HITM (1 << 10) + /* reserved */ +#define NHM_REMOTE_CACHE_FWD (1 << 12) +#define NHM_REMOTE_DRAM (1 << 13) +#define NHM_LOCAL_DRAM (1 << 14) +#define NHM_NON_DRAM (1 << 15) + +#define NHM_ALL_DRAM (NHM_REMOTE_DRAM|NHM_LOCAL_DRAM) + +#define NHM_DMND_READ (NHM_DMND_DATA_RD) +#define NHM_DMND_WRITE (NHM_DMND_RFO|NHM_DMND_WB) +#define NHM_DMND_PREFETCH (NHM_PF_DATA_RD|NHM_PF_DATA_RFO) + +#define NHM_L3_HIT (NHM_UNCORE_HIT|NHM_OTHER_CORE_HIT_SNP|NHM_OTHER_CORE_HITM) +#define NHM_L3_MISS (NHM_NON_DRAM|NHM_ALL_DRAM|NHM_REMOTE_CACHE_FWD) +#define NHM_L3_ACCESS (NHM_L3_HIT|NHM_L3_MISS) static __initconst const u64 nehalem_hw_cache_extra_regs [PERF_COUNT_HW_CACHE_MAX] @@ -370,16 +387,16 @@ static __initconst const u64 nehalem_hw_cache_extra_regs { [ C(LL ) ] = { [ C(OP_READ) ] = { - [ C(RESULT_ACCESS) ] = DMND_DATA_RD|RESP_UNCORE_HIT, - [ C(RESULT_MISS) ] = DMND_DATA_RD|RESP_MISS, + [ C(RESULT_ACCESS) ] = NHM_DMND_READ|NHM_L3_ACCESS, + [ C(RESULT_MISS) ] = NHM_DMND_READ|NHM_L3_MISS, }, [ C(OP_WRITE) ] = { - [ C(RESULT_ACCESS) ] = DMND_RFO|DMND_WB|RESP_UNCORE_HIT, - [ C(RESULT_MISS) ] = DMND_RFO|DMND_WB|RESP_MISS, + [ C(RESULT_ACCESS) ] = NHM_DMND_WRITE|NHM_L3_ACCESS, + [ C(RESULT_MISS) ] = NHM_DMND_WRITE|NHM_L3_MISS, }, [ C(OP_PREFETCH) ] = { - [ C(RESULT_ACCESS) ] = PF_DATA_RD|PF_DATA_RFO|RESP_UNCORE_HIT, - [ C(RESULT_MISS) ] = PF_DATA_RD|PF_DATA_RFO|RESP_MISS, + [ C(RESULT_ACCESS) ] = NHM_DMND_PREFETCH|NHM_L3_ACCESS, + [ C(RESULT_MISS) ] = NHM_DMND_PREFETCH|NHM_L3_MISS, }, } }; @@ -1423,6 +1440,11 @@ static __init int intel_pmu_init(void) x86_pmu.enable_all = intel_pmu_nhm_enable_all; x86_pmu.extra_regs = intel_nehalem_extra_regs; + /* UOPS_ISSUED.STALLED_CYCLES */ + intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = 0x180010e; + /* UOPS_EXECUTED.CORE_ACTIVE_CYCLES,c=1,i=1 */ + intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = 0x1803fb1; + if (ebx & 0x40) { /* * Erratum AAJ80 detected, we work it around by using @@ -1463,6 +1485,12 @@ static __init int intel_pmu_init(void) x86_pmu.enable_all = intel_pmu_nhm_enable_all; x86_pmu.pebs_constraints = intel_westmere_pebs_event_constraints; x86_pmu.extra_regs = intel_westmere_extra_regs; + + /* UOPS_ISSUED.STALLED_CYCLES */ + intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = 0x180010e; + /* UOPS_EXECUTED.CORE_ACTIVE_CYCLES,c=1,i=1 */ + intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = 0x1803fb1; + pr_cont("Westmere events, "); break; @@ -1474,6 +1502,12 @@ static __init int intel_pmu_init(void) x86_pmu.event_constraints = intel_snb_event_constraints; x86_pmu.pebs_constraints = intel_snb_pebs_events; + + /* UOPS_ISSUED.ANY,c=1,i=1 to count stall cycles */ + intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = 0x180010e; + /* UOPS_DISPATCHED.THREAD,c=1,i=1 to count stall cycles*/ + intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = 0x18001b1; + pr_cont("SandyBridge events, "); break; diff --git a/arch/x86/kernel/cpu/perf_event_p4.c b/arch/x86/kernel/cpu/perf_event_p4.c index e93fcd55fae..ead584fb6a7 100644 --- a/arch/x86/kernel/cpu/perf_event_p4.c +++ b/arch/x86/kernel/cpu/perf_event_p4.c @@ -468,7 +468,7 @@ static struct p4_event_bind p4_event_bind_map[] = { .opcode = P4_OPCODE(P4_EVENT_MISPRED_BRANCH_RETIRED), .escr_msr = { MSR_P4_CRU_ESCR0, MSR_P4_CRU_ESCR1 }, .escr_emask = - P4_ESCR_EMASK_BIT(P4_EVENT_MISPRED_BRANCH_RETIRED, NBOGUS), + P4_ESCR_EMASK_BIT(P4_EVENT_MISPRED_BRANCH_RETIRED, NBOGUS), .cntr = { {12, 13, 16}, {14, 15, 17} }, }, [P4_EVENT_X87_ASSIST] = { @@ -912,8 +912,7 @@ static int p4_pmu_handle_irq(struct pt_regs *regs) int idx, handled = 0; u64 val; - data.addr = 0; - data.raw = NULL; + perf_sample_data_init(&data, 0); cpuc = &__get_cpu_var(cpu_hw_events); @@ -1197,7 +1196,7 @@ static __init int p4_pmu_init(void) { unsigned int low, high; - /* If we get stripped -- indexig fails */ + /* If we get stripped -- indexing fails */ BUILD_BUG_ON(ARCH_P4_MAX_CCCR > X86_PMC_MAX_GENERIC); rdmsr(MSR_IA32_MISC_ENABLE, low, high); diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c index e2a3f0606da..f478ff6877e 100644 --- a/arch/x86/kernel/dumpstack.c +++ b/arch/x86/kernel/dumpstack.c @@ -135,20 +135,6 @@ print_context_stack_bp(struct thread_info *tinfo, } EXPORT_SYMBOL_GPL(print_context_stack_bp); - -static void -print_trace_warning_symbol(void *data, char *msg, unsigned long symbol) -{ - printk(data); - print_symbol(msg, symbol); - printk("\n"); -} - -static void print_trace_warning(void *data, char *msg) -{ - printk("%s%s\n", (char *)data, msg); -} - static int print_trace_stack(void *data, char *name) { printk("%s <%s> ", (char *)data, name); @@ -166,8 +152,6 @@ static void print_trace_address(void *data, unsigned long addr, int reliable) } static const struct stacktrace_ops print_trace_ops = { - .warning = print_trace_warning, - .warning_symbol = print_trace_warning_symbol, .stack = print_trace_stack, .address = print_trace_address, .walk_stack = print_context_stack, diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c index a93742a5746..0ba15a6cc57 100644 --- a/arch/x86/kernel/ftrace.c +++ b/arch/x86/kernel/ftrace.c @@ -260,9 +260,9 @@ do_ftrace_mod_code(unsigned long ip, void *new_code) return mod_code_status; } -static unsigned char *ftrace_nop_replace(void) +static const unsigned char *ftrace_nop_replace(void) { - return ideal_nop5; + return ideal_nops[NOP_ATOMIC5]; } static int diff --git a/arch/x86/kernel/head32.c b/arch/x86/kernel/head32.c index d6d6bb36193..3bb08509a7a 100644 --- a/arch/x86/kernel/head32.c +++ b/arch/x86/kernel/head32.c @@ -23,7 +23,6 @@ static void __init i386_default_early_setup(void) { /* Initialize 32bit specific setup functions */ - x86_init.resources.probe_roms = probe_roms; x86_init.resources.reserve_resources = i386_reserve_resources; x86_init.mpparse.setup_ioapic_ids = setup_ioapic_ids_from_mpc; diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c index bfe8f729e08..6781765b3a0 100644 --- a/arch/x86/kernel/hpet.c +++ b/arch/x86/kernel/hpet.c @@ -217,7 +217,7 @@ static void hpet_reserve_platform_timers(unsigned int id) { } /* * Common hpet info */ -static unsigned long hpet_period; +static unsigned long hpet_freq; static void hpet_legacy_set_mode(enum clock_event_mode mode, struct clock_event_device *evt); @@ -232,7 +232,6 @@ static struct clock_event_device hpet_clockevent = { .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT, .set_mode = hpet_legacy_set_mode, .set_next_event = hpet_legacy_next_event, - .shift = 32, .irq = 0, .rating = 50, }; @@ -290,28 +289,12 @@ static void hpet_legacy_clockevent_register(void) hpet_enable_legacy_int(); /* - * The mult factor is defined as (include/linux/clockchips.h) - * mult/2^shift = cyc/ns (in contrast to ns/cyc in clocksource.h) - * hpet_period is in units of femtoseconds (per cycle), so - * mult/2^shift = cyc/ns = 10^6/hpet_period - * mult = (10^6 * 2^shift)/hpet_period - * mult = (FSEC_PER_NSEC << hpet_clockevent.shift)/hpet_period - */ - hpet_clockevent.mult = div_sc((unsigned long) FSEC_PER_NSEC, - hpet_period, hpet_clockevent.shift); - /* Calculate the min / max delta */ - hpet_clockevent.max_delta_ns = clockevent_delta2ns(0x7FFFFFFF, - &hpet_clockevent); - /* Setup minimum reprogramming delta. */ - hpet_clockevent.min_delta_ns = clockevent_delta2ns(HPET_MIN_PROG_DELTA, - &hpet_clockevent); - - /* * Start hpet with the boot cpu mask and make it * global after the IO_APIC has been initialized. */ hpet_clockevent.cpumask = cpumask_of(smp_processor_id()); - clockevents_register_device(&hpet_clockevent); + clockevents_config_and_register(&hpet_clockevent, hpet_freq, + HPET_MIN_PROG_DELTA, 0x7FFFFFFF); global_clock_event = &hpet_clockevent; printk(KERN_DEBUG "hpet clockevent registered\n"); } @@ -549,7 +532,6 @@ static int hpet_setup_irq(struct hpet_dev *dev) static void init_one_hpet_msi_clockevent(struct hpet_dev *hdev, int cpu) { struct clock_event_device *evt = &hdev->evt; - uint64_t hpet_freq; WARN_ON(cpu != smp_processor_id()); if (!(hdev->flags & HPET_DEV_VALID)) @@ -571,24 +553,10 @@ static void init_one_hpet_msi_clockevent(struct hpet_dev *hdev, int cpu) evt->set_mode = hpet_msi_set_mode; evt->set_next_event = hpet_msi_next_event; - evt->shift = 32; - - /* - * The period is a femto seconds value. We need to calculate the - * scaled math multiplication factor for nanosecond to hpet tick - * conversion. - */ - hpet_freq = FSEC_PER_SEC; - do_div(hpet_freq, hpet_period); - evt->mult = div_sc((unsigned long) hpet_freq, - NSEC_PER_SEC, evt->shift); - /* Calculate the max delta */ - evt->max_delta_ns = clockevent_delta2ns(0x7FFFFFFF, evt); - /* 5 usec minimum reprogramming delta. */ - evt->min_delta_ns = 5000; - evt->cpumask = cpumask_of(hdev->cpu); - clockevents_register_device(evt); + + clockevents_config_and_register(evt, hpet_freq, HPET_MIN_PROG_DELTA, + 0x7FFFFFFF); } #ifdef CONFIG_HPET @@ -792,7 +760,6 @@ static struct clocksource clocksource_hpet = { static int hpet_clocksource_register(void) { u64 start, now; - u64 hpet_freq; cycle_t t1; /* Start the counter */ @@ -819,24 +786,7 @@ static int hpet_clocksource_register(void) return -ENODEV; } - /* - * The definition of mult is (include/linux/clocksource.h) - * mult/2^shift = ns/cyc and hpet_period is in units of fsec/cyc - * so we first need to convert hpet_period to ns/cyc units: - * mult/2^shift = ns/cyc = hpet_period/10^6 - * mult = (hpet_period * 2^shift)/10^6 - * mult = (hpet_period << shift)/FSEC_PER_NSEC - */ - - /* Need to convert hpet_period (fsec/cyc) to cyc/sec: - * - * cyc/sec = FSEC_PER_SEC/hpet_period(fsec/cyc) - * cyc/sec = (FSEC_PER_NSEC * NSEC_PER_SEC)/hpet_period - */ - hpet_freq = FSEC_PER_SEC; - do_div(hpet_freq, hpet_period); clocksource_register_hz(&clocksource_hpet, (u32)hpet_freq); - return 0; } @@ -845,7 +795,9 @@ static int hpet_clocksource_register(void) */ int __init hpet_enable(void) { + unsigned long hpet_period; unsigned int id; + u64 freq; int i; if (!is_hpet_capable()) @@ -884,6 +836,14 @@ int __init hpet_enable(void) goto out_nohpet; /* + * The period is a femto seconds value. Convert it to a + * frequency. + */ + freq = FSEC_PER_SEC; + do_div(freq, hpet_period); + hpet_freq = freq; + + /* * Read the HPET ID register to retrieve the IRQ routing * information and the number of channels */ diff --git a/arch/x86/kernel/i8253.c b/arch/x86/kernel/i8253.c index 2dfd3159744..fb66dc9e36c 100644 --- a/arch/x86/kernel/i8253.c +++ b/arch/x86/kernel/i8253.c @@ -93,7 +93,6 @@ static struct clock_event_device pit_ce = { .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT, .set_mode = init_pit_timer, .set_next_event = pit_next_event, - .shift = 32, .irq = 0, }; @@ -108,90 +107,12 @@ void __init setup_pit_timer(void) * IO_APIC has been initialized. */ pit_ce.cpumask = cpumask_of(smp_processor_id()); - pit_ce.mult = div_sc(CLOCK_TICK_RATE, NSEC_PER_SEC, pit_ce.shift); - pit_ce.max_delta_ns = clockevent_delta2ns(0x7FFF, &pit_ce); - pit_ce.min_delta_ns = clockevent_delta2ns(0xF, &pit_ce); - clockevents_register_device(&pit_ce); + clockevents_config_and_register(&pit_ce, CLOCK_TICK_RATE, 0xF, 0x7FFF); global_clock_event = &pit_ce; } #ifndef CONFIG_X86_64 -/* - * Since the PIT overflows every tick, its not very useful - * to just read by itself. So use jiffies to emulate a free - * running counter: - */ -static cycle_t pit_read(struct clocksource *cs) -{ - static int old_count; - static u32 old_jifs; - unsigned long flags; - int count; - u32 jifs; - - raw_spin_lock_irqsave(&i8253_lock, flags); - /* - * Although our caller may have the read side of xtime_lock, - * this is now a seqlock, and we are cheating in this routine - * by having side effects on state that we cannot undo if - * there is a collision on the seqlock and our caller has to - * retry. (Namely, old_jifs and old_count.) So we must treat - * jiffies as volatile despite the lock. We read jiffies - * before latching the timer count to guarantee that although - * the jiffies value might be older than the count (that is, - * the counter may underflow between the last point where - * jiffies was incremented and the point where we latch the - * count), it cannot be newer. - */ - jifs = jiffies; - outb_pit(0x00, PIT_MODE); /* latch the count ASAP */ - count = inb_pit(PIT_CH0); /* read the latched count */ - count |= inb_pit(PIT_CH0) << 8; - - /* VIA686a test code... reset the latch if count > max + 1 */ - if (count > LATCH) { - outb_pit(0x34, PIT_MODE); - outb_pit(LATCH & 0xff, PIT_CH0); - outb_pit(LATCH >> 8, PIT_CH0); - count = LATCH - 1; - } - - /* - * It's possible for count to appear to go the wrong way for a - * couple of reasons: - * - * 1. The timer counter underflows, but we haven't handled the - * resulting interrupt and incremented jiffies yet. - * 2. Hardware problem with the timer, not giving us continuous time, - * the counter does small "jumps" upwards on some Pentium systems, - * (see c't 95/10 page 335 for Neptun bug.) - * - * Previous attempts to handle these cases intelligently were - * buggy, so we just do the simple thing now. - */ - if (count > old_count && jifs == old_jifs) - count = old_count; - - old_count = count; - old_jifs = jifs; - - raw_spin_unlock_irqrestore(&i8253_lock, flags); - - count = (LATCH - 1) - count; - - return (cycle_t)(jifs * LATCH) + count; -} - -static struct clocksource pit_cs = { - .name = "pit", - .rating = 110, - .read = pit_read, - .mask = CLOCKSOURCE_MASK(32), - .mult = 0, - .shift = 20, -}; - static int __init init_pit_clocksource(void) { /* @@ -205,10 +126,7 @@ static int __init init_pit_clocksource(void) pit_ce.mode != CLOCK_EVT_MODE_PERIODIC) return 0; - pit_cs.mult = clocksource_hz2mult(CLOCK_TICK_RATE, pit_cs.shift); - - return clocksource_register(&pit_cs); + return clocksource_i8253_init(); } arch_initcall(init_pit_clocksource); - #endif /* !CONFIG_X86_64 */ diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c index 1cb0b9fc78d..6c0802eb2f7 100644 --- a/arch/x86/kernel/irq.c +++ b/arch/x86/kernel/irq.c @@ -249,7 +249,7 @@ void fixup_irqs(void) data = irq_desc_get_irq_data(desc); affinity = data->affinity; - if (!irq_has_action(irq) || + if (!irq_has_action(irq) || irqd_is_per_cpu(data) || cpumask_subset(affinity, cpu_online_mask)) { raw_spin_unlock(&desc->lock); continue; @@ -276,7 +276,8 @@ void fixup_irqs(void) else if (!(warned++)) set_affinity = 0; - if (!irqd_can_move_in_process_context(data) && chip->irq_unmask) + if (!irqd_can_move_in_process_context(data) && + !irqd_irq_disabled(data) && chip->irq_unmask) chip->irq_unmask(data); raw_spin_unlock(&desc->lock); diff --git a/arch/x86/kernel/jump_label.c b/arch/x86/kernel/jump_label.c index 961b6b30ba9..3fee346ef54 100644 --- a/arch/x86/kernel/jump_label.c +++ b/arch/x86/kernel/jump_label.c @@ -34,7 +34,7 @@ void arch_jump_label_transform(struct jump_entry *entry, code.offset = entry->target - (entry->code + JUMP_LABEL_NOP_SIZE); } else - memcpy(&code, ideal_nop5, JUMP_LABEL_NOP_SIZE); + memcpy(&code, ideal_nops[NOP_ATOMIC5], JUMP_LABEL_NOP_SIZE); get_online_cpus(); mutex_lock(&text_mutex); text_poke_smp((void *)entry->code, &code, JUMP_LABEL_NOP_SIZE); @@ -44,7 +44,8 @@ void arch_jump_label_transform(struct jump_entry *entry, void arch_jump_label_text_poke_early(jump_label_t addr) { - text_poke_early((void *)addr, ideal_nop5, JUMP_LABEL_NOP_SIZE); + text_poke_early((void *)addr, ideal_nops[NOP_ATOMIC5], + JUMP_LABEL_NOP_SIZE); } #endif diff --git a/arch/x86/kernel/kprobes.c b/arch/x86/kernel/kprobes.c index c969fd9d156..f1a6244d7d9 100644 --- a/arch/x86/kernel/kprobes.c +++ b/arch/x86/kernel/kprobes.c @@ -1183,12 +1183,13 @@ static void __kprobes optimized_callback(struct optimized_kprobe *op, struct pt_regs *regs) { struct kprobe_ctlblk *kcb = get_kprobe_ctlblk(); + unsigned long flags; /* This is possible if op is under delayed unoptimizing */ if (kprobe_disabled(&op->kp)) return; - preempt_disable(); + local_irq_save(flags); if (kprobe_running()) { kprobes_inc_nmissed_count(&op->kp); } else { @@ -1207,7 +1208,7 @@ static void __kprobes optimized_callback(struct optimized_kprobe *op, opt_pre_handler(&op->kp, regs); __this_cpu_write(current_kprobe, NULL); } - preempt_enable_no_resched(); + local_irq_restore(flags); } static int __kprobes copy_optimized_instructions(u8 *dest, u8 *src) diff --git a/arch/x86/kernel/kvmclock.c b/arch/x86/kernel/kvmclock.c index f98d3eafe07..6389a6bca11 100644 --- a/arch/x86/kernel/kvmclock.c +++ b/arch/x86/kernel/kvmclock.c @@ -26,8 +26,6 @@ #include <asm/x86_init.h> #include <asm/reboot.h> -#define KVM_SCALE 22 - static int kvmclock = 1; static int msr_kvm_system_time = MSR_KVM_SYSTEM_TIME; static int msr_kvm_wall_clock = MSR_KVM_WALL_CLOCK; @@ -120,8 +118,6 @@ static struct clocksource kvm_clock = { .read = kvm_clock_get_cycles, .rating = 400, .mask = CLOCKSOURCE_MASK(64), - .mult = 1 << KVM_SCALE, - .shift = KVM_SCALE, .flags = CLOCK_SOURCE_IS_CONTINUOUS, }; @@ -203,7 +199,7 @@ void __init kvmclock_init(void) machine_ops.crash_shutdown = kvm_crash_shutdown; #endif kvm_get_preset_lpj(); - clocksource_register(&kvm_clock); + clocksource_register_hz(&kvm_clock, NSEC_PER_SEC); pv_info.paravirt_enabled = 1; pv_info.name = "KVM"; diff --git a/arch/x86/kernel/module.c b/arch/x86/kernel/module.c index ab23f1ad4bf..52f256f2cc8 100644 --- a/arch/x86/kernel/module.c +++ b/arch/x86/kernel/module.c @@ -24,6 +24,7 @@ #include <linux/bug.h> #include <linux/mm.h> #include <linux/gfp.h> +#include <linux/jump_label.h> #include <asm/system.h> #include <asm/page.h> diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c index 5a532ce646b..6f9bfffb272 100644 --- a/arch/x86/kernel/mpparse.c +++ b/arch/x86/kernel/mpparse.c @@ -715,17 +715,15 @@ static void __init check_irq_src(struct mpc_intsrc *m, int *nr_m_spare) } } -static int +static int __init check_slot(unsigned long mpc_new_phys, unsigned long mpc_new_length, int count) { - int ret = 0; - if (!mpc_new_phys || count <= mpc_new_length) { WARN(1, "update_mptable: No spare slots (length: %x)\n", count); return -1; } - return ret; + return 0; } #else /* CONFIG_X86_IO_APIC */ static diff --git a/arch/x86/kernel/pci-iommu_table.c b/arch/x86/kernel/pci-iommu_table.c index 55d745ec118..35ccf75696e 100644 --- a/arch/x86/kernel/pci-iommu_table.c +++ b/arch/x86/kernel/pci-iommu_table.c @@ -50,20 +50,14 @@ void __init check_iommu_entries(struct iommu_table_entry *start, struct iommu_table_entry *finish) { struct iommu_table_entry *p, *q, *x; - char sym_p[KSYM_SYMBOL_LEN]; - char sym_q[KSYM_SYMBOL_LEN]; /* Simple cyclic dependency checker. */ for (p = start; p < finish; p++) { q = find_dependents_of(start, finish, p); x = find_dependents_of(start, finish, q); if (p == x) { - sprint_symbol(sym_p, (unsigned long)p->detect); - sprint_symbol(sym_q, (unsigned long)q->detect); - - printk(KERN_ERR "CYCLIC DEPENDENCY FOUND! %s depends" \ - " on %s and vice-versa. BREAKING IT.\n", - sym_p, sym_q); + printk(KERN_ERR "CYCLIC DEPENDENCY FOUND! %pS depends on %pS and vice-versa. BREAKING IT.\n", + p->detect, q->detect); /* Heavy handed way..*/ x->depend = 0; } @@ -72,12 +66,8 @@ void __init check_iommu_entries(struct iommu_table_entry *start, for (p = start; p < finish; p++) { q = find_dependents_of(p, finish, p); if (q && q > p) { - sprint_symbol(sym_p, (unsigned long)p->detect); - sprint_symbol(sym_q, (unsigned long)q->detect); - - printk(KERN_ERR "EXECUTION ORDER INVALID! %s "\ - "should be called before %s!\n", - sym_p, sym_q); + printk(KERN_ERR "EXECUTION ORDER INVALID! %pS should be called before %pS!\n", + p->detect, q->detect); } } } diff --git a/arch/x86/kernel/probe_roms_32.c b/arch/x86/kernel/probe_roms.c index 071e7fea42e..ba0a4cce53b 100644 --- a/arch/x86/kernel/probe_roms_32.c +++ b/arch/x86/kernel/probe_roms.c @@ -73,6 +73,107 @@ static struct resource video_rom_resource = { .flags = IORESOURCE_BUSY | IORESOURCE_READONLY | IORESOURCE_MEM }; +/* does this oprom support the given pci device, or any of the devices + * that the driver supports? + */ +static bool match_id(struct pci_dev *pdev, unsigned short vendor, unsigned short device) +{ + struct pci_driver *drv = pdev->driver; + const struct pci_device_id *id; + + if (pdev->vendor == vendor && pdev->device == device) + return true; + + for (id = drv ? drv->id_table : NULL; id && id->vendor; id++) + if (id->vendor == vendor && id->device == device) + break; + + return id && id->vendor; +} + +static bool probe_list(struct pci_dev *pdev, unsigned short vendor, + const unsigned char *rom_list) +{ + unsigned short device; + + do { + if (probe_kernel_address(rom_list, device) != 0) + device = 0; + + if (device && match_id(pdev, vendor, device)) + break; + + rom_list += 2; + } while (device); + + return !!device; +} + +static struct resource *find_oprom(struct pci_dev *pdev) +{ + struct resource *oprom = NULL; + int i; + + for (i = 0; i < ARRAY_SIZE(adapter_rom_resources); i++) { + struct resource *res = &adapter_rom_resources[i]; + unsigned short offset, vendor, device, list, rev; + const unsigned char *rom; + + if (res->end == 0) + break; + + rom = isa_bus_to_virt(res->start); + if (probe_kernel_address(rom + 0x18, offset) != 0) + continue; + + if (probe_kernel_address(rom + offset + 0x4, vendor) != 0) + continue; + + if (probe_kernel_address(rom + offset + 0x6, device) != 0) + continue; + + if (match_id(pdev, vendor, device)) { + oprom = res; + break; + } + + if (probe_kernel_address(rom + offset + 0x8, list) == 0 && + probe_kernel_address(rom + offset + 0xc, rev) == 0 && + rev >= 3 && list && + probe_list(pdev, vendor, rom + offset + list)) { + oprom = res; + break; + } + } + + return oprom; +} + +void *pci_map_biosrom(struct pci_dev *pdev) +{ + struct resource *oprom = find_oprom(pdev); + + if (!oprom) + return NULL; + + return ioremap(oprom->start, resource_size(oprom)); +} +EXPORT_SYMBOL(pci_map_biosrom); + +void pci_unmap_biosrom(void __iomem *image) +{ + iounmap(image); +} +EXPORT_SYMBOL(pci_unmap_biosrom); + +size_t pci_biosrom_size(struct pci_dev *pdev) +{ + struct resource *oprom = find_oprom(pdev); + + return oprom ? resource_size(oprom) : 0; +} +EXPORT_SYMBOL(pci_biosrom_size); + #define ROMSIGNATURE 0xaa55 static int __init romsignature(const unsigned char *rom) diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index d46cbe46b7a..88a90a977f8 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -449,7 +449,7 @@ EXPORT_SYMBOL_GPL(cpu_idle_wait); void mwait_idle_with_hints(unsigned long ax, unsigned long cx) { if (!need_resched()) { - if (cpu_has(__this_cpu_ptr(&cpu_info), X86_FEATURE_CLFLUSH_MONITOR)) + if (this_cpu_has(X86_FEATURE_CLFLUSH_MONITOR)) clflush((void *)¤t_thread_info()->flags); __monitor((void *)¤t_thread_info()->flags, 0, 0); @@ -465,7 +465,7 @@ static void mwait_idle(void) if (!need_resched()) { trace_power_start(POWER_CSTATE, 1, smp_processor_id()); trace_cpu_idle(1, smp_processor_id()); - if (cpu_has(__this_cpu_ptr(&cpu_info), X86_FEATURE_CLFLUSH_MONITOR)) + if (this_cpu_has(X86_FEATURE_CLFLUSH_MONITOR)) clflush((void *)¤t_thread_info()->flags); __monitor((void *)¤t_thread_info()->flags, 0, 0); diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c index 45892dc4b72..f65e5b521db 100644 --- a/arch/x86/kernel/ptrace.c +++ b/arch/x86/kernel/ptrace.c @@ -608,6 +608,9 @@ static int ptrace_write_dr7(struct task_struct *tsk, unsigned long data) unsigned len, type; struct perf_event *bp; + if (ptrace_get_breakpoints(tsk) < 0) + return -ESRCH; + data &= ~DR_CONTROL_RESERVED; old_dr7 = ptrace_get_dr7(thread->ptrace_bps); restore: @@ -655,6 +658,9 @@ restore: } goto restore; } + + ptrace_put_breakpoints(tsk); + return ((orig_ret < 0) ? orig_ret : rc); } @@ -668,10 +674,17 @@ static unsigned long ptrace_get_debugreg(struct task_struct *tsk, int n) if (n < HBP_NUM) { struct perf_event *bp; + + if (ptrace_get_breakpoints(tsk) < 0) + return -ESRCH; + bp = thread->ptrace_bps[n]; if (!bp) - return 0; - val = bp->hw.info.address; + val = 0; + else + val = bp->hw.info.address; + + ptrace_put_breakpoints(tsk); } else if (n == 6) { val = thread->debugreg6; } else if (n == 7) { @@ -686,6 +699,10 @@ static int ptrace_set_breakpoint_addr(struct task_struct *tsk, int nr, struct perf_event *bp; struct thread_struct *t = &tsk->thread; struct perf_event_attr attr; + int err = 0; + + if (ptrace_get_breakpoints(tsk) < 0) + return -ESRCH; if (!t->ptrace_bps[nr]) { ptrace_breakpoint_init(&attr); @@ -709,24 +726,23 @@ static int ptrace_set_breakpoint_addr(struct task_struct *tsk, int nr, * writing for the user. And anyway this is the previous * behaviour. */ - if (IS_ERR(bp)) - return PTR_ERR(bp); + if (IS_ERR(bp)) { + err = PTR_ERR(bp); + goto put; + } t->ptrace_bps[nr] = bp; } else { - int err; - bp = t->ptrace_bps[nr]; attr = bp->attr; attr.bp_addr = addr; err = modify_user_hw_breakpoint(bp, &attr); - if (err) - return err; } - - return 0; +put: + ptrace_put_breakpoints(tsk); + return err; } /* diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c index 08c44b08bf5..0c016f72769 100644 --- a/arch/x86/kernel/reboot.c +++ b/arch/x86/kernel/reboot.c @@ -36,7 +36,7 @@ EXPORT_SYMBOL(pm_power_off); static const struct desc_ptr no_idt = {}; static int reboot_mode; -enum reboot_type reboot_type = BOOT_KBD; +enum reboot_type reboot_type = BOOT_ACPI; int reboot_force; #if defined(CONFIG_X86_32) && defined(CONFIG_SMP) @@ -478,9 +478,24 @@ void __attribute__((weak)) mach_reboot_fixups(void) { } +/* + * Windows compatible x86 hardware expects the following on reboot: + * + * 1) If the FADT has the ACPI reboot register flag set, try it + * 2) If still alive, write to the keyboard controller + * 3) If still alive, write to the ACPI reboot register again + * 4) If still alive, write to the keyboard controller again + * + * If the machine is still alive at this stage, it gives up. We default to + * following the same pattern, except that if we're still alive after (4) we'll + * try to force a triple fault and then cycle between hitting the keyboard + * controller and doing that + */ static void native_machine_emergency_restart(void) { int i; + int attempt = 0; + int orig_reboot_type = reboot_type; if (reboot_emergency) emergency_vmx_disable_all(); @@ -502,6 +517,13 @@ static void native_machine_emergency_restart(void) outb(0xfe, 0x64); /* pulse reset low */ udelay(50); } + if (attempt == 0 && orig_reboot_type == BOOT_ACPI) { + attempt = 1; + reboot_type = BOOT_ACPI; + } else { + reboot_type = BOOT_TRIPLE; + } + break; case BOOT_TRIPLE: load_idt(&no_idt); diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 4be9b398470..c3050af9306 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -691,8 +691,6 @@ early_param("reservelow", parse_reservelow); void __init setup_arch(char **cmdline_p) { - unsigned long flags; - #ifdef CONFIG_X86_32 memcpy(&boot_cpu_data, &new_cpu_data, sizeof(new_cpu_data)); visws_early_detect(); @@ -1041,9 +1039,7 @@ void __init setup_arch(char **cmdline_p) mcheck_init(); - local_irq_save(flags); - arch_init_ideal_nop5(); - local_irq_restore(flags); + arch_init_ideal_nops(); } #ifdef CONFIG_X86_32 diff --git a/arch/x86/kernel/smp.c b/arch/x86/kernel/smp.c index 513deac7228..013e7eba83b 100644 --- a/arch/x86/kernel/smp.c +++ b/arch/x86/kernel/smp.c @@ -194,14 +194,13 @@ static void native_stop_other_cpus(int wait) } /* - * Reschedule call back. Nothing to do, - * all the work is done automatically when - * we return from the interrupt. + * Reschedule call back. */ void smp_reschedule_interrupt(struct pt_regs *regs) { ack_APIC_irq(); inc_irq_stat(irq_resched_count); + scheduler_ipi(); /* * KVM uses this interrupt to force a cpu out of guest mode */ diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index c2871d3c71b..a3c430bdfb6 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -1332,9 +1332,9 @@ static inline void mwait_play_dead(void) void *mwait_ptr; struct cpuinfo_x86 *c = __this_cpu_ptr(&cpu_info); - if (!(cpu_has(c, X86_FEATURE_MWAIT) && mwait_usable(c))) + if (!this_cpu_has(X86_FEATURE_MWAIT) && mwait_usable(c)) return; - if (!cpu_has(__this_cpu_ptr(&cpu_info), X86_FEATURE_CLFLSH)) + if (!this_cpu_has(X86_FEATURE_CLFLSH)) return; if (__this_cpu_read(cpu_info.cpuid_level) < CPUID_MWAIT_LEAF) return; diff --git a/arch/x86/kernel/stacktrace.c b/arch/x86/kernel/stacktrace.c index 6515733a289..55d9bc03f69 100644 --- a/arch/x86/kernel/stacktrace.c +++ b/arch/x86/kernel/stacktrace.c @@ -9,15 +9,6 @@ #include <linux/uaccess.h> #include <asm/stacktrace.h> -static void save_stack_warning(void *data, char *msg) -{ -} - -static void -save_stack_warning_symbol(void *data, char *msg, unsigned long symbol) -{ -} - static int save_stack_stack(void *data, char *name) { return 0; @@ -53,16 +44,12 @@ save_stack_address_nosched(void *data, unsigned long addr, int reliable) } static const struct stacktrace_ops save_stack_ops = { - .warning = save_stack_warning, - .warning_symbol = save_stack_warning_symbol, .stack = save_stack_stack, .address = save_stack_address, .walk_stack = print_context_stack, }; static const struct stacktrace_ops save_stack_ops_nosched = { - .warning = save_stack_warning, - .warning_symbol = save_stack_warning_symbol, .stack = save_stack_stack, .address = save_stack_address_nosched, .walk_stack = print_context_stack, diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c index c11514e9128..6f164bd5e14 100644 --- a/arch/x86/kernel/x86_init.c +++ b/arch/x86/kernel/x86_init.c @@ -35,7 +35,7 @@ void iommu_shutdown_noop(void) { } struct x86_init_ops x86_init __initdata = { .resources = { - .probe_roms = x86_init_noop, + .probe_roms = probe_roms, .reserve_resources = reserve_standard_io_resources, .memory_setup = default_machine_specific_memory_setup, }, @@ -61,6 +61,10 @@ struct x86_init_ops x86_init __initdata = { .banner = default_banner, }, + .mapping = { + .pagetable_reserve = native_pagetable_reserve, + }, + .paging = { .pagetable_setup_start = native_pagetable_setup_start, .pagetable_setup_done = native_pagetable_setup_done, diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c index 1cd608973ce..e191c096ab9 100644 --- a/arch/x86/lguest/boot.c +++ b/arch/x86/lguest/boot.c @@ -7,7 +7,7 @@ * kernel and insert a module (lg.ko) which allows us to run other Linux * kernels the same way we'd run processes. We call the first kernel the Host, * and the others the Guests. The program which sets up and configures Guests - * (such as the example in Documentation/lguest/lguest.c) is called the + * (such as the example in Documentation/virtual/lguest/lguest.c) is called the * Launcher. * * Secondly, we only run specially modified Guests, not normal kernels: setting @@ -913,8 +913,6 @@ static struct clocksource lguest_clock = { .rating = 200, .read = lguest_clock_read, .mask = CLOCKSOURCE_MASK(64), - .mult = 1 << 22, - .shift = 22, .flags = CLOCK_SOURCE_IS_CONTINUOUS, }; @@ -997,7 +995,7 @@ static void lguest_time_init(void) /* Set up the timer interrupt (0) to go to our simple timer routine */ irq_set_handler(0, lguest_time_irq); - clocksource_register(&lguest_clock); + clocksource_register_hz(&lguest_clock, NSEC_PER_SEC); /* We can't set cpumask in the initializer: damn C limitations! Set it * here and register our timer device. */ diff --git a/arch/x86/lib/clear_page_64.S b/arch/x86/lib/clear_page_64.S index aa4326bfb24..f2145cfa12a 100644 --- a/arch/x86/lib/clear_page_64.S +++ b/arch/x86/lib/clear_page_64.S @@ -1,5 +1,6 @@ #include <linux/linkage.h> #include <asm/dwarf2.h> +#include <asm/alternative-asm.h> /* * Zero a page. @@ -14,6 +15,15 @@ ENTRY(clear_page_c) CFI_ENDPROC ENDPROC(clear_page_c) +ENTRY(clear_page_c_e) + CFI_STARTPROC + movl $4096,%ecx + xorl %eax,%eax + rep stosb + ret + CFI_ENDPROC +ENDPROC(clear_page_c_e) + ENTRY(clear_page) CFI_STARTPROC xorl %eax,%eax @@ -38,21 +48,26 @@ ENTRY(clear_page) .Lclear_page_end: ENDPROC(clear_page) - /* Some CPUs run faster using the string instructions. - It is also a lot simpler. Use this when possible */ + /* + * Some CPUs support enhanced REP MOVSB/STOSB instructions. + * It is recommended to use this when possible. + * If enhanced REP MOVSB/STOSB is not available, try to use fast string. + * Otherwise, use original function. + * + */ #include <asm/cpufeature.h> .section .altinstr_replacement,"ax" 1: .byte 0xeb /* jmp <disp8> */ .byte (clear_page_c - clear_page) - (2f - 1b) /* offset */ -2: +2: .byte 0xeb /* jmp <disp8> */ + .byte (clear_page_c_e - clear_page) - (3f - 2b) /* offset */ +3: .previous .section .altinstructions,"a" - .align 8 - .quad clear_page - .quad 1b - .word X86_FEATURE_REP_GOOD - .byte .Lclear_page_end - clear_page - .byte 2b - 1b + altinstruction_entry clear_page,1b,X86_FEATURE_REP_GOOD,\ + .Lclear_page_end-clear_page, 2b-1b + altinstruction_entry clear_page,2b,X86_FEATURE_ERMS, \ + .Lclear_page_end-clear_page,3b-2b .previous diff --git a/arch/x86/lib/copy_user_64.S b/arch/x86/lib/copy_user_64.S index 99e48261519..024840266ba 100644 --- a/arch/x86/lib/copy_user_64.S +++ b/arch/x86/lib/copy_user_64.S @@ -15,23 +15,30 @@ #include <asm/asm-offsets.h> #include <asm/thread_info.h> #include <asm/cpufeature.h> +#include <asm/alternative-asm.h> - .macro ALTERNATIVE_JUMP feature,orig,alt +/* + * By placing feature2 after feature1 in altinstructions section, we logically + * implement: + * If CPU has feature2, jmp to alt2 is used + * else if CPU has feature1, jmp to alt1 is used + * else jmp to orig is used. + */ + .macro ALTERNATIVE_JUMP feature1,feature2,orig,alt1,alt2 0: .byte 0xe9 /* 32bit jump */ .long \orig-1f /* by default jump to orig */ 1: .section .altinstr_replacement,"ax" 2: .byte 0xe9 /* near jump with 32bit immediate */ - .long \alt-1b /* offset */ /* or alternatively to alt */ + .long \alt1-1b /* offset */ /* or alternatively to alt1 */ +3: .byte 0xe9 /* near jump with 32bit immediate */ + .long \alt2-1b /* offset */ /* or alternatively to alt2 */ .previous + .section .altinstructions,"a" - .align 8 - .quad 0b - .quad 2b - .word \feature /* when feature is set */ - .byte 5 - .byte 5 + altinstruction_entry 0b,2b,\feature1,5,5 + altinstruction_entry 0b,3b,\feature2,5,5 .previous .endm @@ -72,8 +79,10 @@ ENTRY(_copy_to_user) addq %rdx,%rcx jc bad_to_user cmpq TI_addr_limit(%rax),%rcx - jae bad_to_user - ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,copy_user_generic_unrolled,copy_user_generic_string + ja bad_to_user + ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,X86_FEATURE_ERMS, \ + copy_user_generic_unrolled,copy_user_generic_string, \ + copy_user_enhanced_fast_string CFI_ENDPROC ENDPROC(_copy_to_user) @@ -85,8 +94,10 @@ ENTRY(_copy_from_user) addq %rdx,%rcx jc bad_from_user cmpq TI_addr_limit(%rax),%rcx - jae bad_from_user - ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,copy_user_generic_unrolled,copy_user_generic_string + ja bad_from_user + ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,X86_FEATURE_ERMS, \ + copy_user_generic_unrolled,copy_user_generic_string, \ + copy_user_enhanced_fast_string CFI_ENDPROC ENDPROC(_copy_from_user) @@ -255,3 +266,37 @@ ENTRY(copy_user_generic_string) .previous CFI_ENDPROC ENDPROC(copy_user_generic_string) + +/* + * Some CPUs are adding enhanced REP MOVSB/STOSB instructions. + * It's recommended to use enhanced REP MOVSB/STOSB if it's enabled. + * + * Input: + * rdi destination + * rsi source + * rdx count + * + * Output: + * eax uncopied bytes or 0 if successful. + */ +ENTRY(copy_user_enhanced_fast_string) + CFI_STARTPROC + andl %edx,%edx + jz 2f + movl %edx,%ecx +1: rep + movsb +2: xorl %eax,%eax + ret + + .section .fixup,"ax" +12: movl %ecx,%edx /* ecx is zerorest also */ + jmp copy_user_handle_tail + .previous + + .section __ex_table,"a" + .align 8 + .quad 1b,12b + .previous + CFI_ENDPROC +ENDPROC(copy_user_enhanced_fast_string) diff --git a/arch/x86/lib/memcpy_64.S b/arch/x86/lib/memcpy_64.S index 75ef61e35e3..efbf2a0ecde 100644 --- a/arch/x86/lib/memcpy_64.S +++ b/arch/x86/lib/memcpy_64.S @@ -4,6 +4,7 @@ #include <asm/cpufeature.h> #include <asm/dwarf2.h> +#include <asm/alternative-asm.h> /* * memcpy - Copy a memory block. @@ -37,6 +38,23 @@ .Lmemcpy_e: .previous +/* + * memcpy_c_e() - enhanced fast string memcpy. This is faster and simpler than + * memcpy_c. Use memcpy_c_e when possible. + * + * This gets patched over the unrolled variant (below) via the + * alternative instructions framework: + */ + .section .altinstr_replacement, "ax", @progbits +.Lmemcpy_c_e: + movq %rdi, %rax + + movl %edx, %ecx + rep movsb + ret +.Lmemcpy_e_e: + .previous + ENTRY(__memcpy) ENTRY(memcpy) CFI_STARTPROC @@ -49,7 +67,7 @@ ENTRY(memcpy) jb .Lhandle_tail /* - * We check whether memory false dependece could occur, + * We check whether memory false dependence could occur, * then jump to corresponding copy mode. */ cmp %dil, %sil @@ -171,21 +189,22 @@ ENDPROC(memcpy) ENDPROC(__memcpy) /* - * Some CPUs run faster using the string copy instructions. - * It is also a lot simpler. Use this when possible: - */ - - .section .altinstructions, "a" - .align 8 - .quad memcpy - .quad .Lmemcpy_c - .word X86_FEATURE_REP_GOOD - - /* + * Some CPUs are adding enhanced REP MOVSB/STOSB feature + * If the feature is supported, memcpy_c_e() is the first choice. + * If enhanced rep movsb copy is not available, use fast string copy + * memcpy_c() when possible. This is faster and code is simpler than + * original memcpy(). + * Otherwise, original memcpy() is used. + * In .altinstructions section, ERMS feature is placed after REG_GOOD + * feature to implement the right patch order. + * * Replace only beginning, memcpy is used to apply alternatives, * so it is silly to overwrite itself with nops - reboot is the * only outcome... */ - .byte .Lmemcpy_e - .Lmemcpy_c - .byte .Lmemcpy_e - .Lmemcpy_c + .section .altinstructions, "a" + altinstruction_entry memcpy,.Lmemcpy_c,X86_FEATURE_REP_GOOD,\ + .Lmemcpy_e-.Lmemcpy_c,.Lmemcpy_e-.Lmemcpy_c + altinstruction_entry memcpy,.Lmemcpy_c_e,X86_FEATURE_ERMS, \ + .Lmemcpy_e_e-.Lmemcpy_c_e,.Lmemcpy_e_e-.Lmemcpy_c_e .previous diff --git a/arch/x86/lib/memmove_64.S b/arch/x86/lib/memmove_64.S index 0ecb8433e5a..d0ec9c2936d 100644 --- a/arch/x86/lib/memmove_64.S +++ b/arch/x86/lib/memmove_64.S @@ -8,6 +8,7 @@ #define _STRING_C #include <linux/linkage.h> #include <asm/dwarf2.h> +#include <asm/cpufeature.h> #undef memmove @@ -24,6 +25,7 @@ */ ENTRY(memmove) CFI_STARTPROC + /* Handle more 32bytes in loop */ mov %rdi, %rax cmp $0x20, %rdx @@ -31,8 +33,13 @@ ENTRY(memmove) /* Decide forward/backward copy mode */ cmp %rdi, %rsi - jb 2f + jge .Lmemmove_begin_forward + mov %rsi, %r8 + add %rdx, %r8 + cmp %rdi, %r8 + jg 2f +.Lmemmove_begin_forward: /* * movsq instruction have many startup latency * so we handle small size by general register. @@ -78,6 +85,8 @@ ENTRY(memmove) rep movsq movq %r11, (%r10) jmp 13f +.Lmemmove_end_forward: + /* * Handle data backward by movsq. */ @@ -194,4 +203,22 @@ ENTRY(memmove) 13: retq CFI_ENDPROC + + .section .altinstr_replacement,"ax" +.Lmemmove_begin_forward_efs: + /* Forward moving data. */ + movq %rdx, %rcx + rep movsb + retq +.Lmemmove_end_forward_efs: + .previous + + .section .altinstructions,"a" + .align 8 + .quad .Lmemmove_begin_forward + .quad .Lmemmove_begin_forward_efs + .word X86_FEATURE_ERMS + .byte .Lmemmove_end_forward-.Lmemmove_begin_forward + .byte .Lmemmove_end_forward_efs-.Lmemmove_begin_forward_efs + .previous ENDPROC(memmove) diff --git a/arch/x86/lib/memset_64.S b/arch/x86/lib/memset_64.S index 09d34426965..79bd454b78a 100644 --- a/arch/x86/lib/memset_64.S +++ b/arch/x86/lib/memset_64.S @@ -2,9 +2,13 @@ #include <linux/linkage.h> #include <asm/dwarf2.h> +#include <asm/cpufeature.h> +#include <asm/alternative-asm.h> /* - * ISO C memset - set a memory block to a byte value. + * ISO C memset - set a memory block to a byte value. This function uses fast + * string to get better performance than the original function. The code is + * simpler and shorter than the orignal function as well. * * rdi destination * rsi value (char) @@ -31,6 +35,28 @@ .Lmemset_e: .previous +/* + * ISO C memset - set a memory block to a byte value. This function uses + * enhanced rep stosb to override the fast string function. + * The code is simpler and shorter than the fast string function as well. + * + * rdi destination + * rsi value (char) + * rdx count (bytes) + * + * rax original destination + */ + .section .altinstr_replacement, "ax", @progbits +.Lmemset_c_e: + movq %rdi,%r9 + movb %sil,%al + movl %edx,%ecx + rep stosb + movq %r9,%rax + ret +.Lmemset_e_e: + .previous + ENTRY(memset) ENTRY(__memset) CFI_STARTPROC @@ -112,16 +138,20 @@ ENTRY(__memset) ENDPROC(memset) ENDPROC(__memset) - /* Some CPUs run faster using the string instructions. - It is also a lot simpler. Use this when possible */ - -#include <asm/cpufeature.h> - + /* Some CPUs support enhanced REP MOVSB/STOSB feature. + * It is recommended to use this when possible. + * + * If enhanced REP MOVSB/STOSB feature is not available, use fast string + * instructions. + * + * Otherwise, use original memset function. + * + * In .altinstructions section, ERMS feature is placed after REG_GOOD + * feature to implement the right patch order. + */ .section .altinstructions,"a" - .align 8 - .quad memset - .quad .Lmemset_c - .word X86_FEATURE_REP_GOOD - .byte .Lfinal - memset - .byte .Lmemset_e - .Lmemset_c + altinstruction_entry memset,.Lmemset_c,X86_FEATURE_REP_GOOD,\ + .Lfinal-memset,.Lmemset_e-.Lmemset_c + altinstruction_entry memset,.Lmemset_c_e,X86_FEATURE_ERMS, \ + .Lfinal-memset,.Lmemset_e_e-.Lmemset_c_e .previous diff --git a/arch/x86/mm/Makefile b/arch/x86/mm/Makefile index 3e608edf995..3d11327c9ab 100644 --- a/arch/x86/mm/Makefile +++ b/arch/x86/mm/Makefile @@ -23,8 +23,8 @@ mmiotrace-y := kmmio.o pf_in.o mmio-mod.o obj-$(CONFIG_MMIOTRACE_TEST) += testmmiotrace.o obj-$(CONFIG_NUMA) += numa.o numa_$(BITS).o -obj-$(CONFIG_AMD_NUMA) += amdtopology_64.o -obj-$(CONFIG_ACPI_NUMA) += srat_$(BITS).o +obj-$(CONFIG_AMD_NUMA) += amdtopology.o +obj-$(CONFIG_ACPI_NUMA) += srat.o obj-$(CONFIG_NUMA_EMU) += numa_emulation.o obj-$(CONFIG_HAVE_MEMBLOCK) += memblock.o diff --git a/arch/x86/mm/amdtopology_64.c b/arch/x86/mm/amdtopology.c index 0919c26820d..5247d01329c 100644 --- a/arch/x86/mm/amdtopology_64.c +++ b/arch/x86/mm/amdtopology.c @@ -12,6 +12,7 @@ #include <linux/module.h> #include <linux/nodemask.h> #include <linux/memblock.h> +#include <linux/bootmem.h> #include <asm/io.h> #include <linux/pci_ids.h> @@ -69,10 +70,10 @@ static __init void early_get_boot_cpu_id(void) int __init amd_numa_init(void) { - unsigned long start = PFN_PHYS(0); - unsigned long end = PFN_PHYS(max_pfn); + u64 start = PFN_PHYS(0); + u64 end = PFN_PHYS(max_pfn); unsigned numnodes; - unsigned long prevbase; + u64 prevbase; int i, j, nb; u32 nodeid, reg; unsigned int bits, cores, apicid_base; @@ -95,7 +96,7 @@ int __init amd_numa_init(void) prevbase = 0; for (i = 0; i < 8; i++) { - unsigned long base, limit; + u64 base, limit; base = read_pci_config(0, nb, 1, 0x40 + i*8); limit = read_pci_config(0, nb, 1, 0x44 + i*8); @@ -107,18 +108,18 @@ int __init amd_numa_init(void) continue; } if (nodeid >= numnodes) { - pr_info("Ignoring excess node %d (%lx:%lx)\n", nodeid, + pr_info("Ignoring excess node %d (%Lx:%Lx)\n", nodeid, base, limit); continue; } if (!limit) { - pr_info("Skipping node entry %d (base %lx)\n", + pr_info("Skipping node entry %d (base %Lx)\n", i, base); continue; } if ((base >> 8) & 3 || (limit >> 8) & 3) { - pr_err("Node %d using interleaving mode %lx/%lx\n", + pr_err("Node %d using interleaving mode %Lx/%Lx\n", nodeid, (base >> 8) & 3, (limit >> 8) & 3); return -EINVAL; } @@ -150,19 +151,19 @@ int __init amd_numa_init(void) continue; } if (limit < base) { - pr_err("Node %d bogus settings %lx-%lx.\n", + pr_err("Node %d bogus settings %Lx-%Lx.\n", nodeid, base, limit); continue; } /* Could sort here, but pun for now. Should not happen anyroads. */ if (prevbase > base) { - pr_err("Node map not sorted %lx,%lx\n", + pr_err("Node map not sorted %Lx,%Lx\n", prevbase, base); return -EINVAL; } - pr_info("Node %d MemBase %016lx Limit %016lx\n", + pr_info("Node %d MemBase %016Lx Limit %016Lx\n", nodeid, base, limit); prevbase = base; diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c index 286d289b039..37b8b0fe832 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -81,6 +81,11 @@ static void __init find_early_table_space(unsigned long end, int use_pse, end, pgt_buf_start << PAGE_SHIFT, pgt_buf_top << PAGE_SHIFT); } +void __init native_pagetable_reserve(u64 start, u64 end) +{ + memblock_x86_reserve_range(start, end, "PGTABLE"); +} + struct map_range { unsigned long start; unsigned long end; @@ -272,9 +277,24 @@ unsigned long __init_refok init_memory_mapping(unsigned long start, __flush_tlb_all(); + /* + * Reserve the kernel pagetable pages we used (pgt_buf_start - + * pgt_buf_end) and free the other ones (pgt_buf_end - pgt_buf_top) + * so that they can be reused for other purposes. + * + * On native it just means calling memblock_x86_reserve_range, on Xen it + * also means marking RW the pagetable pages that we allocated before + * but that haven't been used. + * + * In fact on xen we mark RO the whole range pgt_buf_start - + * pgt_buf_top, because we have to make sure that when + * init_memory_mapping reaches the pagetable pages area, it maps + * RO all the pagetable pages, including the ones that are beyond + * pgt_buf_end at that time. + */ if (!after_bootmem && pgt_buf_end > pgt_buf_start) - memblock_x86_reserve_range(pgt_buf_start << PAGE_SHIFT, - pgt_buf_end << PAGE_SHIFT, "PGTABLE"); + x86_init.mapping.pagetable_reserve(PFN_PHYS(pgt_buf_start), + PFN_PHYS(pgt_buf_end)); if (!after_bootmem) early_memtest(start, end); diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c index 80088f99419..29f7c6d9817 100644 --- a/arch/x86/mm/init_32.c +++ b/arch/x86/mm/init_32.c @@ -678,8 +678,10 @@ static void __init zone_sizes_init(void) { unsigned long max_zone_pfns[MAX_NR_ZONES]; memset(max_zone_pfns, 0, sizeof(max_zone_pfns)); +#ifdef CONFIG_ZONE_DMA max_zone_pfns[ZONE_DMA] = virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT; +#endif max_zone_pfns[ZONE_NORMAL] = max_low_pfn; #ifdef CONFIG_HIGHMEM max_zone_pfns[ZONE_HIGHMEM] = highend_pfn; @@ -716,6 +718,7 @@ void __init paging_init(void) * NOTE: at this point the bootmem allocator is fully available. */ olpc_dt_build_devicetree(); + sparse_memory_present_with_active_regions(MAX_NUMNODES); sparse_init(); zone_sizes_init(); } diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index 79423358728..d865c4aeec5 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -616,7 +616,9 @@ void __init paging_init(void) unsigned long max_zone_pfns[MAX_NR_ZONES]; memset(max_zone_pfns, 0, sizeof(max_zone_pfns)); +#ifdef CONFIG_ZONE_DMA max_zone_pfns[ZONE_DMA] = MAX_DMA_PFN; +#endif max_zone_pfns[ZONE_DMA32] = MAX_DMA32_PFN; max_zone_pfns[ZONE_NORMAL] = max_pfn; @@ -679,14 +681,6 @@ int arch_add_memory(int nid, u64 start, u64 size) } EXPORT_SYMBOL_GPL(arch_add_memory); -#if !defined(CONFIG_ACPI_NUMA) && defined(CONFIG_NUMA) -int memory_add_physaddr_to_nid(u64 start) -{ - return 0; -} -EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid); -#endif - #endif /* CONFIG_MEMORY_HOTPLUG */ static struct kcore_list kcore_vsyscall; diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c index 0369843511d..be1ef574ce9 100644 --- a/arch/x86/mm/ioremap.c +++ b/arch/x86/mm/ioremap.c @@ -91,13 +91,6 @@ static void __iomem *__ioremap_caller(resource_size_t phys_addr, return (__force void __iomem *)phys_to_virt(phys_addr); /* - * Check if the request spans more than any BAR in the iomem resource - * tree. - */ - WARN_ONCE(iomem_map_sanity_check(phys_addr, size), - KERN_INFO "Info: mapping multiple BARs. Your kernel is fine."); - - /* * Don't allow anybody to remap normal RAM that we're using.. */ last_pfn = last_addr >> PAGE_SHIFT; @@ -170,6 +163,13 @@ static void __iomem *__ioremap_caller(resource_size_t phys_addr, ret_addr = (void __iomem *) (vaddr + offset); mmiotrace_ioremap(unaligned_phys_addr, unaligned_size, ret_addr); + /* + * Check if the request spans more than any BAR in the iomem resource + * tree. + */ + WARN_ONCE(iomem_map_sanity_check(unaligned_phys_addr, unaligned_size), + KERN_INFO "Info: mapping multiple BARs. Your kernel is fine."); + return ret_addr; err_free_area: free_vm_area(area); diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c index 745258dfc4d..f5510d889a2 100644 --- a/arch/x86/mm/numa.c +++ b/arch/x86/mm/numa.c @@ -1,11 +1,39 @@ /* Common code for 32 and 64-bit NUMA */ -#include <linux/topology.h> -#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/mm.h> +#include <linux/string.h> +#include <linux/init.h> #include <linux/bootmem.h> -#include <asm/numa.h> +#include <linux/memblock.h> +#include <linux/mmzone.h> +#include <linux/ctype.h> +#include <linux/module.h> +#include <linux/nodemask.h> +#include <linux/sched.h> +#include <linux/topology.h> + +#include <asm/e820.h> +#include <asm/proto.h> +#include <asm/dma.h> #include <asm/acpi.h> +#include <asm/amd_nb.h> + +#include "numa_internal.h" int __initdata numa_off; +nodemask_t numa_nodes_parsed __initdata; + +struct pglist_data *node_data[MAX_NUMNODES] __read_mostly; +EXPORT_SYMBOL(node_data); + +static struct numa_meminfo numa_meminfo +#ifndef CONFIG_MEMORY_HOTPLUG +__initdata +#endif +; + +static int numa_distance_cnt; +static u8 *numa_distance; static __init int numa_setup(char *opt) { @@ -32,6 +60,15 @@ s16 __apicid_to_node[MAX_LOCAL_APIC] __cpuinitdata = { [0 ... MAX_LOCAL_APIC-1] = NUMA_NO_NODE }; +int __cpuinit numa_cpu_node(int cpu) +{ + int apicid = early_per_cpu(x86_cpu_to_apicid, cpu); + + if (apicid != BAD_APICID) + return __apicid_to_node[apicid]; + return NUMA_NO_NODE; +} + cpumask_var_t node_to_cpumask_map[MAX_NUMNODES]; EXPORT_SYMBOL(node_to_cpumask_map); @@ -95,6 +132,407 @@ void __init setup_node_to_cpumask_map(void) pr_debug("Node to cpumask map for %d nodes\n", nr_node_ids); } +static int __init numa_add_memblk_to(int nid, u64 start, u64 end, + struct numa_meminfo *mi) +{ + /* ignore zero length blks */ + if (start == end) + return 0; + + /* whine about and ignore invalid blks */ + if (start > end || nid < 0 || nid >= MAX_NUMNODES) { + pr_warning("NUMA: Warning: invalid memblk node %d (%Lx-%Lx)\n", + nid, start, end); + return 0; + } + + if (mi->nr_blks >= NR_NODE_MEMBLKS) { + pr_err("NUMA: too many memblk ranges\n"); + return -EINVAL; + } + + mi->blk[mi->nr_blks].start = start; + mi->blk[mi->nr_blks].end = end; + mi->blk[mi->nr_blks].nid = nid; + mi->nr_blks++; + return 0; +} + +/** + * numa_remove_memblk_from - Remove one numa_memblk from a numa_meminfo + * @idx: Index of memblk to remove + * @mi: numa_meminfo to remove memblk from + * + * Remove @idx'th numa_memblk from @mi by shifting @mi->blk[] and + * decrementing @mi->nr_blks. + */ +void __init numa_remove_memblk_from(int idx, struct numa_meminfo *mi) +{ + mi->nr_blks--; + memmove(&mi->blk[idx], &mi->blk[idx + 1], + (mi->nr_blks - idx) * sizeof(mi->blk[0])); +} + +/** + * numa_add_memblk - Add one numa_memblk to numa_meminfo + * @nid: NUMA node ID of the new memblk + * @start: Start address of the new memblk + * @end: End address of the new memblk + * + * Add a new memblk to the default numa_meminfo. + * + * RETURNS: + * 0 on success, -errno on failure. + */ +int __init numa_add_memblk(int nid, u64 start, u64 end) +{ + return numa_add_memblk_to(nid, start, end, &numa_meminfo); +} + +/* Initialize NODE_DATA for a node on the local memory */ +static void __init setup_node_data(int nid, u64 start, u64 end) +{ + const u64 nd_low = PFN_PHYS(MAX_DMA_PFN); + const u64 nd_high = PFN_PHYS(max_pfn_mapped); + const size_t nd_size = roundup(sizeof(pg_data_t), PAGE_SIZE); + bool remapped = false; + u64 nd_pa; + void *nd; + int tnid; + + /* + * Don't confuse VM with a node that doesn't have the + * minimum amount of memory: + */ + if (end && (end - start) < NODE_MIN_SIZE) + return; + + /* initialize remap allocator before aligning to ZONE_ALIGN */ + init_alloc_remap(nid, start, end); + + start = roundup(start, ZONE_ALIGN); + + printk(KERN_INFO "Initmem setup node %d %016Lx-%016Lx\n", + nid, start, end); + + /* + * Allocate node data. Try remap allocator first, node-local + * memory and then any node. Never allocate in DMA zone. + */ + nd = alloc_remap(nid, nd_size); + if (nd) { + nd_pa = __pa(nd); + remapped = true; + } else { + nd_pa = memblock_x86_find_in_range_node(nid, nd_low, nd_high, + nd_size, SMP_CACHE_BYTES); + if (nd_pa == MEMBLOCK_ERROR) + nd_pa = memblock_find_in_range(nd_low, nd_high, + nd_size, SMP_CACHE_BYTES); + if (nd_pa == MEMBLOCK_ERROR) { + pr_err("Cannot find %zu bytes in node %d\n", + nd_size, nid); + return; + } + memblock_x86_reserve_range(nd_pa, nd_pa + nd_size, "NODE_DATA"); + nd = __va(nd_pa); + } + + /* report and initialize */ + printk(KERN_INFO " NODE_DATA [%016Lx - %016Lx]%s\n", + nd_pa, nd_pa + nd_size - 1, remapped ? " (remapped)" : ""); + tnid = early_pfn_to_nid(nd_pa >> PAGE_SHIFT); + if (!remapped && tnid != nid) + printk(KERN_INFO " NODE_DATA(%d) on node %d\n", nid, tnid); + + node_data[nid] = nd; + memset(NODE_DATA(nid), 0, sizeof(pg_data_t)); + NODE_DATA(nid)->node_id = nid; + NODE_DATA(nid)->node_start_pfn = start >> PAGE_SHIFT; + NODE_DATA(nid)->node_spanned_pages = (end - start) >> PAGE_SHIFT; + + node_set_online(nid); +} + +/** + * numa_cleanup_meminfo - Cleanup a numa_meminfo + * @mi: numa_meminfo to clean up + * + * Sanitize @mi by merging and removing unncessary memblks. Also check for + * conflicts and clear unused memblks. + * + * RETURNS: + * 0 on success, -errno on failure. + */ +int __init numa_cleanup_meminfo(struct numa_meminfo *mi) +{ + const u64 low = 0; + const u64 high = PFN_PHYS(max_pfn); + int i, j, k; + + /* first, trim all entries */ + for (i = 0; i < mi->nr_blks; i++) { + struct numa_memblk *bi = &mi->blk[i]; + + /* make sure all blocks are inside the limits */ + bi->start = max(bi->start, low); + bi->end = min(bi->end, high); + + /* and there's no empty block */ + if (bi->start >= bi->end) + numa_remove_memblk_from(i--, mi); + } + + /* merge neighboring / overlapping entries */ + for (i = 0; i < mi->nr_blks; i++) { + struct numa_memblk *bi = &mi->blk[i]; + + for (j = i + 1; j < mi->nr_blks; j++) { + struct numa_memblk *bj = &mi->blk[j]; + u64 start, end; + + /* + * See whether there are overlapping blocks. Whine + * about but allow overlaps of the same nid. They + * will be merged below. + */ + if (bi->end > bj->start && bi->start < bj->end) { + if (bi->nid != bj->nid) { + pr_err("NUMA: node %d (%Lx-%Lx) overlaps with node %d (%Lx-%Lx)\n", + bi->nid, bi->start, bi->end, + bj->nid, bj->start, bj->end); + return -EINVAL; + } + pr_warning("NUMA: Warning: node %d (%Lx-%Lx) overlaps with itself (%Lx-%Lx)\n", + bi->nid, bi->start, bi->end, + bj->start, bj->end); + } + + /* + * Join together blocks on the same node, holes + * between which don't overlap with memory on other + * nodes. + */ + if (bi->nid != bj->nid) + continue; + start = min(bi->start, bj->start); + end = max(bi->end, bj->end); + for (k = 0; k < mi->nr_blks; k++) { + struct numa_memblk *bk = &mi->blk[k]; + + if (bi->nid == bk->nid) + continue; + if (start < bk->end && end > bk->start) + break; + } + if (k < mi->nr_blks) + continue; + printk(KERN_INFO "NUMA: Node %d [%Lx,%Lx) + [%Lx,%Lx) -> [%Lx,%Lx)\n", + bi->nid, bi->start, bi->end, bj->start, bj->end, + start, end); + bi->start = start; + bi->end = end; + numa_remove_memblk_from(j--, mi); + } + } + + /* clear unused ones */ + for (i = mi->nr_blks; i < ARRAY_SIZE(mi->blk); i++) { + mi->blk[i].start = mi->blk[i].end = 0; + mi->blk[i].nid = NUMA_NO_NODE; + } + + return 0; +} + +/* + * Set nodes, which have memory in @mi, in *@nodemask. + */ +static void __init numa_nodemask_from_meminfo(nodemask_t *nodemask, + const struct numa_meminfo *mi) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(mi->blk); i++) + if (mi->blk[i].start != mi->blk[i].end && + mi->blk[i].nid != NUMA_NO_NODE) + node_set(mi->blk[i].nid, *nodemask); +} + +/** + * numa_reset_distance - Reset NUMA distance table + * + * The current table is freed. The next numa_set_distance() call will + * create a new one. + */ +void __init numa_reset_distance(void) +{ + size_t size = numa_distance_cnt * numa_distance_cnt * sizeof(numa_distance[0]); + + /* numa_distance could be 1LU marking allocation failure, test cnt */ + if (numa_distance_cnt) + memblock_x86_free_range(__pa(numa_distance), + __pa(numa_distance) + size); + numa_distance_cnt = 0; + numa_distance = NULL; /* enable table creation */ +} + +static int __init numa_alloc_distance(void) +{ + nodemask_t nodes_parsed; + size_t size; + int i, j, cnt = 0; + u64 phys; + + /* size the new table and allocate it */ + nodes_parsed = numa_nodes_parsed; + numa_nodemask_from_meminfo(&nodes_parsed, &numa_meminfo); + + for_each_node_mask(i, nodes_parsed) + cnt = i; + cnt++; + size = cnt * cnt * sizeof(numa_distance[0]); + + phys = memblock_find_in_range(0, PFN_PHYS(max_pfn_mapped), + size, PAGE_SIZE); + if (phys == MEMBLOCK_ERROR) { + pr_warning("NUMA: Warning: can't allocate distance table!\n"); + /* don't retry until explicitly reset */ + numa_distance = (void *)1LU; + return -ENOMEM; + } + memblock_x86_reserve_range(phys, phys + size, "NUMA DIST"); + + numa_distance = __va(phys); + numa_distance_cnt = cnt; + + /* fill with the default distances */ + for (i = 0; i < cnt; i++) + for (j = 0; j < cnt; j++) + numa_distance[i * cnt + j] = i == j ? + LOCAL_DISTANCE : REMOTE_DISTANCE; + printk(KERN_DEBUG "NUMA: Initialized distance table, cnt=%d\n", cnt); + + return 0; +} + +/** + * numa_set_distance - Set NUMA distance from one NUMA to another + * @from: the 'from' node to set distance + * @to: the 'to' node to set distance + * @distance: NUMA distance + * + * Set the distance from node @from to @to to @distance. If distance table + * doesn't exist, one which is large enough to accommodate all the currently + * known nodes will be created. + * + * If such table cannot be allocated, a warning is printed and further + * calls are ignored until the distance table is reset with + * numa_reset_distance(). + * + * If @from or @to is higher than the highest known node at the time of + * table creation or @distance doesn't make sense, the call is ignored. + * This is to allow simplification of specific NUMA config implementations. + */ +void __init numa_set_distance(int from, int to, int distance) +{ + if (!numa_distance && numa_alloc_distance() < 0) + return; + + if (from >= numa_distance_cnt || to >= numa_distance_cnt) { + printk_once(KERN_DEBUG "NUMA: Debug: distance out of bound, from=%d to=%d distance=%d\n", + from, to, distance); + return; + } + + if ((u8)distance != distance || + (from == to && distance != LOCAL_DISTANCE)) { + pr_warn_once("NUMA: Warning: invalid distance parameter, from=%d to=%d distance=%d\n", + from, to, distance); + return; + } + + numa_distance[from * numa_distance_cnt + to] = distance; +} + +int __node_distance(int from, int to) +{ + if (from >= numa_distance_cnt || to >= numa_distance_cnt) + return from == to ? LOCAL_DISTANCE : REMOTE_DISTANCE; + return numa_distance[from * numa_distance_cnt + to]; +} +EXPORT_SYMBOL(__node_distance); + +/* + * Sanity check to catch more bad NUMA configurations (they are amazingly + * common). Make sure the nodes cover all memory. + */ +static bool __init numa_meminfo_cover_memory(const struct numa_meminfo *mi) +{ + u64 numaram, e820ram; + int i; + + numaram = 0; + for (i = 0; i < mi->nr_blks; i++) { + u64 s = mi->blk[i].start >> PAGE_SHIFT; + u64 e = mi->blk[i].end >> PAGE_SHIFT; + numaram += e - s; + numaram -= __absent_pages_in_range(mi->blk[i].nid, s, e); + if ((s64)numaram < 0) + numaram = 0; + } + + e820ram = max_pfn - (memblock_x86_hole_size(0, + PFN_PHYS(max_pfn)) >> PAGE_SHIFT); + /* We seem to lose 3 pages somewhere. Allow 1M of slack. */ + if ((s64)(e820ram - numaram) >= (1 << (20 - PAGE_SHIFT))) { + printk(KERN_ERR "NUMA: nodes only cover %LuMB of your %LuMB e820 RAM. Not used.\n", + (numaram << PAGE_SHIFT) >> 20, + (e820ram << PAGE_SHIFT) >> 20); + return false; + } + return true; +} + +static int __init numa_register_memblks(struct numa_meminfo *mi) +{ + int i, nid; + + /* Account for nodes with cpus and no memory */ + node_possible_map = numa_nodes_parsed; + numa_nodemask_from_meminfo(&node_possible_map, mi); + if (WARN_ON(nodes_empty(node_possible_map))) + return -EINVAL; + + for (i = 0; i < mi->nr_blks; i++) + memblock_x86_register_active_regions(mi->blk[i].nid, + mi->blk[i].start >> PAGE_SHIFT, + mi->blk[i].end >> PAGE_SHIFT); + + /* for out of order entries */ + sort_node_map(); + if (!numa_meminfo_cover_memory(mi)) + return -EINVAL; + + /* Finally register nodes. */ + for_each_node_mask(nid, node_possible_map) { + u64 start = PFN_PHYS(max_pfn); + u64 end = 0; + + for (i = 0; i < mi->nr_blks; i++) { + if (nid != mi->blk[i].nid) + continue; + start = min(mi->blk[i].start, start); + end = max(mi->blk[i].end, end); + } + + if (start < end) + setup_node_data(nid, start, end); + } + + return 0; +} + /* * There are unfortunately some poorly designed mainboards around that * only connect memory to a single CPU. This breaks the 1:1 cpu->node @@ -102,7 +540,7 @@ void __init setup_node_to_cpumask_map(void) * as the number of CPUs is not known yet. We round robin the existing * nodes. */ -void __init numa_init_array(void) +static void __init numa_init_array(void) { int rr, i; @@ -117,6 +555,95 @@ void __init numa_init_array(void) } } +static int __init numa_init(int (*init_func)(void)) +{ + int i; + int ret; + + for (i = 0; i < MAX_LOCAL_APIC; i++) + set_apicid_to_node(i, NUMA_NO_NODE); + + nodes_clear(numa_nodes_parsed); + nodes_clear(node_possible_map); + nodes_clear(node_online_map); + memset(&numa_meminfo, 0, sizeof(numa_meminfo)); + remove_all_active_ranges(); + numa_reset_distance(); + + ret = init_func(); + if (ret < 0) + return ret; + ret = numa_cleanup_meminfo(&numa_meminfo); + if (ret < 0) + return ret; + + numa_emulation(&numa_meminfo, numa_distance_cnt); + + ret = numa_register_memblks(&numa_meminfo); + if (ret < 0) + return ret; + + for (i = 0; i < nr_cpu_ids; i++) { + int nid = early_cpu_to_node(i); + + if (nid == NUMA_NO_NODE) + continue; + if (!node_online(nid)) + numa_clear_node(i); + } + numa_init_array(); + return 0; +} + +/** + * dummy_numa_init - Fallback dummy NUMA init + * + * Used if there's no underlying NUMA architecture, NUMA initialization + * fails, or NUMA is disabled on the command line. + * + * Must online at least one node and add memory blocks that cover all + * allowed memory. This function must not fail. + */ +static int __init dummy_numa_init(void) +{ + printk(KERN_INFO "%s\n", + numa_off ? "NUMA turned off" : "No NUMA configuration found"); + printk(KERN_INFO "Faking a node at %016Lx-%016Lx\n", + 0LLU, PFN_PHYS(max_pfn)); + + node_set(0, numa_nodes_parsed); + numa_add_memblk(0, 0, PFN_PHYS(max_pfn)); + + return 0; +} + +/** + * x86_numa_init - Initialize NUMA + * + * Try each configured NUMA initialization method until one succeeds. The + * last fallback is dummy single node config encomapssing whole memory and + * never fails. + */ +void __init x86_numa_init(void) +{ + if (!numa_off) { +#ifdef CONFIG_X86_NUMAQ + if (!numa_init(numaq_numa_init)) + return; +#endif +#ifdef CONFIG_ACPI_NUMA + if (!numa_init(x86_acpi_numa_init)) + return; +#endif +#ifdef CONFIG_AMD_NUMA + if (!numa_init(amd_numa_init)) + return; +#endif + } + + numa_init(dummy_numa_init); +} + static __init int find_near_online_node(int node) { int n, val; @@ -282,3 +809,18 @@ const struct cpumask *cpumask_of_node(int node) EXPORT_SYMBOL(cpumask_of_node); #endif /* !CONFIG_DEBUG_PER_CPU_MAPS */ + +#ifdef CONFIG_MEMORY_HOTPLUG +int memory_add_physaddr_to_nid(u64 start) +{ + struct numa_meminfo *mi = &numa_meminfo; + int nid = mi->blk[0].nid; + int i; + + for (i = 0; i < mi->nr_blks; i++) + if (mi->blk[i].start <= start && mi->blk[i].end > start) + nid = mi->blk[i].nid; + return nid; +} +EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid); +#endif diff --git a/arch/x86/mm/numa_32.c b/arch/x86/mm/numa_32.c index bde3906420d..849a975d3fa 100644 --- a/arch/x86/mm/numa_32.c +++ b/arch/x86/mm/numa_32.c @@ -22,39 +22,11 @@ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ -#include <linux/mm.h> #include <linux/bootmem.h> #include <linux/memblock.h> -#include <linux/mmzone.h> -#include <linux/highmem.h> -#include <linux/initrd.h> -#include <linux/nodemask.h> #include <linux/module.h> -#include <linux/kexec.h> -#include <linux/pfn.h> -#include <linux/swap.h> -#include <linux/acpi.h> - -#include <asm/e820.h> -#include <asm/setup.h> -#include <asm/mmzone.h> -#include <asm/bios_ebda.h> -#include <asm/proto.h> - -struct pglist_data *node_data[MAX_NUMNODES] __read_mostly; -EXPORT_SYMBOL(node_data); - -/* - * numa interface - we expect the numa architecture specific code to have - * populated the following initialisation. - * - * 1) node_online_map - the map of all nodes configured (online) in the system - * 2) node_start_pfn - the starting page frame number for a node - * 3) node_end_pfn - the ending page fram number for a node - */ -unsigned long node_start_pfn[MAX_NUMNODES] __read_mostly; -unsigned long node_end_pfn[MAX_NUMNODES] __read_mostly; +#include "numa_internal.h" #ifdef CONFIG_DISCONTIGMEM /* @@ -99,108 +71,46 @@ unsigned long node_memmap_size_bytes(int nid, unsigned long start_pfn, } #endif -extern unsigned long find_max_low_pfn(void); extern unsigned long highend_pfn, highstart_pfn; #define LARGE_PAGE_BYTES (PTRS_PER_PTE * PAGE_SIZE) -unsigned long node_remap_size[MAX_NUMNODES]; static void *node_remap_start_vaddr[MAX_NUMNODES]; void set_pmd_pfn(unsigned long vaddr, unsigned long pfn, pgprot_t flags); -static unsigned long kva_start_pfn; -static unsigned long kva_pages; - -int __cpuinit numa_cpu_node(int cpu) -{ - return apic->x86_32_numa_cpu_node(cpu); -} - -/* - * FLAT - support for basic PC memory model with discontig enabled, essentially - * a single node with all available processors in it with a flat - * memory map. - */ -int __init get_memcfg_numa_flat(void) -{ - printk(KERN_DEBUG "NUMA - single node, flat memory mode\n"); - - node_start_pfn[0] = 0; - node_end_pfn[0] = max_pfn; - memblock_x86_register_active_regions(0, 0, max_pfn); - memory_present(0, 0, max_pfn); - node_remap_size[0] = node_memmap_size_bytes(0, 0, max_pfn); - - /* Indicate there is one node available. */ - nodes_clear(node_online_map); - node_set_online(0); - return 1; -} - -/* - * Find the highest page frame number we have available for the node - */ -static void __init propagate_e820_map_node(int nid) -{ - if (node_end_pfn[nid] > max_pfn) - node_end_pfn[nid] = max_pfn; - /* - * if a user has given mem=XXXX, then we need to make sure - * that the node _starts_ before that, too, not just ends - */ - if (node_start_pfn[nid] > max_pfn) - node_start_pfn[nid] = max_pfn; - BUG_ON(node_start_pfn[nid] > node_end_pfn[nid]); -} - -/* - * Allocate memory for the pg_data_t for this node via a crude pre-bootmem - * method. For node zero take this from the bottom of memory, for - * subsequent nodes place them at node_remap_start_vaddr which contains - * node local data in physically node local memory. See setup_memory() - * for details. - */ -static void __init allocate_pgdat(int nid) -{ - char buf[16]; - - if (node_has_online_mem(nid) && node_remap_start_vaddr[nid]) - NODE_DATA(nid) = (pg_data_t *)node_remap_start_vaddr[nid]; - else { - unsigned long pgdat_phys; - pgdat_phys = memblock_find_in_range(min_low_pfn<<PAGE_SHIFT, - max_pfn_mapped<<PAGE_SHIFT, - sizeof(pg_data_t), - PAGE_SIZE); - NODE_DATA(nid) = (pg_data_t *)(pfn_to_kaddr(pgdat_phys>>PAGE_SHIFT)); - memset(buf, 0, sizeof(buf)); - sprintf(buf, "NODE_DATA %d", nid); - memblock_x86_reserve_range(pgdat_phys, pgdat_phys + sizeof(pg_data_t), buf); - } - printk(KERN_DEBUG "allocate_pgdat: node %d NODE_DATA %08lx\n", - nid, (unsigned long)NODE_DATA(nid)); -} - /* - * In the DISCONTIGMEM and SPARSEMEM memory model, a portion of the kernel - * virtual address space (KVA) is reserved and portions of nodes are mapped - * using it. This is to allow node-local memory to be allocated for - * structures that would normally require ZONE_NORMAL. The memory is - * allocated with alloc_remap() and callers should be prepared to allocate - * from the bootmem allocator instead. + * Remap memory allocator */ static unsigned long node_remap_start_pfn[MAX_NUMNODES]; static void *node_remap_end_vaddr[MAX_NUMNODES]; static void *node_remap_alloc_vaddr[MAX_NUMNODES]; -static unsigned long node_remap_offset[MAX_NUMNODES]; +/** + * alloc_remap - Allocate remapped memory + * @nid: NUMA node to allocate memory from + * @size: The size of allocation + * + * Allocate @size bytes from the remap area of NUMA node @nid. The + * size of the remap area is predetermined by init_alloc_remap() and + * only the callers considered there should call this function. For + * more info, please read the comment on top of init_alloc_remap(). + * + * The caller must be ready to handle allocation failure from this + * function and fall back to regular memory allocator in such cases. + * + * CONTEXT: + * Single CPU early boot context. + * + * RETURNS: + * Pointer to the allocated memory on success, %NULL on failure. + */ void *alloc_remap(int nid, unsigned long size) { void *allocation = node_remap_alloc_vaddr[nid]; size = ALIGN(size, L1_CACHE_BYTES); - if (!allocation || (allocation + size) >= node_remap_end_vaddr[nid]) + if (!allocation || (allocation + size) > node_remap_end_vaddr[nid]) return NULL; node_remap_alloc_vaddr[nid] += size; @@ -209,26 +119,6 @@ void *alloc_remap(int nid, unsigned long size) return allocation; } -static void __init remap_numa_kva(void) -{ - void *vaddr; - unsigned long pfn; - int node; - - for_each_online_node(node) { - printk(KERN_DEBUG "remap_numa_kva: node %d\n", node); - for (pfn=0; pfn < node_remap_size[node]; pfn += PTRS_PER_PTE) { - vaddr = node_remap_start_vaddr[node]+(pfn<<PAGE_SHIFT); - printk(KERN_DEBUG "remap_numa_kva: %08lx to pfn %08lx\n", - (unsigned long)vaddr, - node_remap_start_pfn[node] + pfn); - set_pmd_pfn((ulong) vaddr, - node_remap_start_pfn[node] + pfn, - PAGE_KERNEL_LARGE); - } - } -} - #ifdef CONFIG_HIBERNATION /** * resume_map_numa_kva - add KVA mapping to the temporary page tables created @@ -240,15 +130,16 @@ void resume_map_numa_kva(pgd_t *pgd_base) int node; for_each_online_node(node) { - unsigned long start_va, start_pfn, size, pfn; + unsigned long start_va, start_pfn, nr_pages, pfn; start_va = (unsigned long)node_remap_start_vaddr[node]; start_pfn = node_remap_start_pfn[node]; - size = node_remap_size[node]; + nr_pages = (node_remap_end_vaddr[node] - + node_remap_start_vaddr[node]) >> PAGE_SHIFT; printk(KERN_DEBUG "%s: node %d\n", __func__, node); - for (pfn = 0; pfn < size; pfn += PTRS_PER_PTE) { + for (pfn = 0; pfn < nr_pages; pfn += PTRS_PER_PTE) { unsigned long vaddr = start_va + (pfn << PAGE_SHIFT); pgd_t *pgd = pgd_base + pgd_index(vaddr); pud_t *pud = pud_offset(pgd, vaddr); @@ -264,132 +155,89 @@ void resume_map_numa_kva(pgd_t *pgd_base) } #endif -static __init unsigned long calculate_numa_remap_pages(void) +/** + * init_alloc_remap - Initialize remap allocator for a NUMA node + * @nid: NUMA node to initizlie remap allocator for + * + * NUMA nodes may end up without any lowmem. As allocating pgdat and + * memmap on a different node with lowmem is inefficient, a special + * remap allocator is implemented which can be used by alloc_remap(). + * + * For each node, the amount of memory which will be necessary for + * pgdat and memmap is calculated and two memory areas of the size are + * allocated - one in the node and the other in lowmem; then, the area + * in the node is remapped to the lowmem area. + * + * As pgdat and memmap must be allocated in lowmem anyway, this + * doesn't waste lowmem address space; however, the actual lowmem + * which gets remapped over is wasted. The amount shouldn't be + * problematic on machines this feature will be used. + * + * Initialization failure isn't fatal. alloc_remap() is used + * opportunistically and the callers will fall back to other memory + * allocation mechanisms on failure. + */ +void __init init_alloc_remap(int nid, u64 start, u64 end) { - int nid; - unsigned long size, reserve_pages = 0; - - for_each_online_node(nid) { - u64 node_kva_target; - u64 node_kva_final; - - /* - * The acpi/srat node info can show hot-add memroy zones - * where memory could be added but not currently present. - */ - printk(KERN_DEBUG "node %d pfn: [%lx - %lx]\n", - nid, node_start_pfn[nid], node_end_pfn[nid]); - if (node_start_pfn[nid] > max_pfn) - continue; - if (!node_end_pfn[nid]) - continue; - if (node_end_pfn[nid] > max_pfn) - node_end_pfn[nid] = max_pfn; - - /* ensure the remap includes space for the pgdat. */ - size = node_remap_size[nid] + sizeof(pg_data_t); - - /* convert size to large (pmd size) pages, rounding up */ - size = (size + LARGE_PAGE_BYTES - 1) / LARGE_PAGE_BYTES; - /* now the roundup is correct, convert to PAGE_SIZE pages */ - size = size * PTRS_PER_PTE; - - node_kva_target = round_down(node_end_pfn[nid] - size, - PTRS_PER_PTE); - node_kva_target <<= PAGE_SHIFT; - do { - node_kva_final = memblock_find_in_range(node_kva_target, - ((u64)node_end_pfn[nid])<<PAGE_SHIFT, - ((u64)size)<<PAGE_SHIFT, - LARGE_PAGE_BYTES); - node_kva_target -= LARGE_PAGE_BYTES; - } while (node_kva_final == MEMBLOCK_ERROR && - (node_kva_target>>PAGE_SHIFT) > (node_start_pfn[nid])); - - if (node_kva_final == MEMBLOCK_ERROR) - panic("Can not get kva ram\n"); - - node_remap_size[nid] = size; - node_remap_offset[nid] = reserve_pages; - reserve_pages += size; - printk(KERN_DEBUG "Reserving %ld pages of KVA for lmem_map of" - " node %d at %llx\n", - size, nid, node_kva_final>>PAGE_SHIFT); - - /* - * prevent kva address below max_low_pfn want it on system - * with less memory later. - * layout will be: KVA address , KVA RAM - * - * we are supposed to only record the one less then max_low_pfn - * but we could have some hole in high memory, and it will only - * check page_is_ram(pfn) && !page_is_reserved_early(pfn) to decide - * to use it as free. - * So memblock_x86_reserve_range here, hope we don't run out of that array - */ - memblock_x86_reserve_range(node_kva_final, - node_kva_final+(((u64)size)<<PAGE_SHIFT), - "KVA RAM"); - - node_remap_start_pfn[nid] = node_kva_final>>PAGE_SHIFT; - } - printk(KERN_INFO "Reserving total of %lx pages for numa KVA remap\n", - reserve_pages); - return reserve_pages; -} + unsigned long start_pfn = start >> PAGE_SHIFT; + unsigned long end_pfn = end >> PAGE_SHIFT; + unsigned long size, pfn; + u64 node_pa, remap_pa; + void *remap_va; -static void init_remap_allocator(int nid) -{ - node_remap_start_vaddr[nid] = pfn_to_kaddr( - kva_start_pfn + node_remap_offset[nid]); - node_remap_end_vaddr[nid] = node_remap_start_vaddr[nid] + - (node_remap_size[nid] * PAGE_SIZE); - node_remap_alloc_vaddr[nid] = node_remap_start_vaddr[nid] + - ALIGN(sizeof(pg_data_t), PAGE_SIZE); - - printk(KERN_DEBUG "node %d will remap to vaddr %08lx - %08lx\n", nid, - (ulong) node_remap_start_vaddr[nid], - (ulong) node_remap_end_vaddr[nid]); + /* + * The acpi/srat node info can show hot-add memroy zones where + * memory could be added but not currently present. + */ + printk(KERN_DEBUG "node %d pfn: [%lx - %lx]\n", + nid, start_pfn, end_pfn); + + /* calculate the necessary space aligned to large page size */ + size = node_memmap_size_bytes(nid, start_pfn, end_pfn); + size += ALIGN(sizeof(pg_data_t), PAGE_SIZE); + size = ALIGN(size, LARGE_PAGE_BYTES); + + /* allocate node memory and the lowmem remap area */ + node_pa = memblock_find_in_range(start, end, size, LARGE_PAGE_BYTES); + if (node_pa == MEMBLOCK_ERROR) { + pr_warning("remap_alloc: failed to allocate %lu bytes for node %d\n", + size, nid); + return; + } + memblock_x86_reserve_range(node_pa, node_pa + size, "KVA RAM"); + + remap_pa = memblock_find_in_range(min_low_pfn << PAGE_SHIFT, + max_low_pfn << PAGE_SHIFT, + size, LARGE_PAGE_BYTES); + if (remap_pa == MEMBLOCK_ERROR) { + pr_warning("remap_alloc: failed to allocate %lu bytes remap area for node %d\n", + size, nid); + memblock_x86_free_range(node_pa, node_pa + size); + return; + } + memblock_x86_reserve_range(remap_pa, remap_pa + size, "KVA PG"); + remap_va = phys_to_virt(remap_pa); + + /* perform actual remap */ + for (pfn = 0; pfn < size >> PAGE_SHIFT; pfn += PTRS_PER_PTE) + set_pmd_pfn((unsigned long)remap_va + (pfn << PAGE_SHIFT), + (node_pa >> PAGE_SHIFT) + pfn, + PAGE_KERNEL_LARGE); + + /* initialize remap allocator parameters */ + node_remap_start_pfn[nid] = node_pa >> PAGE_SHIFT; + node_remap_start_vaddr[nid] = remap_va; + node_remap_end_vaddr[nid] = remap_va + size; + node_remap_alloc_vaddr[nid] = remap_va; + + printk(KERN_DEBUG "remap_alloc: node %d [%08llx-%08llx) -> [%p-%p)\n", + nid, node_pa, node_pa + size, remap_va, remap_va + size); } void __init initmem_init(void) { - int nid; - long kva_target_pfn; - - /* - * When mapping a NUMA machine we allocate the node_mem_map arrays - * from node local memory. They are then mapped directly into KVA - * between zone normal and vmalloc space. Calculate the size of - * this space and use it to adjust the boundary between ZONE_NORMAL - * and ZONE_HIGHMEM. - */ - - get_memcfg_numa(); - numa_init_array(); - - kva_pages = roundup(calculate_numa_remap_pages(), PTRS_PER_PTE); + x86_numa_init(); - kva_target_pfn = round_down(max_low_pfn - kva_pages, PTRS_PER_PTE); - do { - kva_start_pfn = memblock_find_in_range(kva_target_pfn<<PAGE_SHIFT, - max_low_pfn<<PAGE_SHIFT, - kva_pages<<PAGE_SHIFT, - PTRS_PER_PTE<<PAGE_SHIFT) >> PAGE_SHIFT; - kva_target_pfn -= PTRS_PER_PTE; - } while (kva_start_pfn == MEMBLOCK_ERROR && kva_target_pfn > min_low_pfn); - - if (kva_start_pfn == MEMBLOCK_ERROR) - panic("Can not get kva space\n"); - - printk(KERN_INFO "kva_start_pfn ~ %lx max_low_pfn ~ %lx\n", - kva_start_pfn, max_low_pfn); - printk(KERN_INFO "max_pfn = %lx\n", max_pfn); - - /* avoid clash with initrd */ - memblock_x86_reserve_range(kva_start_pfn<<PAGE_SHIFT, - (kva_start_pfn + kva_pages)<<PAGE_SHIFT, - "KVA PG"); #ifdef CONFIG_HIGHMEM highstart_pfn = highend_pfn = max_pfn; if (max_pfn > max_low_pfn) @@ -409,51 +257,9 @@ void __init initmem_init(void) printk(KERN_DEBUG "Low memory ends at vaddr %08lx\n", (ulong) pfn_to_kaddr(max_low_pfn)); - for_each_online_node(nid) { - init_remap_allocator(nid); - - allocate_pgdat(nid); - } - remap_numa_kva(); printk(KERN_DEBUG "High memory starts at vaddr %08lx\n", (ulong) pfn_to_kaddr(highstart_pfn)); - for_each_online_node(nid) - propagate_e820_map_node(nid); - - for_each_online_node(nid) { - memset(NODE_DATA(nid), 0, sizeof(struct pglist_data)); - NODE_DATA(nid)->node_id = nid; - } setup_bootmem_allocator(); } - -#ifdef CONFIG_MEMORY_HOTPLUG -static int paddr_to_nid(u64 addr) -{ - int nid; - unsigned long pfn = PFN_DOWN(addr); - - for_each_node(nid) - if (node_start_pfn[nid] <= pfn && - pfn < node_end_pfn[nid]) - return nid; - - return -1; -} - -/* - * This function is used to ask node id BEFORE memmap and mem_section's - * initialization (pfn_to_nid() can't be used yet). - * If _PXM is not defined on ACPI's DSDT, node id must be found by this. - */ -int memory_add_physaddr_to_nid(u64 addr) -{ - int nid = paddr_to_nid(addr); - return (nid >= 0) ? nid : 0; -} - -EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid); -#endif - diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c index 85b52fc0308..dd27f401f0a 100644 --- a/arch/x86/mm/numa_64.c +++ b/arch/x86/mm/numa_64.c @@ -2,646 +2,13 @@ * Generic VM initialization for x86-64 NUMA setups. * Copyright 2002,2003 Andi Kleen, SuSE Labs. */ -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/string.h> -#include <linux/init.h> #include <linux/bootmem.h> -#include <linux/memblock.h> -#include <linux/mmzone.h> -#include <linux/ctype.h> -#include <linux/module.h> -#include <linux/nodemask.h> -#include <linux/sched.h> -#include <linux/acpi.h> - -#include <asm/e820.h> -#include <asm/proto.h> -#include <asm/dma.h> -#include <asm/acpi.h> -#include <asm/amd_nb.h> #include "numa_internal.h" -struct pglist_data *node_data[MAX_NUMNODES] __read_mostly; -EXPORT_SYMBOL(node_data); - -nodemask_t numa_nodes_parsed __initdata; - -struct memnode memnode; - -static unsigned long __initdata nodemap_addr; -static unsigned long __initdata nodemap_size; - -static struct numa_meminfo numa_meminfo __initdata; - -static int numa_distance_cnt; -static u8 *numa_distance; - -/* - * Given a shift value, try to populate memnodemap[] - * Returns : - * 1 if OK - * 0 if memnodmap[] too small (of shift too small) - * -1 if node overlap or lost ram (shift too big) - */ -static int __init populate_memnodemap(const struct numa_meminfo *mi, int shift) -{ - unsigned long addr, end; - int i, res = -1; - - memset(memnodemap, 0xff, sizeof(s16)*memnodemapsize); - for (i = 0; i < mi->nr_blks; i++) { - addr = mi->blk[i].start; - end = mi->blk[i].end; - if (addr >= end) - continue; - if ((end >> shift) >= memnodemapsize) - return 0; - do { - if (memnodemap[addr >> shift] != NUMA_NO_NODE) - return -1; - memnodemap[addr >> shift] = mi->blk[i].nid; - addr += (1UL << shift); - } while (addr < end); - res = 1; - } - return res; -} - -static int __init allocate_cachealigned_memnodemap(void) -{ - unsigned long addr; - - memnodemap = memnode.embedded_map; - if (memnodemapsize <= ARRAY_SIZE(memnode.embedded_map)) - return 0; - - addr = 0x8000; - nodemap_size = roundup(sizeof(s16) * memnodemapsize, L1_CACHE_BYTES); - nodemap_addr = memblock_find_in_range(addr, get_max_mapped(), - nodemap_size, L1_CACHE_BYTES); - if (nodemap_addr == MEMBLOCK_ERROR) { - printk(KERN_ERR - "NUMA: Unable to allocate Memory to Node hash map\n"); - nodemap_addr = nodemap_size = 0; - return -1; - } - memnodemap = phys_to_virt(nodemap_addr); - memblock_x86_reserve_range(nodemap_addr, nodemap_addr + nodemap_size, "MEMNODEMAP"); - - printk(KERN_DEBUG "NUMA: Allocated memnodemap from %lx - %lx\n", - nodemap_addr, nodemap_addr + nodemap_size); - return 0; -} - -/* - * The LSB of all start and end addresses in the node map is the value of the - * maximum possible shift. - */ -static int __init extract_lsb_from_nodes(const struct numa_meminfo *mi) -{ - int i, nodes_used = 0; - unsigned long start, end; - unsigned long bitfield = 0, memtop = 0; - - for (i = 0; i < mi->nr_blks; i++) { - start = mi->blk[i].start; - end = mi->blk[i].end; - if (start >= end) - continue; - bitfield |= start; - nodes_used++; - if (end > memtop) - memtop = end; - } - if (nodes_used <= 1) - i = 63; - else - i = find_first_bit(&bitfield, sizeof(unsigned long)*8); - memnodemapsize = (memtop >> i)+1; - return i; -} - -static int __init compute_hash_shift(const struct numa_meminfo *mi) -{ - int shift; - - shift = extract_lsb_from_nodes(mi); - if (allocate_cachealigned_memnodemap()) - return -1; - printk(KERN_DEBUG "NUMA: Using %d for the hash shift.\n", - shift); - - if (populate_memnodemap(mi, shift) != 1) { - printk(KERN_INFO "Your memory is not aligned you need to " - "rebuild your kernel with a bigger NODEMAPSIZE " - "shift=%d\n", shift); - return -1; - } - return shift; -} - -int __meminit __early_pfn_to_nid(unsigned long pfn) -{ - return phys_to_nid(pfn << PAGE_SHIFT); -} - -static void * __init early_node_mem(int nodeid, unsigned long start, - unsigned long end, unsigned long size, - unsigned long align) -{ - unsigned long mem; - - /* - * put it on high as possible - * something will go with NODE_DATA - */ - if (start < (MAX_DMA_PFN<<PAGE_SHIFT)) - start = MAX_DMA_PFN<<PAGE_SHIFT; - if (start < (MAX_DMA32_PFN<<PAGE_SHIFT) && - end > (MAX_DMA32_PFN<<PAGE_SHIFT)) - start = MAX_DMA32_PFN<<PAGE_SHIFT; - mem = memblock_x86_find_in_range_node(nodeid, start, end, size, align); - if (mem != MEMBLOCK_ERROR) - return __va(mem); - - /* extend the search scope */ - end = max_pfn_mapped << PAGE_SHIFT; - start = MAX_DMA_PFN << PAGE_SHIFT; - mem = memblock_find_in_range(start, end, size, align); - if (mem != MEMBLOCK_ERROR) - return __va(mem); - - printk(KERN_ERR "Cannot find %lu bytes in node %d\n", - size, nodeid); - - return NULL; -} - -static int __init numa_add_memblk_to(int nid, u64 start, u64 end, - struct numa_meminfo *mi) -{ - /* ignore zero length blks */ - if (start == end) - return 0; - - /* whine about and ignore invalid blks */ - if (start > end || nid < 0 || nid >= MAX_NUMNODES) { - pr_warning("NUMA: Warning: invalid memblk node %d (%Lx-%Lx)\n", - nid, start, end); - return 0; - } - - if (mi->nr_blks >= NR_NODE_MEMBLKS) { - pr_err("NUMA: too many memblk ranges\n"); - return -EINVAL; - } - - mi->blk[mi->nr_blks].start = start; - mi->blk[mi->nr_blks].end = end; - mi->blk[mi->nr_blks].nid = nid; - mi->nr_blks++; - return 0; -} - -/** - * numa_remove_memblk_from - Remove one numa_memblk from a numa_meminfo - * @idx: Index of memblk to remove - * @mi: numa_meminfo to remove memblk from - * - * Remove @idx'th numa_memblk from @mi by shifting @mi->blk[] and - * decrementing @mi->nr_blks. - */ -void __init numa_remove_memblk_from(int idx, struct numa_meminfo *mi) -{ - mi->nr_blks--; - memmove(&mi->blk[idx], &mi->blk[idx + 1], - (mi->nr_blks - idx) * sizeof(mi->blk[0])); -} - -/** - * numa_add_memblk - Add one numa_memblk to numa_meminfo - * @nid: NUMA node ID of the new memblk - * @start: Start address of the new memblk - * @end: End address of the new memblk - * - * Add a new memblk to the default numa_meminfo. - * - * RETURNS: - * 0 on success, -errno on failure. - */ -int __init numa_add_memblk(int nid, u64 start, u64 end) -{ - return numa_add_memblk_to(nid, start, end, &numa_meminfo); -} - -/* Initialize bootmem allocator for a node */ -void __init -setup_node_bootmem(int nodeid, unsigned long start, unsigned long end) -{ - unsigned long start_pfn, last_pfn, nodedata_phys; - const int pgdat_size = roundup(sizeof(pg_data_t), PAGE_SIZE); - int nid; - - if (!end) - return; - - /* - * Don't confuse VM with a node that doesn't have the - * minimum amount of memory: - */ - if (end && (end - start) < NODE_MIN_SIZE) - return; - - start = roundup(start, ZONE_ALIGN); - - printk(KERN_INFO "Initmem setup node %d %016lx-%016lx\n", nodeid, - start, end); - - start_pfn = start >> PAGE_SHIFT; - last_pfn = end >> PAGE_SHIFT; - - node_data[nodeid] = early_node_mem(nodeid, start, end, pgdat_size, - SMP_CACHE_BYTES); - if (node_data[nodeid] == NULL) - return; - nodedata_phys = __pa(node_data[nodeid]); - memblock_x86_reserve_range(nodedata_phys, nodedata_phys + pgdat_size, "NODE_DATA"); - printk(KERN_INFO " NODE_DATA [%016lx - %016lx]\n", nodedata_phys, - nodedata_phys + pgdat_size - 1); - nid = phys_to_nid(nodedata_phys); - if (nid != nodeid) - printk(KERN_INFO " NODE_DATA(%d) on node %d\n", nodeid, nid); - - memset(NODE_DATA(nodeid), 0, sizeof(pg_data_t)); - NODE_DATA(nodeid)->node_id = nodeid; - NODE_DATA(nodeid)->node_start_pfn = start_pfn; - NODE_DATA(nodeid)->node_spanned_pages = last_pfn - start_pfn; - - node_set_online(nodeid); -} - -/** - * numa_cleanup_meminfo - Cleanup a numa_meminfo - * @mi: numa_meminfo to clean up - * - * Sanitize @mi by merging and removing unncessary memblks. Also check for - * conflicts and clear unused memblks. - * - * RETURNS: - * 0 on success, -errno on failure. - */ -int __init numa_cleanup_meminfo(struct numa_meminfo *mi) -{ - const u64 low = 0; - const u64 high = (u64)max_pfn << PAGE_SHIFT; - int i, j, k; - - for (i = 0; i < mi->nr_blks; i++) { - struct numa_memblk *bi = &mi->blk[i]; - - /* make sure all blocks are inside the limits */ - bi->start = max(bi->start, low); - bi->end = min(bi->end, high); - - /* and there's no empty block */ - if (bi->start >= bi->end) { - numa_remove_memblk_from(i--, mi); - continue; - } - - for (j = i + 1; j < mi->nr_blks; j++) { - struct numa_memblk *bj = &mi->blk[j]; - unsigned long start, end; - - /* - * See whether there are overlapping blocks. Whine - * about but allow overlaps of the same nid. They - * will be merged below. - */ - if (bi->end > bj->start && bi->start < bj->end) { - if (bi->nid != bj->nid) { - pr_err("NUMA: node %d (%Lx-%Lx) overlaps with node %d (%Lx-%Lx)\n", - bi->nid, bi->start, bi->end, - bj->nid, bj->start, bj->end); - return -EINVAL; - } - pr_warning("NUMA: Warning: node %d (%Lx-%Lx) overlaps with itself (%Lx-%Lx)\n", - bi->nid, bi->start, bi->end, - bj->start, bj->end); - } - - /* - * Join together blocks on the same node, holes - * between which don't overlap with memory on other - * nodes. - */ - if (bi->nid != bj->nid) - continue; - start = max(min(bi->start, bj->start), low); - end = min(max(bi->end, bj->end), high); - for (k = 0; k < mi->nr_blks; k++) { - struct numa_memblk *bk = &mi->blk[k]; - - if (bi->nid == bk->nid) - continue; - if (start < bk->end && end > bk->start) - break; - } - if (k < mi->nr_blks) - continue; - printk(KERN_INFO "NUMA: Node %d [%Lx,%Lx) + [%Lx,%Lx) -> [%lx,%lx)\n", - bi->nid, bi->start, bi->end, bj->start, bj->end, - start, end); - bi->start = start; - bi->end = end; - numa_remove_memblk_from(j--, mi); - } - } - - for (i = mi->nr_blks; i < ARRAY_SIZE(mi->blk); i++) { - mi->blk[i].start = mi->blk[i].end = 0; - mi->blk[i].nid = NUMA_NO_NODE; - } - - return 0; -} - -/* - * Set nodes, which have memory in @mi, in *@nodemask. - */ -static void __init numa_nodemask_from_meminfo(nodemask_t *nodemask, - const struct numa_meminfo *mi) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(mi->blk); i++) - if (mi->blk[i].start != mi->blk[i].end && - mi->blk[i].nid != NUMA_NO_NODE) - node_set(mi->blk[i].nid, *nodemask); -} - -/** - * numa_reset_distance - Reset NUMA distance table - * - * The current table is freed. The next numa_set_distance() call will - * create a new one. - */ -void __init numa_reset_distance(void) -{ - size_t size = numa_distance_cnt * numa_distance_cnt * sizeof(numa_distance[0]); - - /* numa_distance could be 1LU marking allocation failure, test cnt */ - if (numa_distance_cnt) - memblock_x86_free_range(__pa(numa_distance), - __pa(numa_distance) + size); - numa_distance_cnt = 0; - numa_distance = NULL; /* enable table creation */ -} - -static int __init numa_alloc_distance(void) -{ - nodemask_t nodes_parsed; - size_t size; - int i, j, cnt = 0; - u64 phys; - - /* size the new table and allocate it */ - nodes_parsed = numa_nodes_parsed; - numa_nodemask_from_meminfo(&nodes_parsed, &numa_meminfo); - - for_each_node_mask(i, nodes_parsed) - cnt = i; - cnt++; - size = cnt * cnt * sizeof(numa_distance[0]); - - phys = memblock_find_in_range(0, (u64)max_pfn_mapped << PAGE_SHIFT, - size, PAGE_SIZE); - if (phys == MEMBLOCK_ERROR) { - pr_warning("NUMA: Warning: can't allocate distance table!\n"); - /* don't retry until explicitly reset */ - numa_distance = (void *)1LU; - return -ENOMEM; - } - memblock_x86_reserve_range(phys, phys + size, "NUMA DIST"); - - numa_distance = __va(phys); - numa_distance_cnt = cnt; - - /* fill with the default distances */ - for (i = 0; i < cnt; i++) - for (j = 0; j < cnt; j++) - numa_distance[i * cnt + j] = i == j ? - LOCAL_DISTANCE : REMOTE_DISTANCE; - printk(KERN_DEBUG "NUMA: Initialized distance table, cnt=%d\n", cnt); - - return 0; -} - -/** - * numa_set_distance - Set NUMA distance from one NUMA to another - * @from: the 'from' node to set distance - * @to: the 'to' node to set distance - * @distance: NUMA distance - * - * Set the distance from node @from to @to to @distance. If distance table - * doesn't exist, one which is large enough to accommodate all the currently - * known nodes will be created. - * - * If such table cannot be allocated, a warning is printed and further - * calls are ignored until the distance table is reset with - * numa_reset_distance(). - * - * If @from or @to is higher than the highest known node at the time of - * table creation or @distance doesn't make sense, the call is ignored. - * This is to allow simplification of specific NUMA config implementations. - */ -void __init numa_set_distance(int from, int to, int distance) -{ - if (!numa_distance && numa_alloc_distance() < 0) - return; - - if (from >= numa_distance_cnt || to >= numa_distance_cnt) { - printk_once(KERN_DEBUG "NUMA: Debug: distance out of bound, from=%d to=%d distance=%d\n", - from, to, distance); - return; - } - - if ((u8)distance != distance || - (from == to && distance != LOCAL_DISTANCE)) { - pr_warn_once("NUMA: Warning: invalid distance parameter, from=%d to=%d distance=%d\n", - from, to, distance); - return; - } - - numa_distance[from * numa_distance_cnt + to] = distance; -} - -int __node_distance(int from, int to) -{ - if (from >= numa_distance_cnt || to >= numa_distance_cnt) - return from == to ? LOCAL_DISTANCE : REMOTE_DISTANCE; - return numa_distance[from * numa_distance_cnt + to]; -} -EXPORT_SYMBOL(__node_distance); - -/* - * Sanity check to catch more bad NUMA configurations (they are amazingly - * common). Make sure the nodes cover all memory. - */ -static bool __init numa_meminfo_cover_memory(const struct numa_meminfo *mi) -{ - unsigned long numaram, e820ram; - int i; - - numaram = 0; - for (i = 0; i < mi->nr_blks; i++) { - unsigned long s = mi->blk[i].start >> PAGE_SHIFT; - unsigned long e = mi->blk[i].end >> PAGE_SHIFT; - numaram += e - s; - numaram -= __absent_pages_in_range(mi->blk[i].nid, s, e); - if ((long)numaram < 0) - numaram = 0; - } - - e820ram = max_pfn - (memblock_x86_hole_size(0, - max_pfn << PAGE_SHIFT) >> PAGE_SHIFT); - /* We seem to lose 3 pages somewhere. Allow 1M of slack. */ - if ((long)(e820ram - numaram) >= (1 << (20 - PAGE_SHIFT))) { - printk(KERN_ERR "NUMA: nodes only cover %luMB of your %luMB e820 RAM. Not used.\n", - (numaram << PAGE_SHIFT) >> 20, - (e820ram << PAGE_SHIFT) >> 20); - return false; - } - return true; -} - -static int __init numa_register_memblks(struct numa_meminfo *mi) -{ - int i, nid; - - /* Account for nodes with cpus and no memory */ - node_possible_map = numa_nodes_parsed; - numa_nodemask_from_meminfo(&node_possible_map, mi); - if (WARN_ON(nodes_empty(node_possible_map))) - return -EINVAL; - - memnode_shift = compute_hash_shift(mi); - if (memnode_shift < 0) { - printk(KERN_ERR "NUMA: No NUMA node hash function found. Contact maintainer\n"); - return -EINVAL; - } - - for (i = 0; i < mi->nr_blks; i++) - memblock_x86_register_active_regions(mi->blk[i].nid, - mi->blk[i].start >> PAGE_SHIFT, - mi->blk[i].end >> PAGE_SHIFT); - - /* for out of order entries */ - sort_node_map(); - if (!numa_meminfo_cover_memory(mi)) - return -EINVAL; - - /* Finally register nodes. */ - for_each_node_mask(nid, node_possible_map) { - u64 start = (u64)max_pfn << PAGE_SHIFT; - u64 end = 0; - - for (i = 0; i < mi->nr_blks; i++) { - if (nid != mi->blk[i].nid) - continue; - start = min(mi->blk[i].start, start); - end = max(mi->blk[i].end, end); - } - - if (start < end) - setup_node_bootmem(nid, start, end); - } - - return 0; -} - -/** - * dummy_numma_init - Fallback dummy NUMA init - * - * Used if there's no underlying NUMA architecture, NUMA initialization - * fails, or NUMA is disabled on the command line. - * - * Must online at least one node and add memory blocks that cover all - * allowed memory. This function must not fail. - */ -static int __init dummy_numa_init(void) -{ - printk(KERN_INFO "%s\n", - numa_off ? "NUMA turned off" : "No NUMA configuration found"); - printk(KERN_INFO "Faking a node at %016lx-%016lx\n", - 0LU, max_pfn << PAGE_SHIFT); - - node_set(0, numa_nodes_parsed); - numa_add_memblk(0, 0, (u64)max_pfn << PAGE_SHIFT); - - return 0; -} - -static int __init numa_init(int (*init_func)(void)) -{ - int i; - int ret; - - for (i = 0; i < MAX_LOCAL_APIC; i++) - set_apicid_to_node(i, NUMA_NO_NODE); - - nodes_clear(numa_nodes_parsed); - nodes_clear(node_possible_map); - nodes_clear(node_online_map); - memset(&numa_meminfo, 0, sizeof(numa_meminfo)); - remove_all_active_ranges(); - numa_reset_distance(); - - ret = init_func(); - if (ret < 0) - return ret; - ret = numa_cleanup_meminfo(&numa_meminfo); - if (ret < 0) - return ret; - - numa_emulation(&numa_meminfo, numa_distance_cnt); - - ret = numa_register_memblks(&numa_meminfo); - if (ret < 0) - return ret; - - for (i = 0; i < nr_cpu_ids; i++) { - int nid = early_cpu_to_node(i); - - if (nid == NUMA_NO_NODE) - continue; - if (!node_online(nid)) - numa_clear_node(i); - } - numa_init_array(); - return 0; -} - void __init initmem_init(void) { - int ret; - - if (!numa_off) { -#ifdef CONFIG_ACPI_NUMA - ret = numa_init(x86_acpi_numa_init); - if (!ret) - return; -#endif -#ifdef CONFIG_AMD_NUMA - ret = numa_init(amd_numa_init); - if (!ret) - return; -#endif - } - - numa_init(dummy_numa_init); + x86_numa_init(); } unsigned long __init numa_free_all_bootmem(void) @@ -656,12 +23,3 @@ unsigned long __init numa_free_all_bootmem(void) return pages; } - -int __cpuinit numa_cpu_node(int cpu) -{ - int apicid = early_per_cpu(x86_cpu_to_apicid, cpu); - - if (apicid != BAD_APICID) - return __apicid_to_node[apicid]; - return NUMA_NO_NODE; -} diff --git a/arch/x86/mm/numa_emulation.c b/arch/x86/mm/numa_emulation.c index de84cc14037..d0ed086b624 100644 --- a/arch/x86/mm/numa_emulation.c +++ b/arch/x86/mm/numa_emulation.c @@ -5,6 +5,7 @@ #include <linux/errno.h> #include <linux/topology.h> #include <linux/memblock.h> +#include <linux/bootmem.h> #include <asm/dma.h> #include "numa_internal.h" @@ -84,7 +85,13 @@ static int __init split_nodes_interleave(struct numa_meminfo *ei, nr_nodes = MAX_NUMNODES; } - size = (max_addr - addr - memblock_x86_hole_size(addr, max_addr)) / nr_nodes; + /* + * Calculate target node size. x86_32 freaks on __udivdi3() so do + * the division in ulong number of pages and convert back. + */ + size = max_addr - addr - memblock_x86_hole_size(addr, max_addr); + size = PFN_PHYS((unsigned long)(size >> PAGE_SHIFT) / nr_nodes); + /* * Calculate the number of big nodes that can be allocated as a result * of consolidating the remainder. @@ -226,7 +233,7 @@ static int __init split_nodes_size_interleave(struct numa_meminfo *ei, */ while (nodes_weight(physnode_mask)) { for_each_node_mask(i, physnode_mask) { - u64 dma32_end = MAX_DMA32_PFN << PAGE_SHIFT; + u64 dma32_end = PFN_PHYS(MAX_DMA32_PFN); u64 start, limit, end; int phys_blk; @@ -298,7 +305,7 @@ void __init numa_emulation(struct numa_meminfo *numa_meminfo, int numa_dist_cnt) { static struct numa_meminfo ei __initdata; static struct numa_meminfo pi __initdata; - const u64 max_addr = max_pfn << PAGE_SHIFT; + const u64 max_addr = PFN_PHYS(max_pfn); u8 *phys_dist = NULL; size_t phys_size = numa_dist_cnt * numa_dist_cnt * sizeof(phys_dist[0]); int max_emu_nid, dfl_phys_nid; @@ -342,8 +349,7 @@ void __init numa_emulation(struct numa_meminfo *numa_meminfo, int numa_dist_cnt) if (numa_dist_cnt) { u64 phys; - phys = memblock_find_in_range(0, - (u64)max_pfn_mapped << PAGE_SHIFT, + phys = memblock_find_in_range(0, PFN_PHYS(max_pfn_mapped), phys_size, PAGE_SIZE); if (phys == MEMBLOCK_ERROR) { pr_warning("NUMA: Warning: can't allocate copy of distance table, disabling emulation\n"); diff --git a/arch/x86/mm/numa_internal.h b/arch/x86/mm/numa_internal.h index ef2d97377d7..7178c3afe05 100644 --- a/arch/x86/mm/numa_internal.h +++ b/arch/x86/mm/numa_internal.h @@ -19,6 +19,14 @@ void __init numa_remove_memblk_from(int idx, struct numa_meminfo *mi); int __init numa_cleanup_meminfo(struct numa_meminfo *mi); void __init numa_reset_distance(void); +void __init x86_numa_init(void); + +#ifdef CONFIG_X86_64 +static inline void init_alloc_remap(int nid, u64 start, u64 end) { } +#else +void __init init_alloc_remap(int nid, u64 start, u64 end); +#endif + #ifdef CONFIG_NUMA_EMU void __init numa_emulation(struct numa_meminfo *numa_meminfo, int numa_dist_cnt); diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat.c index 8e9d3394f6d..81dbfdeb080 100644 --- a/arch/x86/mm/srat_64.c +++ b/arch/x86/mm/srat.c @@ -26,8 +26,6 @@ int acpi_numa __initdata; -static struct bootnode nodes_add[MAX_NUMNODES]; - static __init int setup_node(int pxm) { return acpi_map_pxm_to_node(pxm); @@ -37,7 +35,6 @@ static __init void bad_srat(void) { printk(KERN_ERR "SRAT: SRAT not used.\n"); acpi_numa = -1; - memset(nodes_add, 0, sizeof(nodes_add)); } static __init inline int srat_disabled(void) @@ -131,73 +128,17 @@ acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) pxm, apic_id, node); } -#ifdef CONFIG_MEMORY_HOTPLUG_SPARSE +#ifdef CONFIG_MEMORY_HOTPLUG static inline int save_add_info(void) {return 1;} #else static inline int save_add_info(void) {return 0;} #endif -/* - * Update nodes_add[] - * This code supports one contiguous hot add area per node - */ -static void __init -update_nodes_add(int node, unsigned long start, unsigned long end) -{ - unsigned long s_pfn = start >> PAGE_SHIFT; - unsigned long e_pfn = end >> PAGE_SHIFT; - int changed = 0; - struct bootnode *nd = &nodes_add[node]; - - /* I had some trouble with strange memory hotadd regions breaking - the boot. Be very strict here and reject anything unexpected. - If you want working memory hotadd write correct SRATs. - - The node size check is a basic sanity check to guard against - mistakes */ - if ((signed long)(end - start) < NODE_MIN_SIZE) { - printk(KERN_ERR "SRAT: Hotplug area too small\n"); - return; - } - - /* This check might be a bit too strict, but I'm keeping it for now. */ - if (absent_pages_in_range(s_pfn, e_pfn) != e_pfn - s_pfn) { - printk(KERN_ERR - "SRAT: Hotplug area %lu -> %lu has existing memory\n", - s_pfn, e_pfn); - return; - } - - /* Looks good */ - - if (nd->start == nd->end) { - nd->start = start; - nd->end = end; - changed = 1; - } else { - if (nd->start == end) { - nd->start = start; - changed = 1; - } - if (nd->end == start) { - nd->end = end; - changed = 1; - } - if (!changed) - printk(KERN_ERR "SRAT: Hotplug zone not continuous. Partly ignored\n"); - } - - if (changed) { - node_set(node, numa_nodes_parsed); - printk(KERN_INFO "SRAT: hot plug zone found %Lx - %Lx\n", - nd->start, nd->end); - } -} /* Callback for parsing of the Proximity Domain <-> Memory Area mappings */ void __init acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma) { - unsigned long start, end; + u64 start, end; int node, pxm; if (srat_disabled()) @@ -226,11 +167,8 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma) return; } - printk(KERN_INFO "SRAT: Node %u PXM %u %lx-%lx\n", node, pxm, + printk(KERN_INFO "SRAT: Node %u PXM %u %Lx-%Lx\n", node, pxm, start, end); - - if (ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE) - update_nodes_add(node, start, end); } void __init acpi_numa_arch_fixup(void) {} @@ -244,17 +182,3 @@ int __init x86_acpi_numa_init(void) return ret; return srat_disabled() ? -EINVAL : 0; } - -#if defined(CONFIG_MEMORY_HOTPLUG_SPARSE) || defined(CONFIG_ACPI_HOTPLUG_MEMORY) -int memory_add_physaddr_to_nid(u64 start) -{ - int i, ret = 0; - - for_each_node(i) - if (nodes_add[i].start <= start && nodes_add[i].end > start) - ret = i; - - return ret; -} -EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid); -#endif diff --git a/arch/x86/mm/srat_32.c b/arch/x86/mm/srat_32.c deleted file mode 100644 index 364f36bdfad..00000000000 --- a/arch/x86/mm/srat_32.c +++ /dev/null @@ -1,288 +0,0 @@ -/* - * Some of the code in this file has been gleaned from the 64 bit - * discontigmem support code base. - * - * Copyright (C) 2002, IBM Corp. - * - * All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or - * NON INFRINGEMENT. See the GNU General Public License for more - * details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - * Send feedback to Pat Gaughen <gone@us.ibm.com> - */ -#include <linux/mm.h> -#include <linux/bootmem.h> -#include <linux/memblock.h> -#include <linux/mmzone.h> -#include <linux/acpi.h> -#include <linux/nodemask.h> -#include <asm/srat.h> -#include <asm/topology.h> -#include <asm/smp.h> -#include <asm/e820.h> - -/* - * proximity macros and definitions - */ -#define NODE_ARRAY_INDEX(x) ((x) / 8) /* 8 bits/char */ -#define NODE_ARRAY_OFFSET(x) ((x) % 8) /* 8 bits/char */ -#define BMAP_SET(bmap, bit) ((bmap)[NODE_ARRAY_INDEX(bit)] |= 1 << NODE_ARRAY_OFFSET(bit)) -#define BMAP_TEST(bmap, bit) ((bmap)[NODE_ARRAY_INDEX(bit)] & (1 << NODE_ARRAY_OFFSET(bit))) -/* bitmap length; _PXM is at most 255 */ -#define PXM_BITMAP_LEN (MAX_PXM_DOMAINS / 8) -static u8 __initdata pxm_bitmap[PXM_BITMAP_LEN]; /* bitmap of proximity domains */ - -#define MAX_CHUNKS_PER_NODE 3 -#define MAXCHUNKS (MAX_CHUNKS_PER_NODE * MAX_NUMNODES) -struct node_memory_chunk_s { - unsigned long start_pfn; - unsigned long end_pfn; - u8 pxm; // proximity domain of node - u8 nid; // which cnode contains this chunk? - u8 bank; // which mem bank on this node -}; -static struct node_memory_chunk_s __initdata node_memory_chunk[MAXCHUNKS]; - -static int __initdata num_memory_chunks; /* total number of memory chunks */ -static u8 __initdata apicid_to_pxm[MAX_LOCAL_APIC]; - -int acpi_numa __initdata; - -static __init void bad_srat(void) -{ - printk(KERN_ERR "SRAT: SRAT not used.\n"); - acpi_numa = -1; - num_memory_chunks = 0; -} - -static __init inline int srat_disabled(void) -{ - return numa_off || acpi_numa < 0; -} - -/* Identify CPU proximity domains */ -void __init -acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *cpu_affinity) -{ - if (srat_disabled()) - return; - if (cpu_affinity->header.length != - sizeof(struct acpi_srat_cpu_affinity)) { - bad_srat(); - return; - } - - if ((cpu_affinity->flags & ACPI_SRAT_CPU_ENABLED) == 0) - return; /* empty entry */ - - /* mark this node as "seen" in node bitmap */ - BMAP_SET(pxm_bitmap, cpu_affinity->proximity_domain_lo); - - /* don't need to check apic_id here, because it is always 8 bits */ - apicid_to_pxm[cpu_affinity->apic_id] = cpu_affinity->proximity_domain_lo; - - printk(KERN_DEBUG "CPU %02x in proximity domain %02x\n", - cpu_affinity->apic_id, cpu_affinity->proximity_domain_lo); -} - -/* - * Identify memory proximity domains and hot-remove capabilities. - * Fill node memory chunk list structure. - */ -void __init -acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *memory_affinity) -{ - unsigned long long paddr, size; - unsigned long start_pfn, end_pfn; - u8 pxm; - struct node_memory_chunk_s *p, *q, *pend; - - if (srat_disabled()) - return; - if (memory_affinity->header.length != - sizeof(struct acpi_srat_mem_affinity)) { - bad_srat(); - return; - } - - if ((memory_affinity->flags & ACPI_SRAT_MEM_ENABLED) == 0) - return; /* empty entry */ - - pxm = memory_affinity->proximity_domain & 0xff; - - /* mark this node as "seen" in node bitmap */ - BMAP_SET(pxm_bitmap, pxm); - - /* calculate info for memory chunk structure */ - paddr = memory_affinity->base_address; - size = memory_affinity->length; - - start_pfn = paddr >> PAGE_SHIFT; - end_pfn = (paddr + size) >> PAGE_SHIFT; - - - if (num_memory_chunks >= MAXCHUNKS) { - printk(KERN_WARNING "Too many mem chunks in SRAT." - " Ignoring %lld MBytes at %llx\n", - size/(1024*1024), paddr); - return; - } - - /* Insertion sort based on base address */ - pend = &node_memory_chunk[num_memory_chunks]; - for (p = &node_memory_chunk[0]; p < pend; p++) { - if (start_pfn < p->start_pfn) - break; - } - if (p < pend) { - for (q = pend; q >= p; q--) - *(q + 1) = *q; - } - p->start_pfn = start_pfn; - p->end_pfn = end_pfn; - p->pxm = pxm; - - num_memory_chunks++; - - printk(KERN_DEBUG "Memory range %08lx to %08lx" - " in proximity domain %02x %s\n", - start_pfn, end_pfn, - pxm, - ((memory_affinity->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE) ? - "enabled and removable" : "enabled" ) ); -} - -/* Callback for SLIT parsing */ -void __init acpi_numa_slit_init(struct acpi_table_slit *slit) -{ -} - -void acpi_numa_arch_fixup(void) -{ -} -/* - * The SRAT table always lists ascending addresses, so can always - * assume that the first "start" address that you see is the real - * start of the node, and that the current "end" address is after - * the previous one. - */ -static __init int node_read_chunk(int nid, struct node_memory_chunk_s *memory_chunk) -{ - /* - * Only add present memory as told by the e820. - * There is no guarantee from the SRAT that the memory it - * enumerates is present at boot time because it represents - * *possible* memory hotplug areas the same as normal RAM. - */ - if (memory_chunk->start_pfn >= max_pfn) { - printk(KERN_INFO "Ignoring SRAT pfns: %08lx - %08lx\n", - memory_chunk->start_pfn, memory_chunk->end_pfn); - return -1; - } - if (memory_chunk->nid != nid) - return -1; - - if (!node_has_online_mem(nid)) - node_start_pfn[nid] = memory_chunk->start_pfn; - - if (node_start_pfn[nid] > memory_chunk->start_pfn) - node_start_pfn[nid] = memory_chunk->start_pfn; - - if (node_end_pfn[nid] < memory_chunk->end_pfn) - node_end_pfn[nid] = memory_chunk->end_pfn; - - return 0; -} - -int __init get_memcfg_from_srat(void) -{ - int i, j, nid; - - if (srat_disabled()) - goto out_fail; - - if (acpi_numa_init() < 0) - goto out_fail; - - if (num_memory_chunks == 0) { - printk(KERN_DEBUG - "could not find any ACPI SRAT memory areas.\n"); - goto out_fail; - } - - /* Calculate total number of nodes in system from PXM bitmap and create - * a set of sequential node IDs starting at zero. (ACPI doesn't seem - * to specify the range of _PXM values.) - */ - /* - * MCD - we no longer HAVE to number nodes sequentially. PXM domain - * numbers could go as high as 256, and MAX_NUMNODES for i386 is typically - * 32, so we will continue numbering them in this manner until MAX_NUMNODES - * approaches MAX_PXM_DOMAINS for i386. - */ - nodes_clear(node_online_map); - for (i = 0; i < MAX_PXM_DOMAINS; i++) { - if (BMAP_TEST(pxm_bitmap, i)) { - int nid = acpi_map_pxm_to_node(i); - node_set_online(nid); - } - } - BUG_ON(num_online_nodes() == 0); - - /* set cnode id in memory chunk structure */ - for (i = 0; i < num_memory_chunks; i++) - node_memory_chunk[i].nid = pxm_to_node(node_memory_chunk[i].pxm); - - printk(KERN_DEBUG "pxm bitmap: "); - for (i = 0; i < sizeof(pxm_bitmap); i++) { - printk(KERN_CONT "%02x ", pxm_bitmap[i]); - } - printk(KERN_CONT "\n"); - printk(KERN_DEBUG "Number of logical nodes in system = %d\n", - num_online_nodes()); - printk(KERN_DEBUG "Number of memory chunks in system = %d\n", - num_memory_chunks); - - for (i = 0; i < MAX_LOCAL_APIC; i++) - set_apicid_to_node(i, pxm_to_node(apicid_to_pxm[i])); - - for (j = 0; j < num_memory_chunks; j++){ - struct node_memory_chunk_s * chunk = &node_memory_chunk[j]; - printk(KERN_DEBUG - "chunk %d nid %d start_pfn %08lx end_pfn %08lx\n", - j, chunk->nid, chunk->start_pfn, chunk->end_pfn); - if (node_read_chunk(chunk->nid, chunk)) - continue; - - memblock_x86_register_active_regions(chunk->nid, chunk->start_pfn, - min(chunk->end_pfn, max_pfn)); - } - /* for out of order entries in SRAT */ - sort_node_map(); - - for_each_online_node(nid) { - unsigned long start = node_start_pfn[nid]; - unsigned long end = min(node_end_pfn[nid], max_pfn); - - memory_present(nid, start, end); - node_remap_size[nid] = node_memmap_size_bytes(nid, start, end); - } - return 1; -out_fail: - printk(KERN_DEBUG "failed to get NUMA memory information from SRAT" - " table\n"); - return 0; -} diff --git a/arch/x86/oprofile/backtrace.c b/arch/x86/oprofile/backtrace.c index 2d49d4e19a3..a5b64ab4cd6 100644 --- a/arch/x86/oprofile/backtrace.c +++ b/arch/x86/oprofile/backtrace.c @@ -16,17 +16,6 @@ #include <asm/stacktrace.h> #include <linux/compat.h> -static void backtrace_warning_symbol(void *data, char *msg, - unsigned long symbol) -{ - /* Ignore warnings */ -} - -static void backtrace_warning(void *data, char *msg) -{ - /* Ignore warnings */ -} - static int backtrace_stack(void *data, char *name) { /* Yes, we want all stacks */ @@ -42,8 +31,6 @@ static void backtrace_address(void *data, unsigned long addr, int reliable) } static struct stacktrace_ops backtrace_ops = { - .warning = backtrace_warning, - .warning_symbol = backtrace_warning_symbol, .stack = backtrace_stack, .address = backtrace_address, .walk_stack = print_context_stack, diff --git a/arch/x86/pci/xen.c b/arch/x86/pci/xen.c index e37b407a0ee..8214724ce54 100644 --- a/arch/x86/pci/xen.c +++ b/arch/x86/pci/xen.c @@ -108,7 +108,8 @@ static int xen_hvm_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) } irq = xen_bind_pirq_msi_to_irq(dev, msidesc, pirq, 0, (type == PCI_CAP_ID_MSIX) ? - "msi-x" : "msi"); + "msi-x" : "msi", + DOMID_SELF); if (irq < 0) goto error; dev_dbg(&dev->dev, @@ -148,7 +149,8 @@ static int xen_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) irq = xen_bind_pirq_msi_to_irq(dev, msidesc, v[i], 0, (type == PCI_CAP_ID_MSIX) ? "pcifront-msi-x" : - "pcifront-msi"); + "pcifront-msi", + DOMID_SELF); if (irq < 0) goto free; i++; @@ -190,9 +192,16 @@ static int xen_initdom_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) list_for_each_entry(msidesc, &dev->msi_list, list) { struct physdev_map_pirq map_irq; + domid_t domid; + + domid = ret = xen_find_device_domain_owner(dev); + /* N.B. Casting int's -ENODEV to uint16_t results in 0xFFED, + * hence check ret value for < 0. */ + if (ret < 0) + domid = DOMID_SELF; memset(&map_irq, 0, sizeof(map_irq)); - map_irq.domid = DOMID_SELF; + map_irq.domid = domid; map_irq.type = MAP_PIRQ_TYPE_MSI; map_irq.index = -1; map_irq.pirq = -1; @@ -215,14 +224,16 @@ static int xen_initdom_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) ret = HYPERVISOR_physdev_op(PHYSDEVOP_map_pirq, &map_irq); if (ret) { - dev_warn(&dev->dev, "xen map irq failed %d\n", ret); + dev_warn(&dev->dev, "xen map irq failed %d for %d domain\n", + ret, domid); goto out; } ret = xen_bind_pirq_msi_to_irq(dev, msidesc, map_irq.pirq, map_irq.index, (type == PCI_CAP_ID_MSIX) ? - "msi-x" : "msi"); + "msi-x" : "msi", + domid); if (ret < 0) goto out; } @@ -461,3 +472,78 @@ void __init xen_setup_pirqs(void) } } #endif + +#ifdef CONFIG_XEN_DOM0 +struct xen_device_domain_owner { + domid_t domain; + struct pci_dev *dev; + struct list_head list; +}; + +static DEFINE_SPINLOCK(dev_domain_list_spinlock); +static struct list_head dev_domain_list = LIST_HEAD_INIT(dev_domain_list); + +static struct xen_device_domain_owner *find_device(struct pci_dev *dev) +{ + struct xen_device_domain_owner *owner; + + list_for_each_entry(owner, &dev_domain_list, list) { + if (owner->dev == dev) + return owner; + } + return NULL; +} + +int xen_find_device_domain_owner(struct pci_dev *dev) +{ + struct xen_device_domain_owner *owner; + int domain = -ENODEV; + + spin_lock(&dev_domain_list_spinlock); + owner = find_device(dev); + if (owner) + domain = owner->domain; + spin_unlock(&dev_domain_list_spinlock); + return domain; +} +EXPORT_SYMBOL_GPL(xen_find_device_domain_owner); + +int xen_register_device_domain_owner(struct pci_dev *dev, uint16_t domain) +{ + struct xen_device_domain_owner *owner; + + owner = kzalloc(sizeof(struct xen_device_domain_owner), GFP_KERNEL); + if (!owner) + return -ENODEV; + + spin_lock(&dev_domain_list_spinlock); + if (find_device(dev)) { + spin_unlock(&dev_domain_list_spinlock); + kfree(owner); + return -EEXIST; + } + owner->domain = domain; + owner->dev = dev; + list_add_tail(&owner->list, &dev_domain_list); + spin_unlock(&dev_domain_list_spinlock); + return 0; +} +EXPORT_SYMBOL_GPL(xen_register_device_domain_owner); + +int xen_unregister_device_domain_owner(struct pci_dev *dev) +{ + struct xen_device_domain_owner *owner; + + spin_lock(&dev_domain_list_spinlock); + owner = find_device(dev); + if (!owner) { + spin_unlock(&dev_domain_list_spinlock); + return -ENODEV; + } + list_del(&owner->list); + spin_unlock(&dev_domain_list_spinlock); + kfree(owner); + return 0; +} +EXPORT_SYMBOL_GPL(xen_unregister_device_domain_owner); +#endif diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c index 0fe27d7c625..b30aa26a8df 100644 --- a/arch/x86/platform/efi/efi.c +++ b/arch/x86/platform/efi/efi.c @@ -145,17 +145,6 @@ static void virt_efi_reset_system(int reset_type, data_size, data); } -static efi_status_t virt_efi_set_virtual_address_map( - unsigned long memory_map_size, - unsigned long descriptor_size, - u32 descriptor_version, - efi_memory_desc_t *virtual_map) -{ - return efi_call_virt4(set_virtual_address_map, - memory_map_size, descriptor_size, - descriptor_version, virtual_map); -} - static efi_status_t __init phys_efi_set_virtual_address_map( unsigned long memory_map_size, unsigned long descriptor_size, @@ -468,11 +457,25 @@ void __init efi_init(void) #endif } +void __init efi_set_executable(efi_memory_desc_t *md, bool executable) +{ + u64 addr, npages; + + addr = md->virt_addr; + npages = md->num_pages; + + memrange_efi_to_native(&addr, &npages); + + if (executable) + set_memory_x(addr, npages); + else + set_memory_nx(addr, npages); +} + static void __init runtime_code_page_mkexec(void) { efi_memory_desc_t *md; void *p; - u64 addr, npages; /* Make EFI runtime service code area executable */ for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) { @@ -481,10 +484,7 @@ static void __init runtime_code_page_mkexec(void) if (md->type != EFI_RUNTIME_SERVICES_CODE) continue; - addr = md->virt_addr; - npages = md->num_pages; - memrange_efi_to_native(&addr, &npages); - set_memory_x(addr, npages); + efi_set_executable(md, true); } } @@ -498,13 +498,42 @@ static void __init runtime_code_page_mkexec(void) */ void __init efi_enter_virtual_mode(void) { - efi_memory_desc_t *md; + efi_memory_desc_t *md, *prev_md = NULL; efi_status_t status; unsigned long size; u64 end, systab, addr, npages, end_pfn; - void *p, *va; + void *p, *va, *new_memmap = NULL; + int count = 0; efi.systab = NULL; + + /* Merge contiguous regions of the same type and attribute */ + for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) { + u64 prev_size; + md = p; + + if (!prev_md) { + prev_md = md; + continue; + } + + if (prev_md->type != md->type || + prev_md->attribute != md->attribute) { + prev_md = md; + continue; + } + + prev_size = prev_md->num_pages << EFI_PAGE_SHIFT; + + if (md->phys_addr == (prev_md->phys_addr + prev_size)) { + prev_md->num_pages += md->num_pages; + md->type = EFI_RESERVED_TYPE; + md->attribute = 0; + continue; + } + prev_md = md; + } + for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) { md = p; if (!(md->attribute & EFI_MEMORY_RUNTIME)) @@ -541,15 +570,21 @@ void __init efi_enter_virtual_mode(void) systab += md->virt_addr - md->phys_addr; efi.systab = (efi_system_table_t *) (unsigned long) systab; } + new_memmap = krealloc(new_memmap, + (count + 1) * memmap.desc_size, + GFP_KERNEL); + memcpy(new_memmap + (count * memmap.desc_size), md, + memmap.desc_size); + count++; } BUG_ON(!efi.systab); status = phys_efi_set_virtual_address_map( - memmap.desc_size * memmap.nr_map, + memmap.desc_size * count, memmap.desc_size, memmap.desc_version, - memmap.phys_map); + (efi_memory_desc_t *)__pa(new_memmap)); if (status != EFI_SUCCESS) { printk(KERN_ALERT "Unable to switch EFI into virtual mode " @@ -572,11 +607,12 @@ void __init efi_enter_virtual_mode(void) efi.set_variable = virt_efi_set_variable; efi.get_next_high_mono_count = virt_efi_get_next_high_mono_count; efi.reset_system = virt_efi_reset_system; - efi.set_virtual_address_map = virt_efi_set_virtual_address_map; + efi.set_virtual_address_map = NULL; if (__supported_pte_mask & _PAGE_NX) runtime_code_page_mkexec(); early_iounmap(memmap.map, memmap.nr_map * memmap.desc_size); memmap.map = NULL; + kfree(new_memmap); } /* diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c index ac0621a7ac3..2649426a790 100644 --- a/arch/x86/platform/efi/efi_64.c +++ b/arch/x86/platform/efi/efi_64.c @@ -41,22 +41,7 @@ static pgd_t save_pgd __initdata; static unsigned long efi_flags __initdata; -static void __init early_mapping_set_exec(unsigned long start, - unsigned long end, - int executable) -{ - unsigned long num_pages; - - start &= PMD_MASK; - end = (end + PMD_SIZE - 1) & PMD_MASK; - num_pages = (end - start) >> PAGE_SHIFT; - if (executable) - set_memory_x((unsigned long)__va(start), num_pages); - else - set_memory_nx((unsigned long)__va(start), num_pages); -} - -static void __init early_runtime_code_mapping_set_exec(int executable) +static void __init early_code_mapping_set_exec(int executable) { efi_memory_desc_t *md; void *p; @@ -67,11 +52,8 @@ static void __init early_runtime_code_mapping_set_exec(int executable) /* Make EFI runtime service code area executable */ for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) { md = p; - if (md->type == EFI_RUNTIME_SERVICES_CODE) { - unsigned long end; - end = md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT); - early_mapping_set_exec(md->phys_addr, end, executable); - } + if (md->type == EFI_RUNTIME_SERVICES_CODE) + efi_set_executable(md, executable); } } @@ -79,7 +61,7 @@ void __init efi_call_phys_prelog(void) { unsigned long vaddress; - early_runtime_code_mapping_set_exec(1); + early_code_mapping_set_exec(1); local_irq_save(efi_flags); vaddress = (unsigned long)__va(0x0UL); save_pgd = *pgd_offset_k(0x0UL); @@ -95,7 +77,7 @@ void __init efi_call_phys_epilog(void) set_pgd(pgd_offset_k(0x0UL), save_pgd); __flush_tlb_all(); local_irq_restore(efi_flags); - early_runtime_code_mapping_set_exec(0); + early_code_mapping_set_exec(0); } void __iomem *__init efi_ioremap(unsigned long phys_addr, unsigned long size, @@ -107,8 +89,10 @@ void __iomem *__init efi_ioremap(unsigned long phys_addr, unsigned long size, return ioremap(phys_addr, size); last_map_pfn = init_memory_mapping(phys_addr, phys_addr + size); - if ((last_map_pfn << PAGE_SHIFT) < phys_addr + size) - return NULL; + if ((last_map_pfn << PAGE_SHIFT) < phys_addr + size) { + unsigned long top = last_map_pfn << PAGE_SHIFT; + efi_ioremap(top, size - (top - phys_addr), type); + } return (void __iomem *)__va(phys_addr); } diff --git a/arch/x86/platform/mrst/mrst.c b/arch/x86/platform/mrst/mrst.c index 275dbc19e2c..7000e74b308 100644 --- a/arch/x86/platform/mrst/mrst.c +++ b/arch/x86/platform/mrst/mrst.c @@ -194,7 +194,7 @@ static unsigned long __init mrst_calibrate_tsc(void) return 0; } -void __init mrst_time_init(void) +static void __init mrst_time_init(void) { sfi_table_parse(SFI_SIG_MTMR, NULL, NULL, sfi_parse_mtmr); switch (mrst_timer_options) { @@ -216,7 +216,7 @@ void __init mrst_time_init(void) apbt_time_init(); } -void __cpuinit mrst_arch_setup(void) +static void __cpuinit mrst_arch_setup(void) { if (boot_cpu_data.x86 == 6 && boot_cpu_data.x86_model == 0x27) __mrst_cpu_chip = MRST_CPU_CHIP_PENWELL; diff --git a/arch/x86/platform/olpc/Makefile b/arch/x86/platform/olpc/Makefile index c2a8cab65e5..81c5e2165c2 100644 --- a/arch/x86/platform/olpc/Makefile +++ b/arch/x86/platform/olpc/Makefile @@ -1,4 +1,2 @@ -obj-$(CONFIG_OLPC) += olpc.o +obj-$(CONFIG_OLPC) += olpc.o olpc_ofw.o olpc_dt.o obj-$(CONFIG_OLPC_XO1) += olpc-xo1.o -obj-$(CONFIG_OLPC) += olpc_ofw.o -obj-$(CONFIG_OF_PROMTREE) += olpc_dt.o diff --git a/arch/x86/platform/olpc/olpc.c b/arch/x86/platform/olpc/olpc.c index edaf3fe8dc5..0060fd59ea0 100644 --- a/arch/x86/platform/olpc/olpc.c +++ b/arch/x86/platform/olpc/olpc.c @@ -18,6 +18,7 @@ #include <linux/io.h> #include <linux/string.h> #include <linux/platform_device.h> +#include <linux/of.h> #include <asm/geode.h> #include <asm/setup.h> @@ -187,41 +188,43 @@ err: } EXPORT_SYMBOL_GPL(olpc_ec_cmd); -static bool __init check_ofw_architecture(void) +static bool __init check_ofw_architecture(struct device_node *root) { - size_t propsize; - char olpc_arch[5]; - const void *args[] = { NULL, "architecture", olpc_arch, (void *)5 }; - void *res[] = { &propsize }; + const char *olpc_arch; + int propsize; - if (olpc_ofw("getprop", args, res)) { - printk(KERN_ERR "ofw: getprop call failed!\n"); - return false; - } + olpc_arch = of_get_property(root, "architecture", &propsize); return propsize == 5 && strncmp("OLPC", olpc_arch, 5) == 0; } -static u32 __init get_board_revision(void) +static u32 __init get_board_revision(struct device_node *root) { - size_t propsize; - __be32 rev; - const void *args[] = { NULL, "board-revision-int", &rev, (void *)4 }; - void *res[] = { &propsize }; - - if (olpc_ofw("getprop", args, res) || propsize != 4) { - printk(KERN_ERR "ofw: getprop call failed!\n"); - return cpu_to_be32(0); - } - return be32_to_cpu(rev); + int propsize; + const __be32 *rev; + + rev = of_get_property(root, "board-revision-int", &propsize); + if (propsize != 4) + return 0; + + return be32_to_cpu(*rev); } static bool __init platform_detect(void) { - if (!check_ofw_architecture()) + struct device_node *root = of_find_node_by_path("/"); + bool success; + + if (!root) return false; - olpc_platform_info.flags |= OLPC_F_PRESENT; - olpc_platform_info.boardrev = get_board_revision(); - return true; + + success = check_ofw_architecture(root); + if (success) { + olpc_platform_info.boardrev = get_board_revision(root); + olpc_platform_info.flags |= OLPC_F_PRESENT; + } + + of_node_put(root); + return success; } static int __init add_xo1_platform_devices(void) diff --git a/arch/x86/platform/olpc/olpc_dt.c b/arch/x86/platform/olpc/olpc_dt.c index 044bda5b317..d39f63d017d 100644 --- a/arch/x86/platform/olpc/olpc_dt.c +++ b/arch/x86/platform/olpc/olpc_dt.c @@ -19,7 +19,9 @@ #include <linux/kernel.h> #include <linux/bootmem.h> #include <linux/of.h> +#include <linux/of_platform.h> #include <linux/of_pdt.h> +#include <asm/olpc.h> #include <asm/olpc_ofw.h> static phandle __init olpc_dt_getsibling(phandle node) @@ -180,3 +182,20 @@ void __init olpc_dt_build_devicetree(void) pr_info("PROM DT: Built device tree with %u bytes of memory.\n", prom_early_allocated); } + +/* A list of DT node/bus matches that we want to expose as platform devices */ +static struct of_device_id __initdata of_ids[] = { + { .compatible = "olpc,xo1-battery" }, + { .compatible = "olpc,xo1-dcon" }, + { .compatible = "olpc,xo1-rtc" }, + {}, +}; + +static int __init olpc_create_platform_devices(void) +{ + if (machine_is_olpc()) + return of_platform_bus_probe(NULL, of_ids, NULL); + else + return 0; +} +device_initcall(olpc_create_platform_devices); diff --git a/arch/x86/platform/uv/tlb_uv.c b/arch/x86/platform/uv/tlb_uv.c index 7cb6424317f..c58e0ea39ef 100644 --- a/arch/x86/platform/uv/tlb_uv.c +++ b/arch/x86/platform/uv/tlb_uv.c @@ -699,16 +699,17 @@ const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask, struct mm_struct *mm, unsigned long va, unsigned int cpu) { - int tcpu; - int uvhub; int locals = 0; int remotes = 0; int hubs = 0; + int tcpu; + int tpnode; struct bau_desc *bau_desc; struct cpumask *flush_mask; struct ptc_stats *stat; struct bau_control *bcp; struct bau_control *tbcp; + struct hub_and_pnode *hpp; /* kernel was booted 'nobau' */ if (nobau) @@ -750,11 +751,18 @@ const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask, bau_desc += UV_ITEMS_PER_DESCRIPTOR * bcp->uvhub_cpu; bau_uvhubs_clear(&bau_desc->distribution, UV_DISTRIBUTION_SIZE); - /* cpu statistics */ for_each_cpu(tcpu, flush_mask) { - uvhub = uv_cpu_to_blade_id(tcpu); - bau_uvhub_set(uvhub, &bau_desc->distribution); - if (uvhub == bcp->uvhub) + /* + * The distribution vector is a bit map of pnodes, relative + * to the partition base pnode (and the partition base nasid + * in the header). + * Translate cpu to pnode and hub using an array stored + * in local memory. + */ + hpp = &bcp->socket_master->target_hub_and_pnode[tcpu]; + tpnode = hpp->pnode - bcp->partition_base_pnode; + bau_uvhub_set(tpnode, &bau_desc->distribution); + if (hpp->uvhub == bcp->uvhub) locals++; else remotes++; @@ -855,7 +863,7 @@ void uv_bau_message_interrupt(struct pt_regs *regs) * an interrupt, but causes an error message to be returned to * the sender. */ -static void uv_enable_timeouts(void) +static void __init uv_enable_timeouts(void) { int uvhub; int nuvhubs; @@ -1326,10 +1334,10 @@ static int __init uv_ptc_init(void) } /* - * initialize the sending side's sending buffers + * Initialize the sending side's sending buffers. */ static void -uv_activation_descriptor_init(int node, int pnode) +uv_activation_descriptor_init(int node, int pnode, int base_pnode) { int i; int cpu; @@ -1352,11 +1360,11 @@ uv_activation_descriptor_init(int node, int pnode) n = pa >> uv_nshift; m = pa & uv_mmask; + /* the 14-bit pnode */ uv_write_global_mmr64(pnode, UVH_LB_BAU_SB_DESCRIPTOR_BASE, (n << UV_DESC_BASE_PNODE_SHIFT | m)); - /* - * initializing all 8 (UV_ITEMS_PER_DESCRIPTOR) descriptors for each + * Initializing all 8 (UV_ITEMS_PER_DESCRIPTOR) descriptors for each * cpu even though we only use the first one; one descriptor can * describe a broadcast to 256 uv hubs. */ @@ -1365,12 +1373,13 @@ uv_activation_descriptor_init(int node, int pnode) memset(bd2, 0, sizeof(struct bau_desc)); bd2->header.sw_ack_flag = 1; /* - * base_dest_nodeid is the nasid of the first uvhub - * in the partition. The bit map will indicate uvhub numbers, - * which are 0-N in a partition. Pnodes are unique system-wide. + * The base_dest_nasid set in the message header is the nasid + * of the first uvhub in the partition. The bit map will + * indicate destination pnode numbers relative to that base. + * They may not be consecutive if nasid striding is being used. */ - bd2->header.base_dest_nodeid = UV_PNODE_TO_NASID(uv_partition_base_pnode); - bd2->header.dest_subnodeid = 0x10; /* the LB */ + bd2->header.base_dest_nasid = UV_PNODE_TO_NASID(base_pnode); + bd2->header.dest_subnodeid = UV_LB_SUBNODEID; bd2->header.command = UV_NET_ENDPOINT_INTD; bd2->header.int_both = 1; /* @@ -1442,7 +1451,7 @@ uv_payload_queue_init(int node, int pnode) /* * Initialization of each UV hub's structures */ -static void __init uv_init_uvhub(int uvhub, int vector) +static void __init uv_init_uvhub(int uvhub, int vector, int base_pnode) { int node; int pnode; @@ -1450,11 +1459,11 @@ static void __init uv_init_uvhub(int uvhub, int vector) node = uvhub_to_first_node(uvhub); pnode = uv_blade_to_pnode(uvhub); - uv_activation_descriptor_init(node, pnode); + uv_activation_descriptor_init(node, pnode, base_pnode); uv_payload_queue_init(node, pnode); /* - * the below initialization can't be in firmware because the - * messaging IRQ will be determined by the OS + * The below initialization can't be in firmware because the + * messaging IRQ will be determined by the OS. */ apicid = uvhub_to_first_apicid(uvhub) | uv_apicid_hibits; uv_write_global_mmr64(pnode, UVH_BAU_DATA_CONFIG, @@ -1491,10 +1500,11 @@ calculate_destination_timeout(void) /* * initialize the bau_control structure for each cpu */ -static int __init uv_init_per_cpu(int nuvhubs) +static int __init uv_init_per_cpu(int nuvhubs, int base_part_pnode) { int i; int cpu; + int tcpu; int pnode; int uvhub; int have_hmaster; @@ -1528,6 +1538,15 @@ static int __init uv_init_per_cpu(int nuvhubs) bcp = &per_cpu(bau_control, cpu); memset(bcp, 0, sizeof(struct bau_control)); pnode = uv_cpu_hub_info(cpu)->pnode; + if ((pnode - base_part_pnode) >= UV_DISTRIBUTION_SIZE) { + printk(KERN_EMERG + "cpu %d pnode %d-%d beyond %d; BAU disabled\n", + cpu, pnode, base_part_pnode, + UV_DISTRIBUTION_SIZE); + return 1; + } + bcp->osnode = cpu_to_node(cpu); + bcp->partition_base_pnode = uv_partition_base_pnode; uvhub = uv_cpu_hub_info(cpu)->numa_blade_id; *(uvhub_mask + (uvhub/8)) |= (1 << (uvhub%8)); bdp = &uvhub_descs[uvhub]; @@ -1536,7 +1555,7 @@ static int __init uv_init_per_cpu(int nuvhubs) bdp->pnode = pnode; /* kludge: 'assuming' one node per socket, and assuming that disabling a socket just leaves a gap in node numbers */ - socket = (cpu_to_node(cpu) & 1); + socket = bcp->osnode & 1; bdp->socket_mask |= (1 << socket); sdp = &bdp->socket[socket]; sdp->cpu_number[sdp->num_cpus] = cpu; @@ -1585,6 +1604,20 @@ static int __init uv_init_per_cpu(int nuvhubs) nextsocket: socket++; socket_mask = (socket_mask >> 1); + /* each socket gets a local array of pnodes/hubs */ + bcp = smaster; + bcp->target_hub_and_pnode = kmalloc_node( + sizeof(struct hub_and_pnode) * + num_possible_cpus(), GFP_KERNEL, bcp->osnode); + memset(bcp->target_hub_and_pnode, 0, + sizeof(struct hub_and_pnode) * + num_possible_cpus()); + for_each_present_cpu(tcpu) { + bcp->target_hub_and_pnode[tcpu].pnode = + uv_cpu_hub_info(tcpu)->pnode; + bcp->target_hub_and_pnode[tcpu].uvhub = + uv_cpu_hub_info(tcpu)->numa_blade_id; + } } } kfree(uvhub_descs); @@ -1637,21 +1670,22 @@ static int __init uv_bau_init(void) spin_lock_init(&disable_lock); congested_cycles = microsec_2_cycles(congested_response_us); - if (uv_init_per_cpu(nuvhubs)) { - nobau = 1; - return 0; - } - uv_partition_base_pnode = 0x7fffffff; - for (uvhub = 0; uvhub < nuvhubs; uvhub++) + for (uvhub = 0; uvhub < nuvhubs; uvhub++) { if (uv_blade_nr_possible_cpus(uvhub) && (uv_blade_to_pnode(uvhub) < uv_partition_base_pnode)) uv_partition_base_pnode = uv_blade_to_pnode(uvhub); + } + + if (uv_init_per_cpu(nuvhubs, uv_partition_base_pnode)) { + nobau = 1; + return 0; + } vector = UV_BAU_MESSAGE; for_each_possible_blade(uvhub) if (uv_blade_nr_possible_cpus(uvhub)) - uv_init_uvhub(uvhub, vector); + uv_init_uvhub(uvhub, vector, uv_partition_base_pnode); uv_enable_timeouts(); alloc_intr_gate(vector, uv_bau_message_intr1); diff --git a/arch/x86/platform/uv/uv_time.c b/arch/x86/platform/uv/uv_time.c index 9daf5d1af9f..0eb90184515 100644 --- a/arch/x86/platform/uv/uv_time.c +++ b/arch/x86/platform/uv/uv_time.c @@ -40,7 +40,6 @@ static struct clocksource clocksource_uv = { .rating = 400, .read = uv_read_rtc, .mask = (cycle_t)UVH_RTC_REAL_TIME_CLOCK_MASK, - .shift = 10, .flags = CLOCK_SOURCE_IS_CONTINUOUS, }; @@ -372,14 +371,11 @@ static __init int uv_rtc_setup_clock(void) if (!is_uv_system()) return -ENODEV; - clocksource_uv.mult = clocksource_hz2mult(sn_rtc_cycles_per_second, - clocksource_uv.shift); - /* If single blade, prefer tsc */ if (uv_num_possible_blades() == 1) clocksource_uv.rating = 250; - rc = clocksource_register(&clocksource_uv); + rc = clocksource_register_hz(&clocksource_uv, sn_rtc_cycles_per_second); if (rc) printk(KERN_INFO "UV RTC clocksource failed rc %d\n", rc); else diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index e3c6a06cf72..dd7b88f2ec7 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -235,7 +235,7 @@ static void xen_cpuid(unsigned int *ax, unsigned int *bx, *dx &= maskedx; } -static __init void xen_init_cpuid_mask(void) +static void __init xen_init_cpuid_mask(void) { unsigned int ax, bx, cx, dx; unsigned int xsave_mask; @@ -400,7 +400,7 @@ static void xen_load_gdt(const struct desc_ptr *dtr) /* * load_gdt for early boot, when the gdt is only mapped once */ -static __init void xen_load_gdt_boot(const struct desc_ptr *dtr) +static void __init xen_load_gdt_boot(const struct desc_ptr *dtr) { unsigned long va = dtr->address; unsigned int size = dtr->size + 1; @@ -662,7 +662,7 @@ static void xen_write_gdt_entry(struct desc_struct *dt, int entry, * Version of write_gdt_entry for use at early boot-time needed to * update an entry as simply as possible. */ -static __init void xen_write_gdt_entry_boot(struct desc_struct *dt, int entry, +static void __init xen_write_gdt_entry_boot(struct desc_struct *dt, int entry, const void *desc, int type) { switch (type) { @@ -933,18 +933,18 @@ static unsigned xen_patch(u8 type, u16 clobbers, void *insnbuf, return ret; } -static const struct pv_info xen_info __initdata = { +static const struct pv_info xen_info __initconst = { .paravirt_enabled = 1, .shared_kernel_pmd = 0, .name = "Xen", }; -static const struct pv_init_ops xen_init_ops __initdata = { +static const struct pv_init_ops xen_init_ops __initconst = { .patch = xen_patch, }; -static const struct pv_cpu_ops xen_cpu_ops __initdata = { +static const struct pv_cpu_ops xen_cpu_ops __initconst = { .cpuid = xen_cpuid, .set_debugreg = xen_set_debugreg, @@ -1004,7 +1004,7 @@ static const struct pv_cpu_ops xen_cpu_ops __initdata = { .end_context_switch = xen_end_context_switch, }; -static const struct pv_apic_ops xen_apic_ops __initdata = { +static const struct pv_apic_ops xen_apic_ops __initconst = { #ifdef CONFIG_X86_LOCAL_APIC .startup_ipi_hook = paravirt_nop, #endif @@ -1055,7 +1055,7 @@ int xen_panic_handler_init(void) return 0; } -static const struct machine_ops __initdata xen_machine_ops = { +static const struct machine_ops xen_machine_ops __initconst = { .restart = xen_restart, .halt = xen_machine_halt, .power_off = xen_machine_halt, @@ -1332,7 +1332,7 @@ static int __cpuinit xen_hvm_cpu_notify(struct notifier_block *self, return NOTIFY_OK; } -static struct notifier_block __cpuinitdata xen_hvm_cpu_notifier = { +static struct notifier_block xen_hvm_cpu_notifier __cpuinitdata = { .notifier_call = xen_hvm_cpu_notify, }; @@ -1381,7 +1381,7 @@ bool xen_hvm_need_lapic(void) } EXPORT_SYMBOL_GPL(xen_hvm_need_lapic); -const __refconst struct hypervisor_x86 x86_hyper_xen_hvm = { +const struct hypervisor_x86 x86_hyper_xen_hvm __refconst = { .name = "Xen HVM", .detect = xen_hvm_platform, .init_platform = xen_hvm_guest_init, diff --git a/arch/x86/xen/irq.c b/arch/x86/xen/irq.c index 6a6fe893964..8bbb465b6f0 100644 --- a/arch/x86/xen/irq.c +++ b/arch/x86/xen/irq.c @@ -113,7 +113,7 @@ static void xen_halt(void) xen_safe_halt(); } -static const struct pv_irq_ops xen_irq_ops __initdata = { +static const struct pv_irq_ops xen_irq_ops __initconst = { .save_fl = PV_CALLEE_SAVE(xen_save_fl), .restore_fl = PV_CALLEE_SAVE(xen_restore_fl), .irq_disable = PV_CALLEE_SAVE(xen_irq_disable), diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c index 55c965b38c2..02d75246037 100644 --- a/arch/x86/xen/mmu.c +++ b/arch/x86/xen/mmu.c @@ -1054,7 +1054,7 @@ void xen_mm_pin_all(void) * that's before we have page structures to store the bits. So do all * the book-keeping now. */ -static __init int xen_mark_pinned(struct mm_struct *mm, struct page *page, +static int __init xen_mark_pinned(struct mm_struct *mm, struct page *page, enum pt_level level) { SetPagePinned(page); @@ -1187,7 +1187,7 @@ static void drop_other_mm_ref(void *info) active_mm = percpu_read(cpu_tlbstate.active_mm); - if (active_mm == mm) + if (active_mm == mm && percpu_read(cpu_tlbstate.state) != TLBSTATE_OK) leave_mm(smp_processor_id()); /* If this cpu still has a stale cr3 reference, then make sure @@ -1271,13 +1271,27 @@ void xen_exit_mmap(struct mm_struct *mm) spin_unlock(&mm->page_table_lock); } -static __init void xen_pagetable_setup_start(pgd_t *base) +static void __init xen_pagetable_setup_start(pgd_t *base) { } +static __init void xen_mapping_pagetable_reserve(u64 start, u64 end) +{ + /* reserve the range used */ + native_pagetable_reserve(start, end); + + /* set as RW the rest */ + printk(KERN_DEBUG "xen: setting RW the range %llx - %llx\n", end, + PFN_PHYS(pgt_buf_top)); + while (end < PFN_PHYS(pgt_buf_top)) { + make_lowmem_page_readwrite(__va(end)); + end += PAGE_SIZE; + } +} + static void xen_post_allocator_init(void); -static __init void xen_pagetable_setup_done(pgd_t *base) +static void __init xen_pagetable_setup_done(pgd_t *base) { xen_setup_shared_info(); xen_post_allocator_init(); @@ -1463,119 +1477,6 @@ static int xen_pgd_alloc(struct mm_struct *mm) return ret; } -#ifdef CONFIG_X86_64 -static __initdata u64 __last_pgt_set_rw = 0; -static __initdata u64 __pgt_buf_start = 0; -static __initdata u64 __pgt_buf_end = 0; -static __initdata u64 __pgt_buf_top = 0; -/* - * As a consequence of the commit: - * - * commit 4b239f458c229de044d6905c2b0f9fe16ed9e01e - * Author: Yinghai Lu <yinghai@kernel.org> - * Date: Fri Dec 17 16:58:28 2010 -0800 - * - * x86-64, mm: Put early page table high - * - * at some point init_memory_mapping is going to reach the pagetable pages - * area and map those pages too (mapping them as normal memory that falls - * in the range of addresses passed to init_memory_mapping as argument). - * Some of those pages are already pagetable pages (they are in the range - * pgt_buf_start-pgt_buf_end) therefore they are going to be mapped RO and - * everything is fine. - * Some of these pages are not pagetable pages yet (they fall in the range - * pgt_buf_end-pgt_buf_top; for example the page at pgt_buf_end) so they - * are going to be mapped RW. When these pages become pagetable pages and - * are hooked into the pagetable, xen will find that the guest has already - * a RW mapping of them somewhere and fail the operation. - * The reason Xen requires pagetables to be RO is that the hypervisor needs - * to verify that the pagetables are valid before using them. The validation - * operations are called "pinning". - * - * In order to fix the issue we mark all the pages in the entire range - * pgt_buf_start-pgt_buf_top as RO, however when the pagetable allocation - * is completed only the range pgt_buf_start-pgt_buf_end is reserved by - * init_memory_mapping. Hence the kernel is going to crash as soon as one - * of the pages in the range pgt_buf_end-pgt_buf_top is reused (b/c those - * ranges are RO). - * - * For this reason, 'mark_rw_past_pgt' is introduced which is called _after_ - * the init_memory_mapping has completed (in a perfect world we would - * call this function from init_memory_mapping, but lets ignore that). - * - * Because we are called _after_ init_memory_mapping the pgt_buf_[start, - * end,top] have all changed to new values (b/c init_memory_mapping - * is called and setting up another new page-table). Hence, the first time - * we enter this function, we save away the pgt_buf_start value and update - * the pgt_buf_[end,top]. - * - * When we detect that the "old" pgt_buf_start through pgt_buf_end - * PFNs have been reserved (so memblock_x86_reserve_range has been called), - * we immediately set out to RW the "old" pgt_buf_end through pgt_buf_top. - * - * And then we update those "old" pgt_buf_[end|top] with the new ones - * so that we can redo this on the next pagetable. - */ -static __init void mark_rw_past_pgt(void) { - - if (pgt_buf_end > pgt_buf_start) { - u64 addr, size; - - /* Save it away. */ - if (!__pgt_buf_start) { - __pgt_buf_start = pgt_buf_start; - __pgt_buf_end = pgt_buf_end; - __pgt_buf_top = pgt_buf_top; - return; - } - /* If we get the range that starts at __pgt_buf_end that means - * the range is reserved, and that in 'init_memory_mapping' - * the 'memblock_x86_reserve_range' has been called with the - * outdated __pgt_buf_start, __pgt_buf_end (the "new" - * pgt_buf_[start|end|top] refer now to a new pagetable. - * Note: we are called _after_ the pgt_buf_[..] have been - * updated.*/ - - addr = memblock_x86_find_in_range_size(PFN_PHYS(__pgt_buf_start), - &size, PAGE_SIZE); - - /* Still not reserved, meaning 'memblock_x86_reserve_range' - * hasn't been called yet. Update the _end and _top.*/ - if (addr == PFN_PHYS(__pgt_buf_start)) { - __pgt_buf_end = pgt_buf_end; - __pgt_buf_top = pgt_buf_top; - return; - } - - /* OK, the area is reserved, meaning it is time for us to - * set RW for the old end->top PFNs. */ - - /* ..unless we had already done this. */ - if (__pgt_buf_end == __last_pgt_set_rw) - return; - - addr = PFN_PHYS(__pgt_buf_end); - - /* set as RW the rest */ - printk(KERN_DEBUG "xen: setting RW the range %llx - %llx\n", - PFN_PHYS(__pgt_buf_end), PFN_PHYS(__pgt_buf_top)); - - while (addr < PFN_PHYS(__pgt_buf_top)) { - make_lowmem_page_readwrite(__va(addr)); - addr += PAGE_SIZE; - } - /* And update everything so that we are ready for the next - * pagetable (the one created for regions past 4GB) */ - __last_pgt_set_rw = __pgt_buf_end; - __pgt_buf_start = pgt_buf_start; - __pgt_buf_end = pgt_buf_end; - __pgt_buf_top = pgt_buf_top; - } - return; -} -#else -static __init void mark_rw_past_pgt(void) { } -#endif static void xen_pgd_free(struct mm_struct *mm, pgd_t *pgd) { #ifdef CONFIG_X86_64 @@ -1587,7 +1488,7 @@ static void xen_pgd_free(struct mm_struct *mm, pgd_t *pgd) } #ifdef CONFIG_X86_32 -static __init pte_t mask_rw_pte(pte_t *ptep, pte_t pte) +static pte_t __init mask_rw_pte(pte_t *ptep, pte_t pte) { /* If there's an existing pte, then don't allow _PAGE_RW to be set */ if (pte_val_ma(*ptep) & _PAGE_PRESENT) @@ -1597,19 +1498,11 @@ static __init pte_t mask_rw_pte(pte_t *ptep, pte_t pte) return pte; } #else /* CONFIG_X86_64 */ -static __init pte_t mask_rw_pte(pte_t *ptep, pte_t pte) +static pte_t __init mask_rw_pte(pte_t *ptep, pte_t pte) { unsigned long pfn = pte_pfn(pte); /* - * A bit of optimization. We do not need to call the workaround - * when xen_set_pte_init is called with a PTE with 0 as PFN. - * That is b/c the pagetable at that point are just being populated - * with empty values and we can save some cycles by not calling - * the 'memblock' code.*/ - if (pfn) - mark_rw_past_pgt(); - /* * If the new pfn is within the range of the newly allocated * kernel pagetable, and it isn't being mapped into an * early_ioremap fixmap slot as a freshly allocated page, make sure @@ -1626,7 +1519,7 @@ static __init pte_t mask_rw_pte(pte_t *ptep, pte_t pte) /* Init-time set_pte while constructing initial pagetables, which doesn't allow RO pagetable pages to be remapped RW */ -static __init void xen_set_pte_init(pte_t *ptep, pte_t pte) +static void __init xen_set_pte_init(pte_t *ptep, pte_t pte) { pte = mask_rw_pte(ptep, pte); @@ -1644,7 +1537,7 @@ static void pin_pagetable_pfn(unsigned cmd, unsigned long pfn) /* Early in boot, while setting up the initial pagetable, assume everything is pinned. */ -static __init void xen_alloc_pte_init(struct mm_struct *mm, unsigned long pfn) +static void __init xen_alloc_pte_init(struct mm_struct *mm, unsigned long pfn) { #ifdef CONFIG_FLATMEM BUG_ON(mem_map); /* should only be used early */ @@ -1654,7 +1547,7 @@ static __init void xen_alloc_pte_init(struct mm_struct *mm, unsigned long pfn) } /* Used for pmd and pud */ -static __init void xen_alloc_pmd_init(struct mm_struct *mm, unsigned long pfn) +static void __init xen_alloc_pmd_init(struct mm_struct *mm, unsigned long pfn) { #ifdef CONFIG_FLATMEM BUG_ON(mem_map); /* should only be used early */ @@ -1664,13 +1557,13 @@ static __init void xen_alloc_pmd_init(struct mm_struct *mm, unsigned long pfn) /* Early release_pte assumes that all pts are pinned, since there's only init_mm and anything attached to that is pinned. */ -static __init void xen_release_pte_init(unsigned long pfn) +static void __init xen_release_pte_init(unsigned long pfn) { pin_pagetable_pfn(MMUEXT_UNPIN_TABLE, pfn); make_lowmem_page_readwrite(__va(PFN_PHYS(pfn))); } -static __init void xen_release_pmd_init(unsigned long pfn) +static void __init xen_release_pmd_init(unsigned long pfn) { make_lowmem_page_readwrite(__va(PFN_PHYS(pfn))); } @@ -1796,7 +1689,7 @@ static void set_page_prot(void *addr, pgprot_t prot) BUG(); } -static __init void xen_map_identity_early(pmd_t *pmd, unsigned long max_pfn) +static void __init xen_map_identity_early(pmd_t *pmd, unsigned long max_pfn) { unsigned pmdidx, pteidx; unsigned ident_pte; @@ -1879,7 +1772,7 @@ static void convert_pfn_mfn(void *v) * of the physical mapping once some sort of allocator has been set * up. */ -__init pgd_t *xen_setup_kernel_pagetable(pgd_t *pgd, +pgd_t * __init xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn) { pud_t *l3; @@ -1950,7 +1843,7 @@ __init pgd_t *xen_setup_kernel_pagetable(pgd_t *pgd, static RESERVE_BRK_ARRAY(pmd_t, initial_kernel_pmd, PTRS_PER_PMD); static RESERVE_BRK_ARRAY(pmd_t, swapper_kernel_pmd, PTRS_PER_PMD); -static __init void xen_write_cr3_init(unsigned long cr3) +static void __init xen_write_cr3_init(unsigned long cr3) { unsigned long pfn = PFN_DOWN(__pa(swapper_pg_dir)); @@ -1987,7 +1880,7 @@ static __init void xen_write_cr3_init(unsigned long cr3) pv_mmu_ops.write_cr3 = &xen_write_cr3; } -__init pgd_t *xen_setup_kernel_pagetable(pgd_t *pgd, +pgd_t * __init xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn) { pmd_t *kernel_pmd; @@ -2093,7 +1986,7 @@ static void xen_set_fixmap(unsigned idx, phys_addr_t phys, pgprot_t prot) #endif } -__init void xen_ident_map_ISA(void) +void __init xen_ident_map_ISA(void) { unsigned long pa; @@ -2116,10 +2009,8 @@ __init void xen_ident_map_ISA(void) xen_flush_tlb(); } -static __init void xen_post_allocator_init(void) +static void __init xen_post_allocator_init(void) { - mark_rw_past_pgt(); - #ifdef CONFIG_XEN_DEBUG pv_mmu_ops.make_pte = PV_CALLEE_SAVE(xen_make_pte_debug); #endif @@ -2155,7 +2046,7 @@ static void xen_leave_lazy_mmu(void) preempt_enable(); } -static const struct pv_mmu_ops xen_mmu_ops __initdata = { +static const struct pv_mmu_ops xen_mmu_ops __initconst = { .read_cr2 = xen_read_cr2, .write_cr2 = xen_write_cr2, @@ -2228,6 +2119,7 @@ static const struct pv_mmu_ops xen_mmu_ops __initdata = { void __init xen_init_mmu_ops(void) { + x86_init.mapping.pagetable_reserve = xen_mapping_pagetable_reserve; x86_init.paging.pagetable_setup_start = xen_pagetable_setup_start; x86_init.paging.pagetable_setup_done = xen_pagetable_setup_done; pv_mmu_ops = xen_mmu_ops; diff --git a/arch/x86/xen/p2m.c b/arch/x86/xen/p2m.c index 141eb0de8b0..58efeb9d544 100644 --- a/arch/x86/xen/p2m.c +++ b/arch/x86/xen/p2m.c @@ -522,11 +522,20 @@ static bool __init __early_alloc_p2m(unsigned long pfn) /* Boundary cross-over for the edges: */ if (idx) { unsigned long *p2m = extend_brk(PAGE_SIZE, PAGE_SIZE); + unsigned long *mid_mfn_p; p2m_init(p2m); p2m_top[topidx][mididx] = p2m; + /* For save/restore we need to MFN of the P2M saved */ + + mid_mfn_p = p2m_top_mfn_p[topidx]; + WARN(mid_mfn_p[mididx] != virt_to_mfn(p2m_missing), + "P2M_TOP_P[%d][%d] != MFN of p2m_missing!\n", + topidx, mididx); + mid_mfn_p[mididx] = virt_to_mfn(p2m); + } return idx != 0; } @@ -549,12 +558,29 @@ unsigned long __init set_phys_range_identity(unsigned long pfn_s, pfn += P2M_MID_PER_PAGE * P2M_PER_PAGE) { unsigned topidx = p2m_top_index(pfn); - if (p2m_top[topidx] == p2m_mid_missing) { - unsigned long **mid = extend_brk(PAGE_SIZE, PAGE_SIZE); + unsigned long *mid_mfn_p; + unsigned long **mid; + + mid = p2m_top[topidx]; + mid_mfn_p = p2m_top_mfn_p[topidx]; + if (mid == p2m_mid_missing) { + mid = extend_brk(PAGE_SIZE, PAGE_SIZE); p2m_mid_init(mid); p2m_top[topidx] = mid; + + BUG_ON(mid_mfn_p != p2m_mid_missing_mfn); + } + /* And the save/restore P2M tables.. */ + if (mid_mfn_p == p2m_mid_missing_mfn) { + mid_mfn_p = extend_brk(PAGE_SIZE, PAGE_SIZE); + p2m_mid_mfn_init(mid_mfn_p); + + p2m_top_mfn_p[topidx] = mid_mfn_p; + p2m_top_mfn[topidx] = virt_to_mfn(mid_mfn_p); + /* Note: we don't set mid_mfn_p[midix] here, + * look in __early_alloc_p2m */ } } @@ -650,7 +676,7 @@ static unsigned long mfn_hash(unsigned long mfn) } /* Add an MFN override for a particular page */ -int m2p_add_override(unsigned long mfn, struct page *page) +int m2p_add_override(unsigned long mfn, struct page *page, bool clear_pte) { unsigned long flags; unsigned long pfn; @@ -662,7 +688,6 @@ int m2p_add_override(unsigned long mfn, struct page *page) if (!PageHighMem(page)) { address = (unsigned long)__va(pfn << PAGE_SHIFT); ptep = lookup_address(address, &level); - if (WARN(ptep == NULL || level != PG_LEVEL_4K, "m2p_add_override: pfn %lx not mapped", pfn)) return -EINVAL; @@ -674,18 +699,17 @@ int m2p_add_override(unsigned long mfn, struct page *page) if (unlikely(!set_phys_to_machine(pfn, FOREIGN_FRAME(mfn)))) return -ENOMEM; - if (!PageHighMem(page)) + if (clear_pte && !PageHighMem(page)) /* Just zap old mapping for now */ pte_clear(&init_mm, address, ptep); - spin_lock_irqsave(&m2p_override_lock, flags); list_add(&page->lru, &m2p_overrides[mfn_hash(mfn)]); spin_unlock_irqrestore(&m2p_override_lock, flags); return 0; } - -int m2p_remove_override(struct page *page) +EXPORT_SYMBOL_GPL(m2p_add_override); +int m2p_remove_override(struct page *page, bool clear_pte) { unsigned long flags; unsigned long mfn; @@ -713,7 +737,7 @@ int m2p_remove_override(struct page *page) spin_unlock_irqrestore(&m2p_override_lock, flags); set_phys_to_machine(pfn, page->index); - if (!PageHighMem(page)) + if (clear_pte && !PageHighMem(page)) set_pte_at(&init_mm, address, ptep, pfn_pte(pfn, PAGE_KERNEL)); /* No tlb flush necessary because the caller already @@ -721,6 +745,7 @@ int m2p_remove_override(struct page *page) return 0; } +EXPORT_SYMBOL_GPL(m2p_remove_override); struct page *m2p_find_override(unsigned long mfn) { diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c index 90bac0aac3a..be1a464f6d6 100644 --- a/arch/x86/xen/setup.c +++ b/arch/x86/xen/setup.c @@ -50,7 +50,7 @@ phys_addr_t xen_extra_mem_start, xen_extra_mem_size; */ #define EXTRA_MEM_RATIO (10) -static __init void xen_add_extra_mem(unsigned long pages) +static void __init xen_add_extra_mem(unsigned long pages) { unsigned long pfn; @@ -166,7 +166,7 @@ static unsigned long __init xen_set_identity(const struct e820entry *list, if (last > end) continue; - if (entry->type == E820_RAM) { + if ((entry->type == E820_RAM) || (entry->type == E820_UNUSABLE)) { if (start > start_pci) identity += set_phys_range_identity( PFN_UP(start_pci), PFN_DOWN(start)); @@ -227,7 +227,11 @@ char * __init xen_memory_setup(void) memcpy(map_raw, map, sizeof(map)); e820.nr_map = 0; +#ifdef CONFIG_X86_32 + xen_extra_mem_start = mem_end; +#else xen_extra_mem_start = max((1ULL << 32), mem_end); +#endif for (i = 0; i < memmap.nr_entries; i++) { unsigned long long end; @@ -336,7 +340,7 @@ static void __init fiddle_vdso(void) #endif } -static __cpuinit int register_callback(unsigned type, const void *func) +static int __cpuinit register_callback(unsigned type, const void *func) { struct callback_register callback = { .type = type, diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c index 30612441ed9..41038c01de4 100644 --- a/arch/x86/xen/smp.c +++ b/arch/x86/xen/smp.c @@ -46,18 +46,17 @@ static irqreturn_t xen_call_function_interrupt(int irq, void *dev_id); static irqreturn_t xen_call_function_single_interrupt(int irq, void *dev_id); /* - * Reschedule call back. Nothing to do, - * all the work is done automatically when - * we return from the interrupt. + * Reschedule call back. */ static irqreturn_t xen_reschedule_interrupt(int irq, void *dev_id) { inc_irq_stat(irq_resched_count); + scheduler_ipi(); return IRQ_HANDLED; } -static __cpuinit void cpu_bringup(void) +static void __cpuinit cpu_bringup(void) { int cpu = smp_processor_id(); @@ -85,7 +84,7 @@ static __cpuinit void cpu_bringup(void) wmb(); /* make sure everything is out */ } -static __cpuinit void cpu_bringup_and_idle(void) +static void __cpuinit cpu_bringup_and_idle(void) { cpu_bringup(); cpu_idle(); @@ -242,7 +241,7 @@ static void __init xen_smp_prepare_cpus(unsigned int max_cpus) } } -static __cpuinit int +static int __cpuinit cpu_initialize_context(unsigned int cpu, struct task_struct *idle) { struct vcpu_guest_context *ctxt; @@ -486,7 +485,7 @@ static irqreturn_t xen_call_function_single_interrupt(int irq, void *dev_id) return IRQ_HANDLED; } -static const struct smp_ops xen_smp_ops __initdata = { +static const struct smp_ops xen_smp_ops __initconst = { .smp_prepare_boot_cpu = xen_smp_prepare_boot_cpu, .smp_prepare_cpus = xen_smp_prepare_cpus, .smp_cpus_done = xen_smp_cpus_done, diff --git a/arch/x86/xen/time.c b/arch/x86/xen/time.c index 2e2d370a47b..5158c505bef 100644 --- a/arch/x86/xen/time.c +++ b/arch/x86/xen/time.c @@ -26,8 +26,6 @@ #include "xen-ops.h" -#define XEN_SHIFT 22 - /* Xen may fire a timer up to this many ns early */ #define TIMER_SLOP 100000 #define NS_PER_TICK (1000000000LL / HZ) @@ -211,8 +209,6 @@ static struct clocksource xen_clocksource __read_mostly = { .rating = 400, .read = xen_clocksource_get_cycles, .mask = ~0, - .mult = 1<<XEN_SHIFT, /* time directly in nanoseconds */ - .shift = XEN_SHIFT, .flags = CLOCK_SOURCE_IS_CONTINUOUS, }; @@ -439,16 +435,16 @@ void xen_timer_resume(void) } } -static const struct pv_time_ops xen_time_ops __initdata = { +static const struct pv_time_ops xen_time_ops __initconst = { .sched_clock = xen_clocksource_read, }; -static __init void xen_time_init(void) +static void __init xen_time_init(void) { int cpu = smp_processor_id(); struct timespec tp; - clocksource_register(&xen_clocksource); + clocksource_register_hz(&xen_clocksource, NSEC_PER_SEC); if (HYPERVISOR_vcpu_op(VCPUOP_stop_periodic_timer, cpu, NULL) == 0) { /* Successfully turned off 100Hz tick, so we have the @@ -468,7 +464,7 @@ static __init void xen_time_init(void) xen_setup_cpu_clockevents(); } -__init void xen_init_time_ops(void) +void __init xen_init_time_ops(void) { pv_time_ops = xen_time_ops; @@ -490,7 +486,7 @@ static void xen_hvm_setup_cpu_clockevents(void) xen_setup_cpu_clockevents(); } -__init void xen_hvm_init_time_ops(void) +void __init xen_hvm_init_time_ops(void) { /* vector callback is needed otherwise we cannot receive interrupts * on cpu > 0 and at this point we don't know how many cpus are diff --git a/arch/x86/xen/xen-ops.h b/arch/x86/xen/xen-ops.h index 3112f55638c..97dfdc8757b 100644 --- a/arch/x86/xen/xen-ops.h +++ b/arch/x86/xen/xen-ops.h @@ -74,7 +74,7 @@ static inline void xen_hvm_smp_init(void) {} #ifdef CONFIG_PARAVIRT_SPINLOCKS void __init xen_init_spinlocks(void); -__cpuinit void xen_init_lock_cpu(int cpu); +void __cpuinit xen_init_lock_cpu(int cpu); void xen_uninit_lock_cpu(int cpu); #else static inline void xen_init_spinlocks(void) diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c index f0605ab2a76..471fdcc5df8 100644 --- a/block/blk-cgroup.c +++ b/block/blk-cgroup.c @@ -114,6 +114,13 @@ struct blkio_cgroup *cgroup_to_blkio_cgroup(struct cgroup *cgroup) } EXPORT_SYMBOL_GPL(cgroup_to_blkio_cgroup); +struct blkio_cgroup *task_blkio_cgroup(struct task_struct *tsk) +{ + return container_of(task_subsys_state(tsk, blkio_subsys_id), + struct blkio_cgroup, css); +} +EXPORT_SYMBOL_GPL(task_blkio_cgroup); + static inline void blkio_update_group_weight(struct blkio_group *blkg, unsigned int weight) { diff --git a/block/blk-cgroup.h b/block/blk-cgroup.h index 10919fae2d3..c774930cc20 100644 --- a/block/blk-cgroup.h +++ b/block/blk-cgroup.h @@ -291,6 +291,7 @@ static inline void blkiocg_set_start_empty_time(struct blkio_group *blkg) {} #if defined(CONFIG_BLK_CGROUP) || defined(CONFIG_BLK_CGROUP_MODULE) extern struct blkio_cgroup blkio_root_cgroup; extern struct blkio_cgroup *cgroup_to_blkio_cgroup(struct cgroup *cgroup); +extern struct blkio_cgroup *task_blkio_cgroup(struct task_struct *tsk); extern void blkiocg_add_blkio_group(struct blkio_cgroup *blkcg, struct blkio_group *blkg, void *key, dev_t dev, enum blkio_policy_id plid); @@ -314,6 +315,8 @@ void blkiocg_update_io_remove_stats(struct blkio_group *blkg, struct cgroup; static inline struct blkio_cgroup * cgroup_to_blkio_cgroup(struct cgroup *cgroup) { return NULL; } +static inline struct blkio_cgroup * +task_blkio_cgroup(struct task_struct *tsk) { return NULL; } static inline void blkiocg_add_blkio_group(struct blkio_cgroup *blkcg, struct blkio_group *blkg, void *key, dev_t dev, diff --git a/block/blk-core.c b/block/blk-core.c index a2e58eeb354..3fe00a14822 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -316,8 +316,10 @@ EXPORT_SYMBOL(__blk_run_queue); */ void blk_run_queue_async(struct request_queue *q) { - if (likely(!blk_queue_stopped(q))) + if (likely(!blk_queue_stopped(q))) { + __cancel_delayed_work(&q->delay_work); queue_delayed_work(kblockd_workqueue, &q->delay_work, 0); + } } EXPORT_SYMBOL(blk_run_queue_async); diff --git a/block/blk-throttle.c b/block/blk-throttle.c index 0475a22a420..252a81a306f 100644 --- a/block/blk-throttle.c +++ b/block/blk-throttle.c @@ -160,9 +160,8 @@ static void throtl_put_tg(struct throtl_grp *tg) } static struct throtl_grp * throtl_find_alloc_tg(struct throtl_data *td, - struct cgroup *cgroup) + struct blkio_cgroup *blkcg) { - struct blkio_cgroup *blkcg = cgroup_to_blkio_cgroup(cgroup); struct throtl_grp *tg = NULL; void *key = td; struct backing_dev_info *bdi = &td->queue->backing_dev_info; @@ -229,12 +228,12 @@ done: static struct throtl_grp * throtl_get_tg(struct throtl_data *td) { - struct cgroup *cgroup; struct throtl_grp *tg = NULL; + struct blkio_cgroup *blkcg; rcu_read_lock(); - cgroup = task_cgroup(current, blkio_subsys_id); - tg = throtl_find_alloc_tg(td, cgroup); + blkcg = task_blkio_cgroup(current); + tg = throtl_find_alloc_tg(td, blkcg); if (!tg) tg = &td->root_tg; rcu_read_unlock(); diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index 5b52011e3a4..ab7a9e6a9b1 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -1014,10 +1014,9 @@ void cfq_update_blkio_group_weight(void *key, struct blkio_group *blkg, cfqg->needs_update = true; } -static struct cfq_group * -cfq_find_alloc_cfqg(struct cfq_data *cfqd, struct cgroup *cgroup, int create) +static struct cfq_group * cfq_find_alloc_cfqg(struct cfq_data *cfqd, + struct blkio_cgroup *blkcg, int create) { - struct blkio_cgroup *blkcg = cgroup_to_blkio_cgroup(cgroup); struct cfq_group *cfqg = NULL; void *key = cfqd; int i, j; @@ -1079,12 +1078,12 @@ done: */ static struct cfq_group *cfq_get_cfqg(struct cfq_data *cfqd, int create) { - struct cgroup *cgroup; + struct blkio_cgroup *blkcg; struct cfq_group *cfqg = NULL; rcu_read_lock(); - cgroup = task_cgroup(current, blkio_subsys_id); - cfqg = cfq_find_alloc_cfqg(cfqd, cgroup, create); + blkcg = task_blkio_cgroup(current); + cfqg = cfq_find_alloc_cfqg(cfqd, blkcg, create); if (!cfqg && create) cfqg = &cfqd->root_group; rcu_read_unlock(); diff --git a/drivers/Kconfig b/drivers/Kconfig index 177c7d15693..557a469c7aa 100644 --- a/drivers/Kconfig +++ b/drivers/Kconfig @@ -119,4 +119,7 @@ source "drivers/platform/Kconfig" source "drivers/clk/Kconfig" source "drivers/hwspinlock/Kconfig" + +source "drivers/clocksource/Kconfig" + endmenu diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c index 3a73a93596e..85b32376dad 100644 --- a/drivers/acpi/processor_perflib.c +++ b/drivers/acpi/processor_perflib.c @@ -49,10 +49,6 @@ ACPI_MODULE_NAME("processor_perflib"); static DEFINE_MUTEX(performance_mutex); -/* Use cpufreq debug layer for _PPC changes. */ -#define cpufreq_printk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_CORE, \ - "cpufreq-core", msg) - /* * _PPC support is implemented as a CPUfreq policy notifier: * This means each time a CPUfreq driver registered also with @@ -145,7 +141,7 @@ static int acpi_processor_get_platform_limit(struct acpi_processor *pr) return -ENODEV; } - cpufreq_printk("CPU %d: _PPC is %d - frequency %s limited\n", pr->id, + pr_debug("CPU %d: _PPC is %d - frequency %s limited\n", pr->id, (int)ppc, ppc ? "" : "not"); pr->performance_platform_limit = (int)ppc; diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c index ad350173956..605a2954ef1 100644 --- a/drivers/acpi/processor_throttling.c +++ b/drivers/acpi/processor_throttling.c @@ -710,20 +710,14 @@ static int acpi_processor_get_throttling_fadt(struct acpi_processor *pr) } #ifdef CONFIG_X86 -static int acpi_throttling_rdmsr(struct acpi_processor *pr, - u64 *value) +static int acpi_throttling_rdmsr(u64 *value) { - struct cpuinfo_x86 *c; u64 msr_high, msr_low; - unsigned int cpu; u64 msr = 0; int ret = -1; - cpu = pr->id; - c = &cpu_data(cpu); - - if ((c->x86_vendor != X86_VENDOR_INTEL) || - !cpu_has(c, X86_FEATURE_ACPI)) { + if ((this_cpu_read(cpu_info.x86_vendor) != X86_VENDOR_INTEL) || + !this_cpu_has(X86_FEATURE_ACPI)) { printk(KERN_ERR PREFIX "HARDWARE addr space,NOT supported yet\n"); } else { @@ -738,18 +732,13 @@ static int acpi_throttling_rdmsr(struct acpi_processor *pr, return ret; } -static int acpi_throttling_wrmsr(struct acpi_processor *pr, u64 value) +static int acpi_throttling_wrmsr(u64 value) { - struct cpuinfo_x86 *c; - unsigned int cpu; int ret = -1; u64 msr; - cpu = pr->id; - c = &cpu_data(cpu); - - if ((c->x86_vendor != X86_VENDOR_INTEL) || - !cpu_has(c, X86_FEATURE_ACPI)) { + if ((this_cpu_read(cpu_info.x86_vendor) != X86_VENDOR_INTEL) || + !this_cpu_has(X86_FEATURE_ACPI)) { printk(KERN_ERR PREFIX "HARDWARE addr space,NOT supported yet\n"); } else { @@ -761,15 +750,14 @@ static int acpi_throttling_wrmsr(struct acpi_processor *pr, u64 value) return ret; } #else -static int acpi_throttling_rdmsr(struct acpi_processor *pr, - u64 *value) +static int acpi_throttling_rdmsr(u64 *value) { printk(KERN_ERR PREFIX "HARDWARE addr space,NOT supported yet\n"); return -1; } -static int acpi_throttling_wrmsr(struct acpi_processor *pr, u64 value) +static int acpi_throttling_wrmsr(u64 value) { printk(KERN_ERR PREFIX "HARDWARE addr space,NOT supported yet\n"); @@ -801,7 +789,7 @@ static int acpi_read_throttling_status(struct acpi_processor *pr, ret = 0; break; case ACPI_ADR_SPACE_FIXED_HARDWARE: - ret = acpi_throttling_rdmsr(pr, value); + ret = acpi_throttling_rdmsr(value); break; default: printk(KERN_ERR PREFIX "Unknown addr space %d\n", @@ -834,7 +822,7 @@ static int acpi_write_throttling_state(struct acpi_processor *pr, ret = 0; break; case ACPI_ADR_SPACE_FIXED_HARDWARE: - ret = acpi_throttling_wrmsr(pr, value); + ret = acpi_throttling_wrmsr(value); break; default: printk(KERN_ERR PREFIX "Unknown addr space %d\n", diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c index ff9d832a163..d38c40fe4dd 100644 --- a/drivers/ata/libahci.c +++ b/drivers/ata/libahci.c @@ -561,27 +561,6 @@ void ahci_start_engine(struct ata_port *ap) { void __iomem *port_mmio = ahci_port_base(ap); u32 tmp; - u8 status; - - status = readl(port_mmio + PORT_TFDATA) & 0xFF; - - /* - * At end of section 10.1 of AHCI spec (rev 1.3), it states - * Software shall not set PxCMD.ST to 1 until it is determined - * that a functoinal device is present on the port as determined by - * PxTFD.STS.BSY=0, PxTFD.STS.DRQ=0 and PxSSTS.DET=3h - * - * Even though most AHCI host controllers work without this check, - * specific controller will fail under this condition - */ - if (status & (ATA_BUSY | ATA_DRQ)) - return; - else { - ahci_scr_read(&ap->link, SCR_STATUS, &tmp); - - if ((tmp & 0xf) != 0x3) - return; - } /* start DMA */ tmp = readl(port_mmio + PORT_CMD); diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c index f26f2fe3480..dad9fd660f3 100644 --- a/drivers/ata/libata-eh.c +++ b/drivers/ata/libata-eh.c @@ -3316,7 +3316,7 @@ static int ata_eh_set_lpm(struct ata_link *link, enum ata_lpm_policy policy, struct ata_eh_context *ehc = &link->eh_context; struct ata_device *dev, *link_dev = NULL, *lpm_dev = NULL; enum ata_lpm_policy old_policy = link->lpm_policy; - bool no_dipm = ap->flags & ATA_FLAG_NO_DIPM; + bool no_dipm = link->ap->flags & ATA_FLAG_NO_DIPM; unsigned int hints = ATA_LPM_EMPTY | ATA_LPM_HIPM; unsigned int err_mask; int rc; diff --git a/drivers/atm/fore200e.c b/drivers/atm/fore200e.c index bdd2719f3f6..bc9e702186d 100644 --- a/drivers/atm/fore200e.c +++ b/drivers/atm/fore200e.c @@ -2643,16 +2643,19 @@ fore200e_init(struct fore200e* fore200e, struct device *parent) } #ifdef CONFIG_SBUS +static const struct of_device_id fore200e_sba_match[]; static int __devinit fore200e_sba_probe(struct platform_device *op) { + const struct of_device_id *match; const struct fore200e_bus *bus; struct fore200e *fore200e; static int index = 0; int err; - if (!op->dev.of_match) + match = of_match_device(fore200e_sba_match, &op->dev); + if (!match) return -EINVAL; - bus = op->dev.of_match->data; + bus = match->data; fore200e = kzalloc(sizeof(struct fore200e), GFP_KERNEL); if (!fore200e) diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig index e9e5238f310..d57e8d0fb82 100644 --- a/drivers/base/Kconfig +++ b/drivers/base/Kconfig @@ -168,11 +168,4 @@ config SYS_HYPERVISOR bool default n -config ARCH_NO_SYSDEV_OPS - bool - ---help--- - To be selected by architectures that don't use sysdev class or - sysdev driver power management (suspend/resume) and shutdown - operations. - endmenu diff --git a/drivers/base/base.h b/drivers/base/base.h index 19f49e41ce5..a34dca0ad04 100644 --- a/drivers/base/base.h +++ b/drivers/base/base.h @@ -111,8 +111,6 @@ static inline int driver_match_device(struct device_driver *drv, return drv->bus->match ? drv->bus->match(dev, drv) : 1; } -extern void sysdev_shutdown(void); - extern char *make_class_name(const char *name, struct kobject *kobj); extern int devres_release_all(struct device *dev); diff --git a/drivers/base/dd.c b/drivers/base/dd.c index da57ee9d63f..29917c7506c 100644 --- a/drivers/base/dd.c +++ b/drivers/base/dd.c @@ -316,8 +316,7 @@ static void __device_release_driver(struct device *dev) drv = dev->driver; if (drv) { - pm_runtime_get_noresume(dev); - pm_runtime_barrier(dev); + pm_runtime_get_sync(dev); driver_sysfs_remove(dev); @@ -326,6 +325,8 @@ static void __device_release_driver(struct device *dev) BUS_NOTIFY_UNBIND_DRIVER, dev); + pm_runtime_put_sync(dev); + if (dev->bus && dev->bus->remove) dev->bus->remove(dev); else if (drv->remove) @@ -338,7 +339,6 @@ static void __device_release_driver(struct device *dev) BUS_NOTIFY_UNBOUND_DRIVER, dev); - pm_runtime_put_sync(dev); } } diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c index 8c798ef7f13..bbb03e6f725 100644 --- a/drivers/base/firmware_class.c +++ b/drivers/base/firmware_class.c @@ -521,6 +521,11 @@ static int _request_firmware(const struct firmware **firmware_p, if (!firmware_p) return -EINVAL; + if (WARN_ON(usermodehelper_is_disabled())) { + dev_err(device, "firmware: %s will not be loaded\n", name); + return -EBUSY; + } + *firmware_p = firmware = kzalloc(sizeof(*firmware), GFP_KERNEL); if (!firmware) { dev_err(device, "%s: kmalloc(struct firmware) failed\n", diff --git a/drivers/base/platform.c b/drivers/base/platform.c index 9e0e4fc24c4..48425f18302 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -667,7 +667,7 @@ static int platform_legacy_resume(struct device *dev) return ret; } -static int platform_pm_prepare(struct device *dev) +int platform_pm_prepare(struct device *dev) { struct device_driver *drv = dev->driver; int ret = 0; @@ -678,7 +678,7 @@ static int platform_pm_prepare(struct device *dev) return ret; } -static void platform_pm_complete(struct device *dev) +void platform_pm_complete(struct device *dev) { struct device_driver *drv = dev->driver; @@ -686,16 +686,11 @@ static void platform_pm_complete(struct device *dev) drv->pm->complete(dev); } -#else /* !CONFIG_PM_SLEEP */ - -#define platform_pm_prepare NULL -#define platform_pm_complete NULL - -#endif /* !CONFIG_PM_SLEEP */ +#endif /* CONFIG_PM_SLEEP */ #ifdef CONFIG_SUSPEND -int __weak platform_pm_suspend(struct device *dev) +int platform_pm_suspend(struct device *dev) { struct device_driver *drv = dev->driver; int ret = 0; @@ -713,7 +708,7 @@ int __weak platform_pm_suspend(struct device *dev) return ret; } -int __weak platform_pm_suspend_noirq(struct device *dev) +int platform_pm_suspend_noirq(struct device *dev) { struct device_driver *drv = dev->driver; int ret = 0; @@ -729,7 +724,7 @@ int __weak platform_pm_suspend_noirq(struct device *dev) return ret; } -int __weak platform_pm_resume(struct device *dev) +int platform_pm_resume(struct device *dev) { struct device_driver *drv = dev->driver; int ret = 0; @@ -747,7 +742,7 @@ int __weak platform_pm_resume(struct device *dev) return ret; } -int __weak platform_pm_resume_noirq(struct device *dev) +int platform_pm_resume_noirq(struct device *dev) { struct device_driver *drv = dev->driver; int ret = 0; @@ -763,18 +758,11 @@ int __weak platform_pm_resume_noirq(struct device *dev) return ret; } -#else /* !CONFIG_SUSPEND */ - -#define platform_pm_suspend NULL -#define platform_pm_resume NULL -#define platform_pm_suspend_noirq NULL -#define platform_pm_resume_noirq NULL - -#endif /* !CONFIG_SUSPEND */ +#endif /* CONFIG_SUSPEND */ #ifdef CONFIG_HIBERNATE_CALLBACKS -static int platform_pm_freeze(struct device *dev) +int platform_pm_freeze(struct device *dev) { struct device_driver *drv = dev->driver; int ret = 0; @@ -792,7 +780,7 @@ static int platform_pm_freeze(struct device *dev) return ret; } -static int platform_pm_freeze_noirq(struct device *dev) +int platform_pm_freeze_noirq(struct device *dev) { struct device_driver *drv = dev->driver; int ret = 0; @@ -808,7 +796,7 @@ static int platform_pm_freeze_noirq(struct device *dev) return ret; } -static int platform_pm_thaw(struct device *dev) +int platform_pm_thaw(struct device *dev) { struct device_driver *drv = dev->driver; int ret = 0; @@ -826,7 +814,7 @@ static int platform_pm_thaw(struct device *dev) return ret; } -static int platform_pm_thaw_noirq(struct device *dev) +int platform_pm_thaw_noirq(struct device *dev) { struct device_driver *drv = dev->driver; int ret = 0; @@ -842,7 +830,7 @@ static int platform_pm_thaw_noirq(struct device *dev) return ret; } -static int platform_pm_poweroff(struct device *dev) +int platform_pm_poweroff(struct device *dev) { struct device_driver *drv = dev->driver; int ret = 0; @@ -860,7 +848,7 @@ static int platform_pm_poweroff(struct device *dev) return ret; } -static int platform_pm_poweroff_noirq(struct device *dev) +int platform_pm_poweroff_noirq(struct device *dev) { struct device_driver *drv = dev->driver; int ret = 0; @@ -876,7 +864,7 @@ static int platform_pm_poweroff_noirq(struct device *dev) return ret; } -static int platform_pm_restore(struct device *dev) +int platform_pm_restore(struct device *dev) { struct device_driver *drv = dev->driver; int ret = 0; @@ -894,7 +882,7 @@ static int platform_pm_restore(struct device *dev) return ret; } -static int platform_pm_restore_noirq(struct device *dev) +int platform_pm_restore_noirq(struct device *dev) { struct device_driver *drv = dev->driver; int ret = 0; @@ -910,62 +898,13 @@ static int platform_pm_restore_noirq(struct device *dev) return ret; } -#else /* !CONFIG_HIBERNATE_CALLBACKS */ - -#define platform_pm_freeze NULL -#define platform_pm_thaw NULL -#define platform_pm_poweroff NULL -#define platform_pm_restore NULL -#define platform_pm_freeze_noirq NULL -#define platform_pm_thaw_noirq NULL -#define platform_pm_poweroff_noirq NULL -#define platform_pm_restore_noirq NULL - -#endif /* !CONFIG_HIBERNATE_CALLBACKS */ - -#ifdef CONFIG_PM_RUNTIME - -int __weak platform_pm_runtime_suspend(struct device *dev) -{ - return pm_generic_runtime_suspend(dev); -}; - -int __weak platform_pm_runtime_resume(struct device *dev) -{ - return pm_generic_runtime_resume(dev); -}; - -int __weak platform_pm_runtime_idle(struct device *dev) -{ - return pm_generic_runtime_idle(dev); -}; - -#else /* !CONFIG_PM_RUNTIME */ - -#define platform_pm_runtime_suspend NULL -#define platform_pm_runtime_resume NULL -#define platform_pm_runtime_idle NULL - -#endif /* !CONFIG_PM_RUNTIME */ +#endif /* CONFIG_HIBERNATE_CALLBACKS */ static const struct dev_pm_ops platform_dev_pm_ops = { - .prepare = platform_pm_prepare, - .complete = platform_pm_complete, - .suspend = platform_pm_suspend, - .resume = platform_pm_resume, - .freeze = platform_pm_freeze, - .thaw = platform_pm_thaw, - .poweroff = platform_pm_poweroff, - .restore = platform_pm_restore, - .suspend_noirq = platform_pm_suspend_noirq, - .resume_noirq = platform_pm_resume_noirq, - .freeze_noirq = platform_pm_freeze_noirq, - .thaw_noirq = platform_pm_thaw_noirq, - .poweroff_noirq = platform_pm_poweroff_noirq, - .restore_noirq = platform_pm_restore_noirq, - .runtime_suspend = platform_pm_runtime_suspend, - .runtime_resume = platform_pm_runtime_resume, - .runtime_idle = platform_pm_runtime_idle, + .runtime_suspend = pm_generic_runtime_suspend, + .runtime_resume = pm_generic_runtime_resume, + .runtime_idle = pm_generic_runtime_idle, + USE_PLATFORM_PM_SLEEP_OPS }; struct bus_type platform_bus_type = { @@ -977,41 +916,6 @@ struct bus_type platform_bus_type = { }; EXPORT_SYMBOL_GPL(platform_bus_type); -/** - * platform_bus_get_pm_ops() - return pointer to busses dev_pm_ops - * - * This function can be used by platform code to get the current - * set of dev_pm_ops functions used by the platform_bus_type. - */ -const struct dev_pm_ops * __init platform_bus_get_pm_ops(void) -{ - return platform_bus_type.pm; -} - -/** - * platform_bus_set_pm_ops() - update dev_pm_ops for the platform_bus_type - * - * @pm: pointer to new dev_pm_ops struct to be used for platform_bus_type - * - * Platform code can override the dev_pm_ops methods of - * platform_bus_type by using this function. It is expected that - * platform code will first do a platform_bus_get_pm_ops(), then - * kmemdup it, then customize selected methods and pass a pointer to - * the new struct dev_pm_ops to this function. - * - * Since platform-specific code is customizing methods for *all* - * devices (not just platform-specific devices) it is expected that - * any custom overrides of these functions will keep existing behavior - * and simply extend it. For example, any customization of the - * runtime PM methods should continue to call the pm_generic_* - * functions as the default ones do in addition to the - * platform-specific behavior. - */ -void __init platform_bus_set_pm_ops(const struct dev_pm_ops *pm) -{ - platform_bus_type.pm = pm; -} - int __init platform_bus_init(void) { int error; diff --git a/drivers/base/power/Makefile b/drivers/base/power/Makefile index 118c1b92a51..3647e114d0e 100644 --- a/drivers/base/power/Makefile +++ b/drivers/base/power/Makefile @@ -3,6 +3,6 @@ obj-$(CONFIG_PM_SLEEP) += main.o wakeup.o obj-$(CONFIG_PM_RUNTIME) += runtime.o obj-$(CONFIG_PM_TRACE_RTC) += trace.o obj-$(CONFIG_PM_OPP) += opp.o +obj-$(CONFIG_HAVE_CLK) += clock_ops.o -ccflags-$(CONFIG_DEBUG_DRIVER) := -DDEBUG -ccflags-$(CONFIG_PM_VERBOSE) += -DDEBUG +ccflags-$(CONFIG_DEBUG_DRIVER) := -DDEBUG
\ No newline at end of file diff --git a/drivers/base/power/clock_ops.c b/drivers/base/power/clock_ops.c new file mode 100644 index 00000000000..c0dd09df7be --- /dev/null +++ b/drivers/base/power/clock_ops.c @@ -0,0 +1,431 @@ +/* + * drivers/base/power/clock_ops.c - Generic clock manipulation PM callbacks + * + * Copyright (c) 2011 Rafael J. Wysocki <rjw@sisk.pl>, Renesas Electronics Corp. + * + * This file is released under the GPLv2. + */ + +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/io.h> +#include <linux/pm.h> +#include <linux/pm_runtime.h> +#include <linux/clk.h> +#include <linux/slab.h> +#include <linux/err.h> + +#ifdef CONFIG_PM_RUNTIME + +struct pm_runtime_clk_data { + struct list_head clock_list; + struct mutex lock; +}; + +enum pce_status { + PCE_STATUS_NONE = 0, + PCE_STATUS_ACQUIRED, + PCE_STATUS_ENABLED, + PCE_STATUS_ERROR, +}; + +struct pm_clock_entry { + struct list_head node; + char *con_id; + struct clk *clk; + enum pce_status status; +}; + +static struct pm_runtime_clk_data *__to_prd(struct device *dev) +{ + return dev ? dev->power.subsys_data : NULL; +} + +/** + * pm_runtime_clk_add - Start using a device clock for runtime PM. + * @dev: Device whose clock is going to be used for runtime PM. + * @con_id: Connection ID of the clock. + * + * Add the clock represented by @con_id to the list of clocks used for + * the runtime PM of @dev. + */ +int pm_runtime_clk_add(struct device *dev, const char *con_id) +{ + struct pm_runtime_clk_data *prd = __to_prd(dev); + struct pm_clock_entry *ce; + + if (!prd) + return -EINVAL; + + ce = kzalloc(sizeof(*ce), GFP_KERNEL); + if (!ce) { + dev_err(dev, "Not enough memory for clock entry.\n"); + return -ENOMEM; + } + + if (con_id) { + ce->con_id = kstrdup(con_id, GFP_KERNEL); + if (!ce->con_id) { + dev_err(dev, + "Not enough memory for clock connection ID.\n"); + kfree(ce); + return -ENOMEM; + } + } + + mutex_lock(&prd->lock); + list_add_tail(&ce->node, &prd->clock_list); + mutex_unlock(&prd->lock); + return 0; +} + +/** + * __pm_runtime_clk_remove - Destroy runtime PM clock entry. + * @ce: Runtime PM clock entry to destroy. + * + * This routine must be called under the mutex protecting the runtime PM list + * of clocks corresponding the the @ce's device. + */ +static void __pm_runtime_clk_remove(struct pm_clock_entry *ce) +{ + if (!ce) + return; + + list_del(&ce->node); + + if (ce->status < PCE_STATUS_ERROR) { + if (ce->status == PCE_STATUS_ENABLED) + clk_disable(ce->clk); + + if (ce->status >= PCE_STATUS_ACQUIRED) + clk_put(ce->clk); + } + + if (ce->con_id) + kfree(ce->con_id); + + kfree(ce); +} + +/** + * pm_runtime_clk_remove - Stop using a device clock for runtime PM. + * @dev: Device whose clock should not be used for runtime PM any more. + * @con_id: Connection ID of the clock. + * + * Remove the clock represented by @con_id from the list of clocks used for + * the runtime PM of @dev. + */ +void pm_runtime_clk_remove(struct device *dev, const char *con_id) +{ + struct pm_runtime_clk_data *prd = __to_prd(dev); + struct pm_clock_entry *ce; + + if (!prd) + return; + + mutex_lock(&prd->lock); + + list_for_each_entry(ce, &prd->clock_list, node) { + if (!con_id && !ce->con_id) { + __pm_runtime_clk_remove(ce); + break; + } else if (!con_id || !ce->con_id) { + continue; + } else if (!strcmp(con_id, ce->con_id)) { + __pm_runtime_clk_remove(ce); + break; + } + } + + mutex_unlock(&prd->lock); +} + +/** + * pm_runtime_clk_init - Initialize a device's list of runtime PM clocks. + * @dev: Device to initialize the list of runtime PM clocks for. + * + * Allocate a struct pm_runtime_clk_data object, initialize its lock member and + * make the @dev's power.subsys_data field point to it. + */ +int pm_runtime_clk_init(struct device *dev) +{ + struct pm_runtime_clk_data *prd; + + prd = kzalloc(sizeof(*prd), GFP_KERNEL); + if (!prd) { + dev_err(dev, "Not enough memory fo runtime PM data.\n"); + return -ENOMEM; + } + + INIT_LIST_HEAD(&prd->clock_list); + mutex_init(&prd->lock); + dev->power.subsys_data = prd; + return 0; +} + +/** + * pm_runtime_clk_destroy - Destroy a device's list of runtime PM clocks. + * @dev: Device to destroy the list of runtime PM clocks for. + * + * Clear the @dev's power.subsys_data field, remove the list of clock entries + * from the struct pm_runtime_clk_data object pointed to by it before and free + * that object. + */ +void pm_runtime_clk_destroy(struct device *dev) +{ + struct pm_runtime_clk_data *prd = __to_prd(dev); + struct pm_clock_entry *ce, *c; + + if (!prd) + return; + + dev->power.subsys_data = NULL; + + mutex_lock(&prd->lock); + + list_for_each_entry_safe_reverse(ce, c, &prd->clock_list, node) + __pm_runtime_clk_remove(ce); + + mutex_unlock(&prd->lock); + + kfree(prd); +} + +/** + * pm_runtime_clk_acquire - Acquire a device clock. + * @dev: Device whose clock is to be acquired. + * @con_id: Connection ID of the clock. + */ +static void pm_runtime_clk_acquire(struct device *dev, + struct pm_clock_entry *ce) +{ + ce->clk = clk_get(dev, ce->con_id); + if (IS_ERR(ce->clk)) { + ce->status = PCE_STATUS_ERROR; + } else { + ce->status = PCE_STATUS_ACQUIRED; + dev_dbg(dev, "Clock %s managed by runtime PM.\n", ce->con_id); + } +} + +/** + * pm_runtime_clk_suspend - Disable clocks in a device's runtime PM clock list. + * @dev: Device to disable the clocks for. + */ +int pm_runtime_clk_suspend(struct device *dev) +{ + struct pm_runtime_clk_data *prd = __to_prd(dev); + struct pm_clock_entry *ce; + + dev_dbg(dev, "%s()\n", __func__); + + if (!prd) + return 0; + + mutex_lock(&prd->lock); + + list_for_each_entry_reverse(ce, &prd->clock_list, node) { + if (ce->status == PCE_STATUS_NONE) + pm_runtime_clk_acquire(dev, ce); + + if (ce->status < PCE_STATUS_ERROR) { + clk_disable(ce->clk); + ce->status = PCE_STATUS_ACQUIRED; + } + } + + mutex_unlock(&prd->lock); + + return 0; +} + +/** + * pm_runtime_clk_resume - Enable clocks in a device's runtime PM clock list. + * @dev: Device to enable the clocks for. + */ +int pm_runtime_clk_resume(struct device *dev) +{ + struct pm_runtime_clk_data *prd = __to_prd(dev); + struct pm_clock_entry *ce; + + dev_dbg(dev, "%s()\n", __func__); + + if (!prd) + return 0; + + mutex_lock(&prd->lock); + + list_for_each_entry(ce, &prd->clock_list, node) { + if (ce->status == PCE_STATUS_NONE) + pm_runtime_clk_acquire(dev, ce); + + if (ce->status < PCE_STATUS_ERROR) { + clk_enable(ce->clk); + ce->status = PCE_STATUS_ENABLED; + } + } + + mutex_unlock(&prd->lock); + + return 0; +} + +/** + * pm_runtime_clk_notify - Notify routine for device addition and removal. + * @nb: Notifier block object this function is a member of. + * @action: Operation being carried out by the caller. + * @data: Device the routine is being run for. + * + * For this function to work, @nb must be a member of an object of type + * struct pm_clk_notifier_block containing all of the requisite data. + * Specifically, the pwr_domain member of that object is copied to the device's + * pwr_domain field and its con_ids member is used to populate the device's list + * of runtime PM clocks, depending on @action. + * + * If the device's pwr_domain field is already populated with a value different + * from the one stored in the struct pm_clk_notifier_block object, the function + * does nothing. + */ +static int pm_runtime_clk_notify(struct notifier_block *nb, + unsigned long action, void *data) +{ + struct pm_clk_notifier_block *clknb; + struct device *dev = data; + char *con_id; + int error; + + dev_dbg(dev, "%s() %ld\n", __func__, action); + + clknb = container_of(nb, struct pm_clk_notifier_block, nb); + + switch (action) { + case BUS_NOTIFY_ADD_DEVICE: + if (dev->pwr_domain) + break; + + error = pm_runtime_clk_init(dev); + if (error) + break; + + dev->pwr_domain = clknb->pwr_domain; + if (clknb->con_ids[0]) { + for (con_id = clknb->con_ids[0]; *con_id; con_id++) + pm_runtime_clk_add(dev, con_id); + } else { + pm_runtime_clk_add(dev, NULL); + } + + break; + case BUS_NOTIFY_DEL_DEVICE: + if (dev->pwr_domain != clknb->pwr_domain) + break; + + dev->pwr_domain = NULL; + pm_runtime_clk_destroy(dev); + break; + } + + return 0; +} + +#else /* !CONFIG_PM_RUNTIME */ + +/** + * enable_clock - Enable a device clock. + * @dev: Device whose clock is to be enabled. + * @con_id: Connection ID of the clock. + */ +static void enable_clock(struct device *dev, const char *con_id) +{ + struct clk *clk; + + clk = clk_get(dev, con_id); + if (!IS_ERR(clk)) { + clk_enable(clk); + clk_put(clk); + dev_info(dev, "Runtime PM disabled, clock forced on.\n"); + } +} + +/** + * disable_clock - Disable a device clock. + * @dev: Device whose clock is to be disabled. + * @con_id: Connection ID of the clock. + */ +static void disable_clock(struct device *dev, const char *con_id) +{ + struct clk *clk; + + clk = clk_get(dev, con_id); + if (!IS_ERR(clk)) { + clk_disable(clk); + clk_put(clk); + dev_info(dev, "Runtime PM disabled, clock forced off.\n"); + } +} + +/** + * pm_runtime_clk_notify - Notify routine for device addition and removal. + * @nb: Notifier block object this function is a member of. + * @action: Operation being carried out by the caller. + * @data: Device the routine is being run for. + * + * For this function to work, @nb must be a member of an object of type + * struct pm_clk_notifier_block containing all of the requisite data. + * Specifically, the con_ids member of that object is used to enable or disable + * the device's clocks, depending on @action. + */ +static int pm_runtime_clk_notify(struct notifier_block *nb, + unsigned long action, void *data) +{ + struct pm_clk_notifier_block *clknb; + struct device *dev = data; + char *con_id; + + dev_dbg(dev, "%s() %ld\n", __func__, action); + + clknb = container_of(nb, struct pm_clk_notifier_block, nb); + + switch (action) { + case BUS_NOTIFY_ADD_DEVICE: + if (clknb->con_ids[0]) { + for (con_id = clknb->con_ids[0]; *con_id; con_id++) + enable_clock(dev, con_id); + } else { + enable_clock(dev, NULL); + } + break; + case BUS_NOTIFY_DEL_DEVICE: + if (clknb->con_ids[0]) { + for (con_id = clknb->con_ids[0]; *con_id; con_id++) + disable_clock(dev, con_id); + } else { + disable_clock(dev, NULL); + } + break; + } + + return 0; +} + +#endif /* !CONFIG_PM_RUNTIME */ + +/** + * pm_runtime_clk_add_notifier - Add bus type notifier for runtime PM clocks. + * @bus: Bus type to add the notifier to. + * @clknb: Notifier to be added to the given bus type. + * + * The nb member of @clknb is not expected to be initialized and its + * notifier_call member will be replaced with pm_runtime_clk_notify(). However, + * the remaining members of @clknb should be populated prior to calling this + * routine. + */ +void pm_runtime_clk_add_notifier(struct bus_type *bus, + struct pm_clk_notifier_block *clknb) +{ + if (!bus || !clknb) + return; + + clknb->nb.notifier_call = pm_runtime_clk_notify; + bus_register_notifier(bus, &clknb->nb); +} diff --git a/drivers/base/power/generic_ops.c b/drivers/base/power/generic_ops.c index 42f97f92562..cb3bb368681 100644 --- a/drivers/base/power/generic_ops.c +++ b/drivers/base/power/generic_ops.c @@ -74,6 +74,23 @@ EXPORT_SYMBOL_GPL(pm_generic_runtime_resume); #ifdef CONFIG_PM_SLEEP /** + * pm_generic_prepare - Generic routine preparing a device for power transition. + * @dev: Device to prepare. + * + * Prepare a device for a system-wide power transition. + */ +int pm_generic_prepare(struct device *dev) +{ + struct device_driver *drv = dev->driver; + int ret = 0; + + if (drv && drv->pm && drv->pm->prepare) + ret = drv->pm->prepare(dev); + + return ret; +} + +/** * __pm_generic_call - Generic suspend/freeze/poweroff/thaw subsystem callback. * @dev: Device to handle. * @event: PM transition of the system under way. @@ -213,16 +230,38 @@ int pm_generic_restore(struct device *dev) return __pm_generic_resume(dev, PM_EVENT_RESTORE); } EXPORT_SYMBOL_GPL(pm_generic_restore); + +/** + * pm_generic_complete - Generic routine competing a device power transition. + * @dev: Device to handle. + * + * Complete a device power transition during a system-wide power transition. + */ +void pm_generic_complete(struct device *dev) +{ + struct device_driver *drv = dev->driver; + + if (drv && drv->pm && drv->pm->complete) + drv->pm->complete(dev); + + /* + * Let runtime PM try to suspend devices that haven't been in use before + * going into the system-wide sleep state we're resuming from. + */ + pm_runtime_idle(dev); +} #endif /* CONFIG_PM_SLEEP */ struct dev_pm_ops generic_subsys_pm_ops = { #ifdef CONFIG_PM_SLEEP + .prepare = pm_generic_prepare, .suspend = pm_generic_suspend, .resume = pm_generic_resume, .freeze = pm_generic_freeze, .thaw = pm_generic_thaw, .poweroff = pm_generic_poweroff, .restore = pm_generic_restore, + .complete = pm_generic_complete, #endif #ifdef CONFIG_PM_RUNTIME .runtime_suspend = pm_generic_runtime_suspend, diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c index abe3ab709e8..aa632020774 100644 --- a/drivers/base/power/main.c +++ b/drivers/base/power/main.c @@ -426,10 +426,8 @@ static int device_resume_noirq(struct device *dev, pm_message_t state) if (dev->pwr_domain) { pm_dev_dbg(dev, state, "EARLY power domain "); - pm_noirq_op(dev, &dev->pwr_domain->ops, state); - } - - if (dev->type && dev->type->pm) { + error = pm_noirq_op(dev, &dev->pwr_domain->ops, state); + } else if (dev->type && dev->type->pm) { pm_dev_dbg(dev, state, "EARLY type "); error = pm_noirq_op(dev, dev->type->pm, state); } else if (dev->class && dev->class->pm) { @@ -517,7 +515,8 @@ static int device_resume(struct device *dev, pm_message_t state, bool async) if (dev->pwr_domain) { pm_dev_dbg(dev, state, "power domain "); - pm_op(dev, &dev->pwr_domain->ops, state); + error = pm_op(dev, &dev->pwr_domain->ops, state); + goto End; } if (dev->type && dev->type->pm) { @@ -580,11 +579,13 @@ static bool is_async(struct device *dev) * Execute the appropriate "resume" callback for all devices whose status * indicates that they are suspended. */ -static void dpm_resume(pm_message_t state) +void dpm_resume(pm_message_t state) { struct device *dev; ktime_t starttime = ktime_get(); + might_sleep(); + mutex_lock(&dpm_list_mtx); pm_transition = state; async_error = 0; @@ -629,12 +630,11 @@ static void device_complete(struct device *dev, pm_message_t state) { device_lock(dev); - if (dev->pwr_domain && dev->pwr_domain->ops.complete) { + if (dev->pwr_domain) { pm_dev_dbg(dev, state, "completing power domain "); - dev->pwr_domain->ops.complete(dev); - } - - if (dev->type && dev->type->pm) { + if (dev->pwr_domain->ops.complete) + dev->pwr_domain->ops.complete(dev); + } else if (dev->type && dev->type->pm) { pm_dev_dbg(dev, state, "completing type "); if (dev->type->pm->complete) dev->type->pm->complete(dev); @@ -658,10 +658,12 @@ static void device_complete(struct device *dev, pm_message_t state) * Execute the ->complete() callbacks for all devices whose PM status is not * DPM_ON (this allows new devices to be registered). */ -static void dpm_complete(pm_message_t state) +void dpm_complete(pm_message_t state) { struct list_head list; + might_sleep(); + INIT_LIST_HEAD(&list); mutex_lock(&dpm_list_mtx); while (!list_empty(&dpm_prepared_list)) { @@ -690,7 +692,6 @@ static void dpm_complete(pm_message_t state) */ void dpm_resume_end(pm_message_t state) { - might_sleep(); dpm_resume(state); dpm_complete(state); } @@ -732,7 +733,12 @@ static int device_suspend_noirq(struct device *dev, pm_message_t state) { int error; - if (dev->type && dev->type->pm) { + if (dev->pwr_domain) { + pm_dev_dbg(dev, state, "LATE power domain "); + error = pm_noirq_op(dev, &dev->pwr_domain->ops, state); + if (error) + return error; + } else if (dev->type && dev->type->pm) { pm_dev_dbg(dev, state, "LATE type "); error = pm_noirq_op(dev, dev->type->pm, state); if (error) @@ -749,11 +755,6 @@ static int device_suspend_noirq(struct device *dev, pm_message_t state) return error; } - if (dev->pwr_domain) { - pm_dev_dbg(dev, state, "LATE power domain "); - pm_noirq_op(dev, &dev->pwr_domain->ops, state); - } - return 0; } @@ -841,21 +842,27 @@ static int __device_suspend(struct device *dev, pm_message_t state, bool async) goto End; } + if (dev->pwr_domain) { + pm_dev_dbg(dev, state, "power domain "); + error = pm_op(dev, &dev->pwr_domain->ops, state); + goto End; + } + if (dev->type && dev->type->pm) { pm_dev_dbg(dev, state, "type "); error = pm_op(dev, dev->type->pm, state); - goto Domain; + goto End; } if (dev->class) { if (dev->class->pm) { pm_dev_dbg(dev, state, "class "); error = pm_op(dev, dev->class->pm, state); - goto Domain; + goto End; } else if (dev->class->suspend) { pm_dev_dbg(dev, state, "legacy class "); error = legacy_suspend(dev, state, dev->class->suspend); - goto Domain; + goto End; } } @@ -869,12 +876,6 @@ static int __device_suspend(struct device *dev, pm_message_t state, bool async) } } - Domain: - if (!error && dev->pwr_domain) { - pm_dev_dbg(dev, state, "power domain "); - pm_op(dev, &dev->pwr_domain->ops, state); - } - End: device_unlock(dev); complete_all(&dev->power.completion); @@ -914,11 +915,13 @@ static int device_suspend(struct device *dev) * dpm_suspend - Execute "suspend" callbacks for all non-sysdev devices. * @state: PM transition of the system being carried out. */ -static int dpm_suspend(pm_message_t state) +int dpm_suspend(pm_message_t state) { ktime_t starttime = ktime_get(); int error = 0; + might_sleep(); + mutex_lock(&dpm_list_mtx); pm_transition = state; async_error = 0; @@ -965,7 +968,14 @@ static int device_prepare(struct device *dev, pm_message_t state) device_lock(dev); - if (dev->type && dev->type->pm) { + if (dev->pwr_domain) { + pm_dev_dbg(dev, state, "preparing power domain "); + if (dev->pwr_domain->ops.prepare) + error = dev->pwr_domain->ops.prepare(dev); + suspend_report_result(dev->pwr_domain->ops.prepare, error); + if (error) + goto End; + } else if (dev->type && dev->type->pm) { pm_dev_dbg(dev, state, "preparing type "); if (dev->type->pm->prepare) error = dev->type->pm->prepare(dev); @@ -984,13 +994,6 @@ static int device_prepare(struct device *dev, pm_message_t state) if (dev->bus->pm->prepare) error = dev->bus->pm->prepare(dev); suspend_report_result(dev->bus->pm->prepare, error); - if (error) - goto End; - } - - if (dev->pwr_domain && dev->pwr_domain->ops.prepare) { - pm_dev_dbg(dev, state, "preparing power domain "); - dev->pwr_domain->ops.prepare(dev); } End: @@ -1005,10 +1008,12 @@ static int device_prepare(struct device *dev, pm_message_t state) * * Execute the ->prepare() callback(s) for all devices. */ -static int dpm_prepare(pm_message_t state) +int dpm_prepare(pm_message_t state) { int error = 0; + might_sleep(); + mutex_lock(&dpm_list_mtx); while (!list_empty(&dpm_list)) { struct device *dev = to_device(dpm_list.next); @@ -1057,7 +1062,6 @@ int dpm_suspend_start(pm_message_t state) { int error; - might_sleep(); error = dpm_prepare(state); if (!error) error = dpm_suspend(state); diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c index 3172c60d23a..0d4587b15c5 100644 --- a/drivers/base/power/runtime.c +++ b/drivers/base/power/runtime.c @@ -168,7 +168,6 @@ static int rpm_check_suspend_allowed(struct device *dev) static int rpm_idle(struct device *dev, int rpmflags) { int (*callback)(struct device *); - int (*domain_callback)(struct device *); int retval; retval = rpm_check_suspend_allowed(dev); @@ -214,7 +213,9 @@ static int rpm_idle(struct device *dev, int rpmflags) dev->power.idle_notification = true; - if (dev->type && dev->type->pm) + if (dev->pwr_domain) + callback = dev->pwr_domain->ops.runtime_idle; + else if (dev->type && dev->type->pm) callback = dev->type->pm->runtime_idle; else if (dev->class && dev->class->pm) callback = dev->class->pm->runtime_idle; @@ -223,19 +224,10 @@ static int rpm_idle(struct device *dev, int rpmflags) else callback = NULL; - if (dev->pwr_domain) - domain_callback = dev->pwr_domain->ops.runtime_idle; - else - domain_callback = NULL; - - if (callback || domain_callback) { + if (callback) { spin_unlock_irq(&dev->power.lock); - if (domain_callback) - retval = domain_callback(dev); - - if (!retval && callback) - callback(dev); + callback(dev); spin_lock_irq(&dev->power.lock); } @@ -382,7 +374,9 @@ static int rpm_suspend(struct device *dev, int rpmflags) __update_runtime_status(dev, RPM_SUSPENDING); - if (dev->type && dev->type->pm) + if (dev->pwr_domain) + callback = dev->pwr_domain->ops.runtime_suspend; + else if (dev->type && dev->type->pm) callback = dev->type->pm->runtime_suspend; else if (dev->class && dev->class->pm) callback = dev->class->pm->runtime_suspend; @@ -400,8 +394,6 @@ static int rpm_suspend(struct device *dev, int rpmflags) else pm_runtime_cancel_pending(dev); } else { - if (dev->pwr_domain) - rpm_callback(dev->pwr_domain->ops.runtime_suspend, dev); no_callback: __update_runtime_status(dev, RPM_SUSPENDED); pm_runtime_deactivate_timer(dev); @@ -582,9 +574,8 @@ static int rpm_resume(struct device *dev, int rpmflags) __update_runtime_status(dev, RPM_RESUMING); if (dev->pwr_domain) - rpm_callback(dev->pwr_domain->ops.runtime_resume, dev); - - if (dev->type && dev->type->pm) + callback = dev->pwr_domain->ops.runtime_resume; + else if (dev->type && dev->type->pm) callback = dev->type->pm->runtime_resume; else if (dev->class && dev->class->pm) callback = dev->class->pm->runtime_resume; diff --git a/drivers/base/power/sysfs.c b/drivers/base/power/sysfs.c index fff49bee781..a9f5b897961 100644 --- a/drivers/base/power/sysfs.c +++ b/drivers/base/power/sysfs.c @@ -212,8 +212,9 @@ static ssize_t autosuspend_delay_ms_store(struct device *dev, static DEVICE_ATTR(autosuspend_delay_ms, 0644, autosuspend_delay_ms_show, autosuspend_delay_ms_store); -#endif +#endif /* CONFIG_PM_RUNTIME */ +#ifdef CONFIG_PM_SLEEP static ssize_t wake_show(struct device * dev, struct device_attribute *attr, char * buf) { @@ -248,7 +249,6 @@ wake_store(struct device * dev, struct device_attribute *attr, static DEVICE_ATTR(wakeup, 0644, wake_show, wake_store); -#ifdef CONFIG_PM_SLEEP static ssize_t wakeup_count_show(struct device *dev, struct device_attribute *attr, char *buf) { diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c index abbbd33e8d8..84f7c7d5a09 100644 --- a/drivers/base/power/wakeup.c +++ b/drivers/base/power/wakeup.c @@ -110,7 +110,6 @@ void wakeup_source_add(struct wakeup_source *ws) spin_lock_irq(&events_lock); list_add_rcu(&ws->entry, &wakeup_sources); spin_unlock_irq(&events_lock); - synchronize_rcu(); } EXPORT_SYMBOL_GPL(wakeup_source_add); diff --git a/drivers/base/sys.c b/drivers/base/sys.c index acde9b5ee13..9dff77bfe1e 100644 --- a/drivers/base/sys.c +++ b/drivers/base/sys.c @@ -328,203 +328,8 @@ void sysdev_unregister(struct sys_device *sysdev) kobject_put(&sysdev->kobj); } - -#ifndef CONFIG_ARCH_NO_SYSDEV_OPS -/** - * sysdev_shutdown - Shut down all system devices. - * - * Loop over each class of system devices, and the devices in each - * of those classes. For each device, we call the shutdown method for - * each driver registered for the device - the auxiliaries, - * and the class driver. - * - * Note: The list is iterated in reverse order, so that we shut down - * child devices before we shut down their parents. The list ordering - * is guaranteed by virtue of the fact that child devices are registered - * after their parents. - */ -void sysdev_shutdown(void) -{ - struct sysdev_class *cls; - - pr_debug("Shutting Down System Devices\n"); - - mutex_lock(&sysdev_drivers_lock); - list_for_each_entry_reverse(cls, &system_kset->list, kset.kobj.entry) { - struct sys_device *sysdev; - - pr_debug("Shutting down type '%s':\n", - kobject_name(&cls->kset.kobj)); - - list_for_each_entry(sysdev, &cls->kset.list, kobj.entry) { - struct sysdev_driver *drv; - pr_debug(" %s\n", kobject_name(&sysdev->kobj)); - - /* Call auxiliary drivers first */ - list_for_each_entry(drv, &cls->drivers, entry) { - if (drv->shutdown) - drv->shutdown(sysdev); - } - - /* Now call the generic one */ - if (cls->shutdown) - cls->shutdown(sysdev); - } - } - mutex_unlock(&sysdev_drivers_lock); -} - -static void __sysdev_resume(struct sys_device *dev) -{ - struct sysdev_class *cls = dev->cls; - struct sysdev_driver *drv; - - /* First, call the class-specific one */ - if (cls->resume) - cls->resume(dev); - WARN_ONCE(!irqs_disabled(), - "Interrupts enabled after %pF\n", cls->resume); - - /* Call auxiliary drivers next. */ - list_for_each_entry(drv, &cls->drivers, entry) { - if (drv->resume) - drv->resume(dev); - WARN_ONCE(!irqs_disabled(), - "Interrupts enabled after %pF\n", drv->resume); - } -} - -/** - * sysdev_suspend - Suspend all system devices. - * @state: Power state to enter. - * - * We perform an almost identical operation as sysdev_shutdown() - * above, though calling ->suspend() instead. Interrupts are disabled - * when this called. Devices are responsible for both saving state and - * quiescing or powering down the device. - * - * This is only called by the device PM core, so we let them handle - * all synchronization. - */ -int sysdev_suspend(pm_message_t state) -{ - struct sysdev_class *cls; - struct sys_device *sysdev, *err_dev; - struct sysdev_driver *drv, *err_drv; - int ret; - - pr_debug("Checking wake-up interrupts\n"); - - /* Return error code if there are any wake-up interrupts pending */ - ret = check_wakeup_irqs(); - if (ret) - return ret; - - WARN_ONCE(!irqs_disabled(), - "Interrupts enabled while suspending system devices\n"); - - pr_debug("Suspending System Devices\n"); - - list_for_each_entry_reverse(cls, &system_kset->list, kset.kobj.entry) { - pr_debug("Suspending type '%s':\n", - kobject_name(&cls->kset.kobj)); - - list_for_each_entry(sysdev, &cls->kset.list, kobj.entry) { - pr_debug(" %s\n", kobject_name(&sysdev->kobj)); - - /* Call auxiliary drivers first */ - list_for_each_entry(drv, &cls->drivers, entry) { - if (drv->suspend) { - ret = drv->suspend(sysdev, state); - if (ret) - goto aux_driver; - } - WARN_ONCE(!irqs_disabled(), - "Interrupts enabled after %pF\n", - drv->suspend); - } - - /* Now call the generic one */ - if (cls->suspend) { - ret = cls->suspend(sysdev, state); - if (ret) - goto cls_driver; - WARN_ONCE(!irqs_disabled(), - "Interrupts enabled after %pF\n", - cls->suspend); - } - } - } - return 0; - /* resume current sysdev */ -cls_driver: - drv = NULL; - printk(KERN_ERR "Class suspend failed for %s: %d\n", - kobject_name(&sysdev->kobj), ret); - -aux_driver: - if (drv) - printk(KERN_ERR "Class driver suspend failed for %s: %d\n", - kobject_name(&sysdev->kobj), ret); - list_for_each_entry(err_drv, &cls->drivers, entry) { - if (err_drv == drv) - break; - if (err_drv->resume) - err_drv->resume(sysdev); - } - - /* resume other sysdevs in current class */ - list_for_each_entry(err_dev, &cls->kset.list, kobj.entry) { - if (err_dev == sysdev) - break; - pr_debug(" %s\n", kobject_name(&err_dev->kobj)); - __sysdev_resume(err_dev); - } - - /* resume other classes */ - list_for_each_entry_continue(cls, &system_kset->list, kset.kobj.entry) { - list_for_each_entry(err_dev, &cls->kset.list, kobj.entry) { - pr_debug(" %s\n", kobject_name(&err_dev->kobj)); - __sysdev_resume(err_dev); - } - } - return ret; -} -EXPORT_SYMBOL_GPL(sysdev_suspend); - -/** - * sysdev_resume - Bring system devices back to life. - * - * Similar to sysdev_suspend(), but we iterate the list forwards - * to guarantee that parent devices are resumed before their children. - * - * Note: Interrupts are disabled when called. - */ -int sysdev_resume(void) -{ - struct sysdev_class *cls; - - WARN_ONCE(!irqs_disabled(), - "Interrupts enabled while resuming system devices\n"); - - pr_debug("Resuming System Devices\n"); - - list_for_each_entry(cls, &system_kset->list, kset.kobj.entry) { - struct sys_device *sysdev; - - pr_debug("Resuming type '%s':\n", - kobject_name(&cls->kset.kobj)); - - list_for_each_entry(sysdev, &cls->kset.list, kobj.entry) { - pr_debug(" %s\n", kobject_name(&sysdev->kobj)); - - __sysdev_resume(sysdev); - } - } - return 0; -} -EXPORT_SYMBOL_GPL(sysdev_resume); -#endif /* CONFIG_ARCH_NO_SYSDEV_OPS */ +EXPORT_SYMBOL_GPL(sysdev_register); +EXPORT_SYMBOL_GPL(sysdev_unregister); int __init system_bus_init(void) { @@ -534,9 +339,6 @@ int __init system_bus_init(void) return 0; } -EXPORT_SYMBOL_GPL(sysdev_register); -EXPORT_SYMBOL_GPL(sysdev_unregister); - #define to_ext_attr(x) container_of(x, struct sysdev_ext_attribute, attr) ssize_t sysdev_store_ulong(struct sys_device *sysdev, diff --git a/drivers/block/DAC960.c b/drivers/block/DAC960.c index 8066d086578..e086fbbbe85 100644 --- a/drivers/block/DAC960.c +++ b/drivers/block/DAC960.c @@ -2547,7 +2547,6 @@ static bool DAC960_RegisterBlockDevice(DAC960_Controller_T *Controller) disk->major = MajorNumber; disk->first_minor = n << DAC960_MaxPartitionsBits; disk->fops = &DAC960_BlockDeviceOperations; - disk->events = DISK_EVENT_MEDIA_CHANGE; } /* Indicate the Block Device Registration completed successfully, diff --git a/drivers/block/amiflop.c b/drivers/block/amiflop.c index 456c0cc90dc..8eba86bba59 100644 --- a/drivers/block/amiflop.c +++ b/drivers/block/amiflop.c @@ -1736,7 +1736,6 @@ static int __init fd_probe_drives(void) disk->major = FLOPPY_MAJOR; disk->first_minor = drive; disk->fops = &floppy_fops; - disk->events = DISK_EVENT_MEDIA_CHANGE; sprintf(disk->disk_name, "fd%d", drive); disk->private_data = &unit[drive]; set_capacity(disk, 880*2); diff --git a/drivers/block/ataflop.c b/drivers/block/ataflop.c index c871eae1412..ede16c64ff0 100644 --- a/drivers/block/ataflop.c +++ b/drivers/block/ataflop.c @@ -1964,7 +1964,6 @@ static int __init atari_floppy_init (void) unit[i].disk->first_minor = i; sprintf(unit[i].disk->disk_name, "fd%d", i); unit[i].disk->fops = &floppy_fops; - unit[i].disk->events = DISK_EVENT_MEDIA_CHANGE; unit[i].disk->private_data = &unit[i]; unit[i].disk->queue = blk_init_queue(do_fd_request, &ataflop_lock); diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index 301d7a9a41a..db8f88586c8 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -4205,7 +4205,6 @@ static int __init floppy_init(void) disks[dr]->major = FLOPPY_MAJOR; disks[dr]->first_minor = TOMINOR(dr); disks[dr]->fops = &floppy_fops; - disks[dr]->events = DISK_EVENT_MEDIA_CHANGE; sprintf(disks[dr]->disk_name, "fd%d", dr); init_timer(&motor_off_timer[dr]); diff --git a/drivers/block/paride/pcd.c b/drivers/block/paride/pcd.c index 2f2ccf68625..8690e31d993 100644 --- a/drivers/block/paride/pcd.c +++ b/drivers/block/paride/pcd.c @@ -320,7 +320,6 @@ static void pcd_init_units(void) disk->first_minor = unit; strcpy(disk->disk_name, cd->name); /* umm... */ disk->fops = &pcd_bdops; - disk->events = DISK_EVENT_MEDIA_CHANGE; } } diff --git a/drivers/block/paride/pd.c b/drivers/block/paride/pd.c index 21dfdb77686..869e7676d46 100644 --- a/drivers/block/paride/pd.c +++ b/drivers/block/paride/pd.c @@ -837,7 +837,6 @@ static void pd_probe_drive(struct pd_unit *disk) p->fops = &pd_fops; p->major = major; p->first_minor = (disk - pd) << PD_BITS; - p->events = DISK_EVENT_MEDIA_CHANGE; disk->gd = p; p->private_data = disk; p->queue = pd_queue; diff --git a/drivers/block/paride/pf.c b/drivers/block/paride/pf.c index 7adeb1edbf4..f21b520ef41 100644 --- a/drivers/block/paride/pf.c +++ b/drivers/block/paride/pf.c @@ -294,7 +294,6 @@ static void __init pf_init_units(void) disk->first_minor = unit; strcpy(disk->disk_name, pf->name); disk->fops = &pf_fops; - disk->events = DISK_EVENT_MEDIA_CHANGE; if (!(*drives[unit])[D_PRT]) pf_drive_count++; } diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index 16dc3645291..9712fad82bc 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -92,6 +92,8 @@ struct rbd_client { struct list_head node; }; +struct rbd_req_coll; + /* * a single io request */ @@ -100,6 +102,24 @@ struct rbd_request { struct bio *bio; /* cloned bio */ struct page **pages; /* list of used pages */ u64 len; + int coll_index; + struct rbd_req_coll *coll; +}; + +struct rbd_req_status { + int done; + int rc; + u64 bytes; +}; + +/* + * a collection of requests + */ +struct rbd_req_coll { + int total; + int num_done; + struct kref kref; + struct rbd_req_status status[0]; }; struct rbd_snap { @@ -416,6 +436,17 @@ static void rbd_put_client(struct rbd_device *rbd_dev) rbd_dev->client = NULL; } +/* + * Destroy requests collection + */ +static void rbd_coll_release(struct kref *kref) +{ + struct rbd_req_coll *coll = + container_of(kref, struct rbd_req_coll, kref); + + dout("rbd_coll_release %p\n", coll); + kfree(coll); +} /* * Create a new header structure, translate header format from the on-disk @@ -590,6 +621,14 @@ static u64 rbd_get_segment(struct rbd_image_header *header, return len; } +static int rbd_get_num_segments(struct rbd_image_header *header, + u64 ofs, u64 len) +{ + u64 start_seg = ofs >> header->obj_order; + u64 end_seg = (ofs + len - 1) >> header->obj_order; + return end_seg - start_seg + 1; +} + /* * bio helpers */ @@ -735,6 +774,50 @@ static void rbd_destroy_ops(struct ceph_osd_req_op *ops) kfree(ops); } +static void rbd_coll_end_req_index(struct request *rq, + struct rbd_req_coll *coll, + int index, + int ret, u64 len) +{ + struct request_queue *q; + int min, max, i; + + dout("rbd_coll_end_req_index %p index %d ret %d len %lld\n", + coll, index, ret, len); + + if (!rq) + return; + + if (!coll) { + blk_end_request(rq, ret, len); + return; + } + + q = rq->q; + + spin_lock_irq(q->queue_lock); + coll->status[index].done = 1; + coll->status[index].rc = ret; + coll->status[index].bytes = len; + max = min = coll->num_done; + while (max < coll->total && coll->status[max].done) + max++; + + for (i = min; i<max; i++) { + __blk_end_request(rq, coll->status[i].rc, + coll->status[i].bytes); + coll->num_done++; + kref_put(&coll->kref, rbd_coll_release); + } + spin_unlock_irq(q->queue_lock); +} + +static void rbd_coll_end_req(struct rbd_request *req, + int ret, u64 len) +{ + rbd_coll_end_req_index(req->rq, req->coll, req->coll_index, ret, len); +} + /* * Send ceph osd request */ @@ -749,6 +832,8 @@ static int rbd_do_request(struct request *rq, int flags, struct ceph_osd_req_op *ops, int num_reply, + struct rbd_req_coll *coll, + int coll_index, void (*rbd_cb)(struct ceph_osd_request *req, struct ceph_msg *msg), struct ceph_osd_request **linger_req, @@ -763,12 +848,20 @@ static int rbd_do_request(struct request *rq, struct ceph_osd_request_head *reqhead; struct rbd_image_header *header = &dev->header; - ret = -ENOMEM; req_data = kzalloc(sizeof(*req_data), GFP_NOIO); - if (!req_data) - goto done; + if (!req_data) { + if (coll) + rbd_coll_end_req_index(rq, coll, coll_index, + -ENOMEM, len); + return -ENOMEM; + } - dout("rbd_do_request len=%lld ofs=%lld\n", len, ofs); + if (coll) { + req_data->coll = coll; + req_data->coll_index = coll_index; + } + + dout("rbd_do_request obj=%s ofs=%lld len=%lld\n", obj, len, ofs); down_read(&header->snap_rwsem); @@ -777,9 +870,9 @@ static int rbd_do_request(struct request *rq, ops, false, GFP_NOIO, pages, bio); - if (IS_ERR(req)) { + if (!req) { up_read(&header->snap_rwsem); - ret = PTR_ERR(req); + ret = -ENOMEM; goto done_pages; } @@ -828,7 +921,8 @@ static int rbd_do_request(struct request *rq, ret = ceph_osdc_wait_request(&dev->client->osdc, req); if (ver) *ver = le64_to_cpu(req->r_reassert_version.version); - dout("reassert_ver=%lld\n", le64_to_cpu(req->r_reassert_version.version)); + dout("reassert_ver=%lld\n", + le64_to_cpu(req->r_reassert_version.version)); ceph_osdc_put_request(req); } return ret; @@ -837,10 +931,8 @@ done_err: bio_chain_put(req_data->bio); ceph_osdc_put_request(req); done_pages: + rbd_coll_end_req(req_data, ret, len); kfree(req_data); -done: - if (rq) - blk_end_request(rq, ret, len); return ret; } @@ -874,7 +966,7 @@ static void rbd_req_cb(struct ceph_osd_request *req, struct ceph_msg *msg) bytes = req_data->len; } - blk_end_request(req_data->rq, rc, bytes); + rbd_coll_end_req(req_data, rc, bytes); if (req_data->bio) bio_chain_put(req_data->bio); @@ -934,6 +1026,7 @@ static int rbd_req_sync_op(struct rbd_device *dev, flags, ops, 2, + NULL, 0, NULL, linger_req, ver); if (ret < 0) @@ -959,7 +1052,9 @@ static int rbd_do_op(struct request *rq, u64 snapid, int opcode, int flags, int num_reply, u64 ofs, u64 len, - struct bio *bio) + struct bio *bio, + struct rbd_req_coll *coll, + int coll_index) { char *seg_name; u64 seg_ofs; @@ -995,7 +1090,10 @@ static int rbd_do_op(struct request *rq, flags, ops, num_reply, + coll, coll_index, rbd_req_cb, 0, NULL); + + rbd_destroy_ops(ops); done: kfree(seg_name); return ret; @@ -1008,13 +1106,15 @@ static int rbd_req_write(struct request *rq, struct rbd_device *rbd_dev, struct ceph_snap_context *snapc, u64 ofs, u64 len, - struct bio *bio) + struct bio *bio, + struct rbd_req_coll *coll, + int coll_index) { return rbd_do_op(rq, rbd_dev, snapc, CEPH_NOSNAP, CEPH_OSD_OP_WRITE, CEPH_OSD_FLAG_WRITE | CEPH_OSD_FLAG_ONDISK, 2, - ofs, len, bio); + ofs, len, bio, coll, coll_index); } /* @@ -1024,14 +1124,16 @@ static int rbd_req_read(struct request *rq, struct rbd_device *rbd_dev, u64 snapid, u64 ofs, u64 len, - struct bio *bio) + struct bio *bio, + struct rbd_req_coll *coll, + int coll_index) { return rbd_do_op(rq, rbd_dev, NULL, (snapid ? snapid : CEPH_NOSNAP), CEPH_OSD_OP_READ, CEPH_OSD_FLAG_READ, 2, - ofs, len, bio); + ofs, len, bio, coll, coll_index); } /* @@ -1063,7 +1165,9 @@ static int rbd_req_sync_notify_ack(struct rbd_device *dev, { struct ceph_osd_req_op *ops; struct page **pages = NULL; - int ret = rbd_create_rw_ops(&ops, 1, CEPH_OSD_OP_NOTIFY_ACK, 0); + int ret; + + ret = rbd_create_rw_ops(&ops, 1, CEPH_OSD_OP_NOTIFY_ACK, 0); if (ret < 0) return ret; @@ -1077,6 +1181,7 @@ static int rbd_req_sync_notify_ack(struct rbd_device *dev, CEPH_OSD_FLAG_READ, ops, 1, + NULL, 0, rbd_simple_req_cb, 0, NULL); rbd_destroy_ops(ops); @@ -1274,6 +1379,20 @@ static int rbd_req_sync_exec(struct rbd_device *dev, return ret; } +static struct rbd_req_coll *rbd_alloc_coll(int num_reqs) +{ + struct rbd_req_coll *coll = + kzalloc(sizeof(struct rbd_req_coll) + + sizeof(struct rbd_req_status) * num_reqs, + GFP_ATOMIC); + + if (!coll) + return NULL; + coll->total = num_reqs; + kref_init(&coll->kref); + return coll; +} + /* * block device queue callback */ @@ -1291,6 +1410,8 @@ static void rbd_rq_fn(struct request_queue *q) bool do_write; int size, op_size = 0; u64 ofs; + int num_segs, cur_seg = 0; + struct rbd_req_coll *coll; /* peek at request from block layer */ if (!rq) @@ -1321,6 +1442,14 @@ static void rbd_rq_fn(struct request_queue *q) do_write ? "write" : "read", size, blk_rq_pos(rq) * 512ULL); + num_segs = rbd_get_num_segments(&rbd_dev->header, ofs, size); + coll = rbd_alloc_coll(num_segs); + if (!coll) { + spin_lock_irq(q->queue_lock); + __blk_end_request_all(rq, -ENOMEM); + goto next; + } + do { /* a bio clone to be passed down to OSD req */ dout("rq->bio->bi_vcnt=%d\n", rq->bio->bi_vcnt); @@ -1328,35 +1457,41 @@ static void rbd_rq_fn(struct request_queue *q) rbd_dev->header.block_name, ofs, size, NULL, NULL); + kref_get(&coll->kref); bio = bio_chain_clone(&rq_bio, &next_bio, &bp, op_size, GFP_ATOMIC); if (!bio) { - spin_lock_irq(q->queue_lock); - __blk_end_request_all(rq, -ENOMEM); - goto next; + rbd_coll_end_req_index(rq, coll, cur_seg, + -ENOMEM, op_size); + goto next_seg; } + /* init OSD command: write or read */ if (do_write) rbd_req_write(rq, rbd_dev, rbd_dev->header.snapc, ofs, - op_size, bio); + op_size, bio, + coll, cur_seg); else rbd_req_read(rq, rbd_dev, cur_snap_id(rbd_dev), ofs, - op_size, bio); + op_size, bio, + coll, cur_seg); +next_seg: size -= op_size; ofs += op_size; + cur_seg++; rq_bio = next_bio; } while (size > 0); + kref_put(&coll->kref, rbd_coll_release); if (bp) bio_pair_release(bp); - spin_lock_irq(q->queue_lock); next: rq = blk_fetch_request(q); diff --git a/drivers/block/swim.c b/drivers/block/swim.c index 24a482f2fbd..fd5adcd5594 100644 --- a/drivers/block/swim.c +++ b/drivers/block/swim.c @@ -858,7 +858,6 @@ static int __devinit swim_floppy_init(struct swim_priv *swd) swd->unit[drive].disk->first_minor = drive; sprintf(swd->unit[drive].disk->disk_name, "fd%d", drive); swd->unit[drive].disk->fops = &floppy_fops; - swd->unit[drive].disk->events = DISK_EVENT_MEDIA_CHANGE; swd->unit[drive].disk->private_data = &swd->unit[drive]; swd->unit[drive].disk->queue = swd->queue; set_capacity(swd->unit[drive].disk, 2880); diff --git a/drivers/block/swim3.c b/drivers/block/swim3.c index 4c10f56facb..773bfa79277 100644 --- a/drivers/block/swim3.c +++ b/drivers/block/swim3.c @@ -1163,7 +1163,6 @@ static int __devinit swim3_attach(struct macio_dev *mdev, const struct of_device disk->major = FLOPPY_MAJOR; disk->first_minor = i; disk->fops = &floppy_fops; - disk->events = DISK_EVENT_MEDIA_CHANGE; disk->private_data = &floppy_states[i]; disk->queue = swim3_queue; disk->flags |= GENHD_FL_REMOVABLE; diff --git a/drivers/block/ub.c b/drivers/block/ub.c index 68b9430c7cf..0e376d46bdd 100644 --- a/drivers/block/ub.c +++ b/drivers/block/ub.c @@ -2334,7 +2334,6 @@ static int ub_probe_lun(struct ub_dev *sc, int lnum) disk->major = UB_MAJOR; disk->first_minor = lun->id * UB_PARTS_PER_LUN; disk->fops = &ub_bd_fops; - disk->events = DISK_EVENT_MEDIA_CHANGE; disk->private_data = lun; disk->driverfs_dev = &sc->intf->dev; diff --git a/drivers/block/xsysace.c b/drivers/block/xsysace.c index 645ff765cd1..6c7fd7db6df 100644 --- a/drivers/block/xsysace.c +++ b/drivers/block/xsysace.c @@ -1005,7 +1005,6 @@ static int __devinit ace_setup(struct ace_device *ace) ace->gd->major = ace_major; ace->gd->first_minor = ace->id * ACE_NUM_MINORS; ace->gd->fops = &ace_fops; - ace->gd->events = DISK_EVENT_MEDIA_CHANGE; ace->gd->queue = ace->queue; ace->gd->private_data = ace; snprintf(ace->gd->disk_name, 32, "xs%c", ace->id + 'a'); diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c index 514dd8efaf7..75fb965b8f7 100644 --- a/drivers/cdrom/cdrom.c +++ b/drivers/cdrom/cdrom.c @@ -986,6 +986,9 @@ int cdrom_open(struct cdrom_device_info *cdi, struct block_device *bdev, fmode_t cdinfo(CD_OPEN, "entering cdrom_open\n"); + /* open is event synchronization point, check events first */ + check_disk_change(bdev); + /* if this was a O_NONBLOCK open and we should honor the flags, * do a quick open without drive/disc integrity checks. */ cdi->use_count++; @@ -1012,9 +1015,6 @@ int cdrom_open(struct cdrom_device_info *cdi, struct block_device *bdev, fmode_t cdinfo(CD_OPEN, "Use count for \"/dev/%s\" now %d\n", cdi->name, cdi->use_count); - /* Do this on open. Don't wait for mount, because they might - not be mounting, but opening with O_NONBLOCK */ - check_disk_change(bdev); return 0; err_release: if (CDROM_CAN(CDC_LOCK) && cdi->options & CDO_LOCK) { diff --git a/drivers/cdrom/gdrom.c b/drivers/cdrom/gdrom.c index b2b034fea34..3ceaf006e7f 100644 --- a/drivers/cdrom/gdrom.c +++ b/drivers/cdrom/gdrom.c @@ -803,7 +803,6 @@ static int __devinit probe_gdrom(struct platform_device *devptr) goto probe_fail_cdrom_register; } gd.disk->fops = &gdrom_bdops; - gd.disk->events = DISK_EVENT_MEDIA_CHANGE; /* latch on to the interrupt */ err = gdrom_set_interrupt_handlers(); if (err) diff --git a/drivers/cdrom/viocd.c b/drivers/cdrom/viocd.c index 4e874c5fa60..e427fbe4599 100644 --- a/drivers/cdrom/viocd.c +++ b/drivers/cdrom/viocd.c @@ -626,7 +626,6 @@ static int viocd_probe(struct vio_dev *vdev, const struct vio_device_id *id) gendisk->queue = q; gendisk->fops = &viocd_fops; gendisk->flags = GENHD_FL_CD|GENHD_FL_REMOVABLE; - gendisk->events = DISK_EVENT_MEDIA_CHANGE; set_capacity(gendisk, 0); gendisk->private_data = d; d->viocd_disk = gendisk; diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c index 7066e801b9d..051474c65b7 100644 --- a/drivers/char/hpet.c +++ b/drivers/char/hpet.c @@ -84,8 +84,6 @@ static struct clocksource clocksource_hpet = { .rating = 250, .read = read_hpet, .mask = CLOCKSOURCE_MASK(64), - .mult = 0, /* to be calculated */ - .shift = 10, .flags = CLOCK_SOURCE_IS_CONTINUOUS, }; static struct clocksource *hpet_clocksource; @@ -934,9 +932,7 @@ int hpet_alloc(struct hpet_data *hdp) if (!hpet_clocksource) { hpet_mctr = (void __iomem *)&hpetp->hp_hpet->hpet_mc; CLKSRC_FSYS_MMIO_SET(clocksource_hpet.fsys_mmio, hpet_mctr); - clocksource_hpet.mult = clocksource_hz2mult(hpetp->hp_tick_freq, - clocksource_hpet.shift); - clocksource_register(&clocksource_hpet); + clocksource_register_hz(&clocksource_hpet, hpetp->hp_tick_freq); hpetp->hp_clocksource = &clocksource_hpet; hpet_clocksource = &clocksource_hpet; } diff --git a/drivers/char/hw_random/n2-drv.c b/drivers/char/hw_random/n2-drv.c index 43ac61978d8..ac6739e085e 100644 --- a/drivers/char/hw_random/n2-drv.c +++ b/drivers/char/hw_random/n2-drv.c @@ -619,15 +619,18 @@ static void __devinit n2rng_driver_version(void) pr_info("%s", version); } +static const struct of_device_id n2rng_match[]; static int __devinit n2rng_probe(struct platform_device *op) { + const struct of_device_id *match; int victoria_falls; int err = -ENOMEM; struct n2rng *np; - if (!op->dev.of_match) + match = of_match_device(n2rng_match, &op->dev); + if (!match) return -EINVAL; - victoria_falls = (op->dev.of_match->data != NULL); + victoria_falls = (match->data != NULL); n2rng_driver_version(); np = kzalloc(sizeof(*np), GFP_KERNEL); diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c index cc6c9b2546a..64c6b853061 100644 --- a/drivers/char/ipmi/ipmi_si_intf.c +++ b/drivers/char/ipmi/ipmi_si_intf.c @@ -2554,9 +2554,11 @@ static struct pci_driver ipmi_pci_driver = { }; #endif /* CONFIG_PCI */ +static struct of_device_id ipmi_match[]; static int __devinit ipmi_probe(struct platform_device *dev) { #ifdef CONFIG_OF + const struct of_device_id *match; struct smi_info *info; struct resource resource; const __be32 *regsize, *regspacing, *regshift; @@ -2566,7 +2568,8 @@ static int __devinit ipmi_probe(struct platform_device *dev) dev_info(&dev->dev, "probing via device tree\n"); - if (!dev->dev.of_match) + match = of_match_device(ipmi_match, &dev->dev); + if (!match) return -EINVAL; ret = of_address_to_resource(np, 0, &resource); @@ -2601,7 +2604,7 @@ static int __devinit ipmi_probe(struct platform_device *dev) return -ENOMEM; } - info->si_type = (enum si_type) dev->dev.of_match->data; + info->si_type = (enum si_type) match->data; info->addr_source = SI_DEVICETREE; info->irq_setup = std_irq_setup; diff --git a/drivers/char/xilinx_hwicap/xilinx_hwicap.c b/drivers/char/xilinx_hwicap/xilinx_hwicap.c index d6412c16385..39ccdeada79 100644 --- a/drivers/char/xilinx_hwicap/xilinx_hwicap.c +++ b/drivers/char/xilinx_hwicap/xilinx_hwicap.c @@ -715,13 +715,13 @@ static int __devexit hwicap_remove(struct device *dev) } #ifdef CONFIG_OF -static int __devinit hwicap_of_probe(struct platform_device *op) +static int __devinit hwicap_of_probe(struct platform_device *op, + const struct hwicap_driver_config *config) { struct resource res; const unsigned int *id; const char *family; int rc; - const struct hwicap_driver_config *config = op->dev.of_match->data; const struct config_registers *regs; @@ -751,20 +751,24 @@ static int __devinit hwicap_of_probe(struct platform_device *op) regs); } #else -static inline int hwicap_of_probe(struct platform_device *op) +static inline int hwicap_of_probe(struct platform_device *op, + const struct hwicap_driver_config *config) { return -EINVAL; } #endif /* CONFIG_OF */ +static const struct of_device_id __devinitconst hwicap_of_match[]; static int __devinit hwicap_drv_probe(struct platform_device *pdev) { + const struct of_device_id *match; struct resource *res; const struct config_registers *regs; const char *family; - if (pdev->dev.of_match) - return hwicap_of_probe(pdev); + match = of_match_device(hwicap_of_match, &pdev->dev); + if (match) + return hwicap_of_probe(pdev, match->data); res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig new file mode 100644 index 00000000000..110aeeb52f9 --- /dev/null +++ b/drivers/clocksource/Kconfig @@ -0,0 +1,2 @@ +config CLKSRC_I8253 + bool diff --git a/drivers/clocksource/Makefile b/drivers/clocksource/Makefile index be61ece6330..cfb6383b543 100644 --- a/drivers/clocksource/Makefile +++ b/drivers/clocksource/Makefile @@ -6,3 +6,4 @@ obj-$(CONFIG_CS5535_CLOCK_EVENT_SRC) += cs5535-clockevt.o obj-$(CONFIG_SH_TIMER_CMT) += sh_cmt.o obj-$(CONFIG_SH_TIMER_MTU2) += sh_mtu2.o obj-$(CONFIG_SH_TIMER_TMU) += sh_tmu.o +obj-$(CONFIG_CLKSRC_I8253) += i8253.o diff --git a/drivers/clocksource/cyclone.c b/drivers/clocksource/cyclone.c index 64e528e8bfa..72f811f73e9 100644 --- a/drivers/clocksource/cyclone.c +++ b/drivers/clocksource/cyclone.c @@ -29,8 +29,6 @@ static struct clocksource clocksource_cyclone = { .rating = 250, .read = read_cyclone, .mask = CYCLONE_TIMER_MASK, - .mult = 10, - .shift = 0, .flags = CLOCK_SOURCE_IS_CONTINUOUS, }; @@ -108,12 +106,8 @@ static int __init init_cyclone_clocksource(void) } cyclone_ptr = cyclone_timer; - /* sort out mult/shift values: */ - clocksource_cyclone.shift = 22; - clocksource_cyclone.mult = clocksource_hz2mult(CYCLONE_TIMER_FREQ, - clocksource_cyclone.shift); - - return clocksource_register(&clocksource_cyclone); + return clocksource_register_hz(&clocksource_cyclone, + CYCLONE_TIMER_FREQ); } arch_initcall(init_cyclone_clocksource); diff --git a/drivers/clocksource/i8253.c b/drivers/clocksource/i8253.c new file mode 100644 index 00000000000..225c1761b37 --- /dev/null +++ b/drivers/clocksource/i8253.c @@ -0,0 +1,88 @@ +/* + * i8253 PIT clocksource + */ +#include <linux/clocksource.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/spinlock.h> +#include <linux/timex.h> + +#include <asm/i8253.h> + +/* + * Since the PIT overflows every tick, its not very useful + * to just read by itself. So use jiffies to emulate a free + * running counter: + */ +static cycle_t i8253_read(struct clocksource *cs) +{ + static int old_count; + static u32 old_jifs; + unsigned long flags; + int count; + u32 jifs; + + raw_spin_lock_irqsave(&i8253_lock, flags); + /* + * Although our caller may have the read side of xtime_lock, + * this is now a seqlock, and we are cheating in this routine + * by having side effects on state that we cannot undo if + * there is a collision on the seqlock and our caller has to + * retry. (Namely, old_jifs and old_count.) So we must treat + * jiffies as volatile despite the lock. We read jiffies + * before latching the timer count to guarantee that although + * the jiffies value might be older than the count (that is, + * the counter may underflow between the last point where + * jiffies was incremented and the point where we latch the + * count), it cannot be newer. + */ + jifs = jiffies; + outb_pit(0x00, PIT_MODE); /* latch the count ASAP */ + count = inb_pit(PIT_CH0); /* read the latched count */ + count |= inb_pit(PIT_CH0) << 8; + + /* VIA686a test code... reset the latch if count > max + 1 */ + if (count > LATCH) { + outb_pit(0x34, PIT_MODE); + outb_pit(PIT_LATCH & 0xff, PIT_CH0); + outb_pit(PIT_LATCH >> 8, PIT_CH0); + count = PIT_LATCH - 1; + } + + /* + * It's possible for count to appear to go the wrong way for a + * couple of reasons: + * + * 1. The timer counter underflows, but we haven't handled the + * resulting interrupt and incremented jiffies yet. + * 2. Hardware problem with the timer, not giving us continuous time, + * the counter does small "jumps" upwards on some Pentium systems, + * (see c't 95/10 page 335 for Neptun bug.) + * + * Previous attempts to handle these cases intelligently were + * buggy, so we just do the simple thing now. + */ + if (count > old_count && jifs == old_jifs) + count = old_count; + + old_count = count; + old_jifs = jifs; + + raw_spin_unlock_irqrestore(&i8253_lock, flags); + + count = (PIT_LATCH - 1) - count; + + return (cycle_t)(jifs * PIT_LATCH) + count; +} + +static struct clocksource i8253_cs = { + .name = "pit", + .rating = 110, + .read = i8253_read, + .mask = CLOCKSOURCE_MASK(32), +}; + +int __init clocksource_i8253_init(void) +{ + return clocksource_register_hz(&i8253_cs, PIT_TICK_RATE); +} diff --git a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig index ca8ee8093d6..9fb84853d8e 100644 --- a/drivers/cpufreq/Kconfig +++ b/drivers/cpufreq/Kconfig @@ -1,3 +1,5 @@ +menu "CPU Frequency scaling" + config CPU_FREQ bool "CPU Frequency scaling" help @@ -18,19 +20,6 @@ if CPU_FREQ config CPU_FREQ_TABLE tristate -config CPU_FREQ_DEBUG - bool "Enable CPUfreq debugging" - help - Say Y here to enable CPUfreq subsystem (including drivers) - debugging. You will need to activate it via the kernel - command line by passing - cpufreq.debug=<value> - - To get <value>, add - 1 to activate CPUfreq core debugging, - 2 to activate CPUfreq drivers debugging, and - 4 to activate CPUfreq governor debugging - config CPU_FREQ_STAT tristate "CPU frequency translation statistics" select CPU_FREQ_TABLE @@ -190,4 +179,10 @@ config CPU_FREQ_GOV_CONSERVATIVE If in doubt, say N. -endif # CPU_FREQ +menu "x86 CPU frequency scaling drivers" +depends on X86 +source "drivers/cpufreq/Kconfig.x86" +endmenu + +endif +endmenu diff --git a/arch/x86/kernel/cpu/cpufreq/Kconfig b/drivers/cpufreq/Kconfig.x86 index 870e6cc6ad2..78ff7ee4895 100644 --- a/arch/x86/kernel/cpu/cpufreq/Kconfig +++ b/drivers/cpufreq/Kconfig.x86 @@ -1,15 +1,7 @@ # -# CPU Frequency scaling +# x86 CPU Frequency scaling drivers # -menu "CPU Frequency scaling" - -source "drivers/cpufreq/Kconfig" - -if CPU_FREQ - -comment "CPUFreq processor drivers" - config X86_PCC_CPUFREQ tristate "Processor Clocking Control interface driver" depends on ACPI && ACPI_PROCESSOR @@ -43,7 +35,7 @@ config X86_ACPI_CPUFREQ config ELAN_CPUFREQ tristate "AMD Elan SC400 and SC410" select CPU_FREQ_TABLE - depends on X86_ELAN + depends on MELAN ---help--- This adds the CPUFreq driver for AMD Elan SC400 and SC410 processors. @@ -59,7 +51,7 @@ config ELAN_CPUFREQ config SC520_CPUFREQ tristate "AMD Elan SC520" select CPU_FREQ_TABLE - depends on X86_ELAN + depends on MELAN ---help--- This adds the CPUFreq driver for AMD Elan SC520 processor. @@ -261,6 +253,3 @@ config X86_SPEEDSTEP_RELAXED_CAP_CHECK option lets the probing code bypass some of those checks if the parameter "relaxed_check=1" is passed to the module. -endif # CPU_FREQ - -endmenu diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile index 71fc3b4173f..c7f1a6f16b6 100644 --- a/drivers/cpufreq/Makefile +++ b/drivers/cpufreq/Makefile @@ -13,3 +13,29 @@ obj-$(CONFIG_CPU_FREQ_GOV_CONSERVATIVE) += cpufreq_conservative.o # CPUfreq cross-arch helpers obj-$(CONFIG_CPU_FREQ_TABLE) += freq_table.o +##################################################################################d +# x86 drivers. +# Link order matters. K8 is preferred to ACPI because of firmware bugs in early +# K8 systems. ACPI is preferred to all other hardware-specific drivers. +# speedstep-* is preferred over p4-clockmod. + +obj-$(CONFIG_X86_POWERNOW_K8) += powernow-k8.o mperf.o +obj-$(CONFIG_X86_ACPI_CPUFREQ) += acpi-cpufreq.o mperf.o +obj-$(CONFIG_X86_PCC_CPUFREQ) += pcc-cpufreq.o +obj-$(CONFIG_X86_POWERNOW_K6) += powernow-k6.o +obj-$(CONFIG_X86_POWERNOW_K7) += powernow-k7.o +obj-$(CONFIG_X86_LONGHAUL) += longhaul.o +obj-$(CONFIG_X86_E_POWERSAVER) += e_powersaver.o +obj-$(CONFIG_ELAN_CPUFREQ) += elanfreq.o +obj-$(CONFIG_SC520_CPUFREQ) += sc520_freq.o +obj-$(CONFIG_X86_LONGRUN) += longrun.o +obj-$(CONFIG_X86_GX_SUSPMOD) += gx-suspmod.o +obj-$(CONFIG_X86_SPEEDSTEP_ICH) += speedstep-ich.o +obj-$(CONFIG_X86_SPEEDSTEP_LIB) += speedstep-lib.o +obj-$(CONFIG_X86_SPEEDSTEP_SMI) += speedstep-smi.o +obj-$(CONFIG_X86_SPEEDSTEP_CENTRINO) += speedstep-centrino.o +obj-$(CONFIG_X86_P4_CLOCKMOD) += p4-clockmod.o +obj-$(CONFIG_X86_CPUFREQ_NFORCE2) += cpufreq-nforce2.o + +##################################################################################d + diff --git a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c index a2baafb2fe6..4e04e127438 100644 --- a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c +++ b/drivers/cpufreq/acpi-cpufreq.c @@ -47,9 +47,6 @@ #include <asm/cpufeature.h> #include "mperf.h" -#define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, \ - "acpi-cpufreq", msg) - MODULE_AUTHOR("Paul Diefenbaugh, Dominik Brodowski"); MODULE_DESCRIPTION("ACPI Processor P-States Driver"); MODULE_LICENSE("GPL"); @@ -233,7 +230,7 @@ static u32 get_cur_val(const struct cpumask *mask) cmd.mask = mask; drv_read(&cmd); - dprintk("get_cur_val = %u\n", cmd.val); + pr_debug("get_cur_val = %u\n", cmd.val); return cmd.val; } @@ -244,7 +241,7 @@ static unsigned int get_cur_freq_on_cpu(unsigned int cpu) unsigned int freq; unsigned int cached_freq; - dprintk("get_cur_freq_on_cpu (%d)\n", cpu); + pr_debug("get_cur_freq_on_cpu (%d)\n", cpu); if (unlikely(data == NULL || data->acpi_data == NULL || data->freq_table == NULL)) { @@ -261,7 +258,7 @@ static unsigned int get_cur_freq_on_cpu(unsigned int cpu) data->resume = 1; } - dprintk("cur freq = %u\n", freq); + pr_debug("cur freq = %u\n", freq); return freq; } @@ -293,7 +290,7 @@ static int acpi_cpufreq_target(struct cpufreq_policy *policy, unsigned int i; int result = 0; - dprintk("acpi_cpufreq_target %d (%d)\n", target_freq, policy->cpu); + pr_debug("acpi_cpufreq_target %d (%d)\n", target_freq, policy->cpu); if (unlikely(data == NULL || data->acpi_data == NULL || data->freq_table == NULL)) { @@ -313,11 +310,11 @@ static int acpi_cpufreq_target(struct cpufreq_policy *policy, next_perf_state = data->freq_table[next_state].index; if (perf->state == next_perf_state) { if (unlikely(data->resume)) { - dprintk("Called after resume, resetting to P%d\n", + pr_debug("Called after resume, resetting to P%d\n", next_perf_state); data->resume = 0; } else { - dprintk("Already at target state (P%d)\n", + pr_debug("Already at target state (P%d)\n", next_perf_state); goto out; } @@ -357,7 +354,7 @@ static int acpi_cpufreq_target(struct cpufreq_policy *policy, if (acpi_pstate_strict) { if (!check_freqs(cmd.mask, freqs.new, data)) { - dprintk("acpi_cpufreq_target failed (%d)\n", + pr_debug("acpi_cpufreq_target failed (%d)\n", policy->cpu); result = -EAGAIN; goto out; @@ -378,7 +375,7 @@ static int acpi_cpufreq_verify(struct cpufreq_policy *policy) { struct acpi_cpufreq_data *data = per_cpu(acfreq_data, policy->cpu); - dprintk("acpi_cpufreq_verify\n"); + pr_debug("acpi_cpufreq_verify\n"); return cpufreq_frequency_table_verify(policy, data->freq_table); } @@ -433,11 +430,11 @@ static void free_acpi_perf_data(void) static int __init acpi_cpufreq_early_init(void) { unsigned int i; - dprintk("acpi_cpufreq_early_init\n"); + pr_debug("acpi_cpufreq_early_init\n"); acpi_perf_data = alloc_percpu(struct acpi_processor_performance); if (!acpi_perf_data) { - dprintk("Memory allocation error for acpi_perf_data.\n"); + pr_debug("Memory allocation error for acpi_perf_data.\n"); return -ENOMEM; } for_each_possible_cpu(i) { @@ -519,7 +516,7 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy) static int blacklisted; #endif - dprintk("acpi_cpufreq_cpu_init\n"); + pr_debug("acpi_cpufreq_cpu_init\n"); #ifdef CONFIG_SMP if (blacklisted) @@ -566,7 +563,7 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy) /* capability check */ if (perf->state_count <= 1) { - dprintk("No P-States\n"); + pr_debug("No P-States\n"); result = -ENODEV; goto err_unreg; } @@ -578,11 +575,11 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy) switch (perf->control_register.space_id) { case ACPI_ADR_SPACE_SYSTEM_IO: - dprintk("SYSTEM IO addr space\n"); + pr_debug("SYSTEM IO addr space\n"); data->cpu_feature = SYSTEM_IO_CAPABLE; break; case ACPI_ADR_SPACE_FIXED_HARDWARE: - dprintk("HARDWARE addr space\n"); + pr_debug("HARDWARE addr space\n"); if (!check_est_cpu(cpu)) { result = -ENODEV; goto err_unreg; @@ -590,7 +587,7 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy) data->cpu_feature = SYSTEM_INTEL_MSR_CAPABLE; break; default: - dprintk("Unknown addr space %d\n", + pr_debug("Unknown addr space %d\n", (u32) (perf->control_register.space_id)); result = -ENODEV; goto err_unreg; @@ -661,9 +658,9 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy) if (cpu_has(c, X86_FEATURE_APERFMPERF)) acpi_cpufreq_driver.getavg = cpufreq_get_measured_perf; - dprintk("CPU%u - ACPI performance management activated.\n", cpu); + pr_debug("CPU%u - ACPI performance management activated.\n", cpu); for (i = 0; i < perf->state_count; i++) - dprintk(" %cP%d: %d MHz, %d mW, %d uS\n", + pr_debug(" %cP%d: %d MHz, %d mW, %d uS\n", (i == perf->state ? '*' : ' '), i, (u32) perf->states[i].core_frequency, (u32) perf->states[i].power, @@ -694,7 +691,7 @@ static int acpi_cpufreq_cpu_exit(struct cpufreq_policy *policy) { struct acpi_cpufreq_data *data = per_cpu(acfreq_data, policy->cpu); - dprintk("acpi_cpufreq_cpu_exit\n"); + pr_debug("acpi_cpufreq_cpu_exit\n"); if (data) { cpufreq_frequency_table_put_attr(policy->cpu); @@ -712,7 +709,7 @@ static int acpi_cpufreq_resume(struct cpufreq_policy *policy) { struct acpi_cpufreq_data *data = per_cpu(acfreq_data, policy->cpu); - dprintk("acpi_cpufreq_resume\n"); + pr_debug("acpi_cpufreq_resume\n"); data->resume = 1; @@ -743,7 +740,7 @@ static int __init acpi_cpufreq_init(void) if (acpi_disabled) return 0; - dprintk("acpi_cpufreq_init\n"); + pr_debug("acpi_cpufreq_init\n"); ret = acpi_cpufreq_early_init(); if (ret) @@ -758,7 +755,7 @@ static int __init acpi_cpufreq_init(void) static void __exit acpi_cpufreq_exit(void) { - dprintk("acpi_cpufreq_exit\n"); + pr_debug("acpi_cpufreq_exit\n"); cpufreq_unregister_driver(&acpi_cpufreq_driver); diff --git a/arch/x86/kernel/cpu/cpufreq/cpufreq-nforce2.c b/drivers/cpufreq/cpufreq-nforce2.c index 141abebc451..7bac808804f 100644 --- a/arch/x86/kernel/cpu/cpufreq/cpufreq-nforce2.c +++ b/drivers/cpufreq/cpufreq-nforce2.c @@ -57,8 +57,6 @@ MODULE_PARM_DESC(min_fsb, "Minimum FSB to use, if not defined: current FSB - 50"); #define PFX "cpufreq-nforce2: " -#define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, \ - "cpufreq-nforce2", msg) /** * nforce2_calc_fsb - calculate FSB @@ -270,7 +268,7 @@ static int nforce2_target(struct cpufreq_policy *policy, if (freqs.old == freqs.new) return 0; - dprintk("Old CPU frequency %d kHz, new %d kHz\n", + pr_debug("Old CPU frequency %d kHz, new %d kHz\n", freqs.old, freqs.new); cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); @@ -282,7 +280,7 @@ static int nforce2_target(struct cpufreq_policy *policy, printk(KERN_ERR PFX "Changing FSB to %d failed\n", target_fsb); else - dprintk("Changed FSB successfully to %d\n", + pr_debug("Changed FSB successfully to %d\n", target_fsb); /* Enable IRQs */ diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 2dafc5c38ae..0a5bea9e358 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -32,9 +32,6 @@ #include <trace/events/power.h> -#define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_CORE, \ - "cpufreq-core", msg) - /** * The "cpufreq driver" - the arch- or hardware-dependent low * level driver of CPUFreq support, and its spinlock. This lock @@ -181,93 +178,6 @@ EXPORT_SYMBOL_GPL(cpufreq_cpu_put); /********************************************************************* - * UNIFIED DEBUG HELPERS * - *********************************************************************/ -#ifdef CONFIG_CPU_FREQ_DEBUG - -/* what part(s) of the CPUfreq subsystem are debugged? */ -static unsigned int debug; - -/* is the debug output ratelimit'ed using printk_ratelimit? User can - * set or modify this value. - */ -static unsigned int debug_ratelimit = 1; - -/* is the printk_ratelimit'ing enabled? It's enabled after a successful - * loading of a cpufreq driver, temporarily disabled when a new policy - * is set, and disabled upon cpufreq driver removal - */ -static unsigned int disable_ratelimit = 1; -static DEFINE_SPINLOCK(disable_ratelimit_lock); - -static void cpufreq_debug_enable_ratelimit(void) -{ - unsigned long flags; - - spin_lock_irqsave(&disable_ratelimit_lock, flags); - if (disable_ratelimit) - disable_ratelimit--; - spin_unlock_irqrestore(&disable_ratelimit_lock, flags); -} - -static void cpufreq_debug_disable_ratelimit(void) -{ - unsigned long flags; - - spin_lock_irqsave(&disable_ratelimit_lock, flags); - disable_ratelimit++; - spin_unlock_irqrestore(&disable_ratelimit_lock, flags); -} - -void cpufreq_debug_printk(unsigned int type, const char *prefix, - const char *fmt, ...) -{ - char s[256]; - va_list args; - unsigned int len; - unsigned long flags; - - WARN_ON(!prefix); - if (type & debug) { - spin_lock_irqsave(&disable_ratelimit_lock, flags); - if (!disable_ratelimit && debug_ratelimit - && !printk_ratelimit()) { - spin_unlock_irqrestore(&disable_ratelimit_lock, flags); - return; - } - spin_unlock_irqrestore(&disable_ratelimit_lock, flags); - - len = snprintf(s, 256, KERN_DEBUG "%s: ", prefix); - - va_start(args, fmt); - len += vsnprintf(&s[len], (256 - len), fmt, args); - va_end(args); - - printk(s); - - WARN_ON(len < 5); - } -} -EXPORT_SYMBOL(cpufreq_debug_printk); - - -module_param(debug, uint, 0644); -MODULE_PARM_DESC(debug, "CPUfreq debugging: add 1 to debug core," - " 2 to debug drivers, and 4 to debug governors."); - -module_param(debug_ratelimit, uint, 0644); -MODULE_PARM_DESC(debug_ratelimit, "CPUfreq debugging:" - " set to 0 to disable ratelimiting."); - -#else /* !CONFIG_CPU_FREQ_DEBUG */ - -static inline void cpufreq_debug_enable_ratelimit(void) { return; } -static inline void cpufreq_debug_disable_ratelimit(void) { return; } - -#endif /* CONFIG_CPU_FREQ_DEBUG */ - - -/********************************************************************* * EXTERNALLY AFFECTING FREQUENCY CHANGES * *********************************************************************/ @@ -291,7 +201,7 @@ static void adjust_jiffies(unsigned long val, struct cpufreq_freqs *ci) if (!l_p_j_ref_freq) { l_p_j_ref = loops_per_jiffy; l_p_j_ref_freq = ci->old; - dprintk("saving %lu as reference value for loops_per_jiffy; " + pr_debug("saving %lu as reference value for loops_per_jiffy; " "freq is %u kHz\n", l_p_j_ref, l_p_j_ref_freq); } if ((val == CPUFREQ_PRECHANGE && ci->old < ci->new) || @@ -299,7 +209,7 @@ static void adjust_jiffies(unsigned long val, struct cpufreq_freqs *ci) (val == CPUFREQ_RESUMECHANGE || val == CPUFREQ_SUSPENDCHANGE)) { loops_per_jiffy = cpufreq_scale(l_p_j_ref, l_p_j_ref_freq, ci->new); - dprintk("scaling loops_per_jiffy to %lu " + pr_debug("scaling loops_per_jiffy to %lu " "for frequency %u kHz\n", loops_per_jiffy, ci->new); } } @@ -326,7 +236,7 @@ void cpufreq_notify_transition(struct cpufreq_freqs *freqs, unsigned int state) BUG_ON(irqs_disabled()); freqs->flags = cpufreq_driver->flags; - dprintk("notification %u of frequency transition to %u kHz\n", + pr_debug("notification %u of frequency transition to %u kHz\n", state, freqs->new); policy = per_cpu(cpufreq_cpu_data, freqs->cpu); @@ -340,7 +250,7 @@ void cpufreq_notify_transition(struct cpufreq_freqs *freqs, unsigned int state) if (!(cpufreq_driver->flags & CPUFREQ_CONST_LOOPS)) { if ((policy) && (policy->cpu == freqs->cpu) && (policy->cur) && (policy->cur != freqs->old)) { - dprintk("Warning: CPU frequency is" + pr_debug("Warning: CPU frequency is" " %u, cpufreq assumed %u kHz.\n", freqs->old, policy->cur); freqs->old = policy->cur; @@ -353,7 +263,7 @@ void cpufreq_notify_transition(struct cpufreq_freqs *freqs, unsigned int state) case CPUFREQ_POSTCHANGE: adjust_jiffies(CPUFREQ_POSTCHANGE, freqs); - dprintk("FREQ: %lu - CPU: %lu", (unsigned long)freqs->new, + pr_debug("FREQ: %lu - CPU: %lu", (unsigned long)freqs->new, (unsigned long)freqs->cpu); trace_power_frequency(POWER_PSTATE, freqs->new, freqs->cpu); trace_cpu_frequency(freqs->new, freqs->cpu); @@ -411,21 +321,14 @@ static int cpufreq_parse_governor(char *str_governor, unsigned int *policy, t = __find_governor(str_governor); if (t == NULL) { - char *name = kasprintf(GFP_KERNEL, "cpufreq_%s", - str_governor); - - if (name) { - int ret; + int ret; - mutex_unlock(&cpufreq_governor_mutex); - ret = request_module("%s", name); - mutex_lock(&cpufreq_governor_mutex); + mutex_unlock(&cpufreq_governor_mutex); + ret = request_module("cpufreq_%s", str_governor); + mutex_lock(&cpufreq_governor_mutex); - if (ret == 0) - t = __find_governor(str_governor); - } - - kfree(name); + if (ret == 0) + t = __find_governor(str_governor); } if (t != NULL) { @@ -753,7 +656,7 @@ no_policy: static void cpufreq_sysfs_release(struct kobject *kobj) { struct cpufreq_policy *policy = to_policy(kobj); - dprintk("last reference is dropped\n"); + pr_debug("last reference is dropped\n"); complete(&policy->kobj_unregister); } @@ -788,7 +691,7 @@ static int cpufreq_add_dev_policy(unsigned int cpu, gov = __find_governor(per_cpu(cpufreq_cpu_governor, cpu)); if (gov) { policy->governor = gov; - dprintk("Restoring governor %s for cpu %d\n", + pr_debug("Restoring governor %s for cpu %d\n", policy->governor->name, cpu); } #endif @@ -824,7 +727,7 @@ static int cpufreq_add_dev_policy(unsigned int cpu, per_cpu(cpufreq_cpu_data, cpu) = managed_policy; spin_unlock_irqrestore(&cpufreq_driver_lock, flags); - dprintk("CPU already managed, adding link\n"); + pr_debug("CPU already managed, adding link\n"); ret = sysfs_create_link(&sys_dev->kobj, &managed_policy->kobj, "cpufreq"); @@ -865,7 +768,7 @@ static int cpufreq_add_dev_symlink(unsigned int cpu, if (!cpu_online(j)) continue; - dprintk("CPU %u already managed, adding link\n", j); + pr_debug("CPU %u already managed, adding link\n", j); managed_policy = cpufreq_cpu_get(cpu); cpu_sys_dev = get_cpu_sysdev(j); ret = sysfs_create_link(&cpu_sys_dev->kobj, &policy->kobj, @@ -941,7 +844,7 @@ static int cpufreq_add_dev_interface(unsigned int cpu, policy->user_policy.governor = policy->governor; if (ret) { - dprintk("setting policy failed\n"); + pr_debug("setting policy failed\n"); if (cpufreq_driver->exit) cpufreq_driver->exit(policy); } @@ -977,8 +880,7 @@ static int cpufreq_add_dev(struct sys_device *sys_dev) if (cpu_is_offline(cpu)) return 0; - cpufreq_debug_disable_ratelimit(); - dprintk("adding CPU %u\n", cpu); + pr_debug("adding CPU %u\n", cpu); #ifdef CONFIG_SMP /* check whether a different CPU already registered this @@ -986,7 +888,6 @@ static int cpufreq_add_dev(struct sys_device *sys_dev) policy = cpufreq_cpu_get(cpu); if (unlikely(policy)) { cpufreq_cpu_put(policy); - cpufreq_debug_enable_ratelimit(); return 0; } #endif @@ -1037,7 +938,7 @@ static int cpufreq_add_dev(struct sys_device *sys_dev) */ ret = cpufreq_driver->init(policy); if (ret) { - dprintk("initialization failed\n"); + pr_debug("initialization failed\n"); goto err_unlock_policy; } policy->user_policy.min = policy->min; @@ -1063,8 +964,7 @@ static int cpufreq_add_dev(struct sys_device *sys_dev) kobject_uevent(&policy->kobj, KOBJ_ADD); module_put(cpufreq_driver->owner); - dprintk("initialization complete\n"); - cpufreq_debug_enable_ratelimit(); + pr_debug("initialization complete\n"); return 0; @@ -1088,7 +988,6 @@ err_free_policy: nomem_out: module_put(cpufreq_driver->owner); module_out: - cpufreq_debug_enable_ratelimit(); return ret; } @@ -1112,15 +1011,13 @@ static int __cpufreq_remove_dev(struct sys_device *sys_dev) unsigned int j; #endif - cpufreq_debug_disable_ratelimit(); - dprintk("unregistering CPU %u\n", cpu); + pr_debug("unregistering CPU %u\n", cpu); spin_lock_irqsave(&cpufreq_driver_lock, flags); data = per_cpu(cpufreq_cpu_data, cpu); if (!data) { spin_unlock_irqrestore(&cpufreq_driver_lock, flags); - cpufreq_debug_enable_ratelimit(); unlock_policy_rwsem_write(cpu); return -EINVAL; } @@ -1132,12 +1029,11 @@ static int __cpufreq_remove_dev(struct sys_device *sys_dev) * only need to unlink, put and exit */ if (unlikely(cpu != data->cpu)) { - dprintk("removing link\n"); + pr_debug("removing link\n"); cpumask_clear_cpu(cpu, data->cpus); spin_unlock_irqrestore(&cpufreq_driver_lock, flags); kobj = &sys_dev->kobj; cpufreq_cpu_put(data); - cpufreq_debug_enable_ratelimit(); unlock_policy_rwsem_write(cpu); sysfs_remove_link(kobj, "cpufreq"); return 0; @@ -1170,7 +1066,7 @@ static int __cpufreq_remove_dev(struct sys_device *sys_dev) for_each_cpu(j, data->cpus) { if (j == cpu) continue; - dprintk("removing link for cpu %u\n", j); + pr_debug("removing link for cpu %u\n", j); #ifdef CONFIG_HOTPLUG_CPU strncpy(per_cpu(cpufreq_cpu_governor, j), data->governor->name, CPUFREQ_NAME_LEN); @@ -1199,21 +1095,35 @@ static int __cpufreq_remove_dev(struct sys_device *sys_dev) * not referenced anymore by anybody before we proceed with * unloading. */ - dprintk("waiting for dropping of refcount\n"); + pr_debug("waiting for dropping of refcount\n"); wait_for_completion(cmp); - dprintk("wait complete\n"); + pr_debug("wait complete\n"); lock_policy_rwsem_write(cpu); if (cpufreq_driver->exit) cpufreq_driver->exit(data); unlock_policy_rwsem_write(cpu); +#ifdef CONFIG_HOTPLUG_CPU + /* when the CPU which is the parent of the kobj is hotplugged + * offline, check for siblings, and create cpufreq sysfs interface + * and symlinks + */ + if (unlikely(cpumask_weight(data->cpus) > 1)) { + /* first sibling now owns the new sysfs dir */ + cpumask_clear_cpu(cpu, data->cpus); + cpufreq_add_dev(get_cpu_sysdev(cpumask_first(data->cpus))); + + /* finally remove our own symlink */ + lock_policy_rwsem_write(cpu); + __cpufreq_remove_dev(sys_dev); + } +#endif + free_cpumask_var(data->related_cpus); free_cpumask_var(data->cpus); kfree(data); - per_cpu(cpufreq_cpu_data, cpu) = NULL; - cpufreq_debug_enable_ratelimit(); return 0; } @@ -1239,7 +1149,7 @@ static void handle_update(struct work_struct *work) struct cpufreq_policy *policy = container_of(work, struct cpufreq_policy, update); unsigned int cpu = policy->cpu; - dprintk("handle_update for cpu %u called\n", cpu); + pr_debug("handle_update for cpu %u called\n", cpu); cpufreq_update_policy(cpu); } @@ -1257,7 +1167,7 @@ static void cpufreq_out_of_sync(unsigned int cpu, unsigned int old_freq, { struct cpufreq_freqs freqs; - dprintk("Warning: CPU frequency out of sync: cpufreq and timing " + pr_debug("Warning: CPU frequency out of sync: cpufreq and timing " "core thinks of %u, is %u kHz.\n", old_freq, new_freq); freqs.cpu = cpu; @@ -1360,7 +1270,7 @@ static int cpufreq_bp_suspend(void) int cpu = smp_processor_id(); struct cpufreq_policy *cpu_policy; - dprintk("suspending cpu %u\n", cpu); + pr_debug("suspending cpu %u\n", cpu); /* If there's no policy for the boot CPU, we have nothing to do. */ cpu_policy = cpufreq_cpu_get(cpu); @@ -1398,7 +1308,7 @@ static void cpufreq_bp_resume(void) int cpu = smp_processor_id(); struct cpufreq_policy *cpu_policy; - dprintk("resuming cpu %u\n", cpu); + pr_debug("resuming cpu %u\n", cpu); /* If there's no policy for the boot CPU, we have nothing to do. */ cpu_policy = cpufreq_cpu_get(cpu); @@ -1510,7 +1420,7 @@ int __cpufreq_driver_target(struct cpufreq_policy *policy, { int retval = -EINVAL; - dprintk("target for CPU %u: %u kHz, relation %u\n", policy->cpu, + pr_debug("target for CPU %u: %u kHz, relation %u\n", policy->cpu, target_freq, relation); if (cpu_online(policy->cpu) && cpufreq_driver->target) retval = cpufreq_driver->target(policy, target_freq, relation); @@ -1596,7 +1506,7 @@ static int __cpufreq_governor(struct cpufreq_policy *policy, if (!try_module_get(policy->governor->owner)) return -EINVAL; - dprintk("__cpufreq_governor for CPU %u, event %u\n", + pr_debug("__cpufreq_governor for CPU %u, event %u\n", policy->cpu, event); ret = policy->governor->governor(policy, event); @@ -1697,8 +1607,7 @@ static int __cpufreq_set_policy(struct cpufreq_policy *data, { int ret = 0; - cpufreq_debug_disable_ratelimit(); - dprintk("setting new policy for CPU %u: %u - %u kHz\n", policy->cpu, + pr_debug("setting new policy for CPU %u: %u - %u kHz\n", policy->cpu, policy->min, policy->max); memcpy(&policy->cpuinfo, &data->cpuinfo, @@ -1735,19 +1644,19 @@ static int __cpufreq_set_policy(struct cpufreq_policy *data, data->min = policy->min; data->max = policy->max; - dprintk("new min and max freqs are %u - %u kHz\n", + pr_debug("new min and max freqs are %u - %u kHz\n", data->min, data->max); if (cpufreq_driver->setpolicy) { data->policy = policy->policy; - dprintk("setting range\n"); + pr_debug("setting range\n"); ret = cpufreq_driver->setpolicy(policy); } else { if (policy->governor != data->governor) { /* save old, working values */ struct cpufreq_governor *old_gov = data->governor; - dprintk("governor switch\n"); + pr_debug("governor switch\n"); /* end old governor */ if (data->governor) @@ -1757,7 +1666,7 @@ static int __cpufreq_set_policy(struct cpufreq_policy *data, data->governor = policy->governor; if (__cpufreq_governor(data, CPUFREQ_GOV_START)) { /* new governor failed, so re-start old one */ - dprintk("starting governor %s failed\n", + pr_debug("starting governor %s failed\n", data->governor->name); if (old_gov) { data->governor = old_gov; @@ -1769,12 +1678,11 @@ static int __cpufreq_set_policy(struct cpufreq_policy *data, } /* might be a policy change, too, so fall through */ } - dprintk("governor: change or update limits\n"); + pr_debug("governor: change or update limits\n"); __cpufreq_governor(data, CPUFREQ_GOV_LIMITS); } error_out: - cpufreq_debug_enable_ratelimit(); return ret; } @@ -1801,7 +1709,7 @@ int cpufreq_update_policy(unsigned int cpu) goto fail; } - dprintk("updating policy for CPU %u\n", cpu); + pr_debug("updating policy for CPU %u\n", cpu); memcpy(&policy, data, sizeof(struct cpufreq_policy)); policy.min = data->user_policy.min; policy.max = data->user_policy.max; @@ -1813,7 +1721,7 @@ int cpufreq_update_policy(unsigned int cpu) if (cpufreq_driver->get) { policy.cur = cpufreq_driver->get(cpu); if (!data->cur) { - dprintk("Driver did not initialize current freq"); + pr_debug("Driver did not initialize current freq"); data->cur = policy.cur; } else { if (data->cur != policy.cur) @@ -1889,7 +1797,7 @@ int cpufreq_register_driver(struct cpufreq_driver *driver_data) ((!driver_data->setpolicy) && (!driver_data->target))) return -EINVAL; - dprintk("trying to register driver %s\n", driver_data->name); + pr_debug("trying to register driver %s\n", driver_data->name); if (driver_data->setpolicy) driver_data->flags |= CPUFREQ_CONST_LOOPS; @@ -1920,15 +1828,14 @@ int cpufreq_register_driver(struct cpufreq_driver *driver_data) /* if all ->init() calls failed, unregister */ if (ret) { - dprintk("no CPU initialized for driver %s\n", + pr_debug("no CPU initialized for driver %s\n", driver_data->name); goto err_sysdev_unreg; } } register_hotcpu_notifier(&cpufreq_cpu_notifier); - dprintk("driver %s up and running\n", driver_data->name); - cpufreq_debug_enable_ratelimit(); + pr_debug("driver %s up and running\n", driver_data->name); return 0; err_sysdev_unreg: @@ -1955,14 +1862,10 @@ int cpufreq_unregister_driver(struct cpufreq_driver *driver) { unsigned long flags; - cpufreq_debug_disable_ratelimit(); - - if (!cpufreq_driver || (driver != cpufreq_driver)) { - cpufreq_debug_enable_ratelimit(); + if (!cpufreq_driver || (driver != cpufreq_driver)) return -EINVAL; - } - dprintk("unregistering driver %s\n", driver->name); + pr_debug("unregistering driver %s\n", driver->name); sysdev_driver_unregister(&cpu_sysdev_class, &cpufreq_sysdev_driver); unregister_hotcpu_notifier(&cpufreq_cpu_notifier); diff --git a/drivers/cpufreq/cpufreq_performance.c b/drivers/cpufreq/cpufreq_performance.c index 7e2e515087f..f13a8a9af6a 100644 --- a/drivers/cpufreq/cpufreq_performance.c +++ b/drivers/cpufreq/cpufreq_performance.c @@ -15,9 +15,6 @@ #include <linux/cpufreq.h> #include <linux/init.h> -#define dprintk(msg...) \ - cpufreq_debug_printk(CPUFREQ_DEBUG_GOVERNOR, "performance", msg) - static int cpufreq_governor_performance(struct cpufreq_policy *policy, unsigned int event) @@ -25,7 +22,7 @@ static int cpufreq_governor_performance(struct cpufreq_policy *policy, switch (event) { case CPUFREQ_GOV_START: case CPUFREQ_GOV_LIMITS: - dprintk("setting to %u kHz because of event %u\n", + pr_debug("setting to %u kHz because of event %u\n", policy->max, event); __cpufreq_driver_target(policy, policy->max, CPUFREQ_RELATION_H); diff --git a/drivers/cpufreq/cpufreq_powersave.c b/drivers/cpufreq/cpufreq_powersave.c index e6db5faf3eb..4c2eb512f2b 100644 --- a/drivers/cpufreq/cpufreq_powersave.c +++ b/drivers/cpufreq/cpufreq_powersave.c @@ -15,16 +15,13 @@ #include <linux/cpufreq.h> #include <linux/init.h> -#define dprintk(msg...) \ - cpufreq_debug_printk(CPUFREQ_DEBUG_GOVERNOR, "powersave", msg) - static int cpufreq_governor_powersave(struct cpufreq_policy *policy, unsigned int event) { switch (event) { case CPUFREQ_GOV_START: case CPUFREQ_GOV_LIMITS: - dprintk("setting to %u kHz because of event %u\n", + pr_debug("setting to %u kHz because of event %u\n", policy->min, event); __cpufreq_driver_target(policy, policy->min, CPUFREQ_RELATION_L); diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c index 00d73fc8e4e..b60a4c26368 100644 --- a/drivers/cpufreq/cpufreq_stats.c +++ b/drivers/cpufreq/cpufreq_stats.c @@ -165,17 +165,27 @@ static int freq_table_get_index(struct cpufreq_stats *stat, unsigned int freq) return -1; } +/* should be called late in the CPU removal sequence so that the stats + * memory is still available in case someone tries to use it. + */ static void cpufreq_stats_free_table(unsigned int cpu) { struct cpufreq_stats *stat = per_cpu(cpufreq_stats_table, cpu); - struct cpufreq_policy *policy = cpufreq_cpu_get(cpu); - if (policy && policy->cpu == cpu) - sysfs_remove_group(&policy->kobj, &stats_attr_group); if (stat) { kfree(stat->time_in_state); kfree(stat); } per_cpu(cpufreq_stats_table, cpu) = NULL; +} + +/* must be called early in the CPU removal sequence (before + * cpufreq_remove_dev) so that policy is still valid. + */ +static void cpufreq_stats_free_sysfs(unsigned int cpu) +{ + struct cpufreq_policy *policy = cpufreq_cpu_get(cpu); + if (policy && policy->cpu == cpu) + sysfs_remove_group(&policy->kobj, &stats_attr_group); if (policy) cpufreq_cpu_put(policy); } @@ -316,6 +326,9 @@ static int __cpuinit cpufreq_stat_cpu_callback(struct notifier_block *nfb, case CPU_ONLINE_FROZEN: cpufreq_update_policy(cpu); break; + case CPU_DOWN_PREPARE: + cpufreq_stats_free_sysfs(cpu); + break; case CPU_DEAD: case CPU_DEAD_FROZEN: cpufreq_stats_free_table(cpu); @@ -324,9 +337,10 @@ static int __cpuinit cpufreq_stat_cpu_callback(struct notifier_block *nfb, return NOTIFY_OK; } -static struct notifier_block cpufreq_stat_cpu_notifier __refdata = -{ +/* priority=1 so this will get called before cpufreq_remove_dev */ +static struct notifier_block cpufreq_stat_cpu_notifier __refdata = { .notifier_call = cpufreq_stat_cpu_callback, + .priority = 1, }; static struct notifier_block notifier_policy_block = { diff --git a/drivers/cpufreq/cpufreq_userspace.c b/drivers/cpufreq/cpufreq_userspace.c index 66d2d1d6c80..f231015904c 100644 --- a/drivers/cpufreq/cpufreq_userspace.c +++ b/drivers/cpufreq/cpufreq_userspace.c @@ -37,9 +37,6 @@ static DEFINE_PER_CPU(unsigned int, cpu_is_managed); static DEFINE_MUTEX(userspace_mutex); static int cpus_using_userspace_governor; -#define dprintk(msg...) \ - cpufreq_debug_printk(CPUFREQ_DEBUG_GOVERNOR, "userspace", msg) - /* keep track of frequency transitions */ static int userspace_cpufreq_notifier(struct notifier_block *nb, unsigned long val, @@ -50,7 +47,7 @@ userspace_cpufreq_notifier(struct notifier_block *nb, unsigned long val, if (!per_cpu(cpu_is_managed, freq->cpu)) return 0; - dprintk("saving cpu_cur_freq of cpu %u to be %u kHz\n", + pr_debug("saving cpu_cur_freq of cpu %u to be %u kHz\n", freq->cpu, freq->new); per_cpu(cpu_cur_freq, freq->cpu) = freq->new; @@ -73,7 +70,7 @@ static int cpufreq_set(struct cpufreq_policy *policy, unsigned int freq) { int ret = -EINVAL; - dprintk("cpufreq_set for cpu %u, freq %u kHz\n", policy->cpu, freq); + pr_debug("cpufreq_set for cpu %u, freq %u kHz\n", policy->cpu, freq); mutex_lock(&userspace_mutex); if (!per_cpu(cpu_is_managed, policy->cpu)) @@ -134,7 +131,7 @@ static int cpufreq_governor_userspace(struct cpufreq_policy *policy, per_cpu(cpu_max_freq, cpu) = policy->max; per_cpu(cpu_cur_freq, cpu) = policy->cur; per_cpu(cpu_set_freq, cpu) = policy->cur; - dprintk("managing cpu %u started " + pr_debug("managing cpu %u started " "(%u - %u kHz, currently %u kHz)\n", cpu, per_cpu(cpu_min_freq, cpu), @@ -156,12 +153,12 @@ static int cpufreq_governor_userspace(struct cpufreq_policy *policy, per_cpu(cpu_min_freq, cpu) = 0; per_cpu(cpu_max_freq, cpu) = 0; per_cpu(cpu_set_freq, cpu) = 0; - dprintk("managing cpu %u stopped\n", cpu); + pr_debug("managing cpu %u stopped\n", cpu); mutex_unlock(&userspace_mutex); break; case CPUFREQ_GOV_LIMITS: mutex_lock(&userspace_mutex); - dprintk("limit event for cpu %u: %u - %u kHz, " + pr_debug("limit event for cpu %u: %u - %u kHz, " "currently %u kHz, last set to %u kHz\n", cpu, policy->min, policy->max, per_cpu(cpu_cur_freq, cpu), diff --git a/arch/x86/kernel/cpu/cpufreq/e_powersaver.c b/drivers/cpufreq/e_powersaver.c index 35a257dd4bb..35a257dd4bb 100644 --- a/arch/x86/kernel/cpu/cpufreq/e_powersaver.c +++ b/drivers/cpufreq/e_powersaver.c diff --git a/arch/x86/kernel/cpu/cpufreq/elanfreq.c b/drivers/cpufreq/elanfreq.c index c587db472a7..c587db472a7 100644 --- a/arch/x86/kernel/cpu/cpufreq/elanfreq.c +++ b/drivers/cpufreq/elanfreq.c diff --git a/drivers/cpufreq/freq_table.c b/drivers/cpufreq/freq_table.c index 05432216e22..90431cb9280 100644 --- a/drivers/cpufreq/freq_table.c +++ b/drivers/cpufreq/freq_table.c @@ -14,9 +14,6 @@ #include <linux/init.h> #include <linux/cpufreq.h> -#define dprintk(msg...) \ - cpufreq_debug_printk(CPUFREQ_DEBUG_CORE, "freq-table", msg) - /********************************************************************* * FREQUENCY TABLE HELPERS * *********************************************************************/ @@ -31,11 +28,11 @@ int cpufreq_frequency_table_cpuinfo(struct cpufreq_policy *policy, for (i = 0; (table[i].frequency != CPUFREQ_TABLE_END); i++) { unsigned int freq = table[i].frequency; if (freq == CPUFREQ_ENTRY_INVALID) { - dprintk("table entry %u is invalid, skipping\n", i); + pr_debug("table entry %u is invalid, skipping\n", i); continue; } - dprintk("table entry %u: %u kHz, %u index\n", + pr_debug("table entry %u: %u kHz, %u index\n", i, freq, table[i].index); if (freq < min_freq) min_freq = freq; @@ -61,7 +58,7 @@ int cpufreq_frequency_table_verify(struct cpufreq_policy *policy, unsigned int i; unsigned int count = 0; - dprintk("request for verification of policy (%u - %u kHz) for cpu %u\n", + pr_debug("request for verification of policy (%u - %u kHz) for cpu %u\n", policy->min, policy->max, policy->cpu); if (!cpu_online(policy->cpu)) @@ -86,7 +83,7 @@ int cpufreq_frequency_table_verify(struct cpufreq_policy *policy, cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, policy->cpuinfo.max_freq); - dprintk("verification lead to (%u - %u kHz) for cpu %u\n", + pr_debug("verification lead to (%u - %u kHz) for cpu %u\n", policy->min, policy->max, policy->cpu); return 0; @@ -110,7 +107,7 @@ int cpufreq_frequency_table_target(struct cpufreq_policy *policy, }; unsigned int i; - dprintk("request for target %u kHz (relation: %u) for cpu %u\n", + pr_debug("request for target %u kHz (relation: %u) for cpu %u\n", target_freq, relation, policy->cpu); switch (relation) { @@ -167,7 +164,7 @@ int cpufreq_frequency_table_target(struct cpufreq_policy *policy, } else *index = optimal.index; - dprintk("target is %u (%u kHz, %u)\n", *index, table[*index].frequency, + pr_debug("target is %u (%u kHz, %u)\n", *index, table[*index].frequency, table[*index].index); return 0; @@ -216,14 +213,14 @@ EXPORT_SYMBOL_GPL(cpufreq_freq_attr_scaling_available_freqs); void cpufreq_frequency_table_get_attr(struct cpufreq_frequency_table *table, unsigned int cpu) { - dprintk("setting show_table for cpu %u to %p\n", cpu, table); + pr_debug("setting show_table for cpu %u to %p\n", cpu, table); per_cpu(cpufreq_show_table, cpu) = table; } EXPORT_SYMBOL_GPL(cpufreq_frequency_table_get_attr); void cpufreq_frequency_table_put_attr(unsigned int cpu) { - dprintk("clearing show_table for cpu %u\n", cpu); + pr_debug("clearing show_table for cpu %u\n", cpu); per_cpu(cpufreq_show_table, cpu) = NULL; } EXPORT_SYMBOL_GPL(cpufreq_frequency_table_put_attr); diff --git a/arch/x86/kernel/cpu/cpufreq/gx-suspmod.c b/drivers/cpufreq/gx-suspmod.c index 32974cf8423..ffe1f2c92ed 100644 --- a/arch/x86/kernel/cpu/cpufreq/gx-suspmod.c +++ b/drivers/cpufreq/gx-suspmod.c @@ -142,9 +142,6 @@ module_param(max_duration, int, 0444); #define POLICY_MIN_DIV 20 -#define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, \ - "gx-suspmod", msg) - /** * we can detect a core multipiler from dir0_lsb * from GX1 datasheet p.56, @@ -191,7 +188,7 @@ static __init struct pci_dev *gx_detect_chipset(void) /* check if CPU is a MediaGX or a Geode. */ if ((boot_cpu_data.x86_vendor != X86_VENDOR_NSC) && (boot_cpu_data.x86_vendor != X86_VENDOR_CYRIX)) { - dprintk("error: no MediaGX/Geode processor found!\n"); + pr_debug("error: no MediaGX/Geode processor found!\n"); return NULL; } @@ -201,7 +198,7 @@ static __init struct pci_dev *gx_detect_chipset(void) return gx_pci; } - dprintk("error: no supported chipset found!\n"); + pr_debug("error: no supported chipset found!\n"); return NULL; } @@ -305,14 +302,14 @@ static void gx_set_cpuspeed(unsigned int khz) break; default: local_irq_restore(flags); - dprintk("fatal: try to set unknown chipset.\n"); + pr_debug("fatal: try to set unknown chipset.\n"); return; } } else { suscfg = gx_params->pci_suscfg & ~(SUSMOD); gx_params->off_duration = 0; gx_params->on_duration = 0; - dprintk("suspend modulation disabled: cpu runs 100%% speed.\n"); + pr_debug("suspend modulation disabled: cpu runs 100%% speed.\n"); } gx_write_byte(PCI_MODOFF, gx_params->off_duration); @@ -327,9 +324,9 @@ static void gx_set_cpuspeed(unsigned int khz) cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); - dprintk("suspend modulation w/ duration of ON:%d us, OFF:%d us\n", + pr_debug("suspend modulation w/ duration of ON:%d us, OFF:%d us\n", gx_params->on_duration * 32, gx_params->off_duration * 32); - dprintk("suspend modulation w/ clock speed: %d kHz.\n", freqs.new); + pr_debug("suspend modulation w/ clock speed: %d kHz.\n", freqs.new); } /**************************************************************** @@ -428,8 +425,8 @@ static int cpufreq_gx_cpu_init(struct cpufreq_policy *policy) stock_freq = maxfreq; curfreq = gx_get_cpuspeed(0); - dprintk("cpu max frequency is %d.\n", maxfreq); - dprintk("cpu current frequency is %dkHz.\n", curfreq); + pr_debug("cpu max frequency is %d.\n", maxfreq); + pr_debug("cpu current frequency is %dkHz.\n", curfreq); /* setup basic struct for cpufreq API */ policy->cpu = 0; @@ -475,7 +472,7 @@ static int __init cpufreq_gx_init(void) if (max_duration > 0xff) max_duration = 0xff; - dprintk("geode suspend modulation available.\n"); + pr_debug("geode suspend modulation available.\n"); params = kzalloc(sizeof(struct gxfreq_params), GFP_KERNEL); if (params == NULL) diff --git a/arch/x86/kernel/cpu/cpufreq/longhaul.c b/drivers/cpufreq/longhaul.c index cf48cdd6907..f47d26e2a13 100644 --- a/arch/x86/kernel/cpu/cpufreq/longhaul.c +++ b/drivers/cpufreq/longhaul.c @@ -77,9 +77,6 @@ static int scale_voltage; static int disable_acpi_c3; static int revid_errata; -#define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, \ - "longhaul", msg) - /* Clock ratios multiplied by 10 */ static int mults[32]; @@ -87,7 +84,6 @@ static int eblcr[32]; static int longhaul_version; static struct cpufreq_frequency_table *longhaul_table; -#ifdef CONFIG_CPU_FREQ_DEBUG static char speedbuffer[8]; static char *print_speed(int speed) @@ -106,7 +102,6 @@ static char *print_speed(int speed) return speedbuffer; } -#endif static unsigned int calc_speed(int mult) @@ -275,7 +270,7 @@ static void longhaul_setstate(unsigned int table_index) cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); - dprintk("Setting to FSB:%dMHz Mult:%d.%dx (%s)\n", + pr_debug("Setting to FSB:%dMHz Mult:%d.%dx (%s)\n", fsb, mult/10, mult%10, print_speed(speed/1000)); retry_loop: preempt_disable(); @@ -460,12 +455,12 @@ static int __cpuinit longhaul_get_ranges(void) break; } - dprintk("MinMult:%d.%dx MaxMult:%d.%dx\n", + pr_debug("MinMult:%d.%dx MaxMult:%d.%dx\n", minmult/10, minmult%10, maxmult/10, maxmult%10); highest_speed = calc_speed(maxmult); lowest_speed = calc_speed(minmult); - dprintk("FSB:%dMHz Lowest speed: %s Highest speed:%s\n", fsb, + pr_debug("FSB:%dMHz Lowest speed: %s Highest speed:%s\n", fsb, print_speed(lowest_speed/1000), print_speed(highest_speed/1000)); diff --git a/arch/x86/kernel/cpu/cpufreq/longhaul.h b/drivers/cpufreq/longhaul.h index cbf48fbca88..cbf48fbca88 100644 --- a/arch/x86/kernel/cpu/cpufreq/longhaul.h +++ b/drivers/cpufreq/longhaul.h diff --git a/arch/x86/kernel/cpu/cpufreq/longrun.c b/drivers/cpufreq/longrun.c index d9f51367666..34ea359b370 100644 --- a/arch/x86/kernel/cpu/cpufreq/longrun.c +++ b/drivers/cpufreq/longrun.c @@ -15,9 +15,6 @@ #include <asm/msr.h> #include <asm/processor.h> -#define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, \ - "longrun", msg) - static struct cpufreq_driver longrun_driver; /** @@ -40,14 +37,14 @@ static void __cpuinit longrun_get_policy(struct cpufreq_policy *policy) u32 msr_lo, msr_hi; rdmsr(MSR_TMTA_LONGRUN_FLAGS, msr_lo, msr_hi); - dprintk("longrun flags are %x - %x\n", msr_lo, msr_hi); + pr_debug("longrun flags are %x - %x\n", msr_lo, msr_hi); if (msr_lo & 0x01) policy->policy = CPUFREQ_POLICY_PERFORMANCE; else policy->policy = CPUFREQ_POLICY_POWERSAVE; rdmsr(MSR_TMTA_LONGRUN_CTRL, msr_lo, msr_hi); - dprintk("longrun ctrl is %x - %x\n", msr_lo, msr_hi); + pr_debug("longrun ctrl is %x - %x\n", msr_lo, msr_hi); msr_lo &= 0x0000007F; msr_hi &= 0x0000007F; @@ -150,7 +147,7 @@ static unsigned int longrun_get(unsigned int cpu) return 0; cpuid(0x80860007, &eax, &ebx, &ecx, &edx); - dprintk("cpuid eax is %u\n", eax); + pr_debug("cpuid eax is %u\n", eax); return eax * 1000; } @@ -196,7 +193,7 @@ static int __cpuinit longrun_determine_freqs(unsigned int *low_freq, rdmsr(MSR_TMTA_LRTI_VOLT_MHZ, msr_lo, msr_hi); *high_freq = msr_lo * 1000; /* to kHz */ - dprintk("longrun table interface told %u - %u kHz\n", + pr_debug("longrun table interface told %u - %u kHz\n", *low_freq, *high_freq); if (*low_freq > *high_freq) @@ -207,7 +204,7 @@ static int __cpuinit longrun_determine_freqs(unsigned int *low_freq, /* set the upper border to the value determined during TSC init */ *high_freq = (cpu_khz / 1000); *high_freq = *high_freq * 1000; - dprintk("high frequency is %u kHz\n", *high_freq); + pr_debug("high frequency is %u kHz\n", *high_freq); /* get current borders */ rdmsr(MSR_TMTA_LONGRUN_CTRL, msr_lo, msr_hi); @@ -233,7 +230,7 @@ static int __cpuinit longrun_determine_freqs(unsigned int *low_freq, /* restore values */ wrmsr(MSR_TMTA_LONGRUN_CTRL, save_lo, save_hi); } - dprintk("percentage is %u %%, freq is %u MHz\n", ecx, eax); + pr_debug("percentage is %u %%, freq is %u MHz\n", ecx, eax); /* performance_pctg = (current_freq - low_freq)/(high_freq - low_freq) * eqals @@ -249,7 +246,7 @@ static int __cpuinit longrun_determine_freqs(unsigned int *low_freq, edx = ((eax - ebx) * 100) / (100 - ecx); *low_freq = edx * 1000; /* back to kHz */ - dprintk("low frequency is %u kHz\n", *low_freq); + pr_debug("low frequency is %u kHz\n", *low_freq); if (*low_freq > *high_freq) *low_freq = *high_freq; diff --git a/arch/x86/kernel/cpu/cpufreq/mperf.c b/drivers/cpufreq/mperf.c index 911e193018a..911e193018a 100644 --- a/arch/x86/kernel/cpu/cpufreq/mperf.c +++ b/drivers/cpufreq/mperf.c diff --git a/arch/x86/kernel/cpu/cpufreq/mperf.h b/drivers/cpufreq/mperf.h index 5dbf2950dc2..5dbf2950dc2 100644 --- a/arch/x86/kernel/cpu/cpufreq/mperf.h +++ b/drivers/cpufreq/mperf.h diff --git a/arch/x86/kernel/cpu/cpufreq/p4-clockmod.c b/drivers/cpufreq/p4-clockmod.c index 52c93648e49..6be3e0760c2 100644 --- a/arch/x86/kernel/cpu/cpufreq/p4-clockmod.c +++ b/drivers/cpufreq/p4-clockmod.c @@ -35,8 +35,6 @@ #include "speedstep-lib.h" #define PFX "p4-clockmod: " -#define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, \ - "p4-clockmod", msg) /* * Duty Cycle (3bits), note DC_DISABLE is not specified in @@ -66,7 +64,7 @@ static int cpufreq_p4_setdc(unsigned int cpu, unsigned int newstate) rdmsr_on_cpu(cpu, MSR_IA32_THERM_STATUS, &l, &h); if (l & 0x01) - dprintk("CPU#%d currently thermal throttled\n", cpu); + pr_debug("CPU#%d currently thermal throttled\n", cpu); if (has_N44_O17_errata[cpu] && (newstate == DC_25PT || newstate == DC_DFLT)) @@ -74,10 +72,10 @@ static int cpufreq_p4_setdc(unsigned int cpu, unsigned int newstate) rdmsr_on_cpu(cpu, MSR_IA32_THERM_CONTROL, &l, &h); if (newstate == DC_DISABLE) { - dprintk("CPU#%d disabling modulation\n", cpu); + pr_debug("CPU#%d disabling modulation\n", cpu); wrmsr_on_cpu(cpu, MSR_IA32_THERM_CONTROL, l & ~(1<<4), h); } else { - dprintk("CPU#%d setting duty cycle to %d%%\n", + pr_debug("CPU#%d setting duty cycle to %d%%\n", cpu, ((125 * newstate) / 10)); /* bits 63 - 5 : reserved * bit 4 : enable/disable @@ -217,7 +215,7 @@ static int cpufreq_p4_cpu_init(struct cpufreq_policy *policy) case 0x0f11: case 0x0f12: has_N44_O17_errata[policy->cpu] = 1; - dprintk("has errata -- disabling low frequencies\n"); + pr_debug("has errata -- disabling low frequencies\n"); } if (speedstep_detect_processor() == SPEEDSTEP_CPU_P4D && diff --git a/arch/x86/kernel/cpu/cpufreq/pcc-cpufreq.c b/drivers/cpufreq/pcc-cpufreq.c index 755a31e0f5b..7b0603eb012 100644 --- a/arch/x86/kernel/cpu/cpufreq/pcc-cpufreq.c +++ b/drivers/cpufreq/pcc-cpufreq.c @@ -39,7 +39,7 @@ #include <acpi/processor.h> -#define PCC_VERSION "1.00.00" +#define PCC_VERSION "1.10.00" #define POLL_LOOPS 300 #define CMD_COMPLETE 0x1 @@ -48,9 +48,6 @@ #define BUF_SZ 4 -#define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, \ - "pcc-cpufreq", msg) - struct pcc_register_resource { u8 descriptor; u16 length; @@ -102,7 +99,7 @@ static struct acpi_generic_address doorbell; static u64 doorbell_preserve; static u64 doorbell_write; -static u8 OSC_UUID[16] = {0x63, 0x9B, 0x2C, 0x9F, 0x70, 0x91, 0x49, 0x1f, +static u8 OSC_UUID[16] = {0x9F, 0x2C, 0x9B, 0x63, 0x91, 0x70, 0x1f, 0x49, 0xBB, 0x4F, 0xA5, 0x98, 0x2F, 0xA1, 0xB5, 0x46}; struct pcc_cpu { @@ -152,7 +149,7 @@ static unsigned int pcc_get_freq(unsigned int cpu) spin_lock(&pcc_lock); - dprintk("get: get_freq for CPU %d\n", cpu); + pr_debug("get: get_freq for CPU %d\n", cpu); pcc_cpu_data = per_cpu_ptr(pcc_cpu_info, cpu); input_buffer = 0x1; @@ -170,7 +167,7 @@ static unsigned int pcc_get_freq(unsigned int cpu) status = ioread16(&pcch_hdr->status); if (status != CMD_COMPLETE) { - dprintk("get: FAILED: for CPU %d, status is %d\n", + pr_debug("get: FAILED: for CPU %d, status is %d\n", cpu, status); goto cmd_incomplete; } @@ -178,14 +175,14 @@ static unsigned int pcc_get_freq(unsigned int cpu) curr_freq = (((ioread32(&pcch_hdr->nominal) * (output_buffer & 0xff)) / 100) * 1000); - dprintk("get: SUCCESS: (virtual) output_offset for cpu %d is " - "0x%x, contains a value of: 0x%x. Speed is: %d MHz\n", + pr_debug("get: SUCCESS: (virtual) output_offset for cpu %d is " + "0x%p, contains a value of: 0x%x. Speed is: %d MHz\n", cpu, (pcch_virt_addr + pcc_cpu_data->output_offset), output_buffer, curr_freq); freq_limit = (output_buffer >> 8) & 0xff; if (freq_limit != 0xff) { - dprintk("get: frequency for cpu %d is being temporarily" + pr_debug("get: frequency for cpu %d is being temporarily" " capped at %d\n", cpu, curr_freq); } @@ -212,8 +209,8 @@ static int pcc_cpufreq_target(struct cpufreq_policy *policy, cpu = policy->cpu; pcc_cpu_data = per_cpu_ptr(pcc_cpu_info, cpu); - dprintk("target: CPU %d should go to target freq: %d " - "(virtual) input_offset is 0x%x\n", + pr_debug("target: CPU %d should go to target freq: %d " + "(virtual) input_offset is 0x%p\n", cpu, target_freq, (pcch_virt_addr + pcc_cpu_data->input_offset)); @@ -234,14 +231,14 @@ static int pcc_cpufreq_target(struct cpufreq_policy *policy, status = ioread16(&pcch_hdr->status); if (status != CMD_COMPLETE) { - dprintk("target: FAILED for cpu %d, with status: 0x%x\n", + pr_debug("target: FAILED for cpu %d, with status: 0x%x\n", cpu, status); goto cmd_incomplete; } iowrite16(0, &pcch_hdr->status); cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); - dprintk("target: was SUCCESSFUL for cpu %d\n", cpu); + pr_debug("target: was SUCCESSFUL for cpu %d\n", cpu); spin_unlock(&pcc_lock); return 0; @@ -293,7 +290,7 @@ static int pcc_get_offset(int cpu) memset_io((pcch_virt_addr + pcc_cpu_data->input_offset), 0, BUF_SZ); memset_io((pcch_virt_addr + pcc_cpu_data->output_offset), 0, BUF_SZ); - dprintk("pcc_get_offset: for CPU %d: pcc_cpu_data " + pr_debug("pcc_get_offset: for CPU %d: pcc_cpu_data " "input_offset: 0x%x, pcc_cpu_data output_offset: 0x%x\n", cpu, pcc_cpu_data->input_offset, pcc_cpu_data->output_offset); out_free: @@ -410,7 +407,7 @@ static int __init pcc_cpufreq_probe(void) if (ACPI_SUCCESS(status)) { ret = pcc_cpufreq_do_osc(&osc_handle); if (ret) - dprintk("probe: _OSC evaluation did not succeed\n"); + pr_debug("probe: _OSC evaluation did not succeed\n"); /* Firmware's use of _OSC is optional */ ret = 0; } @@ -433,7 +430,7 @@ static int __init pcc_cpufreq_probe(void) mem_resource = (struct pcc_memory_resource *)member->buffer.pointer; - dprintk("probe: mem_resource descriptor: 0x%x," + pr_debug("probe: mem_resource descriptor: 0x%x," " length: %d, space_id: %d, resource_usage: %d," " type_specific: %d, granularity: 0x%llx," " minimum: 0x%llx, maximum: 0x%llx," @@ -453,13 +450,13 @@ static int __init pcc_cpufreq_probe(void) pcch_virt_addr = ioremap_nocache(mem_resource->minimum, mem_resource->address_length); if (pcch_virt_addr == NULL) { - dprintk("probe: could not map shared mem region\n"); + pr_debug("probe: could not map shared mem region\n"); goto out_free; } pcch_hdr = pcch_virt_addr; - dprintk("probe: PCCH header (virtual) addr: 0x%p\n", pcch_hdr); - dprintk("probe: PCCH header is at physical address: 0x%llx," + pr_debug("probe: PCCH header (virtual) addr: 0x%p\n", pcch_hdr); + pr_debug("probe: PCCH header is at physical address: 0x%llx," " signature: 0x%x, length: %d bytes, major: %d, minor: %d," " supported features: 0x%x, command field: 0x%x," " status field: 0x%x, nominal latency: %d us\n", @@ -469,7 +466,7 @@ static int __init pcc_cpufreq_probe(void) ioread16(&pcch_hdr->command), ioread16(&pcch_hdr->status), ioread32(&pcch_hdr->latency)); - dprintk("probe: min time between commands: %d us," + pr_debug("probe: min time between commands: %d us," " max time between commands: %d us," " nominal CPU frequency: %d MHz," " minimum CPU frequency: %d MHz," @@ -494,7 +491,7 @@ static int __init pcc_cpufreq_probe(void) doorbell.access_width = 64; doorbell.address = reg_resource->address; - dprintk("probe: doorbell: space_id is %d, bit_width is %d, " + pr_debug("probe: doorbell: space_id is %d, bit_width is %d, " "bit_offset is %d, access_width is %d, address is 0x%llx\n", doorbell.space_id, doorbell.bit_width, doorbell.bit_offset, doorbell.access_width, reg_resource->address); @@ -515,7 +512,7 @@ static int __init pcc_cpufreq_probe(void) doorbell_write = member->integer.value; - dprintk("probe: doorbell_preserve: 0x%llx," + pr_debug("probe: doorbell_preserve: 0x%llx," " doorbell_write: 0x%llx\n", doorbell_preserve, doorbell_write); @@ -550,7 +547,7 @@ static int pcc_cpufreq_cpu_init(struct cpufreq_policy *policy) result = pcc_get_offset(cpu); if (result) { - dprintk("init: PCCP evaluation failed\n"); + pr_debug("init: PCCP evaluation failed\n"); goto out; } @@ -561,12 +558,12 @@ static int pcc_cpufreq_cpu_init(struct cpufreq_policy *policy) policy->cur = pcc_get_freq(cpu); if (!policy->cur) { - dprintk("init: Unable to get current CPU frequency\n"); + pr_debug("init: Unable to get current CPU frequency\n"); result = -EINVAL; goto out; } - dprintk("init: policy->max is %d, policy->min is %d\n", + pr_debug("init: policy->max is %d, policy->min is %d\n", policy->max, policy->min); out: return result; @@ -597,7 +594,7 @@ static int __init pcc_cpufreq_init(void) ret = pcc_cpufreq_probe(); if (ret) { - dprintk("pcc_cpufreq_init: PCCH evaluation failed\n"); + pr_debug("pcc_cpufreq_init: PCCH evaluation failed\n"); return ret; } diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k6.c b/drivers/cpufreq/powernow-k6.c index b3379d6a5c5..b3379d6a5c5 100644 --- a/arch/x86/kernel/cpu/cpufreq/powernow-k6.c +++ b/drivers/cpufreq/powernow-k6.c diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k7.c b/drivers/cpufreq/powernow-k7.c index 4a45fd6e41b..d71d9f37235 100644 --- a/arch/x86/kernel/cpu/cpufreq/powernow-k7.c +++ b/drivers/cpufreq/powernow-k7.c @@ -68,7 +68,6 @@ union powernow_acpi_control_t { }; #endif -#ifdef CONFIG_CPU_FREQ_DEBUG /* divide by 1000 to get VCore voltage in V. */ static const int mobile_vid_table[32] = { 2000, 1950, 1900, 1850, 1800, 1750, 1700, 1650, @@ -76,7 +75,6 @@ static const int mobile_vid_table[32] = { 1275, 1250, 1225, 1200, 1175, 1150, 1125, 1100, 1075, 1050, 1025, 1000, 975, 950, 925, 0, }; -#endif /* divide by 10 to get FID. */ static const int fid_codes[32] = { @@ -103,9 +101,6 @@ static unsigned int fsb; static unsigned int latency; static char have_a0; -#define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, \ - "powernow-k7", msg) - static int check_fsb(unsigned int fsbspeed) { int delta; @@ -209,7 +204,7 @@ static int get_ranges(unsigned char *pst) vid = *pst++; powernow_table[j].index |= (vid << 8); /* upper 8 bits */ - dprintk(" FID: 0x%x (%d.%dx [%dMHz]) " + pr_debug(" FID: 0x%x (%d.%dx [%dMHz]) " "VID: 0x%x (%d.%03dV)\n", fid, fid_codes[fid] / 10, fid_codes[fid] % 10, speed/1000, vid, mobile_vid_table[vid]/1000, @@ -367,7 +362,7 @@ static int powernow_acpi_init(void) unsigned int speed, speed_mhz; pc.val = (unsigned long) state->control; - dprintk("acpi: P%d: %d MHz %d mW %d uS control %08x SGTC %d\n", + pr_debug("acpi: P%d: %d MHz %d mW %d uS control %08x SGTC %d\n", i, (u32) state->core_frequency, (u32) state->power, @@ -401,7 +396,7 @@ static int powernow_acpi_init(void) invalidate_entry(i); } - dprintk(" FID: 0x%x (%d.%dx [%dMHz]) " + pr_debug(" FID: 0x%x (%d.%dx [%dMHz]) " "VID: 0x%x (%d.%03dV)\n", fid, fid_codes[fid] / 10, fid_codes[fid] % 10, speed_mhz, vid, mobile_vid_table[vid]/1000, @@ -409,7 +404,7 @@ static int powernow_acpi_init(void) if (state->core_frequency != speed_mhz) { state->core_frequency = speed_mhz; - dprintk(" Corrected ACPI frequency to %d\n", + pr_debug(" Corrected ACPI frequency to %d\n", speed_mhz); } @@ -453,8 +448,8 @@ static int powernow_acpi_init(void) static void print_pst_entry(struct pst_s *pst, unsigned int j) { - dprintk("PST:%d (@%p)\n", j, pst); - dprintk(" cpuid: 0x%x fsb: %d maxFID: 0x%x startvid: 0x%x\n", + pr_debug("PST:%d (@%p)\n", j, pst); + pr_debug(" cpuid: 0x%x fsb: %d maxFID: 0x%x startvid: 0x%x\n", pst->cpuid, pst->fsbspeed, pst->maxfid, pst->startvid); } @@ -474,20 +469,20 @@ static int powernow_decode_bios(int maxfid, int startvid) p = phys_to_virt(i); if (memcmp(p, "AMDK7PNOW!", 10) == 0) { - dprintk("Found PSB header at %p\n", p); + pr_debug("Found PSB header at %p\n", p); psb = (struct psb_s *) p; - dprintk("Table version: 0x%x\n", psb->tableversion); + pr_debug("Table version: 0x%x\n", psb->tableversion); if (psb->tableversion != 0x12) { printk(KERN_INFO PFX "Sorry, only v1.2 tables" " supported right now\n"); return -ENODEV; } - dprintk("Flags: 0x%x\n", psb->flags); + pr_debug("Flags: 0x%x\n", psb->flags); if ((psb->flags & 1) == 0) - dprintk("Mobile voltage regulator\n"); + pr_debug("Mobile voltage regulator\n"); else - dprintk("Desktop voltage regulator\n"); + pr_debug("Desktop voltage regulator\n"); latency = psb->settlingtime; if (latency < 100) { @@ -497,9 +492,9 @@ static int powernow_decode_bios(int maxfid, int startvid) "Correcting.\n", latency); latency = 100; } - dprintk("Settling Time: %d microseconds.\n", + pr_debug("Settling Time: %d microseconds.\n", psb->settlingtime); - dprintk("Has %d PST tables. (Only dumping ones " + pr_debug("Has %d PST tables. (Only dumping ones " "relevant to this CPU).\n", psb->numpst); @@ -650,7 +645,7 @@ static int __cpuinit powernow_cpu_init(struct cpufreq_policy *policy) printk(KERN_WARNING PFX "can not determine bus frequency\n"); return -EINVAL; } - dprintk("FSB: %3dMHz\n", fsb/1000); + pr_debug("FSB: %3dMHz\n", fsb/1000); if (dmi_check_system(powernow_dmi_table) || acpi_force) { printk(KERN_INFO PFX "PSB/PST known to be broken. " diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k7.h b/drivers/cpufreq/powernow-k7.h index 35fb4eaf6e1..35fb4eaf6e1 100644 --- a/arch/x86/kernel/cpu/cpufreq/powernow-k7.h +++ b/drivers/cpufreq/powernow-k7.h diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c b/drivers/cpufreq/powernow-k8.c index 2368e38327b..83479b6fb9a 100644 --- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c +++ b/drivers/cpufreq/powernow-k8.c @@ -139,7 +139,7 @@ static int query_current_values_with_pending_wait(struct powernow_k8_data *data) } do { if (i++ > 10000) { - dprintk("detected change pending stuck\n"); + pr_debug("detected change pending stuck\n"); return 1; } rdmsr(MSR_FIDVID_STATUS, lo, hi); @@ -176,7 +176,7 @@ static void fidvid_msr_init(void) fid = lo & MSR_S_LO_CURRENT_FID; lo = fid | (vid << MSR_C_LO_VID_SHIFT); hi = MSR_C_HI_STP_GNT_BENIGN; - dprintk("cpu%d, init lo 0x%x, hi 0x%x\n", smp_processor_id(), lo, hi); + pr_debug("cpu%d, init lo 0x%x, hi 0x%x\n", smp_processor_id(), lo, hi); wrmsr(MSR_FIDVID_CTL, lo, hi); } @@ -196,7 +196,7 @@ static int write_new_fid(struct powernow_k8_data *data, u32 fid) lo |= (data->currvid << MSR_C_LO_VID_SHIFT); lo |= MSR_C_LO_INIT_FID_VID; - dprintk("writing fid 0x%x, lo 0x%x, hi 0x%x\n", + pr_debug("writing fid 0x%x, lo 0x%x, hi 0x%x\n", fid, lo, data->plllock * PLL_LOCK_CONVERSION); do { @@ -244,7 +244,7 @@ static int write_new_vid(struct powernow_k8_data *data, u32 vid) lo |= (vid << MSR_C_LO_VID_SHIFT); lo |= MSR_C_LO_INIT_FID_VID; - dprintk("writing vid 0x%x, lo 0x%x, hi 0x%x\n", + pr_debug("writing vid 0x%x, lo 0x%x, hi 0x%x\n", vid, lo, STOP_GRANT_5NS); do { @@ -325,7 +325,7 @@ static int transition_fid_vid(struct powernow_k8_data *data, return 1; } - dprintk("transitioned (cpu%d): new fid 0x%x, vid 0x%x\n", + pr_debug("transitioned (cpu%d): new fid 0x%x, vid 0x%x\n", smp_processor_id(), data->currfid, data->currvid); return 0; @@ -339,7 +339,7 @@ static int core_voltage_pre_transition(struct powernow_k8_data *data, u32 savefid = data->currfid; u32 maxvid, lo, rvomult = 1; - dprintk("ph1 (cpu%d): start, currfid 0x%x, currvid 0x%x, " + pr_debug("ph1 (cpu%d): start, currfid 0x%x, currvid 0x%x, " "reqvid 0x%x, rvo 0x%x\n", smp_processor_id(), data->currfid, data->currvid, reqvid, data->rvo); @@ -349,12 +349,12 @@ static int core_voltage_pre_transition(struct powernow_k8_data *data, rvosteps *= rvomult; rdmsr(MSR_FIDVID_STATUS, lo, maxvid); maxvid = 0x1f & (maxvid >> 16); - dprintk("ph1 maxvid=0x%x\n", maxvid); + pr_debug("ph1 maxvid=0x%x\n", maxvid); if (reqvid < maxvid) /* lower numbers are higher voltages */ reqvid = maxvid; while (data->currvid > reqvid) { - dprintk("ph1: curr 0x%x, req vid 0x%x\n", + pr_debug("ph1: curr 0x%x, req vid 0x%x\n", data->currvid, reqvid); if (decrease_vid_code_by_step(data, reqvid, data->vidmvs)) return 1; @@ -365,7 +365,7 @@ static int core_voltage_pre_transition(struct powernow_k8_data *data, if (data->currvid == maxvid) { rvosteps = 0; } else { - dprintk("ph1: changing vid for rvo, req 0x%x\n", + pr_debug("ph1: changing vid for rvo, req 0x%x\n", data->currvid - 1); if (decrease_vid_code_by_step(data, data->currvid-1, 1)) return 1; @@ -382,7 +382,7 @@ static int core_voltage_pre_transition(struct powernow_k8_data *data, return 1; } - dprintk("ph1 complete, currfid 0x%x, currvid 0x%x\n", + pr_debug("ph1 complete, currfid 0x%x, currvid 0x%x\n", data->currfid, data->currvid); return 0; @@ -400,7 +400,7 @@ static int core_frequency_transition(struct powernow_k8_data *data, u32 reqfid) return 0; } - dprintk("ph2 (cpu%d): starting, currfid 0x%x, currvid 0x%x, " + pr_debug("ph2 (cpu%d): starting, currfid 0x%x, currvid 0x%x, " "reqfid 0x%x\n", smp_processor_id(), data->currfid, data->currvid, reqfid); @@ -457,7 +457,7 @@ static int core_frequency_transition(struct powernow_k8_data *data, u32 reqfid) return 1; } - dprintk("ph2 complete, currfid 0x%x, currvid 0x%x\n", + pr_debug("ph2 complete, currfid 0x%x, currvid 0x%x\n", data->currfid, data->currvid); return 0; @@ -470,7 +470,7 @@ static int core_voltage_post_transition(struct powernow_k8_data *data, u32 savefid = data->currfid; u32 savereqvid = reqvid; - dprintk("ph3 (cpu%d): starting, currfid 0x%x, currvid 0x%x\n", + pr_debug("ph3 (cpu%d): starting, currfid 0x%x, currvid 0x%x\n", smp_processor_id(), data->currfid, data->currvid); @@ -498,17 +498,17 @@ static int core_voltage_post_transition(struct powernow_k8_data *data, return 1; if (savereqvid != data->currvid) { - dprintk("ph3 failed, currvid 0x%x\n", data->currvid); + pr_debug("ph3 failed, currvid 0x%x\n", data->currvid); return 1; } if (savefid != data->currfid) { - dprintk("ph3 failed, currfid changed 0x%x\n", + pr_debug("ph3 failed, currfid changed 0x%x\n", data->currfid); return 1; } - dprintk("ph3 complete, currfid 0x%x, currvid 0x%x\n", + pr_debug("ph3 complete, currfid 0x%x, currvid 0x%x\n", data->currfid, data->currvid); return 0; @@ -707,7 +707,7 @@ static int fill_powernow_table(struct powernow_k8_data *data, return -EIO; } - dprintk("cfid 0x%x, cvid 0x%x\n", data->currfid, data->currvid); + pr_debug("cfid 0x%x, cvid 0x%x\n", data->currfid, data->currvid); data->powernow_table = powernow_table; if (cpumask_first(cpu_core_mask(data->cpu)) == data->cpu) print_basics(data); @@ -717,7 +717,7 @@ static int fill_powernow_table(struct powernow_k8_data *data, (pst[j].vid == data->currvid)) return 0; - dprintk("currfid/vid do not match PST, ignoring\n"); + pr_debug("currfid/vid do not match PST, ignoring\n"); return 0; } @@ -739,36 +739,36 @@ static int find_psb_table(struct powernow_k8_data *data) if (memcmp(psb, PSB_ID_STRING, PSB_ID_STRING_LEN) != 0) continue; - dprintk("found PSB header at 0x%p\n", psb); + pr_debug("found PSB header at 0x%p\n", psb); - dprintk("table vers: 0x%x\n", psb->tableversion); + pr_debug("table vers: 0x%x\n", psb->tableversion); if (psb->tableversion != PSB_VERSION_1_4) { printk(KERN_ERR FW_BUG PFX "PSB table is not v1.4\n"); return -ENODEV; } - dprintk("flags: 0x%x\n", psb->flags1); + pr_debug("flags: 0x%x\n", psb->flags1); if (psb->flags1) { printk(KERN_ERR FW_BUG PFX "unknown flags\n"); return -ENODEV; } data->vstable = psb->vstable; - dprintk("voltage stabilization time: %d(*20us)\n", + pr_debug("voltage stabilization time: %d(*20us)\n", data->vstable); - dprintk("flags2: 0x%x\n", psb->flags2); + pr_debug("flags2: 0x%x\n", psb->flags2); data->rvo = psb->flags2 & 3; data->irt = ((psb->flags2) >> 2) & 3; mvs = ((psb->flags2) >> 4) & 3; data->vidmvs = 1 << mvs; data->batps = ((psb->flags2) >> 6) & 3; - dprintk("ramp voltage offset: %d\n", data->rvo); - dprintk("isochronous relief time: %d\n", data->irt); - dprintk("maximum voltage step: %d - 0x%x\n", mvs, data->vidmvs); + pr_debug("ramp voltage offset: %d\n", data->rvo); + pr_debug("isochronous relief time: %d\n", data->irt); + pr_debug("maximum voltage step: %d - 0x%x\n", mvs, data->vidmvs); - dprintk("numpst: 0x%x\n", psb->num_tables); + pr_debug("numpst: 0x%x\n", psb->num_tables); cpst = psb->num_tables; if ((psb->cpuid == 0x00000fc0) || (psb->cpuid == 0x00000fe0)) { @@ -783,13 +783,13 @@ static int find_psb_table(struct powernow_k8_data *data) } data->plllock = psb->plllocktime; - dprintk("plllocktime: 0x%x (units 1us)\n", psb->plllocktime); - dprintk("maxfid: 0x%x\n", psb->maxfid); - dprintk("maxvid: 0x%x\n", psb->maxvid); + pr_debug("plllocktime: 0x%x (units 1us)\n", psb->plllocktime); + pr_debug("maxfid: 0x%x\n", psb->maxfid); + pr_debug("maxvid: 0x%x\n", psb->maxvid); maxvid = psb->maxvid; data->numps = psb->numps; - dprintk("numpstates: 0x%x\n", data->numps); + pr_debug("numpstates: 0x%x\n", data->numps); return fill_powernow_table(data, (struct pst_s *)(psb+1), maxvid); } @@ -834,13 +834,13 @@ static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data) u64 control, status; if (acpi_processor_register_performance(&data->acpi_data, data->cpu)) { - dprintk("register performance failed: bad ACPI data\n"); + pr_debug("register performance failed: bad ACPI data\n"); return -EIO; } /* verify the data contained in the ACPI structures */ if (data->acpi_data.state_count <= 1) { - dprintk("No ACPI P-States\n"); + pr_debug("No ACPI P-States\n"); goto err_out; } @@ -849,7 +849,7 @@ static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data) if ((control != ACPI_ADR_SPACE_FIXED_HARDWARE) || (status != ACPI_ADR_SPACE_FIXED_HARDWARE)) { - dprintk("Invalid control/status registers (%x - %x)\n", + pr_debug("Invalid control/status registers (%llx - %llx)\n", control, status); goto err_out; } @@ -858,7 +858,7 @@ static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data) powernow_table = kmalloc((sizeof(struct cpufreq_frequency_table) * (data->acpi_data.state_count + 1)), GFP_KERNEL); if (!powernow_table) { - dprintk("powernow_table memory alloc failure\n"); + pr_debug("powernow_table memory alloc failure\n"); goto err_out; } @@ -928,7 +928,7 @@ static int fill_powernow_table_pstate(struct powernow_k8_data *data, } rdmsr(MSR_PSTATE_DEF_BASE + index, lo, hi); if (!(hi & HW_PSTATE_VALID_MASK)) { - dprintk("invalid pstate %d, ignoring\n", index); + pr_debug("invalid pstate %d, ignoring\n", index); invalidate_entry(powernow_table, i); continue; } @@ -968,7 +968,7 @@ static int fill_powernow_table_fidvid(struct powernow_k8_data *data, vid = (control >> VID_SHIFT) & VID_MASK; } - dprintk(" %d : fid 0x%x, vid 0x%x\n", i, fid, vid); + pr_debug(" %d : fid 0x%x, vid 0x%x\n", i, fid, vid); index = fid | (vid<<8); powernow_table[i].index = index; @@ -978,7 +978,7 @@ static int fill_powernow_table_fidvid(struct powernow_k8_data *data, /* verify frequency is OK */ if ((freq > (MAX_FREQ * 1000)) || (freq < (MIN_FREQ * 1000))) { - dprintk("invalid freq %u kHz, ignoring\n", freq); + pr_debug("invalid freq %u kHz, ignoring\n", freq); invalidate_entry(powernow_table, i); continue; } @@ -986,7 +986,7 @@ static int fill_powernow_table_fidvid(struct powernow_k8_data *data, /* verify voltage is OK - * BIOSs are using "off" to indicate invalid */ if (vid == VID_OFF) { - dprintk("invalid vid %u, ignoring\n", vid); + pr_debug("invalid vid %u, ignoring\n", vid); invalidate_entry(powernow_table, i); continue; } @@ -1047,7 +1047,7 @@ static int transition_frequency_fidvid(struct powernow_k8_data *data, int res, i; struct cpufreq_freqs freqs; - dprintk("cpu %d transition to index %u\n", smp_processor_id(), index); + pr_debug("cpu %d transition to index %u\n", smp_processor_id(), index); /* fid/vid correctness check for k8 */ /* fid are the lower 8 bits of the index we stored into @@ -1057,18 +1057,18 @@ static int transition_frequency_fidvid(struct powernow_k8_data *data, fid = data->powernow_table[index].index & 0xFF; vid = (data->powernow_table[index].index & 0xFF00) >> 8; - dprintk("table matched fid 0x%x, giving vid 0x%x\n", fid, vid); + pr_debug("table matched fid 0x%x, giving vid 0x%x\n", fid, vid); if (query_current_values_with_pending_wait(data)) return 1; if ((data->currvid == vid) && (data->currfid == fid)) { - dprintk("target matches current values (fid 0x%x, vid 0x%x)\n", + pr_debug("target matches current values (fid 0x%x, vid 0x%x)\n", fid, vid); return 0; } - dprintk("cpu %d, changing to fid 0x%x, vid 0x%x\n", + pr_debug("cpu %d, changing to fid 0x%x, vid 0x%x\n", smp_processor_id(), fid, vid); freqs.old = find_khz_freq_from_fid(data->currfid); freqs.new = find_khz_freq_from_fid(fid); @@ -1096,7 +1096,7 @@ static int transition_frequency_pstate(struct powernow_k8_data *data, int res, i; struct cpufreq_freqs freqs; - dprintk("cpu %d transition to index %u\n", smp_processor_id(), index); + pr_debug("cpu %d transition to index %u\n", smp_processor_id(), index); /* get MSR index for hardware pstate transition */ pstate = index & HW_PSTATE_MASK; @@ -1156,14 +1156,14 @@ static int powernowk8_target(struct cpufreq_policy *pol, goto err_out; } - dprintk("targ: cpu %d, %d kHz, min %d, max %d, relation %d\n", + pr_debug("targ: cpu %d, %d kHz, min %d, max %d, relation %d\n", pol->cpu, targfreq, pol->min, pol->max, relation); if (query_current_values_with_pending_wait(data)) goto err_out; if (cpu_family != CPU_HW_PSTATE) { - dprintk("targ: curr fid 0x%x, vid 0x%x\n", + pr_debug("targ: curr fid 0x%x, vid 0x%x\n", data->currfid, data->currvid); if ((checkvid != data->currvid) || @@ -1319,7 +1319,7 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol) data->currpstate); else pol->cur = find_khz_freq_from_fid(data->currfid); - dprintk("policy current frequency %d kHz\n", pol->cur); + pr_debug("policy current frequency %d kHz\n", pol->cur); /* min/max the cpu is capable of */ if (cpufreq_frequency_table_cpuinfo(pol, data->powernow_table)) { @@ -1337,10 +1337,10 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol) cpufreq_frequency_table_get_attr(data->powernow_table, pol->cpu); if (cpu_family == CPU_HW_PSTATE) - dprintk("cpu_init done, current pstate 0x%x\n", + pr_debug("cpu_init done, current pstate 0x%x\n", data->currpstate); else - dprintk("cpu_init done, current fid 0x%x, vid 0x%x\n", + pr_debug("cpu_init done, current fid 0x%x, vid 0x%x\n", data->currfid, data->currvid); per_cpu(powernow_data, pol->cpu) = data; @@ -1586,7 +1586,7 @@ static int __cpuinit powernowk8_init(void) /* driver entry point for term */ static void __exit powernowk8_exit(void) { - dprintk("exit\n"); + pr_debug("exit\n"); if (boot_cpu_has(X86_FEATURE_CPB)) { msrs_free(msrs); diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.h b/drivers/cpufreq/powernow-k8.h index df3529b1c02..3744d26cdc2 100644 --- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.h +++ b/drivers/cpufreq/powernow-k8.h @@ -211,8 +211,6 @@ struct pst_s { u8 vid; }; -#define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, "powernow-k8", msg) - static int core_voltage_pre_transition(struct powernow_k8_data *data, u32 reqvid, u32 regfid); static int core_voltage_post_transition(struct powernow_k8_data *data, u32 reqvid); diff --git a/arch/x86/kernel/cpu/cpufreq/sc520_freq.c b/drivers/cpufreq/sc520_freq.c index 435a996a613..1e205e6b172 100644 --- a/arch/x86/kernel/cpu/cpufreq/sc520_freq.c +++ b/drivers/cpufreq/sc520_freq.c @@ -29,8 +29,6 @@ static __u8 __iomem *cpuctl; -#define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, \ - "sc520_freq", msg) #define PFX "sc520_freq: " static struct cpufreq_frequency_table sc520_freq_table[] = { @@ -66,7 +64,7 @@ static void sc520_freq_set_cpu_state(unsigned int state) cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); - dprintk("attempting to set frequency to %i kHz\n", + pr_debug("attempting to set frequency to %i kHz\n", sc520_freq_table[state].frequency); local_irq_disable(); @@ -161,7 +159,7 @@ static int __init sc520_freq_init(void) /* Test if we have the right hardware */ if (c->x86_vendor != X86_VENDOR_AMD || c->x86 != 4 || c->x86_model != 9) { - dprintk("no Elan SC520 processor found!\n"); + pr_debug("no Elan SC520 processor found!\n"); return -ENODEV; } cpuctl = ioremap((unsigned long)(MMCR_BASE + OFFS_CPUCTL), 1); diff --git a/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c b/drivers/cpufreq/speedstep-centrino.c index 9b1ff37de46..6ea3455def2 100644 --- a/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c +++ b/drivers/cpufreq/speedstep-centrino.c @@ -29,9 +29,6 @@ #define PFX "speedstep-centrino: " #define MAINTAINER "cpufreq@vger.kernel.org" -#define dprintk(msg...) \ - cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, "speedstep-centrino", msg) - #define INTEL_MSR_RANGE (0xffff) struct cpu_id @@ -244,7 +241,7 @@ static int centrino_cpu_init_table(struct cpufreq_policy *policy) if (model->cpu_id == NULL) { /* No match at all */ - dprintk("no support for CPU model \"%s\": " + pr_debug("no support for CPU model \"%s\": " "send /proc/cpuinfo to " MAINTAINER "\n", cpu->x86_model_id); return -ENOENT; @@ -252,15 +249,15 @@ static int centrino_cpu_init_table(struct cpufreq_policy *policy) if (model->op_points == NULL) { /* Matched a non-match */ - dprintk("no table support for CPU model \"%s\"\n", + pr_debug("no table support for CPU model \"%s\"\n", cpu->x86_model_id); - dprintk("try using the acpi-cpufreq driver\n"); + pr_debug("try using the acpi-cpufreq driver\n"); return -ENOENT; } per_cpu(centrino_model, policy->cpu) = model; - dprintk("found \"%s\": max frequency: %dkHz\n", + pr_debug("found \"%s\": max frequency: %dkHz\n", model->model_name, model->max_freq); return 0; @@ -369,7 +366,7 @@ static int centrino_cpu_init(struct cpufreq_policy *policy) per_cpu(centrino_cpu, policy->cpu) = &cpu_ids[i]; if (!per_cpu(centrino_cpu, policy->cpu)) { - dprintk("found unsupported CPU with " + pr_debug("found unsupported CPU with " "Enhanced SpeedStep: send /proc/cpuinfo to " MAINTAINER "\n"); return -ENODEV; @@ -385,7 +382,7 @@ static int centrino_cpu_init(struct cpufreq_policy *policy) if (!(l & MSR_IA32_MISC_ENABLE_ENHANCED_SPEEDSTEP)) { l |= MSR_IA32_MISC_ENABLE_ENHANCED_SPEEDSTEP; - dprintk("trying to enable Enhanced SpeedStep (%x)\n", l); + pr_debug("trying to enable Enhanced SpeedStep (%x)\n", l); wrmsr(MSR_IA32_MISC_ENABLE, l, h); /* check to see if it stuck */ @@ -402,7 +399,7 @@ static int centrino_cpu_init(struct cpufreq_policy *policy) /* 10uS transition latency */ policy->cur = freq; - dprintk("centrino_cpu_init: cur=%dkHz\n", policy->cur); + pr_debug("centrino_cpu_init: cur=%dkHz\n", policy->cur); ret = cpufreq_frequency_table_cpuinfo(policy, per_cpu(centrino_model, policy->cpu)->op_points); @@ -498,7 +495,7 @@ static int centrino_target (struct cpufreq_policy *policy, good_cpu = j; if (good_cpu >= nr_cpu_ids) { - dprintk("couldn't limit to CPUs in this domain\n"); + pr_debug("couldn't limit to CPUs in this domain\n"); retval = -EAGAIN; if (first_cpu) { /* We haven't started the transition yet. */ @@ -512,7 +509,7 @@ static int centrino_target (struct cpufreq_policy *policy, if (first_cpu) { rdmsr_on_cpu(good_cpu, MSR_IA32_PERF_CTL, &oldmsr, &h); if (msr == (oldmsr & 0xffff)) { - dprintk("no change needed - msr was and needs " + pr_debug("no change needed - msr was and needs " "to be %x\n", oldmsr); retval = 0; goto out; @@ -521,7 +518,7 @@ static int centrino_target (struct cpufreq_policy *policy, freqs.old = extract_clock(oldmsr, cpu, 0); freqs.new = extract_clock(msr, cpu, 0); - dprintk("target=%dkHz old=%d new=%d msr=%04x\n", + pr_debug("target=%dkHz old=%d new=%d msr=%04x\n", target_freq, freqs.old, freqs.new, msr); for_each_cpu(k, policy->cpus) { diff --git a/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c b/drivers/cpufreq/speedstep-ich.c index 561758e9518..a748ce782fe 100644 --- a/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c +++ b/drivers/cpufreq/speedstep-ich.c @@ -53,10 +53,6 @@ static struct cpufreq_frequency_table speedstep_freqs[] = { }; -#define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, \ - "speedstep-ich", msg) - - /** * speedstep_find_register - read the PMBASE address * @@ -80,7 +76,7 @@ static int speedstep_find_register(void) return -ENODEV; } - dprintk("pmbase is 0x%x\n", pmbase); + pr_debug("pmbase is 0x%x\n", pmbase); return 0; } @@ -106,13 +102,13 @@ static void speedstep_set_state(unsigned int state) /* read state */ value = inb(pmbase + 0x50); - dprintk("read at pmbase 0x%x + 0x50 returned 0x%x\n", pmbase, value); + pr_debug("read at pmbase 0x%x + 0x50 returned 0x%x\n", pmbase, value); /* write new state */ value &= 0xFE; value |= state; - dprintk("writing 0x%x to pmbase 0x%x + 0x50\n", value, pmbase); + pr_debug("writing 0x%x to pmbase 0x%x + 0x50\n", value, pmbase); /* Disable bus master arbitration */ pm2_blk = inb(pmbase + 0x20); @@ -132,10 +128,10 @@ static void speedstep_set_state(unsigned int state) /* Enable IRQs */ local_irq_restore(flags); - dprintk("read at pmbase 0x%x + 0x50 returned 0x%x\n", pmbase, value); + pr_debug("read at pmbase 0x%x + 0x50 returned 0x%x\n", pmbase, value); if (state == (value & 0x1)) - dprintk("change to %u MHz succeeded\n", + pr_debug("change to %u MHz succeeded\n", speedstep_get_frequency(speedstep_processor) / 1000); else printk(KERN_ERR "cpufreq: change failed - I/O error\n"); @@ -165,7 +161,7 @@ static int speedstep_activate(void) pci_read_config_word(speedstep_chipset_dev, 0x00A0, &value); if (!(value & 0x08)) { value |= 0x08; - dprintk("activating SpeedStep (TM) registers\n"); + pr_debug("activating SpeedStep (TM) registers\n"); pci_write_config_word(speedstep_chipset_dev, 0x00A0, value); } @@ -218,7 +214,7 @@ static unsigned int speedstep_detect_chipset(void) return 2; /* 2-M */ if (hostbridge->revision < 5) { - dprintk("hostbridge does not support speedstep\n"); + pr_debug("hostbridge does not support speedstep\n"); speedstep_chipset_dev = NULL; pci_dev_put(hostbridge); return 0; @@ -246,7 +242,7 @@ static unsigned int speedstep_get(unsigned int cpu) if (smp_call_function_single(cpu, get_freq_data, &speed, 1) != 0) BUG(); - dprintk("detected %u kHz as current frequency\n", speed); + pr_debug("detected %u kHz as current frequency\n", speed); return speed; } @@ -276,7 +272,7 @@ static int speedstep_target(struct cpufreq_policy *policy, freqs.new = speedstep_freqs[newstate].frequency; freqs.cpu = policy->cpu; - dprintk("transiting from %u to %u kHz\n", freqs.old, freqs.new); + pr_debug("transiting from %u to %u kHz\n", freqs.old, freqs.new); /* no transition necessary */ if (freqs.old == freqs.new) @@ -351,7 +347,7 @@ static int speedstep_cpu_init(struct cpufreq_policy *policy) if (!speed) return -EIO; - dprintk("currently at %s speed setting - %i MHz\n", + pr_debug("currently at %s speed setting - %i MHz\n", (speed == speedstep_freqs[SPEEDSTEP_LOW].frequency) ? "low" : "high", (speed / 1000)); @@ -405,14 +401,14 @@ static int __init speedstep_init(void) /* detect processor */ speedstep_processor = speedstep_detect_processor(); if (!speedstep_processor) { - dprintk("Intel(R) SpeedStep(TM) capable processor " + pr_debug("Intel(R) SpeedStep(TM) capable processor " "not found\n"); return -ENODEV; } /* detect chipset */ if (!speedstep_detect_chipset()) { - dprintk("Intel(R) SpeedStep(TM) for this chipset not " + pr_debug("Intel(R) SpeedStep(TM) for this chipset not " "(yet) available.\n"); return -ENODEV; } diff --git a/arch/x86/kernel/cpu/cpufreq/speedstep-lib.c b/drivers/cpufreq/speedstep-lib.c index a94ec6be69f..8af2d2fd9d5 100644 --- a/arch/x86/kernel/cpu/cpufreq/speedstep-lib.c +++ b/drivers/cpufreq/speedstep-lib.c @@ -18,9 +18,6 @@ #include <asm/tsc.h> #include "speedstep-lib.h" -#define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, \ - "speedstep-lib", msg) - #define PFX "speedstep-lib: " #ifdef CONFIG_X86_SPEEDSTEP_RELAXED_CAP_CHECK @@ -75,7 +72,7 @@ static unsigned int pentium3_get_frequency(enum speedstep_processor processor) /* read MSR 0x2a - we only need the low 32 bits */ rdmsr(MSR_IA32_EBL_CR_POWERON, msr_lo, msr_tmp); - dprintk("P3 - MSR_IA32_EBL_CR_POWERON: 0x%x 0x%x\n", msr_lo, msr_tmp); + pr_debug("P3 - MSR_IA32_EBL_CR_POWERON: 0x%x 0x%x\n", msr_lo, msr_tmp); msr_tmp = msr_lo; /* decode the FSB */ @@ -89,7 +86,7 @@ static unsigned int pentium3_get_frequency(enum speedstep_processor processor) /* decode the multiplier */ if (processor == SPEEDSTEP_CPU_PIII_C_EARLY) { - dprintk("workaround for early PIIIs\n"); + pr_debug("workaround for early PIIIs\n"); msr_lo &= 0x03c00000; } else msr_lo &= 0x0bc00000; @@ -100,7 +97,7 @@ static unsigned int pentium3_get_frequency(enum speedstep_processor processor) j++; } - dprintk("speed is %u\n", + pr_debug("speed is %u\n", (msr_decode_mult[j].ratio * msr_decode_fsb[i].value * 100)); return msr_decode_mult[j].ratio * msr_decode_fsb[i].value * 100; @@ -112,7 +109,7 @@ static unsigned int pentiumM_get_frequency(void) u32 msr_lo, msr_tmp; rdmsr(MSR_IA32_EBL_CR_POWERON, msr_lo, msr_tmp); - dprintk("PM - MSR_IA32_EBL_CR_POWERON: 0x%x 0x%x\n", msr_lo, msr_tmp); + pr_debug("PM - MSR_IA32_EBL_CR_POWERON: 0x%x 0x%x\n", msr_lo, msr_tmp); /* see table B-2 of 24547212.pdf */ if (msr_lo & 0x00040000) { @@ -122,7 +119,7 @@ static unsigned int pentiumM_get_frequency(void) } msr_tmp = (msr_lo >> 22) & 0x1f; - dprintk("bits 22-26 are 0x%x, speed is %u\n", + pr_debug("bits 22-26 are 0x%x, speed is %u\n", msr_tmp, (msr_tmp * 100 * 1000)); return msr_tmp * 100 * 1000; @@ -160,11 +157,11 @@ static unsigned int pentium_core_get_frequency(void) } rdmsr(MSR_IA32_EBL_CR_POWERON, msr_lo, msr_tmp); - dprintk("PCORE - MSR_IA32_EBL_CR_POWERON: 0x%x 0x%x\n", + pr_debug("PCORE - MSR_IA32_EBL_CR_POWERON: 0x%x 0x%x\n", msr_lo, msr_tmp); msr_tmp = (msr_lo >> 22) & 0x1f; - dprintk("bits 22-26 are 0x%x, speed is %u\n", + pr_debug("bits 22-26 are 0x%x, speed is %u\n", msr_tmp, (msr_tmp * fsb)); ret = (msr_tmp * fsb); @@ -190,7 +187,7 @@ static unsigned int pentium4_get_frequency(void) rdmsr(0x2c, msr_lo, msr_hi); - dprintk("P4 - MSR_EBC_FREQUENCY_ID: 0x%x 0x%x\n", msr_lo, msr_hi); + pr_debug("P4 - MSR_EBC_FREQUENCY_ID: 0x%x 0x%x\n", msr_lo, msr_hi); /* decode the FSB: see IA-32 Intel (C) Architecture Software * Developer's Manual, Volume 3: System Prgramming Guide, @@ -217,7 +214,7 @@ static unsigned int pentium4_get_frequency(void) /* Multiplier. */ mult = msr_lo >> 24; - dprintk("P4 - FSB %u kHz; Multiplier %u; Speed %u kHz\n", + pr_debug("P4 - FSB %u kHz; Multiplier %u; Speed %u kHz\n", fsb, mult, (fsb * mult)); ret = (fsb * mult); @@ -257,7 +254,7 @@ unsigned int speedstep_detect_processor(void) struct cpuinfo_x86 *c = &cpu_data(0); u32 ebx, msr_lo, msr_hi; - dprintk("x86: %x, model: %x\n", c->x86, c->x86_model); + pr_debug("x86: %x, model: %x\n", c->x86, c->x86_model); if ((c->x86_vendor != X86_VENDOR_INTEL) || ((c->x86 != 6) && (c->x86 != 0xF))) @@ -272,7 +269,7 @@ unsigned int speedstep_detect_processor(void) ebx = cpuid_ebx(0x00000001); ebx &= 0x000000FF; - dprintk("ebx value is %x, x86_mask is %x\n", ebx, c->x86_mask); + pr_debug("ebx value is %x, x86_mask is %x\n", ebx, c->x86_mask); switch (c->x86_mask) { case 4: @@ -327,7 +324,7 @@ unsigned int speedstep_detect_processor(void) /* cpuid_ebx(1) is 0x04 for desktop PIII, * 0x06 for mobile PIII-M */ ebx = cpuid_ebx(0x00000001); - dprintk("ebx is %x\n", ebx); + pr_debug("ebx is %x\n", ebx); ebx &= 0x000000FF; @@ -344,7 +341,7 @@ unsigned int speedstep_detect_processor(void) /* all mobile PIII Coppermines have FSB 100 MHz * ==> sort out a few desktop PIIIs. */ rdmsr(MSR_IA32_EBL_CR_POWERON, msr_lo, msr_hi); - dprintk("Coppermine: MSR_IA32_EBL_CR_POWERON is 0x%x, 0x%x\n", + pr_debug("Coppermine: MSR_IA32_EBL_CR_POWERON is 0x%x, 0x%x\n", msr_lo, msr_hi); msr_lo &= 0x00c0000; if (msr_lo != 0x0080000) @@ -357,12 +354,12 @@ unsigned int speedstep_detect_processor(void) * bit 56 or 57 is set */ rdmsr(MSR_IA32_PLATFORM_ID, msr_lo, msr_hi); - dprintk("Coppermine: MSR_IA32_PLATFORM ID is 0x%x, 0x%x\n", + pr_debug("Coppermine: MSR_IA32_PLATFORM ID is 0x%x, 0x%x\n", msr_lo, msr_hi); if ((msr_hi & (1<<18)) && (relaxed_check ? 1 : (msr_hi & (3<<24)))) { if (c->x86_mask == 0x01) { - dprintk("early PIII version\n"); + pr_debug("early PIII version\n"); return SPEEDSTEP_CPU_PIII_C_EARLY; } else return SPEEDSTEP_CPU_PIII_C; @@ -393,14 +390,14 @@ unsigned int speedstep_get_freqs(enum speedstep_processor processor, if ((!processor) || (!low_speed) || (!high_speed) || (!set_state)) return -EINVAL; - dprintk("trying to determine both speeds\n"); + pr_debug("trying to determine both speeds\n"); /* get current speed */ prev_speed = speedstep_get_frequency(processor); if (!prev_speed) return -EIO; - dprintk("previous speed is %u\n", prev_speed); + pr_debug("previous speed is %u\n", prev_speed); local_irq_save(flags); @@ -412,7 +409,7 @@ unsigned int speedstep_get_freqs(enum speedstep_processor processor, goto out; } - dprintk("low speed is %u\n", *low_speed); + pr_debug("low speed is %u\n", *low_speed); /* start latency measurement */ if (transition_latency) @@ -431,7 +428,7 @@ unsigned int speedstep_get_freqs(enum speedstep_processor processor, goto out; } - dprintk("high speed is %u\n", *high_speed); + pr_debug("high speed is %u\n", *high_speed); if (*low_speed == *high_speed) { ret = -ENODEV; @@ -445,7 +442,7 @@ unsigned int speedstep_get_freqs(enum speedstep_processor processor, if (transition_latency) { *transition_latency = (tv2.tv_sec - tv1.tv_sec) * USEC_PER_SEC + tv2.tv_usec - tv1.tv_usec; - dprintk("transition latency is %u uSec\n", *transition_latency); + pr_debug("transition latency is %u uSec\n", *transition_latency); /* convert uSec to nSec and add 20% for safety reasons */ *transition_latency *= 1200; diff --git a/arch/x86/kernel/cpu/cpufreq/speedstep-lib.h b/drivers/cpufreq/speedstep-lib.h index 70d9cea1219..70d9cea1219 100644 --- a/arch/x86/kernel/cpu/cpufreq/speedstep-lib.h +++ b/drivers/cpufreq/speedstep-lib.h diff --git a/arch/x86/kernel/cpu/cpufreq/speedstep-smi.c b/drivers/cpufreq/speedstep-smi.c index 91bc25b67bc..c76ead3490b 100644 --- a/arch/x86/kernel/cpu/cpufreq/speedstep-smi.c +++ b/drivers/cpufreq/speedstep-smi.c @@ -55,9 +55,6 @@ static struct cpufreq_frequency_table speedstep_freqs[] = { * of DMA activity going on? */ #define SMI_TRIES 5 -#define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, \ - "speedstep-smi", msg) - /** * speedstep_smi_ownership */ @@ -70,7 +67,7 @@ static int speedstep_smi_ownership(void) command = (smi_sig & 0xffffff00) | (smi_cmd & 0xff); magic = virt_to_phys(magic_data); - dprintk("trying to obtain ownership with command %x at port %x\n", + pr_debug("trying to obtain ownership with command %x at port %x\n", command, smi_port); __asm__ __volatile__( @@ -85,7 +82,7 @@ static int speedstep_smi_ownership(void) : "memory" ); - dprintk("result is %x\n", result); + pr_debug("result is %x\n", result); return result; } @@ -106,13 +103,13 @@ static int speedstep_smi_get_freqs(unsigned int *low, unsigned int *high) u32 function = GET_SPEEDSTEP_FREQS; if (!(ist_info.event & 0xFFFF)) { - dprintk("bug #1422 -- can't read freqs from BIOS\n"); + pr_debug("bug #1422 -- can't read freqs from BIOS\n"); return -ENODEV; } command = (smi_sig & 0xffffff00) | (smi_cmd & 0xff); - dprintk("trying to determine frequencies with command %x at port %x\n", + pr_debug("trying to determine frequencies with command %x at port %x\n", command, smi_port); __asm__ __volatile__( @@ -129,7 +126,7 @@ static int speedstep_smi_get_freqs(unsigned int *low, unsigned int *high) "d" (smi_port), "S" (0), "D" (0) ); - dprintk("result %x, low_freq %u, high_freq %u\n", + pr_debug("result %x, low_freq %u, high_freq %u\n", result, low_mhz, high_mhz); /* abort if results are obviously incorrect... */ @@ -154,7 +151,7 @@ static int speedstep_get_state(void) command = (smi_sig & 0xffffff00) | (smi_cmd & 0xff); - dprintk("trying to determine current setting with command %x " + pr_debug("trying to determine current setting with command %x " "at port %x\n", command, smi_port); __asm__ __volatile__( @@ -168,7 +165,7 @@ static int speedstep_get_state(void) "d" (smi_port), "S" (0), "D" (0) ); - dprintk("state is %x, result is %x\n", state, result); + pr_debug("state is %x, result is %x\n", state, result); return state & 1; } @@ -194,13 +191,13 @@ static void speedstep_set_state(unsigned int state) command = (smi_sig & 0xffffff00) | (smi_cmd & 0xff); - dprintk("trying to set frequency to state %u " + pr_debug("trying to set frequency to state %u " "with command %x at port %x\n", state, command, smi_port); do { if (retry) { - dprintk("retry %u, previous result %u, waiting...\n", + pr_debug("retry %u, previous result %u, waiting...\n", retry, result); mdelay(retry * 50); } @@ -221,7 +218,7 @@ static void speedstep_set_state(unsigned int state) local_irq_restore(flags); if (new_state == state) - dprintk("change to %u MHz succeeded after %u tries " + pr_debug("change to %u MHz succeeded after %u tries " "with result %u\n", (speedstep_freqs[new_state].frequency / 1000), retry, result); @@ -292,7 +289,7 @@ static int speedstep_cpu_init(struct cpufreq_policy *policy) result = speedstep_smi_ownership(); if (result) { - dprintk("fails in acquiring ownership of a SMI interface.\n"); + pr_debug("fails in acquiring ownership of a SMI interface.\n"); return -EINVAL; } @@ -304,7 +301,7 @@ static int speedstep_cpu_init(struct cpufreq_policy *policy) if (result) { /* fall back to speedstep_lib.c dection mechanism: * try both states out */ - dprintk("could not detect low and high frequencies " + pr_debug("could not detect low and high frequencies " "by SMI call.\n"); result = speedstep_get_freqs(speedstep_processor, low, high, @@ -312,18 +309,18 @@ static int speedstep_cpu_init(struct cpufreq_policy *policy) &speedstep_set_state); if (result) { - dprintk("could not detect two different speeds" + pr_debug("could not detect two different speeds" " -- aborting.\n"); return result; } else - dprintk("workaround worked.\n"); + pr_debug("workaround worked.\n"); } /* get current speed setting */ state = speedstep_get_state(); speed = speedstep_freqs[state].frequency; - dprintk("currently at %s speed setting - %i MHz\n", + pr_debug("currently at %s speed setting - %i MHz\n", (speed == speedstep_freqs[SPEEDSTEP_LOW].frequency) ? "low" : "high", (speed / 1000)); @@ -360,7 +357,7 @@ static int speedstep_resume(struct cpufreq_policy *policy) int result = speedstep_smi_ownership(); if (result) - dprintk("fails in re-acquiring ownership of a SMI interface.\n"); + pr_debug("fails in re-acquiring ownership of a SMI interface.\n"); return result; } @@ -403,12 +400,12 @@ static int __init speedstep_init(void) } if (!speedstep_processor) { - dprintk("No supported Intel CPU detected.\n"); + pr_debug("No supported Intel CPU detected.\n"); return -ENODEV; } - dprintk("signature:0x%.8lx, command:0x%.8lx, " - "event:0x%.8lx, perf_level:0x%.8lx.\n", + pr_debug("signature:0x%.8ulx, command:0x%.8ulx, " + "event:0x%.8ulx, perf_level:0x%.8ulx.\n", ist_info.signature, ist_info.command, ist_info.event, ist_info.perf_level); diff --git a/drivers/edac/ppc4xx_edac.c b/drivers/edac/ppc4xx_edac.c index c1f0045ceb8..af8e7b1aa29 100644 --- a/drivers/edac/ppc4xx_edac.c +++ b/drivers/edac/ppc4xx_edac.c @@ -1019,7 +1019,7 @@ ppc4xx_edac_mc_init(struct mem_ctl_info *mci, struct ppc4xx_edac_pdata *pdata = NULL; const struct device_node *np = op->dev.of_node; - if (op->dev.of_match == NULL) + if (of_match_device(ppc4xx_edac_match, &op->dev) == NULL) return -EINVAL; /* Initial driver pointers and private data */ diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c index f903d7b6f34..23d1468ad25 100644 --- a/drivers/firewire/ohci.c +++ b/drivers/firewire/ohci.c @@ -2199,7 +2199,6 @@ static int ohci_set_config_rom(struct fw_card *card, { struct fw_ohci *ohci; unsigned long flags; - int ret = -EBUSY; __be32 *next_config_rom; dma_addr_t uninitialized_var(next_config_rom_bus); @@ -2240,22 +2239,37 @@ static int ohci_set_config_rom(struct fw_card *card, spin_lock_irqsave(&ohci->lock, flags); + /* + * If there is not an already pending config_rom update, + * push our new allocation into the ohci->next_config_rom + * and then mark the local variable as null so that we + * won't deallocate the new buffer. + * + * OTOH, if there is a pending config_rom update, just + * use that buffer with the new config_rom data, and + * let this routine free the unused DMA allocation. + */ + if (ohci->next_config_rom == NULL) { ohci->next_config_rom = next_config_rom; ohci->next_config_rom_bus = next_config_rom_bus; + next_config_rom = NULL; + } - copy_config_rom(ohci->next_config_rom, config_rom, length); + copy_config_rom(ohci->next_config_rom, config_rom, length); - ohci->next_header = config_rom[0]; - ohci->next_config_rom[0] = 0; + ohci->next_header = config_rom[0]; + ohci->next_config_rom[0] = 0; - reg_write(ohci, OHCI1394_ConfigROMmap, - ohci->next_config_rom_bus); - ret = 0; - } + reg_write(ohci, OHCI1394_ConfigROMmap, ohci->next_config_rom_bus); spin_unlock_irqrestore(&ohci->lock, flags); + /* If we didn't use the DMA allocation, delete it. */ + if (next_config_rom != NULL) + dma_free_coherent(ohci->card.device, CONFIG_ROM_SIZE, + next_config_rom, next_config_rom_bus); + /* * Now initiate a bus reset to have the changes take * effect. We clean up the old config rom memory and DMA @@ -2263,13 +2277,10 @@ static int ohci_set_config_rom(struct fw_card *card, * controller could need to access it before the bus reset * takes effect. */ - if (ret == 0) - fw_schedule_bus_reset(&ohci->card, true, true); - else - dma_free_coherent(ohci->card.device, CONFIG_ROM_SIZE, - next_config_rom, next_config_rom_bus); - return ret; + fw_schedule_bus_reset(&ohci->card, true, true); + + return 0; } static void ohci_send_request(struct fw_card *card, struct fw_packet *packet) diff --git a/drivers/firmware/edd.c b/drivers/firmware/edd.c index 96c25d93eed..f1b7f659d3c 100644 --- a/drivers/firmware/edd.c +++ b/drivers/firmware/edd.c @@ -531,8 +531,8 @@ static int edd_has_edd30(struct edd_device *edev) { struct edd_info *info; - int i, nonzero_path = 0; - char c; + int i; + u8 csum = 0; if (!edev) return 0; @@ -544,16 +544,16 @@ edd_has_edd30(struct edd_device *edev) return 0; } - for (i = 30; i <= 73; i++) { - c = *(((uint8_t *) info) + i + 4); - if (c) { - nonzero_path++; - break; - } - } - if (!nonzero_path) { + + /* We support only T13 spec */ + if (info->params.device_path_info_length != 44) + return 0; + + for (i = 30; i < info->params.device_path_info_length + 30; i++) + csum += *(((u8 *)&info->params) + i); + + if (csum) return 0; - } return 1; } diff --git a/drivers/firmware/iscsi_ibft_find.c b/drivers/firmware/iscsi_ibft_find.c index 2192456dfd6..f032e446fc1 100644 --- a/drivers/firmware/iscsi_ibft_find.c +++ b/drivers/firmware/iscsi_ibft_find.c @@ -42,7 +42,20 @@ struct acpi_table_ibft *ibft_addr; EXPORT_SYMBOL_GPL(ibft_addr); -#define IBFT_SIGN "iBFT" +static const struct { + char *sign; +} ibft_signs[] = { +#ifdef CONFIG_ACPI + /* + * One spec says "IBFT", the other says "iBFT". We have to check + * for both. + */ + { ACPI_SIG_IBFT }, +#endif + { "iBFT" }, + { "BIFT" }, /* Broadcom iSCSI Offload */ +}; + #define IBFT_SIGN_LEN 4 #define IBFT_START 0x80000 /* 512kB */ #define IBFT_END 0x100000 /* 1MB */ @@ -62,6 +75,7 @@ static int __init find_ibft_in_mem(void) unsigned long pos; unsigned int len = 0; void *virt; + int i; for (pos = IBFT_START; pos < IBFT_END; pos += 16) { /* The table can't be inside the VGA BIOS reserved space, @@ -69,18 +83,23 @@ static int __init find_ibft_in_mem(void) if (pos == VGA_MEM) pos += VGA_SIZE; virt = isa_bus_to_virt(pos); - if (memcmp(virt, IBFT_SIGN, IBFT_SIGN_LEN) == 0) { - unsigned long *addr = - (unsigned long *)isa_bus_to_virt(pos + 4); - len = *addr; - /* if the length of the table extends past 1M, - * the table cannot be valid. */ - if (pos + len <= (IBFT_END-1)) { - ibft_addr = (struct acpi_table_ibft *)virt; - break; + + for (i = 0; i < ARRAY_SIZE(ibft_signs); i++) { + if (memcmp(virt, ibft_signs[i].sign, IBFT_SIGN_LEN) == + 0) { + unsigned long *addr = + (unsigned long *)isa_bus_to_virt(pos + 4); + len = *addr; + /* if the length of the table extends past 1M, + * the table cannot be valid. */ + if (pos + len <= (IBFT_END-1)) { + ibft_addr = (struct acpi_table_ibft *)virt; + goto done; + } } } } +done: return len; } /* @@ -89,18 +108,12 @@ static int __init find_ibft_in_mem(void) */ unsigned long __init find_ibft_region(unsigned long *sizep) { - + int i; ibft_addr = NULL; #ifdef CONFIG_ACPI - /* - * One spec says "IBFT", the other says "iBFT". We have to check - * for both. - */ - if (!ibft_addr) - acpi_table_parse(ACPI_SIG_IBFT, acpi_find_ibft); - if (!ibft_addr) - acpi_table_parse(IBFT_SIGN, acpi_find_ibft); + for (i = 0; i < ARRAY_SIZE(ibft_signs) && !ibft_addr; i++) + acpi_table_parse(ibft_signs[i].sign, acpi_find_ibft); #endif /* CONFIG_ACPI */ /* iBFT 1.03 section 1.4.3.1 mandates that UEFI machines will diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index 11d7a72c22d..140b9525b48 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -1516,17 +1516,33 @@ bool drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel) } EXPORT_SYMBOL(drm_fb_helper_initial_config); -bool drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper) +/** + * drm_fb_helper_hotplug_event - respond to a hotplug notification by + * probing all the outputs attached to the fb. + * @fb_helper: the drm_fb_helper + * + * LOCKING: + * Called at runtime, must take mode config lock. + * + * Scan the connectors attached to the fb_helper and try to put together a + * setup after *notification of a change in output configuration. + * + * RETURNS: + * 0 on success and a non-zero error code otherwise. + */ +int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper) { + struct drm_device *dev = fb_helper->dev; int count = 0; u32 max_width, max_height, bpp_sel; bool bound = false, crtcs_bound = false; struct drm_crtc *crtc; if (!fb_helper->fb) - return false; + return 0; - list_for_each_entry(crtc, &fb_helper->dev->mode_config.crtc_list, head) { + mutex_lock(&dev->mode_config.mutex); + list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { if (crtc->fb) crtcs_bound = true; if (crtc->fb == fb_helper->fb) @@ -1535,7 +1551,8 @@ bool drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper) if (!bound && crtcs_bound) { fb_helper->delayed_hotplug = true; - return false; + mutex_unlock(&dev->mode_config.mutex); + return 0; } DRM_DEBUG_KMS("\n"); @@ -1546,6 +1563,7 @@ bool drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper) count = drm_fb_helper_probe_connector_modes(fb_helper, max_width, max_height); drm_setup_crtcs(fb_helper); + mutex_unlock(&dev->mode_config.mutex); return drm_fb_helper_single_fb_probe(fb_helper, bpp_sel); } diff --git a/drivers/gpu/drm/drm_mm.c b/drivers/gpu/drm/drm_mm.c index 5d00b0fc0d9..959186cbf32 100644 --- a/drivers/gpu/drm/drm_mm.c +++ b/drivers/gpu/drm/drm_mm.c @@ -431,7 +431,7 @@ EXPORT_SYMBOL(drm_mm_search_free_in_range); void drm_mm_replace_node(struct drm_mm_node *old, struct drm_mm_node *new) { list_replace(&old->node_list, &new->node_list); - list_replace(&old->node_list, &new->hole_stack); + list_replace(&old->hole_stack, &new->hole_stack); new->hole_follows = old->hole_follows; new->mm = old->mm; new->start = old->start; @@ -699,8 +699,8 @@ int drm_mm_dump_table(struct seq_file *m, struct drm_mm *mm) entry->size); total_used += entry->size; if (entry->hole_follows) { - hole_start = drm_mm_hole_node_start(&mm->head_node); - hole_end = drm_mm_hole_node_end(&mm->head_node); + hole_start = drm_mm_hole_node_start(entry); + hole_end = drm_mm_hole_node_end(entry); hole_size = hole_end - hole_start; seq_printf(m, "0x%08lx-0x%08lx: 0x%08lx: free\n", hole_start, hole_end, hole_size); diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index c34a8dd31d0..32d1b3e829c 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -49,7 +49,7 @@ module_param_named(panel_ignore_lid, i915_panel_ignore_lid, int, 0600); unsigned int i915_powersave = 1; module_param_named(powersave, i915_powersave, int, 0600); -unsigned int i915_semaphores = 1; +unsigned int i915_semaphores = 0; module_param_named(semaphores, i915_semaphores, int, 0600); unsigned int i915_enable_rc6 = 0; diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index e522c702b04..2166ee071dd 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -5605,9 +5605,9 @@ static int intel_crtc_clock_get(struct drm_device *dev, struct drm_crtc *crtc) intel_clock_t clock; if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0) - fp = FP0(pipe); + fp = I915_READ(FP0(pipe)); else - fp = FP1(pipe); + fp = I915_READ(FP1(pipe)); clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT; if (IS_PINEVIEW(dev)) { @@ -6579,8 +6579,10 @@ intel_user_framebuffer_create(struct drm_device *dev, return ERR_PTR(-ENOENT); intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL); - if (!intel_fb) + if (!intel_fb) { + drm_gem_object_unreference_unlocked(&obj->base); return ERR_PTR(-ENOMEM); + } ret = intel_framebuffer_init(dev, intel_fb, mode_cmd, obj); if (ret) { diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index cb8578b7e44..a4d80314e7f 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1470,7 +1470,8 @@ intel_dp_link_down(struct intel_dp *intel_dp) if (!HAS_PCH_CPT(dev) && I915_READ(intel_dp->output_reg) & DP_PIPEB_SELECT) { - struct intel_crtc *intel_crtc = to_intel_crtc(intel_dp->base.base.crtc); + struct drm_crtc *crtc = intel_dp->base.base.crtc; + /* Hardware workaround: leaving our transcoder select * set to transcoder B while it's off will prevent the * corresponding HDMI output on transcoder A. @@ -1485,7 +1486,19 @@ intel_dp_link_down(struct intel_dp *intel_dp) /* Changes to enable or select take place the vblank * after being written. */ - intel_wait_for_vblank(dev, intel_crtc->pipe); + if (crtc == NULL) { + /* We can arrive here never having been attached + * to a CRTC, for instance, due to inheriting + * random state from the BIOS. + * + * If the pipe is not running, play safe and + * wait for the clocks to stabilise before + * continuing. + */ + POSTING_READ(intel_dp->output_reg); + msleep(50); + } else + intel_wait_for_vblank(dev, to_intel_crtc(crtc)->pipe); } I915_WRITE(intel_dp->output_reg, DP & ~DP_PORT_EN); diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c index a562bd2648c..67cb076d271 100644 --- a/drivers/gpu/drm/i915/intel_lvds.c +++ b/drivers/gpu/drm/i915/intel_lvds.c @@ -539,6 +539,9 @@ static int intel_lid_notify(struct notifier_block *nb, unsigned long val, struct drm_device *dev = dev_priv->dev; struct drm_connector *connector = dev_priv->int_lvds_connector; + if (dev->switch_power_state != DRM_SWITCH_POWER_ON) + return NOTIFY_OK; + /* * check and update the status of LVDS connector after receiving * the LID nofication event. diff --git a/drivers/gpu/drm/nouveau/nouveau_mem.c b/drivers/gpu/drm/nouveau/nouveau_mem.c index 5045f8b921d..c3e953b0899 100644 --- a/drivers/gpu/drm/nouveau/nouveau_mem.c +++ b/drivers/gpu/drm/nouveau/nouveau_mem.c @@ -152,8 +152,6 @@ nouveau_mem_vram_fini(struct drm_device *dev) { struct drm_nouveau_private *dev_priv = dev->dev_private; - nouveau_bo_ref(NULL, &dev_priv->vga_ram); - ttm_bo_device_release(&dev_priv->ttm.bdev); nouveau_ttm_global_release(dev_priv); diff --git a/drivers/gpu/drm/nouveau/nouveau_sgdma.c b/drivers/gpu/drm/nouveau/nouveau_sgdma.c index 4bce801bc58..c77111eca6a 100644 --- a/drivers/gpu/drm/nouveau/nouveau_sgdma.c +++ b/drivers/gpu/drm/nouveau/nouveau_sgdma.c @@ -42,7 +42,8 @@ nouveau_sgdma_populate(struct ttm_backend *be, unsigned long num_pages, nvbe->nr_pages = 0; while (num_pages--) { - if (dma_addrs[nvbe->nr_pages] != DMA_ERROR_CODE) { + /* this code path isn't called and is incorrect anyways */ + if (0) { /*dma_addrs[nvbe->nr_pages] != DMA_ERROR_CODE)*/ nvbe->pages[nvbe->nr_pages] = dma_addrs[nvbe->nr_pages]; nvbe->ttm_alloced[nvbe->nr_pages] = true; diff --git a/drivers/gpu/drm/nouveau/nouveau_state.c b/drivers/gpu/drm/nouveau/nouveau_state.c index a30adec5bea..915fbce8959 100644 --- a/drivers/gpu/drm/nouveau/nouveau_state.c +++ b/drivers/gpu/drm/nouveau/nouveau_state.c @@ -768,6 +768,11 @@ static void nouveau_card_takedown(struct drm_device *dev) engine->mc.takedown(dev); engine->display.late_takedown(dev); + if (dev_priv->vga_ram) { + nouveau_bo_unpin(dev_priv->vga_ram); + nouveau_bo_ref(NULL, &dev_priv->vga_ram); + } + mutex_lock(&dev->struct_mutex); ttm_bo_clean_mm(&dev_priv->ttm.bdev, TTM_PL_VRAM); ttm_bo_clean_mm(&dev_priv->ttm.bdev, TTM_PL_TT); diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index c20eac3379e..9073e3bfb08 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -1780,7 +1780,10 @@ static void evergreen_gpu_init(struct radeon_device *rdev) mc_shared_chmap = RREG32(MC_SHARED_CHMAP); - mc_arb_ramcfg = RREG32(MC_ARB_RAMCFG); + if (rdev->flags & RADEON_IS_IGP) + mc_arb_ramcfg = RREG32(FUS_MC_ARB_RAMCFG); + else + mc_arb_ramcfg = RREG32(MC_ARB_RAMCFG); switch (rdev->config.evergreen.max_tile_pipes) { case 1: diff --git a/drivers/gpu/drm/radeon/evergreend.h b/drivers/gpu/drm/radeon/evergreend.h index 94533849927..fc40e0cc345 100644 --- a/drivers/gpu/drm/radeon/evergreend.h +++ b/drivers/gpu/drm/radeon/evergreend.h @@ -200,6 +200,7 @@ #define BURSTLENGTH_SHIFT 9 #define BURSTLENGTH_MASK 0x00000200 #define CHANSIZE_OVERRIDE (1 << 11) +#define FUS_MC_ARB_RAMCFG 0x2768 #define MC_VM_AGP_TOP 0x2028 #define MC_VM_AGP_BOT 0x202C #define MC_VM_AGP_BASE 0x2030 diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c index 7aade20f63a..3d8a7634bbe 100644 --- a/drivers/gpu/drm/radeon/ni.c +++ b/drivers/gpu/drm/radeon/ni.c @@ -674,7 +674,7 @@ static void cayman_gpu_init(struct radeon_device *rdev) cc_rb_backend_disable = RREG32(CC_RB_BACKEND_DISABLE); cc_gc_shader_pipe_config = RREG32(CC_GC_SHADER_PIPE_CONFIG); - cgts_tcc_disable = RREG32(CGTS_TCC_DISABLE); + cgts_tcc_disable = 0xff000000; gc_user_rb_backend_disable = RREG32(GC_USER_RB_BACKEND_DISABLE); gc_user_shader_pipe_config = RREG32(GC_USER_SHADER_PIPE_CONFIG); cgts_user_tcc_disable = RREG32(CGTS_USER_TCC_DISABLE); @@ -871,7 +871,7 @@ static void cayman_gpu_init(struct radeon_device *rdev) smx_dc_ctl0 = RREG32(SMX_DC_CTL0); smx_dc_ctl0 &= ~NUMBER_OF_SETS(0x1ff); - smx_dc_ctl0 |= NUMBER_OF_SETS(rdev->config.evergreen.sx_num_of_sets); + smx_dc_ctl0 |= NUMBER_OF_SETS(rdev->config.cayman.sx_num_of_sets); WREG32(SMX_DC_CTL0, smx_dc_ctl0); WREG32(SPI_CONFIG_CNTL_1, VTX_DONE_DELAY(4) | CRC_SIMD_ID_WADDR_DISABLE); @@ -887,20 +887,20 @@ static void cayman_gpu_init(struct radeon_device *rdev) WREG32(TA_CNTL_AUX, DISABLE_CUBE_ANISO); - WREG32(SX_EXPORT_BUFFER_SIZES, (COLOR_BUFFER_SIZE((rdev->config.evergreen.sx_max_export_size / 4) - 1) | - POSITION_BUFFER_SIZE((rdev->config.evergreen.sx_max_export_pos_size / 4) - 1) | - SMX_BUFFER_SIZE((rdev->config.evergreen.sx_max_export_smx_size / 4) - 1))); + WREG32(SX_EXPORT_BUFFER_SIZES, (COLOR_BUFFER_SIZE((rdev->config.cayman.sx_max_export_size / 4) - 1) | + POSITION_BUFFER_SIZE((rdev->config.cayman.sx_max_export_pos_size / 4) - 1) | + SMX_BUFFER_SIZE((rdev->config.cayman.sx_max_export_smx_size / 4) - 1))); - WREG32(PA_SC_FIFO_SIZE, (SC_PRIM_FIFO_SIZE(rdev->config.evergreen.sc_prim_fifo_size) | - SC_HIZ_TILE_FIFO_SIZE(rdev->config.evergreen.sc_hiz_tile_fifo_size) | - SC_EARLYZ_TILE_FIFO_SIZE(rdev->config.evergreen.sc_earlyz_tile_fifo_size))); + WREG32(PA_SC_FIFO_SIZE, (SC_PRIM_FIFO_SIZE(rdev->config.cayman.sc_prim_fifo_size) | + SC_HIZ_TILE_FIFO_SIZE(rdev->config.cayman.sc_hiz_tile_fifo_size) | + SC_EARLYZ_TILE_FIFO_SIZE(rdev->config.cayman.sc_earlyz_tile_fifo_size))); WREG32(VGT_NUM_INSTANCES, 1); WREG32(CP_PERFMON_CNTL, 0); - WREG32(SQ_MS_FIFO_SIZES, (CACHE_FIFO_SIZE(16 * rdev->config.evergreen.sq_num_cf_insts) | + WREG32(SQ_MS_FIFO_SIZES, (CACHE_FIFO_SIZE(16 * rdev->config.cayman.sq_num_cf_insts) | FETCH_FIFO_HIWATER(0x4) | DONE_FIFO_HIWATER(0xe0) | ALU_UPDATE_FIFO_HIWATER(0x8))); diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c index f116516bfef..90dfb2b8cf0 100644 --- a/drivers/gpu/drm/radeon/radeon_atombios.c +++ b/drivers/gpu/drm/radeon/radeon_atombios.c @@ -431,7 +431,7 @@ static bool radeon_atom_apply_quirks(struct drm_device *dev, } } - /* Acer laptop (Acer TravelMate 5730G) has an HDMI port + /* Acer laptop (Acer TravelMate 5730/5730G) has an HDMI port * on the laptop and a DVI port on the docking station and * both share the same encoder, hpd pin, and ddc line. * So while the bios table is technically correct, @@ -440,7 +440,7 @@ static bool radeon_atom_apply_quirks(struct drm_device *dev, * with different crtcs which isn't possible on the hardware * side and leaves no crtcs for LVDS or VGA. */ - if ((dev->pdev->device == 0x95c4) && + if (((dev->pdev->device == 0x95c4) || (dev->pdev->device == 0x9591)) && (dev->pdev->subsystem_vendor == 0x1025) && (dev->pdev->subsystem_device == 0x013c)) { if ((*connector_type == DRM_MODE_CONNECTOR_DVII) && @@ -1574,9 +1574,17 @@ struct radeon_encoder_atom_dig *radeon_atombios_get_lvds_info(struct ATOM_FAKE_EDID_PATCH_RECORD *fake_edid_record; ATOM_PANEL_RESOLUTION_PATCH_RECORD *panel_res_record; bool bad_record = false; - u8 *record = (u8 *)(mode_info->atom_context->bios + - data_offset + - le16_to_cpu(lvds_info->info.usModePatchTableOffset)); + u8 *record; + + if ((frev == 1) && (crev < 2)) + /* absolute */ + record = (u8 *)(mode_info->atom_context->bios + + le16_to_cpu(lvds_info->info.usModePatchTableOffset)); + else + /* relative */ + record = (u8 *)(mode_info->atom_context->bios + + data_offset + + le16_to_cpu(lvds_info->info.usModePatchTableOffset)); while (*record != ATOM_RECORD_END_TYPE) { switch (*record) { case LCD_MODE_PATCH_RECORD_MODE_TYPE: diff --git a/drivers/gpu/drm/radeon/radeon_atpx_handler.c b/drivers/gpu/drm/radeon/radeon_atpx_handler.c index ed5dfe58f29..9d95792bea3 100644 --- a/drivers/gpu/drm/radeon/radeon_atpx_handler.c +++ b/drivers/gpu/drm/radeon/radeon_atpx_handler.c @@ -15,6 +15,9 @@ #define ATPX_VERSION 0 #define ATPX_GPU_PWR 2 #define ATPX_MUX_SELECT 3 +#define ATPX_I2C_MUX_SELECT 4 +#define ATPX_SWITCH_START 5 +#define ATPX_SWITCH_END 6 #define ATPX_INTEGRATED 0 #define ATPX_DISCRETE 1 @@ -149,13 +152,35 @@ static int radeon_atpx_switch_mux(acpi_handle handle, int mux_id) return radeon_atpx_execute(handle, ATPX_MUX_SELECT, mux_id); } +static int radeon_atpx_switch_i2c_mux(acpi_handle handle, int mux_id) +{ + return radeon_atpx_execute(handle, ATPX_I2C_MUX_SELECT, mux_id); +} + +static int radeon_atpx_switch_start(acpi_handle handle, int gpu_id) +{ + return radeon_atpx_execute(handle, ATPX_SWITCH_START, gpu_id); +} + +static int radeon_atpx_switch_end(acpi_handle handle, int gpu_id) +{ + return radeon_atpx_execute(handle, ATPX_SWITCH_END, gpu_id); +} static int radeon_atpx_switchto(enum vga_switcheroo_client_id id) { + int gpu_id; + if (id == VGA_SWITCHEROO_IGD) - radeon_atpx_switch_mux(radeon_atpx_priv.atpx_handle, 0); + gpu_id = ATPX_INTEGRATED; else - radeon_atpx_switch_mux(radeon_atpx_priv.atpx_handle, 1); + gpu_id = ATPX_DISCRETE; + + radeon_atpx_switch_start(radeon_atpx_priv.atpx_handle, gpu_id); + radeon_atpx_switch_mux(radeon_atpx_priv.atpx_handle, gpu_id); + radeon_atpx_switch_i2c_mux(radeon_atpx_priv.atpx_handle, gpu_id); + radeon_atpx_switch_end(radeon_atpx_priv.atpx_handle, gpu_id); + return 0; } diff --git a/drivers/gpu/drm/radeon/radeon_cursor.c b/drivers/gpu/drm/radeon/radeon_cursor.c index bdf2fa1189a..3189a7efb2e 100644 --- a/drivers/gpu/drm/radeon/radeon_cursor.c +++ b/drivers/gpu/drm/radeon/radeon_cursor.c @@ -167,9 +167,6 @@ int radeon_crtc_cursor_set(struct drm_crtc *crtc, return -EINVAL; } - radeon_crtc->cursor_width = width; - radeon_crtc->cursor_height = height; - obj = drm_gem_object_lookup(crtc->dev, file_priv, handle); if (!obj) { DRM_ERROR("Cannot find cursor object %x for crtc %d\n", handle, radeon_crtc->crtc_id); @@ -180,6 +177,9 @@ int radeon_crtc_cursor_set(struct drm_crtc *crtc, if (ret) goto fail; + radeon_crtc->cursor_width = width; + radeon_crtc->cursor_height = height; + radeon_lock_cursor(crtc, true); /* XXX only 27 bit offset for legacy cursor */ radeon_set_cursor(crtc, obj, gpu_addr); diff --git a/drivers/gpu/drm/radeon/radeon_gart.c b/drivers/gpu/drm/radeon/radeon_gart.c index 8a955bbdb60..a533f52fd16 100644 --- a/drivers/gpu/drm/radeon/radeon_gart.c +++ b/drivers/gpu/drm/radeon/radeon_gart.c @@ -181,9 +181,9 @@ int radeon_gart_bind(struct radeon_device *rdev, unsigned offset, p = t / (PAGE_SIZE / RADEON_GPU_PAGE_SIZE); for (i = 0; i < pages; i++, p++) { - /* On TTM path, we only use the DMA API if TTM_PAGE_FLAG_DMA32 - * is requested. */ - if (dma_addr[i] != DMA_ERROR_CODE) { + /* we reverted the patch using dma_addr in TTM for now but this + * code stops building on alpha so just comment it out for now */ + if (0) { /*dma_addr[i] != DMA_ERROR_CODE) */ rdev->gart.ttm_alloced[p] = true; rdev->gart.pages_addr[p] = dma_addr[i]; } else { diff --git a/drivers/gpu/drm/radeon/reg_srcs/cayman b/drivers/gpu/drm/radeon/reg_srcs/cayman index 6334f8ac120..0aa8e85a945 100644 --- a/drivers/gpu/drm/radeon/reg_srcs/cayman +++ b/drivers/gpu/drm/radeon/reg_srcs/cayman @@ -33,6 +33,7 @@ cayman 0x9400 0x00008E48 SQ_EX_ALLOC_TABLE_SLOTS 0x00009100 SPI_CONFIG_CNTL 0x0000913C SPI_CONFIG_CNTL_1 +0x00009508 TA_CNTL_AUX 0x00009830 DB_DEBUG 0x00009834 DB_DEBUG2 0x00009838 DB_DEBUG3 diff --git a/drivers/gpu/drm/radeon/reg_srcs/evergreen b/drivers/gpu/drm/radeon/reg_srcs/evergreen index 7e1637176e0..0e28cae7ea4 100644 --- a/drivers/gpu/drm/radeon/reg_srcs/evergreen +++ b/drivers/gpu/drm/radeon/reg_srcs/evergreen @@ -46,6 +46,7 @@ evergreen 0x9400 0x00008E48 SQ_EX_ALLOC_TABLE_SLOTS 0x00009100 SPI_CONFIG_CNTL 0x0000913C SPI_CONFIG_CNTL_1 +0x00009508 TA_CNTL_AUX 0x00009700 VC_CNTL 0x00009714 VC_ENHANCE 0x00009830 DB_DEBUG diff --git a/drivers/gpu/vga/vga_switcheroo.c b/drivers/gpu/vga/vga_switcheroo.c index e01cacba685..498b284e5ef 100644 --- a/drivers/gpu/vga/vga_switcheroo.c +++ b/drivers/gpu/vga/vga_switcheroo.c @@ -219,9 +219,6 @@ static int vga_switchto_stage1(struct vga_switcheroo_client *new_client) int i; struct vga_switcheroo_client *active = NULL; - if (new_client->active == true) - return 0; - for (i = 0; i < VGA_SWITCHEROO_MAX_CLIENTS; i++) { if (vgasr_priv.clients[i].active == true) { active = &vgasr_priv.clients[i]; @@ -372,6 +369,9 @@ vga_switcheroo_debugfs_write(struct file *filp, const char __user *ubuf, goto out; } + if (client->active == true) + goto out; + /* okay we want a switch - test if devices are willing to switch */ can_switch = true; for (i = 0; i < VGA_SWITCHEROO_MAX_CLIENTS; i++) { diff --git a/drivers/i2c/busses/i2c-mpc.c b/drivers/i2c/busses/i2c-mpc.c index 75b984c519a..107397a606b 100644 --- a/drivers/i2c/busses/i2c-mpc.c +++ b/drivers/i2c/busses/i2c-mpc.c @@ -560,15 +560,18 @@ static struct i2c_adapter mpc_ops = { .timeout = HZ, }; +static const struct of_device_id mpc_i2c_of_match[]; static int __devinit fsl_i2c_probe(struct platform_device *op) { + const struct of_device_id *match; struct mpc_i2c *i2c; const u32 *prop; u32 clock = MPC_I2C_CLOCK_LEGACY; int result = 0; int plen; - if (!op->dev.of_match) + match = of_match_device(mpc_i2c_of_match, &op->dev); + if (!match) return -EINVAL; i2c = kzalloc(sizeof(*i2c), GFP_KERNEL); @@ -605,8 +608,8 @@ static int __devinit fsl_i2c_probe(struct platform_device *op) clock = *prop; } - if (op->dev.of_match->data) { - struct mpc_i2c_data *data = op->dev.of_match->data; + if (match->data) { + struct mpc_i2c_data *data = match->data; data->setup(op->dev.of_node, i2c, clock, data->prescaler); } else { /* Backwards compatibility */ diff --git a/drivers/i2c/busses/i2c-pnx.c b/drivers/i2c/busses/i2c-pnx.c index a97e3fec814..04be9f82e14 100644 --- a/drivers/i2c/busses/i2c-pnx.c +++ b/drivers/i2c/busses/i2c-pnx.c @@ -65,7 +65,7 @@ static inline void i2c_pnx_arm_timer(struct i2c_pnx_algo_data *alg_data) jiffies, expires); timer->expires = jiffies + expires; - timer->data = (unsigned long)&alg_data; + timer->data = (unsigned long)alg_data; add_timer(timer); } diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index 5ed9d25d021..99dde874fbb 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -148,6 +148,7 @@ struct rdma_id_private { u32 qp_num; u8 srq; u8 tos; + u8 reuseaddr; }; struct cma_multicast { @@ -712,6 +713,21 @@ static inline int cma_any_addr(struct sockaddr *addr) return cma_zero_addr(addr) || cma_loopback_addr(addr); } +static int cma_addr_cmp(struct sockaddr *src, struct sockaddr *dst) +{ + if (src->sa_family != dst->sa_family) + return -1; + + switch (src->sa_family) { + case AF_INET: + return ((struct sockaddr_in *) src)->sin_addr.s_addr != + ((struct sockaddr_in *) dst)->sin_addr.s_addr; + default: + return ipv6_addr_cmp(&((struct sockaddr_in6 *) src)->sin6_addr, + &((struct sockaddr_in6 *) dst)->sin6_addr); + } +} + static inline __be16 cma_port(struct sockaddr *addr) { if (addr->sa_family == AF_INET) @@ -1564,50 +1580,6 @@ static void cma_listen_on_all(struct rdma_id_private *id_priv) mutex_unlock(&lock); } -int rdma_listen(struct rdma_cm_id *id, int backlog) -{ - struct rdma_id_private *id_priv; - int ret; - - id_priv = container_of(id, struct rdma_id_private, id); - if (id_priv->state == CMA_IDLE) { - ((struct sockaddr *) &id->route.addr.src_addr)->sa_family = AF_INET; - ret = rdma_bind_addr(id, (struct sockaddr *) &id->route.addr.src_addr); - if (ret) - return ret; - } - - if (!cma_comp_exch(id_priv, CMA_ADDR_BOUND, CMA_LISTEN)) - return -EINVAL; - - id_priv->backlog = backlog; - if (id->device) { - switch (rdma_node_get_transport(id->device->node_type)) { - case RDMA_TRANSPORT_IB: - ret = cma_ib_listen(id_priv); - if (ret) - goto err; - break; - case RDMA_TRANSPORT_IWARP: - ret = cma_iw_listen(id_priv, backlog); - if (ret) - goto err; - break; - default: - ret = -ENOSYS; - goto err; - } - } else - cma_listen_on_all(id_priv); - - return 0; -err: - id_priv->backlog = 0; - cma_comp_exch(id_priv, CMA_LISTEN, CMA_ADDR_BOUND); - return ret; -} -EXPORT_SYMBOL(rdma_listen); - void rdma_set_service_type(struct rdma_cm_id *id, int tos) { struct rdma_id_private *id_priv; @@ -2090,6 +2062,25 @@ err: } EXPORT_SYMBOL(rdma_resolve_addr); +int rdma_set_reuseaddr(struct rdma_cm_id *id, int reuse) +{ + struct rdma_id_private *id_priv; + unsigned long flags; + int ret; + + id_priv = container_of(id, struct rdma_id_private, id); + spin_lock_irqsave(&id_priv->lock, flags); + if (id_priv->state == CMA_IDLE) { + id_priv->reuseaddr = reuse; + ret = 0; + } else { + ret = -EINVAL; + } + spin_unlock_irqrestore(&id_priv->lock, flags); + return ret; +} +EXPORT_SYMBOL(rdma_set_reuseaddr); + static void cma_bind_port(struct rdma_bind_list *bind_list, struct rdma_id_private *id_priv) { @@ -2165,41 +2156,71 @@ retry: return -EADDRNOTAVAIL; } -static int cma_use_port(struct idr *ps, struct rdma_id_private *id_priv) +/* + * Check that the requested port is available. This is called when trying to + * bind to a specific port, or when trying to listen on a bound port. In + * the latter case, the provided id_priv may already be on the bind_list, but + * we still need to check that it's okay to start listening. + */ +static int cma_check_port(struct rdma_bind_list *bind_list, + struct rdma_id_private *id_priv, uint8_t reuseaddr) { struct rdma_id_private *cur_id; - struct sockaddr_in *sin, *cur_sin; - struct rdma_bind_list *bind_list; + struct sockaddr *addr, *cur_addr; struct hlist_node *node; + + addr = (struct sockaddr *) &id_priv->id.route.addr.src_addr; + if (cma_any_addr(addr) && !reuseaddr) + return -EADDRNOTAVAIL; + + hlist_for_each_entry(cur_id, node, &bind_list->owners, node) { + if (id_priv == cur_id) + continue; + + if ((cur_id->state == CMA_LISTEN) || + !reuseaddr || !cur_id->reuseaddr) { + cur_addr = (struct sockaddr *) &cur_id->id.route.addr.src_addr; + if (cma_any_addr(cur_addr)) + return -EADDRNOTAVAIL; + + if (!cma_addr_cmp(addr, cur_addr)) + return -EADDRINUSE; + } + } + return 0; +} + +static int cma_use_port(struct idr *ps, struct rdma_id_private *id_priv) +{ + struct rdma_bind_list *bind_list; unsigned short snum; + int ret; - sin = (struct sockaddr_in *) &id_priv->id.route.addr.src_addr; - snum = ntohs(sin->sin_port); + snum = ntohs(cma_port((struct sockaddr *) &id_priv->id.route.addr.src_addr)); if (snum < PROT_SOCK && !capable(CAP_NET_BIND_SERVICE)) return -EACCES; bind_list = idr_find(ps, snum); - if (!bind_list) - return cma_alloc_port(ps, id_priv, snum); - - /* - * We don't support binding to any address if anyone is bound to - * a specific address on the same port. - */ - if (cma_any_addr((struct sockaddr *) &id_priv->id.route.addr.src_addr)) - return -EADDRNOTAVAIL; - - hlist_for_each_entry(cur_id, node, &bind_list->owners, node) { - if (cma_any_addr((struct sockaddr *) &cur_id->id.route.addr.src_addr)) - return -EADDRNOTAVAIL; - - cur_sin = (struct sockaddr_in *) &cur_id->id.route.addr.src_addr; - if (sin->sin_addr.s_addr == cur_sin->sin_addr.s_addr) - return -EADDRINUSE; + if (!bind_list) { + ret = cma_alloc_port(ps, id_priv, snum); + } else { + ret = cma_check_port(bind_list, id_priv, id_priv->reuseaddr); + if (!ret) + cma_bind_port(bind_list, id_priv); } + return ret; +} - cma_bind_port(bind_list, id_priv); - return 0; +static int cma_bind_listen(struct rdma_id_private *id_priv) +{ + struct rdma_bind_list *bind_list = id_priv->bind_list; + int ret = 0; + + mutex_lock(&lock); + if (bind_list->owners.first->next) + ret = cma_check_port(bind_list, id_priv, 0); + mutex_unlock(&lock); + return ret; } static int cma_get_port(struct rdma_id_private *id_priv) @@ -2253,6 +2274,56 @@ static int cma_check_linklocal(struct rdma_dev_addr *dev_addr, return 0; } +int rdma_listen(struct rdma_cm_id *id, int backlog) +{ + struct rdma_id_private *id_priv; + int ret; + + id_priv = container_of(id, struct rdma_id_private, id); + if (id_priv->state == CMA_IDLE) { + ((struct sockaddr *) &id->route.addr.src_addr)->sa_family = AF_INET; + ret = rdma_bind_addr(id, (struct sockaddr *) &id->route.addr.src_addr); + if (ret) + return ret; + } + + if (!cma_comp_exch(id_priv, CMA_ADDR_BOUND, CMA_LISTEN)) + return -EINVAL; + + if (id_priv->reuseaddr) { + ret = cma_bind_listen(id_priv); + if (ret) + goto err; + } + + id_priv->backlog = backlog; + if (id->device) { + switch (rdma_node_get_transport(id->device->node_type)) { + case RDMA_TRANSPORT_IB: + ret = cma_ib_listen(id_priv); + if (ret) + goto err; + break; + case RDMA_TRANSPORT_IWARP: + ret = cma_iw_listen(id_priv, backlog); + if (ret) + goto err; + break; + default: + ret = -ENOSYS; + goto err; + } + } else + cma_listen_on_all(id_priv); + + return 0; +err: + id_priv->backlog = 0; + cma_comp_exch(id_priv, CMA_LISTEN, CMA_ADDR_BOUND); + return ret; +} +EXPORT_SYMBOL(rdma_listen); + int rdma_bind_addr(struct rdma_cm_id *id, struct sockaddr *addr) { struct rdma_id_private *id_priv; diff --git a/drivers/infiniband/core/iwcm.c b/drivers/infiniband/core/iwcm.c index 2a1e9ae134b..a9c042345c6 100644 --- a/drivers/infiniband/core/iwcm.c +++ b/drivers/infiniband/core/iwcm.c @@ -725,7 +725,7 @@ static int cm_conn_rep_handler(struct iwcm_id_private *cm_id_priv, */ clear_bit(IWCM_F_CONNECT_WAIT, &cm_id_priv->flags); BUG_ON(cm_id_priv->state != IW_CM_STATE_CONN_SENT); - if (iw_event->status == IW_CM_EVENT_STATUS_ACCEPTED) { + if (iw_event->status == 0) { cm_id_priv->id.local_addr = iw_event->local_addr; cm_id_priv->id.remote_addr = iw_event->remote_addr; cm_id_priv->state = IW_CM_STATE_ESTABLISHED; diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c index ec1e9da1488..b3fa798525b 100644 --- a/drivers/infiniband/core/ucma.c +++ b/drivers/infiniband/core/ucma.c @@ -883,6 +883,13 @@ static int ucma_set_option_id(struct ucma_context *ctx, int optname, } rdma_set_service_type(ctx->cm_id, *((u8 *) optval)); break; + case RDMA_OPTION_ID_REUSEADDR: + if (optlen != sizeof(int)) { + ret = -EINVAL; + break; + } + ret = rdma_set_reuseaddr(ctx->cm_id, *((int *) optval) ? 1 : 0); + break; default: ret = -ENOSYS; } diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c index 9d8dcfab2b3..d7ee70fc917 100644 --- a/drivers/infiniband/hw/cxgb4/cm.c +++ b/drivers/infiniband/hw/cxgb4/cm.c @@ -1198,9 +1198,7 @@ static int pass_open_rpl(struct c4iw_dev *dev, struct sk_buff *skb) } PDBG("%s ep %p status %d error %d\n", __func__, ep, rpl->status, status2errno(rpl->status)); - ep->com.wr_wait.ret = status2errno(rpl->status); - ep->com.wr_wait.done = 1; - wake_up(&ep->com.wr_wait.wait); + c4iw_wake_up(&ep->com.wr_wait, status2errno(rpl->status)); return 0; } @@ -1234,9 +1232,7 @@ static int close_listsrv_rpl(struct c4iw_dev *dev, struct sk_buff *skb) struct c4iw_listen_ep *ep = lookup_stid(t, stid); PDBG("%s ep %p\n", __func__, ep); - ep->com.wr_wait.ret = status2errno(rpl->status); - ep->com.wr_wait.done = 1; - wake_up(&ep->com.wr_wait.wait); + c4iw_wake_up(&ep->com.wr_wait, status2errno(rpl->status)); return 0; } @@ -1466,7 +1462,7 @@ static int peer_close(struct c4iw_dev *dev, struct sk_buff *skb) struct c4iw_qp_attributes attrs; int disconnect = 1; int release = 0; - int closing = 0; + int abort = 0; struct tid_info *t = dev->rdev.lldi.tids; unsigned int tid = GET_TID(hdr); @@ -1492,23 +1488,22 @@ static int peer_close(struct c4iw_dev *dev, struct sk_buff *skb) * in rdma connection migration (see c4iw_accept_cr()). */ __state_set(&ep->com, CLOSING); - ep->com.wr_wait.done = 1; - ep->com.wr_wait.ret = -ECONNRESET; PDBG("waking up ep %p tid %u\n", ep, ep->hwtid); - wake_up(&ep->com.wr_wait.wait); + c4iw_wake_up(&ep->com.wr_wait, -ECONNRESET); break; case MPA_REP_SENT: __state_set(&ep->com, CLOSING); - ep->com.wr_wait.done = 1; - ep->com.wr_wait.ret = -ECONNRESET; PDBG("waking up ep %p tid %u\n", ep, ep->hwtid); - wake_up(&ep->com.wr_wait.wait); + c4iw_wake_up(&ep->com.wr_wait, -ECONNRESET); break; case FPDU_MODE: start_ep_timer(ep); __state_set(&ep->com, CLOSING); - closing = 1; + attrs.next_state = C4IW_QP_STATE_CLOSING; + abort = c4iw_modify_qp(ep->com.qp->rhp, ep->com.qp, + C4IW_QP_ATTR_NEXT_STATE, &attrs, 1); peer_close_upcall(ep); + disconnect = 1; break; case ABORTING: disconnect = 0; @@ -1536,11 +1531,6 @@ static int peer_close(struct c4iw_dev *dev, struct sk_buff *skb) BUG_ON(1); } mutex_unlock(&ep->com.mutex); - if (closing) { - attrs.next_state = C4IW_QP_STATE_CLOSING; - c4iw_modify_qp(ep->com.qp->rhp, ep->com.qp, - C4IW_QP_ATTR_NEXT_STATE, &attrs, 1); - } if (disconnect) c4iw_ep_disconnect(ep, 0, GFP_KERNEL); if (release) @@ -1581,9 +1571,7 @@ static int peer_abort(struct c4iw_dev *dev, struct sk_buff *skb) /* * Wake up any threads in rdma_init() or rdma_fini(). */ - ep->com.wr_wait.done = 1; - ep->com.wr_wait.ret = -ECONNRESET; - wake_up(&ep->com.wr_wait.wait); + c4iw_wake_up(&ep->com.wr_wait, -ECONNRESET); mutex_lock(&ep->com.mutex); switch (ep->com.state) { @@ -1710,14 +1698,14 @@ static int terminate(struct c4iw_dev *dev, struct sk_buff *skb) ep = lookup_tid(t, tid); BUG_ON(!ep); - if (ep->com.qp) { + if (ep && ep->com.qp) { printk(KERN_WARNING MOD "TERM received tid %u qpid %u\n", tid, ep->com.qp->wq.sq.qid); attrs.next_state = C4IW_QP_STATE_TERMINATE; c4iw_modify_qp(ep->com.qp->rhp, ep->com.qp, C4IW_QP_ATTR_NEXT_STATE, &attrs, 1); } else - printk(KERN_WARNING MOD "TERM received tid %u no qp\n", tid); + printk(KERN_WARNING MOD "TERM received tid %u no ep/qp\n", tid); return 0; } @@ -2296,14 +2284,8 @@ static int fw6_msg(struct c4iw_dev *dev, struct sk_buff *skb) ret = (int)((be64_to_cpu(rpl->data[0]) >> 8) & 0xff); wr_waitp = (struct c4iw_wr_wait *)(__force unsigned long) rpl->data[1]; PDBG("%s wr_waitp %p ret %u\n", __func__, wr_waitp, ret); - if (wr_waitp) { - if (ret) - wr_waitp->ret = -ret; - else - wr_waitp->ret = 0; - wr_waitp->done = 1; - wake_up(&wr_waitp->wait); - } + if (wr_waitp) + c4iw_wake_up(wr_waitp, ret ? -ret : 0); kfree_skb(skb); break; case 2: diff --git a/drivers/infiniband/hw/cxgb4/device.c b/drivers/infiniband/hw/cxgb4/device.c index e29172c2afc..40a13cc633a 100644 --- a/drivers/infiniband/hw/cxgb4/device.c +++ b/drivers/infiniband/hw/cxgb4/device.c @@ -44,7 +44,7 @@ MODULE_DESCRIPTION("Chelsio T4 RDMA Driver"); MODULE_LICENSE("Dual BSD/GPL"); MODULE_VERSION(DRV_VERSION); -static LIST_HEAD(dev_list); +static LIST_HEAD(uld_ctx_list); static DEFINE_MUTEX(dev_mutex); static struct dentry *c4iw_debugfs_root; @@ -370,18 +370,23 @@ static void c4iw_rdev_close(struct c4iw_rdev *rdev) c4iw_destroy_resource(&rdev->resource); } -static void c4iw_remove(struct c4iw_dev *dev) +struct uld_ctx { + struct list_head entry; + struct cxgb4_lld_info lldi; + struct c4iw_dev *dev; +}; + +static void c4iw_remove(struct uld_ctx *ctx) { - PDBG("%s c4iw_dev %p\n", __func__, dev); - list_del(&dev->entry); - if (dev->registered) - c4iw_unregister_device(dev); - c4iw_rdev_close(&dev->rdev); - idr_destroy(&dev->cqidr); - idr_destroy(&dev->qpidr); - idr_destroy(&dev->mmidr); - iounmap(dev->rdev.oc_mw_kva); - ib_dealloc_device(&dev->ibdev); + PDBG("%s c4iw_dev %p\n", __func__, ctx->dev); + c4iw_unregister_device(ctx->dev); + c4iw_rdev_close(&ctx->dev->rdev); + idr_destroy(&ctx->dev->cqidr); + idr_destroy(&ctx->dev->qpidr); + idr_destroy(&ctx->dev->mmidr); + iounmap(ctx->dev->rdev.oc_mw_kva); + ib_dealloc_device(&ctx->dev->ibdev); + ctx->dev = NULL; } static struct c4iw_dev *c4iw_alloc(const struct cxgb4_lld_info *infop) @@ -392,7 +397,7 @@ static struct c4iw_dev *c4iw_alloc(const struct cxgb4_lld_info *infop) devp = (struct c4iw_dev *)ib_alloc_device(sizeof(*devp)); if (!devp) { printk(KERN_ERR MOD "Cannot allocate ib device\n"); - return NULL; + return ERR_PTR(-ENOMEM); } devp->rdev.lldi = *infop; @@ -402,27 +407,23 @@ static struct c4iw_dev *c4iw_alloc(const struct cxgb4_lld_info *infop) devp->rdev.oc_mw_kva = ioremap_wc(devp->rdev.oc_mw_pa, devp->rdev.lldi.vr->ocq.size); - printk(KERN_INFO MOD "ocq memory: " + PDBG(KERN_INFO MOD "ocq memory: " "hw_start 0x%x size %u mw_pa 0x%lx mw_kva %p\n", devp->rdev.lldi.vr->ocq.start, devp->rdev.lldi.vr->ocq.size, devp->rdev.oc_mw_pa, devp->rdev.oc_mw_kva); - mutex_lock(&dev_mutex); - ret = c4iw_rdev_open(&devp->rdev); if (ret) { mutex_unlock(&dev_mutex); printk(KERN_ERR MOD "Unable to open CXIO rdev err %d\n", ret); ib_dealloc_device(&devp->ibdev); - return NULL; + return ERR_PTR(ret); } idr_init(&devp->cqidr); idr_init(&devp->qpidr); idr_init(&devp->mmidr); spin_lock_init(&devp->lock); - list_add_tail(&devp->entry, &dev_list); - mutex_unlock(&dev_mutex); if (c4iw_debugfs_root) { devp->debugfs_root = debugfs_create_dir( @@ -435,7 +436,7 @@ static struct c4iw_dev *c4iw_alloc(const struct cxgb4_lld_info *infop) static void *c4iw_uld_add(const struct cxgb4_lld_info *infop) { - struct c4iw_dev *dev; + struct uld_ctx *ctx; static int vers_printed; int i; @@ -443,25 +444,33 @@ static void *c4iw_uld_add(const struct cxgb4_lld_info *infop) printk(KERN_INFO MOD "Chelsio T4 RDMA Driver - version %s\n", DRV_VERSION); - dev = c4iw_alloc(infop); - if (!dev) + ctx = kzalloc(sizeof *ctx, GFP_KERNEL); + if (!ctx) { + ctx = ERR_PTR(-ENOMEM); goto out; + } + ctx->lldi = *infop; PDBG("%s found device %s nchan %u nrxq %u ntxq %u nports %u\n", - __func__, pci_name(dev->rdev.lldi.pdev), - dev->rdev.lldi.nchan, dev->rdev.lldi.nrxq, - dev->rdev.lldi.ntxq, dev->rdev.lldi.nports); + __func__, pci_name(ctx->lldi.pdev), + ctx->lldi.nchan, ctx->lldi.nrxq, + ctx->lldi.ntxq, ctx->lldi.nports); + + mutex_lock(&dev_mutex); + list_add_tail(&ctx->entry, &uld_ctx_list); + mutex_unlock(&dev_mutex); - for (i = 0; i < dev->rdev.lldi.nrxq; i++) - PDBG("rxqid[%u] %u\n", i, dev->rdev.lldi.rxq_ids[i]); + for (i = 0; i < ctx->lldi.nrxq; i++) + PDBG("rxqid[%u] %u\n", i, ctx->lldi.rxq_ids[i]); out: - return dev; + return ctx; } static int c4iw_uld_rx_handler(void *handle, const __be64 *rsp, const struct pkt_gl *gl) { - struct c4iw_dev *dev = handle; + struct uld_ctx *ctx = handle; + struct c4iw_dev *dev = ctx->dev; struct sk_buff *skb; const struct cpl_act_establish *rpl; unsigned int opcode; @@ -503,47 +512,49 @@ nomem: static int c4iw_uld_state_change(void *handle, enum cxgb4_state new_state) { - struct c4iw_dev *dev = handle; + struct uld_ctx *ctx = handle; PDBG("%s new_state %u\n", __func__, new_state); switch (new_state) { case CXGB4_STATE_UP: - printk(KERN_INFO MOD "%s: Up\n", pci_name(dev->rdev.lldi.pdev)); - if (!dev->registered) { - int ret; - ret = c4iw_register_device(dev); - if (ret) + printk(KERN_INFO MOD "%s: Up\n", pci_name(ctx->lldi.pdev)); + if (!ctx->dev) { + int ret = 0; + + ctx->dev = c4iw_alloc(&ctx->lldi); + if (!IS_ERR(ctx->dev)) + ret = c4iw_register_device(ctx->dev); + if (IS_ERR(ctx->dev) || ret) printk(KERN_ERR MOD "%s: RDMA registration failed: %d\n", - pci_name(dev->rdev.lldi.pdev), ret); + pci_name(ctx->lldi.pdev), ret); } break; case CXGB4_STATE_DOWN: printk(KERN_INFO MOD "%s: Down\n", - pci_name(dev->rdev.lldi.pdev)); - if (dev->registered) - c4iw_unregister_device(dev); + pci_name(ctx->lldi.pdev)); + if (ctx->dev) + c4iw_remove(ctx); break; case CXGB4_STATE_START_RECOVERY: printk(KERN_INFO MOD "%s: Fatal Error\n", - pci_name(dev->rdev.lldi.pdev)); - dev->rdev.flags |= T4_FATAL_ERROR; - if (dev->registered) { + pci_name(ctx->lldi.pdev)); + if (ctx->dev) { struct ib_event event; + ctx->dev->rdev.flags |= T4_FATAL_ERROR; memset(&event, 0, sizeof event); event.event = IB_EVENT_DEVICE_FATAL; - event.device = &dev->ibdev; + event.device = &ctx->dev->ibdev; ib_dispatch_event(&event); - c4iw_unregister_device(dev); + c4iw_remove(ctx); } break; case CXGB4_STATE_DETACH: printk(KERN_INFO MOD "%s: Detach\n", - pci_name(dev->rdev.lldi.pdev)); - mutex_lock(&dev_mutex); - c4iw_remove(dev); - mutex_unlock(&dev_mutex); + pci_name(ctx->lldi.pdev)); + if (ctx->dev) + c4iw_remove(ctx); break; } return 0; @@ -576,11 +587,13 @@ static int __init c4iw_init_module(void) static void __exit c4iw_exit_module(void) { - struct c4iw_dev *dev, *tmp; + struct uld_ctx *ctx, *tmp; mutex_lock(&dev_mutex); - list_for_each_entry_safe(dev, tmp, &dev_list, entry) { - c4iw_remove(dev); + list_for_each_entry_safe(ctx, tmp, &uld_ctx_list, entry) { + if (ctx->dev) + c4iw_remove(ctx); + kfree(ctx); } mutex_unlock(&dev_mutex); cxgb4_unregister_uld(CXGB4_ULD_RDMA); diff --git a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h index 9f6166f5926..35d2a5dd9bb 100644 --- a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h +++ b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h @@ -131,42 +131,58 @@ static inline int c4iw_num_stags(struct c4iw_rdev *rdev) #define C4IW_WR_TO (10*HZ) +enum { + REPLY_READY = 0, +}; + struct c4iw_wr_wait { wait_queue_head_t wait; - int done; + unsigned long status; int ret; }; static inline void c4iw_init_wr_wait(struct c4iw_wr_wait *wr_waitp) { wr_waitp->ret = 0; - wr_waitp->done = 0; + wr_waitp->status = 0; init_waitqueue_head(&wr_waitp->wait); } +static inline void c4iw_wake_up(struct c4iw_wr_wait *wr_waitp, int ret) +{ + wr_waitp->ret = ret; + set_bit(REPLY_READY, &wr_waitp->status); + wake_up(&wr_waitp->wait); +} + static inline int c4iw_wait_for_reply(struct c4iw_rdev *rdev, struct c4iw_wr_wait *wr_waitp, u32 hwtid, u32 qpid, const char *func) { unsigned to = C4IW_WR_TO; - do { + int ret; - wait_event_timeout(wr_waitp->wait, wr_waitp->done, to); - if (!wr_waitp->done) { + do { + ret = wait_event_timeout(wr_waitp->wait, + test_and_clear_bit(REPLY_READY, &wr_waitp->status), to); + if (!ret) { printk(KERN_ERR MOD "%s - Device %s not responding - " "tid %u qpid %u\n", func, pci_name(rdev->lldi.pdev), hwtid, qpid); + if (c4iw_fatal_error(rdev)) { + wr_waitp->ret = -EIO; + break; + } to = to << 2; } - } while (!wr_waitp->done); + } while (!ret); if (wr_waitp->ret) - printk(KERN_WARNING MOD "%s: FW reply %d tid %u qpid %u\n", - pci_name(rdev->lldi.pdev), wr_waitp->ret, hwtid, qpid); + PDBG("%s: FW reply %d tid %u qpid %u\n", + pci_name(rdev->lldi.pdev), wr_waitp->ret, hwtid, qpid); return wr_waitp->ret; } - struct c4iw_dev { struct ib_device ibdev; struct c4iw_rdev rdev; @@ -175,9 +191,7 @@ struct c4iw_dev { struct idr qpidr; struct idr mmidr; spinlock_t lock; - struct list_head entry; struct dentry *debugfs_root; - u8 registered; }; static inline struct c4iw_dev *to_c4iw_dev(struct ib_device *ibdev) diff --git a/drivers/infiniband/hw/cxgb4/provider.c b/drivers/infiniband/hw/cxgb4/provider.c index f66dd8bf512..5b9e4220ca0 100644 --- a/drivers/infiniband/hw/cxgb4/provider.c +++ b/drivers/infiniband/hw/cxgb4/provider.c @@ -516,7 +516,6 @@ int c4iw_register_device(struct c4iw_dev *dev) if (ret) goto bail2; } - dev->registered = 1; return 0; bail2: ib_unregister_device(&dev->ibdev); @@ -535,6 +534,5 @@ void c4iw_unregister_device(struct c4iw_dev *dev) c4iw_class_attributes[i]); ib_unregister_device(&dev->ibdev); kfree(dev->ibdev.iwcm); - dev->registered = 0; return; } diff --git a/drivers/infiniband/hw/cxgb4/qp.c b/drivers/infiniband/hw/cxgb4/qp.c index 70a5a3c646d..3b773b05a89 100644 --- a/drivers/infiniband/hw/cxgb4/qp.c +++ b/drivers/infiniband/hw/cxgb4/qp.c @@ -214,7 +214,7 @@ static int create_qp(struct c4iw_rdev *rdev, struct t4_wq *wq, V_FW_RI_RES_WR_HOSTFCMODE(0) | /* no host cidx updates */ V_FW_RI_RES_WR_CPRIO(0) | /* don't keep in chip cache */ V_FW_RI_RES_WR_PCIECHN(0) | /* set by uP at ri_init time */ - t4_sq_onchip(&wq->sq) ? F_FW_RI_RES_WR_ONCHIP : 0 | + (t4_sq_onchip(&wq->sq) ? F_FW_RI_RES_WR_ONCHIP : 0) | V_FW_RI_RES_WR_IQID(scq->cqid)); res->u.sqrq.dcaen_to_eqsize = cpu_to_be32( V_FW_RI_RES_WR_DCAEN(0) | @@ -1210,7 +1210,6 @@ int c4iw_modify_qp(struct c4iw_dev *rhp, struct c4iw_qp *qhp, if (ret) { if (internal) c4iw_get_ep(&qhp->ep->com); - disconnect = abort = 1; goto err; } break; diff --git a/drivers/infiniband/hw/ipath/ipath_driver.c b/drivers/infiniband/hw/ipath/ipath_driver.c index 58c0e417bc3..be24ac72611 100644 --- a/drivers/infiniband/hw/ipath/ipath_driver.c +++ b/drivers/infiniband/hw/ipath/ipath_driver.c @@ -398,7 +398,6 @@ static int __devinit ipath_init_one(struct pci_dev *pdev, struct ipath_devdata *dd; unsigned long long addr; u32 bar0 = 0, bar1 = 0; - u8 rev; dd = ipath_alloc_devdata(pdev); if (IS_ERR(dd)) { @@ -540,13 +539,7 @@ static int __devinit ipath_init_one(struct pci_dev *pdev, goto bail_regions; } - ret = pci_read_config_byte(pdev, PCI_REVISION_ID, &rev); - if (ret) { - ipath_dev_err(dd, "Failed to read PCI revision ID unit " - "%u: err %d\n", dd->ipath_unit, -ret); - goto bail_regions; /* shouldn't ever happen */ - } - dd->ipath_pcirev = rev; + dd->ipath_pcirev = pdev->revision; #if defined(__powerpc__) /* There isn't a generic way to specify writethrough mappings */ diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c index 33c7eedaba6..e74cdf9ef47 100644 --- a/drivers/infiniband/hw/nes/nes_cm.c +++ b/drivers/infiniband/hw/nes/nes_cm.c @@ -2563,7 +2563,7 @@ static int nes_cm_disconn_true(struct nes_qp *nesqp) u16 last_ae; u8 original_hw_tcp_state; u8 original_ibqp_state; - enum iw_cm_event_status disconn_status = IW_CM_EVENT_STATUS_OK; + int disconn_status = 0; int issue_disconn = 0; int issue_close = 0; int issue_flush = 0; @@ -2605,7 +2605,7 @@ static int nes_cm_disconn_true(struct nes_qp *nesqp) (last_ae == NES_AEQE_AEID_LLP_CONNECTION_RESET))) { issue_disconn = 1; if (last_ae == NES_AEQE_AEID_LLP_CONNECTION_RESET) - disconn_status = IW_CM_EVENT_STATUS_RESET; + disconn_status = -ECONNRESET; } if (((original_hw_tcp_state == NES_AEQE_TCP_STATE_CLOSED) || @@ -2666,7 +2666,7 @@ static int nes_cm_disconn_true(struct nes_qp *nesqp) cm_id->provider_data = nesqp; /* Send up the close complete event */ cm_event.event = IW_CM_EVENT_CLOSE; - cm_event.status = IW_CM_EVENT_STATUS_OK; + cm_event.status = 0; cm_event.provider_data = cm_id->provider_data; cm_event.local_addr = cm_id->local_addr; cm_event.remote_addr = cm_id->remote_addr; @@ -2966,7 +2966,7 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) nes_add_ref(&nesqp->ibqp); cm_event.event = IW_CM_EVENT_ESTABLISHED; - cm_event.status = IW_CM_EVENT_STATUS_ACCEPTED; + cm_event.status = 0; cm_event.provider_data = (void *)nesqp; cm_event.local_addr = cm_id->local_addr; cm_event.remote_addr = cm_id->remote_addr; @@ -3377,7 +3377,7 @@ static void cm_event_connected(struct nes_cm_event *event) /* notify OF layer we successfully created the requested connection */ cm_event.event = IW_CM_EVENT_CONNECT_REPLY; - cm_event.status = IW_CM_EVENT_STATUS_ACCEPTED; + cm_event.status = 0; cm_event.provider_data = cm_id->provider_data; cm_event.local_addr.sin_family = AF_INET; cm_event.local_addr.sin_port = cm_id->local_addr.sin_port; @@ -3484,7 +3484,7 @@ static void cm_event_reset(struct nes_cm_event *event) nesqp->cm_id = NULL; /* cm_id->provider_data = NULL; */ cm_event.event = IW_CM_EVENT_DISCONNECT; - cm_event.status = IW_CM_EVENT_STATUS_RESET; + cm_event.status = -ECONNRESET; cm_event.provider_data = cm_id->provider_data; cm_event.local_addr = cm_id->local_addr; cm_event.remote_addr = cm_id->remote_addr; @@ -3495,7 +3495,7 @@ static void cm_event_reset(struct nes_cm_event *event) ret = cm_id->event_handler(cm_id, &cm_event); atomic_inc(&cm_closes); cm_event.event = IW_CM_EVENT_CLOSE; - cm_event.status = IW_CM_EVENT_STATUS_OK; + cm_event.status = 0; cm_event.provider_data = cm_id->provider_data; cm_event.local_addr = cm_id->local_addr; cm_event.remote_addr = cm_id->remote_addr; @@ -3534,7 +3534,7 @@ static void cm_event_mpa_req(struct nes_cm_event *event) cm_node, cm_id, jiffies); cm_event.event = IW_CM_EVENT_CONNECT_REQUEST; - cm_event.status = IW_CM_EVENT_STATUS_OK; + cm_event.status = 0; cm_event.provider_data = (void *)cm_node; cm_event.local_addr.sin_family = AF_INET; diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c index 26d8018c0a7..95ca93ceeda 100644 --- a/drivers/infiniband/hw/nes/nes_verbs.c +++ b/drivers/infiniband/hw/nes/nes_verbs.c @@ -1484,7 +1484,7 @@ static int nes_destroy_qp(struct ib_qp *ibqp) (nesqp->ibqp_state == IB_QPS_RTR)) && (nesqp->cm_id)) { cm_id = nesqp->cm_id; cm_event.event = IW_CM_EVENT_CONNECT_REPLY; - cm_event.status = IW_CM_EVENT_STATUS_TIMEOUT; + cm_event.status = -ETIMEDOUT; cm_event.local_addr = cm_id->local_addr; cm_event.remote_addr = cm_id->remote_addr; cm_event.private_data = NULL; diff --git a/drivers/infiniband/hw/qib/qib_iba7322.c b/drivers/infiniband/hw/qib/qib_iba7322.c index 6bab3eaea70..9f53e68a096 100644 --- a/drivers/infiniband/hw/qib/qib_iba7322.c +++ b/drivers/infiniband/hw/qib/qib_iba7322.c @@ -7534,7 +7534,8 @@ static int serdes_7322_init_new(struct qib_pportdata *ppd) ibsd_wr_allchans(ppd, 4, (1 << 10), BMASK(10, 10)); tstart = get_jiffies_64(); while (chan_done && - !time_after64(tstart, tstart + msecs_to_jiffies(500))) { + !time_after64(get_jiffies_64(), + tstart + msecs_to_jiffies(500))) { msleep(20); for (chan = 0; chan < SERDES_CHANS; ++chan) { rxcaldone = ahb_mod(ppd->dd, IBSD(ppd->hw_pidx), diff --git a/drivers/infiniband/hw/qib/qib_pcie.c b/drivers/infiniband/hw/qib/qib_pcie.c index 48b6674cbc4..891cc2ff5f0 100644 --- a/drivers/infiniband/hw/qib/qib_pcie.c +++ b/drivers/infiniband/hw/qib/qib_pcie.c @@ -526,11 +526,8 @@ static int qib_tune_pcie_coalesce(struct qib_devdata *dd) */ devid = parent->device; if (devid >= 0x25e2 && devid <= 0x25fa) { - u8 rev; - /* 5000 P/V/X/Z */ - pci_read_config_byte(parent, PCI_REVISION_ID, &rev); - if (rev <= 0xb2) + if (parent->revision <= 0xb2) bits = 1U << 10; else bits = 7U << 10; diff --git a/drivers/input/keyboard/atakbd.c b/drivers/input/keyboard/atakbd.c index 1839194ea98..10bcd4ae540 100644 --- a/drivers/input/keyboard/atakbd.c +++ b/drivers/input/keyboard/atakbd.c @@ -223,8 +223,9 @@ static int __init atakbd_init(void) return -ENODEV; // need to init core driver if not already done so - if (atari_keyb_init()) - return -ENODEV; + error = atari_keyb_init(); + if (error) + return error; atakbd_dev = input_allocate_device(); if (!atakbd_dev) diff --git a/drivers/input/mouse/atarimouse.c b/drivers/input/mouse/atarimouse.c index adf45b3040e..5c4a692bf73 100644 --- a/drivers/input/mouse/atarimouse.c +++ b/drivers/input/mouse/atarimouse.c @@ -77,15 +77,15 @@ static void atamouse_interrupt(char *buf) #endif /* only relative events get here */ - dx = buf[1]; - dy = -buf[2]; + dx = buf[1]; + dy = buf[2]; input_report_rel(atamouse_dev, REL_X, dx); input_report_rel(atamouse_dev, REL_Y, dy); - input_report_key(atamouse_dev, BTN_LEFT, buttons & 0x1); + input_report_key(atamouse_dev, BTN_LEFT, buttons & 0x4); input_report_key(atamouse_dev, BTN_MIDDLE, buttons & 0x2); - input_report_key(atamouse_dev, BTN_RIGHT, buttons & 0x4); + input_report_key(atamouse_dev, BTN_RIGHT, buttons & 0x1); input_sync(atamouse_dev); @@ -108,7 +108,7 @@ static int atamouse_open(struct input_dev *dev) static void atamouse_close(struct input_dev *dev) { ikbd_mouse_disable(); - atari_mouse_interrupt_hook = NULL; + atari_input_mouse_interrupt_hook = NULL; } static int __init atamouse_init(void) @@ -118,8 +118,9 @@ static int __init atamouse_init(void) if (!MACH_IS_ATARI || !ATARIHW_PRESENT(ST_MFP)) return -ENODEV; - if (!atari_keyb_init()) - return -ENODEV; + error = atari_keyb_init(); + if (error) + return error; atamouse_dev = input_allocate_device(); if (!atamouse_dev) diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c index c24946f5125..1de1c19dad3 100644 --- a/drivers/input/touchscreen/ads7846.c +++ b/drivers/input/touchscreen/ads7846.c @@ -281,17 +281,24 @@ struct ser_req { u8 command; u8 ref_off; u16 scratch; - __be16 sample; struct spi_message msg; struct spi_transfer xfer[6]; + /* + * DMA (thus cache coherency maintenance) requires the + * transfer buffers to live in their own cache lines. + */ + __be16 sample ____cacheline_aligned; }; struct ads7845_ser_req { u8 command[3]; - u8 pwrdown[3]; - u8 sample[3]; struct spi_message msg; struct spi_transfer xfer[2]; + /* + * DMA (thus cache coherency maintenance) requires the + * transfer buffers to live in their own cache lines. + */ + u8 sample[3] ____cacheline_aligned; }; static int ads7846_read12_ser(struct device *dev, unsigned command) diff --git a/drivers/leds/leds-lm3530.c b/drivers/leds/leds-lm3530.c index e7089a1f6cb..b37e6186d0f 100644 --- a/drivers/leds/leds-lm3530.c +++ b/drivers/leds/leds-lm3530.c @@ -349,6 +349,7 @@ static const struct i2c_device_id lm3530_id[] = { {LM3530_NAME, 0}, {} }; +MODULE_DEVICE_TABLE(i2c, lm3530_id); static struct i2c_driver lm3530_i2c_driver = { .probe = lm3530_probe, diff --git a/drivers/lguest/Kconfig b/drivers/lguest/Kconfig index 0aaa0597a62..34ae49dc557 100644 --- a/drivers/lguest/Kconfig +++ b/drivers/lguest/Kconfig @@ -5,8 +5,10 @@ config LGUEST ---help--- This is a very simple module which allows you to run multiple instances of the same Linux kernel, using the - "lguest" command found in the Documentation/lguest directory. + "lguest" command found in the Documentation/virtual/lguest + directory. + Note that "lguest" is pronounced to rhyme with "fell quest", - not "rustyvisor". See Documentation/lguest/lguest.txt. + not "rustyvisor". See Documentation/virtual/lguest/lguest.txt. If unsure, say N. If curious, say M. If masochistic, say Y. diff --git a/drivers/lguest/Makefile b/drivers/lguest/Makefile index 7d463c26124..8ac947c7e7c 100644 --- a/drivers/lguest/Makefile +++ b/drivers/lguest/Makefile @@ -18,7 +18,7 @@ Mastery: PREFIX=M Beer: @for f in Preparation Guest Drivers Launcher Host Switcher Mastery; do echo "{==- $$f -==}"; make -s $$f; done; echo "{==-==}" Preparation Preparation! Guest Drivers Launcher Host Switcher Mastery: - @sh ../../Documentation/lguest/extract $(PREFIX) `find ../../* -name '*.[chS]' -wholename '*lguest*'` + @sh ../../Documentation/virtual/lguest/extract $(PREFIX) `find ../../* -name '*.[chS]' -wholename '*lguest*'` Puppy: @clear @printf " __ \n (___()'\`;\n /, /\`\n \\\\\\\"--\\\\\\ \n" diff --git a/drivers/media/dvb/dvb-usb/Kconfig b/drivers/media/dvb/dvb-usb/Kconfig index ccbd39a38c4..c545039287a 100644 --- a/drivers/media/dvb/dvb-usb/Kconfig +++ b/drivers/media/dvb/dvb-usb/Kconfig @@ -356,6 +356,8 @@ config DVB_USB_LME2510 select DVB_TDA826X if !DVB_FE_CUSTOMISE select DVB_STV0288 if !DVB_FE_CUSTOMISE select DVB_IX2505V if !DVB_FE_CUSTOMISE + select DVB_STV0299 if !DVB_FE_CUSTOMISE + select DVB_PLL if !DVB_FE_CUSTOMISE help Say Y here to support the LME DM04/QQBOX DVB-S USB2.0 . diff --git a/drivers/media/dvb/ngene/ngene-core.c b/drivers/media/dvb/ngene/ngene-core.c index ccc2d1af49d..6927c726ce3 100644 --- a/drivers/media/dvb/ngene/ngene-core.c +++ b/drivers/media/dvb/ngene/ngene-core.c @@ -1520,6 +1520,7 @@ static int init_channel(struct ngene_channel *chan) if (dev->ci.en && (io & NGENE_IO_TSOUT)) { dvb_ca_en50221_init(adapter, dev->ci.en, 0, 1); set_transfer(chan, 1); + chan->dev->channel[2].DataFormatFlags = DF_SWAP32; set_transfer(&chan->dev->channel[2], 1); dvb_register_device(adapter, &chan->ci_dev, &ngene_dvbdev_ci, (void *) chan, diff --git a/drivers/media/radio/saa7706h.c b/drivers/media/radio/saa7706h.c index 585680ffbfb..b1193dfc508 100644 --- a/drivers/media/radio/saa7706h.c +++ b/drivers/media/radio/saa7706h.c @@ -376,7 +376,7 @@ static int __devinit saa7706h_probe(struct i2c_client *client, v4l_info(client, "chip found @ 0x%02x (%s)\n", client->addr << 1, client->adapter->name); - state = kmalloc(sizeof(struct saa7706h_state), GFP_KERNEL); + state = kzalloc(sizeof(struct saa7706h_state), GFP_KERNEL); if (state == NULL) return -ENOMEM; sd = &state->sd; diff --git a/drivers/media/radio/tef6862.c b/drivers/media/radio/tef6862.c index 7c0d77751f6..0991e197367 100644 --- a/drivers/media/radio/tef6862.c +++ b/drivers/media/radio/tef6862.c @@ -176,7 +176,7 @@ static int __devinit tef6862_probe(struct i2c_client *client, v4l_info(client, "chip found @ 0x%02x (%s)\n", client->addr << 1, client->adapter->name); - state = kmalloc(sizeof(struct tef6862_state), GFP_KERNEL); + state = kzalloc(sizeof(struct tef6862_state), GFP_KERNEL); if (state == NULL) return -ENOMEM; state->freq = TEF6862_LO_FREQ; diff --git a/drivers/media/rc/imon.c b/drivers/media/rc/imon.c index ebd68edf5b2..8fc0f081b47 100644 --- a/drivers/media/rc/imon.c +++ b/drivers/media/rc/imon.c @@ -46,7 +46,7 @@ #define MOD_AUTHOR "Jarod Wilson <jarod@wilsonet.com>" #define MOD_DESC "Driver for SoundGraph iMON MultiMedia IR/Display" #define MOD_NAME "imon" -#define MOD_VERSION "0.9.2" +#define MOD_VERSION "0.9.3" #define DISPLAY_MINOR_BASE 144 #define DEVICE_NAME "lcd%d" @@ -460,8 +460,9 @@ static int display_close(struct inode *inode, struct file *file) } /** - * Sends a packet to the device -- this function must be called - * with ictx->lock held. + * Sends a packet to the device -- this function must be called with + * ictx->lock held, or its unlock/lock sequence while waiting for tx + * to complete can/will lead to a deadlock. */ static int send_packet(struct imon_context *ictx) { @@ -991,12 +992,21 @@ static void imon_touch_display_timeout(unsigned long data) * the iMON remotes, and those used by the Windows MCE remotes (which is * really just RC-6), but only one or the other at a time, as the signals * are decoded onboard the receiver. + * + * This function gets called two different ways, one way is from + * rc_register_device, for initial protocol selection/setup, and the other is + * via a userspace-initiated protocol change request, either by direct sysfs + * prodding or by something like ir-keytable. In the rc_register_device case, + * the imon context lock is already held, but when initiated from userspace, + * it is not, so we must acquire it prior to calling send_packet, which + * requires that the lock is held. */ static int imon_ir_change_protocol(struct rc_dev *rc, u64 rc_type) { int retval; struct imon_context *ictx = rc->priv; struct device *dev = ictx->dev; + bool unlock = false; unsigned char ir_proto_packet[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x86 }; @@ -1029,6 +1039,11 @@ static int imon_ir_change_protocol(struct rc_dev *rc, u64 rc_type) memcpy(ictx->usb_tx_buf, &ir_proto_packet, sizeof(ir_proto_packet)); + if (!mutex_is_locked(&ictx->lock)) { + unlock = true; + mutex_lock(&ictx->lock); + } + retval = send_packet(ictx); if (retval) goto out; @@ -1037,6 +1052,9 @@ static int imon_ir_change_protocol(struct rc_dev *rc, u64 rc_type) ictx->pad_mouse = false; out: + if (unlock) + mutex_unlock(&ictx->lock); + return retval; } @@ -2134,6 +2152,7 @@ static struct imon_context *imon_init_intf0(struct usb_interface *intf) goto rdev_setup_failed; } + mutex_unlock(&ictx->lock); return ictx; rdev_setup_failed: @@ -2205,6 +2224,7 @@ static struct imon_context *imon_init_intf1(struct usb_interface *intf, goto urb_submit_failed; } + mutex_unlock(&ictx->lock); return ictx; urb_submit_failed: @@ -2299,6 +2319,8 @@ static int __devinit imon_probe(struct usb_interface *interface, usb_set_intfdata(interface, ictx); if (ifnum == 0) { + mutex_lock(&ictx->lock); + if (product == 0xffdc && ictx->rf_device) { sysfs_err = sysfs_create_group(&interface->dev.kobj, &imon_rf_attr_group); @@ -2309,13 +2331,14 @@ static int __devinit imon_probe(struct usb_interface *interface, if (ictx->display_supported) imon_init_display(ictx, interface); + + mutex_unlock(&ictx->lock); } dev_info(dev, "iMON device (%04x:%04x, intf%d) on " "usb<%d:%d> initialized\n", vendor, product, ifnum, usbdev->bus->busnum, usbdev->devnum); - mutex_unlock(&ictx->lock); mutex_unlock(&driver_lock); return 0; diff --git a/drivers/media/rc/ite-cir.c b/drivers/media/rc/ite-cir.c index accaf6c9789..43908a70bd8 100644 --- a/drivers/media/rc/ite-cir.c +++ b/drivers/media/rc/ite-cir.c @@ -36,6 +36,7 @@ #include <linux/io.h> #include <linux/interrupt.h> #include <linux/sched.h> +#include <linux/delay.h> #include <linux/slab.h> #include <linux/input.h> #include <linux/bitops.h> diff --git a/drivers/media/rc/mceusb.c b/drivers/media/rc/mceusb.c index 044fb7a382d..0c273ec465c 100644 --- a/drivers/media/rc/mceusb.c +++ b/drivers/media/rc/mceusb.c @@ -220,6 +220,8 @@ static struct usb_device_id mceusb_dev_table[] = { { USB_DEVICE(VENDOR_PHILIPS, 0x206c) }, /* Philips/Spinel plus IR transceiver for ASUS */ { USB_DEVICE(VENDOR_PHILIPS, 0x2088) }, + /* Philips IR transceiver (Dell branded) */ + { USB_DEVICE(VENDOR_PHILIPS, 0x2093) }, /* Realtek MCE IR Receiver and card reader */ { USB_DEVICE(VENDOR_REALTEK, 0x0161), .driver_info = MULTIFUNCTION }, diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c index f53f9c68d38..a2706648e36 100644 --- a/drivers/media/rc/rc-main.c +++ b/drivers/media/rc/rc-main.c @@ -707,7 +707,8 @@ static void ir_close(struct input_dev *idev) { struct rc_dev *rdev = input_get_drvdata(idev); - rdev->close(rdev); + if (rdev) + rdev->close(rdev); } /* class for /sys/class/rc */ @@ -733,6 +734,7 @@ static struct { { RC_TYPE_SONY, "sony" }, { RC_TYPE_RC5_SZ, "rc-5-sz" }, { RC_TYPE_LIRC, "lirc" }, + { RC_TYPE_OTHER, "other" }, }; #define PROTO_NONE "none" diff --git a/drivers/media/video/cx88/cx88-input.c b/drivers/media/video/cx88/cx88-input.c index c820e2f5352..3f442003623 100644 --- a/drivers/media/video/cx88/cx88-input.c +++ b/drivers/media/video/cx88/cx88-input.c @@ -524,7 +524,7 @@ void cx88_ir_irq(struct cx88_core *core) for (todo = 32; todo > 0; todo -= bits) { ev.pulse = samples & 0x80000000 ? false : true; bits = min(todo, 32U - fls(ev.pulse ? samples : ~samples)); - ev.duration = (bits * NSEC_PER_SEC) / (1000 * ir_samplerate); + ev.duration = (bits * (NSEC_PER_SEC / 1000)) / ir_samplerate; ir_raw_event_store_with_filter(ir->dev, &ev); samples <<= bits; } diff --git a/drivers/media/video/m52790.c b/drivers/media/video/m52790.c index 5e1c9a81984..303ffa7df4a 100644 --- a/drivers/media/video/m52790.c +++ b/drivers/media/video/m52790.c @@ -174,7 +174,7 @@ static int m52790_probe(struct i2c_client *client, v4l_info(client, "chip found @ 0x%x (%s)\n", client->addr << 1, client->adapter->name); - state = kmalloc(sizeof(struct m52790_state), GFP_KERNEL); + state = kzalloc(sizeof(struct m52790_state), GFP_KERNEL); if (state == NULL) return -ENOMEM; diff --git a/drivers/media/video/soc_camera.c b/drivers/media/video/soc_camera.c index 3973f9a9475..ddb4c091ded 100644 --- a/drivers/media/video/soc_camera.c +++ b/drivers/media/video/soc_camera.c @@ -136,11 +136,50 @@ unsigned long soc_camera_apply_sensor_flags(struct soc_camera_link *icl, } EXPORT_SYMBOL(soc_camera_apply_sensor_flags); +#define pixfmtstr(x) (x) & 0xff, ((x) >> 8) & 0xff, ((x) >> 16) & 0xff, \ + ((x) >> 24) & 0xff + +static int soc_camera_try_fmt(struct soc_camera_device *icd, + struct v4l2_format *f) +{ + struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent); + struct v4l2_pix_format *pix = &f->fmt.pix; + int ret; + + dev_dbg(&icd->dev, "TRY_FMT(%c%c%c%c, %ux%u)\n", + pixfmtstr(pix->pixelformat), pix->width, pix->height); + + pix->bytesperline = 0; + pix->sizeimage = 0; + + ret = ici->ops->try_fmt(icd, f); + if (ret < 0) + return ret; + + if (!pix->sizeimage) { + if (!pix->bytesperline) { + const struct soc_camera_format_xlate *xlate; + + xlate = soc_camera_xlate_by_fourcc(icd, pix->pixelformat); + if (!xlate) + return -EINVAL; + + ret = soc_mbus_bytes_per_line(pix->width, + xlate->host_fmt); + if (ret > 0) + pix->bytesperline = ret; + } + if (pix->bytesperline) + pix->sizeimage = pix->bytesperline * pix->height; + } + + return 0; +} + static int soc_camera_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { struct soc_camera_device *icd = file->private_data; - struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent); WARN_ON(priv != file->private_data); @@ -149,7 +188,7 @@ static int soc_camera_try_fmt_vid_cap(struct file *file, void *priv, return -EINVAL; /* limit format to hardware capabilities */ - return ici->ops->try_fmt(icd, f); + return soc_camera_try_fmt(icd, f); } static int soc_camera_enum_input(struct file *file, void *priv, @@ -362,9 +401,6 @@ static void soc_camera_free_user_formats(struct soc_camera_device *icd) icd->user_formats = NULL; } -#define pixfmtstr(x) (x) & 0xff, ((x) >> 8) & 0xff, ((x) >> 16) & 0xff, \ - ((x) >> 24) & 0xff - /* Called with .vb_lock held, or from the first open(2), see comment there */ static int soc_camera_set_fmt(struct soc_camera_device *icd, struct v4l2_format *f) @@ -377,7 +413,7 @@ static int soc_camera_set_fmt(struct soc_camera_device *icd, pixfmtstr(pix->pixelformat), pix->width, pix->height); /* We always call try_fmt() before set_fmt() or set_crop() */ - ret = ici->ops->try_fmt(icd, f); + ret = soc_camera_try_fmt(icd, f); if (ret < 0) return ret; diff --git a/drivers/media/video/tda9840.c b/drivers/media/video/tda9840.c index 5d4cf3b3d43..22fa8202d5c 100644 --- a/drivers/media/video/tda9840.c +++ b/drivers/media/video/tda9840.c @@ -171,7 +171,7 @@ static int tda9840_probe(struct i2c_client *client, v4l_info(client, "chip found @ 0x%x (%s)\n", client->addr << 1, client->adapter->name); - sd = kmalloc(sizeof(struct v4l2_subdev), GFP_KERNEL); + sd = kzalloc(sizeof(struct v4l2_subdev), GFP_KERNEL); if (sd == NULL) return -ENOMEM; v4l2_i2c_subdev_init(sd, client, &tda9840_ops); diff --git a/drivers/media/video/tea6415c.c b/drivers/media/video/tea6415c.c index 19621ed523e..827425c5b86 100644 --- a/drivers/media/video/tea6415c.c +++ b/drivers/media/video/tea6415c.c @@ -152,7 +152,7 @@ static int tea6415c_probe(struct i2c_client *client, v4l_info(client, "chip found @ 0x%x (%s)\n", client->addr << 1, client->adapter->name); - sd = kmalloc(sizeof(struct v4l2_subdev), GFP_KERNEL); + sd = kzalloc(sizeof(struct v4l2_subdev), GFP_KERNEL); if (sd == NULL) return -ENOMEM; v4l2_i2c_subdev_init(sd, client, &tea6415c_ops); diff --git a/drivers/media/video/tea6420.c b/drivers/media/video/tea6420.c index 5ea840401f2..f350b6c2450 100644 --- a/drivers/media/video/tea6420.c +++ b/drivers/media/video/tea6420.c @@ -125,7 +125,7 @@ static int tea6420_probe(struct i2c_client *client, v4l_info(client, "chip found @ 0x%x (%s)\n", client->addr << 1, client->adapter->name); - sd = kmalloc(sizeof(struct v4l2_subdev), GFP_KERNEL); + sd = kzalloc(sizeof(struct v4l2_subdev), GFP_KERNEL); if (sd == NULL) return -ENOMEM; v4l2_i2c_subdev_init(sd, client, &tea6420_ops); diff --git a/drivers/media/video/upd64031a.c b/drivers/media/video/upd64031a.c index f8138c75be8..1aab96a8820 100644 --- a/drivers/media/video/upd64031a.c +++ b/drivers/media/video/upd64031a.c @@ -230,7 +230,7 @@ static int upd64031a_probe(struct i2c_client *client, v4l_info(client, "chip found @ 0x%x (%s)\n", client->addr << 1, client->adapter->name); - state = kmalloc(sizeof(struct upd64031a_state), GFP_KERNEL); + state = kzalloc(sizeof(struct upd64031a_state), GFP_KERNEL); if (state == NULL) return -ENOMEM; sd = &state->sd; diff --git a/drivers/media/video/upd64083.c b/drivers/media/video/upd64083.c index 28e0e6b6ca8..9bbe61700fd 100644 --- a/drivers/media/video/upd64083.c +++ b/drivers/media/video/upd64083.c @@ -202,7 +202,7 @@ static int upd64083_probe(struct i2c_client *client, v4l_info(client, "chip found @ 0x%x (%s)\n", client->addr << 1, client->adapter->name); - state = kmalloc(sizeof(struct upd64083_state), GFP_KERNEL); + state = kzalloc(sizeof(struct upd64083_state), GFP_KERNEL); if (state == NULL) return -ENOMEM; sd = &state->sd; diff --git a/drivers/media/video/v4l2-device.c b/drivers/media/video/v4l2-device.c index 5aeaf876ba9..4aae501f02d 100644 --- a/drivers/media/video/v4l2-device.c +++ b/drivers/media/video/v4l2-device.c @@ -155,8 +155,10 @@ int v4l2_device_register_subdev(struct v4l2_device *v4l2_dev, sd->v4l2_dev = v4l2_dev; if (sd->internal_ops && sd->internal_ops->registered) { err = sd->internal_ops->registered(sd); - if (err) + if (err) { + module_put(sd->owner); return err; + } } /* This just returns 0 if either of the two args is NULL */ @@ -164,6 +166,7 @@ int v4l2_device_register_subdev(struct v4l2_device *v4l2_dev, if (err) { if (sd->internal_ops && sd->internal_ops->unregistered) sd->internal_ops->unregistered(sd); + module_put(sd->owner); return err; } diff --git a/drivers/media/video/v4l2-subdev.c b/drivers/media/video/v4l2-subdev.c index 0b806449067..812729ebf09 100644 --- a/drivers/media/video/v4l2-subdev.c +++ b/drivers/media/video/v4l2-subdev.c @@ -155,25 +155,25 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg) switch (cmd) { case VIDIOC_QUERYCTRL: - return v4l2_subdev_queryctrl(sd, arg); + return v4l2_queryctrl(sd->ctrl_handler, arg); case VIDIOC_QUERYMENU: - return v4l2_subdev_querymenu(sd, arg); + return v4l2_querymenu(sd->ctrl_handler, arg); case VIDIOC_G_CTRL: - return v4l2_subdev_g_ctrl(sd, arg); + return v4l2_g_ctrl(sd->ctrl_handler, arg); case VIDIOC_S_CTRL: - return v4l2_subdev_s_ctrl(sd, arg); + return v4l2_s_ctrl(sd->ctrl_handler, arg); case VIDIOC_G_EXT_CTRLS: - return v4l2_subdev_g_ext_ctrls(sd, arg); + return v4l2_g_ext_ctrls(sd->ctrl_handler, arg); case VIDIOC_S_EXT_CTRLS: - return v4l2_subdev_s_ext_ctrls(sd, arg); + return v4l2_s_ext_ctrls(sd->ctrl_handler, arg); case VIDIOC_TRY_EXT_CTRLS: - return v4l2_subdev_try_ext_ctrls(sd, arg); + return v4l2_try_ext_ctrls(sd->ctrl_handler, arg); case VIDIOC_DQEVENT: if (!(sd->flags & V4L2_SUBDEV_FL_HAS_EVENTS)) diff --git a/drivers/message/i2o/i2o_block.c b/drivers/message/i2o/i2o_block.c index 643ad52e3ca..4796bbf0ae4 100644 --- a/drivers/message/i2o/i2o_block.c +++ b/drivers/message/i2o/i2o_block.c @@ -1000,7 +1000,6 @@ static struct i2o_block_device *i2o_block_device_alloc(void) gd->major = I2O_MAJOR; gd->queue = queue; gd->fops = &i2o_block_fops; - gd->events = DISK_EVENT_MEDIA_CHANGE; gd->private_data = dev; dev->gd = gd; diff --git a/drivers/mfd/asic3.c b/drivers/mfd/asic3.c index d4a851c6b5b..0b4d5b23bec 100644 --- a/drivers/mfd/asic3.c +++ b/drivers/mfd/asic3.c @@ -144,7 +144,7 @@ static void asic3_irq_demux(unsigned int irq, struct irq_desc *desc) int iter, i; unsigned long flags; - data->chip->irq_ack(irq_data); + data->chip->irq_ack(data); for (iter = 0 ; iter < MAX_ASIC_ISR_LOOPS; iter++) { u32 status; diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c index 53450f433f1..3ab9ffa00aa 100644 --- a/drivers/mfd/omap-usb-host.c +++ b/drivers/mfd/omap-usb-host.c @@ -25,7 +25,6 @@ #include <linux/dma-mapping.h> #include <linux/spinlock.h> #include <linux/gpio.h> -#include <linux/regulator/consumer.h> #include <plat/usb.h> #define USBHS_DRIVER_NAME "usbhs-omap" @@ -700,8 +699,7 @@ static int usbhs_enable(struct device *dev) dev_dbg(dev, "starting TI HSUSB Controller\n"); if (!pdata) { dev_dbg(dev, "missing platform_data\n"); - ret = -ENODEV; - goto end_enable; + return -ENODEV; } spin_lock_irqsave(&omap->lock, flags); @@ -719,14 +717,14 @@ static int usbhs_enable(struct device *dev) gpio_request(pdata->ehci_data->reset_gpio_port[0], "USB1 PHY reset"); gpio_direction_output - (pdata->ehci_data->reset_gpio_port[0], 1); + (pdata->ehci_data->reset_gpio_port[0], 0); } if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[1])) { gpio_request(pdata->ehci_data->reset_gpio_port[1], "USB2 PHY reset"); gpio_direction_output - (pdata->ehci_data->reset_gpio_port[1], 1); + (pdata->ehci_data->reset_gpio_port[1], 0); } /* Hold the PHY in RESET for enough time till DIR is high */ @@ -906,16 +904,17 @@ static int usbhs_enable(struct device *dev) if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[0])) gpio_set_value - (pdata->ehci_data->reset_gpio_port[0], 0); + (pdata->ehci_data->reset_gpio_port[0], 1); if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[1])) gpio_set_value - (pdata->ehci_data->reset_gpio_port[1], 0); + (pdata->ehci_data->reset_gpio_port[1], 1); } end_count: omap->count++; - goto end_enable; + spin_unlock_irqrestore(&omap->lock, flags); + return 0; err_tll: if (pdata->ehci_data->phy_reset) { @@ -931,8 +930,6 @@ err_tll: clk_disable(omap->usbhost_fs_fck); clk_disable(omap->usbhost_hs_fck); clk_disable(omap->usbhost_ick); - -end_enable: spin_unlock_irqrestore(&omap->lock, flags); return ret; } diff --git a/drivers/mfd/twl4030-power.c b/drivers/mfd/twl4030-power.c index 16422de0823..2c0d4d16491 100644 --- a/drivers/mfd/twl4030-power.c +++ b/drivers/mfd/twl4030-power.c @@ -447,12 +447,13 @@ static int __init load_twl4030_script(struct twl4030_script *tscript, if (err) goto out; } - if (tscript->flags & TWL4030_SLEEP_SCRIPT) + if (tscript->flags & TWL4030_SLEEP_SCRIPT) { if (order) pr_warning("TWL4030: Bad order of scripts (sleep "\ "script before wakeup) Leads to boot"\ "failure on some boards\n"); err = twl4030_config_sleep_sequence(address); + } out: return err; } diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c index 2b200c1cfbb..461e6a17fb9 100644 --- a/drivers/mmc/core/host.c +++ b/drivers/mmc/core/host.c @@ -94,7 +94,7 @@ static void mmc_host_clk_gate_delayed(struct mmc_host *host) spin_unlock_irqrestore(&host->clk_lock, flags); return; } - mmc_claim_host(host); + mutex_lock(&host->clk_gate_mutex); spin_lock_irqsave(&host->clk_lock, flags); if (!host->clk_requests) { spin_unlock_irqrestore(&host->clk_lock, flags); @@ -104,7 +104,7 @@ static void mmc_host_clk_gate_delayed(struct mmc_host *host) pr_debug("%s: gated MCI clock\n", mmc_hostname(host)); } spin_unlock_irqrestore(&host->clk_lock, flags); - mmc_release_host(host); + mutex_unlock(&host->clk_gate_mutex); } /* @@ -130,7 +130,7 @@ void mmc_host_clk_ungate(struct mmc_host *host) { unsigned long flags; - mmc_claim_host(host); + mutex_lock(&host->clk_gate_mutex); spin_lock_irqsave(&host->clk_lock, flags); if (host->clk_gated) { spin_unlock_irqrestore(&host->clk_lock, flags); @@ -140,7 +140,7 @@ void mmc_host_clk_ungate(struct mmc_host *host) } host->clk_requests++; spin_unlock_irqrestore(&host->clk_lock, flags); - mmc_release_host(host); + mutex_unlock(&host->clk_gate_mutex); } /** @@ -215,6 +215,7 @@ static inline void mmc_host_clk_init(struct mmc_host *host) host->clk_gated = false; INIT_WORK(&host->clk_gate_work, mmc_host_clk_gate_work); spin_lock_init(&host->clk_lock); + mutex_init(&host->clk_gate_mutex); } /** diff --git a/drivers/mmc/host/sdhci-of-core.c b/drivers/mmc/host/sdhci-of-core.c index f9b611fc773..60e4186a434 100644 --- a/drivers/mmc/host/sdhci-of-core.c +++ b/drivers/mmc/host/sdhci-of-core.c @@ -124,8 +124,10 @@ static bool __devinit sdhci_of_wp_inverted(struct device_node *np) #endif } +static const struct of_device_id sdhci_of_match[]; static int __devinit sdhci_of_probe(struct platform_device *ofdev) { + const struct of_device_id *match; struct device_node *np = ofdev->dev.of_node; struct sdhci_of_data *sdhci_of_data; struct sdhci_host *host; @@ -134,9 +136,10 @@ static int __devinit sdhci_of_probe(struct platform_device *ofdev) int size; int ret; - if (!ofdev->dev.of_match) + match = of_match_device(sdhci_of_match, &ofdev->dev); + if (!match) return -EINVAL; - sdhci_of_data = ofdev->dev.of_match->data; + sdhci_of_data = match->data; if (!of_device_is_available(np)) return -ENODEV; diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig index 44b1f46458c..5069111c81c 100644 --- a/drivers/mtd/maps/Kconfig +++ b/drivers/mtd/maps/Kconfig @@ -260,6 +260,13 @@ config MTD_BCM963XX Support for parsing CFE image tag and creating MTD partitions on Broadcom BCM63xx boards. +config MTD_LANTIQ + tristate "Lantiq SoC NOR support" + depends on LANTIQ + select MTD_PARTITIONS + help + Support for NOR flash attached to the Lantiq SoC's External Bus Unit. + config MTD_DILNETPC tristate "CFI Flash device mapped on DIL/Net PC" depends on X86 && MTD_PARTITIONS && MTD_CFI_INTELEXT && BROKEN diff --git a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile index 08533bd5cba..6adf4c9b905 100644 --- a/drivers/mtd/maps/Makefile +++ b/drivers/mtd/maps/Makefile @@ -60,3 +60,4 @@ obj-$(CONFIG_MTD_VMU) += vmu-flash.o obj-$(CONFIG_MTD_GPIO_ADDR) += gpio-addr-flash.o obj-$(CONFIG_MTD_BCM963XX) += bcm963xx-flash.o obj-$(CONFIG_MTD_LATCH_ADDR) += latch-addr-flash.o +obj-$(CONFIG_MTD_LANTIQ) += lantiq-flash.o diff --git a/drivers/mtd/maps/lantiq-flash.c b/drivers/mtd/maps/lantiq-flash.c new file mode 100644 index 00000000000..a90cabd7b84 --- /dev/null +++ b/drivers/mtd/maps/lantiq-flash.c @@ -0,0 +1,251 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2004 Liu Peng Infineon IFAP DC COM CPE + * Copyright (C) 2010 John Crispin <blogic@openwrt.org> + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/io.h> +#include <linux/slab.h> +#include <linux/init.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> +#include <linux/mtd/cfi.h> +#include <linux/platform_device.h> +#include <linux/mtd/physmap.h> + +#include <lantiq_soc.h> +#include <lantiq_platform.h> + +/* + * The NOR flash is connected to the same external bus unit (EBU) as PCI. + * To make PCI work we need to enable the endianness swapping for the address + * written to the EBU. This endianness swapping works for PCI correctly but + * fails for attached NOR devices. To workaround this we need to use a complex + * map. The workaround involves swapping all addresses whilst probing the chip. + * Once probing is complete we stop swapping the addresses but swizzle the + * unlock addresses to ensure that access to the NOR device works correctly. + */ + +enum { + LTQ_NOR_PROBING, + LTQ_NOR_NORMAL +}; + +struct ltq_mtd { + struct resource *res; + struct mtd_info *mtd; + struct map_info *map; +}; + +static char ltq_map_name[] = "ltq_nor"; + +static map_word +ltq_read16(struct map_info *map, unsigned long adr) +{ + unsigned long flags; + map_word temp; + + if (map->map_priv_1 == LTQ_NOR_PROBING) + adr ^= 2; + spin_lock_irqsave(&ebu_lock, flags); + temp.x[0] = *(u16 *)(map->virt + adr); + spin_unlock_irqrestore(&ebu_lock, flags); + return temp; +} + +static void +ltq_write16(struct map_info *map, map_word d, unsigned long adr) +{ + unsigned long flags; + + if (map->map_priv_1 == LTQ_NOR_PROBING) + adr ^= 2; + spin_lock_irqsave(&ebu_lock, flags); + *(u16 *)(map->virt + adr) = d.x[0]; + spin_unlock_irqrestore(&ebu_lock, flags); +} + +/* + * The following 2 functions copy data between iomem and a cached memory + * section. As memcpy() makes use of pre-fetching we cannot use it here. + * The normal alternative of using memcpy_{to,from}io also makes use of + * memcpy() on MIPS so it is not applicable either. We are therefore stuck + * with having to use our own loop. + */ +static void +ltq_copy_from(struct map_info *map, void *to, + unsigned long from, ssize_t len) +{ + unsigned char *f = (unsigned char *)map->virt + from; + unsigned char *t = (unsigned char *)to; + unsigned long flags; + + spin_lock_irqsave(&ebu_lock, flags); + while (len--) + *t++ = *f++; + spin_unlock_irqrestore(&ebu_lock, flags); +} + +static void +ltq_copy_to(struct map_info *map, unsigned long to, + const void *from, ssize_t len) +{ + unsigned char *f = (unsigned char *)from; + unsigned char *t = (unsigned char *)map->virt + to; + unsigned long flags; + + spin_lock_irqsave(&ebu_lock, flags); + while (len--) + *t++ = *f++; + spin_unlock_irqrestore(&ebu_lock, flags); +} + +static const char const *part_probe_types[] = { "cmdlinepart", NULL }; + +static int __init +ltq_mtd_probe(struct platform_device *pdev) +{ + struct physmap_flash_data *ltq_mtd_data = dev_get_platdata(&pdev->dev); + struct ltq_mtd *ltq_mtd; + struct mtd_partition *parts; + struct resource *res; + int nr_parts = 0; + struct cfi_private *cfi; + int err; + + ltq_mtd = kzalloc(sizeof(struct ltq_mtd), GFP_KERNEL); + platform_set_drvdata(pdev, ltq_mtd); + + ltq_mtd->res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!ltq_mtd->res) { + dev_err(&pdev->dev, "failed to get memory resource"); + err = -ENOENT; + goto err_out; + } + + res = devm_request_mem_region(&pdev->dev, ltq_mtd->res->start, + resource_size(ltq_mtd->res), dev_name(&pdev->dev)); + if (!ltq_mtd->res) { + dev_err(&pdev->dev, "failed to request mem resource"); + err = -EBUSY; + goto err_out; + } + + ltq_mtd->map = kzalloc(sizeof(struct map_info), GFP_KERNEL); + ltq_mtd->map->phys = res->start; + ltq_mtd->map->size = resource_size(res); + ltq_mtd->map->virt = devm_ioremap_nocache(&pdev->dev, + ltq_mtd->map->phys, ltq_mtd->map->size); + if (!ltq_mtd->map->virt) { + dev_err(&pdev->dev, "failed to ioremap!\n"); + err = -ENOMEM; + goto err_free; + } + + ltq_mtd->map->name = ltq_map_name; + ltq_mtd->map->bankwidth = 2; + ltq_mtd->map->read = ltq_read16; + ltq_mtd->map->write = ltq_write16; + ltq_mtd->map->copy_from = ltq_copy_from; + ltq_mtd->map->copy_to = ltq_copy_to; + + ltq_mtd->map->map_priv_1 = LTQ_NOR_PROBING; + ltq_mtd->mtd = do_map_probe("cfi_probe", ltq_mtd->map); + ltq_mtd->map->map_priv_1 = LTQ_NOR_NORMAL; + + if (!ltq_mtd->mtd) { + dev_err(&pdev->dev, "probing failed\n"); + err = -ENXIO; + goto err_unmap; + } + + ltq_mtd->mtd->owner = THIS_MODULE; + + cfi = ltq_mtd->map->fldrv_priv; + cfi->addr_unlock1 ^= 1; + cfi->addr_unlock2 ^= 1; + + nr_parts = parse_mtd_partitions(ltq_mtd->mtd, + part_probe_types, &parts, 0); + if (nr_parts > 0) { + dev_info(&pdev->dev, + "using %d partitions from cmdline", nr_parts); + } else { + nr_parts = ltq_mtd_data->nr_parts; + parts = ltq_mtd_data->parts; + } + + err = add_mtd_partitions(ltq_mtd->mtd, parts, nr_parts); + if (err) { + dev_err(&pdev->dev, "failed to add partitions\n"); + goto err_destroy; + } + + return 0; + +err_destroy: + map_destroy(ltq_mtd->mtd); +err_unmap: + iounmap(ltq_mtd->map->virt); +err_free: + kfree(ltq_mtd->map); +err_out: + kfree(ltq_mtd); + return err; +} + +static int __devexit +ltq_mtd_remove(struct platform_device *pdev) +{ + struct ltq_mtd *ltq_mtd = platform_get_drvdata(pdev); + + if (ltq_mtd) { + if (ltq_mtd->mtd) { + del_mtd_partitions(ltq_mtd->mtd); + map_destroy(ltq_mtd->mtd); + } + if (ltq_mtd->map->virt) + iounmap(ltq_mtd->map->virt); + kfree(ltq_mtd->map); + kfree(ltq_mtd); + } + return 0; +} + +static struct platform_driver ltq_mtd_driver = { + .remove = __devexit_p(ltq_mtd_remove), + .driver = { + .name = "ltq_nor", + .owner = THIS_MODULE, + }, +}; + +static int __init +init_ltq_mtd(void) +{ + int ret = platform_driver_probe(<q_mtd_driver, ltq_mtd_probe); + + if (ret) + pr_err("ltq_nor: error registering platform driver"); + return ret; +} + +static void __exit +exit_ltq_mtd(void) +{ + platform_driver_unregister(<q_mtd_driver); +} + +module_init(init_ltq_mtd); +module_exit(exit_ltq_mtd); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("John Crispin <blogic@openwrt.org>"); +MODULE_DESCRIPTION("Lantiq SoC NOR"); diff --git a/drivers/mtd/maps/physmap_of.c b/drivers/mtd/maps/physmap_of.c index bd483f0c57e..c1d33464aee 100644 --- a/drivers/mtd/maps/physmap_of.c +++ b/drivers/mtd/maps/physmap_of.c @@ -214,11 +214,13 @@ static void __devinit of_free_probes(const char **probes) } #endif +static struct of_device_id of_flash_match[]; static int __devinit of_flash_probe(struct platform_device *dev) { #ifdef CONFIG_MTD_PARTITIONS const char **part_probe_types; #endif + const struct of_device_id *match; struct device_node *dp = dev->dev.of_node; struct resource res; struct of_flash *info; @@ -232,9 +234,10 @@ static int __devinit of_flash_probe(struct platform_device *dev) struct mtd_info **mtd_list = NULL; resource_size_t res_size; - if (!dev->dev.of_match) + match = of_match_device(of_flash_match, &dev->dev); + if (!match) return -EINVAL; - probe_type = dev->dev.of_match->data; + probe_type = match->data; reg_tuple_size = (of_n_addr_cells(dp) + of_n_size_cells(dp)) * sizeof(u32); diff --git a/drivers/mtd/nand/au1550nd.c b/drivers/mtd/nand/au1550nd.c index 3ffe05db492..5d513b54a7d 100644 --- a/drivers/mtd/nand/au1550nd.c +++ b/drivers/mtd/nand/au1550nd.c @@ -10,6 +10,7 @@ */ #include <linux/slab.h> +#include <linux/gpio.h> #include <linux/init.h> #include <linux/module.h> #include <linux/interrupt.h> @@ -470,7 +471,7 @@ static int __init au1xxx_nand_init(void) #ifdef CONFIG_MIPS_PB1550 /* set gpio206 high */ - au_writel(au_readl(GPIO2_DIR) & ~(1 << 6), GPIO2_DIR); + gpio_direction_input(206); boot_swapboot = (au_readl(MEM_STSTAT) & (0x7 << 1)) | ((bcsr_read(BCSR_STATUS) >> 6) & 0x1); diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index dc280bc8eba..19f04a34783 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -2017,6 +2017,13 @@ config FTMAC100 from Faraday. It is used on Faraday A320, Andes AG101 and some other ARM/NDS32 SoC's. +config LANTIQ_ETOP + tristate "Lantiq SoC ETOP driver" + depends on SOC_TYPE_XWAY + help + Support for the MII0 inside the Lantiq SoC + + source "drivers/net/fs_enet/Kconfig" source "drivers/net/octeon/Kconfig" @@ -2536,7 +2543,7 @@ config S6GMAC source "drivers/net/stmmac/Kconfig" config PCH_GBE - tristate "PCH Gigabit Ethernet" + tristate "Intel EG20T PCH / OKI SEMICONDUCTOR ML7223 IOH GbE" depends on PCI select MII ---help--- @@ -2548,6 +2555,12 @@ config PCH_GBE to Gigabit Ethernet. This driver enables Gigabit Ethernet function. + This driver also can be used for OKI SEMICONDUCTOR IOH(Input/ + Output Hub), ML7223. + ML7223 IOH is for MP(Media Phone) use. + ML7223 is companion chip for Intel Atom E6xx series. + ML7223 is completely compatible for Intel EG20T PCH. + endif # NETDEV_1000 # diff --git a/drivers/net/Makefile b/drivers/net/Makefile index 01b604ad155..209fbb70619 100644 --- a/drivers/net/Makefile +++ b/drivers/net/Makefile @@ -144,7 +144,7 @@ obj-$(CONFIG_NE3210) += ne3210.o 8390.o obj-$(CONFIG_SB1250_MAC) += sb1250-mac.o obj-$(CONFIG_B44) += b44.o obj-$(CONFIG_FORCEDETH) += forcedeth.o -obj-$(CONFIG_NE_H8300) += ne-h8300.o 8390.o +obj-$(CONFIG_NE_H8300) += ne-h8300.o obj-$(CONFIG_AX88796) += ax88796.o obj-$(CONFIG_BCM63XX_ENET) += bcm63xx_enet.o obj-$(CONFIG_FTMAC100) += ftmac100.o @@ -219,7 +219,7 @@ obj-$(CONFIG_SC92031) += sc92031.o obj-$(CONFIG_LP486E) += lp486e.o obj-$(CONFIG_ETH16I) += eth16i.o -obj-$(CONFIG_ZORRO8390) += zorro8390.o 8390.o +obj-$(CONFIG_ZORRO8390) += zorro8390.o obj-$(CONFIG_HPLANCE) += hplance.o 7990.o obj-$(CONFIG_MVME147_NET) += mvme147.o 7990.o obj-$(CONFIG_EQUALIZER) += eql.o @@ -231,7 +231,7 @@ obj-$(CONFIG_SGI_IOC3_ETH) += ioc3-eth.o obj-$(CONFIG_DECLANCE) += declance.o obj-$(CONFIG_ATARILANCE) += atarilance.o obj-$(CONFIG_A2065) += a2065.o -obj-$(CONFIG_HYDRA) += hydra.o 8390.o +obj-$(CONFIG_HYDRA) += hydra.o obj-$(CONFIG_ARIADNE) += ariadne.o obj-$(CONFIG_CS89x0) += cs89x0.o obj-$(CONFIG_MACSONIC) += macsonic.o @@ -259,6 +259,7 @@ obj-$(CONFIG_MLX4_CORE) += mlx4/ obj-$(CONFIG_ENC28J60) += enc28j60.o obj-$(CONFIG_ETHOC) += ethoc.o obj-$(CONFIG_GRETH) += greth.o +obj-$(CONFIG_LANTIQ_ETOP) += lantiq_etop.o obj-$(CONFIG_XTENSA_XT2000_SONIC) += xtsonic.o diff --git a/drivers/net/arm/etherh.c b/drivers/net/arm/etherh.c index 4af235d41fd..fbfb5b47c50 100644 --- a/drivers/net/arm/etherh.c +++ b/drivers/net/arm/etherh.c @@ -527,7 +527,7 @@ static void __init etherh_banner(void) * Read the ethernet address string from the on board rom. * This is an ascii string... */ -static int __init etherh_addr(char *addr, struct expansion_card *ec) +static int __devinit etherh_addr(char *addr, struct expansion_card *ec) { struct in_chunk_dir cd; char *s; @@ -655,7 +655,7 @@ static const struct net_device_ops etherh_netdev_ops = { static u32 etherh_regoffsets[16]; static u32 etherm_regoffsets[16]; -static int __init +static int __devinit etherh_probe(struct expansion_card *ec, const struct ecard_id *id) { const struct etherh_data *data = id->data; diff --git a/drivers/net/atarilance.c b/drivers/net/atarilance.c index ce0091eb06f..1264d781b55 100644 --- a/drivers/net/atarilance.c +++ b/drivers/net/atarilance.c @@ -554,7 +554,7 @@ static unsigned long __init lance_probe1( struct net_device *dev, memaddr == (unsigned short *)0xffe00000) { /* PAMs card and Riebl on ST use level 5 autovector */ if (request_irq(IRQ_AUTO_5, lance_interrupt, IRQ_TYPE_PRIO, - "PAM/Riebl-ST Ethernet", dev)) { + "PAM,Riebl-ST Ethernet", dev)) { printk( "Lance: request for irq %d failed\n", IRQ_AUTO_5 ); return 0; } diff --git a/drivers/net/benet/be.h b/drivers/net/benet/be.h index 66823eded7a..2353eca3259 100644 --- a/drivers/net/benet/be.h +++ b/drivers/net/benet/be.h @@ -213,7 +213,7 @@ struct be_rx_stats { struct be_rx_compl_info { u32 rss_hash; - u16 vid; + u16 vlan_tag; u16 pkt_size; u16 rxq_idx; u16 mac_id; diff --git a/drivers/net/benet/be_cmds.c b/drivers/net/benet/be_cmds.c index 1e2d825bb94..9dc9394fd4c 100644 --- a/drivers/net/benet/be_cmds.c +++ b/drivers/net/benet/be_cmds.c @@ -132,7 +132,7 @@ static void be_async_grp5_pvid_state_process(struct be_adapter *adapter, struct be_async_event_grp5_pvid_state *evt) { if (evt->enabled) - adapter->pvid = evt->tag; + adapter->pvid = le16_to_cpu(evt->tag); else adapter->pvid = 0; } diff --git a/drivers/net/benet/be_main.c b/drivers/net/benet/be_main.c index 02a0443d182..9187fb4e08f 100644 --- a/drivers/net/benet/be_main.c +++ b/drivers/net/benet/be_main.c @@ -1018,7 +1018,8 @@ static void be_rx_compl_process(struct be_adapter *adapter, kfree_skb(skb); return; } - vlan_hwaccel_receive_skb(skb, adapter->vlan_grp, rxcp->vid); + vlan_hwaccel_receive_skb(skb, adapter->vlan_grp, + rxcp->vlan_tag); } else { netif_receive_skb(skb); } @@ -1076,7 +1077,8 @@ static void be_rx_compl_process_gro(struct be_adapter *adapter, if (likely(!rxcp->vlanf)) napi_gro_frags(&eq_obj->napi); else - vlan_gro_frags(&eq_obj->napi, adapter->vlan_grp, rxcp->vid); + vlan_gro_frags(&eq_obj->napi, adapter->vlan_grp, + rxcp->vlan_tag); } static void be_parse_rx_compl_v1(struct be_adapter *adapter, @@ -1102,7 +1104,8 @@ static void be_parse_rx_compl_v1(struct be_adapter *adapter, rxcp->pkt_type = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, cast_enc, compl); rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtm, compl); - rxcp->vid = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vlan_tag, compl); + rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vlan_tag, + compl); } static void be_parse_rx_compl_v0(struct be_adapter *adapter, @@ -1128,7 +1131,8 @@ static void be_parse_rx_compl_v0(struct be_adapter *adapter, rxcp->pkt_type = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, cast_enc, compl); rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtm, compl); - rxcp->vid = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vlan_tag, compl); + rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vlan_tag, + compl); } static struct be_rx_compl_info *be_rx_compl_get(struct be_rx_obj *rxo) @@ -1155,9 +1159,11 @@ static struct be_rx_compl_info *be_rx_compl_get(struct be_rx_obj *rxo) rxcp->vlanf = 0; if (!lancer_chip(adapter)) - rxcp->vid = swab16(rxcp->vid); + rxcp->vlan_tag = swab16(rxcp->vlan_tag); - if ((adapter->pvid == rxcp->vid) && !adapter->vlan_tag[rxcp->vid]) + if (((adapter->pvid & VLAN_VID_MASK) == + (rxcp->vlan_tag & VLAN_VID_MASK)) && + !adapter->vlan_tag[rxcp->vlan_tag]) rxcp->vlanf = 0; /* As the compl has been parsed, reset it; we wont touch it again */ diff --git a/drivers/net/bonding/bond_3ad.h b/drivers/net/bonding/bond_3ad.h index b28baff7086..01b8a6af275 100644 --- a/drivers/net/bonding/bond_3ad.h +++ b/drivers/net/bonding/bond_3ad.h @@ -39,7 +39,7 @@ typedef struct mac_addr { u8 mac_addr_value[ETH_ALEN]; -} mac_addr_t; +} __packed mac_addr_t; enum { BOND_AD_STABLE = 0, @@ -134,12 +134,12 @@ typedef struct lacpdu { u8 tlv_type_terminator; // = terminator u8 terminator_length; // = 0 u8 reserved_50[50]; // = 0 -} lacpdu_t; +} __packed lacpdu_t; typedef struct lacpdu_header { struct ethhdr hdr; struct lacpdu lacpdu; -} lacpdu_header_t; +} __packed lacpdu_header_t; // Marker Protocol Data Unit(PDU) structure(43.5.3.2 in the 802.3ad standard) typedef struct bond_marker { @@ -155,12 +155,12 @@ typedef struct bond_marker { u8 tlv_type_terminator; // = 0x00 u8 terminator_length; // = 0x00 u8 reserved_90[90]; // = 0 -} bond_marker_t; +} __packed bond_marker_t; typedef struct bond_marker_header { struct ethhdr hdr; struct bond_marker marker; -} bond_marker_header_t; +} __packed bond_marker_header_t; #pragma pack() diff --git a/drivers/net/can/mscan/mpc5xxx_can.c b/drivers/net/can/mscan/mpc5xxx_can.c index bd1d811c204..5fedc337556 100644 --- a/drivers/net/can/mscan/mpc5xxx_can.c +++ b/drivers/net/can/mscan/mpc5xxx_can.c @@ -247,8 +247,10 @@ static u32 __devinit mpc512x_can_get_clock(struct platform_device *ofdev, } #endif /* CONFIG_PPC_MPC512x */ +static struct of_device_id mpc5xxx_can_table[]; static int __devinit mpc5xxx_can_probe(struct platform_device *ofdev) { + const struct of_device_id *match; struct mpc5xxx_can_data *data; struct device_node *np = ofdev->dev.of_node; struct net_device *dev; @@ -258,9 +260,10 @@ static int __devinit mpc5xxx_can_probe(struct platform_device *ofdev) int irq, mscan_clksrc = 0; int err = -ENOMEM; - if (!ofdev->dev.of_match) + match = of_match_device(mpc5xxx_can_table, &ofdev->dev); + if (!match) return -EINVAL; - data = (struct mpc5xxx_can_data *)ofdev->dev.of_match->data; + data = match->data; base = of_iomap(np, 0); if (!base) { diff --git a/drivers/net/can/sja1000/sja1000.c b/drivers/net/can/sja1000/sja1000.c index a358ea9445a..f501bba1fc6 100644 --- a/drivers/net/can/sja1000/sja1000.c +++ b/drivers/net/can/sja1000/sja1000.c @@ -346,10 +346,10 @@ static void sja1000_rx(struct net_device *dev) | (priv->read_reg(priv, REG_ID2) >> 5); } + cf->can_dlc = get_can_dlc(fi & 0x0F); if (fi & FI_RTR) { id |= CAN_RTR_FLAG; } else { - cf->can_dlc = get_can_dlc(fi & 0x0F); for (i = 0; i < cf->can_dlc; i++) cf->data[i] = priv->read_reg(priv, dreg++); } diff --git a/drivers/net/can/slcan.c b/drivers/net/can/slcan.c index b423965a78d..1b49df6b247 100644 --- a/drivers/net/can/slcan.c +++ b/drivers/net/can/slcan.c @@ -583,7 +583,9 @@ static int slcan_open(struct tty_struct *tty) /* Done. We have linked the TTY line to a channel. */ rtnl_unlock(); tty->receive_room = 65536; /* We don't flow control */ - return sl->dev->base_addr; + + /* TTY layer expects 0 on success */ + return 0; err_free_chan: sl->tty = NULL; diff --git a/drivers/net/ehea/ehea_ethtool.c b/drivers/net/ehea/ehea_ethtool.c index 3e2e734fecb..f3bbdcef338 100644 --- a/drivers/net/ehea/ehea_ethtool.c +++ b/drivers/net/ehea/ehea_ethtool.c @@ -55,15 +55,20 @@ static int ehea_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) cmd->duplex = -1; } - cmd->supported = (SUPPORTED_10000baseT_Full | SUPPORTED_1000baseT_Full - | SUPPORTED_100baseT_Full | SUPPORTED_100baseT_Half - | SUPPORTED_10baseT_Full | SUPPORTED_10baseT_Half - | SUPPORTED_Autoneg | SUPPORTED_FIBRE); - - cmd->advertising = (ADVERTISED_10000baseT_Full | ADVERTISED_Autoneg - | ADVERTISED_FIBRE); + if (cmd->speed == SPEED_10000) { + cmd->supported = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE); + cmd->advertising = (ADVERTISED_10000baseT_Full | ADVERTISED_FIBRE); + cmd->port = PORT_FIBRE; + } else { + cmd->supported = (SUPPORTED_1000baseT_Full | SUPPORTED_100baseT_Full + | SUPPORTED_100baseT_Half | SUPPORTED_10baseT_Full + | SUPPORTED_10baseT_Half | SUPPORTED_Autoneg + | SUPPORTED_TP); + cmd->advertising = (ADVERTISED_1000baseT_Full | ADVERTISED_Autoneg + | ADVERTISED_TP); + cmd->port = PORT_TP; + } - cmd->port = PORT_FIBRE; cmd->autoneg = port->autoneg == 1 ? AUTONEG_ENABLE : AUTONEG_DISABLE; return 0; diff --git a/drivers/net/ehea/ehea_main.c b/drivers/net/ehea/ehea_main.c index 53c0f04b1b2..cf79cf759e1 100644 --- a/drivers/net/ehea/ehea_main.c +++ b/drivers/net/ehea/ehea_main.c @@ -2688,9 +2688,6 @@ static int ehea_open(struct net_device *dev) netif_start_queue(dev); } - init_waitqueue_head(&port->swqe_avail_wq); - init_waitqueue_head(&port->restart_wq); - mutex_unlock(&port->port_lock); return ret; @@ -3276,6 +3273,9 @@ struct ehea_port *ehea_setup_single_port(struct ehea_adapter *adapter, INIT_WORK(&port->reset_task, ehea_reset_port); + init_waitqueue_head(&port->swqe_avail_wq); + init_waitqueue_head(&port->restart_wq); + ret = register_netdev(dev); if (ret) { pr_err("register_netdev failed. ret=%d\n", ret); diff --git a/drivers/net/fs_enet/fs_enet-main.c b/drivers/net/fs_enet/fs_enet-main.c index 24cb953900d..5131e61c358 100644 --- a/drivers/net/fs_enet/fs_enet-main.c +++ b/drivers/net/fs_enet/fs_enet-main.c @@ -998,8 +998,10 @@ static const struct net_device_ops fs_enet_netdev_ops = { #endif }; +static struct of_device_id fs_enet_match[]; static int __devinit fs_enet_probe(struct platform_device *ofdev) { + const struct of_device_id *match; struct net_device *ndev; struct fs_enet_private *fep; struct fs_platform_info *fpi; @@ -1007,14 +1009,15 @@ static int __devinit fs_enet_probe(struct platform_device *ofdev) const u8 *mac_addr; int privsize, len, ret = -ENODEV; - if (!ofdev->dev.of_match) + match = of_match_device(fs_enet_match, &ofdev->dev); + if (!match) return -EINVAL; fpi = kzalloc(sizeof(*fpi), GFP_KERNEL); if (!fpi) return -ENOMEM; - if (!IS_FEC(ofdev->dev.of_match)) { + if (!IS_FEC(match)) { data = of_get_property(ofdev->dev.of_node, "fsl,cpm-command", &len); if (!data || len != 4) goto out_free_fpi; @@ -1049,7 +1052,7 @@ static int __devinit fs_enet_probe(struct platform_device *ofdev) fep->dev = &ofdev->dev; fep->ndev = ndev; fep->fpi = fpi; - fep->ops = ofdev->dev.of_match->data; + fep->ops = match->data; ret = fep->ops->setup_data(ndev); if (ret) diff --git a/drivers/net/fs_enet/mii-fec.c b/drivers/net/fs_enet/mii-fec.c index 7e840d373ab..6a2e150e75b 100644 --- a/drivers/net/fs_enet/mii-fec.c +++ b/drivers/net/fs_enet/mii-fec.c @@ -101,17 +101,20 @@ static int fs_enet_fec_mii_reset(struct mii_bus *bus) return 0; } +static struct of_device_id fs_enet_mdio_fec_match[]; static int __devinit fs_enet_mdio_probe(struct platform_device *ofdev) { + const struct of_device_id *match; struct resource res; struct mii_bus *new_bus; struct fec_info *fec; int (*get_bus_freq)(struct device_node *); int ret = -ENOMEM, clock, speed; - if (!ofdev->dev.of_match) + match = of_match_device(fs_enet_mdio_fec_match, &ofdev->dev); + if (!match) return -EINVAL; - get_bus_freq = ofdev->dev.of_match->data; + get_bus_freq = match->data; new_bus = mdiobus_alloc(); if (!new_bus) diff --git a/drivers/net/hydra.c b/drivers/net/hydra.c index c5ef62ceb84..1cd481c0420 100644 --- a/drivers/net/hydra.c +++ b/drivers/net/hydra.c @@ -98,15 +98,15 @@ static const struct net_device_ops hydra_netdev_ops = { .ndo_open = hydra_open, .ndo_stop = hydra_close, - .ndo_start_xmit = ei_start_xmit, - .ndo_tx_timeout = ei_tx_timeout, - .ndo_get_stats = ei_get_stats, - .ndo_set_multicast_list = ei_set_multicast_list, + .ndo_start_xmit = __ei_start_xmit, + .ndo_tx_timeout = __ei_tx_timeout, + .ndo_get_stats = __ei_get_stats, + .ndo_set_multicast_list = __ei_set_multicast_list, .ndo_validate_addr = eth_validate_addr, - .ndo_set_mac_address = eth_mac_addr, + .ndo_set_mac_address = eth_mac_addr, .ndo_change_mtu = eth_change_mtu, #ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = ei_poll, + .ndo_poll_controller = __ei_poll, #endif }; @@ -125,7 +125,7 @@ static int __devinit hydra_init(struct zorro_dev *z) 0x10, 0x12, 0x14, 0x16, 0x18, 0x1a, 0x1c, 0x1e, }; - dev = alloc_ei_netdev(); + dev = ____alloc_ei_netdev(0); if (!dev) return -ENOMEM; diff --git a/drivers/net/lantiq_etop.c b/drivers/net/lantiq_etop.c new file mode 100644 index 00000000000..45f252b7da3 --- /dev/null +++ b/drivers/net/lantiq_etop.c @@ -0,0 +1,805 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. + * + * Copyright (C) 2011 John Crispin <blogic@openwrt.org> + */ + +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/errno.h> +#include <linux/types.h> +#include <linux/interrupt.h> +#include <linux/uaccess.h> +#include <linux/in.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/phy.h> +#include <linux/ip.h> +#include <linux/tcp.h> +#include <linux/skbuff.h> +#include <linux/mm.h> +#include <linux/platform_device.h> +#include <linux/ethtool.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/io.h> + +#include <asm/checksum.h> + +#include <lantiq_soc.h> +#include <xway_dma.h> +#include <lantiq_platform.h> + +#define LTQ_ETOP_MDIO 0x11804 +#define MDIO_REQUEST 0x80000000 +#define MDIO_READ 0x40000000 +#define MDIO_ADDR_MASK 0x1f +#define MDIO_ADDR_OFFSET 0x15 +#define MDIO_REG_MASK 0x1f +#define MDIO_REG_OFFSET 0x10 +#define MDIO_VAL_MASK 0xffff + +#define PPE32_CGEN 0x800 +#define LQ_PPE32_ENET_MAC_CFG 0x1840 + +#define LTQ_ETOP_ENETS0 0x11850 +#define LTQ_ETOP_MAC_DA0 0x1186C +#define LTQ_ETOP_MAC_DA1 0x11870 +#define LTQ_ETOP_CFG 0x16020 +#define LTQ_ETOP_IGPLEN 0x16080 + +#define MAX_DMA_CHAN 0x8 +#define MAX_DMA_CRC_LEN 0x4 +#define MAX_DMA_DATA_LEN 0x600 + +#define ETOP_FTCU BIT(28) +#define ETOP_MII_MASK 0xf +#define ETOP_MII_NORMAL 0xd +#define ETOP_MII_REVERSE 0xe +#define ETOP_PLEN_UNDER 0x40 +#define ETOP_CGEN 0x800 + +/* use 2 static channels for TX/RX */ +#define LTQ_ETOP_TX_CHANNEL 1 +#define LTQ_ETOP_RX_CHANNEL 6 +#define IS_TX(x) (x == LTQ_ETOP_TX_CHANNEL) +#define IS_RX(x) (x == LTQ_ETOP_RX_CHANNEL) + +#define ltq_etop_r32(x) ltq_r32(ltq_etop_membase + (x)) +#define ltq_etop_w32(x, y) ltq_w32(x, ltq_etop_membase + (y)) +#define ltq_etop_w32_mask(x, y, z) \ + ltq_w32_mask(x, y, ltq_etop_membase + (z)) + +#define DRV_VERSION "1.0" + +static void __iomem *ltq_etop_membase; + +struct ltq_etop_chan { + int idx; + int tx_free; + struct net_device *netdev; + struct napi_struct napi; + struct ltq_dma_channel dma; + struct sk_buff *skb[LTQ_DESC_NUM]; +}; + +struct ltq_etop_priv { + struct net_device *netdev; + struct ltq_eth_data *pldata; + struct resource *res; + + struct mii_bus *mii_bus; + struct phy_device *phydev; + + struct ltq_etop_chan ch[MAX_DMA_CHAN]; + int tx_free[MAX_DMA_CHAN >> 1]; + + spinlock_t lock; +}; + +static int +ltq_etop_alloc_skb(struct ltq_etop_chan *ch) +{ + ch->skb[ch->dma.desc] = dev_alloc_skb(MAX_DMA_DATA_LEN); + if (!ch->skb[ch->dma.desc]) + return -ENOMEM; + ch->dma.desc_base[ch->dma.desc].addr = dma_map_single(NULL, + ch->skb[ch->dma.desc]->data, MAX_DMA_DATA_LEN, + DMA_FROM_DEVICE); + ch->dma.desc_base[ch->dma.desc].addr = + CPHYSADDR(ch->skb[ch->dma.desc]->data); + ch->dma.desc_base[ch->dma.desc].ctl = + LTQ_DMA_OWN | LTQ_DMA_RX_OFFSET(NET_IP_ALIGN) | + MAX_DMA_DATA_LEN; + skb_reserve(ch->skb[ch->dma.desc], NET_IP_ALIGN); + return 0; +} + +static void +ltq_etop_hw_receive(struct ltq_etop_chan *ch) +{ + struct ltq_etop_priv *priv = netdev_priv(ch->netdev); + struct ltq_dma_desc *desc = &ch->dma.desc_base[ch->dma.desc]; + struct sk_buff *skb = ch->skb[ch->dma.desc]; + int len = (desc->ctl & LTQ_DMA_SIZE_MASK) - MAX_DMA_CRC_LEN; + unsigned long flags; + + spin_lock_irqsave(&priv->lock, flags); + if (ltq_etop_alloc_skb(ch)) { + netdev_err(ch->netdev, + "failed to allocate new rx buffer, stopping DMA\n"); + ltq_dma_close(&ch->dma); + } + ch->dma.desc++; + ch->dma.desc %= LTQ_DESC_NUM; + spin_unlock_irqrestore(&priv->lock, flags); + + skb_put(skb, len); + skb->dev = ch->netdev; + skb->protocol = eth_type_trans(skb, ch->netdev); + netif_receive_skb(skb); +} + +static int +ltq_etop_poll_rx(struct napi_struct *napi, int budget) +{ + struct ltq_etop_chan *ch = container_of(napi, + struct ltq_etop_chan, napi); + int rx = 0; + int complete = 0; + + while ((rx < budget) && !complete) { + struct ltq_dma_desc *desc = &ch->dma.desc_base[ch->dma.desc]; + + if ((desc->ctl & (LTQ_DMA_OWN | LTQ_DMA_C)) == LTQ_DMA_C) { + ltq_etop_hw_receive(ch); + rx++; + } else { + complete = 1; + } + } + if (complete || !rx) { + napi_complete(&ch->napi); + ltq_dma_ack_irq(&ch->dma); + } + return rx; +} + +static int +ltq_etop_poll_tx(struct napi_struct *napi, int budget) +{ + struct ltq_etop_chan *ch = + container_of(napi, struct ltq_etop_chan, napi); + struct ltq_etop_priv *priv = netdev_priv(ch->netdev); + struct netdev_queue *txq = + netdev_get_tx_queue(ch->netdev, ch->idx >> 1); + unsigned long flags; + + spin_lock_irqsave(&priv->lock, flags); + while ((ch->dma.desc_base[ch->tx_free].ctl & + (LTQ_DMA_OWN | LTQ_DMA_C)) == LTQ_DMA_C) { + dev_kfree_skb_any(ch->skb[ch->tx_free]); + ch->skb[ch->tx_free] = NULL; + memset(&ch->dma.desc_base[ch->tx_free], 0, + sizeof(struct ltq_dma_desc)); + ch->tx_free++; + ch->tx_free %= LTQ_DESC_NUM; + } + spin_unlock_irqrestore(&priv->lock, flags); + + if (netif_tx_queue_stopped(txq)) + netif_tx_start_queue(txq); + napi_complete(&ch->napi); + ltq_dma_ack_irq(&ch->dma); + return 1; +} + +static irqreturn_t +ltq_etop_dma_irq(int irq, void *_priv) +{ + struct ltq_etop_priv *priv = _priv; + int ch = irq - LTQ_DMA_CH0_INT; + + napi_schedule(&priv->ch[ch].napi); + return IRQ_HANDLED; +} + +static void +ltq_etop_free_channel(struct net_device *dev, struct ltq_etop_chan *ch) +{ + struct ltq_etop_priv *priv = netdev_priv(dev); + + ltq_dma_free(&ch->dma); + if (ch->dma.irq) + free_irq(ch->dma.irq, priv); + if (IS_RX(ch->idx)) { + int desc; + for (desc = 0; desc < LTQ_DESC_NUM; desc++) + dev_kfree_skb_any(ch->skb[ch->dma.desc]); + } +} + +static void +ltq_etop_hw_exit(struct net_device *dev) +{ + struct ltq_etop_priv *priv = netdev_priv(dev); + int i; + + ltq_pmu_disable(PMU_PPE); + for (i = 0; i < MAX_DMA_CHAN; i++) + if (IS_TX(i) || IS_RX(i)) + ltq_etop_free_channel(dev, &priv->ch[i]); +} + +static int +ltq_etop_hw_init(struct net_device *dev) +{ + struct ltq_etop_priv *priv = netdev_priv(dev); + int i; + + ltq_pmu_enable(PMU_PPE); + + switch (priv->pldata->mii_mode) { + case PHY_INTERFACE_MODE_RMII: + ltq_etop_w32_mask(ETOP_MII_MASK, + ETOP_MII_REVERSE, LTQ_ETOP_CFG); + break; + + case PHY_INTERFACE_MODE_MII: + ltq_etop_w32_mask(ETOP_MII_MASK, + ETOP_MII_NORMAL, LTQ_ETOP_CFG); + break; + + default: + netdev_err(dev, "unknown mii mode %d\n", + priv->pldata->mii_mode); + return -ENOTSUPP; + } + + /* enable crc generation */ + ltq_etop_w32(PPE32_CGEN, LQ_PPE32_ENET_MAC_CFG); + + ltq_dma_init_port(DMA_PORT_ETOP); + + for (i = 0; i < MAX_DMA_CHAN; i++) { + int irq = LTQ_DMA_CH0_INT + i; + struct ltq_etop_chan *ch = &priv->ch[i]; + + ch->idx = ch->dma.nr = i; + + if (IS_TX(i)) { + ltq_dma_alloc_tx(&ch->dma); + request_irq(irq, ltq_etop_dma_irq, IRQF_DISABLED, + "etop_tx", priv); + } else if (IS_RX(i)) { + ltq_dma_alloc_rx(&ch->dma); + for (ch->dma.desc = 0; ch->dma.desc < LTQ_DESC_NUM; + ch->dma.desc++) + if (ltq_etop_alloc_skb(ch)) + return -ENOMEM; + ch->dma.desc = 0; + request_irq(irq, ltq_etop_dma_irq, IRQF_DISABLED, + "etop_rx", priv); + } + ch->dma.irq = irq; + } + return 0; +} + +static void +ltq_etop_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) +{ + strcpy(info->driver, "Lantiq ETOP"); + strcpy(info->bus_info, "internal"); + strcpy(info->version, DRV_VERSION); +} + +static int +ltq_etop_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) +{ + struct ltq_etop_priv *priv = netdev_priv(dev); + + return phy_ethtool_gset(priv->phydev, cmd); +} + +static int +ltq_etop_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) +{ + struct ltq_etop_priv *priv = netdev_priv(dev); + + return phy_ethtool_sset(priv->phydev, cmd); +} + +static int +ltq_etop_nway_reset(struct net_device *dev) +{ + struct ltq_etop_priv *priv = netdev_priv(dev); + + return phy_start_aneg(priv->phydev); +} + +static const struct ethtool_ops ltq_etop_ethtool_ops = { + .get_drvinfo = ltq_etop_get_drvinfo, + .get_settings = ltq_etop_get_settings, + .set_settings = ltq_etop_set_settings, + .nway_reset = ltq_etop_nway_reset, +}; + +static int +ltq_etop_mdio_wr(struct mii_bus *bus, int phy_addr, int phy_reg, u16 phy_data) +{ + u32 val = MDIO_REQUEST | + ((phy_addr & MDIO_ADDR_MASK) << MDIO_ADDR_OFFSET) | + ((phy_reg & MDIO_REG_MASK) << MDIO_REG_OFFSET) | + phy_data; + + while (ltq_etop_r32(LTQ_ETOP_MDIO) & MDIO_REQUEST) + ; + ltq_etop_w32(val, LTQ_ETOP_MDIO); + return 0; +} + +static int +ltq_etop_mdio_rd(struct mii_bus *bus, int phy_addr, int phy_reg) +{ + u32 val = MDIO_REQUEST | MDIO_READ | + ((phy_addr & MDIO_ADDR_MASK) << MDIO_ADDR_OFFSET) | + ((phy_reg & MDIO_REG_MASK) << MDIO_REG_OFFSET); + + while (ltq_etop_r32(LTQ_ETOP_MDIO) & MDIO_REQUEST) + ; + ltq_etop_w32(val, LTQ_ETOP_MDIO); + while (ltq_etop_r32(LTQ_ETOP_MDIO) & MDIO_REQUEST) + ; + val = ltq_etop_r32(LTQ_ETOP_MDIO) & MDIO_VAL_MASK; + return val; +} + +static void +ltq_etop_mdio_link(struct net_device *dev) +{ + /* nothing to do */ +} + +static int +ltq_etop_mdio_probe(struct net_device *dev) +{ + struct ltq_etop_priv *priv = netdev_priv(dev); + struct phy_device *phydev = NULL; + int phy_addr; + + for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) { + if (priv->mii_bus->phy_map[phy_addr]) { + phydev = priv->mii_bus->phy_map[phy_addr]; + break; + } + } + + if (!phydev) { + netdev_err(dev, "no PHY found\n"); + return -ENODEV; + } + + phydev = phy_connect(dev, dev_name(&phydev->dev), <q_etop_mdio_link, + 0, priv->pldata->mii_mode); + + if (IS_ERR(phydev)) { + netdev_err(dev, "Could not attach to PHY\n"); + return PTR_ERR(phydev); + } + + phydev->supported &= (SUPPORTED_10baseT_Half + | SUPPORTED_10baseT_Full + | SUPPORTED_100baseT_Half + | SUPPORTED_100baseT_Full + | SUPPORTED_Autoneg + | SUPPORTED_MII + | SUPPORTED_TP); + + phydev->advertising = phydev->supported; + priv->phydev = phydev; + pr_info("%s: attached PHY [%s] (phy_addr=%s, irq=%d)\n", + dev->name, phydev->drv->name, + dev_name(&phydev->dev), phydev->irq); + + return 0; +} + +static int +ltq_etop_mdio_init(struct net_device *dev) +{ + struct ltq_etop_priv *priv = netdev_priv(dev); + int i; + int err; + + priv->mii_bus = mdiobus_alloc(); + if (!priv->mii_bus) { + netdev_err(dev, "failed to allocate mii bus\n"); + err = -ENOMEM; + goto err_out; + } + + priv->mii_bus->priv = dev; + priv->mii_bus->read = ltq_etop_mdio_rd; + priv->mii_bus->write = ltq_etop_mdio_wr; + priv->mii_bus->name = "ltq_mii"; + snprintf(priv->mii_bus->id, MII_BUS_ID_SIZE, "%x", 0); + priv->mii_bus->irq = kmalloc(sizeof(int) * PHY_MAX_ADDR, GFP_KERNEL); + if (!priv->mii_bus->irq) { + err = -ENOMEM; + goto err_out_free_mdiobus; + } + + for (i = 0; i < PHY_MAX_ADDR; ++i) + priv->mii_bus->irq[i] = PHY_POLL; + + if (mdiobus_register(priv->mii_bus)) { + err = -ENXIO; + goto err_out_free_mdio_irq; + } + + if (ltq_etop_mdio_probe(dev)) { + err = -ENXIO; + goto err_out_unregister_bus; + } + return 0; + +err_out_unregister_bus: + mdiobus_unregister(priv->mii_bus); +err_out_free_mdio_irq: + kfree(priv->mii_bus->irq); +err_out_free_mdiobus: + mdiobus_free(priv->mii_bus); +err_out: + return err; +} + +static void +ltq_etop_mdio_cleanup(struct net_device *dev) +{ + struct ltq_etop_priv *priv = netdev_priv(dev); + + phy_disconnect(priv->phydev); + mdiobus_unregister(priv->mii_bus); + kfree(priv->mii_bus->irq); + mdiobus_free(priv->mii_bus); +} + +static int +ltq_etop_open(struct net_device *dev) +{ + struct ltq_etop_priv *priv = netdev_priv(dev); + int i; + + for (i = 0; i < MAX_DMA_CHAN; i++) { + struct ltq_etop_chan *ch = &priv->ch[i]; + + if (!IS_TX(i) && (!IS_RX(i))) + continue; + ltq_dma_open(&ch->dma); + napi_enable(&ch->napi); + } + phy_start(priv->phydev); + netif_tx_start_all_queues(dev); + return 0; +} + +static int +ltq_etop_stop(struct net_device *dev) +{ + struct ltq_etop_priv *priv = netdev_priv(dev); + int i; + + netif_tx_stop_all_queues(dev); + phy_stop(priv->phydev); + for (i = 0; i < MAX_DMA_CHAN; i++) { + struct ltq_etop_chan *ch = &priv->ch[i]; + + if (!IS_RX(i) && !IS_TX(i)) + continue; + napi_disable(&ch->napi); + ltq_dma_close(&ch->dma); + } + return 0; +} + +static int +ltq_etop_tx(struct sk_buff *skb, struct net_device *dev) +{ + int queue = skb_get_queue_mapping(skb); + struct netdev_queue *txq = netdev_get_tx_queue(dev, queue); + struct ltq_etop_priv *priv = netdev_priv(dev); + struct ltq_etop_chan *ch = &priv->ch[(queue << 1) | 1]; + struct ltq_dma_desc *desc = &ch->dma.desc_base[ch->dma.desc]; + int len; + unsigned long flags; + u32 byte_offset; + + len = skb->len < ETH_ZLEN ? ETH_ZLEN : skb->len; + + if ((desc->ctl & (LTQ_DMA_OWN | LTQ_DMA_C)) || ch->skb[ch->dma.desc]) { + dev_kfree_skb_any(skb); + netdev_err(dev, "tx ring full\n"); + netif_tx_stop_queue(txq); + return NETDEV_TX_BUSY; + } + + /* dma needs to start on a 16 byte aligned address */ + byte_offset = CPHYSADDR(skb->data) % 16; + ch->skb[ch->dma.desc] = skb; + + dev->trans_start = jiffies; + + spin_lock_irqsave(&priv->lock, flags); + desc->addr = ((unsigned int) dma_map_single(NULL, skb->data, len, + DMA_TO_DEVICE)) - byte_offset; + wmb(); + desc->ctl = LTQ_DMA_OWN | LTQ_DMA_SOP | LTQ_DMA_EOP | + LTQ_DMA_TX_OFFSET(byte_offset) | (len & LTQ_DMA_SIZE_MASK); + ch->dma.desc++; + ch->dma.desc %= LTQ_DESC_NUM; + spin_unlock_irqrestore(&priv->lock, flags); + + if (ch->dma.desc_base[ch->dma.desc].ctl & LTQ_DMA_OWN) + netif_tx_stop_queue(txq); + + return NETDEV_TX_OK; +} + +static int +ltq_etop_change_mtu(struct net_device *dev, int new_mtu) +{ + int ret = eth_change_mtu(dev, new_mtu); + + if (!ret) { + struct ltq_etop_priv *priv = netdev_priv(dev); + unsigned long flags; + + spin_lock_irqsave(&priv->lock, flags); + ltq_etop_w32((ETOP_PLEN_UNDER << 16) | new_mtu, + LTQ_ETOP_IGPLEN); + spin_unlock_irqrestore(&priv->lock, flags); + } + return ret; +} + +static int +ltq_etop_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) +{ + struct ltq_etop_priv *priv = netdev_priv(dev); + + /* TODO: mii-toll reports "No MII transceiver present!." ?!*/ + return phy_mii_ioctl(priv->phydev, rq, cmd); +} + +static int +ltq_etop_set_mac_address(struct net_device *dev, void *p) +{ + int ret = eth_mac_addr(dev, p); + + if (!ret) { + struct ltq_etop_priv *priv = netdev_priv(dev); + unsigned long flags; + + /* store the mac for the unicast filter */ + spin_lock_irqsave(&priv->lock, flags); + ltq_etop_w32(*((u32 *)dev->dev_addr), LTQ_ETOP_MAC_DA0); + ltq_etop_w32(*((u16 *)&dev->dev_addr[4]) << 16, + LTQ_ETOP_MAC_DA1); + spin_unlock_irqrestore(&priv->lock, flags); + } + return ret; +} + +static void +ltq_etop_set_multicast_list(struct net_device *dev) +{ + struct ltq_etop_priv *priv = netdev_priv(dev); + unsigned long flags; + + /* ensure that the unicast filter is not enabled in promiscious mode */ + spin_lock_irqsave(&priv->lock, flags); + if ((dev->flags & IFF_PROMISC) || (dev->flags & IFF_ALLMULTI)) + ltq_etop_w32_mask(ETOP_FTCU, 0, LTQ_ETOP_ENETS0); + else + ltq_etop_w32_mask(0, ETOP_FTCU, LTQ_ETOP_ENETS0); + spin_unlock_irqrestore(&priv->lock, flags); +} + +static u16 +ltq_etop_select_queue(struct net_device *dev, struct sk_buff *skb) +{ + /* we are currently only using the first queue */ + return 0; +} + +static int +ltq_etop_init(struct net_device *dev) +{ + struct ltq_etop_priv *priv = netdev_priv(dev); + struct sockaddr mac; + int err; + + ether_setup(dev); + dev->watchdog_timeo = 10 * HZ; + err = ltq_etop_hw_init(dev); + if (err) + goto err_hw; + ltq_etop_change_mtu(dev, 1500); + + memcpy(&mac, &priv->pldata->mac, sizeof(struct sockaddr)); + if (!is_valid_ether_addr(mac.sa_data)) { + pr_warn("etop: invalid MAC, using random\n"); + random_ether_addr(mac.sa_data); + } + + err = ltq_etop_set_mac_address(dev, &mac); + if (err) + goto err_netdev; + ltq_etop_set_multicast_list(dev); + err = ltq_etop_mdio_init(dev); + if (err) + goto err_netdev; + return 0; + +err_netdev: + unregister_netdev(dev); + free_netdev(dev); +err_hw: + ltq_etop_hw_exit(dev); + return err; +} + +static void +ltq_etop_tx_timeout(struct net_device *dev) +{ + int err; + + ltq_etop_hw_exit(dev); + err = ltq_etop_hw_init(dev); + if (err) + goto err_hw; + dev->trans_start = jiffies; + netif_wake_queue(dev); + return; + +err_hw: + ltq_etop_hw_exit(dev); + netdev_err(dev, "failed to restart etop after TX timeout\n"); +} + +static const struct net_device_ops ltq_eth_netdev_ops = { + .ndo_open = ltq_etop_open, + .ndo_stop = ltq_etop_stop, + .ndo_start_xmit = ltq_etop_tx, + .ndo_change_mtu = ltq_etop_change_mtu, + .ndo_do_ioctl = ltq_etop_ioctl, + .ndo_set_mac_address = ltq_etop_set_mac_address, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_multicast_list = ltq_etop_set_multicast_list, + .ndo_select_queue = ltq_etop_select_queue, + .ndo_init = ltq_etop_init, + .ndo_tx_timeout = ltq_etop_tx_timeout, +}; + +static int __init +ltq_etop_probe(struct platform_device *pdev) +{ + struct net_device *dev; + struct ltq_etop_priv *priv; + struct resource *res; + int err; + int i; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(&pdev->dev, "failed to get etop resource\n"); + err = -ENOENT; + goto err_out; + } + + res = devm_request_mem_region(&pdev->dev, res->start, + resource_size(res), dev_name(&pdev->dev)); + if (!res) { + dev_err(&pdev->dev, "failed to request etop resource\n"); + err = -EBUSY; + goto err_out; + } + + ltq_etop_membase = devm_ioremap_nocache(&pdev->dev, + res->start, resource_size(res)); + if (!ltq_etop_membase) { + dev_err(&pdev->dev, "failed to remap etop engine %d\n", + pdev->id); + err = -ENOMEM; + goto err_out; + } + + dev = alloc_etherdev_mq(sizeof(struct ltq_etop_priv), 4); + strcpy(dev->name, "eth%d"); + dev->netdev_ops = <q_eth_netdev_ops; + dev->ethtool_ops = <q_etop_ethtool_ops; + priv = netdev_priv(dev); + priv->res = res; + priv->pldata = dev_get_platdata(&pdev->dev); + priv->netdev = dev; + spin_lock_init(&priv->lock); + + for (i = 0; i < MAX_DMA_CHAN; i++) { + if (IS_TX(i)) + netif_napi_add(dev, &priv->ch[i].napi, + ltq_etop_poll_tx, 8); + else if (IS_RX(i)) + netif_napi_add(dev, &priv->ch[i].napi, + ltq_etop_poll_rx, 32); + priv->ch[i].netdev = dev; + } + + err = register_netdev(dev); + if (err) + goto err_free; + + platform_set_drvdata(pdev, dev); + return 0; + +err_free: + kfree(dev); +err_out: + return err; +} + +static int __devexit +ltq_etop_remove(struct platform_device *pdev) +{ + struct net_device *dev = platform_get_drvdata(pdev); + + if (dev) { + netif_tx_stop_all_queues(dev); + ltq_etop_hw_exit(dev); + ltq_etop_mdio_cleanup(dev); + unregister_netdev(dev); + } + return 0; +} + +static struct platform_driver ltq_mii_driver = { + .remove = __devexit_p(ltq_etop_remove), + .driver = { + .name = "ltq_etop", + .owner = THIS_MODULE, + }, +}; + +int __init +init_ltq_etop(void) +{ + int ret = platform_driver_probe(<q_mii_driver, ltq_etop_probe); + + if (ret) + pr_err("ltq_etop: Error registering platfom driver!"); + return ret; +} + +static void __exit +exit_ltq_etop(void) +{ + platform_driver_unregister(<q_mii_driver); +} + +module_init(init_ltq_etop); +module_exit(exit_ltq_etop); + +MODULE_AUTHOR("John Crispin <blogic@openwrt.org>"); +MODULE_DESCRIPTION("Lantiq SoC ETOP"); +MODULE_LICENSE("GPL"); diff --git a/drivers/net/ne-h8300.c b/drivers/net/ne-h8300.c index 30be8c634eb..7298a34bc79 100644 --- a/drivers/net/ne-h8300.c +++ b/drivers/net/ne-h8300.c @@ -167,7 +167,7 @@ static void cleanup_card(struct net_device *dev) #ifndef MODULE struct net_device * __init ne_probe(int unit) { - struct net_device *dev = alloc_ei_netdev(); + struct net_device *dev = ____alloc_ei_netdev(0); int err; if (!dev) @@ -197,15 +197,15 @@ static const struct net_device_ops ne_netdev_ops = { .ndo_open = ne_open, .ndo_stop = ne_close, - .ndo_start_xmit = ei_start_xmit, - .ndo_tx_timeout = ei_tx_timeout, - .ndo_get_stats = ei_get_stats, - .ndo_set_multicast_list = ei_set_multicast_list, + .ndo_start_xmit = __ei_start_xmit, + .ndo_tx_timeout = __ei_tx_timeout, + .ndo_get_stats = __ei_get_stats, + .ndo_set_multicast_list = __ei_set_multicast_list, .ndo_validate_addr = eth_validate_addr, - .ndo_set_mac_address = eth_mac_addr, + .ndo_set_mac_address = eth_mac_addr, .ndo_change_mtu = eth_change_mtu, #ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = ei_poll, + .ndo_poll_controller = __ei_poll, #endif }; @@ -637,7 +637,7 @@ int init_module(void) int err; for (this_dev = 0; this_dev < MAX_NE_CARDS; this_dev++) { - struct net_device *dev = alloc_ei_netdev(); + struct net_device *dev = ____alloc_ei_netdev(0); if (!dev) break; if (io[this_dev]) { diff --git a/drivers/net/pch_gbe/pch_gbe_main.c b/drivers/net/pch_gbe/pch_gbe_main.c index 2ef2f9cdefa..56d049a472d 100644 --- a/drivers/net/pch_gbe/pch_gbe_main.c +++ b/drivers/net/pch_gbe/pch_gbe_main.c @@ -34,6 +34,10 @@ const char pch_driver_version[] = DRV_VERSION; #define PCH_GBE_COPYBREAK_DEFAULT 256 #define PCH_GBE_PCI_BAR 1 +/* Macros for ML7223 */ +#define PCI_VENDOR_ID_ROHM 0x10db +#define PCI_DEVICE_ID_ROHM_ML7223_GBE 0x8013 + #define PCH_GBE_TX_WEIGHT 64 #define PCH_GBE_RX_WEIGHT 64 #define PCH_GBE_RX_BUFFER_WRITE 16 @@ -43,8 +47,7 @@ const char pch_driver_version[] = DRV_VERSION; #define PCH_GBE_MAC_RGMII_CTRL_SETTING ( \ PCH_GBE_CHIP_TYPE_INTERNAL | \ - PCH_GBE_RGMII_MODE_RGMII | \ - PCH_GBE_CRS_SEL \ + PCH_GBE_RGMII_MODE_RGMII \ ) /* Ethertype field values */ @@ -1494,12 +1497,11 @@ pch_gbe_clean_rx(struct pch_gbe_adapter *adapter, /* Write meta date of skb */ skb_put(skb, length); skb->protocol = eth_type_trans(skb, netdev); - if ((tcp_ip_status & PCH_GBE_RXD_ACC_STAT_TCPIPOK) == - PCH_GBE_RXD_ACC_STAT_TCPIPOK) { - skb->ip_summed = CHECKSUM_UNNECESSARY; - } else { + if (tcp_ip_status & PCH_GBE_RXD_ACC_STAT_TCPIPOK) skb->ip_summed = CHECKSUM_NONE; - } + else + skb->ip_summed = CHECKSUM_UNNECESSARY; + napi_gro_receive(&adapter->napi, skb); (*work_done)++; pr_debug("Receive skb->ip_summed: %d length: %d\n", @@ -2420,6 +2422,13 @@ static DEFINE_PCI_DEVICE_TABLE(pch_gbe_pcidev_id) = { .class = (PCI_CLASS_NETWORK_ETHERNET << 8), .class_mask = (0xFFFF00) }, + {.vendor = PCI_VENDOR_ID_ROHM, + .device = PCI_DEVICE_ID_ROHM_ML7223_GBE, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .class = (PCI_CLASS_NETWORK_ETHERNET << 8), + .class_mask = (0xFFFF00) + }, /* required last entry */ {0} }; diff --git a/drivers/net/sfc/mcdi.c b/drivers/net/sfc/mcdi.c index d98479030ef..3dd45ed61f0 100644 --- a/drivers/net/sfc/mcdi.c +++ b/drivers/net/sfc/mcdi.c @@ -50,6 +50,20 @@ static inline struct efx_mcdi_iface *efx_mcdi(struct efx_nic *efx) return &nic_data->mcdi; } +static inline void +efx_mcdi_readd(struct efx_nic *efx, efx_dword_t *value, unsigned reg) +{ + struct siena_nic_data *nic_data = efx->nic_data; + value->u32[0] = (__force __le32)__raw_readl(nic_data->mcdi_smem + reg); +} + +static inline void +efx_mcdi_writed(struct efx_nic *efx, const efx_dword_t *value, unsigned reg) +{ + struct siena_nic_data *nic_data = efx->nic_data; + __raw_writel((__force u32)value->u32[0], nic_data->mcdi_smem + reg); +} + void efx_mcdi_init(struct efx_nic *efx) { struct efx_mcdi_iface *mcdi; @@ -70,8 +84,8 @@ static void efx_mcdi_copyin(struct efx_nic *efx, unsigned cmd, const u8 *inbuf, size_t inlen) { struct efx_mcdi_iface *mcdi = efx_mcdi(efx); - unsigned pdu = FR_CZ_MC_TREG_SMEM + MCDI_PDU(efx); - unsigned doorbell = FR_CZ_MC_TREG_SMEM + MCDI_DOORBELL(efx); + unsigned pdu = MCDI_PDU(efx); + unsigned doorbell = MCDI_DOORBELL(efx); unsigned int i; efx_dword_t hdr; u32 xflags, seqno; @@ -92,30 +106,28 @@ static void efx_mcdi_copyin(struct efx_nic *efx, unsigned cmd, MCDI_HEADER_SEQ, seqno, MCDI_HEADER_XFLAGS, xflags); - efx_writed(efx, &hdr, pdu); + efx_mcdi_writed(efx, &hdr, pdu); - for (i = 0; i < inlen; i += 4) { - _efx_writed(efx, *((__le32 *)(inbuf + i)), pdu + 4 + i); - /* use wmb() within loop to inhibit write combining */ - wmb(); - } + for (i = 0; i < inlen; i += 4) + efx_mcdi_writed(efx, (const efx_dword_t *)(inbuf + i), + pdu + 4 + i); /* ring the doorbell with a distinctive value */ - _efx_writed(efx, (__force __le32) 0x45789abc, doorbell); - wmb(); + EFX_POPULATE_DWORD_1(hdr, EFX_DWORD_0, 0x45789abc); + efx_mcdi_writed(efx, &hdr, doorbell); } static void efx_mcdi_copyout(struct efx_nic *efx, u8 *outbuf, size_t outlen) { struct efx_mcdi_iface *mcdi = efx_mcdi(efx); - unsigned int pdu = FR_CZ_MC_TREG_SMEM + MCDI_PDU(efx); + unsigned int pdu = MCDI_PDU(efx); int i; BUG_ON(atomic_read(&mcdi->state) == MCDI_STATE_QUIESCENT); BUG_ON(outlen & 3 || outlen >= 0x100); for (i = 0; i < outlen; i += 4) - *((__le32 *)(outbuf + i)) = _efx_readd(efx, pdu + 4 + i); + efx_mcdi_readd(efx, (efx_dword_t *)(outbuf + i), pdu + 4 + i); } static int efx_mcdi_poll(struct efx_nic *efx) @@ -123,7 +135,7 @@ static int efx_mcdi_poll(struct efx_nic *efx) struct efx_mcdi_iface *mcdi = efx_mcdi(efx); unsigned int time, finish; unsigned int respseq, respcmd, error; - unsigned int pdu = FR_CZ_MC_TREG_SMEM + MCDI_PDU(efx); + unsigned int pdu = MCDI_PDU(efx); unsigned int rc, spins; efx_dword_t reg; @@ -149,8 +161,7 @@ static int efx_mcdi_poll(struct efx_nic *efx) time = get_seconds(); - rmb(); - efx_readd(efx, ®, pdu); + efx_mcdi_readd(efx, ®, pdu); /* All 1's indicates that shared memory is in reset (and is * not a valid header). Wait for it to come out reset before @@ -177,7 +188,7 @@ static int efx_mcdi_poll(struct efx_nic *efx) respseq, mcdi->seqno); rc = EIO; } else if (error) { - efx_readd(efx, ®, pdu + 4); + efx_mcdi_readd(efx, ®, pdu + 4); switch (EFX_DWORD_FIELD(reg, EFX_DWORD_0)) { #define TRANSLATE_ERROR(name) \ case MC_CMD_ERR_ ## name: \ @@ -211,21 +222,21 @@ out: /* Test and clear MC-rebooted flag for this port/function */ int efx_mcdi_poll_reboot(struct efx_nic *efx) { - unsigned int addr = FR_CZ_MC_TREG_SMEM + MCDI_REBOOT_FLAG(efx); + unsigned int addr = MCDI_REBOOT_FLAG(efx); efx_dword_t reg; uint32_t value; if (efx_nic_rev(efx) < EFX_REV_SIENA_A0) return false; - efx_readd(efx, ®, addr); + efx_mcdi_readd(efx, ®, addr); value = EFX_DWORD_FIELD(reg, EFX_DWORD_0); if (value == 0) return 0; EFX_ZERO_DWORD(reg); - efx_writed(efx, ®, addr); + efx_mcdi_writed(efx, ®, addr); if (value == MC_STATUS_DWORD_ASSERT) return -EINTR; diff --git a/drivers/net/sfc/nic.c b/drivers/net/sfc/nic.c index 10f1cb79c14..9b29a8d7c44 100644 --- a/drivers/net/sfc/nic.c +++ b/drivers/net/sfc/nic.c @@ -1937,6 +1937,13 @@ void efx_nic_get_regs(struct efx_nic *efx, void *buf) size = min_t(size_t, table->step, 16); + if (table->offset >= efx->type->mem_map_size) { + /* No longer mapped; return dummy data */ + memcpy(buf, "\xde\xc0\xad\xde", 4); + buf += table->rows * size; + continue; + } + for (i = 0; i < table->rows; i++) { switch (table->step) { case 4: /* 32-bit register or SRAM */ diff --git a/drivers/net/sfc/nic.h b/drivers/net/sfc/nic.h index a42db6e35be..d91701abd33 100644 --- a/drivers/net/sfc/nic.h +++ b/drivers/net/sfc/nic.h @@ -143,10 +143,12 @@ static inline struct falcon_board *falcon_board(struct efx_nic *efx) /** * struct siena_nic_data - Siena NIC state * @mcdi: Management-Controller-to-Driver Interface + * @mcdi_smem: MCDI shared memory mapping. The mapping is always uncacheable. * @wol_filter_id: Wake-on-LAN packet filter id */ struct siena_nic_data { struct efx_mcdi_iface mcdi; + void __iomem *mcdi_smem; int wol_filter_id; }; diff --git a/drivers/net/sfc/siena.c b/drivers/net/sfc/siena.c index e4dd8986b1f..837869b71db 100644 --- a/drivers/net/sfc/siena.c +++ b/drivers/net/sfc/siena.c @@ -220,12 +220,26 @@ static int siena_probe_nic(struct efx_nic *efx) efx_reado(efx, ®, FR_AZ_CS_DEBUG); efx->net_dev->dev_id = EFX_OWORD_FIELD(reg, FRF_CZ_CS_PORT_NUM) - 1; + /* Initialise MCDI */ + nic_data->mcdi_smem = ioremap_nocache(efx->membase_phys + + FR_CZ_MC_TREG_SMEM, + FR_CZ_MC_TREG_SMEM_STEP * + FR_CZ_MC_TREG_SMEM_ROWS); + if (!nic_data->mcdi_smem) { + netif_err(efx, probe, efx->net_dev, + "could not map MCDI at %llx+%x\n", + (unsigned long long)efx->membase_phys + + FR_CZ_MC_TREG_SMEM, + FR_CZ_MC_TREG_SMEM_STEP * FR_CZ_MC_TREG_SMEM_ROWS); + rc = -ENOMEM; + goto fail1; + } efx_mcdi_init(efx); /* Recover from a failed assertion before probing */ rc = efx_mcdi_handle_assertion(efx); if (rc) - goto fail1; + goto fail2; /* Let the BMC know that the driver is now in charge of link and * filter settings. We must do this before we reset the NIC */ @@ -280,6 +294,7 @@ fail4: fail3: efx_mcdi_drv_attach(efx, false, NULL); fail2: + iounmap(nic_data->mcdi_smem); fail1: kfree(efx->nic_data); return rc; @@ -359,6 +374,8 @@ static int siena_init_nic(struct efx_nic *efx) static void siena_remove_nic(struct efx_nic *efx) { + struct siena_nic_data *nic_data = efx->nic_data; + efx_nic_free_buffer(efx, &efx->irq_status); siena_reset_hw(efx, RESET_TYPE_ALL); @@ -368,7 +385,8 @@ static void siena_remove_nic(struct efx_nic *efx) efx_mcdi_drv_attach(efx, false, NULL); /* Tear down the private nic state */ - kfree(efx->nic_data); + iounmap(nic_data->mcdi_smem); + kfree(nic_data); efx->nic_data = NULL; } @@ -606,8 +624,7 @@ struct efx_nic_type siena_a0_nic_type = { .default_mac_ops = &efx_mcdi_mac_operations, .revision = EFX_REV_SIENA_A0, - .mem_map_size = (FR_CZ_MC_TREG_SMEM + - FR_CZ_MC_TREG_SMEM_STEP * FR_CZ_MC_TREG_SMEM_ROWS), + .mem_map_size = FR_CZ_MC_TREG_SMEM, /* MC_TREG_SMEM mapped separately */ .txd_ptr_tbl_base = FR_BZ_TX_DESC_PTR_TBL, .rxd_ptr_tbl_base = FR_BZ_RX_DESC_PTR_TBL, .buf_tbl_base = FR_BZ_BUF_FULL_TBL, diff --git a/drivers/net/slip.c b/drivers/net/slip.c index 86cbb9ea2f2..8ec1a9a0bb9 100644 --- a/drivers/net/slip.c +++ b/drivers/net/slip.c @@ -853,7 +853,9 @@ static int slip_open(struct tty_struct *tty) /* Done. We have linked the TTY line to a channel. */ rtnl_unlock(); tty->receive_room = 65536; /* We don't flow control */ - return sl->dev->base_addr; + + /* TTY layer expects 0 on success */ + return 0; err_free_bufs: sl_free_bufs(sl); diff --git a/drivers/net/sunhme.c b/drivers/net/sunhme.c index eb4f59fb01e..bff2f7999ff 100644 --- a/drivers/net/sunhme.c +++ b/drivers/net/sunhme.c @@ -3237,15 +3237,18 @@ static void happy_meal_pci_exit(void) #endif #ifdef CONFIG_SBUS +static const struct of_device_id hme_sbus_match[]; static int __devinit hme_sbus_probe(struct platform_device *op) { + const struct of_device_id *match; struct device_node *dp = op->dev.of_node; const char *model = of_get_property(dp, "model", NULL); int is_qfe; - if (!op->dev.of_match) + match = of_match_device(hme_sbus_match, &op->dev); + if (!match) return -EINVAL; - is_qfe = (op->dev.of_match->data != NULL); + is_qfe = (match->data != NULL); if (!is_qfe && model && !strcmp(model, "SUNW,sbus-qfe")) is_qfe = 1; diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c index a301479ecc6..c924ea2bce0 100644 --- a/drivers/net/usb/cdc_ether.c +++ b/drivers/net/usb/cdc_ether.c @@ -567,7 +567,7 @@ static const struct usb_device_id products [] = { { USB_DEVICE_AND_INTERFACE_INFO(0x1004, 0x61aa, USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), - .driver_info = 0, + .driver_info = (unsigned long)&wwan_info, }, /* diff --git a/drivers/net/usb/ipheth.c b/drivers/net/usb/ipheth.c index 7d42f9a2c06..81126ff85e0 100644 --- a/drivers/net/usb/ipheth.c +++ b/drivers/net/usb/ipheth.c @@ -65,6 +65,7 @@ #define IPHETH_USBINTF_PROTO 1 #define IPHETH_BUF_SIZE 1516 +#define IPHETH_IP_ALIGN 2 /* padding at front of URB */ #define IPHETH_TX_TIMEOUT (5 * HZ) #define IPHETH_INTFNUM 2 @@ -202,18 +203,21 @@ static void ipheth_rcvbulk_callback(struct urb *urb) return; } - len = urb->actual_length; - buf = urb->transfer_buffer; + if (urb->actual_length <= IPHETH_IP_ALIGN) { + dev->net->stats.rx_length_errors++; + return; + } + len = urb->actual_length - IPHETH_IP_ALIGN; + buf = urb->transfer_buffer + IPHETH_IP_ALIGN; - skb = dev_alloc_skb(NET_IP_ALIGN + len); + skb = dev_alloc_skb(len); if (!skb) { err("%s: dev_alloc_skb: -ENOMEM", __func__); dev->net->stats.rx_dropped++; return; } - skb_reserve(skb, NET_IP_ALIGN); - memcpy(skb_put(skb, len), buf + NET_IP_ALIGN, len - NET_IP_ALIGN); + memcpy(skb_put(skb, len), buf, len); skb->dev = dev->net; skb->protocol = eth_type_trans(skb, dev->net); diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c index 009bba3d753..9ab439d144e 100644 --- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -645,6 +645,7 @@ int usbnet_stop (struct net_device *net) struct driver_info *info = dev->driver_info; int retval; + clear_bit(EVENT_DEV_OPEN, &dev->flags); netif_stop_queue (net); netif_info(dev, ifdown, dev->net, @@ -1524,9 +1525,12 @@ int usbnet_resume (struct usb_interface *intf) smp_mb(); clear_bit(EVENT_DEV_ASLEEP, &dev->flags); spin_unlock_irq(&dev->txq.lock); - if (!(dev->txq.qlen >= TX_QLEN(dev))) - netif_start_queue(dev->net); - tasklet_schedule (&dev->bh); + + if (test_bit(EVENT_DEV_OPEN, &dev->flags)) { + if (!(dev->txq.qlen >= TX_QLEN(dev))) + netif_start_queue(dev->net); + tasklet_schedule (&dev->bh); + } } return 0; } diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c index 0d47c3a0530..c16ed961153 100644 --- a/drivers/net/vmxnet3/vmxnet3_drv.c +++ b/drivers/net/vmxnet3/vmxnet3_drv.c @@ -178,6 +178,7 @@ static void vmxnet3_process_events(struct vmxnet3_adapter *adapter) { int i; + unsigned long flags; u32 events = le32_to_cpu(adapter->shared->ecr); if (!events) return; @@ -190,10 +191,10 @@ vmxnet3_process_events(struct vmxnet3_adapter *adapter) /* Check if there is an error on xmit/recv queues */ if (events & (VMXNET3_ECR_TQERR | VMXNET3_ECR_RQERR)) { - spin_lock(&adapter->cmd_lock); + spin_lock_irqsave(&adapter->cmd_lock, flags); VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, VMXNET3_CMD_GET_QUEUE_STATUS); - spin_unlock(&adapter->cmd_lock); + spin_unlock_irqrestore(&adapter->cmd_lock, flags); for (i = 0; i < adapter->num_tx_queues; i++) if (adapter->tqd_start[i].status.stopped) @@ -2733,13 +2734,14 @@ static void vmxnet3_alloc_intr_resources(struct vmxnet3_adapter *adapter) { u32 cfg; + unsigned long flags; /* intr settings */ - spin_lock(&adapter->cmd_lock); + spin_lock_irqsave(&adapter->cmd_lock, flags); VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, VMXNET3_CMD_GET_CONF_INTR); cfg = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_CMD); - spin_unlock(&adapter->cmd_lock); + spin_unlock_irqrestore(&adapter->cmd_lock, flags); adapter->intr.type = cfg & 0x3; adapter->intr.mask_mode = (cfg >> 2) & 0x3; diff --git a/drivers/net/vmxnet3/vmxnet3_ethtool.c b/drivers/net/vmxnet3/vmxnet3_ethtool.c index 51f2ef142a5..976467253d2 100644 --- a/drivers/net/vmxnet3/vmxnet3_ethtool.c +++ b/drivers/net/vmxnet3/vmxnet3_ethtool.c @@ -311,6 +311,9 @@ vmxnet3_set_flags(struct net_device *netdev, u32 data) /* toggle the LRO feature*/ netdev->features ^= NETIF_F_LRO; + /* Update private LRO flag */ + adapter->lro = lro_requested; + /* update harware LRO capability accordingly */ if (lro_requested) adapter->shared->devRead.misc.uptFeatures |= diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 17d04ff8d67..1482fa65083 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -2141,6 +2141,8 @@ static void ath9k_set_coverage_class(struct ieee80211_hw *hw, u8 coverage_class) static void ath9k_flush(struct ieee80211_hw *hw, bool drop) { struct ath_softc *sc = hw->priv; + struct ath_hw *ah = sc->sc_ah; + struct ath_common *common = ath9k_hw_common(ah); int timeout = 200; /* ms */ int i, j; @@ -2149,6 +2151,12 @@ static void ath9k_flush(struct ieee80211_hw *hw, bool drop) cancel_delayed_work_sync(&sc->tx_complete_work); + if (sc->sc_flags & SC_OP_INVALID) { + ath_dbg(common, ATH_DBG_ANY, "Device not present\n"); + mutex_unlock(&sc->mutex); + return; + } + if (drop) timeout = 1; diff --git a/drivers/net/wireless/iwlegacy/iwl-core.c b/drivers/net/wireless/iwlegacy/iwl-core.c index c1511b14b23..42db0fc8b92 100644 --- a/drivers/net/wireless/iwlegacy/iwl-core.c +++ b/drivers/net/wireless/iwlegacy/iwl-core.c @@ -2155,6 +2155,13 @@ int iwl_legacy_mac_config(struct ieee80211_hw *hw, u32 changed) goto set_ch_out; } + if (priv->iw_mode == NL80211_IFTYPE_ADHOC && + !iwl_legacy_is_channel_ibss(ch_info)) { + IWL_DEBUG_MAC80211(priv, "leave - not IBSS channel\n"); + ret = -EINVAL; + goto set_ch_out; + } + spin_lock_irqsave(&priv->lock, flags); for_each_context(priv, ctx) { diff --git a/drivers/net/wireless/iwlegacy/iwl-dev.h b/drivers/net/wireless/iwlegacy/iwl-dev.h index 9ee849d669f..f43ac1eb901 100644 --- a/drivers/net/wireless/iwlegacy/iwl-dev.h +++ b/drivers/net/wireless/iwlegacy/iwl-dev.h @@ -1411,6 +1411,12 @@ iwl_legacy_is_channel_passive(const struct iwl_channel_info *ch) return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0; } +static inline int +iwl_legacy_is_channel_ibss(const struct iwl_channel_info *ch) +{ + return (ch->flags & EEPROM_CHANNEL_IBSS) ? 1 : 0; +} + static inline void __iwl_legacy_free_pages(struct iwl_priv *priv, struct page *page) { diff --git a/drivers/net/wireless/libertas/cmd.c b/drivers/net/wireless/libertas/cmd.c index 7e8a658b767..f3ac62431a3 100644 --- a/drivers/net/wireless/libertas/cmd.c +++ b/drivers/net/wireless/libertas/cmd.c @@ -1339,8 +1339,8 @@ int lbs_execute_next_command(struct lbs_private *priv) cpu_to_le16(PS_MODE_ACTION_EXIT_PS)) { lbs_deb_host( "EXEC_NEXT_CMD: ignore ENTER_PS cmd\n"); - list_del(&cmdnode->list); spin_lock_irqsave(&priv->driver_lock, flags); + list_del(&cmdnode->list); lbs_complete_command(priv, cmdnode, 0); spin_unlock_irqrestore(&priv->driver_lock, flags); @@ -1352,8 +1352,8 @@ int lbs_execute_next_command(struct lbs_private *priv) (priv->psstate == PS_STATE_PRE_SLEEP)) { lbs_deb_host( "EXEC_NEXT_CMD: ignore EXIT_PS cmd in sleep\n"); - list_del(&cmdnode->list); spin_lock_irqsave(&priv->driver_lock, flags); + list_del(&cmdnode->list); lbs_complete_command(priv, cmdnode, 0); spin_unlock_irqrestore(&priv->driver_lock, flags); priv->needtowakeup = 1; @@ -1366,7 +1366,9 @@ int lbs_execute_next_command(struct lbs_private *priv) "EXEC_NEXT_CMD: sending EXIT_PS\n"); } } + spin_lock_irqsave(&priv->driver_lock, flags); list_del(&cmdnode->list); + spin_unlock_irqrestore(&priv->driver_lock, flags); lbs_deb_host("EXEC_NEXT_CMD: sending command 0x%04x\n", le16_to_cpu(cmd->command)); lbs_submit_command(priv, cmdnode); diff --git a/drivers/net/zorro8390.c b/drivers/net/zorro8390.c index b78a38d9172..8c7c522a056 100644 --- a/drivers/net/zorro8390.c +++ b/drivers/net/zorro8390.c @@ -126,7 +126,7 @@ static int __devinit zorro8390_init_one(struct zorro_dev *z, board = z->resource.start; ioaddr = board+cards[i].offset; - dev = alloc_ei_netdev(); + dev = ____alloc_ei_netdev(0); if (!dev) return -ENOMEM; if (!request_mem_region(ioaddr, NE_IO_EXTENT*2, DRV_NAME)) { @@ -146,15 +146,15 @@ static int __devinit zorro8390_init_one(struct zorro_dev *z, static const struct net_device_ops zorro8390_netdev_ops = { .ndo_open = zorro8390_open, .ndo_stop = zorro8390_close, - .ndo_start_xmit = ei_start_xmit, - .ndo_tx_timeout = ei_tx_timeout, - .ndo_get_stats = ei_get_stats, - .ndo_set_multicast_list = ei_set_multicast_list, + .ndo_start_xmit = __ei_start_xmit, + .ndo_tx_timeout = __ei_tx_timeout, + .ndo_get_stats = __ei_get_stats, + .ndo_set_multicast_list = __ei_set_multicast_list, .ndo_validate_addr = eth_validate_addr, .ndo_set_mac_address = eth_mac_addr, .ndo_change_mtu = eth_change_mtu, #ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = ei_poll, + .ndo_poll_controller = __ei_poll, #endif }; diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index d552d2c7784..6af6b628175 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -39,6 +39,7 @@ #include <linux/syscore_ops.h> #include <linux/tboot.h> #include <linux/dmi.h> +#include <linux/pci-ats.h> #include <asm/cacheflush.h> #include <asm/iommu.h> #include "pci.h" diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c index 553d8ee55c1..42fae477651 100644 --- a/drivers/pci/iov.c +++ b/drivers/pci/iov.c @@ -13,6 +13,7 @@ #include <linux/mutex.h> #include <linux/string.h> #include <linux/delay.h> +#include <linux/pci-ats.h> #include "pci.h" #define VIRTFN_ID_LEN 16 diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index a6ec200fe5e..4020025f854 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -250,15 +250,6 @@ struct pci_sriov { u8 __iomem *mstate; /* VF Migration State Array */ }; -/* Address Translation Service */ -struct pci_ats { - int pos; /* capability position */ - int stu; /* Smallest Translation Unit */ - int qdep; /* Invalidate Queue Depth */ - int ref_cnt; /* Physical Function reference count */ - unsigned int is_enabled:1; /* Enable bit is set */ -}; - #ifdef CONFIG_PCI_IOV extern int pci_iov_init(struct pci_dev *dev); extern void pci_iov_release(struct pci_dev *dev); @@ -269,19 +260,6 @@ extern resource_size_t pci_sriov_resource_alignment(struct pci_dev *dev, extern void pci_restore_iov_state(struct pci_dev *dev); extern int pci_iov_bus_range(struct pci_bus *bus); -extern int pci_enable_ats(struct pci_dev *dev, int ps); -extern void pci_disable_ats(struct pci_dev *dev); -extern int pci_ats_queue_depth(struct pci_dev *dev); -/** - * pci_ats_enabled - query the ATS status - * @dev: the PCI device - * - * Returns 1 if ATS capability is enabled, or 0 if not. - */ -static inline int pci_ats_enabled(struct pci_dev *dev) -{ - return dev->ats && dev->ats->is_enabled; -} #else static inline int pci_iov_init(struct pci_dev *dev) { @@ -304,21 +282,6 @@ static inline int pci_iov_bus_range(struct pci_bus *bus) return 0; } -static inline int pci_enable_ats(struct pci_dev *dev, int ps) -{ - return -ENODEV; -} -static inline void pci_disable_ats(struct pci_dev *dev) -{ -} -static inline int pci_ats_queue_depth(struct pci_dev *dev) -{ - return -ENODEV; -} -static inline int pci_ats_enabled(struct pci_dev *dev) -{ - return 0; -} #endif /* CONFIG_PCI_IOV */ static inline resource_size_t pci_resource_alignment(struct pci_dev *dev, diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c index ebf51ad1b71..a806cb321d2 100644 --- a/drivers/pci/setup-bus.c +++ b/drivers/pci/setup-bus.c @@ -579,7 +579,7 @@ static void pbus_size_io(struct pci_bus *bus, resource_size_t min_size, } size0 = calculate_iosize(size, min_size, size1, resource_size(b_res), 4096); - size1 = !add_size? size0: + size1 = (!add_head || (add_head && !add_size)) ? size0 : calculate_iosize(size, min_size+add_size, size1, resource_size(b_res), 4096); if (!size0 && !size1) { @@ -677,7 +677,7 @@ static int pbus_size_mem(struct pci_bus *bus, unsigned long mask, align += aligns[order]; } size0 = calculate_memsize(size, min_size, 0, resource_size(b_res), min_align); - size1 = !add_size ? size : + size1 = (!add_head || (add_head && !add_size)) ? size0 : calculate_memsize(size, min_size+add_size, 0, resource_size(b_res), min_align); if (!size0 && !size1) { diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index 5f2dd386152..2c1abf63957 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -585,8 +585,9 @@ static bool eeepc_wlan_rfkill_blocked(struct eeepc_laptop *eeepc) return true; } -static void eeepc_rfkill_hotplug(struct eeepc_laptop *eeepc) +static void eeepc_rfkill_hotplug(struct eeepc_laptop *eeepc, acpi_handle handle) { + struct pci_dev *port; struct pci_dev *dev; struct pci_bus *bus; bool blocked = eeepc_wlan_rfkill_blocked(eeepc); @@ -599,9 +600,16 @@ static void eeepc_rfkill_hotplug(struct eeepc_laptop *eeepc) mutex_lock(&eeepc->hotplug_lock); if (eeepc->hotplug_slot) { - bus = pci_find_bus(0, 1); + port = acpi_get_pci_dev(handle); + if (!port) { + pr_warning("Unable to find port\n"); + goto out_unlock; + } + + bus = port->subordinate; + if (!bus) { - pr_warning("Unable to find PCI bus 1?\n"); + pr_warning("Unable to find PCI bus?\n"); goto out_unlock; } @@ -609,6 +617,7 @@ static void eeepc_rfkill_hotplug(struct eeepc_laptop *eeepc) pr_err("Unable to read PCI config space?\n"); goto out_unlock; } + absent = (l == 0xffffffff); if (blocked != absent) { @@ -647,6 +656,17 @@ out_unlock: mutex_unlock(&eeepc->hotplug_lock); } +static void eeepc_rfkill_hotplug_update(struct eeepc_laptop *eeepc, char *node) +{ + acpi_status status = AE_OK; + acpi_handle handle; + + status = acpi_get_handle(NULL, node, &handle); + + if (ACPI_SUCCESS(status)) + eeepc_rfkill_hotplug(eeepc, handle); +} + static void eeepc_rfkill_notify(acpi_handle handle, u32 event, void *data) { struct eeepc_laptop *eeepc = data; @@ -654,7 +674,7 @@ static void eeepc_rfkill_notify(acpi_handle handle, u32 event, void *data) if (event != ACPI_NOTIFY_BUS_CHECK) return; - eeepc_rfkill_hotplug(eeepc); + eeepc_rfkill_hotplug(eeepc, handle); } static int eeepc_register_rfkill_notifier(struct eeepc_laptop *eeepc, @@ -672,6 +692,11 @@ static int eeepc_register_rfkill_notifier(struct eeepc_laptop *eeepc, eeepc); if (ACPI_FAILURE(status)) pr_warning("Failed to register notify on %s\n", node); + /* + * Refresh pci hotplug in case the rfkill state was + * changed during setup. + */ + eeepc_rfkill_hotplug(eeepc, handle); } else return -ENODEV; @@ -693,6 +718,12 @@ static void eeepc_unregister_rfkill_notifier(struct eeepc_laptop *eeepc, if (ACPI_FAILURE(status)) pr_err("Error removing rfkill notify handler %s\n", node); + /* + * Refresh pci hotplug in case the rfkill + * state was changed after + * eeepc_unregister_rfkill_notifier() + */ + eeepc_rfkill_hotplug(eeepc, handle); } } @@ -816,11 +847,7 @@ static void eeepc_rfkill_exit(struct eeepc_laptop *eeepc) rfkill_destroy(eeepc->wlan_rfkill); eeepc->wlan_rfkill = NULL; } - /* - * Refresh pci hotplug in case the rfkill state was changed after - * eeepc_unregister_rfkill_notifier() - */ - eeepc_rfkill_hotplug(eeepc); + if (eeepc->hotplug_slot) pci_hp_deregister(eeepc->hotplug_slot); @@ -889,11 +916,6 @@ static int eeepc_rfkill_init(struct eeepc_laptop *eeepc) eeepc_register_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P5"); eeepc_register_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P6"); eeepc_register_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P7"); - /* - * Refresh pci hotplug in case the rfkill state was changed during - * setup. - */ - eeepc_rfkill_hotplug(eeepc); exit: if (result && result != -ENODEV) @@ -928,8 +950,11 @@ static int eeepc_hotk_restore(struct device *device) struct eeepc_laptop *eeepc = dev_get_drvdata(device); /* Refresh both wlan rfkill state and pci hotplug */ - if (eeepc->wlan_rfkill) - eeepc_rfkill_hotplug(eeepc); + if (eeepc->wlan_rfkill) { + eeepc_rfkill_hotplug_update(eeepc, "\\_SB.PCI0.P0P5"); + eeepc_rfkill_hotplug_update(eeepc, "\\_SB.PCI0.P0P6"); + eeepc_rfkill_hotplug_update(eeepc, "\\_SB.PCI0.P0P7"); + } if (eeepc->bluetooth_rfkill) rfkill_set_sw_state(eeepc->bluetooth_rfkill, diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c index 8f709aec4da..6fe8cd6e23b 100644 --- a/drivers/platform/x86/sony-laptop.c +++ b/drivers/platform/x86/sony-laptop.c @@ -934,6 +934,14 @@ static ssize_t sony_nc_sysfs_store(struct device *dev, /* * Backlight device */ +struct sony_backlight_props { + struct backlight_device *dev; + int handle; + u8 offset; + u8 maxlvl; +}; +struct sony_backlight_props sony_bl_props; + static int sony_backlight_update_status(struct backlight_device *bd) { return acpi_callsetfunc(sony_nc_acpi_handle, "SBRT", @@ -954,21 +962,26 @@ static int sony_nc_get_brightness_ng(struct backlight_device *bd) { int result; int *handle = (int *)bl_get_data(bd); + struct sony_backlight_props *sdev = + (struct sony_backlight_props *)bl_get_data(bd); - sony_call_snc_handle(*handle, 0x0200, &result); + sony_call_snc_handle(sdev->handle, 0x0200, &result); - return result & 0xff; + return (result & 0xff) - sdev->offset; } static int sony_nc_update_status_ng(struct backlight_device *bd) { int value, result; int *handle = (int *)bl_get_data(bd); + struct sony_backlight_props *sdev = + (struct sony_backlight_props *)bl_get_data(bd); - value = bd->props.brightness; - sony_call_snc_handle(*handle, 0x0100 | (value << 16), &result); + value = bd->props.brightness + sdev->offset; + if (sony_call_snc_handle(sdev->handle, 0x0100 | (value << 16), &result)) + return -EIO; - return sony_nc_get_brightness_ng(bd); + return value; } static const struct backlight_ops sony_backlight_ops = { @@ -981,8 +994,6 @@ static const struct backlight_ops sony_backlight_ng_ops = { .update_status = sony_nc_update_status_ng, .get_brightness = sony_nc_get_brightness_ng, }; -static int backlight_ng_handle; -static struct backlight_device *sony_backlight_device; /* * New SNC-only Vaios event mapping to driver known keys @@ -1549,6 +1560,75 @@ static void sony_nc_kbd_backlight_resume(void) &ignore); } +static void sony_nc_backlight_ng_read_limits(int handle, + struct sony_backlight_props *props) +{ + int offset; + acpi_status status; + u8 brlvl, i; + u8 min = 0xff, max = 0x00; + struct acpi_object_list params; + union acpi_object in_obj; + union acpi_object *lvl_enum; + struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; + + props->handle = handle; + props->offset = 0; + props->maxlvl = 0xff; + + offset = sony_find_snc_handle(handle); + if (offset < 0) + return; + + /* try to read the boundaries from ACPI tables, if we fail the above + * defaults should be reasonable + */ + params.count = 1; + params.pointer = &in_obj; + in_obj.type = ACPI_TYPE_INTEGER; + in_obj.integer.value = offset; + status = acpi_evaluate_object(sony_nc_acpi_handle, "SN06", ¶ms, + &buffer); + if (ACPI_FAILURE(status)) + return; + + lvl_enum = (union acpi_object *) buffer.pointer; + if (!lvl_enum) { + pr_err("No SN06 return object."); + return; + } + if (lvl_enum->type != ACPI_TYPE_BUFFER) { + pr_err("Invalid SN06 return object 0x%.2x\n", + lvl_enum->type); + goto out_invalid; + } + + /* the buffer lists brightness levels available, brightness levels are + * from 0 to 8 in the array, other values are used by ALS control. + */ + for (i = 0; i < 9 && i < lvl_enum->buffer.length; i++) { + + brlvl = *(lvl_enum->buffer.pointer + i); + dprintk("Brightness level: %d\n", brlvl); + + if (!brlvl) + break; + + if (brlvl > max) + max = brlvl; + if (brlvl < min) + min = brlvl; + } + props->offset = min; + props->maxlvl = max; + dprintk("Brightness levels: min=%d max=%d\n", props->offset, + props->maxlvl); + +out_invalid: + kfree(buffer.pointer); + return; +} + static void sony_nc_backlight_setup(void) { acpi_handle unused; @@ -1557,14 +1637,14 @@ static void sony_nc_backlight_setup(void) struct backlight_properties props; if (sony_find_snc_handle(0x12f) != -1) { - backlight_ng_handle = 0x12f; ops = &sony_backlight_ng_ops; - max_brightness = 0xff; + sony_nc_backlight_ng_read_limits(0x12f, &sony_bl_props); + max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset; } else if (sony_find_snc_handle(0x137) != -1) { - backlight_ng_handle = 0x137; ops = &sony_backlight_ng_ops; - max_brightness = 0xff; + sony_nc_backlight_ng_read_limits(0x137, &sony_bl_props); + max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset; } else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT", &unused))) { @@ -1577,22 +1657,22 @@ static void sony_nc_backlight_setup(void) memset(&props, 0, sizeof(struct backlight_properties)); props.type = BACKLIGHT_PLATFORM; props.max_brightness = max_brightness; - sony_backlight_device = backlight_device_register("sony", NULL, - &backlight_ng_handle, - ops, &props); + sony_bl_props.dev = backlight_device_register("sony", NULL, + &sony_bl_props, + ops, &props); - if (IS_ERR(sony_backlight_device)) { - pr_warning(DRV_PFX "unable to register backlight device\n"); - sony_backlight_device = NULL; + if (IS_ERR(sony_bl_props.dev)) { + pr_warn(DRV_PFX "unable to register backlight device\n"); + sony_bl_props.dev = NULL; } else - sony_backlight_device->props.brightness = - ops->get_brightness(sony_backlight_device); + sony_bl_props.dev->props.brightness = + ops->get_brightness(sony_bl_props.dev); } static void sony_nc_backlight_cleanup(void) { - if (sony_backlight_device) - backlight_device_unregister(sony_backlight_device); + if (sony_bl_props.dev) + backlight_device_unregister(sony_bl_props.dev); } static int sony_nc_add(struct acpi_device *device) @@ -2590,7 +2670,7 @@ static long sonypi_misc_ioctl(struct file *fp, unsigned int cmd, mutex_lock(&spic_dev.lock); switch (cmd) { case SONYPI_IOCGBRT: - if (sony_backlight_device == NULL) { + if (sony_bl_props.dev == NULL) { ret = -EIO; break; } @@ -2603,7 +2683,7 @@ static long sonypi_misc_ioctl(struct file *fp, unsigned int cmd, ret = -EFAULT; break; case SONYPI_IOCSBRT: - if (sony_backlight_device == NULL) { + if (sony_bl_props.dev == NULL) { ret = -EIO; break; } @@ -2617,8 +2697,8 @@ static long sonypi_misc_ioctl(struct file *fp, unsigned int cmd, break; } /* sync the backlight device status */ - sony_backlight_device->props.brightness = - sony_backlight_get_brightness(sony_backlight_device); + sony_bl_props.dev->props.brightness = + sony_backlight_get_brightness(sony_bl_props.dev); break; case SONYPI_IOCGBAT1CAP: if (ec_read16(SONYPI_BAT1_FULL, &val16)) { diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index efb3b6b9bcd..562fcf0dd2b 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -128,7 +128,8 @@ enum { }; /* ACPI HIDs */ -#define TPACPI_ACPI_HKEY_HID "IBM0068" +#define TPACPI_ACPI_IBM_HKEY_HID "IBM0068" +#define TPACPI_ACPI_LENOVO_HKEY_HID "LEN0068" #define TPACPI_ACPI_EC_HID "PNP0C09" /* Input IDs */ @@ -3879,7 +3880,8 @@ errexit: } static const struct acpi_device_id ibm_htk_device_ids[] = { - {TPACPI_ACPI_HKEY_HID, 0}, + {TPACPI_ACPI_IBM_HKEY_HID, 0}, + {TPACPI_ACPI_LENOVO_HKEY_HID, 0}, {"", 0}, }; diff --git a/drivers/rapidio/switches/idt_gen2.c b/drivers/rapidio/switches/idt_gen2.c index ac2701b22e7..043ee3136e4 100644 --- a/drivers/rapidio/switches/idt_gen2.c +++ b/drivers/rapidio/switches/idt_gen2.c @@ -95,6 +95,9 @@ idtg2_route_add_entry(struct rio_mport *mport, u16 destid, u8 hopcount, else table++; + if (route_port == RIO_INVALID_ROUTE) + route_port = IDT_DEFAULT_ROUTE; + rio_mport_write_config_32(mport, destid, hopcount, LOCAL_RTE_CONF_DESTID_SEL, table); @@ -411,6 +414,12 @@ static int idtg2_switch_init(struct rio_dev *rdev, int do_enum) rdev->rswitch->em_handle = idtg2_em_handler; rdev->rswitch->sw_sysfs = idtg2_sysfs; + if (do_enum) { + /* Ensure that default routing is disabled on startup */ + rio_write_config_32(rdev, + RIO_STD_RTE_DEFAULT_PORT, IDT_NO_ROUTE); + } + return 0; } diff --git a/drivers/rapidio/switches/idtcps.c b/drivers/rapidio/switches/idtcps.c index 3a971077e7b..d06ee2d44b4 100644 --- a/drivers/rapidio/switches/idtcps.c +++ b/drivers/rapidio/switches/idtcps.c @@ -26,6 +26,9 @@ idtcps_route_add_entry(struct rio_mport *mport, u16 destid, u8 hopcount, { u32 result; + if (route_port == RIO_INVALID_ROUTE) + route_port = CPS_DEFAULT_ROUTE; + if (table == RIO_GLOBAL_TABLE) { rio_mport_write_config_32(mport, destid, hopcount, RIO_STD_RTE_CONF_DESTID_SEL_CSR, route_destid); @@ -130,6 +133,9 @@ static int idtcps_switch_init(struct rio_dev *rdev, int do_enum) /* set TVAL = ~50us */ rio_write_config_32(rdev, rdev->phys_efptr + RIO_PORT_LINKTO_CTL_CSR, 0x8e << 8); + /* Ensure that default routing is disabled on startup */ + rio_write_config_32(rdev, + RIO_STD_RTE_DEFAULT_PORT, CPS_NO_ROUTE); } return 0; diff --git a/drivers/rapidio/switches/tsi57x.c b/drivers/rapidio/switches/tsi57x.c index 1a62934bfeb..db8b8028988 100644 --- a/drivers/rapidio/switches/tsi57x.c +++ b/drivers/rapidio/switches/tsi57x.c @@ -303,6 +303,12 @@ static int tsi57x_switch_init(struct rio_dev *rdev, int do_enum) rdev->rswitch->em_init = tsi57x_em_init; rdev->rswitch->em_handle = tsi57x_em_handler; + if (do_enum) { + /* Ensure that default routing is disabled on startup */ + rio_write_config_32(rdev, RIO_STD_RTE_DEFAULT_PORT, + RIO_INVALID_ROUTE); + } + return 0; } diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig index e1878877399..42891726ea7 100644 --- a/drivers/rtc/Kconfig +++ b/drivers/rtc/Kconfig @@ -3,10 +3,10 @@ # config RTC_LIB - tristate + bool menuconfig RTC_CLASS - tristate "Real Time Clock" + bool "Real Time Clock" default n depends on !S390 select RTC_LIB @@ -15,9 +15,6 @@ menuconfig RTC_CLASS be allowed to plug one or more RTCs to your system. You will probably want to enable one or more of the interfaces below. - This driver can also be built as a module. If so, the module - will be called rtc-core. - if RTC_CLASS config RTC_HCTOSYS diff --git a/drivers/rtc/class.c b/drivers/rtc/class.c index 39013867cbd..4194e59e14c 100644 --- a/drivers/rtc/class.c +++ b/drivers/rtc/class.c @@ -41,26 +41,21 @@ static void rtc_device_release(struct device *dev) * system's wall clock; restore it on resume(). */ -static struct timespec delta; static time_t oldtime; +static struct timespec oldts; static int rtc_suspend(struct device *dev, pm_message_t mesg) { struct rtc_device *rtc = to_rtc_device(dev); struct rtc_time tm; - struct timespec ts = current_kernel_time(); if (strcmp(dev_name(&rtc->dev), CONFIG_RTC_HCTOSYS_DEVICE) != 0) return 0; rtc_read_time(rtc, &tm); + ktime_get_ts(&oldts); rtc_tm_to_time(&tm, &oldtime); - /* RTC precision is 1 second; adjust delta for avg 1/2 sec err */ - set_normalized_timespec(&delta, - ts.tv_sec - oldtime, - ts.tv_nsec - (NSEC_PER_SEC >> 1)); - return 0; } @@ -70,10 +65,12 @@ static int rtc_resume(struct device *dev) struct rtc_time tm; time_t newtime; struct timespec time; + struct timespec newts; if (strcmp(dev_name(&rtc->dev), CONFIG_RTC_HCTOSYS_DEVICE) != 0) return 0; + ktime_get_ts(&newts); rtc_read_time(rtc, &tm); if (rtc_valid_tm(&tm) != 0) { pr_debug("%s: bogus resume time\n", dev_name(&rtc->dev)); @@ -85,15 +82,13 @@ static int rtc_resume(struct device *dev) pr_debug("%s: time travel!\n", dev_name(&rtc->dev)); return 0; } + /* calculate the RTC time delta */ + set_normalized_timespec(&time, newtime - oldtime, 0); - /* restore wall clock using delta against this RTC; - * adjust again for avg 1/2 second RTC sampling error - */ - set_normalized_timespec(&time, - newtime + delta.tv_sec, - (NSEC_PER_SEC >> 1) + delta.tv_nsec); - do_settimeofday(&time); + /* subtract kernel time between rtc_suspend to rtc_resume */ + time = timespec_sub(time, timespec_sub(newts, oldts)); + timekeeping_inject_sleeptime(&time); return 0; } diff --git a/drivers/rtc/rtc-davinci.c b/drivers/rtc/rtc-davinci.c index 8d46838dff8..755e1fe914a 100644 --- a/drivers/rtc/rtc-davinci.c +++ b/drivers/rtc/rtc-davinci.c @@ -524,6 +524,8 @@ static int __init davinci_rtc_probe(struct platform_device *pdev) goto fail2; } + platform_set_drvdata(pdev, davinci_rtc); + davinci_rtc->rtc = rtc_device_register(pdev->name, &pdev->dev, &davinci_rtc_ops, THIS_MODULE); if (IS_ERR(davinci_rtc->rtc)) { @@ -553,8 +555,6 @@ static int __init davinci_rtc_probe(struct platform_device *pdev) rtcss_write(davinci_rtc, PRTCSS_RTC_CCTRL_CAEN, PRTCSS_RTC_CCTRL); - platform_set_drvdata(pdev, davinci_rtc); - device_init_wakeup(&pdev->dev, 0); return 0; @@ -562,6 +562,7 @@ static int __init davinci_rtc_probe(struct platform_device *pdev) fail4: rtc_device_unregister(davinci_rtc->rtc); fail3: + platform_set_drvdata(pdev, NULL); iounmap(davinci_rtc->base); fail2: release_mem_region(davinci_rtc->pbase, davinci_rtc->base_size); diff --git a/drivers/rtc/rtc-ds1286.c b/drivers/rtc/rtc-ds1286.c index 60ce6960082..47e681df31e 100644 --- a/drivers/rtc/rtc-ds1286.c +++ b/drivers/rtc/rtc-ds1286.c @@ -355,6 +355,7 @@ static int __devinit ds1286_probe(struct platform_device *pdev) goto out; } spin_lock_init(&priv->lock); + platform_set_drvdata(pdev, priv); rtc = rtc_device_register("ds1286", &pdev->dev, &ds1286_ops, THIS_MODULE); if (IS_ERR(rtc)) { @@ -362,7 +363,6 @@ static int __devinit ds1286_probe(struct platform_device *pdev) goto out; } priv->rtc = rtc; - platform_set_drvdata(pdev, priv); return 0; out: diff --git a/drivers/rtc/rtc-ep93xx.c b/drivers/rtc/rtc-ep93xx.c index 11ae64dcbf3..335551d333b 100644 --- a/drivers/rtc/rtc-ep93xx.c +++ b/drivers/rtc/rtc-ep93xx.c @@ -151,6 +151,7 @@ static int __init ep93xx_rtc_probe(struct platform_device *pdev) return -ENXIO; pdev->dev.platform_data = ep93xx_rtc; + platform_set_drvdata(pdev, rtc); rtc = rtc_device_register(pdev->name, &pdev->dev, &ep93xx_rtc_ops, THIS_MODULE); @@ -159,8 +160,6 @@ static int __init ep93xx_rtc_probe(struct platform_device *pdev) goto exit; } - platform_set_drvdata(pdev, rtc); - err = sysfs_create_group(&pdev->dev.kobj, &ep93xx_rtc_sysfs_files); if (err) goto fail; @@ -168,9 +167,9 @@ static int __init ep93xx_rtc_probe(struct platform_device *pdev) return 0; fail: - platform_set_drvdata(pdev, NULL); rtc_device_unregister(rtc); exit: + platform_set_drvdata(pdev, NULL); pdev->dev.platform_data = NULL; return err; } diff --git a/drivers/rtc/rtc-m41t80.c b/drivers/rtc/rtc-m41t80.c index 69fe664a222..eda128fc1d3 100644 --- a/drivers/rtc/rtc-m41t80.c +++ b/drivers/rtc/rtc-m41t80.c @@ -783,6 +783,9 @@ static int m41t80_probe(struct i2c_client *client, goto exit; } + clientdata->features = id->driver_data; + i2c_set_clientdata(client, clientdata); + rtc = rtc_device_register(client->name, &client->dev, &m41t80_rtc_ops, THIS_MODULE); if (IS_ERR(rtc)) { @@ -792,8 +795,6 @@ static int m41t80_probe(struct i2c_client *client, } clientdata->rtc = rtc; - clientdata->features = id->driver_data; - i2c_set_clientdata(client, clientdata); /* Make sure HT (Halt Update) bit is cleared */ rc = i2c_smbus_read_byte_data(client, M41T80_REG_ALARM_HOUR); diff --git a/drivers/rtc/rtc-max8925.c b/drivers/rtc/rtc-max8925.c index 20494b5edc3..3bc046f427e 100644 --- a/drivers/rtc/rtc-max8925.c +++ b/drivers/rtc/rtc-max8925.c @@ -258,6 +258,8 @@ static int __devinit max8925_rtc_probe(struct platform_device *pdev) } dev_set_drvdata(&pdev->dev, info); + /* XXX - isn't this redundant? */ + platform_set_drvdata(pdev, info); info->rtc_dev = rtc_device_register("max8925-rtc", &pdev->dev, &max8925_rtc_ops, THIS_MODULE); @@ -267,10 +269,9 @@ static int __devinit max8925_rtc_probe(struct platform_device *pdev) goto out_rtc; } - platform_set_drvdata(pdev, info); - return 0; out_rtc: + platform_set_drvdata(pdev, NULL); free_irq(chip->irq_base + MAX8925_IRQ_RTC_ALARM0, info); out_irq: kfree(info); diff --git a/drivers/rtc/rtc-max8998.c b/drivers/rtc/rtc-max8998.c index 3f7bc6b9fef..2e48aa60427 100644 --- a/drivers/rtc/rtc-max8998.c +++ b/drivers/rtc/rtc-max8998.c @@ -265,6 +265,8 @@ static int __devinit max8998_rtc_probe(struct platform_device *pdev) info->rtc = max8998->rtc; info->irq = max8998->irq_base + MAX8998_IRQ_ALARM0; + platform_set_drvdata(pdev, info); + info->rtc_dev = rtc_device_register("max8998-rtc", &pdev->dev, &max8998_rtc_ops, THIS_MODULE); @@ -274,8 +276,6 @@ static int __devinit max8998_rtc_probe(struct platform_device *pdev) goto out_rtc; } - platform_set_drvdata(pdev, info); - ret = request_threaded_irq(info->irq, NULL, max8998_rtc_alarm_irq, 0, "rtc-alarm0", info); @@ -293,6 +293,7 @@ static int __devinit max8998_rtc_probe(struct platform_device *pdev) return 0; out_rtc: + platform_set_drvdata(pdev, NULL); kfree(info); return ret; } diff --git a/drivers/rtc/rtc-mc13xxx.c b/drivers/rtc/rtc-mc13xxx.c index c5ac03793e7..a1a278bc340 100644 --- a/drivers/rtc/rtc-mc13xxx.c +++ b/drivers/rtc/rtc-mc13xxx.c @@ -349,11 +349,15 @@ static int __devinit mc13xxx_rtc_probe(struct platform_device *pdev) if (ret) goto err_alarm_irq_request; + mc13xxx_unlock(mc13xxx); + priv->rtc = rtc_device_register(pdev->name, &pdev->dev, &mc13xxx_rtc_ops, THIS_MODULE); if (IS_ERR(priv->rtc)) { ret = PTR_ERR(priv->rtc); + mc13xxx_lock(mc13xxx); + mc13xxx_irq_free(mc13xxx, MC13XXX_IRQ_TODA, priv); err_alarm_irq_request: @@ -365,12 +369,12 @@ err_reset_irq_status: mc13xxx_irq_free(mc13xxx, MC13XXX_IRQ_RTCRST, priv); err_reset_irq_request: + mc13xxx_unlock(mc13xxx); + platform_set_drvdata(pdev, NULL); kfree(priv); } - mc13xxx_unlock(mc13xxx); - return ret; } diff --git a/drivers/rtc/rtc-msm6242.c b/drivers/rtc/rtc-msm6242.c index 67820626e18..fcb113c1112 100644 --- a/drivers/rtc/rtc-msm6242.c +++ b/drivers/rtc/rtc-msm6242.c @@ -214,6 +214,7 @@ static int __init msm6242_rtc_probe(struct platform_device *dev) error = -ENOMEM; goto out_free_priv; } + platform_set_drvdata(dev, priv); rtc = rtc_device_register("rtc-msm6242", &dev->dev, &msm6242_rtc_ops, THIS_MODULE); @@ -223,10 +224,10 @@ static int __init msm6242_rtc_probe(struct platform_device *dev) } priv->rtc = rtc; - platform_set_drvdata(dev, priv); return 0; out_unmap: + platform_set_drvdata(dev, NULL); iounmap(priv->regs); out_free_priv: kfree(priv); diff --git a/drivers/rtc/rtc-mxc.c b/drivers/rtc/rtc-mxc.c index 826ab64a8fa..d814417bee8 100644 --- a/drivers/rtc/rtc-mxc.c +++ b/drivers/rtc/rtc-mxc.c @@ -418,14 +418,6 @@ static int __init mxc_rtc_probe(struct platform_device *pdev) goto exit_put_clk; } - rtc = rtc_device_register(pdev->name, &pdev->dev, &mxc_rtc_ops, - THIS_MODULE); - if (IS_ERR(rtc)) { - ret = PTR_ERR(rtc); - goto exit_put_clk; - } - - pdata->rtc = rtc; platform_set_drvdata(pdev, pdata); /* Configure and enable the RTC */ @@ -438,8 +430,19 @@ static int __init mxc_rtc_probe(struct platform_device *pdev) pdata->irq = -1; } + rtc = rtc_device_register(pdev->name, &pdev->dev, &mxc_rtc_ops, + THIS_MODULE); + if (IS_ERR(rtc)) { + ret = PTR_ERR(rtc); + goto exit_clr_drvdata; + } + + pdata->rtc = rtc; + return 0; +exit_clr_drvdata: + platform_set_drvdata(pdev, NULL); exit_put_clk: clk_disable(pdata->clk); clk_put(pdata->clk); diff --git a/drivers/rtc/rtc-pcap.c b/drivers/rtc/rtc-pcap.c index a633abc4289..cd4f198cc2e 100644 --- a/drivers/rtc/rtc-pcap.c +++ b/drivers/rtc/rtc-pcap.c @@ -151,6 +151,8 @@ static int __devinit pcap_rtc_probe(struct platform_device *pdev) pcap_rtc->pcap = dev_get_drvdata(pdev->dev.parent); + platform_set_drvdata(pdev, pcap_rtc); + pcap_rtc->rtc = rtc_device_register("pcap", &pdev->dev, &pcap_rtc_ops, THIS_MODULE); if (IS_ERR(pcap_rtc->rtc)) { @@ -158,7 +160,6 @@ static int __devinit pcap_rtc_probe(struct platform_device *pdev) goto fail_rtc; } - platform_set_drvdata(pdev, pcap_rtc); timer_irq = pcap_to_irq(pcap_rtc->pcap, PCAP_IRQ_1HZ); alarm_irq = pcap_to_irq(pcap_rtc->pcap, PCAP_IRQ_TODA); @@ -177,6 +178,7 @@ fail_alarm: fail_timer: rtc_device_unregister(pcap_rtc->rtc); fail_rtc: + platform_set_drvdata(pdev, NULL); kfree(pcap_rtc); return err; } diff --git a/drivers/rtc/rtc-rp5c01.c b/drivers/rtc/rtc-rp5c01.c index 694da39b6dd..359da6d020b 100644 --- a/drivers/rtc/rtc-rp5c01.c +++ b/drivers/rtc/rtc-rp5c01.c @@ -249,15 +249,15 @@ static int __init rp5c01_rtc_probe(struct platform_device *dev) spin_lock_init(&priv->lock); + platform_set_drvdata(dev, priv); + rtc = rtc_device_register("rtc-rp5c01", &dev->dev, &rp5c01_rtc_ops, THIS_MODULE); if (IS_ERR(rtc)) { error = PTR_ERR(rtc); goto out_unmap; } - priv->rtc = rtc; - platform_set_drvdata(dev, priv); error = sysfs_create_bin_file(&dev->dev.kobj, &priv->nvram_attr); if (error) @@ -268,6 +268,7 @@ static int __init rp5c01_rtc_probe(struct platform_device *dev) out_unregister: rtc_device_unregister(rtc); out_unmap: + platform_set_drvdata(dev, NULL); iounmap(priv->regs); out_free_priv: kfree(priv); diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c index b3466c491cd..16512ecae31 100644 --- a/drivers/rtc/rtc-s3c.c +++ b/drivers/rtc/rtc-s3c.c @@ -46,6 +46,7 @@ static struct clk *rtc_clk; static void __iomem *s3c_rtc_base; static int s3c_rtc_alarmno = NO_IRQ; static int s3c_rtc_tickno = NO_IRQ; +static bool wake_en; static enum s3c_cpu_type s3c_rtc_cpu_type; static DEFINE_SPINLOCK(s3c_rtc_pie_lock); @@ -562,8 +563,12 @@ static int s3c_rtc_suspend(struct platform_device *pdev, pm_message_t state) } s3c_rtc_enable(pdev, 0); - if (device_may_wakeup(&pdev->dev)) - enable_irq_wake(s3c_rtc_alarmno); + if (device_may_wakeup(&pdev->dev) && !wake_en) { + if (enable_irq_wake(s3c_rtc_alarmno) == 0) + wake_en = true; + else + dev_err(&pdev->dev, "enable_irq_wake failed\n"); + } return 0; } @@ -579,8 +584,10 @@ static int s3c_rtc_resume(struct platform_device *pdev) writew(tmp | ticnt_en_save, s3c_rtc_base + S3C2410_RTCCON); } - if (device_may_wakeup(&pdev->dev)) + if (device_may_wakeup(&pdev->dev) && wake_en) { disable_irq_wake(s3c_rtc_alarmno); + wake_en = false; + } return 0; } diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c index 475e603fc58..86b6f1cc1b1 100644 --- a/drivers/s390/block/dasd.c +++ b/drivers/s390/block/dasd.c @@ -1742,11 +1742,20 @@ int dasd_sleep_on_interruptible(struct dasd_ccw_req *cqr) static inline int _dasd_term_running_cqr(struct dasd_device *device) { struct dasd_ccw_req *cqr; + int rc; if (list_empty(&device->ccw_queue)) return 0; cqr = list_entry(device->ccw_queue.next, struct dasd_ccw_req, devlist); - return device->discipline->term_IO(cqr); + rc = device->discipline->term_IO(cqr); + if (!rc) + /* + * CQR terminated because a more important request is pending. + * Undo decreasing of retry counter because this is + * not an error case. + */ + cqr->retries++; + return rc; } int dasd_sleep_on_immediatly(struct dasd_ccw_req *cqr) diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c index 4b60ede07f0..be55fb2b1b1 100644 --- a/drivers/s390/char/sclp_cmd.c +++ b/drivers/s390/char/sclp_cmd.c @@ -518,6 +518,8 @@ static void __init insert_increment(u16 rn, int standby, int assigned) return; new_incr->rn = rn; new_incr->standby = standby; + if (!standby) + new_incr->usecount = 1; last_rn = 0; prev = &sclp_mem_list; list_for_each_entry(incr, &sclp_mem_list, list) { diff --git a/drivers/s390/char/tape_block.c b/drivers/s390/char/tape_block.c index 83cea9a55e2..1b3924c2fff 100644 --- a/drivers/s390/char/tape_block.c +++ b/drivers/s390/char/tape_block.c @@ -236,7 +236,6 @@ tapeblock_setup_device(struct tape_device * device) disk->major = tapeblock_major; disk->first_minor = device->first_minor; disk->fops = &tapeblock_fops; - disk->events = DISK_EVENT_MEDIA_CHANGE; disk->private_data = tape_get_device(device); disk->queue = blkdat->request_queue; set_capacity(disk, 0); diff --git a/drivers/scsi/qlogicpti.c b/drivers/scsi/qlogicpti.c index e2d45c91b8e..9689d41c788 100644 --- a/drivers/scsi/qlogicpti.c +++ b/drivers/scsi/qlogicpti.c @@ -1292,8 +1292,10 @@ static struct scsi_host_template qpti_template = { .use_clustering = ENABLE_CLUSTERING, }; +static const struct of_device_id qpti_match[]; static int __devinit qpti_sbus_probe(struct platform_device *op) { + const struct of_device_id *match; struct scsi_host_template *tpnt; struct device_node *dp = op->dev.of_node; struct Scsi_Host *host; @@ -1301,9 +1303,10 @@ static int __devinit qpti_sbus_probe(struct platform_device *op) static int nqptis; const char *fcode; - if (!op->dev.of_match) + match = of_match_device(qpti_match, &op->dev); + if (!match) return -EINVAL; - tpnt = op->dev.of_match->data; + tpnt = match->data; /* Sometimes Antares cards come up not completely * setup, and we get a report of a zero IRQ. diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index e9901b8f844..ec1803a4872 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -74,8 +74,6 @@ struct kmem_cache *scsi_sdb_cache; */ #define SCSI_QUEUE_DELAY 3 -static void scsi_run_queue(struct request_queue *q); - /* * Function: scsi_unprep_request() * @@ -161,7 +159,7 @@ static int __scsi_queue_insert(struct scsi_cmnd *cmd, int reason, int unbusy) blk_requeue_request(q, cmd->request); spin_unlock_irqrestore(q->queue_lock, flags); - scsi_run_queue(q); + kblockd_schedule_work(q, &device->requeue_work); return 0; } @@ -400,10 +398,15 @@ static inline int scsi_host_is_busy(struct Scsi_Host *shost) static void scsi_run_queue(struct request_queue *q) { struct scsi_device *sdev = q->queuedata; - struct Scsi_Host *shost = sdev->host; + struct Scsi_Host *shost; LIST_HEAD(starved_list); unsigned long flags; + /* if the device is dead, sdev will be NULL, so no queue to run */ + if (!sdev) + return; + + shost = sdev->host; if (scsi_target(sdev)->single_lun) scsi_single_lun_run(sdev); @@ -433,7 +436,11 @@ static void scsi_run_queue(struct request_queue *q) continue; } - blk_run_queue_async(sdev->request_queue); + spin_unlock(shost->host_lock); + spin_lock(sdev->request_queue->queue_lock); + __blk_run_queue(sdev->request_queue); + spin_unlock(sdev->request_queue->queue_lock); + spin_lock(shost->host_lock); } /* put any unprocessed entries back */ list_splice(&starved_list, &shost->starved_list); @@ -442,6 +449,16 @@ static void scsi_run_queue(struct request_queue *q) blk_run_queue(q); } +void scsi_requeue_run_queue(struct work_struct *work) +{ + struct scsi_device *sdev; + struct request_queue *q; + + sdev = container_of(work, struct scsi_device, requeue_work); + q = sdev->request_queue; + scsi_run_queue(q); +} + /* * Function: scsi_requeue_command() * diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index 087821fac8f..58584dc0724 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -242,6 +242,7 @@ static struct scsi_device *scsi_alloc_sdev(struct scsi_target *starget, int display_failure_msg = 1, ret; struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); extern void scsi_evt_thread(struct work_struct *work); + extern void scsi_requeue_run_queue(struct work_struct *work); sdev = kzalloc(sizeof(*sdev) + shost->transportt->device_size, GFP_ATOMIC); @@ -264,6 +265,7 @@ static struct scsi_device *scsi_alloc_sdev(struct scsi_target *starget, INIT_LIST_HEAD(&sdev->event_list); spin_lock_init(&sdev->list_lock); INIT_WORK(&sdev->event_work, scsi_evt_thread); + INIT_WORK(&sdev->requeue_work, scsi_requeue_run_queue); sdev->sdev_gendev.parent = get_device(&starget->dev); sdev->sdev_target = starget; diff --git a/drivers/ssb/pci.c b/drivers/ssb/pci.c index 6f34963b3c6..7ad48585c5e 100644 --- a/drivers/ssb/pci.c +++ b/drivers/ssb/pci.c @@ -662,7 +662,6 @@ static int sprom_extract(struct ssb_bus *bus, struct ssb_sprom *out, static int ssb_pci_sprom_get(struct ssb_bus *bus, struct ssb_sprom *sprom) { - const struct ssb_sprom *fallback; int err; u16 *buf; @@ -707,10 +706,17 @@ static int ssb_pci_sprom_get(struct ssb_bus *bus, if (err) { /* All CRC attempts failed. * Maybe there is no SPROM on the device? - * If we have a fallback, use that. */ - fallback = ssb_get_fallback_sprom(); - if (fallback) { - memcpy(sprom, fallback, sizeof(*sprom)); + * Now we ask the arch code if there is some sprom + * available for this device in some other storage */ + err = ssb_fill_sprom_with_fallback(bus, sprom); + if (err) { + ssb_printk(KERN_WARNING PFX "WARNING: Using" + " fallback SPROM failed (err %d)\n", + err); + } else { + ssb_dprintk(KERN_DEBUG PFX "Using SPROM" + " revision %d provided by" + " platform.\n", sprom->revision); err = 0; goto out_free; } diff --git a/drivers/ssb/sprom.c b/drivers/ssb/sprom.c index 5f34d7a3e3a..45ff0e3a382 100644 --- a/drivers/ssb/sprom.c +++ b/drivers/ssb/sprom.c @@ -17,7 +17,7 @@ #include <linux/slab.h> -static const struct ssb_sprom *fallback_sprom; +static int(*get_fallback_sprom)(struct ssb_bus *dev, struct ssb_sprom *out); static int sprom2hex(const u16 *sprom, char *buf, size_t buf_len, @@ -145,36 +145,43 @@ out: } /** - * ssb_arch_set_fallback_sprom - Set a fallback SPROM for use if no SPROM is found. + * ssb_arch_register_fallback_sprom - Registers a method providing a + * fallback SPROM if no SPROM is found. * - * @sprom: The SPROM data structure to register. + * @sprom_callback: The callback function. * - * With this function the architecture implementation may register a fallback - * SPROM data structure. The fallback is only used for PCI based SSB devices, - * where no valid SPROM can be found in the shadow registers. + * With this function the architecture implementation may register a + * callback handler which fills the SPROM data structure. The fallback is + * only used for PCI based SSB devices, where no valid SPROM can be found + * in the shadow registers. * - * This function is useful for weird architectures that have a half-assed SSB device - * hardwired to their PCI bus. + * This function is useful for weird architectures that have a half-assed + * SSB device hardwired to their PCI bus. * - * Note that it does only work with PCI attached SSB devices. PCMCIA devices currently - * don't use this fallback. - * Architectures must provide the SPROM for native SSB devices anyway, - * so the fallback also isn't used for native devices. + * Note that it does only work with PCI attached SSB devices. PCMCIA + * devices currently don't use this fallback. + * Architectures must provide the SPROM for native SSB devices anyway, so + * the fallback also isn't used for native devices. * - * This function is available for architecture code, only. So it is not exported. + * This function is available for architecture code, only. So it is not + * exported. */ -int ssb_arch_set_fallback_sprom(const struct ssb_sprom *sprom) +int ssb_arch_register_fallback_sprom(int (*sprom_callback)(struct ssb_bus *bus, + struct ssb_sprom *out)) { - if (fallback_sprom) + if (get_fallback_sprom) return -EEXIST; - fallback_sprom = sprom; + get_fallback_sprom = sprom_callback; return 0; } -const struct ssb_sprom *ssb_get_fallback_sprom(void) +int ssb_fill_sprom_with_fallback(struct ssb_bus *bus, struct ssb_sprom *out) { - return fallback_sprom; + if (!get_fallback_sprom) + return -ENOENT; + + return get_fallback_sprom(bus, out); } /* http://bcm-v4.sipsolutions.net/802.11/IsSpromAvailable */ diff --git a/drivers/ssb/ssb_private.h b/drivers/ssb/ssb_private.h index 0331139a726..77653014db0 100644 --- a/drivers/ssb/ssb_private.h +++ b/drivers/ssb/ssb_private.h @@ -171,7 +171,8 @@ ssize_t ssb_attr_sprom_store(struct ssb_bus *bus, const char *buf, size_t count, int (*sprom_check_crc)(const u16 *sprom, size_t size), int (*sprom_write)(struct ssb_bus *bus, const u16 *sprom)); -extern const struct ssb_sprom *ssb_get_fallback_sprom(void); +extern int ssb_fill_sprom_with_fallback(struct ssb_bus *bus, + struct ssb_sprom *out); /* core.c */ diff --git a/drivers/staging/ft1000/ft1000-pcmcia/ft1000_hw.c b/drivers/staging/ft1000/ft1000-pcmcia/ft1000_hw.c index eeb7dd43f9a..830822f86e4 100644 --- a/drivers/staging/ft1000/ft1000-pcmcia/ft1000_hw.c +++ b/drivers/staging/ft1000/ft1000-pcmcia/ft1000_hw.c @@ -2288,7 +2288,3 @@ err_dev: free_netdev(dev); return NULL; } - -EXPORT_SYMBOL(init_ft1000_card); -EXPORT_SYMBOL(stop_ft1000_card); -EXPORT_SYMBOL(flarion_ft1000_cnt); diff --git a/drivers/staging/ft1000/ft1000-pcmcia/ft1000_proc.c b/drivers/staging/ft1000/ft1000-pcmcia/ft1000_proc.c index 935608e7200..bdfb1aec58d 100644 --- a/drivers/staging/ft1000/ft1000-pcmcia/ft1000_proc.c +++ b/drivers/staging/ft1000/ft1000-pcmcia/ft1000_proc.c @@ -214,6 +214,3 @@ void ft1000CleanupProc(struct net_device *dev) remove_proc_entry(FT1000_PROC, init_net.proc_net); unregister_netdevice_notifier(&ft1000_netdev_notifier); } - -EXPORT_SYMBOL(ft1000InitProc); -EXPORT_SYMBOL(ft1000CleanupProc); diff --git a/drivers/staging/gma500/Kconfig b/drivers/staging/gma500/Kconfig index 5501eb9b335..ce8bedaeaac 100644 --- a/drivers/staging/gma500/Kconfig +++ b/drivers/staging/gma500/Kconfig @@ -1,6 +1,6 @@ config DRM_PSB tristate "Intel GMA500 KMS Framebuffer" - depends on DRM && PCI + depends on DRM && PCI && X86 select FB_CFB_COPYAREA select FB_CFB_FILLRECT select FB_CFB_IMAGEBLIT diff --git a/drivers/staging/intel_sst/intelmid_v1_control.c b/drivers/staging/intel_sst/intelmid_v1_control.c index 9cc15c1c18d..1ea81421805 100644 --- a/drivers/staging/intel_sst/intelmid_v1_control.c +++ b/drivers/staging/intel_sst/intelmid_v1_control.c @@ -28,6 +28,7 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include <linux/pci.h> +#include <linux/delay.h> #include <linux/file.h> #include <asm/mrst.h> #include <sound/pcm.h> diff --git a/drivers/staging/intel_sst/intelmid_v2_control.c b/drivers/staging/intel_sst/intelmid_v2_control.c index 26d815a67eb..3c6b3abff3c 100644 --- a/drivers/staging/intel_sst/intelmid_v2_control.c +++ b/drivers/staging/intel_sst/intelmid_v2_control.c @@ -29,6 +29,7 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include <linux/pci.h> +#include <linux/delay.h> #include <linux/file.h> #include "intel_sst.h" #include "intelmid_snd_control.h" diff --git a/drivers/staging/olpc_dcon/olpc_dcon_xo_1.c b/drivers/staging/olpc_dcon/olpc_dcon_xo_1.c index b5d21f6497f..22c04eabed4 100644 --- a/drivers/staging/olpc_dcon/olpc_dcon_xo_1.c +++ b/drivers/staging/olpc_dcon/olpc_dcon_xo_1.c @@ -12,6 +12,7 @@ */ #include <linux/cs5535.h> #include <linux/gpio.h> +#include <linux/delay.h> #include <asm/olpc.h> #include "olpc_dcon.h" diff --git a/drivers/staging/rts_pstor/debug.h b/drivers/staging/rts_pstor/debug.h index e1408b0e7ae..ab305be96fb 100644 --- a/drivers/staging/rts_pstor/debug.h +++ b/drivers/staging/rts_pstor/debug.h @@ -28,7 +28,7 @@ #define RTSX_STOR "rts_pstor: " -#if CONFIG_RTS_PSTOR_DEBUG +#ifdef CONFIG_RTS_PSTOR_DEBUG #define RTSX_DEBUGP(x...) printk(KERN_DEBUG RTSX_STOR x) #define RTSX_DEBUGPN(x...) printk(KERN_DEBUG x) #define RTSX_DEBUGPX(x...) printk(x) diff --git a/drivers/staging/rts_pstor/ms.c b/drivers/staging/rts_pstor/ms.c index 810e170894f..d89795c6a3a 100644 --- a/drivers/staging/rts_pstor/ms.c +++ b/drivers/staging/rts_pstor/ms.c @@ -23,6 +23,7 @@ #include <linux/blkdev.h> #include <linux/kthread.h> #include <linux/sched.h> +#include <linux/vmalloc.h> #include "rtsx.h" #include "rtsx_transport.h" diff --git a/drivers/staging/rts_pstor/rtsx_chip.c b/drivers/staging/rts_pstor/rtsx_chip.c index d2f1c715a68..4e60780ea80 100644 --- a/drivers/staging/rts_pstor/rtsx_chip.c +++ b/drivers/staging/rts_pstor/rtsx_chip.c @@ -24,6 +24,7 @@ #include <linux/kthread.h> #include <linux/sched.h> #include <linux/workqueue.h> +#include <linux/vmalloc.h> #include "rtsx.h" #include "rtsx_transport.h" @@ -1311,11 +1312,11 @@ void rtsx_polling_func(struct rtsx_chip *chip) #ifdef SUPPORT_OCP if (CHECK_LUN_MODE(chip, SD_MS_2LUN)) { - #if CONFIG_RTS_PSTOR_DEBUG +#ifdef CONFIG_RTS_PSTOR_DEBUG if (chip->ocp_stat & (SD_OC_NOW | SD_OC_EVER | MS_OC_NOW | MS_OC_EVER)) { RTSX_DEBUGP("Over current, OCPSTAT is 0x%x\n", chip->ocp_stat); } - #endif +#endif if (chip->ocp_stat & (SD_OC_NOW | SD_OC_EVER)) { if (chip->card_exist & SD_CARD) { diff --git a/drivers/staging/rts_pstor/rtsx_scsi.c b/drivers/staging/rts_pstor/rtsx_scsi.c index 20c2464a20f..7de1fae443f 100644 --- a/drivers/staging/rts_pstor/rtsx_scsi.c +++ b/drivers/staging/rts_pstor/rtsx_scsi.c @@ -23,6 +23,7 @@ #include <linux/blkdev.h> #include <linux/kthread.h> #include <linux/sched.h> +#include <linux/vmalloc.h> #include "rtsx.h" #include "rtsx_transport.h" diff --git a/drivers/staging/rts_pstor/sd.c b/drivers/staging/rts_pstor/sd.c index 8d066bd428c..b1277a6c7a8 100644 --- a/drivers/staging/rts_pstor/sd.c +++ b/drivers/staging/rts_pstor/sd.c @@ -909,7 +909,7 @@ static int sd_change_phase(struct rtsx_chip *chip, u8 sample_point, u8 tune_dir) RTSX_WRITE_REG(chip, SD_VPCLK0_CTL, PHASE_NOT_RESET, PHASE_NOT_RESET); RTSX_WRITE_REG(chip, CLK_CTL, CHANGE_CLK, 0); } else { -#if CONFIG_RTS_PSTOR_DEBUG +#ifdef CONFIG_RTS_PSTOR_DEBUG rtsx_read_register(chip, SD_VP_CTL, &val); RTSX_DEBUGP("SD_VP_CTL: 0x%x\n", val); rtsx_read_register(chip, SD_DCMPS_CTL, &val); @@ -958,7 +958,7 @@ static int sd_change_phase(struct rtsx_chip *chip, u8 sample_point, u8 tune_dir) return STATUS_SUCCESS; Fail: -#if CONFIG_RTS_PSTOR_DEBUG +#ifdef CONFIG_RTS_PSTOR_DEBUG rtsx_read_register(chip, SD_VP_CTL, &val); RTSX_DEBUGP("SD_VP_CTL: 0x%x\n", val); rtsx_read_register(chip, SD_DCMPS_CTL, &val); diff --git a/drivers/staging/rts_pstor/trace.h b/drivers/staging/rts_pstor/trace.h index 2c668bae6ff..bc83b49a4eb 100644 --- a/drivers/staging/rts_pstor/trace.h +++ b/drivers/staging/rts_pstor/trace.h @@ -82,7 +82,7 @@ do { \ #define TRACE_GOTO(chip, label) goto label #endif -#if CONFIG_RTS_PSTOR_DEBUG +#ifdef CONFIG_RTS_PSTOR_DEBUG static inline void rtsx_dump(u8 *buf, int buf_len) { int i; diff --git a/drivers/staging/rts_pstor/xd.c b/drivers/staging/rts_pstor/xd.c index 7bcd468b8f2..9f3add1e8f5 100644 --- a/drivers/staging/rts_pstor/xd.c +++ b/drivers/staging/rts_pstor/xd.c @@ -23,6 +23,7 @@ #include <linux/blkdev.h> #include <linux/kthread.h> #include <linux/sched.h> +#include <linux/vmalloc.h> #include "rtsx.h" #include "rtsx_transport.h" diff --git a/drivers/staging/solo6x10/Kconfig b/drivers/staging/solo6x10/Kconfig index 2cf77c94086..03dcac4ea4d 100644 --- a/drivers/staging/solo6x10/Kconfig +++ b/drivers/staging/solo6x10/Kconfig @@ -2,6 +2,7 @@ config SOLO6X10 tristate "Softlogic 6x10 MPEG codec cards" depends on PCI && VIDEO_DEV && SND && I2C select VIDEOBUF_DMA_SG + select SND_PCM ---help--- This driver supports the Softlogic based MPEG-4 and h.264 codec codec cards. diff --git a/drivers/staging/usbip/vhci_hcd.c b/drivers/staging/usbip/vhci_hcd.c index 0f02a4b12ae..4f4f13321f4 100644 --- a/drivers/staging/usbip/vhci_hcd.c +++ b/drivers/staging/usbip/vhci_hcd.c @@ -876,8 +876,10 @@ static void vhci_shutdown_connection(struct usbip_device *ud) } /* kill threads related to this sdev, if v.c. exists */ - kthread_stop(vdev->ud.tcp_rx); - kthread_stop(vdev->ud.tcp_tx); + if (vdev->ud.tcp_rx) + kthread_stop(vdev->ud.tcp_rx); + if (vdev->ud.tcp_tx) + kthread_stop(vdev->ud.tcp_tx); usbip_uinfo("stop threads\n"); @@ -949,9 +951,6 @@ static void vhci_device_init(struct vhci_device *vdev) { memset(vdev, 0, sizeof(*vdev)); - vdev->ud.tcp_rx = kthread_create(vhci_rx_loop, &vdev->ud, "vhci_rx"); - vdev->ud.tcp_tx = kthread_create(vhci_tx_loop, &vdev->ud, "vhci_tx"); - vdev->ud.side = USBIP_VHCI; vdev->ud.status = VDEV_ST_NULL; /* vdev->ud.lock = SPIN_LOCK_UNLOCKED; */ @@ -1139,7 +1138,7 @@ static int vhci_hcd_probe(struct platform_device *pdev) usbip_uerr("create hcd failed\n"); return -ENOMEM; } - + hcd->has_tt = 1; /* this is private data for vhci_hcd */ the_controller = hcd_to_vhci(hcd); diff --git a/drivers/staging/usbip/vhci_sysfs.c b/drivers/staging/usbip/vhci_sysfs.c index 3f2459f3041..e2dadbd5ef1 100644 --- a/drivers/staging/usbip/vhci_sysfs.c +++ b/drivers/staging/usbip/vhci_sysfs.c @@ -21,6 +21,7 @@ #include "vhci.h" #include <linux/in.h> +#include <linux/kthread.h> /* TODO: refine locking ?*/ @@ -220,13 +221,13 @@ static ssize_t store_attach(struct device *dev, struct device_attribute *attr, vdev->ud.tcp_socket = socket; vdev->ud.status = VDEV_ST_NOTASSIGNED; - wake_up_process(vdev->ud.tcp_rx); - wake_up_process(vdev->ud.tcp_tx); - spin_unlock(&vdev->ud.lock); spin_unlock(&the_controller->lock); /* end the lock */ + vdev->ud.tcp_rx = kthread_run(vhci_rx_loop, &vdev->ud, "vhci_rx"); + vdev->ud.tcp_tx = kthread_run(vhci_tx_loop, &vdev->ud, "vhci_tx"); + rh_port_connect(rhport, speed); return count; diff --git a/drivers/staging/wlan-ng/cfg80211.c b/drivers/staging/wlan-ng/cfg80211.c index 6a71f52c59b..76378397b76 100644 --- a/drivers/staging/wlan-ng/cfg80211.c +++ b/drivers/staging/wlan-ng/cfg80211.c @@ -273,7 +273,7 @@ exit: } int prism2_set_default_key(struct wiphy *wiphy, struct net_device *dev, - u8 key_index) + u8 key_index, bool unicast, bool multicast) { wlandevice_t *wlandev = dev->ml_priv; diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig index 80484af781e..b1f0f83b870 100644 --- a/drivers/tty/serial/Kconfig +++ b/drivers/tty/serial/Kconfig @@ -1391,6 +1391,14 @@ config SERIAL_OF_PLATFORM_NWPSERIAL_CONSOLE help Support for Console on the NWP serial ports. +config SERIAL_LANTIQ + bool "Lantiq serial driver" + depends on LANTIQ + select SERIAL_CORE + select SERIAL_CORE_CONSOLE + help + Support for console and UART on Lantiq SoCs. + config SERIAL_QE tristate "Freescale QUICC Engine serial port support" depends on QUICC_ENGINE diff --git a/drivers/tty/serial/Makefile b/drivers/tty/serial/Makefile index fee0690ef8e..35276043d9d 100644 --- a/drivers/tty/serial/Makefile +++ b/drivers/tty/serial/Makefile @@ -94,3 +94,4 @@ obj-$(CONFIG_SERIAL_IFX6X60) += ifx6x60.o obj-$(CONFIG_SERIAL_PCH_UART) += pch_uart.o obj-$(CONFIG_SERIAL_MSM_SMD) += msm_smd_tty.o obj-$(CONFIG_SERIAL_MXS_AUART) += mxs-auart.o +obj-$(CONFIG_SERIAL_LANTIQ) += lantiq.o diff --git a/drivers/tty/serial/lantiq.c b/drivers/tty/serial/lantiq.c new file mode 100644 index 00000000000..58cf279ed87 --- /dev/null +++ b/drivers/tty/serial/lantiq.c @@ -0,0 +1,756 @@ +/* + * Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Copyright (C) 2004 Infineon IFAP DC COM CPE + * Copyright (C) 2007 Felix Fietkau <nbd@openwrt.org> + * Copyright (C) 2007 John Crispin <blogic@openwrt.org> + * Copyright (C) 2010 Thomas Langer, <thomas.langer@lantiq.com> + */ + +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/ioport.h> +#include <linux/init.h> +#include <linux/console.h> +#include <linux/sysrq.h> +#include <linux/device.h> +#include <linux/tty.h> +#include <linux/tty_flip.h> +#include <linux/serial_core.h> +#include <linux/serial.h> +#include <linux/platform_device.h> +#include <linux/io.h> +#include <linux/clk.h> + +#include <lantiq_soc.h> + +#define PORT_LTQ_ASC 111 +#define MAXPORTS 2 +#define UART_DUMMY_UER_RX 1 +#define DRVNAME "ltq_asc" +#ifdef __BIG_ENDIAN +#define LTQ_ASC_TBUF (0x0020 + 3) +#define LTQ_ASC_RBUF (0x0024 + 3) +#else +#define LTQ_ASC_TBUF 0x0020 +#define LTQ_ASC_RBUF 0x0024 +#endif +#define LTQ_ASC_FSTAT 0x0048 +#define LTQ_ASC_WHBSTATE 0x0018 +#define LTQ_ASC_STATE 0x0014 +#define LTQ_ASC_IRNCR 0x00F8 +#define LTQ_ASC_CLC 0x0000 +#define LTQ_ASC_ID 0x0008 +#define LTQ_ASC_PISEL 0x0004 +#define LTQ_ASC_TXFCON 0x0044 +#define LTQ_ASC_RXFCON 0x0040 +#define LTQ_ASC_CON 0x0010 +#define LTQ_ASC_BG 0x0050 +#define LTQ_ASC_IRNREN 0x00F4 + +#define ASC_IRNREN_TX 0x1 +#define ASC_IRNREN_RX 0x2 +#define ASC_IRNREN_ERR 0x4 +#define ASC_IRNREN_TX_BUF 0x8 +#define ASC_IRNCR_TIR 0x1 +#define ASC_IRNCR_RIR 0x2 +#define ASC_IRNCR_EIR 0x4 + +#define ASCOPT_CSIZE 0x3 +#define TXFIFO_FL 1 +#define RXFIFO_FL 1 +#define ASCCLC_DISS 0x2 +#define ASCCLC_RMCMASK 0x0000FF00 +#define ASCCLC_RMCOFFSET 8 +#define ASCCON_M_8ASYNC 0x0 +#define ASCCON_M_7ASYNC 0x2 +#define ASCCON_ODD 0x00000020 +#define ASCCON_STP 0x00000080 +#define ASCCON_BRS 0x00000100 +#define ASCCON_FDE 0x00000200 +#define ASCCON_R 0x00008000 +#define ASCCON_FEN 0x00020000 +#define ASCCON_ROEN 0x00080000 +#define ASCCON_TOEN 0x00100000 +#define ASCSTATE_PE 0x00010000 +#define ASCSTATE_FE 0x00020000 +#define ASCSTATE_ROE 0x00080000 +#define ASCSTATE_ANY (ASCSTATE_ROE|ASCSTATE_PE|ASCSTATE_FE) +#define ASCWHBSTATE_CLRREN 0x00000001 +#define ASCWHBSTATE_SETREN 0x00000002 +#define ASCWHBSTATE_CLRPE 0x00000004 +#define ASCWHBSTATE_CLRFE 0x00000008 +#define ASCWHBSTATE_CLRROE 0x00000020 +#define ASCTXFCON_TXFEN 0x0001 +#define ASCTXFCON_TXFFLU 0x0002 +#define ASCTXFCON_TXFITLMASK 0x3F00 +#define ASCTXFCON_TXFITLOFF 8 +#define ASCRXFCON_RXFEN 0x0001 +#define ASCRXFCON_RXFFLU 0x0002 +#define ASCRXFCON_RXFITLMASK 0x3F00 +#define ASCRXFCON_RXFITLOFF 8 +#define ASCFSTAT_RXFFLMASK 0x003F +#define ASCFSTAT_TXFFLMASK 0x3F00 +#define ASCFSTAT_TXFREEMASK 0x3F000000 +#define ASCFSTAT_TXFREEOFF 24 + +static void lqasc_tx_chars(struct uart_port *port); +static struct ltq_uart_port *lqasc_port[MAXPORTS]; +static struct uart_driver lqasc_reg; +static DEFINE_SPINLOCK(ltq_asc_lock); + +struct ltq_uart_port { + struct uart_port port; + struct clk *clk; + unsigned int tx_irq; + unsigned int rx_irq; + unsigned int err_irq; +}; + +static inline struct +ltq_uart_port *to_ltq_uart_port(struct uart_port *port) +{ + return container_of(port, struct ltq_uart_port, port); +} + +static void +lqasc_stop_tx(struct uart_port *port) +{ + return; +} + +static void +lqasc_start_tx(struct uart_port *port) +{ + unsigned long flags; + spin_lock_irqsave(<q_asc_lock, flags); + lqasc_tx_chars(port); + spin_unlock_irqrestore(<q_asc_lock, flags); + return; +} + +static void +lqasc_stop_rx(struct uart_port *port) +{ + ltq_w32(ASCWHBSTATE_CLRREN, port->membase + LTQ_ASC_WHBSTATE); +} + +static void +lqasc_enable_ms(struct uart_port *port) +{ +} + +static int +lqasc_rx_chars(struct uart_port *port) +{ + struct tty_struct *tty = tty_port_tty_get(&port->state->port); + unsigned int ch = 0, rsr = 0, fifocnt; + + if (!tty) { + dev_dbg(port->dev, "%s:tty is busy now", __func__); + return -EBUSY; + } + fifocnt = + ltq_r32(port->membase + LTQ_ASC_FSTAT) & ASCFSTAT_RXFFLMASK; + while (fifocnt--) { + u8 flag = TTY_NORMAL; + ch = ltq_r8(port->membase + LTQ_ASC_RBUF); + rsr = (ltq_r32(port->membase + LTQ_ASC_STATE) + & ASCSTATE_ANY) | UART_DUMMY_UER_RX; + tty_flip_buffer_push(tty); + port->icount.rx++; + + /* + * Note that the error handling code is + * out of the main execution path + */ + if (rsr & ASCSTATE_ANY) { + if (rsr & ASCSTATE_PE) { + port->icount.parity++; + ltq_w32_mask(0, ASCWHBSTATE_CLRPE, + port->membase + LTQ_ASC_WHBSTATE); + } else if (rsr & ASCSTATE_FE) { + port->icount.frame++; + ltq_w32_mask(0, ASCWHBSTATE_CLRFE, + port->membase + LTQ_ASC_WHBSTATE); + } + if (rsr & ASCSTATE_ROE) { + port->icount.overrun++; + ltq_w32_mask(0, ASCWHBSTATE_CLRROE, + port->membase + LTQ_ASC_WHBSTATE); + } + + rsr &= port->read_status_mask; + + if (rsr & ASCSTATE_PE) + flag = TTY_PARITY; + else if (rsr & ASCSTATE_FE) + flag = TTY_FRAME; + } + + if ((rsr & port->ignore_status_mask) == 0) + tty_insert_flip_char(tty, ch, flag); + + if (rsr & ASCSTATE_ROE) + /* + * Overrun is special, since it's reported + * immediately, and doesn't affect the current + * character + */ + tty_insert_flip_char(tty, 0, TTY_OVERRUN); + } + if (ch != 0) + tty_flip_buffer_push(tty); + tty_kref_put(tty); + return 0; +} + +static void +lqasc_tx_chars(struct uart_port *port) +{ + struct circ_buf *xmit = &port->state->xmit; + if (uart_tx_stopped(port)) { + lqasc_stop_tx(port); + return; + } + + while (((ltq_r32(port->membase + LTQ_ASC_FSTAT) & + ASCFSTAT_TXFREEMASK) >> ASCFSTAT_TXFREEOFF) != 0) { + if (port->x_char) { + ltq_w8(port->x_char, port->membase + LTQ_ASC_TBUF); + port->icount.tx++; + port->x_char = 0; + continue; + } + + if (uart_circ_empty(xmit)) + break; + + ltq_w8(port->state->xmit.buf[port->state->xmit.tail], + port->membase + LTQ_ASC_TBUF); + xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1); + port->icount.tx++; + } + + if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) + uart_write_wakeup(port); +} + +static irqreturn_t +lqasc_tx_int(int irq, void *_port) +{ + unsigned long flags; + struct uart_port *port = (struct uart_port *)_port; + spin_lock_irqsave(<q_asc_lock, flags); + ltq_w32(ASC_IRNCR_TIR, port->membase + LTQ_ASC_IRNCR); + spin_unlock_irqrestore(<q_asc_lock, flags); + lqasc_start_tx(port); + return IRQ_HANDLED; +} + +static irqreturn_t +lqasc_err_int(int irq, void *_port) +{ + unsigned long flags; + struct uart_port *port = (struct uart_port *)_port; + spin_lock_irqsave(<q_asc_lock, flags); + /* clear any pending interrupts */ + ltq_w32_mask(0, ASCWHBSTATE_CLRPE | ASCWHBSTATE_CLRFE | + ASCWHBSTATE_CLRROE, port->membase + LTQ_ASC_WHBSTATE); + spin_unlock_irqrestore(<q_asc_lock, flags); + return IRQ_HANDLED; +} + +static irqreturn_t +lqasc_rx_int(int irq, void *_port) +{ + unsigned long flags; + struct uart_port *port = (struct uart_port *)_port; + spin_lock_irqsave(<q_asc_lock, flags); + ltq_w32(ASC_IRNCR_RIR, port->membase + LTQ_ASC_IRNCR); + lqasc_rx_chars(port); + spin_unlock_irqrestore(<q_asc_lock, flags); + return IRQ_HANDLED; +} + +static unsigned int +lqasc_tx_empty(struct uart_port *port) +{ + int status; + status = ltq_r32(port->membase + LTQ_ASC_FSTAT) & ASCFSTAT_TXFFLMASK; + return status ? 0 : TIOCSER_TEMT; +} + +static unsigned int +lqasc_get_mctrl(struct uart_port *port) +{ + return TIOCM_CTS | TIOCM_CAR | TIOCM_DSR; +} + +static void +lqasc_set_mctrl(struct uart_port *port, u_int mctrl) +{ +} + +static void +lqasc_break_ctl(struct uart_port *port, int break_state) +{ +} + +static int +lqasc_startup(struct uart_port *port) +{ + struct ltq_uart_port *ltq_port = to_ltq_uart_port(port); + int retval; + + port->uartclk = clk_get_rate(ltq_port->clk); + + ltq_w32_mask(ASCCLC_DISS | ASCCLC_RMCMASK, (1 << ASCCLC_RMCOFFSET), + port->membase + LTQ_ASC_CLC); + + ltq_w32(0, port->membase + LTQ_ASC_PISEL); + ltq_w32( + ((TXFIFO_FL << ASCTXFCON_TXFITLOFF) & ASCTXFCON_TXFITLMASK) | + ASCTXFCON_TXFEN | ASCTXFCON_TXFFLU, + port->membase + LTQ_ASC_TXFCON); + ltq_w32( + ((RXFIFO_FL << ASCRXFCON_RXFITLOFF) & ASCRXFCON_RXFITLMASK) + | ASCRXFCON_RXFEN | ASCRXFCON_RXFFLU, + port->membase + LTQ_ASC_RXFCON); + /* make sure other settings are written to hardware before + * setting enable bits + */ + wmb(); + ltq_w32_mask(0, ASCCON_M_8ASYNC | ASCCON_FEN | ASCCON_TOEN | + ASCCON_ROEN, port->membase + LTQ_ASC_CON); + + retval = request_irq(ltq_port->tx_irq, lqasc_tx_int, + IRQF_DISABLED, "asc_tx", port); + if (retval) { + pr_err("failed to request lqasc_tx_int\n"); + return retval; + } + + retval = request_irq(ltq_port->rx_irq, lqasc_rx_int, + IRQF_DISABLED, "asc_rx", port); + if (retval) { + pr_err("failed to request lqasc_rx_int\n"); + goto err1; + } + + retval = request_irq(ltq_port->err_irq, lqasc_err_int, + IRQF_DISABLED, "asc_err", port); + if (retval) { + pr_err("failed to request lqasc_err_int\n"); + goto err2; + } + + ltq_w32(ASC_IRNREN_RX | ASC_IRNREN_ERR | ASC_IRNREN_TX, + port->membase + LTQ_ASC_IRNREN); + return 0; + +err2: + free_irq(ltq_port->rx_irq, port); +err1: + free_irq(ltq_port->tx_irq, port); + return retval; +} + +static void +lqasc_shutdown(struct uart_port *port) +{ + struct ltq_uart_port *ltq_port = to_ltq_uart_port(port); + free_irq(ltq_port->tx_irq, port); + free_irq(ltq_port->rx_irq, port); + free_irq(ltq_port->err_irq, port); + + ltq_w32(0, port->membase + LTQ_ASC_CON); + ltq_w32_mask(ASCRXFCON_RXFEN, ASCRXFCON_RXFFLU, + port->membase + LTQ_ASC_RXFCON); + ltq_w32_mask(ASCTXFCON_TXFEN, ASCTXFCON_TXFFLU, + port->membase + LTQ_ASC_TXFCON); +} + +static void +lqasc_set_termios(struct uart_port *port, + struct ktermios *new, struct ktermios *old) +{ + unsigned int cflag; + unsigned int iflag; + unsigned int divisor; + unsigned int baud; + unsigned int con = 0; + unsigned long flags; + + cflag = new->c_cflag; + iflag = new->c_iflag; + + switch (cflag & CSIZE) { + case CS7: + con = ASCCON_M_7ASYNC; + break; + + case CS5: + case CS6: + default: + new->c_cflag &= ~ CSIZE; + new->c_cflag |= CS8; + con = ASCCON_M_8ASYNC; + break; + } + + cflag &= ~CMSPAR; /* Mark/Space parity is not supported */ + + if (cflag & CSTOPB) + con |= ASCCON_STP; + + if (cflag & PARENB) { + if (!(cflag & PARODD)) + con &= ~ASCCON_ODD; + else + con |= ASCCON_ODD; + } + + port->read_status_mask = ASCSTATE_ROE; + if (iflag & INPCK) + port->read_status_mask |= ASCSTATE_FE | ASCSTATE_PE; + + port->ignore_status_mask = 0; + if (iflag & IGNPAR) + port->ignore_status_mask |= ASCSTATE_FE | ASCSTATE_PE; + + if (iflag & IGNBRK) { + /* + * If we're ignoring parity and break indicators, + * ignore overruns too (for real raw support). + */ + if (iflag & IGNPAR) + port->ignore_status_mask |= ASCSTATE_ROE; + } + + if ((cflag & CREAD) == 0) + port->ignore_status_mask |= UART_DUMMY_UER_RX; + + /* set error signals - framing, parity and overrun, enable receiver */ + con |= ASCCON_FEN | ASCCON_TOEN | ASCCON_ROEN; + + spin_lock_irqsave(<q_asc_lock, flags); + + /* set up CON */ + ltq_w32_mask(0, con, port->membase + LTQ_ASC_CON); + + /* Set baud rate - take a divider of 2 into account */ + baud = uart_get_baud_rate(port, new, old, 0, port->uartclk / 16); + divisor = uart_get_divisor(port, baud); + divisor = divisor / 2 - 1; + + /* disable the baudrate generator */ + ltq_w32_mask(ASCCON_R, 0, port->membase + LTQ_ASC_CON); + + /* make sure the fractional divider is off */ + ltq_w32_mask(ASCCON_FDE, 0, port->membase + LTQ_ASC_CON); + + /* set up to use divisor of 2 */ + ltq_w32_mask(ASCCON_BRS, 0, port->membase + LTQ_ASC_CON); + + /* now we can write the new baudrate into the register */ + ltq_w32(divisor, port->membase + LTQ_ASC_BG); + + /* turn the baudrate generator back on */ + ltq_w32_mask(0, ASCCON_R, port->membase + LTQ_ASC_CON); + + /* enable rx */ + ltq_w32(ASCWHBSTATE_SETREN, port->membase + LTQ_ASC_WHBSTATE); + + spin_unlock_irqrestore(<q_asc_lock, flags); + + /* Don't rewrite B0 */ + if (tty_termios_baud_rate(new)) + tty_termios_encode_baud_rate(new, baud, baud); +} + +static const char* +lqasc_type(struct uart_port *port) +{ + if (port->type == PORT_LTQ_ASC) + return DRVNAME; + else + return NULL; +} + +static void +lqasc_release_port(struct uart_port *port) +{ + if (port->flags & UPF_IOREMAP) { + iounmap(port->membase); + port->membase = NULL; + } +} + +static int +lqasc_request_port(struct uart_port *port) +{ + struct platform_device *pdev = to_platform_device(port->dev); + struct resource *res; + int size; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(&pdev->dev, "cannot obtain I/O memory region"); + return -ENODEV; + } + size = resource_size(res); + + res = devm_request_mem_region(&pdev->dev, res->start, + size, dev_name(&pdev->dev)); + if (!res) { + dev_err(&pdev->dev, "cannot request I/O memory region"); + return -EBUSY; + } + + if (port->flags & UPF_IOREMAP) { + port->membase = devm_ioremap_nocache(&pdev->dev, + port->mapbase, size); + if (port->membase == NULL) + return -ENOMEM; + } + return 0; +} + +static void +lqasc_config_port(struct uart_port *port, int flags) +{ + if (flags & UART_CONFIG_TYPE) { + port->type = PORT_LTQ_ASC; + lqasc_request_port(port); + } +} + +static int +lqasc_verify_port(struct uart_port *port, + struct serial_struct *ser) +{ + int ret = 0; + if (ser->type != PORT_UNKNOWN && ser->type != PORT_LTQ_ASC) + ret = -EINVAL; + if (ser->irq < 0 || ser->irq >= NR_IRQS) + ret = -EINVAL; + if (ser->baud_base < 9600) + ret = -EINVAL; + return ret; +} + +static struct uart_ops lqasc_pops = { + .tx_empty = lqasc_tx_empty, + .set_mctrl = lqasc_set_mctrl, + .get_mctrl = lqasc_get_mctrl, + .stop_tx = lqasc_stop_tx, + .start_tx = lqasc_start_tx, + .stop_rx = lqasc_stop_rx, + .enable_ms = lqasc_enable_ms, + .break_ctl = lqasc_break_ctl, + .startup = lqasc_startup, + .shutdown = lqasc_shutdown, + .set_termios = lqasc_set_termios, + .type = lqasc_type, + .release_port = lqasc_release_port, + .request_port = lqasc_request_port, + .config_port = lqasc_config_port, + .verify_port = lqasc_verify_port, +}; + +static void +lqasc_console_putchar(struct uart_port *port, int ch) +{ + int fifofree; + + if (!port->membase) + return; + + do { + fifofree = (ltq_r32(port->membase + LTQ_ASC_FSTAT) + & ASCFSTAT_TXFREEMASK) >> ASCFSTAT_TXFREEOFF; + } while (fifofree == 0); + ltq_w8(ch, port->membase + LTQ_ASC_TBUF); +} + + +static void +lqasc_console_write(struct console *co, const char *s, u_int count) +{ + struct ltq_uart_port *ltq_port; + struct uart_port *port; + unsigned long flags; + + if (co->index >= MAXPORTS) + return; + + ltq_port = lqasc_port[co->index]; + if (!ltq_port) + return; + + port = <q_port->port; + + spin_lock_irqsave(<q_asc_lock, flags); + uart_console_write(port, s, count, lqasc_console_putchar); + spin_unlock_irqrestore(<q_asc_lock, flags); +} + +static int __init +lqasc_console_setup(struct console *co, char *options) +{ + struct ltq_uart_port *ltq_port; + struct uart_port *port; + int baud = 115200; + int bits = 8; + int parity = 'n'; + int flow = 'n'; + + if (co->index >= MAXPORTS) + return -ENODEV; + + ltq_port = lqasc_port[co->index]; + if (!ltq_port) + return -ENODEV; + + port = <q_port->port; + + port->uartclk = clk_get_rate(ltq_port->clk); + + if (options) + uart_parse_options(options, &baud, &parity, &bits, &flow); + return uart_set_options(port, co, baud, parity, bits, flow); +} + +static struct console lqasc_console = { + .name = "ttyLTQ", + .write = lqasc_console_write, + .device = uart_console_device, + .setup = lqasc_console_setup, + .flags = CON_PRINTBUFFER, + .index = -1, + .data = &lqasc_reg, +}; + +static int __init +lqasc_console_init(void) +{ + register_console(&lqasc_console); + return 0; +} +console_initcall(lqasc_console_init); + +static struct uart_driver lqasc_reg = { + .owner = THIS_MODULE, + .driver_name = DRVNAME, + .dev_name = "ttyLTQ", + .major = 0, + .minor = 0, + .nr = MAXPORTS, + .cons = &lqasc_console, +}; + +static int __init +lqasc_probe(struct platform_device *pdev) +{ + struct ltq_uart_port *ltq_port; + struct uart_port *port; + struct resource *mmres, *irqres; + int tx_irq, rx_irq, err_irq; + struct clk *clk; + int ret; + + mmres = platform_get_resource(pdev, IORESOURCE_MEM, 0); + irqres = platform_get_resource(pdev, IORESOURCE_IRQ, 0); + if (!mmres || !irqres) + return -ENODEV; + + if (pdev->id >= MAXPORTS) + return -EBUSY; + + if (lqasc_port[pdev->id] != NULL) + return -EBUSY; + + clk = clk_get(&pdev->dev, "fpi"); + if (IS_ERR(clk)) { + pr_err("failed to get fpi clk\n"); + return -ENOENT; + } + + tx_irq = platform_get_irq_byname(pdev, "tx"); + rx_irq = platform_get_irq_byname(pdev, "rx"); + err_irq = platform_get_irq_byname(pdev, "err"); + if ((tx_irq < 0) | (rx_irq < 0) | (err_irq < 0)) + return -ENODEV; + + ltq_port = kzalloc(sizeof(struct ltq_uart_port), GFP_KERNEL); + if (!ltq_port) + return -ENOMEM; + + port = <q_port->port; + + port->iotype = SERIAL_IO_MEM; + port->flags = ASYNC_BOOT_AUTOCONF | UPF_IOREMAP; + port->ops = &lqasc_pops; + port->fifosize = 16; + port->type = PORT_LTQ_ASC, + port->line = pdev->id; + port->dev = &pdev->dev; + + port->irq = tx_irq; /* unused, just to be backward-compatibe */ + port->mapbase = mmres->start; + + ltq_port->clk = clk; + + ltq_port->tx_irq = tx_irq; + ltq_port->rx_irq = rx_irq; + ltq_port->err_irq = err_irq; + + lqasc_port[pdev->id] = ltq_port; + platform_set_drvdata(pdev, ltq_port); + + ret = uart_add_one_port(&lqasc_reg, port); + + return ret; +} + +static struct platform_driver lqasc_driver = { + .driver = { + .name = DRVNAME, + .owner = THIS_MODULE, + }, +}; + +int __init +init_lqasc(void) +{ + int ret; + + ret = uart_register_driver(&lqasc_reg); + if (ret != 0) + return ret; + + ret = platform_driver_probe(&lqasc_driver, lqasc_probe); + if (ret != 0) + uart_unregister_driver(&lqasc_reg); + + return ret; +} + +module_init(init_lqasc); + +MODULE_DESCRIPTION("Lantiq serial port driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/tty/serial/of_serial.c b/drivers/tty/serial/of_serial.c index 0e8eec516df..c911b2419ab 100644 --- a/drivers/tty/serial/of_serial.c +++ b/drivers/tty/serial/of_serial.c @@ -80,14 +80,17 @@ static int __devinit of_platform_serial_setup(struct platform_device *ofdev, /* * Try to register a serial port */ +static struct of_device_id of_platform_serial_table[]; static int __devinit of_platform_serial_probe(struct platform_device *ofdev) { + const struct of_device_id *match; struct of_serial_info *info; struct uart_port port; int port_type; int ret; - if (!ofdev->dev.of_match) + match = of_match_device(of_platform_serial_table, &ofdev->dev); + if (!match) return -EINVAL; if (of_find_property(ofdev->dev.of_node, "used-by-rtas", NULL)) @@ -97,7 +100,7 @@ static int __devinit of_platform_serial_probe(struct platform_device *ofdev) if (info == NULL) return -ENOMEM; - port_type = (unsigned long)ofdev->dev.of_match->data; + port_type = (unsigned long)match->data; ret = of_platform_serial_setup(ofdev, port_type, &port); if (ret) goto out; diff --git a/drivers/usb/gadget/fsl_qe_udc.c b/drivers/usb/gadget/fsl_qe_udc.c index 36613b37c50..3a68e09309f 100644 --- a/drivers/usb/gadget/fsl_qe_udc.c +++ b/drivers/usb/gadget/fsl_qe_udc.c @@ -2539,15 +2539,18 @@ static void qe_udc_release(struct device *dev) } /* Driver probe functions */ +static const struct of_device_id qe_udc_match[]; static int __devinit qe_udc_probe(struct platform_device *ofdev) { + const struct of_device_id *match; struct device_node *np = ofdev->dev.of_node; struct qe_ep *ep; unsigned int ret = 0; unsigned int i; const void *prop; - if (!ofdev->dev.of_match) + match = of_match_device(qe_udc_match, &ofdev->dev); + if (!match) return -EINVAL; prop = of_get_property(np, "mode", NULL); @@ -2561,7 +2564,7 @@ static int __devinit qe_udc_probe(struct platform_device *ofdev) return -ENOMEM; } - udc_controller->soc_type = (unsigned long)ofdev->dev.of_match->data; + udc_controller->soc_type = (unsigned long)match->data; udc_controller->usb_regs = of_iomap(np, 0); if (!udc_controller->usb_regs) { ret = -ENOMEM; diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c index 7e41a95c5ce..627f3a67875 100644 --- a/drivers/usb/host/ehci-omap.c +++ b/drivers/usb/host/ehci-omap.c @@ -40,6 +40,7 @@ #include <linux/slab.h> #include <linux/usb/ulpi.h> #include <plat/usb.h> +#include <linux/regulator/consumer.h> /* EHCI Register Set */ #define EHCI_INSNREG04 (0xA0) @@ -118,6 +119,8 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) struct ehci_hcd *omap_ehci; int ret = -ENODEV; int irq; + int i; + char supply[7]; if (usb_disabled()) return -ENODEV; @@ -158,6 +161,23 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) hcd->rsrc_len = resource_size(res); hcd->regs = regs; + /* get ehci regulator and enable */ + for (i = 0 ; i < OMAP3_HS_USB_PORTS ; i++) { + if (pdata->port_mode[i] != OMAP_EHCI_PORT_MODE_PHY) { + pdata->regulator[i] = NULL; + continue; + } + snprintf(supply, sizeof(supply), "hsusb%d", i); + pdata->regulator[i] = regulator_get(dev, supply); + if (IS_ERR(pdata->regulator[i])) { + pdata->regulator[i] = NULL; + dev_dbg(dev, + "failed to get ehci port%d regulator\n", i); + } else { + regulator_enable(pdata->regulator[i]); + } + } + ret = omap_usbhs_enable(dev); if (ret) { dev_err(dev, "failed to start usbhs with err %d\n", ret); diff --git a/drivers/usb/host/isp1760-hcd.c b/drivers/usb/host/isp1760-hcd.c index 795345ad45e..7b2e69aa2e9 100644 --- a/drivers/usb/host/isp1760-hcd.c +++ b/drivers/usb/host/isp1760-hcd.c @@ -1633,6 +1633,7 @@ static int isp1760_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) ints[i].qh = NULL; ints[i].qtd = NULL; + urb->status = status; isp1760_urb_done(hcd, urb); if (qtd) pe(hcd, qh, qtd); diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index a78f2ebd11b..73f75d26436 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -777,7 +777,7 @@ int xhci_bus_suspend(struct usb_hcd *hcd) if (t1 != t2) xhci_writel(xhci, t2, port_array[port_index]); - if (DEV_HIGHSPEED(t1)) { + if (hcd->speed != HCD_USB3) { /* enable remote wake up for USB 2.0 */ u32 __iomem *addr; u32 tmp; @@ -866,6 +866,21 @@ int xhci_bus_resume(struct usb_hcd *hcd) temp |= PORT_LINK_STROBE | XDEV_U0; xhci_writel(xhci, temp, port_array[port_index]); } + /* wait for the port to enter U0 and report port link + * state change. + */ + spin_unlock_irqrestore(&xhci->lock, flags); + msleep(20); + spin_lock_irqsave(&xhci->lock, flags); + + /* Clear PLC */ + temp = xhci_readl(xhci, port_array[port_index]); + if (temp & PORT_PLC) { + temp = xhci_port_state_to_neutral(temp); + temp |= PORT_PLC; + xhci_writel(xhci, temp, port_array[port_index]); + } + slot_id = xhci_find_slot_id_by_port(hcd, xhci, port_index + 1); if (slot_id) @@ -873,7 +888,7 @@ int xhci_bus_resume(struct usb_hcd *hcd) } else xhci_writel(xhci, temp, port_array[port_index]); - if (DEV_HIGHSPEED(temp)) { + if (hcd->speed != HCD_USB3) { /* disable remote wake up for USB 2.0 */ u32 __iomem *addr; u32 tmp; diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c index 6dfbf9ffd7a..f47c20197c6 100644 --- a/drivers/usb/musb/musb_gadget.c +++ b/drivers/usb/musb/musb_gadget.c @@ -1887,11 +1887,9 @@ int usb_gadget_probe_driver(struct usb_gadget_driver *driver, otg_set_vbus(musb->xceiv, 1); hcd->self.uses_pio_for_control = 1; - - if (musb->xceiv->last_event == USB_EVENT_NONE) - pm_runtime_put(musb->controller); - } + if (musb->xceiv->last_event == USB_EVENT_NONE) + pm_runtime_put(musb->controller); return 0; diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c index 57a27fa954b..e9e60b6e058 100644 --- a/drivers/usb/musb/omap2430.c +++ b/drivers/usb/musb/omap2430.c @@ -270,7 +270,7 @@ static int musb_otg_notifications(struct notifier_block *nb, DBG(4, "VBUS Disconnect\n"); #ifdef CONFIG_USB_GADGET_MUSB_HDRC - if (is_otg_enabled(musb)) + if (is_otg_enabled(musb) || is_peripheral_enabled(musb)) if (musb->gadget_driver) #endif { diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index 2ab29124163..7aa4eea930f 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c @@ -4,7 +4,7 @@ * Author: Michael S. Tsirkin <mst@redhat.com> * * Inspiration, some code, and most witty comments come from - * Documentation/lguest/lguest.c, by Rusty Russell + * Documentation/virtual/lguest/lguest.c, by Rusty Russell * * This work is licensed under the terms of the GNU GPL, version 2. * diff --git a/drivers/video/acornfb.c b/drivers/video/acornfb.c index 82acb8dc4aa..6183a57eb69 100644 --- a/drivers/video/acornfb.c +++ b/drivers/video/acornfb.c @@ -66,7 +66,7 @@ * have. Allow 1% either way on the nominal for TVs. */ #define NR_MONTYPES 6 -static struct fb_monspecs monspecs[NR_MONTYPES] __initdata = { +static struct fb_monspecs monspecs[NR_MONTYPES] __devinitdata = { { /* TV */ .hfmin = 15469, .hfmax = 15781, @@ -873,7 +873,7 @@ static struct fb_ops acornfb_ops = { /* * Everything after here is initialisation!!! */ -static struct fb_videomode modedb[] __initdata = { +static struct fb_videomode modedb[] __devinitdata = { { /* 320x256 @ 50Hz */ NULL, 50, 320, 256, 125000, 92, 62, 35, 19, 38, 2, FB_SYNC_COMP_HIGH_ACT, @@ -925,8 +925,7 @@ static struct fb_videomode modedb[] __initdata = { } }; -static struct fb_videomode __initdata -acornfb_default_mode = { +static struct fb_videomode acornfb_default_mode __devinitdata = { .name = NULL, .refresh = 60, .xres = 640, @@ -942,7 +941,7 @@ acornfb_default_mode = { .vmode = FB_VMODE_NONINTERLACED }; -static void __init acornfb_init_fbinfo(void) +static void __devinit acornfb_init_fbinfo(void) { static int first = 1; @@ -1018,8 +1017,7 @@ static void __init acornfb_init_fbinfo(void) * size can optionally be followed by 'M' or 'K' for * MB or KB respectively. */ -static void __init -acornfb_parse_mon(char *opt) +static void __devinit acornfb_parse_mon(char *opt) { char *p = opt; @@ -1066,8 +1064,7 @@ bad: current_par.montype = -1; } -static void __init -acornfb_parse_montype(char *opt) +static void __devinit acornfb_parse_montype(char *opt) { current_par.montype = -2; @@ -1108,8 +1105,7 @@ acornfb_parse_montype(char *opt) } } -static void __init -acornfb_parse_dram(char *opt) +static void __devinit acornfb_parse_dram(char *opt) { unsigned int size; @@ -1134,15 +1130,14 @@ acornfb_parse_dram(char *opt) static struct options { char *name; void (*parse)(char *opt); -} opt_table[] __initdata = { +} opt_table[] __devinitdata = { { "mon", acornfb_parse_mon }, { "montype", acornfb_parse_montype }, { "dram", acornfb_parse_dram }, { NULL, NULL } }; -int __init -acornfb_setup(char *options) +static int __devinit acornfb_setup(char *options) { struct options *optp; char *opt; @@ -1179,8 +1174,7 @@ acornfb_setup(char *options) * Detect type of monitor connected * For now, we just assume SVGA */ -static int __init -acornfb_detect_monitortype(void) +static int __devinit acornfb_detect_monitortype(void) { return 4; } diff --git a/drivers/video/atafb.c b/drivers/video/atafb.c index 5b2b5ef4edb..64e41f5448c 100644 --- a/drivers/video/atafb.c +++ b/drivers/video/atafb.c @@ -3117,7 +3117,7 @@ int __init atafb_init(void) atafb_ops.fb_setcolreg = &falcon_setcolreg; error = request_irq(IRQ_AUTO_4, falcon_vbl_switcher, IRQ_TYPE_PRIO, - "framebuffer/modeswitch", + "framebuffer:modeswitch", falcon_vbl_switcher); if (error) return error; diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c index e0c2284924b..5aac00eb183 100644 --- a/drivers/video/fbmem.c +++ b/drivers/video/fbmem.c @@ -42,9 +42,34 @@ #define FBPIXMAPSIZE (1024 * 8) +static DEFINE_MUTEX(registration_lock); struct fb_info *registered_fb[FB_MAX] __read_mostly; int num_registered_fb __read_mostly; +static struct fb_info *get_fb_info(unsigned int idx) +{ + struct fb_info *fb_info; + + if (idx >= FB_MAX) + return ERR_PTR(-ENODEV); + + mutex_lock(®istration_lock); + fb_info = registered_fb[idx]; + if (fb_info) + atomic_inc(&fb_info->count); + mutex_unlock(®istration_lock); + + return fb_info; +} + +static void put_fb_info(struct fb_info *fb_info) +{ + if (!atomic_dec_and_test(&fb_info->count)) + return; + if (fb_info->fbops->fb_destroy) + fb_info->fbops->fb_destroy(fb_info); +} + int lock_fb_info(struct fb_info *info) { mutex_lock(&info->lock); @@ -647,6 +672,7 @@ int fb_show_logo(struct fb_info *info, int rotate) { return 0; } static void *fb_seq_start(struct seq_file *m, loff_t *pos) { + mutex_lock(®istration_lock); return (*pos < FB_MAX) ? pos : NULL; } @@ -658,6 +684,7 @@ static void *fb_seq_next(struct seq_file *m, void *v, loff_t *pos) static void fb_seq_stop(struct seq_file *m, void *v) { + mutex_unlock(®istration_lock); } static int fb_seq_show(struct seq_file *m, void *v) @@ -690,13 +717,30 @@ static const struct file_operations fb_proc_fops = { .release = seq_release, }; -static ssize_t -fb_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) +/* + * We hold a reference to the fb_info in file->private_data, + * but if the current registered fb has changed, we don't + * actually want to use it. + * + * So look up the fb_info using the inode minor number, + * and just verify it against the reference we have. + */ +static struct fb_info *file_fb_info(struct file *file) { - unsigned long p = *ppos; struct inode *inode = file->f_path.dentry->d_inode; int fbidx = iminor(inode); struct fb_info *info = registered_fb[fbidx]; + + if (info != file->private_data) + info = NULL; + return info; +} + +static ssize_t +fb_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) +{ + unsigned long p = *ppos; + struct fb_info *info = file_fb_info(file); u8 *buffer, *dst; u8 __iomem *src; int c, cnt = 0, err = 0; @@ -761,9 +805,7 @@ static ssize_t fb_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) { unsigned long p = *ppos; - struct inode *inode = file->f_path.dentry->d_inode; - int fbidx = iminor(inode); - struct fb_info *info = registered_fb[fbidx]; + struct fb_info *info = file_fb_info(file); u8 *buffer, *src; u8 __iomem *dst; int c, cnt = 0, err = 0; @@ -1141,10 +1183,10 @@ static long do_fb_ioctl(struct fb_info *info, unsigned int cmd, static long fb_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { - struct inode *inode = file->f_path.dentry->d_inode; - int fbidx = iminor(inode); - struct fb_info *info = registered_fb[fbidx]; + struct fb_info *info = file_fb_info(file); + if (!info) + return -ENODEV; return do_fb_ioctl(info, cmd, arg); } @@ -1265,12 +1307,13 @@ static int fb_get_fscreeninfo(struct fb_info *info, unsigned int cmd, static long fb_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { - struct inode *inode = file->f_path.dentry->d_inode; - int fbidx = iminor(inode); - struct fb_info *info = registered_fb[fbidx]; - struct fb_ops *fb = info->fbops; + struct fb_info *info = file_fb_info(file); + struct fb_ops *fb; long ret = -ENOIOCTLCMD; + if (!info) + return -ENODEV; + fb = info->fbops; switch(cmd) { case FBIOGET_VSCREENINFO: case FBIOPUT_VSCREENINFO: @@ -1303,16 +1346,18 @@ static long fb_compat_ioctl(struct file *file, unsigned int cmd, static int fb_mmap(struct file *file, struct vm_area_struct * vma) { - int fbidx = iminor(file->f_path.dentry->d_inode); - struct fb_info *info = registered_fb[fbidx]; - struct fb_ops *fb = info->fbops; + struct fb_info *info = file_fb_info(file); + struct fb_ops *fb; unsigned long off; unsigned long start; u32 len; + if (!info) + return -ENODEV; if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) return -EINVAL; off = vma->vm_pgoff << PAGE_SHIFT; + fb = info->fbops; if (!fb) return -ENODEV; mutex_lock(&info->mm_lock); @@ -1361,14 +1406,16 @@ __releases(&info->lock) struct fb_info *info; int res = 0; - if (fbidx >= FB_MAX) - return -ENODEV; - info = registered_fb[fbidx]; - if (!info) + info = get_fb_info(fbidx); + if (!info) { request_module("fb%d", fbidx); - info = registered_fb[fbidx]; - if (!info) - return -ENODEV; + info = get_fb_info(fbidx); + if (!info) + return -ENODEV; + } + if (IS_ERR(info)) + return PTR_ERR(info); + mutex_lock(&info->lock); if (!try_module_get(info->fbops->owner)) { res = -ENODEV; @@ -1386,6 +1433,8 @@ __releases(&info->lock) #endif out: mutex_unlock(&info->lock); + if (res) + put_fb_info(info); return res; } @@ -1401,6 +1450,7 @@ __releases(&info->lock) info->fbops->fb_release(info,1); module_put(info->fbops->owner); mutex_unlock(&info->lock); + put_fb_info(info); return 0; } @@ -1487,8 +1537,10 @@ static bool fb_do_apertures_overlap(struct apertures_struct *gena, return false; } +static int do_unregister_framebuffer(struct fb_info *fb_info); + #define VGA_FB_PHYS 0xA0000 -void remove_conflicting_framebuffers(struct apertures_struct *a, +static void do_remove_conflicting_framebuffers(struct apertures_struct *a, const char *name, bool primary) { int i; @@ -1510,43 +1562,32 @@ void remove_conflicting_framebuffers(struct apertures_struct *a, printk(KERN_INFO "fb: conflicting fb hw usage " "%s vs %s - removing generic driver\n", name, registered_fb[i]->fix.id); - unregister_framebuffer(registered_fb[i]); + do_unregister_framebuffer(registered_fb[i]); } } } -EXPORT_SYMBOL(remove_conflicting_framebuffers); -/** - * register_framebuffer - registers a frame buffer device - * @fb_info: frame buffer info structure - * - * Registers a frame buffer device @fb_info. - * - * Returns negative errno on error, or zero for success. - * - */ - -int -register_framebuffer(struct fb_info *fb_info) +static int do_register_framebuffer(struct fb_info *fb_info) { int i; struct fb_event event; struct fb_videomode mode; - if (num_registered_fb == FB_MAX) - return -ENXIO; - if (fb_check_foreignness(fb_info)) return -ENOSYS; - remove_conflicting_framebuffers(fb_info->apertures, fb_info->fix.id, + do_remove_conflicting_framebuffers(fb_info->apertures, fb_info->fix.id, fb_is_primary_device(fb_info)); + if (num_registered_fb == FB_MAX) + return -ENXIO; + num_registered_fb++; for (i = 0 ; i < FB_MAX; i++) if (!registered_fb[i]) break; fb_info->node = i; + atomic_set(&fb_info->count, 1); mutex_init(&fb_info->lock); mutex_init(&fb_info->mm_lock); @@ -1592,36 +1633,14 @@ register_framebuffer(struct fb_info *fb_info) return 0; } - -/** - * unregister_framebuffer - releases a frame buffer device - * @fb_info: frame buffer info structure - * - * Unregisters a frame buffer device @fb_info. - * - * Returns negative errno on error, or zero for success. - * - * This function will also notify the framebuffer console - * to release the driver. - * - * This is meant to be called within a driver's module_exit() - * function. If this is called outside module_exit(), ensure - * that the driver implements fb_open() and fb_release() to - * check that no processes are using the device. - */ - -int -unregister_framebuffer(struct fb_info *fb_info) +static int do_unregister_framebuffer(struct fb_info *fb_info) { struct fb_event event; int i, ret = 0; i = fb_info->node; - if (!registered_fb[i]) { - ret = -EINVAL; - goto done; - } - + if (i < 0 || i >= FB_MAX || registered_fb[i] != fb_info) + return -EINVAL; if (!lock_fb_info(fb_info)) return -ENODEV; @@ -1629,16 +1648,14 @@ unregister_framebuffer(struct fb_info *fb_info) ret = fb_notifier_call_chain(FB_EVENT_FB_UNBIND, &event); unlock_fb_info(fb_info); - if (ret) { - ret = -EINVAL; - goto done; - } + if (ret) + return -EINVAL; if (fb_info->pixmap.addr && (fb_info->pixmap.flags & FB_PIXMAP_DEFAULT)) kfree(fb_info->pixmap.addr); fb_destroy_modelist(&fb_info->modelist); - registered_fb[i]=NULL; + registered_fb[i] = NULL; num_registered_fb--; fb_cleanup_device(fb_info); device_destroy(fb_class, MKDEV(FB_MAJOR, i)); @@ -1646,9 +1663,65 @@ unregister_framebuffer(struct fb_info *fb_info) fb_notifier_call_chain(FB_EVENT_FB_UNREGISTERED, &event); /* this may free fb info */ - if (fb_info->fbops->fb_destroy) - fb_info->fbops->fb_destroy(fb_info); -done: + put_fb_info(fb_info); + return 0; +} + +void remove_conflicting_framebuffers(struct apertures_struct *a, + const char *name, bool primary) +{ + mutex_lock(®istration_lock); + do_remove_conflicting_framebuffers(a, name, primary); + mutex_unlock(®istration_lock); +} +EXPORT_SYMBOL(remove_conflicting_framebuffers); + +/** + * register_framebuffer - registers a frame buffer device + * @fb_info: frame buffer info structure + * + * Registers a frame buffer device @fb_info. + * + * Returns negative errno on error, or zero for success. + * + */ +int +register_framebuffer(struct fb_info *fb_info) +{ + int ret; + + mutex_lock(®istration_lock); + ret = do_register_framebuffer(fb_info); + mutex_unlock(®istration_lock); + + return ret; +} + +/** + * unregister_framebuffer - releases a frame buffer device + * @fb_info: frame buffer info structure + * + * Unregisters a frame buffer device @fb_info. + * + * Returns negative errno on error, or zero for success. + * + * This function will also notify the framebuffer console + * to release the driver. + * + * This is meant to be called within a driver's module_exit() + * function. If this is called outside module_exit(), ensure + * that the driver implements fb_open() and fb_release() to + * check that no processes are using the device. + */ +int +unregister_framebuffer(struct fb_info *fb_info) +{ + int ret; + + mutex_lock(®istration_lock); + ret = do_unregister_framebuffer(fb_info); + mutex_unlock(®istration_lock); + return ret; } diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig index 1b0f98bc51b..022f9eb0b7b 100644 --- a/drivers/watchdog/Kconfig +++ b/drivers/watchdog/Kconfig @@ -990,6 +990,12 @@ config BCM63XX_WDT To compile this driver as a loadable module, choose M here. The module will be called bcm63xx_wdt. +config LANTIQ_WDT + tristate "Lantiq SoC watchdog" + depends on LANTIQ + help + Hardware driver for the Lantiq SoC Watchdog Timer. + # PARISC Architecture # POWERPC Architecture diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile index 3f8608b922a..ed26f7094e4 100644 --- a/drivers/watchdog/Makefile +++ b/drivers/watchdog/Makefile @@ -123,6 +123,7 @@ obj-$(CONFIG_AR7_WDT) += ar7_wdt.o obj-$(CONFIG_TXX9_WDT) += txx9wdt.o obj-$(CONFIG_OCTEON_WDT) += octeon-wdt.o octeon-wdt-y := octeon-wdt-main.o octeon-wdt-nmi.o +obj-$(CONFIG_LANTIQ_WDT) += lantiq_wdt.o # PARISC Architecture diff --git a/drivers/watchdog/lantiq_wdt.c b/drivers/watchdog/lantiq_wdt.c new file mode 100644 index 00000000000..7d82adac1cb --- /dev/null +++ b/drivers/watchdog/lantiq_wdt.c @@ -0,0 +1,261 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2010 John Crispin <blogic@openwrt.org> + * Based on EP93xx wdt driver + */ + +#include <linux/module.h> +#include <linux/fs.h> +#include <linux/miscdevice.h> +#include <linux/watchdog.h> +#include <linux/platform_device.h> +#include <linux/uaccess.h> +#include <linux/clk.h> +#include <linux/io.h> + +#include <lantiq.h> + +/* Section 3.4 of the datasheet + * The password sequence protects the WDT control register from unintended + * write actions, which might cause malfunction of the WDT. + * + * essentially the following two magic passwords need to be written to allow + * IO access to the WDT core + */ +#define LTQ_WDT_PW1 0x00BE0000 +#define LTQ_WDT_PW2 0x00DC0000 + +#define LTQ_WDT_CR 0x0 /* watchdog control register */ +#define LTQ_WDT_SR 0x8 /* watchdog status register */ + +#define LTQ_WDT_SR_EN (0x1 << 31) /* enable bit */ +#define LTQ_WDT_SR_PWD (0x3 << 26) /* turn on power */ +#define LTQ_WDT_SR_CLKDIV (0x3 << 24) /* turn on clock and set */ + /* divider to 0x40000 */ +#define LTQ_WDT_DIVIDER 0x40000 +#define LTQ_MAX_TIMEOUT ((1 << 16) - 1) /* the reload field is 16 bit */ + +static int nowayout = WATCHDOG_NOWAYOUT; + +static void __iomem *ltq_wdt_membase; +static unsigned long ltq_io_region_clk_rate; + +static unsigned long ltq_wdt_bootstatus; +static unsigned long ltq_wdt_in_use; +static int ltq_wdt_timeout = 30; +static int ltq_wdt_ok_to_close; + +static void +ltq_wdt_enable(void) +{ + ltq_wdt_timeout = ltq_wdt_timeout * + (ltq_io_region_clk_rate / LTQ_WDT_DIVIDER) + 0x1000; + if (ltq_wdt_timeout > LTQ_MAX_TIMEOUT) + ltq_wdt_timeout = LTQ_MAX_TIMEOUT; + + /* write the first password magic */ + ltq_w32(LTQ_WDT_PW1, ltq_wdt_membase + LTQ_WDT_CR); + /* write the second magic plus the configuration and new timeout */ + ltq_w32(LTQ_WDT_SR_EN | LTQ_WDT_SR_PWD | LTQ_WDT_SR_CLKDIV | + LTQ_WDT_PW2 | ltq_wdt_timeout, ltq_wdt_membase + LTQ_WDT_CR); +} + +static void +ltq_wdt_disable(void) +{ + /* write the first password magic */ + ltq_w32(LTQ_WDT_PW1, ltq_wdt_membase + LTQ_WDT_CR); + /* write the second password magic with no config + * this turns the watchdog off + */ + ltq_w32(LTQ_WDT_PW2, ltq_wdt_membase + LTQ_WDT_CR); +} + +static ssize_t +ltq_wdt_write(struct file *file, const char __user *data, + size_t len, loff_t *ppos) +{ + if (len) { + if (!nowayout) { + size_t i; + + ltq_wdt_ok_to_close = 0; + for (i = 0; i != len; i++) { + char c; + + if (get_user(c, data + i)) + return -EFAULT; + if (c == 'V') + ltq_wdt_ok_to_close = 1; + else + ltq_wdt_ok_to_close = 0; + } + } + ltq_wdt_enable(); + } + + return len; +} + +static struct watchdog_info ident = { + .options = WDIOF_MAGICCLOSE | WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | + WDIOF_CARDRESET, + .identity = "ltq_wdt", +}; + +static long +ltq_wdt_ioctl(struct file *file, + unsigned int cmd, unsigned long arg) +{ + int ret = -ENOTTY; + + switch (cmd) { + case WDIOC_GETSUPPORT: + ret = copy_to_user((struct watchdog_info __user *)arg, &ident, + sizeof(ident)) ? -EFAULT : 0; + break; + + case WDIOC_GETBOOTSTATUS: + ret = put_user(ltq_wdt_bootstatus, (int __user *)arg); + break; + + case WDIOC_GETSTATUS: + ret = put_user(0, (int __user *)arg); + break; + + case WDIOC_SETTIMEOUT: + ret = get_user(ltq_wdt_timeout, (int __user *)arg); + if (!ret) + ltq_wdt_enable(); + /* intentional drop through */ + case WDIOC_GETTIMEOUT: + ret = put_user(ltq_wdt_timeout, (int __user *)arg); + break; + + case WDIOC_KEEPALIVE: + ltq_wdt_enable(); + ret = 0; + break; + } + return ret; +} + +static int +ltq_wdt_open(struct inode *inode, struct file *file) +{ + if (test_and_set_bit(0, <q_wdt_in_use)) + return -EBUSY; + ltq_wdt_in_use = 1; + ltq_wdt_enable(); + + return nonseekable_open(inode, file); +} + +static int +ltq_wdt_release(struct inode *inode, struct file *file) +{ + if (ltq_wdt_ok_to_close) + ltq_wdt_disable(); + else + pr_err("ltq_wdt: watchdog closed without warning\n"); + ltq_wdt_ok_to_close = 0; + clear_bit(0, <q_wdt_in_use); + + return 0; +} + +static const struct file_operations ltq_wdt_fops = { + .owner = THIS_MODULE, + .write = ltq_wdt_write, + .unlocked_ioctl = ltq_wdt_ioctl, + .open = ltq_wdt_open, + .release = ltq_wdt_release, + .llseek = no_llseek, +}; + +static struct miscdevice ltq_wdt_miscdev = { + .minor = WATCHDOG_MINOR, + .name = "watchdog", + .fops = <q_wdt_fops, +}; + +static int __init +ltq_wdt_probe(struct platform_device *pdev) +{ + struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + struct clk *clk; + + if (!res) { + dev_err(&pdev->dev, "cannot obtain I/O memory region"); + return -ENOENT; + } + res = devm_request_mem_region(&pdev->dev, res->start, + resource_size(res), dev_name(&pdev->dev)); + if (!res) { + dev_err(&pdev->dev, "cannot request I/O memory region"); + return -EBUSY; + } + ltq_wdt_membase = devm_ioremap_nocache(&pdev->dev, res->start, + resource_size(res)); + if (!ltq_wdt_membase) { + dev_err(&pdev->dev, "cannot remap I/O memory region\n"); + return -ENOMEM; + } + + /* we do not need to enable the clock as it is always running */ + clk = clk_get(&pdev->dev, "io"); + WARN_ON(!clk); + ltq_io_region_clk_rate = clk_get_rate(clk); + clk_put(clk); + + if (ltq_reset_cause() == LTQ_RST_CAUSE_WDTRST) + ltq_wdt_bootstatus = WDIOF_CARDRESET; + + return misc_register(<q_wdt_miscdev); +} + +static int __devexit +ltq_wdt_remove(struct platform_device *pdev) +{ + misc_deregister(<q_wdt_miscdev); + + if (ltq_wdt_membase) + iounmap(ltq_wdt_membase); + + return 0; +} + + +static struct platform_driver ltq_wdt_driver = { + .remove = __devexit_p(ltq_wdt_remove), + .driver = { + .name = "ltq_wdt", + .owner = THIS_MODULE, + }, +}; + +static int __init +init_ltq_wdt(void) +{ + return platform_driver_probe(<q_wdt_driver, ltq_wdt_probe); +} + +static void __exit +exit_ltq_wdt(void) +{ + return platform_driver_unregister(<q_wdt_driver); +} + +module_init(init_ltq_wdt); +module_exit(exit_ltq_wdt); + +module_param(nowayout, int, 0); +MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started"); + +MODULE_AUTHOR("John Crispin <blogic@openwrt.org>"); +MODULE_DESCRIPTION("Lantiq SoC Watchdog"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/mpc8xxx_wdt.c b/drivers/watchdog/mpc8xxx_wdt.c index 528bceb220f..eed5436ffb5 100644 --- a/drivers/watchdog/mpc8xxx_wdt.c +++ b/drivers/watchdog/mpc8xxx_wdt.c @@ -185,17 +185,20 @@ static struct miscdevice mpc8xxx_wdt_miscdev = { .fops = &mpc8xxx_wdt_fops, }; +static const struct of_device_id mpc8xxx_wdt_match[]; static int __devinit mpc8xxx_wdt_probe(struct platform_device *ofdev) { int ret; + const struct of_device_id *match; struct device_node *np = ofdev->dev.of_node; struct mpc8xxx_wdt_type *wdt_type; u32 freq = fsl_get_sys_freq(); bool enabled; - if (!ofdev->dev.of_match) + match = of_match_device(mpc8xxx_wdt_match, &ofdev->dev); + if (!match) return -EINVAL; - wdt_type = ofdev->dev.of_match->data; + wdt_type = match->data; if (!freq || freq == -1) return -EINVAL; diff --git a/drivers/watchdog/mtx-1_wdt.c b/drivers/watchdog/mtx-1_wdt.c index 5ec5ac1f787..1479dc4d612 100644 --- a/drivers/watchdog/mtx-1_wdt.c +++ b/drivers/watchdog/mtx-1_wdt.c @@ -66,6 +66,7 @@ static struct { int default_ticks; unsigned long inuse; unsigned gpio; + int gstate; } mtx1_wdt_device; static void mtx1_wdt_trigger(unsigned long unused) @@ -75,13 +76,13 @@ static void mtx1_wdt_trigger(unsigned long unused) spin_lock(&mtx1_wdt_device.lock); if (mtx1_wdt_device.running) ticks--; - /* - * toggle GPIO2_15 - */ - tmp = au_readl(GPIO2_DIR); - tmp = (tmp & ~(1 << mtx1_wdt_device.gpio)) | - ((~tmp) & (1 << mtx1_wdt_device.gpio)); - au_writel(tmp, GPIO2_DIR); + + /* toggle wdt gpio */ + mtx1_wdt_device.gstate = ~mtx1_wdt_device.gstate; + if (mtx1_wdt_device.gstate) + gpio_direction_output(mtx1_wdt_device.gpio, 1); + else + gpio_direction_input(mtx1_wdt_device.gpio); if (mtx1_wdt_device.queue && ticks) mod_timer(&mtx1_wdt_device.timer, jiffies + MTX1_WDT_INTERVAL); @@ -103,7 +104,8 @@ static void mtx1_wdt_start(void) spin_lock_irqsave(&mtx1_wdt_device.lock, flags); if (!mtx1_wdt_device.queue) { mtx1_wdt_device.queue = 1; - gpio_set_value(mtx1_wdt_device.gpio, 1); + mtx1_wdt_device.gstate = 1; + gpio_direction_output(mtx1_wdt_device.gpio, 1); mod_timer(&mtx1_wdt_device.timer, jiffies + MTX1_WDT_INTERVAL); } mtx1_wdt_device.running++; @@ -117,7 +119,8 @@ static int mtx1_wdt_stop(void) spin_lock_irqsave(&mtx1_wdt_device.lock, flags); if (mtx1_wdt_device.queue) { mtx1_wdt_device.queue = 0; - gpio_set_value(mtx1_wdt_device.gpio, 0); + mtx1_wdt_device.gstate = 0; + gpio_direction_output(mtx1_wdt_device.gpio, 0); } ticks = mtx1_wdt_device.default_ticks; spin_unlock_irqrestore(&mtx1_wdt_device.lock, flags); diff --git a/drivers/xen/Makefile b/drivers/xen/Makefile index f420f1ff7f1..4781f806701 100644 --- a/drivers/xen/Makefile +++ b/drivers/xen/Makefile @@ -4,21 +4,21 @@ obj-y += xenbus/ nostackp := $(call cc-option, -fno-stack-protector) CFLAGS_features.o := $(nostackp) -obj-$(CONFIG_BLOCK) += biomerge.o -obj-$(CONFIG_HOTPLUG_CPU) += cpu_hotplug.o -obj-$(CONFIG_XEN_XENCOMM) += xencomm.o -obj-$(CONFIG_XEN_BALLOON) += xen-balloon.o -obj-$(CONFIG_XEN_DEV_EVTCHN) += xen-evtchn.o -obj-$(CONFIG_XEN_GNTDEV) += xen-gntdev.o +obj-$(CONFIG_BLOCK) += biomerge.o +obj-$(CONFIG_HOTPLUG_CPU) += cpu_hotplug.o +obj-$(CONFIG_XEN_XENCOMM) += xencomm.o +obj-$(CONFIG_XEN_BALLOON) += xen-balloon.o +obj-$(CONFIG_XEN_DEV_EVTCHN) += xen-evtchn.o +obj-$(CONFIG_XEN_GNTDEV) += xen-gntdev.o obj-$(CONFIG_XEN_GRANT_DEV_ALLOC) += xen-gntalloc.o -obj-$(CONFIG_XENFS) += xenfs/ +obj-$(CONFIG_XENFS) += xenfs/ obj-$(CONFIG_XEN_SYS_HYPERVISOR) += sys-hypervisor.o -obj-$(CONFIG_XEN_PLATFORM_PCI) += xen-platform-pci.o -obj-$(CONFIG_SWIOTLB_XEN) += swiotlb-xen.o -obj-$(CONFIG_XEN_DOM0) += pci.o +obj-$(CONFIG_XEN_PLATFORM_PCI) += xen-platform-pci.o +obj-$(CONFIG_SWIOTLB_XEN) += swiotlb-xen.o +obj-$(CONFIG_XEN_DOM0) += pci.o -xen-evtchn-y := evtchn.o +xen-evtchn-y := evtchn.o xen-gntdev-y := gntdev.o xen-gntalloc-y := gntalloc.o -xen-platform-pci-y := platform-pci.o +xen-platform-pci-y := platform-pci.o diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c index 043af8ad6b6..f54290baa3d 100644 --- a/drivers/xen/balloon.c +++ b/drivers/xen/balloon.c @@ -114,7 +114,6 @@ static void __balloon_append(struct page *page) if (PageHighMem(page)) { list_add_tail(&page->lru, &ballooned_pages); balloon_stats.balloon_high++; - dec_totalhigh_pages(); } else { list_add(&page->lru, &ballooned_pages); balloon_stats.balloon_low++; @@ -124,6 +123,8 @@ static void __balloon_append(struct page *page) static void balloon_append(struct page *page) { __balloon_append(page); + if (PageHighMem(page)) + dec_totalhigh_pages(); totalram_pages--; } @@ -193,7 +194,7 @@ static enum bp_state update_schedule(enum bp_state state) return BP_EAGAIN; } -static unsigned long current_target(void) +static long current_credit(void) { unsigned long target = balloon_stats.target_pages; @@ -202,7 +203,7 @@ static unsigned long current_target(void) balloon_stats.balloon_low + balloon_stats.balloon_high); - return target; + return target - balloon_stats.current_pages; } static enum bp_state increase_reservation(unsigned long nr_pages) @@ -246,7 +247,7 @@ static enum bp_state increase_reservation(unsigned long nr_pages) set_phys_to_machine(pfn, frame_list[i]); /* Link back into the page tables if not highmem. */ - if (!xen_hvm_domain() && pfn < max_low_pfn) { + if (xen_pv_domain() && !PageHighMem(page)) { int ret; ret = HYPERVISOR_update_va_mapping( (unsigned long)__va(pfn << PAGE_SHIFT), @@ -293,7 +294,7 @@ static enum bp_state decrease_reservation(unsigned long nr_pages, gfp_t gfp) scrub_page(page); - if (!xen_hvm_domain() && !PageHighMem(page)) { + if (xen_pv_domain() && !PageHighMem(page)) { ret = HYPERVISOR_update_va_mapping( (unsigned long)__va(pfn << PAGE_SHIFT), __pte_ma(0), 0); @@ -337,7 +338,7 @@ static void balloon_process(struct work_struct *work) mutex_lock(&balloon_mutex); do { - credit = current_target() - balloon_stats.current_pages; + credit = current_credit(); if (credit > 0) state = increase_reservation(credit); @@ -420,7 +421,7 @@ void free_xenballooned_pages(int nr_pages, struct page** pages) } /* The balloon may be too large now. Shrink it if needed. */ - if (current_target() != balloon_stats.current_pages) + if (current_credit()) schedule_delayed_work(&balloon_worker, 0); mutex_unlock(&balloon_mutex); @@ -429,7 +430,7 @@ EXPORT_SYMBOL(free_xenballooned_pages); static int __init balloon_init(void) { - unsigned long pfn, nr_pages, extra_pfn_end; + unsigned long pfn, extra_pfn_end; struct page *page; if (!xen_domain()) @@ -437,11 +438,7 @@ static int __init balloon_init(void) pr_info("xen/balloon: Initialising balloon driver.\n"); - if (xen_pv_domain()) - nr_pages = xen_start_info->nr_pages; - else - nr_pages = max_pfn; - balloon_stats.current_pages = min(nr_pages, max_pfn); + balloon_stats.current_pages = xen_pv_domain() ? min(xen_start_info->nr_pages, max_pfn) : max_pfn; balloon_stats.target_pages = balloon_stats.current_pages; balloon_stats.balloon_low = 0; balloon_stats.balloon_high = 0; @@ -466,7 +463,7 @@ static int __init balloon_init(void) pfn < extra_pfn_end; pfn++) { page = pfn_to_page(pfn); - /* totalram_pages doesn't include the boot-time + /* totalram_pages and totalhigh_pages do not include the boot-time balloon extension, so don't subtract from it. */ __balloon_append(page); } diff --git a/drivers/xen/events.c b/drivers/xen/events.c index 33167b43ac7..3ff822b4814 100644 --- a/drivers/xen/events.c +++ b/drivers/xen/events.c @@ -101,6 +101,7 @@ struct irq_info unsigned short gsi; unsigned char vector; unsigned char flags; + uint16_t domid; } pirq; } u; }; @@ -118,6 +119,8 @@ static DEFINE_PER_CPU(unsigned long [NR_EVENT_CHANNELS/BITS_PER_LONG], static struct irq_chip xen_dynamic_chip; static struct irq_chip xen_percpu_chip; static struct irq_chip xen_pirq_chip; +static void enable_dynirq(struct irq_data *data); +static void disable_dynirq(struct irq_data *data); /* Get info for IRQ */ static struct irq_info *info_for_irq(unsigned irq) @@ -184,6 +187,7 @@ static void xen_irq_info_pirq_init(unsigned irq, unsigned short pirq, unsigned short gsi, unsigned short vector, + uint16_t domid, unsigned char flags) { struct irq_info *info = info_for_irq(irq); @@ -193,6 +197,7 @@ static void xen_irq_info_pirq_init(unsigned irq, info->u.pirq.pirq = pirq; info->u.pirq.gsi = gsi; info->u.pirq.vector = vector; + info->u.pirq.domid = domid; info->u.pirq.flags = flags; } @@ -473,16 +478,6 @@ static void xen_free_irq(unsigned irq) irq_free_desc(irq); } -static void pirq_unmask_notify(int irq) -{ - struct physdev_eoi eoi = { .irq = pirq_from_irq(irq) }; - - if (unlikely(pirq_needs_eoi(irq))) { - int rc = HYPERVISOR_physdev_op(PHYSDEVOP_eoi, &eoi); - WARN_ON(rc); - } -} - static void pirq_query_unmask(int irq) { struct physdev_irq_status_query irq_status; @@ -506,6 +501,29 @@ static bool probing_irq(int irq) return desc && desc->action == NULL; } +static void eoi_pirq(struct irq_data *data) +{ + int evtchn = evtchn_from_irq(data->irq); + struct physdev_eoi eoi = { .irq = pirq_from_irq(data->irq) }; + int rc = 0; + + irq_move_irq(data); + + if (VALID_EVTCHN(evtchn)) + clear_evtchn(evtchn); + + if (pirq_needs_eoi(data->irq)) { + rc = HYPERVISOR_physdev_op(PHYSDEVOP_eoi, &eoi); + WARN_ON(rc); + } +} + +static void mask_ack_pirq(struct irq_data *data) +{ + disable_dynirq(data); + eoi_pirq(data); +} + static unsigned int __startup_pirq(unsigned int irq) { struct evtchn_bind_pirq bind_pirq; @@ -539,7 +557,7 @@ static unsigned int __startup_pirq(unsigned int irq) out: unmask_evtchn(evtchn); - pirq_unmask_notify(irq); + eoi_pirq(irq_get_irq_data(irq)); return 0; } @@ -579,18 +597,7 @@ static void enable_pirq(struct irq_data *data) static void disable_pirq(struct irq_data *data) { -} - -static void ack_pirq(struct irq_data *data) -{ - int evtchn = evtchn_from_irq(data->irq); - - irq_move_irq(data); - - if (VALID_EVTCHN(evtchn)) { - mask_evtchn(evtchn); - clear_evtchn(evtchn); - } + disable_dynirq(data); } static int find_irq_by_gsi(unsigned gsi) @@ -639,9 +646,6 @@ int xen_bind_pirq_gsi_to_irq(unsigned gsi, if (irq < 0) goto out; - irq_set_chip_and_handler_name(irq, &xen_pirq_chip, handle_level_irq, - name); - irq_op.irq = irq; irq_op.vector = 0; @@ -655,9 +659,35 @@ int xen_bind_pirq_gsi_to_irq(unsigned gsi, goto out; } - xen_irq_info_pirq_init(irq, 0, pirq, gsi, irq_op.vector, + xen_irq_info_pirq_init(irq, 0, pirq, gsi, irq_op.vector, DOMID_SELF, shareable ? PIRQ_SHAREABLE : 0); + pirq_query_unmask(irq); + /* We try to use the handler with the appropriate semantic for the + * type of interrupt: if the interrupt doesn't need an eoi + * (pirq_needs_eoi returns false), we treat it like an edge + * triggered interrupt so we use handle_edge_irq. + * As a matter of fact this only happens when the corresponding + * physical interrupt is edge triggered or an msi. + * + * On the other hand if the interrupt needs an eoi (pirq_needs_eoi + * returns true) we treat it like a level triggered interrupt so we + * use handle_fasteoi_irq like the native code does for this kind of + * interrupts. + * Depending on the Xen version, pirq_needs_eoi might return true + * not only for level triggered interrupts but for edge triggered + * interrupts too. In any case Xen always honors the eoi mechanism, + * not injecting any more pirqs of the same kind if the first one + * hasn't received an eoi yet. Therefore using the fasteoi handler + * is the right choice either way. + */ + if (pirq_needs_eoi(irq)) + irq_set_chip_and_handler_name(irq, &xen_pirq_chip, + handle_fasteoi_irq, name); + else + irq_set_chip_and_handler_name(irq, &xen_pirq_chip, + handle_edge_irq, name); + out: spin_unlock(&irq_mapping_update_lock); @@ -680,7 +710,8 @@ int xen_allocate_pirq_msi(struct pci_dev *dev, struct msi_desc *msidesc) } int xen_bind_pirq_msi_to_irq(struct pci_dev *dev, struct msi_desc *msidesc, - int pirq, int vector, const char *name) + int pirq, int vector, const char *name, + domid_t domid) { int irq, ret; @@ -690,10 +721,10 @@ int xen_bind_pirq_msi_to_irq(struct pci_dev *dev, struct msi_desc *msidesc, if (irq == -1) goto out; - irq_set_chip_and_handler_name(irq, &xen_pirq_chip, handle_level_irq, - name); + irq_set_chip_and_handler_name(irq, &xen_pirq_chip, handle_edge_irq, + name); - xen_irq_info_pirq_init(irq, 0, pirq, 0, vector, 0); + xen_irq_info_pirq_init(irq, 0, pirq, 0, vector, domid, 0); ret = irq_set_msi_desc(irq, msidesc); if (ret < 0) goto error_irq; @@ -722,9 +753,16 @@ int xen_destroy_irq(int irq) if (xen_initial_domain()) { unmap_irq.pirq = info->u.pirq.pirq; - unmap_irq.domid = DOMID_SELF; + unmap_irq.domid = info->u.pirq.domid; rc = HYPERVISOR_physdev_op(PHYSDEVOP_unmap_pirq, &unmap_irq); - if (rc) { + /* If another domain quits without making the pci_disable_msix + * call, the Xen hypervisor takes care of freeing the PIRQs + * (free_domain_pirqs). + */ + if ((rc == -ESRCH && info->u.pirq.domid != DOMID_SELF)) + printk(KERN_INFO "domain %d does not have %d anymore\n", + info->u.pirq.domid, info->u.pirq.pirq); + else if (rc) { printk(KERN_WARNING "unmap irq failed %d\n", rc); goto out; } @@ -759,6 +797,12 @@ out: return irq; } + +int xen_pirq_from_irq(unsigned irq) +{ + return pirq_from_irq(irq); +} +EXPORT_SYMBOL_GPL(xen_pirq_from_irq); int bind_evtchn_to_irq(unsigned int evtchn) { int irq; @@ -773,7 +817,7 @@ int bind_evtchn_to_irq(unsigned int evtchn) goto out; irq_set_chip_and_handler_name(irq, &xen_dynamic_chip, - handle_fasteoi_irq, "event"); + handle_edge_irq, "event"); xen_irq_info_evtchn_init(irq, evtchn); } @@ -1179,9 +1223,6 @@ static void __xen_evtchn_do_upcall(void) port = (word_idx * BITS_PER_LONG) + bit_idx; irq = evtchn_to_irq[port]; - mask_evtchn(port); - clear_evtchn(port); - if (irq != -1) { desc = irq_to_desc(irq); if (desc) @@ -1337,10 +1378,16 @@ static void ack_dynirq(struct irq_data *data) { int evtchn = evtchn_from_irq(data->irq); - irq_move_masked_irq(data); + irq_move_irq(data); if (VALID_EVTCHN(evtchn)) - unmask_evtchn(evtchn); + clear_evtchn(evtchn); +} + +static void mask_ack_dynirq(struct irq_data *data) +{ + disable_dynirq(data); + ack_dynirq(data); } static int retrigger_dynirq(struct irq_data *data) @@ -1502,6 +1549,18 @@ void xen_poll_irq(int irq) xen_poll_irq_timeout(irq, 0 /* no timeout */); } +/* Check whether the IRQ line is shared with other guests. */ +int xen_test_irq_shared(int irq) +{ + struct irq_info *info = info_for_irq(irq); + struct physdev_irq_status_query irq_status = { .irq = info->u.pirq.pirq }; + + if (HYPERVISOR_physdev_op(PHYSDEVOP_irq_status_query, &irq_status)) + return 0; + return !(irq_status.flags & XENIRQSTAT_shared); +} +EXPORT_SYMBOL_GPL(xen_test_irq_shared); + void xen_irq_resume(void) { unsigned int cpu, evtchn; @@ -1535,7 +1594,9 @@ static struct irq_chip xen_dynamic_chip __read_mostly = { .irq_mask = disable_dynirq, .irq_unmask = enable_dynirq, - .irq_eoi = ack_dynirq, + .irq_ack = ack_dynirq, + .irq_mask_ack = mask_ack_dynirq, + .irq_set_affinity = set_affinity_irq, .irq_retrigger = retrigger_dynirq, }; @@ -1545,14 +1606,15 @@ static struct irq_chip xen_pirq_chip __read_mostly = { .irq_startup = startup_pirq, .irq_shutdown = shutdown_pirq, - .irq_enable = enable_pirq, - .irq_unmask = enable_pirq, - .irq_disable = disable_pirq, - .irq_mask = disable_pirq, - .irq_ack = ack_pirq, + .irq_mask = disable_dynirq, + .irq_unmask = enable_dynirq, + + .irq_ack = eoi_pirq, + .irq_eoi = eoi_pirq, + .irq_mask_ack = mask_ack_pirq, .irq_set_affinity = set_affinity_irq, diff --git a/drivers/xen/gntalloc.c b/drivers/xen/gntalloc.c index a7ffdfe19fc..f6832f46aea 100644 --- a/drivers/xen/gntalloc.c +++ b/drivers/xen/gntalloc.c @@ -427,6 +427,17 @@ static long gntalloc_ioctl(struct file *filp, unsigned int cmd, return 0; } +static void gntalloc_vma_open(struct vm_area_struct *vma) +{ + struct gntalloc_gref *gref = vma->vm_private_data; + if (!gref) + return; + + spin_lock(&gref_lock); + gref->users++; + spin_unlock(&gref_lock); +} + static void gntalloc_vma_close(struct vm_area_struct *vma) { struct gntalloc_gref *gref = vma->vm_private_data; @@ -441,6 +452,7 @@ static void gntalloc_vma_close(struct vm_area_struct *vma) } static struct vm_operations_struct gntalloc_vmops = { + .open = gntalloc_vma_open, .close = gntalloc_vma_close, }; @@ -471,8 +483,6 @@ static int gntalloc_mmap(struct file *filp, struct vm_area_struct *vma) vma->vm_private_data = gref; vma->vm_flags |= VM_RESERVED; - vma->vm_flags |= VM_DONTCOPY; - vma->vm_flags |= VM_PFNMAP | VM_PFN_AT_MMAP; vma->vm_ops = &gntalloc_vmops; diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c index b0f9e8fb005..f914b26cf0c 100644 --- a/drivers/xen/gntdev.c +++ b/drivers/xen/gntdev.c @@ -330,17 +330,26 @@ static int unmap_grant_pages(struct grant_map *map, int offset, int pages) /* ------------------------------------------------------------------ */ +static void gntdev_vma_open(struct vm_area_struct *vma) +{ + struct grant_map *map = vma->vm_private_data; + + pr_debug("gntdev_vma_open %p\n", vma); + atomic_inc(&map->users); +} + static void gntdev_vma_close(struct vm_area_struct *vma) { struct grant_map *map = vma->vm_private_data; - pr_debug("close %p\n", vma); + pr_debug("gntdev_vma_close %p\n", vma); map->vma = NULL; vma->vm_private_data = NULL; gntdev_put_map(map); } static struct vm_operations_struct gntdev_vmops = { + .open = gntdev_vma_open, .close = gntdev_vma_close, }; @@ -652,7 +661,10 @@ static int gntdev_mmap(struct file *flip, struct vm_area_struct *vma) vma->vm_ops = &gntdev_vmops; - vma->vm_flags |= VM_RESERVED|VM_DONTCOPY|VM_DONTEXPAND|VM_PFNMAP; + vma->vm_flags |= VM_RESERVED|VM_DONTEXPAND; + + if (use_ptemod) + vma->vm_flags |= VM_DONTCOPY|VM_PFNMAP; vma->vm_private_data = map; diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c index 3745a318def..fd725cde6ad 100644 --- a/drivers/xen/grant-table.c +++ b/drivers/xen/grant-table.c @@ -466,13 +466,30 @@ int gnttab_map_refs(struct gnttab_map_grant_ref *map_ops, if (map_ops[i].status) continue; - /* m2p override only supported for GNTMAP_contains_pte mappings */ - if (!(map_ops[i].flags & GNTMAP_contains_pte)) - continue; - pte = (pte_t *) (mfn_to_virt(PFN_DOWN(map_ops[i].host_addr)) + + if (map_ops[i].flags & GNTMAP_contains_pte) { + pte = (pte_t *) (mfn_to_virt(PFN_DOWN(map_ops[i].host_addr)) + (map_ops[i].host_addr & ~PAGE_MASK)); - mfn = pte_mfn(*pte); - ret = m2p_add_override(mfn, pages[i]); + mfn = pte_mfn(*pte); + } else { + /* If you really wanted to do this: + * mfn = PFN_DOWN(map_ops[i].dev_bus_addr); + * + * The reason we do not implement it is b/c on the + * unmap path (gnttab_unmap_refs) we have no means of + * checking whether the page is !GNTMAP_contains_pte. + * + * That is without some extra data-structure to carry + * the struct page, bool clear_pte, and list_head next + * tuples and deal with allocation/delallocation, etc. + * + * The users of this API set the GNTMAP_contains_pte + * flag so lets just return not supported until it + * becomes neccessary to implement. + */ + return -EOPNOTSUPP; + } + ret = m2p_add_override(mfn, pages[i], + map_ops[i].flags & GNTMAP_contains_pte); if (ret) return ret; } @@ -494,7 +511,7 @@ int gnttab_unmap_refs(struct gnttab_unmap_grant_ref *unmap_ops, return ret; for (i = 0; i < count; i++) { - ret = m2p_remove_override(pages[i]); + ret = m2p_remove_override(pages[i], true /* clear the PTE */); if (ret) return ret; } diff --git a/drivers/xen/manage.c b/drivers/xen/manage.c index a2eee574784..0b5366b5be2 100644 --- a/drivers/xen/manage.c +++ b/drivers/xen/manage.c @@ -70,12 +70,7 @@ static int xen_suspend(void *data) BUG_ON(!irqs_disabled()); - err = sysdev_suspend(PMSG_FREEZE); - if (!err) { - err = syscore_suspend(); - if (err) - sysdev_resume(); - } + err = syscore_suspend(); if (err) { printk(KERN_ERR "xen_suspend: system core suspend failed: %d\n", err); @@ -102,7 +97,6 @@ static int xen_suspend(void *data) } syscore_resume(); - sysdev_resume(); return 0; } diff --git a/drivers/xen/sys-hypervisor.c b/drivers/xen/sys-hypervisor.c index 60f1827a32c..1e0fe01eb67 100644 --- a/drivers/xen/sys-hypervisor.c +++ b/drivers/xen/sys-hypervisor.c @@ -215,7 +215,7 @@ static struct attribute_group xen_compilation_group = { .attrs = xen_compile_attrs, }; -int __init static xen_compilation_init(void) +static int __init xen_compilation_init(void) { return sysfs_create_group(hypervisor_kobj, &xen_compilation_group); } diff --git a/fs/block_dev.c b/fs/block_dev.c index 5147bdd3b8e..257b00e9842 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -1102,6 +1102,7 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part) if (!bdev->bd_part) goto out_clear; + ret = 0; if (disk->fops->open) { ret = disk->fops->open(bdev, mode); if (ret == -ERESTARTSYS) { @@ -1118,9 +1119,18 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part) put_disk(disk); goto restart; } - if (ret) - goto out_clear; } + /* + * If the device is invalidated, rescan partition + * if open succeeded or failed with -ENOMEDIUM. + * The latter is necessary to prevent ghost + * partitions on a removed medium. + */ + if (bdev->bd_invalidated && (!ret || ret == -ENOMEDIUM)) + rescan_partitions(disk, bdev); + if (ret) + goto out_clear; + if (!bdev->bd_openers) { bd_set_size(bdev,(loff_t)get_capacity(disk)<<9); bdi = blk_get_backing_dev_info(bdev); @@ -1128,8 +1138,6 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part) bdi = &default_backing_dev_info; bdev_inode_switch_bdi(bdev->bd_inode, bdi); } - if (bdev->bd_invalidated) - rescan_partitions(disk, bdev); } else { struct block_device *whole; whole = bdget_disk(disk, 0); @@ -1153,13 +1161,14 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part) } } else { if (bdev->bd_contains == bdev) { - if (bdev->bd_disk->fops->open) { + ret = 0; + if (bdev->bd_disk->fops->open) ret = bdev->bd_disk->fops->open(bdev, mode); - if (ret) - goto out_unlock_bdev; - } - if (bdev->bd_invalidated) + /* the same as first opener case, read comment there */ + if (bdev->bd_invalidated && (!ret || ret == -ENOMEDIUM)) rescan_partitions(bdev->bd_disk, bdev); + if (ret) + goto out_unlock_bdev; } /* only one opener holds refs to the module and disk */ module_put(disk->fops->owner); diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c index 5d505aaa72f..44ea5b92e1b 100644 --- a/fs/btrfs/acl.c +++ b/fs/btrfs/acl.c @@ -178,12 +178,13 @@ static int btrfs_xattr_acl_set(struct dentry *dentry, const char *name, if (value) { acl = posix_acl_from_xattr(value, size); + if (IS_ERR(acl)) + return PTR_ERR(acl); + if (acl) { ret = posix_acl_valid(acl); if (ret) goto out; - } else if (IS_ERR(acl)) { - return PTR_ERR(acl); } } diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index cd52f7f556e..9ee6bd55e16 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -8856,23 +8856,38 @@ out: int btrfs_init_space_info(struct btrfs_fs_info *fs_info) { struct btrfs_space_info *space_info; + struct btrfs_super_block *disk_super; + u64 features; + u64 flags; + int mixed = 0; int ret; - ret = update_space_info(fs_info, BTRFS_BLOCK_GROUP_SYSTEM, 0, 0, - &space_info); - if (ret) - return ret; + disk_super = &fs_info->super_copy; + if (!btrfs_super_root(disk_super)) + return 1; - ret = update_space_info(fs_info, BTRFS_BLOCK_GROUP_METADATA, 0, 0, - &space_info); - if (ret) - return ret; + features = btrfs_super_incompat_flags(disk_super); + if (features & BTRFS_FEATURE_INCOMPAT_MIXED_GROUPS) + mixed = 1; - ret = update_space_info(fs_info, BTRFS_BLOCK_GROUP_DATA, 0, 0, - &space_info); + flags = BTRFS_BLOCK_GROUP_SYSTEM; + ret = update_space_info(fs_info, flags, 0, 0, &space_info); if (ret) - return ret; + goto out; + if (mixed) { + flags = BTRFS_BLOCK_GROUP_METADATA | BTRFS_BLOCK_GROUP_DATA; + ret = update_space_info(fs_info, flags, 0, 0, &space_info); + } else { + flags = BTRFS_BLOCK_GROUP_METADATA; + ret = update_space_info(fs_info, flags, 0, 0, &space_info); + if (ret) + goto out; + + flags = BTRFS_BLOCK_GROUP_DATA; + ret = update_space_info(fs_info, flags, 0, 0, &space_info); + } +out: return ret; } diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index ffb48d6c543..2616f7ed479 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -81,6 +81,13 @@ static unsigned int btrfs_flags_to_ioctl(unsigned int flags) iflags |= FS_NOATIME_FL; if (flags & BTRFS_INODE_DIRSYNC) iflags |= FS_DIRSYNC_FL; + if (flags & BTRFS_INODE_NODATACOW) + iflags |= FS_NOCOW_FL; + + if ((flags & BTRFS_INODE_COMPRESS) && !(flags & BTRFS_INODE_NOCOMPRESS)) + iflags |= FS_COMPR_FL; + else if (flags & BTRFS_INODE_NOCOMPRESS) + iflags |= FS_NOCOMP_FL; return iflags; } @@ -144,16 +151,13 @@ static int check_flags(unsigned int flags) if (flags & ~(FS_IMMUTABLE_FL | FS_APPEND_FL | \ FS_NOATIME_FL | FS_NODUMP_FL | \ FS_SYNC_FL | FS_DIRSYNC_FL | \ - FS_NOCOMP_FL | FS_COMPR_FL | \ - FS_NOCOW_FL | FS_COW_FL)) + FS_NOCOMP_FL | FS_COMPR_FL | + FS_NOCOW_FL)) return -EOPNOTSUPP; if ((flags & FS_NOCOMP_FL) && (flags & FS_COMPR_FL)) return -EINVAL; - if ((flags & FS_NOCOW_FL) && (flags & FS_COW_FL)) - return -EINVAL; - return 0; } @@ -218,6 +222,10 @@ static int btrfs_ioctl_setflags(struct file *file, void __user *arg) ip->flags |= BTRFS_INODE_DIRSYNC; else ip->flags &= ~BTRFS_INODE_DIRSYNC; + if (flags & FS_NOCOW_FL) + ip->flags |= BTRFS_INODE_NODATACOW; + else + ip->flags &= ~BTRFS_INODE_NODATACOW; /* * The COMPRESS flag can only be changed by users, while the NOCOMPRESS @@ -230,11 +238,9 @@ static int btrfs_ioctl_setflags(struct file *file, void __user *arg) } else if (flags & FS_COMPR_FL) { ip->flags |= BTRFS_INODE_COMPRESS; ip->flags &= ~BTRFS_INODE_NOCOMPRESS; + } else { + ip->flags &= ~(BTRFS_INODE_COMPRESS | BTRFS_INODE_NOCOMPRESS); } - if (flags & FS_NOCOW_FL) - ip->flags |= BTRFS_INODE_NODATACOW; - else if (flags & FS_COW_FL) - ip->flags &= ~BTRFS_INODE_NODATACOW; trans = btrfs_join_transaction(root, 1); BUG_ON(IS_ERR(trans)); diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c index e159c529fd2..38b8ab55492 100644 --- a/fs/ceph/addr.c +++ b/fs/ceph/addr.c @@ -775,6 +775,13 @@ get_more_pages: ci->i_truncate_seq, ci->i_truncate_size, &inode->i_mtime, true, 1, 0); + + if (!req) { + rc = -ENOMEM; + unlock_page(page); + break; + } + max_pages = req->r_num_pages; alloc_page_vec(fsc, req); diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c index 5323c330bbf..2a5404c1c42 100644 --- a/fs/ceph/caps.c +++ b/fs/ceph/caps.c @@ -819,7 +819,7 @@ int __ceph_caps_used(struct ceph_inode_info *ci) used |= CEPH_CAP_FILE_CACHE; if (ci->i_wr_ref) used |= CEPH_CAP_FILE_WR; - if (ci->i_wrbuffer_ref) + if (ci->i_wb_ref || ci->i_wrbuffer_ref) used |= CEPH_CAP_FILE_BUFFER; return used; } @@ -1331,10 +1331,11 @@ static void ceph_flush_snaps(struct ceph_inode_info *ci) } /* - * Mark caps dirty. If inode is newly dirty, add to the global dirty - * list. + * Mark caps dirty. If inode is newly dirty, return the dirty flags. + * Caller is then responsible for calling __mark_inode_dirty with the + * returned flags value. */ -void __ceph_mark_dirty_caps(struct ceph_inode_info *ci, int mask) +int __ceph_mark_dirty_caps(struct ceph_inode_info *ci, int mask) { struct ceph_mds_client *mdsc = ceph_sb_to_client(ci->vfs_inode.i_sb)->mdsc; @@ -1357,7 +1358,7 @@ void __ceph_mark_dirty_caps(struct ceph_inode_info *ci, int mask) list_add(&ci->i_dirty_item, &mdsc->cap_dirty); spin_unlock(&mdsc->cap_dirty_lock); if (ci->i_flushing_caps == 0) { - igrab(inode); + ihold(inode); dirty |= I_DIRTY_SYNC; } } @@ -1365,9 +1366,8 @@ void __ceph_mark_dirty_caps(struct ceph_inode_info *ci, int mask) if (((was | ci->i_flushing_caps) & CEPH_CAP_FILE_BUFFER) && (mask & CEPH_CAP_FILE_BUFFER)) dirty |= I_DIRTY_DATASYNC; - if (dirty) - __mark_inode_dirty(inode, dirty); __cap_delay_requeue(mdsc, ci); + return dirty; } /* @@ -1990,11 +1990,11 @@ static void __take_cap_refs(struct ceph_inode_info *ci, int got) if (got & CEPH_CAP_FILE_WR) ci->i_wr_ref++; if (got & CEPH_CAP_FILE_BUFFER) { - if (ci->i_wrbuffer_ref == 0) - igrab(&ci->vfs_inode); - ci->i_wrbuffer_ref++; - dout("__take_cap_refs %p wrbuffer %d -> %d (?)\n", - &ci->vfs_inode, ci->i_wrbuffer_ref-1, ci->i_wrbuffer_ref); + if (ci->i_wb_ref == 0) + ihold(&ci->vfs_inode); + ci->i_wb_ref++; + dout("__take_cap_refs %p wb %d -> %d (?)\n", + &ci->vfs_inode, ci->i_wb_ref-1, ci->i_wb_ref); } } @@ -2169,12 +2169,12 @@ void ceph_put_cap_refs(struct ceph_inode_info *ci, int had) if (--ci->i_rdcache_ref == 0) last++; if (had & CEPH_CAP_FILE_BUFFER) { - if (--ci->i_wrbuffer_ref == 0) { + if (--ci->i_wb_ref == 0) { last++; put++; } - dout("put_cap_refs %p wrbuffer %d -> %d (?)\n", - inode, ci->i_wrbuffer_ref+1, ci->i_wrbuffer_ref); + dout("put_cap_refs %p wb %d -> %d (?)\n", + inode, ci->i_wb_ref+1, ci->i_wb_ref); } if (had & CEPH_CAP_FILE_WR) if (--ci->i_wr_ref == 0) { diff --git a/fs/ceph/file.c b/fs/ceph/file.c index 159b512d5a2..203252d88d9 100644 --- a/fs/ceph/file.c +++ b/fs/ceph/file.c @@ -734,9 +734,12 @@ retry_snap: } } if (ret >= 0) { + int dirty; spin_lock(&inode->i_lock); - __ceph_mark_dirty_caps(ci, CEPH_CAP_FILE_WR); + dirty = __ceph_mark_dirty_caps(ci, CEPH_CAP_FILE_WR); spin_unlock(&inode->i_lock); + if (dirty) + __mark_inode_dirty(inode, dirty); } out: diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c index b54c97da1c4..70b6a4839c3 100644 --- a/fs/ceph/inode.c +++ b/fs/ceph/inode.c @@ -355,6 +355,7 @@ struct inode *ceph_alloc_inode(struct super_block *sb) ci->i_rd_ref = 0; ci->i_rdcache_ref = 0; ci->i_wr_ref = 0; + ci->i_wb_ref = 0; ci->i_wrbuffer_ref = 0; ci->i_wrbuffer_ref_head = 0; ci->i_shared_gen = 0; @@ -1567,6 +1568,7 @@ int ceph_setattr(struct dentry *dentry, struct iattr *attr) int release = 0, dirtied = 0; int mask = 0; int err = 0; + int inode_dirty_flags = 0; if (ceph_snap(inode) != CEPH_NOSNAP) return -EROFS; @@ -1725,13 +1727,16 @@ int ceph_setattr(struct dentry *dentry, struct iattr *attr) dout("setattr %p ATTR_FILE ... hrm!\n", inode); if (dirtied) { - __ceph_mark_dirty_caps(ci, dirtied); + inode_dirty_flags = __ceph_mark_dirty_caps(ci, dirtied); inode->i_ctime = CURRENT_TIME; } release &= issued; spin_unlock(&inode->i_lock); + if (inode_dirty_flags) + __mark_inode_dirty(inode, inode_dirty_flags); + if (mask) { req->r_inode = igrab(inode); req->r_inode_drop = release; diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c index f60b07b0feb..d0fae4ce9ba 100644 --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -3304,8 +3304,8 @@ static void con_put(struct ceph_connection *con) { struct ceph_mds_session *s = con->private; + dout("mdsc con_put %p (%d)\n", s, atomic_read(&s->s_ref) - 1); ceph_put_mds_session(s); - dout("mdsc con_put %p (%d)\n", s, atomic_read(&s->s_ref)); } /* diff --git a/fs/ceph/snap.c b/fs/ceph/snap.c index e86ec1155f8..24067d68a55 100644 --- a/fs/ceph/snap.c +++ b/fs/ceph/snap.c @@ -206,7 +206,7 @@ void ceph_put_snap_realm(struct ceph_mds_client *mdsc, up_write(&mdsc->snap_rwsem); } else { spin_lock(&mdsc->snap_empty_lock); - list_add(&mdsc->snap_empty, &realm->empty_item); + list_add(&realm->empty_item, &mdsc->snap_empty); spin_unlock(&mdsc->snap_empty_lock); } } diff --git a/fs/ceph/super.h b/fs/ceph/super.h index 619fe719968..f5cabefa98d 100644 --- a/fs/ceph/super.h +++ b/fs/ceph/super.h @@ -293,7 +293,7 @@ struct ceph_inode_info { /* held references to caps */ int i_pin_ref; - int i_rd_ref, i_rdcache_ref, i_wr_ref; + int i_rd_ref, i_rdcache_ref, i_wr_ref, i_wb_ref; int i_wrbuffer_ref, i_wrbuffer_ref_head; u32 i_shared_gen; /* increment each time we get FILE_SHARED */ u32 i_rdcache_gen; /* incremented each time we get FILE_CACHE. */ @@ -506,7 +506,7 @@ static inline int __ceph_caps_dirty(struct ceph_inode_info *ci) { return ci->i_dirty_caps | ci->i_flushing_caps; } -extern void __ceph_mark_dirty_caps(struct ceph_inode_info *ci, int mask); +extern int __ceph_mark_dirty_caps(struct ceph_inode_info *ci, int mask); extern int ceph_caps_revoking(struct ceph_inode_info *ci, int mask); extern int __ceph_caps_used(struct ceph_inode_info *ci); diff --git a/fs/ceph/xattr.c b/fs/ceph/xattr.c index 8c9eba6ef9d..f2b62869618 100644 --- a/fs/ceph/xattr.c +++ b/fs/ceph/xattr.c @@ -703,6 +703,7 @@ int ceph_setxattr(struct dentry *dentry, const char *name, struct ceph_inode_xattr *xattr = NULL; int issued; int required_blob_size; + int dirty; if (ceph_snap(inode) != CEPH_NOSNAP) return -EROFS; @@ -763,11 +764,12 @@ retry: dout("setxattr %p issued %s\n", inode, ceph_cap_string(issued)); err = __set_xattr(ci, newname, name_len, newval, val_len, 1, 1, 1, &xattr); - __ceph_mark_dirty_caps(ci, CEPH_CAP_XATTR_EXCL); + dirty = __ceph_mark_dirty_caps(ci, CEPH_CAP_XATTR_EXCL); ci->i_xattrs.dirty = true; inode->i_ctime = CURRENT_TIME; spin_unlock(&inode->i_lock); - + if (dirty) + __mark_inode_dirty(inode, dirty); return err; do_sync: @@ -810,6 +812,7 @@ int ceph_removexattr(struct dentry *dentry, const char *name) struct ceph_vxattr_cb *vxattrs = ceph_inode_vxattrs(inode); int issued; int err; + int dirty; if (ceph_snap(inode) != CEPH_NOSNAP) return -EROFS; @@ -833,12 +836,13 @@ int ceph_removexattr(struct dentry *dentry, const char *name) goto do_sync; err = __remove_xattr_by_name(ceph_inode(inode), name); - __ceph_mark_dirty_caps(ci, CEPH_CAP_XATTR_EXCL); + dirty = __ceph_mark_dirty_caps(ci, CEPH_CAP_XATTR_EXCL); ci->i_xattrs.dirty = true; inode->i_ctime = CURRENT_TIME; spin_unlock(&inode->i_lock); - + if (dirty) + __mark_inode_dirty(inode, dirty); return err; do_sync: spin_unlock(&inode->i_lock); diff --git a/fs/cifs/cifs_unicode.c b/fs/cifs/cifs_unicode.c index 23d43cde430..1b2e180b018 100644 --- a/fs/cifs/cifs_unicode.c +++ b/fs/cifs/cifs_unicode.c @@ -277,6 +277,7 @@ cifsConvertToUCS(__le16 *target, const char *source, int srclen, for (i = 0, j = 0; i < srclen; j++) { src_char = source[i]; + charlen = 1; switch (src_char) { case 0: put_unaligned(0, &target[j]); @@ -316,16 +317,13 @@ cifsConvertToUCS(__le16 *target, const char *source, int srclen, dst_char = cpu_to_le16(0x003f); charlen = 1; } - /* - * character may take more than one byte in the source - * string, but will take exactly two bytes in the - * target string - */ - i += charlen; - continue; } + /* + * character may take more than one byte in the source string, + * but will take exactly two bytes in the target string + */ + i += charlen; put_unaligned(dst_char, &target[j]); - i++; /* move to next char in source string */ } ctoUCS_out: diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 4bc862a80ef..277262a8e82 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -274,7 +274,8 @@ static int coalesce_t2(struct smb_hdr *psecond, struct smb_hdr *pTargetSMB) char *data_area_of_target; char *data_area_of_buf2; int remaining; - __u16 byte_count, total_data_size, total_in_buf, total_in_buf2; + unsigned int byte_count, total_in_buf; + __u16 total_data_size, total_in_buf2; total_data_size = get_unaligned_le16(&pSMBt->t2_rsp.TotalDataCount); @@ -287,7 +288,7 @@ static int coalesce_t2(struct smb_hdr *psecond, struct smb_hdr *pTargetSMB) remaining = total_data_size - total_in_buf; if (remaining < 0) - return -EINVAL; + return -EPROTO; if (remaining == 0) /* nothing to do, ignore */ return 0; @@ -308,20 +309,29 @@ static int coalesce_t2(struct smb_hdr *psecond, struct smb_hdr *pTargetSMB) data_area_of_target += total_in_buf; /* copy second buffer into end of first buffer */ - memcpy(data_area_of_target, data_area_of_buf2, total_in_buf2); total_in_buf += total_in_buf2; + /* is the result too big for the field? */ + if (total_in_buf > USHRT_MAX) + return -EPROTO; put_unaligned_le16(total_in_buf, &pSMBt->t2_rsp.DataCount); + + /* fix up the BCC */ byte_count = get_bcc_le(pTargetSMB); byte_count += total_in_buf2; + /* is the result too big for the field? */ + if (byte_count > USHRT_MAX) + return -EPROTO; put_bcc_le(byte_count, pTargetSMB); byte_count = pTargetSMB->smb_buf_length; byte_count += total_in_buf2; - - /* BB also add check that we are not beyond maximum buffer size */ - + /* don't allow buffer to overflow */ + if (byte_count > CIFSMaxBufSize) + return -ENOBUFS; pTargetSMB->smb_buf_length = byte_count; + memcpy(data_area_of_target, data_area_of_buf2, total_in_buf2); + if (remaining == total_in_buf2) { cFYI(1, "found the last secondary response"); return 0; /* we are done */ @@ -607,59 +617,63 @@ incomplete_rcv: list_for_each_safe(tmp, tmp2, &server->pending_mid_q) { mid_entry = list_entry(tmp, struct mid_q_entry, qhead); - if ((mid_entry->mid == smb_buffer->Mid) && - (mid_entry->midState == MID_REQUEST_SUBMITTED) && - (mid_entry->command == smb_buffer->Command)) { - if (length == 0 && - check2ndT2(smb_buffer, server->maxBuf) > 0) { - /* We have a multipart transact2 resp */ - isMultiRsp = true; - if (mid_entry->resp_buf) { - /* merge response - fix up 1st*/ - if (coalesce_t2(smb_buffer, - mid_entry->resp_buf)) { - mid_entry->multiRsp = - true; - break; - } else { - /* all parts received */ - mid_entry->multiEnd = - true; - goto multi_t2_fnd; - } + if (mid_entry->mid != smb_buffer->Mid || + mid_entry->midState != MID_REQUEST_SUBMITTED || + mid_entry->command != smb_buffer->Command) { + mid_entry = NULL; + continue; + } + + if (length == 0 && + check2ndT2(smb_buffer, server->maxBuf) > 0) { + /* We have a multipart transact2 resp */ + isMultiRsp = true; + if (mid_entry->resp_buf) { + /* merge response - fix up 1st*/ + length = coalesce_t2(smb_buffer, + mid_entry->resp_buf); + if (length > 0) { + length = 0; + mid_entry->multiRsp = true; + break; } else { - if (!isLargeBuf) { - cERROR(1, "1st trans2 resp needs bigbuf"); - /* BB maybe we can fix this up, switch - to already allocated large buffer? */ - } else { - /* Have first buffer */ - mid_entry->resp_buf = - smb_buffer; - mid_entry->largeBuf = - true; - bigbuf = NULL; - } + /* all parts received or + * packet is malformed + */ + mid_entry->multiEnd = true; + goto multi_t2_fnd; + } + } else { + if (!isLargeBuf) { + /* + * FIXME: switch to already + * allocated largebuf? + */ + cERROR(1, "1st trans2 resp " + "needs bigbuf"); + } else { + /* Have first buffer */ + mid_entry->resp_buf = + smb_buffer; + mid_entry->largeBuf = true; + bigbuf = NULL; } - break; } - mid_entry->resp_buf = smb_buffer; - mid_entry->largeBuf = isLargeBuf; + break; + } + mid_entry->resp_buf = smb_buffer; + mid_entry->largeBuf = isLargeBuf; multi_t2_fnd: - if (length == 0) - mid_entry->midState = - MID_RESPONSE_RECEIVED; - else - mid_entry->midState = - MID_RESPONSE_MALFORMED; + if (length == 0) + mid_entry->midState = MID_RESPONSE_RECEIVED; + else + mid_entry->midState = MID_RESPONSE_MALFORMED; #ifdef CONFIG_CIFS_STATS2 - mid_entry->when_received = jiffies; + mid_entry->when_received = jiffies; #endif - list_del_init(&mid_entry->qhead); - mid_entry->callback(mid_entry); - break; - } - mid_entry = NULL; + list_del_init(&mid_entry->qhead); + mid_entry->callback(mid_entry); + break; } spin_unlock(&GlobalMid_Lock); @@ -2659,6 +2673,11 @@ is_path_accessible(int xid, struct cifsTconInfo *tcon, 0 /* not legacy */, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); + + if (rc == -EOPNOTSUPP || rc == -EINVAL) + rc = SMBQueryInformation(xid, tcon, full_path, pfile_info, + cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & + CIFS_MOUNT_MAP_SPECIAL_CHR); kfree(pfile_info); return rc; } diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c index f6728eb6f4b..645114ad0a1 100644 --- a/fs/cifs/sess.c +++ b/fs/cifs/sess.c @@ -276,7 +276,7 @@ static void ascii_ssetup_strings(char **pbcc_area, struct cifsSesInfo *ses, } static void -decode_unicode_ssetup(char **pbcc_area, __u16 bleft, struct cifsSesInfo *ses, +decode_unicode_ssetup(char **pbcc_area, int bleft, struct cifsSesInfo *ses, const struct nls_table *nls_cp) { int len; @@ -284,19 +284,6 @@ decode_unicode_ssetup(char **pbcc_area, __u16 bleft, struct cifsSesInfo *ses, cFYI(1, "bleft %d", bleft); - /* - * Windows servers do not always double null terminate their final - * Unicode string. Check to see if there are an uneven number of bytes - * left. If so, then add an extra NULL pad byte to the end of the - * response. - * - * See section 2.7.2 in "Implementing CIFS" for details - */ - if (bleft % 2) { - data[bleft] = 0; - ++bleft; - } - kfree(ses->serverOS); ses->serverOS = cifs_strndup_from_ucs(data, bleft, true, nls_cp); cFYI(1, "serverOS=%s", ses->serverOS); @@ -929,7 +916,9 @@ ssetup_ntlmssp_authenticate: } /* BB check if Unicode and decode strings */ - if (smb_buf->Flags2 & SMBFLG2_UNICODE) { + if (bytes_remaining == 0) { + /* no string area to decode, do nothing */ + } else if (smb_buf->Flags2 & SMBFLG2_UNICODE) { /* unicode string area must be word-aligned */ if (((unsigned long) bcc_ptr - (unsigned long) smb_buf) % 2) { ++bcc_ptr; diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c index 3313dd19f54..9a37a9b6de3 100644 --- a/fs/configfs/dir.c +++ b/fs/configfs/dir.c @@ -53,11 +53,14 @@ DEFINE_SPINLOCK(configfs_dirent_lock); static void configfs_d_iput(struct dentry * dentry, struct inode * inode) { - struct configfs_dirent * sd = dentry->d_fsdata; + struct configfs_dirent *sd = dentry->d_fsdata; if (sd) { BUG_ON(sd->s_dentry != dentry); + /* Coordinate with configfs_readdir */ + spin_lock(&configfs_dirent_lock); sd->s_dentry = NULL; + spin_unlock(&configfs_dirent_lock); configfs_put(sd); } iput(inode); @@ -689,7 +692,8 @@ static int create_default_group(struct config_group *parent_group, sd = child->d_fsdata; sd->s_type |= CONFIGFS_USET_DEFAULT; } else { - d_delete(child); + BUG_ON(child->d_inode); + d_drop(child); dput(child); } } @@ -1545,7 +1549,7 @@ static int configfs_readdir(struct file * filp, void * dirent, filldir_t filldir struct configfs_dirent * parent_sd = dentry->d_fsdata; struct configfs_dirent *cursor = filp->private_data; struct list_head *p, *q = &cursor->s_sibling; - ino_t ino; + ino_t ino = 0; int i = filp->f_pos; switch (i) { @@ -1573,6 +1577,7 @@ static int configfs_readdir(struct file * filp, void * dirent, filldir_t filldir struct configfs_dirent *next; const char * name; int len; + struct inode *inode = NULL; next = list_entry(p, struct configfs_dirent, s_sibling); @@ -1581,9 +1586,28 @@ static int configfs_readdir(struct file * filp, void * dirent, filldir_t filldir name = configfs_get_name(next); len = strlen(name); - if (next->s_dentry) - ino = next->s_dentry->d_inode->i_ino; - else + + /* + * We'll have a dentry and an inode for + * PINNED items and for open attribute + * files. We lock here to prevent a race + * with configfs_d_iput() clearing + * s_dentry before calling iput(). + * + * Why do we go to the trouble? If + * someone has an attribute file open, + * the inode number should match until + * they close it. Beyond that, we don't + * care. + */ + spin_lock(&configfs_dirent_lock); + dentry = next->s_dentry; + if (dentry) + inode = dentry->d_inode; + if (inode) + ino = inode->i_ino; + spin_unlock(&configfs_dirent_lock); + if (!inode) ino = iunique(configfs_sb, 2); if (filldir(dirent, name, len, filp->f_pos, ino, @@ -1683,7 +1707,8 @@ int configfs_register_subsystem(struct configfs_subsystem *subsys) err = configfs_attach_group(sd->s_element, &group->cg_item, dentry); if (err) { - d_delete(dentry); + BUG_ON(dentry->d_inode); + d_drop(dentry); dput(dentry); } else { spin_lock(&configfs_dirent_lock); diff --git a/fs/debugfs/file.c b/fs/debugfs/file.c index 89d394d8fe2..568304d058a 100644 --- a/fs/debugfs/file.c +++ b/fs/debugfs/file.c @@ -429,25 +429,16 @@ static ssize_t write_file_bool(struct file *file, const char __user *user_buf, { char buf[32]; int buf_size; + bool bv; u32 *val = file->private_data; buf_size = min(count, (sizeof(buf)-1)); if (copy_from_user(buf, user_buf, buf_size)) return -EFAULT; - switch (buf[0]) { - case 'y': - case 'Y': - case '1': - *val = 1; - break; - case 'n': - case 'N': - case '0': - *val = 0; - break; - } - + if (strtobool(buf, &bv) == 0) + *val = bv; + return count; } diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c index c6ba49bd95b..b32eb29a4e6 100644 --- a/fs/fuse/dir.c +++ b/fs/fuse/dir.c @@ -174,7 +174,7 @@ static int fuse_dentry_revalidate(struct dentry *entry, struct nameidata *nd) if (!inode) return 0; - if (nd->flags & LOOKUP_RCU) + if (nd && (nd->flags & LOOKUP_RCU)) return -ECHILD; fc = get_fuse_conn(inode); diff --git a/fs/hpfs/Kconfig b/fs/hpfs/Kconfig index 0c39dc3ef7d..56bd15c5bf6 100644 --- a/fs/hpfs/Kconfig +++ b/fs/hpfs/Kconfig @@ -1,7 +1,6 @@ config HPFS_FS tristate "OS/2 HPFS file system support" depends on BLOCK - depends on BROKEN || !PREEMPT help OS/2 is IBM's operating system for PC's, the same as Warp, and HPFS is the file system used for organizing files on OS/2 hard disk diff --git a/fs/hpfs/alloc.c b/fs/hpfs/alloc.c index 5503e2c2891..7a5eb2c718c 100644 --- a/fs/hpfs/alloc.c +++ b/fs/hpfs/alloc.c @@ -8,8 +8,6 @@ #include "hpfs_fn.h" -static int hpfs_alloc_if_possible_nolock(struct super_block *s, secno sec); - /* * Check if a sector is allocated in bitmap * This is really slow. Turned on only if chk==2 @@ -18,9 +16,9 @@ static int hpfs_alloc_if_possible_nolock(struct super_block *s, secno sec); static int chk_if_allocated(struct super_block *s, secno sec, char *msg) { struct quad_buffer_head qbh; - unsigned *bmp; + u32 *bmp; if (!(bmp = hpfs_map_bitmap(s, sec >> 14, &qbh, "chk"))) goto fail; - if ((bmp[(sec & 0x3fff) >> 5] >> (sec & 0x1f)) & 1) { + if ((cpu_to_le32(bmp[(sec & 0x3fff) >> 5]) >> (sec & 0x1f)) & 1) { hpfs_error(s, "sector '%s' - %08x not allocated in bitmap", msg, sec); goto fail1; } @@ -28,7 +26,7 @@ static int chk_if_allocated(struct super_block *s, secno sec, char *msg) if (sec >= hpfs_sb(s)->sb_dirband_start && sec < hpfs_sb(s)->sb_dirband_start + hpfs_sb(s)->sb_dirband_size) { unsigned ssec = (sec - hpfs_sb(s)->sb_dirband_start) / 4; if (!(bmp = hpfs_map_dnode_bitmap(s, &qbh))) goto fail; - if ((bmp[ssec >> 5] >> (ssec & 0x1f)) & 1) { + if ((le32_to_cpu(bmp[ssec >> 5]) >> (ssec & 0x1f)) & 1) { hpfs_error(s, "sector '%s' - %08x not allocated in directory bitmap", msg, sec); goto fail1; } @@ -75,7 +73,6 @@ static secno alloc_in_bmp(struct super_block *s, secno near, unsigned n, unsigne hpfs_error(s, "Bad allocation size: %d", n); return 0; } - lock_super(s); if (bs != ~0x3fff) { if (!(bmp = hpfs_map_bitmap(s, near >> 14, &qbh, "aib"))) goto uls; } else { @@ -85,10 +82,6 @@ static secno alloc_in_bmp(struct super_block *s, secno near, unsigned n, unsigne ret = bs + nr; goto rt; } - /*if (!tstbits(bmp, nr + n, n + forward)) { - ret = bs + nr + n; - goto rt; - }*/ q = nr + n; b = 0; while ((a = tstbits(bmp, q, n + forward)) != 0) { q += a; @@ -105,14 +98,14 @@ static secno alloc_in_bmp(struct super_block *s, secno near, unsigned n, unsigne goto rt; } nr >>= 5; - /*for (i = nr + 1; i != nr; i++, i &= 0x1ff) {*/ + /*for (i = nr + 1; i != nr; i++, i &= 0x1ff) */ i = nr; do { - if (!bmp[i]) goto cont; - if (n + forward >= 0x3f && bmp[i] != -1) goto cont; + if (!le32_to_cpu(bmp[i])) goto cont; + if (n + forward >= 0x3f && le32_to_cpu(bmp[i]) != 0xffffffff) goto cont; q = i<<5; if (i > 0) { - unsigned k = bmp[i-1]; + unsigned k = le32_to_cpu(bmp[i-1]); while (k & 0x80000000) { q--; k <<= 1; } @@ -132,18 +125,17 @@ static secno alloc_in_bmp(struct super_block *s, secno near, unsigned n, unsigne } while (i != nr); rt: if (ret) { - if (hpfs_sb(s)->sb_chk && ((ret >> 14) != (bs >> 14) || (bmp[(ret & 0x3fff) >> 5] | ~(((1 << n) - 1) << (ret & 0x1f))) != 0xffffffff)) { + if (hpfs_sb(s)->sb_chk && ((ret >> 14) != (bs >> 14) || (le32_to_cpu(bmp[(ret & 0x3fff) >> 5]) | ~(((1 << n) - 1) << (ret & 0x1f))) != 0xffffffff)) { hpfs_error(s, "Allocation doesn't work! Wanted %d, allocated at %08x", n, ret); ret = 0; goto b; } - bmp[(ret & 0x3fff) >> 5] &= ~(((1 << n) - 1) << (ret & 0x1f)); + bmp[(ret & 0x3fff) >> 5] &= cpu_to_le32(~(((1 << n) - 1) << (ret & 0x1f))); hpfs_mark_4buffers_dirty(&qbh); } b: hpfs_brelse4(&qbh); uls: - unlock_super(s); return ret; } @@ -155,7 +147,7 @@ static secno alloc_in_bmp(struct super_block *s, secno near, unsigned n, unsigne * sectors */ -secno hpfs_alloc_sector(struct super_block *s, secno near, unsigned n, int forward, int lock) +secno hpfs_alloc_sector(struct super_block *s, secno near, unsigned n, int forward) { secno sec; int i; @@ -167,7 +159,6 @@ secno hpfs_alloc_sector(struct super_block *s, secno near, unsigned n, int forwa forward = -forward; f_p = 1; } - if (lock) hpfs_lock_creation(s); n_bmps = (sbi->sb_fs_size + 0x4000 - 1) >> 14; if (near && near < sbi->sb_fs_size) { if ((sec = alloc_in_bmp(s, near, n, f_p ? forward : forward/4))) goto ret; @@ -214,18 +205,17 @@ secno hpfs_alloc_sector(struct super_block *s, secno near, unsigned n, int forwa ret: if (sec && f_p) { for (i = 0; i < forward; i++) { - if (!hpfs_alloc_if_possible_nolock(s, sec + i + 1)) { + if (!hpfs_alloc_if_possible(s, sec + i + 1)) { hpfs_error(s, "Prealloc doesn't work! Wanted %d, allocated at %08x, can't allocate %d", forward, sec, i); sec = 0; break; } } } - if (lock) hpfs_unlock_creation(s); return sec; } -static secno alloc_in_dirband(struct super_block *s, secno near, int lock) +static secno alloc_in_dirband(struct super_block *s, secno near) { unsigned nr = near; secno sec; @@ -236,49 +226,35 @@ static secno alloc_in_dirband(struct super_block *s, secno near, int lock) nr = sbi->sb_dirband_start + sbi->sb_dirband_size - 4; nr -= sbi->sb_dirband_start; nr >>= 2; - if (lock) hpfs_lock_creation(s); sec = alloc_in_bmp(s, (~0x3fff) | nr, 1, 0); - if (lock) hpfs_unlock_creation(s); if (!sec) return 0; return ((sec & 0x3fff) << 2) + sbi->sb_dirband_start; } /* Alloc sector if it's free */ -static int hpfs_alloc_if_possible_nolock(struct super_block *s, secno sec) +int hpfs_alloc_if_possible(struct super_block *s, secno sec) { struct quad_buffer_head qbh; - unsigned *bmp; - lock_super(s); + u32 *bmp; if (!(bmp = hpfs_map_bitmap(s, sec >> 14, &qbh, "aip"))) goto end; - if (bmp[(sec & 0x3fff) >> 5] & (1 << (sec & 0x1f))) { - bmp[(sec & 0x3fff) >> 5] &= ~(1 << (sec & 0x1f)); + if (le32_to_cpu(bmp[(sec & 0x3fff) >> 5]) & (1 << (sec & 0x1f))) { + bmp[(sec & 0x3fff) >> 5] &= cpu_to_le32(~(1 << (sec & 0x1f))); hpfs_mark_4buffers_dirty(&qbh); hpfs_brelse4(&qbh); - unlock_super(s); return 1; } hpfs_brelse4(&qbh); end: - unlock_super(s); return 0; } -int hpfs_alloc_if_possible(struct super_block *s, secno sec) -{ - int r; - hpfs_lock_creation(s); - r = hpfs_alloc_if_possible_nolock(s, sec); - hpfs_unlock_creation(s); - return r; -} - /* Free sectors in bitmaps */ void hpfs_free_sectors(struct super_block *s, secno sec, unsigned n) { struct quad_buffer_head qbh; - unsigned *bmp; + u32 *bmp; struct hpfs_sb_info *sbi = hpfs_sb(s); /*printk("2 - ");*/ if (!n) return; @@ -286,26 +262,22 @@ void hpfs_free_sectors(struct super_block *s, secno sec, unsigned n) hpfs_error(s, "Trying to free reserved sector %08x", sec); return; } - lock_super(s); sbi->sb_max_fwd_alloc += n > 0xffff ? 0xffff : n; if (sbi->sb_max_fwd_alloc > 0xffffff) sbi->sb_max_fwd_alloc = 0xffffff; new_map: if (!(bmp = hpfs_map_bitmap(s, sec >> 14, &qbh, "free"))) { - unlock_super(s); return; } new_tst: - if ((bmp[(sec & 0x3fff) >> 5] >> (sec & 0x1f) & 1)) { + if ((le32_to_cpu(bmp[(sec & 0x3fff) >> 5]) >> (sec & 0x1f) & 1)) { hpfs_error(s, "sector %08x not allocated", sec); hpfs_brelse4(&qbh); - unlock_super(s); return; } - bmp[(sec & 0x3fff) >> 5] |= 1 << (sec & 0x1f); + bmp[(sec & 0x3fff) >> 5] |= cpu_to_le32(1 << (sec & 0x1f)); if (!--n) { hpfs_mark_4buffers_dirty(&qbh); hpfs_brelse4(&qbh); - unlock_super(s); return; } if (!(++sec & 0x3fff)) { @@ -327,13 +299,13 @@ int hpfs_check_free_dnodes(struct super_block *s, int n) int n_bmps = (hpfs_sb(s)->sb_fs_size + 0x4000 - 1) >> 14; int b = hpfs_sb(s)->sb_c_bitmap & 0x0fffffff; int i, j; - unsigned *bmp; + u32 *bmp; struct quad_buffer_head qbh; if ((bmp = hpfs_map_dnode_bitmap(s, &qbh))) { for (j = 0; j < 512; j++) { unsigned k; - if (!bmp[j]) continue; - for (k = bmp[j]; k; k >>= 1) if (k & 1) if (!--n) { + if (!le32_to_cpu(bmp[j])) continue; + for (k = le32_to_cpu(bmp[j]); k; k >>= 1) if (k & 1) if (!--n) { hpfs_brelse4(&qbh); return 0; } @@ -352,10 +324,10 @@ int hpfs_check_free_dnodes(struct super_block *s, int n) chk_bmp: if (bmp) { for (j = 0; j < 512; j++) { - unsigned k; - if (!bmp[j]) continue; + u32 k; + if (!le32_to_cpu(bmp[j])) continue; for (k = 0xf; k; k <<= 4) - if ((bmp[j] & k) == k) { + if ((le32_to_cpu(bmp[j]) & k) == k) { if (!--n) { hpfs_brelse4(&qbh); return 0; @@ -379,44 +351,40 @@ void hpfs_free_dnode(struct super_block *s, dnode_secno dno) hpfs_free_sectors(s, dno, 4); } else { struct quad_buffer_head qbh; - unsigned *bmp; + u32 *bmp; unsigned ssec = (dno - hpfs_sb(s)->sb_dirband_start) / 4; - lock_super(s); if (!(bmp = hpfs_map_dnode_bitmap(s, &qbh))) { - unlock_super(s); return; } - bmp[ssec >> 5] |= 1 << (ssec & 0x1f); + bmp[ssec >> 5] |= cpu_to_le32(1 << (ssec & 0x1f)); hpfs_mark_4buffers_dirty(&qbh); hpfs_brelse4(&qbh); - unlock_super(s); } } struct dnode *hpfs_alloc_dnode(struct super_block *s, secno near, - dnode_secno *dno, struct quad_buffer_head *qbh, - int lock) + dnode_secno *dno, struct quad_buffer_head *qbh) { struct dnode *d; if (hpfs_count_one_bitmap(s, hpfs_sb(s)->sb_dmap) > FREE_DNODES_ADD) { - if (!(*dno = alloc_in_dirband(s, near, lock))) - if (!(*dno = hpfs_alloc_sector(s, near, 4, 0, lock))) return NULL; + if (!(*dno = alloc_in_dirband(s, near))) + if (!(*dno = hpfs_alloc_sector(s, near, 4, 0))) return NULL; } else { - if (!(*dno = hpfs_alloc_sector(s, near, 4, 0, lock))) - if (!(*dno = alloc_in_dirband(s, near, lock))) return NULL; + if (!(*dno = hpfs_alloc_sector(s, near, 4, 0))) + if (!(*dno = alloc_in_dirband(s, near))) return NULL; } if (!(d = hpfs_get_4sectors(s, *dno, qbh))) { hpfs_free_dnode(s, *dno); return NULL; } memset(d, 0, 2048); - d->magic = DNODE_MAGIC; - d->first_free = 52; + d->magic = cpu_to_le32(DNODE_MAGIC); + d->first_free = cpu_to_le32(52); d->dirent[0] = 32; d->dirent[2] = 8; d->dirent[30] = 1; d->dirent[31] = 255; - d->self = *dno; + d->self = cpu_to_le32(*dno); return d; } @@ -424,16 +392,16 @@ struct fnode *hpfs_alloc_fnode(struct super_block *s, secno near, fnode_secno *f struct buffer_head **bh) { struct fnode *f; - if (!(*fno = hpfs_alloc_sector(s, near, 1, FNODE_ALLOC_FWD, 1))) return NULL; + if (!(*fno = hpfs_alloc_sector(s, near, 1, FNODE_ALLOC_FWD))) return NULL; if (!(f = hpfs_get_sector(s, *fno, bh))) { hpfs_free_sectors(s, *fno, 1); return NULL; } memset(f, 0, 512); - f->magic = FNODE_MAGIC; - f->ea_offs = 0xc4; + f->magic = cpu_to_le32(FNODE_MAGIC); + f->ea_offs = cpu_to_le16(0xc4); f->btree.n_free_nodes = 8; - f->btree.first_free = 8; + f->btree.first_free = cpu_to_le16(8); return f; } @@ -441,16 +409,16 @@ struct anode *hpfs_alloc_anode(struct super_block *s, secno near, anode_secno *a struct buffer_head **bh) { struct anode *a; - if (!(*ano = hpfs_alloc_sector(s, near, 1, ANODE_ALLOC_FWD, 1))) return NULL; + if (!(*ano = hpfs_alloc_sector(s, near, 1, ANODE_ALLOC_FWD))) return NULL; if (!(a = hpfs_get_sector(s, *ano, bh))) { hpfs_free_sectors(s, *ano, 1); return NULL; } memset(a, 0, 512); - a->magic = ANODE_MAGIC; - a->self = *ano; + a->magic = cpu_to_le32(ANODE_MAGIC); + a->self = cpu_to_le32(*ano); a->btree.n_free_nodes = 40; a->btree.n_used_nodes = 0; - a->btree.first_free = 8; + a->btree.first_free = cpu_to_le16(8); return a; } diff --git a/fs/hpfs/anode.c b/fs/hpfs/anode.c index 6a2f04bf3df..08b503e8ed2 100644 --- a/fs/hpfs/anode.c +++ b/fs/hpfs/anode.c @@ -22,8 +22,8 @@ secno hpfs_bplus_lookup(struct super_block *s, struct inode *inode, if (hpfs_sb(s)->sb_chk) if (hpfs_stop_cycles(s, a, &c1, &c2, "hpfs_bplus_lookup")) return -1; if (btree->internal) { for (i = 0; i < btree->n_used_nodes; i++) - if (btree->u.internal[i].file_secno > sec) { - a = btree->u.internal[i].down; + if (le32_to_cpu(btree->u.internal[i].file_secno) > sec) { + a = le32_to_cpu(btree->u.internal[i].down); brelse(bh); if (!(anode = hpfs_map_anode(s, a, &bh))) return -1; btree = &anode->btree; @@ -34,18 +34,18 @@ secno hpfs_bplus_lookup(struct super_block *s, struct inode *inode, return -1; } for (i = 0; i < btree->n_used_nodes; i++) - if (btree->u.external[i].file_secno <= sec && - btree->u.external[i].file_secno + btree->u.external[i].length > sec) { - a = btree->u.external[i].disk_secno + sec - btree->u.external[i].file_secno; + if (le32_to_cpu(btree->u.external[i].file_secno) <= sec && + le32_to_cpu(btree->u.external[i].file_secno) + le32_to_cpu(btree->u.external[i].length) > sec) { + a = le32_to_cpu(btree->u.external[i].disk_secno) + sec - le32_to_cpu(btree->u.external[i].file_secno); if (hpfs_sb(s)->sb_chk) if (hpfs_chk_sectors(s, a, 1, "data")) { brelse(bh); return -1; } if (inode) { struct hpfs_inode_info *hpfs_inode = hpfs_i(inode); - hpfs_inode->i_file_sec = btree->u.external[i].file_secno; - hpfs_inode->i_disk_sec = btree->u.external[i].disk_secno; - hpfs_inode->i_n_secs = btree->u.external[i].length; + hpfs_inode->i_file_sec = le32_to_cpu(btree->u.external[i].file_secno); + hpfs_inode->i_disk_sec = le32_to_cpu(btree->u.external[i].disk_secno); + hpfs_inode->i_n_secs = le32_to_cpu(btree->u.external[i].length); } brelse(bh); return a; @@ -83,8 +83,8 @@ secno hpfs_add_sector_to_btree(struct super_block *s, secno node, int fnod, unsi return -1; } if (btree->internal) { - a = btree->u.internal[n].down; - btree->u.internal[n].file_secno = -1; + a = le32_to_cpu(btree->u.internal[n].down); + btree->u.internal[n].file_secno = cpu_to_le32(-1); mark_buffer_dirty(bh); brelse(bh); if (hpfs_sb(s)->sb_chk) @@ -94,15 +94,15 @@ secno hpfs_add_sector_to_btree(struct super_block *s, secno node, int fnod, unsi goto go_down; } if (n >= 0) { - if (btree->u.external[n].file_secno + btree->u.external[n].length != fsecno) { + if (le32_to_cpu(btree->u.external[n].file_secno) + le32_to_cpu(btree->u.external[n].length) != fsecno) { hpfs_error(s, "allocated size %08x, trying to add sector %08x, %cnode %08x", - btree->u.external[n].file_secno + btree->u.external[n].length, fsecno, + le32_to_cpu(btree->u.external[n].file_secno) + le32_to_cpu(btree->u.external[n].length), fsecno, fnod?'f':'a', node); brelse(bh); return -1; } - if (hpfs_alloc_if_possible(s, se = btree->u.external[n].disk_secno + btree->u.external[n].length)) { - btree->u.external[n].length++; + if (hpfs_alloc_if_possible(s, se = le32_to_cpu(btree->u.external[n].disk_secno) + le32_to_cpu(btree->u.external[n].length))) { + btree->u.external[n].length = cpu_to_le32(le32_to_cpu(btree->u.external[n].length) + 1); mark_buffer_dirty(bh); brelse(bh); return se; @@ -115,20 +115,20 @@ secno hpfs_add_sector_to_btree(struct super_block *s, secno node, int fnod, unsi } se = !fnod ? node : (node + 16384) & ~16383; } - if (!(se = hpfs_alloc_sector(s, se, 1, fsecno*ALLOC_M>ALLOC_FWD_MAX ? ALLOC_FWD_MAX : fsecno*ALLOC_M<ALLOC_FWD_MIN ? ALLOC_FWD_MIN : fsecno*ALLOC_M, 1))) { + if (!(se = hpfs_alloc_sector(s, se, 1, fsecno*ALLOC_M>ALLOC_FWD_MAX ? ALLOC_FWD_MAX : fsecno*ALLOC_M<ALLOC_FWD_MIN ? ALLOC_FWD_MIN : fsecno*ALLOC_M))) { brelse(bh); return -1; } - fs = n < 0 ? 0 : btree->u.external[n].file_secno + btree->u.external[n].length; + fs = n < 0 ? 0 : le32_to_cpu(btree->u.external[n].file_secno) + le32_to_cpu(btree->u.external[n].length); if (!btree->n_free_nodes) { - up = a != node ? anode->up : -1; + up = a != node ? le32_to_cpu(anode->up) : -1; if (!(anode = hpfs_alloc_anode(s, a, &na, &bh1))) { brelse(bh); hpfs_free_sectors(s, se, 1); return -1; } if (a == node && fnod) { - anode->up = node; + anode->up = cpu_to_le32(node); anode->btree.fnode_parent = 1; anode->btree.n_used_nodes = btree->n_used_nodes; anode->btree.first_free = btree->first_free; @@ -137,9 +137,9 @@ secno hpfs_add_sector_to_btree(struct super_block *s, secno node, int fnod, unsi btree->internal = 1; btree->n_free_nodes = 11; btree->n_used_nodes = 1; - btree->first_free = (char *)&(btree->u.internal[1]) - (char *)btree; - btree->u.internal[0].file_secno = -1; - btree->u.internal[0].down = na; + btree->first_free = cpu_to_le16((char *)&(btree->u.internal[1]) - (char *)btree); + btree->u.internal[0].file_secno = cpu_to_le32(-1); + btree->u.internal[0].down = cpu_to_le32(na); mark_buffer_dirty(bh); } else if (!(ranode = hpfs_alloc_anode(s, /*a*/0, &ra, &bh2))) { brelse(bh); @@ -153,15 +153,15 @@ secno hpfs_add_sector_to_btree(struct super_block *s, secno node, int fnod, unsi btree = &anode->btree; } btree->n_free_nodes--; n = btree->n_used_nodes++; - btree->first_free += 12; - btree->u.external[n].disk_secno = se; - btree->u.external[n].file_secno = fs; - btree->u.external[n].length = 1; + btree->first_free = cpu_to_le16(le16_to_cpu(btree->first_free) + 12); + btree->u.external[n].disk_secno = cpu_to_le32(se); + btree->u.external[n].file_secno = cpu_to_le32(fs); + btree->u.external[n].length = cpu_to_le32(1); mark_buffer_dirty(bh); brelse(bh); if ((a == node && fnod) || na == -1) return se; c2 = 0; - while (up != -1) { + while (up != (anode_secno)-1) { struct anode *new_anode; if (hpfs_sb(s)->sb_chk) if (hpfs_stop_cycles(s, up, &c1, &c2, "hpfs_add_sector_to_btree #2")) return -1; @@ -174,47 +174,47 @@ secno hpfs_add_sector_to_btree(struct super_block *s, secno node, int fnod, unsi } if (btree->n_free_nodes) { btree->n_free_nodes--; n = btree->n_used_nodes++; - btree->first_free += 8; - btree->u.internal[n].file_secno = -1; - btree->u.internal[n].down = na; - btree->u.internal[n-1].file_secno = fs; + btree->first_free = cpu_to_le16(le16_to_cpu(btree->first_free) + 8); + btree->u.internal[n].file_secno = cpu_to_le32(-1); + btree->u.internal[n].down = cpu_to_le32(na); + btree->u.internal[n-1].file_secno = cpu_to_le32(fs); mark_buffer_dirty(bh); brelse(bh); brelse(bh2); hpfs_free_sectors(s, ra, 1); if ((anode = hpfs_map_anode(s, na, &bh))) { - anode->up = up; + anode->up = cpu_to_le32(up); anode->btree.fnode_parent = up == node && fnod; mark_buffer_dirty(bh); brelse(bh); } return se; } - up = up != node ? anode->up : -1; - btree->u.internal[btree->n_used_nodes - 1].file_secno = /*fs*/-1; + up = up != node ? le32_to_cpu(anode->up) : -1; + btree->u.internal[btree->n_used_nodes - 1].file_secno = cpu_to_le32(/*fs*/-1); mark_buffer_dirty(bh); brelse(bh); a = na; if ((new_anode = hpfs_alloc_anode(s, a, &na, &bh))) { anode = new_anode; - /*anode->up = up != -1 ? up : ra;*/ + /*anode->up = cpu_to_le32(up != -1 ? up : ra);*/ anode->btree.internal = 1; anode->btree.n_used_nodes = 1; anode->btree.n_free_nodes = 59; - anode->btree.first_free = 16; - anode->btree.u.internal[0].down = a; - anode->btree.u.internal[0].file_secno = -1; + anode->btree.first_free = cpu_to_le16(16); + anode->btree.u.internal[0].down = cpu_to_le32(a); + anode->btree.u.internal[0].file_secno = cpu_to_le32(-1); mark_buffer_dirty(bh); brelse(bh); if ((anode = hpfs_map_anode(s, a, &bh))) { - anode->up = na; + anode->up = cpu_to_le32(na); mark_buffer_dirty(bh); brelse(bh); } } else na = a; } if ((anode = hpfs_map_anode(s, na, &bh))) { - anode->up = node; + anode->up = cpu_to_le32(node); if (fnod) anode->btree.fnode_parent = 1; mark_buffer_dirty(bh); brelse(bh); @@ -232,14 +232,14 @@ secno hpfs_add_sector_to_btree(struct super_block *s, secno node, int fnod, unsi } btree = &fnode->btree; } - ranode->up = node; - memcpy(&ranode->btree, btree, btree->first_free); + ranode->up = cpu_to_le32(node); + memcpy(&ranode->btree, btree, le16_to_cpu(btree->first_free)); if (fnod) ranode->btree.fnode_parent = 1; ranode->btree.n_free_nodes = (ranode->btree.internal ? 60 : 40) - ranode->btree.n_used_nodes; if (ranode->btree.internal) for (n = 0; n < ranode->btree.n_used_nodes; n++) { struct anode *unode; - if ((unode = hpfs_map_anode(s, ranode->u.internal[n].down, &bh1))) { - unode->up = ra; + if ((unode = hpfs_map_anode(s, le32_to_cpu(ranode->u.internal[n].down), &bh1))) { + unode->up = cpu_to_le32(ra); unode->btree.fnode_parent = 0; mark_buffer_dirty(bh1); brelse(bh1); @@ -248,11 +248,11 @@ secno hpfs_add_sector_to_btree(struct super_block *s, secno node, int fnod, unsi btree->internal = 1; btree->n_free_nodes = fnod ? 10 : 58; btree->n_used_nodes = 2; - btree->first_free = (char *)&btree->u.internal[2] - (char *)btree; - btree->u.internal[0].file_secno = fs; - btree->u.internal[0].down = ra; - btree->u.internal[1].file_secno = -1; - btree->u.internal[1].down = na; + btree->first_free = cpu_to_le16((char *)&btree->u.internal[2] - (char *)btree); + btree->u.internal[0].file_secno = cpu_to_le32(fs); + btree->u.internal[0].down = cpu_to_le32(ra); + btree->u.internal[1].file_secno = cpu_to_le32(-1); + btree->u.internal[1].down = cpu_to_le32(na); mark_buffer_dirty(bh); brelse(bh); mark_buffer_dirty(bh2); @@ -279,7 +279,7 @@ void hpfs_remove_btree(struct super_block *s, struct bplus_header *btree) go_down: d2 = 0; while (btree1->internal) { - ano = btree1->u.internal[pos].down; + ano = le32_to_cpu(btree1->u.internal[pos].down); if (level) brelse(bh); if (hpfs_sb(s)->sb_chk) if (hpfs_stop_cycles(s, ano, &d1, &d2, "hpfs_remove_btree #1")) @@ -290,7 +290,7 @@ void hpfs_remove_btree(struct super_block *s, struct bplus_header *btree) pos = 0; } for (i = 0; i < btree1->n_used_nodes; i++) - hpfs_free_sectors(s, btree1->u.external[i].disk_secno, btree1->u.external[i].length); + hpfs_free_sectors(s, le32_to_cpu(btree1->u.external[i].disk_secno), le32_to_cpu(btree1->u.external[i].length)); go_up: if (!level) return; brelse(bh); @@ -298,13 +298,13 @@ void hpfs_remove_btree(struct super_block *s, struct bplus_header *btree) if (hpfs_stop_cycles(s, ano, &c1, &c2, "hpfs_remove_btree #2")) return; hpfs_free_sectors(s, ano, 1); oano = ano; - ano = anode->up; + ano = le32_to_cpu(anode->up); if (--level) { if (!(anode = hpfs_map_anode(s, ano, &bh))) return; btree1 = &anode->btree; } else btree1 = btree; for (i = 0; i < btree1->n_used_nodes; i++) { - if (btree1->u.internal[i].down == oano) { + if (le32_to_cpu(btree1->u.internal[i].down) == oano) { if ((pos = i + 1) < btree1->n_used_nodes) goto go_down; else @@ -411,7 +411,7 @@ void hpfs_truncate_btree(struct super_block *s, secno f, int fno, unsigned secs) if (fno) { btree->n_free_nodes = 8; btree->n_used_nodes = 0; - btree->first_free = 8; + btree->first_free = cpu_to_le16(8); btree->internal = 0; mark_buffer_dirty(bh); } else hpfs_free_sectors(s, f, 1); @@ -421,22 +421,22 @@ void hpfs_truncate_btree(struct super_block *s, secno f, int fno, unsigned secs) while (btree->internal) { nodes = btree->n_used_nodes + btree->n_free_nodes; for (i = 0; i < btree->n_used_nodes; i++) - if (btree->u.internal[i].file_secno >= secs) goto f; + if (le32_to_cpu(btree->u.internal[i].file_secno) >= secs) goto f; brelse(bh); hpfs_error(s, "internal btree %08x doesn't end with -1", node); return; f: for (j = i + 1; j < btree->n_used_nodes; j++) - hpfs_ea_remove(s, btree->u.internal[j].down, 1, 0); + hpfs_ea_remove(s, le32_to_cpu(btree->u.internal[j].down), 1, 0); btree->n_used_nodes = i + 1; btree->n_free_nodes = nodes - btree->n_used_nodes; - btree->first_free = 8 + 8 * btree->n_used_nodes; + btree->first_free = cpu_to_le16(8 + 8 * btree->n_used_nodes); mark_buffer_dirty(bh); - if (btree->u.internal[i].file_secno == secs) { + if (btree->u.internal[i].file_secno == cpu_to_le32(secs)) { brelse(bh); return; } - node = btree->u.internal[i].down; + node = le32_to_cpu(btree->u.internal[i].down); brelse(bh); if (hpfs_sb(s)->sb_chk) if (hpfs_stop_cycles(s, node, &c1, &c2, "hpfs_truncate_btree")) @@ -446,25 +446,25 @@ void hpfs_truncate_btree(struct super_block *s, secno f, int fno, unsigned secs) } nodes = btree->n_used_nodes + btree->n_free_nodes; for (i = 0; i < btree->n_used_nodes; i++) - if (btree->u.external[i].file_secno + btree->u.external[i].length >= secs) goto ff; + if (le32_to_cpu(btree->u.external[i].file_secno) + le32_to_cpu(btree->u.external[i].length) >= secs) goto ff; brelse(bh); return; ff: - if (secs <= btree->u.external[i].file_secno) { + if (secs <= le32_to_cpu(btree->u.external[i].file_secno)) { hpfs_error(s, "there is an allocation error in file %08x, sector %08x", f, secs); if (i) i--; } - else if (btree->u.external[i].file_secno + btree->u.external[i].length > secs) { - hpfs_free_sectors(s, btree->u.external[i].disk_secno + secs - - btree->u.external[i].file_secno, btree->u.external[i].length - - secs + btree->u.external[i].file_secno); /* I hope gcc optimizes this :-) */ - btree->u.external[i].length = secs - btree->u.external[i].file_secno; + else if (le32_to_cpu(btree->u.external[i].file_secno) + le32_to_cpu(btree->u.external[i].length) > secs) { + hpfs_free_sectors(s, le32_to_cpu(btree->u.external[i].disk_secno) + secs - + le32_to_cpu(btree->u.external[i].file_secno), le32_to_cpu(btree->u.external[i].length) + - secs + le32_to_cpu(btree->u.external[i].file_secno)); /* I hope gcc optimizes this :-) */ + btree->u.external[i].length = cpu_to_le32(secs - le32_to_cpu(btree->u.external[i].file_secno)); } for (j = i + 1; j < btree->n_used_nodes; j++) - hpfs_free_sectors(s, btree->u.external[j].disk_secno, btree->u.external[j].length); + hpfs_free_sectors(s, le32_to_cpu(btree->u.external[j].disk_secno), le32_to_cpu(btree->u.external[j].length)); btree->n_used_nodes = i + 1; btree->n_free_nodes = nodes - btree->n_used_nodes; - btree->first_free = 8 + 12 * btree->n_used_nodes; + btree->first_free = cpu_to_le16(8 + 12 * btree->n_used_nodes); mark_buffer_dirty(bh); brelse(bh); } @@ -480,12 +480,12 @@ void hpfs_remove_fnode(struct super_block *s, fnode_secno fno) struct extended_attribute *ea_end; if (!(fnode = hpfs_map_fnode(s, fno, &bh))) return; if (!fnode->dirflag) hpfs_remove_btree(s, &fnode->btree); - else hpfs_remove_dtree(s, fnode->u.external[0].disk_secno); + else hpfs_remove_dtree(s, le32_to_cpu(fnode->u.external[0].disk_secno)); ea_end = fnode_end_ea(fnode); for (ea = fnode_ea(fnode); ea < ea_end; ea = next_ea(ea)) if (ea->indirect) hpfs_ea_remove(s, ea_sec(ea), ea->anode, ea_len(ea)); - hpfs_ea_ext_remove(s, fnode->ea_secno, fnode->ea_anode, fnode->ea_size_l); + hpfs_ea_ext_remove(s, le32_to_cpu(fnode->ea_secno), fnode->ea_anode, le32_to_cpu(fnode->ea_size_l)); brelse(bh); hpfs_free_sectors(s, fno, 1); } diff --git a/fs/hpfs/buffer.c b/fs/hpfs/buffer.c index 793cb9d943d..9ecde27d1e2 100644 --- a/fs/hpfs/buffer.c +++ b/fs/hpfs/buffer.c @@ -9,22 +9,6 @@ #include <linux/slab.h> #include "hpfs_fn.h" -void hpfs_lock_creation(struct super_block *s) -{ -#ifdef DEBUG_LOCKS - printk("lock creation\n"); -#endif - mutex_lock(&hpfs_sb(s)->hpfs_creation_de); -} - -void hpfs_unlock_creation(struct super_block *s) -{ -#ifdef DEBUG_LOCKS - printk("unlock creation\n"); -#endif - mutex_unlock(&hpfs_sb(s)->hpfs_creation_de); -} - /* Map a sector into a buffer and return pointers to it and to the buffer. */ void *hpfs_map_sector(struct super_block *s, unsigned secno, struct buffer_head **bhp, @@ -32,6 +16,8 @@ void *hpfs_map_sector(struct super_block *s, unsigned secno, struct buffer_head { struct buffer_head *bh; + hpfs_lock_assert(s); + cond_resched(); *bhp = bh = sb_bread(s, secno); @@ -50,6 +36,8 @@ void *hpfs_get_sector(struct super_block *s, unsigned secno, struct buffer_head struct buffer_head *bh; /*return hpfs_map_sector(s, secno, bhp, 0);*/ + hpfs_lock_assert(s); + cond_resched(); if ((*bhp = bh = sb_getblk(s, secno)) != NULL) { @@ -70,6 +58,8 @@ void *hpfs_map_4sectors(struct super_block *s, unsigned secno, struct quad_buffe struct buffer_head *bh; char *data; + hpfs_lock_assert(s); + cond_resched(); if (secno & 3) { @@ -125,6 +115,8 @@ void *hpfs_get_4sectors(struct super_block *s, unsigned secno, { cond_resched(); + hpfs_lock_assert(s); + if (secno & 3) { printk("HPFS: hpfs_get_4sectors: unaligned read\n"); return NULL; diff --git a/fs/hpfs/dir.c b/fs/hpfs/dir.c index b3d7c0ddb60..f46ae025bfb 100644 --- a/fs/hpfs/dir.c +++ b/fs/hpfs/dir.c @@ -88,9 +88,9 @@ static int hpfs_readdir(struct file *filp, void *dirent, filldir_t filldir) hpfs_error(inode->i_sb, "not a directory, fnode %08lx", (unsigned long)inode->i_ino); } - if (hpfs_inode->i_dno != fno->u.external[0].disk_secno) { + if (hpfs_inode->i_dno != le32_to_cpu(fno->u.external[0].disk_secno)) { e = 1; - hpfs_error(inode->i_sb, "corrupted inode: i_dno == %08x, fnode -> dnode == %08x", hpfs_inode->i_dno, fno->u.external[0].disk_secno); + hpfs_error(inode->i_sb, "corrupted inode: i_dno == %08x, fnode -> dnode == %08x", hpfs_inode->i_dno, le32_to_cpu(fno->u.external[0].disk_secno)); } brelse(bh); if (e) { @@ -156,7 +156,7 @@ static int hpfs_readdir(struct file *filp, void *dirent, filldir_t filldir) goto again; } tempname = hpfs_translate_name(inode->i_sb, de->name, de->namelen, lc, de->not_8x3); - if (filldir(dirent, tempname, de->namelen, old_pos, de->fnode, DT_UNKNOWN) < 0) { + if (filldir(dirent, tempname, de->namelen, old_pos, le32_to_cpu(de->fnode), DT_UNKNOWN) < 0) { filp->f_pos = old_pos; if (tempname != de->name) kfree(tempname); hpfs_brelse4(&qbh); @@ -221,7 +221,7 @@ struct dentry *hpfs_lookup(struct inode *dir, struct dentry *dentry, struct name * Get inode number, what we're after. */ - ino = de->fnode; + ino = le32_to_cpu(de->fnode); /* * Go find or make an inode. @@ -236,7 +236,7 @@ struct dentry *hpfs_lookup(struct inode *dir, struct dentry *dentry, struct name hpfs_init_inode(result); if (de->directory) hpfs_read_inode(result); - else if (de->ea_size && hpfs_sb(dir->i_sb)->sb_eas) + else if (le32_to_cpu(de->ea_size) && hpfs_sb(dir->i_sb)->sb_eas) hpfs_read_inode(result); else { result->i_mode |= S_IFREG; @@ -250,8 +250,6 @@ struct dentry *hpfs_lookup(struct inode *dir, struct dentry *dentry, struct name hpfs_result = hpfs_i(result); if (!de->directory) hpfs_result->i_parent_dir = dir->i_ino; - hpfs_decide_conv(result, name, len); - if (de->has_acl || de->has_xtd_perm) if (!(dir->i_sb->s_flags & MS_RDONLY)) { hpfs_error(result->i_sb, "ACLs or XPERM found. This is probably HPFS386. This driver doesn't support it now. Send me some info on these structures"); goto bail1; @@ -263,19 +261,19 @@ struct dentry *hpfs_lookup(struct inode *dir, struct dentry *dentry, struct name */ if (!result->i_ctime.tv_sec) { - if (!(result->i_ctime.tv_sec = local_to_gmt(dir->i_sb, de->creation_date))) + if (!(result->i_ctime.tv_sec = local_to_gmt(dir->i_sb, le32_to_cpu(de->creation_date)))) result->i_ctime.tv_sec = 1; result->i_ctime.tv_nsec = 0; - result->i_mtime.tv_sec = local_to_gmt(dir->i_sb, de->write_date); + result->i_mtime.tv_sec = local_to_gmt(dir->i_sb, le32_to_cpu(de->write_date)); result->i_mtime.tv_nsec = 0; - result->i_atime.tv_sec = local_to_gmt(dir->i_sb, de->read_date); + result->i_atime.tv_sec = local_to_gmt(dir->i_sb, le32_to_cpu(de->read_date)); result->i_atime.tv_nsec = 0; - hpfs_result->i_ea_size = de->ea_size; + hpfs_result->i_ea_size = le32_to_cpu(de->ea_size); if (!hpfs_result->i_ea_mode && de->read_only) result->i_mode &= ~0222; if (!de->directory) { if (result->i_size == -1) { - result->i_size = de->file_size; + result->i_size = le32_to_cpu(de->file_size); result->i_data.a_ops = &hpfs_aops; hpfs_i(result)->mmu_private = result->i_size; /* diff --git a/fs/hpfs/dnode.c b/fs/hpfs/dnode.c index 9b2ffadfc8c..1e0e2ac30fd 100644 --- a/fs/hpfs/dnode.c +++ b/fs/hpfs/dnode.c @@ -14,11 +14,11 @@ static loff_t get_pos(struct dnode *d, struct hpfs_dirent *fde) struct hpfs_dirent *de_end = dnode_end_de(d); int i = 1; for (de = dnode_first_de(d); de < de_end; de = de_next_de(de)) { - if (de == fde) return ((loff_t) d->self << 4) | (loff_t)i; + if (de == fde) return ((loff_t) le32_to_cpu(d->self) << 4) | (loff_t)i; i++; } printk("HPFS: get_pos: not_found\n"); - return ((loff_t)d->self << 4) | (loff_t)1; + return ((loff_t)le32_to_cpu(d->self) << 4) | (loff_t)1; } void hpfs_add_pos(struct inode *inode, loff_t *pos) @@ -130,29 +130,30 @@ static void set_last_pointer(struct super_block *s, struct dnode *d, dnode_secno { struct hpfs_dirent *de; if (!(de = dnode_last_de(d))) { - hpfs_error(s, "set_last_pointer: empty dnode %08x", d->self); + hpfs_error(s, "set_last_pointer: empty dnode %08x", le32_to_cpu(d->self)); return; } if (hpfs_sb(s)->sb_chk) { if (de->down) { hpfs_error(s, "set_last_pointer: dnode %08x has already last pointer %08x", - d->self, de_down_pointer(de)); + le32_to_cpu(d->self), de_down_pointer(de)); return; } - if (de->length != 32) { - hpfs_error(s, "set_last_pointer: bad last dirent in dnode %08x", d->self); + if (le16_to_cpu(de->length) != 32) { + hpfs_error(s, "set_last_pointer: bad last dirent in dnode %08x", le32_to_cpu(d->self)); return; } } if (ptr) { - if ((d->first_free += 4) > 2048) { - hpfs_error(s,"set_last_pointer: too long dnode %08x", d->self); - d->first_free -= 4; + d->first_free = cpu_to_le32(le32_to_cpu(d->first_free) + 4); + if (le32_to_cpu(d->first_free) > 2048) { + hpfs_error(s, "set_last_pointer: too long dnode %08x", le32_to_cpu(d->self)); + d->first_free = cpu_to_le32(le32_to_cpu(d->first_free) - 4); return; } - de->length = 36; + de->length = cpu_to_le16(36); de->down = 1; - *(dnode_secno *)((char *)de + 32) = ptr; + *(dnode_secno *)((char *)de + 32) = cpu_to_le32(ptr); } } @@ -168,7 +169,7 @@ struct hpfs_dirent *hpfs_add_de(struct super_block *s, struct dnode *d, for (de = dnode_first_de(d); de < de_end; de = de_next_de(de)) { int c = hpfs_compare_names(s, name, namelen, de->name, de->namelen, de->last); if (!c) { - hpfs_error(s, "name (%c,%d) already exists in dnode %08x", *name, namelen, d->self); + hpfs_error(s, "name (%c,%d) already exists in dnode %08x", *name, namelen, le32_to_cpu(d->self)); return NULL; } if (c < 0) break; @@ -176,15 +177,14 @@ struct hpfs_dirent *hpfs_add_de(struct super_block *s, struct dnode *d, memmove((char *)de + d_size, de, (char *)de_end - (char *)de); memset(de, 0, d_size); if (down_ptr) { - *(int *)((char *)de + d_size - 4) = down_ptr; + *(dnode_secno *)((char *)de + d_size - 4) = cpu_to_le32(down_ptr); de->down = 1; } - de->length = d_size; - if (down_ptr) de->down = 1; + de->length = cpu_to_le16(d_size); de->not_8x3 = hpfs_is_name_long(name, namelen); de->namelen = namelen; memcpy(de->name, name, namelen); - d->first_free += d_size; + d->first_free = cpu_to_le32(le32_to_cpu(d->first_free) + d_size); return de; } @@ -194,25 +194,25 @@ static void hpfs_delete_de(struct super_block *s, struct dnode *d, struct hpfs_dirent *de) { if (de->last) { - hpfs_error(s, "attempt to delete last dirent in dnode %08x", d->self); + hpfs_error(s, "attempt to delete last dirent in dnode %08x", le32_to_cpu(d->self)); return; } - d->first_free -= de->length; - memmove(de, de_next_de(de), d->first_free + (char *)d - (char *)de); + d->first_free = cpu_to_le32(le32_to_cpu(d->first_free) - le16_to_cpu(de->length)); + memmove(de, de_next_de(de), le32_to_cpu(d->first_free) + (char *)d - (char *)de); } static void fix_up_ptrs(struct super_block *s, struct dnode *d) { struct hpfs_dirent *de; struct hpfs_dirent *de_end = dnode_end_de(d); - dnode_secno dno = d->self; + dnode_secno dno = le32_to_cpu(d->self); for (de = dnode_first_de(d); de < de_end; de = de_next_de(de)) if (de->down) { struct quad_buffer_head qbh; struct dnode *dd; if ((dd = hpfs_map_dnode(s, de_down_pointer(de), &qbh))) { - if (dd->up != dno || dd->root_dnode) { - dd->up = dno; + if (le32_to_cpu(dd->up) != dno || dd->root_dnode) { + dd->up = cpu_to_le32(dno); dd->root_dnode = 0; hpfs_mark_4buffers_dirty(&qbh); } @@ -262,7 +262,7 @@ static int hpfs_add_to_dnode(struct inode *i, dnode_secno dno, kfree(nname); return 1; } - if (d->first_free + de_size(namelen, down_ptr) <= 2048) { + if (le32_to_cpu(d->first_free) + de_size(namelen, down_ptr) <= 2048) { loff_t t; copy_de(de=hpfs_add_de(i->i_sb, d, name, namelen, down_ptr), new_de); t = get_pos(d, de); @@ -286,11 +286,11 @@ static int hpfs_add_to_dnode(struct inode *i, dnode_secno dno, kfree(nname); return 1; } - memcpy(nd, d, d->first_free); + memcpy(nd, d, le32_to_cpu(d->first_free)); copy_de(de = hpfs_add_de(i->i_sb, nd, name, namelen, down_ptr), new_de); for_all_poss(i, hpfs_pos_ins, get_pos(nd, de), 1); h = ((char *)dnode_last_de(nd) - (char *)nd) / 2 + 10; - if (!(ad = hpfs_alloc_dnode(i->i_sb, d->up, &adno, &qbh1, 0))) { + if (!(ad = hpfs_alloc_dnode(i->i_sb, le32_to_cpu(d->up), &adno, &qbh1))) { hpfs_error(i->i_sb, "unable to alloc dnode - dnode tree will be corrupted"); hpfs_brelse4(&qbh); kfree(nd); @@ -313,20 +313,21 @@ static int hpfs_add_to_dnode(struct inode *i, dnode_secno dno, down_ptr = adno; set_last_pointer(i->i_sb, ad, de->down ? de_down_pointer(de) : 0); de = de_next_de(de); - memmove((char *)nd + 20, de, nd->first_free + (char *)nd - (char *)de); - nd->first_free -= (char *)de - (char *)nd - 20; - memcpy(d, nd, nd->first_free); + memmove((char *)nd + 20, de, le32_to_cpu(nd->first_free) + (char *)nd - (char *)de); + nd->first_free = cpu_to_le32(le32_to_cpu(nd->first_free) - ((char *)de - (char *)nd - 20)); + memcpy(d, nd, le32_to_cpu(nd->first_free)); for_all_poss(i, hpfs_pos_del, (loff_t)dno << 4, pos); fix_up_ptrs(i->i_sb, ad); if (!d->root_dnode) { - dno = ad->up = d->up; + ad->up = d->up; + dno = le32_to_cpu(ad->up); hpfs_mark_4buffers_dirty(&qbh); hpfs_brelse4(&qbh); hpfs_mark_4buffers_dirty(&qbh1); hpfs_brelse4(&qbh1); goto go_up; } - if (!(rd = hpfs_alloc_dnode(i->i_sb, d->up, &rdno, &qbh2, 0))) { + if (!(rd = hpfs_alloc_dnode(i->i_sb, le32_to_cpu(d->up), &rdno, &qbh2))) { hpfs_error(i->i_sb, "unable to alloc dnode - dnode tree will be corrupted"); hpfs_brelse4(&qbh); hpfs_brelse4(&qbh1); @@ -338,7 +339,7 @@ static int hpfs_add_to_dnode(struct inode *i, dnode_secno dno, i->i_blocks += 4; rd->root_dnode = 1; rd->up = d->up; - if (!(fnode = hpfs_map_fnode(i->i_sb, d->up, &bh))) { + if (!(fnode = hpfs_map_fnode(i->i_sb, le32_to_cpu(d->up), &bh))) { hpfs_free_dnode(i->i_sb, rdno); hpfs_brelse4(&qbh); hpfs_brelse4(&qbh1); @@ -347,10 +348,11 @@ static int hpfs_add_to_dnode(struct inode *i, dnode_secno dno, kfree(nname); return 1; } - fnode->u.external[0].disk_secno = rdno; + fnode->u.external[0].disk_secno = cpu_to_le32(rdno); mark_buffer_dirty(bh); brelse(bh); - d->up = ad->up = hpfs_i(i)->i_dno = rdno; + hpfs_i(i)->i_dno = rdno; + d->up = ad->up = cpu_to_le32(rdno); d->root_dnode = ad->root_dnode = 0; hpfs_mark_4buffers_dirty(&qbh); hpfs_brelse4(&qbh); @@ -373,7 +375,7 @@ static int hpfs_add_to_dnode(struct inode *i, dnode_secno dno, int hpfs_add_dirent(struct inode *i, const unsigned char *name, unsigned namelen, - struct hpfs_dirent *new_de, int cdepth) + struct hpfs_dirent *new_de) { struct hpfs_inode_info *hpfs_inode = hpfs_i(i); struct dnode *d; @@ -403,7 +405,6 @@ int hpfs_add_dirent(struct inode *i, } } hpfs_brelse4(&qbh); - if (!cdepth) hpfs_lock_creation(i->i_sb); if (hpfs_check_free_dnodes(i->i_sb, FREE_DNODES_ADD)) { c = 1; goto ret; @@ -411,7 +412,6 @@ int hpfs_add_dirent(struct inode *i, i->i_version++; c = hpfs_add_to_dnode(i, dno, name, namelen, new_de, 0); ret: - if (!cdepth) hpfs_unlock_creation(i->i_sb); return c; } @@ -437,9 +437,9 @@ static secno move_to_top(struct inode *i, dnode_secno from, dnode_secno to) return 0; if (!(dnode = hpfs_map_dnode(i->i_sb, dno, &qbh))) return 0; if (hpfs_sb(i->i_sb)->sb_chk) { - if (dnode->up != chk_up) { + if (le32_to_cpu(dnode->up) != chk_up) { hpfs_error(i->i_sb, "move_to_top: up pointer from %08x should be %08x, is %08x", - dno, chk_up, dnode->up); + dno, chk_up, le32_to_cpu(dnode->up)); hpfs_brelse4(&qbh); return 0; } @@ -455,7 +455,7 @@ static secno move_to_top(struct inode *i, dnode_secno from, dnode_secno to) hpfs_brelse4(&qbh); } while (!(de = dnode_pre_last_de(dnode))) { - dnode_secno up = dnode->up; + dnode_secno up = le32_to_cpu(dnode->up); hpfs_brelse4(&qbh); hpfs_free_dnode(i->i_sb, dno); i->i_size -= 2048; @@ -474,8 +474,8 @@ static secno move_to_top(struct inode *i, dnode_secno from, dnode_secno to) hpfs_brelse4(&qbh); return 0; } - dnode->first_free -= 4; - de->length -= 4; + dnode->first_free = cpu_to_le32(le32_to_cpu(dnode->first_free) - 4); + de->length = cpu_to_le16(le16_to_cpu(de->length) - 4); de->down = 0; hpfs_mark_4buffers_dirty(&qbh); dno = up; @@ -483,12 +483,12 @@ static secno move_to_top(struct inode *i, dnode_secno from, dnode_secno to) t = get_pos(dnode, de); for_all_poss(i, hpfs_pos_subst, t, 4); for_all_poss(i, hpfs_pos_subst, t + 1, 5); - if (!(nde = kmalloc(de->length, GFP_NOFS))) { + if (!(nde = kmalloc(le16_to_cpu(de->length), GFP_NOFS))) { hpfs_error(i->i_sb, "out of memory for dirent - directory will be corrupted"); hpfs_brelse4(&qbh); return 0; } - memcpy(nde, de, de->length); + memcpy(nde, de, le16_to_cpu(de->length)); ddno = de->down ? de_down_pointer(de) : 0; hpfs_delete_de(i->i_sb, dnode, de); set_last_pointer(i->i_sb, dnode, ddno); @@ -517,11 +517,11 @@ static void delete_empty_dnode(struct inode *i, dnode_secno dno) try_it_again: if (hpfs_stop_cycles(i->i_sb, dno, &c1, &c2, "delete_empty_dnode")) return; if (!(dnode = hpfs_map_dnode(i->i_sb, dno, &qbh))) return; - if (dnode->first_free > 56) goto end; - if (dnode->first_free == 52 || dnode->first_free == 56) { + if (le32_to_cpu(dnode->first_free) > 56) goto end; + if (le32_to_cpu(dnode->first_free) == 52 || le32_to_cpu(dnode->first_free) == 56) { struct hpfs_dirent *de_end; int root = dnode->root_dnode; - up = dnode->up; + up = le32_to_cpu(dnode->up); de = dnode_first_de(dnode); down = de->down ? de_down_pointer(de) : 0; if (hpfs_sb(i->i_sb)->sb_chk) if (root && !down) { @@ -545,13 +545,13 @@ static void delete_empty_dnode(struct inode *i, dnode_secno dno) return; } if ((d1 = hpfs_map_dnode(i->i_sb, down, &qbh1))) { - d1->up = up; + d1->up = cpu_to_le32(up); d1->root_dnode = 1; hpfs_mark_4buffers_dirty(&qbh1); hpfs_brelse4(&qbh1); } if ((fnode = hpfs_map_fnode(i->i_sb, up, &bh))) { - fnode->u.external[0].disk_secno = down; + fnode->u.external[0].disk_secno = cpu_to_le32(down); mark_buffer_dirty(bh); brelse(bh); } @@ -570,22 +570,22 @@ static void delete_empty_dnode(struct inode *i, dnode_secno dno) for_all_poss(i, hpfs_pos_subst, ((loff_t)dno << 4) | 1, ((loff_t)up << 4) | p); if (!down) { de->down = 0; - de->length -= 4; - dnode->first_free -= 4; + de->length = cpu_to_le16(le16_to_cpu(de->length) - 4); + dnode->first_free = cpu_to_le32(le32_to_cpu(dnode->first_free) - 4); memmove(de_next_de(de), (char *)de_next_de(de) + 4, - (char *)dnode + dnode->first_free - (char *)de_next_de(de)); + (char *)dnode + le32_to_cpu(dnode->first_free) - (char *)de_next_de(de)); } else { struct dnode *d1; struct quad_buffer_head qbh1; - *(dnode_secno *) ((void *) de + de->length - 4) = down; + *(dnode_secno *) ((void *) de + le16_to_cpu(de->length) - 4) = down; if ((d1 = hpfs_map_dnode(i->i_sb, down, &qbh1))) { - d1->up = up; + d1->up = cpu_to_le32(up); hpfs_mark_4buffers_dirty(&qbh1); hpfs_brelse4(&qbh1); } } } else { - hpfs_error(i->i_sb, "delete_empty_dnode: dnode %08x, first_free == %03x", dno, dnode->first_free); + hpfs_error(i->i_sb, "delete_empty_dnode: dnode %08x, first_free == %03x", dno, le32_to_cpu(dnode->first_free)); goto end; } @@ -596,18 +596,18 @@ static void delete_empty_dnode(struct inode *i, dnode_secno dno) struct quad_buffer_head qbh1; if (!de_next->down) goto endm; ndown = de_down_pointer(de_next); - if (!(de_cp = kmalloc(de->length, GFP_NOFS))) { + if (!(de_cp = kmalloc(le16_to_cpu(de->length), GFP_NOFS))) { printk("HPFS: out of memory for dtree balancing\n"); goto endm; } - memcpy(de_cp, de, de->length); + memcpy(de_cp, de, le16_to_cpu(de->length)); hpfs_delete_de(i->i_sb, dnode, de); hpfs_mark_4buffers_dirty(&qbh); hpfs_brelse4(&qbh); for_all_poss(i, hpfs_pos_subst, ((loff_t)up << 4) | p, 4); for_all_poss(i, hpfs_pos_del, ((loff_t)up << 4) | p, 1); if (de_cp->down) if ((d1 = hpfs_map_dnode(i->i_sb, de_down_pointer(de_cp), &qbh1))) { - d1->up = ndown; + d1->up = cpu_to_le32(ndown); hpfs_mark_4buffers_dirty(&qbh1); hpfs_brelse4(&qbh1); } @@ -635,7 +635,7 @@ static void delete_empty_dnode(struct inode *i, dnode_secno dno) struct hpfs_dirent *del = dnode_last_de(d1); dlp = del->down ? de_down_pointer(del) : 0; if (!dlp && down) { - if (d1->first_free > 2044) { + if (le32_to_cpu(d1->first_free) > 2044) { if (hpfs_sb(i->i_sb)->sb_chk >= 2) { printk("HPFS: warning: unbalanced dnode tree, see hpfs.txt 4 more info\n"); printk("HPFS: warning: terminating balancing operation\n"); @@ -647,38 +647,38 @@ static void delete_empty_dnode(struct inode *i, dnode_secno dno) printk("HPFS: warning: unbalanced dnode tree, see hpfs.txt 4 more info\n"); printk("HPFS: warning: goin'on\n"); } - del->length += 4; + del->length = cpu_to_le16(le16_to_cpu(del->length) + 4); del->down = 1; - d1->first_free += 4; + d1->first_free = cpu_to_le32(le32_to_cpu(d1->first_free) + 4); } if (dlp && !down) { - del->length -= 4; + del->length = cpu_to_le16(le16_to_cpu(del->length) - 4); del->down = 0; - d1->first_free -= 4; + d1->first_free = cpu_to_le32(le32_to_cpu(d1->first_free) - 4); } else if (down) - *(dnode_secno *) ((void *) del + del->length - 4) = down; + *(dnode_secno *) ((void *) del + le16_to_cpu(del->length) - 4) = cpu_to_le32(down); } else goto endm; - if (!(de_cp = kmalloc(de_prev->length, GFP_NOFS))) { + if (!(de_cp = kmalloc(le16_to_cpu(de_prev->length), GFP_NOFS))) { printk("HPFS: out of memory for dtree balancing\n"); hpfs_brelse4(&qbh1); goto endm; } hpfs_mark_4buffers_dirty(&qbh1); hpfs_brelse4(&qbh1); - memcpy(de_cp, de_prev, de_prev->length); + memcpy(de_cp, de_prev, le16_to_cpu(de_prev->length)); hpfs_delete_de(i->i_sb, dnode, de_prev); if (!de_prev->down) { - de_prev->length += 4; + de_prev->length = cpu_to_le16(le16_to_cpu(de_prev->length) + 4); de_prev->down = 1; - dnode->first_free += 4; + dnode->first_free = cpu_to_le32(le32_to_cpu(dnode->first_free) + 4); } - *(dnode_secno *) ((void *) de_prev + de_prev->length - 4) = ndown; + *(dnode_secno *) ((void *) de_prev + le16_to_cpu(de_prev->length) - 4) = cpu_to_le32(ndown); hpfs_mark_4buffers_dirty(&qbh); hpfs_brelse4(&qbh); for_all_poss(i, hpfs_pos_subst, ((loff_t)up << 4) | (p - 1), 4); for_all_poss(i, hpfs_pos_subst, ((loff_t)up << 4) | p, ((loff_t)up << 4) | (p - 1)); if (down) if ((d1 = hpfs_map_dnode(i->i_sb, de_down_pointer(de), &qbh1))) { - d1->up = ndown; + d1->up = cpu_to_le32(ndown); hpfs_mark_4buffers_dirty(&qbh1); hpfs_brelse4(&qbh1); } @@ -701,7 +701,6 @@ int hpfs_remove_dirent(struct inode *i, dnode_secno dno, struct hpfs_dirent *de, { struct dnode *dnode = qbh->data; dnode_secno down = 0; - int lock = 0; loff_t t; if (de->first || de->last) { hpfs_error(i->i_sb, "hpfs_remove_dirent: attempt to delete first or last dirent in dnode %08x", dno); @@ -710,11 +709,8 @@ int hpfs_remove_dirent(struct inode *i, dnode_secno dno, struct hpfs_dirent *de, } if (de->down) down = de_down_pointer(de); if (depth && (de->down || (de == dnode_first_de(dnode) && de_next_de(de)->last))) { - lock = 1; - hpfs_lock_creation(i->i_sb); if (hpfs_check_free_dnodes(i->i_sb, FREE_DNODES_DEL)) { hpfs_brelse4(qbh); - hpfs_unlock_creation(i->i_sb); return 2; } } @@ -727,11 +723,9 @@ int hpfs_remove_dirent(struct inode *i, dnode_secno dno, struct hpfs_dirent *de, dnode_secno a = move_to_top(i, down, dno); for_all_poss(i, hpfs_pos_subst, 5, t); if (a) delete_empty_dnode(i, a); - if (lock) hpfs_unlock_creation(i->i_sb); return !a; } delete_empty_dnode(i, dno); - if (lock) hpfs_unlock_creation(i->i_sb); return 0; } @@ -751,8 +745,8 @@ void hpfs_count_dnodes(struct super_block *s, dnode_secno dno, int *n_dnodes, ptr = 0; go_up: if (!(dnode = hpfs_map_dnode(s, dno, &qbh))) return; - if (hpfs_sb(s)->sb_chk) if (odno && odno != -1 && dnode->up != odno) - hpfs_error(s, "hpfs_count_dnodes: bad up pointer; dnode %08x, down %08x points to %08x", odno, dno, dnode->up); + if (hpfs_sb(s)->sb_chk) if (odno && odno != -1 && le32_to_cpu(dnode->up) != odno) + hpfs_error(s, "hpfs_count_dnodes: bad up pointer; dnode %08x, down %08x points to %08x", odno, dno, le32_to_cpu(dnode->up)); de = dnode_first_de(dnode); if (ptr) while(1) { if (de->down) if (de_down_pointer(de) == ptr) goto process_de; @@ -776,7 +770,7 @@ void hpfs_count_dnodes(struct super_block *s, dnode_secno dno, int *n_dnodes, if (!de->first && !de->last && n_items) (*n_items)++; if ((de = de_next_de(de)) < dnode_end_de(dnode)) goto next_de; ptr = dno; - dno = dnode->up; + dno = le32_to_cpu(dnode->up); if (dnode->root_dnode) { hpfs_brelse4(&qbh); return; @@ -824,8 +818,8 @@ dnode_secno hpfs_de_as_down_as_possible(struct super_block *s, dnode_secno dno) return d; if (!(de = map_nth_dirent(s, d, 1, &qbh, NULL))) return dno; if (hpfs_sb(s)->sb_chk) - if (up && ((struct dnode *)qbh.data)->up != up) - hpfs_error(s, "hpfs_de_as_down_as_possible: bad up pointer; dnode %08x, down %08x points to %08x", up, d, ((struct dnode *)qbh.data)->up); + if (up && le32_to_cpu(((struct dnode *)qbh.data)->up) != up) + hpfs_error(s, "hpfs_de_as_down_as_possible: bad up pointer; dnode %08x, down %08x points to %08x", up, d, le32_to_cpu(((struct dnode *)qbh.data)->up)); if (!de->down) { hpfs_brelse4(&qbh); return d; @@ -874,7 +868,7 @@ struct hpfs_dirent *map_pos_dirent(struct inode *inode, loff_t *posp, /* Going up */ if (dnode->root_dnode) goto bail; - if (!(up_dnode = hpfs_map_dnode(inode->i_sb, dnode->up, &qbh0))) + if (!(up_dnode = hpfs_map_dnode(inode->i_sb, le32_to_cpu(dnode->up), &qbh0))) goto bail; end_up_de = dnode_end_de(up_dnode); @@ -882,16 +876,16 @@ struct hpfs_dirent *map_pos_dirent(struct inode *inode, loff_t *posp, for (up_de = dnode_first_de(up_dnode); up_de < end_up_de; up_de = de_next_de(up_de)) { if (!(++c & 077)) hpfs_error(inode->i_sb, - "map_pos_dirent: pos crossed dnode boundary; dnode = %08x", dnode->up); + "map_pos_dirent: pos crossed dnode boundary; dnode = %08x", le32_to_cpu(dnode->up)); if (up_de->down && de_down_pointer(up_de) == dno) { - *posp = ((loff_t) dnode->up << 4) + c; + *posp = ((loff_t) le32_to_cpu(dnode->up) << 4) + c; hpfs_brelse4(&qbh0); return de; } } hpfs_error(inode->i_sb, "map_pos_dirent: pointer to dnode %08x not found in parent dnode %08x", - dno, dnode->up); + dno, le32_to_cpu(dnode->up)); hpfs_brelse4(&qbh0); bail: @@ -1017,17 +1011,17 @@ struct hpfs_dirent *map_fnode_dirent(struct super_block *s, fnode_secno fno, /*name2[15] = 0xff;*/ name1len = 15; name2len = 256; } - if (!(upf = hpfs_map_fnode(s, f->up, &bh))) { + if (!(upf = hpfs_map_fnode(s, le32_to_cpu(f->up), &bh))) { kfree(name2); return NULL; } if (!upf->dirflag) { brelse(bh); - hpfs_error(s, "fnode %08x has non-directory parent %08x", fno, f->up); + hpfs_error(s, "fnode %08x has non-directory parent %08x", fno, le32_to_cpu(f->up)); kfree(name2); return NULL; } - dno = upf->u.external[0].disk_secno; + dno = le32_to_cpu(upf->u.external[0].disk_secno); brelse(bh); go_down: downd = 0; @@ -1049,7 +1043,7 @@ struct hpfs_dirent *map_fnode_dirent(struct super_block *s, fnode_secno fno, return NULL; } next_de: - if (de->fnode == fno) { + if (le32_to_cpu(de->fnode) == fno) { kfree(name2); return de; } @@ -1065,7 +1059,7 @@ struct hpfs_dirent *map_fnode_dirent(struct super_block *s, fnode_secno fno, goto go_down; } f: - if (de->fnode == fno) { + if (le32_to_cpu(de->fnode) == fno) { kfree(name2); return de; } @@ -1074,7 +1068,7 @@ struct hpfs_dirent *map_fnode_dirent(struct super_block *s, fnode_secno fno, if ((de = de_next_de(de)) < de_end) goto next_de; if (d->root_dnode) goto not_found; downd = dno; - dno = d->up; + dno = le32_to_cpu(d->up); hpfs_brelse4(qbh); if (hpfs_sb(s)->sb_chk) if (hpfs_stop_cycles(s, downd, &d1, &d2, "map_fnode_dirent #2")) { diff --git a/fs/hpfs/ea.c b/fs/hpfs/ea.c index 45e53d972b4..d8b84d113c8 100644 --- a/fs/hpfs/ea.c +++ b/fs/hpfs/ea.c @@ -24,7 +24,7 @@ void hpfs_ea_ext_remove(struct super_block *s, secno a, int ano, unsigned len) } if (hpfs_ea_read(s, a, ano, pos, 4, ex)) return; if (ea->indirect) { - if (ea->valuelen != 8) { + if (ea_valuelen(ea) != 8) { hpfs_error(s, "ea->indirect set while ea->valuelen!=8, %s %08x, pos %08x", ano ? "anode" : "sectors", a, pos); return; @@ -33,7 +33,7 @@ void hpfs_ea_ext_remove(struct super_block *s, secno a, int ano, unsigned len) return; hpfs_ea_remove(s, ea_sec(ea), ea->anode, ea_len(ea)); } - pos += ea->namelen + ea->valuelen + 5; + pos += ea->namelen + ea_valuelen(ea) + 5; } if (!ano) hpfs_free_sectors(s, a, (len+511) >> 9); else { @@ -76,24 +76,24 @@ int hpfs_read_ea(struct super_block *s, struct fnode *fnode, char *key, unsigned pos; int ano, len; secno a; + char ex[4 + 255 + 1 + 8]; struct extended_attribute *ea; struct extended_attribute *ea_end = fnode_end_ea(fnode); for (ea = fnode_ea(fnode); ea < ea_end; ea = next_ea(ea)) if (!strcmp(ea->name, key)) { if (ea->indirect) goto indirect; - if (ea->valuelen >= size) + if (ea_valuelen(ea) >= size) return -EINVAL; - memcpy(buf, ea_data(ea), ea->valuelen); - buf[ea->valuelen] = 0; + memcpy(buf, ea_data(ea), ea_valuelen(ea)); + buf[ea_valuelen(ea)] = 0; return 0; } - a = fnode->ea_secno; - len = fnode->ea_size_l; + a = le32_to_cpu(fnode->ea_secno); + len = le32_to_cpu(fnode->ea_size_l); ano = fnode->ea_anode; pos = 0; while (pos < len) { - char ex[4 + 255 + 1 + 8]; ea = (struct extended_attribute *)ex; if (pos + 4 > len) { hpfs_error(s, "EAs don't end correctly, %s %08x, len %08x", @@ -106,14 +106,14 @@ int hpfs_read_ea(struct super_block *s, struct fnode *fnode, char *key, if (!strcmp(ea->name, key)) { if (ea->indirect) goto indirect; - if (ea->valuelen >= size) + if (ea_valuelen(ea) >= size) return -EINVAL; - if (hpfs_ea_read(s, a, ano, pos + 4 + ea->namelen + 1, ea->valuelen, buf)) + if (hpfs_ea_read(s, a, ano, pos + 4 + ea->namelen + 1, ea_valuelen(ea), buf)) return -EIO; - buf[ea->valuelen] = 0; + buf[ea_valuelen(ea)] = 0; return 0; } - pos += ea->namelen + ea->valuelen + 5; + pos += ea->namelen + ea_valuelen(ea) + 5; } return -ENOENT; indirect: @@ -138,16 +138,16 @@ char *hpfs_get_ea(struct super_block *s, struct fnode *fnode, char *key, int *si if (!strcmp(ea->name, key)) { if (ea->indirect) return get_indirect_ea(s, ea->anode, ea_sec(ea), *size = ea_len(ea)); - if (!(ret = kmalloc((*size = ea->valuelen) + 1, GFP_NOFS))) { + if (!(ret = kmalloc((*size = ea_valuelen(ea)) + 1, GFP_NOFS))) { printk("HPFS: out of memory for EA\n"); return NULL; } - memcpy(ret, ea_data(ea), ea->valuelen); - ret[ea->valuelen] = 0; + memcpy(ret, ea_data(ea), ea_valuelen(ea)); + ret[ea_valuelen(ea)] = 0; return ret; } - a = fnode->ea_secno; - len = fnode->ea_size_l; + a = le32_to_cpu(fnode->ea_secno); + len = le32_to_cpu(fnode->ea_size_l); ano = fnode->ea_anode; pos = 0; while (pos < len) { @@ -164,18 +164,18 @@ char *hpfs_get_ea(struct super_block *s, struct fnode *fnode, char *key, int *si if (!strcmp(ea->name, key)) { if (ea->indirect) return get_indirect_ea(s, ea->anode, ea_sec(ea), *size = ea_len(ea)); - if (!(ret = kmalloc((*size = ea->valuelen) + 1, GFP_NOFS))) { + if (!(ret = kmalloc((*size = ea_valuelen(ea)) + 1, GFP_NOFS))) { printk("HPFS: out of memory for EA\n"); return NULL; } - if (hpfs_ea_read(s, a, ano, pos + 4 + ea->namelen + 1, ea->valuelen, ret)) { + if (hpfs_ea_read(s, a, ano, pos + 4 + ea->namelen + 1, ea_valuelen(ea), ret)) { kfree(ret); return NULL; } - ret[ea->valuelen] = 0; + ret[ea_valuelen(ea)] = 0; return ret; } - pos += ea->namelen + ea->valuelen + 5; + pos += ea->namelen + ea_valuelen(ea) + 5; } return NULL; } @@ -202,13 +202,13 @@ void hpfs_set_ea(struct inode *inode, struct fnode *fnode, const char *key, if (ea->indirect) { if (ea_len(ea) == size) set_indirect_ea(s, ea->anode, ea_sec(ea), data, size); - } else if (ea->valuelen == size) { + } else if (ea_valuelen(ea) == size) { memcpy(ea_data(ea), data, size); } return; } - a = fnode->ea_secno; - len = fnode->ea_size_l; + a = le32_to_cpu(fnode->ea_secno); + len = le32_to_cpu(fnode->ea_size_l); ano = fnode->ea_anode; pos = 0; while (pos < len) { @@ -228,68 +228,70 @@ void hpfs_set_ea(struct inode *inode, struct fnode *fnode, const char *key, set_indirect_ea(s, ea->anode, ea_sec(ea), data, size); } else { - if (ea->valuelen == size) + if (ea_valuelen(ea) == size) hpfs_ea_write(s, a, ano, pos + 4 + ea->namelen + 1, size, data); } return; } - pos += ea->namelen + ea->valuelen + 5; + pos += ea->namelen + ea_valuelen(ea) + 5; } - if (!fnode->ea_offs) { - /*if (fnode->ea_size_s) { + if (!le16_to_cpu(fnode->ea_offs)) { + /*if (le16_to_cpu(fnode->ea_size_s)) { hpfs_error(s, "fnode %08x: ea_size_s == %03x, ea_offs == 0", - inode->i_ino, fnode->ea_size_s); + inode->i_ino, le16_to_cpu(fnode->ea_size_s)); return; }*/ - fnode->ea_offs = 0xc4; + fnode->ea_offs = cpu_to_le16(0xc4); } - if (fnode->ea_offs < 0xc4 || fnode->ea_offs + fnode->acl_size_s + fnode->ea_size_s > 0x200) { + if (le16_to_cpu(fnode->ea_offs) < 0xc4 || le16_to_cpu(fnode->ea_offs) + le16_to_cpu(fnode->acl_size_s) + le16_to_cpu(fnode->ea_size_s) > 0x200) { hpfs_error(s, "fnode %08lx: ea_offs == %03x, ea_size_s == %03x", (unsigned long)inode->i_ino, - fnode->ea_offs, fnode->ea_size_s); + le32_to_cpu(fnode->ea_offs), le16_to_cpu(fnode->ea_size_s)); return; } - if ((fnode->ea_size_s || !fnode->ea_size_l) && - fnode->ea_offs + fnode->acl_size_s + fnode->ea_size_s + strlen(key) + size + 5 <= 0x200) { + if ((le16_to_cpu(fnode->ea_size_s) || !le32_to_cpu(fnode->ea_size_l)) && + le16_to_cpu(fnode->ea_offs) + le16_to_cpu(fnode->acl_size_s) + le16_to_cpu(fnode->ea_size_s) + strlen(key) + size + 5 <= 0x200) { ea = fnode_end_ea(fnode); *(char *)ea = 0; ea->namelen = strlen(key); - ea->valuelen = size; + ea->valuelen_lo = size; + ea->valuelen_hi = size >> 8; strcpy(ea->name, key); memcpy(ea_data(ea), data, size); - fnode->ea_size_s += strlen(key) + size + 5; + fnode->ea_size_s = cpu_to_le16(le16_to_cpu(fnode->ea_size_s) + strlen(key) + size + 5); goto ret; } /* Most the code here is 99.9993422% unused. I hope there are no bugs. But what .. HPFS.IFS has also bugs in ea management. */ - if (fnode->ea_size_s && !fnode->ea_size_l) { + if (le16_to_cpu(fnode->ea_size_s) && !le32_to_cpu(fnode->ea_size_l)) { secno n; struct buffer_head *bh; char *data; - if (!(n = hpfs_alloc_sector(s, fno, 1, 0, 1))) return; + if (!(n = hpfs_alloc_sector(s, fno, 1, 0))) return; if (!(data = hpfs_get_sector(s, n, &bh))) { hpfs_free_sectors(s, n, 1); return; } - memcpy(data, fnode_ea(fnode), fnode->ea_size_s); - fnode->ea_size_l = fnode->ea_size_s; - fnode->ea_size_s = 0; - fnode->ea_secno = n; - fnode->ea_anode = 0; + memcpy(data, fnode_ea(fnode), le16_to_cpu(fnode->ea_size_s)); + fnode->ea_size_l = cpu_to_le32(le16_to_cpu(fnode->ea_size_s)); + fnode->ea_size_s = cpu_to_le16(0); + fnode->ea_secno = cpu_to_le32(n); + fnode->ea_anode = cpu_to_le32(0); mark_buffer_dirty(bh); brelse(bh); } - pos = fnode->ea_size_l + 5 + strlen(key) + size; - len = (fnode->ea_size_l + 511) >> 9; + pos = le32_to_cpu(fnode->ea_size_l) + 5 + strlen(key) + size; + len = (le32_to_cpu(fnode->ea_size_l) + 511) >> 9; if (pos >= 30000) goto bail; while (((pos + 511) >> 9) > len) { if (!len) { - if (!(fnode->ea_secno = hpfs_alloc_sector(s, fno, 1, 0, 1))) - goto bail; + secno q = hpfs_alloc_sector(s, fno, 1, 0); + if (!q) goto bail; + fnode->ea_secno = cpu_to_le32(q); fnode->ea_anode = 0; len++; } else if (!fnode->ea_anode) { - if (hpfs_alloc_if_possible(s, fnode->ea_secno + len)) { + if (hpfs_alloc_if_possible(s, le32_to_cpu(fnode->ea_secno) + len)) { len++; } else { /* Aargh... don't know how to create ea anodes :-( */ @@ -298,26 +300,26 @@ void hpfs_set_ea(struct inode *inode, struct fnode *fnode, const char *key, anode_secno a_s; if (!(anode = hpfs_alloc_anode(s, fno, &a_s, &bh))) goto bail; - anode->up = fno; + anode->up = cpu_to_le32(fno); anode->btree.fnode_parent = 1; anode->btree.n_free_nodes--; anode->btree.n_used_nodes++; - anode->btree.first_free += 12; - anode->u.external[0].disk_secno = fnode->ea_secno; - anode->u.external[0].file_secno = 0; - anode->u.external[0].length = len; + anode->btree.first_free = cpu_to_le16(le16_to_cpu(anode->btree.first_free) + 12); + anode->u.external[0].disk_secno = cpu_to_le32(le32_to_cpu(fnode->ea_secno)); + anode->u.external[0].file_secno = cpu_to_le32(0); + anode->u.external[0].length = cpu_to_le32(len); mark_buffer_dirty(bh); brelse(bh); fnode->ea_anode = 1; - fnode->ea_secno = a_s;*/ + fnode->ea_secno = cpu_to_le32(a_s);*/ secno new_sec; int i; - if (!(new_sec = hpfs_alloc_sector(s, fno, 1, 1 - ((pos + 511) >> 9), 1))) + if (!(new_sec = hpfs_alloc_sector(s, fno, 1, 1 - ((pos + 511) >> 9)))) goto bail; for (i = 0; i < len; i++) { struct buffer_head *bh1, *bh2; void *b1, *b2; - if (!(b1 = hpfs_map_sector(s, fnode->ea_secno + i, &bh1, len - i - 1))) { + if (!(b1 = hpfs_map_sector(s, le32_to_cpu(fnode->ea_secno) + i, &bh1, len - i - 1))) { hpfs_free_sectors(s, new_sec, (pos + 511) >> 9); goto bail; } @@ -331,13 +333,13 @@ void hpfs_set_ea(struct inode *inode, struct fnode *fnode, const char *key, mark_buffer_dirty(bh2); brelse(bh2); } - hpfs_free_sectors(s, fnode->ea_secno, len); - fnode->ea_secno = new_sec; + hpfs_free_sectors(s, le32_to_cpu(fnode->ea_secno), len); + fnode->ea_secno = cpu_to_le32(new_sec); len = (pos + 511) >> 9; } } if (fnode->ea_anode) { - if (hpfs_add_sector_to_btree(s, fnode->ea_secno, + if (hpfs_add_sector_to_btree(s, le32_to_cpu(fnode->ea_secno), 0, len) != -1) { len++; } else { @@ -349,17 +351,17 @@ void hpfs_set_ea(struct inode *inode, struct fnode *fnode, const char *key, h[1] = strlen(key); h[2] = size & 0xff; h[3] = size >> 8; - if (hpfs_ea_write(s, fnode->ea_secno, fnode->ea_anode, fnode->ea_size_l, 4, h)) goto bail; - if (hpfs_ea_write(s, fnode->ea_secno, fnode->ea_anode, fnode->ea_size_l + 4, h[1] + 1, key)) goto bail; - if (hpfs_ea_write(s, fnode->ea_secno, fnode->ea_anode, fnode->ea_size_l + 5 + h[1], size, data)) goto bail; - fnode->ea_size_l = pos; + if (hpfs_ea_write(s, le32_to_cpu(fnode->ea_secno), fnode->ea_anode, le32_to_cpu(fnode->ea_size_l), 4, h)) goto bail; + if (hpfs_ea_write(s, le32_to_cpu(fnode->ea_secno), fnode->ea_anode, le32_to_cpu(fnode->ea_size_l) + 4, h[1] + 1, key)) goto bail; + if (hpfs_ea_write(s, le32_to_cpu(fnode->ea_secno), fnode->ea_anode, le32_to_cpu(fnode->ea_size_l) + 5 + h[1], size, data)) goto bail; + fnode->ea_size_l = cpu_to_le32(pos); ret: hpfs_i(inode)->i_ea_size += 5 + strlen(key) + size; return; bail: - if (fnode->ea_secno) - if (fnode->ea_anode) hpfs_truncate_btree(s, fnode->ea_secno, 1, (fnode->ea_size_l + 511) >> 9); - else hpfs_free_sectors(s, fnode->ea_secno + ((fnode->ea_size_l + 511) >> 9), len - ((fnode->ea_size_l + 511) >> 9)); - else fnode->ea_secno = fnode->ea_size_l = 0; + if (le32_to_cpu(fnode->ea_secno)) + if (fnode->ea_anode) hpfs_truncate_btree(s, le32_to_cpu(fnode->ea_secno), 1, (le32_to_cpu(fnode->ea_size_l) + 511) >> 9); + else hpfs_free_sectors(s, le32_to_cpu(fnode->ea_secno) + ((le32_to_cpu(fnode->ea_size_l) + 511) >> 9), len - ((le32_to_cpu(fnode->ea_size_l) + 511) >> 9)); + else fnode->ea_secno = fnode->ea_size_l = cpu_to_le32(0); } diff --git a/fs/hpfs/file.c b/fs/hpfs/file.c index 9b9eb6933e4..89c500ee521 100644 --- a/fs/hpfs/file.c +++ b/fs/hpfs/file.c @@ -20,8 +20,8 @@ static int hpfs_file_release(struct inode *inode, struct file *file) int hpfs_file_fsync(struct file *file, int datasync) { - /*return file_fsync(file, datasync);*/ - return 0; /* Don't fsync :-) */ + struct inode *inode = file->f_mapping->host; + return sync_blockdev(inode->i_sb->s_bdev); } /* @@ -48,38 +48,46 @@ static secno hpfs_bmap(struct inode *inode, unsigned file_secno) static void hpfs_truncate(struct inode *i) { if (IS_IMMUTABLE(i)) return /*-EPERM*/; - hpfs_lock(i->i_sb); + hpfs_lock_assert(i->i_sb); + hpfs_i(i)->i_n_secs = 0; i->i_blocks = 1 + ((i->i_size + 511) >> 9); hpfs_i(i)->mmu_private = i->i_size; hpfs_truncate_btree(i->i_sb, i->i_ino, 1, ((i->i_size + 511) >> 9)); hpfs_write_inode(i); hpfs_i(i)->i_n_secs = 0; - hpfs_unlock(i->i_sb); } static int hpfs_get_block(struct inode *inode, sector_t iblock, struct buffer_head *bh_result, int create) { + int r; secno s; + hpfs_lock(inode->i_sb); s = hpfs_bmap(inode, iblock); if (s) { map_bh(bh_result, inode->i_sb, s); - return 0; + goto ret_0; } - if (!create) return 0; + if (!create) goto ret_0; if (iblock<<9 != hpfs_i(inode)->mmu_private) { BUG(); - return -EIO; + r = -EIO; + goto ret_r; } if ((s = hpfs_add_sector_to_btree(inode->i_sb, inode->i_ino, 1, inode->i_blocks - 1)) == -1) { hpfs_truncate_btree(inode->i_sb, inode->i_ino, 1, inode->i_blocks - 1); - return -ENOSPC; + r = -ENOSPC; + goto ret_r; } inode->i_blocks++; hpfs_i(inode)->mmu_private += 512; set_buffer_new(bh_result); map_bh(bh_result, inode->i_sb, s); - return 0; + ret_0: + r = 0; + ret_r: + hpfs_unlock(inode->i_sb); + return r; } static int hpfs_writepage(struct page *page, struct writeback_control *wbc) @@ -130,8 +138,11 @@ static ssize_t hpfs_file_write(struct file *file, const char __user *buf, ssize_t retval; retval = do_sync_write(file, buf, count, ppos); - if (retval > 0) + if (retval > 0) { + hpfs_lock(file->f_path.dentry->d_sb); hpfs_i(file->f_path.dentry->d_inode)->i_dirty = 1; + hpfs_unlock(file->f_path.dentry->d_sb); + } return retval; } diff --git a/fs/hpfs/hpfs.h b/fs/hpfs/hpfs.h index 0e84c73cd9c..8b0650aae32 100644 --- a/fs/hpfs/hpfs.h +++ b/fs/hpfs/hpfs.h @@ -19,9 +19,13 @@ For definitive information on HPFS, ask somebody else -- this is guesswork. There are certain to be many mistakes. */ +#if !defined(__LITTLE_ENDIAN) && !defined(__BIG_ENDIAN) +#error unknown endian +#endif + /* Notation */ -typedef unsigned secno; /* sector number, partition relative */ +typedef u32 secno; /* sector number, partition relative */ typedef secno dnode_secno; /* sector number of a dnode */ typedef secno fnode_secno; /* sector number of an fnode */ @@ -38,28 +42,28 @@ typedef u32 time32_t; /* 32-bit time_t type */ struct hpfs_boot_block { - unsigned char jmp[3]; - unsigned char oem_id[8]; - unsigned char bytes_per_sector[2]; /* 512 */ - unsigned char sectors_per_cluster; - unsigned char n_reserved_sectors[2]; - unsigned char n_fats; - unsigned char n_rootdir_entries[2]; - unsigned char n_sectors_s[2]; - unsigned char media_byte; - unsigned short sectors_per_fat; - unsigned short sectors_per_track; - unsigned short heads_per_cyl; - unsigned int n_hidden_sectors; - unsigned int n_sectors_l; /* size of partition */ - unsigned char drive_number; - unsigned char mbz; - unsigned char sig_28h; /* 28h */ - unsigned char vol_serno[4]; - unsigned char vol_label[11]; - unsigned char sig_hpfs[8]; /* "HPFS " */ - unsigned char pad[448]; - unsigned short magic; /* aa55 */ + u8 jmp[3]; + u8 oem_id[8]; + u8 bytes_per_sector[2]; /* 512 */ + u8 sectors_per_cluster; + u8 n_reserved_sectors[2]; + u8 n_fats; + u8 n_rootdir_entries[2]; + u8 n_sectors_s[2]; + u8 media_byte; + u16 sectors_per_fat; + u16 sectors_per_track; + u16 heads_per_cyl; + u32 n_hidden_sectors; + u32 n_sectors_l; /* size of partition */ + u8 drive_number; + u8 mbz; + u8 sig_28h; /* 28h */ + u8 vol_serno[4]; + u8 vol_label[11]; + u8 sig_hpfs[8]; /* "HPFS " */ + u8 pad[448]; + u16 magic; /* aa55 */ }; @@ -71,31 +75,29 @@ struct hpfs_boot_block struct hpfs_super_block { - unsigned magic; /* f995 e849 */ - unsigned magic1; /* fa53 e9c5, more magic? */ - /*unsigned huh202;*/ /* ?? 202 = N. of B. in 1.00390625 S.*/ - char version; /* version of a filesystem usually 2 */ - char funcversion; /* functional version - oldest version + u32 magic; /* f995 e849 */ + u32 magic1; /* fa53 e9c5, more magic? */ + u8 version; /* version of a filesystem usually 2 */ + u8 funcversion; /* functional version - oldest version of filesystem that can understand this disk */ - unsigned short int zero; /* 0 */ + u16 zero; /* 0 */ fnode_secno root; /* fnode of root directory */ secno n_sectors; /* size of filesystem */ - unsigned n_badblocks; /* number of bad blocks */ + u32 n_badblocks; /* number of bad blocks */ secno bitmaps; /* pointers to free space bit maps */ - unsigned zero1; /* 0 */ + u32 zero1; /* 0 */ secno badblocks; /* bad block list */ - unsigned zero3; /* 0 */ + u32 zero3; /* 0 */ time32_t last_chkdsk; /* date last checked, 0 if never */ - /*unsigned zero4;*/ /* 0 */ - time32_t last_optimize; /* date last optimized, 0 if never */ + time32_t last_optimize; /* date last optimized, 0 if never */ secno n_dir_band; /* number of sectors in dir band */ secno dir_band_start; /* first sector in dir band */ secno dir_band_end; /* last sector in dir band */ secno dir_band_bitmap; /* free space map, 1 dnode per bit */ - char volume_name[32]; /* not used */ + u8 volume_name[32]; /* not used */ secno user_id_table; /* 8 preallocated sectors - user id */ - unsigned zero6[103]; /* 0 */ + u32 zero6[103]; /* 0 */ }; @@ -107,44 +109,65 @@ struct hpfs_super_block struct hpfs_spare_block { - unsigned magic; /* f991 1849 */ - unsigned magic1; /* fa52 29c5, more magic? */ - - unsigned dirty: 1; /* 0 clean, 1 "improperly stopped" */ - /*unsigned flag1234: 4;*/ /* unknown flags */ - unsigned sparedir_used: 1; /* spare dirblks used */ - unsigned hotfixes_used: 1; /* hotfixes used */ - unsigned bad_sector: 1; /* bad sector, corrupted disk (???) */ - unsigned bad_bitmap: 1; /* bad bitmap */ - unsigned fast: 1; /* partition was fast formatted */ - unsigned old_wrote: 1; /* old version wrote to partion */ - unsigned old_wrote_1: 1; /* old version wrote to partion (?) */ - unsigned install_dasd_limits: 1; /* HPFS386 flags */ - unsigned resynch_dasd_limits: 1; - unsigned dasd_limits_operational: 1; - unsigned multimedia_active: 1; - unsigned dce_acls_active: 1; - unsigned dasd_limits_dirty: 1; - unsigned flag67: 2; - unsigned char mm_contlgulty; - unsigned char unused; + u32 magic; /* f991 1849 */ + u32 magic1; /* fa52 29c5, more magic? */ + +#ifdef __LITTLE_ENDIAN + u8 dirty: 1; /* 0 clean, 1 "improperly stopped" */ + u8 sparedir_used: 1; /* spare dirblks used */ + u8 hotfixes_used: 1; /* hotfixes used */ + u8 bad_sector: 1; /* bad sector, corrupted disk (???) */ + u8 bad_bitmap: 1; /* bad bitmap */ + u8 fast: 1; /* partition was fast formatted */ + u8 old_wrote: 1; /* old version wrote to partion */ + u8 old_wrote_1: 1; /* old version wrote to partion (?) */ +#else + u8 old_wrote_1: 1; /* old version wrote to partion (?) */ + u8 old_wrote: 1; /* old version wrote to partion */ + u8 fast: 1; /* partition was fast formatted */ + u8 bad_bitmap: 1; /* bad bitmap */ + u8 bad_sector: 1; /* bad sector, corrupted disk (???) */ + u8 hotfixes_used: 1; /* hotfixes used */ + u8 sparedir_used: 1; /* spare dirblks used */ + u8 dirty: 1; /* 0 clean, 1 "improperly stopped" */ +#endif + +#ifdef __LITTLE_ENDIAN + u8 install_dasd_limits: 1; /* HPFS386 flags */ + u8 resynch_dasd_limits: 1; + u8 dasd_limits_operational: 1; + u8 multimedia_active: 1; + u8 dce_acls_active: 1; + u8 dasd_limits_dirty: 1; + u8 flag67: 2; +#else + u8 flag67: 2; + u8 dasd_limits_dirty: 1; + u8 dce_acls_active: 1; + u8 multimedia_active: 1; + u8 dasd_limits_operational: 1; + u8 resynch_dasd_limits: 1; + u8 install_dasd_limits: 1; /* HPFS386 flags */ +#endif + + u8 mm_contlgulty; + u8 unused; secno hotfix_map; /* info about remapped bad sectors */ - unsigned n_spares_used; /* number of hotfixes */ - unsigned n_spares; /* number of spares in hotfix map */ - unsigned n_dnode_spares_free; /* spare dnodes unused */ - unsigned n_dnode_spares; /* length of spare_dnodes[] list, + u32 n_spares_used; /* number of hotfixes */ + u32 n_spares; /* number of spares in hotfix map */ + u32 n_dnode_spares_free; /* spare dnodes unused */ + u32 n_dnode_spares; /* length of spare_dnodes[] list, follows in this block*/ secno code_page_dir; /* code page directory block */ - unsigned n_code_pages; /* number of code pages */ - /*unsigned large_numbers[2];*/ /* ?? */ - unsigned super_crc; /* on HPFS386 and LAN Server this is + u32 n_code_pages; /* number of code pages */ + u32 super_crc; /* on HPFS386 and LAN Server this is checksum of superblock, on normal OS/2 unused */ - unsigned spare_crc; /* on HPFS386 checksum of spareblock */ - unsigned zero1[15]; /* unused */ + u32 spare_crc; /* on HPFS386 checksum of spareblock */ + u32 zero1[15]; /* unused */ dnode_secno spare_dnodes[100]; /* emergency free dnode list */ - unsigned zero2[1]; /* room for more? */ + u32 zero2[1]; /* room for more? */ }; /* The bad block list is 4 sectors long. The first word must be zero, @@ -179,18 +202,18 @@ struct hpfs_spare_block struct code_page_directory { - unsigned magic; /* 4945 21f7 */ - unsigned n_code_pages; /* number of pointers following */ - unsigned zero1[2]; + u32 magic; /* 4945 21f7 */ + u32 n_code_pages; /* number of pointers following */ + u32 zero1[2]; struct { - unsigned short ix; /* index */ - unsigned short code_page_number; /* code page number */ - unsigned bounds; /* matches corresponding word + u16 ix; /* index */ + u16 code_page_number; /* code page number */ + u32 bounds; /* matches corresponding word in data block */ secno code_page_data; /* sector number of a code_page_data containing c.p. array */ - unsigned short index; /* index in c.p. array in that sector*/ - unsigned short unknown; /* some unknown value; usually 0; + u16 index; /* index in c.p. array in that sector*/ + u16 unknown; /* some unknown value; usually 0; 2 in Japanese version */ } array[31]; /* unknown length */ }; @@ -201,21 +224,21 @@ struct code_page_directory struct code_page_data { - unsigned magic; /* 8945 21f7 */ - unsigned n_used; /* # elements used in c_p_data[] */ - unsigned bounds[3]; /* looks a bit like + u32 magic; /* 8945 21f7 */ + u32 n_used; /* # elements used in c_p_data[] */ + u32 bounds[3]; /* looks a bit like (beg1,end1), (beg2,end2) one byte each */ - unsigned short offs[3]; /* offsets from start of sector + u16 offs[3]; /* offsets from start of sector to start of c_p_data[ix] */ struct { - unsigned short ix; /* index */ - unsigned short code_page_number; /* code page number */ - unsigned short unknown; /* the same as in cp directory */ - unsigned char map[128]; /* upcase table for chars 80..ff */ - unsigned short zero2; + u16 ix; /* index */ + u16 code_page_number; /* code page number */ + u16 unknown; /* the same as in cp directory */ + u8 map[128]; /* upcase table for chars 80..ff */ + u16 zero2; } code_page[3]; - unsigned char incognita[78]; + u8 incognita[78]; }; @@ -255,50 +278,84 @@ struct code_page_data #define DNODE_MAGIC 0x77e40aae struct dnode { - unsigned magic; /* 77e4 0aae */ - unsigned first_free; /* offset from start of dnode to + u32 magic; /* 77e4 0aae */ + u32 first_free; /* offset from start of dnode to first free dir entry */ - unsigned root_dnode:1; /* Is it root dnode? */ - unsigned increment_me:31; /* some kind of activity counter? - Neither HPFS.IFS nor CHKDSK cares +#ifdef __LITTLE_ENDIAN + u8 root_dnode: 1; /* Is it root dnode? */ + u8 increment_me: 7; /* some kind of activity counter? */ + /* Neither HPFS.IFS nor CHKDSK cares + if you change this word */ +#else + u8 increment_me: 7; /* some kind of activity counter? */ + /* Neither HPFS.IFS nor CHKDSK cares if you change this word */ + u8 root_dnode: 1; /* Is it root dnode? */ +#endif + u8 increment_me2[3]; secno up; /* (root dnode) directory's fnode (nonroot) parent dnode */ dnode_secno self; /* pointer to this dnode */ - unsigned char dirent[2028]; /* one or more dirents */ + u8 dirent[2028]; /* one or more dirents */ }; struct hpfs_dirent { - unsigned short length; /* offset to next dirent */ - unsigned first: 1; /* set on phony ^A^A (".") entry */ - unsigned has_acl: 1; - unsigned down: 1; /* down pointer present (after name) */ - unsigned last: 1; /* set on phony \377 entry */ - unsigned has_ea: 1; /* entry has EA */ - unsigned has_xtd_perm: 1; /* has extended perm list (???) */ - unsigned has_explicit_acl: 1; - unsigned has_needea: 1; /* ?? some EA has NEEDEA set + u16 length; /* offset to next dirent */ + +#ifdef __LITTLE_ENDIAN + u8 first: 1; /* set on phony ^A^A (".") entry */ + u8 has_acl: 1; + u8 down: 1; /* down pointer present (after name) */ + u8 last: 1; /* set on phony \377 entry */ + u8 has_ea: 1; /* entry has EA */ + u8 has_xtd_perm: 1; /* has extended perm list (???) */ + u8 has_explicit_acl: 1; + u8 has_needea: 1; /* ?? some EA has NEEDEA set + I have no idea why this is + interesting in a dir entry */ +#else + u8 has_needea: 1; /* ?? some EA has NEEDEA set I have no idea why this is interesting in a dir entry */ - unsigned read_only: 1; /* dos attrib */ - unsigned hidden: 1; /* dos attrib */ - unsigned system: 1; /* dos attrib */ - unsigned flag11: 1; /* would be volume label dos attrib */ - unsigned directory: 1; /* dos attrib */ - unsigned archive: 1; /* dos attrib */ - unsigned not_8x3: 1; /* name is not 8.3 */ - unsigned flag15: 1; + u8 has_explicit_acl: 1; + u8 has_xtd_perm: 1; /* has extended perm list (???) */ + u8 has_ea: 1; /* entry has EA */ + u8 last: 1; /* set on phony \377 entry */ + u8 down: 1; /* down pointer present (after name) */ + u8 has_acl: 1; + u8 first: 1; /* set on phony ^A^A (".") entry */ +#endif + +#ifdef __LITTLE_ENDIAN + u8 read_only: 1; /* dos attrib */ + u8 hidden: 1; /* dos attrib */ + u8 system: 1; /* dos attrib */ + u8 flag11: 1; /* would be volume label dos attrib */ + u8 directory: 1; /* dos attrib */ + u8 archive: 1; /* dos attrib */ + u8 not_8x3: 1; /* name is not 8.3 */ + u8 flag15: 1; +#else + u8 flag15: 1; + u8 not_8x3: 1; /* name is not 8.3 */ + u8 archive: 1; /* dos attrib */ + u8 directory: 1; /* dos attrib */ + u8 flag11: 1; /* would be volume label dos attrib */ + u8 system: 1; /* dos attrib */ + u8 hidden: 1; /* dos attrib */ + u8 read_only: 1; /* dos attrib */ +#endif + fnode_secno fnode; /* fnode giving allocation info */ time32_t write_date; /* mtime */ - unsigned file_size; /* file length, bytes */ + u32 file_size; /* file length, bytes */ time32_t read_date; /* atime */ time32_t creation_date; /* ctime */ - unsigned ea_size; /* total EA length, bytes */ - unsigned char no_of_acls : 3; /* number of ACL's */ - unsigned char reserver : 5; - unsigned char ix; /* code page index (of filename), see + u32 ea_size; /* total EA length, bytes */ + u8 no_of_acls; /* number of ACL's (low 3 bits) */ + u8 ix; /* code page index (of filename), see struct code_page_data */ - unsigned char namelen, name[1]; /* file name */ + u8 namelen, name[1]; /* file name */ /* dnode_secno down; btree down pointer, if present, follows name on next word boundary, or maybe it precedes next dirent, which is on a word boundary. */ @@ -318,38 +375,50 @@ struct hpfs_dirent { struct bplus_leaf_node { - unsigned file_secno; /* first file sector in extent */ - unsigned length; /* length, sectors */ + u32 file_secno; /* first file sector in extent */ + u32 length; /* length, sectors */ secno disk_secno; /* first corresponding disk sector */ }; struct bplus_internal_node { - unsigned file_secno; /* subtree maps sectors < this */ + u32 file_secno; /* subtree maps sectors < this */ anode_secno down; /* pointer to subtree */ }; struct bplus_header { - unsigned hbff: 1; /* high bit of first free entry offset */ - unsigned flag1: 1; - unsigned flag2: 1; - unsigned flag3: 1; - unsigned flag4: 1; - unsigned fnode_parent: 1; /* ? we're pointed to by an fnode, +#ifdef __LITTLE_ENDIAN + u8 hbff: 1; /* high bit of first free entry offset */ + u8 flag1234: 4; + u8 fnode_parent: 1; /* ? we're pointed to by an fnode, the data btree or some ea or the main ea bootage pointer ea_secno */ /* also can get set in fnodes, which may be a chkdsk glitch or may mean this bit is irrelevant in fnodes, or this interpretation is all wet */ - unsigned binary_search: 1; /* suggest binary search (unused) */ - unsigned internal: 1; /* 1 -> (internal) tree of anodes + u8 binary_search: 1; /* suggest binary search (unused) */ + u8 internal: 1; /* 1 -> (internal) tree of anodes + 0 -> (leaf) list of extents */ +#else + u8 internal: 1; /* 1 -> (internal) tree of anodes 0 -> (leaf) list of extents */ - unsigned char fill[3]; - unsigned char n_free_nodes; /* free nodes in following array */ - unsigned char n_used_nodes; /* used nodes in following array */ - unsigned short first_free; /* offset from start of header to + u8 binary_search: 1; /* suggest binary search (unused) */ + u8 fnode_parent: 1; /* ? we're pointed to by an fnode, + the data btree or some ea or the + main ea bootage pointer ea_secno */ + /* also can get set in fnodes, which + may be a chkdsk glitch or may mean + this bit is irrelevant in fnodes, + or this interpretation is all wet */ + u8 flag1234: 4; + u8 hbff: 1; /* high bit of first free entry offset */ +#endif + u8 fill[3]; + u8 n_free_nodes; /* free nodes in following array */ + u8 n_used_nodes; /* used nodes in following array */ + u16 first_free; /* offset from start of header to first free node in array */ union { struct bplus_internal_node internal[0]; /* (internal) 2-word entries giving @@ -369,37 +438,38 @@ struct bplus_header struct fnode { - unsigned magic; /* f7e4 0aae */ - unsigned zero1[2]; /* read history */ - unsigned char len, name[15]; /* true length, truncated name */ + u32 magic; /* f7e4 0aae */ + u32 zero1[2]; /* read history */ + u8 len, name[15]; /* true length, truncated name */ fnode_secno up; /* pointer to file's directory fnode */ - /*unsigned zero2[3];*/ secno acl_size_l; secno acl_secno; - unsigned short acl_size_s; - char acl_anode; - char zero2; /* history bit count */ - unsigned ea_size_l; /* length of disk-resident ea's */ + u16 acl_size_s; + u8 acl_anode; + u8 zero2; /* history bit count */ + u32 ea_size_l; /* length of disk-resident ea's */ secno ea_secno; /* first sector of disk-resident ea's*/ - unsigned short ea_size_s; /* length of fnode-resident ea's */ - - unsigned flag0: 1; - unsigned ea_anode: 1; /* 1 -> ea_secno is an anode */ - unsigned flag2: 1; - unsigned flag3: 1; - unsigned flag4: 1; - unsigned flag5: 1; - unsigned flag6: 1; - unsigned flag7: 1; - unsigned dirflag: 1; /* 1 -> directory. first & only extent + u16 ea_size_s; /* length of fnode-resident ea's */ + +#ifdef __LITTLE_ENDIAN + u8 flag0: 1; + u8 ea_anode: 1; /* 1 -> ea_secno is an anode */ + u8 flag234567: 6; +#else + u8 flag234567: 6; + u8 ea_anode: 1; /* 1 -> ea_secno is an anode */ + u8 flag0: 1; +#endif + +#ifdef __LITTLE_ENDIAN + u8 dirflag: 1; /* 1 -> directory. first & only extent points to dnode. */ - unsigned flag9: 1; - unsigned flag10: 1; - unsigned flag11: 1; - unsigned flag12: 1; - unsigned flag13: 1; - unsigned flag14: 1; - unsigned flag15: 1; + u8 flag9012345: 7; +#else + u8 flag9012345: 7; + u8 dirflag: 1; /* 1 -> directory. first & only extent + points to dnode. */ +#endif struct bplus_header btree; /* b+ tree, 8 extents or 12 subtrees */ union { @@ -407,17 +477,16 @@ struct fnode struct bplus_internal_node internal[12]; } u; - unsigned file_size; /* file length, bytes */ - unsigned n_needea; /* number of EA's with NEEDEA set */ - char user_id[16]; /* unused */ - unsigned short ea_offs; /* offset from start of fnode + u32 file_size; /* file length, bytes */ + u32 n_needea; /* number of EA's with NEEDEA set */ + u8 user_id[16]; /* unused */ + u16 ea_offs; /* offset from start of fnode to first fnode-resident ea */ - char dasd_limit_treshhold; - char dasd_limit_delta; - unsigned dasd_limit; - unsigned dasd_usage; - /*unsigned zero5[2];*/ - unsigned char ea[316]; /* zero or more EA's, packed together + u8 dasd_limit_treshhold; + u8 dasd_limit_delta; + u32 dasd_limit; + u32 dasd_usage; + u8 ea[316]; /* zero or more EA's, packed together with no alignment padding. (Do not use this name, get here via fnode + ea_offs. I think.) */ @@ -430,7 +499,7 @@ struct fnode struct anode { - unsigned magic; /* 37e4 0aae */ + u32 magic; /* 37e4 0aae */ anode_secno self; /* pointer to this anode */ secno up; /* parent anode or fnode */ @@ -440,7 +509,7 @@ struct anode struct bplus_internal_node internal[60]; } u; - unsigned fill[3]; /* unused */ + u32 fill[3]; /* unused */ }; @@ -461,25 +530,31 @@ struct anode struct extended_attribute { - unsigned indirect: 1; /* 1 -> value gives sector number +#ifdef __LITTLE_ENDIAN + u8 indirect: 1; /* 1 -> value gives sector number where real value starts */ - unsigned anode: 1; /* 1 -> sector is an anode + u8 anode: 1; /* 1 -> sector is an anode + that points to fragmented value */ + u8 flag23456: 5; + u8 needea: 1; /* required ea */ +#else + u8 needea: 1; /* required ea */ + u8 flag23456: 5; + u8 anode: 1; /* 1 -> sector is an anode that points to fragmented value */ - unsigned flag2: 1; - unsigned flag3: 1; - unsigned flag4: 1; - unsigned flag5: 1; - unsigned flag6: 1; - unsigned needea: 1; /* required ea */ - unsigned char namelen; /* length of name, bytes */ - unsigned short valuelen; /* length of value, bytes */ - unsigned char name[0]; + u8 indirect: 1; /* 1 -> value gives sector number + where real value starts */ +#endif + u8 namelen; /* length of name, bytes */ + u8 valuelen_lo; /* length of value, bytes */ + u8 valuelen_hi; /* length of value, bytes */ + u8 name[0]; /* - unsigned char name[namelen]; ascii attrib name - unsigned char nul; terminating '\0', not counted - unsigned char value[valuelen]; value, arbitrary + u8 name[namelen]; ascii attrib name + u8 nul; terminating '\0', not counted + u8 value[valuelen]; value, arbitrary if this.indirect, valuelen is 8 and the value is - unsigned length; real length of value, bytes + u32 length; real length of value, bytes secno secno; sector address where it starts if this.anode, the above sector number is the root of an anode tree which points to the value. diff --git a/fs/hpfs/hpfs_fn.h b/fs/hpfs/hpfs_fn.h index c15adbca07f..dd552f862c8 100644 --- a/fs/hpfs/hpfs_fn.h +++ b/fs/hpfs/hpfs_fn.h @@ -13,6 +13,7 @@ #include <linux/pagemap.h> #include <linux/buffer_head.h> #include <linux/slab.h> +#include <asm/unaligned.h> #include "hpfs.h" @@ -51,18 +52,16 @@ struct hpfs_inode_info { unsigned i_disk_sec; /* (files) minimalist cache of alloc info */ unsigned i_n_secs; /* (files) minimalist cache of alloc info */ unsigned i_ea_size; /* size of extended attributes */ - unsigned i_conv : 2; /* (files) crlf->newline hackery */ unsigned i_ea_mode : 1; /* file's permission is stored in ea */ unsigned i_ea_uid : 1; /* file's uid is stored in ea */ unsigned i_ea_gid : 1; /* file's gid is stored in ea */ unsigned i_dirty : 1; - struct mutex i_mutex; - struct mutex i_parent_mutex; loff_t **i_rddir_off; struct inode vfs_inode; }; struct hpfs_sb_info { + struct mutex hpfs_mutex; /* global hpfs lock */ ino_t sb_root; /* inode number of root dir */ unsigned sb_fs_size; /* file system size, sectors */ unsigned sb_bitmaps; /* sector number of bitmap list */ @@ -74,7 +73,6 @@ struct hpfs_sb_info { uid_t sb_uid; /* uid from mount options */ gid_t sb_gid; /* gid from mount options */ umode_t sb_mode; /* mode from mount options */ - unsigned sb_conv : 2; /* crlf->newline hackery */ unsigned sb_eas : 2; /* eas: 0-ignore, 1-ro, 2-rw */ unsigned sb_err : 2; /* on errs: 0-cont, 1-ro, 2-panic */ unsigned sb_chk : 2; /* checks: 0-no, 1-normal, 2-strict */ @@ -87,20 +85,9 @@ struct hpfs_sb_info { unsigned *sb_bmp_dir; /* main bitmap directory */ unsigned sb_c_bitmap; /* current bitmap */ unsigned sb_max_fwd_alloc; /* max forwad allocation */ - struct mutex hpfs_creation_de; /* when creating dirents, nobody else - can alloc blocks */ - /*unsigned sb_mounting : 1;*/ int sb_timeshift; }; -/* - * conv= options - */ - -#define CONV_BINARY 0 /* no conversion */ -#define CONV_TEXT 1 /* crlf->newline */ -#define CONV_AUTO 2 /* decide based on file contents */ - /* Four 512-byte buffers and the 2k block obtained by concatenating them */ struct quad_buffer_head { @@ -113,7 +100,7 @@ struct quad_buffer_head { static inline dnode_secno de_down_pointer (struct hpfs_dirent *de) { CHKCOND(de->down,("HPFS: de_down_pointer: !de->down\n")); - return *(dnode_secno *) ((void *) de + de->length - 4); + return le32_to_cpu(*(dnode_secno *) ((void *) de + le16_to_cpu(de->length) - 4)); } /* The first dir entry in a dnode */ @@ -127,41 +114,46 @@ static inline struct hpfs_dirent *dnode_first_de (struct dnode *dnode) static inline struct hpfs_dirent *dnode_end_de (struct dnode *dnode) { - CHKCOND(dnode->first_free>=0x14 && dnode->first_free<=0xa00,("HPFS: dnode_end_de: dnode->first_free = %d\n",(int)dnode->first_free)); - return (void *) dnode + dnode->first_free; + CHKCOND(le32_to_cpu(dnode->first_free)>=0x14 && le32_to_cpu(dnode->first_free)<=0xa00,("HPFS: dnode_end_de: dnode->first_free = %x\n",(unsigned)le32_to_cpu(dnode->first_free))); + return (void *) dnode + le32_to_cpu(dnode->first_free); } /* The dir entry after dir entry de */ static inline struct hpfs_dirent *de_next_de (struct hpfs_dirent *de) { - CHKCOND(de->length>=0x20 && de->length<0x800,("HPFS: de_next_de: de->length = %d\n",(int)de->length)); - return (void *) de + de->length; + CHKCOND(le16_to_cpu(de->length)>=0x20 && le16_to_cpu(de->length)<0x800,("HPFS: de_next_de: de->length = %x\n",(unsigned)le16_to_cpu(de->length))); + return (void *) de + le16_to_cpu(de->length); } static inline struct extended_attribute *fnode_ea(struct fnode *fnode) { - return (struct extended_attribute *)((char *)fnode + fnode->ea_offs + fnode->acl_size_s); + return (struct extended_attribute *)((char *)fnode + le16_to_cpu(fnode->ea_offs) + le16_to_cpu(fnode->acl_size_s)); } static inline struct extended_attribute *fnode_end_ea(struct fnode *fnode) { - return (struct extended_attribute *)((char *)fnode + fnode->ea_offs + fnode->acl_size_s + fnode->ea_size_s); + return (struct extended_attribute *)((char *)fnode + le16_to_cpu(fnode->ea_offs) + le16_to_cpu(fnode->acl_size_s) + le16_to_cpu(fnode->ea_size_s)); +} + +static unsigned ea_valuelen(struct extended_attribute *ea) +{ + return ea->valuelen_lo + 256 * ea->valuelen_hi; } static inline struct extended_attribute *next_ea(struct extended_attribute *ea) { - return (struct extended_attribute *)((char *)ea + 5 + ea->namelen + ea->valuelen); + return (struct extended_attribute *)((char *)ea + 5 + ea->namelen + ea_valuelen(ea)); } static inline secno ea_sec(struct extended_attribute *ea) { - return *(secno *)((char *)ea + 9 + ea->namelen); + return le32_to_cpu(get_unaligned((secno *)((char *)ea + 9 + ea->namelen))); } static inline secno ea_len(struct extended_attribute *ea) { - return *(secno *)((char *)ea + 5 + ea->namelen); + return le32_to_cpu(get_unaligned((secno *)((char *)ea + 5 + ea->namelen))); } static inline char *ea_data(struct extended_attribute *ea) @@ -186,13 +178,13 @@ static inline void copy_de(struct hpfs_dirent *dst, struct hpfs_dirent *src) dst->not_8x3 = n; } -static inline unsigned tstbits(unsigned *bmp, unsigned b, unsigned n) +static inline unsigned tstbits(u32 *bmp, unsigned b, unsigned n) { int i; if ((b >= 0x4000) || (b + n - 1 >= 0x4000)) return n; - if (!((bmp[(b & 0x3fff) >> 5] >> (b & 0x1f)) & 1)) return 1; + if (!((le32_to_cpu(bmp[(b & 0x3fff) >> 5]) >> (b & 0x1f)) & 1)) return 1; for (i = 1; i < n; i++) - if (/*b+i < 0x4000 &&*/ !((bmp[((b+i) & 0x3fff) >> 5] >> ((b+i) & 0x1f)) & 1)) + if (!((le32_to_cpu(bmp[((b+i) & 0x3fff) >> 5]) >> ((b+i) & 0x1f)) & 1)) return i + 1; return 0; } @@ -200,12 +192,12 @@ static inline unsigned tstbits(unsigned *bmp, unsigned b, unsigned n) /* alloc.c */ int hpfs_chk_sectors(struct super_block *, secno, int, char *); -secno hpfs_alloc_sector(struct super_block *, secno, unsigned, int, int); +secno hpfs_alloc_sector(struct super_block *, secno, unsigned, int); int hpfs_alloc_if_possible(struct super_block *, secno); void hpfs_free_sectors(struct super_block *, secno, unsigned); int hpfs_check_free_dnodes(struct super_block *, int); void hpfs_free_dnode(struct super_block *, secno); -struct dnode *hpfs_alloc_dnode(struct super_block *, secno, dnode_secno *, struct quad_buffer_head *, int); +struct dnode *hpfs_alloc_dnode(struct super_block *, secno, dnode_secno *, struct quad_buffer_head *); struct fnode *hpfs_alloc_fnode(struct super_block *, secno, fnode_secno *, struct buffer_head **); struct anode *hpfs_alloc_anode(struct super_block *, secno, anode_secno *, struct buffer_head **); @@ -222,8 +214,6 @@ void hpfs_remove_fnode(struct super_block *, fnode_secno fno); /* buffer.c */ -void hpfs_lock_creation(struct super_block *); -void hpfs_unlock_creation(struct super_block *); void *hpfs_map_sector(struct super_block *, unsigned, struct buffer_head **, int); void *hpfs_get_sector(struct super_block *, unsigned, struct buffer_head **); void *hpfs_map_4sectors(struct super_block *, unsigned, struct quad_buffer_head *, int); @@ -247,7 +237,7 @@ void hpfs_del_pos(struct inode *, loff_t *); struct hpfs_dirent *hpfs_add_de(struct super_block *, struct dnode *, const unsigned char *, unsigned, secno); int hpfs_add_dirent(struct inode *, const unsigned char *, unsigned, - struct hpfs_dirent *, int); + struct hpfs_dirent *); int hpfs_remove_dirent(struct inode *, dnode_secno, struct hpfs_dirent *, struct quad_buffer_head *, int); void hpfs_count_dnodes(struct super_block *, dnode_secno, int *, int *, int *); dnode_secno hpfs_de_as_down_as_possible(struct super_block *, dnode_secno dno); @@ -303,7 +293,6 @@ int hpfs_compare_names(struct super_block *, const unsigned char *, unsigned, const unsigned char *, unsigned, int); int hpfs_is_name_long(const unsigned char *, unsigned); void hpfs_adjust_length(const unsigned char *, unsigned *); -void hpfs_decide_conv(struct inode *, const unsigned char *, unsigned); /* namei.c */ @@ -346,21 +335,26 @@ static inline time32_t gmt_to_local(struct super_block *s, time_t t) /* * Locking: * - * hpfs_lock() is a leftover from the big kernel lock. - * Right now, these functions are empty and only left - * for documentation purposes. The file system no longer - * works on SMP systems, so the lock is not needed - * any more. + * hpfs_lock() locks the whole filesystem. It must be taken + * on any method called by the VFS. * - * If someone is interested in making it work again, this - * would be the place to start by adding a per-superblock - * mutex and fixing all the bugs and performance issues - * caused by that. + * We don't do any per-file locking anymore, it is hard to + * review and HPFS is not performance-sensitive anyway. */ static inline void hpfs_lock(struct super_block *s) { + struct hpfs_sb_info *sbi = hpfs_sb(s); + mutex_lock(&sbi->hpfs_mutex); } static inline void hpfs_unlock(struct super_block *s) { + struct hpfs_sb_info *sbi = hpfs_sb(s); + mutex_unlock(&sbi->hpfs_mutex); +} + +static inline void hpfs_lock_assert(struct super_block *s) +{ + struct hpfs_sb_info *sbi = hpfs_sb(s); + WARN_ON(!mutex_is_locked(&sbi->hpfs_mutex)); } diff --git a/fs/hpfs/inode.c b/fs/hpfs/inode.c index 87f1f787e76..338cd836845 100644 --- a/fs/hpfs/inode.c +++ b/fs/hpfs/inode.c @@ -17,7 +17,6 @@ void hpfs_init_inode(struct inode *i) i->i_uid = hpfs_sb(sb)->sb_uid; i->i_gid = hpfs_sb(sb)->sb_gid; i->i_mode = hpfs_sb(sb)->sb_mode; - hpfs_inode->i_conv = hpfs_sb(sb)->sb_conv; i->i_size = -1; i->i_blocks = -1; @@ -116,8 +115,8 @@ void hpfs_read_inode(struct inode *i) i->i_mode |= S_IFDIR; i->i_op = &hpfs_dir_iops; i->i_fop = &hpfs_dir_ops; - hpfs_inode->i_parent_dir = fnode->up; - hpfs_inode->i_dno = fnode->u.external[0].disk_secno; + hpfs_inode->i_parent_dir = le32_to_cpu(fnode->up); + hpfs_inode->i_dno = le32_to_cpu(fnode->u.external[0].disk_secno); if (hpfs_sb(sb)->sb_chk >= 2) { struct buffer_head *bh0; if (hpfs_map_fnode(sb, hpfs_inode->i_parent_dir, &bh0)) brelse(bh0); @@ -133,7 +132,7 @@ void hpfs_read_inode(struct inode *i) i->i_op = &hpfs_file_iops; i->i_fop = &hpfs_file_ops; i->i_nlink = 1; - i->i_size = fnode->file_size; + i->i_size = le32_to_cpu(fnode->file_size); i->i_blocks = ((i->i_size + 511) >> 9) + 1; i->i_data.a_ops = &hpfs_aops; hpfs_i(i)->mmu_private = i->i_size; @@ -144,7 +143,7 @@ void hpfs_read_inode(struct inode *i) static void hpfs_write_inode_ea(struct inode *i, struct fnode *fnode) { struct hpfs_inode_info *hpfs_inode = hpfs_i(i); - /*if (fnode->acl_size_l || fnode->acl_size_s) { + /*if (le32_to_cpu(fnode->acl_size_l) || le16_to_cpu(fnode->acl_size_s)) { Some unknown structures like ACL may be in fnode, we'd better not overwrite them hpfs_error(i->i_sb, "fnode %08x has some unknown HPFS386 stuctures", i->i_ino); @@ -187,9 +186,7 @@ void hpfs_write_inode(struct inode *i) kfree(hpfs_inode->i_rddir_off); hpfs_inode->i_rddir_off = NULL; } - mutex_lock(&hpfs_inode->i_parent_mutex); if (!i->i_nlink) { - mutex_unlock(&hpfs_inode->i_parent_mutex); return; } parent = iget_locked(i->i_sb, hpfs_inode->i_parent_dir); @@ -200,14 +197,9 @@ void hpfs_write_inode(struct inode *i) hpfs_read_inode(parent); unlock_new_inode(parent); } - mutex_lock(&hpfs_inode->i_mutex); hpfs_write_inode_nolock(i); - mutex_unlock(&hpfs_inode->i_mutex); iput(parent); - } else { - mark_inode_dirty(i); } - mutex_unlock(&hpfs_inode->i_parent_mutex); } void hpfs_write_inode_nolock(struct inode *i) @@ -226,30 +218,30 @@ void hpfs_write_inode_nolock(struct inode *i) } } else de = NULL; if (S_ISREG(i->i_mode)) { - fnode->file_size = i->i_size; - if (de) de->file_size = i->i_size; + fnode->file_size = cpu_to_le32(i->i_size); + if (de) de->file_size = cpu_to_le32(i->i_size); } else if (S_ISDIR(i->i_mode)) { - fnode->file_size = 0; - if (de) de->file_size = 0; + fnode->file_size = cpu_to_le32(0); + if (de) de->file_size = cpu_to_le32(0); } hpfs_write_inode_ea(i, fnode); if (de) { - de->write_date = gmt_to_local(i->i_sb, i->i_mtime.tv_sec); - de->read_date = gmt_to_local(i->i_sb, i->i_atime.tv_sec); - de->creation_date = gmt_to_local(i->i_sb, i->i_ctime.tv_sec); + de->write_date = cpu_to_le32(gmt_to_local(i->i_sb, i->i_mtime.tv_sec)); + de->read_date = cpu_to_le32(gmt_to_local(i->i_sb, i->i_atime.tv_sec)); + de->creation_date = cpu_to_le32(gmt_to_local(i->i_sb, i->i_ctime.tv_sec)); de->read_only = !(i->i_mode & 0222); - de->ea_size = hpfs_inode->i_ea_size; + de->ea_size = cpu_to_le32(hpfs_inode->i_ea_size); hpfs_mark_4buffers_dirty(&qbh); hpfs_brelse4(&qbh); } if (S_ISDIR(i->i_mode)) { if ((de = map_dirent(i, hpfs_inode->i_dno, "\001\001", 2, NULL, &qbh))) { - de->write_date = gmt_to_local(i->i_sb, i->i_mtime.tv_sec); - de->read_date = gmt_to_local(i->i_sb, i->i_atime.tv_sec); - de->creation_date = gmt_to_local(i->i_sb, i->i_ctime.tv_sec); + de->write_date = cpu_to_le32(gmt_to_local(i->i_sb, i->i_mtime.tv_sec)); + de->read_date = cpu_to_le32(gmt_to_local(i->i_sb, i->i_atime.tv_sec)); + de->creation_date = cpu_to_le32(gmt_to_local(i->i_sb, i->i_ctime.tv_sec)); de->read_only = !(i->i_mode & 0222); - de->ea_size = /*hpfs_inode->i_ea_size*/0; - de->file_size = 0; + de->ea_size = cpu_to_le32(/*hpfs_inode->i_ea_size*/0); + de->file_size = cpu_to_le32(0); hpfs_mark_4buffers_dirty(&qbh); hpfs_brelse4(&qbh); } else @@ -269,6 +261,10 @@ int hpfs_setattr(struct dentry *dentry, struct iattr *attr) hpfs_lock(inode->i_sb); if (inode->i_ino == hpfs_sb(inode->i_sb)->sb_root) goto out_unlock; + if ((attr->ia_valid & ATTR_UID) && attr->ia_uid >= 0x10000) + goto out_unlock; + if ((attr->ia_valid & ATTR_GID) && attr->ia_gid >= 0x10000) + goto out_unlock; if ((attr->ia_valid & ATTR_SIZE) && attr->ia_size > inode->i_size) goto out_unlock; @@ -284,7 +280,6 @@ int hpfs_setattr(struct dentry *dentry, struct iattr *attr) } setattr_copy(inode, attr); - mark_inode_dirty(inode); hpfs_write_inode(inode); diff --git a/fs/hpfs/map.c b/fs/hpfs/map.c index 840d033ecee..a790821366a 100644 --- a/fs/hpfs/map.c +++ b/fs/hpfs/map.c @@ -21,7 +21,7 @@ unsigned int *hpfs_map_bitmap(struct super_block *s, unsigned bmp_block, hpfs_error(s, "hpfs_map_bitmap called with bad parameter: %08x at %s", bmp_block, id); return NULL; } - sec = hpfs_sb(s)->sb_bmp_dir[bmp_block]; + sec = le32_to_cpu(hpfs_sb(s)->sb_bmp_dir[bmp_block]); if (!sec || sec > hpfs_sb(s)->sb_fs_size-4) { hpfs_error(s, "invalid bitmap block pointer %08x -> %08x at %s", bmp_block, sec, id); return NULL; @@ -46,18 +46,18 @@ unsigned char *hpfs_load_code_page(struct super_block *s, secno cps) struct code_page_data *cpd; struct code_page_directory *cp = hpfs_map_sector(s, cps, &bh, 0); if (!cp) return NULL; - if (cp->magic != CP_DIR_MAGIC) { - printk("HPFS: Code page directory magic doesn't match (magic = %08x)\n", cp->magic); + if (le32_to_cpu(cp->magic) != CP_DIR_MAGIC) { + printk("HPFS: Code page directory magic doesn't match (magic = %08x)\n", le32_to_cpu(cp->magic)); brelse(bh); return NULL; } - if (!cp->n_code_pages) { + if (!le32_to_cpu(cp->n_code_pages)) { printk("HPFS: n_code_pages == 0\n"); brelse(bh); return NULL; } - cpds = cp->array[0].code_page_data; - cpi = cp->array[0].index; + cpds = le32_to_cpu(cp->array[0].code_page_data); + cpi = le16_to_cpu(cp->array[0].index); brelse(bh); if (cpi >= 3) { @@ -66,12 +66,12 @@ unsigned char *hpfs_load_code_page(struct super_block *s, secno cps) } if (!(cpd = hpfs_map_sector(s, cpds, &bh, 0))) return NULL; - if ((unsigned)cpd->offs[cpi] > 0x178) { + if (le16_to_cpu(cpd->offs[cpi]) > 0x178) { printk("HPFS: Code page index out of sector\n"); brelse(bh); return NULL; } - ptr = (unsigned char *)cpd + cpd->offs[cpi] + 6; + ptr = (unsigned char *)cpd + le16_to_cpu(cpd->offs[cpi]) + 6; if (!(cp_table = kmalloc(256, GFP_KERNEL))) { printk("HPFS: out of memory for code page table\n"); brelse(bh); @@ -125,7 +125,7 @@ struct fnode *hpfs_map_fnode(struct super_block *s, ino_t ino, struct buffer_hea if (hpfs_sb(s)->sb_chk) { struct extended_attribute *ea; struct extended_attribute *ea_end; - if (fnode->magic != FNODE_MAGIC) { + if (le32_to_cpu(fnode->magic) != FNODE_MAGIC) { hpfs_error(s, "bad magic on fnode %08lx", (unsigned long)ino); goto bail; @@ -138,7 +138,7 @@ struct fnode *hpfs_map_fnode(struct super_block *s, ino_t ino, struct buffer_hea (unsigned long)ino); goto bail; } - if (fnode->btree.first_free != + if (le16_to_cpu(fnode->btree.first_free) != 8 + fnode->btree.n_used_nodes * (fnode->btree.internal ? 8 : 12)) { hpfs_error(s, "bad first_free pointer in fnode %08lx", @@ -146,12 +146,12 @@ struct fnode *hpfs_map_fnode(struct super_block *s, ino_t ino, struct buffer_hea goto bail; } } - if (fnode->ea_size_s && ((signed int)fnode->ea_offs < 0xc4 || - (signed int)fnode->ea_offs + fnode->acl_size_s + fnode->ea_size_s > 0x200)) { + if (le16_to_cpu(fnode->ea_size_s) && (le16_to_cpu(fnode->ea_offs) < 0xc4 || + le16_to_cpu(fnode->ea_offs) + le16_to_cpu(fnode->acl_size_s) + le16_to_cpu(fnode->ea_size_s) > 0x200)) { hpfs_error(s, "bad EA info in fnode %08lx: ea_offs == %04x ea_size_s == %04x", (unsigned long)ino, - fnode->ea_offs, fnode->ea_size_s); + le16_to_cpu(fnode->ea_offs), le16_to_cpu(fnode->ea_size_s)); goto bail; } ea = fnode_ea(fnode); @@ -178,16 +178,20 @@ struct anode *hpfs_map_anode(struct super_block *s, anode_secno ano, struct buff if (hpfs_sb(s)->sb_chk) if (hpfs_chk_sectors(s, ano, 1, "anode")) return NULL; if ((anode = hpfs_map_sector(s, ano, bhp, ANODE_RD_AHEAD))) if (hpfs_sb(s)->sb_chk) { - if (anode->magic != ANODE_MAGIC || anode->self != ano) { + if (le32_to_cpu(anode->magic) != ANODE_MAGIC) { hpfs_error(s, "bad magic on anode %08x", ano); goto bail; } + if (le32_to_cpu(anode->self) != ano) { + hpfs_error(s, "self pointer invalid on anode %08x", ano); + goto bail; + } if ((unsigned)anode->btree.n_used_nodes + (unsigned)anode->btree.n_free_nodes != (anode->btree.internal ? 60 : 40)) { hpfs_error(s, "bad number of nodes in anode %08x", ano); goto bail; } - if (anode->btree.first_free != + if (le16_to_cpu(anode->btree.first_free) != 8 + anode->btree.n_used_nodes * (anode->btree.internal ? 8 : 12)) { hpfs_error(s, "bad first_free pointer in anode %08x", ano); goto bail; @@ -219,26 +223,26 @@ struct dnode *hpfs_map_dnode(struct super_block *s, unsigned secno, unsigned p, pp = 0; unsigned char *d = (unsigned char *)dnode; int b = 0; - if (dnode->magic != DNODE_MAGIC) { + if (le32_to_cpu(dnode->magic) != DNODE_MAGIC) { hpfs_error(s, "bad magic on dnode %08x", secno); goto bail; } - if (dnode->self != secno) - hpfs_error(s, "bad self pointer on dnode %08x self = %08x", secno, dnode->self); + if (le32_to_cpu(dnode->self) != secno) + hpfs_error(s, "bad self pointer on dnode %08x self = %08x", secno, le32_to_cpu(dnode->self)); /* Check dirents - bad dirents would cause infinite loops or shooting to memory */ - if (dnode->first_free > 2048/* || dnode->first_free < 84*/) { - hpfs_error(s, "dnode %08x has first_free == %08x", secno, dnode->first_free); + if (le32_to_cpu(dnode->first_free) > 2048) { + hpfs_error(s, "dnode %08x has first_free == %08x", secno, le32_to_cpu(dnode->first_free)); goto bail; } - for (p = 20; p < dnode->first_free; p += d[p] + (d[p+1] << 8)) { + for (p = 20; p < le32_to_cpu(dnode->first_free); p += d[p] + (d[p+1] << 8)) { struct hpfs_dirent *de = (struct hpfs_dirent *)((char *)dnode + p); - if (de->length > 292 || (de->length < 32) || (de->length & 3) || p + de->length > 2048) { + if (le16_to_cpu(de->length) > 292 || (le16_to_cpu(de->length) < 32) || (le16_to_cpu(de->length) & 3) || p + le16_to_cpu(de->length) > 2048) { hpfs_error(s, "bad dirent size in dnode %08x, dirent %03x, last %03x", secno, p, pp); goto bail; } - if (((31 + de->namelen + de->down*4 + 3) & ~3) != de->length) { - if (((31 + de->namelen + de->down*4 + 3) & ~3) < de->length && s->s_flags & MS_RDONLY) goto ok; + if (((31 + de->namelen + de->down*4 + 3) & ~3) != le16_to_cpu(de->length)) { + if (((31 + de->namelen + de->down*4 + 3) & ~3) < le16_to_cpu(de->length) && s->s_flags & MS_RDONLY) goto ok; hpfs_error(s, "namelen does not match dirent size in dnode %08x, dirent %03x, last %03x", secno, p, pp); goto bail; } @@ -251,7 +255,7 @@ struct dnode *hpfs_map_dnode(struct super_block *s, unsigned secno, pp = p; } - if (p != dnode->first_free) { + if (p != le32_to_cpu(dnode->first_free)) { hpfs_error(s, "size on last dirent does not match first_free; dnode %08x", secno); goto bail; } @@ -277,7 +281,7 @@ dnode_secno hpfs_fnode_dno(struct super_block *s, ino_t ino) if (!fnode) return 0; - dno = fnode->u.external[0].disk_secno; + dno = le32_to_cpu(fnode->u.external[0].disk_secno); brelse(bh); return dno; } diff --git a/fs/hpfs/name.c b/fs/hpfs/name.c index f24736d7a43..9acdf338def 100644 --- a/fs/hpfs/name.c +++ b/fs/hpfs/name.c @@ -8,39 +8,6 @@ #include "hpfs_fn.h" -static const char *text_postfix[]={ -".ASM", ".BAS", ".BAT", ".C", ".CC", ".CFG", ".CMD", ".CON", ".CPP", ".DEF", -".DOC", ".DPR", ".ERX", ".H", ".HPP", ".HTM", ".HTML", ".JAVA", ".LOG", ".PAS", -".RC", ".TEX", ".TXT", ".Y", ""}; - -static const char *text_prefix[]={ -"AUTOEXEC.", "CHANGES", "COPYING", "CONFIG.", "CREDITS", "FAQ", "FILE_ID.DIZ", -"MAKEFILE", "READ.ME", "README", "TERMCAP", ""}; - -void hpfs_decide_conv(struct inode *inode, const unsigned char *name, unsigned len) -{ - struct hpfs_inode_info *hpfs_inode = hpfs_i(inode); - int i; - if (hpfs_inode->i_conv != CONV_AUTO) return; - for (i = 0; *text_postfix[i]; i++) { - int l = strlen(text_postfix[i]); - if (l <= len) - if (!hpfs_compare_names(inode->i_sb, text_postfix[i], l, name + len - l, l, 0)) - goto text; - } - for (i = 0; *text_prefix[i]; i++) { - int l = strlen(text_prefix[i]); - if (l <= len) - if (!hpfs_compare_names(inode->i_sb, text_prefix[i], l, name, l, 0)) - goto text; - } - hpfs_inode->i_conv = CONV_BINARY; - return; - text: - hpfs_inode->i_conv = CONV_TEXT; - return; -} - static inline int not_allowed_char(unsigned char c) { return c<' ' || c=='"' || c=='*' || c=='/' || c==':' || c=='<' || diff --git a/fs/hpfs/namei.c b/fs/hpfs/namei.c index d5f8c8a1902..1f05839c27a 100644 --- a/fs/hpfs/namei.c +++ b/fs/hpfs/namei.c @@ -29,7 +29,7 @@ static int hpfs_mkdir(struct inode *dir, struct dentry *dentry, int mode) fnode = hpfs_alloc_fnode(dir->i_sb, hpfs_i(dir)->i_dno, &fno, &bh); if (!fnode) goto bail; - dnode = hpfs_alloc_dnode(dir->i_sb, fno, &dno, &qbh0, 1); + dnode = hpfs_alloc_dnode(dir->i_sb, fno, &dno, &qbh0); if (!dnode) goto bail1; memset(&dee, 0, sizeof dee); @@ -37,8 +37,8 @@ static int hpfs_mkdir(struct inode *dir, struct dentry *dentry, int mode) if (!(mode & 0222)) dee.read_only = 1; /*dee.archive = 0;*/ dee.hidden = name[0] == '.'; - dee.fnode = fno; - dee.creation_date = dee.write_date = dee.read_date = gmt_to_local(dir->i_sb, get_seconds()); + dee.fnode = cpu_to_le32(fno); + dee.creation_date = dee.write_date = dee.read_date = cpu_to_le32(gmt_to_local(dir->i_sb, get_seconds())); result = new_inode(dir->i_sb); if (!result) goto bail2; @@ -46,7 +46,7 @@ static int hpfs_mkdir(struct inode *dir, struct dentry *dentry, int mode) result->i_ino = fno; hpfs_i(result)->i_parent_dir = dir->i_ino; hpfs_i(result)->i_dno = dno; - result->i_ctime.tv_sec = result->i_mtime.tv_sec = result->i_atime.tv_sec = local_to_gmt(dir->i_sb, dee.creation_date); + result->i_ctime.tv_sec = result->i_mtime.tv_sec = result->i_atime.tv_sec = local_to_gmt(dir->i_sb, le32_to_cpu(dee.creation_date)); result->i_ctime.tv_nsec = 0; result->i_mtime.tv_nsec = 0; result->i_atime.tv_nsec = 0; @@ -60,8 +60,7 @@ static int hpfs_mkdir(struct inode *dir, struct dentry *dentry, int mode) if (dee.read_only) result->i_mode &= ~0222; - mutex_lock(&hpfs_i(dir)->i_mutex); - r = hpfs_add_dirent(dir, name, len, &dee, 0); + r = hpfs_add_dirent(dir, name, len, &dee); if (r == 1) goto bail3; if (r == -1) { @@ -70,21 +69,21 @@ static int hpfs_mkdir(struct inode *dir, struct dentry *dentry, int mode) } fnode->len = len; memcpy(fnode->name, name, len > 15 ? 15 : len); - fnode->up = dir->i_ino; + fnode->up = cpu_to_le32(dir->i_ino); fnode->dirflag = 1; fnode->btree.n_free_nodes = 7; fnode->btree.n_used_nodes = 1; - fnode->btree.first_free = 0x14; - fnode->u.external[0].disk_secno = dno; - fnode->u.external[0].file_secno = -1; + fnode->btree.first_free = cpu_to_le16(0x14); + fnode->u.external[0].disk_secno = cpu_to_le32(dno); + fnode->u.external[0].file_secno = cpu_to_le32(-1); dnode->root_dnode = 1; - dnode->up = fno; + dnode->up = cpu_to_le32(fno); de = hpfs_add_de(dir->i_sb, dnode, "\001\001", 2, 0); - de->creation_date = de->write_date = de->read_date = gmt_to_local(dir->i_sb, get_seconds()); + de->creation_date = de->write_date = de->read_date = cpu_to_le32(gmt_to_local(dir->i_sb, get_seconds())); if (!(mode & 0222)) de->read_only = 1; de->first = de->directory = 1; /*de->hidden = de->system = 0;*/ - de->fnode = fno; + de->fnode = cpu_to_le32(fno); mark_buffer_dirty(bh); brelse(bh); hpfs_mark_4buffers_dirty(&qbh0); @@ -101,11 +100,9 @@ static int hpfs_mkdir(struct inode *dir, struct dentry *dentry, int mode) hpfs_write_inode_nolock(result); } d_instantiate(dentry, result); - mutex_unlock(&hpfs_i(dir)->i_mutex); hpfs_unlock(dir->i_sb); return 0; bail3: - mutex_unlock(&hpfs_i(dir)->i_mutex); iput(result); bail2: hpfs_brelse4(&qbh0); @@ -140,8 +137,8 @@ static int hpfs_create(struct inode *dir, struct dentry *dentry, int mode, struc if (!(mode & 0222)) dee.read_only = 1; dee.archive = 1; dee.hidden = name[0] == '.'; - dee.fnode = fno; - dee.creation_date = dee.write_date = dee.read_date = gmt_to_local(dir->i_sb, get_seconds()); + dee.fnode = cpu_to_le32(fno); + dee.creation_date = dee.write_date = dee.read_date = cpu_to_le32(gmt_to_local(dir->i_sb, get_seconds())); result = new_inode(dir->i_sb); if (!result) @@ -154,9 +151,8 @@ static int hpfs_create(struct inode *dir, struct dentry *dentry, int mode, struc result->i_op = &hpfs_file_iops; result->i_fop = &hpfs_file_ops; result->i_nlink = 1; - hpfs_decide_conv(result, name, len); hpfs_i(result)->i_parent_dir = dir->i_ino; - result->i_ctime.tv_sec = result->i_mtime.tv_sec = result->i_atime.tv_sec = local_to_gmt(dir->i_sb, dee.creation_date); + result->i_ctime.tv_sec = result->i_mtime.tv_sec = result->i_atime.tv_sec = local_to_gmt(dir->i_sb, le32_to_cpu(dee.creation_date)); result->i_ctime.tv_nsec = 0; result->i_mtime.tv_nsec = 0; result->i_atime.tv_nsec = 0; @@ -168,8 +164,7 @@ static int hpfs_create(struct inode *dir, struct dentry *dentry, int mode, struc result->i_data.a_ops = &hpfs_aops; hpfs_i(result)->mmu_private = 0; - mutex_lock(&hpfs_i(dir)->i_mutex); - r = hpfs_add_dirent(dir, name, len, &dee, 0); + r = hpfs_add_dirent(dir, name, len, &dee); if (r == 1) goto bail2; if (r == -1) { @@ -178,7 +173,7 @@ static int hpfs_create(struct inode *dir, struct dentry *dentry, int mode, struc } fnode->len = len; memcpy(fnode->name, name, len > 15 ? 15 : len); - fnode->up = dir->i_ino; + fnode->up = cpu_to_le32(dir->i_ino); mark_buffer_dirty(bh); brelse(bh); @@ -193,12 +188,10 @@ static int hpfs_create(struct inode *dir, struct dentry *dentry, int mode, struc hpfs_write_inode_nolock(result); } d_instantiate(dentry, result); - mutex_unlock(&hpfs_i(dir)->i_mutex); hpfs_unlock(dir->i_sb); return 0; bail2: - mutex_unlock(&hpfs_i(dir)->i_mutex); iput(result); bail1: brelse(bh); @@ -232,8 +225,8 @@ static int hpfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t if (!(mode & 0222)) dee.read_only = 1; dee.archive = 1; dee.hidden = name[0] == '.'; - dee.fnode = fno; - dee.creation_date = dee.write_date = dee.read_date = gmt_to_local(dir->i_sb, get_seconds()); + dee.fnode = cpu_to_le32(fno); + dee.creation_date = dee.write_date = dee.read_date = cpu_to_le32(gmt_to_local(dir->i_sb, get_seconds())); result = new_inode(dir->i_sb); if (!result) @@ -242,7 +235,7 @@ static int hpfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t hpfs_init_inode(result); result->i_ino = fno; hpfs_i(result)->i_parent_dir = dir->i_ino; - result->i_ctime.tv_sec = result->i_mtime.tv_sec = result->i_atime.tv_sec = local_to_gmt(dir->i_sb, dee.creation_date); + result->i_ctime.tv_sec = result->i_mtime.tv_sec = result->i_atime.tv_sec = local_to_gmt(dir->i_sb, le32_to_cpu(dee.creation_date)); result->i_ctime.tv_nsec = 0; result->i_mtime.tv_nsec = 0; result->i_atime.tv_nsec = 0; @@ -254,8 +247,7 @@ static int hpfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t result->i_blocks = 1; init_special_inode(result, mode, rdev); - mutex_lock(&hpfs_i(dir)->i_mutex); - r = hpfs_add_dirent(dir, name, len, &dee, 0); + r = hpfs_add_dirent(dir, name, len, &dee); if (r == 1) goto bail2; if (r == -1) { @@ -264,19 +256,17 @@ static int hpfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t } fnode->len = len; memcpy(fnode->name, name, len > 15 ? 15 : len); - fnode->up = dir->i_ino; + fnode->up = cpu_to_le32(dir->i_ino); mark_buffer_dirty(bh); insert_inode_hash(result); hpfs_write_inode_nolock(result); d_instantiate(dentry, result); - mutex_unlock(&hpfs_i(dir)->i_mutex); brelse(bh); hpfs_unlock(dir->i_sb); return 0; bail2: - mutex_unlock(&hpfs_i(dir)->i_mutex); iput(result); bail1: brelse(bh); @@ -310,8 +300,8 @@ static int hpfs_symlink(struct inode *dir, struct dentry *dentry, const char *sy memset(&dee, 0, sizeof dee); dee.archive = 1; dee.hidden = name[0] == '.'; - dee.fnode = fno; - dee.creation_date = dee.write_date = dee.read_date = gmt_to_local(dir->i_sb, get_seconds()); + dee.fnode = cpu_to_le32(fno); + dee.creation_date = dee.write_date = dee.read_date = cpu_to_le32(gmt_to_local(dir->i_sb, get_seconds())); result = new_inode(dir->i_sb); if (!result) @@ -319,7 +309,7 @@ static int hpfs_symlink(struct inode *dir, struct dentry *dentry, const char *sy result->i_ino = fno; hpfs_init_inode(result); hpfs_i(result)->i_parent_dir = dir->i_ino; - result->i_ctime.tv_sec = result->i_mtime.tv_sec = result->i_atime.tv_sec = local_to_gmt(dir->i_sb, dee.creation_date); + result->i_ctime.tv_sec = result->i_mtime.tv_sec = result->i_atime.tv_sec = local_to_gmt(dir->i_sb, le32_to_cpu(dee.creation_date)); result->i_ctime.tv_nsec = 0; result->i_mtime.tv_nsec = 0; result->i_atime.tv_nsec = 0; @@ -333,8 +323,7 @@ static int hpfs_symlink(struct inode *dir, struct dentry *dentry, const char *sy result->i_op = &page_symlink_inode_operations; result->i_data.a_ops = &hpfs_symlink_aops; - mutex_lock(&hpfs_i(dir)->i_mutex); - r = hpfs_add_dirent(dir, name, len, &dee, 0); + r = hpfs_add_dirent(dir, name, len, &dee); if (r == 1) goto bail2; if (r == -1) { @@ -343,7 +332,7 @@ static int hpfs_symlink(struct inode *dir, struct dentry *dentry, const char *sy } fnode->len = len; memcpy(fnode->name, name, len > 15 ? 15 : len); - fnode->up = dir->i_ino; + fnode->up = cpu_to_le32(dir->i_ino); hpfs_set_ea(result, fnode, "SYMLINK", symlink, strlen(symlink)); mark_buffer_dirty(bh); brelse(bh); @@ -352,11 +341,9 @@ static int hpfs_symlink(struct inode *dir, struct dentry *dentry, const char *sy hpfs_write_inode_nolock(result); d_instantiate(dentry, result); - mutex_unlock(&hpfs_i(dir)->i_mutex); hpfs_unlock(dir->i_sb); return 0; bail2: - mutex_unlock(&hpfs_i(dir)->i_mutex); iput(result); bail1: brelse(bh); @@ -374,7 +361,6 @@ static int hpfs_unlink(struct inode *dir, struct dentry *dentry) struct hpfs_dirent *de; struct inode *inode = dentry->d_inode; dnode_secno dno; - fnode_secno fno; int r; int rep = 0; int err; @@ -382,8 +368,6 @@ static int hpfs_unlink(struct inode *dir, struct dentry *dentry) hpfs_lock(dir->i_sb); hpfs_adjust_length(name, &len); again: - mutex_lock(&hpfs_i(inode)->i_parent_mutex); - mutex_lock(&hpfs_i(dir)->i_mutex); err = -ENOENT; de = map_dirent(dir, hpfs_i(dir)->i_dno, name, len, &dno, &qbh); if (!de) @@ -397,7 +381,6 @@ again: if (de->directory) goto out1; - fno = de->fnode; r = hpfs_remove_dirent(dir, dno, de, &qbh, 1); switch (r) { case 1: @@ -410,8 +393,6 @@ again: if (rep++) break; - mutex_unlock(&hpfs_i(dir)->i_mutex); - mutex_unlock(&hpfs_i(inode)->i_parent_mutex); dentry_unhash(dentry); if (!d_unhashed(dentry)) { dput(dentry); @@ -445,8 +426,6 @@ again: out1: hpfs_brelse4(&qbh); out: - mutex_unlock(&hpfs_i(dir)->i_mutex); - mutex_unlock(&hpfs_i(inode)->i_parent_mutex); hpfs_unlock(dir->i_sb); return err; } @@ -459,15 +438,12 @@ static int hpfs_rmdir(struct inode *dir, struct dentry *dentry) struct hpfs_dirent *de; struct inode *inode = dentry->d_inode; dnode_secno dno; - fnode_secno fno; int n_items = 0; int err; int r; hpfs_adjust_length(name, &len); hpfs_lock(dir->i_sb); - mutex_lock(&hpfs_i(inode)->i_parent_mutex); - mutex_lock(&hpfs_i(dir)->i_mutex); err = -ENOENT; de = map_dirent(dir, hpfs_i(dir)->i_dno, name, len, &dno, &qbh); if (!de) @@ -486,7 +462,6 @@ static int hpfs_rmdir(struct inode *dir, struct dentry *dentry) if (n_items) goto out1; - fno = de->fnode; r = hpfs_remove_dirent(dir, dno, de, &qbh, 1); switch (r) { case 1: @@ -505,8 +480,6 @@ static int hpfs_rmdir(struct inode *dir, struct dentry *dentry) out1: hpfs_brelse4(&qbh); out: - mutex_unlock(&hpfs_i(dir)->i_mutex); - mutex_unlock(&hpfs_i(inode)->i_parent_mutex); hpfs_unlock(dir->i_sb); return err; } @@ -568,12 +541,6 @@ static int hpfs_rename(struct inode *old_dir, struct dentry *old_dentry, hpfs_lock(i->i_sb); /* order doesn't matter, due to VFS exclusion */ - mutex_lock(&hpfs_i(i)->i_parent_mutex); - if (new_inode) - mutex_lock(&hpfs_i(new_inode)->i_parent_mutex); - mutex_lock(&hpfs_i(old_dir)->i_mutex); - if (new_dir != old_dir) - mutex_lock(&hpfs_i(new_dir)->i_mutex); /* Erm? Moving over the empty non-busy directory is perfectly legal */ if (new_inode && S_ISDIR(new_inode->i_mode)) { @@ -610,9 +577,7 @@ static int hpfs_rename(struct inode *old_dir, struct dentry *old_dentry, if (new_dir == old_dir) hpfs_brelse4(&qbh); - hpfs_lock_creation(i->i_sb); - if ((r = hpfs_add_dirent(new_dir, new_name, new_len, &de, 1))) { - hpfs_unlock_creation(i->i_sb); + if ((r = hpfs_add_dirent(new_dir, new_name, new_len, &de))) { if (r == -1) hpfs_error(new_dir->i_sb, "hpfs_rename: dirent already exists!"); err = r == 1 ? -ENOSPC : -EFSERROR; if (new_dir != old_dir) hpfs_brelse4(&qbh); @@ -621,20 +586,17 @@ static int hpfs_rename(struct inode *old_dir, struct dentry *old_dentry, if (new_dir == old_dir) if (!(dep = map_dirent(old_dir, hpfs_i(old_dir)->i_dno, old_name, old_len, &dno, &qbh))) { - hpfs_unlock_creation(i->i_sb); hpfs_error(i->i_sb, "lookup succeeded but map dirent failed at #2"); err = -ENOENT; goto end1; } if ((r = hpfs_remove_dirent(old_dir, dno, dep, &qbh, 0))) { - hpfs_unlock_creation(i->i_sb); hpfs_error(i->i_sb, "hpfs_rename: could not remove dirent"); err = r == 2 ? -ENOSPC : -EFSERROR; goto end1; } - hpfs_unlock_creation(i->i_sb); - + end: hpfs_i(i)->i_parent_dir = new_dir->i_ino; if (S_ISDIR(i->i_mode)) { @@ -642,22 +604,14 @@ static int hpfs_rename(struct inode *old_dir, struct dentry *old_dentry, drop_nlink(old_dir); } if ((fnode = hpfs_map_fnode(i->i_sb, i->i_ino, &bh))) { - fnode->up = new_dir->i_ino; + fnode->up = cpu_to_le32(new_dir->i_ino); fnode->len = new_len; memcpy(fnode->name, new_name, new_len>15?15:new_len); if (new_len < 15) memset(&fnode->name[new_len], 0, 15 - new_len); mark_buffer_dirty(bh); brelse(bh); } - hpfs_i(i)->i_conv = hpfs_sb(i->i_sb)->sb_conv; - hpfs_decide_conv(i, new_name, new_len); end1: - if (old_dir != new_dir) - mutex_unlock(&hpfs_i(new_dir)->i_mutex); - mutex_unlock(&hpfs_i(old_dir)->i_mutex); - mutex_unlock(&hpfs_i(i)->i_parent_mutex); - if (new_inode) - mutex_unlock(&hpfs_i(new_inode)->i_parent_mutex); hpfs_unlock(i->i_sb); return err; } diff --git a/fs/hpfs/super.c b/fs/hpfs/super.c index c89b4080858..98580a3b500 100644 --- a/fs/hpfs/super.c +++ b/fs/hpfs/super.c @@ -18,15 +18,16 @@ /* Mark the filesystem dirty, so that chkdsk checks it when os/2 booted */ -static void mark_dirty(struct super_block *s) +static void mark_dirty(struct super_block *s, int remount) { - if (hpfs_sb(s)->sb_chkdsk && !(s->s_flags & MS_RDONLY)) { + if (hpfs_sb(s)->sb_chkdsk && (remount || !(s->s_flags & MS_RDONLY))) { struct buffer_head *bh; struct hpfs_spare_block *sb; if ((sb = hpfs_map_sector(s, 17, &bh, 0))) { sb->dirty = 1; sb->old_wrote = 0; mark_buffer_dirty(bh); + sync_dirty_buffer(bh); brelse(bh); } } @@ -40,10 +41,12 @@ static void unmark_dirty(struct super_block *s) struct buffer_head *bh; struct hpfs_spare_block *sb; if (s->s_flags & MS_RDONLY) return; + sync_blockdev(s->s_bdev); if ((sb = hpfs_map_sector(s, 17, &bh, 0))) { sb->dirty = hpfs_sb(s)->sb_chkdsk > 1 - hpfs_sb(s)->sb_was_error; sb->old_wrote = hpfs_sb(s)->sb_chkdsk >= 2 && !hpfs_sb(s)->sb_was_error; mark_buffer_dirty(bh); + sync_dirty_buffer(bh); brelse(bh); } } @@ -63,13 +66,13 @@ void hpfs_error(struct super_block *s, const char *fmt, ...) if (!hpfs_sb(s)->sb_was_error) { if (hpfs_sb(s)->sb_err == 2) { printk("; crashing the system because you wanted it\n"); - mark_dirty(s); + mark_dirty(s, 0); panic("HPFS panic"); } else if (hpfs_sb(s)->sb_err == 1) { if (s->s_flags & MS_RDONLY) printk("; already mounted read-only\n"); else { printk("; remounting read-only\n"); - mark_dirty(s); + mark_dirty(s, 0); s->s_flags |= MS_RDONLY; } } else if (s->s_flags & MS_RDONLY) printk("; going on - but anything won't be destroyed because it's read-only\n"); @@ -102,9 +105,12 @@ static void hpfs_put_super(struct super_block *s) { struct hpfs_sb_info *sbi = hpfs_sb(s); + hpfs_lock(s); + unmark_dirty(s); + hpfs_unlock(s); + kfree(sbi->sb_cp_table); kfree(sbi->sb_bmp_dir); - unmark_dirty(s); s->s_fs_info = NULL; kfree(sbi); } @@ -129,7 +135,7 @@ static unsigned count_bitmaps(struct super_block *s) n_bands = (hpfs_sb(s)->sb_fs_size + 0x3fff) >> 14; count = 0; for (n = 0; n < n_bands; n++) - count += hpfs_count_one_bitmap(s, hpfs_sb(s)->sb_bmp_dir[n]); + count += hpfs_count_one_bitmap(s, le32_to_cpu(hpfs_sb(s)->sb_bmp_dir[n])); return count; } @@ -188,8 +194,6 @@ static void init_once(void *foo) { struct hpfs_inode_info *ei = (struct hpfs_inode_info *) foo; - mutex_init(&ei->i_mutex); - mutex_init(&ei->i_parent_mutex); inode_init_once(&ei->vfs_inode); } @@ -218,7 +222,6 @@ static void destroy_inodecache(void) enum { Opt_help, Opt_uid, Opt_gid, Opt_umask, Opt_case_lower, Opt_case_asis, - Opt_conv_binary, Opt_conv_text, Opt_conv_auto, Opt_check_none, Opt_check_normal, Opt_check_strict, Opt_err_cont, Opt_err_ro, Opt_err_panic, Opt_eas_no, Opt_eas_ro, Opt_eas_rw, @@ -233,9 +236,6 @@ static const match_table_t tokens = { {Opt_umask, "umask=%o"}, {Opt_case_lower, "case=lower"}, {Opt_case_asis, "case=asis"}, - {Opt_conv_binary, "conv=binary"}, - {Opt_conv_text, "conv=text"}, - {Opt_conv_auto, "conv=auto"}, {Opt_check_none, "check=none"}, {Opt_check_normal, "check=normal"}, {Opt_check_strict, "check=strict"}, @@ -253,7 +253,7 @@ static const match_table_t tokens = { }; static int parse_opts(char *opts, uid_t *uid, gid_t *gid, umode_t *umask, - int *lowercase, int *conv, int *eas, int *chk, int *errs, + int *lowercase, int *eas, int *chk, int *errs, int *chkdsk, int *timeshift) { char *p; @@ -295,15 +295,6 @@ static int parse_opts(char *opts, uid_t *uid, gid_t *gid, umode_t *umask, case Opt_case_asis: *lowercase = 0; break; - case Opt_conv_binary: - *conv = CONV_BINARY; - break; - case Opt_conv_text: - *conv = CONV_TEXT; - break; - case Opt_conv_auto: - *conv = CONV_AUTO; - break; case Opt_check_none: *chk = 0; break; @@ -370,9 +361,6 @@ HPFS filesystem options:\n\ umask=xxx set mode of files that don't have mode specified in eas\n\ case=lower lowercase all files\n\ case=asis do not lowercase files (default)\n\ - conv=binary do not convert CR/LF -> LF (default)\n\ - conv=auto convert only files with known text extensions\n\ - conv=text convert all files\n\ check=none no fs checks - kernel may crash on corrupted filesystem\n\ check=normal do some checks - it should not crash (default)\n\ check=strict do extra time-consuming checks, used for debugging\n\ @@ -394,7 +382,7 @@ static int hpfs_remount_fs(struct super_block *s, int *flags, char *data) uid_t uid; gid_t gid; umode_t umask; - int lowercase, conv, eas, chk, errs, chkdsk, timeshift; + int lowercase, eas, chk, errs, chkdsk, timeshift; int o; struct hpfs_sb_info *sbi = hpfs_sb(s); char *new_opts = kstrdup(data, GFP_KERNEL); @@ -405,11 +393,11 @@ static int hpfs_remount_fs(struct super_block *s, int *flags, char *data) lock_super(s); uid = sbi->sb_uid; gid = sbi->sb_gid; umask = 0777 & ~sbi->sb_mode; - lowercase = sbi->sb_lowercase; conv = sbi->sb_conv; + lowercase = sbi->sb_lowercase; eas = sbi->sb_eas; chk = sbi->sb_chk; chkdsk = sbi->sb_chkdsk; errs = sbi->sb_err; timeshift = sbi->sb_timeshift; - if (!(o = parse_opts(data, &uid, &gid, &umask, &lowercase, &conv, + if (!(o = parse_opts(data, &uid, &gid, &umask, &lowercase, &eas, &chk, &errs, &chkdsk, ×hift))) { printk("HPFS: bad mount options.\n"); goto out_err; @@ -427,11 +415,11 @@ static int hpfs_remount_fs(struct super_block *s, int *flags, char *data) sbi->sb_uid = uid; sbi->sb_gid = gid; sbi->sb_mode = 0777 & ~umask; - sbi->sb_lowercase = lowercase; sbi->sb_conv = conv; + sbi->sb_lowercase = lowercase; sbi->sb_eas = eas; sbi->sb_chk = chk; sbi->sb_chkdsk = chkdsk; sbi->sb_err = errs; sbi->sb_timeshift = timeshift; - if (!(*flags & MS_RDONLY)) mark_dirty(s); + if (!(*flags & MS_RDONLY)) mark_dirty(s, 1); replace_mount_options(s, new_opts); @@ -471,7 +459,7 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent) uid_t uid; gid_t gid; umode_t umask; - int lowercase, conv, eas, chk, errs, chkdsk, timeshift; + int lowercase, eas, chk, errs, chkdsk, timeshift; dnode_secno root_dno; struct hpfs_dirent *de = NULL; @@ -479,11 +467,6 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent) int o; - if (num_possible_cpus() > 1) { - printk(KERN_ERR "HPFS is not SMP safe\n"); - return -EINVAL; - } - save_mount_options(s, options); sbi = kzalloc(sizeof(*sbi), GFP_KERNEL); @@ -495,20 +478,20 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent) sbi->sb_bmp_dir = NULL; sbi->sb_cp_table = NULL; - mutex_init(&sbi->hpfs_creation_de); + mutex_init(&sbi->hpfs_mutex); + hpfs_lock(s); uid = current_uid(); gid = current_gid(); umask = current_umask(); lowercase = 0; - conv = CONV_BINARY; eas = 2; chk = 1; errs = 1; chkdsk = 1; timeshift = 0; - if (!(o = parse_opts(options, &uid, &gid, &umask, &lowercase, &conv, + if (!(o = parse_opts(options, &uid, &gid, &umask, &lowercase, &eas, &chk, &errs, &chkdsk, ×hift))) { printk("HPFS: bad mount options.\n"); goto bail0; @@ -526,9 +509,9 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent) if (!(spareblock = hpfs_map_sector(s, 17, &bh2, 0))) goto bail3; /* Check magics */ - if (/*bootblock->magic != BB_MAGIC - ||*/ superblock->magic != SB_MAGIC - || spareblock->magic != SP_MAGIC) { + if (/*le16_to_cpu(bootblock->magic) != BB_MAGIC + ||*/ le32_to_cpu(superblock->magic) != SB_MAGIC + || le32_to_cpu(spareblock->magic) != SP_MAGIC) { if (!silent) printk("HPFS: Bad magic ... probably not HPFS\n"); goto bail4; } @@ -549,19 +532,18 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent) s->s_op = &hpfs_sops; s->s_d_op = &hpfs_dentry_operations; - sbi->sb_root = superblock->root; - sbi->sb_fs_size = superblock->n_sectors; - sbi->sb_bitmaps = superblock->bitmaps; - sbi->sb_dirband_start = superblock->dir_band_start; - sbi->sb_dirband_size = superblock->n_dir_band; - sbi->sb_dmap = superblock->dir_band_bitmap; + sbi->sb_root = le32_to_cpu(superblock->root); + sbi->sb_fs_size = le32_to_cpu(superblock->n_sectors); + sbi->sb_bitmaps = le32_to_cpu(superblock->bitmaps); + sbi->sb_dirband_start = le32_to_cpu(superblock->dir_band_start); + sbi->sb_dirband_size = le32_to_cpu(superblock->n_dir_band); + sbi->sb_dmap = le32_to_cpu(superblock->dir_band_bitmap); sbi->sb_uid = uid; sbi->sb_gid = gid; sbi->sb_mode = 0777 & ~umask; sbi->sb_n_free = -1; sbi->sb_n_free_dnodes = -1; sbi->sb_lowercase = lowercase; - sbi->sb_conv = conv; sbi->sb_eas = eas; sbi->sb_chk = chk; sbi->sb_chkdsk = chkdsk; @@ -573,7 +555,7 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent) sbi->sb_max_fwd_alloc = 0xffffff; /* Load bitmap directory */ - if (!(sbi->sb_bmp_dir = hpfs_load_bitmap_directory(s, superblock->bitmaps))) + if (!(sbi->sb_bmp_dir = hpfs_load_bitmap_directory(s, le32_to_cpu(superblock->bitmaps)))) goto bail4; /* Check for general fs errors*/ @@ -591,20 +573,20 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent) mark_buffer_dirty(bh2); } - if (spareblock->hotfixes_used || spareblock->n_spares_used) { + if (le32_to_cpu(spareblock->hotfixes_used) || le32_to_cpu(spareblock->n_spares_used)) { if (errs >= 2) { printk("HPFS: Hotfixes not supported here, try chkdsk\n"); - mark_dirty(s); + mark_dirty(s, 0); goto bail4; } hpfs_error(s, "hotfixes not supported here, try chkdsk"); if (errs == 0) printk("HPFS: Proceeding, but your filesystem will be probably corrupted by this driver...\n"); else printk("HPFS: This driver may read bad files or crash when operating on disk with hotfixes.\n"); } - if (spareblock->n_dnode_spares != spareblock->n_dnode_spares_free) { + if (le32_to_cpu(spareblock->n_dnode_spares) != le32_to_cpu(spareblock->n_dnode_spares_free)) { if (errs >= 2) { printk("HPFS: Spare dnodes used, try chkdsk\n"); - mark_dirty(s); + mark_dirty(s, 0); goto bail4; } hpfs_error(s, "warning: spare dnodes used, try chkdsk"); @@ -612,26 +594,26 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent) } if (chk) { unsigned a; - if (superblock->dir_band_end - superblock->dir_band_start + 1 != superblock->n_dir_band || - superblock->dir_band_end < superblock->dir_band_start || superblock->n_dir_band > 0x4000) { + if (le32_to_cpu(superblock->dir_band_end) - le32_to_cpu(superblock->dir_band_start) + 1 != le32_to_cpu(superblock->n_dir_band) || + le32_to_cpu(superblock->dir_band_end) < le32_to_cpu(superblock->dir_band_start) || le32_to_cpu(superblock->n_dir_band) > 0x4000) { hpfs_error(s, "dir band size mismatch: dir_band_start==%08x, dir_band_end==%08x, n_dir_band==%08x", - superblock->dir_band_start, superblock->dir_band_end, superblock->n_dir_band); + le32_to_cpu(superblock->dir_band_start), le32_to_cpu(superblock->dir_band_end), le32_to_cpu(superblock->n_dir_band)); goto bail4; } a = sbi->sb_dirband_size; sbi->sb_dirband_size = 0; - if (hpfs_chk_sectors(s, superblock->dir_band_start, superblock->n_dir_band, "dir_band") || - hpfs_chk_sectors(s, superblock->dir_band_bitmap, 4, "dir_band_bitmap") || - hpfs_chk_sectors(s, superblock->bitmaps, 4, "bitmaps")) { - mark_dirty(s); + if (hpfs_chk_sectors(s, le32_to_cpu(superblock->dir_band_start), le32_to_cpu(superblock->n_dir_band), "dir_band") || + hpfs_chk_sectors(s, le32_to_cpu(superblock->dir_band_bitmap), 4, "dir_band_bitmap") || + hpfs_chk_sectors(s, le32_to_cpu(superblock->bitmaps), 4, "bitmaps")) { + mark_dirty(s, 0); goto bail4; } sbi->sb_dirband_size = a; } else printk("HPFS: You really don't want any checks? You are crazy...\n"); /* Load code page table */ - if (spareblock->n_code_pages) - if (!(sbi->sb_cp_table = hpfs_load_code_page(s, spareblock->code_page_dir))) + if (le32_to_cpu(spareblock->n_code_pages)) + if (!(sbi->sb_cp_table = hpfs_load_code_page(s, le32_to_cpu(spareblock->code_page_dir)))) printk("HPFS: Warning: code page support is disabled\n"); brelse(bh2); @@ -660,13 +642,13 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent) if (!de) hpfs_error(s, "unable to find root dir"); else { - root->i_atime.tv_sec = local_to_gmt(s, de->read_date); + root->i_atime.tv_sec = local_to_gmt(s, le32_to_cpu(de->read_date)); root->i_atime.tv_nsec = 0; - root->i_mtime.tv_sec = local_to_gmt(s, de->write_date); + root->i_mtime.tv_sec = local_to_gmt(s, le32_to_cpu(de->write_date)); root->i_mtime.tv_nsec = 0; - root->i_ctime.tv_sec = local_to_gmt(s, de->creation_date); + root->i_ctime.tv_sec = local_to_gmt(s, le32_to_cpu(de->creation_date)); root->i_ctime.tv_nsec = 0; - hpfs_i(root)->i_ea_size = de->ea_size; + hpfs_i(root)->i_ea_size = le16_to_cpu(de->ea_size); hpfs_i(root)->i_parent_dir = root->i_ino; if (root->i_size == -1) root->i_size = 2048; @@ -674,6 +656,7 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent) root->i_blocks = 5; hpfs_brelse4(&qbh); } + hpfs_unlock(s); return 0; bail4: brelse(bh2); @@ -681,6 +664,7 @@ bail3: brelse(bh1); bail2: brelse(bh0); bail1: bail0: + hpfs_unlock(s); kfree(sbi->sb_bmp_dir); kfree(sbi->sb_cp_table); s->s_fs_info = NULL; diff --git a/fs/namei.c b/fs/namei.c index 54fc993e302..e3c4f112ebf 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -179,7 +179,7 @@ EXPORT_SYMBOL(putname); static int acl_permission_check(struct inode *inode, int mask, unsigned int flags, int (*check_acl)(struct inode *inode, int mask, unsigned int flags)) { - umode_t mode = inode->i_mode; + unsigned int mode = inode->i_mode; mask &= MAY_READ | MAY_WRITE | MAY_EXEC; diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c index 6f8192f4cfc..be79dc9f386 100644 --- a/fs/nfs/nfs4filelayout.c +++ b/fs/nfs/nfs4filelayout.c @@ -117,6 +117,8 @@ static int filelayout_async_handle_error(struct rpc_task *task, case -EKEYEXPIRED: rpc_delay(task, FILELAYOUT_POLL_RETRY_MAX); break; + case -NFS4ERR_RETRY_UNCACHED_REP: + break; default: dprintk("%s DS error. Retry through MDS %d\n", __func__, task->tk_status); @@ -416,7 +418,8 @@ static int filelayout_check_layout(struct pnfs_layout_hdr *lo, struct nfs4_filelayout_segment *fl, struct nfs4_layoutget_res *lgr, - struct nfs4_deviceid *id) + struct nfs4_deviceid *id, + gfp_t gfp_flags) { struct nfs4_file_layout_dsaddr *dsaddr; int status = -EINVAL; @@ -439,7 +442,7 @@ filelayout_check_layout(struct pnfs_layout_hdr *lo, /* find and reference the deviceid */ dsaddr = nfs4_fl_find_get_deviceid(id); if (dsaddr == NULL) { - dsaddr = get_device_info(lo->plh_inode, id); + dsaddr = get_device_info(lo->plh_inode, id, gfp_flags); if (dsaddr == NULL) goto out; } @@ -500,7 +503,8 @@ static int filelayout_decode_layout(struct pnfs_layout_hdr *flo, struct nfs4_filelayout_segment *fl, struct nfs4_layoutget_res *lgr, - struct nfs4_deviceid *id) + struct nfs4_deviceid *id, + gfp_t gfp_flags) { struct xdr_stream stream; struct xdr_buf buf = { @@ -516,7 +520,7 @@ filelayout_decode_layout(struct pnfs_layout_hdr *flo, dprintk("%s: set_layout_map Begin\n", __func__); - scratch = alloc_page(GFP_KERNEL); + scratch = alloc_page(gfp_flags); if (!scratch) return -ENOMEM; @@ -554,13 +558,13 @@ filelayout_decode_layout(struct pnfs_layout_hdr *flo, goto out_err; fl->fh_array = kzalloc(fl->num_fh * sizeof(struct nfs_fh *), - GFP_KERNEL); + gfp_flags); if (!fl->fh_array) goto out_err; for (i = 0; i < fl->num_fh; i++) { /* Do we want to use a mempool here? */ - fl->fh_array[i] = kmalloc(sizeof(struct nfs_fh), GFP_KERNEL); + fl->fh_array[i] = kmalloc(sizeof(struct nfs_fh), gfp_flags); if (!fl->fh_array[i]) goto out_err_free; @@ -605,19 +609,20 @@ filelayout_free_lseg(struct pnfs_layout_segment *lseg) static struct pnfs_layout_segment * filelayout_alloc_lseg(struct pnfs_layout_hdr *layoutid, - struct nfs4_layoutget_res *lgr) + struct nfs4_layoutget_res *lgr, + gfp_t gfp_flags) { struct nfs4_filelayout_segment *fl; int rc; struct nfs4_deviceid id; dprintk("--> %s\n", __func__); - fl = kzalloc(sizeof(*fl), GFP_KERNEL); + fl = kzalloc(sizeof(*fl), gfp_flags); if (!fl) return NULL; - rc = filelayout_decode_layout(layoutid, fl, lgr, &id); - if (rc != 0 || filelayout_check_layout(layoutid, fl, lgr, &id)) { + rc = filelayout_decode_layout(layoutid, fl, lgr, &id, gfp_flags); + if (rc != 0 || filelayout_check_layout(layoutid, fl, lgr, &id, gfp_flags)) { _filelayout_free_lseg(fl); return NULL; } @@ -633,7 +638,7 @@ filelayout_alloc_lseg(struct pnfs_layout_hdr *layoutid, int size = (fl->stripe_type == STRIPE_SPARSE) ? fl->dsaddr->ds_num : fl->dsaddr->stripe_count; - fl->commit_buckets = kcalloc(size, sizeof(struct list_head), GFP_KERNEL); + fl->commit_buckets = kcalloc(size, sizeof(struct list_head), gfp_flags); if (!fl->commit_buckets) { filelayout_free_lseg(&fl->generic_hdr); return NULL; diff --git a/fs/nfs/nfs4filelayout.h b/fs/nfs/nfs4filelayout.h index 7c44579f583..2b461d77b43 100644 --- a/fs/nfs/nfs4filelayout.h +++ b/fs/nfs/nfs4filelayout.h @@ -104,6 +104,6 @@ extern struct nfs4_file_layout_dsaddr * nfs4_fl_find_get_deviceid(struct nfs4_deviceid *dev_id); extern void nfs4_fl_put_deviceid(struct nfs4_file_layout_dsaddr *dsaddr); struct nfs4_file_layout_dsaddr * -get_device_info(struct inode *inode, struct nfs4_deviceid *dev_id); +get_device_info(struct inode *inode, struct nfs4_deviceid *dev_id, gfp_t gfp_flags); #endif /* FS_NFS_NFS4FILELAYOUT_H */ diff --git a/fs/nfs/nfs4filelayoutdev.c b/fs/nfs/nfs4filelayoutdev.c index de5350f2b24..db07c7af139 100644 --- a/fs/nfs/nfs4filelayoutdev.c +++ b/fs/nfs/nfs4filelayoutdev.c @@ -225,11 +225,11 @@ nfs4_fl_free_deviceid(struct nfs4_file_layout_dsaddr *dsaddr) } static struct nfs4_pnfs_ds * -nfs4_pnfs_ds_add(struct inode *inode, u32 ip_addr, u32 port) +nfs4_pnfs_ds_add(struct inode *inode, u32 ip_addr, u32 port, gfp_t gfp_flags) { struct nfs4_pnfs_ds *tmp_ds, *ds; - ds = kzalloc(sizeof(*tmp_ds), GFP_KERNEL); + ds = kzalloc(sizeof(*tmp_ds), gfp_flags); if (!ds) goto out; @@ -261,7 +261,7 @@ out: * Currently only support ipv4, and one multi-path address. */ static struct nfs4_pnfs_ds * -decode_and_add_ds(struct xdr_stream *streamp, struct inode *inode) +decode_and_add_ds(struct xdr_stream *streamp, struct inode *inode, gfp_t gfp_flags) { struct nfs4_pnfs_ds *ds = NULL; char *buf; @@ -303,7 +303,7 @@ decode_and_add_ds(struct xdr_stream *streamp, struct inode *inode) rlen); goto out_err; } - buf = kmalloc(rlen + 1, GFP_KERNEL); + buf = kmalloc(rlen + 1, gfp_flags); if (!buf) { dprintk("%s: Not enough memory\n", __func__); goto out_err; @@ -333,7 +333,7 @@ decode_and_add_ds(struct xdr_stream *streamp, struct inode *inode) sscanf(pstr, "-%d-%d", &tmp[0], &tmp[1]); port = htons((tmp[0] << 8) | (tmp[1])); - ds = nfs4_pnfs_ds_add(inode, ip_addr, port); + ds = nfs4_pnfs_ds_add(inode, ip_addr, port, gfp_flags); dprintk("%s: Decoded address and port %s\n", __func__, buf); out_free: kfree(buf); @@ -343,7 +343,7 @@ out_err: /* Decode opaque device data and return the result */ static struct nfs4_file_layout_dsaddr* -decode_device(struct inode *ino, struct pnfs_device *pdev) +decode_device(struct inode *ino, struct pnfs_device *pdev, gfp_t gfp_flags) { int i; u32 cnt, num; @@ -362,7 +362,7 @@ decode_device(struct inode *ino, struct pnfs_device *pdev) struct page *scratch; /* set up xdr stream */ - scratch = alloc_page(GFP_KERNEL); + scratch = alloc_page(gfp_flags); if (!scratch) goto out_err; @@ -384,7 +384,7 @@ decode_device(struct inode *ino, struct pnfs_device *pdev) } /* read stripe indices */ - stripe_indices = kcalloc(cnt, sizeof(u8), GFP_KERNEL); + stripe_indices = kcalloc(cnt, sizeof(u8), gfp_flags); if (!stripe_indices) goto out_err_free_scratch; @@ -423,7 +423,7 @@ decode_device(struct inode *ino, struct pnfs_device *pdev) dsaddr = kzalloc(sizeof(*dsaddr) + (sizeof(struct nfs4_pnfs_ds *) * (num - 1)), - GFP_KERNEL); + gfp_flags); if (!dsaddr) goto out_err_free_stripe_indices; @@ -452,7 +452,7 @@ decode_device(struct inode *ino, struct pnfs_device *pdev) for (j = 0; j < mp_count; j++) { if (j == 0) { dsaddr->ds_list[i] = decode_and_add_ds(&stream, - ino); + ino, gfp_flags); if (dsaddr->ds_list[i] == NULL) goto out_err_free_deviceid; } else { @@ -503,12 +503,12 @@ out_err: * available devices. */ static struct nfs4_file_layout_dsaddr * -decode_and_add_device(struct inode *inode, struct pnfs_device *dev) +decode_and_add_device(struct inode *inode, struct pnfs_device *dev, gfp_t gfp_flags) { struct nfs4_file_layout_dsaddr *d, *new; long hash; - new = decode_device(inode, dev); + new = decode_device(inode, dev, gfp_flags); if (!new) { printk(KERN_WARNING "%s: Could not decode or add device\n", __func__); @@ -537,7 +537,7 @@ decode_and_add_device(struct inode *inode, struct pnfs_device *dev) * of available devices, and return it. */ struct nfs4_file_layout_dsaddr * -get_device_info(struct inode *inode, struct nfs4_deviceid *dev_id) +get_device_info(struct inode *inode, struct nfs4_deviceid *dev_id, gfp_t gfp_flags) { struct pnfs_device *pdev = NULL; u32 max_resp_sz; @@ -556,17 +556,17 @@ get_device_info(struct inode *inode, struct nfs4_deviceid *dev_id) dprintk("%s inode %p max_resp_sz %u max_pages %d\n", __func__, inode, max_resp_sz, max_pages); - pdev = kzalloc(sizeof(struct pnfs_device), GFP_KERNEL); + pdev = kzalloc(sizeof(struct pnfs_device), gfp_flags); if (pdev == NULL) return NULL; - pages = kzalloc(max_pages * sizeof(struct page *), GFP_KERNEL); + pages = kzalloc(max_pages * sizeof(struct page *), gfp_flags); if (pages == NULL) { kfree(pdev); return NULL; } for (i = 0; i < max_pages; i++) { - pages[i] = alloc_page(GFP_KERNEL); + pages[i] = alloc_page(gfp_flags); if (!pages[i]) goto out_free; } @@ -587,7 +587,7 @@ get_device_info(struct inode *inode, struct nfs4_deviceid *dev_id) * Found new device, need to decode it and then add it to the * list of known devices for this mountpoint. */ - dsaddr = decode_and_add_device(inode, pdev); + dsaddr = decode_and_add_device(inode, pdev, gfp_flags); out_free: for (i = 0; i < max_pages; i++) __free_page(pages[i]); diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 69c0f3c5ee7..cf1b339c393 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -300,6 +300,7 @@ static int nfs4_handle_exception(struct nfs_server *server, int errorcode, struc ret = nfs4_delay(server->client, &exception->timeout); if (ret != 0) break; + case -NFS4ERR_RETRY_UNCACHED_REP: case -NFS4ERR_OLD_STATEID: exception->retry = 1; break; @@ -3695,6 +3696,7 @@ nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server, rpc_delay(task, NFS4_POLL_RETRY_MAX); task->tk_status = 0; return -EAGAIN; + case -NFS4ERR_RETRY_UNCACHED_REP: case -NFS4ERR_OLD_STATEID: task->tk_status = 0; return -EAGAIN; @@ -4844,6 +4846,8 @@ static void nfs4_get_lease_time_done(struct rpc_task *task, void *calldata) dprintk("%s Retry: tk_status %d\n", __func__, task->tk_status); rpc_delay(task, NFS4_POLL_RETRY_MIN); task->tk_status = 0; + /* fall through */ + case -NFS4ERR_RETRY_UNCACHED_REP: nfs_restart_rpc(task, data->clp); return; } @@ -5479,6 +5483,8 @@ static int nfs41_reclaim_complete_handle_errors(struct rpc_task *task, struct nf break; case -NFS4ERR_DELAY: rpc_delay(task, NFS4_POLL_RETRY_MAX); + /* fall through */ + case -NFS4ERR_RETRY_UNCACHED_REP: return -EAGAIN; default: nfs4_schedule_lease_recovery(clp); diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index ff681ab65d3..f57f5281a52 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -383,6 +383,7 @@ pnfs_destroy_all_layouts(struct nfs_client *clp) plh_layouts); dprintk("%s freeing layout for inode %lu\n", __func__, lo->plh_inode->i_ino); + list_del_init(&lo->plh_layouts); pnfs_destroy_layout(NFS_I(lo->plh_inode)); } } @@ -466,7 +467,8 @@ pnfs_choose_layoutget_stateid(nfs4_stateid *dst, struct pnfs_layout_hdr *lo, static struct pnfs_layout_segment * send_layoutget(struct pnfs_layout_hdr *lo, struct nfs_open_context *ctx, - u32 iomode) + u32 iomode, + gfp_t gfp_flags) { struct inode *ino = lo->plh_inode; struct nfs_server *server = NFS_SERVER(ino); @@ -479,7 +481,7 @@ send_layoutget(struct pnfs_layout_hdr *lo, dprintk("--> %s\n", __func__); BUG_ON(ctx == NULL); - lgp = kzalloc(sizeof(*lgp), GFP_KERNEL); + lgp = kzalloc(sizeof(*lgp), gfp_flags); if (lgp == NULL) return NULL; @@ -487,12 +489,12 @@ send_layoutget(struct pnfs_layout_hdr *lo, max_resp_sz = server->nfs_client->cl_session->fc_attrs.max_resp_sz; max_pages = max_resp_sz >> PAGE_SHIFT; - pages = kzalloc(max_pages * sizeof(struct page *), GFP_KERNEL); + pages = kzalloc(max_pages * sizeof(struct page *), gfp_flags); if (!pages) goto out_err_free; for (i = 0; i < max_pages; i++) { - pages[i] = alloc_page(GFP_KERNEL); + pages[i] = alloc_page(gfp_flags); if (!pages[i]) goto out_err_free; } @@ -508,6 +510,7 @@ send_layoutget(struct pnfs_layout_hdr *lo, lgp->args.layout.pages = pages; lgp->args.layout.pglen = max_pages * PAGE_SIZE; lgp->lsegpp = &lseg; + lgp->gfp_flags = gfp_flags; /* Synchronously retrieve layout information from server and * store in lseg. @@ -665,11 +668,11 @@ pnfs_insert_layout(struct pnfs_layout_hdr *lo, } static struct pnfs_layout_hdr * -alloc_init_layout_hdr(struct inode *ino) +alloc_init_layout_hdr(struct inode *ino, gfp_t gfp_flags) { struct pnfs_layout_hdr *lo; - lo = kzalloc(sizeof(struct pnfs_layout_hdr), GFP_KERNEL); + lo = kzalloc(sizeof(struct pnfs_layout_hdr), gfp_flags); if (!lo) return NULL; atomic_set(&lo->plh_refcount, 1); @@ -681,7 +684,7 @@ alloc_init_layout_hdr(struct inode *ino) } static struct pnfs_layout_hdr * -pnfs_find_alloc_layout(struct inode *ino) +pnfs_find_alloc_layout(struct inode *ino, gfp_t gfp_flags) { struct nfs_inode *nfsi = NFS_I(ino); struct pnfs_layout_hdr *new = NULL; @@ -696,7 +699,7 @@ pnfs_find_alloc_layout(struct inode *ino) return nfsi->layout; } spin_unlock(&ino->i_lock); - new = alloc_init_layout_hdr(ino); + new = alloc_init_layout_hdr(ino, gfp_flags); spin_lock(&ino->i_lock); if (likely(nfsi->layout == NULL)) /* Won the race? */ @@ -756,7 +759,8 @@ pnfs_find_lseg(struct pnfs_layout_hdr *lo, u32 iomode) struct pnfs_layout_segment * pnfs_update_layout(struct inode *ino, struct nfs_open_context *ctx, - enum pnfs_iomode iomode) + enum pnfs_iomode iomode, + gfp_t gfp_flags) { struct nfs_inode *nfsi = NFS_I(ino); struct nfs_client *clp = NFS_SERVER(ino)->nfs_client; @@ -767,7 +771,7 @@ pnfs_update_layout(struct inode *ino, if (!pnfs_enabled_sb(NFS_SERVER(ino))) return NULL; spin_lock(&ino->i_lock); - lo = pnfs_find_alloc_layout(ino); + lo = pnfs_find_alloc_layout(ino, gfp_flags); if (lo == NULL) { dprintk("%s ERROR: can't get pnfs_layout_hdr\n", __func__); goto out_unlock; @@ -807,7 +811,7 @@ pnfs_update_layout(struct inode *ino, spin_unlock(&clp->cl_lock); } - lseg = send_layoutget(lo, ctx, iomode); + lseg = send_layoutget(lo, ctx, iomode, gfp_flags); if (!lseg && first) { spin_lock(&clp->cl_lock); list_del_init(&lo->plh_layouts); @@ -846,7 +850,7 @@ pnfs_layout_process(struct nfs4_layoutget *lgp) goto out; } /* Inject layout blob into I/O device driver */ - lseg = NFS_SERVER(ino)->pnfs_curr_ld->alloc_lseg(lo, res); + lseg = NFS_SERVER(ino)->pnfs_curr_ld->alloc_lseg(lo, res, lgp->gfp_flags); if (!lseg || IS_ERR(lseg)) { if (!lseg) status = -ENOMEM; @@ -899,7 +903,8 @@ static int pnfs_read_pg_test(struct nfs_pageio_descriptor *pgio, /* This is first coelesce call for a series of nfs_pages */ pgio->pg_lseg = pnfs_update_layout(pgio->pg_inode, prev->wb_context, - IOMODE_READ); + IOMODE_READ, + GFP_KERNEL); } return NFS_SERVER(pgio->pg_inode)->pnfs_curr_ld->pg_test(pgio, prev, req); } @@ -921,7 +926,8 @@ static int pnfs_write_pg_test(struct nfs_pageio_descriptor *pgio, /* This is first coelesce call for a series of nfs_pages */ pgio->pg_lseg = pnfs_update_layout(pgio->pg_inode, prev->wb_context, - IOMODE_RW); + IOMODE_RW, + GFP_NOFS); } return NFS_SERVER(pgio->pg_inode)->pnfs_curr_ld->pg_test(pgio, prev, req); } diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h index bc4827202e7..0c015bad9e7 100644 --- a/fs/nfs/pnfs.h +++ b/fs/nfs/pnfs.h @@ -70,7 +70,7 @@ struct pnfs_layoutdriver_type { const u32 id; const char *name; struct module *owner; - struct pnfs_layout_segment * (*alloc_lseg) (struct pnfs_layout_hdr *layoutid, struct nfs4_layoutget_res *lgr); + struct pnfs_layout_segment * (*alloc_lseg) (struct pnfs_layout_hdr *layoutid, struct nfs4_layoutget_res *lgr, gfp_t gfp_flags); void (*free_lseg) (struct pnfs_layout_segment *lseg); /* test for nfs page cache coalescing */ @@ -126,7 +126,7 @@ void get_layout_hdr(struct pnfs_layout_hdr *lo); void put_lseg(struct pnfs_layout_segment *lseg); struct pnfs_layout_segment * pnfs_update_layout(struct inode *ino, struct nfs_open_context *ctx, - enum pnfs_iomode access_type); + enum pnfs_iomode access_type, gfp_t gfp_flags); void set_pnfs_layoutdriver(struct nfs_server *, u32 id); void unset_pnfs_layoutdriver(struct nfs_server *); enum pnfs_try_status pnfs_try_to_write_data(struct nfs_write_data *, @@ -245,7 +245,7 @@ static inline void put_lseg(struct pnfs_layout_segment *lseg) static inline struct pnfs_layout_segment * pnfs_update_layout(struct inode *ino, struct nfs_open_context *ctx, - enum pnfs_iomode access_type) + enum pnfs_iomode access_type, gfp_t gfp_flags) { return NULL; } diff --git a/fs/nfs/read.c b/fs/nfs/read.c index 7cded2b12a0..2bcf0dc306a 100644 --- a/fs/nfs/read.c +++ b/fs/nfs/read.c @@ -288,7 +288,7 @@ static int nfs_pagein_multi(struct nfs_pageio_descriptor *desc) atomic_set(&req->wb_complete, requests); BUG_ON(desc->pg_lseg != NULL); - lseg = pnfs_update_layout(desc->pg_inode, req->wb_context, IOMODE_READ); + lseg = pnfs_update_layout(desc->pg_inode, req->wb_context, IOMODE_READ, GFP_KERNEL); ClearPageError(page); offset = 0; nbytes = desc->pg_count; @@ -351,7 +351,7 @@ static int nfs_pagein_one(struct nfs_pageio_descriptor *desc) } req = nfs_list_entry(data->pages.next); if ((!lseg) && list_is_singular(&data->pages)) - lseg = pnfs_update_layout(desc->pg_inode, req->wb_context, IOMODE_READ); + lseg = pnfs_update_layout(desc->pg_inode, req->wb_context, IOMODE_READ, GFP_KERNEL); ret = nfs_read_rpcsetup(req, data, &nfs_read_full_ops, desc->pg_count, 0, lseg); diff --git a/fs/nfs/write.c b/fs/nfs/write.c index 3bd5d7e80f6..49c715b4ac9 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -939,7 +939,7 @@ static int nfs_flush_multi(struct nfs_pageio_descriptor *desc) atomic_set(&req->wb_complete, requests); BUG_ON(desc->pg_lseg); - lseg = pnfs_update_layout(desc->pg_inode, req->wb_context, IOMODE_RW); + lseg = pnfs_update_layout(desc->pg_inode, req->wb_context, IOMODE_RW, GFP_NOFS); ClearPageError(page); offset = 0; nbytes = desc->pg_count; @@ -1013,7 +1013,7 @@ static int nfs_flush_one(struct nfs_pageio_descriptor *desc) } req = nfs_list_entry(data->pages.next); if ((!lseg) && list_is_singular(&data->pages)) - lseg = pnfs_update_layout(desc->pg_inode, req->wb_context, IOMODE_RW); + lseg = pnfs_update_layout(desc->pg_inode, req->wb_context, IOMODE_RW, GFP_NOFS); if ((desc->pg_ioflags & FLUSH_COND_STABLE) && (desc->pg_moreio || NFS_I(desc->pg_inode)->ncommit)) diff --git a/fs/nilfs2/alloc.c b/fs/nilfs2/alloc.c index 0a0a66d98cc..f7684483785 100644 --- a/fs/nilfs2/alloc.c +++ b/fs/nilfs2/alloc.c @@ -646,7 +646,7 @@ int nilfs_palloc_freev(struct inode *inode, __u64 *entry_nrs, size_t nitems) unsigned long group, group_offset; int i, j, n, ret; - for (i = 0; i < nitems; i += n) { + for (i = 0; i < nitems; i = j) { group = nilfs_palloc_group(inode, entry_nrs[i], &group_offset); ret = nilfs_palloc_get_desc_block(inode, group, 0, &desc_bh); if (ret < 0) diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c index 643720209a9..9a3e6bbff27 100644 --- a/fs/ocfs2/cluster/heartbeat.c +++ b/fs/ocfs2/cluster/heartbeat.c @@ -539,25 +539,41 @@ static int o2hb_verify_crc(struct o2hb_region *reg, /* We want to make sure that nobody is heartbeating on top of us -- * this will help detect an invalid configuration. */ -static int o2hb_check_last_timestamp(struct o2hb_region *reg) +static void o2hb_check_last_timestamp(struct o2hb_region *reg) { - int node_num, ret; struct o2hb_disk_slot *slot; struct o2hb_disk_heartbeat_block *hb_block; + char *errstr; - node_num = o2nm_this_node(); - - ret = 1; - slot = ®->hr_slots[node_num]; + slot = ®->hr_slots[o2nm_this_node()]; /* Don't check on our 1st timestamp */ - if (slot->ds_last_time) { - hb_block = slot->ds_raw_block; + if (!slot->ds_last_time) + return; - if (le64_to_cpu(hb_block->hb_seq) != slot->ds_last_time) - ret = 0; - } + hb_block = slot->ds_raw_block; + if (le64_to_cpu(hb_block->hb_seq) == slot->ds_last_time && + le64_to_cpu(hb_block->hb_generation) == slot->ds_last_generation && + hb_block->hb_node == slot->ds_node_num) + return; - return ret; +#define ERRSTR1 "Another node is heartbeating on device" +#define ERRSTR2 "Heartbeat generation mismatch on device" +#define ERRSTR3 "Heartbeat sequence mismatch on device" + + if (hb_block->hb_node != slot->ds_node_num) + errstr = ERRSTR1; + else if (le64_to_cpu(hb_block->hb_generation) != + slot->ds_last_generation) + errstr = ERRSTR2; + else + errstr = ERRSTR3; + + mlog(ML_ERROR, "%s (%s): expected(%u:0x%llx, 0x%llx), " + "ondisk(%u:0x%llx, 0x%llx)\n", errstr, reg->hr_dev_name, + slot->ds_node_num, (unsigned long long)slot->ds_last_generation, + (unsigned long long)slot->ds_last_time, hb_block->hb_node, + (unsigned long long)le64_to_cpu(hb_block->hb_generation), + (unsigned long long)le64_to_cpu(hb_block->hb_seq)); } static inline void o2hb_prepare_block(struct o2hb_region *reg, @@ -983,9 +999,7 @@ static int o2hb_do_disk_heartbeat(struct o2hb_region *reg) /* With an up to date view of the slots, we can check that no * other node has been improperly configured to heartbeat in * our slot. */ - if (!o2hb_check_last_timestamp(reg)) - mlog(ML_ERROR, "Device \"%s\": another node is heartbeating " - "in our slot!\n", reg->hr_dev_name); + o2hb_check_last_timestamp(reg); /* fill in the proper info for our next heartbeat */ o2hb_prepare_block(reg, reg->hr_generation); @@ -999,8 +1013,8 @@ static int o2hb_do_disk_heartbeat(struct o2hb_region *reg) } i = -1; - while((i = find_next_bit(configured_nodes, O2NM_MAX_NODES, i + 1)) < O2NM_MAX_NODES) { - + while((i = find_next_bit(configured_nodes, + O2NM_MAX_NODES, i + 1)) < O2NM_MAX_NODES) { change |= o2hb_check_slot(reg, ®->hr_slots[i]); } @@ -1690,6 +1704,7 @@ static ssize_t o2hb_region_dev_write(struct o2hb_region *reg, struct file *filp = NULL; struct inode *inode = NULL; ssize_t ret = -EINVAL; + int live_threshold; if (reg->hr_bdev) goto out; @@ -1766,8 +1781,18 @@ static ssize_t o2hb_region_dev_write(struct o2hb_region *reg, * A node is considered live after it has beat LIVE_THRESHOLD * times. We're not steady until we've given them a chance * _after_ our first read. + * The default threshold is bare minimum so as to limit the delay + * during mounts. For global heartbeat, the threshold doubled for the + * first region. */ - atomic_set(®->hr_steady_iterations, O2HB_LIVE_THRESHOLD + 1); + live_threshold = O2HB_LIVE_THRESHOLD; + if (o2hb_global_heartbeat_active()) { + spin_lock(&o2hb_live_lock); + if (o2hb_pop_count(&o2hb_region_bitmap, O2NM_MAX_REGIONS) == 1) + live_threshold <<= 1; + spin_unlock(&o2hb_live_lock); + } + atomic_set(®->hr_steady_iterations, live_threshold + 1); hb_task = kthread_run(o2hb_thread, reg, "o2hb-%s", reg->hr_item.ci_name); diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c index 9fe5b8fd658..8582e3f4f12 100644 --- a/fs/ocfs2/dir.c +++ b/fs/ocfs2/dir.c @@ -2868,7 +2868,7 @@ static int ocfs2_expand_inline_dir(struct inode *dir, struct buffer_head *di_bh, bytes = blocks_wanted << sb->s_blocksize_bits; struct ocfs2_super *osb = OCFS2_SB(dir->i_sb); struct ocfs2_inode_info *oi = OCFS2_I(dir); - struct ocfs2_alloc_context *data_ac; + struct ocfs2_alloc_context *data_ac = NULL; struct ocfs2_alloc_context *meta_ac = NULL; struct buffer_head *dirdata_bh = NULL; struct buffer_head *dx_root_bh = NULL; diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c index 7540a492eab..3b179d6cbde 100644 --- a/fs/ocfs2/dlm/dlmdomain.c +++ b/fs/ocfs2/dlm/dlmdomain.c @@ -1614,7 +1614,8 @@ static int dlm_try_to_join_domain(struct dlm_ctxt *dlm) spin_unlock(&dlm->spinlock); /* Support for global heartbeat and node info was added in 1.1 */ - if (dlm_protocol.pv_major > 1 || dlm_protocol.pv_minor > 0) { + if (dlm->dlm_locking_proto.pv_major > 1 || + dlm->dlm_locking_proto.pv_minor > 0) { status = dlm_send_nodeinfo(dlm, ctxt->yes_resp_map); if (status) { mlog_errno(status); diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c index fede57ed005..84d166328cf 100644 --- a/fs/ocfs2/dlm/dlmmaster.c +++ b/fs/ocfs2/dlm/dlmmaster.c @@ -2574,6 +2574,9 @@ fail: res->state &= ~DLM_LOCK_RES_MIGRATING; wake = 1; spin_unlock(&res->spinlock); + if (dlm_is_host_down(ret)) + dlm_wait_for_node_death(dlm, target, + DLM_NODE_DEATH_WAIT_MAX); goto leave; } diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index 41565ae5285..89659d6dc20 100644 --- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -1607,6 +1607,9 @@ static void ocfs2_calc_trunc_pos(struct inode *inode, range = le32_to_cpu(rec->e_cpos) + ocfs2_rec_clusters(el, rec); if (le32_to_cpu(rec->e_cpos) >= trunc_start) { + /* + * remove an entire extent record. + */ *trunc_cpos = le32_to_cpu(rec->e_cpos); /* * Skip holes if any. @@ -1617,7 +1620,16 @@ static void ocfs2_calc_trunc_pos(struct inode *inode, *blkno = le64_to_cpu(rec->e_blkno); *trunc_end = le32_to_cpu(rec->e_cpos); } else if (range > trunc_start) { + /* + * remove a partial extent record, which means we're + * removing the last extent record. + */ *trunc_cpos = trunc_start; + /* + * skip hole if any. + */ + if (range < *trunc_end) + *trunc_end = range; *trunc_len = *trunc_end - trunc_start; coff = trunc_start - le32_to_cpu(rec->e_cpos); *blkno = le64_to_cpu(rec->e_blkno) + diff --git a/fs/ocfs2/journal.c b/fs/ocfs2/journal.c index b141a44605c..295d56454e8 100644 --- a/fs/ocfs2/journal.c +++ b/fs/ocfs2/journal.c @@ -1260,6 +1260,9 @@ void ocfs2_complete_mount_recovery(struct ocfs2_super *osb) { struct ocfs2_journal *journal = osb->journal; + if (ocfs2_is_hard_readonly(osb)) + return; + /* No need to queue up our truncate_log as regular cleanup will catch * that */ ocfs2_queue_recovery_completion(journal, osb->slot_num, diff --git a/fs/partitions/efi.c b/fs/partitions/efi.c index ac0ccb5026a..19d6750d1d6 100644 --- a/fs/partitions/efi.c +++ b/fs/partitions/efi.c @@ -348,6 +348,12 @@ static int is_gpt_valid(struct parsed_partitions *state, u64 lba, goto fail; } + /* Check that sizeof_partition_entry has the correct value */ + if (le32_to_cpu((*gpt)->sizeof_partition_entry) != sizeof(gpt_entry)) { + pr_debug("GUID Partitition Entry Size check failed.\n"); + goto fail; + } + if (!(*ptes = alloc_read_gpt_entries(state, *gpt))) goto fail; diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index 2e7addfd980..318d8654989 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -214,7 +214,7 @@ static void show_map_vma(struct seq_file *m, struct vm_area_struct *vma) int flags = vma->vm_flags; unsigned long ino = 0; unsigned long long pgoff = 0; - unsigned long start; + unsigned long start, end; dev_t dev = 0; int len; @@ -227,13 +227,15 @@ static void show_map_vma(struct seq_file *m, struct vm_area_struct *vma) /* We don't show the stack guard page in /proc/maps */ start = vma->vm_start; - if (vma->vm_flags & VM_GROWSDOWN) - if (!vma_stack_continue(vma->vm_prev, vma->vm_start)) - start += PAGE_SIZE; + if (stack_guard_page_start(vma, start)) + start += PAGE_SIZE; + end = vma->vm_end; + if (stack_guard_page_end(vma, end)) + end -= PAGE_SIZE; seq_printf(m, "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu %n", start, - vma->vm_end, + end, flags & VM_READ ? 'r' : '-', flags & VM_WRITE ? 'w' : '-', flags & VM_EXEC ? 'x' : '-', diff --git a/fs/xfs/linux-2.6/xfs_sync.c b/fs/xfs/linux-2.6/xfs_sync.c index e4f9c1b0836..3e898a48122 100644 --- a/fs/xfs/linux-2.6/xfs_sync.c +++ b/fs/xfs/linux-2.6/xfs_sync.c @@ -926,6 +926,7 @@ restart: XFS_LOOKUP_BATCH, XFS_ICI_RECLAIM_TAG); if (!nr_found) { + done = 1; rcu_read_unlock(); break; } diff --git a/fs/xfs/xfs_trans_ail.c b/fs/xfs/xfs_trans_ail.c index acdb92f14d5..5fc2380092c 100644 --- a/fs/xfs/xfs_trans_ail.c +++ b/fs/xfs/xfs_trans_ail.c @@ -346,20 +346,23 @@ xfs_ail_delete( */ STATIC void xfs_ail_worker( - struct work_struct *work) + struct work_struct *work) { - struct xfs_ail *ailp = container_of(to_delayed_work(work), + struct xfs_ail *ailp = container_of(to_delayed_work(work), struct xfs_ail, xa_work); - long tout; - xfs_lsn_t target = ailp->xa_target; - xfs_lsn_t lsn; - xfs_log_item_t *lip; - int flush_log, count, stuck; - xfs_mount_t *mp = ailp->xa_mount; + xfs_mount_t *mp = ailp->xa_mount; struct xfs_ail_cursor *cur = &ailp->xa_cursors; - int push_xfsbufd = 0; + xfs_log_item_t *lip; + xfs_lsn_t lsn; + xfs_lsn_t target; + long tout = 10; + int flush_log = 0; + int stuck = 0; + int count = 0; + int push_xfsbufd = 0; spin_lock(&ailp->xa_lock); + target = ailp->xa_target; xfs_trans_ail_cursor_init(ailp, cur); lip = xfs_trans_ail_cursor_first(ailp, cur, ailp->xa_last_pushed_lsn); if (!lip || XFS_FORCED_SHUTDOWN(mp)) { @@ -368,8 +371,7 @@ xfs_ail_worker( */ xfs_trans_ail_cursor_done(ailp, cur); spin_unlock(&ailp->xa_lock); - ailp->xa_last_pushed_lsn = 0; - return; + goto out_done; } XFS_STATS_INC(xs_push_ail); @@ -386,8 +388,7 @@ xfs_ail_worker( * lots of contention on the AIL lists. */ lsn = lip->li_lsn; - flush_log = stuck = count = 0; - while ((XFS_LSN_CMP(lip->li_lsn, target) < 0)) { + while ((XFS_LSN_CMP(lip->li_lsn, target) <= 0)) { int lock_result; /* * If we can lock the item without sleeping, unlock the AIL @@ -480,21 +481,25 @@ xfs_ail_worker( } /* assume we have more work to do in a short while */ - tout = 10; +out_done: if (!count) { /* We're past our target or empty, so idle */ ailp->xa_last_pushed_lsn = 0; /* - * Check for an updated push target before clearing the - * XFS_AIL_PUSHING_BIT. If the target changed, we've got more - * work to do. Wait a bit longer before starting that work. + * We clear the XFS_AIL_PUSHING_BIT first before checking + * whether the target has changed. If the target has changed, + * this pushes the requeue race directly onto the result of the + * atomic test/set bit, so we are guaranteed that either the + * the pusher that changed the target or ourselves will requeue + * the work (but not both). */ + clear_bit(XFS_AIL_PUSHING_BIT, &ailp->xa_flags); smp_rmb(); - if (ailp->xa_target == target) { - clear_bit(XFS_AIL_PUSHING_BIT, &ailp->xa_flags); + if (XFS_LSN_CMP(ailp->xa_target, target) == 0 || + test_and_set_bit(XFS_AIL_PUSHING_BIT, &ailp->xa_flags)) return; - } + tout = 50; } else if (XFS_LSN_CMP(lsn, target) >= 0) { /* @@ -553,7 +558,7 @@ xfs_ail_push( * the XFS_AIL_PUSHING_BIT. */ smp_wmb(); - ailp->xa_target = threshold_lsn; + xfs_trans_ail_copy_lsn(ailp, &ailp->xa_target, &threshold_lsn); if (!test_and_set_bit(XFS_AIL_PUSHING_BIT, &ailp->xa_flags)) queue_delayed_work(xfs_syncd_wq, &ailp->xa_work, 0); } diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index bd297a20ab9..077c00d94f6 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -170,6 +170,10 @@ STRUCT_ALIGN(); \ *(__tracepoints) \ /* implement dynamic printk debug */ \ + . = ALIGN(8); \ + VMLINUX_SYMBOL(__start___jump_table) = .; \ + *(__jump_table) \ + VMLINUX_SYMBOL(__stop___jump_table) = .; \ . = ALIGN(8); \ VMLINUX_SYMBOL(__start___verbose) = .; \ *(__verbose) \ @@ -228,8 +232,6 @@ \ BUG_TABLE \ \ - JUMP_TABLE \ - \ /* PCI quirks */ \ .pci_fixup : AT(ADDR(.pci_fixup) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__start_pci_fixups_early) = .; \ @@ -274,70 +276,70 @@ /* Kernel symbol table: Normal symbols */ \ __ksymtab : AT(ADDR(__ksymtab) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__start___ksymtab) = .; \ - *(__ksymtab) \ + *(SORT(___ksymtab+*)) \ VMLINUX_SYMBOL(__stop___ksymtab) = .; \ } \ \ /* Kernel symbol table: GPL-only symbols */ \ __ksymtab_gpl : AT(ADDR(__ksymtab_gpl) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__start___ksymtab_gpl) = .; \ - *(__ksymtab_gpl) \ + *(SORT(___ksymtab_gpl+*)) \ VMLINUX_SYMBOL(__stop___ksymtab_gpl) = .; \ } \ \ /* Kernel symbol table: Normal unused symbols */ \ __ksymtab_unused : AT(ADDR(__ksymtab_unused) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__start___ksymtab_unused) = .; \ - *(__ksymtab_unused) \ + *(SORT(___ksymtab_unused+*)) \ VMLINUX_SYMBOL(__stop___ksymtab_unused) = .; \ } \ \ /* Kernel symbol table: GPL-only unused symbols */ \ __ksymtab_unused_gpl : AT(ADDR(__ksymtab_unused_gpl) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__start___ksymtab_unused_gpl) = .; \ - *(__ksymtab_unused_gpl) \ + *(SORT(___ksymtab_unused_gpl+*)) \ VMLINUX_SYMBOL(__stop___ksymtab_unused_gpl) = .; \ } \ \ /* Kernel symbol table: GPL-future-only symbols */ \ __ksymtab_gpl_future : AT(ADDR(__ksymtab_gpl_future) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__start___ksymtab_gpl_future) = .; \ - *(__ksymtab_gpl_future) \ + *(SORT(___ksymtab_gpl_future+*)) \ VMLINUX_SYMBOL(__stop___ksymtab_gpl_future) = .; \ } \ \ /* Kernel symbol table: Normal symbols */ \ __kcrctab : AT(ADDR(__kcrctab) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__start___kcrctab) = .; \ - *(__kcrctab) \ + *(SORT(___kcrctab+*)) \ VMLINUX_SYMBOL(__stop___kcrctab) = .; \ } \ \ /* Kernel symbol table: GPL-only symbols */ \ __kcrctab_gpl : AT(ADDR(__kcrctab_gpl) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__start___kcrctab_gpl) = .; \ - *(__kcrctab_gpl) \ + *(SORT(___kcrctab_gpl+*)) \ VMLINUX_SYMBOL(__stop___kcrctab_gpl) = .; \ } \ \ /* Kernel symbol table: Normal unused symbols */ \ __kcrctab_unused : AT(ADDR(__kcrctab_unused) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__start___kcrctab_unused) = .; \ - *(__kcrctab_unused) \ + *(SORT(___kcrctab_unused+*)) \ VMLINUX_SYMBOL(__stop___kcrctab_unused) = .; \ } \ \ /* Kernel symbol table: GPL-only unused symbols */ \ __kcrctab_unused_gpl : AT(ADDR(__kcrctab_unused_gpl) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__start___kcrctab_unused_gpl) = .; \ - *(__kcrctab_unused_gpl) \ + *(SORT(___kcrctab_unused_gpl+*)) \ VMLINUX_SYMBOL(__stop___kcrctab_unused_gpl) = .; \ } \ \ /* Kernel symbol table: GPL-future-only symbols */ \ __kcrctab_gpl_future : AT(ADDR(__kcrctab_gpl_future) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__start___kcrctab_gpl_future) = .; \ - *(__kcrctab_gpl_future) \ + *(SORT(___kcrctab_gpl_future+*)) \ VMLINUX_SYMBOL(__stop___kcrctab_gpl_future) = .; \ } \ \ @@ -589,14 +591,6 @@ #define BUG_TABLE #endif -#define JUMP_TABLE \ - . = ALIGN(8); \ - __jump_table : AT(ADDR(__jump_table) - LOAD_OFFSET) { \ - VMLINUX_SYMBOL(__start___jump_table) = .; \ - *(__jump_table) \ - VMLINUX_SYMBOL(__stop___jump_table) = .; \ - } - #ifdef CONFIG_PM_TRACE #define TRACEDATA \ . = ALIGN(4); \ diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h index ade09d7b427..c99c3d3e781 100644 --- a/include/drm/drm_fb_helper.h +++ b/include/drm/drm_fb_helper.h @@ -127,7 +127,7 @@ void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch, int drm_fb_helper_setcmap(struct fb_cmap *cmap, struct fb_info *info); -bool drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper); +int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper); bool drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel); int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper); int drm_fb_helper_debug_enter(struct fb_info *info); diff --git a/include/drm/drm_mm.h b/include/drm/drm_mm.h index c2f93a8ae2e..564b14aa7e1 100644 --- a/include/drm/drm_mm.h +++ b/include/drm/drm_mm.h @@ -86,7 +86,7 @@ static inline bool drm_mm_initialized(struct drm_mm *mm) } #define drm_mm_for_each_node(entry, mm) list_for_each_entry(entry, \ &(mm)->head_node.node_list, \ - node_list); + node_list) #define drm_mm_for_each_scanned_node_reverse(entry, n, mm) \ for (entry = (mm)->prev_scanned_node, \ next = entry ? list_entry(entry->node_list.next, \ diff --git a/include/linux/alarmtimer.h b/include/linux/alarmtimer.h new file mode 100644 index 00000000000..c5d6095b46f --- /dev/null +++ b/include/linux/alarmtimer.h @@ -0,0 +1,40 @@ +#ifndef _LINUX_ALARMTIMER_H +#define _LINUX_ALARMTIMER_H + +#include <linux/time.h> +#include <linux/hrtimer.h> +#include <linux/timerqueue.h> +#include <linux/rtc.h> + +enum alarmtimer_type { + ALARM_REALTIME, + ALARM_BOOTTIME, + + ALARM_NUMTYPE, +}; + +/** + * struct alarm - Alarm timer structure + * @node: timerqueue node for adding to the event list this value + * also includes the expiration time. + * @period: Period for recuring alarms + * @function: Function pointer to be executed when the timer fires. + * @type: Alarm type (BOOTTIME/REALTIME) + * @enabled: Flag that represents if the alarm is set to fire or not + * @data: Internal data value. + */ +struct alarm { + struct timerqueue_node node; + ktime_t period; + void (*function)(struct alarm *); + enum alarmtimer_type type; + bool enabled; + void *data; +}; + +void alarm_init(struct alarm *alarm, enum alarmtimer_type type, + void (*function)(struct alarm *)); +void alarm_start(struct alarm *alarm, ktime_t start, ktime_t period); +void alarm_cancel(struct alarm *alarm); + +#endif diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h index b8613e806aa..01eca1794e1 100644 --- a/include/linux/bootmem.h +++ b/include/linux/bootmem.h @@ -111,6 +111,8 @@ extern void *__alloc_bootmem_low_node(pg_data_t *pgdat, __alloc_bootmem_nopanic(x, PAGE_SIZE, __pa(MAX_DMA_ADDRESS)) #define alloc_bootmem_node(pgdat, x) \ __alloc_bootmem_node(pgdat, x, SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS)) +#define alloc_bootmem_node_nopanic(pgdat, x) \ + __alloc_bootmem_node_nopanic(pgdat, x, SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS)) #define alloc_bootmem_pages_node(pgdat, x) \ __alloc_bootmem_node(pgdat, x, PAGE_SIZE, __pa(MAX_DMA_ADDRESS)) #define alloc_bootmem_pages_node_nopanic(pgdat, x) \ diff --git a/include/linux/bsearch.h b/include/linux/bsearch.h new file mode 100644 index 00000000000..90b1aa86722 --- /dev/null +++ b/include/linux/bsearch.h @@ -0,0 +1,9 @@ +#ifndef _LINUX_BSEARCH_H +#define _LINUX_BSEARCH_H + +#include <linux/types.h> + +void *bsearch(const void *key, const void *base, size_t num, size_t size, + int (*cmp)(const void *key, const void *elt)); + +#endif /* _LINUX_BSEARCH_H */ diff --git a/include/linux/capability.h b/include/linux/capability.h index 16ee8b49a20..4554db0cde8 100644 --- a/include/linux/capability.h +++ b/include/linux/capability.h @@ -355,7 +355,12 @@ struct cpu_vfs_cap_data { #define CAP_SYSLOG 34 -#define CAP_LAST_CAP CAP_SYSLOG +/* Allow triggering something that will wake the system */ + +#define CAP_WAKE_ALARM 35 + + +#define CAP_LAST_CAP CAP_WAKE_ALARM #define cap_valid(x) ((x) >= 0 && (x) <= CAP_LAST_CAP) @@ -546,18 +551,7 @@ extern bool has_capability_noaudit(struct task_struct *t, int cap); extern bool capable(int cap); extern bool ns_capable(struct user_namespace *ns, int cap); extern bool task_ns_capable(struct task_struct *t, int cap); - -/** - * nsown_capable - Check superior capability to one's own user_ns - * @cap: The capability in question - * - * Return true if the current task has the given superior capability - * targeted at its own user namespace. - */ -static inline bool nsown_capable(int cap) -{ - return ns_capable(current_user_ns(), cap); -} +extern bool nsown_capable(int cap); /* audit system wants to get cap info from files as well */ extern int get_vfs_caps_from_disk(const struct dentry *dentry, struct cpu_vfs_cap_data *cpu_caps); diff --git a/include/linux/clockchips.h b/include/linux/clockchips.h index fc53492b6ad..d6733e27af3 100644 --- a/include/linux/clockchips.h +++ b/include/linux/clockchips.h @@ -56,46 +56,52 @@ enum clock_event_nofitiers { /** * struct clock_event_device - clock event device descriptor - * @name: ptr to clock event name - * @features: features + * @event_handler: Assigned by the framework to be called by the low + * level handler of the event source + * @set_next_event: set next event function + * @next_event: local storage for the next event in oneshot mode * @max_delta_ns: maximum delta value in ns * @min_delta_ns: minimum delta value in ns * @mult: nanosecond to cycles multiplier * @shift: nanoseconds to cycles divisor (power of two) + * @mode: operating mode assigned by the management code + * @features: features + * @retries: number of forced programming retries + * @set_mode: set mode function + * @broadcast: function to broadcast events + * @min_delta_ticks: minimum delta value in ticks stored for reconfiguration + * @max_delta_ticks: maximum delta value in ticks stored for reconfiguration + * @name: ptr to clock event name * @rating: variable to rate clock event devices * @irq: IRQ number (only for non CPU local devices) * @cpumask: cpumask to indicate for which CPUs this device works - * @set_next_event: set next event function - * @set_mode: set mode function - * @event_handler: Assigned by the framework to be called by the low - * level handler of the event source - * @broadcast: function to broadcast events * @list: list head for the management code - * @mode: operating mode assigned by the management code - * @next_event: local storage for the next event in oneshot mode - * @retries: number of forced programming retries */ struct clock_event_device { - const char *name; - unsigned int features; + void (*event_handler)(struct clock_event_device *); + int (*set_next_event)(unsigned long evt, + struct clock_event_device *); + ktime_t next_event; u64 max_delta_ns; u64 min_delta_ns; u32 mult; u32 shift; + enum clock_event_mode mode; + unsigned int features; + unsigned long retries; + + void (*broadcast)(const struct cpumask *mask); + void (*set_mode)(enum clock_event_mode mode, + struct clock_event_device *); + unsigned long min_delta_ticks; + unsigned long max_delta_ticks; + + const char *name; int rating; int irq; const struct cpumask *cpumask; - int (*set_next_event)(unsigned long evt, - struct clock_event_device *); - void (*set_mode)(enum clock_event_mode mode, - struct clock_event_device *); - void (*event_handler)(struct clock_event_device *); - void (*broadcast)(const struct cpumask *mask); struct list_head list; - enum clock_event_mode mode; - ktime_t next_event; - unsigned long retries; -}; +} ____cacheline_aligned; /* * Calculate a multiplication factor for scaled math, which is used to convert @@ -122,6 +128,12 @@ extern u64 clockevent_delta2ns(unsigned long latch, struct clock_event_device *evt); extern void clockevents_register_device(struct clock_event_device *dev); +extern void clockevents_config_and_register(struct clock_event_device *dev, + u32 freq, unsigned long min_delta, + unsigned long max_delta); + +extern int clockevents_update_freq(struct clock_event_device *ce, u32 freq); + extern void clockevents_exchange_device(struct clock_event_device *old, struct clock_event_device *new); extern void clockevents_set_mode(struct clock_event_device *dev, diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h index c37b21ad5a3..c918fbd33ee 100644 --- a/include/linux/clocksource.h +++ b/include/linux/clocksource.h @@ -159,42 +159,38 @@ extern u64 timecounter_cyc2time(struct timecounter *tc, */ struct clocksource { /* - * First part of structure is read mostly + * Hotpath data, fits in a single cache line when the + * clocksource itself is cacheline aligned. */ - char *name; - struct list_head list; - int rating; cycle_t (*read)(struct clocksource *cs); - int (*enable)(struct clocksource *cs); - void (*disable)(struct clocksource *cs); + cycle_t cycle_last; cycle_t mask; u32 mult; u32 shift; u64 max_idle_ns; - unsigned long flags; - cycle_t (*vread)(void); - void (*suspend)(struct clocksource *cs); - void (*resume)(struct clocksource *cs); + #ifdef CONFIG_IA64 void *fsys_mmio; /* used by fsyscall asm code */ #define CLKSRC_FSYS_MMIO_SET(mmio, addr) ((mmio) = (addr)) #else #define CLKSRC_FSYS_MMIO_SET(mmio, addr) do { } while (0) #endif - - /* - * Second part is written at each timer interrupt - * Keep it in a different cache line to dirty no - * more than one cache line. - */ - cycle_t cycle_last ____cacheline_aligned_in_smp; + const char *name; + struct list_head list; + int rating; + cycle_t (*vread)(void); + int (*enable)(struct clocksource *cs); + void (*disable)(struct clocksource *cs); + unsigned long flags; + void (*suspend)(struct clocksource *cs); + void (*resume)(struct clocksource *cs); #ifdef CONFIG_CLOCKSOURCE_WATCHDOG /* Watchdog related data, used by the framework */ struct list_head wd_list; cycle_t wd_last; #endif -}; +} ____cacheline_aligned; /* * Clock source flags bits:: @@ -341,4 +337,6 @@ static inline void update_vsyscall_tz(void) extern void timekeeping_notify(struct clocksource *clock); +extern int clocksource_i8253_init(void); + #endif /* _LINUX_CLOCKSOURCE_H */ diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index 9343dd3de85..11be48e0d16 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -3,7 +3,7 @@ * * Copyright (C) 2001 Russell King * (C) 2002 - 2003 Dominik Brodowski <linux@brodo.de> - * + * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. @@ -56,9 +56,9 @@ static inline int cpufreq_unregister_notifier(struct notifier_block *nb, #define CPUFREQ_POLICY_POWERSAVE (1) #define CPUFREQ_POLICY_PERFORMANCE (2) -/* Frequency values here are CPU kHz so that hardware which doesn't run - * with some frequencies can complain without having to guess what per - * cent / per mille means. +/* Frequency values here are CPU kHz so that hardware which doesn't run + * with some frequencies can complain without having to guess what per + * cent / per mille means. * Maximum transition latency is in nanoseconds - if it's unknown, * CPUFREQ_ETERNAL shall be used. */ @@ -72,13 +72,15 @@ extern struct kobject *cpufreq_global_kobject; struct cpufreq_cpuinfo { unsigned int max_freq; unsigned int min_freq; - unsigned int transition_latency; /* in 10^(-9) s = nanoseconds */ + + /* in 10^(-9) s = nanoseconds */ + unsigned int transition_latency; }; struct cpufreq_real_policy { unsigned int min; /* in kHz */ unsigned int max; /* in kHz */ - unsigned int policy; /* see above */ + unsigned int policy; /* see above */ struct cpufreq_governor *governor; /* see below */ }; @@ -94,7 +96,7 @@ struct cpufreq_policy { unsigned int max; /* in kHz */ unsigned int cur; /* in kHz, only needed if cpufreq * governors are used */ - unsigned int policy; /* see above */ + unsigned int policy; /* see above */ struct cpufreq_governor *governor; /* see below */ struct work_struct update; /* if update_policy() needs to be @@ -167,11 +169,11 @@ static inline unsigned long cpufreq_scale(unsigned long old, u_int div, u_int mu struct cpufreq_governor { char name[CPUFREQ_NAME_LEN]; - int (*governor) (struct cpufreq_policy *policy, + int (*governor) (struct cpufreq_policy *policy, unsigned int event); ssize_t (*show_setspeed) (struct cpufreq_policy *policy, char *buf); - int (*store_setspeed) (struct cpufreq_policy *policy, + int (*store_setspeed) (struct cpufreq_policy *policy, unsigned int freq); unsigned int max_transition_latency; /* HW must be able to switch to next freq faster than this value in nano secs or we @@ -180,7 +182,8 @@ struct cpufreq_governor { struct module *owner; }; -/* pass a target to the cpufreq driver +/* + * Pass a target to the cpufreq driver. */ extern int cpufreq_driver_target(struct cpufreq_policy *policy, unsigned int target_freq, @@ -237,9 +240,9 @@ struct cpufreq_driver { /* flags */ -#define CPUFREQ_STICKY 0x01 /* the driver isn't removed even if +#define CPUFREQ_STICKY 0x01 /* the driver isn't removed even if * all ->init() calls failed */ -#define CPUFREQ_CONST_LOOPS 0x02 /* loops_per_jiffy or other kernel +#define CPUFREQ_CONST_LOOPS 0x02 /* loops_per_jiffy or other kernel * "constants" aren't affected by * frequency transitions */ #define CPUFREQ_PM_NO_WARN 0x04 /* don't warn on suspend/resume speed @@ -252,7 +255,7 @@ int cpufreq_unregister_driver(struct cpufreq_driver *driver_data); void cpufreq_notify_transition(struct cpufreq_freqs *freqs, unsigned int state); -static inline void cpufreq_verify_within_limits(struct cpufreq_policy *policy, unsigned int min, unsigned int max) +static inline void cpufreq_verify_within_limits(struct cpufreq_policy *policy, unsigned int min, unsigned int max) { if (policy->min < min) policy->min = min; @@ -386,34 +389,15 @@ int cpufreq_frequency_table_target(struct cpufreq_policy *policy, /* the following 3 funtions are for cpufreq core use only */ struct cpufreq_frequency_table *cpufreq_frequency_get_table(unsigned int cpu); struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu); -void cpufreq_cpu_put (struct cpufreq_policy *data); +void cpufreq_cpu_put(struct cpufreq_policy *data); /* the following are really really optional */ extern struct freq_attr cpufreq_freq_attr_scaling_available_freqs; -void cpufreq_frequency_table_get_attr(struct cpufreq_frequency_table *table, +void cpufreq_frequency_table_get_attr(struct cpufreq_frequency_table *table, unsigned int cpu); void cpufreq_frequency_table_put_attr(unsigned int cpu); -/********************************************************************* - * UNIFIED DEBUG HELPERS * - *********************************************************************/ - -#define CPUFREQ_DEBUG_CORE 1 -#define CPUFREQ_DEBUG_DRIVER 2 -#define CPUFREQ_DEBUG_GOVERNOR 4 - -#ifdef CONFIG_CPU_FREQ_DEBUG - -extern void cpufreq_debug_printk(unsigned int type, const char *prefix, - const char *fmt, ...); - -#else - -#define cpufreq_debug_printk(msg...) do { } while(0) - -#endif /* CONFIG_CPU_FREQ_DEBUG */ - #endif /* _LINUX_CPUFREQ_H */ diff --git a/include/linux/cred.h b/include/linux/cred.h index 9aeeb0ba200..be16b61283c 100644 --- a/include/linux/cred.h +++ b/include/linux/cred.h @@ -146,6 +146,7 @@ struct cred { void *security; /* subjective LSM security */ #endif struct user_struct *user; /* real user ID subscription */ + struct user_namespace *user_ns; /* cached user->user_ns */ struct group_info *group_info; /* supplementary groups for euid/fsgid */ struct rcu_head rcu; /* RCU deletion hook */ }; @@ -354,10 +355,15 @@ static inline void put_cred(const struct cred *_cred) #define current_fsgid() (current_cred_xxx(fsgid)) #define current_cap() (current_cred_xxx(cap_effective)) #define current_user() (current_cred_xxx(user)) -#define _current_user_ns() (current_cred_xxx(user)->user_ns) #define current_security() (current_cred_xxx(security)) -extern struct user_namespace *current_user_ns(void); +#ifdef CONFIG_USER_NS +#define current_user_ns() (current_cred_xxx(user_ns)) +#else +extern struct user_namespace init_user_ns; +#define current_user_ns() (&init_user_ns) +#endif + #define current_uid_gid(_uid, _gid) \ do { \ diff --git a/include/linux/device.h b/include/linux/device.h index ab8dfc09570..0d753500082 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -442,7 +442,6 @@ struct device { struct dev_archdata archdata; struct device_node *of_node; /* associated device tree node */ - const struct of_device_id *of_match; /* matching of_device_id from driver */ dev_t devt; /* dev_t, creates the sysfs "dev" */ @@ -633,13 +632,6 @@ static inline int devtmpfs_mount(const char *mountpoint) { return 0; } /* drivers/base/power/shutdown.c */ extern void device_shutdown(void); -#ifndef CONFIG_ARCH_NO_SYSDEV_OPS -/* drivers/base/sys.c */ -extern void sysdev_shutdown(void); -#else -static inline void sysdev_shutdown(void) { } -#endif - /* debugging and troubleshooting/diagnostic helpers. */ extern const char *dev_driver_string(const struct device *dev); diff --git a/include/linux/dynamic_debug.h b/include/linux/dynamic_debug.h index 0c9653f11c1..e747ecd48e1 100644 --- a/include/linux/dynamic_debug.h +++ b/include/linux/dynamic_debug.h @@ -1,8 +1,6 @@ #ifndef _DYNAMIC_DEBUG_H #define _DYNAMIC_DEBUG_H -#include <linux/jump_label.h> - /* dynamic_printk_enabled, and dynamic_printk_enabled2 are bitmasks in which * bit n is set to 1 if any modname hashes into the bucket n, 0 otherwise. They * use independent hash functions, to reduce the chance of false positives. diff --git a/include/linux/fb.h b/include/linux/fb.h index df728c1c29e..6a827487717 100644 --- a/include/linux/fb.h +++ b/include/linux/fb.h @@ -832,6 +832,7 @@ struct fb_tile_ops { #define FBINFO_CAN_FORCE_OUTPUT 0x200000 struct fb_info { + atomic_t count; int node; int flags; struct mutex lock; /* Lock for open/release/ioctl funcs */ diff --git a/include/linux/flex_array.h b/include/linux/flex_array.h index 70e4efabe0f..ebeb2f3ad06 100644 --- a/include/linux/flex_array.h +++ b/include/linux/flex_array.h @@ -61,7 +61,7 @@ struct flex_array { struct flex_array *flex_array_alloc(int element_size, unsigned int total, gfp_t flags); int flex_array_prealloc(struct flex_array *fa, unsigned int start, - unsigned int end, gfp_t flags); + unsigned int nr_elements, gfp_t flags); void flex_array_free(struct flex_array *fa); void flex_array_free_parts(struct flex_array *fa); int flex_array_put(struct flex_array *fa, unsigned int element_nr, void *src, diff --git a/include/linux/fs.h b/include/linux/fs.h index dbd860af080..cdf9495df20 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -358,7 +358,6 @@ struct inodes_stat_t { #define FS_EXTENT_FL 0x00080000 /* Extents */ #define FS_DIRECTIO_FL 0x00100000 /* Use direct i/o */ #define FS_NOCOW_FL 0x00800000 /* Do not cow file */ -#define FS_COW_FL 0x02000000 /* Cow file */ #define FS_RESERVED_FL 0x80000000 /* reserved for ext2 lib */ #define FS_FL_USER_VISIBLE 0x0003DFFF /* User visible flags */ diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index ca29e03c1fa..9d88e1cb5db 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -29,9 +29,22 @@ ftrace_enable_sysctl(struct ctl_table *table, int write, typedef void (*ftrace_func_t)(unsigned long ip, unsigned long parent_ip); +struct ftrace_hash; + +enum { + FTRACE_OPS_FL_ENABLED = 1 << 0, + FTRACE_OPS_FL_GLOBAL = 1 << 1, + FTRACE_OPS_FL_DYNAMIC = 1 << 2, +}; + struct ftrace_ops { - ftrace_func_t func; - struct ftrace_ops *next; + ftrace_func_t func; + struct ftrace_ops *next; + unsigned long flags; +#ifdef CONFIG_DYNAMIC_FTRACE + struct ftrace_hash *notrace_hash; + struct ftrace_hash *filter_hash; +#endif }; extern int function_trace_stop; @@ -146,14 +159,13 @@ extern void unregister_ftrace_function_probe_all(char *glob); extern int ftrace_text_reserved(void *start, void *end); enum { - FTRACE_FL_FREE = (1 << 0), - FTRACE_FL_FAILED = (1 << 1), - FTRACE_FL_FILTER = (1 << 2), - FTRACE_FL_ENABLED = (1 << 3), - FTRACE_FL_NOTRACE = (1 << 4), - FTRACE_FL_CONVERTED = (1 << 5), + FTRACE_FL_ENABLED = (1 << 30), + FTRACE_FL_FREE = (1 << 31), }; +#define FTRACE_FL_MASK (0x3UL << 30) +#define FTRACE_REF_MAX ((1 << 30) - 1) + struct dyn_ftrace { union { unsigned long ip; /* address of mcount call-site */ @@ -167,7 +179,12 @@ struct dyn_ftrace { }; int ftrace_force_update(void); -void ftrace_set_filter(unsigned char *buf, int len, int reset); +void ftrace_set_filter(struct ftrace_ops *ops, unsigned char *buf, + int len, int reset); +void ftrace_set_notrace(struct ftrace_ops *ops, unsigned char *buf, + int len, int reset); +void ftrace_set_global_filter(unsigned char *buf, int len, int reset); +void ftrace_set_global_notrace(unsigned char *buf, int len, int reset); int register_ftrace_command(struct ftrace_func_command *cmd); int unregister_ftrace_command(struct ftrace_func_command *cmd); diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h index 22b32af1b5e..b5a550a39a7 100644 --- a/include/linux/ftrace_event.h +++ b/include/linux/ftrace_event.h @@ -37,6 +37,7 @@ struct trace_entry { unsigned char flags; unsigned char preempt_count; int pid; + int padding; }; #define FTRACE_MAX_EVENT \ diff --git a/include/linux/gfp.h b/include/linux/gfp.h index bfb8f934521..56d8fc87fbb 100644 --- a/include/linux/gfp.h +++ b/include/linux/gfp.h @@ -353,6 +353,8 @@ extern unsigned long get_zeroed_page(gfp_t gfp_mask); void *alloc_pages_exact(size_t size, gfp_t gfp_mask); void free_pages_exact(void *virt, size_t size); +/* This is different from alloc_pages_exact_node !!! */ +void *alloc_pages_exact_nid(int nid, size_t size, gfp_t gfp_mask); #define __get_free_page(gfp_mask) \ __get_free_pages((gfp_mask), 0) diff --git a/include/linux/init.h b/include/linux/init.h index 577671c5515..9146f39cddd 100644 --- a/include/linux/init.h +++ b/include/linux/init.h @@ -79,29 +79,29 @@ #define __exitused __used #endif -#define __exit __section(.exit.text) __exitused __cold +#define __exit __section(.exit.text) __exitused __cold notrace /* Used for HOTPLUG */ -#define __devinit __section(.devinit.text) __cold +#define __devinit __section(.devinit.text) __cold notrace #define __devinitdata __section(.devinit.data) #define __devinitconst __section(.devinit.rodata) -#define __devexit __section(.devexit.text) __exitused __cold +#define __devexit __section(.devexit.text) __exitused __cold notrace #define __devexitdata __section(.devexit.data) #define __devexitconst __section(.devexit.rodata) /* Used for HOTPLUG_CPU */ -#define __cpuinit __section(.cpuinit.text) __cold +#define __cpuinit __section(.cpuinit.text) __cold notrace #define __cpuinitdata __section(.cpuinit.data) #define __cpuinitconst __section(.cpuinit.rodata) -#define __cpuexit __section(.cpuexit.text) __exitused __cold +#define __cpuexit __section(.cpuexit.text) __exitused __cold notrace #define __cpuexitdata __section(.cpuexit.data) #define __cpuexitconst __section(.cpuexit.rodata) /* Used for MEMORY_HOTPLUG */ -#define __meminit __section(.meminit.text) __cold +#define __meminit __section(.meminit.text) __cold notrace #define __meminitdata __section(.meminit.data) #define __meminitconst __section(.meminit.rodata) -#define __memexit __section(.memexit.text) __exitused __cold +#define __memexit __section(.memexit.text) __exitused __cold notrace #define __memexitdata __section(.memexit.data) #define __memexitconst __section(.memexit.rodata) diff --git a/include/linux/init_task.h b/include/linux/init_task.h index caa151fbebb..689496bb665 100644 --- a/include/linux/init_task.h +++ b/include/linux/init_task.h @@ -134,7 +134,6 @@ extern struct cred init_cred; .stack = &init_thread_info, \ .usage = ATOMIC_INIT(2), \ .flags = PF_KTHREAD, \ - .lock_depth = -1, \ .prio = MAX_PRIO-20, \ .static_prio = MAX_PRIO-20, \ .normal_prio = MAX_PRIO-20, \ diff --git a/include/linux/irq.h b/include/linux/irq.h index 09a308072f5..8b453844663 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -53,12 +53,13 @@ typedef void (*irq_preflow_handler_t)(struct irq_data *data); * Bits which can be modified via irq_set/clear/modify_status_flags() * IRQ_LEVEL - Interrupt is level type. Will be also * updated in the code when the above trigger - * bits are modified via set_irq_type() + * bits are modified via irq_set_irq_type() * IRQ_PER_CPU - Mark an interrupt PER_CPU. Will protect * it from affinity setting * IRQ_NOPROBE - Interrupt cannot be probed by autoprobing * IRQ_NOREQUEST - Interrupt cannot be requested via * request_irq() + * IRQ_NOTHREAD - Interrupt cannot be threaded * IRQ_NOAUTOEN - Interrupt is not automatically enabled in * request/setup_irq() * IRQ_NO_BALANCING - Interrupt cannot be balanced (affinity set) @@ -85,6 +86,7 @@ enum { IRQ_NO_BALANCING = (1 << 13), IRQ_MOVE_PCNTXT = (1 << 14), IRQ_NESTED_THREAD = (1 << 15), + IRQ_NOTHREAD = (1 << 16), }; #define IRQF_MODIFY_MASK \ @@ -261,23 +263,6 @@ static inline void irqd_clr_chained_irq_inprogress(struct irq_data *d) * struct irq_chip - hardware interrupt chip descriptor * * @name: name for /proc/interrupts - * @startup: deprecated, replaced by irq_startup - * @shutdown: deprecated, replaced by irq_shutdown - * @enable: deprecated, replaced by irq_enable - * @disable: deprecated, replaced by irq_disable - * @ack: deprecated, replaced by irq_ack - * @mask: deprecated, replaced by irq_mask - * @mask_ack: deprecated, replaced by irq_mask_ack - * @unmask: deprecated, replaced by irq_unmask - * @eoi: deprecated, replaced by irq_eoi - * @end: deprecated, will go away with __do_IRQ() - * @set_affinity: deprecated, replaced by irq_set_affinity - * @retrigger: deprecated, replaced by irq_retrigger - * @set_type: deprecated, replaced by irq_set_type - * @set_wake: deprecated, replaced by irq_wake - * @bus_lock: deprecated, replaced by irq_bus_lock - * @bus_sync_unlock: deprecated, replaced by irq_bus_sync_unlock - * * @irq_startup: start up the interrupt (defaults to ->enable if NULL) * @irq_shutdown: shut down the interrupt (defaults to ->disable if NULL) * @irq_enable: enable the interrupt (defaults to chip->unmask if NULL) @@ -295,6 +280,9 @@ static inline void irqd_clr_chained_irq_inprogress(struct irq_data *d) * @irq_bus_sync_unlock:function to sync and unlock slow bus (i2c) chips * @irq_cpu_online: configure an interrupt source for a secondary CPU * @irq_cpu_offline: un-configure an interrupt source for a secondary CPU + * @irq_suspend: function called from core code on suspend once per chip + * @irq_resume: function called from core code on resume once per chip + * @irq_pm_shutdown: function called from core code on shutdown once per chip * @irq_print_chip: optional to print special chip info in show_interrupts * @flags: chip specific flags * @@ -324,6 +312,10 @@ struct irq_chip { void (*irq_cpu_online)(struct irq_data *data); void (*irq_cpu_offline)(struct irq_data *data); + void (*irq_suspend)(struct irq_data *data); + void (*irq_resume)(struct irq_data *data); + void (*irq_pm_shutdown)(struct irq_data *data); + void (*irq_print_chip)(struct irq_data *data, struct seq_file *p); unsigned long flags; @@ -439,7 +431,7 @@ irq_set_handler(unsigned int irq, irq_flow_handler_t handle) /* * Set a highlevel chained flow handler for a given IRQ. * (a chained handler is automatically enabled and set to - * IRQ_NOREQUEST and IRQ_NOPROBE) + * IRQ_NOREQUEST, IRQ_NOPROBE, and IRQ_NOTHREAD) */ static inline void irq_set_chained_handler(unsigned int irq, irq_flow_handler_t handle) @@ -469,6 +461,16 @@ static inline void irq_set_probe(unsigned int irq) irq_modify_status(irq, IRQ_NOPROBE, 0); } +static inline void irq_set_nothread(unsigned int irq) +{ + irq_modify_status(irq, 0, IRQ_NOTHREAD); +} + +static inline void irq_set_thread(unsigned int irq) +{ + irq_modify_status(irq, IRQ_NOTHREAD, 0); +} + static inline void irq_set_nested_thread(unsigned int irq, bool nest) { if (nest) @@ -573,6 +575,145 @@ static inline int irq_reserve_irq(unsigned int irq) return irq_reserve_irqs(irq, 1); } +#ifndef irq_reg_writel +# define irq_reg_writel(val, addr) writel(val, addr) +#endif +#ifndef irq_reg_readl +# define irq_reg_readl(addr) readl(addr) +#endif + +/** + * struct irq_chip_regs - register offsets for struct irq_gci + * @enable: Enable register offset to reg_base + * @disable: Disable register offset to reg_base + * @mask: Mask register offset to reg_base + * @ack: Ack register offset to reg_base + * @eoi: Eoi register offset to reg_base + * @type: Type configuration register offset to reg_base + * @polarity: Polarity configuration register offset to reg_base + */ +struct irq_chip_regs { + unsigned long enable; + unsigned long disable; + unsigned long mask; + unsigned long ack; + unsigned long eoi; + unsigned long type; + unsigned long polarity; +}; + +/** + * struct irq_chip_type - Generic interrupt chip instance for a flow type + * @chip: The real interrupt chip which provides the callbacks + * @regs: Register offsets for this chip + * @handler: Flow handler associated with this chip + * @type: Chip can handle these flow types + * + * A irq_generic_chip can have several instances of irq_chip_type when + * it requires different functions and register offsets for different + * flow types. + */ +struct irq_chip_type { + struct irq_chip chip; + struct irq_chip_regs regs; + irq_flow_handler_t handler; + u32 type; +}; + +/** + * struct irq_chip_generic - Generic irq chip data structure + * @lock: Lock to protect register and cache data access + * @reg_base: Register base address (virtual) + * @irq_base: Interrupt base nr for this chip + * @irq_cnt: Number of interrupts handled by this chip + * @mask_cache: Cached mask register + * @type_cache: Cached type register + * @polarity_cache: Cached polarity register + * @wake_enabled: Interrupt can wakeup from suspend + * @wake_active: Interrupt is marked as an wakeup from suspend source + * @num_ct: Number of available irq_chip_type instances (usually 1) + * @private: Private data for non generic chip callbacks + * @list: List head for keeping track of instances + * @chip_types: Array of interrupt irq_chip_types + * + * Note, that irq_chip_generic can have multiple irq_chip_type + * implementations which can be associated to a particular irq line of + * an irq_chip_generic instance. That allows to share and protect + * state in an irq_chip_generic instance when we need to implement + * different flow mechanisms (level/edge) for it. + */ +struct irq_chip_generic { + raw_spinlock_t lock; + void __iomem *reg_base; + unsigned int irq_base; + unsigned int irq_cnt; + u32 mask_cache; + u32 type_cache; + u32 polarity_cache; + u32 wake_enabled; + u32 wake_active; + unsigned int num_ct; + void *private; + struct list_head list; + struct irq_chip_type chip_types[0]; +}; + +/** + * enum irq_gc_flags - Initialization flags for generic irq chips + * @IRQ_GC_INIT_MASK_CACHE: Initialize the mask_cache by reading mask reg + * @IRQ_GC_INIT_NESTED_LOCK: Set the lock class of the irqs to nested for + * irq chips which need to call irq_set_wake() on + * the parent irq. Usually GPIO implementations + */ +enum irq_gc_flags { + IRQ_GC_INIT_MASK_CACHE = 1 << 0, + IRQ_GC_INIT_NESTED_LOCK = 1 << 1, +}; + +/* Generic chip callback functions */ +void irq_gc_noop(struct irq_data *d); +void irq_gc_mask_disable_reg(struct irq_data *d); +void irq_gc_mask_set_bit(struct irq_data *d); +void irq_gc_mask_clr_bit(struct irq_data *d); +void irq_gc_unmask_enable_reg(struct irq_data *d); +void irq_gc_ack(struct irq_data *d); +void irq_gc_mask_disable_reg_and_ack(struct irq_data *d); +void irq_gc_eoi(struct irq_data *d); +int irq_gc_set_wake(struct irq_data *d, unsigned int on); + +/* Setup functions for irq_chip_generic */ +struct irq_chip_generic * +irq_alloc_generic_chip(const char *name, int nr_ct, unsigned int irq_base, + void __iomem *reg_base, irq_flow_handler_t handler); +void irq_setup_generic_chip(struct irq_chip_generic *gc, u32 msk, + enum irq_gc_flags flags, unsigned int clr, + unsigned int set); +int irq_setup_alt_chip(struct irq_data *d, unsigned int type); +void irq_remove_generic_chip(struct irq_chip_generic *gc, u32 msk, + unsigned int clr, unsigned int set); + +static inline struct irq_chip_type *irq_data_get_chip_type(struct irq_data *d) +{ + return container_of(d->chip, struct irq_chip_type, chip); +} + +#define IRQ_MSK(n) (u32)((n) < 32 ? ((1 << (n)) - 1) : UINT_MAX) + +#ifdef CONFIG_SMP +static inline void irq_gc_lock(struct irq_chip_generic *gc) +{ + raw_spin_lock(&gc->lock); +} + +static inline void irq_gc_unlock(struct irq_chip_generic *gc) +{ + raw_spin_unlock(&gc->lock); +} +#else +static inline void irq_gc_lock(struct irq_chip_generic *gc) { } +static inline void irq_gc_unlock(struct irq_chip_generic *gc) { } +#endif + #endif /* CONFIG_GENERIC_HARDIRQS */ #endif /* !CONFIG_S390 */ diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h index a082905b5eb..2d921b35212 100644 --- a/include/linux/irqdesc.h +++ b/include/linux/irqdesc.h @@ -16,16 +16,18 @@ struct timer_rand_state; * @irq_data: per irq and chip data passed down to chip functions * @timer_rand_state: pointer to timer rand state struct * @kstat_irqs: irq stats per cpu - * @handle_irq: highlevel irq-events handler [if NULL, __do_IRQ()] + * @handle_irq: highlevel irq-events handler + * @preflow_handler: handler called before the flow handler (currently used by sparc) * @action: the irq action chain * @status: status information * @core_internal_state__do_not_mess_with_it: core internal status information * @depth: disable-depth, for nested irq_disable() calls - * @wake_depth: enable depth, for multiple set_irq_wake() callers + * @wake_depth: enable depth, for multiple irq_set_irq_wake() callers * @irq_count: stats field to detect stalled irqs * @last_unhandled: aging timer for unhandled count * @irqs_unhandled: stats field for spurious unhandled interrupts * @lock: locking for SMP + * @affinity_hint: hint to user space for preferred irq affinity * @affinity_notify: context for notification of affinity changes * @pending_mask: pending rebalanced interrupts * @threads_oneshot: bitfield to handle shared oneshot threads @@ -109,10 +111,7 @@ static inline void generic_handle_irq_desc(unsigned int irq, struct irq_desc *de desc->handle_irq(irq, desc); } -static inline void generic_handle_irq(unsigned int irq) -{ - generic_handle_irq_desc(irq, irq_to_desc(irq)); -} +int generic_handle_irq(unsigned int irq); /* Test to see if a driver has successfully requested an irq */ static inline int irq_has_action(unsigned int irq) diff --git a/include/linux/jump_label.h b/include/linux/jump_label.h index 7880f18e4b8..83e745f3ead 100644 --- a/include/linux/jump_label.h +++ b/include/linux/jump_label.h @@ -1,20 +1,43 @@ #ifndef _LINUX_JUMP_LABEL_H #define _LINUX_JUMP_LABEL_H +#include <linux/types.h> +#include <linux/compiler.h> + #if defined(CC_HAVE_ASM_GOTO) && defined(CONFIG_JUMP_LABEL) + +struct jump_label_key { + atomic_t enabled; + struct jump_entry *entries; +#ifdef CONFIG_MODULES + struct jump_label_mod *next; +#endif +}; + # include <asm/jump_label.h> # define HAVE_JUMP_LABEL #endif enum jump_label_type { + JUMP_LABEL_DISABLE = 0, JUMP_LABEL_ENABLE, - JUMP_LABEL_DISABLE }; struct module; #ifdef HAVE_JUMP_LABEL +#ifdef CONFIG_MODULES +#define JUMP_LABEL_INIT {{ 0 }, NULL, NULL} +#else +#define JUMP_LABEL_INIT {{ 0 }, NULL} +#endif + +static __always_inline bool static_branch(struct jump_label_key *key) +{ + return arch_static_branch(key); +} + extern struct jump_entry __start___jump_table[]; extern struct jump_entry __stop___jump_table[]; @@ -23,37 +46,37 @@ extern void jump_label_unlock(void); extern void arch_jump_label_transform(struct jump_entry *entry, enum jump_label_type type); extern void arch_jump_label_text_poke_early(jump_label_t addr); -extern void jump_label_update(unsigned long key, enum jump_label_type type); -extern void jump_label_apply_nops(struct module *mod); extern int jump_label_text_reserved(void *start, void *end); +extern void jump_label_inc(struct jump_label_key *key); +extern void jump_label_dec(struct jump_label_key *key); +extern bool jump_label_enabled(struct jump_label_key *key); +extern void jump_label_apply_nops(struct module *mod); -#define jump_label_enable(key) \ - jump_label_update((unsigned long)key, JUMP_LABEL_ENABLE); +#else -#define jump_label_disable(key) \ - jump_label_update((unsigned long)key, JUMP_LABEL_DISABLE); +#include <asm/atomic.h> -#else +#define JUMP_LABEL_INIT {ATOMIC_INIT(0)} -#define JUMP_LABEL(key, label) \ -do { \ - if (unlikely(*key)) \ - goto label; \ -} while (0) +struct jump_label_key { + atomic_t enabled; +}; -#define jump_label_enable(cond_var) \ -do { \ - *(cond_var) = 1; \ -} while (0) +static __always_inline bool static_branch(struct jump_label_key *key) +{ + if (unlikely(atomic_read(&key->enabled))) + return true; + return false; +} -#define jump_label_disable(cond_var) \ -do { \ - *(cond_var) = 0; \ -} while (0) +static inline void jump_label_inc(struct jump_label_key *key) +{ + atomic_inc(&key->enabled); +} -static inline int jump_label_apply_nops(struct module *mod) +static inline void jump_label_dec(struct jump_label_key *key) { - return 0; + atomic_dec(&key->enabled); } static inline int jump_label_text_reserved(void *start, void *end) @@ -64,16 +87,16 @@ static inline int jump_label_text_reserved(void *start, void *end) static inline void jump_label_lock(void) {} static inline void jump_label_unlock(void) {} -#endif +static inline bool jump_label_enabled(struct jump_label_key *key) +{ + return !!atomic_read(&key->enabled); +} -#define COND_STMT(key, stmt) \ -do { \ - __label__ jl_enabled; \ - JUMP_LABEL(key, jl_enabled); \ - if (0) { \ -jl_enabled: \ - stmt; \ - } \ -} while (0) +static inline int jump_label_apply_nops(struct module *mod) +{ + return 0; +} + +#endif #endif diff --git a/include/linux/jump_label_ref.h b/include/linux/jump_label_ref.h deleted file mode 100644 index e5d012ad92c..00000000000 --- a/include/linux/jump_label_ref.h +++ /dev/null @@ -1,44 +0,0 @@ -#ifndef _LINUX_JUMP_LABEL_REF_H -#define _LINUX_JUMP_LABEL_REF_H - -#include <linux/jump_label.h> -#include <asm/atomic.h> - -#ifdef HAVE_JUMP_LABEL - -static inline void jump_label_inc(atomic_t *key) -{ - if (atomic_add_return(1, key) == 1) - jump_label_enable(key); -} - -static inline void jump_label_dec(atomic_t *key) -{ - if (atomic_dec_and_test(key)) - jump_label_disable(key); -} - -#else /* !HAVE_JUMP_LABEL */ - -static inline void jump_label_inc(atomic_t *key) -{ - atomic_inc(key); -} - -static inline void jump_label_dec(atomic_t *key) -{ - atomic_dec(key); -} - -#undef JUMP_LABEL -#define JUMP_LABEL(key, label) \ -do { \ - if (unlikely(__builtin_choose_expr( \ - __builtin_types_compatible_p(typeof(key), atomic_t *), \ - atomic_read((atomic_t *)(key)), *(key)))) \ - goto label; \ -} while (0) - -#endif /* HAVE_JUMP_LABEL */ - -#endif /* _LINUX_JUMP_LABEL_REF_H */ diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 00cec4dc0ae..f37ba716ef8 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -283,6 +283,7 @@ extern char *get_options(const char *str, int nints, int *ints); extern unsigned long long memparse(const char *ptr, char **retptr); extern int core_kernel_text(unsigned long addr); +extern int core_kernel_data(unsigned long addr); extern int __kernel_text_address(unsigned long addr); extern int kernel_text_address(unsigned long addr); extern int func_ptr_is_kernel_text(void *ptr); diff --git a/include/linux/kmod.h b/include/linux/kmod.h index 6efd7a78de6..31023182385 100644 --- a/include/linux/kmod.h +++ b/include/linux/kmod.h @@ -113,5 +113,6 @@ extern void usermodehelper_init(void); extern int usermodehelper_disable(void); extern void usermodehelper_enable(void); +extern bool usermodehelper_is_disabled(void); #endif /* __LINUX_KMOD_H__ */ diff --git a/include/linux/list.h b/include/linux/list.h index 3a54266a1e8..cc6d2aa6b41 100644 --- a/include/linux/list.h +++ b/include/linux/list.h @@ -4,7 +4,7 @@ #include <linux/types.h> #include <linux/stddef.h> #include <linux/poison.h> -#include <linux/prefetch.h> +#include <linux/const.h> /* * Simple doubly linked list implementation. @@ -367,18 +367,15 @@ static inline void list_splice_tail_init(struct list_head *list, * @head: the head for your list. */ #define list_for_each(pos, head) \ - for (pos = (head)->next; prefetch(pos->next), pos != (head); \ - pos = pos->next) + for (pos = (head)->next; pos != (head); pos = pos->next) /** * __list_for_each - iterate over a list * @pos: the &struct list_head to use as a loop cursor. * @head: the head for your list. * - * This variant differs from list_for_each() in that it's the - * simplest possible list iteration code, no prefetching is done. - * Use this for code that knows the list to be very short (empty - * or 1 entry) most of the time. + * This variant doesn't differ from list_for_each() any more. + * We don't do prefetching in either case. */ #define __list_for_each(pos, head) \ for (pos = (head)->next; pos != (head); pos = pos->next) @@ -389,8 +386,7 @@ static inline void list_splice_tail_init(struct list_head *list, * @head: the head for your list. */ #define list_for_each_prev(pos, head) \ - for (pos = (head)->prev; prefetch(pos->prev), pos != (head); \ - pos = pos->prev) + for (pos = (head)->prev; pos != (head); pos = pos->prev) /** * list_for_each_safe - iterate over a list safe against removal of list entry @@ -410,7 +406,7 @@ static inline void list_splice_tail_init(struct list_head *list, */ #define list_for_each_prev_safe(pos, n, head) \ for (pos = (head)->prev, n = pos->prev; \ - prefetch(pos->prev), pos != (head); \ + pos != (head); \ pos = n, n = pos->prev) /** @@ -421,7 +417,7 @@ static inline void list_splice_tail_init(struct list_head *list, */ #define list_for_each_entry(pos, head, member) \ for (pos = list_entry((head)->next, typeof(*pos), member); \ - prefetch(pos->member.next), &pos->member != (head); \ + &pos->member != (head); \ pos = list_entry(pos->member.next, typeof(*pos), member)) /** @@ -432,7 +428,7 @@ static inline void list_splice_tail_init(struct list_head *list, */ #define list_for_each_entry_reverse(pos, head, member) \ for (pos = list_entry((head)->prev, typeof(*pos), member); \ - prefetch(pos->member.prev), &pos->member != (head); \ + &pos->member != (head); \ pos = list_entry(pos->member.prev, typeof(*pos), member)) /** @@ -457,7 +453,7 @@ static inline void list_splice_tail_init(struct list_head *list, */ #define list_for_each_entry_continue(pos, head, member) \ for (pos = list_entry(pos->member.next, typeof(*pos), member); \ - prefetch(pos->member.next), &pos->member != (head); \ + &pos->member != (head); \ pos = list_entry(pos->member.next, typeof(*pos), member)) /** @@ -471,7 +467,7 @@ static inline void list_splice_tail_init(struct list_head *list, */ #define list_for_each_entry_continue_reverse(pos, head, member) \ for (pos = list_entry(pos->member.prev, typeof(*pos), member); \ - prefetch(pos->member.prev), &pos->member != (head); \ + &pos->member != (head); \ pos = list_entry(pos->member.prev, typeof(*pos), member)) /** @@ -483,7 +479,7 @@ static inline void list_splice_tail_init(struct list_head *list, * Iterate over list of given type, continuing from current position. */ #define list_for_each_entry_from(pos, head, member) \ - for (; prefetch(pos->member.next), &pos->member != (head); \ + for (; &pos->member != (head); \ pos = list_entry(pos->member.next, typeof(*pos), member)) /** @@ -664,8 +660,7 @@ static inline void hlist_move_list(struct hlist_head *old, #define hlist_entry(ptr, type, member) container_of(ptr,type,member) #define hlist_for_each(pos, head) \ - for (pos = (head)->first; pos && ({ prefetch(pos->next); 1; }); \ - pos = pos->next) + for (pos = (head)->first; pos ; pos = pos->next) #define hlist_for_each_safe(pos, n, head) \ for (pos = (head)->first; pos && ({ n = pos->next; 1; }); \ @@ -680,7 +675,7 @@ static inline void hlist_move_list(struct hlist_head *old, */ #define hlist_for_each_entry(tpos, pos, head, member) \ for (pos = (head)->first; \ - pos && ({ prefetch(pos->next); 1;}) && \ + pos && \ ({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \ pos = pos->next) @@ -692,7 +687,7 @@ static inline void hlist_move_list(struct hlist_head *old, */ #define hlist_for_each_entry_continue(tpos, pos, member) \ for (pos = (pos)->next; \ - pos && ({ prefetch(pos->next); 1;}) && \ + pos && \ ({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \ pos = pos->next) @@ -703,7 +698,7 @@ static inline void hlist_move_list(struct hlist_head *old, * @member: the name of the hlist_node within the struct. */ #define hlist_for_each_entry_from(tpos, pos, member) \ - for (; pos && ({ prefetch(pos->next); 1;}) && \ + for (; pos && \ ({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \ pos = pos->next) diff --git a/include/linux/mm.h b/include/linux/mm.h index 2348db26bc3..6507dde38b1 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1011,11 +1011,33 @@ int set_page_dirty_lock(struct page *page); int clear_page_dirty_for_io(struct page *page); /* Is the vma a continuation of the stack vma above it? */ -static inline int vma_stack_continue(struct vm_area_struct *vma, unsigned long addr) +static inline int vma_growsdown(struct vm_area_struct *vma, unsigned long addr) { return vma && (vma->vm_end == addr) && (vma->vm_flags & VM_GROWSDOWN); } +static inline int stack_guard_page_start(struct vm_area_struct *vma, + unsigned long addr) +{ + return (vma->vm_flags & VM_GROWSDOWN) && + (vma->vm_start == addr) && + !vma_growsdown(vma->vm_prev, addr); +} + +/* Is the vma a continuation of the stack vma below it? */ +static inline int vma_growsup(struct vm_area_struct *vma, unsigned long addr) +{ + return vma && (vma->vm_start == addr) && (vma->vm_flags & VM_GROWSUP); +} + +static inline int stack_guard_page_end(struct vm_area_struct *vma, + unsigned long addr) +{ + return (vma->vm_flags & VM_GROWSUP) && + (vma->vm_end == addr) && + !vma_growsup(vma->vm_next, addr); +} + extern unsigned long move_page_tables(struct vm_area_struct *vma, unsigned long old_addr, struct vm_area_struct *new_vma, unsigned long new_addr, unsigned long len); diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h index eb792cb6d74..bcb793ec737 100644 --- a/include/linux/mmc/host.h +++ b/include/linux/mmc/host.h @@ -183,6 +183,7 @@ struct mmc_host { struct work_struct clk_gate_work; /* delayed clock gate */ unsigned int clk_old; /* old clock value cache */ spinlock_t clk_lock; /* lock for clk fields */ + struct mutex clk_gate_mutex; /* mutex for clock gating */ #endif /* host specific block data */ diff --git a/include/linux/module.h b/include/linux/module.h index 5de42043dff..d9ca2d5dc6d 100644 --- a/include/linux/module.h +++ b/include/linux/module.h @@ -64,6 +64,9 @@ struct module_version_attribute { const char *version; } __attribute__ ((__aligned__(sizeof(void *)))); +extern ssize_t __modver_version_show(struct module_attribute *, + struct module *, char *); + struct module_kobject { struct kobject kobj; @@ -172,12 +175,7 @@ extern struct module __this_module; #define MODULE_VERSION(_version) MODULE_INFO(version, _version) #else #define MODULE_VERSION(_version) \ - extern ssize_t __modver_version_show(struct module_attribute *, \ - struct module *, char *); \ - static struct module_version_attribute __modver_version_attr \ - __used \ - __attribute__ ((__section__ ("__modver"),aligned(sizeof(void *)))) \ - = { \ + static struct module_version_attribute ___modver_attr = { \ .mattr = { \ .attr = { \ .name = "version", \ @@ -187,7 +185,10 @@ extern struct module __this_module; }, \ .module_name = KBUILD_MODNAME, \ .version = _version, \ - } + }; \ + static const struct module_version_attribute \ + __used __attribute__ ((__section__ ("__modver"))) \ + * __moduleparam_const __modver_attr = &___modver_attr #endif /* Optional firmware file (or files) needed by the module @@ -223,7 +224,7 @@ struct module_use { extern void *__crc_##sym __attribute__((weak)); \ static const unsigned long __kcrctab_##sym \ __used \ - __attribute__((section("__kcrctab" sec), unused)) \ + __attribute__((section("___kcrctab" sec "+" #sym), unused)) \ = (unsigned long) &__crc_##sym; #else #define __CRC_SYMBOL(sym, sec) @@ -238,7 +239,7 @@ struct module_use { = MODULE_SYMBOL_PREFIX #sym; \ static const struct kernel_symbol __ksymtab_##sym \ __used \ - __attribute__((section("__ksymtab" sec), unused)) \ + __attribute__((section("___ksymtab" sec "+" #sym), unused)) \ = { (unsigned long)&sym, __kstrtab_##sym } #define EXPORT_SYMBOL(sym) \ @@ -367,34 +368,35 @@ struct module struct module_notes_attrs *notes_attrs; #endif + /* The command line arguments (may be mangled). People like + keeping pointers to this stuff */ + char *args; + #ifdef CONFIG_SMP /* Per-cpu data. */ void __percpu *percpu; unsigned int percpu_size; #endif - /* The command line arguments (may be mangled). People like - keeping pointers to this stuff */ - char *args; #ifdef CONFIG_TRACEPOINTS - struct tracepoint * const *tracepoints_ptrs; unsigned int num_tracepoints; + struct tracepoint * const *tracepoints_ptrs; #endif #ifdef HAVE_JUMP_LABEL struct jump_entry *jump_entries; unsigned int num_jump_entries; #endif #ifdef CONFIG_TRACING - const char **trace_bprintk_fmt_start; unsigned int num_trace_bprintk_fmt; + const char **trace_bprintk_fmt_start; #endif #ifdef CONFIG_EVENT_TRACING struct ftrace_event_call **trace_events; unsigned int num_trace_events; #endif #ifdef CONFIG_FTRACE_MCOUNT_RECORD - unsigned long *ftrace_callsites; unsigned int num_ftrace_callsites; + unsigned long *ftrace_callsites; #endif #ifdef CONFIG_MODULE_UNLOAD @@ -475,8 +477,9 @@ const struct kernel_symbol *find_symbol(const char *name, bool warn); /* Walk the exported symbol table */ -bool each_symbol(bool (*fn)(const struct symsearch *arr, struct module *owner, - unsigned int symnum, void *data), void *data); +bool each_symbol_section(bool (*fn)(const struct symsearch *arr, + struct module *owner, + void *data), void *data); /* Returns 0 and fills in value, defined and namebuf, or -ERANGE if symnum out of range. */ diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h index 07b41951e3f..ddaae98c53f 100644 --- a/include/linux/moduleparam.h +++ b/include/linux/moduleparam.h @@ -67,9 +67,9 @@ struct kparam_string { struct kparam_array { unsigned int max; + unsigned int elemsize; unsigned int *num; const struct kernel_param_ops *ops; - unsigned int elemsize; void *elem; }; @@ -371,8 +371,9 @@ extern int param_get_invbool(char *buffer, const struct kernel_param *kp); */ #define module_param_array_named(name, array, type, nump, perm) \ static const struct kparam_array __param_arr_##name \ - = { ARRAY_SIZE(array), nump, ¶m_ops_##type, \ - sizeof(array[0]), array }; \ + = { .max = ARRAY_SIZE(array), .num = nump, \ + .ops = ¶m_ops_##type, \ + .elemsize = sizeof(array[0]), .elem = array }; \ __module_param_call(MODULE_PARAM_PREFIX, name, \ ¶m_array_ops, \ .arr = &__param_arr_##name, \ diff --git a/include/linux/mutex.h b/include/linux/mutex.h index 94b48bd40dd..c75471db576 100644 --- a/include/linux/mutex.h +++ b/include/linux/mutex.h @@ -51,7 +51,7 @@ struct mutex { spinlock_t wait_lock; struct list_head wait_list; #if defined(CONFIG_DEBUG_MUTEXES) || defined(CONFIG_SMP) - struct thread_info *owner; + struct task_struct *owner; #endif #ifdef CONFIG_DEBUG_MUTEXES const char *name; diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index 890dce24263..7e371f7df9c 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -233,6 +233,7 @@ struct nfs4_layoutget { struct nfs4_layoutget_args args; struct nfs4_layoutget_res res; struct pnfs_layout_segment **lsegpp; + gfp_t gfp_flags; }; struct nfs4_getdeviceinfo_args { diff --git a/include/linux/of_device.h b/include/linux/of_device.h index 8bfe6c1d436..ae5638480ef 100644 --- a/include/linux/of_device.h +++ b/include/linux/of_device.h @@ -21,8 +21,7 @@ extern void of_device_make_bus_id(struct device *dev); static inline int of_driver_match_device(struct device *dev, const struct device_driver *drv) { - dev->of_match = of_match_device(drv->of_match_table, dev); - return dev->of_match != NULL; + return of_match_device(drv->of_match_table, dev) != NULL; } extern struct platform_device *of_dev_get(struct platform_device *dev); @@ -58,6 +57,11 @@ static inline int of_device_uevent(struct device *dev, static inline void of_device_node_put(struct device *dev) { } +static inline const struct of_device_id *of_match_device( + const struct of_device_id *matches, const struct device *dev) +{ + return NULL; +} #endif /* CONFIG_OF_DEVICE */ #endif /* _LINUX_OF_DEVICE_H */ diff --git a/include/linux/pci-ats.h b/include/linux/pci-ats.h new file mode 100644 index 00000000000..655824fa4c7 --- /dev/null +++ b/include/linux/pci-ats.h @@ -0,0 +1,52 @@ +#ifndef LINUX_PCI_ATS_H +#define LINUX_PCI_ATS_H + +/* Address Translation Service */ +struct pci_ats { + int pos; /* capability position */ + int stu; /* Smallest Translation Unit */ + int qdep; /* Invalidate Queue Depth */ + int ref_cnt; /* Physical Function reference count */ + unsigned int is_enabled:1; /* Enable bit is set */ +}; + +#ifdef CONFIG_PCI_IOV + +extern int pci_enable_ats(struct pci_dev *dev, int ps); +extern void pci_disable_ats(struct pci_dev *dev); +extern int pci_ats_queue_depth(struct pci_dev *dev); +/** + * pci_ats_enabled - query the ATS status + * @dev: the PCI device + * + * Returns 1 if ATS capability is enabled, or 0 if not. + */ +static inline int pci_ats_enabled(struct pci_dev *dev) +{ + return dev->ats && dev->ats->is_enabled; +} + +#else /* CONFIG_PCI_IOV */ + +static inline int pci_enable_ats(struct pci_dev *dev, int ps) +{ + return -ENODEV; +} + +static inline void pci_disable_ats(struct pci_dev *dev) +{ +} + +static inline int pci_ats_queue_depth(struct pci_dev *dev) +{ + return -ENODEV; +} + +static inline int pci_ats_enabled(struct pci_dev *dev) +{ + return 0; +} + +#endif /* CONFIG_PCI_IOV */ + +#endif /* LINUX_PCI_ATS_H*/ diff --git a/include/linux/percpu.h b/include/linux/percpu.h index 3a5c4449fd3..8b97308e65d 100644 --- a/include/linux/percpu.h +++ b/include/linux/percpu.h @@ -948,7 +948,7 @@ do { \ irqsafe_generic_cpu_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2) # endif # define irqsafe_cpu_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2) \ - __pcpu_double_call_return_int(irqsafe_cpu_cmpxchg_double_, (pcp1), (pcp2), (oval1), (oval2), (nval1), (nval2)) + __pcpu_double_call_return_bool(irqsafe_cpu_cmpxchg_double_, (pcp1), (pcp2), (oval1), (oval2), (nval1), (nval2)) #endif #endif /* __LINUX_PERCPU_H */ diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index ee9f1e78280..3412684ce5d 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -2,8 +2,8 @@ * Performance events: * * Copyright (C) 2008-2009, Thomas Gleixner <tglx@linutronix.de> - * Copyright (C) 2008-2009, Red Hat, Inc., Ingo Molnar - * Copyright (C) 2008-2009, Red Hat, Inc., Peter Zijlstra + * Copyright (C) 2008-2011, Red Hat, Inc., Ingo Molnar + * Copyright (C) 2008-2011, Red Hat, Inc., Peter Zijlstra * * Data type definitions, declarations, prototypes. * @@ -52,6 +52,8 @@ enum perf_hw_id { PERF_COUNT_HW_BRANCH_INSTRUCTIONS = 4, PERF_COUNT_HW_BRANCH_MISSES = 5, PERF_COUNT_HW_BUS_CYCLES = 6, + PERF_COUNT_HW_STALLED_CYCLES_FRONTEND = 7, + PERF_COUNT_HW_STALLED_CYCLES_BACKEND = 8, PERF_COUNT_HW_MAX, /* non-ABI */ }; @@ -468,9 +470,9 @@ enum perf_callchain_context { PERF_CONTEXT_MAX = (__u64)-4095, }; -#define PERF_FLAG_FD_NO_GROUP (1U << 0) -#define PERF_FLAG_FD_OUTPUT (1U << 1) -#define PERF_FLAG_PID_CGROUP (1U << 2) /* pid=cgroup id, per-cpu mode only */ +#define PERF_FLAG_FD_NO_GROUP (1U << 0) +#define PERF_FLAG_FD_OUTPUT (1U << 1) +#define PERF_FLAG_PID_CGROUP (1U << 2) /* pid=cgroup id, per-cpu mode only */ #ifdef __KERNEL__ /* @@ -484,9 +486,9 @@ enum perf_callchain_context { #endif struct perf_guest_info_callbacks { - int (*is_in_guest) (void); - int (*is_user_mode) (void); - unsigned long (*get_guest_ip) (void); + int (*is_in_guest)(void); + int (*is_user_mode)(void); + unsigned long (*get_guest_ip)(void); }; #ifdef CONFIG_HAVE_HW_BREAKPOINT @@ -505,7 +507,7 @@ struct perf_guest_info_callbacks { #include <linux/ftrace.h> #include <linux/cpu.h> #include <linux/irq_work.h> -#include <linux/jump_label_ref.h> +#include <linux/jump_label.h> #include <asm/atomic.h> #include <asm/local.h> @@ -652,19 +654,19 @@ struct pmu { * Start the transaction, after this ->add() doesn't need to * do schedulability tests. */ - void (*start_txn) (struct pmu *pmu); /* optional */ + void (*start_txn) (struct pmu *pmu); /* optional */ /* * If ->start_txn() disabled the ->add() schedulability test * then ->commit_txn() is required to perform one. On success * the transaction is closed. On error the transaction is kept * open until ->cancel_txn() is called. */ - int (*commit_txn) (struct pmu *pmu); /* optional */ + int (*commit_txn) (struct pmu *pmu); /* optional */ /* * Will cancel the transaction, assumes ->del() is called * for each successful ->add() during the transaction. */ - void (*cancel_txn) (struct pmu *pmu); /* optional */ + void (*cancel_txn) (struct pmu *pmu); /* optional */ }; /** @@ -712,15 +714,15 @@ typedef void (*perf_overflow_handler_t)(struct perf_event *, int, struct pt_regs *regs); enum perf_group_flag { - PERF_GROUP_SOFTWARE = 0x1, + PERF_GROUP_SOFTWARE = 0x1, }; -#define SWEVENT_HLIST_BITS 8 -#define SWEVENT_HLIST_SIZE (1 << SWEVENT_HLIST_BITS) +#define SWEVENT_HLIST_BITS 8 +#define SWEVENT_HLIST_SIZE (1 << SWEVENT_HLIST_BITS) struct swevent_hlist { - struct hlist_head heads[SWEVENT_HLIST_SIZE]; - struct rcu_head rcu_head; + struct hlist_head heads[SWEVENT_HLIST_SIZE]; + struct rcu_head rcu_head; }; #define PERF_ATTACH_CONTEXT 0x01 @@ -733,13 +735,13 @@ struct swevent_hlist { * This is a per-cpu dynamically allocated data structure. */ struct perf_cgroup_info { - u64 time; - u64 timestamp; + u64 time; + u64 timestamp; }; struct perf_cgroup { - struct cgroup_subsys_state css; - struct perf_cgroup_info *info; /* timing info, one per cpu */ + struct cgroup_subsys_state css; + struct perf_cgroup_info *info; /* timing info, one per cpu */ }; #endif @@ -923,7 +925,7 @@ struct perf_event_context { /* * Number of contexts where an event can trigger: - * task, softirq, hardirq, nmi. + * task, softirq, hardirq, nmi. */ #define PERF_NR_CONTEXTS 4 @@ -1001,8 +1003,7 @@ struct perf_sample_data { struct perf_raw_record *raw; }; -static inline -void perf_sample_data_init(struct perf_sample_data *data, u64 addr) +static inline void perf_sample_data_init(struct perf_sample_data *data, u64 addr) { data->addr = addr; data->raw = NULL; @@ -1034,13 +1035,12 @@ static inline int is_software_event(struct perf_event *event) return event->pmu->task_ctx_nr == perf_sw_context; } -extern atomic_t perf_swevent_enabled[PERF_COUNT_SW_MAX]; +extern struct jump_label_key perf_swevent_enabled[PERF_COUNT_SW_MAX]; extern void __perf_sw_event(u32, u64, int, struct pt_regs *, u64); #ifndef perf_arch_fetch_caller_regs -static inline void -perf_arch_fetch_caller_regs(struct pt_regs *regs, unsigned long ip) { } +static inline void perf_arch_fetch_caller_regs(struct pt_regs *regs, unsigned long ip) { } #endif /* @@ -1063,26 +1063,24 @@ perf_sw_event(u32 event_id, u64 nr, int nmi, struct pt_regs *regs, u64 addr) { struct pt_regs hot_regs; - JUMP_LABEL(&perf_swevent_enabled[event_id], have_event); - return; - -have_event: - if (!regs) { - perf_fetch_caller_regs(&hot_regs); - regs = &hot_regs; + if (static_branch(&perf_swevent_enabled[event_id])) { + if (!regs) { + perf_fetch_caller_regs(&hot_regs); + regs = &hot_regs; + } + __perf_sw_event(event_id, nr, nmi, regs, addr); } - __perf_sw_event(event_id, nr, nmi, regs, addr); } -extern atomic_t perf_sched_events; +extern struct jump_label_key perf_sched_events; static inline void perf_event_task_sched_in(struct task_struct *task) { - COND_STMT(&perf_sched_events, __perf_event_task_sched_in(task)); + if (static_branch(&perf_sched_events)) + __perf_event_task_sched_in(task); } -static inline -void perf_event_task_sched_out(struct task_struct *task, struct task_struct *next) +static inline void perf_event_task_sched_out(struct task_struct *task, struct task_struct *next) { perf_sw_event(PERF_COUNT_SW_CONTEXT_SWITCHES, 1, 1, NULL, 0); @@ -1100,14 +1098,10 @@ extern void perf_event_fork(struct task_struct *tsk); /* Callchains */ DECLARE_PER_CPU(struct perf_callchain_entry, perf_callchain_entry); -extern void perf_callchain_user(struct perf_callchain_entry *entry, - struct pt_regs *regs); -extern void perf_callchain_kernel(struct perf_callchain_entry *entry, - struct pt_regs *regs); - +extern void perf_callchain_user(struct perf_callchain_entry *entry, struct pt_regs *regs); +extern void perf_callchain_kernel(struct perf_callchain_entry *entry, struct pt_regs *regs); -static inline void -perf_callchain_store(struct perf_callchain_entry *entry, u64 ip) +static inline void perf_callchain_store(struct perf_callchain_entry *entry, u64 ip) { if (entry->nr < PERF_MAX_STACK_DEPTH) entry->ip[entry->nr++] = ip; @@ -1143,9 +1137,9 @@ extern void perf_tp_event(u64 addr, u64 count, void *record, extern void perf_bp_event(struct perf_event *event, void *data); #ifndef perf_misc_flags -#define perf_misc_flags(regs) (user_mode(regs) ? PERF_RECORD_MISC_USER : \ - PERF_RECORD_MISC_KERNEL) -#define perf_instruction_pointer(regs) instruction_pointer(regs) +# define perf_misc_flags(regs) \ + (user_mode(regs) ? PERF_RECORD_MISC_USER : PERF_RECORD_MISC_KERNEL) +# define perf_instruction_pointer(regs) instruction_pointer(regs) #endif extern int perf_output_begin(struct perf_output_handle *handle, @@ -1180,9 +1174,9 @@ static inline void perf_bp_event(struct perf_event *event, void *data) { } static inline int perf_register_guest_info_callbacks -(struct perf_guest_info_callbacks *callbacks) { return 0; } +(struct perf_guest_info_callbacks *callbacks) { return 0; } static inline int perf_unregister_guest_info_callbacks -(struct perf_guest_info_callbacks *callbacks) { return 0; } +(struct perf_guest_info_callbacks *callbacks) { return 0; } static inline void perf_event_mmap(struct vm_area_struct *vma) { } static inline void perf_event_comm(struct task_struct *tsk) { } @@ -1195,23 +1189,22 @@ static inline void perf_event_disable(struct perf_event *event) { } static inline void perf_event_task_tick(void) { } #endif -#define perf_output_put(handle, x) \ - perf_output_copy((handle), &(x), sizeof(x)) +#define perf_output_put(handle, x) perf_output_copy((handle), &(x), sizeof(x)) /* * This has to have a higher priority than migration_notifier in sched.c. */ -#define perf_cpu_notifier(fn) \ -do { \ - static struct notifier_block fn##_nb __cpuinitdata = \ - { .notifier_call = fn, .priority = CPU_PRI_PERF }; \ - fn(&fn##_nb, (unsigned long)CPU_UP_PREPARE, \ - (void *)(unsigned long)smp_processor_id()); \ - fn(&fn##_nb, (unsigned long)CPU_STARTING, \ - (void *)(unsigned long)smp_processor_id()); \ - fn(&fn##_nb, (unsigned long)CPU_ONLINE, \ - (void *)(unsigned long)smp_processor_id()); \ - register_cpu_notifier(&fn##_nb); \ +#define perf_cpu_notifier(fn) \ +do { \ + static struct notifier_block fn##_nb __cpuinitdata = \ + { .notifier_call = fn, .priority = CPU_PRI_PERF }; \ + fn(&fn##_nb, (unsigned long)CPU_UP_PREPARE, \ + (void *)(unsigned long)smp_processor_id()); \ + fn(&fn##_nb, (unsigned long)CPU_STARTING, \ + (void *)(unsigned long)smp_processor_id()); \ + fn(&fn##_nb, (unsigned long)CPU_ONLINE, \ + (void *)(unsigned long)smp_processor_id()); \ + register_cpu_notifier(&fn##_nb); \ } while (0) #endif /* __KERNEL__ */ diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h index 744942c95fe..ede1a80e335 100644 --- a/include/linux/platform_device.h +++ b/include/linux/platform_device.h @@ -150,9 +150,6 @@ extern struct platform_device *platform_create_bundle(struct platform_driver *dr struct resource *res, unsigned int n_res, const void *data, size_t size); -extern const struct dev_pm_ops * platform_bus_get_pm_ops(void); -extern void platform_bus_set_pm_ops(const struct dev_pm_ops *pm); - /* early platform driver interface */ struct early_platform_driver { const char *class_str; @@ -205,4 +202,64 @@ static inline char *early_platform_driver_setup_func(void) \ } #endif /* MODULE */ +#ifdef CONFIG_PM_SLEEP +extern int platform_pm_prepare(struct device *dev); +extern void platform_pm_complete(struct device *dev); +#else +#define platform_pm_prepare NULL +#define platform_pm_complete NULL +#endif + +#ifdef CONFIG_SUSPEND +extern int platform_pm_suspend(struct device *dev); +extern int platform_pm_suspend_noirq(struct device *dev); +extern int platform_pm_resume(struct device *dev); +extern int platform_pm_resume_noirq(struct device *dev); +#else +#define platform_pm_suspend NULL +#define platform_pm_resume NULL +#define platform_pm_suspend_noirq NULL +#define platform_pm_resume_noirq NULL +#endif + +#ifdef CONFIG_HIBERNATE_CALLBACKS +extern int platform_pm_freeze(struct device *dev); +extern int platform_pm_freeze_noirq(struct device *dev); +extern int platform_pm_thaw(struct device *dev); +extern int platform_pm_thaw_noirq(struct device *dev); +extern int platform_pm_poweroff(struct device *dev); +extern int platform_pm_poweroff_noirq(struct device *dev); +extern int platform_pm_restore(struct device *dev); +extern int platform_pm_restore_noirq(struct device *dev); +#else +#define platform_pm_freeze NULL +#define platform_pm_thaw NULL +#define platform_pm_poweroff NULL +#define platform_pm_restore NULL +#define platform_pm_freeze_noirq NULL +#define platform_pm_thaw_noirq NULL +#define platform_pm_poweroff_noirq NULL +#define platform_pm_restore_noirq NULL +#endif + +#ifdef CONFIG_PM_SLEEP +#define USE_PLATFORM_PM_SLEEP_OPS \ + .prepare = platform_pm_prepare, \ + .complete = platform_pm_complete, \ + .suspend = platform_pm_suspend, \ + .resume = platform_pm_resume, \ + .freeze = platform_pm_freeze, \ + .thaw = platform_pm_thaw, \ + .poweroff = platform_pm_poweroff, \ + .restore = platform_pm_restore, \ + .suspend_noirq = platform_pm_suspend_noirq, \ + .resume_noirq = platform_pm_resume_noirq, \ + .freeze_noirq = platform_pm_freeze_noirq, \ + .thaw_noirq = platform_pm_thaw_noirq, \ + .poweroff_noirq = platform_pm_poweroff_noirq, \ + .restore_noirq = platform_pm_restore_noirq, +#else +#define USE_PLATFORM_PM_SLEEP_OPS +#endif + #endif /* _PLATFORM_DEVICE_H_ */ diff --git a/include/linux/pm.h b/include/linux/pm.h index 512e09177e5..3160648ccdd 100644 --- a/include/linux/pm.h +++ b/include/linux/pm.h @@ -460,6 +460,7 @@ struct dev_pm_info { unsigned long active_jiffies; unsigned long suspended_jiffies; unsigned long accounting_timestamp; + void *subsys_data; /* Owned by the subsystem. */ #endif }; @@ -529,21 +530,17 @@ struct dev_power_domain { */ #ifdef CONFIG_PM_SLEEP -#ifndef CONFIG_ARCH_NO_SYSDEV_OPS -extern int sysdev_suspend(pm_message_t state); -extern int sysdev_resume(void); -#else -static inline int sysdev_suspend(pm_message_t state) { return 0; } -static inline int sysdev_resume(void) { return 0; } -#endif - extern void device_pm_lock(void); extern void dpm_resume_noirq(pm_message_t state); extern void dpm_resume_end(pm_message_t state); +extern void dpm_resume(pm_message_t state); +extern void dpm_complete(pm_message_t state); extern void device_pm_unlock(void); extern int dpm_suspend_noirq(pm_message_t state); extern int dpm_suspend_start(pm_message_t state); +extern int dpm_suspend(pm_message_t state); +extern int dpm_prepare(pm_message_t state); extern void __suspend_report_result(const char *function, void *fn, int ret); @@ -553,6 +550,16 @@ extern void __suspend_report_result(const char *function, void *fn, int ret); } while (0) extern int device_pm_wait_for_dev(struct device *sub, struct device *dev); + +extern int pm_generic_prepare(struct device *dev); +extern int pm_generic_suspend(struct device *dev); +extern int pm_generic_resume(struct device *dev); +extern int pm_generic_freeze(struct device *dev); +extern int pm_generic_thaw(struct device *dev); +extern int pm_generic_restore(struct device *dev); +extern int pm_generic_poweroff(struct device *dev); +extern void pm_generic_complete(struct device *dev); + #else /* !CONFIG_PM_SLEEP */ #define device_pm_lock() do {} while (0) @@ -569,6 +576,15 @@ static inline int device_pm_wait_for_dev(struct device *a, struct device *b) { return 0; } + +#define pm_generic_prepare NULL +#define pm_generic_suspend NULL +#define pm_generic_resume NULL +#define pm_generic_freeze NULL +#define pm_generic_thaw NULL +#define pm_generic_restore NULL +#define pm_generic_poweroff NULL +#define pm_generic_complete NULL #endif /* !CONFIG_PM_SLEEP */ /* How to reorder dpm_list after device_move() */ @@ -579,11 +595,4 @@ enum dpm_order { DPM_ORDER_DEV_LAST, }; -extern int pm_generic_suspend(struct device *dev); -extern int pm_generic_resume(struct device *dev); -extern int pm_generic_freeze(struct device *dev); -extern int pm_generic_thaw(struct device *dev); -extern int pm_generic_restore(struct device *dev); -extern int pm_generic_poweroff(struct device *dev); - #endif /* _LINUX_PM_H */ diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h index 8de9aa6e7de..878cf84baeb 100644 --- a/include/linux/pm_runtime.h +++ b/include/linux/pm_runtime.h @@ -245,4 +245,46 @@ static inline void pm_runtime_dont_use_autosuspend(struct device *dev) __pm_runtime_use_autosuspend(dev, false); } +struct pm_clk_notifier_block { + struct notifier_block nb; + struct dev_power_domain *pwr_domain; + char *con_ids[]; +}; + +#ifdef CONFIG_PM_RUNTIME_CLK +extern int pm_runtime_clk_init(struct device *dev); +extern void pm_runtime_clk_destroy(struct device *dev); +extern int pm_runtime_clk_add(struct device *dev, const char *con_id); +extern void pm_runtime_clk_remove(struct device *dev, const char *con_id); +extern int pm_runtime_clk_suspend(struct device *dev); +extern int pm_runtime_clk_resume(struct device *dev); +#else +static inline int pm_runtime_clk_init(struct device *dev) +{ + return -EINVAL; +} +static inline void pm_runtime_clk_destroy(struct device *dev) +{ +} +static inline int pm_runtime_clk_add(struct device *dev, const char *con_id) +{ + return -EINVAL; +} +static inline void pm_runtime_clk_remove(struct device *dev, const char *con_id) +{ +} +#define pm_runtime_clock_suspend NULL +#define pm_runtime_clock_resume NULL +#endif + +#ifdef CONFIG_HAVE_CLK +extern void pm_runtime_clk_add_notifier(struct bus_type *bus, + struct pm_clk_notifier_block *clknb); +#else +static inline void pm_runtime_clk_add_notifier(struct bus_type *bus, + struct pm_clk_notifier_block *clknb) +{ +} +#endif + #endif diff --git a/include/linux/posix-timers.h b/include/linux/posix-timers.h index d51243ae072..808227d40a6 100644 --- a/include/linux/posix-timers.h +++ b/include/linux/posix-timers.h @@ -5,6 +5,7 @@ #include <linux/list.h> #include <linux/sched.h> #include <linux/timex.h> +#include <linux/alarmtimer.h> union cpu_time_count { cputime_t cpu; @@ -80,6 +81,7 @@ struct k_itimer { unsigned long incr; unsigned long expires; } mmtimer; + struct alarm alarmtimer; } it; }; diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index 838c1149251..eaf4350c0f9 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -208,6 +208,8 @@ static inline struct proc_dir_entry *proc_symlink(const char *name, struct proc_dir_entry *parent,const char *dest) {return NULL;} static inline struct proc_dir_entry *proc_mkdir(const char *name, struct proc_dir_entry *parent) {return NULL;} +static inline struct proc_dir_entry *proc_mkdir_mode(const char *name, + mode_t mode, struct proc_dir_entry *parent) { return NULL; } static inline struct proc_dir_entry *create_proc_read_entry(const char *name, mode_t mode, struct proc_dir_entry *base, diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h index a1147e5dd24..9178d5cc0b0 100644 --- a/include/linux/ptrace.h +++ b/include/linux/ptrace.h @@ -189,6 +189,10 @@ static inline void ptrace_init_task(struct task_struct *child, bool ptrace) child->ptrace = current->ptrace; __ptrace_link(child, current->parent); } + +#ifdef CONFIG_HAVE_HW_BREAKPOINT + atomic_set(&child->ptrace_bp_refcnt, 1); +#endif } /** @@ -350,6 +354,13 @@ extern int task_current_syscall(struct task_struct *target, long *callno, unsigned long args[6], unsigned int maxargs, unsigned long *sp, unsigned long *pc); -#endif +#ifdef CONFIG_HAVE_HW_BREAKPOINT +extern int ptrace_get_breakpoints(struct task_struct *tsk); +extern void ptrace_put_breakpoints(struct task_struct *tsk); +#else +static inline void ptrace_put_breakpoints(struct task_struct *tsk) { } +#endif /* CONFIG_HAVE_HW_BREAKPOINT */ + +#endif /* __KERNEL */ #endif diff --git a/include/linux/rbtree.h b/include/linux/rbtree.h index 7066acb2c53..033b507b33b 100644 --- a/include/linux/rbtree.h +++ b/include/linux/rbtree.h @@ -136,6 +136,14 @@ static inline void rb_set_color(struct rb_node *rb, int color) #define RB_EMPTY_NODE(node) (rb_parent(node) == node) #define RB_CLEAR_NODE(node) (rb_set_parent(node, node)) +static inline void rb_init_node(struct rb_node *rb) +{ + rb->rb_parent_color = 0; + rb->rb_right = NULL; + rb->rb_left = NULL; + RB_CLEAR_NODE(rb); +} + extern void rb_insert_color(struct rb_node *, struct rb_root *); extern void rb_erase(struct rb_node *, struct rb_root *); diff --git a/include/linux/rculist.h b/include/linux/rculist.h index 2dea94fc440..e3beb315517 100644 --- a/include/linux/rculist.h +++ b/include/linux/rculist.h @@ -253,7 +253,7 @@ static inline void list_splice_init_rcu(struct list_head *list, */ #define list_for_each_entry_rcu(pos, head, member) \ for (pos = list_entry_rcu((head)->next, typeof(*pos), member); \ - prefetch(pos->member.next), &pos->member != (head); \ + &pos->member != (head); \ pos = list_entry_rcu(pos->member.next, typeof(*pos), member)) @@ -270,7 +270,7 @@ static inline void list_splice_init_rcu(struct list_head *list, */ #define list_for_each_continue_rcu(pos, head) \ for ((pos) = rcu_dereference_raw(list_next_rcu(pos)); \ - prefetch((pos)->next), (pos) != (head); \ + (pos) != (head); \ (pos) = rcu_dereference_raw(list_next_rcu(pos))) /** @@ -284,7 +284,7 @@ static inline void list_splice_init_rcu(struct list_head *list, */ #define list_for_each_entry_continue_rcu(pos, head, member) \ for (pos = list_entry_rcu(pos->member.next, typeof(*pos), member); \ - prefetch(pos->member.next), &pos->member != (head); \ + &pos->member != (head); \ pos = list_entry_rcu(pos->member.next, typeof(*pos), member)) /** @@ -427,7 +427,7 @@ static inline void hlist_add_after_rcu(struct hlist_node *prev, #define __hlist_for_each_rcu(pos, head) \ for (pos = rcu_dereference(hlist_first_rcu(head)); \ - pos && ({ prefetch(pos->next); 1; }); \ + pos; \ pos = rcu_dereference(hlist_next_rcu(pos))) /** @@ -443,7 +443,7 @@ static inline void hlist_add_after_rcu(struct hlist_node *prev, */ #define hlist_for_each_entry_rcu(tpos, pos, head, member) \ for (pos = rcu_dereference_raw(hlist_first_rcu(head)); \ - pos && ({ prefetch(pos->next); 1; }) && \ + pos && \ ({ tpos = hlist_entry(pos, typeof(*tpos), member); 1; }); \ pos = rcu_dereference_raw(hlist_next_rcu(pos))) @@ -460,7 +460,7 @@ static inline void hlist_add_after_rcu(struct hlist_node *prev, */ #define hlist_for_each_entry_rcu_bh(tpos, pos, head, member) \ for (pos = rcu_dereference_bh((head)->first); \ - pos && ({ prefetch(pos->next); 1; }) && \ + pos && \ ({ tpos = hlist_entry(pos, typeof(*tpos), member); 1; }); \ pos = rcu_dereference_bh(pos->next)) @@ -472,7 +472,7 @@ static inline void hlist_add_after_rcu(struct hlist_node *prev, */ #define hlist_for_each_entry_continue_rcu(tpos, pos, member) \ for (pos = rcu_dereference((pos)->next); \ - pos && ({ prefetch(pos->next); 1; }) && \ + pos && \ ({ tpos = hlist_entry(pos, typeof(*tpos), member); 1; }); \ pos = rcu_dereference(pos->next)) @@ -484,7 +484,7 @@ static inline void hlist_add_after_rcu(struct hlist_node *prev, */ #define hlist_for_each_entry_continue_rcu_bh(tpos, pos, member) \ for (pos = rcu_dereference_bh((pos)->next); \ - pos && ({ prefetch(pos->next); 1; }) && \ + pos && \ ({ tpos = hlist_entry(pos, typeof(*tpos), member); 1; }); \ pos = rcu_dereference_bh(pos->next)) diff --git a/include/linux/sched.h b/include/linux/sched.h index 18d63cea284..12211e1666e 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -360,7 +360,7 @@ extern signed long schedule_timeout_interruptible(signed long timeout); extern signed long schedule_timeout_killable(signed long timeout); extern signed long schedule_timeout_uninterruptible(signed long timeout); asmlinkage void schedule(void); -extern int mutex_spin_on_owner(struct mutex *lock, struct thread_info *owner); +extern int mutex_spin_on_owner(struct mutex *lock, struct task_struct *owner); struct nsproxy; struct user_namespace; @@ -731,10 +731,6 @@ struct sched_info { /* timestamps */ unsigned long long last_arrival,/* when we last ran on a cpu */ last_queued; /* when we were last queued to run */ -#ifdef CONFIG_SCHEDSTATS - /* BKL stats */ - unsigned int bkl_count; -#endif }; #endif /* defined(CONFIG_SCHEDSTATS) || defined(CONFIG_TASK_DELAY_ACCT) */ @@ -868,6 +864,7 @@ static inline int sd_power_saving_flags(void) struct sched_group { struct sched_group *next; /* Must be a circular list */ + atomic_t ref; /* * CPU power of this group, SCHED_LOAD_SCALE being max power for a @@ -882,9 +879,6 @@ struct sched_group { * NOTE: this field is variable length. (Allocated dynamically * by attaching extra space to the end of the structure, * depending on how many CPUs the kernel has booted up with) - * - * It is also be embedded into static data structures at build - * time. (See 'struct static_sched_group' in kernel/sched.c) */ unsigned long cpumask[0]; }; @@ -894,17 +888,6 @@ static inline struct cpumask *sched_group_cpus(struct sched_group *sg) return to_cpumask(sg->cpumask); } -enum sched_domain_level { - SD_LV_NONE = 0, - SD_LV_SIBLING, - SD_LV_MC, - SD_LV_BOOK, - SD_LV_CPU, - SD_LV_NODE, - SD_LV_ALLNODES, - SD_LV_MAX -}; - struct sched_domain_attr { int relax_domain_level; }; @@ -913,6 +896,8 @@ struct sched_domain_attr { .relax_domain_level = -1, \ } +extern int sched_domain_level_max; + struct sched_domain { /* These fields must be setup */ struct sched_domain *parent; /* top domain must be null terminated */ @@ -930,7 +915,7 @@ struct sched_domain { unsigned int forkexec_idx; unsigned int smt_gain; int flags; /* See SD_* */ - enum sched_domain_level level; + int level; /* Runtime fields. */ unsigned long last_balance; /* init to jiffies. units in jiffies */ @@ -973,6 +958,10 @@ struct sched_domain { #ifdef CONFIG_SCHED_DEBUG char *name; #endif + union { + void *private; /* used during construction */ + struct rcu_head rcu; /* used during destruction */ + }; unsigned int span_weight; /* @@ -981,9 +970,6 @@ struct sched_domain { * NOTE: this field is variable length. (Allocated dynamically * by attaching extra space to the end of the structure, * depending on how many CPUs the kernel has booted up with) - * - * It is also be embedded into static data structures at build - * time. (See 'struct static_sched_domain' in kernel/sched.c) */ unsigned long span[0]; }; @@ -1048,8 +1034,12 @@ struct sched_domain; #define WF_FORK 0x02 /* child wakeup after fork */ #define ENQUEUE_WAKEUP 1 -#define ENQUEUE_WAKING 2 -#define ENQUEUE_HEAD 4 +#define ENQUEUE_HEAD 2 +#ifdef CONFIG_SMP +#define ENQUEUE_WAKING 4 /* sched_class::task_waking was called */ +#else +#define ENQUEUE_WAKING 0 +#endif #define DEQUEUE_SLEEP 1 @@ -1067,12 +1057,11 @@ struct sched_class { void (*put_prev_task) (struct rq *rq, struct task_struct *p); #ifdef CONFIG_SMP - int (*select_task_rq)(struct rq *rq, struct task_struct *p, - int sd_flag, int flags); + int (*select_task_rq)(struct task_struct *p, int sd_flag, int flags); void (*pre_schedule) (struct rq *this_rq, struct task_struct *task); void (*post_schedule) (struct rq *this_rq); - void (*task_waking) (struct rq *this_rq, struct task_struct *task); + void (*task_waking) (struct task_struct *task); void (*task_woken) (struct rq *this_rq, struct task_struct *task); void (*set_cpus_allowed)(struct task_struct *p, @@ -1197,13 +1186,11 @@ struct task_struct { unsigned int flags; /* per process flags, defined below */ unsigned int ptrace; - int lock_depth; /* BKL lock depth */ - #ifdef CONFIG_SMP -#ifdef __ARCH_WANT_UNLOCKED_CTXSW - int oncpu; -#endif + struct task_struct *wake_entry; + int on_cpu; #endif + int on_rq; int prio, static_prio, normal_prio; unsigned int rt_priority; @@ -1274,6 +1261,7 @@ struct task_struct { /* Revert to default priority/policy when forking */ unsigned sched_reset_on_fork:1; + unsigned sched_contributes_to_load:1; pid_t pid; pid_t tgid; @@ -1537,6 +1525,9 @@ struct task_struct { unsigned long memsw_nr_pages; /* uncharged mem+swap usage */ } memcg_batch; #endif +#ifdef CONFIG_HAVE_HW_BREAKPOINT + atomic_t ptrace_bp_refcnt; +#endif }; /* Future-safe accessor for struct task_struct's cpus_allowed. */ @@ -2060,14 +2051,13 @@ extern void xtime_update(unsigned long ticks); extern int wake_up_state(struct task_struct *tsk, unsigned int state); extern int wake_up_process(struct task_struct *tsk); -extern void wake_up_new_task(struct task_struct *tsk, - unsigned long clone_flags); +extern void wake_up_new_task(struct task_struct *tsk); #ifdef CONFIG_SMP extern void kick_process(struct task_struct *tsk); #else static inline void kick_process(struct task_struct *tsk) { } #endif -extern void sched_fork(struct task_struct *p, int clone_flags); +extern void sched_fork(struct task_struct *p); extern void sched_dead(struct task_struct *p); extern void proc_caches_init(void); @@ -2192,8 +2182,10 @@ extern void set_task_comm(struct task_struct *tsk, char *from); extern char *get_task_comm(char *to, struct task_struct *tsk); #ifdef CONFIG_SMP +void scheduler_ipi(void); extern unsigned long wait_task_inactive(struct task_struct *, long match_state); #else +static inline void scheduler_ipi(void) { } static inline unsigned long wait_task_inactive(struct task_struct *p, long match_state) { diff --git a/include/linux/seqlock.h b/include/linux/seqlock.h index e98cd2e5719..06d69648fc8 100644 --- a/include/linux/seqlock.h +++ b/include/linux/seqlock.h @@ -88,12 +88,12 @@ static __always_inline unsigned read_seqbegin(const seqlock_t *sl) unsigned ret; repeat: - ret = sl->sequence; - smp_rmb(); + ret = ACCESS_ONCE(sl->sequence); if (unlikely(ret & 1)) { cpu_relax(); goto repeat; } + smp_rmb(); return ret; } diff --git a/include/linux/ssb/ssb.h b/include/linux/ssb/ssb.h index 9659eff52ca..045f72ab5df 100644 --- a/include/linux/ssb/ssb.h +++ b/include/linux/ssb/ssb.h @@ -404,7 +404,9 @@ extern bool ssb_is_sprom_available(struct ssb_bus *bus); /* Set a fallback SPROM. * See kdoc at the function definition for complete documentation. */ -extern int ssb_arch_set_fallback_sprom(const struct ssb_sprom *sprom); +extern int ssb_arch_register_fallback_sprom( + int (*sprom_callback)(struct ssb_bus *bus, + struct ssb_sprom *out)); /* Suspend a SSB bus. * Call this from the parent bus suspend routine. */ diff --git a/include/linux/string.h b/include/linux/string.h index a716ee2a8ad..a176db2f2c8 100644 --- a/include/linux/string.h +++ b/include/linux/string.h @@ -123,6 +123,7 @@ extern char **argv_split(gfp_t gfp, const char *str, int *argcp); extern void argv_free(char **argv); extern bool sysfs_streq(const char *s1, const char *s2); +extern int strtobool(const char *s, bool *res); #ifdef CONFIG_BINARY_PRINTF int vbin_printf(u32 *bin_buf, size_t size, const char *fmt, va_list args); diff --git a/include/linux/sysdev.h b/include/linux/sysdev.h index dfb078db8eb..d35e783a598 100644 --- a/include/linux/sysdev.h +++ b/include/linux/sysdev.h @@ -34,12 +34,6 @@ struct sysdev_class { struct list_head drivers; struct sysdev_class_attribute **attrs; struct kset kset; -#ifndef CONFIG_ARCH_NO_SYSDEV_OPS - /* Default operations for these types of devices */ - int (*shutdown)(struct sys_device *); - int (*suspend)(struct sys_device *, pm_message_t state); - int (*resume)(struct sys_device *); -#endif }; struct sysdev_class_attribute { @@ -77,11 +71,6 @@ struct sysdev_driver { struct list_head entry; int (*add)(struct sys_device *); int (*remove)(struct sys_device *); -#ifndef CONFIG_ARCH_NO_SYSDEV_OPS - int (*shutdown)(struct sys_device *); - int (*suspend)(struct sys_device *, pm_message_t state); - int (*resume)(struct sys_device *); -#endif }; diff --git a/include/linux/time.h b/include/linux/time.h index 454a2620578..b3061782dec 100644 --- a/include/linux/time.h +++ b/include/linux/time.h @@ -126,6 +126,7 @@ struct timespec __current_kernel_time(void); /* does not take xtime_lock */ struct timespec get_monotonic_coarse(void); void get_xtime_and_monotonic_and_sleep_offset(struct timespec *xtim, struct timespec *wtom, struct timespec *sleep); +void timekeeping_inject_sleeptime(struct timespec *delta); #define CURRENT_TIME (current_kernel_time()) #define CURRENT_TIME_SEC ((struct timespec) { get_seconds(), 0 }) @@ -294,6 +295,8 @@ struct itimerval { #define CLOCK_REALTIME_COARSE 5 #define CLOCK_MONOTONIC_COARSE 6 #define CLOCK_BOOTTIME 7 +#define CLOCK_REALTIME_ALARM 8 +#define CLOCK_BOOTTIME_ALARM 9 /* * The IDs of various hardware clocks: diff --git a/include/linux/timerqueue.h b/include/linux/timerqueue.h index a520fd70a59..5088727478f 100644 --- a/include/linux/timerqueue.h +++ b/include/linux/timerqueue.h @@ -39,7 +39,7 @@ struct timerqueue_node *timerqueue_getnext(struct timerqueue_head *head) static inline void timerqueue_init(struct timerqueue_node *node) { - RB_CLEAR_NODE(&node->node); + rb_init_node(&node->node); } static inline void timerqueue_init_head(struct timerqueue_head *head) diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h index 97c84a58efb..d530a4460a0 100644 --- a/include/linux/tracepoint.h +++ b/include/linux/tracepoint.h @@ -29,7 +29,7 @@ struct tracepoint_func { struct tracepoint { const char *name; /* Tracepoint name */ - int state; /* State. */ + struct jump_label_key key; void (*regfunc)(void); void (*unregfunc)(void); struct tracepoint_func __rcu *funcs; @@ -146,9 +146,7 @@ void tracepoint_update_probe_range(struct tracepoint * const *begin, extern struct tracepoint __tracepoint_##name; \ static inline void trace_##name(proto) \ { \ - JUMP_LABEL(&__tracepoint_##name.state, do_trace); \ - return; \ -do_trace: \ + if (static_branch(&__tracepoint_##name.key)) \ __DO_TRACE(&__tracepoint_##name, \ TP_PROTO(data_proto), \ TP_ARGS(data_args), \ @@ -176,14 +174,14 @@ do_trace: \ * structures, so we create an array of pointers that will be used for iteration * on the tracepoints. */ -#define DEFINE_TRACE_FN(name, reg, unreg) \ - static const char __tpstrtab_##name[] \ - __attribute__((section("__tracepoints_strings"))) = #name; \ - struct tracepoint __tracepoint_##name \ - __attribute__((section("__tracepoints"))) = \ - { __tpstrtab_##name, 0, reg, unreg, NULL }; \ - static struct tracepoint * const __tracepoint_ptr_##name __used \ - __attribute__((section("__tracepoints_ptrs"))) = \ +#define DEFINE_TRACE_FN(name, reg, unreg) \ + static const char __tpstrtab_##name[] \ + __attribute__((section("__tracepoints_strings"))) = #name; \ + struct tracepoint __tracepoint_##name \ + __attribute__((section("__tracepoints"))) = \ + { __tpstrtab_##name, JUMP_LABEL_INIT, reg, unreg, NULL };\ + static struct tracepoint * const __tracepoint_ptr_##name __used \ + __attribute__((section("__tracepoints_ptrs"))) = \ &__tracepoint_##name; #define DEFINE_TRACE(name) \ diff --git a/include/net/inet_ecn.h b/include/net/inet_ecn.h index 88bdd010d65..2fa8d1341a0 100644 --- a/include/net/inet_ecn.h +++ b/include/net/inet_ecn.h @@ -38,9 +38,19 @@ static inline __u8 INET_ECN_encapsulate(__u8 outer, __u8 inner) return outer; } -#define INET_ECN_xmit(sk) do { inet_sk(sk)->tos |= INET_ECN_ECT_0; } while (0) -#define INET_ECN_dontxmit(sk) \ - do { inet_sk(sk)->tos &= ~INET_ECN_MASK; } while (0) +static inline void INET_ECN_xmit(struct sock *sk) +{ + inet_sk(sk)->tos |= INET_ECN_ECT_0; + if (inet6_sk(sk) != NULL) + inet6_sk(sk)->tclass |= INET_ECN_ECT_0; +} + +static inline void INET_ECN_dontxmit(struct sock *sk) +{ + inet_sk(sk)->tos &= ~INET_ECN_MASK; + if (inet6_sk(sk) != NULL) + inet6_sk(sk)->tclass &= ~INET_ECN_MASK; +} #define IP6_ECN_flow_init(label) do { \ (label) &= ~htonl(INET_ECN_MASK << 20); \ diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h index d516f00c8e0..86aefed6140 100644 --- a/include/net/ip_vs.h +++ b/include/net/ip_vs.h @@ -791,6 +791,7 @@ struct ip_vs_app { /* IPVS in network namespace */ struct netns_ipvs { int gen; /* Generation */ + int enable; /* enable like nf_hooks do */ /* * Hash table: for real service lookups */ @@ -1089,6 +1090,22 @@ ip_vs_control_add(struct ip_vs_conn *cp, struct ip_vs_conn *ctl_cp) atomic_inc(&ctl_cp->n_control); } +/* + * IPVS netns init & cleanup functions + */ +extern int __ip_vs_estimator_init(struct net *net); +extern int __ip_vs_control_init(struct net *net); +extern int __ip_vs_protocol_init(struct net *net); +extern int __ip_vs_app_init(struct net *net); +extern int __ip_vs_conn_init(struct net *net); +extern int __ip_vs_sync_init(struct net *net); +extern void __ip_vs_conn_cleanup(struct net *net); +extern void __ip_vs_app_cleanup(struct net *net); +extern void __ip_vs_protocol_cleanup(struct net *net); +extern void __ip_vs_control_cleanup(struct net *net); +extern void __ip_vs_estimator_cleanup(struct net *net); +extern void __ip_vs_sync_cleanup(struct net *net); +extern void __ip_vs_service_cleanup(struct net *net); /* * IPVS application functions diff --git a/include/net/llc_pdu.h b/include/net/llc_pdu.h index 75b8e2968c9..f57e7d46a45 100644 --- a/include/net/llc_pdu.h +++ b/include/net/llc_pdu.h @@ -199,7 +199,7 @@ struct llc_pdu_sn { u8 ssap; u8 ctrl_1; u8 ctrl_2; -}; +} __packed; static inline struct llc_pdu_sn *llc_pdu_sn_hdr(struct sk_buff *skb) { @@ -211,7 +211,7 @@ struct llc_pdu_un { u8 dsap; u8 ssap; u8 ctrl_1; -}; +} __packed; static inline struct llc_pdu_un *llc_pdu_un_hdr(struct sk_buff *skb) { @@ -359,7 +359,7 @@ struct llc_xid_info { u8 fmt_id; /* always 0x81 for LLC */ u8 type; /* different if NULL/non-NULL LSAP */ u8 rw; /* sender receive window */ -}; +} __packed; /** * llc_pdu_init_as_xid_cmd - sets bytes 3, 4 & 5 of LLC header as XID @@ -415,7 +415,7 @@ struct llc_frmr_info { u8 curr_ssv; /* current send state variable val */ u8 curr_rsv; /* current receive state variable */ u8 ind_bits; /* indicator bits set with macro */ -}; +} __packed; extern void llc_pdu_set_cmd_rsp(struct sk_buff *skb, u8 type); extern void llc_pdu_set_pf_bit(struct sk_buff *skb, u8 bit_value); diff --git a/include/net/xfrm.h b/include/net/xfrm.h index 6ae4bc5ce8a..20afeaa3939 100644 --- a/include/net/xfrm.h +++ b/include/net/xfrm.h @@ -324,6 +324,7 @@ struct xfrm_state_afinfo { int (*tmpl_sort)(struct xfrm_tmpl **dst, struct xfrm_tmpl **src, int n); int (*state_sort)(struct xfrm_state **dst, struct xfrm_state **src, int n); int (*output)(struct sk_buff *skb); + int (*output_finish)(struct sk_buff *skb); int (*extract_input)(struct xfrm_state *x, struct sk_buff *skb); int (*extract_output)(struct xfrm_state *x, @@ -1454,6 +1455,7 @@ static inline int xfrm4_rcv_spi(struct sk_buff *skb, int nexthdr, __be32 spi) extern int xfrm4_extract_output(struct xfrm_state *x, struct sk_buff *skb); extern int xfrm4_prepare_output(struct xfrm_state *x, struct sk_buff *skb); extern int xfrm4_output(struct sk_buff *skb); +extern int xfrm4_output_finish(struct sk_buff *skb); extern int xfrm4_tunnel_register(struct xfrm_tunnel *handler, unsigned short family); extern int xfrm4_tunnel_deregister(struct xfrm_tunnel *handler, unsigned short family); extern int xfrm6_extract_header(struct sk_buff *skb); @@ -1470,6 +1472,7 @@ extern __be32 xfrm6_tunnel_spi_lookup(struct net *net, xfrm_address_t *saddr); extern int xfrm6_extract_output(struct xfrm_state *x, struct sk_buff *skb); extern int xfrm6_prepare_output(struct xfrm_state *x, struct sk_buff *skb); extern int xfrm6_output(struct sk_buff *skb); +extern int xfrm6_output_finish(struct sk_buff *skb); extern int xfrm6_find_1stfragopt(struct xfrm_state *x, struct sk_buff *skb, u8 **prevhdr); diff --git a/include/rdma/iw_cm.h b/include/rdma/iw_cm.h index cbb822e8d79..2d0191c90f9 100644 --- a/include/rdma/iw_cm.h +++ b/include/rdma/iw_cm.h @@ -46,18 +46,9 @@ enum iw_cm_event_type { IW_CM_EVENT_CLOSE /* close complete */ }; -enum iw_cm_event_status { - IW_CM_EVENT_STATUS_OK = 0, /* request successful */ - IW_CM_EVENT_STATUS_ACCEPTED = 0, /* connect request accepted */ - IW_CM_EVENT_STATUS_REJECTED, /* connect request rejected */ - IW_CM_EVENT_STATUS_TIMEOUT, /* the operation timed out */ - IW_CM_EVENT_STATUS_RESET, /* reset from remote peer */ - IW_CM_EVENT_STATUS_EINVAL, /* asynchronous failure for bad parm */ -}; - struct iw_cm_event { enum iw_cm_event_type event; - enum iw_cm_event_status status; + int status; struct sockaddr_in local_addr; struct sockaddr_in remote_addr; void *private_data; diff --git a/include/rdma/rdma_cm.h b/include/rdma/rdma_cm.h index 4fae9030464..169f7a53fb0 100644 --- a/include/rdma/rdma_cm.h +++ b/include/rdma/rdma_cm.h @@ -329,4 +329,14 @@ void rdma_leave_multicast(struct rdma_cm_id *id, struct sockaddr *addr); */ void rdma_set_service_type(struct rdma_cm_id *id, int tos); +/** + * rdma_set_reuseaddr - Allow the reuse of local addresses when binding + * the rdma_cm_id. + * @id: Communication identifier to configure. + * @reuse: Value indicating if the bound address is reusable. + * + * Reuse must be set before an address is bound to the id. + */ +int rdma_set_reuseaddr(struct rdma_cm_id *id, int reuse); + #endif /* RDMA_CM_H */ diff --git a/include/rdma/rdma_user_cm.h b/include/rdma/rdma_user_cm.h index 1d165022c02..fc82c1896f7 100644 --- a/include/rdma/rdma_user_cm.h +++ b/include/rdma/rdma_user_cm.h @@ -221,8 +221,9 @@ enum { /* Option details */ enum { - RDMA_OPTION_ID_TOS = 0, - RDMA_OPTION_IB_PATH = 1 + RDMA_OPTION_ID_TOS = 0, + RDMA_OPTION_ID_REUSEADDR = 1, + RDMA_OPTION_IB_PATH = 1 }; struct rdma_ucm_set_option { diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index 2d3ec509468..dd82e02ddde 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -169,6 +169,7 @@ struct scsi_device { sdev_dev; struct execute_work ew; /* used to get process context on put */ + struct work_struct requeue_work; struct scsi_dh_data *scsi_dh_data; enum scsi_device_state sdev_state; diff --git a/include/trace/events/gfpflags.h b/include/trace/events/gfpflags.h index e3615c09374..9fe3a36646e 100644 --- a/include/trace/events/gfpflags.h +++ b/include/trace/events/gfpflags.h @@ -10,6 +10,7 @@ */ #define show_gfp_flags(flags) \ (flags) ? __print_flags(flags, "|", \ + {(unsigned long)GFP_TRANSHUGE, "GFP_TRANSHUGE"}, \ {(unsigned long)GFP_HIGHUSER_MOVABLE, "GFP_HIGHUSER_MOVABLE"}, \ {(unsigned long)GFP_HIGHUSER, "GFP_HIGHUSER"}, \ {(unsigned long)GFP_USER, "GFP_USER"}, \ @@ -32,6 +33,9 @@ {(unsigned long)__GFP_HARDWALL, "GFP_HARDWALL"}, \ {(unsigned long)__GFP_THISNODE, "GFP_THISNODE"}, \ {(unsigned long)__GFP_RECLAIMABLE, "GFP_RECLAIMABLE"}, \ - {(unsigned long)__GFP_MOVABLE, "GFP_MOVABLE"} \ + {(unsigned long)__GFP_MOVABLE, "GFP_MOVABLE"}, \ + {(unsigned long)__GFP_NOTRACK, "GFP_NOTRACK"}, \ + {(unsigned long)__GFP_NO_KSWAPD, "GFP_NO_KSWAPD"}, \ + {(unsigned long)__GFP_OTHER_NODE, "GFP_OTHER_NODE"} \ ) : "GFP_NOWAIT" diff --git a/include/xen/events.h b/include/xen/events.h index f1b87ad48ac..9af21e19545 100644 --- a/include/xen/events.h +++ b/include/xen/events.h @@ -85,7 +85,8 @@ int xen_bind_pirq_gsi_to_irq(unsigned gsi, int xen_allocate_pirq_msi(struct pci_dev *dev, struct msi_desc *msidesc); /* Bind an PSI pirq to an irq. */ int xen_bind_pirq_msi_to_irq(struct pci_dev *dev, struct msi_desc *msidesc, - int pirq, int vector, const char *name); + int pirq, int vector, const char *name, + domid_t domid); #endif /* De-allocates the above mentioned physical interrupt. */ @@ -94,4 +95,10 @@ int xen_destroy_irq(int irq); /* Return irq from pirq */ int xen_irq_from_pirq(unsigned pirq); +/* Return the pirq allocated to the irq. */ +int xen_pirq_from_irq(unsigned irq); + +/* Determine whether to ignore this IRQ if it is passed to a guest. */ +int xen_test_irq_shared(int irq); + #endif /* _XEN_EVENTS_H */ diff --git a/init/Kconfig b/init/Kconfig index 2d964fa40f5..4986ecc49e6 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -827,6 +827,11 @@ config SCHED_AUTOGROUP desktop applications. Task group autogeneration is currently based upon task session. +config SCHED_TTWU_QUEUE + bool + depends on !SPARC32 + default y + config MM_OWNER bool @@ -1226,7 +1231,6 @@ config SLAB per cpu and per node queues. config SLUB - depends on BROKEN || NUMA || !DISCONTIGMEM bool "SLUB (Unqueued Allocator)" help SLUB is a slab allocator that minimizes cache line usage diff --git a/init/main.c b/init/main.c index 4a9479ef454..48df882d51d 100644 --- a/init/main.c +++ b/init/main.c @@ -580,8 +580,8 @@ asmlinkage void __init start_kernel(void) #endif page_cgroup_init(); enable_debug_pagealloc(); - kmemleak_init(); debug_objects_mem_init(); + kmemleak_init(); setup_per_cpu_pageset(); numa_policy_init(); if (late_time_init) diff --git a/kernel/Makefile b/kernel/Makefile index 85cbfb31e73..e9cf19155b4 100644 --- a/kernel/Makefile +++ b/kernel/Makefile @@ -21,7 +21,6 @@ CFLAGS_REMOVE_mutex-debug.o = -pg CFLAGS_REMOVE_rtmutex-debug.o = -pg CFLAGS_REMOVE_cgroup-debug.o = -pg CFLAGS_REMOVE_sched_clock.o = -pg -CFLAGS_REMOVE_perf_event.o = -pg CFLAGS_REMOVE_irq_work.o = -pg endif @@ -103,8 +102,9 @@ obj-$(CONFIG_RING_BUFFER) += trace/ obj-$(CONFIG_TRACEPOINTS) += trace/ obj-$(CONFIG_SMP) += sched_cpupri.o obj-$(CONFIG_IRQ_WORK) += irq_work.o -obj-$(CONFIG_PERF_EVENTS) += perf_event.o -obj-$(CONFIG_HAVE_HW_BREAKPOINT) += hw_breakpoint.o + +obj-$(CONFIG_PERF_EVENTS) += events/ + obj-$(CONFIG_USER_RETURN_NOTIFIER) += user-return-notifier.o obj-$(CONFIG_PADATA) += padata.o obj-$(CONFIG_CRASH_DUMP) += crash_dump.o diff --git a/kernel/capability.c b/kernel/capability.c index bf0c734d0c1..32a80e08ff4 100644 --- a/kernel/capability.c +++ b/kernel/capability.c @@ -399,3 +399,15 @@ bool task_ns_capable(struct task_struct *t, int cap) return ns_capable(task_cred_xxx(t, user)->user_ns, cap); } EXPORT_SYMBOL(task_ns_capable); + +/** + * nsown_capable - Check superior capability to one's own user_ns + * @cap: The capability in question + * + * Return true if the current task has the given superior capability + * targeted at its own user namespace. + */ +bool nsown_capable(int cap) +{ + return ns_capable(current_user_ns(), cap); +} diff --git a/kernel/cpuset.c b/kernel/cpuset.c index 33eee16addb..2bb8c2e98ff 100644 --- a/kernel/cpuset.c +++ b/kernel/cpuset.c @@ -1159,7 +1159,7 @@ int current_cpuset_is_being_rebound(void) static int update_relax_domain_level(struct cpuset *cs, s64 val) { #ifdef CONFIG_SMP - if (val < -1 || val >= SD_LV_MAX) + if (val < -1 || val >= sched_domain_level_max) return -EINVAL; #endif diff --git a/kernel/cred.c b/kernel/cred.c index 5557b55048d..8093c16b84b 100644 --- a/kernel/cred.c +++ b/kernel/cred.c @@ -54,6 +54,7 @@ struct cred init_cred = { .cap_effective = CAP_INIT_EFF_SET, .cap_bset = CAP_INIT_BSET, .user = INIT_USER, + .user_ns = &init_user_ns, .group_info = &init_groups, #ifdef CONFIG_KEYS .tgcred = &init_tgcred, @@ -410,6 +411,11 @@ int copy_creds(struct task_struct *p, unsigned long clone_flags) goto error_put; } + /* cache user_ns in cred. Doesn't need a refcount because it will + * stay pinned by cred->user + */ + new->user_ns = new->user->user_ns; + #ifdef CONFIG_KEYS /* new threads get their own thread keyrings if their parent already * had one */ @@ -741,12 +747,6 @@ int set_create_files_as(struct cred *new, struct inode *inode) } EXPORT_SYMBOL(set_create_files_as); -struct user_namespace *current_user_ns(void) -{ - return _current_user_ns(); -} -EXPORT_SYMBOL(current_user_ns); - #ifdef CONFIG_DEBUG_CREDENTIALS bool creds_are_invalid(const struct cred *cred) diff --git a/kernel/events/Makefile b/kernel/events/Makefile new file mode 100644 index 00000000000..1ce23d3d839 --- /dev/null +++ b/kernel/events/Makefile @@ -0,0 +1,6 @@ +ifdef CONFIG_FUNCTION_TRACER +CFLAGS_REMOVE_core.o = -pg +endif + +obj-y := core.o +obj-$(CONFIG_HAVE_HW_BREAKPOINT) += hw_breakpoint.o diff --git a/kernel/perf_event.c b/kernel/events/core.c index b90d660fc87..c09767f7db3 100644 --- a/kernel/perf_event.c +++ b/kernel/events/core.c @@ -2,8 +2,8 @@ * Performance events core code: * * Copyright (C) 2008 Thomas Gleixner <tglx@linutronix.de> - * Copyright (C) 2008-2009 Red Hat, Inc., Ingo Molnar - * Copyright (C) 2008-2009 Red Hat, Inc., Peter Zijlstra <pzijlstr@redhat.com> + * Copyright (C) 2008-2011 Red Hat, Inc., Ingo Molnar + * Copyright (C) 2008-2011 Red Hat, Inc., Peter Zijlstra <pzijlstr@redhat.com> * Copyright © 2009 Paul Mackerras, IBM Corp. <paulus@au1.ibm.com> * * For licensing details see kernel-base/COPYING @@ -39,10 +39,10 @@ #include <asm/irq_regs.h> struct remote_function_call { - struct task_struct *p; - int (*func)(void *info); - void *info; - int ret; + struct task_struct *p; + int (*func)(void *info); + void *info; + int ret; }; static void remote_function(void *data) @@ -76,10 +76,10 @@ static int task_function_call(struct task_struct *p, int (*func) (void *info), void *info) { struct remote_function_call data = { - .p = p, - .func = func, - .info = info, - .ret = -ESRCH, /* No such (running) process */ + .p = p, + .func = func, + .info = info, + .ret = -ESRCH, /* No such (running) process */ }; if (task_curr(p)) @@ -100,10 +100,10 @@ task_function_call(struct task_struct *p, int (*func) (void *info), void *info) static int cpu_function_call(int cpu, int (*func) (void *info), void *info) { struct remote_function_call data = { - .p = NULL, - .func = func, - .info = info, - .ret = -ENXIO, /* No such CPU */ + .p = NULL, + .func = func, + .info = info, + .ret = -ENXIO, /* No such CPU */ }; smp_call_function_single(cpu, remote_function, &data, 1); @@ -125,7 +125,7 @@ enum event_type_t { * perf_sched_events : >0 events exist * perf_cgroup_events: >0 per-cpu cgroup events exist on this cpu */ -atomic_t perf_sched_events __read_mostly; +struct jump_label_key perf_sched_events __read_mostly; static DEFINE_PER_CPU(atomic_t, perf_cgroup_events); static atomic_t nr_mmap_events __read_mostly; @@ -5413,7 +5413,7 @@ fail: return err; } -atomic_t perf_swevent_enabled[PERF_COUNT_SW_MAX]; +struct jump_label_key perf_swevent_enabled[PERF_COUNT_SW_MAX]; static void sw_perf_event_destroy(struct perf_event *event) { @@ -7429,11 +7429,11 @@ static void perf_cgroup_exit(struct cgroup_subsys *ss, struct cgroup *cgrp, } struct cgroup_subsys perf_subsys = { - .name = "perf_event", - .subsys_id = perf_subsys_id, - .create = perf_cgroup_create, - .destroy = perf_cgroup_destroy, - .exit = perf_cgroup_exit, - .attach = perf_cgroup_attach, + .name = "perf_event", + .subsys_id = perf_subsys_id, + .create = perf_cgroup_create, + .destroy = perf_cgroup_destroy, + .exit = perf_cgroup_exit, + .attach = perf_cgroup_attach, }; #endif /* CONFIG_CGROUP_PERF */ diff --git a/kernel/hw_breakpoint.c b/kernel/events/hw_breakpoint.c index 086adf25a55..086adf25a55 100644 --- a/kernel/hw_breakpoint.c +++ b/kernel/events/hw_breakpoint.c diff --git a/kernel/exit.c b/kernel/exit.c index f5d2f63bae0..8dd87418154 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -1016,7 +1016,7 @@ NORET_TYPE void do_exit(long code) /* * FIXME: do that only when needed, using sched_exit tracepoint */ - flush_ptrace_hw_breakpoint(tsk); + ptrace_put_breakpoints(tsk); exit_notify(tsk, group_dead); #ifdef CONFIG_NUMA diff --git a/kernel/extable.c b/kernel/extable.c index 7f8f263f852..c2d625fcda7 100644 --- a/kernel/extable.c +++ b/kernel/extable.c @@ -72,6 +72,14 @@ int core_kernel_text(unsigned long addr) return 0; } +int core_kernel_data(unsigned long addr) +{ + if (addr >= (unsigned long)_sdata && + addr < (unsigned long)_edata) + return 1; + return 0; +} + int __kernel_text_address(unsigned long addr) { if (core_kernel_text(addr)) diff --git a/kernel/fork.c b/kernel/fork.c index e7548dee636..2b44d82b823 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -1103,7 +1103,6 @@ static struct task_struct *copy_process(unsigned long clone_flags, posix_cpu_timers_init(p); - p->lock_depth = -1; /* -1 = no lock */ do_posix_clock_monotonic_gettime(&p->start_time); p->real_start_time = p->start_time; monotonic_to_bootbased(&p->real_start_time); @@ -1153,7 +1152,7 @@ static struct task_struct *copy_process(unsigned long clone_flags, #endif /* Perform scheduler related setup. Assign this task to a CPU. */ - sched_fork(p, clone_flags); + sched_fork(p); retval = perf_event_init_task(p); if (retval) @@ -1464,7 +1463,7 @@ long do_fork(unsigned long clone_flags, */ p->flags &= ~PF_STARTING; - wake_up_new_task(p, clone_flags); + wake_up_new_task(p); tracehook_report_clone_complete(trace, regs, clone_flags, nr, p); diff --git a/kernel/freezer.c b/kernel/freezer.c index 66ecd2ead21..7b01de98bb6 100644 --- a/kernel/freezer.c +++ b/kernel/freezer.c @@ -17,7 +17,7 @@ static inline void frozen_process(void) { if (!unlikely(current->flags & PF_NOFREEZE)) { current->flags |= PF_FROZEN; - wmb(); + smp_wmb(); } clear_freeze_flag(current); } @@ -93,7 +93,7 @@ bool freeze_task(struct task_struct *p, bool sig_only) * the task as frozen and next clears its TIF_FREEZE. */ if (!freezing(p)) { - rmb(); + smp_rmb(); if (frozen(p)) return false; diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c index 87fdb3f8db1..dbbbf7d4308 100644 --- a/kernel/hrtimer.c +++ b/kernel/hrtimer.c @@ -81,7 +81,7 @@ DEFINE_PER_CPU(struct hrtimer_cpu_base, hrtimer_bases) = } }; -static int hrtimer_clock_to_base_table[MAX_CLOCKS] = { +static const int hrtimer_clock_to_base_table[MAX_CLOCKS] = { [CLOCK_REALTIME] = HRTIMER_BASE_REALTIME, [CLOCK_MONOTONIC] = HRTIMER_BASE_MONOTONIC, [CLOCK_BOOTTIME] = HRTIMER_BASE_BOOTTIME, diff --git a/kernel/hung_task.c b/kernel/hung_task.c index 53ead174da2..ea640120ab8 100644 --- a/kernel/hung_task.c +++ b/kernel/hung_task.c @@ -33,7 +33,7 @@ unsigned long __read_mostly sysctl_hung_task_check_count = PID_MAX_LIMIT; /* * Zero means infinite timeout - no checking done: */ -unsigned long __read_mostly sysctl_hung_task_timeout_secs = 120; +unsigned long __read_mostly sysctl_hung_task_timeout_secs = CONFIG_DEFAULT_HUNG_TASK_TIMEOUT; unsigned long __read_mostly sysctl_hung_task_warnings = 10; diff --git a/kernel/irq/Kconfig b/kernel/irq/Kconfig index c574f9a12c4..d1d051b38e0 100644 --- a/kernel/irq/Kconfig +++ b/kernel/irq/Kconfig @@ -48,6 +48,10 @@ config IRQ_PREFLOW_FASTEOI config IRQ_EDGE_EOI_HANDLER bool +# Generic configurable interrupt chip implementation +config GENERIC_IRQ_CHIP + bool + # Support forced irq threading config IRQ_FORCED_THREADING bool diff --git a/kernel/irq/Makefile b/kernel/irq/Makefile index 54329cd7b3e..73290056cfb 100644 --- a/kernel/irq/Makefile +++ b/kernel/irq/Makefile @@ -1,5 +1,6 @@ obj-y := irqdesc.o handle.o manage.o spurious.o resend.o chip.o dummychip.o devres.o +obj-$(CONFIG_GENERIC_IRQ_CHIP) += generic-chip.o obj-$(CONFIG_GENERIC_IRQ_PROBE) += autoprobe.o obj-$(CONFIG_PROC_FS) += proc.o obj-$(CONFIG_GENERIC_PENDING_IRQ) += migration.o diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c index 4af1e2b244c..d5a3009da71 100644 --- a/kernel/irq/chip.c +++ b/kernel/irq/chip.c @@ -310,6 +310,7 @@ handle_simple_irq(unsigned int irq, struct irq_desc *desc) out_unlock: raw_spin_unlock(&desc->lock); } +EXPORT_SYMBOL_GPL(handle_simple_irq); /** * handle_level_irq - Level type irq handler @@ -573,6 +574,7 @@ __irq_set_handler(unsigned int irq, irq_flow_handler_t handle, int is_chained, if (handle != handle_bad_irq && is_chained) { irq_settings_set_noprobe(desc); irq_settings_set_norequest(desc); + irq_settings_set_nothread(desc); irq_startup(desc); } out: @@ -612,6 +614,7 @@ void irq_modify_status(unsigned int irq, unsigned long clr, unsigned long set) irq_put_desc_unlock(desc, flags); } +EXPORT_SYMBOL_GPL(irq_modify_status); /** * irq_cpu_online - Invoke all irq_cpu_online functions. diff --git a/kernel/irq/debug.h b/kernel/irq/debug.h index 306cba37e9a..97a8bfadc88 100644 --- a/kernel/irq/debug.h +++ b/kernel/irq/debug.h @@ -27,6 +27,7 @@ static inline void print_irq_desc(unsigned int irq, struct irq_desc *desc) P(IRQ_PER_CPU); P(IRQ_NOPROBE); P(IRQ_NOREQUEST); + P(IRQ_NOTHREAD); P(IRQ_NOAUTOEN); PS(IRQS_AUTODETECT); diff --git a/kernel/irq/generic-chip.c b/kernel/irq/generic-chip.c new file mode 100644 index 00000000000..31a9db71190 --- /dev/null +++ b/kernel/irq/generic-chip.c @@ -0,0 +1,354 @@ +/* + * Library implementing the most common irq chip callback functions + * + * Copyright (C) 2011, Thomas Gleixner + */ +#include <linux/io.h> +#include <linux/irq.h> +#include <linux/slab.h> +#include <linux/interrupt.h> +#include <linux/kernel_stat.h> +#include <linux/syscore_ops.h> + +#include "internals.h" + +static LIST_HEAD(gc_list); +static DEFINE_RAW_SPINLOCK(gc_lock); + +static inline struct irq_chip_regs *cur_regs(struct irq_data *d) +{ + return &container_of(d->chip, struct irq_chip_type, chip)->regs; +} + +/** + * irq_gc_noop - NOOP function + * @d: irq_data + */ +void irq_gc_noop(struct irq_data *d) +{ +} + +/** + * irq_gc_mask_disable_reg - Mask chip via disable register + * @d: irq_data + * + * Chip has separate enable/disable registers instead of a single mask + * register. + */ +void irq_gc_mask_disable_reg(struct irq_data *d) +{ + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d); + u32 mask = 1 << (d->irq - gc->irq_base); + + irq_gc_lock(gc); + irq_reg_writel(mask, gc->reg_base + cur_regs(d)->disable); + gc->mask_cache &= ~mask; + irq_gc_unlock(gc); +} + +/** + * irq_gc_mask_set_mask_bit - Mask chip via setting bit in mask register + * @d: irq_data + * + * Chip has a single mask register. Values of this register are cached + * and protected by gc->lock + */ +void irq_gc_mask_set_bit(struct irq_data *d) +{ + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d); + u32 mask = 1 << (d->irq - gc->irq_base); + + irq_gc_lock(gc); + gc->mask_cache |= mask; + irq_reg_writel(gc->mask_cache, gc->reg_base + cur_regs(d)->mask); + irq_gc_unlock(gc); +} + +/** + * irq_gc_mask_set_mask_bit - Mask chip via clearing bit in mask register + * @d: irq_data + * + * Chip has a single mask register. Values of this register are cached + * and protected by gc->lock + */ +void irq_gc_mask_clr_bit(struct irq_data *d) +{ + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d); + u32 mask = 1 << (d->irq - gc->irq_base); + + irq_gc_lock(gc); + gc->mask_cache &= ~mask; + irq_reg_writel(gc->mask_cache, gc->reg_base + cur_regs(d)->mask); + irq_gc_unlock(gc); +} + +/** + * irq_gc_unmask_enable_reg - Unmask chip via enable register + * @d: irq_data + * + * Chip has separate enable/disable registers instead of a single mask + * register. + */ +void irq_gc_unmask_enable_reg(struct irq_data *d) +{ + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d); + u32 mask = 1 << (d->irq - gc->irq_base); + + irq_gc_lock(gc); + irq_reg_writel(mask, gc->reg_base + cur_regs(d)->enable); + gc->mask_cache |= mask; + irq_gc_unlock(gc); +} + +/** + * irq_gc_ack - Ack pending interrupt + * @d: irq_data + */ +void irq_gc_ack(struct irq_data *d) +{ + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d); + u32 mask = 1 << (d->irq - gc->irq_base); + + irq_gc_lock(gc); + irq_reg_writel(mask, gc->reg_base + cur_regs(d)->ack); + irq_gc_unlock(gc); +} + +/** + * irq_gc_mask_disable_reg_and_ack- Mask and ack pending interrupt + * @d: irq_data + */ +void irq_gc_mask_disable_reg_and_ack(struct irq_data *d) +{ + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d); + u32 mask = 1 << (d->irq - gc->irq_base); + + irq_gc_lock(gc); + irq_reg_writel(mask, gc->reg_base + cur_regs(d)->mask); + irq_reg_writel(mask, gc->reg_base + cur_regs(d)->ack); + irq_gc_unlock(gc); +} + +/** + * irq_gc_eoi - EOI interrupt + * @d: irq_data + */ +void irq_gc_eoi(struct irq_data *d) +{ + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d); + u32 mask = 1 << (d->irq - gc->irq_base); + + irq_gc_lock(gc); + irq_reg_writel(mask, gc->reg_base + cur_regs(d)->eoi); + irq_gc_unlock(gc); +} + +/** + * irq_gc_set_wake - Set/clr wake bit for an interrupt + * @d: irq_data + * + * For chips where the wake from suspend functionality is not + * configured in a separate register and the wakeup active state is + * just stored in a bitmask. + */ +int irq_gc_set_wake(struct irq_data *d, unsigned int on) +{ + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d); + u32 mask = 1 << (d->irq - gc->irq_base); + + if (!(mask & gc->wake_enabled)) + return -EINVAL; + + irq_gc_lock(gc); + if (on) + gc->wake_active |= mask; + else + gc->wake_active &= ~mask; + irq_gc_unlock(gc); + return 0; +} + +/** + * irq_alloc_generic_chip - Allocate a generic chip and initialize it + * @name: Name of the irq chip + * @num_ct: Number of irq_chip_type instances associated with this + * @irq_base: Interrupt base nr for this chip + * @reg_base: Register base address (virtual) + * @handler: Default flow handler associated with this chip + * + * Returns an initialized irq_chip_generic structure. The chip defaults + * to the primary (index 0) irq_chip_type and @handler + */ +struct irq_chip_generic * +irq_alloc_generic_chip(const char *name, int num_ct, unsigned int irq_base, + void __iomem *reg_base, irq_flow_handler_t handler) +{ + struct irq_chip_generic *gc; + unsigned long sz = sizeof(*gc) + num_ct * sizeof(struct irq_chip_type); + + gc = kzalloc(sz, GFP_KERNEL); + if (gc) { + raw_spin_lock_init(&gc->lock); + gc->num_ct = num_ct; + gc->irq_base = irq_base; + gc->reg_base = reg_base; + gc->chip_types->chip.name = name; + gc->chip_types->handler = handler; + } + return gc; +} + +/* + * Separate lockdep class for interrupt chip which can nest irq_desc + * lock. + */ +static struct lock_class_key irq_nested_lock_class; + +/** + * irq_setup_generic_chip - Setup a range of interrupts with a generic chip + * @gc: Generic irq chip holding all data + * @msk: Bitmask holding the irqs to initialize relative to gc->irq_base + * @flags: Flags for initialization + * @clr: IRQ_* bits to clear + * @set: IRQ_* bits to set + * + * Set up max. 32 interrupts starting from gc->irq_base. Note, this + * initializes all interrupts to the primary irq_chip_type and its + * associated handler. + */ +void irq_setup_generic_chip(struct irq_chip_generic *gc, u32 msk, + enum irq_gc_flags flags, unsigned int clr, + unsigned int set) +{ + struct irq_chip_type *ct = gc->chip_types; + unsigned int i; + + raw_spin_lock(&gc_lock); + list_add_tail(&gc->list, &gc_list); + raw_spin_unlock(&gc_lock); + + /* Init mask cache ? */ + if (flags & IRQ_GC_INIT_MASK_CACHE) + gc->mask_cache = irq_reg_readl(gc->reg_base + ct->regs.mask); + + for (i = gc->irq_base; msk; msk >>= 1, i++) { + if (!msk & 0x01) + continue; + + if (flags & IRQ_GC_INIT_NESTED_LOCK) + irq_set_lockdep_class(i, &irq_nested_lock_class); + + irq_set_chip_and_handler(i, &ct->chip, ct->handler); + irq_set_chip_data(i, gc); + irq_modify_status(i, clr, set); + } + gc->irq_cnt = i - gc->irq_base; +} + +/** + * irq_setup_alt_chip - Switch to alternative chip + * @d: irq_data for this interrupt + * @type Flow type to be initialized + * + * Only to be called from chip->irq_set_type() callbacks. + */ +int irq_setup_alt_chip(struct irq_data *d, unsigned int type) +{ + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d); + struct irq_chip_type *ct = gc->chip_types; + unsigned int i; + + for (i = 0; i < gc->num_ct; i++, ct++) { + if (ct->type & type) { + d->chip = &ct->chip; + irq_data_to_desc(d)->handle_irq = ct->handler; + return 0; + } + } + return -EINVAL; +} + +/** + * irq_remove_generic_chip - Remove a chip + * @gc: Generic irq chip holding all data + * @msk: Bitmask holding the irqs to initialize relative to gc->irq_base + * @clr: IRQ_* bits to clear + * @set: IRQ_* bits to set + * + * Remove up to 32 interrupts starting from gc->irq_base. + */ +void irq_remove_generic_chip(struct irq_chip_generic *gc, u32 msk, + unsigned int clr, unsigned int set) +{ + unsigned int i = gc->irq_base; + + raw_spin_lock(&gc_lock); + list_del(&gc->list); + raw_spin_unlock(&gc_lock); + + for (; msk; msk >>= 1, i++) { + if (!msk & 0x01) + continue; + + /* Remove handler first. That will mask the irq line */ + irq_set_handler(i, NULL); + irq_set_chip(i, &no_irq_chip); + irq_set_chip_data(i, NULL); + irq_modify_status(i, clr, set); + } +} + +#ifdef CONFIG_PM +static int irq_gc_suspend(void) +{ + struct irq_chip_generic *gc; + + list_for_each_entry(gc, &gc_list, list) { + struct irq_chip_type *ct = gc->chip_types; + + if (ct->chip.irq_suspend) + ct->chip.irq_suspend(irq_get_irq_data(gc->irq_base)); + } + return 0; +} + +static void irq_gc_resume(void) +{ + struct irq_chip_generic *gc; + + list_for_each_entry(gc, &gc_list, list) { + struct irq_chip_type *ct = gc->chip_types; + + if (ct->chip.irq_resume) + ct->chip.irq_resume(irq_get_irq_data(gc->irq_base)); + } +} +#else +#define irq_gc_suspend NULL +#define irq_gc_resume NULL +#endif + +static void irq_gc_shutdown(void) +{ + struct irq_chip_generic *gc; + + list_for_each_entry(gc, &gc_list, list) { + struct irq_chip_type *ct = gc->chip_types; + + if (ct->chip.irq_pm_shutdown) + ct->chip.irq_pm_shutdown(irq_get_irq_data(gc->irq_base)); + } +} + +static struct syscore_ops irq_gc_syscore_ops = { + .suspend = irq_gc_suspend, + .resume = irq_gc_resume, + .shutdown = irq_gc_shutdown, +}; + +static int __init irq_gc_init_ops(void) +{ + register_syscore_ops(&irq_gc_syscore_ops); + return 0; +} +device_initcall(irq_gc_init_ops); diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c index 2c039c9b938..886e80347b3 100644 --- a/kernel/irq/irqdesc.c +++ b/kernel/irq/irqdesc.c @@ -22,7 +22,7 @@ */ static struct lock_class_key irq_desc_lock_class; -#if defined(CONFIG_SMP) && defined(CONFIG_GENERIC_HARDIRQS) +#if defined(CONFIG_SMP) static void __init init_irq_default_affinity(void) { alloc_cpumask_var(&irq_default_affinity, GFP_NOWAIT); @@ -290,6 +290,22 @@ static int irq_expand_nr_irqs(unsigned int nr) #endif /* !CONFIG_SPARSE_IRQ */ +/** + * generic_handle_irq - Invoke the handler for a particular irq + * @irq: The irq number to handle + * + */ +int generic_handle_irq(unsigned int irq) +{ + struct irq_desc *desc = irq_to_desc(irq); + + if (!desc) + return -EINVAL; + generic_handle_irq_desc(irq, desc); + return 0; +} +EXPORT_SYMBOL_GPL(generic_handle_irq); + /* Dynamic interrupt handling */ /** @@ -311,6 +327,7 @@ void irq_free_descs(unsigned int from, unsigned int cnt) bitmap_clear(allocated_irqs, from, cnt); mutex_unlock(&sparse_irq_lock); } +EXPORT_SYMBOL_GPL(irq_free_descs); /** * irq_alloc_descs - allocate and initialize a range of irq descriptors @@ -351,6 +368,7 @@ err: mutex_unlock(&sparse_irq_lock); return ret; } +EXPORT_SYMBOL_GPL(irq_alloc_descs); /** * irq_reserve_irqs - mark irqs allocated @@ -430,7 +448,6 @@ unsigned int kstat_irqs_cpu(unsigned int irq, int cpu) *per_cpu_ptr(desc->kstat_irqs, cpu) : 0; } -#ifdef CONFIG_GENERIC_HARDIRQS unsigned int kstat_irqs(unsigned int irq) { struct irq_desc *desc = irq_to_desc(irq); @@ -443,4 +460,3 @@ unsigned int kstat_irqs(unsigned int irq) sum += *per_cpu_ptr(desc->kstat_irqs, cpu); return sum; } -#endif /* CONFIG_GENERIC_HARDIRQS */ diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index 07c1611f389..f7ce0021e1c 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -900,7 +900,8 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new) */ new->handler = irq_nested_primary_handler; } else { - irq_setup_forced_threading(new); + if (irq_settings_can_thread(desc)) + irq_setup_forced_threading(new); } /* diff --git a/kernel/irq/settings.h b/kernel/irq/settings.h index 0d91730b633..f1667833d44 100644 --- a/kernel/irq/settings.h +++ b/kernel/irq/settings.h @@ -8,6 +8,7 @@ enum { _IRQ_LEVEL = IRQ_LEVEL, _IRQ_NOPROBE = IRQ_NOPROBE, _IRQ_NOREQUEST = IRQ_NOREQUEST, + _IRQ_NOTHREAD = IRQ_NOTHREAD, _IRQ_NOAUTOEN = IRQ_NOAUTOEN, _IRQ_MOVE_PCNTXT = IRQ_MOVE_PCNTXT, _IRQ_NO_BALANCING = IRQ_NO_BALANCING, @@ -20,6 +21,7 @@ enum { #define IRQ_LEVEL GOT_YOU_MORON #define IRQ_NOPROBE GOT_YOU_MORON #define IRQ_NOREQUEST GOT_YOU_MORON +#define IRQ_NOTHREAD GOT_YOU_MORON #define IRQ_NOAUTOEN GOT_YOU_MORON #define IRQ_NESTED_THREAD GOT_YOU_MORON #undef IRQF_MODIFY_MASK @@ -94,6 +96,21 @@ static inline void irq_settings_set_norequest(struct irq_desc *desc) desc->status_use_accessors |= _IRQ_NOREQUEST; } +static inline bool irq_settings_can_thread(struct irq_desc *desc) +{ + return !(desc->status_use_accessors & _IRQ_NOTHREAD); +} + +static inline void irq_settings_clr_nothread(struct irq_desc *desc) +{ + desc->status_use_accessors &= ~_IRQ_NOTHREAD; +} + +static inline void irq_settings_set_nothread(struct irq_desc *desc) +{ + desc->status_use_accessors |= _IRQ_NOTHREAD; +} + static inline bool irq_settings_can_probe(struct irq_desc *desc) { return !(desc->status_use_accessors & _IRQ_NOPROBE); diff --git a/kernel/jump_label.c b/kernel/jump_label.c index 3b79bd93833..74d1c099fbd 100644 --- a/kernel/jump_label.c +++ b/kernel/jump_label.c @@ -2,43 +2,23 @@ * jump label support * * Copyright (C) 2009 Jason Baron <jbaron@redhat.com> + * Copyright (C) 2011 Peter Zijlstra <pzijlstr@redhat.com> * */ -#include <linux/jump_label.h> #include <linux/memory.h> #include <linux/uaccess.h> #include <linux/module.h> #include <linux/list.h> -#include <linux/jhash.h> #include <linux/slab.h> #include <linux/sort.h> #include <linux/err.h> +#include <linux/jump_label.h> #ifdef HAVE_JUMP_LABEL -#define JUMP_LABEL_HASH_BITS 6 -#define JUMP_LABEL_TABLE_SIZE (1 << JUMP_LABEL_HASH_BITS) -static struct hlist_head jump_label_table[JUMP_LABEL_TABLE_SIZE]; - /* mutex to protect coming/going of the the jump_label table */ static DEFINE_MUTEX(jump_label_mutex); -struct jump_label_entry { - struct hlist_node hlist; - struct jump_entry *table; - int nr_entries; - /* hang modules off here */ - struct hlist_head modules; - unsigned long key; -}; - -struct jump_label_module_entry { - struct hlist_node hlist; - struct jump_entry *table; - int nr_entries; - struct module *mod; -}; - void jump_label_lock(void) { mutex_lock(&jump_label_mutex); @@ -49,6 +29,11 @@ void jump_label_unlock(void) mutex_unlock(&jump_label_mutex); } +bool jump_label_enabled(struct jump_label_key *key) +{ + return !!atomic_read(&key->enabled); +} + static int jump_label_cmp(const void *a, const void *b) { const struct jump_entry *jea = a; @@ -64,7 +49,7 @@ static int jump_label_cmp(const void *a, const void *b) } static void -sort_jump_label_entries(struct jump_entry *start, struct jump_entry *stop) +jump_label_sort_entries(struct jump_entry *start, struct jump_entry *stop) { unsigned long size; @@ -73,118 +58,25 @@ sort_jump_label_entries(struct jump_entry *start, struct jump_entry *stop) sort(start, size, sizeof(struct jump_entry), jump_label_cmp, NULL); } -static struct jump_label_entry *get_jump_label_entry(jump_label_t key) -{ - struct hlist_head *head; - struct hlist_node *node; - struct jump_label_entry *e; - u32 hash = jhash((void *)&key, sizeof(jump_label_t), 0); - - head = &jump_label_table[hash & (JUMP_LABEL_TABLE_SIZE - 1)]; - hlist_for_each_entry(e, node, head, hlist) { - if (key == e->key) - return e; - } - return NULL; -} +static void jump_label_update(struct jump_label_key *key, int enable); -static struct jump_label_entry * -add_jump_label_entry(jump_label_t key, int nr_entries, struct jump_entry *table) +void jump_label_inc(struct jump_label_key *key) { - struct hlist_head *head; - struct jump_label_entry *e; - u32 hash; - - e = get_jump_label_entry(key); - if (e) - return ERR_PTR(-EEXIST); - - e = kmalloc(sizeof(struct jump_label_entry), GFP_KERNEL); - if (!e) - return ERR_PTR(-ENOMEM); - - hash = jhash((void *)&key, sizeof(jump_label_t), 0); - head = &jump_label_table[hash & (JUMP_LABEL_TABLE_SIZE - 1)]; - e->key = key; - e->table = table; - e->nr_entries = nr_entries; - INIT_HLIST_HEAD(&(e->modules)); - hlist_add_head(&e->hlist, head); - return e; -} + if (atomic_inc_not_zero(&key->enabled)) + return; -static int -build_jump_label_hashtable(struct jump_entry *start, struct jump_entry *stop) -{ - struct jump_entry *iter, *iter_begin; - struct jump_label_entry *entry; - int count; - - sort_jump_label_entries(start, stop); - iter = start; - while (iter < stop) { - entry = get_jump_label_entry(iter->key); - if (!entry) { - iter_begin = iter; - count = 0; - while ((iter < stop) && - (iter->key == iter_begin->key)) { - iter++; - count++; - } - entry = add_jump_label_entry(iter_begin->key, - count, iter_begin); - if (IS_ERR(entry)) - return PTR_ERR(entry); - } else { - WARN_ONCE(1, KERN_ERR "build_jump_hashtable: unexpected entry!\n"); - return -1; - } - } - return 0; + jump_label_lock(); + if (atomic_add_return(1, &key->enabled) == 1) + jump_label_update(key, JUMP_LABEL_ENABLE); + jump_label_unlock(); } -/*** - * jump_label_update - update jump label text - * @key - key value associated with a a jump label - * @type - enum set to JUMP_LABEL_ENABLE or JUMP_LABEL_DISABLE - * - * Will enable/disable the jump for jump label @key, depending on the - * value of @type. - * - */ - -void jump_label_update(unsigned long key, enum jump_label_type type) +void jump_label_dec(struct jump_label_key *key) { - struct jump_entry *iter; - struct jump_label_entry *entry; - struct hlist_node *module_node; - struct jump_label_module_entry *e_module; - int count; + if (!atomic_dec_and_mutex_lock(&key->enabled, &jump_label_mutex)) + return; - jump_label_lock(); - entry = get_jump_label_entry((jump_label_t)key); - if (entry) { - count = entry->nr_entries; - iter = entry->table; - while (count--) { - if (kernel_text_address(iter->code)) - arch_jump_label_transform(iter, type); - iter++; - } - /* eanble/disable jump labels in modules */ - hlist_for_each_entry(e_module, module_node, &(entry->modules), - hlist) { - count = e_module->nr_entries; - iter = e_module->table; - while (count--) { - if (iter->key && - kernel_text_address(iter->code)) - arch_jump_label_transform(iter, type); - iter++; - } - } - } + jump_label_update(key, JUMP_LABEL_DISABLE); jump_label_unlock(); } @@ -197,77 +89,33 @@ static int addr_conflict(struct jump_entry *entry, void *start, void *end) return 0; } -#ifdef CONFIG_MODULES - -static int module_conflict(void *start, void *end) +static int __jump_label_text_reserved(struct jump_entry *iter_start, + struct jump_entry *iter_stop, void *start, void *end) { - struct hlist_head *head; - struct hlist_node *node, *node_next, *module_node, *module_node_next; - struct jump_label_entry *e; - struct jump_label_module_entry *e_module; struct jump_entry *iter; - int i, count; - int conflict = 0; - - for (i = 0; i < JUMP_LABEL_TABLE_SIZE; i++) { - head = &jump_label_table[i]; - hlist_for_each_entry_safe(e, node, node_next, head, hlist) { - hlist_for_each_entry_safe(e_module, module_node, - module_node_next, - &(e->modules), hlist) { - count = e_module->nr_entries; - iter = e_module->table; - while (count--) { - if (addr_conflict(iter, start, end)) { - conflict = 1; - goto out; - } - iter++; - } - } - } - } -out: - return conflict; -} - -#endif - -/*** - * jump_label_text_reserved - check if addr range is reserved - * @start: start text addr - * @end: end text addr - * - * checks if the text addr located between @start and @end - * overlaps with any of the jump label patch addresses. Code - * that wants to modify kernel text should first verify that - * it does not overlap with any of the jump label addresses. - * Caller must hold jump_label_mutex. - * - * returns 1 if there is an overlap, 0 otherwise - */ -int jump_label_text_reserved(void *start, void *end) -{ - struct jump_entry *iter; - struct jump_entry *iter_start = __start___jump_table; - struct jump_entry *iter_stop = __start___jump_table; - int conflict = 0; iter = iter_start; while (iter < iter_stop) { - if (addr_conflict(iter, start, end)) { - conflict = 1; - goto out; - } + if (addr_conflict(iter, start, end)) + return 1; iter++; } - /* now check modules */ -#ifdef CONFIG_MODULES - conflict = module_conflict(start, end); -#endif -out: - return conflict; + return 0; +} + +static void __jump_label_update(struct jump_label_key *key, + struct jump_entry *entry, int enable) +{ + for (; entry->key == (jump_label_t)(unsigned long)key; entry++) { + /* + * entry->code set to 0 invalidates module init text sections + * kernel_text_address() verifies we are not in core kernel + * init code, see jump_label_invalidate_module_init(). + */ + if (entry->code && kernel_text_address(entry->code)) + arch_jump_label_transform(entry, enable); + } } /* @@ -277,142 +125,173 @@ void __weak arch_jump_label_text_poke_early(jump_label_t addr) { } -static __init int init_jump_label(void) +static __init int jump_label_init(void) { - int ret; struct jump_entry *iter_start = __start___jump_table; struct jump_entry *iter_stop = __stop___jump_table; + struct jump_label_key *key = NULL; struct jump_entry *iter; jump_label_lock(); - ret = build_jump_label_hashtable(__start___jump_table, - __stop___jump_table); - iter = iter_start; - while (iter < iter_stop) { + jump_label_sort_entries(iter_start, iter_stop); + + for (iter = iter_start; iter < iter_stop; iter++) { arch_jump_label_text_poke_early(iter->code); - iter++; + if (iter->key == (jump_label_t)(unsigned long)key) + continue; + + key = (struct jump_label_key *)(unsigned long)iter->key; + atomic_set(&key->enabled, 0); + key->entries = iter; +#ifdef CONFIG_MODULES + key->next = NULL; +#endif } jump_label_unlock(); - return ret; + + return 0; } -early_initcall(init_jump_label); +early_initcall(jump_label_init); #ifdef CONFIG_MODULES -static struct jump_label_module_entry * -add_jump_label_module_entry(struct jump_label_entry *entry, - struct jump_entry *iter_begin, - int count, struct module *mod) +struct jump_label_mod { + struct jump_label_mod *next; + struct jump_entry *entries; + struct module *mod; +}; + +static int __jump_label_mod_text_reserved(void *start, void *end) +{ + struct module *mod; + + mod = __module_text_address((unsigned long)start); + if (!mod) + return 0; + + WARN_ON_ONCE(__module_text_address((unsigned long)end) != mod); + + return __jump_label_text_reserved(mod->jump_entries, + mod->jump_entries + mod->num_jump_entries, + start, end); +} + +static void __jump_label_mod_update(struct jump_label_key *key, int enable) +{ + struct jump_label_mod *mod = key->next; + + while (mod) { + __jump_label_update(key, mod->entries, enable); + mod = mod->next; + } +} + +/*** + * apply_jump_label_nops - patch module jump labels with arch_get_jump_label_nop() + * @mod: module to patch + * + * Allow for run-time selection of the optimal nops. Before the module + * loads patch these with arch_get_jump_label_nop(), which is specified by + * the arch specific jump label code. + */ +void jump_label_apply_nops(struct module *mod) { - struct jump_label_module_entry *e; - - e = kmalloc(sizeof(struct jump_label_module_entry), GFP_KERNEL); - if (!e) - return ERR_PTR(-ENOMEM); - e->mod = mod; - e->nr_entries = count; - e->table = iter_begin; - hlist_add_head(&e->hlist, &entry->modules); - return e; + struct jump_entry *iter_start = mod->jump_entries; + struct jump_entry *iter_stop = iter_start + mod->num_jump_entries; + struct jump_entry *iter; + + /* if the module doesn't have jump label entries, just return */ + if (iter_start == iter_stop) + return; + + for (iter = iter_start; iter < iter_stop; iter++) + arch_jump_label_text_poke_early(iter->code); } -static int add_jump_label_module(struct module *mod) +static int jump_label_add_module(struct module *mod) { - struct jump_entry *iter, *iter_begin; - struct jump_label_entry *entry; - struct jump_label_module_entry *module_entry; - int count; + struct jump_entry *iter_start = mod->jump_entries; + struct jump_entry *iter_stop = iter_start + mod->num_jump_entries; + struct jump_entry *iter; + struct jump_label_key *key = NULL; + struct jump_label_mod *jlm; /* if the module doesn't have jump label entries, just return */ - if (!mod->num_jump_entries) + if (iter_start == iter_stop) return 0; - sort_jump_label_entries(mod->jump_entries, - mod->jump_entries + mod->num_jump_entries); - iter = mod->jump_entries; - while (iter < mod->jump_entries + mod->num_jump_entries) { - entry = get_jump_label_entry(iter->key); - iter_begin = iter; - count = 0; - while ((iter < mod->jump_entries + mod->num_jump_entries) && - (iter->key == iter_begin->key)) { - iter++; - count++; - } - if (!entry) { - entry = add_jump_label_entry(iter_begin->key, 0, NULL); - if (IS_ERR(entry)) - return PTR_ERR(entry); + jump_label_sort_entries(iter_start, iter_stop); + + for (iter = iter_start; iter < iter_stop; iter++) { + if (iter->key == (jump_label_t)(unsigned long)key) + continue; + + key = (struct jump_label_key *)(unsigned long)iter->key; + + if (__module_address(iter->key) == mod) { + atomic_set(&key->enabled, 0); + key->entries = iter; + key->next = NULL; + continue; } - module_entry = add_jump_label_module_entry(entry, iter_begin, - count, mod); - if (IS_ERR(module_entry)) - return PTR_ERR(module_entry); + + jlm = kzalloc(sizeof(struct jump_label_mod), GFP_KERNEL); + if (!jlm) + return -ENOMEM; + + jlm->mod = mod; + jlm->entries = iter; + jlm->next = key->next; + key->next = jlm; + + if (jump_label_enabled(key)) + __jump_label_update(key, iter, JUMP_LABEL_ENABLE); } + return 0; } -static void remove_jump_label_module(struct module *mod) +static void jump_label_del_module(struct module *mod) { - struct hlist_head *head; - struct hlist_node *node, *node_next, *module_node, *module_node_next; - struct jump_label_entry *e; - struct jump_label_module_entry *e_module; - int i; + struct jump_entry *iter_start = mod->jump_entries; + struct jump_entry *iter_stop = iter_start + mod->num_jump_entries; + struct jump_entry *iter; + struct jump_label_key *key = NULL; + struct jump_label_mod *jlm, **prev; - /* if the module doesn't have jump label entries, just return */ - if (!mod->num_jump_entries) - return; + for (iter = iter_start; iter < iter_stop; iter++) { + if (iter->key == (jump_label_t)(unsigned long)key) + continue; + + key = (struct jump_label_key *)(unsigned long)iter->key; + + if (__module_address(iter->key) == mod) + continue; + + prev = &key->next; + jlm = key->next; - for (i = 0; i < JUMP_LABEL_TABLE_SIZE; i++) { - head = &jump_label_table[i]; - hlist_for_each_entry_safe(e, node, node_next, head, hlist) { - hlist_for_each_entry_safe(e_module, module_node, - module_node_next, - &(e->modules), hlist) { - if (e_module->mod == mod) { - hlist_del(&e_module->hlist); - kfree(e_module); - } - } - if (hlist_empty(&e->modules) && (e->nr_entries == 0)) { - hlist_del(&e->hlist); - kfree(e); - } + while (jlm && jlm->mod != mod) { + prev = &jlm->next; + jlm = jlm->next; + } + + if (jlm) { + *prev = jlm->next; + kfree(jlm); } } } -static void remove_jump_label_module_init(struct module *mod) +static void jump_label_invalidate_module_init(struct module *mod) { - struct hlist_head *head; - struct hlist_node *node, *node_next, *module_node, *module_node_next; - struct jump_label_entry *e; - struct jump_label_module_entry *e_module; + struct jump_entry *iter_start = mod->jump_entries; + struct jump_entry *iter_stop = iter_start + mod->num_jump_entries; struct jump_entry *iter; - int i, count; - - /* if the module doesn't have jump label entries, just return */ - if (!mod->num_jump_entries) - return; - for (i = 0; i < JUMP_LABEL_TABLE_SIZE; i++) { - head = &jump_label_table[i]; - hlist_for_each_entry_safe(e, node, node_next, head, hlist) { - hlist_for_each_entry_safe(e_module, module_node, - module_node_next, - &(e->modules), hlist) { - if (e_module->mod != mod) - continue; - count = e_module->nr_entries; - iter = e_module->table; - while (count--) { - if (within_module_init(iter->code, mod)) - iter->key = 0; - iter++; - } - } - } + for (iter = iter_start; iter < iter_stop; iter++) { + if (within_module_init(iter->code, mod)) + iter->code = 0; } } @@ -426,59 +305,77 @@ jump_label_module_notify(struct notifier_block *self, unsigned long val, switch (val) { case MODULE_STATE_COMING: jump_label_lock(); - ret = add_jump_label_module(mod); + ret = jump_label_add_module(mod); if (ret) - remove_jump_label_module(mod); + jump_label_del_module(mod); jump_label_unlock(); break; case MODULE_STATE_GOING: jump_label_lock(); - remove_jump_label_module(mod); + jump_label_del_module(mod); jump_label_unlock(); break; case MODULE_STATE_LIVE: jump_label_lock(); - remove_jump_label_module_init(mod); + jump_label_invalidate_module_init(mod); jump_label_unlock(); break; } - return ret; -} -/*** - * apply_jump_label_nops - patch module jump labels with arch_get_jump_label_nop() - * @mod: module to patch - * - * Allow for run-time selection of the optimal nops. Before the module - * loads patch these with arch_get_jump_label_nop(), which is specified by - * the arch specific jump label code. - */ -void jump_label_apply_nops(struct module *mod) -{ - struct jump_entry *iter; - - /* if the module doesn't have jump label entries, just return */ - if (!mod->num_jump_entries) - return; - - iter = mod->jump_entries; - while (iter < mod->jump_entries + mod->num_jump_entries) { - arch_jump_label_text_poke_early(iter->code); - iter++; - } + return notifier_from_errno(ret); } struct notifier_block jump_label_module_nb = { .notifier_call = jump_label_module_notify, - .priority = 0, + .priority = 1, /* higher than tracepoints */ }; -static __init int init_jump_label_module(void) +static __init int jump_label_init_module(void) { return register_module_notifier(&jump_label_module_nb); } -early_initcall(init_jump_label_module); +early_initcall(jump_label_init_module); #endif /* CONFIG_MODULES */ +/*** + * jump_label_text_reserved - check if addr range is reserved + * @start: start text addr + * @end: end text addr + * + * checks if the text addr located between @start and @end + * overlaps with any of the jump label patch addresses. Code + * that wants to modify kernel text should first verify that + * it does not overlap with any of the jump label addresses. + * Caller must hold jump_label_mutex. + * + * returns 1 if there is an overlap, 0 otherwise + */ +int jump_label_text_reserved(void *start, void *end) +{ + int ret = __jump_label_text_reserved(__start___jump_table, + __stop___jump_table, start, end); + + if (ret) + return ret; + +#ifdef CONFIG_MODULES + ret = __jump_label_mod_text_reserved(start, end); +#endif + return ret; +} + +static void jump_label_update(struct jump_label_key *key, int enable) +{ + struct jump_entry *entry = key->entries; + + /* if there are no users, entry can be NULL */ + if (entry) + __jump_label_update(key, entry, enable); + +#ifdef CONFIG_MODULES + __jump_label_mod_update(key, enable); +#endif +} + #endif diff --git a/kernel/kexec.c b/kernel/kexec.c index 87b77de03dd..8d814cbc810 100644 --- a/kernel/kexec.c +++ b/kernel/kexec.c @@ -1531,13 +1531,7 @@ int kernel_kexec(void) if (error) goto Enable_cpus; local_irq_disable(); - /* Suspend system devices */ - error = sysdev_suspend(PMSG_FREEZE); - if (!error) { - error = syscore_suspend(); - if (error) - sysdev_resume(); - } + error = syscore_suspend(); if (error) goto Enable_irqs; } else @@ -1553,7 +1547,6 @@ int kernel_kexec(void) #ifdef CONFIG_KEXEC_JUMP if (kexec_image->preserve_context) { syscore_resume(); - sysdev_resume(); Enable_irqs: local_irq_enable(); Enable_cpus: diff --git a/kernel/kmod.c b/kernel/kmod.c index 9cd0591c96a..5ae0ff38425 100644 --- a/kernel/kmod.c +++ b/kernel/kmod.c @@ -245,7 +245,6 @@ static void __call_usermodehelper(struct work_struct *work) } } -#ifdef CONFIG_PM_SLEEP /* * If set, call_usermodehelper_exec() will exit immediately returning -EBUSY * (used for preventing user land processes from being created after the user @@ -301,6 +300,15 @@ void usermodehelper_enable(void) usermodehelper_disabled = 0; } +/** + * usermodehelper_is_disabled - check if new helpers are allowed to be started + */ +bool usermodehelper_is_disabled(void) +{ + return usermodehelper_disabled; +} +EXPORT_SYMBOL_GPL(usermodehelper_is_disabled); + static void helper_lock(void) { atomic_inc(&running_helpers); @@ -312,12 +320,6 @@ static void helper_unlock(void) if (atomic_dec_and_test(&running_helpers)) wake_up(&running_helpers_waitq); } -#else /* CONFIG_PM_SLEEP */ -#define usermodehelper_disabled 0 - -static inline void helper_lock(void) {} -static inline void helper_unlock(void) {} -#endif /* CONFIG_PM_SLEEP */ /** * call_usermodehelper_setup - prepare to call a usermode helper diff --git a/kernel/lockdep.c b/kernel/lockdep.c index 53a68956f13..63437d065ac 100644 --- a/kernel/lockdep.c +++ b/kernel/lockdep.c @@ -490,6 +490,18 @@ void get_usage_chars(struct lock_class *class, char usage[LOCK_USAGE_CHARS]) usage[i] = '\0'; } +static int __print_lock_name(struct lock_class *class) +{ + char str[KSYM_NAME_LEN]; + const char *name; + + name = class->name; + if (!name) + name = __get_key_name(class->key, str); + + return printk("%s", name); +} + static void print_lock_name(struct lock_class *class) { char str[KSYM_NAME_LEN], usage[LOCK_USAGE_CHARS]; @@ -1053,6 +1065,56 @@ print_circular_bug_entry(struct lock_list *target, int depth) return 0; } +static void +print_circular_lock_scenario(struct held_lock *src, + struct held_lock *tgt, + struct lock_list *prt) +{ + struct lock_class *source = hlock_class(src); + struct lock_class *target = hlock_class(tgt); + struct lock_class *parent = prt->class; + + /* + * A direct locking problem where unsafe_class lock is taken + * directly by safe_class lock, then all we need to show + * is the deadlock scenario, as it is obvious that the + * unsafe lock is taken under the safe lock. + * + * But if there is a chain instead, where the safe lock takes + * an intermediate lock (middle_class) where this lock is + * not the same as the safe lock, then the lock chain is + * used to describe the problem. Otherwise we would need + * to show a different CPU case for each link in the chain + * from the safe_class lock to the unsafe_class lock. + */ + if (parent != source) { + printk("Chain exists of:\n "); + __print_lock_name(source); + printk(" --> "); + __print_lock_name(parent); + printk(" --> "); + __print_lock_name(target); + printk("\n\n"); + } + + printk(" Possible unsafe locking scenario:\n\n"); + printk(" CPU0 CPU1\n"); + printk(" ---- ----\n"); + printk(" lock("); + __print_lock_name(target); + printk(");\n"); + printk(" lock("); + __print_lock_name(parent); + printk(");\n"); + printk(" lock("); + __print_lock_name(target); + printk(");\n"); + printk(" lock("); + __print_lock_name(source); + printk(");\n"); + printk("\n *** DEADLOCK ***\n\n"); +} + /* * When a circular dependency is detected, print the * header first: @@ -1096,6 +1158,7 @@ static noinline int print_circular_bug(struct lock_list *this, { struct task_struct *curr = current; struct lock_list *parent; + struct lock_list *first_parent; int depth; if (!debug_locks_off_graph_unlock() || debug_locks_silent) @@ -1109,6 +1172,7 @@ static noinline int print_circular_bug(struct lock_list *this, print_circular_bug_header(target, depth, check_src, check_tgt); parent = get_lock_parent(target); + first_parent = parent; while (parent) { print_circular_bug_entry(parent, --depth); @@ -1116,6 +1180,9 @@ static noinline int print_circular_bug(struct lock_list *this, } printk("\nother info that might help us debug this:\n\n"); + print_circular_lock_scenario(check_src, check_tgt, + first_parent); + lockdep_print_held_locks(curr); printk("\nstack backtrace:\n"); @@ -1314,7 +1381,7 @@ print_shortest_lock_dependencies(struct lock_list *leaf, printk("\n"); if (depth == 0 && (entry != root)) { - printk("lockdep:%s bad BFS generated tree\n", __func__); + printk("lockdep:%s bad path found in chain graph\n", __func__); break; } @@ -1325,6 +1392,62 @@ print_shortest_lock_dependencies(struct lock_list *leaf, return; } +static void +print_irq_lock_scenario(struct lock_list *safe_entry, + struct lock_list *unsafe_entry, + struct lock_class *prev_class, + struct lock_class *next_class) +{ + struct lock_class *safe_class = safe_entry->class; + struct lock_class *unsafe_class = unsafe_entry->class; + struct lock_class *middle_class = prev_class; + + if (middle_class == safe_class) + middle_class = next_class; + + /* + * A direct locking problem where unsafe_class lock is taken + * directly by safe_class lock, then all we need to show + * is the deadlock scenario, as it is obvious that the + * unsafe lock is taken under the safe lock. + * + * But if there is a chain instead, where the safe lock takes + * an intermediate lock (middle_class) where this lock is + * not the same as the safe lock, then the lock chain is + * used to describe the problem. Otherwise we would need + * to show a different CPU case for each link in the chain + * from the safe_class lock to the unsafe_class lock. + */ + if (middle_class != unsafe_class) { + printk("Chain exists of:\n "); + __print_lock_name(safe_class); + printk(" --> "); + __print_lock_name(middle_class); + printk(" --> "); + __print_lock_name(unsafe_class); + printk("\n\n"); + } + + printk(" Possible interrupt unsafe locking scenario:\n\n"); + printk(" CPU0 CPU1\n"); + printk(" ---- ----\n"); + printk(" lock("); + __print_lock_name(unsafe_class); + printk(");\n"); + printk(" local_irq_disable();\n"); + printk(" lock("); + __print_lock_name(safe_class); + printk(");\n"); + printk(" lock("); + __print_lock_name(middle_class); + printk(");\n"); + printk(" <Interrupt>\n"); + printk(" lock("); + __print_lock_name(safe_class); + printk(");\n"); + printk("\n *** DEADLOCK ***\n\n"); +} + static int print_bad_irq_dependency(struct task_struct *curr, struct lock_list *prev_root, @@ -1376,6 +1499,9 @@ print_bad_irq_dependency(struct task_struct *curr, print_stack_trace(forwards_entry->class->usage_traces + bit2, 1); printk("\nother info that might help us debug this:\n\n"); + print_irq_lock_scenario(backwards_entry, forwards_entry, + hlock_class(prev), hlock_class(next)); + lockdep_print_held_locks(curr); printk("\nthe dependencies between %s-irq-safe lock", irqclass); @@ -1539,6 +1665,26 @@ static inline void inc_chains(void) #endif +static void +print_deadlock_scenario(struct held_lock *nxt, + struct held_lock *prv) +{ + struct lock_class *next = hlock_class(nxt); + struct lock_class *prev = hlock_class(prv); + + printk(" Possible unsafe locking scenario:\n\n"); + printk(" CPU0\n"); + printk(" ----\n"); + printk(" lock("); + __print_lock_name(prev); + printk(");\n"); + printk(" lock("); + __print_lock_name(next); + printk(");\n"); + printk("\n *** DEADLOCK ***\n\n"); + printk(" May be due to missing lock nesting notation\n\n"); +} + static int print_deadlock_bug(struct task_struct *curr, struct held_lock *prev, struct held_lock *next) @@ -1557,6 +1703,7 @@ print_deadlock_bug(struct task_struct *curr, struct held_lock *prev, print_lock(prev); printk("\nother info that might help us debug this:\n"); + print_deadlock_scenario(next, prev); lockdep_print_held_locks(curr); printk("\nstack backtrace:\n"); @@ -1826,7 +1973,7 @@ static inline int lookup_chain_cache(struct task_struct *curr, struct list_head *hash_head = chainhashentry(chain_key); struct lock_chain *chain; struct held_lock *hlock_curr, *hlock_next; - int i, j, n, cn; + int i, j; if (DEBUG_LOCKS_WARN_ON(!irqs_disabled())) return 0; @@ -1886,15 +2033,9 @@ cache_hit: } i++; chain->depth = curr->lockdep_depth + 1 - i; - cn = nr_chain_hlocks; - while (cn + chain->depth <= MAX_LOCKDEP_CHAIN_HLOCKS) { - n = cmpxchg(&nr_chain_hlocks, cn, cn + chain->depth); - if (n == cn) - break; - cn = n; - } - if (likely(cn + chain->depth <= MAX_LOCKDEP_CHAIN_HLOCKS)) { - chain->base = cn; + if (likely(nr_chain_hlocks + chain->depth <= MAX_LOCKDEP_CHAIN_HLOCKS)) { + chain->base = nr_chain_hlocks; + nr_chain_hlocks += chain->depth; for (j = 0; j < chain->depth - 1; j++, i++) { int lock_id = curr->held_locks[i].class_idx - 1; chain_hlocks[chain->base + j] = lock_id; @@ -2011,6 +2152,24 @@ static void check_chain_key(struct task_struct *curr) #endif } +static void +print_usage_bug_scenario(struct held_lock *lock) +{ + struct lock_class *class = hlock_class(lock); + + printk(" Possible unsafe locking scenario:\n\n"); + printk(" CPU0\n"); + printk(" ----\n"); + printk(" lock("); + __print_lock_name(class); + printk(");\n"); + printk(" <Interrupt>\n"); + printk(" lock("); + __print_lock_name(class); + printk(");\n"); + printk("\n *** DEADLOCK ***\n\n"); +} + static int print_usage_bug(struct task_struct *curr, struct held_lock *this, enum lock_usage_bit prev_bit, enum lock_usage_bit new_bit) @@ -2039,6 +2198,8 @@ print_usage_bug(struct task_struct *curr, struct held_lock *this, print_irqtrace_events(curr); printk("\nother info that might help us debug this:\n"); + print_usage_bug_scenario(this); + lockdep_print_held_locks(curr); printk("\nstack backtrace:\n"); @@ -2073,6 +2234,10 @@ print_irq_inversion_bug(struct task_struct *curr, struct held_lock *this, int forwards, const char *irqclass) { + struct lock_list *entry = other; + struct lock_list *middle = NULL; + int depth; + if (!debug_locks_off_graph_unlock() || debug_locks_silent) return 0; @@ -2091,6 +2256,25 @@ print_irq_inversion_bug(struct task_struct *curr, printk("\n\nand interrupts could create inverse lock ordering between them.\n\n"); printk("\nother info that might help us debug this:\n"); + + /* Find a middle lock (if one exists) */ + depth = get_lock_depth(other); + do { + if (depth == 0 && (entry != root)) { + printk("lockdep:%s bad path found in chain graph\n", __func__); + break; + } + middle = entry; + entry = get_lock_parent(entry); + depth--; + } while (entry && entry != root && (depth >= 0)); + if (forwards) + print_irq_lock_scenario(root, other, + middle ? middle->class : root->class, other->class); + else + print_irq_lock_scenario(other, root, + middle ? middle->class : other->class, root->class); + lockdep_print_held_locks(curr); printk("\nthe shortest dependencies between 2nd lock and 1st lock:\n"); diff --git a/kernel/module.c b/kernel/module.c index d5938a5c19c..22879725678 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -57,6 +57,7 @@ #include <linux/kmemleak.h> #include <linux/jump_label.h> #include <linux/pfn.h> +#include <linux/bsearch.h> #define CREATE_TRACE_POINTS #include <trace/events/module.h> @@ -240,23 +241,24 @@ static bool each_symbol_in_section(const struct symsearch *arr, struct module *owner, bool (*fn)(const struct symsearch *syms, struct module *owner, - unsigned int symnum, void *data), + void *data), void *data) { - unsigned int i, j; + unsigned int j; for (j = 0; j < arrsize; j++) { - for (i = 0; i < arr[j].stop - arr[j].start; i++) - if (fn(&arr[j], owner, i, data)) - return true; + if (fn(&arr[j], owner, data)) + return true; } return false; } /* Returns true as soon as fn returns true, otherwise false. */ -bool each_symbol(bool (*fn)(const struct symsearch *arr, struct module *owner, - unsigned int symnum, void *data), void *data) +bool each_symbol_section(bool (*fn)(const struct symsearch *arr, + struct module *owner, + void *data), + void *data) { struct module *mod; static const struct symsearch arr[] = { @@ -309,7 +311,7 @@ bool each_symbol(bool (*fn)(const struct symsearch *arr, struct module *owner, } return false; } -EXPORT_SYMBOL_GPL(each_symbol); +EXPORT_SYMBOL_GPL(each_symbol_section); struct find_symbol_arg { /* Input */ @@ -323,15 +325,12 @@ struct find_symbol_arg { const struct kernel_symbol *sym; }; -static bool find_symbol_in_section(const struct symsearch *syms, - struct module *owner, - unsigned int symnum, void *data) +static bool check_symbol(const struct symsearch *syms, + struct module *owner, + unsigned int symnum, void *data) { struct find_symbol_arg *fsa = data; - if (strcmp(syms->start[symnum].name, fsa->name) != 0) - return false; - if (!fsa->gplok) { if (syms->licence == GPL_ONLY) return false; @@ -365,6 +364,30 @@ static bool find_symbol_in_section(const struct symsearch *syms, return true; } +static int cmp_name(const void *va, const void *vb) +{ + const char *a; + const struct kernel_symbol *b; + a = va; b = vb; + return strcmp(a, b->name); +} + +static bool find_symbol_in_section(const struct symsearch *syms, + struct module *owner, + void *data) +{ + struct find_symbol_arg *fsa = data; + struct kernel_symbol *sym; + + sym = bsearch(fsa->name, syms->start, syms->stop - syms->start, + sizeof(struct kernel_symbol), cmp_name); + + if (sym != NULL && check_symbol(syms, owner, sym - syms->start, data)) + return true; + + return false; +} + /* Find a symbol and return it, along with, (optional) crc and * (optional) module which owns it. Needs preempt disabled or module_mutex. */ const struct kernel_symbol *find_symbol(const char *name, @@ -379,7 +402,7 @@ const struct kernel_symbol *find_symbol(const char *name, fsa.gplok = gplok; fsa.warn = warn; - if (each_symbol(find_symbol_in_section, &fsa)) { + if (each_symbol_section(find_symbol_in_section, &fsa)) { if (owner) *owner = fsa.owner; if (crc) @@ -1607,27 +1630,28 @@ static void set_section_ro_nx(void *base, } } -/* Setting memory back to RW+NX before releasing it */ -void unset_section_ro_nx(struct module *mod, void *module_region) +static void unset_module_core_ro_nx(struct module *mod) { - unsigned long total_pages; - - if (mod->module_core == module_region) { - /* Set core as NX+RW */ - total_pages = MOD_NUMBER_OF_PAGES(mod->module_core, mod->core_size); - set_memory_nx((unsigned long)mod->module_core, total_pages); - set_memory_rw((unsigned long)mod->module_core, total_pages); + set_page_attributes(mod->module_core + mod->core_text_size, + mod->module_core + mod->core_size, + set_memory_x); + set_page_attributes(mod->module_core, + mod->module_core + mod->core_ro_size, + set_memory_rw); +} - } else if (mod->module_init == module_region) { - /* Set init as NX+RW */ - total_pages = MOD_NUMBER_OF_PAGES(mod->module_init, mod->init_size); - set_memory_nx((unsigned long)mod->module_init, total_pages); - set_memory_rw((unsigned long)mod->module_init, total_pages); - } +static void unset_module_init_ro_nx(struct module *mod) +{ + set_page_attributes(mod->module_init + mod->init_text_size, + mod->module_init + mod->init_size, + set_memory_x); + set_page_attributes(mod->module_init, + mod->module_init + mod->init_ro_size, + set_memory_rw); } /* Iterate through all modules and set each module's text as RW */ -void set_all_modules_text_rw() +void set_all_modules_text_rw(void) { struct module *mod; @@ -1648,7 +1672,7 @@ void set_all_modules_text_rw() } /* Iterate through all modules and set each module's text as RO */ -void set_all_modules_text_ro() +void set_all_modules_text_ro(void) { struct module *mod; @@ -1669,7 +1693,8 @@ void set_all_modules_text_ro() } #else static inline void set_section_ro_nx(void *base, unsigned long text_size, unsigned long ro_size, unsigned long total_size) { } -static inline void unset_section_ro_nx(struct module *mod, void *module_region) { } +static void unset_module_core_ro_nx(struct module *mod) { } +static void unset_module_init_ro_nx(struct module *mod) { } #endif /* Free a module, remove from lists, etc. */ @@ -1696,7 +1721,7 @@ static void free_module(struct module *mod) destroy_params(mod->kp, mod->num_kp); /* This may be NULL, but that's OK */ - unset_section_ro_nx(mod, mod->module_init); + unset_module_init_ro_nx(mod); module_free(mod, mod->module_init); kfree(mod->args); percpu_modfree(mod); @@ -1705,7 +1730,7 @@ static void free_module(struct module *mod) lockdep_free_key_range(mod->module_core, mod->core_size); /* Finally, free the core (containing the module structure) */ - unset_section_ro_nx(mod, mod->module_core); + unset_module_core_ro_nx(mod); module_free(mod, mod->module_core); #ifdef CONFIG_MPU @@ -2030,11 +2055,8 @@ static const struct kernel_symbol *lookup_symbol(const char *name, const struct kernel_symbol *start, const struct kernel_symbol *stop) { - const struct kernel_symbol *ks = start; - for (; ks < stop; ks++) - if (strcmp(ks->name, name) == 0) - return ks; - return NULL; + return bsearch(name, start, stop - start, + sizeof(struct kernel_symbol), cmp_name); } static int is_exported(const char *name, unsigned long value, @@ -2931,10 +2953,11 @@ SYSCALL_DEFINE3(init_module, void __user *, umod, mod->symtab = mod->core_symtab; mod->strtab = mod->core_strtab; #endif - unset_section_ro_nx(mod, mod->module_init); + unset_module_init_ro_nx(mod); module_free(mod, mod->module_init); mod->module_init = NULL; mod->init_size = 0; + mod->init_ro_size = 0; mod->init_text_size = 0; mutex_unlock(&module_mutex); diff --git a/kernel/mutex-debug.c b/kernel/mutex-debug.c index ec815a960b5..73da83aff41 100644 --- a/kernel/mutex-debug.c +++ b/kernel/mutex-debug.c @@ -75,7 +75,7 @@ void debug_mutex_unlock(struct mutex *lock) return; DEBUG_LOCKS_WARN_ON(lock->magic != lock); - DEBUG_LOCKS_WARN_ON(lock->owner != current_thread_info()); + DEBUG_LOCKS_WARN_ON(lock->owner != current); DEBUG_LOCKS_WARN_ON(!lock->wait_list.prev && !lock->wait_list.next); mutex_clear_owner(lock); } diff --git a/kernel/mutex-debug.h b/kernel/mutex-debug.h index 57d527a16f9..0799fd3e4cf 100644 --- a/kernel/mutex-debug.h +++ b/kernel/mutex-debug.h @@ -29,7 +29,7 @@ extern void debug_mutex_init(struct mutex *lock, const char *name, static inline void mutex_set_owner(struct mutex *lock) { - lock->owner = current_thread_info(); + lock->owner = current; } static inline void mutex_clear_owner(struct mutex *lock) diff --git a/kernel/mutex.c b/kernel/mutex.c index c4195fa9890..2c938e2337c 100644 --- a/kernel/mutex.c +++ b/kernel/mutex.c @@ -160,14 +160,7 @@ __mutex_lock_common(struct mutex *lock, long state, unsigned int subclass, */ for (;;) { - struct thread_info *owner; - - /* - * If we own the BKL, then don't spin. The owner of - * the mutex might be waiting on us to release the BKL. - */ - if (unlikely(current->lock_depth >= 0)) - break; + struct task_struct *owner; /* * If there's an owner, wait for it to either diff --git a/kernel/mutex.h b/kernel/mutex.h index 67578ca48f9..4115fbf83b1 100644 --- a/kernel/mutex.h +++ b/kernel/mutex.h @@ -19,7 +19,7 @@ #ifdef CONFIG_SMP static inline void mutex_set_owner(struct mutex *lock) { - lock->owner = current_thread_info(); + lock->owner = current; } static inline void mutex_clear_owner(struct mutex *lock) diff --git a/kernel/params.c b/kernel/params.c index 7ab388a48a2..ed72e133086 100644 --- a/kernel/params.c +++ b/kernel/params.c @@ -297,21 +297,15 @@ EXPORT_SYMBOL(param_ops_charp); int param_set_bool(const char *val, const struct kernel_param *kp) { bool v; + int ret; /* No equals means "set"... */ if (!val) val = "1"; /* One of =[yYnN01] */ - switch (val[0]) { - case 'y': case 'Y': case '1': - v = true; - break; - case 'n': case 'N': case '0': - v = false; - break; - default: - return -EINVAL; - } + ret = strtobool(val, &v); + if (ret) + return ret; if (kp->flags & KPARAM_ISBOOL) *(bool *)kp->arg = v; @@ -821,15 +815,18 @@ ssize_t __modver_version_show(struct module_attribute *mattr, return sprintf(buf, "%s\n", vattr->version); } -extern struct module_version_attribute __start___modver[], __stop___modver[]; +extern const struct module_version_attribute *__start___modver[]; +extern const struct module_version_attribute *__stop___modver[]; static void __init version_sysfs_builtin(void) { - const struct module_version_attribute *vattr; + const struct module_version_attribute **p; struct module_kobject *mk; int err; - for (vattr = __start___modver; vattr < __stop___modver; vattr++) { + for (p = __start___modver; p < __stop___modver; p++) { + const struct module_version_attribute *vattr = *p; + mk = locate_module_kobject(vattr->module_name); if (mk) { err = sysfs_create_file(&mk->kobj, &vattr->mattr.attr); diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig index 6de9a8fc341..87f4d24b55b 100644 --- a/kernel/power/Kconfig +++ b/kernel/power/Kconfig @@ -125,12 +125,6 @@ config PM_DEBUG code. This is helpful when debugging and reporting PM bugs, like suspend support. -config PM_VERBOSE - bool "Verbose Power Management debugging" - depends on PM_DEBUG - ---help--- - This option enables verbose messages from the Power Management code. - config PM_ADVANCED_DEBUG bool "Extra PM attributes in sysfs for low-level debugging/testing" depends on PM_DEBUG @@ -229,3 +223,7 @@ config PM_OPP representing individual voltage domains and provides SOC implementations a ready to use framework to manage OPPs. For more information, read <file:Documentation/power/opp.txt> + +config PM_RUNTIME_CLK + def_bool y + depends on PM_RUNTIME && HAVE_CLK diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c index 50aae660174..f9bec56d882 100644 --- a/kernel/power/hibernate.c +++ b/kernel/power/hibernate.c @@ -272,12 +272,7 @@ static int create_image(int platform_mode) local_irq_disable(); - error = sysdev_suspend(PMSG_FREEZE); - if (!error) { - error = syscore_suspend(); - if (error) - sysdev_resume(); - } + error = syscore_suspend(); if (error) { printk(KERN_ERR "PM: Some system devices failed to power down, " "aborting hibernation\n"); @@ -302,7 +297,6 @@ static int create_image(int platform_mode) Power_up: syscore_resume(); - sysdev_resume(); /* NOTE: dpm_resume_noirq() is just a resume() for devices * that suspended with irqs off ... no overall powerup. */ @@ -333,20 +327,25 @@ static int create_image(int platform_mode) int hibernation_snapshot(int platform_mode) { + pm_message_t msg = PMSG_RECOVER; int error; error = platform_begin(platform_mode); if (error) goto Close; + error = dpm_prepare(PMSG_FREEZE); + if (error) + goto Complete_devices; + /* Preallocate image memory before shutting down devices. */ error = hibernate_preallocate_memory(); if (error) - goto Close; + goto Complete_devices; suspend_console(); pm_restrict_gfp_mask(); - error = dpm_suspend_start(PMSG_FREEZE); + error = dpm_suspend(PMSG_FREEZE); if (error) goto Recover_platform; @@ -364,13 +363,17 @@ int hibernation_snapshot(int platform_mode) if (error || !in_suspend) swsusp_free(); - dpm_resume_end(in_suspend ? - (error ? PMSG_RECOVER : PMSG_THAW) : PMSG_RESTORE); + msg = in_suspend ? (error ? PMSG_RECOVER : PMSG_THAW) : PMSG_RESTORE; + dpm_resume(msg); if (error || !in_suspend) pm_restore_gfp_mask(); resume_console(); + + Complete_devices: + dpm_complete(msg); + Close: platform_end(platform_mode); return error; @@ -409,12 +412,7 @@ static int resume_target_kernel(bool platform_mode) local_irq_disable(); - error = sysdev_suspend(PMSG_QUIESCE); - if (!error) { - error = syscore_suspend(); - if (error) - sysdev_resume(); - } + error = syscore_suspend(); if (error) goto Enable_irqs; @@ -442,7 +440,6 @@ static int resume_target_kernel(bool platform_mode) touch_softlockup_watchdog(); syscore_resume(); - sysdev_resume(); Enable_irqs: local_irq_enable(); @@ -528,7 +525,6 @@ int hibernation_platform_enter(void) goto Platform_finish; local_irq_disable(); - sysdev_suspend(PMSG_HIBERNATE); syscore_suspend(); if (pm_wakeup_pending()) { error = -EAGAIN; @@ -541,7 +537,6 @@ int hibernation_platform_enter(void) Power_up: syscore_resume(); - sysdev_resume(); local_irq_enable(); enable_nonboot_cpus(); @@ -982,10 +977,33 @@ static ssize_t image_size_store(struct kobject *kobj, struct kobj_attribute *att power_attr(image_size); +static ssize_t reserved_size_show(struct kobject *kobj, + struct kobj_attribute *attr, char *buf) +{ + return sprintf(buf, "%lu\n", reserved_size); +} + +static ssize_t reserved_size_store(struct kobject *kobj, + struct kobj_attribute *attr, + const char *buf, size_t n) +{ + unsigned long size; + + if (sscanf(buf, "%lu", &size) == 1) { + reserved_size = size; + return n; + } + + return -EINVAL; +} + +power_attr(reserved_size); + static struct attribute * g[] = { &disk_attr.attr, &resume_attr.attr, &image_size_attr.attr, + &reserved_size_attr.attr, NULL, }; diff --git a/kernel/power/main.c b/kernel/power/main.c index de9aef8742f..2981af4ce7c 100644 --- a/kernel/power/main.c +++ b/kernel/power/main.c @@ -337,6 +337,7 @@ static int __init pm_init(void) if (error) return error; hibernate_image_size_init(); + hibernate_reserved_size_init(); power_kobj = kobject_create_and_add("power", NULL); if (!power_kobj) return -ENOMEM; diff --git a/kernel/power/power.h b/kernel/power/power.h index 03634be55f6..9a00a0a2628 100644 --- a/kernel/power/power.h +++ b/kernel/power/power.h @@ -15,6 +15,7 @@ struct swsusp_info { #ifdef CONFIG_HIBERNATION /* kernel/power/snapshot.c */ +extern void __init hibernate_reserved_size_init(void); extern void __init hibernate_image_size_init(void); #ifdef CONFIG_ARCH_HIBERNATION_HEADER @@ -55,6 +56,7 @@ extern int hibernation_platform_enter(void); #else /* !CONFIG_HIBERNATION */ +static inline void hibernate_reserved_size_init(void) {} static inline void hibernate_image_size_init(void) {} #endif /* !CONFIG_HIBERNATION */ @@ -72,6 +74,8 @@ static struct kobj_attribute _name##_attr = { \ /* Preferred image size in bytes (default 500 MB) */ extern unsigned long image_size; +/* Size of memory reserved for drivers (default SPARE_PAGES x PAGE_SIZE) */ +extern unsigned long reserved_size; extern int in_suspend; extern dev_t swsusp_resume_device; extern sector_t swsusp_resume_block; diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c index ca0aacc2487..ace55889f70 100644 --- a/kernel/power/snapshot.c +++ b/kernel/power/snapshot.c @@ -41,16 +41,28 @@ static void swsusp_set_page_forbidden(struct page *); static void swsusp_unset_page_forbidden(struct page *); /* + * Number of bytes to reserve for memory allocations made by device drivers + * from their ->freeze() and ->freeze_noirq() callbacks so that they don't + * cause image creation to fail (tunable via /sys/power/reserved_size). + */ +unsigned long reserved_size; + +void __init hibernate_reserved_size_init(void) +{ + reserved_size = SPARE_PAGES * PAGE_SIZE; +} + +/* * Preferred image size in bytes (tunable via /sys/power/image_size). - * When it is set to N, the image creating code will do its best to - * ensure the image size will not exceed N bytes, but if that is - * impossible, it will try to create the smallest image possible. + * When it is set to N, swsusp will do its best to ensure the image + * size will not exceed N bytes, but if that is impossible, it will + * try to create the smallest image possible. */ unsigned long image_size; void __init hibernate_image_size_init(void) { - image_size = (totalram_pages / 3) * PAGE_SIZE; + image_size = ((totalram_pages * 2) / 5) * PAGE_SIZE; } /* List of PBEs needed for restoring the pages that were allocated before @@ -1263,11 +1275,13 @@ static unsigned long minimum_image_size(unsigned long saveable) * frame in use. We also need a number of page frames to be free during * hibernation for allocations made while saving the image and for device * drivers, in case they need to allocate memory from their hibernation - * callbacks (these two numbers are given by PAGES_FOR_IO and SPARE_PAGES, - * respectively, both of which are rough estimates). To make this happen, we - * compute the total number of available page frames and allocate at least + * callbacks (these two numbers are given by PAGES_FOR_IO (which is a rough + * estimate) and reserverd_size divided by PAGE_SIZE (which is tunable through + * /sys/power/reserved_size, respectively). To make this happen, we compute the + * total number of available page frames and allocate at least * - * ([page frames total] + PAGES_FOR_IO + [metadata pages]) / 2 + 2 * SPARE_PAGES + * ([page frames total] + PAGES_FOR_IO + [metadata pages]) / 2 + * + 2 * DIV_ROUND_UP(reserved_size, PAGE_SIZE) * * of them, which corresponds to the maximum size of a hibernation image. * @@ -1322,7 +1336,8 @@ int hibernate_preallocate_memory(void) count -= totalreserve_pages; /* Compute the maximum number of saveable pages to leave in memory. */ - max_size = (count - (size + PAGES_FOR_IO)) / 2 - 2 * SPARE_PAGES; + max_size = (count - (size + PAGES_FOR_IO)) / 2 + - 2 * DIV_ROUND_UP(reserved_size, PAGE_SIZE); /* Compute the desired number of image pages specified by image_size. */ size = DIV_ROUND_UP(image_size, PAGE_SIZE); if (size > max_size) diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c index 8935369d503..1c41ba21541 100644 --- a/kernel/power/suspend.c +++ b/kernel/power/suspend.c @@ -163,19 +163,13 @@ static int suspend_enter(suspend_state_t state) arch_suspend_disable_irqs(); BUG_ON(!irqs_disabled()); - error = sysdev_suspend(PMSG_SUSPEND); - if (!error) { - error = syscore_suspend(); - if (error) - sysdev_resume(); - } + error = syscore_suspend(); if (!error) { if (!(suspend_test(TEST_CORE) || pm_wakeup_pending())) { error = suspend_ops->enter(state); events_check_enabled = false; } syscore_resume(); - sysdev_resume(); } arch_suspend_enable_irqs(); @@ -216,7 +210,6 @@ int suspend_devices_and_enter(suspend_state_t state) goto Close; } suspend_console(); - pm_restrict_gfp_mask(); suspend_test_start(); error = dpm_suspend_start(PMSG_SUSPEND); if (error) { @@ -227,13 +220,12 @@ int suspend_devices_and_enter(suspend_state_t state) if (suspend_test(TEST_DEVICES)) goto Recover_platform; - suspend_enter(state); + error = suspend_enter(state); Resume_devices: suspend_test_start(); dpm_resume_end(PMSG_RESUME); suspend_test_finish("resume devices"); - pm_restore_gfp_mask(); resume_console(); Close: if (suspend_ops->end) @@ -294,7 +286,9 @@ int enter_state(suspend_state_t state) goto Finish; pr_debug("PM: Entering %s sleep\n", pm_states[state]); + pm_restrict_gfp_mask(); error = suspend_devices_and_enter(state); + pm_restore_gfp_mask(); Finish: pr_debug("PM: Finishing wakeup.\n"); diff --git a/kernel/power/user.c b/kernel/power/user.c index c36c3b9e8a8..7d02d33be69 100644 --- a/kernel/power/user.c +++ b/kernel/power/user.c @@ -135,8 +135,10 @@ static int snapshot_release(struct inode *inode, struct file *filp) free_basic_memory_bitmaps(); data = filp->private_data; free_all_swap_pages(data->swap); - if (data->frozen) + if (data->frozen) { + pm_restore_gfp_mask(); thaw_processes(); + } pm_notifier_call_chain(data->mode == O_RDONLY ? PM_POST_HIBERNATION : PM_POST_RESTORE); atomic_inc(&snapshot_device_available); @@ -379,6 +381,7 @@ static long snapshot_ioctl(struct file *filp, unsigned int cmd, * PM_HIBERNATION_PREPARE */ error = suspend_devices_and_enter(PM_SUSPEND_MEM); + data->ready = 0; break; case SNAPSHOT_PLATFORM_SUPPORT: diff --git a/kernel/ptrace.c b/kernel/ptrace.c index 0fc1eed28d2..dc7ab65f3b3 100644 --- a/kernel/ptrace.c +++ b/kernel/ptrace.c @@ -22,6 +22,7 @@ #include <linux/syscalls.h> #include <linux/uaccess.h> #include <linux/regset.h> +#include <linux/hw_breakpoint.h> /* @@ -879,3 +880,19 @@ asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid, return ret; } #endif /* CONFIG_COMPAT */ + +#ifdef CONFIG_HAVE_HW_BREAKPOINT +int ptrace_get_breakpoints(struct task_struct *tsk) +{ + if (atomic_inc_not_zero(&tsk->ptrace_bp_refcnt)) + return 0; + + return -1; +} + +void ptrace_put_breakpoints(struct task_struct *tsk) +{ + if (atomic_dec_and_test(&tsk->ptrace_bp_refcnt)) + flush_ptrace_hw_breakpoint(tsk); +} +#endif /* CONFIG_HAVE_HW_BREAKPOINT */ diff --git a/kernel/sched.c b/kernel/sched.c index 312f8b95c2d..c62acf45d3b 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -231,7 +231,7 @@ static void destroy_rt_bandwidth(struct rt_bandwidth *rt_b) #endif /* - * sched_domains_mutex serializes calls to arch_init_sched_domains, + * sched_domains_mutex serializes calls to init_sched_domains, * detach_destroy_domains and partition_sched_domains. */ static DEFINE_MUTEX(sched_domains_mutex); @@ -312,6 +312,9 @@ struct cfs_rq { u64 exec_clock; u64 min_vruntime; +#ifndef CONFIG_64BIT + u64 min_vruntime_copy; +#endif struct rb_root tasks_timeline; struct rb_node *rb_leftmost; @@ -325,7 +328,9 @@ struct cfs_rq { */ struct sched_entity *curr, *next, *last, *skip; +#ifdef CONFIG_SCHED_DEBUG unsigned int nr_spread_over; +#endif #ifdef CONFIG_FAIR_GROUP_SCHED struct rq *rq; /* cpu runqueue to which this cfs_rq is attached */ @@ -417,6 +422,7 @@ struct rt_rq { */ struct root_domain { atomic_t refcount; + struct rcu_head rcu; cpumask_var_t span; cpumask_var_t online; @@ -460,7 +466,7 @@ struct rq { u64 nohz_stamp; unsigned char nohz_balance_kick; #endif - unsigned int skip_clock_update; + int skip_clock_update; /* capture load from *all* tasks on this cpu: */ struct load_weight load; @@ -553,6 +559,10 @@ struct rq { unsigned int ttwu_count; unsigned int ttwu_local; #endif + +#ifdef CONFIG_SMP + struct task_struct *wake_list; +#endif }; static DEFINE_PER_CPU_SHARED_ALIGNED(struct rq, runqueues); @@ -571,7 +581,7 @@ static inline int cpu_of(struct rq *rq) #define rcu_dereference_check_sched_domain(p) \ rcu_dereference_check((p), \ - rcu_read_lock_sched_held() || \ + rcu_read_lock_held() || \ lockdep_is_held(&sched_domains_mutex)) /* @@ -596,7 +606,7 @@ static inline int cpu_of(struct rq *rq) * Return the group to which this tasks belongs. * * We use task_subsys_state_check() and extend the RCU verification - * with lockdep_is_held(&task_rq(p)->lock) because cpu_cgroup_attach() + * with lockdep_is_held(&p->pi_lock) because cpu_cgroup_attach() * holds that lock for each task it moves into the cgroup. Therefore * by holding that lock, we pin the task to the current cgroup. */ @@ -606,7 +616,7 @@ static inline struct task_group *task_group(struct task_struct *p) struct cgroup_subsys_state *css; css = task_subsys_state_check(p, cpu_cgroup_subsys_id, - lockdep_is_held(&task_rq(p)->lock)); + lockdep_is_held(&p->pi_lock)); tg = container_of(css, struct task_group, css); return autogroup_task_group(p, tg); @@ -642,7 +652,7 @@ static void update_rq_clock(struct rq *rq) { s64 delta; - if (rq->skip_clock_update) + if (rq->skip_clock_update > 0) return; delta = sched_clock_cpu(cpu_of(rq)) - rq->clock; @@ -838,18 +848,39 @@ static inline int task_current(struct rq *rq, struct task_struct *p) return rq->curr == p; } -#ifndef __ARCH_WANT_UNLOCKED_CTXSW static inline int task_running(struct rq *rq, struct task_struct *p) { +#ifdef CONFIG_SMP + return p->on_cpu; +#else return task_current(rq, p); +#endif } +#ifndef __ARCH_WANT_UNLOCKED_CTXSW static inline void prepare_lock_switch(struct rq *rq, struct task_struct *next) { +#ifdef CONFIG_SMP + /* + * We can optimise this out completely for !SMP, because the + * SMP rebalancing from interrupt is the only thing that cares + * here. + */ + next->on_cpu = 1; +#endif } static inline void finish_lock_switch(struct rq *rq, struct task_struct *prev) { +#ifdef CONFIG_SMP + /* + * After ->on_cpu is cleared, the task can be moved to a different CPU. + * We must ensure this doesn't happen until the switch is completely + * finished. + */ + smp_wmb(); + prev->on_cpu = 0; +#endif #ifdef CONFIG_DEBUG_SPINLOCK /* this is a valid case when another task releases the spinlock */ rq->lock.owner = current; @@ -865,15 +896,6 @@ static inline void finish_lock_switch(struct rq *rq, struct task_struct *prev) } #else /* __ARCH_WANT_UNLOCKED_CTXSW */ -static inline int task_running(struct rq *rq, struct task_struct *p) -{ -#ifdef CONFIG_SMP - return p->oncpu; -#else - return task_current(rq, p); -#endif -} - static inline void prepare_lock_switch(struct rq *rq, struct task_struct *next) { #ifdef CONFIG_SMP @@ -882,7 +904,7 @@ static inline void prepare_lock_switch(struct rq *rq, struct task_struct *next) * SMP rebalancing from interrupt is the only thing that cares * here. */ - next->oncpu = 1; + next->on_cpu = 1; #endif #ifdef __ARCH_WANT_INTERRUPTS_ON_CTXSW raw_spin_unlock_irq(&rq->lock); @@ -895,12 +917,12 @@ static inline void finish_lock_switch(struct rq *rq, struct task_struct *prev) { #ifdef CONFIG_SMP /* - * After ->oncpu is cleared, the task can be moved to a different CPU. + * After ->on_cpu is cleared, the task can be moved to a different CPU. * We must ensure this doesn't happen until the switch is completely * finished. */ smp_wmb(); - prev->oncpu = 0; + prev->on_cpu = 0; #endif #ifndef __ARCH_WANT_INTERRUPTS_ON_CTXSW local_irq_enable(); @@ -909,23 +931,15 @@ static inline void finish_lock_switch(struct rq *rq, struct task_struct *prev) #endif /* __ARCH_WANT_UNLOCKED_CTXSW */ /* - * Check whether the task is waking, we use this to synchronize ->cpus_allowed - * against ttwu(). - */ -static inline int task_is_waking(struct task_struct *p) -{ - return unlikely(p->state == TASK_WAKING); -} - -/* - * __task_rq_lock - lock the runqueue a given task resides on. - * Must be called interrupts disabled. + * __task_rq_lock - lock the rq @p resides on. */ static inline struct rq *__task_rq_lock(struct task_struct *p) __acquires(rq->lock) { struct rq *rq; + lockdep_assert_held(&p->pi_lock); + for (;;) { rq = task_rq(p); raw_spin_lock(&rq->lock); @@ -936,22 +950,22 @@ static inline struct rq *__task_rq_lock(struct task_struct *p) } /* - * task_rq_lock - lock the runqueue a given task resides on and disable - * interrupts. Note the ordering: we can safely lookup the task_rq without - * explicitly disabling preemption. + * task_rq_lock - lock p->pi_lock and lock the rq @p resides on. */ static struct rq *task_rq_lock(struct task_struct *p, unsigned long *flags) + __acquires(p->pi_lock) __acquires(rq->lock) { struct rq *rq; for (;;) { - local_irq_save(*flags); + raw_spin_lock_irqsave(&p->pi_lock, *flags); rq = task_rq(p); raw_spin_lock(&rq->lock); if (likely(rq == task_rq(p))) return rq; - raw_spin_unlock_irqrestore(&rq->lock, *flags); + raw_spin_unlock(&rq->lock); + raw_spin_unlock_irqrestore(&p->pi_lock, *flags); } } @@ -961,10 +975,13 @@ static void __task_rq_unlock(struct rq *rq) raw_spin_unlock(&rq->lock); } -static inline void task_rq_unlock(struct rq *rq, unsigned long *flags) +static inline void +task_rq_unlock(struct rq *rq, struct task_struct *p, unsigned long *flags) __releases(rq->lock) + __releases(p->pi_lock) { - raw_spin_unlock_irqrestore(&rq->lock, *flags); + raw_spin_unlock(&rq->lock); + raw_spin_unlock_irqrestore(&p->pi_lock, *flags); } /* @@ -1193,11 +1210,17 @@ int get_nohz_timer_target(void) int i; struct sched_domain *sd; + rcu_read_lock(); for_each_domain(cpu, sd) { - for_each_cpu(i, sched_domain_span(sd)) - if (!idle_cpu(i)) - return i; + for_each_cpu(i, sched_domain_span(sd)) { + if (!idle_cpu(i)) { + cpu = i; + goto unlock; + } + } } +unlock: + rcu_read_unlock(); return cpu; } /* @@ -1307,15 +1330,15 @@ calc_delta_mine(unsigned long delta_exec, unsigned long weight, { u64 tmp; + tmp = (u64)delta_exec * weight; + if (!lw->inv_weight) { if (BITS_PER_LONG > 32 && unlikely(lw->weight >= WMULT_CONST)) lw->inv_weight = 1; else - lw->inv_weight = 1 + (WMULT_CONST-lw->weight/2) - / (lw->weight+1); + lw->inv_weight = WMULT_CONST / lw->weight; } - tmp = (u64)delta_exec * weight; /* * Check whether we'd overflow the 64-bit multiplication: */ @@ -1773,7 +1796,6 @@ static void enqueue_task(struct rq *rq, struct task_struct *p, int flags) update_rq_clock(rq); sched_info_queued(p); p->sched_class->enqueue_task(rq, p, flags); - p->se.on_rq = 1; } static void dequeue_task(struct rq *rq, struct task_struct *p, int flags) @@ -1781,7 +1803,6 @@ static void dequeue_task(struct rq *rq, struct task_struct *p, int flags) update_rq_clock(rq); sched_info_dequeued(p); p->sched_class->dequeue_task(rq, p, flags); - p->se.on_rq = 0; } /* @@ -2116,7 +2137,7 @@ static void check_preempt_curr(struct rq *rq, struct task_struct *p, int flags) * A queue event has occurred, and we're going to schedule. In * this case, we can save a useless back to back clock update. */ - if (rq->curr->se.on_rq && test_tsk_need_resched(rq->curr)) + if (rq->curr->on_rq && test_tsk_need_resched(rq->curr)) rq->skip_clock_update = 1; } @@ -2162,6 +2183,11 @@ void set_task_cpu(struct task_struct *p, unsigned int new_cpu) */ WARN_ON_ONCE(p->state != TASK_RUNNING && p->state != TASK_WAKING && !(task_thread_info(p)->preempt_count & PREEMPT_ACTIVE)); + +#ifdef CONFIG_LOCKDEP + WARN_ON_ONCE(debug_locks && !(lockdep_is_held(&p->pi_lock) || + lockdep_is_held(&task_rq(p)->lock))); +#endif #endif trace_sched_migrate_task(p, new_cpu); @@ -2182,19 +2208,6 @@ struct migration_arg { static int migration_cpu_stop(void *data); /* - * The task's runqueue lock must be held. - * Returns true if you have to wait for migration thread. - */ -static bool migrate_task(struct task_struct *p, struct rq *rq) -{ - /* - * If the task is not on a runqueue (and not running), then - * the next wake-up will properly place the task. - */ - return p->se.on_rq || task_running(rq, p); -} - -/* * wait_task_inactive - wait for a thread to unschedule. * * If @match_state is nonzero, it's the @p->state value just checked and @@ -2251,11 +2264,11 @@ unsigned long wait_task_inactive(struct task_struct *p, long match_state) rq = task_rq_lock(p, &flags); trace_sched_wait_task(p); running = task_running(rq, p); - on_rq = p->se.on_rq; + on_rq = p->on_rq; ncsw = 0; if (!match_state || p->state == match_state) ncsw = p->nvcsw | LONG_MIN; /* sets MSB */ - task_rq_unlock(rq, &flags); + task_rq_unlock(rq, p, &flags); /* * If it changed from the expected state, bail out now. @@ -2330,7 +2343,7 @@ EXPORT_SYMBOL_GPL(kick_process); #ifdef CONFIG_SMP /* - * ->cpus_allowed is protected by either TASK_WAKING or rq->lock held. + * ->cpus_allowed is protected by both rq->lock and p->pi_lock */ static int select_fallback_rq(int cpu, struct task_struct *p) { @@ -2363,12 +2376,12 @@ static int select_fallback_rq(int cpu, struct task_struct *p) } /* - * The caller (fork, wakeup) owns TASK_WAKING, ->cpus_allowed is stable. + * The caller (fork, wakeup) owns p->pi_lock, ->cpus_allowed is stable. */ static inline -int select_task_rq(struct rq *rq, struct task_struct *p, int sd_flags, int wake_flags) +int select_task_rq(struct task_struct *p, int sd_flags, int wake_flags) { - int cpu = p->sched_class->select_task_rq(rq, p, sd_flags, wake_flags); + int cpu = p->sched_class->select_task_rq(p, sd_flags, wake_flags); /* * In order not to call set_task_cpu() on a blocking task we need @@ -2394,27 +2407,62 @@ static void update_avg(u64 *avg, u64 sample) } #endif -static inline void ttwu_activate(struct task_struct *p, struct rq *rq, - bool is_sync, bool is_migrate, bool is_local, - unsigned long en_flags) +static void +ttwu_stat(struct task_struct *p, int cpu, int wake_flags) { +#ifdef CONFIG_SCHEDSTATS + struct rq *rq = this_rq(); + +#ifdef CONFIG_SMP + int this_cpu = smp_processor_id(); + + if (cpu == this_cpu) { + schedstat_inc(rq, ttwu_local); + schedstat_inc(p, se.statistics.nr_wakeups_local); + } else { + struct sched_domain *sd; + + schedstat_inc(p, se.statistics.nr_wakeups_remote); + rcu_read_lock(); + for_each_domain(this_cpu, sd) { + if (cpumask_test_cpu(cpu, sched_domain_span(sd))) { + schedstat_inc(sd, ttwu_wake_remote); + break; + } + } + rcu_read_unlock(); + } +#endif /* CONFIG_SMP */ + + schedstat_inc(rq, ttwu_count); schedstat_inc(p, se.statistics.nr_wakeups); - if (is_sync) + + if (wake_flags & WF_SYNC) schedstat_inc(p, se.statistics.nr_wakeups_sync); - if (is_migrate) + + if (cpu != task_cpu(p)) schedstat_inc(p, se.statistics.nr_wakeups_migrate); - if (is_local) - schedstat_inc(p, se.statistics.nr_wakeups_local); - else - schedstat_inc(p, se.statistics.nr_wakeups_remote); +#endif /* CONFIG_SCHEDSTATS */ +} + +static void ttwu_activate(struct rq *rq, struct task_struct *p, int en_flags) +{ activate_task(rq, p, en_flags); + p->on_rq = 1; + + /* if a worker is waking up, notify workqueue */ + if (p->flags & PF_WQ_WORKER) + wq_worker_waking_up(p, cpu_of(rq)); } -static inline void ttwu_post_activation(struct task_struct *p, struct rq *rq, - int wake_flags, bool success) +/* + * Mark the task runnable and perform wakeup-preemption. + */ +static void +ttwu_do_wakeup(struct rq *rq, struct task_struct *p, int wake_flags) { - trace_sched_wakeup(p, success); + trace_sched_wakeup(p, true); check_preempt_curr(rq, p, wake_flags); p->state = TASK_RUNNING; @@ -2433,9 +2481,99 @@ static inline void ttwu_post_activation(struct task_struct *p, struct rq *rq, rq->idle_stamp = 0; } #endif - /* if a worker is waking up, notify workqueue */ - if ((p->flags & PF_WQ_WORKER) && success) - wq_worker_waking_up(p, cpu_of(rq)); +} + +static void +ttwu_do_activate(struct rq *rq, struct task_struct *p, int wake_flags) +{ +#ifdef CONFIG_SMP + if (p->sched_contributes_to_load) + rq->nr_uninterruptible--; +#endif + + ttwu_activate(rq, p, ENQUEUE_WAKEUP | ENQUEUE_WAKING); + ttwu_do_wakeup(rq, p, wake_flags); +} + +/* + * Called in case the task @p isn't fully descheduled from its runqueue, + * in this case we must do a remote wakeup. Its a 'light' wakeup though, + * since all we need to do is flip p->state to TASK_RUNNING, since + * the task is still ->on_rq. + */ +static int ttwu_remote(struct task_struct *p, int wake_flags) +{ + struct rq *rq; + int ret = 0; + + rq = __task_rq_lock(p); + if (p->on_rq) { + ttwu_do_wakeup(rq, p, wake_flags); + ret = 1; + } + __task_rq_unlock(rq); + + return ret; +} + +#ifdef CONFIG_SMP +static void sched_ttwu_pending(void) +{ + struct rq *rq = this_rq(); + struct task_struct *list = xchg(&rq->wake_list, NULL); + + if (!list) + return; + + raw_spin_lock(&rq->lock); + + while (list) { + struct task_struct *p = list; + list = list->wake_entry; + ttwu_do_activate(rq, p, 0); + } + + raw_spin_unlock(&rq->lock); +} + +void scheduler_ipi(void) +{ + sched_ttwu_pending(); +} + +static void ttwu_queue_remote(struct task_struct *p, int cpu) +{ + struct rq *rq = cpu_rq(cpu); + struct task_struct *next = rq->wake_list; + + for (;;) { + struct task_struct *old = next; + + p->wake_entry = next; + next = cmpxchg(&rq->wake_list, old, p); + if (next == old) + break; + } + + if (!next) + smp_send_reschedule(cpu); +} +#endif + +static void ttwu_queue(struct task_struct *p, int cpu) +{ + struct rq *rq = cpu_rq(cpu); + +#if defined(CONFIG_SMP) && defined(CONFIG_SCHED_TTWU_QUEUE) + if (sched_feat(TTWU_QUEUE) && cpu != smp_processor_id()) { + ttwu_queue_remote(p, cpu); + return; + } +#endif + + raw_spin_lock(&rq->lock); + ttwu_do_activate(rq, p, 0); + raw_spin_unlock(&rq->lock); } /** @@ -2453,92 +2591,64 @@ static inline void ttwu_post_activation(struct task_struct *p, struct rq *rq, * Returns %true if @p was woken up, %false if it was already running * or @state didn't match @p's state. */ -static int try_to_wake_up(struct task_struct *p, unsigned int state, - int wake_flags) +static int +try_to_wake_up(struct task_struct *p, unsigned int state, int wake_flags) { - int cpu, orig_cpu, this_cpu, success = 0; unsigned long flags; - unsigned long en_flags = ENQUEUE_WAKEUP; - struct rq *rq; - - this_cpu = get_cpu(); + int cpu, success = 0; smp_wmb(); - rq = task_rq_lock(p, &flags); + raw_spin_lock_irqsave(&p->pi_lock, flags); if (!(p->state & state)) goto out; - if (p->se.on_rq) - goto out_running; - + success = 1; /* we're going to change ->state */ cpu = task_cpu(p); - orig_cpu = cpu; -#ifdef CONFIG_SMP - if (unlikely(task_running(rq, p))) - goto out_activate; + if (p->on_rq && ttwu_remote(p, wake_flags)) + goto stat; +#ifdef CONFIG_SMP /* - * In order to handle concurrent wakeups and release the rq->lock - * we put the task in TASK_WAKING state. - * - * First fix up the nr_uninterruptible count: + * If the owning (remote) cpu is still in the middle of schedule() with + * this task as prev, wait until its done referencing the task. */ - if (task_contributes_to_load(p)) { - if (likely(cpu_online(orig_cpu))) - rq->nr_uninterruptible--; - else - this_rq()->nr_uninterruptible--; - } - p->state = TASK_WAKING; - - if (p->sched_class->task_waking) { - p->sched_class->task_waking(rq, p); - en_flags |= ENQUEUE_WAKING; + while (p->on_cpu) { +#ifdef __ARCH_WANT_INTERRUPTS_ON_CTXSW + /* + * If called from interrupt context we could have landed in the + * middle of schedule(), in this case we should take care not + * to spin on ->on_cpu if p is current, since that would + * deadlock. + */ + if (p == current) { + ttwu_queue(p, cpu); + goto stat; + } +#endif + cpu_relax(); } - - cpu = select_task_rq(rq, p, SD_BALANCE_WAKE, wake_flags); - if (cpu != orig_cpu) - set_task_cpu(p, cpu); - __task_rq_unlock(rq); - - rq = cpu_rq(cpu); - raw_spin_lock(&rq->lock); - /* - * We migrated the task without holding either rq->lock, however - * since the task is not on the task list itself, nobody else - * will try and migrate the task, hence the rq should match the - * cpu we just moved it to. + * Pairs with the smp_wmb() in finish_lock_switch(). */ - WARN_ON(task_cpu(p) != cpu); - WARN_ON(p->state != TASK_WAKING); + smp_rmb(); -#ifdef CONFIG_SCHEDSTATS - schedstat_inc(rq, ttwu_count); - if (cpu == this_cpu) - schedstat_inc(rq, ttwu_local); - else { - struct sched_domain *sd; - for_each_domain(this_cpu, sd) { - if (cpumask_test_cpu(cpu, sched_domain_span(sd))) { - schedstat_inc(sd, ttwu_wake_remote); - break; - } - } - } -#endif /* CONFIG_SCHEDSTATS */ + p->sched_contributes_to_load = !!task_contributes_to_load(p); + p->state = TASK_WAKING; + + if (p->sched_class->task_waking) + p->sched_class->task_waking(p); -out_activate: + cpu = select_task_rq(p, SD_BALANCE_WAKE, wake_flags); + if (task_cpu(p) != cpu) + set_task_cpu(p, cpu); #endif /* CONFIG_SMP */ - ttwu_activate(p, rq, wake_flags & WF_SYNC, orig_cpu != cpu, - cpu == this_cpu, en_flags); - success = 1; -out_running: - ttwu_post_activation(p, rq, wake_flags, success); + + ttwu_queue(p, cpu); +stat: + ttwu_stat(p, cpu, wake_flags); out: - task_rq_unlock(rq, &flags); - put_cpu(); + raw_spin_unlock_irqrestore(&p->pi_lock, flags); return success; } @@ -2547,31 +2657,34 @@ out: * try_to_wake_up_local - try to wake up a local task with rq lock held * @p: the thread to be awakened * - * Put @p on the run-queue if it's not already there. The caller must + * Put @p on the run-queue if it's not already there. The caller must * ensure that this_rq() is locked, @p is bound to this_rq() and not - * the current task. this_rq() stays locked over invocation. + * the current task. */ static void try_to_wake_up_local(struct task_struct *p) { struct rq *rq = task_rq(p); - bool success = false; BUG_ON(rq != this_rq()); BUG_ON(p == current); lockdep_assert_held(&rq->lock); + if (!raw_spin_trylock(&p->pi_lock)) { + raw_spin_unlock(&rq->lock); + raw_spin_lock(&p->pi_lock); + raw_spin_lock(&rq->lock); + } + if (!(p->state & TASK_NORMAL)) - return; + goto out; - if (!p->se.on_rq) { - if (likely(!task_running(rq, p))) { - schedstat_inc(rq, ttwu_count); - schedstat_inc(rq, ttwu_local); - } - ttwu_activate(p, rq, false, false, true, ENQUEUE_WAKEUP); - success = true; - } - ttwu_post_activation(p, rq, 0, success); + if (!p->on_rq) + ttwu_activate(rq, p, ENQUEUE_WAKEUP); + + ttwu_do_wakeup(rq, p, 0); + ttwu_stat(p, smp_processor_id(), 0); +out: + raw_spin_unlock(&p->pi_lock); } /** @@ -2604,19 +2717,21 @@ int wake_up_state(struct task_struct *p, unsigned int state) */ static void __sched_fork(struct task_struct *p) { + p->on_rq = 0; + + p->se.on_rq = 0; p->se.exec_start = 0; p->se.sum_exec_runtime = 0; p->se.prev_sum_exec_runtime = 0; p->se.nr_migrations = 0; p->se.vruntime = 0; + INIT_LIST_HEAD(&p->se.group_node); #ifdef CONFIG_SCHEDSTATS memset(&p->se.statistics, 0, sizeof(p->se.statistics)); #endif INIT_LIST_HEAD(&p->rt.run_list); - p->se.on_rq = 0; - INIT_LIST_HEAD(&p->se.group_node); #ifdef CONFIG_PREEMPT_NOTIFIERS INIT_HLIST_HEAD(&p->preempt_notifiers); @@ -2626,8 +2741,9 @@ static void __sched_fork(struct task_struct *p) /* * fork()/clone()-time setup: */ -void sched_fork(struct task_struct *p, int clone_flags) +void sched_fork(struct task_struct *p) { + unsigned long flags; int cpu = get_cpu(); __sched_fork(p); @@ -2678,16 +2794,16 @@ void sched_fork(struct task_struct *p, int clone_flags) * * Silence PROVE_RCU. */ - rcu_read_lock(); + raw_spin_lock_irqsave(&p->pi_lock, flags); set_task_cpu(p, cpu); - rcu_read_unlock(); + raw_spin_unlock_irqrestore(&p->pi_lock, flags); #if defined(CONFIG_SCHEDSTATS) || defined(CONFIG_TASK_DELAY_ACCT) if (likely(sched_info_on())) memset(&p->sched_info, 0, sizeof(p->sched_info)); #endif -#if defined(CONFIG_SMP) && defined(__ARCH_WANT_UNLOCKED_CTXSW) - p->oncpu = 0; +#if defined(CONFIG_SMP) + p->on_cpu = 0; #endif #ifdef CONFIG_PREEMPT /* Want to start with kernel preemption disabled. */ @@ -2707,41 +2823,31 @@ void sched_fork(struct task_struct *p, int clone_flags) * that must be done for every newly created context, then puts the task * on the runqueue and wakes it. */ -void wake_up_new_task(struct task_struct *p, unsigned long clone_flags) +void wake_up_new_task(struct task_struct *p) { unsigned long flags; struct rq *rq; - int cpu __maybe_unused = get_cpu(); + raw_spin_lock_irqsave(&p->pi_lock, flags); #ifdef CONFIG_SMP - rq = task_rq_lock(p, &flags); - p->state = TASK_WAKING; - /* * Fork balancing, do it here and not earlier because: * - cpus_allowed can change in the fork path * - any previously selected cpu might disappear through hotplug - * - * We set TASK_WAKING so that select_task_rq() can drop rq->lock - * without people poking at ->cpus_allowed. */ - cpu = select_task_rq(rq, p, SD_BALANCE_FORK, 0); - set_task_cpu(p, cpu); - - p->state = TASK_RUNNING; - task_rq_unlock(rq, &flags); + set_task_cpu(p, select_task_rq(p, SD_BALANCE_FORK, 0)); #endif - rq = task_rq_lock(p, &flags); + rq = __task_rq_lock(p); activate_task(rq, p, 0); - trace_sched_wakeup_new(p, 1); + p->on_rq = 1; + trace_sched_wakeup_new(p, true); check_preempt_curr(rq, p, WF_FORK); #ifdef CONFIG_SMP if (p->sched_class->task_woken) p->sched_class->task_woken(rq, p); #endif - task_rq_unlock(rq, &flags); - put_cpu(); + task_rq_unlock(rq, p, &flags); } #ifdef CONFIG_PREEMPT_NOTIFIERS @@ -3450,27 +3556,22 @@ void sched_exec(void) { struct task_struct *p = current; unsigned long flags; - struct rq *rq; int dest_cpu; - rq = task_rq_lock(p, &flags); - dest_cpu = p->sched_class->select_task_rq(rq, p, SD_BALANCE_EXEC, 0); + raw_spin_lock_irqsave(&p->pi_lock, flags); + dest_cpu = p->sched_class->select_task_rq(p, SD_BALANCE_EXEC, 0); if (dest_cpu == smp_processor_id()) goto unlock; - /* - * select_task_rq() can race against ->cpus_allowed - */ - if (cpumask_test_cpu(dest_cpu, &p->cpus_allowed) && - likely(cpu_active(dest_cpu)) && migrate_task(p, rq)) { + if (likely(cpu_active(dest_cpu))) { struct migration_arg arg = { p, dest_cpu }; - task_rq_unlock(rq, &flags); - stop_one_cpu(cpu_of(rq), migration_cpu_stop, &arg); + raw_spin_unlock_irqrestore(&p->pi_lock, flags); + stop_one_cpu(task_cpu(p), migration_cpu_stop, &arg); return; } unlock: - task_rq_unlock(rq, &flags); + raw_spin_unlock_irqrestore(&p->pi_lock, flags); } #endif @@ -3507,7 +3608,7 @@ unsigned long long task_delta_exec(struct task_struct *p) rq = task_rq_lock(p, &flags); ns = do_task_delta_exec(p, rq); - task_rq_unlock(rq, &flags); + task_rq_unlock(rq, p, &flags); return ns; } @@ -3525,7 +3626,7 @@ unsigned long long task_sched_runtime(struct task_struct *p) rq = task_rq_lock(p, &flags); ns = p->se.sum_exec_runtime + do_task_delta_exec(p, rq); - task_rq_unlock(rq, &flags); + task_rq_unlock(rq, p, &flags); return ns; } @@ -3549,7 +3650,7 @@ unsigned long long thread_group_sched_runtime(struct task_struct *p) rq = task_rq_lock(p, &flags); thread_group_cputime(p, &totals); ns = totals.sum_exec_runtime + do_task_delta_exec(p, rq); - task_rq_unlock(rq, &flags); + task_rq_unlock(rq, p, &flags); return ns; } @@ -3903,9 +4004,6 @@ void thread_group_times(struct task_struct *p, cputime_t *ut, cputime_t *st) /* * This function gets called by the timer code, with HZ frequency. * We call it with interrupts disabled. - * - * It also gets called by the fork code, when changing the parent's - * timeslices. */ void scheduler_tick(void) { @@ -4025,17 +4123,11 @@ static inline void schedule_debug(struct task_struct *prev) profile_hit(SCHED_PROFILING, __builtin_return_address(0)); schedstat_inc(this_rq(), sched_count); -#ifdef CONFIG_SCHEDSTATS - if (unlikely(prev->lock_depth >= 0)) { - schedstat_inc(this_rq(), rq_sched_info.bkl_count); - schedstat_inc(prev, sched_info.bkl_count); - } -#endif } static void put_prev_task(struct rq *rq, struct task_struct *prev) { - if (prev->se.on_rq) + if (prev->on_rq || rq->skip_clock_update < 0) update_rq_clock(rq); prev->sched_class->put_prev_task(rq, prev); } @@ -4097,11 +4189,13 @@ need_resched: if (unlikely(signal_pending_state(prev->state, prev))) { prev->state = TASK_RUNNING; } else { + deactivate_task(rq, prev, DEQUEUE_SLEEP); + prev->on_rq = 0; + /* - * If a worker is going to sleep, notify and - * ask workqueue whether it wants to wake up a - * task to maintain concurrency. If so, wake - * up the task. + * If a worker went to sleep, notify and ask workqueue + * whether it wants to wake up a task to maintain + * concurrency. */ if (prev->flags & PF_WQ_WORKER) { struct task_struct *to_wakeup; @@ -4110,11 +4204,10 @@ need_resched: if (to_wakeup) try_to_wake_up_local(to_wakeup); } - deactivate_task(rq, prev, DEQUEUE_SLEEP); /* - * If we are going to sleep and we have plugged IO queued, make - * sure to submit it to avoid deadlocks. + * If we are going to sleep and we have plugged IO + * queued, make sure to submit it to avoid deadlocks. */ if (blk_needs_flush_plug(prev)) { raw_spin_unlock(&rq->lock); @@ -4161,70 +4254,53 @@ need_resched: EXPORT_SYMBOL(schedule); #ifdef CONFIG_MUTEX_SPIN_ON_OWNER -/* - * Look out! "owner" is an entirely speculative pointer - * access and not reliable. - */ -int mutex_spin_on_owner(struct mutex *lock, struct thread_info *owner) -{ - unsigned int cpu; - struct rq *rq; - if (!sched_feat(OWNER_SPIN)) - return 0; +static inline bool owner_running(struct mutex *lock, struct task_struct *owner) +{ + bool ret = false; -#ifdef CONFIG_DEBUG_PAGEALLOC - /* - * Need to access the cpu field knowing that - * DEBUG_PAGEALLOC could have unmapped it if - * the mutex owner just released it and exited. - */ - if (probe_kernel_address(&owner->cpu, cpu)) - return 0; -#else - cpu = owner->cpu; -#endif + rcu_read_lock(); + if (lock->owner != owner) + goto fail; /* - * Even if the access succeeded (likely case), - * the cpu field may no longer be valid. + * Ensure we emit the owner->on_cpu, dereference _after_ checking + * lock->owner still matches owner, if that fails, owner might + * point to free()d memory, if it still matches, the rcu_read_lock() + * ensures the memory stays valid. */ - if (cpu >= nr_cpumask_bits) - return 0; + barrier(); - /* - * We need to validate that we can do a - * get_cpu() and that we have the percpu area. - */ - if (!cpu_online(cpu)) - return 0; + ret = owner->on_cpu; +fail: + rcu_read_unlock(); - rq = cpu_rq(cpu); + return ret; +} - for (;;) { - /* - * Owner changed, break to re-assess state. - */ - if (lock->owner != owner) { - /* - * If the lock has switched to a different owner, - * we likely have heavy contention. Return 0 to quit - * optimistic spinning and not contend further: - */ - if (lock->owner) - return 0; - break; - } +/* + * Look out! "owner" is an entirely speculative pointer + * access and not reliable. + */ +int mutex_spin_on_owner(struct mutex *lock, struct task_struct *owner) +{ + if (!sched_feat(OWNER_SPIN)) + return 0; - /* - * Is that owner really running on that cpu? - */ - if (task_thread_info(rq->curr) != owner || need_resched()) + while (owner_running(lock, owner)) { + if (need_resched()) return 0; arch_mutex_cpu_relax(); } + /* + * If the owner changed to another task there is likely + * heavy contention, stop spinning. + */ + if (lock->owner) + return 0; + return 1; } #endif @@ -4684,19 +4760,18 @@ EXPORT_SYMBOL(sleep_on_timeout); */ void rt_mutex_setprio(struct task_struct *p, int prio) { - unsigned long flags; int oldprio, on_rq, running; struct rq *rq; const struct sched_class *prev_class; BUG_ON(prio < 0 || prio > MAX_PRIO); - rq = task_rq_lock(p, &flags); + rq = __task_rq_lock(p); trace_sched_pi_setprio(p, prio); oldprio = p->prio; prev_class = p->sched_class; - on_rq = p->se.on_rq; + on_rq = p->on_rq; running = task_current(rq, p); if (on_rq) dequeue_task(rq, p, 0); @@ -4716,7 +4791,7 @@ void rt_mutex_setprio(struct task_struct *p, int prio) enqueue_task(rq, p, oldprio < prio ? ENQUEUE_HEAD : 0); check_class_changed(rq, p, prev_class, oldprio); - task_rq_unlock(rq, &flags); + __task_rq_unlock(rq); } #endif @@ -4744,7 +4819,7 @@ void set_user_nice(struct task_struct *p, long nice) p->static_prio = NICE_TO_PRIO(nice); goto out_unlock; } - on_rq = p->se.on_rq; + on_rq = p->on_rq; if (on_rq) dequeue_task(rq, p, 0); @@ -4764,7 +4839,7 @@ void set_user_nice(struct task_struct *p, long nice) resched_task(rq->curr); } out_unlock: - task_rq_unlock(rq, &flags); + task_rq_unlock(rq, p, &flags); } EXPORT_SYMBOL(set_user_nice); @@ -4878,8 +4953,6 @@ static struct task_struct *find_process_by_pid(pid_t pid) static void __setscheduler(struct rq *rq, struct task_struct *p, int policy, int prio) { - BUG_ON(p->se.on_rq); - p->policy = policy; p->rt_priority = prio; p->normal_prio = normal_prio(p); @@ -4994,20 +5067,17 @@ recheck: /* * make sure no PI-waiters arrive (or leave) while we are * changing the priority of the task: - */ - raw_spin_lock_irqsave(&p->pi_lock, flags); - /* + * * To be able to change p->policy safely, the appropriate * runqueue lock must be held. */ - rq = __task_rq_lock(p); + rq = task_rq_lock(p, &flags); /* * Changing the policy of the stop threads its a very bad idea */ if (p == rq->stop) { - __task_rq_unlock(rq); - raw_spin_unlock_irqrestore(&p->pi_lock, flags); + task_rq_unlock(rq, p, &flags); return -EINVAL; } @@ -5031,8 +5101,7 @@ recheck: if (rt_bandwidth_enabled() && rt_policy(policy) && task_group(p)->rt_bandwidth.rt_runtime == 0 && !task_group_is_autogroup(task_group(p))) { - __task_rq_unlock(rq); - raw_spin_unlock_irqrestore(&p->pi_lock, flags); + task_rq_unlock(rq, p, &flags); return -EPERM; } } @@ -5041,11 +5110,10 @@ recheck: /* recheck policy now with rq lock held */ if (unlikely(oldpolicy != -1 && oldpolicy != p->policy)) { policy = oldpolicy = -1; - __task_rq_unlock(rq); - raw_spin_unlock_irqrestore(&p->pi_lock, flags); + task_rq_unlock(rq, p, &flags); goto recheck; } - on_rq = p->se.on_rq; + on_rq = p->on_rq; running = task_current(rq, p); if (on_rq) deactivate_task(rq, p, 0); @@ -5064,8 +5132,7 @@ recheck: activate_task(rq, p, 0); check_class_changed(rq, p, prev_class, oldprio); - __task_rq_unlock(rq); - raw_spin_unlock_irqrestore(&p->pi_lock, flags); + task_rq_unlock(rq, p, &flags); rt_mutex_adjust_pi(p); @@ -5316,7 +5383,6 @@ long sched_getaffinity(pid_t pid, struct cpumask *mask) { struct task_struct *p; unsigned long flags; - struct rq *rq; int retval; get_online_cpus(); @@ -5331,9 +5397,9 @@ long sched_getaffinity(pid_t pid, struct cpumask *mask) if (retval) goto out_unlock; - rq = task_rq_lock(p, &flags); + raw_spin_lock_irqsave(&p->pi_lock, flags); cpumask_and(mask, &p->cpus_allowed, cpu_online_mask); - task_rq_unlock(rq, &flags); + raw_spin_unlock_irqrestore(&p->pi_lock, flags); out_unlock: rcu_read_unlock(); @@ -5658,7 +5724,7 @@ SYSCALL_DEFINE2(sched_rr_get_interval, pid_t, pid, rq = task_rq_lock(p, &flags); time_slice = p->sched_class->get_rr_interval(rq, p); - task_rq_unlock(rq, &flags); + task_rq_unlock(rq, p, &flags); rcu_read_unlock(); jiffies_to_timespec(time_slice, &t); @@ -5776,17 +5842,14 @@ void __cpuinit init_idle(struct task_struct *idle, int cpu) rcu_read_unlock(); rq->curr = rq->idle = idle; -#if defined(CONFIG_SMP) && defined(__ARCH_WANT_UNLOCKED_CTXSW) - idle->oncpu = 1; +#if defined(CONFIG_SMP) + idle->on_cpu = 1; #endif raw_spin_unlock_irqrestore(&rq->lock, flags); /* Set the preempt count _outside_ the spinlocks! */ -#if defined(CONFIG_PREEMPT) - task_thread_info(idle)->preempt_count = (idle->lock_depth >= 0); -#else task_thread_info(idle)->preempt_count = 0; -#endif + /* * The idle tasks have their own, simple scheduling class: */ @@ -5881,26 +5944,17 @@ int set_cpus_allowed_ptr(struct task_struct *p, const struct cpumask *new_mask) unsigned int dest_cpu; int ret = 0; - /* - * Serialize against TASK_WAKING so that ttwu() and wunt() can - * drop the rq->lock and still rely on ->cpus_allowed. - */ -again: - while (task_is_waking(p)) - cpu_relax(); rq = task_rq_lock(p, &flags); - if (task_is_waking(p)) { - task_rq_unlock(rq, &flags); - goto again; - } + + if (cpumask_equal(&p->cpus_allowed, new_mask)) + goto out; if (!cpumask_intersects(new_mask, cpu_active_mask)) { ret = -EINVAL; goto out; } - if (unlikely((p->flags & PF_THREAD_BOUND) && p != current && - !cpumask_equal(&p->cpus_allowed, new_mask))) { + if (unlikely((p->flags & PF_THREAD_BOUND) && p != current)) { ret = -EINVAL; goto out; } @@ -5917,16 +5971,16 @@ again: goto out; dest_cpu = cpumask_any_and(cpu_active_mask, new_mask); - if (migrate_task(p, rq)) { + if (p->on_rq) { struct migration_arg arg = { p, dest_cpu }; /* Need help from migration thread: drop lock and wait. */ - task_rq_unlock(rq, &flags); + task_rq_unlock(rq, p, &flags); stop_one_cpu(cpu_of(rq), migration_cpu_stop, &arg); tlb_migrate_finish(p->mm); return 0; } out: - task_rq_unlock(rq, &flags); + task_rq_unlock(rq, p, &flags); return ret; } @@ -5954,6 +6008,7 @@ static int __migrate_task(struct task_struct *p, int src_cpu, int dest_cpu) rq_src = cpu_rq(src_cpu); rq_dest = cpu_rq(dest_cpu); + raw_spin_lock(&p->pi_lock); double_rq_lock(rq_src, rq_dest); /* Already moved. */ if (task_cpu(p) != src_cpu) @@ -5966,7 +6021,7 @@ static int __migrate_task(struct task_struct *p, int src_cpu, int dest_cpu) * If we're not on a rq, the next wake-up will ensure we're * placed properly. */ - if (p->se.on_rq) { + if (p->on_rq) { deactivate_task(rq_src, p, 0); set_task_cpu(p, dest_cpu); activate_task(rq_dest, p, 0); @@ -5976,6 +6031,7 @@ done: ret = 1; fail: double_rq_unlock(rq_src, rq_dest); + raw_spin_unlock(&p->pi_lock); return ret; } @@ -6316,6 +6372,7 @@ migration_call(struct notifier_block *nfb, unsigned long action, void *hcpu) #ifdef CONFIG_HOTPLUG_CPU case CPU_DYING: + sched_ttwu_pending(); /* Update our root-domain */ raw_spin_lock_irqsave(&rq->lock, flags); if (rq->rd) { @@ -6394,6 +6451,8 @@ early_initcall(migration_init); #ifdef CONFIG_SMP +static cpumask_var_t sched_domains_tmpmask; /* sched_domains_mutex */ + #ifdef CONFIG_SCHED_DEBUG static __read_mostly int sched_domain_debug_enabled; @@ -6489,7 +6548,6 @@ static int sched_domain_debug_one(struct sched_domain *sd, int cpu, int level, static void sched_domain_debug(struct sched_domain *sd, int cpu) { - cpumask_var_t groupmask; int level = 0; if (!sched_domain_debug_enabled) @@ -6502,20 +6560,14 @@ static void sched_domain_debug(struct sched_domain *sd, int cpu) printk(KERN_DEBUG "CPU%d attaching sched-domain:\n", cpu); - if (!alloc_cpumask_var(&groupmask, GFP_KERNEL)) { - printk(KERN_DEBUG "Cannot load-balance (out of memory)\n"); - return; - } - for (;;) { - if (sched_domain_debug_one(sd, cpu, level, groupmask)) + if (sched_domain_debug_one(sd, cpu, level, sched_domains_tmpmask)) break; level++; sd = sd->parent; if (!sd) break; } - free_cpumask_var(groupmask); } #else /* !CONFIG_SCHED_DEBUG */ # define sched_domain_debug(sd, cpu) do { } while (0) @@ -6572,12 +6624,11 @@ sd_parent_degenerate(struct sched_domain *sd, struct sched_domain *parent) return 1; } -static void free_rootdomain(struct root_domain *rd) +static void free_rootdomain(struct rcu_head *rcu) { - synchronize_sched(); + struct root_domain *rd = container_of(rcu, struct root_domain, rcu); cpupri_cleanup(&rd->cpupri); - free_cpumask_var(rd->rto_mask); free_cpumask_var(rd->online); free_cpumask_var(rd->span); @@ -6618,7 +6669,7 @@ static void rq_attach_root(struct rq *rq, struct root_domain *rd) raw_spin_unlock_irqrestore(&rq->lock, flags); if (old_rd) - free_rootdomain(old_rd); + call_rcu_sched(&old_rd->rcu, free_rootdomain); } static int init_rootdomain(struct root_domain *rd) @@ -6669,6 +6720,25 @@ static struct root_domain *alloc_rootdomain(void) return rd; } +static void free_sched_domain(struct rcu_head *rcu) +{ + struct sched_domain *sd = container_of(rcu, struct sched_domain, rcu); + if (atomic_dec_and_test(&sd->groups->ref)) + kfree(sd->groups); + kfree(sd); +} + +static void destroy_sched_domain(struct sched_domain *sd, int cpu) +{ + call_rcu(&sd->rcu, free_sched_domain); +} + +static void destroy_sched_domains(struct sched_domain *sd, int cpu) +{ + for (; sd; sd = sd->parent) + destroy_sched_domain(sd, cpu); +} + /* * Attach the domain 'sd' to 'cpu' as its base domain. Callers must * hold the hotplug lock. @@ -6679,9 +6749,6 @@ cpu_attach_domain(struct sched_domain *sd, struct root_domain *rd, int cpu) struct rq *rq = cpu_rq(cpu); struct sched_domain *tmp; - for (tmp = sd; tmp; tmp = tmp->parent) - tmp->span_weight = cpumask_weight(sched_domain_span(tmp)); - /* Remove the sched domains which do not contribute to scheduling. */ for (tmp = sd; tmp; ) { struct sched_domain *parent = tmp->parent; @@ -6692,12 +6759,15 @@ cpu_attach_domain(struct sched_domain *sd, struct root_domain *rd, int cpu) tmp->parent = parent->parent; if (parent->parent) parent->parent->child = tmp; + destroy_sched_domain(parent, cpu); } else tmp = tmp->parent; } if (sd && sd_degenerate(sd)) { + tmp = sd; sd = sd->parent; + destroy_sched_domain(tmp, cpu); if (sd) sd->child = NULL; } @@ -6705,7 +6775,9 @@ cpu_attach_domain(struct sched_domain *sd, struct root_domain *rd, int cpu) sched_domain_debug(sd, cpu); rq_attach_root(rq, rd); + tmp = rq->sd; rcu_assign_pointer(rq->sd, sd); + destroy_sched_domains(tmp, cpu); } /* cpus with isolated domains */ @@ -6721,56 +6793,6 @@ static int __init isolated_cpu_setup(char *str) __setup("isolcpus=", isolated_cpu_setup); -/* - * init_sched_build_groups takes the cpumask we wish to span, and a pointer - * to a function which identifies what group(along with sched group) a CPU - * belongs to. The return value of group_fn must be a >= 0 and < nr_cpu_ids - * (due to the fact that we keep track of groups covered with a struct cpumask). - * - * init_sched_build_groups will build a circular linked list of the groups - * covered by the given span, and will set each group's ->cpumask correctly, - * and ->cpu_power to 0. - */ -static void -init_sched_build_groups(const struct cpumask *span, - const struct cpumask *cpu_map, - int (*group_fn)(int cpu, const struct cpumask *cpu_map, - struct sched_group **sg, - struct cpumask *tmpmask), - struct cpumask *covered, struct cpumask *tmpmask) -{ - struct sched_group *first = NULL, *last = NULL; - int i; - - cpumask_clear(covered); - - for_each_cpu(i, span) { - struct sched_group *sg; - int group = group_fn(i, cpu_map, &sg, tmpmask); - int j; - - if (cpumask_test_cpu(i, covered)) - continue; - - cpumask_clear(sched_group_cpus(sg)); - sg->cpu_power = 0; - - for_each_cpu(j, span) { - if (group_fn(j, cpu_map, NULL, tmpmask) != group) - continue; - - cpumask_set_cpu(j, covered); - cpumask_set_cpu(j, sched_group_cpus(sg)); - } - if (!first) - first = sg; - if (last) - last->next = sg; - last = sg; - } - last->next = first; -} - #define SD_NODES_PER_DOMAIN 16 #ifdef CONFIG_NUMA @@ -6787,7 +6809,7 @@ init_sched_build_groups(const struct cpumask *span, */ static int find_next_best_node(int node, nodemask_t *used_nodes) { - int i, n, val, min_val, best_node = 0; + int i, n, val, min_val, best_node = -1; min_val = INT_MAX; @@ -6811,7 +6833,8 @@ static int find_next_best_node(int node, nodemask_t *used_nodes) } } - node_set(best_node, *used_nodes); + if (best_node != -1) + node_set(best_node, *used_nodes); return best_node; } @@ -6837,315 +6860,130 @@ static void sched_domain_node_span(int node, struct cpumask *span) for (i = 1; i < SD_NODES_PER_DOMAIN; i++) { int next_node = find_next_best_node(node, &used_nodes); - + if (next_node < 0) + break; cpumask_or(span, span, cpumask_of_node(next_node)); } } + +static const struct cpumask *cpu_node_mask(int cpu) +{ + lockdep_assert_held(&sched_domains_mutex); + + sched_domain_node_span(cpu_to_node(cpu), sched_domains_tmpmask); + + return sched_domains_tmpmask; +} + +static const struct cpumask *cpu_allnodes_mask(int cpu) +{ + return cpu_possible_mask; +} #endif /* CONFIG_NUMA */ -int sched_smt_power_savings = 0, sched_mc_power_savings = 0; +static const struct cpumask *cpu_cpu_mask(int cpu) +{ + return cpumask_of_node(cpu_to_node(cpu)); +} -/* - * The cpus mask in sched_group and sched_domain hangs off the end. - * - * ( See the the comments in include/linux/sched.h:struct sched_group - * and struct sched_domain. ) - */ -struct static_sched_group { - struct sched_group sg; - DECLARE_BITMAP(cpus, CONFIG_NR_CPUS); -}; +int sched_smt_power_savings = 0, sched_mc_power_savings = 0; -struct static_sched_domain { - struct sched_domain sd; - DECLARE_BITMAP(span, CONFIG_NR_CPUS); +struct sd_data { + struct sched_domain **__percpu sd; + struct sched_group **__percpu sg; }; struct s_data { -#ifdef CONFIG_NUMA - int sd_allnodes; - cpumask_var_t domainspan; - cpumask_var_t covered; - cpumask_var_t notcovered; -#endif - cpumask_var_t nodemask; - cpumask_var_t this_sibling_map; - cpumask_var_t this_core_map; - cpumask_var_t this_book_map; - cpumask_var_t send_covered; - cpumask_var_t tmpmask; - struct sched_group **sched_group_nodes; + struct sched_domain ** __percpu sd; struct root_domain *rd; }; enum s_alloc { - sa_sched_groups = 0, sa_rootdomain, - sa_tmpmask, - sa_send_covered, - sa_this_book_map, - sa_this_core_map, - sa_this_sibling_map, - sa_nodemask, - sa_sched_group_nodes, -#ifdef CONFIG_NUMA - sa_notcovered, - sa_covered, - sa_domainspan, -#endif + sa_sd, + sa_sd_storage, sa_none, }; -/* - * SMT sched-domains: - */ -#ifdef CONFIG_SCHED_SMT -static DEFINE_PER_CPU(struct static_sched_domain, cpu_domains); -static DEFINE_PER_CPU(struct static_sched_group, sched_groups); +struct sched_domain_topology_level; -static int -cpu_to_cpu_group(int cpu, const struct cpumask *cpu_map, - struct sched_group **sg, struct cpumask *unused) -{ - if (sg) - *sg = &per_cpu(sched_groups, cpu).sg; - return cpu; -} -#endif /* CONFIG_SCHED_SMT */ +typedef struct sched_domain *(*sched_domain_init_f)(struct sched_domain_topology_level *tl, int cpu); +typedef const struct cpumask *(*sched_domain_mask_f)(int cpu); -/* - * multi-core sched-domains: - */ -#ifdef CONFIG_SCHED_MC -static DEFINE_PER_CPU(struct static_sched_domain, core_domains); -static DEFINE_PER_CPU(struct static_sched_group, sched_group_core); - -static int -cpu_to_core_group(int cpu, const struct cpumask *cpu_map, - struct sched_group **sg, struct cpumask *mask) -{ - int group; -#ifdef CONFIG_SCHED_SMT - cpumask_and(mask, topology_thread_cpumask(cpu), cpu_map); - group = cpumask_first(mask); -#else - group = cpu; -#endif - if (sg) - *sg = &per_cpu(sched_group_core, group).sg; - return group; -} -#endif /* CONFIG_SCHED_MC */ +struct sched_domain_topology_level { + sched_domain_init_f init; + sched_domain_mask_f mask; + struct sd_data data; +}; /* - * book sched-domains: + * Assumes the sched_domain tree is fully constructed */ -#ifdef CONFIG_SCHED_BOOK -static DEFINE_PER_CPU(struct static_sched_domain, book_domains); -static DEFINE_PER_CPU(struct static_sched_group, sched_group_book); - -static int -cpu_to_book_group(int cpu, const struct cpumask *cpu_map, - struct sched_group **sg, struct cpumask *mask) +static int get_group(int cpu, struct sd_data *sdd, struct sched_group **sg) { - int group = cpu; -#ifdef CONFIG_SCHED_MC - cpumask_and(mask, cpu_coregroup_mask(cpu), cpu_map); - group = cpumask_first(mask); -#elif defined(CONFIG_SCHED_SMT) - cpumask_and(mask, topology_thread_cpumask(cpu), cpu_map); - group = cpumask_first(mask); -#endif - if (sg) - *sg = &per_cpu(sched_group_book, group).sg; - return group; -} -#endif /* CONFIG_SCHED_BOOK */ + struct sched_domain *sd = *per_cpu_ptr(sdd->sd, cpu); + struct sched_domain *child = sd->child; -static DEFINE_PER_CPU(struct static_sched_domain, phys_domains); -static DEFINE_PER_CPU(struct static_sched_group, sched_group_phys); + if (child) + cpu = cpumask_first(sched_domain_span(child)); -static int -cpu_to_phys_group(int cpu, const struct cpumask *cpu_map, - struct sched_group **sg, struct cpumask *mask) -{ - int group; -#ifdef CONFIG_SCHED_BOOK - cpumask_and(mask, cpu_book_mask(cpu), cpu_map); - group = cpumask_first(mask); -#elif defined(CONFIG_SCHED_MC) - cpumask_and(mask, cpu_coregroup_mask(cpu), cpu_map); - group = cpumask_first(mask); -#elif defined(CONFIG_SCHED_SMT) - cpumask_and(mask, topology_thread_cpumask(cpu), cpu_map); - group = cpumask_first(mask); -#else - group = cpu; -#endif if (sg) - *sg = &per_cpu(sched_group_phys, group).sg; - return group; + *sg = *per_cpu_ptr(sdd->sg, cpu); + + return cpu; } -#ifdef CONFIG_NUMA /* - * The init_sched_build_groups can't handle what we want to do with node - * groups, so roll our own. Now each node has its own list of groups which - * gets dynamically allocated. + * build_sched_groups takes the cpumask we wish to span, and a pointer + * to a function which identifies what group(along with sched group) a CPU + * belongs to. The return value of group_fn must be a >= 0 and < nr_cpu_ids + * (due to the fact that we keep track of groups covered with a struct cpumask). + * + * build_sched_groups will build a circular linked list of the groups + * covered by the given span, and will set each group's ->cpumask correctly, + * and ->cpu_power to 0. */ -static DEFINE_PER_CPU(struct static_sched_domain, node_domains); -static struct sched_group ***sched_group_nodes_bycpu; - -static DEFINE_PER_CPU(struct static_sched_domain, allnodes_domains); -static DEFINE_PER_CPU(struct static_sched_group, sched_group_allnodes); - -static int cpu_to_allnodes_group(int cpu, const struct cpumask *cpu_map, - struct sched_group **sg, - struct cpumask *nodemask) -{ - int group; - - cpumask_and(nodemask, cpumask_of_node(cpu_to_node(cpu)), cpu_map); - group = cpumask_first(nodemask); - - if (sg) - *sg = &per_cpu(sched_group_allnodes, group).sg; - return group; -} - -static void init_numa_sched_groups_power(struct sched_group *group_head) -{ - struct sched_group *sg = group_head; - int j; - - if (!sg) - return; - do { - for_each_cpu(j, sched_group_cpus(sg)) { - struct sched_domain *sd; - - sd = &per_cpu(phys_domains, j).sd; - if (j != group_first_cpu(sd->groups)) { - /* - * Only add "power" once for each - * physical package. - */ - continue; - } - - sg->cpu_power += sd->groups->cpu_power; - } - sg = sg->next; - } while (sg != group_head); -} - -static int build_numa_sched_groups(struct s_data *d, - const struct cpumask *cpu_map, int num) +static void +build_sched_groups(struct sched_domain *sd) { - struct sched_domain *sd; - struct sched_group *sg, *prev; - int n, j; - - cpumask_clear(d->covered); - cpumask_and(d->nodemask, cpumask_of_node(num), cpu_map); - if (cpumask_empty(d->nodemask)) { - d->sched_group_nodes[num] = NULL; - goto out; - } - - sched_domain_node_span(num, d->domainspan); - cpumask_and(d->domainspan, d->domainspan, cpu_map); - - sg = kmalloc_node(sizeof(struct sched_group) + cpumask_size(), - GFP_KERNEL, num); - if (!sg) { - printk(KERN_WARNING "Can not alloc domain group for node %d\n", - num); - return -ENOMEM; - } - d->sched_group_nodes[num] = sg; - - for_each_cpu(j, d->nodemask) { - sd = &per_cpu(node_domains, j).sd; - sd->groups = sg; - } - - sg->cpu_power = 0; - cpumask_copy(sched_group_cpus(sg), d->nodemask); - sg->next = sg; - cpumask_or(d->covered, d->covered, d->nodemask); + struct sched_group *first = NULL, *last = NULL; + struct sd_data *sdd = sd->private; + const struct cpumask *span = sched_domain_span(sd); + struct cpumask *covered; + int i; - prev = sg; - for (j = 0; j < nr_node_ids; j++) { - n = (num + j) % nr_node_ids; - cpumask_complement(d->notcovered, d->covered); - cpumask_and(d->tmpmask, d->notcovered, cpu_map); - cpumask_and(d->tmpmask, d->tmpmask, d->domainspan); - if (cpumask_empty(d->tmpmask)) - break; - cpumask_and(d->tmpmask, d->tmpmask, cpumask_of_node(n)); - if (cpumask_empty(d->tmpmask)) - continue; - sg = kmalloc_node(sizeof(struct sched_group) + cpumask_size(), - GFP_KERNEL, num); - if (!sg) { - printk(KERN_WARNING - "Can not alloc domain group for node %d\n", j); - return -ENOMEM; - } - sg->cpu_power = 0; - cpumask_copy(sched_group_cpus(sg), d->tmpmask); - sg->next = prev->next; - cpumask_or(d->covered, d->covered, d->tmpmask); - prev->next = sg; - prev = sg; - } -out: - return 0; -} -#endif /* CONFIG_NUMA */ + lockdep_assert_held(&sched_domains_mutex); + covered = sched_domains_tmpmask; -#ifdef CONFIG_NUMA -/* Free memory allocated for various sched_group structures */ -static void free_sched_groups(const struct cpumask *cpu_map, - struct cpumask *nodemask) -{ - int cpu, i; + cpumask_clear(covered); - for_each_cpu(cpu, cpu_map) { - struct sched_group **sched_group_nodes - = sched_group_nodes_bycpu[cpu]; + for_each_cpu(i, span) { + struct sched_group *sg; + int group = get_group(i, sdd, &sg); + int j; - if (!sched_group_nodes) + if (cpumask_test_cpu(i, covered)) continue; - for (i = 0; i < nr_node_ids; i++) { - struct sched_group *oldsg, *sg = sched_group_nodes[i]; + cpumask_clear(sched_group_cpus(sg)); + sg->cpu_power = 0; - cpumask_and(nodemask, cpumask_of_node(i), cpu_map); - if (cpumask_empty(nodemask)) + for_each_cpu(j, span) { + if (get_group(j, sdd, NULL) != group) continue; - if (sg == NULL) - continue; - sg = sg->next; -next_sg: - oldsg = sg; - sg = sg->next; - kfree(oldsg); - if (oldsg != sched_group_nodes[i]) - goto next_sg; + cpumask_set_cpu(j, covered); + cpumask_set_cpu(j, sched_group_cpus(sg)); } - kfree(sched_group_nodes); - sched_group_nodes_bycpu[cpu] = NULL; + + if (!first) + first = sg; + if (last) + last->next = sg; + last = sg; } + last->next = first; } -#else /* !CONFIG_NUMA */ -static void free_sched_groups(const struct cpumask *cpu_map, - struct cpumask *nodemask) -{ -} -#endif /* CONFIG_NUMA */ /* * Initialize sched groups cpu_power. @@ -7159,11 +6997,6 @@ static void free_sched_groups(const struct cpumask *cpu_map, */ static void init_sched_groups_power(int cpu, struct sched_domain *sd) { - struct sched_domain *child; - struct sched_group *group; - long power; - int weight; - WARN_ON(!sd || !sd->groups); if (cpu != group_first_cpu(sd->groups)) @@ -7171,36 +7004,7 @@ static void init_sched_groups_power(int cpu, struct sched_domain *sd) sd->groups->group_weight = cpumask_weight(sched_group_cpus(sd->groups)); - child = sd->child; - - sd->groups->cpu_power = 0; - - if (!child) { - power = SCHED_LOAD_SCALE; - weight = cpumask_weight(sched_domain_span(sd)); - /* - * SMT siblings share the power of a single core. - * Usually multiple threads get a better yield out of - * that one core than a single thread would have, - * reflect that in sd->smt_gain. - */ - if ((sd->flags & SD_SHARE_CPUPOWER) && weight > 1) { - power *= sd->smt_gain; - power /= weight; - power >>= SCHED_LOAD_SHIFT; - } - sd->groups->cpu_power += power; - return; - } - - /* - * Add cpu_power of each child group to this groups cpu_power. - */ - group = child->groups; - do { - sd->groups->cpu_power += group->cpu_power; - group = group->next; - } while (group != child->groups); + update_group_power(sd, cpu); } /* @@ -7214,15 +7018,15 @@ static void init_sched_groups_power(int cpu, struct sched_domain *sd) # define SD_INIT_NAME(sd, type) do { } while (0) #endif -#define SD_INIT(sd, type) sd_init_##type(sd) - -#define SD_INIT_FUNC(type) \ -static noinline void sd_init_##type(struct sched_domain *sd) \ -{ \ - memset(sd, 0, sizeof(*sd)); \ - *sd = SD_##type##_INIT; \ - sd->level = SD_LV_##type; \ - SD_INIT_NAME(sd, type); \ +#define SD_INIT_FUNC(type) \ +static noinline struct sched_domain * \ +sd_init_##type(struct sched_domain_topology_level *tl, int cpu) \ +{ \ + struct sched_domain *sd = *per_cpu_ptr(tl->data.sd, cpu); \ + *sd = SD_##type##_INIT; \ + SD_INIT_NAME(sd, type); \ + sd->private = &tl->data; \ + return sd; \ } SD_INIT_FUNC(CPU) @@ -7241,13 +7045,14 @@ SD_INIT_FUNC(CPU) #endif static int default_relax_domain_level = -1; +int sched_domain_level_max; static int __init setup_relax_domain_level(char *str) { unsigned long val; val = simple_strtoul(str, NULL, 0); - if (val < SD_LV_MAX) + if (val < sched_domain_level_max) default_relax_domain_level = val; return 1; @@ -7275,37 +7080,20 @@ static void set_domain_attribute(struct sched_domain *sd, } } +static void __sdt_free(const struct cpumask *cpu_map); +static int __sdt_alloc(const struct cpumask *cpu_map); + static void __free_domain_allocs(struct s_data *d, enum s_alloc what, const struct cpumask *cpu_map) { switch (what) { - case sa_sched_groups: - free_sched_groups(cpu_map, d->tmpmask); /* fall through */ - d->sched_group_nodes = NULL; case sa_rootdomain: - free_rootdomain(d->rd); /* fall through */ - case sa_tmpmask: - free_cpumask_var(d->tmpmask); /* fall through */ - case sa_send_covered: - free_cpumask_var(d->send_covered); /* fall through */ - case sa_this_book_map: - free_cpumask_var(d->this_book_map); /* fall through */ - case sa_this_core_map: - free_cpumask_var(d->this_core_map); /* fall through */ - case sa_this_sibling_map: - free_cpumask_var(d->this_sibling_map); /* fall through */ - case sa_nodemask: - free_cpumask_var(d->nodemask); /* fall through */ - case sa_sched_group_nodes: -#ifdef CONFIG_NUMA - kfree(d->sched_group_nodes); /* fall through */ - case sa_notcovered: - free_cpumask_var(d->notcovered); /* fall through */ - case sa_covered: - free_cpumask_var(d->covered); /* fall through */ - case sa_domainspan: - free_cpumask_var(d->domainspan); /* fall through */ -#endif + if (!atomic_read(&d->rd->refcount)) + free_rootdomain(&d->rd->rcu); /* fall through */ + case sa_sd: + free_percpu(d->sd); /* fall through */ + case sa_sd_storage: + __sdt_free(cpu_map); /* fall through */ case sa_none: break; } @@ -7314,308 +7102,212 @@ static void __free_domain_allocs(struct s_data *d, enum s_alloc what, static enum s_alloc __visit_domain_allocation_hell(struct s_data *d, const struct cpumask *cpu_map) { -#ifdef CONFIG_NUMA - if (!alloc_cpumask_var(&d->domainspan, GFP_KERNEL)) - return sa_none; - if (!alloc_cpumask_var(&d->covered, GFP_KERNEL)) - return sa_domainspan; - if (!alloc_cpumask_var(&d->notcovered, GFP_KERNEL)) - return sa_covered; - /* Allocate the per-node list of sched groups */ - d->sched_group_nodes = kcalloc(nr_node_ids, - sizeof(struct sched_group *), GFP_KERNEL); - if (!d->sched_group_nodes) { - printk(KERN_WARNING "Can not alloc sched group node list\n"); - return sa_notcovered; - } - sched_group_nodes_bycpu[cpumask_first(cpu_map)] = d->sched_group_nodes; -#endif - if (!alloc_cpumask_var(&d->nodemask, GFP_KERNEL)) - return sa_sched_group_nodes; - if (!alloc_cpumask_var(&d->this_sibling_map, GFP_KERNEL)) - return sa_nodemask; - if (!alloc_cpumask_var(&d->this_core_map, GFP_KERNEL)) - return sa_this_sibling_map; - if (!alloc_cpumask_var(&d->this_book_map, GFP_KERNEL)) - return sa_this_core_map; - if (!alloc_cpumask_var(&d->send_covered, GFP_KERNEL)) - return sa_this_book_map; - if (!alloc_cpumask_var(&d->tmpmask, GFP_KERNEL)) - return sa_send_covered; + memset(d, 0, sizeof(*d)); + + if (__sdt_alloc(cpu_map)) + return sa_sd_storage; + d->sd = alloc_percpu(struct sched_domain *); + if (!d->sd) + return sa_sd_storage; d->rd = alloc_rootdomain(); - if (!d->rd) { - printk(KERN_WARNING "Cannot alloc root domain\n"); - return sa_tmpmask; - } + if (!d->rd) + return sa_sd; return sa_rootdomain; } -static struct sched_domain *__build_numa_sched_domains(struct s_data *d, - const struct cpumask *cpu_map, struct sched_domain_attr *attr, int i) +/* + * NULL the sd_data elements we've used to build the sched_domain and + * sched_group structure so that the subsequent __free_domain_allocs() + * will not free the data we're using. + */ +static void claim_allocations(int cpu, struct sched_domain *sd) { - struct sched_domain *sd = NULL; -#ifdef CONFIG_NUMA - struct sched_domain *parent; - - d->sd_allnodes = 0; - if (cpumask_weight(cpu_map) > - SD_NODES_PER_DOMAIN * cpumask_weight(d->nodemask)) { - sd = &per_cpu(allnodes_domains, i).sd; - SD_INIT(sd, ALLNODES); - set_domain_attribute(sd, attr); - cpumask_copy(sched_domain_span(sd), cpu_map); - cpu_to_allnodes_group(i, cpu_map, &sd->groups, d->tmpmask); - d->sd_allnodes = 1; - } - parent = sd; - - sd = &per_cpu(node_domains, i).sd; - SD_INIT(sd, NODE); - set_domain_attribute(sd, attr); - sched_domain_node_span(cpu_to_node(i), sched_domain_span(sd)); - sd->parent = parent; - if (parent) - parent->child = sd; - cpumask_and(sched_domain_span(sd), sched_domain_span(sd), cpu_map); -#endif - return sd; -} + struct sd_data *sdd = sd->private; + struct sched_group *sg = sd->groups; -static struct sched_domain *__build_cpu_sched_domain(struct s_data *d, - const struct cpumask *cpu_map, struct sched_domain_attr *attr, - struct sched_domain *parent, int i) -{ - struct sched_domain *sd; - sd = &per_cpu(phys_domains, i).sd; - SD_INIT(sd, CPU); - set_domain_attribute(sd, attr); - cpumask_copy(sched_domain_span(sd), d->nodemask); - sd->parent = parent; - if (parent) - parent->child = sd; - cpu_to_phys_group(i, cpu_map, &sd->groups, d->tmpmask); - return sd; -} + WARN_ON_ONCE(*per_cpu_ptr(sdd->sd, cpu) != sd); + *per_cpu_ptr(sdd->sd, cpu) = NULL; -static struct sched_domain *__build_book_sched_domain(struct s_data *d, - const struct cpumask *cpu_map, struct sched_domain_attr *attr, - struct sched_domain *parent, int i) -{ - struct sched_domain *sd = parent; -#ifdef CONFIG_SCHED_BOOK - sd = &per_cpu(book_domains, i).sd; - SD_INIT(sd, BOOK); - set_domain_attribute(sd, attr); - cpumask_and(sched_domain_span(sd), cpu_map, cpu_book_mask(i)); - sd->parent = parent; - parent->child = sd; - cpu_to_book_group(i, cpu_map, &sd->groups, d->tmpmask); -#endif - return sd; + if (cpu == cpumask_first(sched_group_cpus(sg))) { + WARN_ON_ONCE(*per_cpu_ptr(sdd->sg, cpu) != sg); + *per_cpu_ptr(sdd->sg, cpu) = NULL; + } } -static struct sched_domain *__build_mc_sched_domain(struct s_data *d, - const struct cpumask *cpu_map, struct sched_domain_attr *attr, - struct sched_domain *parent, int i) +#ifdef CONFIG_SCHED_SMT +static const struct cpumask *cpu_smt_mask(int cpu) { - struct sched_domain *sd = parent; -#ifdef CONFIG_SCHED_MC - sd = &per_cpu(core_domains, i).sd; - SD_INIT(sd, MC); - set_domain_attribute(sd, attr); - cpumask_and(sched_domain_span(sd), cpu_map, cpu_coregroup_mask(i)); - sd->parent = parent; - parent->child = sd; - cpu_to_core_group(i, cpu_map, &sd->groups, d->tmpmask); -#endif - return sd; + return topology_thread_cpumask(cpu); } - -static struct sched_domain *__build_smt_sched_domain(struct s_data *d, - const struct cpumask *cpu_map, struct sched_domain_attr *attr, - struct sched_domain *parent, int i) -{ - struct sched_domain *sd = parent; -#ifdef CONFIG_SCHED_SMT - sd = &per_cpu(cpu_domains, i).sd; - SD_INIT(sd, SIBLING); - set_domain_attribute(sd, attr); - cpumask_and(sched_domain_span(sd), cpu_map, topology_thread_cpumask(i)); - sd->parent = parent; - parent->child = sd; - cpu_to_cpu_group(i, cpu_map, &sd->groups, d->tmpmask); #endif - return sd; -} -static void build_sched_groups(struct s_data *d, enum sched_domain_level l, - const struct cpumask *cpu_map, int cpu) -{ - switch (l) { +/* + * Topology list, bottom-up. + */ +static struct sched_domain_topology_level default_topology[] = { #ifdef CONFIG_SCHED_SMT - case SD_LV_SIBLING: /* set up CPU (sibling) groups */ - cpumask_and(d->this_sibling_map, cpu_map, - topology_thread_cpumask(cpu)); - if (cpu == cpumask_first(d->this_sibling_map)) - init_sched_build_groups(d->this_sibling_map, cpu_map, - &cpu_to_cpu_group, - d->send_covered, d->tmpmask); - break; + { sd_init_SIBLING, cpu_smt_mask, }, #endif #ifdef CONFIG_SCHED_MC - case SD_LV_MC: /* set up multi-core groups */ - cpumask_and(d->this_core_map, cpu_map, cpu_coregroup_mask(cpu)); - if (cpu == cpumask_first(d->this_core_map)) - init_sched_build_groups(d->this_core_map, cpu_map, - &cpu_to_core_group, - d->send_covered, d->tmpmask); - break; + { sd_init_MC, cpu_coregroup_mask, }, #endif #ifdef CONFIG_SCHED_BOOK - case SD_LV_BOOK: /* set up book groups */ - cpumask_and(d->this_book_map, cpu_map, cpu_book_mask(cpu)); - if (cpu == cpumask_first(d->this_book_map)) - init_sched_build_groups(d->this_book_map, cpu_map, - &cpu_to_book_group, - d->send_covered, d->tmpmask); - break; + { sd_init_BOOK, cpu_book_mask, }, #endif - case SD_LV_CPU: /* set up physical groups */ - cpumask_and(d->nodemask, cpumask_of_node(cpu), cpu_map); - if (!cpumask_empty(d->nodemask)) - init_sched_build_groups(d->nodemask, cpu_map, - &cpu_to_phys_group, - d->send_covered, d->tmpmask); - break; + { sd_init_CPU, cpu_cpu_mask, }, #ifdef CONFIG_NUMA - case SD_LV_ALLNODES: - init_sched_build_groups(cpu_map, cpu_map, &cpu_to_allnodes_group, - d->send_covered, d->tmpmask); - break; + { sd_init_NODE, cpu_node_mask, }, + { sd_init_ALLNODES, cpu_allnodes_mask, }, #endif - default: - break; + { NULL, }, +}; + +static struct sched_domain_topology_level *sched_domain_topology = default_topology; + +static int __sdt_alloc(const struct cpumask *cpu_map) +{ + struct sched_domain_topology_level *tl; + int j; + + for (tl = sched_domain_topology; tl->init; tl++) { + struct sd_data *sdd = &tl->data; + + sdd->sd = alloc_percpu(struct sched_domain *); + if (!sdd->sd) + return -ENOMEM; + + sdd->sg = alloc_percpu(struct sched_group *); + if (!sdd->sg) + return -ENOMEM; + + for_each_cpu(j, cpu_map) { + struct sched_domain *sd; + struct sched_group *sg; + + sd = kzalloc_node(sizeof(struct sched_domain) + cpumask_size(), + GFP_KERNEL, cpu_to_node(j)); + if (!sd) + return -ENOMEM; + + *per_cpu_ptr(sdd->sd, j) = sd; + + sg = kzalloc_node(sizeof(struct sched_group) + cpumask_size(), + GFP_KERNEL, cpu_to_node(j)); + if (!sg) + return -ENOMEM; + + *per_cpu_ptr(sdd->sg, j) = sg; + } + } + + return 0; +} + +static void __sdt_free(const struct cpumask *cpu_map) +{ + struct sched_domain_topology_level *tl; + int j; + + for (tl = sched_domain_topology; tl->init; tl++) { + struct sd_data *sdd = &tl->data; + + for_each_cpu(j, cpu_map) { + kfree(*per_cpu_ptr(sdd->sd, j)); + kfree(*per_cpu_ptr(sdd->sg, j)); + } + free_percpu(sdd->sd); + free_percpu(sdd->sg); + } +} + +struct sched_domain *build_sched_domain(struct sched_domain_topology_level *tl, + struct s_data *d, const struct cpumask *cpu_map, + struct sched_domain_attr *attr, struct sched_domain *child, + int cpu) +{ + struct sched_domain *sd = tl->init(tl, cpu); + if (!sd) + return child; + + set_domain_attribute(sd, attr); + cpumask_and(sched_domain_span(sd), cpu_map, tl->mask(cpu)); + if (child) { + sd->level = child->level + 1; + sched_domain_level_max = max(sched_domain_level_max, sd->level); + child->parent = sd; } + sd->child = child; + + return sd; } /* * Build sched domains for a given set of cpus and attach the sched domains * to the individual cpus */ -static int __build_sched_domains(const struct cpumask *cpu_map, - struct sched_domain_attr *attr) +static int build_sched_domains(const struct cpumask *cpu_map, + struct sched_domain_attr *attr) { enum s_alloc alloc_state = sa_none; - struct s_data d; struct sched_domain *sd; - int i; -#ifdef CONFIG_NUMA - d.sd_allnodes = 0; -#endif + struct s_data d; + int i, ret = -ENOMEM; alloc_state = __visit_domain_allocation_hell(&d, cpu_map); if (alloc_state != sa_rootdomain) goto error; - alloc_state = sa_sched_groups; - /* - * Set up domains for cpus specified by the cpu_map. - */ + /* Set up domains for cpus specified by the cpu_map. */ for_each_cpu(i, cpu_map) { - cpumask_and(d.nodemask, cpumask_of_node(cpu_to_node(i)), - cpu_map); + struct sched_domain_topology_level *tl; - sd = __build_numa_sched_domains(&d, cpu_map, attr, i); - sd = __build_cpu_sched_domain(&d, cpu_map, attr, sd, i); - sd = __build_book_sched_domain(&d, cpu_map, attr, sd, i); - sd = __build_mc_sched_domain(&d, cpu_map, attr, sd, i); - sd = __build_smt_sched_domain(&d, cpu_map, attr, sd, i); - } - - for_each_cpu(i, cpu_map) { - build_sched_groups(&d, SD_LV_SIBLING, cpu_map, i); - build_sched_groups(&d, SD_LV_BOOK, cpu_map, i); - build_sched_groups(&d, SD_LV_MC, cpu_map, i); - } - - /* Set up physical groups */ - for (i = 0; i < nr_node_ids; i++) - build_sched_groups(&d, SD_LV_CPU, cpu_map, i); + sd = NULL; + for (tl = sched_domain_topology; tl->init; tl++) + sd = build_sched_domain(tl, &d, cpu_map, attr, sd, i); -#ifdef CONFIG_NUMA - /* Set up node groups */ - if (d.sd_allnodes) - build_sched_groups(&d, SD_LV_ALLNODES, cpu_map, 0); - - for (i = 0; i < nr_node_ids; i++) - if (build_numa_sched_groups(&d, cpu_map, i)) - goto error; -#endif + while (sd->child) + sd = sd->child; - /* Calculate CPU power for physical packages and nodes */ -#ifdef CONFIG_SCHED_SMT - for_each_cpu(i, cpu_map) { - sd = &per_cpu(cpu_domains, i).sd; - init_sched_groups_power(i, sd); - } -#endif -#ifdef CONFIG_SCHED_MC - for_each_cpu(i, cpu_map) { - sd = &per_cpu(core_domains, i).sd; - init_sched_groups_power(i, sd); + *per_cpu_ptr(d.sd, i) = sd; } -#endif -#ifdef CONFIG_SCHED_BOOK - for_each_cpu(i, cpu_map) { - sd = &per_cpu(book_domains, i).sd; - init_sched_groups_power(i, sd); - } -#endif + /* Build the groups for the domains */ for_each_cpu(i, cpu_map) { - sd = &per_cpu(phys_domains, i).sd; - init_sched_groups_power(i, sd); - } + for (sd = *per_cpu_ptr(d.sd, i); sd; sd = sd->parent) { + sd->span_weight = cpumask_weight(sched_domain_span(sd)); + get_group(i, sd->private, &sd->groups); + atomic_inc(&sd->groups->ref); -#ifdef CONFIG_NUMA - for (i = 0; i < nr_node_ids; i++) - init_numa_sched_groups_power(d.sched_group_nodes[i]); + if (i != cpumask_first(sched_domain_span(sd))) + continue; - if (d.sd_allnodes) { - struct sched_group *sg; + build_sched_groups(sd); + } + } - cpu_to_allnodes_group(cpumask_first(cpu_map), cpu_map, &sg, - d.tmpmask); - init_numa_sched_groups_power(sg); + /* Calculate CPU power for physical packages and nodes */ + for (i = nr_cpumask_bits-1; i >= 0; i--) { + if (!cpumask_test_cpu(i, cpu_map)) + continue; + + for (sd = *per_cpu_ptr(d.sd, i); sd; sd = sd->parent) { + claim_allocations(i, sd); + init_sched_groups_power(i, sd); + } } -#endif /* Attach the domains */ + rcu_read_lock(); for_each_cpu(i, cpu_map) { -#ifdef CONFIG_SCHED_SMT - sd = &per_cpu(cpu_domains, i).sd; -#elif defined(CONFIG_SCHED_MC) - sd = &per_cpu(core_domains, i).sd; -#elif defined(CONFIG_SCHED_BOOK) - sd = &per_cpu(book_domains, i).sd; -#else - sd = &per_cpu(phys_domains, i).sd; -#endif + sd = *per_cpu_ptr(d.sd, i); cpu_attach_domain(sd, d.rd, i); } + rcu_read_unlock(); - d.sched_group_nodes = NULL; /* don't free this we still need it */ - __free_domain_allocs(&d, sa_tmpmask, cpu_map); - return 0; - + ret = 0; error: __free_domain_allocs(&d, alloc_state, cpu_map); - return -ENOMEM; -} - -static int build_sched_domains(const struct cpumask *cpu_map) -{ - return __build_sched_domains(cpu_map, NULL); + return ret; } static cpumask_var_t *doms_cur; /* current sched domains */ @@ -7670,7 +7362,7 @@ void free_sched_domains(cpumask_var_t doms[], unsigned int ndoms) * For now this just excludes isolated cpus, but could be used to * exclude other special cases in the future. */ -static int arch_init_sched_domains(const struct cpumask *cpu_map) +static int init_sched_domains(const struct cpumask *cpu_map) { int err; @@ -7681,32 +7373,24 @@ static int arch_init_sched_domains(const struct cpumask *cpu_map) doms_cur = &fallback_doms; cpumask_andnot(doms_cur[0], cpu_map, cpu_isolated_map); dattr_cur = NULL; - err = build_sched_domains(doms_cur[0]); + err = build_sched_domains(doms_cur[0], NULL); register_sched_domain_sysctl(); return err; } -static void arch_destroy_sched_domains(const struct cpumask *cpu_map, - struct cpumask *tmpmask) -{ - free_sched_groups(cpu_map, tmpmask); -} - /* * Detach sched domains from a group of cpus specified in cpu_map * These cpus will now be attached to the NULL domain */ static void detach_destroy_domains(const struct cpumask *cpu_map) { - /* Save because hotplug lock held. */ - static DECLARE_BITMAP(tmpmask, CONFIG_NR_CPUS); int i; + rcu_read_lock(); for_each_cpu(i, cpu_map) cpu_attach_domain(NULL, &def_root_domain, i); - synchronize_sched(); - arch_destroy_sched_domains(cpu_map, to_cpumask(tmpmask)); + rcu_read_unlock(); } /* handle null as "default" */ @@ -7795,8 +7479,7 @@ match1: goto match2; } /* no match - add a new doms_new */ - __build_sched_domains(doms_new[i], - dattr_new ? dattr_new + i : NULL); + build_sched_domains(doms_new[i], dattr_new ? dattr_new + i : NULL); match2: ; } @@ -7815,7 +7498,7 @@ match2: } #if defined(CONFIG_SCHED_MC) || defined(CONFIG_SCHED_SMT) -static void arch_reinit_sched_domains(void) +static void reinit_sched_domains(void) { get_online_cpus(); @@ -7848,7 +7531,7 @@ static ssize_t sched_power_savings_store(const char *buf, size_t count, int smt) else sched_mc_power_savings = level; - arch_reinit_sched_domains(); + reinit_sched_domains(); return count; } @@ -7967,14 +7650,9 @@ void __init sched_init_smp(void) alloc_cpumask_var(&non_isolated_cpus, GFP_KERNEL); alloc_cpumask_var(&fallback_doms, GFP_KERNEL); -#if defined(CONFIG_NUMA) - sched_group_nodes_bycpu = kzalloc(nr_cpu_ids * sizeof(void **), - GFP_KERNEL); - BUG_ON(sched_group_nodes_bycpu == NULL); -#endif get_online_cpus(); mutex_lock(&sched_domains_mutex); - arch_init_sched_domains(cpu_active_mask); + init_sched_domains(cpu_active_mask); cpumask_andnot(non_isolated_cpus, cpu_possible_mask, cpu_isolated_map); if (cpumask_empty(non_isolated_cpus)) cpumask_set_cpu(smp_processor_id(), non_isolated_cpus); @@ -8281,6 +7959,7 @@ void __init sched_init(void) /* Allocate the nohz_cpu_mask if CONFIG_CPUMASK_OFFSTACK */ zalloc_cpumask_var(&nohz_cpu_mask, GFP_NOWAIT); #ifdef CONFIG_SMP + zalloc_cpumask_var(&sched_domains_tmpmask, GFP_NOWAIT); #ifdef CONFIG_NO_HZ zalloc_cpumask_var(&nohz.idle_cpus_mask, GFP_NOWAIT); alloc_cpumask_var(&nohz.grp_idle_mask, GFP_NOWAIT); @@ -8340,7 +8019,7 @@ static void normalize_task(struct rq *rq, struct task_struct *p) int old_prio = p->prio; int on_rq; - on_rq = p->se.on_rq; + on_rq = p->on_rq; if (on_rq) deactivate_task(rq, p, 0); __setscheduler(rq, p, SCHED_NORMAL, 0); @@ -8553,7 +8232,6 @@ int alloc_rt_sched_group(struct task_group *tg, struct task_group *parent) { struct rt_rq *rt_rq; struct sched_rt_entity *rt_se; - struct rq *rq; int i; tg->rt_rq = kzalloc(sizeof(rt_rq) * nr_cpu_ids, GFP_KERNEL); @@ -8567,8 +8245,6 @@ int alloc_rt_sched_group(struct task_group *tg, struct task_group *parent) ktime_to_ns(def_rt_bandwidth.rt_period), 0); for_each_possible_cpu(i) { - rq = cpu_rq(i); - rt_rq = kzalloc_node(sizeof(struct rt_rq), GFP_KERNEL, cpu_to_node(i)); if (!rt_rq) @@ -8683,7 +8359,7 @@ void sched_move_task(struct task_struct *tsk) rq = task_rq_lock(tsk, &flags); running = task_current(rq, tsk); - on_rq = tsk->se.on_rq; + on_rq = tsk->on_rq; if (on_rq) dequeue_task(rq, tsk, 0); @@ -8702,7 +8378,7 @@ void sched_move_task(struct task_struct *tsk) if (on_rq) enqueue_task(rq, tsk, 0); - task_rq_unlock(rq, &flags); + task_rq_unlock(rq, tsk, &flags); } #endif /* CONFIG_CGROUP_SCHED */ diff --git a/kernel/sched_debug.c b/kernel/sched_debug.c index 7bacd83a415..a6710a112b4 100644 --- a/kernel/sched_debug.c +++ b/kernel/sched_debug.c @@ -152,7 +152,7 @@ static void print_rq(struct seq_file *m, struct rq *rq, int rq_cpu) read_lock_irqsave(&tasklist_lock, flags); do_each_thread(g, p) { - if (!p->se.on_rq || task_cpu(p) != rq_cpu) + if (!p->on_rq || task_cpu(p) != rq_cpu) continue; print_task(m, rq, p); @@ -296,9 +296,6 @@ static void print_cpu(struct seq_file *m, int cpu) P(ttwu_count); P(ttwu_local); - SEQ_printf(m, " .%-30s: %d\n", "bkl_count", - rq->rq_sched_info.bkl_count); - #undef P #undef P64 #endif @@ -441,7 +438,6 @@ void proc_sched_show_task(struct task_struct *p, struct seq_file *m) P(se.statistics.wait_count); PN(se.statistics.iowait_sum); P(se.statistics.iowait_count); - P(sched_info.bkl_count); P(se.nr_migrations); P(se.statistics.nr_migrations_cold); P(se.statistics.nr_failed_migrations_affine); diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index 6fa833ab2cb..37f22626225 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -358,6 +358,10 @@ static void update_min_vruntime(struct cfs_rq *cfs_rq) } cfs_rq->min_vruntime = max_vruntime(cfs_rq->min_vruntime, vruntime); +#ifndef CONFIG_64BIT + smp_wmb(); + cfs_rq->min_vruntime_copy = cfs_rq->min_vruntime; +#endif } /* @@ -1340,6 +1344,8 @@ enqueue_task_fair(struct rq *rq, struct task_struct *p, int flags) hrtick_update(rq); } +static void set_next_buddy(struct sched_entity *se); + /* * The dequeue_task method is called before nr_running is * decreased. We remove the task from the rbtree and @@ -1349,14 +1355,22 @@ static void dequeue_task_fair(struct rq *rq, struct task_struct *p, int flags) { struct cfs_rq *cfs_rq; struct sched_entity *se = &p->se; + int task_sleep = flags & DEQUEUE_SLEEP; for_each_sched_entity(se) { cfs_rq = cfs_rq_of(se); dequeue_entity(cfs_rq, se, flags); /* Don't dequeue parent if it has other entities besides us */ - if (cfs_rq->load.weight) + if (cfs_rq->load.weight) { + /* + * Bias pick_next to pick a task from this cfs_rq, as + * p is sleeping when it is within its sched_slice. + */ + if (task_sleep && parent_entity(se)) + set_next_buddy(parent_entity(se)); break; + } flags |= DEQUEUE_SLEEP; } @@ -1372,12 +1386,25 @@ static void dequeue_task_fair(struct rq *rq, struct task_struct *p, int flags) #ifdef CONFIG_SMP -static void task_waking_fair(struct rq *rq, struct task_struct *p) +static void task_waking_fair(struct task_struct *p) { struct sched_entity *se = &p->se; struct cfs_rq *cfs_rq = cfs_rq_of(se); + u64 min_vruntime; - se->vruntime -= cfs_rq->min_vruntime; +#ifndef CONFIG_64BIT + u64 min_vruntime_copy; + + do { + min_vruntime_copy = cfs_rq->min_vruntime_copy; + smp_rmb(); + min_vruntime = cfs_rq->min_vruntime; + } while (min_vruntime != min_vruntime_copy); +#else + min_vruntime = cfs_rq->min_vruntime; +#endif + + se->vruntime -= min_vruntime; } #ifdef CONFIG_FAIR_GROUP_SCHED @@ -1622,6 +1649,7 @@ static int select_idle_sibling(struct task_struct *p, int target) /* * Otherwise, iterate the domains and find an elegible idle cpu. */ + rcu_read_lock(); for_each_domain(target, sd) { if (!(sd->flags & SD_SHARE_PKG_RESOURCES)) break; @@ -1641,6 +1669,7 @@ static int select_idle_sibling(struct task_struct *p, int target) cpumask_test_cpu(prev_cpu, sched_domain_span(sd))) break; } + rcu_read_unlock(); return target; } @@ -1657,7 +1686,7 @@ static int select_idle_sibling(struct task_struct *p, int target) * preempt must be disabled. */ static int -select_task_rq_fair(struct rq *rq, struct task_struct *p, int sd_flag, int wake_flags) +select_task_rq_fair(struct task_struct *p, int sd_flag, int wake_flags) { struct sched_domain *tmp, *affine_sd = NULL, *sd = NULL; int cpu = smp_processor_id(); @@ -1673,6 +1702,7 @@ select_task_rq_fair(struct rq *rq, struct task_struct *p, int sd_flag, int wake_ new_cpu = prev_cpu; } + rcu_read_lock(); for_each_domain(cpu, tmp) { if (!(tmp->flags & SD_LOAD_BALANCE)) continue; @@ -1723,9 +1753,10 @@ select_task_rq_fair(struct rq *rq, struct task_struct *p, int sd_flag, int wake_ if (affine_sd) { if (cpu == prev_cpu || wake_affine(affine_sd, p, sync)) - return select_idle_sibling(p, cpu); - else - return select_idle_sibling(p, prev_cpu); + prev_cpu = cpu; + + new_cpu = select_idle_sibling(p, prev_cpu); + goto unlock; } while (sd) { @@ -1766,6 +1797,8 @@ select_task_rq_fair(struct rq *rq, struct task_struct *p, int sd_flag, int wake_ } /* while loop will break here if sd == NULL */ } +unlock: + rcu_read_unlock(); return new_cpu; } @@ -1789,10 +1822,7 @@ wakeup_gran(struct sched_entity *curr, struct sched_entity *se) * This is especially important for buddies when the leftmost * task is higher priority than the buddy. */ - if (unlikely(se->load.weight != NICE_0_LOAD)) - gran = calc_delta_fair(gran, se); - - return gran; + return calc_delta_fair(gran, se); } /* @@ -1826,26 +1856,26 @@ wakeup_preempt_entity(struct sched_entity *curr, struct sched_entity *se) static void set_last_buddy(struct sched_entity *se) { - if (likely(task_of(se)->policy != SCHED_IDLE)) { - for_each_sched_entity(se) - cfs_rq_of(se)->last = se; - } + if (entity_is_task(se) && unlikely(task_of(se)->policy == SCHED_IDLE)) + return; + + for_each_sched_entity(se) + cfs_rq_of(se)->last = se; } static void set_next_buddy(struct sched_entity *se) { - if (likely(task_of(se)->policy != SCHED_IDLE)) { - for_each_sched_entity(se) - cfs_rq_of(se)->next = se; - } + if (entity_is_task(se) && unlikely(task_of(se)->policy == SCHED_IDLE)) + return; + + for_each_sched_entity(se) + cfs_rq_of(se)->next = se; } static void set_skip_buddy(struct sched_entity *se) { - if (likely(task_of(se)->policy != SCHED_IDLE)) { - for_each_sched_entity(se) - cfs_rq_of(se)->skip = se; - } + for_each_sched_entity(se) + cfs_rq_of(se)->skip = se; } /* @@ -1857,12 +1887,15 @@ static void check_preempt_wakeup(struct rq *rq, struct task_struct *p, int wake_ struct sched_entity *se = &curr->se, *pse = &p->se; struct cfs_rq *cfs_rq = task_cfs_rq(curr); int scale = cfs_rq->nr_running >= sched_nr_latency; + int next_buddy_marked = 0; if (unlikely(se == pse)) return; - if (sched_feat(NEXT_BUDDY) && scale && !(wake_flags & WF_FORK)) + if (sched_feat(NEXT_BUDDY) && scale && !(wake_flags & WF_FORK)) { set_next_buddy(pse); + next_buddy_marked = 1; + } /* * We can come here with TIF_NEED_RESCHED already set from new task @@ -1890,8 +1923,15 @@ static void check_preempt_wakeup(struct rq *rq, struct task_struct *p, int wake_ update_curr(cfs_rq); find_matching_se(&se, &pse); BUG_ON(!pse); - if (wakeup_preempt_entity(se, pse) == 1) + if (wakeup_preempt_entity(se, pse) == 1) { + /* + * Bias pick_next to pick the sched entity that is + * triggering this preemption. + */ + if (!next_buddy_marked) + set_next_buddy(pse); goto preempt; + } return; @@ -2102,7 +2142,7 @@ static unsigned long balance_tasks(struct rq *this_rq, int this_cpu, struct rq *busiest, unsigned long max_load_move, struct sched_domain *sd, enum cpu_idle_type idle, int *all_pinned, - int *this_best_prio, struct cfs_rq *busiest_cfs_rq) + struct cfs_rq *busiest_cfs_rq) { int loops = 0, pulled = 0; long rem_load_move = max_load_move; @@ -2140,9 +2180,6 @@ balance_tasks(struct rq *this_rq, int this_cpu, struct rq *busiest, */ if (rem_load_move <= 0) break; - - if (p->prio < *this_best_prio) - *this_best_prio = p->prio; } out: /* @@ -2202,7 +2239,7 @@ static unsigned long load_balance_fair(struct rq *this_rq, int this_cpu, struct rq *busiest, unsigned long max_load_move, struct sched_domain *sd, enum cpu_idle_type idle, - int *all_pinned, int *this_best_prio) + int *all_pinned) { long rem_load_move = max_load_move; int busiest_cpu = cpu_of(busiest); @@ -2227,7 +2264,7 @@ load_balance_fair(struct rq *this_rq, int this_cpu, struct rq *busiest, rem_load = div_u64(rem_load, busiest_h_load + 1); moved_load = balance_tasks(this_rq, this_cpu, busiest, - rem_load, sd, idle, all_pinned, this_best_prio, + rem_load, sd, idle, all_pinned, busiest_cfs_rq); if (!moved_load) @@ -2253,11 +2290,11 @@ static unsigned long load_balance_fair(struct rq *this_rq, int this_cpu, struct rq *busiest, unsigned long max_load_move, struct sched_domain *sd, enum cpu_idle_type idle, - int *all_pinned, int *this_best_prio) + int *all_pinned) { return balance_tasks(this_rq, this_cpu, busiest, max_load_move, sd, idle, all_pinned, - this_best_prio, &busiest->cfs); + &busiest->cfs); } #endif @@ -2274,12 +2311,11 @@ static int move_tasks(struct rq *this_rq, int this_cpu, struct rq *busiest, int *all_pinned) { unsigned long total_load_moved = 0, load_moved; - int this_best_prio = this_rq->curr->prio; do { load_moved = load_balance_fair(this_rq, this_cpu, busiest, max_load_move - total_load_moved, - sd, idle, all_pinned, &this_best_prio); + sd, idle, all_pinned); total_load_moved += load_moved; @@ -2648,7 +2684,7 @@ fix_small_capacity(struct sched_domain *sd, struct sched_group *group) /* * Only siblings can have significantly less than SCHED_LOAD_SCALE */ - if (sd->level != SD_LV_SIBLING) + if (!(sd->flags & SD_SHARE_CPUPOWER)) return 0; /* @@ -3465,6 +3501,7 @@ static void idle_balance(int this_cpu, struct rq *this_rq) raw_spin_unlock(&this_rq->lock); update_shares(this_cpu); + rcu_read_lock(); for_each_domain(this_cpu, sd) { unsigned long interval; int balance = 1; @@ -3486,6 +3523,7 @@ static void idle_balance(int this_cpu, struct rq *this_rq) break; } } + rcu_read_unlock(); raw_spin_lock(&this_rq->lock); @@ -3534,6 +3572,7 @@ static int active_load_balance_cpu_stop(void *data) double_lock_balance(busiest_rq, target_rq); /* Search for an sd spanning us and the target CPU. */ + rcu_read_lock(); for_each_domain(target_cpu, sd) { if ((sd->flags & SD_LOAD_BALANCE) && cpumask_test_cpu(busiest_cpu, sched_domain_span(sd))) @@ -3549,6 +3588,7 @@ static int active_load_balance_cpu_stop(void *data) else schedstat_inc(sd, alb_failed); } + rcu_read_unlock(); double_unlock_balance(busiest_rq, target_rq); out_unlock: busiest_rq->active_balance = 0; @@ -3675,6 +3715,7 @@ static int find_new_ilb(int cpu) { struct sched_domain *sd; struct sched_group *ilb_group; + int ilb = nr_cpu_ids; /* * Have idle load balancer selection from semi-idle packages only @@ -3690,20 +3731,25 @@ static int find_new_ilb(int cpu) if (cpumask_weight(nohz.idle_cpus_mask) < 2) goto out_done; + rcu_read_lock(); for_each_flag_domain(cpu, sd, SD_POWERSAVINGS_BALANCE) { ilb_group = sd->groups; do { - if (is_semi_idle_group(ilb_group)) - return cpumask_first(nohz.grp_idle_mask); + if (is_semi_idle_group(ilb_group)) { + ilb = cpumask_first(nohz.grp_idle_mask); + goto unlock; + } ilb_group = ilb_group->next; } while (ilb_group != sd->groups); } +unlock: + rcu_read_unlock(); out_done: - return nr_cpu_ids; + return ilb; } #else /* (CONFIG_SCHED_MC || CONFIG_SCHED_SMT) */ static inline int find_new_ilb(int call_cpu) @@ -3848,6 +3894,7 @@ static void rebalance_domains(int cpu, enum cpu_idle_type idle) update_shares(cpu); + rcu_read_lock(); for_each_domain(cpu, sd) { if (!(sd->flags & SD_LOAD_BALANCE)) continue; @@ -3893,6 +3940,7 @@ out: if (!balance) break; } + rcu_read_unlock(); /* * next_balance will be updated only when there is a need. diff --git a/kernel/sched_features.h b/kernel/sched_features.h index 68e69acc29b..be40f7371ee 100644 --- a/kernel/sched_features.h +++ b/kernel/sched_features.h @@ -64,3 +64,9 @@ SCHED_FEAT(OWNER_SPIN, 1) * Decrement CPU power based on irq activity */ SCHED_FEAT(NONIRQ_POWER, 1) + +/* + * Queue remote wakeups on the target CPU and process them + * using the scheduler IPI. Reduces rq->lock contention/bounces. + */ +SCHED_FEAT(TTWU_QUEUE, 1) diff --git a/kernel/sched_idletask.c b/kernel/sched_idletask.c index a776a639642..0a51882534e 100644 --- a/kernel/sched_idletask.c +++ b/kernel/sched_idletask.c @@ -7,7 +7,7 @@ #ifdef CONFIG_SMP static int -select_task_rq_idle(struct rq *rq, struct task_struct *p, int sd_flag, int flags) +select_task_rq_idle(struct task_struct *p, int sd_flag, int flags) { return task_cpu(p); /* IDLE tasks as never migrated */ } diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c index e7cebdc65f8..64b2a37c07d 100644 --- a/kernel/sched_rt.c +++ b/kernel/sched_rt.c @@ -183,6 +183,14 @@ static inline u64 sched_rt_period(struct rt_rq *rt_rq) return ktime_to_ns(rt_rq->tg->rt_bandwidth.rt_period); } +typedef struct task_group *rt_rq_iter_t; + +#define for_each_rt_rq(rt_rq, iter, rq) \ + for (iter = list_entry_rcu(task_groups.next, typeof(*iter), list); \ + (&iter->list != &task_groups) && \ + (rt_rq = iter->rt_rq[cpu_of(rq)]); \ + iter = list_entry_rcu(iter->list.next, typeof(*iter), list)) + static inline void list_add_leaf_rt_rq(struct rt_rq *rt_rq) { list_add_rcu(&rt_rq->leaf_rt_rq_list, @@ -288,6 +296,11 @@ static inline u64 sched_rt_period(struct rt_rq *rt_rq) return ktime_to_ns(def_rt_bandwidth.rt_period); } +typedef struct rt_rq *rt_rq_iter_t; + +#define for_each_rt_rq(rt_rq, iter, rq) \ + for ((void) iter, rt_rq = &rq->rt; rt_rq; rt_rq = NULL) + static inline void list_add_leaf_rt_rq(struct rt_rq *rt_rq) { } @@ -402,12 +415,13 @@ next: static void __disable_runtime(struct rq *rq) { struct root_domain *rd = rq->rd; + rt_rq_iter_t iter; struct rt_rq *rt_rq; if (unlikely(!scheduler_running)) return; - for_each_leaf_rt_rq(rt_rq, rq) { + for_each_rt_rq(rt_rq, iter, rq) { struct rt_bandwidth *rt_b = sched_rt_bandwidth(rt_rq); s64 want; int i; @@ -487,6 +501,7 @@ static void disable_runtime(struct rq *rq) static void __enable_runtime(struct rq *rq) { + rt_rq_iter_t iter; struct rt_rq *rt_rq; if (unlikely(!scheduler_running)) @@ -495,7 +510,7 @@ static void __enable_runtime(struct rq *rq) /* * Reset each runqueue's bandwidth settings */ - for_each_leaf_rt_rq(rt_rq, rq) { + for_each_rt_rq(rt_rq, iter, rq) { struct rt_bandwidth *rt_b = sched_rt_bandwidth(rt_rq); raw_spin_lock(&rt_b->rt_runtime_lock); @@ -562,6 +577,13 @@ static int do_sched_rt_period_timer(struct rt_bandwidth *rt_b, int overrun) if (rt_rq->rt_throttled && rt_rq->rt_time < runtime) { rt_rq->rt_throttled = 0; enqueue = 1; + + /* + * Force a clock update if the CPU was idle, + * lest wakeup -> unthrottle time accumulate. + */ + if (rt_rq->rt_nr_running && rq->curr == rq->idle) + rq->skip_clock_update = -1; } if (rt_rq->rt_time || rt_rq->rt_nr_running) idle = 0; @@ -977,13 +999,23 @@ static void yield_task_rt(struct rq *rq) static int find_lowest_rq(struct task_struct *task); static int -select_task_rq_rt(struct rq *rq, struct task_struct *p, int sd_flag, int flags) +select_task_rq_rt(struct task_struct *p, int sd_flag, int flags) { + struct task_struct *curr; + struct rq *rq; + int cpu; + if (sd_flag != SD_BALANCE_WAKE) return smp_processor_id(); + cpu = task_cpu(p); + rq = cpu_rq(cpu); + + rcu_read_lock(); + curr = ACCESS_ONCE(rq->curr); /* unlocked access */ + /* - * If the current task is an RT task, then + * If the current task on @p's runqueue is an RT task, then * try to see if we can wake this RT task up on another * runqueue. Otherwise simply start this RT task * on its current runqueue. @@ -997,21 +1029,25 @@ select_task_rq_rt(struct rq *rq, struct task_struct *p, int sd_flag, int flags) * lock? * * For equal prio tasks, we just let the scheduler sort it out. + * + * Otherwise, just let it ride on the affined RQ and the + * post-schedule router will push the preempted task away + * + * This test is optimistic, if we get it wrong the load-balancer + * will have to sort it out. */ - if (unlikely(rt_task(rq->curr)) && - (rq->curr->rt.nr_cpus_allowed < 2 || - rq->curr->prio < p->prio) && + if (curr && unlikely(rt_task(curr)) && + (curr->rt.nr_cpus_allowed < 2 || + curr->prio < p->prio) && (p->rt.nr_cpus_allowed > 1)) { - int cpu = find_lowest_rq(p); + int target = find_lowest_rq(p); - return (cpu == -1) ? task_cpu(p) : cpu; + if (target != -1) + cpu = target; } + rcu_read_unlock(); - /* - * Otherwise, just let it ride on the affined RQ and the - * post-schedule router will push the preempted task away - */ - return task_cpu(p); + return cpu; } static void check_preempt_equal_prio(struct rq *rq, struct task_struct *p) @@ -1136,7 +1172,7 @@ static void put_prev_task_rt(struct rq *rq, struct task_struct *p) * The previous task needs to be made eligible for pushing * if it is still active */ - if (p->se.on_rq && p->rt.nr_cpus_allowed > 1) + if (on_rt_rq(&p->rt) && p->rt.nr_cpus_allowed > 1) enqueue_pushable_task(rq, p); } @@ -1287,7 +1323,7 @@ static struct rq *find_lock_lowest_rq(struct task_struct *task, struct rq *rq) !cpumask_test_cpu(lowest_rq->cpu, &task->cpus_allowed) || task_running(rq, task) || - !task->se.on_rq)) { + !task->on_rq)) { raw_spin_unlock(&lowest_rq->lock); lowest_rq = NULL; @@ -1321,7 +1357,7 @@ static struct task_struct *pick_next_pushable_task(struct rq *rq) BUG_ON(task_current(rq, p)); BUG_ON(p->rt.nr_cpus_allowed <= 1); - BUG_ON(!p->se.on_rq); + BUG_ON(!p->on_rq); BUG_ON(!rt_task(p)); return p; @@ -1467,7 +1503,7 @@ static int pull_rt_task(struct rq *this_rq) */ if (p && (p->prio < this_rq->rt.highest_prio.curr)) { WARN_ON(p == src_rq->curr); - WARN_ON(!p->se.on_rq); + WARN_ON(!p->on_rq); /* * There's a chance that p is higher in priority @@ -1538,7 +1574,7 @@ static void set_cpus_allowed_rt(struct task_struct *p, * Update the migration status of the RQ if we have an RT task * which is running AND changing its weight value. */ - if (p->se.on_rq && (weight != p->rt.nr_cpus_allowed)) { + if (p->on_rq && (weight != p->rt.nr_cpus_allowed)) { struct rq *rq = task_rq(p); if (!task_current(rq, p)) { @@ -1608,7 +1644,7 @@ static void switched_from_rt(struct rq *rq, struct task_struct *p) * we may need to handle the pulling of RT tasks * now. */ - if (p->se.on_rq && !rq->rt.rt_nr_running) + if (p->on_rq && !rq->rt.rt_nr_running) pull_rt_task(rq); } @@ -1638,7 +1674,7 @@ static void switched_to_rt(struct rq *rq, struct task_struct *p) * If that current running task is also an RT task * then see if we can move to another run queue. */ - if (p->se.on_rq && rq->curr != p) { + if (p->on_rq && rq->curr != p) { #ifdef CONFIG_SMP if (rq->rt.overloaded && push_rt_task(rq) && /* Don't resched if we changed runqueues */ @@ -1657,7 +1693,7 @@ static void switched_to_rt(struct rq *rq, struct task_struct *p) static void prio_changed_rt(struct rq *rq, struct task_struct *p, int oldprio) { - if (!p->se.on_rq) + if (!p->on_rq) return; if (rq->curr == p) { @@ -1796,10 +1832,11 @@ extern void print_rt_rq(struct seq_file *m, int cpu, struct rt_rq *rt_rq); static void print_rt_stats(struct seq_file *m, int cpu) { + rt_rq_iter_t iter; struct rt_rq *rt_rq; rcu_read_lock(); - for_each_leaf_rt_rq(rt_rq, cpu_rq(cpu)) + for_each_rt_rq(rt_rq, iter, cpu_rq(cpu)) print_rt_rq(m, cpu, rt_rq); rcu_read_unlock(); } diff --git a/kernel/sched_stoptask.c b/kernel/sched_stoptask.c index 1ba2bd40fda..6f437632afa 100644 --- a/kernel/sched_stoptask.c +++ b/kernel/sched_stoptask.c @@ -9,8 +9,7 @@ #ifdef CONFIG_SMP static int -select_task_rq_stop(struct rq *rq, struct task_struct *p, - int sd_flag, int flags) +select_task_rq_stop(struct task_struct *p, int sd_flag, int flags) { return task_cpu(p); /* stop tasks as never migrate */ } @@ -26,7 +25,7 @@ static struct task_struct *pick_next_task_stop(struct rq *rq) { struct task_struct *stop = rq->stop; - if (stop && stop->se.on_rq) + if (stop && stop->on_rq) return stop; return NULL; diff --git a/kernel/sys.c b/kernel/sys.c index af468edf096..f0c10385f30 100644 --- a/kernel/sys.c +++ b/kernel/sys.c @@ -315,7 +315,6 @@ void kernel_restart_prepare(char *cmd) blocking_notifier_call_chain(&reboot_notifier_list, SYS_RESTART, cmd); system_state = SYSTEM_RESTART; device_shutdown(); - sysdev_shutdown(); syscore_shutdown(); } @@ -354,7 +353,6 @@ static void kernel_shutdown_prepare(enum system_states state) void kernel_halt(void) { kernel_shutdown_prepare(SYSTEM_HALT); - sysdev_shutdown(); syscore_shutdown(); printk(KERN_EMERG "System halted.\n"); kmsg_dump(KMSG_DUMP_HALT); @@ -374,7 +372,6 @@ void kernel_power_off(void) if (pm_power_off_prepare) pm_power_off_prepare(); disable_nonboot_cpus(); - sysdev_shutdown(); syscore_shutdown(); printk(KERN_EMERG "Power down.\n"); kmsg_dump(KMSG_DUMP_POWEROFF); diff --git a/kernel/time/Makefile b/kernel/time/Makefile index b0425991e9a..e2fd74b8e8c 100644 --- a/kernel/time/Makefile +++ b/kernel/time/Makefile @@ -1,5 +1,5 @@ obj-y += timekeeping.o ntp.o clocksource.o jiffies.o timer_list.o timecompare.o -obj-y += timeconv.o posix-clock.o +obj-y += timeconv.o posix-clock.o alarmtimer.o obj-$(CONFIG_GENERIC_CLOCKEVENTS_BUILD) += clockevents.o obj-$(CONFIG_GENERIC_CLOCKEVENTS) += tick-common.o diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c new file mode 100644 index 00000000000..9265014cb4d --- /dev/null +++ b/kernel/time/alarmtimer.c @@ -0,0 +1,694 @@ +/* + * Alarmtimer interface + * + * This interface provides a timer which is similarto hrtimers, + * but triggers a RTC alarm if the box is suspend. + * + * This interface is influenced by the Android RTC Alarm timer + * interface. + * + * Copyright (C) 2010 IBM Corperation + * + * Author: John Stultz <john.stultz@linaro.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/time.h> +#include <linux/hrtimer.h> +#include <linux/timerqueue.h> +#include <linux/rtc.h> +#include <linux/alarmtimer.h> +#include <linux/mutex.h> +#include <linux/platform_device.h> +#include <linux/posix-timers.h> +#include <linux/workqueue.h> +#include <linux/freezer.h> + +/** + * struct alarm_base - Alarm timer bases + * @lock: Lock for syncrhonized access to the base + * @timerqueue: Timerqueue head managing the list of events + * @timer: hrtimer used to schedule events while running + * @gettime: Function to read the time correlating to the base + * @base_clockid: clockid for the base + */ +static struct alarm_base { + spinlock_t lock; + struct timerqueue_head timerqueue; + struct hrtimer timer; + ktime_t (*gettime)(void); + clockid_t base_clockid; +} alarm_bases[ALARM_NUMTYPE]; + +#ifdef CONFIG_RTC_CLASS +/* rtc timer and device for setting alarm wakeups at suspend */ +static struct rtc_timer rtctimer; +static struct rtc_device *rtcdev; +#endif + +/* freezer delta & lock used to handle clock_nanosleep triggered wakeups */ +static ktime_t freezer_delta; +static DEFINE_SPINLOCK(freezer_delta_lock); + + +/** + * alarmtimer_enqueue - Adds an alarm timer to an alarm_base timerqueue + * @base: pointer to the base where the timer is being run + * @alarm: pointer to alarm being enqueued. + * + * Adds alarm to a alarm_base timerqueue and if necessary sets + * an hrtimer to run. + * + * Must hold base->lock when calling. + */ +static void alarmtimer_enqueue(struct alarm_base *base, struct alarm *alarm) +{ + timerqueue_add(&base->timerqueue, &alarm->node); + if (&alarm->node == timerqueue_getnext(&base->timerqueue)) { + hrtimer_try_to_cancel(&base->timer); + hrtimer_start(&base->timer, alarm->node.expires, + HRTIMER_MODE_ABS); + } +} + +/** + * alarmtimer_remove - Removes an alarm timer from an alarm_base timerqueue + * @base: pointer to the base where the timer is running + * @alarm: pointer to alarm being removed + * + * Removes alarm to a alarm_base timerqueue and if necessary sets + * a new timer to run. + * + * Must hold base->lock when calling. + */ +static void alarmtimer_remove(struct alarm_base *base, struct alarm *alarm) +{ + struct timerqueue_node *next = timerqueue_getnext(&base->timerqueue); + + timerqueue_del(&base->timerqueue, &alarm->node); + if (next == &alarm->node) { + hrtimer_try_to_cancel(&base->timer); + next = timerqueue_getnext(&base->timerqueue); + if (!next) + return; + hrtimer_start(&base->timer, next->expires, HRTIMER_MODE_ABS); + } +} + + +/** + * alarmtimer_fired - Handles alarm hrtimer being fired. + * @timer: pointer to hrtimer being run + * + * When a alarm timer fires, this runs through the timerqueue to + * see which alarms expired, and runs those. If there are more alarm + * timers queued for the future, we set the hrtimer to fire when + * when the next future alarm timer expires. + */ +static enum hrtimer_restart alarmtimer_fired(struct hrtimer *timer) +{ + struct alarm_base *base = container_of(timer, struct alarm_base, timer); + struct timerqueue_node *next; + unsigned long flags; + ktime_t now; + int ret = HRTIMER_NORESTART; + + spin_lock_irqsave(&base->lock, flags); + now = base->gettime(); + while ((next = timerqueue_getnext(&base->timerqueue))) { + struct alarm *alarm; + ktime_t expired = next->expires; + + if (expired.tv64 >= now.tv64) + break; + + alarm = container_of(next, struct alarm, node); + + timerqueue_del(&base->timerqueue, &alarm->node); + alarm->enabled = 0; + /* Re-add periodic timers */ + if (alarm->period.tv64) { + alarm->node.expires = ktime_add(expired, alarm->period); + timerqueue_add(&base->timerqueue, &alarm->node); + alarm->enabled = 1; + } + spin_unlock_irqrestore(&base->lock, flags); + if (alarm->function) + alarm->function(alarm); + spin_lock_irqsave(&base->lock, flags); + } + + if (next) { + hrtimer_set_expires(&base->timer, next->expires); + ret = HRTIMER_RESTART; + } + spin_unlock_irqrestore(&base->lock, flags); + + return ret; + +} + +#ifdef CONFIG_RTC_CLASS +/** + * alarmtimer_suspend - Suspend time callback + * @dev: unused + * @state: unused + * + * When we are going into suspend, we look through the bases + * to see which is the soonest timer to expire. We then + * set an rtc timer to fire that far into the future, which + * will wake us from suspend. + */ +static int alarmtimer_suspend(struct device *dev) +{ + struct rtc_time tm; + ktime_t min, now; + unsigned long flags; + int i; + + spin_lock_irqsave(&freezer_delta_lock, flags); + min = freezer_delta; + freezer_delta = ktime_set(0, 0); + spin_unlock_irqrestore(&freezer_delta_lock, flags); + + /* If we have no rtcdev, just return */ + if (!rtcdev) + return 0; + + /* Find the soonest timer to expire*/ + for (i = 0; i < ALARM_NUMTYPE; i++) { + struct alarm_base *base = &alarm_bases[i]; + struct timerqueue_node *next; + ktime_t delta; + + spin_lock_irqsave(&base->lock, flags); + next = timerqueue_getnext(&base->timerqueue); + spin_unlock_irqrestore(&base->lock, flags); + if (!next) + continue; + delta = ktime_sub(next->expires, base->gettime()); + if (!min.tv64 || (delta.tv64 < min.tv64)) + min = delta; + } + if (min.tv64 == 0) + return 0; + + /* XXX - Should we enforce a minimum sleep time? */ + WARN_ON(min.tv64 < NSEC_PER_SEC); + + /* Setup an rtc timer to fire that far in the future */ + rtc_timer_cancel(rtcdev, &rtctimer); + rtc_read_time(rtcdev, &tm); + now = rtc_tm_to_ktime(tm); + now = ktime_add(now, min); + + rtc_timer_start(rtcdev, &rtctimer, now, ktime_set(0, 0)); + + return 0; +} +#else +static int alarmtimer_suspend(struct device *dev) +{ + return 0; +} +#endif + +static void alarmtimer_freezerset(ktime_t absexp, enum alarmtimer_type type) +{ + ktime_t delta; + unsigned long flags; + struct alarm_base *base = &alarm_bases[type]; + + delta = ktime_sub(absexp, base->gettime()); + + spin_lock_irqsave(&freezer_delta_lock, flags); + if (!freezer_delta.tv64 || (delta.tv64 < freezer_delta.tv64)) + freezer_delta = delta; + spin_unlock_irqrestore(&freezer_delta_lock, flags); +} + + +/** + * alarm_init - Initialize an alarm structure + * @alarm: ptr to alarm to be initialized + * @type: the type of the alarm + * @function: callback that is run when the alarm fires + */ +void alarm_init(struct alarm *alarm, enum alarmtimer_type type, + void (*function)(struct alarm *)) +{ + timerqueue_init(&alarm->node); + alarm->period = ktime_set(0, 0); + alarm->function = function; + alarm->type = type; + alarm->enabled = 0; +} + +/** + * alarm_start - Sets an alarm to fire + * @alarm: ptr to alarm to set + * @start: time to run the alarm + * @period: period at which the alarm will recur + */ +void alarm_start(struct alarm *alarm, ktime_t start, ktime_t period) +{ + struct alarm_base *base = &alarm_bases[alarm->type]; + unsigned long flags; + + spin_lock_irqsave(&base->lock, flags); + if (alarm->enabled) + alarmtimer_remove(base, alarm); + alarm->node.expires = start; + alarm->period = period; + alarmtimer_enqueue(base, alarm); + alarm->enabled = 1; + spin_unlock_irqrestore(&base->lock, flags); +} + +/** + * alarm_cancel - Tries to cancel an alarm timer + * @alarm: ptr to alarm to be canceled + */ +void alarm_cancel(struct alarm *alarm) +{ + struct alarm_base *base = &alarm_bases[alarm->type]; + unsigned long flags; + + spin_lock_irqsave(&base->lock, flags); + if (alarm->enabled) + alarmtimer_remove(base, alarm); + alarm->enabled = 0; + spin_unlock_irqrestore(&base->lock, flags); +} + + +/** + * clock2alarm - helper that converts from clockid to alarmtypes + * @clockid: clockid. + */ +static enum alarmtimer_type clock2alarm(clockid_t clockid) +{ + if (clockid == CLOCK_REALTIME_ALARM) + return ALARM_REALTIME; + if (clockid == CLOCK_BOOTTIME_ALARM) + return ALARM_BOOTTIME; + return -1; +} + +/** + * alarm_handle_timer - Callback for posix timers + * @alarm: alarm that fired + * + * Posix timer callback for expired alarm timers. + */ +static void alarm_handle_timer(struct alarm *alarm) +{ + struct k_itimer *ptr = container_of(alarm, struct k_itimer, + it.alarmtimer); + if (posix_timer_event(ptr, 0) != 0) + ptr->it_overrun++; +} + +/** + * alarm_clock_getres - posix getres interface + * @which_clock: clockid + * @tp: timespec to fill + * + * Returns the granularity of underlying alarm base clock + */ +static int alarm_clock_getres(const clockid_t which_clock, struct timespec *tp) +{ + clockid_t baseid = alarm_bases[clock2alarm(which_clock)].base_clockid; + + return hrtimer_get_res(baseid, tp); +} + +/** + * alarm_clock_get - posix clock_get interface + * @which_clock: clockid + * @tp: timespec to fill. + * + * Provides the underlying alarm base time. + */ +static int alarm_clock_get(clockid_t which_clock, struct timespec *tp) +{ + struct alarm_base *base = &alarm_bases[clock2alarm(which_clock)]; + + *tp = ktime_to_timespec(base->gettime()); + return 0; +} + +/** + * alarm_timer_create - posix timer_create interface + * @new_timer: k_itimer pointer to manage + * + * Initializes the k_itimer structure. + */ +static int alarm_timer_create(struct k_itimer *new_timer) +{ + enum alarmtimer_type type; + struct alarm_base *base; + + if (!capable(CAP_WAKE_ALARM)) + return -EPERM; + + type = clock2alarm(new_timer->it_clock); + base = &alarm_bases[type]; + alarm_init(&new_timer->it.alarmtimer, type, alarm_handle_timer); + return 0; +} + +/** + * alarm_timer_get - posix timer_get interface + * @new_timer: k_itimer pointer + * @cur_setting: itimerspec data to fill + * + * Copies the itimerspec data out from the k_itimer + */ +static void alarm_timer_get(struct k_itimer *timr, + struct itimerspec *cur_setting) +{ + cur_setting->it_interval = + ktime_to_timespec(timr->it.alarmtimer.period); + cur_setting->it_value = + ktime_to_timespec(timr->it.alarmtimer.node.expires); + return; +} + +/** + * alarm_timer_del - posix timer_del interface + * @timr: k_itimer pointer to be deleted + * + * Cancels any programmed alarms for the given timer. + */ +static int alarm_timer_del(struct k_itimer *timr) +{ + alarm_cancel(&timr->it.alarmtimer); + return 0; +} + +/** + * alarm_timer_set - posix timer_set interface + * @timr: k_itimer pointer to be deleted + * @flags: timer flags + * @new_setting: itimerspec to be used + * @old_setting: itimerspec being replaced + * + * Sets the timer to new_setting, and starts the timer. + */ +static int alarm_timer_set(struct k_itimer *timr, int flags, + struct itimerspec *new_setting, + struct itimerspec *old_setting) +{ + /* Save old values */ + old_setting->it_interval = + ktime_to_timespec(timr->it.alarmtimer.period); + old_setting->it_value = + ktime_to_timespec(timr->it.alarmtimer.node.expires); + + /* If the timer was already set, cancel it */ + alarm_cancel(&timr->it.alarmtimer); + + /* start the timer */ + alarm_start(&timr->it.alarmtimer, + timespec_to_ktime(new_setting->it_value), + timespec_to_ktime(new_setting->it_interval)); + return 0; +} + +/** + * alarmtimer_nsleep_wakeup - Wakeup function for alarm_timer_nsleep + * @alarm: ptr to alarm that fired + * + * Wakes up the task that set the alarmtimer + */ +static void alarmtimer_nsleep_wakeup(struct alarm *alarm) +{ + struct task_struct *task = (struct task_struct *)alarm->data; + + alarm->data = NULL; + if (task) + wake_up_process(task); +} + +/** + * alarmtimer_do_nsleep - Internal alarmtimer nsleep implementation + * @alarm: ptr to alarmtimer + * @absexp: absolute expiration time + * + * Sets the alarm timer and sleeps until it is fired or interrupted. + */ +static int alarmtimer_do_nsleep(struct alarm *alarm, ktime_t absexp) +{ + alarm->data = (void *)current; + do { + set_current_state(TASK_INTERRUPTIBLE); + alarm_start(alarm, absexp, ktime_set(0, 0)); + if (likely(alarm->data)) + schedule(); + + alarm_cancel(alarm); + } while (alarm->data && !signal_pending(current)); + + __set_current_state(TASK_RUNNING); + + return (alarm->data == NULL); +} + + +/** + * update_rmtp - Update remaining timespec value + * @exp: expiration time + * @type: timer type + * @rmtp: user pointer to remaining timepsec value + * + * Helper function that fills in rmtp value with time between + * now and the exp value + */ +static int update_rmtp(ktime_t exp, enum alarmtimer_type type, + struct timespec __user *rmtp) +{ + struct timespec rmt; + ktime_t rem; + + rem = ktime_sub(exp, alarm_bases[type].gettime()); + + if (rem.tv64 <= 0) + return 0; + rmt = ktime_to_timespec(rem); + + if (copy_to_user(rmtp, &rmt, sizeof(*rmtp))) + return -EFAULT; + + return 1; + +} + +/** + * alarm_timer_nsleep_restart - restartblock alarmtimer nsleep + * @restart: ptr to restart block + * + * Handles restarted clock_nanosleep calls + */ +static long __sched alarm_timer_nsleep_restart(struct restart_block *restart) +{ + enum alarmtimer_type type = restart->nanosleep.index; + ktime_t exp; + struct timespec __user *rmtp; + struct alarm alarm; + int ret = 0; + + exp.tv64 = restart->nanosleep.expires; + alarm_init(&alarm, type, alarmtimer_nsleep_wakeup); + + if (alarmtimer_do_nsleep(&alarm, exp)) + goto out; + + if (freezing(current)) + alarmtimer_freezerset(exp, type); + + rmtp = restart->nanosleep.rmtp; + if (rmtp) { + ret = update_rmtp(exp, type, rmtp); + if (ret <= 0) + goto out; + } + + + /* The other values in restart are already filled in */ + ret = -ERESTART_RESTARTBLOCK; +out: + return ret; +} + +/** + * alarm_timer_nsleep - alarmtimer nanosleep + * @which_clock: clockid + * @flags: determins abstime or relative + * @tsreq: requested sleep time (abs or rel) + * @rmtp: remaining sleep time saved + * + * Handles clock_nanosleep calls against _ALARM clockids + */ +static int alarm_timer_nsleep(const clockid_t which_clock, int flags, + struct timespec *tsreq, struct timespec __user *rmtp) +{ + enum alarmtimer_type type = clock2alarm(which_clock); + struct alarm alarm; + ktime_t exp; + int ret = 0; + struct restart_block *restart; + + if (!capable(CAP_WAKE_ALARM)) + return -EPERM; + + alarm_init(&alarm, type, alarmtimer_nsleep_wakeup); + + exp = timespec_to_ktime(*tsreq); + /* Convert (if necessary) to absolute time */ + if (flags != TIMER_ABSTIME) { + ktime_t now = alarm_bases[type].gettime(); + exp = ktime_add(now, exp); + } + + if (alarmtimer_do_nsleep(&alarm, exp)) + goto out; + + if (freezing(current)) + alarmtimer_freezerset(exp, type); + + /* abs timers don't set remaining time or restart */ + if (flags == TIMER_ABSTIME) { + ret = -ERESTARTNOHAND; + goto out; + } + + if (rmtp) { + ret = update_rmtp(exp, type, rmtp); + if (ret <= 0) + goto out; + } + + restart = ¤t_thread_info()->restart_block; + restart->fn = alarm_timer_nsleep_restart; + restart->nanosleep.index = type; + restart->nanosleep.expires = exp.tv64; + restart->nanosleep.rmtp = rmtp; + ret = -ERESTART_RESTARTBLOCK; + +out: + return ret; +} + + +/* Suspend hook structures */ +static const struct dev_pm_ops alarmtimer_pm_ops = { + .suspend = alarmtimer_suspend, +}; + +static struct platform_driver alarmtimer_driver = { + .driver = { + .name = "alarmtimer", + .pm = &alarmtimer_pm_ops, + } +}; + +/** + * alarmtimer_init - Initialize alarm timer code + * + * This function initializes the alarm bases and registers + * the posix clock ids. + */ +static int __init alarmtimer_init(void) +{ + int error = 0; + int i; + struct k_clock alarm_clock = { + .clock_getres = alarm_clock_getres, + .clock_get = alarm_clock_get, + .timer_create = alarm_timer_create, + .timer_set = alarm_timer_set, + .timer_del = alarm_timer_del, + .timer_get = alarm_timer_get, + .nsleep = alarm_timer_nsleep, + }; + + posix_timers_register_clock(CLOCK_REALTIME_ALARM, &alarm_clock); + posix_timers_register_clock(CLOCK_BOOTTIME_ALARM, &alarm_clock); + + /* Initialize alarm bases */ + alarm_bases[ALARM_REALTIME].base_clockid = CLOCK_REALTIME; + alarm_bases[ALARM_REALTIME].gettime = &ktime_get_real; + alarm_bases[ALARM_BOOTTIME].base_clockid = CLOCK_BOOTTIME; + alarm_bases[ALARM_BOOTTIME].gettime = &ktime_get_boottime; + for (i = 0; i < ALARM_NUMTYPE; i++) { + timerqueue_init_head(&alarm_bases[i].timerqueue); + spin_lock_init(&alarm_bases[i].lock); + hrtimer_init(&alarm_bases[i].timer, + alarm_bases[i].base_clockid, + HRTIMER_MODE_ABS); + alarm_bases[i].timer.function = alarmtimer_fired; + } + error = platform_driver_register(&alarmtimer_driver); + platform_device_register_simple("alarmtimer", -1, NULL, 0); + + return error; +} +device_initcall(alarmtimer_init); + +#ifdef CONFIG_RTC_CLASS +/** + * has_wakealarm - check rtc device has wakealarm ability + * @dev: current device + * @name_ptr: name to be returned + * + * This helper function checks to see if the rtc device can wake + * from suspend. + */ +static int __init has_wakealarm(struct device *dev, void *name_ptr) +{ + struct rtc_device *candidate = to_rtc_device(dev); + + if (!candidate->ops->set_alarm) + return 0; + if (!device_may_wakeup(candidate->dev.parent)) + return 0; + + *(const char **)name_ptr = dev_name(dev); + return 1; +} + +/** + * alarmtimer_init_late - Late initializing of alarmtimer code + * + * This function locates a rtc device to use for wakealarms. + * Run as late_initcall to make sure rtc devices have been + * registered. + */ +static int __init alarmtimer_init_late(void) +{ + char *str; + + /* Find an rtc device and init the rtc_timer */ + class_find_device(rtc_class, NULL, &str, has_wakealarm); + if (str) + rtcdev = rtc_class_open(str); + if (!rtcdev) { + printk(KERN_WARNING "No RTC device found, ALARM timers will" + " not wake from suspend"); + } + rtc_timer_init(&rtctimer, NULL, NULL); + + return 0; +} +#else +static int __init alarmtimer_init_late(void) +{ + printk(KERN_WARNING "Kernel not built with RTC support, ALARM timers" + " will not wake from suspend"); + return 0; +} +#endif +late_initcall(alarmtimer_init_late); diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c index 0d74b9ba90c..22a9da9a9c9 100644 --- a/kernel/time/clockevents.c +++ b/kernel/time/clockevents.c @@ -194,6 +194,70 @@ void clockevents_register_device(struct clock_event_device *dev) } EXPORT_SYMBOL_GPL(clockevents_register_device); +static void clockevents_config(struct clock_event_device *dev, + u32 freq) +{ + unsigned long sec; + + if (!(dev->features & CLOCK_EVT_FEAT_ONESHOT)) + return; + + /* + * Calculate the maximum number of seconds we can sleep. Limit + * to 10 minutes for hardware which can program more than + * 32bit ticks so we still get reasonable conversion values. + */ + sec = dev->max_delta_ticks; + do_div(sec, freq); + if (!sec) + sec = 1; + else if (sec > 600 && dev->max_delta_ticks > UINT_MAX) + sec = 600; + + clockevents_calc_mult_shift(dev, freq, sec); + dev->min_delta_ns = clockevent_delta2ns(dev->min_delta_ticks, dev); + dev->max_delta_ns = clockevent_delta2ns(dev->max_delta_ticks, dev); +} + +/** + * clockevents_config_and_register - Configure and register a clock event device + * @dev: device to register + * @freq: The clock frequency + * @min_delta: The minimum clock ticks to program in oneshot mode + * @max_delta: The maximum clock ticks to program in oneshot mode + * + * min/max_delta can be 0 for devices which do not support oneshot mode. + */ +void clockevents_config_and_register(struct clock_event_device *dev, + u32 freq, unsigned long min_delta, + unsigned long max_delta) +{ + dev->min_delta_ticks = min_delta; + dev->max_delta_ticks = max_delta; + clockevents_config(dev, freq); + clockevents_register_device(dev); +} + +/** + * clockevents_update_freq - Update frequency and reprogram a clock event device. + * @dev: device to modify + * @freq: new device frequency + * + * Reconfigure and reprogram a clock event device in oneshot + * mode. Must be called on the cpu for which the device delivers per + * cpu timer events with interrupts disabled! Returns 0 on success, + * -ETIME when the event is in the past. + */ +int clockevents_update_freq(struct clock_event_device *dev, u32 freq) +{ + clockevents_config(dev, freq); + + if (dev->mode != CLOCK_EVT_MODE_ONESHOT) + return 0; + + return clockevents_program_event(dev, dev->next_event, ktime_get()); +} + /* * Noop handler when we shut down an event device */ diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c index 6519cf62d9c..d9d5f8c885f 100644 --- a/kernel/time/clocksource.c +++ b/kernel/time/clocksource.c @@ -626,19 +626,6 @@ static void clocksource_enqueue(struct clocksource *cs) list_add(&cs->list, entry); } - -/* - * Maximum time we expect to go between ticks. This includes idle - * tickless time. It provides the trade off between selecting a - * mult/shift pair that is very precise but can only handle a short - * period of time, vs. a mult/shift pair that can handle long periods - * of time but isn't as precise. - * - * This is a subsystem constant, and actual hardware limitations - * may override it (ie: clocksources that wrap every 3 seconds). - */ -#define MAX_UPDATE_LENGTH 5 /* Seconds */ - /** * __clocksource_updatefreq_scale - Used update clocksource with new freq * @t: clocksource to be registered @@ -652,15 +639,28 @@ static void clocksource_enqueue(struct clocksource *cs) */ void __clocksource_updatefreq_scale(struct clocksource *cs, u32 scale, u32 freq) { + unsigned long sec; + /* - * Ideally we want to use some of the limits used in - * clocksource_max_deferment, to provide a more informed - * MAX_UPDATE_LENGTH. But for now this just gets the - * register interface working properly. + * Calc the maximum number of seconds which we can run before + * wrapping around. For clocksources which have a mask > 32bit + * we need to limit the max sleep time to have a good + * conversion precision. 10 minutes is still a reasonable + * amount. That results in a shift value of 24 for a + * clocksource with mask >= 40bit and f >= 4GHz. That maps to + * ~ 0.06ppm granularity for NTP. We apply the same 12.5% + * margin as we do in clocksource_max_deferment() */ + sec = (cs->mask - (cs->mask >> 5)); + do_div(sec, freq); + do_div(sec, scale); + if (!sec) + sec = 1; + else if (sec > 600 && cs->mask > UINT_MAX) + sec = 600; + clocks_calc_mult_shift(&cs->mult, &cs->shift, freq, - NSEC_PER_SEC/scale, - MAX_UPDATE_LENGTH*scale); + NSEC_PER_SEC / scale, sec * scale); cs->max_idle_ns = clocksource_max_deferment(cs); } EXPORT_SYMBOL_GPL(__clocksource_updatefreq_scale); @@ -685,8 +685,8 @@ int __clocksource_register_scale(struct clocksource *cs, u32 scale, u32 freq) /* Add clocksource to the clcoksource list */ mutex_lock(&clocksource_mutex); clocksource_enqueue(cs); - clocksource_select(); clocksource_enqueue_watchdog(cs); + clocksource_select(); mutex_unlock(&clocksource_mutex); return 0; } @@ -706,8 +706,8 @@ int clocksource_register(struct clocksource *cs) mutex_lock(&clocksource_mutex); clocksource_enqueue(cs); - clocksource_select(); clocksource_enqueue_watchdog(cs); + clocksource_select(); mutex_unlock(&clocksource_mutex); return 0; } diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c index da800ffa810..723c7637e55 100644 --- a/kernel/time/tick-broadcast.c +++ b/kernel/time/tick-broadcast.c @@ -522,10 +522,11 @@ static void tick_broadcast_init_next_event(struct cpumask *mask, */ void tick_broadcast_setup_oneshot(struct clock_event_device *bc) { + int cpu = smp_processor_id(); + /* Set it up only once ! */ if (bc->event_handler != tick_handle_oneshot_broadcast) { int was_periodic = bc->mode == CLOCK_EVT_MODE_PERIODIC; - int cpu = smp_processor_id(); bc->event_handler = tick_handle_oneshot_broadcast; clockevents_set_mode(bc, CLOCK_EVT_MODE_ONESHOT); @@ -551,6 +552,15 @@ void tick_broadcast_setup_oneshot(struct clock_event_device *bc) tick_broadcast_set_event(tick_next_period, 1); } else bc->next_event.tv64 = KTIME_MAX; + } else { + /* + * The first cpu which switches to oneshot mode sets + * the bit for all other cpus which are in the general + * (periodic) broadcast mask. So the bit is set and + * would prevent the first broadcast enter after this + * to program the bc device. + */ + tick_broadcast_clear_oneshot(cpu); } } diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c index 8ad5d576755..8e6a05a5915 100644 --- a/kernel/time/timekeeping.c +++ b/kernel/time/timekeeping.c @@ -596,6 +596,58 @@ void __init timekeeping_init(void) static struct timespec timekeeping_suspend_time; /** + * __timekeeping_inject_sleeptime - Internal function to add sleep interval + * @delta: pointer to a timespec delta value + * + * Takes a timespec offset measuring a suspend interval and properly + * adds the sleep offset to the timekeeping variables. + */ +static void __timekeeping_inject_sleeptime(struct timespec *delta) +{ + xtime = timespec_add(xtime, *delta); + wall_to_monotonic = timespec_sub(wall_to_monotonic, *delta); + total_sleep_time = timespec_add(total_sleep_time, *delta); +} + + +/** + * timekeeping_inject_sleeptime - Adds suspend interval to timeekeeping values + * @delta: pointer to a timespec delta value + * + * This hook is for architectures that cannot support read_persistent_clock + * because their RTC/persistent clock is only accessible when irqs are enabled. + * + * This function should only be called by rtc_resume(), and allows + * a suspend offset to be injected into the timekeeping values. + */ +void timekeeping_inject_sleeptime(struct timespec *delta) +{ + unsigned long flags; + struct timespec ts; + + /* Make sure we don't set the clock twice */ + read_persistent_clock(&ts); + if (!(ts.tv_sec == 0 && ts.tv_nsec == 0)) + return; + + write_seqlock_irqsave(&xtime_lock, flags); + timekeeping_forward_now(); + + __timekeeping_inject_sleeptime(delta); + + timekeeper.ntp_error = 0; + ntp_clear(); + update_vsyscall(&xtime, &wall_to_monotonic, timekeeper.clock, + timekeeper.mult); + + write_sequnlock_irqrestore(&xtime_lock, flags); + + /* signal hrtimers about time change */ + clock_was_set(); +} + + +/** * timekeeping_resume - Resumes the generic timekeeping subsystem. * * This is for the generic clocksource timekeeping. @@ -615,9 +667,7 @@ static void timekeeping_resume(void) if (timespec_compare(&ts, &timekeeping_suspend_time) > 0) { ts = timespec_sub(ts, timekeeping_suspend_time); - xtime = timespec_add(xtime, ts); - wall_to_monotonic = timespec_sub(wall_to_monotonic, ts); - total_sleep_time = timespec_add(total_sleep_time, ts); + __timekeeping_inject_sleeptime(&ts); } /* re-base the last cycle value */ timekeeper.clock->cycle_last = timekeeper.clock->read(timekeeper.clock); diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index ee24fa1935a..d017c2c82c4 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -39,20 +39,26 @@ #include "trace_stat.h" #define FTRACE_WARN_ON(cond) \ - do { \ - if (WARN_ON(cond)) \ + ({ \ + int ___r = cond; \ + if (WARN_ON(___r)) \ ftrace_kill(); \ - } while (0) + ___r; \ + }) #define FTRACE_WARN_ON_ONCE(cond) \ - do { \ - if (WARN_ON_ONCE(cond)) \ + ({ \ + int ___r = cond; \ + if (WARN_ON_ONCE(___r)) \ ftrace_kill(); \ - } while (0) + ___r; \ + }) /* hash bits for specific function selection */ #define FTRACE_HASH_BITS 7 #define FTRACE_FUNC_HASHSIZE (1 << FTRACE_HASH_BITS) +#define FTRACE_HASH_DEFAULT_BITS 10 +#define FTRACE_HASH_MAX_BITS 12 /* ftrace_enabled is a method to turn ftrace on or off */ int ftrace_enabled __read_mostly; @@ -81,23 +87,29 @@ static struct ftrace_ops ftrace_list_end __read_mostly = .func = ftrace_stub, }; -static struct ftrace_ops *ftrace_list __read_mostly = &ftrace_list_end; +static struct ftrace_ops *ftrace_global_list __read_mostly = &ftrace_list_end; +static struct ftrace_ops *ftrace_ops_list __read_mostly = &ftrace_list_end; ftrace_func_t ftrace_trace_function __read_mostly = ftrace_stub; ftrace_func_t __ftrace_trace_function __read_mostly = ftrace_stub; ftrace_func_t ftrace_pid_function __read_mostly = ftrace_stub; +static struct ftrace_ops global_ops; + +static void +ftrace_ops_list_func(unsigned long ip, unsigned long parent_ip); /* - * Traverse the ftrace_list, invoking all entries. The reason that we + * Traverse the ftrace_global_list, invoking all entries. The reason that we * can use rcu_dereference_raw() is that elements removed from this list * are simply leaked, so there is no need to interact with a grace-period * mechanism. The rcu_dereference_raw() calls are needed to handle - * concurrent insertions into the ftrace_list. + * concurrent insertions into the ftrace_global_list. * * Silly Alpha and silly pointer-speculation compiler optimizations! */ -static void ftrace_list_func(unsigned long ip, unsigned long parent_ip) +static void ftrace_global_list_func(unsigned long ip, + unsigned long parent_ip) { - struct ftrace_ops *op = rcu_dereference_raw(ftrace_list); /*see above*/ + struct ftrace_ops *op = rcu_dereference_raw(ftrace_global_list); /*see above*/ while (op != &ftrace_list_end) { op->func(ip, parent_ip); @@ -147,46 +159,69 @@ static void ftrace_test_stop_func(unsigned long ip, unsigned long parent_ip) } #endif -static int __register_ftrace_function(struct ftrace_ops *ops) +static void update_global_ops(void) { - ops->next = ftrace_list; + ftrace_func_t func; + /* - * We are entering ops into the ftrace_list but another - * CPU might be walking that list. We need to make sure - * the ops->next pointer is valid before another CPU sees - * the ops pointer included into the ftrace_list. + * If there's only one function registered, then call that + * function directly. Otherwise, we need to iterate over the + * registered callers. */ - rcu_assign_pointer(ftrace_list, ops); + if (ftrace_global_list == &ftrace_list_end || + ftrace_global_list->next == &ftrace_list_end) + func = ftrace_global_list->func; + else + func = ftrace_global_list_func; - if (ftrace_enabled) { - ftrace_func_t func; + /* If we filter on pids, update to use the pid function */ + if (!list_empty(&ftrace_pids)) { + set_ftrace_pid_function(func); + func = ftrace_pid_func; + } - if (ops->next == &ftrace_list_end) - func = ops->func; - else - func = ftrace_list_func; + global_ops.func = func; +} - if (!list_empty(&ftrace_pids)) { - set_ftrace_pid_function(func); - func = ftrace_pid_func; - } +static void update_ftrace_function(void) +{ + ftrace_func_t func; + + update_global_ops(); + + /* + * If we are at the end of the list and this ops is + * not dynamic, then have the mcount trampoline call + * the function directly + */ + if (ftrace_ops_list == &ftrace_list_end || + (ftrace_ops_list->next == &ftrace_list_end && + !(ftrace_ops_list->flags & FTRACE_OPS_FL_DYNAMIC))) + func = ftrace_ops_list->func; + else + func = ftrace_ops_list_func; - /* - * For one func, simply call it directly. - * For more than one func, call the chain. - */ #ifdef CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST - ftrace_trace_function = func; + ftrace_trace_function = func; #else - __ftrace_trace_function = func; - ftrace_trace_function = ftrace_test_stop_func; + __ftrace_trace_function = func; + ftrace_trace_function = ftrace_test_stop_func; #endif - } +} - return 0; +static void add_ftrace_ops(struct ftrace_ops **list, struct ftrace_ops *ops) +{ + ops->next = *list; + /* + * We are entering ops into the list but another + * CPU might be walking that list. We need to make sure + * the ops->next pointer is valid before another CPU sees + * the ops pointer included into the list. + */ + rcu_assign_pointer(*list, ops); } -static int __unregister_ftrace_function(struct ftrace_ops *ops) +static int remove_ftrace_ops(struct ftrace_ops **list, struct ftrace_ops *ops) { struct ftrace_ops **p; @@ -194,13 +229,12 @@ static int __unregister_ftrace_function(struct ftrace_ops *ops) * If we are removing the last function, then simply point * to the ftrace_stub. */ - if (ftrace_list == ops && ops->next == &ftrace_list_end) { - ftrace_trace_function = ftrace_stub; - ftrace_list = &ftrace_list_end; + if (*list == ops && ops->next == &ftrace_list_end) { + *list = &ftrace_list_end; return 0; } - for (p = &ftrace_list; *p != &ftrace_list_end; p = &(*p)->next) + for (p = list; *p != &ftrace_list_end; p = &(*p)->next) if (*p == ops) break; @@ -208,53 +242,83 @@ static int __unregister_ftrace_function(struct ftrace_ops *ops) return -1; *p = (*p)->next; + return 0; +} - if (ftrace_enabled) { - /* If we only have one func left, then call that directly */ - if (ftrace_list->next == &ftrace_list_end) { - ftrace_func_t func = ftrace_list->func; +static int __register_ftrace_function(struct ftrace_ops *ops) +{ + if (ftrace_disabled) + return -ENODEV; - if (!list_empty(&ftrace_pids)) { - set_ftrace_pid_function(func); - func = ftrace_pid_func; - } -#ifdef CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST - ftrace_trace_function = func; -#else - __ftrace_trace_function = func; -#endif - } - } + if (FTRACE_WARN_ON(ops == &global_ops)) + return -EINVAL; + + if (WARN_ON(ops->flags & FTRACE_OPS_FL_ENABLED)) + return -EBUSY; + + if (!core_kernel_data((unsigned long)ops)) + ops->flags |= FTRACE_OPS_FL_DYNAMIC; + + if (ops->flags & FTRACE_OPS_FL_GLOBAL) { + int first = ftrace_global_list == &ftrace_list_end; + add_ftrace_ops(&ftrace_global_list, ops); + ops->flags |= FTRACE_OPS_FL_ENABLED; + if (first) + add_ftrace_ops(&ftrace_ops_list, &global_ops); + } else + add_ftrace_ops(&ftrace_ops_list, ops); + + if (ftrace_enabled) + update_ftrace_function(); return 0; } -static void ftrace_update_pid_func(void) +static int __unregister_ftrace_function(struct ftrace_ops *ops) { - ftrace_func_t func; + int ret; - if (ftrace_trace_function == ftrace_stub) - return; + if (ftrace_disabled) + return -ENODEV; -#ifdef CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST - func = ftrace_trace_function; -#else - func = __ftrace_trace_function; -#endif + if (WARN_ON(!(ops->flags & FTRACE_OPS_FL_ENABLED))) + return -EBUSY; - if (!list_empty(&ftrace_pids)) { - set_ftrace_pid_function(func); - func = ftrace_pid_func; - } else { - if (func == ftrace_pid_func) - func = ftrace_pid_function; - } + if (FTRACE_WARN_ON(ops == &global_ops)) + return -EINVAL; -#ifdef CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST - ftrace_trace_function = func; -#else - __ftrace_trace_function = func; -#endif + if (ops->flags & FTRACE_OPS_FL_GLOBAL) { + ret = remove_ftrace_ops(&ftrace_global_list, ops); + if (!ret && ftrace_global_list == &ftrace_list_end) + ret = remove_ftrace_ops(&ftrace_ops_list, &global_ops); + if (!ret) + ops->flags &= ~FTRACE_OPS_FL_ENABLED; + } else + ret = remove_ftrace_ops(&ftrace_ops_list, ops); + + if (ret < 0) + return ret; + + if (ftrace_enabled) + update_ftrace_function(); + + /* + * Dynamic ops may be freed, we must make sure that all + * callers are done before leaving this function. + */ + if (ops->flags & FTRACE_OPS_FL_DYNAMIC) + synchronize_sched(); + + return 0; +} + +static void ftrace_update_pid_func(void) +{ + /* Only do something if we are tracing something */ + if (ftrace_trace_function == ftrace_stub) + return; + + update_ftrace_function(); } #ifdef CONFIG_FUNCTION_PROFILER @@ -888,8 +952,35 @@ enum { FTRACE_START_FUNC_RET = (1 << 3), FTRACE_STOP_FUNC_RET = (1 << 4), }; +struct ftrace_func_entry { + struct hlist_node hlist; + unsigned long ip; +}; -static int ftrace_filtered; +struct ftrace_hash { + unsigned long size_bits; + struct hlist_head *buckets; + unsigned long count; + struct rcu_head rcu; +}; + +/* + * We make these constant because no one should touch them, + * but they are used as the default "empty hash", to avoid allocating + * it all the time. These are in a read only section such that if + * anyone does try to modify it, it will cause an exception. + */ +static const struct hlist_head empty_buckets[1]; +static const struct ftrace_hash empty_hash = { + .buckets = (struct hlist_head *)empty_buckets, +}; +#define EMPTY_HASH ((struct ftrace_hash *)&empty_hash) + +static struct ftrace_ops global_ops = { + .func = ftrace_stub, + .notrace_hash = EMPTY_HASH, + .filter_hash = EMPTY_HASH, +}; static struct dyn_ftrace *ftrace_new_addrs; @@ -912,6 +1003,269 @@ static struct ftrace_page *ftrace_pages; static struct dyn_ftrace *ftrace_free_records; +static struct ftrace_func_entry * +ftrace_lookup_ip(struct ftrace_hash *hash, unsigned long ip) +{ + unsigned long key; + struct ftrace_func_entry *entry; + struct hlist_head *hhd; + struct hlist_node *n; + + if (!hash->count) + return NULL; + + if (hash->size_bits > 0) + key = hash_long(ip, hash->size_bits); + else + key = 0; + + hhd = &hash->buckets[key]; + + hlist_for_each_entry_rcu(entry, n, hhd, hlist) { + if (entry->ip == ip) + return entry; + } + return NULL; +} + +static void __add_hash_entry(struct ftrace_hash *hash, + struct ftrace_func_entry *entry) +{ + struct hlist_head *hhd; + unsigned long key; + + if (hash->size_bits) + key = hash_long(entry->ip, hash->size_bits); + else + key = 0; + + hhd = &hash->buckets[key]; + hlist_add_head(&entry->hlist, hhd); + hash->count++; +} + +static int add_hash_entry(struct ftrace_hash *hash, unsigned long ip) +{ + struct ftrace_func_entry *entry; + + entry = kmalloc(sizeof(*entry), GFP_KERNEL); + if (!entry) + return -ENOMEM; + + entry->ip = ip; + __add_hash_entry(hash, entry); + + return 0; +} + +static void +free_hash_entry(struct ftrace_hash *hash, + struct ftrace_func_entry *entry) +{ + hlist_del(&entry->hlist); + kfree(entry); + hash->count--; +} + +static void +remove_hash_entry(struct ftrace_hash *hash, + struct ftrace_func_entry *entry) +{ + hlist_del(&entry->hlist); + hash->count--; +} + +static void ftrace_hash_clear(struct ftrace_hash *hash) +{ + struct hlist_head *hhd; + struct hlist_node *tp, *tn; + struct ftrace_func_entry *entry; + int size = 1 << hash->size_bits; + int i; + + if (!hash->count) + return; + + for (i = 0; i < size; i++) { + hhd = &hash->buckets[i]; + hlist_for_each_entry_safe(entry, tp, tn, hhd, hlist) + free_hash_entry(hash, entry); + } + FTRACE_WARN_ON(hash->count); +} + +static void free_ftrace_hash(struct ftrace_hash *hash) +{ + if (!hash || hash == EMPTY_HASH) + return; + ftrace_hash_clear(hash); + kfree(hash->buckets); + kfree(hash); +} + +static void __free_ftrace_hash_rcu(struct rcu_head *rcu) +{ + struct ftrace_hash *hash; + + hash = container_of(rcu, struct ftrace_hash, rcu); + free_ftrace_hash(hash); +} + +static void free_ftrace_hash_rcu(struct ftrace_hash *hash) +{ + if (!hash || hash == EMPTY_HASH) + return; + call_rcu_sched(&hash->rcu, __free_ftrace_hash_rcu); +} + +static struct ftrace_hash *alloc_ftrace_hash(int size_bits) +{ + struct ftrace_hash *hash; + int size; + + hash = kzalloc(sizeof(*hash), GFP_KERNEL); + if (!hash) + return NULL; + + size = 1 << size_bits; + hash->buckets = kzalloc(sizeof(*hash->buckets) * size, GFP_KERNEL); + + if (!hash->buckets) { + kfree(hash); + return NULL; + } + + hash->size_bits = size_bits; + + return hash; +} + +static struct ftrace_hash * +alloc_and_copy_ftrace_hash(int size_bits, struct ftrace_hash *hash) +{ + struct ftrace_func_entry *entry; + struct ftrace_hash *new_hash; + struct hlist_node *tp; + int size; + int ret; + int i; + + new_hash = alloc_ftrace_hash(size_bits); + if (!new_hash) + return NULL; + + /* Empty hash? */ + if (!hash || !hash->count) + return new_hash; + + size = 1 << hash->size_bits; + for (i = 0; i < size; i++) { + hlist_for_each_entry(entry, tp, &hash->buckets[i], hlist) { + ret = add_hash_entry(new_hash, entry->ip); + if (ret < 0) + goto free_hash; + } + } + + FTRACE_WARN_ON(new_hash->count != hash->count); + + return new_hash; + + free_hash: + free_ftrace_hash(new_hash); + return NULL; +} + +static int +ftrace_hash_move(struct ftrace_hash **dst, struct ftrace_hash *src) +{ + struct ftrace_func_entry *entry; + struct hlist_node *tp, *tn; + struct hlist_head *hhd; + struct ftrace_hash *old_hash; + struct ftrace_hash *new_hash; + unsigned long key; + int size = src->count; + int bits = 0; + int i; + + /* + * If the new source is empty, just free dst and assign it + * the empty_hash. + */ + if (!src->count) { + free_ftrace_hash_rcu(*dst); + rcu_assign_pointer(*dst, EMPTY_HASH); + return 0; + } + + /* + * Make the hash size about 1/2 the # found + */ + for (size /= 2; size; size >>= 1) + bits++; + + /* Don't allocate too much */ + if (bits > FTRACE_HASH_MAX_BITS) + bits = FTRACE_HASH_MAX_BITS; + + new_hash = alloc_ftrace_hash(bits); + if (!new_hash) + return -ENOMEM; + + size = 1 << src->size_bits; + for (i = 0; i < size; i++) { + hhd = &src->buckets[i]; + hlist_for_each_entry_safe(entry, tp, tn, hhd, hlist) { + if (bits > 0) + key = hash_long(entry->ip, bits); + else + key = 0; + remove_hash_entry(src, entry); + __add_hash_entry(new_hash, entry); + } + } + + old_hash = *dst; + rcu_assign_pointer(*dst, new_hash); + free_ftrace_hash_rcu(old_hash); + + return 0; +} + +/* + * Test the hashes for this ops to see if we want to call + * the ops->func or not. + * + * It's a match if the ip is in the ops->filter_hash or + * the filter_hash does not exist or is empty, + * AND + * the ip is not in the ops->notrace_hash. + * + * This needs to be called with preemption disabled as + * the hashes are freed with call_rcu_sched(). + */ +static int +ftrace_ops_test(struct ftrace_ops *ops, unsigned long ip) +{ + struct ftrace_hash *filter_hash; + struct ftrace_hash *notrace_hash; + int ret; + + filter_hash = rcu_dereference_raw(ops->filter_hash); + notrace_hash = rcu_dereference_raw(ops->notrace_hash); + + if ((!filter_hash || !filter_hash->count || + ftrace_lookup_ip(filter_hash, ip)) && + (!notrace_hash || !notrace_hash->count || + !ftrace_lookup_ip(notrace_hash, ip))) + ret = 1; + else + ret = 0; + + return ret; +} + /* * This is a double for. Do not use 'break' to break out of the loop, * you must use a goto. @@ -926,6 +1280,105 @@ static struct dyn_ftrace *ftrace_free_records; } \ } +static void __ftrace_hash_rec_update(struct ftrace_ops *ops, + int filter_hash, + bool inc) +{ + struct ftrace_hash *hash; + struct ftrace_hash *other_hash; + struct ftrace_page *pg; + struct dyn_ftrace *rec; + int count = 0; + int all = 0; + + /* Only update if the ops has been registered */ + if (!(ops->flags & FTRACE_OPS_FL_ENABLED)) + return; + + /* + * In the filter_hash case: + * If the count is zero, we update all records. + * Otherwise we just update the items in the hash. + * + * In the notrace_hash case: + * We enable the update in the hash. + * As disabling notrace means enabling the tracing, + * and enabling notrace means disabling, the inc variable + * gets inversed. + */ + if (filter_hash) { + hash = ops->filter_hash; + other_hash = ops->notrace_hash; + if (!hash || !hash->count) + all = 1; + } else { + inc = !inc; + hash = ops->notrace_hash; + other_hash = ops->filter_hash; + /* + * If the notrace hash has no items, + * then there's nothing to do. + */ + if (hash && !hash->count) + return; + } + + do_for_each_ftrace_rec(pg, rec) { + int in_other_hash = 0; + int in_hash = 0; + int match = 0; + + if (all) { + /* + * Only the filter_hash affects all records. + * Update if the record is not in the notrace hash. + */ + if (!other_hash || !ftrace_lookup_ip(other_hash, rec->ip)) + match = 1; + } else { + in_hash = hash && !!ftrace_lookup_ip(hash, rec->ip); + in_other_hash = other_hash && !!ftrace_lookup_ip(other_hash, rec->ip); + + /* + * + */ + if (filter_hash && in_hash && !in_other_hash) + match = 1; + else if (!filter_hash && in_hash && + (in_other_hash || !other_hash->count)) + match = 1; + } + if (!match) + continue; + + if (inc) { + rec->flags++; + if (FTRACE_WARN_ON((rec->flags & ~FTRACE_FL_MASK) == FTRACE_REF_MAX)) + return; + } else { + if (FTRACE_WARN_ON((rec->flags & ~FTRACE_FL_MASK) == 0)) + return; + rec->flags--; + } + count++; + /* Shortcut, if we handled all records, we are done. */ + if (!all && count == hash->count) + return; + } while_for_each_ftrace_rec(); +} + +static void ftrace_hash_rec_disable(struct ftrace_ops *ops, + int filter_hash) +{ + __ftrace_hash_rec_update(ops, filter_hash, 0); +} + +static void ftrace_hash_rec_enable(struct ftrace_ops *ops, + int filter_hash) +{ + __ftrace_hash_rec_update(ops, filter_hash, 1); +} + static void ftrace_free_rec(struct dyn_ftrace *rec) { rec->freelist = ftrace_free_records; @@ -1047,18 +1500,18 @@ __ftrace_replace_code(struct dyn_ftrace *rec, int enable) ftrace_addr = (unsigned long)FTRACE_ADDR; /* - * If this record is not to be traced or we want to disable it, - * then disable it. + * If we are enabling tracing: + * + * If the record has a ref count, then we need to enable it + * because someone is using it. * - * If we want to enable it and filtering is off, then enable it. + * Otherwise we make sure its disabled. * - * If we want to enable it and filtering is on, enable it only if - * it's filtered + * If we are disabling tracing, then disable all records that + * are enabled. */ - if (enable && !(rec->flags & FTRACE_FL_NOTRACE)) { - if (!ftrace_filtered || (rec->flags & FTRACE_FL_FILTER)) - flag = FTRACE_FL_ENABLED; - } + if (enable && (rec->flags & ~FTRACE_FL_MASK)) + flag = FTRACE_FL_ENABLED; /* If the state of this record hasn't changed, then do nothing */ if ((rec->flags & FTRACE_FL_ENABLED) == flag) @@ -1079,19 +1532,16 @@ static void ftrace_replace_code(int enable) struct ftrace_page *pg; int failed; + if (unlikely(ftrace_disabled)) + return; + do_for_each_ftrace_rec(pg, rec) { - /* - * Skip over free records, records that have - * failed and not converted. - */ - if (rec->flags & FTRACE_FL_FREE || - rec->flags & FTRACE_FL_FAILED || - !(rec->flags & FTRACE_FL_CONVERTED)) + /* Skip over free records */ + if (rec->flags & FTRACE_FL_FREE) continue; failed = __ftrace_replace_code(rec, enable); if (failed) { - rec->flags |= FTRACE_FL_FAILED; ftrace_bug(failed, rec->ip); /* Stop processing */ return; @@ -1107,10 +1557,12 @@ ftrace_code_disable(struct module *mod, struct dyn_ftrace *rec) ip = rec->ip; + if (unlikely(ftrace_disabled)) + return 0; + ret = ftrace_make_nop(mod, rec, MCOUNT_ADDR); if (ret) { ftrace_bug(ret, ip); - rec->flags |= FTRACE_FL_FAILED; return 0; } return 1; @@ -1171,6 +1623,7 @@ static void ftrace_run_update_code(int command) static ftrace_func_t saved_ftrace_func; static int ftrace_start_up; +static int global_start_up; static void ftrace_startup_enable(int command) { @@ -1185,19 +1638,36 @@ static void ftrace_startup_enable(int command) ftrace_run_update_code(command); } -static void ftrace_startup(int command) +static void ftrace_startup(struct ftrace_ops *ops, int command) { + bool hash_enable = true; + if (unlikely(ftrace_disabled)) return; ftrace_start_up++; command |= FTRACE_ENABLE_CALLS; + /* ops marked global share the filter hashes */ + if (ops->flags & FTRACE_OPS_FL_GLOBAL) { + ops = &global_ops; + /* Don't update hash if global is already set */ + if (global_start_up) + hash_enable = false; + global_start_up++; + } + + ops->flags |= FTRACE_OPS_FL_ENABLED; + if (hash_enable) + ftrace_hash_rec_enable(ops, 1); + ftrace_startup_enable(command); } -static void ftrace_shutdown(int command) +static void ftrace_shutdown(struct ftrace_ops *ops, int command) { + bool hash_disable = true; + if (unlikely(ftrace_disabled)) return; @@ -1209,6 +1679,23 @@ static void ftrace_shutdown(int command) */ WARN_ON_ONCE(ftrace_start_up < 0); + if (ops->flags & FTRACE_OPS_FL_GLOBAL) { + ops = &global_ops; + global_start_up--; + WARN_ON_ONCE(global_start_up < 0); + /* Don't update hash if global still has users */ + if (global_start_up) { + WARN_ON_ONCE(!ftrace_start_up); + hash_disable = false; + } + } + + if (hash_disable) + ftrace_hash_rec_disable(ops, 1); + + if (ops != &global_ops || !global_start_up) + ops->flags &= ~FTRACE_OPS_FL_ENABLED; + if (!ftrace_start_up) command |= FTRACE_DISABLE_CALLS; @@ -1273,10 +1760,10 @@ static int ftrace_update_code(struct module *mod) */ if (!ftrace_code_disable(mod, p)) { ftrace_free_rec(p); - continue; + /* Game over */ + break; } - p->flags |= FTRACE_FL_CONVERTED; ftrace_update_cnt++; /* @@ -1351,9 +1838,9 @@ static int __init ftrace_dyn_table_alloc(unsigned long num_to_init) enum { FTRACE_ITER_FILTER = (1 << 0), FTRACE_ITER_NOTRACE = (1 << 1), - FTRACE_ITER_FAILURES = (1 << 2), - FTRACE_ITER_PRINTALL = (1 << 3), - FTRACE_ITER_HASH = (1 << 4), + FTRACE_ITER_PRINTALL = (1 << 2), + FTRACE_ITER_HASH = (1 << 3), + FTRACE_ITER_ENABLED = (1 << 4), }; #define FTRACE_BUFF_MAX (KSYM_SYMBOL_LEN+4) /* room for wildcards */ @@ -1365,6 +1852,8 @@ struct ftrace_iterator { struct dyn_ftrace *func; struct ftrace_func_probe *probe; struct trace_parser parser; + struct ftrace_hash *hash; + struct ftrace_ops *ops; int hidx; int idx; unsigned flags; @@ -1461,8 +1950,12 @@ static void * t_next(struct seq_file *m, void *v, loff_t *pos) { struct ftrace_iterator *iter = m->private; + struct ftrace_ops *ops = &global_ops; struct dyn_ftrace *rec = NULL; + if (unlikely(ftrace_disabled)) + return NULL; + if (iter->flags & FTRACE_ITER_HASH) return t_hash_next(m, pos); @@ -1483,17 +1976,15 @@ t_next(struct seq_file *m, void *v, loff_t *pos) rec = &iter->pg->records[iter->idx++]; if ((rec->flags & FTRACE_FL_FREE) || - (!(iter->flags & FTRACE_ITER_FAILURES) && - (rec->flags & FTRACE_FL_FAILED)) || - - ((iter->flags & FTRACE_ITER_FAILURES) && - !(rec->flags & FTRACE_FL_FAILED)) || - ((iter->flags & FTRACE_ITER_FILTER) && - !(rec->flags & FTRACE_FL_FILTER)) || + !(ftrace_lookup_ip(ops->filter_hash, rec->ip))) || ((iter->flags & FTRACE_ITER_NOTRACE) && - !(rec->flags & FTRACE_FL_NOTRACE))) { + !ftrace_lookup_ip(ops->notrace_hash, rec->ip)) || + + ((iter->flags & FTRACE_ITER_ENABLED) && + !(rec->flags & ~FTRACE_FL_MASK))) { + rec = NULL; goto retry; } @@ -1517,10 +2008,15 @@ static void reset_iter_read(struct ftrace_iterator *iter) static void *t_start(struct seq_file *m, loff_t *pos) { struct ftrace_iterator *iter = m->private; + struct ftrace_ops *ops = &global_ops; void *p = NULL; loff_t l; mutex_lock(&ftrace_lock); + + if (unlikely(ftrace_disabled)) + return NULL; + /* * If an lseek was done, then reset and start from beginning. */ @@ -1532,7 +2028,7 @@ static void *t_start(struct seq_file *m, loff_t *pos) * off, we can short cut and just print out that all * functions are enabled. */ - if (iter->flags & FTRACE_ITER_FILTER && !ftrace_filtered) { + if (iter->flags & FTRACE_ITER_FILTER && !ops->filter_hash->count) { if (*pos > 0) return t_hash_start(m, pos); iter->flags |= FTRACE_ITER_PRINTALL; @@ -1590,7 +2086,11 @@ static int t_show(struct seq_file *m, void *v) if (!rec) return 0; - seq_printf(m, "%ps\n", (void *)rec->ip); + seq_printf(m, "%ps", (void *)rec->ip); + if (iter->flags & FTRACE_ITER_ENABLED) + seq_printf(m, " (%ld)", + rec->flags & ~FTRACE_FL_MASK); + seq_printf(m, "\n"); return 0; } @@ -1630,44 +2130,46 @@ ftrace_avail_open(struct inode *inode, struct file *file) } static int -ftrace_failures_open(struct inode *inode, struct file *file) +ftrace_enabled_open(struct inode *inode, struct file *file) { - int ret; - struct seq_file *m; struct ftrace_iterator *iter; + int ret; + + if (unlikely(ftrace_disabled)) + return -ENODEV; + + iter = kzalloc(sizeof(*iter), GFP_KERNEL); + if (!iter) + return -ENOMEM; + + iter->pg = ftrace_pages_start; + iter->flags = FTRACE_ITER_ENABLED; - ret = ftrace_avail_open(inode, file); + ret = seq_open(file, &show_ftrace_seq_ops); if (!ret) { - m = file->private_data; - iter = m->private; - iter->flags = FTRACE_ITER_FAILURES; + struct seq_file *m = file->private_data; + + m->private = iter; + } else { + kfree(iter); } return ret; } - -static void ftrace_filter_reset(int enable) +static void ftrace_filter_reset(struct ftrace_hash *hash) { - struct ftrace_page *pg; - struct dyn_ftrace *rec; - unsigned long type = enable ? FTRACE_FL_FILTER : FTRACE_FL_NOTRACE; - mutex_lock(&ftrace_lock); - if (enable) - ftrace_filtered = 0; - do_for_each_ftrace_rec(pg, rec) { - if (rec->flags & FTRACE_FL_FAILED) - continue; - rec->flags &= ~type; - } while_for_each_ftrace_rec(); + ftrace_hash_clear(hash); mutex_unlock(&ftrace_lock); } static int -ftrace_regex_open(struct inode *inode, struct file *file, int enable) +ftrace_regex_open(struct ftrace_ops *ops, int flag, + struct inode *inode, struct file *file) { struct ftrace_iterator *iter; + struct ftrace_hash *hash; int ret = 0; if (unlikely(ftrace_disabled)) @@ -1682,21 +2184,42 @@ ftrace_regex_open(struct inode *inode, struct file *file, int enable) return -ENOMEM; } + if (flag & FTRACE_ITER_NOTRACE) + hash = ops->notrace_hash; + else + hash = ops->filter_hash; + + iter->ops = ops; + iter->flags = flag; + + if (file->f_mode & FMODE_WRITE) { + mutex_lock(&ftrace_lock); + iter->hash = alloc_and_copy_ftrace_hash(FTRACE_HASH_DEFAULT_BITS, hash); + mutex_unlock(&ftrace_lock); + + if (!iter->hash) { + trace_parser_put(&iter->parser); + kfree(iter); + return -ENOMEM; + } + } + mutex_lock(&ftrace_regex_lock); + if ((file->f_mode & FMODE_WRITE) && (file->f_flags & O_TRUNC)) - ftrace_filter_reset(enable); + ftrace_filter_reset(iter->hash); if (file->f_mode & FMODE_READ) { iter->pg = ftrace_pages_start; - iter->flags = enable ? FTRACE_ITER_FILTER : - FTRACE_ITER_NOTRACE; ret = seq_open(file, &show_ftrace_seq_ops); if (!ret) { struct seq_file *m = file->private_data; m->private = iter; } else { + /* Failed */ + free_ftrace_hash(iter->hash); trace_parser_put(&iter->parser); kfree(iter); } @@ -1710,13 +2233,15 @@ ftrace_regex_open(struct inode *inode, struct file *file, int enable) static int ftrace_filter_open(struct inode *inode, struct file *file) { - return ftrace_regex_open(inode, file, 1); + return ftrace_regex_open(&global_ops, FTRACE_ITER_FILTER, + inode, file); } static int ftrace_notrace_open(struct inode *inode, struct file *file) { - return ftrace_regex_open(inode, file, 0); + return ftrace_regex_open(&global_ops, FTRACE_ITER_NOTRACE, + inode, file); } static loff_t @@ -1761,86 +2286,99 @@ static int ftrace_match(char *str, char *regex, int len, int type) } static int -ftrace_match_record(struct dyn_ftrace *rec, char *regex, int len, int type) +enter_record(struct ftrace_hash *hash, struct dyn_ftrace *rec, int not) +{ + struct ftrace_func_entry *entry; + int ret = 0; + + entry = ftrace_lookup_ip(hash, rec->ip); + if (not) { + /* Do nothing if it doesn't exist */ + if (!entry) + return 0; + + free_hash_entry(hash, entry); + } else { + /* Do nothing if it exists */ + if (entry) + return 0; + + ret = add_hash_entry(hash, rec->ip); + } + return ret; +} + +static int +ftrace_match_record(struct dyn_ftrace *rec, char *mod, + char *regex, int len, int type) { char str[KSYM_SYMBOL_LEN]; + char *modname; + + kallsyms_lookup(rec->ip, NULL, NULL, &modname, str); + + if (mod) { + /* module lookup requires matching the module */ + if (!modname || strcmp(modname, mod)) + return 0; + + /* blank search means to match all funcs in the mod */ + if (!len) + return 1; + } - kallsyms_lookup(rec->ip, NULL, NULL, NULL, str); return ftrace_match(str, regex, len, type); } -static int ftrace_match_records(char *buff, int len, int enable) +static int +match_records(struct ftrace_hash *hash, char *buff, + int len, char *mod, int not) { - unsigned int search_len; + unsigned search_len = 0; struct ftrace_page *pg; struct dyn_ftrace *rec; - unsigned long flag; - char *search; - int type; - int not; + int type = MATCH_FULL; + char *search = buff; int found = 0; + int ret; - flag = enable ? FTRACE_FL_FILTER : FTRACE_FL_NOTRACE; - type = filter_parse_regex(buff, len, &search, ¬); - - search_len = strlen(search); + if (len) { + type = filter_parse_regex(buff, len, &search, ¬); + search_len = strlen(search); + } mutex_lock(&ftrace_lock); - do_for_each_ftrace_rec(pg, rec) { - if (rec->flags & FTRACE_FL_FAILED) - continue; + if (unlikely(ftrace_disabled)) + goto out_unlock; - if (ftrace_match_record(rec, search, search_len, type)) { - if (not) - rec->flags &= ~flag; - else - rec->flags |= flag; + do_for_each_ftrace_rec(pg, rec) { + + if (ftrace_match_record(rec, mod, search, search_len, type)) { + ret = enter_record(hash, rec, not); + if (ret < 0) { + found = ret; + goto out_unlock; + } found = 1; } - /* - * Only enable filtering if we have a function that - * is filtered on. - */ - if (enable && (rec->flags & FTRACE_FL_FILTER)) - ftrace_filtered = 1; } while_for_each_ftrace_rec(); + out_unlock: mutex_unlock(&ftrace_lock); return found; } static int -ftrace_match_module_record(struct dyn_ftrace *rec, char *mod, - char *regex, int len, int type) +ftrace_match_records(struct ftrace_hash *hash, char *buff, int len) { - char str[KSYM_SYMBOL_LEN]; - char *modname; - - kallsyms_lookup(rec->ip, NULL, NULL, &modname, str); - - if (!modname || strcmp(modname, mod)) - return 0; - - /* blank search means to match all funcs in the mod */ - if (len) - return ftrace_match(str, regex, len, type); - else - return 1; + return match_records(hash, buff, len, NULL, 0); } -static int ftrace_match_module_records(char *buff, char *mod, int enable) +static int +ftrace_match_module_records(struct ftrace_hash *hash, char *buff, char *mod) { - unsigned search_len = 0; - struct ftrace_page *pg; - struct dyn_ftrace *rec; - int type = MATCH_FULL; - char *search = buff; - unsigned long flag; int not = 0; - int found = 0; - - flag = enable ? FTRACE_FL_FILTER : FTRACE_FL_NOTRACE; /* blank or '*' mean the same */ if (strcmp(buff, "*") == 0) @@ -1852,32 +2390,7 @@ static int ftrace_match_module_records(char *buff, char *mod, int enable) not = 1; } - if (strlen(buff)) { - type = filter_parse_regex(buff, strlen(buff), &search, ¬); - search_len = strlen(search); - } - - mutex_lock(&ftrace_lock); - do_for_each_ftrace_rec(pg, rec) { - - if (rec->flags & FTRACE_FL_FAILED) - continue; - - if (ftrace_match_module_record(rec, mod, - search, search_len, type)) { - if (not) - rec->flags &= ~flag; - else - rec->flags |= flag; - found = 1; - } - if (enable && (rec->flags & FTRACE_FL_FILTER)) - ftrace_filtered = 1; - - } while_for_each_ftrace_rec(); - mutex_unlock(&ftrace_lock); - - return found; + return match_records(hash, buff, strlen(buff), mod, not); } /* @@ -1888,7 +2401,10 @@ static int ftrace_match_module_records(char *buff, char *mod, int enable) static int ftrace_mod_callback(char *func, char *cmd, char *param, int enable) { + struct ftrace_ops *ops = &global_ops; + struct ftrace_hash *hash; char *mod; + int ret = -EINVAL; /* * cmd == 'mod' because we only registered this func @@ -1900,15 +2416,24 @@ ftrace_mod_callback(char *func, char *cmd, char *param, int enable) /* we must have a module name */ if (!param) - return -EINVAL; + return ret; mod = strsep(¶m, ":"); if (!strlen(mod)) - return -EINVAL; + return ret; - if (ftrace_match_module_records(func, mod, enable)) - return 0; - return -EINVAL; + if (enable) + hash = ops->filter_hash; + else + hash = ops->notrace_hash; + + ret = ftrace_match_module_records(hash, func, mod); + if (!ret) + ret = -EINVAL; + if (ret < 0) + return ret; + + return 0; } static struct ftrace_func_command ftrace_mod_cmd = { @@ -1959,6 +2484,7 @@ static int ftrace_probe_registered; static void __enable_ftrace_function_probe(void) { + int ret; int i; if (ftrace_probe_registered) @@ -1973,13 +2499,16 @@ static void __enable_ftrace_function_probe(void) if (i == FTRACE_FUNC_HASHSIZE) return; - __register_ftrace_function(&trace_probe_ops); - ftrace_startup(0); + ret = __register_ftrace_function(&trace_probe_ops); + if (!ret) + ftrace_startup(&trace_probe_ops, 0); + ftrace_probe_registered = 1; } static void __disable_ftrace_function_probe(void) { + int ret; int i; if (!ftrace_probe_registered) @@ -1992,8 +2521,10 @@ static void __disable_ftrace_function_probe(void) } /* no more funcs left */ - __unregister_ftrace_function(&trace_probe_ops); - ftrace_shutdown(0); + ret = __unregister_ftrace_function(&trace_probe_ops); + if (!ret) + ftrace_shutdown(&trace_probe_ops, 0); + ftrace_probe_registered = 0; } @@ -2029,12 +2560,13 @@ register_ftrace_function_probe(char *glob, struct ftrace_probe_ops *ops, return -EINVAL; mutex_lock(&ftrace_lock); - do_for_each_ftrace_rec(pg, rec) { - if (rec->flags & FTRACE_FL_FAILED) - continue; + if (unlikely(ftrace_disabled)) + goto out_unlock; + + do_for_each_ftrace_rec(pg, rec) { - if (!ftrace_match_record(rec, search, len, type)) + if (!ftrace_match_record(rec, NULL, search, len, type)) continue; entry = kmalloc(sizeof(*entry), GFP_KERNEL); @@ -2195,18 +2727,22 @@ int unregister_ftrace_command(struct ftrace_func_command *cmd) return ret; } -static int ftrace_process_regex(char *buff, int len, int enable) +static int ftrace_process_regex(struct ftrace_hash *hash, + char *buff, int len, int enable) { char *func, *command, *next = buff; struct ftrace_func_command *p; - int ret = -EINVAL; + int ret; func = strsep(&next, ":"); if (!next) { - if (ftrace_match_records(func, len, enable)) - return 0; - return ret; + ret = ftrace_match_records(hash, func, len); + if (!ret) + ret = -EINVAL; + if (ret < 0) + return ret; + return 0; } /* command found */ @@ -2239,6 +2775,10 @@ ftrace_regex_write(struct file *file, const char __user *ubuf, mutex_lock(&ftrace_regex_lock); + ret = -ENODEV; + if (unlikely(ftrace_disabled)) + goto out_unlock; + if (file->f_mode & FMODE_READ) { struct seq_file *m = file->private_data; iter = m->private; @@ -2250,7 +2790,7 @@ ftrace_regex_write(struct file *file, const char __user *ubuf, if (read >= 0 && trace_parser_loaded(parser) && !trace_parser_cont(parser)) { - ret = ftrace_process_regex(parser->buffer, + ret = ftrace_process_regex(iter->hash, parser->buffer, parser->idx, enable); trace_parser_clear(parser); if (ret) @@ -2278,22 +2818,49 @@ ftrace_notrace_write(struct file *file, const char __user *ubuf, return ftrace_regex_write(file, ubuf, cnt, ppos, 0); } -static void -ftrace_set_regex(unsigned char *buf, int len, int reset, int enable) +static int +ftrace_set_regex(struct ftrace_ops *ops, unsigned char *buf, int len, + int reset, int enable) { + struct ftrace_hash **orig_hash; + struct ftrace_hash *hash; + int ret; + + /* All global ops uses the global ops filters */ + if (ops->flags & FTRACE_OPS_FL_GLOBAL) + ops = &global_ops; + if (unlikely(ftrace_disabled)) - return; + return -ENODEV; + + if (enable) + orig_hash = &ops->filter_hash; + else + orig_hash = &ops->notrace_hash; + + hash = alloc_and_copy_ftrace_hash(FTRACE_HASH_DEFAULT_BITS, *orig_hash); + if (!hash) + return -ENOMEM; mutex_lock(&ftrace_regex_lock); if (reset) - ftrace_filter_reset(enable); + ftrace_filter_reset(hash); if (buf) - ftrace_match_records(buf, len, enable); + ftrace_match_records(hash, buf, len); + + mutex_lock(&ftrace_lock); + ret = ftrace_hash_move(orig_hash, hash); + mutex_unlock(&ftrace_lock); + mutex_unlock(&ftrace_regex_lock); + + free_ftrace_hash(hash); + return ret; } /** * ftrace_set_filter - set a function to filter on in ftrace + * @ops - the ops to set the filter with * @buf - the string that holds the function filter text. * @len - the length of the string. * @reset - non zero to reset all filters before applying this filter. @@ -2301,13 +2868,16 @@ ftrace_set_regex(unsigned char *buf, int len, int reset, int enable) * Filters denote which functions should be enabled when tracing is enabled. * If @buf is NULL and reset is set, all functions will be enabled for tracing. */ -void ftrace_set_filter(unsigned char *buf, int len, int reset) +void ftrace_set_filter(struct ftrace_ops *ops, unsigned char *buf, + int len, int reset) { - ftrace_set_regex(buf, len, reset, 1); + ftrace_set_regex(ops, buf, len, reset, 1); } +EXPORT_SYMBOL_GPL(ftrace_set_filter); /** * ftrace_set_notrace - set a function to not trace in ftrace + * @ops - the ops to set the notrace filter with * @buf - the string that holds the function notrace text. * @len - the length of the string. * @reset - non zero to reset all filters before applying this filter. @@ -2316,10 +2886,44 @@ void ftrace_set_filter(unsigned char *buf, int len, int reset) * is enabled. If @buf is NULL and reset is set, all functions will be enabled * for tracing. */ -void ftrace_set_notrace(unsigned char *buf, int len, int reset) +void ftrace_set_notrace(struct ftrace_ops *ops, unsigned char *buf, + int len, int reset) { - ftrace_set_regex(buf, len, reset, 0); + ftrace_set_regex(ops, buf, len, reset, 0); } +EXPORT_SYMBOL_GPL(ftrace_set_notrace); +/** + * ftrace_set_filter - set a function to filter on in ftrace + * @ops - the ops to set the filter with + * @buf - the string that holds the function filter text. + * @len - the length of the string. + * @reset - non zero to reset all filters before applying this filter. + * + * Filters denote which functions should be enabled when tracing is enabled. + * If @buf is NULL and reset is set, all functions will be enabled for tracing. + */ +void ftrace_set_global_filter(unsigned char *buf, int len, int reset) +{ + ftrace_set_regex(&global_ops, buf, len, reset, 1); +} +EXPORT_SYMBOL_GPL(ftrace_set_global_filter); + +/** + * ftrace_set_notrace - set a function to not trace in ftrace + * @ops - the ops to set the notrace filter with + * @buf - the string that holds the function notrace text. + * @len - the length of the string. + * @reset - non zero to reset all filters before applying this filter. + * + * Notrace Filters denote which functions should not be enabled when tracing + * is enabled. If @buf is NULL and reset is set, all functions will be enabled + * for tracing. + */ +void ftrace_set_global_notrace(unsigned char *buf, int len, int reset) +{ + ftrace_set_regex(&global_ops, buf, len, reset, 0); +} +EXPORT_SYMBOL_GPL(ftrace_set_global_notrace); /* * command line interface to allow users to set filters on boot up. @@ -2370,22 +2974,23 @@ static void __init set_ftrace_early_graph(char *buf) } #endif /* CONFIG_FUNCTION_GRAPH_TRACER */ -static void __init set_ftrace_early_filter(char *buf, int enable) +static void __init +set_ftrace_early_filter(struct ftrace_ops *ops, char *buf, int enable) { char *func; while (buf) { func = strsep(&buf, ","); - ftrace_set_regex(func, strlen(func), 0, enable); + ftrace_set_regex(ops, func, strlen(func), 0, enable); } } static void __init set_ftrace_early_filters(void) { if (ftrace_filter_buf[0]) - set_ftrace_early_filter(ftrace_filter_buf, 1); + set_ftrace_early_filter(&global_ops, ftrace_filter_buf, 1); if (ftrace_notrace_buf[0]) - set_ftrace_early_filter(ftrace_notrace_buf, 0); + set_ftrace_early_filter(&global_ops, ftrace_notrace_buf, 0); #ifdef CONFIG_FUNCTION_GRAPH_TRACER if (ftrace_graph_buf[0]) set_ftrace_early_graph(ftrace_graph_buf); @@ -2393,11 +2998,14 @@ static void __init set_ftrace_early_filters(void) } static int -ftrace_regex_release(struct inode *inode, struct file *file, int enable) +ftrace_regex_release(struct inode *inode, struct file *file) { struct seq_file *m = (struct seq_file *)file->private_data; struct ftrace_iterator *iter; + struct ftrace_hash **orig_hash; struct trace_parser *parser; + int filter_hash; + int ret; mutex_lock(&ftrace_regex_lock); if (file->f_mode & FMODE_READ) { @@ -2410,33 +3018,41 @@ ftrace_regex_release(struct inode *inode, struct file *file, int enable) parser = &iter->parser; if (trace_parser_loaded(parser)) { parser->buffer[parser->idx] = 0; - ftrace_match_records(parser->buffer, parser->idx, enable); + ftrace_match_records(iter->hash, parser->buffer, parser->idx); } - mutex_lock(&ftrace_lock); - if (ftrace_start_up && ftrace_enabled) - ftrace_run_update_code(FTRACE_ENABLE_CALLS); - mutex_unlock(&ftrace_lock); - trace_parser_put(parser); + + if (file->f_mode & FMODE_WRITE) { + filter_hash = !!(iter->flags & FTRACE_ITER_FILTER); + + if (filter_hash) + orig_hash = &iter->ops->filter_hash; + else + orig_hash = &iter->ops->notrace_hash; + + mutex_lock(&ftrace_lock); + /* + * Remove the current set, update the hash and add + * them back. + */ + ftrace_hash_rec_disable(iter->ops, filter_hash); + ret = ftrace_hash_move(orig_hash, iter->hash); + if (!ret) { + ftrace_hash_rec_enable(iter->ops, filter_hash); + if (iter->ops->flags & FTRACE_OPS_FL_ENABLED + && ftrace_enabled) + ftrace_run_update_code(FTRACE_ENABLE_CALLS); + } + mutex_unlock(&ftrace_lock); + } + free_ftrace_hash(iter->hash); kfree(iter); mutex_unlock(&ftrace_regex_lock); return 0; } -static int -ftrace_filter_release(struct inode *inode, struct file *file) -{ - return ftrace_regex_release(inode, file, 1); -} - -static int -ftrace_notrace_release(struct inode *inode, struct file *file) -{ - return ftrace_regex_release(inode, file, 0); -} - static const struct file_operations ftrace_avail_fops = { .open = ftrace_avail_open, .read = seq_read, @@ -2444,8 +3060,8 @@ static const struct file_operations ftrace_avail_fops = { .release = seq_release_private, }; -static const struct file_operations ftrace_failures_fops = { - .open = ftrace_failures_open, +static const struct file_operations ftrace_enabled_fops = { + .open = ftrace_enabled_open, .read = seq_read, .llseek = seq_lseek, .release = seq_release_private, @@ -2456,7 +3072,7 @@ static const struct file_operations ftrace_filter_fops = { .read = seq_read, .write = ftrace_filter_write, .llseek = ftrace_regex_lseek, - .release = ftrace_filter_release, + .release = ftrace_regex_release, }; static const struct file_operations ftrace_notrace_fops = { @@ -2464,7 +3080,7 @@ static const struct file_operations ftrace_notrace_fops = { .read = seq_read, .write = ftrace_notrace_write, .llseek = ftrace_regex_lseek, - .release = ftrace_notrace_release, + .release = ftrace_regex_release, }; #ifdef CONFIG_FUNCTION_GRAPH_TRACER @@ -2573,9 +3189,6 @@ ftrace_set_func(unsigned long *array, int *idx, char *buffer) bool exists; int i; - if (ftrace_disabled) - return -ENODEV; - /* decode regex */ type = filter_parse_regex(buffer, strlen(buffer), &search, ¬); if (!not && *idx >= FTRACE_GRAPH_MAX_FUNCS) @@ -2584,12 +3197,18 @@ ftrace_set_func(unsigned long *array, int *idx, char *buffer) search_len = strlen(search); mutex_lock(&ftrace_lock); + + if (unlikely(ftrace_disabled)) { + mutex_unlock(&ftrace_lock); + return -ENODEV; + } + do_for_each_ftrace_rec(pg, rec) { - if (rec->flags & (FTRACE_FL_FAILED | FTRACE_FL_FREE)) + if (rec->flags & FTRACE_FL_FREE) continue; - if (ftrace_match_record(rec, search, search_len, type)) { + if (ftrace_match_record(rec, NULL, search, search_len, type)) { /* if it is in the array */ exists = false; for (i = 0; i < *idx; i++) { @@ -2679,8 +3298,8 @@ static __init int ftrace_init_dyn_debugfs(struct dentry *d_tracer) trace_create_file("available_filter_functions", 0444, d_tracer, NULL, &ftrace_avail_fops); - trace_create_file("failures", 0444, - d_tracer, NULL, &ftrace_failures_fops); + trace_create_file("enabled_functions", 0444, + d_tracer, NULL, &ftrace_enabled_fops); trace_create_file("set_ftrace_filter", 0644, d_tracer, NULL, &ftrace_filter_fops); @@ -2703,7 +3322,6 @@ static int ftrace_process_locs(struct module *mod, { unsigned long *p; unsigned long addr; - unsigned long flags; mutex_lock(&ftrace_lock); p = start; @@ -2720,10 +3338,7 @@ static int ftrace_process_locs(struct module *mod, ftrace_record_ip(addr); } - /* disable interrupts to prevent kstop machine */ - local_irq_save(flags); ftrace_update_code(mod); - local_irq_restore(flags); mutex_unlock(&ftrace_lock); return 0; @@ -2735,10 +3350,11 @@ void ftrace_release_mod(struct module *mod) struct dyn_ftrace *rec; struct ftrace_page *pg; + mutex_lock(&ftrace_lock); + if (ftrace_disabled) - return; + goto out_unlock; - mutex_lock(&ftrace_lock); do_for_each_ftrace_rec(pg, rec) { if (within_module_core(rec->ip, mod)) { /* @@ -2749,6 +3365,7 @@ void ftrace_release_mod(struct module *mod) ftrace_free_rec(rec); } } while_for_each_ftrace_rec(); + out_unlock: mutex_unlock(&ftrace_lock); } @@ -2835,6 +3452,10 @@ void __init ftrace_init(void) #else +static struct ftrace_ops global_ops = { + .func = ftrace_stub, +}; + static int __init ftrace_nodyn_init(void) { ftrace_enabled = 1; @@ -2845,12 +3466,38 @@ device_initcall(ftrace_nodyn_init); static inline int ftrace_init_dyn_debugfs(struct dentry *d_tracer) { return 0; } static inline void ftrace_startup_enable(int command) { } /* Keep as macros so we do not need to define the commands */ -# define ftrace_startup(command) do { } while (0) -# define ftrace_shutdown(command) do { } while (0) +# define ftrace_startup(ops, command) do { } while (0) +# define ftrace_shutdown(ops, command) do { } while (0) # define ftrace_startup_sysctl() do { } while (0) # define ftrace_shutdown_sysctl() do { } while (0) + +static inline int +ftrace_ops_test(struct ftrace_ops *ops, unsigned long ip) +{ + return 1; +} + #endif /* CONFIG_DYNAMIC_FTRACE */ +static void +ftrace_ops_list_func(unsigned long ip, unsigned long parent_ip) +{ + struct ftrace_ops *op; + + /* + * Some of the ops may be dynamically allocated, + * they must be freed after a synchronize_sched(). + */ + preempt_disable_notrace(); + op = rcu_dereference_raw(ftrace_ops_list); + while (op != &ftrace_list_end) { + if (ftrace_ops_test(op, ip)) + op->func(ip, parent_ip); + op = rcu_dereference_raw(op->next); + }; + preempt_enable_notrace(); +} + static void clear_ftrace_swapper(void) { struct task_struct *p; @@ -3143,19 +3790,23 @@ void ftrace_kill(void) */ int register_ftrace_function(struct ftrace_ops *ops) { - int ret; - - if (unlikely(ftrace_disabled)) - return -1; + int ret = -1; mutex_lock(&ftrace_lock); + if (unlikely(ftrace_disabled)) + goto out_unlock; + ret = __register_ftrace_function(ops); - ftrace_startup(0); + if (!ret) + ftrace_startup(ops, 0); + + out_unlock: mutex_unlock(&ftrace_lock); return ret; } +EXPORT_SYMBOL_GPL(register_ftrace_function); /** * unregister_ftrace_function - unregister a function for profiling. @@ -3169,25 +3820,27 @@ int unregister_ftrace_function(struct ftrace_ops *ops) mutex_lock(&ftrace_lock); ret = __unregister_ftrace_function(ops); - ftrace_shutdown(0); + if (!ret) + ftrace_shutdown(ops, 0); mutex_unlock(&ftrace_lock); return ret; } +EXPORT_SYMBOL_GPL(unregister_ftrace_function); int ftrace_enable_sysctl(struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos) { - int ret; - - if (unlikely(ftrace_disabled)) - return -ENODEV; + int ret = -ENODEV; mutex_lock(&ftrace_lock); - ret = proc_dointvec(table, write, buffer, lenp, ppos); + if (unlikely(ftrace_disabled)) + goto out; + + ret = proc_dointvec(table, write, buffer, lenp, ppos); if (ret || !write || (last_ftrace_enabled == !!ftrace_enabled)) goto out; @@ -3199,11 +3852,11 @@ ftrace_enable_sysctl(struct ctl_table *table, int write, ftrace_startup_sysctl(); /* we are starting ftrace again */ - if (ftrace_list != &ftrace_list_end) { - if (ftrace_list->next == &ftrace_list_end) - ftrace_trace_function = ftrace_list->func; + if (ftrace_ops_list != &ftrace_list_end) { + if (ftrace_ops_list->next == &ftrace_list_end) + ftrace_trace_function = ftrace_ops_list->func; else - ftrace_trace_function = ftrace_list_func; + ftrace_trace_function = ftrace_ops_list_func; } } else { @@ -3392,7 +4045,7 @@ int register_ftrace_graph(trace_func_graph_ret_t retfunc, ftrace_graph_return = retfunc; ftrace_graph_entry = entryfunc; - ftrace_startup(FTRACE_START_FUNC_RET); + ftrace_startup(&global_ops, FTRACE_START_FUNC_RET); out: mutex_unlock(&ftrace_lock); @@ -3409,7 +4062,7 @@ void unregister_ftrace_graph(void) ftrace_graph_active--; ftrace_graph_return = (trace_func_graph_ret_t)ftrace_stub; ftrace_graph_entry = ftrace_graph_entry_stub; - ftrace_shutdown(FTRACE_STOP_FUNC_RET); + ftrace_shutdown(&global_ops, FTRACE_STOP_FUNC_RET); unregister_pm_notifier(&ftrace_suspend_notifier); unregister_trace_sched_switch(ftrace_graph_probe_sched_switch, NULL); diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index d38c16a06a6..ee9c921d7f2 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -1110,6 +1110,7 @@ tracing_generic_entry_update(struct trace_entry *entry, unsigned long flags, entry->preempt_count = pc & 0xff; entry->pid = (tsk) ? tsk->pid : 0; + entry->padding = 0; entry->flags = #ifdef CONFIG_TRACE_IRQFLAGS_SUPPORT (irqs_disabled_flags(flags) ? TRACE_FLAG_IRQS_OFF : 0) | @@ -2013,9 +2014,10 @@ enum print_line_t print_trace_line(struct trace_iterator *iter) { enum print_line_t ret; - if (iter->lost_events) - trace_seq_printf(&iter->seq, "CPU:%d [LOST %lu EVENTS]\n", - iter->cpu, iter->lost_events); + if (iter->lost_events && + !trace_seq_printf(&iter->seq, "CPU:%d [LOST %lu EVENTS]\n", + iter->cpu, iter->lost_events)) + return TRACE_TYPE_PARTIAL_LINE; if (iter->trace && iter->trace->print_line) { ret = iter->trace->print_line(iter); @@ -3229,6 +3231,14 @@ waitagain: if (iter->seq.len >= cnt) break; + + /* + * Setting the full flag means we reached the trace_seq buffer + * size and we should leave by partial output condition above. + * One of the trace_seq_* functions is not used properly. + */ + WARN_ONCE(iter->seq.full, "full flag set for trace type %d", + iter->ent->type); } trace_access_unlock(iter->cpu_file); trace_event_read_unlock(); diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index 5e9dfc6286d..6b69c4bd306 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -419,6 +419,8 @@ extern void trace_find_cmdline(int pid, char comm[]); extern unsigned long ftrace_update_tot_cnt; #define DYN_FTRACE_TEST_NAME trace_selftest_dynamic_test_func extern int DYN_FTRACE_TEST_NAME(void); +#define DYN_FTRACE_TEST_NAME2 trace_selftest_dynamic_test_func2 +extern int DYN_FTRACE_TEST_NAME2(void); #endif extern int ring_buffer_expanded; diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c index e88f74fe1d4..2fe11034135 100644 --- a/kernel/trace/trace_events.c +++ b/kernel/trace/trace_events.c @@ -116,6 +116,7 @@ static int trace_define_common_fields(void) __common_field(unsigned char, flags); __common_field(unsigned char, preempt_count); __common_field(int, pid); + __common_field(int, padding); return ret; } diff --git a/kernel/trace/trace_functions.c b/kernel/trace/trace_functions.c index 16aee4d44e8..8d0e1cc4e97 100644 --- a/kernel/trace/trace_functions.c +++ b/kernel/trace/trace_functions.c @@ -149,11 +149,13 @@ function_stack_trace_call(unsigned long ip, unsigned long parent_ip) static struct ftrace_ops trace_ops __read_mostly = { .func = function_trace_call, + .flags = FTRACE_OPS_FL_GLOBAL, }; static struct ftrace_ops trace_stack_ops __read_mostly = { .func = function_stack_trace_call, + .flags = FTRACE_OPS_FL_GLOBAL, }; /* Our two options */ diff --git a/kernel/trace/trace_irqsoff.c b/kernel/trace/trace_irqsoff.c index a4969b47afc..c77424be284 100644 --- a/kernel/trace/trace_irqsoff.c +++ b/kernel/trace/trace_irqsoff.c @@ -153,6 +153,7 @@ irqsoff_tracer_call(unsigned long ip, unsigned long parent_ip) static struct ftrace_ops trace_ops __read_mostly = { .func = irqsoff_tracer_call, + .flags = FTRACE_OPS_FL_GLOBAL, }; #endif /* CONFIG_FUNCTION_TRACER */ diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c index 35d55a38614..f925c45f0af 100644 --- a/kernel/trace/trace_kprobe.c +++ b/kernel/trace/trace_kprobe.c @@ -53,7 +53,6 @@ const char *reserved_field_names[] = { "common_preempt_count", "common_pid", "common_tgid", - "common_lock_depth", FIELD_STRING_IP, FIELD_STRING_RETIP, FIELD_STRING_FUNC, diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c index 456be9063c2..cf535ccedc8 100644 --- a/kernel/trace/trace_output.c +++ b/kernel/trace/trace_output.c @@ -830,6 +830,9 @@ EXPORT_SYMBOL_GPL(unregister_ftrace_event); enum print_line_t trace_nop_print(struct trace_iterator *iter, int flags, struct trace_event *event) { + if (!trace_seq_printf(&iter->seq, "type: %d\n", iter->ent->type)) + return TRACE_TYPE_PARTIAL_LINE; + return TRACE_TYPE_HANDLED; } diff --git a/kernel/trace/trace_printk.c b/kernel/trace/trace_printk.c index 2547d8813cf..dff763b7baf 100644 --- a/kernel/trace/trace_printk.c +++ b/kernel/trace/trace_printk.c @@ -32,7 +32,7 @@ static DEFINE_MUTEX(btrace_mutex); struct trace_bprintk_fmt { struct list_head list; - char fmt[0]; + const char *fmt; }; static inline struct trace_bprintk_fmt *lookup_format(const char *fmt) @@ -49,6 +49,7 @@ static void hold_module_trace_bprintk_format(const char **start, const char **end) { const char **iter; + char *fmt; mutex_lock(&btrace_mutex); for (iter = start; iter < end; iter++) { @@ -58,14 +59,18 @@ void hold_module_trace_bprintk_format(const char **start, const char **end) continue; } - tb_fmt = kmalloc(offsetof(struct trace_bprintk_fmt, fmt) - + strlen(*iter) + 1, GFP_KERNEL); - if (tb_fmt) { + tb_fmt = kmalloc(sizeof(*tb_fmt), GFP_KERNEL); + if (tb_fmt) + fmt = kmalloc(strlen(*iter) + 1, GFP_KERNEL); + if (tb_fmt && fmt) { list_add_tail(&tb_fmt->list, &trace_bprintk_fmt_list); - strcpy(tb_fmt->fmt, *iter); + strcpy(fmt, *iter); + tb_fmt->fmt = fmt; *iter = tb_fmt->fmt; - } else + } else { + kfree(tb_fmt); *iter = NULL; + } } mutex_unlock(&btrace_mutex); } @@ -84,6 +89,76 @@ static int module_trace_bprintk_format_notify(struct notifier_block *self, return 0; } +/* + * The debugfs/tracing/printk_formats file maps the addresses with + * the ASCII formats that are used in the bprintk events in the + * buffer. For userspace tools to be able to decode the events from + * the buffer, they need to be able to map the address with the format. + * + * The addresses of the bprintk formats are in their own section + * __trace_printk_fmt. But for modules we copy them into a link list. + * The code to print the formats and their addresses passes around the + * address of the fmt string. If the fmt address passed into the seq + * functions is within the kernel core __trace_printk_fmt section, then + * it simply uses the next pointer in the list. + * + * When the fmt pointer is outside the kernel core __trace_printk_fmt + * section, then we need to read the link list pointers. The trick is + * we pass the address of the string to the seq function just like + * we do for the kernel core formats. To get back the structure that + * holds the format, we simply use containerof() and then go to the + * next format in the list. + */ +static const char ** +find_next_mod_format(int start_index, void *v, const char **fmt, loff_t *pos) +{ + struct trace_bprintk_fmt *mod_fmt; + + if (list_empty(&trace_bprintk_fmt_list)) + return NULL; + + /* + * v will point to the address of the fmt record from t_next + * v will be NULL from t_start. + * If this is the first pointer or called from start + * then we need to walk the list. + */ + if (!v || start_index == *pos) { + struct trace_bprintk_fmt *p; + + /* search the module list */ + list_for_each_entry(p, &trace_bprintk_fmt_list, list) { + if (start_index == *pos) + return &p->fmt; + start_index++; + } + /* pos > index */ + return NULL; + } + + /* + * v points to the address of the fmt field in the mod list + * structure that holds the module print format. + */ + mod_fmt = container_of(v, typeof(*mod_fmt), fmt); + if (mod_fmt->list.next == &trace_bprintk_fmt_list) + return NULL; + + mod_fmt = container_of(mod_fmt->list.next, typeof(*mod_fmt), list); + + return &mod_fmt->fmt; +} + +static void format_mod_start(void) +{ + mutex_lock(&btrace_mutex); +} + +static void format_mod_stop(void) +{ + mutex_unlock(&btrace_mutex); +} + #else /* !CONFIG_MODULES */ __init static int module_trace_bprintk_format_notify(struct notifier_block *self, @@ -91,6 +166,13 @@ module_trace_bprintk_format_notify(struct notifier_block *self, { return 0; } +static inline const char ** +find_next_mod_format(int start_index, void *v, const char **fmt, loff_t *pos) +{ + return NULL; +} +static inline void format_mod_start(void) { } +static inline void format_mod_stop(void) { } #endif /* CONFIG_MODULES */ @@ -153,20 +235,33 @@ int __ftrace_vprintk(unsigned long ip, const char *fmt, va_list ap) } EXPORT_SYMBOL_GPL(__ftrace_vprintk); +static const char **find_next(void *v, loff_t *pos) +{ + const char **fmt = v; + int start_index; + + if (!fmt) + fmt = __start___trace_bprintk_fmt + *pos; + + start_index = __stop___trace_bprintk_fmt - __start___trace_bprintk_fmt; + + if (*pos < start_index) + return fmt; + + return find_next_mod_format(start_index, v, fmt, pos); +} + static void * t_start(struct seq_file *m, loff_t *pos) { - const char **fmt = __start___trace_bprintk_fmt + *pos; - - if ((unsigned long)fmt >= (unsigned long)__stop___trace_bprintk_fmt) - return NULL; - return fmt; + format_mod_start(); + return find_next(NULL, pos); } static void *t_next(struct seq_file *m, void * v, loff_t *pos) { (*pos)++; - return t_start(m, pos); + return find_next(v, pos); } static int t_show(struct seq_file *m, void *v) @@ -205,6 +300,7 @@ static int t_show(struct seq_file *m, void *v) static void t_stop(struct seq_file *m, void *p) { + format_mod_stop(); } static const struct seq_operations show_format_seq_ops = { diff --git a/kernel/trace/trace_sched_wakeup.c b/kernel/trace/trace_sched_wakeup.c index 7319559ed59..f029dd4fd2c 100644 --- a/kernel/trace/trace_sched_wakeup.c +++ b/kernel/trace/trace_sched_wakeup.c @@ -129,6 +129,7 @@ wakeup_tracer_call(unsigned long ip, unsigned long parent_ip) static struct ftrace_ops trace_ops __read_mostly = { .func = wakeup_tracer_call, + .flags = FTRACE_OPS_FL_GLOBAL, }; #endif /* CONFIG_FUNCTION_TRACER */ diff --git a/kernel/trace/trace_selftest.c b/kernel/trace/trace_selftest.c index 659732eba07..288541f977f 100644 --- a/kernel/trace/trace_selftest.c +++ b/kernel/trace/trace_selftest.c @@ -101,6 +101,206 @@ static inline void warn_failed_init_tracer(struct tracer *trace, int init_ret) #ifdef CONFIG_DYNAMIC_FTRACE +static int trace_selftest_test_probe1_cnt; +static void trace_selftest_test_probe1_func(unsigned long ip, + unsigned long pip) +{ + trace_selftest_test_probe1_cnt++; +} + +static int trace_selftest_test_probe2_cnt; +static void trace_selftest_test_probe2_func(unsigned long ip, + unsigned long pip) +{ + trace_selftest_test_probe2_cnt++; +} + +static int trace_selftest_test_probe3_cnt; +static void trace_selftest_test_probe3_func(unsigned long ip, + unsigned long pip) +{ + trace_selftest_test_probe3_cnt++; +} + +static int trace_selftest_test_global_cnt; +static void trace_selftest_test_global_func(unsigned long ip, + unsigned long pip) +{ + trace_selftest_test_global_cnt++; +} + +static int trace_selftest_test_dyn_cnt; +static void trace_selftest_test_dyn_func(unsigned long ip, + unsigned long pip) +{ + trace_selftest_test_dyn_cnt++; +} + +static struct ftrace_ops test_probe1 = { + .func = trace_selftest_test_probe1_func, +}; + +static struct ftrace_ops test_probe2 = { + .func = trace_selftest_test_probe2_func, +}; + +static struct ftrace_ops test_probe3 = { + .func = trace_selftest_test_probe3_func, +}; + +static struct ftrace_ops test_global = { + .func = trace_selftest_test_global_func, + .flags = FTRACE_OPS_FL_GLOBAL, +}; + +static void print_counts(void) +{ + printk("(%d %d %d %d %d) ", + trace_selftest_test_probe1_cnt, + trace_selftest_test_probe2_cnt, + trace_selftest_test_probe3_cnt, + trace_selftest_test_global_cnt, + trace_selftest_test_dyn_cnt); +} + +static void reset_counts(void) +{ + trace_selftest_test_probe1_cnt = 0; + trace_selftest_test_probe2_cnt = 0; + trace_selftest_test_probe3_cnt = 0; + trace_selftest_test_global_cnt = 0; + trace_selftest_test_dyn_cnt = 0; +} + +static int trace_selftest_ops(int cnt) +{ + int save_ftrace_enabled = ftrace_enabled; + struct ftrace_ops *dyn_ops; + char *func1_name; + char *func2_name; + int len1; + int len2; + int ret = -1; + + printk(KERN_CONT "PASSED\n"); + pr_info("Testing dynamic ftrace ops #%d: ", cnt); + + ftrace_enabled = 1; + reset_counts(); + + /* Handle PPC64 '.' name */ + func1_name = "*" __stringify(DYN_FTRACE_TEST_NAME); + func2_name = "*" __stringify(DYN_FTRACE_TEST_NAME2); + len1 = strlen(func1_name); + len2 = strlen(func2_name); + + /* + * Probe 1 will trace function 1. + * Probe 2 will trace function 2. + * Probe 3 will trace functions 1 and 2. + */ + ftrace_set_filter(&test_probe1, func1_name, len1, 1); + ftrace_set_filter(&test_probe2, func2_name, len2, 1); + ftrace_set_filter(&test_probe3, func1_name, len1, 1); + ftrace_set_filter(&test_probe3, func2_name, len2, 0); + + register_ftrace_function(&test_probe1); + register_ftrace_function(&test_probe2); + register_ftrace_function(&test_probe3); + register_ftrace_function(&test_global); + + DYN_FTRACE_TEST_NAME(); + + print_counts(); + + if (trace_selftest_test_probe1_cnt != 1) + goto out; + if (trace_selftest_test_probe2_cnt != 0) + goto out; + if (trace_selftest_test_probe3_cnt != 1) + goto out; + if (trace_selftest_test_global_cnt == 0) + goto out; + + DYN_FTRACE_TEST_NAME2(); + + print_counts(); + + if (trace_selftest_test_probe1_cnt != 1) + goto out; + if (trace_selftest_test_probe2_cnt != 1) + goto out; + if (trace_selftest_test_probe3_cnt != 2) + goto out; + + /* Add a dynamic probe */ + dyn_ops = kzalloc(sizeof(*dyn_ops), GFP_KERNEL); + if (!dyn_ops) { + printk("MEMORY ERROR "); + goto out; + } + + dyn_ops->func = trace_selftest_test_dyn_func; + + register_ftrace_function(dyn_ops); + + trace_selftest_test_global_cnt = 0; + + DYN_FTRACE_TEST_NAME(); + + print_counts(); + + if (trace_selftest_test_probe1_cnt != 2) + goto out_free; + if (trace_selftest_test_probe2_cnt != 1) + goto out_free; + if (trace_selftest_test_probe3_cnt != 3) + goto out_free; + if (trace_selftest_test_global_cnt == 0) + goto out; + if (trace_selftest_test_dyn_cnt == 0) + goto out_free; + + DYN_FTRACE_TEST_NAME2(); + + print_counts(); + + if (trace_selftest_test_probe1_cnt != 2) + goto out_free; + if (trace_selftest_test_probe2_cnt != 2) + goto out_free; + if (trace_selftest_test_probe3_cnt != 4) + goto out_free; + + ret = 0; + out_free: + unregister_ftrace_function(dyn_ops); + kfree(dyn_ops); + + out: + /* Purposely unregister in the same order */ + unregister_ftrace_function(&test_probe1); + unregister_ftrace_function(&test_probe2); + unregister_ftrace_function(&test_probe3); + unregister_ftrace_function(&test_global); + + /* Make sure everything is off */ + reset_counts(); + DYN_FTRACE_TEST_NAME(); + DYN_FTRACE_TEST_NAME(); + + if (trace_selftest_test_probe1_cnt || + trace_selftest_test_probe2_cnt || + trace_selftest_test_probe3_cnt || + trace_selftest_test_global_cnt || + trace_selftest_test_dyn_cnt) + ret = -1; + + ftrace_enabled = save_ftrace_enabled; + + return ret; +} + /* Test dynamic code modification and ftrace filters */ int trace_selftest_startup_dynamic_tracing(struct tracer *trace, struct trace_array *tr, @@ -131,7 +331,7 @@ int trace_selftest_startup_dynamic_tracing(struct tracer *trace, func_name = "*" __stringify(DYN_FTRACE_TEST_NAME); /* filter only on our function */ - ftrace_set_filter(func_name, strlen(func_name), 1); + ftrace_set_global_filter(func_name, strlen(func_name), 1); /* enable tracing */ ret = tracer_init(trace, tr); @@ -166,22 +366,30 @@ int trace_selftest_startup_dynamic_tracing(struct tracer *trace, /* check the trace buffer */ ret = trace_test_buffer(tr, &count); - trace->reset(tr); tracing_start(); /* we should only have one item */ if (!ret && count != 1) { + trace->reset(tr); printk(KERN_CONT ".. filter failed count=%ld ..", count); ret = -1; goto out; } + /* Test the ops with global tracing running */ + ret = trace_selftest_ops(1); + trace->reset(tr); + out: ftrace_enabled = save_ftrace_enabled; tracer_enabled = save_tracer_enabled; /* Enable tracing on all functions again */ - ftrace_set_filter(NULL, 0, 1); + ftrace_set_global_filter(NULL, 0, 1); + + /* Test the ops with global tracing off */ + if (!ret) + ret = trace_selftest_ops(2); return ret; } diff --git a/kernel/trace/trace_selftest_dynamic.c b/kernel/trace/trace_selftest_dynamic.c index 54dd77cce5b..b4c475a0a48 100644 --- a/kernel/trace/trace_selftest_dynamic.c +++ b/kernel/trace/trace_selftest_dynamic.c @@ -5,3 +5,9 @@ int DYN_FTRACE_TEST_NAME(void) /* used to call mcount */ return 0; } + +int DYN_FTRACE_TEST_NAME2(void) +{ + /* used to call mcount */ + return 0; +} diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c index 4c5dead0c23..b0b53b8e4c2 100644 --- a/kernel/trace/trace_stack.c +++ b/kernel/trace/trace_stack.c @@ -133,6 +133,7 @@ stack_trace_call(unsigned long ip, unsigned long parent_ip) static struct ftrace_ops trace_ops __read_mostly = { .func = stack_trace_call, + .flags = FTRACE_OPS_FL_GLOBAL, }; static ssize_t diff --git a/kernel/tracepoint.c b/kernel/tracepoint.c index 68187af4889..b219f1449c5 100644 --- a/kernel/tracepoint.c +++ b/kernel/tracepoint.c @@ -251,9 +251,9 @@ static void set_tracepoint(struct tracepoint_entry **entry, { WARN_ON(strcmp((*entry)->name, elem->name) != 0); - if (elem->regfunc && !elem->state && active) + if (elem->regfunc && !jump_label_enabled(&elem->key) && active) elem->regfunc(); - else if (elem->unregfunc && elem->state && !active) + else if (elem->unregfunc && jump_label_enabled(&elem->key) && !active) elem->unregfunc(); /* @@ -264,13 +264,10 @@ static void set_tracepoint(struct tracepoint_entry **entry, * is used. */ rcu_assign_pointer(elem->funcs, (*entry)->funcs); - if (!elem->state && active) { - jump_label_enable(&elem->state); - elem->state = active; - } else if (elem->state && !active) { - jump_label_disable(&elem->state); - elem->state = active; - } + if (active && !jump_label_enabled(&elem->key)) + jump_label_inc(&elem->key); + else if (!active && jump_label_enabled(&elem->key)) + jump_label_dec(&elem->key); } /* @@ -281,13 +278,11 @@ static void set_tracepoint(struct tracepoint_entry **entry, */ static void disable_tracepoint(struct tracepoint *elem) { - if (elem->unregfunc && elem->state) + if (elem->unregfunc && jump_label_enabled(&elem->key)) elem->unregfunc(); - if (elem->state) { - jump_label_disable(&elem->state); - elem->state = 0; - } + if (jump_label_enabled(&elem->key)) + jump_label_dec(&elem->key); rcu_assign_pointer(elem->funcs, NULL); } diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 3aa278046d7..10ef6198114 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -238,6 +238,21 @@ config DETECT_HUNG_TASK enabled then all held locks will also be reported. This feature has negligible overhead. +config DEFAULT_HUNG_TASK_TIMEOUT + int "Default timeout for hung task detection (in seconds)" + depends on DETECT_HUNG_TASK + default 120 + help + This option controls the default timeout (in seconds) used + to determine when a task has become non-responsive and should + be considered hung. + + It can be adjusted at runtime via the kernel.hung_task_timeout + sysctl or by writing a value to /proc/sys/kernel/hung_task_timeout. + + A timeout of 0 disables the check. The default is two minutes. + Keeping the default should be fine in most cases. + config BOOTPARAM_HUNG_TASK_PANIC bool "Panic (Reboot) On Hung Tasks" depends on DETECT_HUNG_TASK @@ -398,9 +413,9 @@ config SLUB_STATS config DEBUG_KMEMLEAK bool "Kernel memory leak detector" depends on DEBUG_KERNEL && EXPERIMENTAL && !MEMORY_HOTPLUG && \ - (X86 || ARM || PPC || S390 || SPARC64 || SUPERH || MICROBLAZE || TILE) + (X86 || ARM || PPC || MIPS || S390 || SPARC64 || SUPERH || MICROBLAZE || TILE) - select DEBUG_FS if SYSFS + select DEBUG_FS select STACKTRACE if STACKTRACE_SUPPORT select KALLSYMS select CRC32 diff --git a/lib/Makefile b/lib/Makefile index ef0f2857115..4b49a249064 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -21,7 +21,8 @@ lib-y += kobject.o kref.o klist.o obj-y += bcd.o div64.o sort.o parser.o halfmd4.o debug_locks.o random32.o \ bust_spinlocks.o hexdump.o kasprintf.o bitmap.o scatterlist.o \ - string_helpers.o gcd.o lcm.o list_sort.o uuid.o flex_array.o + string_helpers.o gcd.o lcm.o list_sort.o uuid.o flex_array.o \ + bsearch.o obj-y += kstrtox.o obj-$(CONFIG_TEST_KSTRTOX) += test-kstrtox.o diff --git a/lib/bsearch.c b/lib/bsearch.c new file mode 100644 index 00000000000..5b54758e2af --- /dev/null +++ b/lib/bsearch.c @@ -0,0 +1,53 @@ +/* + * A generic implementation of binary search for the Linux kernel + * + * Copyright (C) 2008-2009 Ksplice, Inc. + * Author: Tim Abbott <tabbott@ksplice.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; version 2. + */ + +#include <linux/module.h> +#include <linux/bsearch.h> + +/* + * bsearch - binary search an array of elements + * @key: pointer to item being searched for + * @base: pointer to first element to search + * @num: number of elements + * @size: size of each element + * @cmp: pointer to comparison function + * + * This function does a binary search on the given array. The + * contents of the array should already be in ascending sorted order + * under the provided comparison function. + * + * Note that the key need not have the same type as the elements in + * the array, e.g. key could be a string and the comparison function + * could compare the string with the struct's name field. However, if + * the key and elements in the array are of the same type, you can use + * the same comparison function for both sort() and bsearch(). + */ +void *bsearch(const void *key, const void *base, size_t num, size_t size, + int (*cmp)(const void *key, const void *elt)) +{ + size_t start = 0, end = num; + int result; + + while (start < end) { + size_t mid = start + (end - start) / 2; + + result = cmp(key, base + mid * size); + if (result < 0) + end = mid; + else if (result > 0) + start = mid + 1; + else + return (void *)base + mid * size; + } + + return NULL; +} +EXPORT_SYMBOL(bsearch); diff --git a/lib/dma-debug.c b/lib/dma-debug.c index 4bfb0471f10..db07bfd9298 100644 --- a/lib/dma-debug.c +++ b/lib/dma-debug.c @@ -649,7 +649,7 @@ out_err: return -ENOMEM; } -static int device_dma_allocations(struct device *dev) +static int device_dma_allocations(struct device *dev, struct dma_debug_entry **out_entry) { struct dma_debug_entry *entry; unsigned long flags; @@ -660,8 +660,10 @@ static int device_dma_allocations(struct device *dev) for (i = 0; i < HASH_SIZE; ++i) { spin_lock(&dma_entry_hash[i].lock); list_for_each_entry(entry, &dma_entry_hash[i].list, list) { - if (entry->dev == dev) + if (entry->dev == dev) { count += 1; + *out_entry = entry; + } } spin_unlock(&dma_entry_hash[i].lock); } @@ -674,6 +676,7 @@ static int device_dma_allocations(struct device *dev) static int dma_debug_device_change(struct notifier_block *nb, unsigned long action, void *data) { struct device *dev = data; + struct dma_debug_entry *uninitialized_var(entry); int count; if (global_disable) @@ -681,12 +684,17 @@ static int dma_debug_device_change(struct notifier_block *nb, unsigned long acti switch (action) { case BUS_NOTIFY_UNBOUND_DRIVER: - count = device_dma_allocations(dev); + count = device_dma_allocations(dev, &entry); if (count == 0) break; - err_printk(dev, NULL, "DMA-API: device driver has pending " + err_printk(dev, entry, "DMA-API: device driver has pending " "DMA allocations while released from device " - "[count=%d]\n", count); + "[count=%d]\n" + "One of leaked entries details: " + "[device address=0x%016llx] [size=%llu bytes] " + "[mapped with %s] [mapped as %s]\n", + count, entry->dev_addr, entry->size, + dir2name[entry->direction], type2name[entry->type]); break; default: break; diff --git a/lib/flex_array.c b/lib/flex_array.c index c0ea40ba208..854b57bd7d9 100644 --- a/lib/flex_array.c +++ b/lib/flex_array.c @@ -232,10 +232,10 @@ EXPORT_SYMBOL(flex_array_clear); /** * flex_array_prealloc - guarantee that array space exists - * @fa: the flex array for which to preallocate parts - * @start: index of first array element for which space is allocated - * @end: index of last (inclusive) element for which space is allocated - * @flags: page allocation flags + * @fa: the flex array for which to preallocate parts + * @start: index of first array element for which space is allocated + * @nr_elements: number of elements for which space is allocated + * @flags: page allocation flags * * This will guarantee that no future calls to flex_array_put() * will allocate memory. It can be used if you are expecting to @@ -245,14 +245,24 @@ EXPORT_SYMBOL(flex_array_clear); * Locking must be provided by the caller. */ int flex_array_prealloc(struct flex_array *fa, unsigned int start, - unsigned int end, gfp_t flags) + unsigned int nr_elements, gfp_t flags) { int start_part; int end_part; int part_nr; + unsigned int end; struct flex_array_part *part; - if (start >= fa->total_nr_elements || end >= fa->total_nr_elements) + if (!start && !nr_elements) + return 0; + if (start >= fa->total_nr_elements) + return -ENOSPC; + if (!nr_elements) + return 0; + + end = start + nr_elements - 1; + + if (end >= fa->total_nr_elements) return -ENOSPC; if (elements_fit_in_base(fa)) return 0; @@ -343,6 +353,8 @@ int flex_array_shrink(struct flex_array *fa) int part_nr; int ret = 0; + if (!fa->total_nr_elements) + return 0; if (elements_fit_in_base(fa)) return ret; for (part_nr = 0; part_nr < FLEX_ARRAY_NR_BASE_PTRS; part_nr++) { diff --git a/lib/string.c b/lib/string.c index f71bead1be3..01fad9b203e 100644 --- a/lib/string.c +++ b/lib/string.c @@ -535,6 +535,35 @@ bool sysfs_streq(const char *s1, const char *s2) } EXPORT_SYMBOL(sysfs_streq); +/** + * strtobool - convert common user inputs into boolean values + * @s: input string + * @res: result + * + * This routine returns 0 iff the first character is one of 'Yy1Nn0'. + * Otherwise it will return -EINVAL. Value pointed to by res is + * updated upon finding a match. + */ +int strtobool(const char *s, bool *res) +{ + switch (s[0]) { + case 'y': + case 'Y': + case '1': + *res = true; + break; + case 'n': + case 'N': + case '0': + *res = false; + break; + default: + return -EINVAL; + } + return 0; +} +EXPORT_SYMBOL(strtobool); + #ifndef __HAVE_ARCH_MEMSET /** * memset - Fill a region of memory with the given value diff --git a/lib/vsprintf.c b/lib/vsprintf.c index bc0ac6b333d..dfd60192bc2 100644 --- a/lib/vsprintf.c +++ b/lib/vsprintf.c @@ -797,7 +797,7 @@ char *uuid_string(char *buf, char *end, const u8 *addr, return string(buf, end, uuid, spec); } -int kptr_restrict = 1; +int kptr_restrict __read_mostly; /* * Show a '%p' thing. A kernel extension is that the '%p' is followed diff --git a/mm/kmemleak.c b/mm/kmemleak.c index c1d5867543e..aacee45616f 100644 --- a/mm/kmemleak.c +++ b/mm/kmemleak.c @@ -1414,9 +1414,12 @@ static void *kmemleak_seq_next(struct seq_file *seq, void *v, loff_t *pos) ++(*pos); list_for_each_continue_rcu(n, &object_list) { - next_obj = list_entry(n, struct kmemleak_object, object_list); - if (get_object(next_obj)) + struct kmemleak_object *obj = + list_entry(n, struct kmemleak_object, object_list); + if (get_object(obj)) { + next_obj = obj; break; + } } put_object(prev_obj); diff --git a/mm/memory.c b/mm/memory.c index 607098d47e7..61e66f02656 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -1359,7 +1359,7 @@ split_fallthrough: */ mark_page_accessed(page); } - if (flags & FOLL_MLOCK) { + if ((flags & FOLL_MLOCK) && (vma->vm_flags & VM_LOCKED)) { /* * The preliminary mapping check is mainly to avoid the * pointless overhead of lock_page on the ZERO_PAGE @@ -1412,9 +1412,8 @@ no_page_table: static inline int stack_guard_page(struct vm_area_struct *vma, unsigned long addr) { - return (vma->vm_flags & VM_GROWSDOWN) && - (vma->vm_start == addr) && - !vma_stack_continue(vma->vm_prev, addr); + return stack_guard_page_start(vma, addr) || + stack_guard_page_end(vma, addr+PAGE_SIZE); } /** @@ -1551,13 +1550,6 @@ int __get_user_pages(struct task_struct *tsk, struct mm_struct *mm, continue; } - /* - * If we don't actually want the page itself, - * and it's the stack guard page, just skip it. - */ - if (!pages && stack_guard_page(vma, start)) - goto next_page; - do { struct page *page; unsigned int foll_flags = gup_flags; @@ -1574,6 +1566,11 @@ int __get_user_pages(struct task_struct *tsk, struct mm_struct *mm, int ret; unsigned int fault_flags = 0; + /* For mlock, just skip the stack guard page. */ + if (foll_flags & FOLL_MLOCK) { + if (stack_guard_page(vma, start)) + goto next_page; + } if (foll_flags & FOLL_WRITE) fault_flags |= FAULT_FLAG_WRITE; if (nonblocking) diff --git a/mm/mlock.c b/mm/mlock.c index 6b55e3efe0d..516b2c2ddd5 100644 --- a/mm/mlock.c +++ b/mm/mlock.c @@ -162,7 +162,7 @@ static long __mlock_vma_pages_range(struct vm_area_struct *vma, VM_BUG_ON(end > vma->vm_end); VM_BUG_ON(!rwsem_is_locked(&mm->mmap_sem)); - gup_flags = FOLL_TOUCH; + gup_flags = FOLL_TOUCH | FOLL_MLOCK; /* * We want to touch writable mappings with a write fault in order * to break COW, except for shared mappings because these don't COW @@ -178,9 +178,6 @@ static long __mlock_vma_pages_range(struct vm_area_struct *vma, if (vma->vm_flags & (VM_READ | VM_WRITE | VM_EXEC)) gup_flags |= FOLL_FORCE; - if (vma->vm_flags & VM_LOCKED) - gup_flags |= FOLL_MLOCK; - return __get_user_pages(current, mm, addr, nr_pages, gup_flags, NULL, NULL, nonblocking); } diff --git a/mm/mmap.c b/mm/mmap.c index e27e0cf0de0..772140c53ab 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -1767,10 +1767,13 @@ int expand_upwards(struct vm_area_struct *vma, unsigned long address) size = address - vma->vm_start; grow = (address - vma->vm_end) >> PAGE_SHIFT; - error = acct_stack_growth(vma, size, grow); - if (!error) { - vma->vm_end = address; - perf_event_mmap(vma); + error = -ENOMEM; + if (vma->vm_pgoff + (size >> PAGE_SHIFT) >= vma->vm_pgoff) { + error = acct_stack_growth(vma, size, grow); + if (!error) { + vma->vm_end = address; + perf_event_mmap(vma); + } } } vma_unlock_anon_vma(vma); diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 9f8a97b9a35..3f8bce264df 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -2317,6 +2317,21 @@ void free_pages(unsigned long addr, unsigned int order) EXPORT_SYMBOL(free_pages); +static void *make_alloc_exact(unsigned long addr, unsigned order, size_t size) +{ + if (addr) { + unsigned long alloc_end = addr + (PAGE_SIZE << order); + unsigned long used = addr + PAGE_ALIGN(size); + + split_page(virt_to_page((void *)addr), order); + while (used < alloc_end) { + free_page(used); + used += PAGE_SIZE; + } + } + return (void *)addr; +} + /** * alloc_pages_exact - allocate an exact number physically-contiguous pages. * @size: the number of bytes to allocate @@ -2336,22 +2351,33 @@ void *alloc_pages_exact(size_t size, gfp_t gfp_mask) unsigned long addr; addr = __get_free_pages(gfp_mask, order); - if (addr) { - unsigned long alloc_end = addr + (PAGE_SIZE << order); - unsigned long used = addr + PAGE_ALIGN(size); - - split_page(virt_to_page((void *)addr), order); - while (used < alloc_end) { - free_page(used); - used += PAGE_SIZE; - } - } - - return (void *)addr; + return make_alloc_exact(addr, order, size); } EXPORT_SYMBOL(alloc_pages_exact); /** + * alloc_pages_exact_nid - allocate an exact number of physically-contiguous + * pages on a node. + * @nid: the preferred node ID where memory should be allocated + * @size: the number of bytes to allocate + * @gfp_mask: GFP flags for the allocation + * + * Like alloc_pages_exact(), but try to allocate on node nid first before falling + * back. + * Note this is not alloc_pages_exact_node() which allocates on a specific node, + * but is not exact. + */ +void *alloc_pages_exact_nid(int nid, size_t size, gfp_t gfp_mask) +{ + unsigned order = get_order(size); + struct page *p = alloc_pages_node(nid, gfp_mask, order); + if (!p) + return NULL; + return make_alloc_exact((unsigned long)page_address(p), order, size); +} +EXPORT_SYMBOL(alloc_pages_exact_nid); + +/** * free_pages_exact - release memory allocated via alloc_pages_exact() * @virt: the value returned by alloc_pages_exact. * @size: size of allocation, same value as passed to alloc_pages_exact(). @@ -3564,7 +3590,7 @@ int zone_wait_table_init(struct zone *zone, unsigned long zone_size_pages) if (!slab_is_available()) { zone->wait_table = (wait_queue_head_t *) - alloc_bootmem_node(pgdat, alloc_size); + alloc_bootmem_node_nopanic(pgdat, alloc_size); } else { /* * This case means that a zone whose size was 0 gets new memory @@ -4141,7 +4167,8 @@ static void __init setup_usemap(struct pglist_data *pgdat, unsigned long usemapsize = usemap_size(zonesize); zone->pageblock_flags = NULL; if (usemapsize) - zone->pageblock_flags = alloc_bootmem_node(pgdat, usemapsize); + zone->pageblock_flags = alloc_bootmem_node_nopanic(pgdat, + usemapsize); } #else static inline void setup_usemap(struct pglist_data *pgdat, @@ -4307,7 +4334,7 @@ static void __init_refok alloc_node_mem_map(struct pglist_data *pgdat) size = (end - start) * sizeof(struct page); map = alloc_remap(pgdat->node_id, size); if (!map) - map = alloc_bootmem_node(pgdat, size); + map = alloc_bootmem_node_nopanic(pgdat, size); pgdat->node_mem_map = map + (pgdat->node_start_pfn - start); } #ifndef CONFIG_NEED_MULTIPLE_NODES diff --git a/mm/page_cgroup.c b/mm/page_cgroup.c index 99055010cec..2daadc322ba 100644 --- a/mm/page_cgroup.c +++ b/mm/page_cgroup.c @@ -134,7 +134,7 @@ static void *__init_refok alloc_page_cgroup(size_t size, int nid) { void *addr = NULL; - addr = alloc_pages_exact(size, GFP_KERNEL | __GFP_NOWARN); + addr = alloc_pages_exact_nid(nid, size, GFP_KERNEL | __GFP_NOWARN); if (addr) return addr; diff --git a/mm/shmem.c b/mm/shmem.c index 8fa27e4e582..dfc7069102e 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -852,7 +852,7 @@ static inline int shmem_find_swp(swp_entry_t entry, swp_entry_t *dir, swp_entry_ static int shmem_unuse_inode(struct shmem_inode_info *info, swp_entry_t entry, struct page *page) { - struct inode *inode; + struct address_space *mapping; unsigned long idx; unsigned long size; unsigned long limit; @@ -875,8 +875,10 @@ static int shmem_unuse_inode(struct shmem_inode_info *info, swp_entry_t entry, s if (size > SHMEM_NR_DIRECT) size = SHMEM_NR_DIRECT; offset = shmem_find_swp(entry, ptr, ptr+size); - if (offset >= 0) + if (offset >= 0) { + shmem_swp_balance_unmap(); goto found; + } if (!info->i_indirect) goto lost2; @@ -914,11 +916,11 @@ static int shmem_unuse_inode(struct shmem_inode_info *info, swp_entry_t entry, s if (size > ENTRIES_PER_PAGE) size = ENTRIES_PER_PAGE; offset = shmem_find_swp(entry, ptr, ptr+size); - shmem_swp_unmap(ptr); if (offset >= 0) { shmem_dir_unmap(dir); goto found; } + shmem_swp_unmap(ptr); } } lost1: @@ -928,8 +930,7 @@ lost2: return 0; found: idx += offset; - inode = igrab(&info->vfs_inode); - spin_unlock(&info->lock); + ptr += offset; /* * Move _head_ to start search for next from here. @@ -940,37 +941,18 @@ found: */ if (shmem_swaplist.next != &info->swaplist) list_move_tail(&shmem_swaplist, &info->swaplist); - mutex_unlock(&shmem_swaplist_mutex); - error = 1; - if (!inode) - goto out; /* - * Charge page using GFP_KERNEL while we can wait. - * Charged back to the user(not to caller) when swap account is used. - * add_to_page_cache() will be called with GFP_NOWAIT. + * We rely on shmem_swaplist_mutex, not only to protect the swaplist, + * but also to hold up shmem_evict_inode(): so inode cannot be freed + * beneath us (pagelock doesn't help until the page is in pagecache). */ - error = mem_cgroup_cache_charge(page, current->mm, GFP_KERNEL); - if (error) - goto out; - error = radix_tree_preload(GFP_KERNEL); - if (error) { - mem_cgroup_uncharge_cache_page(page); - goto out; - } - error = 1; - - spin_lock(&info->lock); - ptr = shmem_swp_entry(info, idx, NULL); - if (ptr && ptr->val == entry.val) { - error = add_to_page_cache_locked(page, inode->i_mapping, - idx, GFP_NOWAIT); - /* does mem_cgroup_uncharge_cache_page on error */ - } else /* we must compensate for our precharge above */ - mem_cgroup_uncharge_cache_page(page); + mapping = info->vfs_inode.i_mapping; + error = add_to_page_cache_locked(page, mapping, idx, GFP_NOWAIT); + /* which does mem_cgroup_uncharge_cache_page on error */ if (error == -EEXIST) { - struct page *filepage = find_get_page(inode->i_mapping, idx); + struct page *filepage = find_get_page(mapping, idx); error = 1; if (filepage) { /* @@ -990,14 +972,8 @@ found: swap_free(entry); error = 1; /* not an error, but entry was found */ } - if (ptr) - shmem_swp_unmap(ptr); + shmem_swp_unmap(ptr); spin_unlock(&info->lock); - radix_tree_preload_end(); -out: - unlock_page(page); - page_cache_release(page); - iput(inode); /* allows for NULL */ return error; } @@ -1009,6 +985,26 @@ int shmem_unuse(swp_entry_t entry, struct page *page) struct list_head *p, *next; struct shmem_inode_info *info; int found = 0; + int error; + + /* + * Charge page using GFP_KERNEL while we can wait, before taking + * the shmem_swaplist_mutex which might hold up shmem_writepage(). + * Charged back to the user (not to caller) when swap account is used. + * add_to_page_cache() will be called with GFP_NOWAIT. + */ + error = mem_cgroup_cache_charge(page, current->mm, GFP_KERNEL); + if (error) + goto out; + /* + * Try to preload while we can wait, to not make a habit of + * draining atomic reserves; but don't latch on to this cpu, + * it's okay if sometimes we get rescheduled after this. + */ + error = radix_tree_preload(GFP_KERNEL); + if (error) + goto uncharge; + radix_tree_preload_end(); mutex_lock(&shmem_swaplist_mutex); list_for_each_safe(p, next, &shmem_swaplist) { @@ -1016,17 +1012,19 @@ int shmem_unuse(swp_entry_t entry, struct page *page) found = shmem_unuse_inode(info, entry, page); cond_resched(); if (found) - goto out; + break; } mutex_unlock(&shmem_swaplist_mutex); - /* - * Can some race bring us here? We've been holding page lock, - * so I think not; but would rather try again later than BUG() - */ + +uncharge: + if (!found) + mem_cgroup_uncharge_cache_page(page); + if (found < 0) + error = found; +out: unlock_page(page); page_cache_release(page); -out: - return (found < 0) ? found : 0; + return error; } /* @@ -1064,7 +1062,25 @@ static int shmem_writepage(struct page *page, struct writeback_control *wbc) else swap.val = 0; + /* + * Add inode to shmem_unuse()'s list of swapped-out inodes, + * if it's not already there. Do it now because we cannot take + * mutex while holding spinlock, and must do so before the page + * is moved to swap cache, when its pagelock no longer protects + * the inode from eviction. But don't unlock the mutex until + * we've taken the spinlock, because shmem_unuse_inode() will + * prune a !swapped inode from the swaplist under both locks. + */ + if (swap.val) { + mutex_lock(&shmem_swaplist_mutex); + if (list_empty(&info->swaplist)) + list_add_tail(&info->swaplist, &shmem_swaplist); + } + spin_lock(&info->lock); + if (swap.val) + mutex_unlock(&shmem_swaplist_mutex); + if (index >= info->next_index) { BUG_ON(!(info->flags & SHMEM_TRUNCATE)); goto unlock; @@ -1084,21 +1100,10 @@ static int shmem_writepage(struct page *page, struct writeback_control *wbc) delete_from_page_cache(page); shmem_swp_set(info, entry, swap.val); shmem_swp_unmap(entry); - if (list_empty(&info->swaplist)) - inode = igrab(inode); - else - inode = NULL; spin_unlock(&info->lock); swap_shmem_alloc(swap); BUG_ON(page_mapped(page)); swap_writepage(page, wbc); - if (inode) { - mutex_lock(&shmem_swaplist_mutex); - /* move instead of add in case we're racing */ - list_move_tail(&info->swaplist, &shmem_swaplist); - mutex_unlock(&shmem_swaplist_mutex); - iput(inode); - } return 0; } @@ -1400,20 +1405,14 @@ repeat: if (sbinfo->max_blocks) { if (percpu_counter_compare(&sbinfo->used_blocks, sbinfo->max_blocks) >= 0 || - shmem_acct_block(info->flags)) { - spin_unlock(&info->lock); - error = -ENOSPC; - goto failed; - } + shmem_acct_block(info->flags)) + goto nospace; percpu_counter_inc(&sbinfo->used_blocks); spin_lock(&inode->i_lock); inode->i_blocks += BLOCKS_PER_PAGE; spin_unlock(&inode->i_lock); - } else if (shmem_acct_block(info->flags)) { - spin_unlock(&info->lock); - error = -ENOSPC; - goto failed; - } + } else if (shmem_acct_block(info->flags)) + goto nospace; if (!filepage) { int ret; @@ -1493,6 +1492,24 @@ done: error = 0; goto out; +nospace: + /* + * Perhaps the page was brought in from swap between find_lock_page + * and taking info->lock? We allow for that at add_to_page_cache_lru, + * but must also avoid reporting a spurious ENOSPC while working on a + * full tmpfs. (When filepage has been passed in to shmem_getpage, it + * is already in page cache, which prevents this race from occurring.) + */ + if (!filepage) { + struct page *page = find_get_page(mapping, idx); + if (page) { + spin_unlock(&info->lock); + page_cache_release(page); + goto repeat; + } + } + spin_unlock(&info->lock); + error = -ENOSPC; failed: if (*pagep != filepage) { unlock_page(filepage); diff --git a/mm/slub.c b/mm/slub.c index 94d2a33a866..9d2e5e46bf0 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -1940,7 +1940,7 @@ redo: * Since this is without lock semantics the protection is only against * code executing on this cpu *not* from access by other cpus. */ - if (unlikely(!this_cpu_cmpxchg_double( + if (unlikely(!irqsafe_cpu_cmpxchg_double( s->cpu_slab->freelist, s->cpu_slab->tid, object, tid, get_freepointer(s, object), next_tid(tid)))) { @@ -2145,7 +2145,7 @@ redo: set_freepointer(s, object, c->freelist); #ifdef CONFIG_CMPXCHG_LOCAL - if (unlikely(!this_cpu_cmpxchg_double( + if (unlikely(!irqsafe_cpu_cmpxchg_double( s->cpu_slab->freelist, s->cpu_slab->tid, c->freelist, tid, object, next_tid(tid)))) { diff --git a/mm/swap.c b/mm/swap.c index a448db377cb..5602f1a1b1e 100644 --- a/mm/swap.c +++ b/mm/swap.c @@ -396,6 +396,9 @@ static void lru_deactivate_fn(struct page *page, void *arg) if (!PageLRU(page)) return; + if (PageUnevictable(page)) + return; + /* Some processes are using the page */ if (page_mapped(page)) return; diff --git a/mm/vmscan.c b/mm/vmscan.c index f6b435c8007..8bfd45050a6 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -937,7 +937,7 @@ keep_lumpy: * back off and wait for congestion to clear because further reclaim * will encounter the same problem */ - if (nr_dirty == nr_congested && nr_dirty != 0) + if (nr_dirty && nr_dirty == nr_congested && scanning_global_lru(sc)) zone_set_flag(zone, ZONE_CONGESTED); free_page_list(&free_pages); diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c index 7850412f52b..0eb1a886b37 100644 --- a/net/8021q/vlan.c +++ b/net/8021q/vlan.c @@ -124,6 +124,9 @@ void unregister_vlan_dev(struct net_device *dev, struct list_head *head) grp->nr_vlans--; + if (vlan->flags & VLAN_FLAG_GVRP) + vlan_gvrp_request_leave(dev); + vlan_group_set_device(grp, vlan_id, NULL); if (!grp->killall) synchronize_net(); diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c index e34ea9e5e28..b2ff6c8d360 100644 --- a/net/8021q/vlan_dev.c +++ b/net/8021q/vlan_dev.c @@ -487,9 +487,6 @@ static int vlan_dev_stop(struct net_device *dev) struct vlan_dev_info *vlan = vlan_dev_info(dev); struct net_device *real_dev = vlan->real_dev; - if (vlan->flags & VLAN_FLAG_GVRP) - vlan_gvrp_request_leave(dev); - dev_mc_unsync(real_dev, dev); dev_uc_unsync(real_dev, dev); if (dev->flags & IFF_ALLMULTI) diff --git a/net/9p/client.c b/net/9p/client.c index 77367745be9..a9aa2dd6648 100644 --- a/net/9p/client.c +++ b/net/9p/client.c @@ -614,7 +614,7 @@ p9_client_rpc(struct p9_client *c, int8_t type, const char *fmt, ...) err = c->trans_mod->request(c, req); if (err < 0) { - if (err != -ERESTARTSYS) + if (err != -ERESTARTSYS && err != -EFAULT) c->status = Disconnected; goto reterr; } diff --git a/net/9p/protocol.c b/net/9p/protocol.c index b58a501cf3d..a873277cb99 100644 --- a/net/9p/protocol.c +++ b/net/9p/protocol.c @@ -674,6 +674,7 @@ int p9dirent_read(char *buf, int len, struct p9_dirent *dirent, } strcpy(dirent->d_name, nameptr); + kfree(nameptr); out: return fake_pdu.offset; diff --git a/net/9p/trans_common.c b/net/9p/trans_common.c index e883172f9aa..9a70ebdec56 100644 --- a/net/9p/trans_common.c +++ b/net/9p/trans_common.c @@ -63,7 +63,7 @@ p9_payload_gup(struct p9_req_t *req, size_t *pdata_off, int *pdata_len, int nr_pages, u8 rw) { uint32_t first_page_bytes = 0; - uint32_t pdata_mapped_pages; + int32_t pdata_mapped_pages; struct trans_rpage_info *rpinfo; *pdata_off = (__force size_t)req->tc->pubuf & (PAGE_SIZE-1); @@ -75,14 +75,9 @@ p9_payload_gup(struct p9_req_t *req, size_t *pdata_off, int *pdata_len, rpinfo = req->tc->private; pdata_mapped_pages = get_user_pages_fast((unsigned long)req->tc->pubuf, nr_pages, rw, &rpinfo->rp_data[0]); + if (pdata_mapped_pages <= 0) + return pdata_mapped_pages; - if (pdata_mapped_pages < 0) { - printk(KERN_ERR "get_user_pages_fast failed:%d udata:%p" - "nr_pages:%d\n", pdata_mapped_pages, - req->tc->pubuf, nr_pages); - pdata_mapped_pages = 0; - return -EIO; - } rpinfo->rp_nr_pages = pdata_mapped_pages; if (*pdata_off) { *pdata_len = first_page_bytes; diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c index 94954c74f6a..42fdffd1d76 100644 --- a/net/bluetooth/sco.c +++ b/net/bluetooth/sco.c @@ -369,15 +369,6 @@ static void __sco_sock_close(struct sock *sk) case BT_CONNECTED: case BT_CONFIG: - if (sco_pi(sk)->conn) { - sk->sk_state = BT_DISCONN; - sco_sock_set_timer(sk, SCO_DISCONN_TIMEOUT); - hci_conn_put(sco_pi(sk)->conn->hcon); - sco_pi(sk)->conn = NULL; - } else - sco_chan_del(sk, ECONNRESET); - break; - case BT_CONNECT: case BT_DISCONN: sco_chan_del(sk, ECONNRESET); diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c index f3bc322c589..74ef4d4846a 100644 --- a/net/bridge/br_netfilter.c +++ b/net/bridge/br_netfilter.c @@ -737,7 +737,7 @@ static unsigned int br_nf_forward_ip(unsigned int hook, struct sk_buff *skb, nf_bridge->mask |= BRNF_PKT_TYPE; } - if (br_parse_ip_options(skb)) + if (pf == PF_INET && br_parse_ip_options(skb)) return NF_DROP; /* The physdev module checks on this */ diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c index 893669caa8d..1a92b369c82 100644 --- a/net/bridge/netfilter/ebtables.c +++ b/net/bridge/netfilter/ebtables.c @@ -1766,7 +1766,7 @@ static int compat_table_info(const struct ebt_table_info *info, newinfo->entries_size = size; - xt_compat_init_offsets(AF_INET, info->nentries); + xt_compat_init_offsets(NFPROTO_BRIDGE, info->nentries); return EBT_ENTRY_ITERATE(entries, size, compat_calc_entry, info, entries, newinfo); } @@ -1882,7 +1882,7 @@ static int compat_mtw_from_user(struct compat_ebt_entry_mwt *mwt, struct xt_match *match; struct xt_target *wt; void *dst = NULL; - int off, pad = 0, ret = 0; + int off, pad = 0; unsigned int size_kern, entry_offset, match_size = mwt->match_size; strlcpy(name, mwt->u.name, sizeof(name)); @@ -1935,13 +1935,6 @@ static int compat_mtw_from_user(struct compat_ebt_entry_mwt *mwt, break; } - if (!dst) { - ret = xt_compat_add_offset(NFPROTO_BRIDGE, entry_offset, - off + ebt_compat_entry_padsize()); - if (ret < 0) - return ret; - } - state->buf_kern_offset += match_size + off; state->buf_user_offset += match_size; pad = XT_ALIGN(size_kern) - size_kern; @@ -2016,50 +2009,6 @@ static int ebt_size_mwt(struct compat_ebt_entry_mwt *match32, return growth; } -#define EBT_COMPAT_WATCHER_ITERATE(e, fn, args...) \ -({ \ - unsigned int __i; \ - int __ret = 0; \ - struct compat_ebt_entry_mwt *__watcher; \ - \ - for (__i = e->watchers_offset; \ - __i < (e)->target_offset; \ - __i += __watcher->watcher_size + \ - sizeof(struct compat_ebt_entry_mwt)) { \ - __watcher = (void *)(e) + __i; \ - __ret = fn(__watcher , ## args); \ - if (__ret != 0) \ - break; \ - } \ - if (__ret == 0) { \ - if (__i != (e)->target_offset) \ - __ret = -EINVAL; \ - } \ - __ret; \ -}) - -#define EBT_COMPAT_MATCH_ITERATE(e, fn, args...) \ -({ \ - unsigned int __i; \ - int __ret = 0; \ - struct compat_ebt_entry_mwt *__match; \ - \ - for (__i = sizeof(struct ebt_entry); \ - __i < (e)->watchers_offset; \ - __i += __match->match_size + \ - sizeof(struct compat_ebt_entry_mwt)) { \ - __match = (void *)(e) + __i; \ - __ret = fn(__match , ## args); \ - if (__ret != 0) \ - break; \ - } \ - if (__ret == 0) { \ - if (__i != (e)->watchers_offset) \ - __ret = -EINVAL; \ - } \ - __ret; \ -}) - /* called for all ebt_entry structures. */ static int size_entry_mwt(struct ebt_entry *entry, const unsigned char *base, unsigned int *total, @@ -2132,6 +2081,14 @@ static int size_entry_mwt(struct ebt_entry *entry, const unsigned char *base, } } + if (state->buf_kern_start == NULL) { + unsigned int offset = buf_start - (char *) base; + + ret = xt_compat_add_offset(NFPROTO_BRIDGE, offset, new_offset); + if (ret < 0) + return ret; + } + startoff = state->buf_user_offset - startoff; BUG_ON(*total < startoff); @@ -2240,6 +2197,7 @@ static int compat_do_replace(struct net *net, void __user *user, xt_compat_lock(NFPROTO_BRIDGE); + xt_compat_init_offsets(NFPROTO_BRIDGE, tmp.nentries); ret = compat_copy_entries(entries_tmp, tmp.entries_size, &state); if (ret < 0) goto out_unlock; diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c index 05f357828a2..e15a82ccc05 100644 --- a/net/ceph/messenger.c +++ b/net/ceph/messenger.c @@ -2267,6 +2267,19 @@ struct ceph_msg *ceph_msg_new(int type, int front_len, gfp_t flags) m->more_to_follow = false; m->pool = NULL; + /* middle */ + m->middle = NULL; + + /* data */ + m->nr_pages = 0; + m->page_alignment = 0; + m->pages = NULL; + m->pagelist = NULL; + m->bio = NULL; + m->bio_iter = NULL; + m->bio_seg = 0; + m->trail = NULL; + /* front */ if (front_len) { if (front_len > PAGE_CACHE_SIZE) { @@ -2286,19 +2299,6 @@ struct ceph_msg *ceph_msg_new(int type, int front_len, gfp_t flags) } m->front.iov_len = front_len; - /* middle */ - m->middle = NULL; - - /* data */ - m->nr_pages = 0; - m->page_alignment = 0; - m->pages = NULL; - m->pagelist = NULL; - m->bio = NULL; - m->bio_iter = NULL; - m->bio_seg = 0; - m->trail = NULL; - dout("ceph_msg_new %p front %d\n", m, front_len); return m; diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c index 5a80f41c0cb..6b5dda1cb5d 100644 --- a/net/ceph/osd_client.c +++ b/net/ceph/osd_client.c @@ -470,8 +470,8 @@ struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *osdc, snapc, ops, use_mempool, GFP_NOFS, NULL, NULL); - if (IS_ERR(req)) - return req; + if (!req) + return NULL; /* calculate max write size */ calc_layout(osdc, vino, layout, off, plen, req, ops); diff --git a/net/core/dev.c b/net/core/dev.c index 856b6ee9a1d..b624fe4d9bd 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -1284,11 +1284,13 @@ static int dev_close_many(struct list_head *head) */ int dev_close(struct net_device *dev) { - LIST_HEAD(single); + if (dev->flags & IFF_UP) { + LIST_HEAD(single); - list_add(&dev->unreg_list, &single); - dev_close_many(&single); - list_del(&single); + list_add(&dev->unreg_list, &single); + dev_close_many(&single); + list_del(&single); + } return 0; } EXPORT_SYMBOL(dev_close); @@ -5184,27 +5186,27 @@ u32 netdev_fix_features(struct net_device *dev, u32 features) /* Fix illegal checksum combinations */ if ((features & NETIF_F_HW_CSUM) && (features & (NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM))) { - netdev_info(dev, "mixed HW and IP checksum settings.\n"); + netdev_warn(dev, "mixed HW and IP checksum settings.\n"); features &= ~(NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM); } if ((features & NETIF_F_NO_CSUM) && (features & (NETIF_F_HW_CSUM|NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM))) { - netdev_info(dev, "mixed no checksumming and other settings.\n"); + netdev_warn(dev, "mixed no checksumming and other settings.\n"); features &= ~(NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM|NETIF_F_HW_CSUM); } /* Fix illegal SG+CSUM combinations. */ if ((features & NETIF_F_SG) && !(features & NETIF_F_ALL_CSUM)) { - netdev_info(dev, - "Dropping NETIF_F_SG since no checksum feature.\n"); + netdev_dbg(dev, + "Dropping NETIF_F_SG since no checksum feature.\n"); features &= ~NETIF_F_SG; } /* TSO requires that SG is present as well. */ if ((features & NETIF_F_ALL_TSO) && !(features & NETIF_F_SG)) { - netdev_info(dev, "Dropping TSO features since no SG feature.\n"); + netdev_dbg(dev, "Dropping TSO features since no SG feature.\n"); features &= ~NETIF_F_ALL_TSO; } @@ -5214,7 +5216,7 @@ u32 netdev_fix_features(struct net_device *dev, u32 features) /* Software GSO depends on SG. */ if ((features & NETIF_F_GSO) && !(features & NETIF_F_SG)) { - netdev_info(dev, "Dropping NETIF_F_GSO since no SG feature.\n"); + netdev_dbg(dev, "Dropping NETIF_F_GSO since no SG feature.\n"); features &= ~NETIF_F_GSO; } @@ -5224,13 +5226,13 @@ u32 netdev_fix_features(struct net_device *dev, u32 features) if (!((features & NETIF_F_GEN_CSUM) || (features & (NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM)) == (NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM))) { - netdev_info(dev, + netdev_dbg(dev, "Dropping NETIF_F_UFO since no checksum offload features.\n"); features &= ~NETIF_F_UFO; } if (!(features & NETIF_F_SG)) { - netdev_info(dev, + netdev_dbg(dev, "Dropping NETIF_F_UFO since no NETIF_F_SG feature.\n"); features &= ~NETIF_F_UFO; } @@ -5412,12 +5414,6 @@ int register_netdevice(struct net_device *dev) dev->features |= NETIF_F_SOFT_FEATURES; dev->wanted_features = dev->features & dev->hw_features; - /* Avoid warning from netdev_fix_features() for GSO without SG */ - if (!(dev->wanted_features & NETIF_F_SG)) { - dev->wanted_features &= ~NETIF_F_GSO; - dev->features &= ~NETIF_F_GSO; - } - /* Enable GRO and NETIF_F_HIGHDMA for vlans by default, * vlan_dev_init() will do the dev->features check, so these features * are enabled only if supported by underlying device. diff --git a/net/dccp/options.c b/net/dccp/options.c index f06ffcfc8d7..4b2ab657ac8 100644 --- a/net/dccp/options.c +++ b/net/dccp/options.c @@ -123,6 +123,8 @@ int dccp_parse_options(struct sock *sk, struct dccp_request_sock *dreq, case DCCPO_CHANGE_L ... DCCPO_CONFIRM_R: if (pkt_type == DCCP_PKT_DATA) /* RFC 4340, 6 */ break; + if (len == 0) + goto out_invalid_option; rc = dccp_feat_parse_options(sk, dreq, mandatory, opt, *value, value + 1, len - 1); if (rc) diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c index a1151b8adf3..b1d282f11be 100644 --- a/net/ipv4/ip_fragment.c +++ b/net/ipv4/ip_fragment.c @@ -223,31 +223,30 @@ static void ip_expire(unsigned long arg) if ((qp->q.last_in & INET_FRAG_FIRST_IN) && qp->q.fragments != NULL) { struct sk_buff *head = qp->q.fragments; + const struct iphdr *iph; + int err; rcu_read_lock(); head->dev = dev_get_by_index_rcu(net, qp->iif); if (!head->dev) goto out_rcu_unlock; + /* skb dst is stale, drop it, and perform route lookup again */ + skb_dst_drop(head); + iph = ip_hdr(head); + err = ip_route_input_noref(head, iph->daddr, iph->saddr, + iph->tos, head->dev); + if (err) + goto out_rcu_unlock; + /* - * Only search router table for the head fragment, - * when defraging timeout at PRE_ROUTING HOOK. + * Only an end host needs to send an ICMP + * "Fragment Reassembly Timeout" message, per RFC792. */ - if (qp->user == IP_DEFRAG_CONNTRACK_IN && !skb_dst(head)) { - const struct iphdr *iph = ip_hdr(head); - int err = ip_route_input(head, iph->daddr, iph->saddr, - iph->tos, head->dev); - if (unlikely(err)) - goto out_rcu_unlock; - - /* - * Only an end host needs to send an ICMP - * "Fragment Reassembly Timeout" message, per RFC792. - */ - if (skb_rtable(head)->rt_type != RTN_LOCAL) - goto out_rcu_unlock; + if (qp->user == IP_DEFRAG_CONNTRACK_IN && + skb_rtable(head)->rt_type != RTN_LOCAL) + goto out_rcu_unlock; - } /* Send an ICMP "Fragment Reassembly Timeout" message. */ icmp_send(head, ICMP_TIME_EXCEEDED, ICMP_EXC_FRAGTIME, 0); diff --git a/net/ipv4/tcp_cubic.c b/net/ipv4/tcp_cubic.c index 34340c9c95f..f376b05cca8 100644 --- a/net/ipv4/tcp_cubic.c +++ b/net/ipv4/tcp_cubic.c @@ -93,6 +93,7 @@ struct bictcp { u32 ack_cnt; /* number of acks */ u32 tcp_cwnd; /* estimated tcp cwnd */ #define ACK_RATIO_SHIFT 4 +#define ACK_RATIO_LIMIT (32u << ACK_RATIO_SHIFT) u16 delayed_ack; /* estimate the ratio of Packets/ACKs << 4 */ u8 sample_cnt; /* number of samples to decide curr_rtt */ u8 found; /* the exit point is found? */ @@ -398,8 +399,12 @@ static void bictcp_acked(struct sock *sk, u32 cnt, s32 rtt_us) u32 delay; if (icsk->icsk_ca_state == TCP_CA_Open) { - cnt -= ca->delayed_ack >> ACK_RATIO_SHIFT; - ca->delayed_ack += cnt; + u32 ratio = ca->delayed_ack; + + ratio -= ca->delayed_ack >> ACK_RATIO_SHIFT; + ratio += cnt; + + ca->delayed_ack = min(ratio, ACK_RATIO_LIMIT); } /* Some calls are for duplicates without timetamps */ diff --git a/net/ipv4/xfrm4_output.c b/net/ipv4/xfrm4_output.c index 571aa96a175..2d51840e53a 100644 --- a/net/ipv4/xfrm4_output.c +++ b/net/ipv4/xfrm4_output.c @@ -69,7 +69,7 @@ int xfrm4_prepare_output(struct xfrm_state *x, struct sk_buff *skb) } EXPORT_SYMBOL(xfrm4_prepare_output); -static int xfrm4_output_finish(struct sk_buff *skb) +int xfrm4_output_finish(struct sk_buff *skb) { #ifdef CONFIG_NETFILTER if (!skb_dst(skb)->xfrm) { @@ -86,7 +86,11 @@ static int xfrm4_output_finish(struct sk_buff *skb) int xfrm4_output(struct sk_buff *skb) { + struct dst_entry *dst = skb_dst(skb); + struct xfrm_state *x = dst->xfrm; + return NF_HOOK_COND(NFPROTO_IPV4, NF_INET_POST_ROUTING, skb, - NULL, skb_dst(skb)->dev, xfrm4_output_finish, + NULL, dst->dev, + x->outer_mode->afinfo->output_finish, !(IPCB(skb)->flags & IPSKB_REROUTED)); } diff --git a/net/ipv4/xfrm4_state.c b/net/ipv4/xfrm4_state.c index 1717c64628d..805d63ef434 100644 --- a/net/ipv4/xfrm4_state.c +++ b/net/ipv4/xfrm4_state.c @@ -78,6 +78,7 @@ static struct xfrm_state_afinfo xfrm4_state_afinfo = { .init_tempsel = __xfrm4_init_tempsel, .init_temprop = xfrm4_init_temprop, .output = xfrm4_output, + .output_finish = xfrm4_output_finish, .extract_input = xfrm4_extract_input, .extract_output = xfrm4_extract_output, .transport_finish = xfrm4_transport_finish, diff --git a/net/ipv6/netfilter/ip6t_REJECT.c b/net/ipv6/netfilter/ip6t_REJECT.c index 28e74488a32..a5a4c5dd539 100644 --- a/net/ipv6/netfilter/ip6t_REJECT.c +++ b/net/ipv6/netfilter/ip6t_REJECT.c @@ -45,6 +45,8 @@ static void send_reset(struct net *net, struct sk_buff *oldskb) int tcphoff, needs_ack; const struct ipv6hdr *oip6h = ipv6_hdr(oldskb); struct ipv6hdr *ip6h; +#define DEFAULT_TOS_VALUE 0x0U + const __u8 tclass = DEFAULT_TOS_VALUE; struct dst_entry *dst = NULL; u8 proto; struct flowi6 fl6; @@ -124,7 +126,7 @@ static void send_reset(struct net *net, struct sk_buff *oldskb) skb_put(nskb, sizeof(struct ipv6hdr)); skb_reset_network_header(nskb); ip6h = ipv6_hdr(nskb); - ip6h->version = 6; + *(__be32 *)ip6h = htonl(0x60000000 | (tclass << 20)); ip6h->hop_limit = ip6_dst_hoplimit(dst); ip6h->nexthdr = IPPROTO_TCP; ipv6_addr_copy(&ip6h->saddr, &oip6h->daddr); diff --git a/net/ipv6/xfrm6_output.c b/net/ipv6/xfrm6_output.c index 8e688b3de9a..49a91c5f562 100644 --- a/net/ipv6/xfrm6_output.c +++ b/net/ipv6/xfrm6_output.c @@ -79,7 +79,7 @@ int xfrm6_prepare_output(struct xfrm_state *x, struct sk_buff *skb) } EXPORT_SYMBOL(xfrm6_prepare_output); -static int xfrm6_output_finish(struct sk_buff *skb) +int xfrm6_output_finish(struct sk_buff *skb) { #ifdef CONFIG_NETFILTER IP6CB(skb)->flags |= IP6SKB_XFRM_TRANSFORMED; @@ -97,9 +97,9 @@ static int __xfrm6_output(struct sk_buff *skb) if ((x && x->props.mode == XFRM_MODE_TUNNEL) && ((skb->len > ip6_skb_dst_mtu(skb) && !skb_is_gso(skb)) || dst_allfrag(skb_dst(skb)))) { - return ip6_fragment(skb, xfrm6_output_finish); + return ip6_fragment(skb, x->outer_mode->afinfo->output_finish); } - return xfrm6_output_finish(skb); + return x->outer_mode->afinfo->output_finish(skb); } int xfrm6_output(struct sk_buff *skb) diff --git a/net/ipv6/xfrm6_state.c b/net/ipv6/xfrm6_state.c index afe941e9415..248f0b2a7ee 100644 --- a/net/ipv6/xfrm6_state.c +++ b/net/ipv6/xfrm6_state.c @@ -178,6 +178,7 @@ static struct xfrm_state_afinfo xfrm6_state_afinfo = { .tmpl_sort = __xfrm6_tmpl_sort, .state_sort = __xfrm6_state_sort, .output = xfrm6_output, + .output_finish = xfrm6_output_finish, .extract_input = xfrm6_extract_input, .extract_output = xfrm6_extract_output, .transport_finish = xfrm6_transport_finish, diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index ce4596ed126..bd1224fd216 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -237,6 +237,10 @@ ieee80211_tx_h_dynamic_ps(struct ieee80211_tx_data *tx) &local->dynamic_ps_disable_work); } + /* Don't restart the timer if we're not disassociated */ + if (!ifmgd->associated) + return TX_CONTINUE; + mod_timer(&local->dynamic_ps_timer, jiffies + msecs_to_jiffies(local->hw.conf.dynamic_ps_timeout)); diff --git a/net/netfilter/ipvs/ip_vs_app.c b/net/netfilter/ipvs/ip_vs_app.c index 2dc6de13ac1..059af3120be 100644 --- a/net/netfilter/ipvs/ip_vs_app.c +++ b/net/netfilter/ipvs/ip_vs_app.c @@ -572,11 +572,11 @@ static const struct file_operations ip_vs_app_fops = { .open = ip_vs_app_open, .read = seq_read, .llseek = seq_lseek, - .release = seq_release, + .release = seq_release_net, }; #endif -static int __net_init __ip_vs_app_init(struct net *net) +int __net_init __ip_vs_app_init(struct net *net) { struct netns_ipvs *ipvs = net_ipvs(net); @@ -585,26 +585,17 @@ static int __net_init __ip_vs_app_init(struct net *net) return 0; } -static void __net_exit __ip_vs_app_cleanup(struct net *net) +void __net_exit __ip_vs_app_cleanup(struct net *net) { proc_net_remove(net, "ip_vs_app"); } -static struct pernet_operations ip_vs_app_ops = { - .init = __ip_vs_app_init, - .exit = __ip_vs_app_cleanup, -}; - int __init ip_vs_app_init(void) { - int rv; - - rv = register_pernet_subsys(&ip_vs_app_ops); - return rv; + return 0; } void ip_vs_app_cleanup(void) { - unregister_pernet_subsys(&ip_vs_app_ops); } diff --git a/net/netfilter/ipvs/ip_vs_conn.c b/net/netfilter/ipvs/ip_vs_conn.c index c97bd45975b..bf28ac2fc99 100644 --- a/net/netfilter/ipvs/ip_vs_conn.c +++ b/net/netfilter/ipvs/ip_vs_conn.c @@ -1046,7 +1046,7 @@ static const struct file_operations ip_vs_conn_fops = { .open = ip_vs_conn_open, .read = seq_read, .llseek = seq_lseek, - .release = seq_release, + .release = seq_release_net, }; static const char *ip_vs_origin_name(unsigned flags) @@ -1114,7 +1114,7 @@ static const struct file_operations ip_vs_conn_sync_fops = { .open = ip_vs_conn_sync_open, .read = seq_read, .llseek = seq_lseek, - .release = seq_release, + .release = seq_release_net, }; #endif @@ -1258,22 +1258,17 @@ int __net_init __ip_vs_conn_init(struct net *net) return 0; } -static void __net_exit __ip_vs_conn_cleanup(struct net *net) +void __net_exit __ip_vs_conn_cleanup(struct net *net) { /* flush all the connection entries first */ ip_vs_conn_flush(net); proc_net_remove(net, "ip_vs_conn"); proc_net_remove(net, "ip_vs_conn_sync"); } -static struct pernet_operations ipvs_conn_ops = { - .init = __ip_vs_conn_init, - .exit = __ip_vs_conn_cleanup, -}; int __init ip_vs_conn_init(void) { int idx; - int retc; /* Compute size and mask */ ip_vs_conn_tab_size = 1 << ip_vs_conn_tab_bits; @@ -1309,17 +1304,14 @@ int __init ip_vs_conn_init(void) rwlock_init(&__ip_vs_conntbl_lock_array[idx].l); } - retc = register_pernet_subsys(&ipvs_conn_ops); - /* calculate the random value for connection hash */ get_random_bytes(&ip_vs_conn_rnd, sizeof(ip_vs_conn_rnd)); - return retc; + return 0; } void ip_vs_conn_cleanup(void) { - unregister_pernet_subsys(&ipvs_conn_ops); /* Release the empty cache */ kmem_cache_destroy(ip_vs_conn_cachep); vfree(ip_vs_conn_tab); diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c index 07accf6b240..a74dae6c5db 100644 --- a/net/netfilter/ipvs/ip_vs_core.c +++ b/net/netfilter/ipvs/ip_vs_core.c @@ -1113,6 +1113,9 @@ ip_vs_out(unsigned int hooknum, struct sk_buff *skb, int af) return NF_ACCEPT; net = skb_net(skb); + if (!net_ipvs(net)->enable) + return NF_ACCEPT; + ip_vs_fill_iphdr(af, skb_network_header(skb), &iph); #ifdef CONFIG_IP_VS_IPV6 if (af == AF_INET6) { @@ -1343,6 +1346,7 @@ ip_vs_in_icmp(struct sk_buff *skb, int *related, unsigned int hooknum) return NF_ACCEPT; /* The packet looks wrong, ignore */ net = skb_net(skb); + pd = ip_vs_proto_data_get(net, cih->protocol); if (!pd) return NF_ACCEPT; @@ -1529,6 +1533,11 @@ ip_vs_in(unsigned int hooknum, struct sk_buff *skb, int af) IP_VS_DBG_ADDR(af, &iph.daddr), hooknum); return NF_ACCEPT; } + /* ipvs enabled in this netns ? */ + net = skb_net(skb); + if (!net_ipvs(net)->enable) + return NF_ACCEPT; + ip_vs_fill_iphdr(af, skb_network_header(skb), &iph); /* Bad... Do not break raw sockets */ @@ -1562,7 +1571,6 @@ ip_vs_in(unsigned int hooknum, struct sk_buff *skb, int af) ip_vs_fill_iphdr(af, skb_network_header(skb), &iph); } - net = skb_net(skb); /* Protocol supported? */ pd = ip_vs_proto_data_get(net, iph.protocol); if (unlikely(!pd)) @@ -1588,7 +1596,6 @@ ip_vs_in(unsigned int hooknum, struct sk_buff *skb, int af) } IP_VS_DBG_PKT(11, af, pp, skb, 0, "Incoming packet"); - net = skb_net(skb); ipvs = net_ipvs(net); /* Check the server status */ if (cp->dest && !(cp->dest->flags & IP_VS_DEST_F_AVAILABLE)) { @@ -1743,10 +1750,16 @@ ip_vs_forward_icmp(unsigned int hooknum, struct sk_buff *skb, int (*okfn)(struct sk_buff *)) { int r; + struct net *net; if (ip_hdr(skb)->protocol != IPPROTO_ICMP) return NF_ACCEPT; + /* ipvs enabled in this netns ? */ + net = skb_net(skb); + if (!net_ipvs(net)->enable) + return NF_ACCEPT; + return ip_vs_in_icmp(skb, &r, hooknum); } @@ -1757,10 +1770,16 @@ ip_vs_forward_icmp_v6(unsigned int hooknum, struct sk_buff *skb, int (*okfn)(struct sk_buff *)) { int r; + struct net *net; if (ipv6_hdr(skb)->nexthdr != IPPROTO_ICMPV6) return NF_ACCEPT; + /* ipvs enabled in this netns ? */ + net = skb_net(skb); + if (!net_ipvs(net)->enable) + return NF_ACCEPT; + return ip_vs_in_icmp_v6(skb, &r, hooknum); } #endif @@ -1884,19 +1903,70 @@ static int __net_init __ip_vs_init(struct net *net) pr_err("%s(): no memory.\n", __func__); return -ENOMEM; } + /* Hold the beast until a service is registerd */ + ipvs->enable = 0; ipvs->net = net; /* Counters used for creating unique names */ ipvs->gen = atomic_read(&ipvs_netns_cnt); atomic_inc(&ipvs_netns_cnt); net->ipvs = ipvs; + + if (__ip_vs_estimator_init(net) < 0) + goto estimator_fail; + + if (__ip_vs_control_init(net) < 0) + goto control_fail; + + if (__ip_vs_protocol_init(net) < 0) + goto protocol_fail; + + if (__ip_vs_app_init(net) < 0) + goto app_fail; + + if (__ip_vs_conn_init(net) < 0) + goto conn_fail; + + if (__ip_vs_sync_init(net) < 0) + goto sync_fail; + printk(KERN_INFO "IPVS: Creating netns size=%zu id=%d\n", sizeof(struct netns_ipvs), ipvs->gen); return 0; +/* + * Error handling + */ + +sync_fail: + __ip_vs_conn_cleanup(net); +conn_fail: + __ip_vs_app_cleanup(net); +app_fail: + __ip_vs_protocol_cleanup(net); +protocol_fail: + __ip_vs_control_cleanup(net); +control_fail: + __ip_vs_estimator_cleanup(net); +estimator_fail: + return -ENOMEM; } static void __net_exit __ip_vs_cleanup(struct net *net) { - IP_VS_DBG(10, "ipvs netns %d released\n", net_ipvs(net)->gen); + __ip_vs_service_cleanup(net); /* ip_vs_flush() with locks */ + __ip_vs_conn_cleanup(net); + __ip_vs_app_cleanup(net); + __ip_vs_protocol_cleanup(net); + __ip_vs_control_cleanup(net); + __ip_vs_estimator_cleanup(net); + IP_VS_DBG(2, "ipvs netns %d released\n", net_ipvs(net)->gen); +} + +static void __net_exit __ip_vs_dev_cleanup(struct net *net) +{ + EnterFunction(2); + net_ipvs(net)->enable = 0; /* Disable packet reception */ + __ip_vs_sync_cleanup(net); + LeaveFunction(2); } static struct pernet_operations ipvs_core_ops = { @@ -1906,6 +1976,10 @@ static struct pernet_operations ipvs_core_ops = { .size = sizeof(struct netns_ipvs), }; +static struct pernet_operations ipvs_core_dev_ops = { + .exit = __ip_vs_dev_cleanup, +}; + /* * Initialize IP Virtual Server */ @@ -1913,10 +1987,6 @@ static int __init ip_vs_init(void) { int ret; - ret = register_pernet_subsys(&ipvs_core_ops); /* Alloc ip_vs struct */ - if (ret < 0) - return ret; - ip_vs_estimator_init(); ret = ip_vs_control_init(); if (ret < 0) { @@ -1944,15 +2014,28 @@ static int __init ip_vs_init(void) goto cleanup_conn; } + ret = register_pernet_subsys(&ipvs_core_ops); /* Alloc ip_vs struct */ + if (ret < 0) + goto cleanup_sync; + + ret = register_pernet_device(&ipvs_core_dev_ops); + if (ret < 0) + goto cleanup_sub; + ret = nf_register_hooks(ip_vs_ops, ARRAY_SIZE(ip_vs_ops)); if (ret < 0) { pr_err("can't register hooks.\n"); - goto cleanup_sync; + goto cleanup_dev; } pr_info("ipvs loaded.\n"); + return ret; +cleanup_dev: + unregister_pernet_device(&ipvs_core_dev_ops); +cleanup_sub: + unregister_pernet_subsys(&ipvs_core_ops); cleanup_sync: ip_vs_sync_cleanup(); cleanup_conn: @@ -1964,20 +2047,20 @@ cleanup_sync: ip_vs_control_cleanup(); cleanup_estimator: ip_vs_estimator_cleanup(); - unregister_pernet_subsys(&ipvs_core_ops); /* free ip_vs struct */ return ret; } static void __exit ip_vs_cleanup(void) { nf_unregister_hooks(ip_vs_ops, ARRAY_SIZE(ip_vs_ops)); + unregister_pernet_device(&ipvs_core_dev_ops); + unregister_pernet_subsys(&ipvs_core_ops); /* free ip_vs struct */ ip_vs_sync_cleanup(); ip_vs_conn_cleanup(); ip_vs_app_cleanup(); ip_vs_protocol_cleanup(); ip_vs_control_cleanup(); ip_vs_estimator_cleanup(); - unregister_pernet_subsys(&ipvs_core_ops); /* free ip_vs struct */ pr_info("ipvs unloaded.\n"); } diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c index ae47090bf45..37890f228b1 100644 --- a/net/netfilter/ipvs/ip_vs_ctl.c +++ b/net/netfilter/ipvs/ip_vs_ctl.c @@ -69,6 +69,11 @@ int ip_vs_get_debug_level(void) } #endif + +/* Protos */ +static void __ip_vs_del_service(struct ip_vs_service *svc); + + #ifdef CONFIG_IP_VS_IPV6 /* Taken from rt6_fill_node() in net/ipv6/route.c, is there a better way? */ static int __ip_vs_addr_is_local_v6(struct net *net, @@ -1214,6 +1219,8 @@ ip_vs_add_service(struct net *net, struct ip_vs_service_user_kern *u, write_unlock_bh(&__ip_vs_svc_lock); *svc_p = svc; + /* Now there is a service - full throttle */ + ipvs->enable = 1; return 0; @@ -1472,6 +1479,84 @@ static int ip_vs_flush(struct net *net) return 0; } +/* + * Delete service by {netns} in the service table. + * Called by __ip_vs_cleanup() + */ +void __ip_vs_service_cleanup(struct net *net) +{ + EnterFunction(2); + /* Check for "full" addressed entries */ + mutex_lock(&__ip_vs_mutex); + ip_vs_flush(net); + mutex_unlock(&__ip_vs_mutex); + LeaveFunction(2); +} +/* + * Release dst hold by dst_cache + */ +static inline void +__ip_vs_dev_reset(struct ip_vs_dest *dest, struct net_device *dev) +{ + spin_lock_bh(&dest->dst_lock); + if (dest->dst_cache && dest->dst_cache->dev == dev) { + IP_VS_DBG_BUF(3, "Reset dev:%s dest %s:%u ,dest->refcnt=%d\n", + dev->name, + IP_VS_DBG_ADDR(dest->af, &dest->addr), + ntohs(dest->port), + atomic_read(&dest->refcnt)); + ip_vs_dst_reset(dest); + } + spin_unlock_bh(&dest->dst_lock); + +} +/* + * Netdev event receiver + * Currently only NETDEV_UNREGISTER is handled, i.e. if we hold a reference to + * a device that is "unregister" it must be released. + */ +static int ip_vs_dst_event(struct notifier_block *this, unsigned long event, + void *ptr) +{ + struct net_device *dev = ptr; + struct net *net = dev_net(dev); + struct ip_vs_service *svc; + struct ip_vs_dest *dest; + unsigned int idx; + + if (event != NETDEV_UNREGISTER) + return NOTIFY_DONE; + IP_VS_DBG(3, "%s() dev=%s\n", __func__, dev->name); + EnterFunction(2); + mutex_lock(&__ip_vs_mutex); + for (idx = 0; idx < IP_VS_SVC_TAB_SIZE; idx++) { + list_for_each_entry(svc, &ip_vs_svc_table[idx], s_list) { + if (net_eq(svc->net, net)) { + list_for_each_entry(dest, &svc->destinations, + n_list) { + __ip_vs_dev_reset(dest, dev); + } + } + } + + list_for_each_entry(svc, &ip_vs_svc_fwm_table[idx], f_list) { + if (net_eq(svc->net, net)) { + list_for_each_entry(dest, &svc->destinations, + n_list) { + __ip_vs_dev_reset(dest, dev); + } + } + + } + } + + list_for_each_entry(dest, &net_ipvs(net)->dest_trash, n_list) { + __ip_vs_dev_reset(dest, dev); + } + mutex_unlock(&__ip_vs_mutex); + LeaveFunction(2); + return NOTIFY_DONE; +} /* * Zero counters in a service or all services @@ -1981,7 +2066,7 @@ static const struct file_operations ip_vs_info_fops = { .open = ip_vs_info_open, .read = seq_read, .llseek = seq_lseek, - .release = seq_release_private, + .release = seq_release_net, }; #endif @@ -2024,7 +2109,7 @@ static const struct file_operations ip_vs_stats_fops = { .open = ip_vs_stats_seq_open, .read = seq_read, .llseek = seq_lseek, - .release = single_release, + .release = single_release_net, }; static int ip_vs_stats_percpu_show(struct seq_file *seq, void *v) @@ -2093,7 +2178,7 @@ static const struct file_operations ip_vs_stats_percpu_fops = { .open = ip_vs_stats_percpu_seq_open, .read = seq_read, .llseek = seq_lseek, - .release = single_release, + .release = single_release_net, }; #endif @@ -3588,6 +3673,10 @@ void __net_init __ip_vs_control_cleanup_sysctl(struct net *net) { } #endif +static struct notifier_block ip_vs_dst_notifier = { + .notifier_call = ip_vs_dst_event, +}; + int __net_init __ip_vs_control_init(struct net *net) { int idx; @@ -3626,7 +3715,7 @@ err: return -ENOMEM; } -static void __net_exit __ip_vs_control_cleanup(struct net *net) +void __net_exit __ip_vs_control_cleanup(struct net *net) { struct netns_ipvs *ipvs = net_ipvs(net); @@ -3639,11 +3728,6 @@ static void __net_exit __ip_vs_control_cleanup(struct net *net) free_percpu(ipvs->tot_stats.cpustats); } -static struct pernet_operations ipvs_control_ops = { - .init = __ip_vs_control_init, - .exit = __ip_vs_control_cleanup, -}; - int __init ip_vs_control_init(void) { int idx; @@ -3657,33 +3741,32 @@ int __init ip_vs_control_init(void) INIT_LIST_HEAD(&ip_vs_svc_fwm_table[idx]); } - ret = register_pernet_subsys(&ipvs_control_ops); - if (ret) { - pr_err("cannot register namespace.\n"); - goto err; - } - smp_wmb(); /* Do we really need it now ? */ ret = nf_register_sockopt(&ip_vs_sockopts); if (ret) { pr_err("cannot register sockopt.\n"); - goto err_net; + goto err_sock; } ret = ip_vs_genl_register(); if (ret) { pr_err("cannot register Generic Netlink interface.\n"); - nf_unregister_sockopt(&ip_vs_sockopts); - goto err_net; + goto err_genl; } + ret = register_netdevice_notifier(&ip_vs_dst_notifier); + if (ret < 0) + goto err_notf; + LeaveFunction(2); return 0; -err_net: - unregister_pernet_subsys(&ipvs_control_ops); -err: +err_notf: + ip_vs_genl_unregister(); +err_genl: + nf_unregister_sockopt(&ip_vs_sockopts); +err_sock: return ret; } @@ -3691,7 +3774,6 @@ err: void ip_vs_control_cleanup(void) { EnterFunction(2); - unregister_pernet_subsys(&ipvs_control_ops); ip_vs_genl_unregister(); nf_unregister_sockopt(&ip_vs_sockopts); LeaveFunction(2); diff --git a/net/netfilter/ipvs/ip_vs_est.c b/net/netfilter/ipvs/ip_vs_est.c index 8c8766ca56a..508cce98777 100644 --- a/net/netfilter/ipvs/ip_vs_est.c +++ b/net/netfilter/ipvs/ip_vs_est.c @@ -192,7 +192,7 @@ void ip_vs_read_estimator(struct ip_vs_stats_user *dst, dst->outbps = (e->outbps + 0xF) >> 5; } -static int __net_init __ip_vs_estimator_init(struct net *net) +int __net_init __ip_vs_estimator_init(struct net *net) { struct netns_ipvs *ipvs = net_ipvs(net); @@ -203,24 +203,16 @@ static int __net_init __ip_vs_estimator_init(struct net *net) return 0; } -static void __net_exit __ip_vs_estimator_exit(struct net *net) +void __net_exit __ip_vs_estimator_cleanup(struct net *net) { del_timer_sync(&net_ipvs(net)->est_timer); } -static struct pernet_operations ip_vs_app_ops = { - .init = __ip_vs_estimator_init, - .exit = __ip_vs_estimator_exit, -}; int __init ip_vs_estimator_init(void) { - int rv; - - rv = register_pernet_subsys(&ip_vs_app_ops); - return rv; + return 0; } void ip_vs_estimator_cleanup(void) { - unregister_pernet_subsys(&ip_vs_app_ops); } diff --git a/net/netfilter/ipvs/ip_vs_proto.c b/net/netfilter/ipvs/ip_vs_proto.c index 17484a4416e..eb86028536f 100644 --- a/net/netfilter/ipvs/ip_vs_proto.c +++ b/net/netfilter/ipvs/ip_vs_proto.c @@ -316,7 +316,7 @@ ip_vs_tcpudp_debug_packet(int af, struct ip_vs_protocol *pp, /* * per network name-space init */ -static int __net_init __ip_vs_protocol_init(struct net *net) +int __net_init __ip_vs_protocol_init(struct net *net) { #ifdef CONFIG_IP_VS_PROTO_TCP register_ip_vs_proto_netns(net, &ip_vs_protocol_tcp); @@ -336,7 +336,7 @@ static int __net_init __ip_vs_protocol_init(struct net *net) return 0; } -static void __net_exit __ip_vs_protocol_cleanup(struct net *net) +void __net_exit __ip_vs_protocol_cleanup(struct net *net) { struct netns_ipvs *ipvs = net_ipvs(net); struct ip_vs_proto_data *pd; @@ -349,11 +349,6 @@ static void __net_exit __ip_vs_protocol_cleanup(struct net *net) } } -static struct pernet_operations ipvs_proto_ops = { - .init = __ip_vs_protocol_init, - .exit = __ip_vs_protocol_cleanup, -}; - int __init ip_vs_protocol_init(void) { char protocols[64]; @@ -382,7 +377,6 @@ int __init ip_vs_protocol_init(void) REGISTER_PROTOCOL(&ip_vs_protocol_esp); #endif pr_info("Registered protocols (%s)\n", &protocols[2]); - return register_pernet_subsys(&ipvs_proto_ops); return 0; } @@ -393,7 +387,6 @@ void ip_vs_protocol_cleanup(void) struct ip_vs_protocol *pp; int i; - unregister_pernet_subsys(&ipvs_proto_ops); /* unregister all the ipvs protocols */ for (i = 0; i < IP_VS_PROTO_TAB_SIZE; i++) { while ((pp = ip_vs_proto_table[i]) != NULL) diff --git a/net/netfilter/ipvs/ip_vs_sync.c b/net/netfilter/ipvs/ip_vs_sync.c index 3e7961e85e9..e292e5bddc7 100644 --- a/net/netfilter/ipvs/ip_vs_sync.c +++ b/net/netfilter/ipvs/ip_vs_sync.c @@ -1303,13 +1303,18 @@ static struct socket *make_send_sock(struct net *net) struct socket *sock; int result; - /* First create a socket */ - result = __sock_create(net, PF_INET, SOCK_DGRAM, IPPROTO_UDP, &sock, 1); + /* First create a socket move it to right name space later */ + result = sock_create_kern(PF_INET, SOCK_DGRAM, IPPROTO_UDP, &sock); if (result < 0) { pr_err("Error during creation of socket; terminating\n"); return ERR_PTR(result); } - + /* + * Kernel sockets that are a part of a namespace, should not + * hold a reference to a namespace in order to allow to stop it. + * After sk_change_net should be released using sk_release_kernel. + */ + sk_change_net(sock->sk, net); result = set_mcast_if(sock->sk, ipvs->master_mcast_ifn); if (result < 0) { pr_err("Error setting outbound mcast interface\n"); @@ -1334,8 +1339,8 @@ static struct socket *make_send_sock(struct net *net) return sock; - error: - sock_release(sock); +error: + sk_release_kernel(sock->sk); return ERR_PTR(result); } @@ -1350,12 +1355,17 @@ static struct socket *make_receive_sock(struct net *net) int result; /* First create a socket */ - result = __sock_create(net, PF_INET, SOCK_DGRAM, IPPROTO_UDP, &sock, 1); + result = sock_create_kern(PF_INET, SOCK_DGRAM, IPPROTO_UDP, &sock); if (result < 0) { pr_err("Error during creation of socket; terminating\n"); return ERR_PTR(result); } - + /* + * Kernel sockets that are a part of a namespace, should not + * hold a reference to a namespace in order to allow to stop it. + * After sk_change_net should be released using sk_release_kernel. + */ + sk_change_net(sock->sk, net); /* it is equivalent to the REUSEADDR option in user-space */ sock->sk->sk_reuse = 1; @@ -1377,8 +1387,8 @@ static struct socket *make_receive_sock(struct net *net) return sock; - error: - sock_release(sock); +error: + sk_release_kernel(sock->sk); return ERR_PTR(result); } @@ -1473,7 +1483,7 @@ static int sync_thread_master(void *data) ip_vs_sync_buff_release(sb); /* release the sending multicast socket */ - sock_release(tinfo->sock); + sk_release_kernel(tinfo->sock->sk); kfree(tinfo); return 0; @@ -1513,7 +1523,7 @@ static int sync_thread_backup(void *data) } /* release the sending multicast socket */ - sock_release(tinfo->sock); + sk_release_kernel(tinfo->sock->sk); kfree(tinfo->buf); kfree(tinfo); @@ -1601,7 +1611,7 @@ outtinfo: outbuf: kfree(buf); outsocket: - sock_release(sock); + sk_release_kernel(sock->sk); out: return result; } @@ -1610,6 +1620,7 @@ out: int stop_sync_thread(struct net *net, int state) { struct netns_ipvs *ipvs = net_ipvs(net); + int retc = -EINVAL; IP_VS_DBG(7, "%s(): pid %d\n", __func__, task_pid_nr(current)); @@ -1629,7 +1640,7 @@ int stop_sync_thread(struct net *net, int state) spin_lock_bh(&ipvs->sync_lock); ipvs->sync_state &= ~IP_VS_STATE_MASTER; spin_unlock_bh(&ipvs->sync_lock); - kthread_stop(ipvs->master_thread); + retc = kthread_stop(ipvs->master_thread); ipvs->master_thread = NULL; } else if (state == IP_VS_STATE_BACKUP) { if (!ipvs->backup_thread) @@ -1639,22 +1650,20 @@ int stop_sync_thread(struct net *net, int state) task_pid_nr(ipvs->backup_thread)); ipvs->sync_state &= ~IP_VS_STATE_BACKUP; - kthread_stop(ipvs->backup_thread); + retc = kthread_stop(ipvs->backup_thread); ipvs->backup_thread = NULL; - } else { - return -EINVAL; } /* decrease the module use count */ ip_vs_use_count_dec(); - return 0; + return retc; } /* * Initialize data struct for each netns */ -static int __net_init __ip_vs_sync_init(struct net *net) +int __net_init __ip_vs_sync_init(struct net *net) { struct netns_ipvs *ipvs = net_ipvs(net); @@ -1668,24 +1677,24 @@ static int __net_init __ip_vs_sync_init(struct net *net) return 0; } -static void __ip_vs_sync_cleanup(struct net *net) +void __ip_vs_sync_cleanup(struct net *net) { - stop_sync_thread(net, IP_VS_STATE_MASTER); - stop_sync_thread(net, IP_VS_STATE_BACKUP); -} + int retc; -static struct pernet_operations ipvs_sync_ops = { - .init = __ip_vs_sync_init, - .exit = __ip_vs_sync_cleanup, -}; + retc = stop_sync_thread(net, IP_VS_STATE_MASTER); + if (retc && retc != -ESRCH) + pr_err("Failed to stop Master Daemon\n"); + retc = stop_sync_thread(net, IP_VS_STATE_BACKUP); + if (retc && retc != -ESRCH) + pr_err("Failed to stop Backup Daemon\n"); +} int __init ip_vs_sync_init(void) { - return register_pernet_subsys(&ipvs_sync_ops); + return 0; } void ip_vs_sync_cleanup(void) { - unregister_pernet_subsys(&ipvs_sync_ops); } diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c index 30bf8a167fc..482e90c6185 100644 --- a/net/netfilter/nf_conntrack_netlink.c +++ b/net/netfilter/nf_conntrack_netlink.c @@ -1334,6 +1334,7 @@ ctnetlink_create_conntrack(struct net *net, u16 zone, struct nf_conn *ct; int err = -EINVAL; struct nf_conntrack_helper *helper; + struct nf_conn_tstamp *tstamp; ct = nf_conntrack_alloc(net, zone, otuple, rtuple, GFP_ATOMIC); if (IS_ERR(ct)) @@ -1451,6 +1452,9 @@ ctnetlink_create_conntrack(struct net *net, u16 zone, __set_bit(IPS_EXPECTED_BIT, &ct->status); ct->master = master_ct; } + tstamp = nf_conn_tstamp_find(ct); + if (tstamp) + tstamp->start = ktime_to_ns(ktime_get_real()); add_timer(&ct->timeout); nf_conntrack_hash_insert(ct); diff --git a/net/netfilter/x_tables.c b/net/netfilter/x_tables.c index a9adf4c6b29..8a025a585d2 100644 --- a/net/netfilter/x_tables.c +++ b/net/netfilter/x_tables.c @@ -455,6 +455,7 @@ void xt_compat_flush_offsets(u_int8_t af) vfree(xt[af].compat_tab); xt[af].compat_tab = NULL; xt[af].number = 0; + xt[af].cur = 0; } } EXPORT_SYMBOL_GPL(xt_compat_flush_offsets); @@ -473,8 +474,7 @@ int xt_compat_calc_jump(u_int8_t af, unsigned int offset) else return mid ? tmp[mid - 1].delta : 0; } - WARN_ON_ONCE(1); - return 0; + return left ? tmp[left - 1].delta : 0; } EXPORT_SYMBOL_GPL(xt_compat_calc_jump); diff --git a/net/netfilter/xt_DSCP.c b/net/netfilter/xt_DSCP.c index 0a229191e55..ae8271652ef 100644 --- a/net/netfilter/xt_DSCP.c +++ b/net/netfilter/xt_DSCP.c @@ -99,7 +99,7 @@ tos_tg6(struct sk_buff *skb, const struct xt_action_param *par) u_int8_t orig, nv; orig = ipv6_get_dsfield(iph); - nv = (orig & info->tos_mask) ^ info->tos_value; + nv = (orig & ~info->tos_mask) ^ info->tos_value; if (orig != nv) { if (!skb_make_writable(skb, sizeof(struct iphdr))) diff --git a/net/netfilter/xt_conntrack.c b/net/netfilter/xt_conntrack.c index 481a86fdc40..61805d7b38a 100644 --- a/net/netfilter/xt_conntrack.c +++ b/net/netfilter/xt_conntrack.c @@ -272,11 +272,6 @@ static int conntrack_mt_check(const struct xt_mtchk_param *par) { int ret; - if (strcmp(par->table, "raw") == 0) { - pr_info("state is undetermined at the time of raw table\n"); - return -EINVAL; - } - ret = nf_ct_l3proto_try_module_get(par->family); if (ret < 0) pr_info("cannot load conntrack support for proto=%u\n", diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c index 15792d8b627..b4d745ea8ee 100644 --- a/net/xfrm/xfrm_policy.c +++ b/net/xfrm/xfrm_policy.c @@ -1406,6 +1406,7 @@ static struct dst_entry *xfrm_bundle_create(struct xfrm_policy *policy, struct net *net = xp_net(policy); unsigned long now = jiffies; struct net_device *dev; + struct xfrm_mode *inner_mode; struct dst_entry *dst_prev = NULL; struct dst_entry *dst0 = NULL; int i = 0; @@ -1436,6 +1437,17 @@ static struct dst_entry *xfrm_bundle_create(struct xfrm_policy *policy, goto put_states; } + if (xfrm[i]->sel.family == AF_UNSPEC) { + inner_mode = xfrm_ip2inner_mode(xfrm[i], + xfrm_af2proto(family)); + if (!inner_mode) { + err = -EAFNOSUPPORT; + dst_release(dst); + goto put_states; + } + } else + inner_mode = xfrm[i]->inner_mode; + if (!dst_prev) dst0 = dst1; else { @@ -1464,7 +1476,7 @@ static struct dst_entry *xfrm_bundle_create(struct xfrm_policy *policy, dst1->lastuse = now; dst1->input = dst_discard; - dst1->output = xfrm[i]->outer_mode->afinfo->output; + dst1->output = inner_mode->afinfo->output; dst1->next = dst_prev; dst_prev = dst1; diff --git a/net/xfrm/xfrm_replay.c b/net/xfrm/xfrm_replay.c index e8a781422fe..47f1b8638df 100644 --- a/net/xfrm/xfrm_replay.c +++ b/net/xfrm/xfrm_replay.c @@ -535,6 +535,9 @@ int xfrm_init_replay(struct xfrm_state *x) replay_esn->bmp_len * sizeof(__u32) * 8) return -EINVAL; + if ((x->props.flags & XFRM_STATE_ESN) && replay_esn->replay_window == 0) + return -EINVAL; + if ((x->props.flags & XFRM_STATE_ESN) && x->replay_esn) x->repl = &xfrm_replay_esn; else diff --git a/scripts/Makefile.build b/scripts/Makefile.build index d5f925abe4d..6165622c3e2 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -244,14 +244,19 @@ endif ifdef CONFIG_FTRACE_MCOUNT_RECORD ifdef BUILD_C_RECORDMCOUNT +ifeq ("$(origin RECORDMCOUNT_WARN)", "command line") + RECORDMCOUNT_FLAGS = -w +endif # Due to recursion, we must skip empty.o. # The empty.o file is created in the make process in order to determine # the target endianness and word size. It is made before all other C # files, including recordmcount. sub_cmd_record_mcount = \ if [ $(@) != "scripts/mod/empty.o" ]; then \ - $(objtree)/scripts/recordmcount "$(@)"; \ + $(objtree)/scripts/recordmcount $(RECORDMCOUNT_FLAGS) "$(@)"; \ fi; +recordmcount_source := $(srctree)/scripts/recordmcount.c \ + $(srctree)/scripts/recordmcount.h else sub_cmd_record_mcount = set -e ; perl $(srctree)/scripts/recordmcount.pl "$(ARCH)" \ "$(if $(CONFIG_CPU_BIG_ENDIAN),big,little)" \ @@ -259,6 +264,7 @@ sub_cmd_record_mcount = set -e ; perl $(srctree)/scripts/recordmcount.pl "$(ARCH "$(OBJDUMP)" "$(OBJCOPY)" "$(CC) $(KBUILD_CFLAGS)" \ "$(LD)" "$(NM)" "$(RM)" "$(MV)" \ "$(if $(part-of-module),1,0)" "$(@)"; +recordmcount_source := $(srctree)/scripts/recordmcount.pl endif cmd_record_mcount = \ if [ "$(findstring -pg,$(_c_flags))" = "-pg" ]; then \ @@ -279,13 +285,13 @@ define rule_cc_o_c endef # Built-in and composite module parts -$(obj)/%.o: $(src)/%.c FORCE +$(obj)/%.o: $(src)/%.c $(recordmcount_source) FORCE $(call cmd,force_checksrc) $(call if_changed_rule,cc_o_c) # Single-part modules are special since we need to mark them in $(MODVERDIR) -$(single-used-m): $(obj)/%.o: $(src)/%.c FORCE +$(single-used-m): $(obj)/%.o: $(src)/%.c $(recordmcount_source) FORCE $(call cmd,force_checksrc) $(call if_changed_rule,cc_o_c) @{ echo $(@:.o=.ko); echo $@; } > $(MODVERDIR)/$(@F:.o=.mod) diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index cd104afcc5f..413c53693e6 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -420,11 +420,10 @@ static int parse_elf(struct elf_info *info, const char *filename) return 0; } - if (hdr->e_shnum == 0) { + if (hdr->e_shnum == SHN_UNDEF) { /* * There are more than 64k sections, * read count from .sh_size. - * note: it doesn't need shndx2secindex() */ info->num_sections = TO_NATIVE(sechdrs[0].sh_size); } @@ -432,8 +431,7 @@ static int parse_elf(struct elf_info *info, const char *filename) info->num_sections = hdr->e_shnum; } if (hdr->e_shstrndx == SHN_XINDEX) { - info->secindex_strings = - shndx2secindex(TO_NATIVE(sechdrs[0].sh_link)); + info->secindex_strings = TO_NATIVE(sechdrs[0].sh_link); } else { info->secindex_strings = hdr->e_shstrndx; @@ -489,7 +487,7 @@ static int parse_elf(struct elf_info *info, const char *filename) sechdrs[i].sh_offset; info->symtab_stop = (void *)hdr + sechdrs[i].sh_offset + sechdrs[i].sh_size; - sh_link_idx = shndx2secindex(sechdrs[i].sh_link); + sh_link_idx = sechdrs[i].sh_link; info->strtab = (void *)hdr + sechdrs[sh_link_idx].sh_offset; } @@ -516,11 +514,9 @@ static int parse_elf(struct elf_info *info, const char *filename) if (symtab_shndx_idx != ~0U) { Elf32_Word *p; - if (symtab_idx != - shndx2secindex(sechdrs[symtab_shndx_idx].sh_link)) + if (symtab_idx != sechdrs[symtab_shndx_idx].sh_link) fatal("%s: SYMTAB_SHNDX has bad sh_link: %u!=%u\n", - filename, - shndx2secindex(sechdrs[symtab_shndx_idx].sh_link), + filename, sechdrs[symtab_shndx_idx].sh_link, symtab_idx); /* Fix endianness */ for (p = info->symtab_shndx_start; p < info->symtab_shndx_stop; @@ -1446,7 +1442,7 @@ static unsigned int *reloc_location(struct elf_info *elf, Elf_Shdr *sechdr, Elf_Rela *r) { Elf_Shdr *sechdrs = elf->sechdrs; - int section = shndx2secindex(sechdr->sh_info); + int section = sechdr->sh_info; return (void *)elf->hdr + sechdrs[section].sh_offset + r->r_offset; diff --git a/scripts/mod/modpost.h b/scripts/mod/modpost.h index 0388cfccac8..2031119080d 100644 --- a/scripts/mod/modpost.h +++ b/scripts/mod/modpost.h @@ -145,33 +145,22 @@ static inline int is_shndx_special(unsigned int i) return i != SHN_XINDEX && i >= SHN_LORESERVE && i <= SHN_HIRESERVE; } -/* shndx is in [0..SHN_LORESERVE) U (SHN_HIRESERVE, 0xfffffff], thus: - * shndx == 0 <=> sechdrs[0] - * ...... - * shndx == SHN_LORESERVE-1 <=> sechdrs[SHN_LORESERVE-1] - * shndx == SHN_HIRESERVE+1 <=> sechdrs[SHN_LORESERVE] - * shndx == SHN_HIRESERVE+2 <=> sechdrs[SHN_LORESERVE+1] - * ...... - * fyi: sym->st_shndx is uint16, SHN_LORESERVE = ff00, SHN_HIRESERVE = ffff, - * so basically we map 0000..feff -> 0000..feff - * ff00..ffff -> (you are a bad boy, dont do it) - * 10000..xxxx -> ff00..(xxxx-0x100) +/* + * Move reserved section indices SHN_LORESERVE..SHN_HIRESERVE out of + * the way to -256..-1, to avoid conflicting with real section + * indices. */ -static inline unsigned int shndx2secindex(unsigned int i) -{ - if (i <= SHN_HIRESERVE) - return i; - return i - (SHN_HIRESERVE + 1 - SHN_LORESERVE); -} +#define SPECIAL(i) ((i) - (SHN_HIRESERVE + 1)) /* Accessor for sym->st_shndx, hides ugliness of "64k sections" */ static inline unsigned int get_secindex(const struct elf_info *info, const Elf_Sym *sym) { + if (is_shndx_special(sym->st_shndx)) + return SPECIAL(sym->st_shndx); if (sym->st_shndx != SHN_XINDEX) return sym->st_shndx; - return shndx2secindex(info->symtab_shndx_start[sym - - info->symtab_start]); + return info->symtab_shndx_start[sym - info->symtab_start]; } /* file2alias.c */ diff --git a/scripts/module-common.lds b/scripts/module-common.lds index 47a1f9ae0ed..0865b3e752b 100644 --- a/scripts/module-common.lds +++ b/scripts/module-common.lds @@ -5,4 +5,15 @@ */ SECTIONS { /DISCARD/ : { *(.discard) } + + __ksymtab : { *(SORT(___ksymtab+*)) } + __ksymtab_gpl : { *(SORT(___ksymtab_gpl+*)) } + __ksymtab_unused : { *(SORT(___ksymtab_unused+*)) } + __ksymtab_unused_gpl : { *(SORT(___ksymtab_unused_gpl+*)) } + __ksymtab_gpl_future : { *(SORT(___ksymtab_gpl_future+*)) } + __kcrctab : { *(SORT(___kcrctab+*)) } + __kcrctab_gpl : { *(SORT(___kcrctab_gpl+*)) } + __kcrctab_unused : { *(SORT(___kcrctab_unused+*)) } + __kcrctab_unused_gpl : { *(SORT(___kcrctab_unused_gpl+*)) } + __kcrctab_gpl_future : { *(SORT(___kcrctab_gpl_future+*)) } } diff --git a/scripts/recordmcount.c b/scripts/recordmcount.c index f9f6f52db77..ee52cb8e17a 100644 --- a/scripts/recordmcount.c +++ b/scripts/recordmcount.c @@ -24,6 +24,7 @@ #include <sys/types.h> #include <sys/mman.h> #include <sys/stat.h> +#include <getopt.h> #include <elf.h> #include <fcntl.h> #include <setjmp.h> @@ -39,6 +40,7 @@ static char gpfx; /* prefix for global symbol name (sometimes '_') */ static struct stat sb; /* Remember .st_size, etc. */ static jmp_buf jmpenv; /* setjmp/longjmp per-file error escape */ static const char *altmcount; /* alternate mcount symbol name */ +static int warn_on_notrace_sect; /* warn when section has mcount not being recorded */ /* setjmp() return values */ enum { @@ -78,7 +80,7 @@ static off_t ulseek(int const fd, off_t const offset, int const whence) { off_t const w = lseek(fd, offset, whence); - if ((off_t)-1 == w) { + if (w == (off_t)-1) { perror("lseek"); fail_file(); } @@ -111,13 +113,41 @@ static void * umalloc(size_t size) { void *const addr = malloc(size); - if (0 == addr) { + if (addr == 0) { fprintf(stderr, "malloc failed: %zu bytes\n", size); fail_file(); } return addr; } +static unsigned char ideal_nop5_x86_64[5] = { 0x0f, 0x1f, 0x44, 0x00, 0x00 }; +static unsigned char ideal_nop5_x86_32[5] = { 0x3e, 0x8d, 0x74, 0x26, 0x00 }; +static unsigned char *ideal_nop; + +static char rel_type_nop; + +static int (*make_nop)(void *map, size_t const offset); + +static int make_nop_x86(void *map, size_t const offset) +{ + uint32_t *ptr; + unsigned char *op; + + /* Confirm we have 0xe8 0x0 0x0 0x0 0x0 */ + ptr = map + offset; + if (*ptr != 0) + return -1; + + op = map + offset - 1; + if (*op != 0xe8) + return -1; + + /* convert to nop */ + ulseek(fd_map, offset - 1, SEEK_SET); + uwrite(fd_map, ideal_nop, 5); + return 0; +} + /* * Get the whole file as a programming convenience in order to avoid * malloc+lseek+read+free of many pieces. If successful, then mmap @@ -136,7 +166,7 @@ static void *mmap_file(char const *fname) void *addr; fd_map = open(fname, O_RDWR); - if (0 > fd_map || 0 > fstat(fd_map, &sb)) { + if (fd_map < 0 || fstat(fd_map, &sb) < 0) { perror(fname); fail_file(); } @@ -147,7 +177,7 @@ static void *mmap_file(char const *fname) addr = mmap(0, sb.st_size, PROT_READ|PROT_WRITE, MAP_PRIVATE, fd_map, 0); mmap_failed = 0; - if (MAP_FAILED == addr) { + if (addr == MAP_FAILED) { mmap_failed = 1; addr = umalloc(sb.st_size); uread(fd_map, addr, sb.st_size); @@ -206,12 +236,13 @@ static uint32_t (*w2)(uint16_t); static int is_mcounted_section_name(char const *const txtname) { - return 0 == strcmp(".text", txtname) || - 0 == strcmp(".ref.text", txtname) || - 0 == strcmp(".sched.text", txtname) || - 0 == strcmp(".spinlock.text", txtname) || - 0 == strcmp(".irqentry.text", txtname) || - 0 == strcmp(".text.unlikely", txtname); + return strcmp(".text", txtname) == 0 || + strcmp(".ref.text", txtname) == 0 || + strcmp(".sched.text", txtname) == 0 || + strcmp(".spinlock.text", txtname) == 0 || + strcmp(".irqentry.text", txtname) == 0 || + strcmp(".kprobes.text", txtname) == 0 || + strcmp(".text.unlikely", txtname) == 0; } /* 32 bit and 64 bit are very similar */ @@ -264,43 +295,48 @@ do_file(char const *const fname) w8 = w8nat; switch (ehdr->e_ident[EI_DATA]) { static unsigned int const endian = 1; - default: { + default: fprintf(stderr, "unrecognized ELF data encoding %d: %s\n", ehdr->e_ident[EI_DATA], fname); fail_file(); - } break; - case ELFDATA2LSB: { - if (1 != *(unsigned char const *)&endian) { + break; + case ELFDATA2LSB: + if (*(unsigned char const *)&endian != 1) { /* main() is big endian, file.o is little endian. */ w = w4rev; w2 = w2rev; w8 = w8rev; } - } break; - case ELFDATA2MSB: { - if (0 != *(unsigned char const *)&endian) { + break; + case ELFDATA2MSB: + if (*(unsigned char const *)&endian != 0) { /* main() is little endian, file.o is big endian. */ w = w4rev; w2 = w2rev; w8 = w8rev; } - } break; + break; } /* end switch */ - if (0 != memcmp(ELFMAG, ehdr->e_ident, SELFMAG) - || ET_REL != w2(ehdr->e_type) - || EV_CURRENT != ehdr->e_ident[EI_VERSION]) { + if (memcmp(ELFMAG, ehdr->e_ident, SELFMAG) != 0 + || w2(ehdr->e_type) != ET_REL + || ehdr->e_ident[EI_VERSION] != EV_CURRENT) { fprintf(stderr, "unrecognized ET_REL file %s\n", fname); fail_file(); } gpfx = 0; switch (w2(ehdr->e_machine)) { - default: { + default: fprintf(stderr, "unrecognized e_machine %d %s\n", w2(ehdr->e_machine), fname); fail_file(); - } break; - case EM_386: reltype = R_386_32; break; + break; + case EM_386: + reltype = R_386_32; + make_nop = make_nop_x86; + ideal_nop = ideal_nop5_x86_32; + mcount_adjust_32 = -1; + break; case EM_ARM: reltype = R_ARM_ABS32; altmcount = "__gnu_mcount_nc"; break; @@ -311,67 +347,91 @@ do_file(char const *const fname) case EM_S390: /* reltype: e_class */ gpfx = '_'; break; case EM_SH: reltype = R_SH_DIR32; break; case EM_SPARCV9: reltype = R_SPARC_64; gpfx = '_'; break; - case EM_X86_64: reltype = R_X86_64_64; break; + case EM_X86_64: + make_nop = make_nop_x86; + ideal_nop = ideal_nop5_x86_64; + reltype = R_X86_64_64; + mcount_adjust_64 = -1; + break; } /* end switch */ switch (ehdr->e_ident[EI_CLASS]) { - default: { + default: fprintf(stderr, "unrecognized ELF class %d %s\n", ehdr->e_ident[EI_CLASS], fname); fail_file(); - } break; - case ELFCLASS32: { - if (sizeof(Elf32_Ehdr) != w2(ehdr->e_ehsize) - || sizeof(Elf32_Shdr) != w2(ehdr->e_shentsize)) { + break; + case ELFCLASS32: + if (w2(ehdr->e_ehsize) != sizeof(Elf32_Ehdr) + || w2(ehdr->e_shentsize) != sizeof(Elf32_Shdr)) { fprintf(stderr, "unrecognized ET_REL file: %s\n", fname); fail_file(); } - if (EM_S390 == w2(ehdr->e_machine)) + if (w2(ehdr->e_machine) == EM_S390) { reltype = R_390_32; - if (EM_MIPS == w2(ehdr->e_machine)) { + mcount_adjust_32 = -4; + } + if (w2(ehdr->e_machine) == EM_MIPS) { reltype = R_MIPS_32; is_fake_mcount32 = MIPS32_is_fake_mcount; } do32(ehdr, fname, reltype); - } break; + break; case ELFCLASS64: { Elf64_Ehdr *const ghdr = (Elf64_Ehdr *)ehdr; - if (sizeof(Elf64_Ehdr) != w2(ghdr->e_ehsize) - || sizeof(Elf64_Shdr) != w2(ghdr->e_shentsize)) { + if (w2(ghdr->e_ehsize) != sizeof(Elf64_Ehdr) + || w2(ghdr->e_shentsize) != sizeof(Elf64_Shdr)) { fprintf(stderr, "unrecognized ET_REL file: %s\n", fname); fail_file(); } - if (EM_S390 == w2(ghdr->e_machine)) + if (w2(ghdr->e_machine) == EM_S390) { reltype = R_390_64; - if (EM_MIPS == w2(ghdr->e_machine)) { + mcount_adjust_64 = -8; + } + if (w2(ghdr->e_machine) == EM_MIPS) { reltype = R_MIPS_64; Elf64_r_sym = MIPS64_r_sym; Elf64_r_info = MIPS64_r_info; is_fake_mcount64 = MIPS64_is_fake_mcount; } do64(ghdr, fname, reltype); - } break; + break; + } } /* end switch */ cleanup(); } int -main(int argc, char const *argv[]) +main(int argc, char *argv[]) { const char ftrace[] = "/ftrace.o"; int ftrace_size = sizeof(ftrace) - 1; int n_error = 0; /* gcc-4.3.0 false positive complaint */ + int c; + int i; + + while ((c = getopt(argc, argv, "w")) >= 0) { + switch (c) { + case 'w': + warn_on_notrace_sect = 1; + break; + default: + fprintf(stderr, "usage: recordmcount [-w] file.o...\n"); + return 0; + } + } - if (argc <= 1) { - fprintf(stderr, "usage: recordmcount file.o...\n"); + if ((argc - optind) < 1) { + fprintf(stderr, "usage: recordmcount [-w] file.o...\n"); return 0; } /* Process each file in turn, allowing deep failure. */ - for (--argc, ++argv; 0 < argc; --argc, ++argv) { + for (i = optind; i < argc; i++) { + char *file = argv[i]; int const sjval = setjmp(jmpenv); int len; @@ -380,29 +440,29 @@ main(int argc, char const *argv[]) * function but does not call it. Since ftrace.o should * not be traced anyway, we just skip it. */ - len = strlen(argv[0]); + len = strlen(file); if (len >= ftrace_size && - strcmp(argv[0] + (len - ftrace_size), ftrace) == 0) + strcmp(file + (len - ftrace_size), ftrace) == 0) continue; switch (sjval) { - default: { - fprintf(stderr, "internal error: %s\n", argv[0]); + default: + fprintf(stderr, "internal error: %s\n", file); exit(1); - } break; - case SJ_SETJMP: { /* normal sequence */ + break; + case SJ_SETJMP: /* normal sequence */ /* Avoid problems if early cleanup() */ fd_map = -1; ehdr_curr = NULL; mmap_failed = 1; - do_file(argv[0]); - } break; - case SJ_FAIL: { /* error in do_file or below */ + do_file(file); + break; + case SJ_FAIL: /* error in do_file or below */ ++n_error; - } break; - case SJ_SUCCEED: { /* premature success */ + break; + case SJ_SUCCEED: /* premature success */ /* do nothing */ - } break; + break; } /* end switch */ } return !!n_error; diff --git a/scripts/recordmcount.h b/scripts/recordmcount.h index baf187bee98..4be60364a40 100644 --- a/scripts/recordmcount.h +++ b/scripts/recordmcount.h @@ -22,11 +22,15 @@ #undef is_fake_mcount #undef fn_is_fake_mcount #undef MIPS_is_fake_mcount +#undef mcount_adjust #undef sift_rel_mcount +#undef nop_mcount #undef find_secsym_ndx #undef __has_rel_mcount #undef has_rel_mcount #undef tot_relsize +#undef get_mcountsym +#undef get_sym_str_and_relp #undef do_func #undef Elf_Addr #undef Elf_Ehdr @@ -49,14 +53,18 @@ #ifdef RECORD_MCOUNT_64 # define append_func append64 # define sift_rel_mcount sift64_rel_mcount +# define nop_mcount nop_mcount_64 # define find_secsym_ndx find64_secsym_ndx # define __has_rel_mcount __has64_rel_mcount # define has_rel_mcount has64_rel_mcount # define tot_relsize tot64_relsize +# define get_sym_str_and_relp get_sym_str_and_relp_64 # define do_func do64 +# define get_mcountsym get_mcountsym_64 # define is_fake_mcount is_fake_mcount64 # define fn_is_fake_mcount fn_is_fake_mcount64 # define MIPS_is_fake_mcount MIPS64_is_fake_mcount +# define mcount_adjust mcount_adjust_64 # define Elf_Addr Elf64_Addr # define Elf_Ehdr Elf64_Ehdr # define Elf_Shdr Elf64_Shdr @@ -77,14 +85,18 @@ #else # define append_func append32 # define sift_rel_mcount sift32_rel_mcount +# define nop_mcount nop_mcount_32 # define find_secsym_ndx find32_secsym_ndx # define __has_rel_mcount __has32_rel_mcount # define has_rel_mcount has32_rel_mcount # define tot_relsize tot32_relsize +# define get_sym_str_and_relp get_sym_str_and_relp_32 # define do_func do32 +# define get_mcountsym get_mcountsym_32 # define is_fake_mcount is_fake_mcount32 # define fn_is_fake_mcount fn_is_fake_mcount32 # define MIPS_is_fake_mcount MIPS32_is_fake_mcount +# define mcount_adjust mcount_adjust_32 # define Elf_Addr Elf32_Addr # define Elf_Ehdr Elf32_Ehdr # define Elf_Shdr Elf32_Shdr @@ -123,6 +135,8 @@ static void fn_ELF_R_INFO(Elf_Rel *const rp, unsigned sym, unsigned type) } static void (*Elf_r_info)(Elf_Rel *const rp, unsigned sym, unsigned type) = fn_ELF_R_INFO; +static int mcount_adjust = 0; + /* * MIPS mcount long call has 2 _mcount symbols, only the position of the 1st * _mcount symbol is needed for dynamic function tracer, with it, to disable @@ -234,6 +248,49 @@ static void append_func(Elf_Ehdr *const ehdr, uwrite(fd_map, ehdr, sizeof(*ehdr)); } +static unsigned get_mcountsym(Elf_Sym const *const sym0, + Elf_Rel const *relp, + char const *const str0) +{ + unsigned mcountsym = 0; + + Elf_Sym const *const symp = + &sym0[Elf_r_sym(relp)]; + char const *symname = &str0[w(symp->st_name)]; + char const *mcount = gpfx == '_' ? "_mcount" : "mcount"; + + if (symname[0] == '.') + ++symname; /* ppc64 hack */ + if (strcmp(mcount, symname) == 0 || + (altmcount && strcmp(altmcount, symname) == 0)) + mcountsym = Elf_r_sym(relp); + + return mcountsym; +} + +static void get_sym_str_and_relp(Elf_Shdr const *const relhdr, + Elf_Ehdr const *const ehdr, + Elf_Sym const **sym0, + char const **str0, + Elf_Rel const **relp) +{ + Elf_Shdr *const shdr0 = (Elf_Shdr *)(_w(ehdr->e_shoff) + + (void *)ehdr); + unsigned const symsec_sh_link = w(relhdr->sh_link); + Elf_Shdr const *const symsec = &shdr0[symsec_sh_link]; + Elf_Shdr const *const strsec = &shdr0[w(symsec->sh_link)]; + Elf_Rel const *const rel0 = (Elf_Rel const *)(_w(relhdr->sh_offset) + + (void *)ehdr); + + *sym0 = (Elf_Sym const *)(_w(symsec->sh_offset) + + (void *)ehdr); + + *str0 = (char const *)(_w(strsec->sh_offset) + + (void *)ehdr); + + *relp = rel0; +} + /* * Look at the relocations in order to find the calls to mcount. * Accumulate the section offsets that are found, and their relocation info, @@ -250,47 +307,27 @@ static uint_t *sift_rel_mcount(uint_t *mlocp, { uint_t *const mloc0 = mlocp; Elf_Rel *mrelp = *mrelpp; - Elf_Shdr *const shdr0 = (Elf_Shdr *)(_w(ehdr->e_shoff) - + (void *)ehdr); - unsigned const symsec_sh_link = w(relhdr->sh_link); - Elf_Shdr const *const symsec = &shdr0[symsec_sh_link]; - Elf_Sym const *const sym0 = (Elf_Sym const *)(_w(symsec->sh_offset) - + (void *)ehdr); - - Elf_Shdr const *const strsec = &shdr0[w(symsec->sh_link)]; - char const *const str0 = (char const *)(_w(strsec->sh_offset) - + (void *)ehdr); - - Elf_Rel const *const rel0 = (Elf_Rel const *)(_w(relhdr->sh_offset) - + (void *)ehdr); + Elf_Sym const *sym0; + char const *str0; + Elf_Rel const *relp; unsigned rel_entsize = _w(relhdr->sh_entsize); unsigned const nrel = _w(relhdr->sh_size) / rel_entsize; - Elf_Rel const *relp = rel0; - unsigned mcountsym = 0; unsigned t; + get_sym_str_and_relp(relhdr, ehdr, &sym0, &str0, &relp); + for (t = nrel; t; --t) { - if (!mcountsym) { - Elf_Sym const *const symp = - &sym0[Elf_r_sym(relp)]; - char const *symname = &str0[w(symp->st_name)]; - char const *mcount = '_' == gpfx ? "_mcount" : "mcount"; - - if ('.' == symname[0]) - ++symname; /* ppc64 hack */ - if (0 == strcmp(mcount, symname) || - (altmcount && 0 == strcmp(altmcount, symname))) - mcountsym = Elf_r_sym(relp); - } + if (!mcountsym) + mcountsym = get_mcountsym(sym0, relp, str0); if (mcountsym == Elf_r_sym(relp) && !is_fake_mcount(relp)) { - uint_t const addend = _w(_w(relp->r_offset) - recval); - + uint_t const addend = + _w(_w(relp->r_offset) - recval + mcount_adjust); mrelp->r_offset = _w(offbase + ((void *)mlocp - (void *)mloc0)); Elf_r_info(mrelp, recsym, reltype); - if (sizeof(Elf_Rela) == rel_entsize) { + if (rel_entsize == sizeof(Elf_Rela)) { ((Elf_Rela *)mrelp)->r_addend = addend; *mlocp++ = 0; } else @@ -304,6 +341,63 @@ static uint_t *sift_rel_mcount(uint_t *mlocp, return mlocp; } +/* + * Read the relocation table again, but this time its called on sections + * that are not going to be traced. The mcount calls here will be converted + * into nops. + */ +static void nop_mcount(Elf_Shdr const *const relhdr, + Elf_Ehdr const *const ehdr, + const char *const txtname) +{ + Elf_Shdr *const shdr0 = (Elf_Shdr *)(_w(ehdr->e_shoff) + + (void *)ehdr); + Elf_Sym const *sym0; + char const *str0; + Elf_Rel const *relp; + Elf_Shdr const *const shdr = &shdr0[w(relhdr->sh_info)]; + unsigned rel_entsize = _w(relhdr->sh_entsize); + unsigned const nrel = _w(relhdr->sh_size) / rel_entsize; + unsigned mcountsym = 0; + unsigned t; + int once = 0; + + get_sym_str_and_relp(relhdr, ehdr, &sym0, &str0, &relp); + + for (t = nrel; t; --t) { + int ret = -1; + + if (!mcountsym) + mcountsym = get_mcountsym(sym0, relp, str0); + + if (mcountsym == Elf_r_sym(relp) && !is_fake_mcount(relp)) { + if (make_nop) + ret = make_nop((void *)ehdr, shdr->sh_offset + relp->r_offset); + if (warn_on_notrace_sect && !once) { + printf("Section %s has mcount callers being ignored\n", + txtname); + once = 1; + /* just warn? */ + if (!make_nop) + return; + } + } + + /* + * If we successfully removed the mcount, mark the relocation + * as a nop (don't do anything with it). + */ + if (!ret) { + Elf_Rel rel; + rel = *(Elf_Rel *)relp; + Elf_r_info(&rel, Elf_r_sym(relp), rel_type_nop); + ulseek(fd_map, (void *)relp - (void *)ehdr, SEEK_SET); + uwrite(fd_map, &rel, sizeof(rel)); + } + relp = (Elf_Rel const *)(rel_entsize + (void *)relp); + } +} + /* * Find a symbol in the given section, to be used as the base for relocating @@ -354,13 +448,13 @@ __has_rel_mcount(Elf_Shdr const *const relhdr, /* is SHT_REL or SHT_RELA */ Elf_Shdr const *const txthdr = &shdr0[w(relhdr->sh_info)]; char const *const txtname = &shstrtab[w(txthdr->sh_name)]; - if (0 == strcmp("__mcount_loc", txtname)) { + if (strcmp("__mcount_loc", txtname) == 0) { fprintf(stderr, "warning: __mcount_loc already exists: %s\n", fname); succeed_file(); } - if (SHT_PROGBITS != w(txthdr->sh_type) || - !is_mcounted_section_name(txtname)) + if (w(txthdr->sh_type) != SHT_PROGBITS || + !(w(txthdr->sh_flags) & SHF_EXECINSTR)) return NULL; return txtname; } @@ -370,7 +464,7 @@ static char const *has_rel_mcount(Elf_Shdr const *const relhdr, char const *const shstrtab, char const *const fname) { - if (SHT_REL != w(relhdr->sh_type) && SHT_RELA != w(relhdr->sh_type)) + if (w(relhdr->sh_type) != SHT_REL && w(relhdr->sh_type) != SHT_RELA) return NULL; return __has_rel_mcount(relhdr, shdr0, shstrtab, fname); } @@ -383,9 +477,11 @@ static unsigned tot_relsize(Elf_Shdr const *const shdr0, { unsigned totrelsz = 0; Elf_Shdr const *shdrp = shdr0; + char const *txtname; for (; nhdr; --nhdr, ++shdrp) { - if (has_rel_mcount(shdrp, shdr0, shstrtab, fname)) + txtname = has_rel_mcount(shdrp, shdr0, shstrtab, fname); + if (txtname && is_mcounted_section_name(txtname)) totrelsz += _w(shdrp->sh_size); } return totrelsz; @@ -421,7 +517,7 @@ do_func(Elf_Ehdr *const ehdr, char const *const fname, unsigned const reltype) for (relhdr = shdr0, k = nhdr; k; --k, ++relhdr) { char const *const txtname = has_rel_mcount(relhdr, shdr0, shstrtab, fname); - if (txtname) { + if (txtname && is_mcounted_section_name(txtname)) { uint_t recval = 0; unsigned const recsym = find_secsym_ndx( w(relhdr->sh_info), txtname, &recval, @@ -432,6 +528,12 @@ do_func(Elf_Ehdr *const ehdr, char const *const fname, unsigned const reltype) mlocp = sift_rel_mcount(mlocp, (void *)mlocp - (void *)mloc0, &mrelp, relhdr, ehdr, recsym, recval, reltype); + } else if (txtname && (warn_on_notrace_sect || make_nop)) { + /* + * This section is ignored by ftrace, but still + * has mcount calls. Convert them to nops now. + */ + nop_mcount(relhdr, ehdr, txtname); } } if (mloc0 != mlocp) { diff --git a/scripts/recordmcount.pl b/scripts/recordmcount.pl index 4be0deea71c..858966ab019 100755 --- a/scripts/recordmcount.pl +++ b/scripts/recordmcount.pl @@ -134,6 +134,7 @@ my %text_sections = ( ".sched.text" => 1, ".spinlock.text" => 1, ".irqentry.text" => 1, + ".kprobes.text" => 1, ".text.unlikely" => 1, ); @@ -222,6 +223,7 @@ if ($arch eq "x86_64") { $mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\smcount([+-]0x[0-9a-zA-Z]+)?\$"; $type = ".quad"; $alignment = 8; + $mcount_adjust = -1; # force flags for this arch $ld .= " -m elf_x86_64"; @@ -231,6 +233,7 @@ if ($arch eq "x86_64") { } elsif ($arch eq "i386") { $alignment = 4; + $mcount_adjust = -1; # force flags for this arch $ld .= " -m elf_i386"; @@ -240,12 +243,14 @@ if ($arch eq "x86_64") { } elsif ($arch eq "s390" && $bits == 32) { $mcount_regex = "^\\s*([0-9a-fA-F]+):\\s*R_390_32\\s+_mcount\$"; + $mcount_adjust = -4; $alignment = 4; $ld .= " -m elf_s390"; $cc .= " -m31"; } elsif ($arch eq "s390" && $bits == 64) { $mcount_regex = "^\\s*([0-9a-fA-F]+):\\s*R_390_(PC|PLT)32DBL\\s+_mcount\\+0x2\$"; + $mcount_adjust = -8; $alignment = 8; $type = ".quad"; $ld .= " -m elf64_s390"; diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index f7cf0ea6fae..8fb24884300 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -1578,7 +1578,8 @@ static int may_create(struct inode *dir, return rc; if (!newsid || !(sbsec->flags & SE_SBLABELSUPP)) { - rc = security_transition_sid(sid, dsec->sid, tclass, NULL, &newsid); + rc = security_transition_sid(sid, dsec->sid, tclass, + &dentry->d_name, &newsid); if (rc) return rc; } diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c index e7b850ad57e..7102457661d 100644 --- a/security/selinux/ss/policydb.c +++ b/security/selinux/ss/policydb.c @@ -502,7 +502,7 @@ static int policydb_index(struct policydb *p) goto out; rc = flex_array_prealloc(p->type_val_to_struct_array, 0, - p->p_types.nprim - 1, GFP_KERNEL | __GFP_ZERO); + p->p_types.nprim, GFP_KERNEL | __GFP_ZERO); if (rc) goto out; @@ -519,7 +519,7 @@ static int policydb_index(struct policydb *p) goto out; rc = flex_array_prealloc(p->sym_val_to_name[i], - 0, p->symtab[i].nprim - 1, + 0, p->symtab[i].nprim, GFP_KERNEL | __GFP_ZERO); if (rc) goto out; @@ -1819,8 +1819,6 @@ static int filename_trans_read(struct policydb *p, void *fp) goto out; nel = le32_to_cpu(buf[0]); - printk(KERN_ERR "%s: nel=%d\n", __func__, nel); - last = p->filename_trans; while (last && last->next) last = last->next; @@ -1857,8 +1855,6 @@ static int filename_trans_read(struct policydb *p, void *fp) goto out; name[len] = 0; - printk(KERN_ERR "%s: ft=%p ft->name=%p ft->name=%s\n", __func__, ft, ft->name, ft->name); - rc = next_entry(buf, fp, sizeof(u32) * 4); if (rc) goto out; @@ -2375,7 +2371,7 @@ int policydb_read(struct policydb *p, void *fp) goto bad; /* preallocate so we don't have to worry about the put ever failing */ - rc = flex_array_prealloc(p->type_attr_map_array, 0, p->p_types.nprim - 1, + rc = flex_array_prealloc(p->type_attr_map_array, 0, p->p_types.nprim, GFP_KERNEL | __GFP_ZERO); if (rc) goto bad; diff --git a/sound/soc/codecs/ssm2602.c b/sound/soc/codecs/ssm2602.c index 2727befd158..b04d28039c1 100644 --- a/sound/soc/codecs/ssm2602.c +++ b/sound/soc/codecs/ssm2602.c @@ -139,7 +139,7 @@ SOC_DOUBLE_R("Capture Volume", SSM2602_LINVOL, SSM2602_RINVOL, 0, 31, 0), SOC_DOUBLE_R("Capture Switch", SSM2602_LINVOL, SSM2602_RINVOL, 7, 1, 1), SOC_SINGLE("Mic Boost (+20dB)", SSM2602_APANA, 0, 1, 0), -SOC_SINGLE("Mic Boost2 (+20dB)", SSM2602_APANA, 7, 1, 0), +SOC_SINGLE("Mic Boost2 (+20dB)", SSM2602_APANA, 8, 1, 0), SOC_SINGLE("Mic Switch", SSM2602_APANA, 1, 1, 1), SOC_SINGLE("Sidetone Playback Volume", SSM2602_APANA, 6, 3, 1), @@ -602,7 +602,7 @@ static struct snd_soc_codec_driver soc_codec_dev_ssm2602 = { .read = ssm2602_read_reg_cache, .write = ssm2602_write, .set_bias_level = ssm2602_set_bias_level, - .reg_cache_size = sizeof(ssm2602_reg), + .reg_cache_size = ARRAY_SIZE(ssm2602_reg), .reg_word_size = sizeof(u16), .reg_cache_default = ssm2602_reg, }; @@ -614,7 +614,7 @@ static struct snd_soc_codec_driver soc_codec_dev_ssm2602 = { * low = 0x1a * high = 0x1b */ -static int ssm2602_i2c_probe(struct i2c_client *i2c, +static int __devinit ssm2602_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct ssm2602_priv *ssm2602; @@ -635,7 +635,7 @@ static int ssm2602_i2c_probe(struct i2c_client *i2c, return ret; } -static int ssm2602_i2c_remove(struct i2c_client *client) +static int __devexit ssm2602_i2c_remove(struct i2c_client *client) { snd_soc_unregister_codec(&client->dev); kfree(i2c_get_clientdata(client)); @@ -655,7 +655,7 @@ static struct i2c_driver ssm2602_i2c_driver = { .owner = THIS_MODULE, }, .probe = ssm2602_i2c_probe, - .remove = ssm2602_i2c_remove, + .remove = __devexit_p(ssm2602_i2c_remove), .id_table = ssm2602_i2c_id, }; #endif diff --git a/sound/soc/codecs/uda134x.c b/sound/soc/codecs/uda134x.c index 48ffd406a71..a7b8f301bad 100644 --- a/sound/soc/codecs/uda134x.c +++ b/sound/soc/codecs/uda134x.c @@ -601,9 +601,7 @@ static struct snd_soc_codec_driver soc_codec_dev_uda134x = { .reg_cache_step = 1, .read = uda134x_read_reg_cache, .write = uda134x_write, -#ifdef POWER_OFF_ON_STANDBY .set_bias_level = uda134x_set_bias_level, -#endif }; static int __devinit uda134x_codec_probe(struct platform_device *pdev) diff --git a/sound/soc/codecs/wm8903.c b/sound/soc/codecs/wm8903.c index f52b623bb69..824d1c8c8a3 100644 --- a/sound/soc/codecs/wm8903.c +++ b/sound/soc/codecs/wm8903.c @@ -692,7 +692,7 @@ SOC_ENUM("DRC Smoothing Threshold", drc_smoothing), SOC_SINGLE_TLV("DRC Startup Volume", WM8903_DRC_0, 6, 18, 0, drc_tlv_startup), SOC_DOUBLE_R_TLV("Digital Capture Volume", WM8903_ADC_DIGITAL_VOLUME_LEFT, - WM8903_ADC_DIGITAL_VOLUME_RIGHT, 1, 96, 0, digital_tlv), + WM8903_ADC_DIGITAL_VOLUME_RIGHT, 1, 120, 0, digital_tlv), SOC_ENUM("ADC Companding Mode", adc_companding), SOC_SINGLE("ADC Companding Switch", WM8903_AUDIO_INTERFACE_0, 3, 1, 0), diff --git a/sound/soc/davinci/davinci-mcasp.c b/sound/soc/davinci/davinci-mcasp.c index a5af834c8ef..4ddc6d3b667 100644 --- a/sound/soc/davinci/davinci-mcasp.c +++ b/sound/soc/davinci/davinci-mcasp.c @@ -434,17 +434,21 @@ static int davinci_mcasp_set_dai_fmt(struct snd_soc_dai *cpu_dai, mcasp_set_bits(base + DAVINCI_MCASP_ACLKRCTL_REG, ACLKRE); mcasp_set_bits(base + DAVINCI_MCASP_RXFMCTL_REG, AFSRE); - mcasp_set_bits(base + DAVINCI_MCASP_PDIR_REG, (0x7 << 26)); + mcasp_set_bits(base + DAVINCI_MCASP_PDIR_REG, + ACLKX | AHCLKX | AFSX); break; case SND_SOC_DAIFMT_CBM_CFS: /* codec is clock master and frame slave */ - mcasp_set_bits(base + DAVINCI_MCASP_ACLKXCTL_REG, ACLKXE); + mcasp_clr_bits(base + DAVINCI_MCASP_ACLKXCTL_REG, ACLKXE); mcasp_set_bits(base + DAVINCI_MCASP_TXFMCTL_REG, AFSXE); - mcasp_set_bits(base + DAVINCI_MCASP_ACLKRCTL_REG, ACLKRE); + mcasp_clr_bits(base + DAVINCI_MCASP_ACLKRCTL_REG, ACLKRE); mcasp_set_bits(base + DAVINCI_MCASP_RXFMCTL_REG, AFSRE); - mcasp_set_bits(base + DAVINCI_MCASP_PDIR_REG, (0x2d << 26)); + mcasp_clr_bits(base + DAVINCI_MCASP_PDIR_REG, + ACLKX | ACLKR); + mcasp_set_bits(base + DAVINCI_MCASP_PDIR_REG, + AFSX | AFSR); break; case SND_SOC_DAIFMT_CBM_CFM: /* codec is clock and frame master */ @@ -454,7 +458,8 @@ static int davinci_mcasp_set_dai_fmt(struct snd_soc_dai *cpu_dai, mcasp_clr_bits(base + DAVINCI_MCASP_ACLKRCTL_REG, ACLKRE); mcasp_clr_bits(base + DAVINCI_MCASP_RXFMCTL_REG, AFSRE); - mcasp_clr_bits(base + DAVINCI_MCASP_PDIR_REG, (0x3f << 26)); + mcasp_clr_bits(base + DAVINCI_MCASP_PDIR_REG, + ACLKX | AHCLKX | AFSX | ACLKR | AHCLKR | AFSR); break; default: @@ -644,7 +649,7 @@ static void davinci_hw_param(struct davinci_audio_dev *dev, int stream) mcasp_set_reg(dev->base + DAVINCI_MCASP_TXTDM_REG, mask); mcasp_set_bits(dev->base + DAVINCI_MCASP_TXFMT_REG, TXORD); - if ((dev->tdm_slots >= 2) || (dev->tdm_slots <= 32)) + if ((dev->tdm_slots >= 2) && (dev->tdm_slots <= 32)) mcasp_mod_bits(dev->base + DAVINCI_MCASP_TXFMCTL_REG, FSXMOD(dev->tdm_slots), FSXMOD(0x1FF)); else @@ -660,7 +665,7 @@ static void davinci_hw_param(struct davinci_audio_dev *dev, int stream) AHCLKRE); mcasp_set_reg(dev->base + DAVINCI_MCASP_RXTDM_REG, mask); - if ((dev->tdm_slots >= 2) || (dev->tdm_slots <= 32)) + if ((dev->tdm_slots >= 2) && (dev->tdm_slots <= 32)) mcasp_mod_bits(dev->base + DAVINCI_MCASP_RXFMCTL_REG, FSRMOD(dev->tdm_slots), FSRMOD(0x1FF)); else diff --git a/sound/soc/jz4740/jz4740-i2s.c b/sound/soc/jz4740/jz4740-i2s.c index 419bf4f5534..cd22a54b2f1 100644 --- a/sound/soc/jz4740/jz4740-i2s.c +++ b/sound/soc/jz4740/jz4740-i2s.c @@ -133,7 +133,7 @@ static void jz4740_i2s_shutdown(struct snd_pcm_substream *substream, struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai); uint32_t conf; - if (!dai->active) + if (dai->active) return; conf = jz4740_i2s_read(i2s, JZ_REG_AIC_CONF); diff --git a/sound/soc/mid-x86/sst_platform.c b/sound/soc/mid-x86/sst_platform.c index d567c322a2f..6b1f9d3bf34 100644 --- a/sound/soc/mid-x86/sst_platform.c +++ b/sound/soc/mid-x86/sst_platform.c @@ -376,6 +376,11 @@ static int sst_platform_pcm_hw_params(struct snd_pcm_substream *substream, return 0; } +static int sst_platform_pcm_hw_free(struct snd_pcm_substream *substream) +{ + return snd_pcm_lib_free_pages(substream); +} + static struct snd_pcm_ops sst_platform_ops = { .open = sst_platform_open, .close = sst_platform_close, @@ -384,6 +389,7 @@ static struct snd_pcm_ops sst_platform_ops = { .trigger = sst_platform_pcm_trigger, .pointer = sst_platform_pcm_pointer, .hw_params = sst_platform_pcm_hw_params, + .hw_free = sst_platform_pcm_hw_free, }; static void sst_pcm_free(struct snd_pcm *pcm) diff --git a/sound/soc/samsung/goni_wm8994.c b/sound/soc/samsung/goni_wm8994.c index f6b3a3ce591..0e80daee8b6 100644 --- a/sound/soc/samsung/goni_wm8994.c +++ b/sound/soc/samsung/goni_wm8994.c @@ -236,18 +236,18 @@ static struct snd_soc_dai_link goni_dai[] = { .name = "WM8994", .stream_name = "WM8994 HiFi", .cpu_dai_name = "samsung-i2s.0", - .codec_dai_name = "wm8994-hifi", + .codec_dai_name = "wm8994-aif1", .platform_name = "samsung-audio", - .codec_name = "wm8994-codec.0-0x1a", + .codec_name = "wm8994-codec.0-001a", .init = goni_wm8994_init, .ops = &goni_hifi_ops, }, { .name = "WM8994 Voice", .stream_name = "Voice", .cpu_dai_name = "goni-voice-dai", - .codec_dai_name = "wm8994-voice", + .codec_dai_name = "wm8994-aif2", .platform_name = "samsung-audio", - .codec_name = "wm8994-codec.0-0x1a", + .codec_name = "wm8994-codec.0-001a", .ops = &goni_voice_ops, }, }; diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index d8562ce4de7..dd55d106946 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -3291,6 +3291,8 @@ int snd_soc_register_card(struct snd_soc_card *card) if (!card->name || !card->dev) return -EINVAL; + dev_set_drvdata(card->dev, card); + snd_soc_initialize_card_lists(card); soc_init_card_debugfs(card); diff --git a/tools/perf/Documentation/perf-script-perl.txt b/tools/perf/Documentation/perf-script-perl.txt index 5bb41e55a3a..3152cca1550 100644 --- a/tools/perf/Documentation/perf-script-perl.txt +++ b/tools/perf/Documentation/perf-script-perl.txt @@ -63,7 +63,6 @@ The format file for the sched_wakep event defines the following fields field:unsigned char common_flags; field:unsigned char common_preempt_count; field:int common_pid; - field:int common_lock_depth; field:char comm[TASK_COMM_LEN]; field:pid_t pid; diff --git a/tools/perf/Documentation/perf-script-python.txt b/tools/perf/Documentation/perf-script-python.txt index 36b38277422..47102206911 100644 --- a/tools/perf/Documentation/perf-script-python.txt +++ b/tools/perf/Documentation/perf-script-python.txt @@ -463,7 +463,6 @@ The format file for the sched_wakep event defines the following fields field:unsigned char common_flags; field:unsigned char common_preempt_count; field:int common_pid; - field:int common_lock_depth; field:char comm[TASK_COMM_LEN]; field:pid_t pid; diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt index 66f040b3072..86c87e214b1 100644 --- a/tools/perf/Documentation/perf-script.txt +++ b/tools/perf/Documentation/perf-script.txt @@ -113,13 +113,61 @@ OPTIONS Do various checks like samples ordering and lost events. -f:: ---fields +--fields:: Comma separated list of fields to print. Options are: comm, tid, pid, time, cpu, event, trace, sym. Field - list must be prepended with the type, trace, sw or hw, + list can be prepended with the type, trace, sw or hw, to indicate to which event type the field list applies. e.g., -f sw:comm,tid,time,sym and -f trace:time,cpu,trace + perf script -f <fields> + + is equivalent to: + + perf script -f trace:<fields> -f sw:<fields> -f hw:<fields> + + i.e., the specified fields apply to all event types if the type string + is not given. + + The arguments are processed in the order received. A later usage can + reset a prior request. e.g.: + + -f trace: -f comm,tid,time,sym + + The first -f suppresses trace events (field list is ""), but then the + second invocation sets the fields to comm,tid,time,sym. In this case a + warning is given to the user: + + "Overriding previous field request for all events." + + Alternativey, consider the order: + + -f comm,tid,time,sym -f trace: + + The first -f sets the fields for all events and the second -f + suppresses trace events. The user is given a warning message about + the override, and the result of the above is that only S/W and H/W + events are displayed with the given fields. + + For the 'wildcard' option if a user selected field is invalid for an + event type, a message is displayed to the user that the option is + ignored for that type. For example: + + $ perf script -f comm,tid,trace + 'trace' not valid for hardware events. Ignoring. + 'trace' not valid for software events. Ignoring. + + Alternatively, if the type is given an invalid field is specified it + is an error. For example: + + perf script -v -f sw:comm,tid,trace + 'trace' not valid for software events. + + At this point usage is displayed, and perf-script exits. + + Finally, a user may not set fields to none for all event types. + i.e., -f "" is not allowed. + -k:: --vmlinux=<file>:: vmlinux pathname diff --git a/tools/perf/Makefile b/tools/perf/Makefile index 207dee5c5b1..1455413ec7a 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -5,6 +5,8 @@ endif # The default target of this Makefile is... all: +include config/utilities.mak + ifneq ($(OUTPUT),) # check that the output directory actually exists OUTDIR := $(shell cd $(OUTPUT) && /bin/pwd) @@ -13,6 +15,12 @@ endif # Define V to have a more verbose compile. # +# Define PYTHON to point to the python binary if the default +# `python' is not correct; for example: PYTHON=python2 +# +# Define PYTHON_CONFIG to point to the python-config binary if +# the default `$(PYTHON)-config' is not correct. +# # Define ASCIIDOC8 if you want to format documentation with AsciiDoc 8 # # Define DOCBOOK_XSL_172 if you want to format man pages with DocBook XSL v1.72. @@ -35,15 +43,21 @@ ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \ -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \ -e s/sh[234].*/sh/ ) +CC = $(CROSS_COMPILE)gcc +AR = $(CROSS_COMPILE)ar + # Additional ARCH settings for x86 ifeq ($(ARCH),i386) ARCH := x86 endif ifeq ($(ARCH),x86_64) - RAW_ARCH := x86_64 - ARCH := x86 - ARCH_CFLAGS := -DARCH_X86_64 - ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S + ARCH := x86 + IS_X86_64 := $(shell echo __x86_64__ | ${CC} -E -xc - | tail -n 1) + ifeq (${IS_X86_64}, 1) + RAW_ARCH := x86_64 + ARCH_CFLAGS := -DARCH_X86_64 + ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S + endif endif # @@ -119,8 +133,6 @@ lib = lib export prefix bindir sharedir sysconfdir -CC = $(CROSS_COMPILE)gcc -AR = $(CROSS_COMPILE)ar RM = rm -f MKDIR = mkdir FIND = find @@ -130,7 +142,7 @@ INSTALL = install # explicitly what architecture to check for. Fix this up for yours.. SPARSE_FLAGS = -D__BIG_ENDIAN__ -D__powerpc__ --include feature-tests.mak +-include config/feature-tests.mak ifeq ($(call try-cc,$(SOURCE_HELLO),-Werror -fstack-protector-all),y) CFLAGS := $(CFLAGS) -fstack-protector-all @@ -165,12 +177,10 @@ grep-libs = $(filter -l%,$(1)) strip-libs = $(filter-out -l%,$(1)) $(OUTPUT)python/perf.so: $(PYRF_OBJS) - $(QUIET_GEN)( \ - export CFLAGS="$(BASIC_CFLAGS)"; \ - python util/setup.py --quiet build_ext --build-lib='$(OUTPUT)python' \ - --build-temp='$(OUTPUT)python/temp' \ - ) - + $(QUIET_GEN)CFLAGS='$(BASIC_CFLAGS)' $(PYTHON_WORD) util/setup.py \ + --quiet build_ext \ + --build-lib='$(OUTPUT)python' \ + --build-temp='$(OUTPUT)python/temp' # # No Perl scripts right now: # @@ -475,24 +485,74 @@ else endif endif -ifdef NO_LIBPYTHON - BASIC_CFLAGS += -DNO_LIBPYTHON +disable-python = $(eval $(disable-python_code)) +define disable-python_code + BASIC_CFLAGS += -DNO_LIBPYTHON + $(if $(1),$(warning No $(1) was found)) + $(warning Python support won't be built) +endef + +override PYTHON := \ + $(call get-executable-or-default,PYTHON,python) + +ifndef PYTHON + $(call disable-python,python interpreter) + python-clean := else - PYTHON_EMBED_LDOPTS = $(shell python-config --ldflags 2>/dev/null) - PYTHON_EMBED_LDFLAGS = $(call strip-libs,$(PYTHON_EMBED_LDOPTS)) - PYTHON_EMBED_LIBADD = $(call grep-libs,$(PYTHON_EMBED_LDOPTS)) - PYTHON_EMBED_CCOPTS = `python-config --cflags 2>/dev/null` - FLAGS_PYTHON_EMBED=$(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS) - ifneq ($(call try-cc,$(SOURCE_PYTHON_EMBED),$(FLAGS_PYTHON_EMBED)),y) - msg := $(warning No Python.h found, install python-dev[el] to have python support in 'perf script' and to build the python bindings) - BASIC_CFLAGS += -DNO_LIBPYTHON - else - ALL_LDFLAGS += $(PYTHON_EMBED_LDFLAGS) - EXTLIBS += $(PYTHON_EMBED_LIBADD) - LIB_OBJS += $(OUTPUT)util/scripting-engines/trace-event-python.o - LIB_OBJS += $(OUTPUT)scripts/python/Perf-Trace-Util/Context.o - LANG_BINDINGS += $(OUTPUT)python/perf.so - endif + + PYTHON_WORD := $(call shell-wordify,$(PYTHON)) + + python-clean := $(PYTHON_WORD) util/setup.py clean \ + --build-lib='$(OUTPUT)python' \ + --build-temp='$(OUTPUT)python/temp' + + ifdef NO_LIBPYTHON + $(call disable-python) + else + + override PYTHON_CONFIG := \ + $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON)-config) + + ifndef PYTHON_CONFIG + $(call disable-python,python-config tool) + else + + PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG)) + + PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) --ldflags 2>/dev/null) + PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS)) + PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS)) + PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --cflags 2>/dev/null) + FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS) + + ifneq ($(call try-cc,$(SOURCE_PYTHON_EMBED),$(FLAGS_PYTHON_EMBED)),y) + $(call disable-python,Python.h (for Python 2.x)) + else + + ifneq ($(call try-cc,$(SOURCE_PYTHON_VERSION),$(FLAGS_PYTHON_EMBED)),y) + $(warning Python 3 is not yet supported; please set) + $(warning PYTHON and/or PYTHON_CONFIG appropriately.) + $(warning If you also have Python 2 installed, then) + $(warning try something like:) + $(warning $(and ,)) + $(warning $(and ,) make PYTHON=python2) + $(warning $(and ,)) + $(warning Otherwise, disable Python support entirely:) + $(warning $(and ,)) + $(warning $(and ,) make NO_LIBPYTHON=1) + $(warning $(and ,)) + $(error $(and ,)) + else + ALL_LDFLAGS += $(PYTHON_EMBED_LDFLAGS) + EXTLIBS += $(PYTHON_EMBED_LIBADD) + LIB_OBJS += $(OUTPUT)util/scripting-engines/trace-event-python.o + LIB_OBJS += $(OUTPUT)scripts/python/Perf-Trace-Util/Context.o + LANG_BINDINGS += $(OUTPUT)python/perf.so + endif + + endif + endif + endif endif ifdef NO_DEMANGLE @@ -833,8 +893,7 @@ clean: $(RM) *.spec *.pyc *.pyo */*.pyc */*.pyo $(OUTPUT)common-cmds.h TAGS tags cscope* $(MAKE) -C Documentation/ clean $(RM) $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)PERF-CFLAGS - @python util/setup.py clean --build-lib='$(OUTPUT)python' \ - --build-temp='$(OUTPUT)python/temp' + $(python-clean) .PHONY: all install clean strip .PHONY: shell_compatibility_test please_set_SHELL_PATH_to_a_more_modern_shell diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 416538248a4..0974f957b8f 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -427,7 +427,7 @@ static void mmap_read_all(void) { int i; - for (i = 0; i < evsel_list->cpus->nr; i++) { + for (i = 0; i < evsel_list->nr_mmaps; i++) { if (evsel_list->mmap[i].base) mmap_read(&evsel_list->mmap[i]); } diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c index ac574ea2391..974f6d3f4e5 100644 --- a/tools/perf/builtin-script.c +++ b/tools/perf/builtin-script.c @@ -49,57 +49,169 @@ struct output_option { }; /* default set to maintain compatibility with current format */ -static u64 output_fields[PERF_TYPE_MAX] = { - [PERF_TYPE_HARDWARE] = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | \ - PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | \ - PERF_OUTPUT_EVNAME | PERF_OUTPUT_SYM, - - [PERF_TYPE_SOFTWARE] = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | \ - PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | \ - PERF_OUTPUT_EVNAME | PERF_OUTPUT_SYM, - - [PERF_TYPE_TRACEPOINT] = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | \ - PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | \ - PERF_OUTPUT_EVNAME | PERF_OUTPUT_TRACE, +static struct { + bool user_set; + bool wildcard_set; + u64 fields; + u64 invalid_fields; +} output[PERF_TYPE_MAX] = { + + [PERF_TYPE_HARDWARE] = { + .user_set = false, + + .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | + PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | + PERF_OUTPUT_EVNAME | PERF_OUTPUT_SYM, + + .invalid_fields = PERF_OUTPUT_TRACE, + }, + + [PERF_TYPE_SOFTWARE] = { + .user_set = false, + + .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | + PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | + PERF_OUTPUT_EVNAME | PERF_OUTPUT_SYM, + + .invalid_fields = PERF_OUTPUT_TRACE, + }, + + [PERF_TYPE_TRACEPOINT] = { + .user_set = false, + + .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | + PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | + PERF_OUTPUT_EVNAME | PERF_OUTPUT_TRACE, + }, + + [PERF_TYPE_RAW] = { + .user_set = false, + + .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | + PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | + PERF_OUTPUT_EVNAME | PERF_OUTPUT_SYM, + + .invalid_fields = PERF_OUTPUT_TRACE, + }, }; -static bool output_set_by_user; +static bool output_set_by_user(void) +{ + int j; + for (j = 0; j < PERF_TYPE_MAX; ++j) { + if (output[j].user_set) + return true; + } + return false; +} + +static const char *output_field2str(enum perf_output_field field) +{ + int i, imax = ARRAY_SIZE(all_output_options); + const char *str = ""; + + for (i = 0; i < imax; ++i) { + if (all_output_options[i].field == field) { + str = all_output_options[i].str; + break; + } + } + return str; +} -#define PRINT_FIELD(x) (output_fields[attr->type] & PERF_OUTPUT_##x) +#define PRINT_FIELD(x) (output[attr->type].fields & PERF_OUTPUT_##x) -static int perf_session__check_attr(struct perf_session *session, - struct perf_event_attr *attr) +static int perf_event_attr__check_stype(struct perf_event_attr *attr, + u64 sample_type, const char *sample_msg, + enum perf_output_field field) { + int type = attr->type; + const char *evname; + + if (attr->sample_type & sample_type) + return 0; + + if (output[type].user_set) { + evname = __event_name(attr->type, attr->config); + pr_err("Samples for '%s' event do not have %s attribute set. " + "Cannot print '%s' field.\n", + evname, sample_msg, output_field2str(field)); + return -1; + } + + /* user did not ask for it explicitly so remove from the default list */ + output[type].fields &= ~field; + evname = __event_name(attr->type, attr->config); + pr_debug("Samples for '%s' event do not have %s attribute set. " + "Skipping '%s' field.\n", + evname, sample_msg, output_field2str(field)); + + return 0; +} + +static int perf_evsel__check_attr(struct perf_evsel *evsel, + struct perf_session *session) +{ + struct perf_event_attr *attr = &evsel->attr; + if (PRINT_FIELD(TRACE) && !perf_session__has_traces(session, "record -R")) return -EINVAL; if (PRINT_FIELD(SYM)) { - if (!(session->sample_type & PERF_SAMPLE_IP)) { - pr_err("Samples do not contain IP data.\n"); + if (perf_event_attr__check_stype(attr, PERF_SAMPLE_IP, "IP", + PERF_OUTPUT_SYM)) return -EINVAL; - } + if (!no_callchain && - !(session->sample_type & PERF_SAMPLE_CALLCHAIN)) + !(attr->sample_type & PERF_SAMPLE_CALLCHAIN)) symbol_conf.use_callchain = false; } if ((PRINT_FIELD(PID) || PRINT_FIELD(TID)) && - !(session->sample_type & PERF_SAMPLE_TID)) { - pr_err("Samples do not contain TID/PID data.\n"); + perf_event_attr__check_stype(attr, PERF_SAMPLE_TID, "TID", + PERF_OUTPUT_TID|PERF_OUTPUT_PID)) return -EINVAL; - } if (PRINT_FIELD(TIME) && - !(session->sample_type & PERF_SAMPLE_TIME)) { - pr_err("Samples do not contain timestamps.\n"); + perf_event_attr__check_stype(attr, PERF_SAMPLE_TIME, "TIME", + PERF_OUTPUT_TIME)) return -EINVAL; - } if (PRINT_FIELD(CPU) && - !(session->sample_type & PERF_SAMPLE_CPU)) { - pr_err("Samples do not contain cpu.\n"); + perf_event_attr__check_stype(attr, PERF_SAMPLE_CPU, "CPU", + PERF_OUTPUT_CPU)) return -EINVAL; + + return 0; +} + +/* + * verify all user requested events exist and the samples + * have the expected data + */ +static int perf_session__check_output_opt(struct perf_session *session) +{ + int j; + struct perf_evsel *evsel; + + for (j = 0; j < PERF_TYPE_MAX; ++j) { + evsel = perf_session__find_first_evtype(session, j); + + /* + * even if fields is set to 0 (ie., show nothing) event must + * exist if user explicitly includes it on the command line + */ + if (!evsel && output[j].user_set && !output[j].wildcard_set) { + pr_err("%s events do not exist. " + "Remove corresponding -f option to proceed.\n", + event_type(j)); + return -1; + } + + if (evsel && output[j].fields && + perf_evsel__check_attr(evsel, session)) + return -1; } return 0; @@ -168,10 +280,7 @@ static void process_event(union perf_event *event __unused, { struct perf_event_attr *attr = &evsel->attr; - if (output_fields[attr->type] == 0) - return; - - if (perf_session__check_attr(session, attr) < 0) + if (output[attr->type].fields == 0) return; print_sample_start(sample, thread, attr); @@ -451,6 +560,7 @@ static int parse_output_fields(const struct option *opt __used, { char *tok; int i, imax = sizeof(all_output_options) / sizeof(struct output_option); + int j; int rc = 0; char *str = strdup(arg); int type = -1; @@ -458,52 +568,99 @@ static int parse_output_fields(const struct option *opt __used, if (!str) return -ENOMEM; - tok = strtok(str, ":"); - if (!tok) { - fprintf(stderr, - "Invalid field string - not prepended with type."); - return -EINVAL; - } - - /* first word should state which event type user - * is specifying the fields + /* first word can state for which event type the user is specifying + * the fields. If no type exists, the specified fields apply to all + * event types found in the file minus the invalid fields for a type. */ - if (!strcmp(tok, "hw")) - type = PERF_TYPE_HARDWARE; - else if (!strcmp(tok, "sw")) - type = PERF_TYPE_SOFTWARE; - else if (!strcmp(tok, "trace")) - type = PERF_TYPE_TRACEPOINT; - else { - fprintf(stderr, "Invalid event type in field string."); - return -EINVAL; + tok = strchr(str, ':'); + if (tok) { + *tok = '\0'; + tok++; + if (!strcmp(str, "hw")) + type = PERF_TYPE_HARDWARE; + else if (!strcmp(str, "sw")) + type = PERF_TYPE_SOFTWARE; + else if (!strcmp(str, "trace")) + type = PERF_TYPE_TRACEPOINT; + else if (!strcmp(str, "raw")) + type = PERF_TYPE_RAW; + else { + fprintf(stderr, "Invalid event type in field string.\n"); + return -EINVAL; + } + + if (output[type].user_set) + pr_warning("Overriding previous field request for %s events.\n", + event_type(type)); + + output[type].fields = 0; + output[type].user_set = true; + output[type].wildcard_set = false; + + } else { + tok = str; + if (strlen(str) == 0) { + fprintf(stderr, + "Cannot set fields to 'none' for all event types.\n"); + rc = -EINVAL; + goto out; + } + + if (output_set_by_user()) + pr_warning("Overriding previous field request for all events.\n"); + + for (j = 0; j < PERF_TYPE_MAX; ++j) { + output[j].fields = 0; + output[j].user_set = true; + output[j].wildcard_set = true; + } } - output_fields[type] = 0; - while (1) { - tok = strtok(NULL, ","); - if (!tok) - break; + tok = strtok(tok, ","); + while (tok) { for (i = 0; i < imax; ++i) { - if (strcmp(tok, all_output_options[i].str) == 0) { - output_fields[type] |= all_output_options[i].field; + if (strcmp(tok, all_output_options[i].str) == 0) break; - } } if (i == imax) { - fprintf(stderr, "Invalid field requested."); + fprintf(stderr, "Invalid field requested.\n"); rc = -EINVAL; - break; + goto out; } - } - if (output_fields[type] == 0) { - pr_debug("No fields requested for %s type. " - "Events will not be displayed\n", event_type(type)); + if (type == -1) { + /* add user option to all events types for + * which it is valid + */ + for (j = 0; j < PERF_TYPE_MAX; ++j) { + if (output[j].invalid_fields & all_output_options[i].field) { + pr_warning("\'%s\' not valid for %s events. Ignoring.\n", + all_output_options[i].str, event_type(j)); + } else + output[j].fields |= all_output_options[i].field; + } + } else { + if (output[type].invalid_fields & all_output_options[i].field) { + fprintf(stderr, "\'%s\' not valid for %s events.\n", + all_output_options[i].str, event_type(type)); + + rc = -EINVAL; + goto out; + } + output[type].fields |= all_output_options[i].field; + } + + tok = strtok(NULL, ","); } - output_set_by_user = true; + if (type >= 0) { + if (output[type].fields == 0) { + pr_debug("No fields requested for %s type. " + "Events will not be displayed.\n", event_type(type)); + } + } +out: free(str); return rc; } @@ -829,7 +986,7 @@ static const struct option options[] = { OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory", "Look for files with symbols relative to this directory"), OPT_CALLBACK('f', "fields", NULL, "str", - "comma separated output fields prepend with 'type:'. Valid types: hw,sw,trace. Fields: comm,tid,pid,time,cpu,event,trace,sym", + "comma separated output fields prepend with 'type:'. Valid types: hw,sw,trace,raw. Fields: comm,tid,pid,time,cpu,event,trace,sym", parse_output_fields), OPT_END() @@ -1020,7 +1177,7 @@ int cmd_script(int argc, const char **argv, const char *prefix __used) struct stat perf_stat; int input; - if (output_set_by_user) { + if (output_set_by_user()) { fprintf(stderr, "custom fields not supported for generated scripts"); return -1; @@ -1060,6 +1217,11 @@ int cmd_script(int argc, const char **argv, const char *prefix __used) pr_debug("perf script started with script %s\n\n", script_name); } + + err = perf_session__check_output_opt(session); + if (err < 0) + goto out; + err = __cmd_script(session); perf_session__delete(session); diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index 03f0e45f147..a9f06715e44 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -6,24 +6,28 @@ * * Sample output: - $ perf stat ~/hackbench 10 - Time: 0.104 + $ perf stat ./hackbench 10 - Performance counter stats for '/home/mingo/hackbench': + Time: 0.118 - 1255.538611 task clock ticks # 10.143 CPU utilization factor - 54011 context switches # 0.043 M/sec - 385 CPU migrations # 0.000 M/sec - 17755 pagefaults # 0.014 M/sec - 3808323185 CPU cycles # 3033.219 M/sec - 1575111190 instructions # 1254.530 M/sec - 17367895 cache references # 13.833 M/sec - 7674421 cache misses # 6.112 M/sec + Performance counter stats for './hackbench 10': - Wall-clock time elapsed: 123.786620 msecs + 1708.761321 task-clock # 11.037 CPUs utilized + 41,190 context-switches # 0.024 M/sec + 6,735 CPU-migrations # 0.004 M/sec + 17,318 page-faults # 0.010 M/sec + 5,205,202,243 cycles # 3.046 GHz + 3,856,436,920 stalled-cycles-frontend # 74.09% frontend cycles idle + 1,600,790,871 stalled-cycles-backend # 30.75% backend cycles idle + 2,603,501,247 instructions # 0.50 insns per cycle + # 1.48 stalled cycles per insn + 484,357,498 branches # 283.455 M/sec + 6,388,934 branch-misses # 1.32% of all branches + + 0.154822978 seconds time elapsed * - * Copyright (C) 2008, Red Hat Inc, Ingo Molnar <mingo@redhat.com> + * Copyright (C) 2008-2011, Red Hat Inc, Ingo Molnar <mingo@redhat.com> * * Improvements and fixes by: * @@ -46,6 +50,7 @@ #include "util/evlist.h" #include "util/evsel.h" #include "util/debug.h" +#include "util/color.h" #include "util/header.h" #include "util/cpumap.h" #include "util/thread.h" @@ -65,14 +70,107 @@ static struct perf_event_attr default_attrs[] = { { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_PAGE_FAULTS }, { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_CPU_CYCLES }, + { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES_FRONTEND }, + { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_STALLED_CYCLES_BACKEND }, { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_INSTRUCTIONS }, { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_INSTRUCTIONS }, { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_BRANCH_MISSES }, - { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_CACHE_REFERENCES }, - { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_CACHE_MISSES }, }; +/* + * Detailed stats (-d), covering the L1 and last level data caches: + */ +static struct perf_event_attr detailed_attrs[] = { + + { .type = PERF_TYPE_HW_CACHE, + .config = + PERF_COUNT_HW_CACHE_L1D << 0 | + (PERF_COUNT_HW_CACHE_OP_READ << 8) | + (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, + + { .type = PERF_TYPE_HW_CACHE, + .config = + PERF_COUNT_HW_CACHE_L1D << 0 | + (PERF_COUNT_HW_CACHE_OP_READ << 8) | + (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, + + { .type = PERF_TYPE_HW_CACHE, + .config = + PERF_COUNT_HW_CACHE_LL << 0 | + (PERF_COUNT_HW_CACHE_OP_READ << 8) | + (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, + + { .type = PERF_TYPE_HW_CACHE, + .config = + PERF_COUNT_HW_CACHE_LL << 0 | + (PERF_COUNT_HW_CACHE_OP_READ << 8) | + (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, +}; + +/* + * Very detailed stats (-d -d), covering the instruction cache and the TLB caches: + */ +static struct perf_event_attr very_detailed_attrs[] = { + + { .type = PERF_TYPE_HW_CACHE, + .config = + PERF_COUNT_HW_CACHE_L1I << 0 | + (PERF_COUNT_HW_CACHE_OP_READ << 8) | + (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, + + { .type = PERF_TYPE_HW_CACHE, + .config = + PERF_COUNT_HW_CACHE_L1I << 0 | + (PERF_COUNT_HW_CACHE_OP_READ << 8) | + (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, + + { .type = PERF_TYPE_HW_CACHE, + .config = + PERF_COUNT_HW_CACHE_DTLB << 0 | + (PERF_COUNT_HW_CACHE_OP_READ << 8) | + (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, + + { .type = PERF_TYPE_HW_CACHE, + .config = + PERF_COUNT_HW_CACHE_DTLB << 0 | + (PERF_COUNT_HW_CACHE_OP_READ << 8) | + (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, + + { .type = PERF_TYPE_HW_CACHE, + .config = + PERF_COUNT_HW_CACHE_ITLB << 0 | + (PERF_COUNT_HW_CACHE_OP_READ << 8) | + (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, + + { .type = PERF_TYPE_HW_CACHE, + .config = + PERF_COUNT_HW_CACHE_ITLB << 0 | + (PERF_COUNT_HW_CACHE_OP_READ << 8) | + (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, + +}; + +/* + * Very, very detailed stats (-d -d -d), adding prefetch events: + */ +static struct perf_event_attr very_very_detailed_attrs[] = { + + { .type = PERF_TYPE_HW_CACHE, + .config = + PERF_COUNT_HW_CACHE_L1D << 0 | + (PERF_COUNT_HW_CACHE_OP_PREFETCH << 8) | + (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16) }, + + { .type = PERF_TYPE_HW_CACHE, + .config = + PERF_COUNT_HW_CACHE_L1D << 0 | + (PERF_COUNT_HW_CACHE_OP_PREFETCH << 8) | + (PERF_COUNT_HW_CACHE_RESULT_MISS << 16) }, +}; + + + struct perf_evlist *evsel_list; static bool system_wide = false; @@ -86,6 +184,8 @@ static pid_t target_pid = -1; static pid_t target_tid = -1; static pid_t child_pid = -1; static bool null_run = false; +static int detailed_run = 0; +static bool sync_run = false; static bool big_num = true; static int big_num_opt = -1; static const char *cpu_list; @@ -156,7 +256,15 @@ static double stddev_stats(struct stats *stats) struct stats runtime_nsecs_stats[MAX_NR_CPUS]; struct stats runtime_cycles_stats[MAX_NR_CPUS]; +struct stats runtime_stalled_cycles_front_stats[MAX_NR_CPUS]; +struct stats runtime_stalled_cycles_back_stats[MAX_NR_CPUS]; struct stats runtime_branches_stats[MAX_NR_CPUS]; +struct stats runtime_cacherefs_stats[MAX_NR_CPUS]; +struct stats runtime_l1_dcache_stats[MAX_NR_CPUS]; +struct stats runtime_l1_icache_stats[MAX_NR_CPUS]; +struct stats runtime_ll_cache_stats[MAX_NR_CPUS]; +struct stats runtime_itlb_cache_stats[MAX_NR_CPUS]; +struct stats runtime_dtlb_cache_stats[MAX_NR_CPUS]; struct stats walltime_nsecs_stats; static int create_perf_stat_counter(struct perf_evsel *evsel) @@ -193,6 +301,37 @@ static inline int nsec_counter(struct perf_evsel *evsel) } /* + * Update various tracking values we maintain to print + * more semantic information such as miss/hit ratios, + * instruction rates, etc: + */ +static void update_shadow_stats(struct perf_evsel *counter, u64 *count) +{ + if (perf_evsel__match(counter, SOFTWARE, SW_TASK_CLOCK)) + update_stats(&runtime_nsecs_stats[0], count[0]); + else if (perf_evsel__match(counter, HARDWARE, HW_CPU_CYCLES)) + update_stats(&runtime_cycles_stats[0], count[0]); + else if (perf_evsel__match(counter, HARDWARE, HW_STALLED_CYCLES_FRONTEND)) + update_stats(&runtime_stalled_cycles_front_stats[0], count[0]); + else if (perf_evsel__match(counter, HARDWARE, HW_STALLED_CYCLES_BACKEND)) + update_stats(&runtime_stalled_cycles_back_stats[0], count[0]); + else if (perf_evsel__match(counter, HARDWARE, HW_BRANCH_INSTRUCTIONS)) + update_stats(&runtime_branches_stats[0], count[0]); + else if (perf_evsel__match(counter, HARDWARE, HW_CACHE_REFERENCES)) + update_stats(&runtime_cacherefs_stats[0], count[0]); + else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_L1D)) + update_stats(&runtime_l1_dcache_stats[0], count[0]); + else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_L1I)) + update_stats(&runtime_l1_icache_stats[0], count[0]); + else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_LL)) + update_stats(&runtime_ll_cache_stats[0], count[0]); + else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_DTLB)) + update_stats(&runtime_dtlb_cache_stats[0], count[0]); + else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_ITLB)) + update_stats(&runtime_itlb_cache_stats[0], count[0]); +} + +/* * Read out the results of a single counter: * aggregate counts across CPUs in system-wide mode */ @@ -217,12 +356,7 @@ static int read_counter_aggr(struct perf_evsel *counter) /* * Save the full runtime - to allow normalization during printout: */ - if (perf_evsel__match(counter, SOFTWARE, SW_TASK_CLOCK)) - update_stats(&runtime_nsecs_stats[0], count[0]); - if (perf_evsel__match(counter, HARDWARE, HW_CPU_CYCLES)) - update_stats(&runtime_cycles_stats[0], count[0]); - if (perf_evsel__match(counter, HARDWARE, HW_BRANCH_INSTRUCTIONS)) - update_stats(&runtime_branches_stats[0], count[0]); + update_shadow_stats(counter, count); return 0; } @@ -242,12 +376,7 @@ static int read_counter(struct perf_evsel *counter) count = counter->counts->cpu[cpu].values; - if (perf_evsel__match(counter, SOFTWARE, SW_TASK_CLOCK)) - update_stats(&runtime_nsecs_stats[cpu], count[0]); - if (perf_evsel__match(counter, HARDWARE, HW_CPU_CYCLES)) - update_stats(&runtime_cycles_stats[cpu], count[0]); - if (perf_evsel__match(counter, HARDWARE, HW_BRANCH_INSTRUCTIONS)) - update_stats(&runtime_branches_stats[cpu], count[0]); + update_shadow_stats(counter, count); } return 0; @@ -315,13 +444,18 @@ static int run_perf_stat(int argc __used, const char **argv) list_for_each_entry(counter, &evsel_list->entries, node) { if (create_perf_stat_counter(counter) < 0) { - if (errno == -EPERM || errno == -EACCES) { + if (errno == EINVAL || errno == ENOSYS || errno == ENOENT) { + if (verbose) + ui__warning("%s event is not supported by the kernel.\n", + event_name(counter)); + continue; + } + + if (errno == EPERM || errno == EACCES) { error("You may not have permission to collect %sstats.\n" "\t Consider tweaking" " /proc/sys/kernel/perf_event_paranoid or running as root.", system_wide ? "system-wide " : ""); - } else if (errno == ENOENT) { - error("%s event is not supported. ", event_name(counter)); } else { error("open_counter returned with %d (%s). " "/bin/dmesg may provide additional information.\n", @@ -372,6 +506,16 @@ static int run_perf_stat(int argc __used, const char **argv) return WEXITSTATUS(status); } +static void print_noise_pct(double total, double avg) +{ + double pct = 0.0; + + if (avg) + pct = 100.0*total/avg; + + fprintf(stderr, " ( +-%6.2f%% )", pct); +} + static void print_noise(struct perf_evsel *evsel, double avg) { struct perf_stat *ps; @@ -380,15 +524,14 @@ static void print_noise(struct perf_evsel *evsel, double avg) return; ps = evsel->priv; - fprintf(stderr, " ( +- %7.3f%% )", - 100 * stddev_stats(&ps->res_stats[0]) / avg); + print_noise_pct(stddev_stats(&ps->res_stats[0]), avg); } static void nsec_printout(int cpu, struct perf_evsel *evsel, double avg) { double msecs = avg / 1e6; char cpustr[16] = { '\0', }; - const char *fmt = csv_output ? "%s%.6f%s%s" : "%s%18.6f%s%-24s"; + const char *fmt = csv_output ? "%s%.6f%s%s" : "%s%18.6f%s%-25s"; if (no_aggr) sprintf(cpustr, "CPU%*d%s", @@ -404,8 +547,191 @@ static void nsec_printout(int cpu, struct perf_evsel *evsel, double avg) return; if (perf_evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK)) - fprintf(stderr, " # %10.3f CPUs ", - avg / avg_stats(&walltime_nsecs_stats)); + fprintf(stderr, " # %8.3f CPUs utilized ", avg / avg_stats(&walltime_nsecs_stats)); +} + +static void print_stalled_cycles_frontend(int cpu, struct perf_evsel *evsel __used, double avg) +{ + double total, ratio = 0.0; + const char *color; + + total = avg_stats(&runtime_cycles_stats[cpu]); + + if (total) + ratio = avg / total * 100.0; + + color = PERF_COLOR_NORMAL; + if (ratio > 50.0) + color = PERF_COLOR_RED; + else if (ratio > 30.0) + color = PERF_COLOR_MAGENTA; + else if (ratio > 10.0) + color = PERF_COLOR_YELLOW; + + fprintf(stderr, " # "); + color_fprintf(stderr, color, "%6.2f%%", ratio); + fprintf(stderr, " frontend cycles idle "); +} + +static void print_stalled_cycles_backend(int cpu, struct perf_evsel *evsel __used, double avg) +{ + double total, ratio = 0.0; + const char *color; + + total = avg_stats(&runtime_cycles_stats[cpu]); + + if (total) + ratio = avg / total * 100.0; + + color = PERF_COLOR_NORMAL; + if (ratio > 75.0) + color = PERF_COLOR_RED; + else if (ratio > 50.0) + color = PERF_COLOR_MAGENTA; + else if (ratio > 20.0) + color = PERF_COLOR_YELLOW; + + fprintf(stderr, " # "); + color_fprintf(stderr, color, "%6.2f%%", ratio); + fprintf(stderr, " backend cycles idle "); +} + +static void print_branch_misses(int cpu, struct perf_evsel *evsel __used, double avg) +{ + double total, ratio = 0.0; + const char *color; + + total = avg_stats(&runtime_branches_stats[cpu]); + + if (total) + ratio = avg / total * 100.0; + + color = PERF_COLOR_NORMAL; + if (ratio > 20.0) + color = PERF_COLOR_RED; + else if (ratio > 10.0) + color = PERF_COLOR_MAGENTA; + else if (ratio > 5.0) + color = PERF_COLOR_YELLOW; + + fprintf(stderr, " # "); + color_fprintf(stderr, color, "%6.2f%%", ratio); + fprintf(stderr, " of all branches "); +} + +static void print_l1_dcache_misses(int cpu, struct perf_evsel *evsel __used, double avg) +{ + double total, ratio = 0.0; + const char *color; + + total = avg_stats(&runtime_l1_dcache_stats[cpu]); + + if (total) + ratio = avg / total * 100.0; + + color = PERF_COLOR_NORMAL; + if (ratio > 20.0) + color = PERF_COLOR_RED; + else if (ratio > 10.0) + color = PERF_COLOR_MAGENTA; + else if (ratio > 5.0) + color = PERF_COLOR_YELLOW; + + fprintf(stderr, " # "); + color_fprintf(stderr, color, "%6.2f%%", ratio); + fprintf(stderr, " of all L1-dcache hits "); +} + +static void print_l1_icache_misses(int cpu, struct perf_evsel *evsel __used, double avg) +{ + double total, ratio = 0.0; + const char *color; + + total = avg_stats(&runtime_l1_icache_stats[cpu]); + + if (total) + ratio = avg / total * 100.0; + + color = PERF_COLOR_NORMAL; + if (ratio > 20.0) + color = PERF_COLOR_RED; + else if (ratio > 10.0) + color = PERF_COLOR_MAGENTA; + else if (ratio > 5.0) + color = PERF_COLOR_YELLOW; + + fprintf(stderr, " # "); + color_fprintf(stderr, color, "%6.2f%%", ratio); + fprintf(stderr, " of all L1-icache hits "); +} + +static void print_dtlb_cache_misses(int cpu, struct perf_evsel *evsel __used, double avg) +{ + double total, ratio = 0.0; + const char *color; + + total = avg_stats(&runtime_dtlb_cache_stats[cpu]); + + if (total) + ratio = avg / total * 100.0; + + color = PERF_COLOR_NORMAL; + if (ratio > 20.0) + color = PERF_COLOR_RED; + else if (ratio > 10.0) + color = PERF_COLOR_MAGENTA; + else if (ratio > 5.0) + color = PERF_COLOR_YELLOW; + + fprintf(stderr, " # "); + color_fprintf(stderr, color, "%6.2f%%", ratio); + fprintf(stderr, " of all dTLB cache hits "); +} + +static void print_itlb_cache_misses(int cpu, struct perf_evsel *evsel __used, double avg) +{ + double total, ratio = 0.0; + const char *color; + + total = avg_stats(&runtime_itlb_cache_stats[cpu]); + + if (total) + ratio = avg / total * 100.0; + + color = PERF_COLOR_NORMAL; + if (ratio > 20.0) + color = PERF_COLOR_RED; + else if (ratio > 10.0) + color = PERF_COLOR_MAGENTA; + else if (ratio > 5.0) + color = PERF_COLOR_YELLOW; + + fprintf(stderr, " # "); + color_fprintf(stderr, color, "%6.2f%%", ratio); + fprintf(stderr, " of all iTLB cache hits "); +} + +static void print_ll_cache_misses(int cpu, struct perf_evsel *evsel __used, double avg) +{ + double total, ratio = 0.0; + const char *color; + + total = avg_stats(&runtime_ll_cache_stats[cpu]); + + if (total) + ratio = avg / total * 100.0; + + color = PERF_COLOR_NORMAL; + if (ratio > 20.0) + color = PERF_COLOR_RED; + else if (ratio > 10.0) + color = PERF_COLOR_MAGENTA; + else if (ratio > 5.0) + color = PERF_COLOR_YELLOW; + + fprintf(stderr, " # "); + color_fprintf(stderr, color, "%6.2f%%", ratio); + fprintf(stderr, " of all LL-cache hits "); } static void abs_printout(int cpu, struct perf_evsel *evsel, double avg) @@ -417,9 +743,9 @@ static void abs_printout(int cpu, struct perf_evsel *evsel, double avg) if (csv_output) fmt = "%s%.0f%s%s"; else if (big_num) - fmt = "%s%'18.0f%s%-24s"; + fmt = "%s%'18.0f%s%-25s"; else - fmt = "%s%18.0f%s%-24s"; + fmt = "%s%18.0f%s%-25s"; if (no_aggr) sprintf(cpustr, "CPU%*d%s", @@ -442,23 +768,83 @@ static void abs_printout(int cpu, struct perf_evsel *evsel, double avg) if (total) ratio = avg / total; - fprintf(stderr, " # %10.3f IPC ", ratio); + fprintf(stderr, " # %5.2f insns per cycle ", ratio); + + total = avg_stats(&runtime_stalled_cycles_front_stats[cpu]); + total = max(total, avg_stats(&runtime_stalled_cycles_back_stats[cpu])); + + if (total && avg) { + ratio = total / avg; + fprintf(stderr, "\n # %5.2f stalled cycles per insn", ratio); + } + } else if (perf_evsel__match(evsel, HARDWARE, HW_BRANCH_MISSES) && runtime_branches_stats[cpu].n != 0) { - total = avg_stats(&runtime_branches_stats[cpu]); + print_branch_misses(cpu, evsel, avg); + } else if ( + evsel->attr.type == PERF_TYPE_HW_CACHE && + evsel->attr.config == ( PERF_COUNT_HW_CACHE_L1D | + ((PERF_COUNT_HW_CACHE_OP_READ) << 8) | + ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16)) && + runtime_l1_dcache_stats[cpu].n != 0) { + print_l1_dcache_misses(cpu, evsel, avg); + } else if ( + evsel->attr.type == PERF_TYPE_HW_CACHE && + evsel->attr.config == ( PERF_COUNT_HW_CACHE_L1I | + ((PERF_COUNT_HW_CACHE_OP_READ) << 8) | + ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16)) && + runtime_l1_icache_stats[cpu].n != 0) { + print_l1_icache_misses(cpu, evsel, avg); + } else if ( + evsel->attr.type == PERF_TYPE_HW_CACHE && + evsel->attr.config == ( PERF_COUNT_HW_CACHE_DTLB | + ((PERF_COUNT_HW_CACHE_OP_READ) << 8) | + ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16)) && + runtime_dtlb_cache_stats[cpu].n != 0) { + print_dtlb_cache_misses(cpu, evsel, avg); + } else if ( + evsel->attr.type == PERF_TYPE_HW_CACHE && + evsel->attr.config == ( PERF_COUNT_HW_CACHE_ITLB | + ((PERF_COUNT_HW_CACHE_OP_READ) << 8) | + ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16)) && + runtime_itlb_cache_stats[cpu].n != 0) { + print_itlb_cache_misses(cpu, evsel, avg); + } else if ( + evsel->attr.type == PERF_TYPE_HW_CACHE && + evsel->attr.config == ( PERF_COUNT_HW_CACHE_LL | + ((PERF_COUNT_HW_CACHE_OP_READ) << 8) | + ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16)) && + runtime_ll_cache_stats[cpu].n != 0) { + print_ll_cache_misses(cpu, evsel, avg); + } else if (perf_evsel__match(evsel, HARDWARE, HW_CACHE_MISSES) && + runtime_cacherefs_stats[cpu].n != 0) { + total = avg_stats(&runtime_cacherefs_stats[cpu]); if (total) ratio = avg * 100 / total; - fprintf(stderr, " # %10.3f %% ", ratio); + fprintf(stderr, " # %8.3f %% of all cache refs ", ratio); + + } else if (perf_evsel__match(evsel, HARDWARE, HW_STALLED_CYCLES_FRONTEND)) { + print_stalled_cycles_frontend(cpu, evsel, avg); + } else if (perf_evsel__match(evsel, HARDWARE, HW_STALLED_CYCLES_BACKEND)) { + print_stalled_cycles_backend(cpu, evsel, avg); + } else if (perf_evsel__match(evsel, HARDWARE, HW_CPU_CYCLES)) { + total = avg_stats(&runtime_nsecs_stats[cpu]); + if (total) + ratio = 1.0 * avg / total; + + fprintf(stderr, " # %8.3f GHz ", ratio); } else if (runtime_nsecs_stats[cpu].n != 0) { total = avg_stats(&runtime_nsecs_stats[cpu]); if (total) ratio = 1000.0 * avg / total; - fprintf(stderr, " # %10.3f M/sec", ratio); + fprintf(stderr, " # %8.3f M/sec ", ratio); + } else { + fprintf(stderr, " "); } } @@ -505,8 +891,7 @@ static void print_counter_aggr(struct perf_evsel *counter) avg_enabled = avg_stats(&ps->res_stats[1]); avg_running = avg_stats(&ps->res_stats[2]); - fprintf(stderr, " (scaled from %.2f%%)", - 100 * avg_running / avg_enabled); + fprintf(stderr, " [%5.2f%%]", 100 * avg_running / avg_enabled); } fprintf(stderr, "\n"); } @@ -548,10 +933,8 @@ static void print_counter(struct perf_evsel *counter) if (!csv_output) { print_noise(counter, 1.0); - if (run != ena) { - fprintf(stderr, " (scaled from %.2f%%)", - 100.0 * run / ena); - } + if (run != ena) + fprintf(stderr, " (%.2f%%)", 100.0 * run / ena); } fputc('\n', stderr); } @@ -591,13 +974,14 @@ static void print_stat(int argc, const char **argv) } if (!csv_output) { - fprintf(stderr, "\n"); - fprintf(stderr, " %18.9f seconds time elapsed", + if (!null_run) + fprintf(stderr, "\n"); + fprintf(stderr, " %17.9f seconds time elapsed", avg_stats(&walltime_nsecs_stats)/1e9); if (run_count > 1) { - fprintf(stderr, " ( +- %7.3f%% )", - 100*stddev_stats(&walltime_nsecs_stats) / - avg_stats(&walltime_nsecs_stats)); + fprintf(stderr, " "); + print_noise_pct(stddev_stats(&walltime_nsecs_stats), + avg_stats(&walltime_nsecs_stats)); } fprintf(stderr, "\n\n"); } @@ -659,6 +1043,10 @@ static const struct option options[] = { "repeat command and print average + stddev (max: 100)"), OPT_BOOLEAN('n', "null", &null_run, "null run - dont start any counters"), + OPT_INCR('d', "detailed", &detailed_run, + "detailed run - start a lot of events"), + OPT_BOOLEAN('S', "sync", &sync_run, + "call sync() before starting a run"), OPT_CALLBACK_NOOPT('B', "big-num", NULL, NULL, "print large numbers with thousands\' separators", stat__set_big_num), @@ -674,6 +1062,70 @@ static const struct option options[] = { OPT_END() }; +/* + * Add default attributes, if there were no attributes specified or + * if -d/--detailed, -d -d or -d -d -d is used: + */ +static int add_default_attributes(void) +{ + struct perf_evsel *pos; + size_t attr_nr = 0; + size_t c; + + /* Set attrs if no event is selected and !null_run: */ + if (null_run) + return 0; + + if (!evsel_list->nr_entries) { + for (c = 0; c < ARRAY_SIZE(default_attrs); c++) { + pos = perf_evsel__new(default_attrs + c, c + attr_nr); + if (pos == NULL) + return -1; + perf_evlist__add(evsel_list, pos); + } + attr_nr += c; + } + + /* Detailed events get appended to the event list: */ + + if (detailed_run < 1) + return 0; + + /* Append detailed run extra attributes: */ + for (c = 0; c < ARRAY_SIZE(detailed_attrs); c++) { + pos = perf_evsel__new(detailed_attrs + c, c + attr_nr); + if (pos == NULL) + return -1; + perf_evlist__add(evsel_list, pos); + } + attr_nr += c; + + if (detailed_run < 2) + return 0; + + /* Append very detailed run extra attributes: */ + for (c = 0; c < ARRAY_SIZE(very_detailed_attrs); c++) { + pos = perf_evsel__new(very_detailed_attrs + c, c + attr_nr); + if (pos == NULL) + return -1; + perf_evlist__add(evsel_list, pos); + } + + if (detailed_run < 3) + return 0; + + /* Append very, very detailed run extra attributes: */ + for (c = 0; c < ARRAY_SIZE(very_very_detailed_attrs); c++) { + pos = perf_evsel__new(very_very_detailed_attrs + c, c + attr_nr); + if (pos == NULL) + return -1; + perf_evlist__add(evsel_list, pos); + } + + + return 0; +} + int cmd_stat(int argc, const char **argv, const char *prefix __used) { struct perf_evsel *pos; @@ -719,17 +1171,8 @@ int cmd_stat(int argc, const char **argv, const char *prefix __used) usage_with_options(stat_usage, options); } - /* Set attrs and nr_counters if no event is selected and !null_run */ - if (!null_run && !evsel_list->nr_entries) { - size_t c; - - for (c = 0; c < ARRAY_SIZE(default_attrs); ++c) { - pos = perf_evsel__new(&default_attrs[c], c); - if (pos == NULL) - goto out; - perf_evlist__add(evsel_list, pos); - } - } + if (add_default_attributes()) + goto out; if (target_pid != -1) target_tid = target_pid; @@ -773,6 +1216,10 @@ int cmd_stat(int argc, const char **argv, const char *prefix __used) for (run_idx = 0; run_idx < run_count; run_idx++) { if (run_count != 1 && verbose) fprintf(stderr, "[ perf stat: executing run #%d ... ]\n", run_idx + 1); + + if (sync_run) + sync(); + status = run_perf_stat(argc, argv); } diff --git a/tools/perf/builtin-test.c b/tools/perf/builtin-test.c index 11e3c845836..2f9a337b182 100644 --- a/tools/perf/builtin-test.c +++ b/tools/perf/builtin-test.c @@ -549,7 +549,7 @@ static int test__basic_mmap(void) ++foo; } - while ((event = perf_evlist__read_on_cpu(evlist, 0)) != NULL) { + while ((event = perf_evlist__mmap_read(evlist, 0)) != NULL) { struct perf_sample sample; if (event->header.type != PERF_RECORD_SAMPLE) { diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index 7e3d6e310bf..ebfc7cf5f63 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -801,12 +801,12 @@ static void perf_event__process_sample(const union perf_event *event, } } -static void perf_session__mmap_read_cpu(struct perf_session *self, int cpu) +static void perf_session__mmap_read_idx(struct perf_session *self, int idx) { struct perf_sample sample; union perf_event *event; - while ((event = perf_evlist__read_on_cpu(top.evlist, cpu)) != NULL) { + while ((event = perf_evlist__mmap_read(top.evlist, idx)) != NULL) { perf_session__parse_sample(self, event, &sample); if (event->header.type == PERF_RECORD_SAMPLE) @@ -820,8 +820,8 @@ static void perf_session__mmap_read(struct perf_session *self) { int i; - for (i = 0; i < top.evlist->cpus->nr; i++) - perf_session__mmap_read_cpu(self, i); + for (i = 0; i < top.evlist->nr_mmaps; i++) + perf_session__mmap_read_idx(self, i); } static void start_counters(struct perf_evlist *evlist) diff --git a/tools/perf/feature-tests.mak b/tools/perf/config/feature-tests.mak index b041ca67a2c..6170fd2531b 100644 --- a/tools/perf/feature-tests.mak +++ b/tools/perf/config/feature-tests.mak @@ -79,9 +79,15 @@ endef endif ifndef NO_LIBPYTHON +define SOURCE_PYTHON_VERSION +#include <Python.h> +#if PY_VERSION_HEX >= 0x03000000 + #error +#endif +int main(void){} +endef define SOURCE_PYTHON_EMBED #include <Python.h> - int main(void) { Py_Initialize(); @@ -120,11 +126,3 @@ int main(void) return 0; } endef - -# try-cc -# Usage: option = $(call try-cc, source-to-build, cc-options) -try-cc = $(shell sh -c \ - 'TMP="$(OUTPUT)$(TMPOUT).$$$$"; \ - echo "$(1)" | \ - $(CC) -x c - $(2) -o "$$TMP" > /dev/null 2>&1 && echo y; \ - rm -f "$$TMP"') diff --git a/tools/perf/config/utilities.mak b/tools/perf/config/utilities.mak new file mode 100644 index 00000000000..8046182a19e --- /dev/null +++ b/tools/perf/config/utilities.mak @@ -0,0 +1,188 @@ +# This allows us to work with the newline character: +define newline + + +endef +newline := $(newline) + +# nl-escape +# +# Usage: escape = $(call nl-escape[,escape]) +# +# This is used as the common way to specify +# what should replace a newline when escaping +# newlines; the default is a bizarre string. +# +nl-escape = $(or $(1),m822df3020w6a44id34bt574ctac44eb9f4n) + +# escape-nl +# +# Usage: escaped-text = $(call escape-nl,text[,escape]) +# +# GNU make's $(shell ...) function converts to a +# single space each newline character in the output +# produced during the expansion; this may not be +# desirable. +# +# The only solution is to change each newline into +# something that won't be converted, so that the +# information can be recovered later with +# $(call unescape-nl...) +# +escape-nl = $(subst $(newline),$(call nl-escape,$(2)),$(1)) + +# unescape-nl +# +# Usage: text = $(call unescape-nl,escaped-text[,escape]) +# +# See escape-nl. +# +unescape-nl = $(subst $(call nl-escape,$(2)),$(newline),$(1)) + +# shell-escape-nl +# +# Usage: $(shell some-command | $(call shell-escape-nl[,escape])) +# +# Use this to escape newlines from within a shell call; +# the default escape is a bizarre string. +# +# NOTE: The escape is used directly as a string constant +# in an `awk' program that is delimited by shell +# single-quotes, so be wary of the characters +# that are chosen. +# +define shell-escape-nl +awk 'NR==1 {t=$$0} NR>1 {t=t "$(nl-escape)" $$0} END {printf t}' +endef + +# shell-unescape-nl +# +# Usage: $(shell some-command | $(call shell-unescape-nl[,escape])) +# +# Use this to unescape newlines from within a shell call; +# the default escape is a bizarre string. +# +# NOTE: The escape is used directly as an extended regular +# expression constant in an `awk' program that is +# delimited by shell single-quotes, so be wary +# of the characters that are chosen. +# +# (The bash shell has a bug where `{gsub(...),...}' is +# misinterpreted as a brace expansion; this can be +# overcome by putting a space between `{' and `gsub'). +# +define shell-unescape-nl +awk 'NR==1 {t=$$0} NR>1 {t=t "\n" $$0} END { gsub(/$(nl-escape)/,"\n",t); printf t }' +endef + +# escape-for-shell-sq +# +# Usage: embeddable-text = $(call escape-for-shell-sq,text) +# +# This function produces text that is suitable for +# embedding in a shell string that is delimited by +# single-quotes. +# +escape-for-shell-sq = $(subst ','\'',$(1)) + +# shell-sq +# +# Usage: single-quoted-and-escaped-text = $(call shell-sq,text) +# +shell-sq = '$(escape-for-shell-sq)' + +# shell-wordify +# +# Usage: wordified-text = $(call shell-wordify,text) +# +# For instance: +# +# |define text +# |hello +# |world +# |endef +# | +# |target: +# | echo $(call shell-wordify,$(text)) +# +# At least GNU make gets confused by expanding a newline +# within the context of a command line of a makefile rule +# (this is in constrast to a `$(shell ...)' function call, +# which can handle it just fine). +# +# This function avoids the problem by producing a string +# that works as a shell word, regardless of whether or +# not it contains a newline. +# +# If the text to be wordified contains a newline, then +# an intrictate shell command substitution is constructed +# to render the text as a single line; when the shell +# processes the resulting escaped text, it transforms +# it into the original unescaped text. +# +# If the text does not contain a newline, then this function +# produces the same results as the `$(shell-sq)' function. +# +shell-wordify = $(if $(findstring $(newline),$(1)),$(_sw-esc-nl),$(shell-sq)) +define _sw-esc-nl +"$$(echo $(call escape-nl,$(shell-sq),$(2)) | $(call shell-unescape-nl,$(2)))" +endef + +# is-absolute +# +# Usage: bool-value = $(call is-absolute,path) +# +is-absolute = $(shell echo $(shell-sq) | grep ^/ -q && echo y) + +# lookup +# +# Usage: absolute-executable-path-or-empty = $(call lookup,path) +# +# (It's necessary to use `sh -c' because GNU make messes up by +# trying too hard and getting things wrong). +# +lookup = $(call unescape-nl,$(shell sh -c $(_l-sh))) +_l-sh = $(call shell-sq,command -v $(shell-sq) | $(call shell-escape-nl,)) + +# is-executable +# +# Usage: bool-value = $(call is-executable,path) +# +# (It's necessary to use `sh -c' because GNU make messes up by +# trying too hard and getting things wrong). +# +is-executable = $(call _is-executable-helper,$(shell-sq)) +_is-executable-helper = $(shell sh -c $(_is-executable-sh)) +_is-executable-sh = $(call shell-sq,test -f $(1) -a -x $(1) && echo y) + +# get-executable +# +# Usage: absolute-executable-path-or-empty = $(call get-executable,path) +# +# The goal is to get an absolute path for an executable; +# the `command -v' is defined by POSIX, but it's not +# necessarily very portable, so it's only used if +# relative path resolution is requested, as determined +# by the presence of a leading `/'. +# +get-executable = $(if $(1),$(if $(is-absolute),$(_ge-abspath),$(lookup))) +_ge-abspath = $(if $(is-executable),$(1)) + +# get-supplied-or-default-executable +# +# Usage: absolute-executable-path-or-empty = $(call get-executable-or-default,variable,default) +# +define get-executable-or-default +$(if $($(1)),$(call _ge_attempt,$($(1)),$(1)),$(call _ge_attempt,$(2))) +endef +_ge_attempt = $(or $(get-executable),$(_gea_warn),$(call _gea_err,$(2))) +_gea_warn = $(warning The path '$(1)' is not executable.) +_gea_err = $(if $(1),$(error Please set '$(1)' appropriately)) + +# try-cc +# Usage: option = $(call try-cc, source-to-build, cc-options) +try-cc = $(shell sh -c \ + 'TMP="$(OUTPUT)$(TMPOUT).$$$$"; \ + echo "$(1)" | \ + $(CC) -x c - $(2) -o "$$TMP" > /dev/null 2>&1 && echo y; \ + rm -f "$$TMP"') diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 45da8d186b4..23eb22b05d2 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -166,11 +166,11 @@ struct perf_evsel *perf_evlist__id2evsel(struct perf_evlist *evlist, u64 id) return NULL; } -union perf_event *perf_evlist__read_on_cpu(struct perf_evlist *evlist, int cpu) +union perf_event *perf_evlist__mmap_read(struct perf_evlist *evlist, int idx) { /* XXX Move this to perf.c, making it generally available */ unsigned int page_size = sysconf(_SC_PAGE_SIZE); - struct perf_mmap *md = &evlist->mmap[cpu]; + struct perf_mmap *md = &evlist->mmap[idx]; unsigned int head = perf_mmap__read_head(md); unsigned int old = md->prev; unsigned char *data = md->base + page_size; @@ -235,31 +235,37 @@ union perf_event *perf_evlist__read_on_cpu(struct perf_evlist *evlist, int cpu) void perf_evlist__munmap(struct perf_evlist *evlist) { - int cpu; + int i; - for (cpu = 0; cpu < evlist->cpus->nr; cpu++) { - if (evlist->mmap[cpu].base != NULL) { - munmap(evlist->mmap[cpu].base, evlist->mmap_len); - evlist->mmap[cpu].base = NULL; + for (i = 0; i < evlist->nr_mmaps; i++) { + if (evlist->mmap[i].base != NULL) { + munmap(evlist->mmap[i].base, evlist->mmap_len); + evlist->mmap[i].base = NULL; } } + + free(evlist->mmap); + evlist->mmap = NULL; } int perf_evlist__alloc_mmap(struct perf_evlist *evlist) { - evlist->mmap = zalloc(evlist->cpus->nr * sizeof(struct perf_mmap)); + evlist->nr_mmaps = evlist->cpus->nr; + if (evlist->cpus->map[0] == -1) + evlist->nr_mmaps = evlist->threads->nr; + evlist->mmap = zalloc(evlist->nr_mmaps * sizeof(struct perf_mmap)); return evlist->mmap != NULL ? 0 : -ENOMEM; } static int __perf_evlist__mmap(struct perf_evlist *evlist, struct perf_evsel *evsel, - int cpu, int prot, int mask, int fd) + int idx, int prot, int mask, int fd) { - evlist->mmap[cpu].prev = 0; - evlist->mmap[cpu].mask = mask; - evlist->mmap[cpu].base = mmap(NULL, evlist->mmap_len, prot, + evlist->mmap[idx].prev = 0; + evlist->mmap[idx].mask = mask; + evlist->mmap[idx].base = mmap(NULL, evlist->mmap_len, prot, MAP_SHARED, fd, 0); - if (evlist->mmap[cpu].base == MAP_FAILED) { - if (evlist->cpus->map[cpu] == -1 && evsel->attr.inherit) + if (evlist->mmap[idx].base == MAP_FAILED) { + if (evlist->cpus->map[idx] == -1 && evsel->attr.inherit) ui__warning("Inherit is not allowed on per-task " "events using mmap.\n"); return -1; @@ -269,6 +275,86 @@ static int __perf_evlist__mmap(struct perf_evlist *evlist, struct perf_evsel *ev return 0; } +static int perf_evlist__mmap_per_cpu(struct perf_evlist *evlist, int prot, int mask) +{ + struct perf_evsel *evsel; + int cpu, thread; + + for (cpu = 0; cpu < evlist->cpus->nr; cpu++) { + int output = -1; + + for (thread = 0; thread < evlist->threads->nr; thread++) { + list_for_each_entry(evsel, &evlist->entries, node) { + int fd = FD(evsel, cpu, thread); + + if (output == -1) { + output = fd; + if (__perf_evlist__mmap(evlist, evsel, cpu, + prot, mask, output) < 0) + goto out_unmap; + } else { + if (ioctl(fd, PERF_EVENT_IOC_SET_OUTPUT, output) != 0) + goto out_unmap; + } + + if ((evsel->attr.read_format & PERF_FORMAT_ID) && + perf_evlist__id_add_fd(evlist, evsel, cpu, thread, fd) < 0) + goto out_unmap; + } + } + } + + return 0; + +out_unmap: + for (cpu = 0; cpu < evlist->cpus->nr; cpu++) { + if (evlist->mmap[cpu].base != NULL) { + munmap(evlist->mmap[cpu].base, evlist->mmap_len); + evlist->mmap[cpu].base = NULL; + } + } + return -1; +} + +static int perf_evlist__mmap_per_thread(struct perf_evlist *evlist, int prot, int mask) +{ + struct perf_evsel *evsel; + int thread; + + for (thread = 0; thread < evlist->threads->nr; thread++) { + int output = -1; + + list_for_each_entry(evsel, &evlist->entries, node) { + int fd = FD(evsel, 0, thread); + + if (output == -1) { + output = fd; + if (__perf_evlist__mmap(evlist, evsel, thread, + prot, mask, output) < 0) + goto out_unmap; + } else { + if (ioctl(fd, PERF_EVENT_IOC_SET_OUTPUT, output) != 0) + goto out_unmap; + } + + if ((evsel->attr.read_format & PERF_FORMAT_ID) && + perf_evlist__id_add_fd(evlist, evsel, 0, thread, fd) < 0) + goto out_unmap; + } + } + + return 0; + +out_unmap: + for (thread = 0; thread < evlist->threads->nr; thread++) { + if (evlist->mmap[thread].base != NULL) { + munmap(evlist->mmap[thread].base, evlist->mmap_len); + evlist->mmap[thread].base = NULL; + } + } + return -1; +} + /** perf_evlist__mmap - Create per cpu maps to receive events * * @evlist - list of events @@ -287,11 +373,11 @@ static int __perf_evlist__mmap(struct perf_evlist *evlist, struct perf_evsel *ev int perf_evlist__mmap(struct perf_evlist *evlist, int pages, bool overwrite) { unsigned int page_size = sysconf(_SC_PAGE_SIZE); - int mask = pages * page_size - 1, cpu; - struct perf_evsel *first_evsel, *evsel; + int mask = pages * page_size - 1; + struct perf_evsel *evsel; const struct cpu_map *cpus = evlist->cpus; const struct thread_map *threads = evlist->threads; - int thread, prot = PROT_READ | (overwrite ? 0 : PROT_WRITE); + int prot = PROT_READ | (overwrite ? 0 : PROT_WRITE); if (evlist->mmap == NULL && perf_evlist__alloc_mmap(evlist) < 0) return -ENOMEM; @@ -301,43 +387,18 @@ int perf_evlist__mmap(struct perf_evlist *evlist, int pages, bool overwrite) evlist->overwrite = overwrite; evlist->mmap_len = (pages + 1) * page_size; - first_evsel = list_entry(evlist->entries.next, struct perf_evsel, node); list_for_each_entry(evsel, &evlist->entries, node) { if ((evsel->attr.read_format & PERF_FORMAT_ID) && evsel->sample_id == NULL && perf_evsel__alloc_id(evsel, cpus->nr, threads->nr) < 0) return -ENOMEM; - - for (cpu = 0; cpu < cpus->nr; cpu++) { - for (thread = 0; thread < threads->nr; thread++) { - int fd = FD(evsel, cpu, thread); - - if (evsel->idx || thread) { - if (ioctl(fd, PERF_EVENT_IOC_SET_OUTPUT, - FD(first_evsel, cpu, 0)) != 0) - goto out_unmap; - } else if (__perf_evlist__mmap(evlist, evsel, cpu, - prot, mask, fd) < 0) - goto out_unmap; - - if ((evsel->attr.read_format & PERF_FORMAT_ID) && - perf_evlist__id_add_fd(evlist, evsel, cpu, thread, fd) < 0) - goto out_unmap; - } - } } - return 0; + if (evlist->cpus->map[0] == -1) + return perf_evlist__mmap_per_thread(evlist, prot, mask); -out_unmap: - for (cpu = 0; cpu < cpus->nr; cpu++) { - if (evlist->mmap[cpu].base != NULL) { - munmap(evlist->mmap[cpu].base, evlist->mmap_len); - evlist->mmap[cpu].base = NULL; - } - } - return -1; + return perf_evlist__mmap_per_cpu(evlist, prot, mask); } int perf_evlist__create_maps(struct perf_evlist *evlist, pid_t target_pid, @@ -348,7 +409,7 @@ int perf_evlist__create_maps(struct perf_evlist *evlist, pid_t target_pid, if (evlist->threads == NULL) return -1; - if (target_tid != -1) + if (cpu_list == NULL && target_tid != -1) evlist->cpus = cpu_map__dummy_new(); else evlist->cpus = cpu_map__new(cpu_list); diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h index 8b1cb7a4c5f..7109d7add14 100644 --- a/tools/perf/util/evlist.h +++ b/tools/perf/util/evlist.h @@ -17,6 +17,7 @@ struct perf_evlist { struct hlist_head heads[PERF_EVLIST__HLIST_SIZE]; int nr_entries; int nr_fds; + int nr_mmaps; int mmap_len; bool overwrite; union perf_event event_copy; @@ -46,7 +47,7 @@ void perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd); struct perf_evsel *perf_evlist__id2evsel(struct perf_evlist *evlist, u64 id); -union perf_event *perf_evlist__read_on_cpu(struct perf_evlist *self, int cpu); +union perf_event *perf_evlist__mmap_read(struct perf_evlist *self, int idx); int perf_evlist__alloc_mmap(struct perf_evlist *evlist); int perf_evlist__mmap(struct perf_evlist *evlist, int pages, bool overwrite); diff --git a/tools/perf/util/include/asm/alternative-asm.h b/tools/perf/util/include/asm/alternative-asm.h new file mode 100644 index 00000000000..6789d788d49 --- /dev/null +++ b/tools/perf/util/include/asm/alternative-asm.h @@ -0,0 +1,8 @@ +#ifndef _PERF_ASM_ALTERNATIVE_ASM_H +#define _PERF_ASM_ALTERNATIVE_ASM_H + +/* Just disable it so we can build arch/x86/lib/memcpy_64.S for perf bench: */ + +#define altinstruction_entry # + +#endif diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 952b4ae3d95..41982c373fa 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -31,34 +31,36 @@ char debugfs_path[MAXPATHLEN]; #define CSW(x) .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_##x static struct event_symbol event_symbols[] = { - { CHW(CPU_CYCLES), "cpu-cycles", "cycles" }, - { CHW(INSTRUCTIONS), "instructions", "" }, - { CHW(CACHE_REFERENCES), "cache-references", "" }, - { CHW(CACHE_MISSES), "cache-misses", "" }, - { CHW(BRANCH_INSTRUCTIONS), "branch-instructions", "branches" }, - { CHW(BRANCH_MISSES), "branch-misses", "" }, - { CHW(BUS_CYCLES), "bus-cycles", "" }, - - { CSW(CPU_CLOCK), "cpu-clock", "" }, - { CSW(TASK_CLOCK), "task-clock", "" }, - { CSW(PAGE_FAULTS), "page-faults", "faults" }, - { CSW(PAGE_FAULTS_MIN), "minor-faults", "" }, - { CSW(PAGE_FAULTS_MAJ), "major-faults", "" }, - { CSW(CONTEXT_SWITCHES), "context-switches", "cs" }, - { CSW(CPU_MIGRATIONS), "cpu-migrations", "migrations" }, - { CSW(ALIGNMENT_FAULTS), "alignment-faults", "" }, - { CSW(EMULATION_FAULTS), "emulation-faults", "" }, + { CHW(CPU_CYCLES), "cpu-cycles", "cycles" }, + { CHW(STALLED_CYCLES_FRONTEND), "stalled-cycles-frontend", "idle-cycles-frontend" }, + { CHW(STALLED_CYCLES_BACKEND), "stalled-cycles-backend", "idle-cycles-backend" }, + { CHW(INSTRUCTIONS), "instructions", "" }, + { CHW(CACHE_REFERENCES), "cache-references", "" }, + { CHW(CACHE_MISSES), "cache-misses", "" }, + { CHW(BRANCH_INSTRUCTIONS), "branch-instructions", "branches" }, + { CHW(BRANCH_MISSES), "branch-misses", "" }, + { CHW(BUS_CYCLES), "bus-cycles", "" }, + + { CSW(CPU_CLOCK), "cpu-clock", "" }, + { CSW(TASK_CLOCK), "task-clock", "" }, + { CSW(PAGE_FAULTS), "page-faults", "faults" }, + { CSW(PAGE_FAULTS_MIN), "minor-faults", "" }, + { CSW(PAGE_FAULTS_MAJ), "major-faults", "" }, + { CSW(CONTEXT_SWITCHES), "context-switches", "cs" }, + { CSW(CPU_MIGRATIONS), "cpu-migrations", "migrations" }, + { CSW(ALIGNMENT_FAULTS), "alignment-faults", "" }, + { CSW(EMULATION_FAULTS), "emulation-faults", "" }, }; #define __PERF_EVENT_FIELD(config, name) \ ((config & PERF_EVENT_##name##_MASK) >> PERF_EVENT_##name##_SHIFT) -#define PERF_EVENT_RAW(config) __PERF_EVENT_FIELD(config, RAW) +#define PERF_EVENT_RAW(config) __PERF_EVENT_FIELD(config, RAW) #define PERF_EVENT_CONFIG(config) __PERF_EVENT_FIELD(config, CONFIG) -#define PERF_EVENT_TYPE(config) __PERF_EVENT_FIELD(config, TYPE) +#define PERF_EVENT_TYPE(config) __PERF_EVENT_FIELD(config, TYPE) #define PERF_EVENT_ID(config) __PERF_EVENT_FIELD(config, EVENT) -static const char *hw_event_names[] = { +static const char *hw_event_names[PERF_COUNT_HW_MAX] = { "cycles", "instructions", "cache-references", @@ -66,11 +68,13 @@ static const char *hw_event_names[] = { "branches", "branch-misses", "bus-cycles", + "stalled-cycles-frontend", + "stalled-cycles-backend", }; -static const char *sw_event_names[] = { - "cpu-clock-msecs", - "task-clock-msecs", +static const char *sw_event_names[PERF_COUNT_SW_MAX] = { + "cpu-clock", + "task-clock", "page-faults", "context-switches", "CPU-migrations", @@ -307,7 +311,7 @@ const char *__event_name(int type, u64 config) switch (type) { case PERF_TYPE_HARDWARE: - if (config < PERF_COUNT_HW_MAX) + if (config < PERF_COUNT_HW_MAX && hw_event_names[config]) return hw_event_names[config]; return "unknown-hardware"; @@ -333,7 +337,7 @@ const char *__event_name(int type, u64 config) } case PERF_TYPE_SOFTWARE: - if (config < PERF_COUNT_SW_MAX) + if (config < PERF_COUNT_SW_MAX && sw_event_names[config]) return sw_event_names[config]; return "unknown-software"; @@ -648,13 +652,15 @@ static int check_events(const char *str, unsigned int i) int n; n = strlen(event_symbols[i].symbol); - if (!strncmp(str, event_symbols[i].symbol, n)) + if (!strncasecmp(str, event_symbols[i].symbol, n)) return n; n = strlen(event_symbols[i].alias); - if (n) - if (!strncmp(str, event_symbols[i].alias, n)) + if (n) { + if (!strncasecmp(str, event_symbols[i].alias, n)) return n; + } + return 0; } @@ -718,15 +724,22 @@ parse_numeric_event(const char **strp, struct perf_event_attr *attr) return EVT_FAILED; } -static enum event_result +static int parse_event_modifier(const char **strp, struct perf_event_attr *attr) { const char *str = *strp; int exclude = 0; int eu = 0, ek = 0, eh = 0, precise = 0; - if (*str++ != ':') + if (!*str) + return 0; + + if (*str == ',') return 0; + + if (*str++ != ':') + return -1; + while (*str) { if (*str == 'u') { if (!exclude) @@ -747,14 +760,16 @@ parse_event_modifier(const char **strp, struct perf_event_attr *attr) ++str; } - if (str >= *strp + 2) { - *strp = str; - attr->exclude_user = eu; - attr->exclude_kernel = ek; - attr->exclude_hv = eh; - attr->precise_ip = precise; - return 1; - } + if (str < *strp + 2) + return -1; + + *strp = str; + + attr->exclude_user = eu; + attr->exclude_kernel = ek; + attr->exclude_hv = eh; + attr->precise_ip = precise; + return 0; } @@ -797,7 +812,12 @@ parse_event_symbols(const struct option *opt, const char **str, return EVT_FAILED; modifier: - parse_event_modifier(str, attr); + if (parse_event_modifier(str, attr) < 0) { + fprintf(stderr, "invalid event modifier: '%s'\n", *str); + fprintf(stderr, "Run 'perf list' for a list of valid events and modifiers\n"); + + return EVT_FAILED; + } return ret; } @@ -912,7 +932,7 @@ void print_tracepoint_events(const char *subsys_glob, const char *event_glob) snprintf(evt_path, MAXPATHLEN, "%s:%s", sys_dirent.d_name, evt_dirent.d_name); - printf(" %-42s [%s]\n", evt_path, + printf(" %-50s [%s]\n", evt_path, event_type_descriptors[PERF_TYPE_TRACEPOINT]); } closedir(evt_dir); @@ -977,7 +997,7 @@ void print_events_type(u8 type) else snprintf(name, sizeof(name), "%s", syms->symbol); - printf(" %-42s [%s]\n", name, + printf(" %-50s [%s]\n", name, event_type_descriptors[type]); } } @@ -995,11 +1015,10 @@ int print_hwcache_events(const char *event_glob) for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) { char *name = event_cache_name(type, op, i); - if (event_glob != NULL && - !strglobmatch(name, event_glob)) + if (event_glob != NULL && !strglobmatch(name, event_glob)) continue; - printf(" %-42s [%s]\n", name, + printf(" %-50s [%s]\n", name, event_type_descriptors[PERF_TYPE_HW_CACHE]); ++printed; } @@ -1009,14 +1028,16 @@ int print_hwcache_events(const char *event_glob) return printed; } +#define MAX_NAME_LEN 100 + /* * Print the help text for the event symbols: */ void print_events(const char *event_glob) { - struct event_symbol *syms = event_symbols; unsigned int i, type, prev_type = -1, printed = 0, ntypes_printed = 0; - char name[40]; + struct event_symbol *syms = event_symbols; + char name[MAX_NAME_LEN]; printf("\n"); printf("List of pre-defined events (to be used in -e):\n"); @@ -1036,10 +1057,10 @@ void print_events(const char *event_glob) continue; if (strlen(syms->alias)) - sprintf(name, "%s OR %s", syms->symbol, syms->alias); + snprintf(name, MAX_NAME_LEN, "%s OR %s", syms->symbol, syms->alias); else - strcpy(name, syms->symbol); - printf(" %-42s [%s]\n", name, + strncpy(name, syms->symbol, MAX_NAME_LEN); + printf(" %-50s [%s]\n", name, event_type_descriptors[type]); prev_type = type; @@ -1056,12 +1077,12 @@ void print_events(const char *event_glob) return; printf("\n"); - printf(" %-42s [%s]\n", + printf(" %-50s [%s]\n", "rNNN (see 'perf list --help' on how to encode it)", event_type_descriptors[PERF_TYPE_RAW]); printf("\n"); - printf(" %-42s [%s]\n", + printf(" %-50s [%s]\n", "mem:<addr>[:access]", event_type_descriptors[PERF_TYPE_BREAKPOINT]); printf("\n"); diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c index b7c85ce466a..3b9d0b800d5 100644 --- a/tools/perf/util/probe-finder.c +++ b/tools/perf/util/probe-finder.c @@ -1471,6 +1471,38 @@ static int find_probe_point_by_func(struct probe_finder *pf) return _param.retval; } +struct pubname_callback_param { + char *function; + char *file; + Dwarf_Die *cu_die; + Dwarf_Die *sp_die; + int found; +}; + +static int pubname_search_cb(Dwarf *dbg, Dwarf_Global *gl, void *data) +{ + struct pubname_callback_param *param = data; + + if (dwarf_offdie(dbg, gl->die_offset, param->sp_die)) { + if (dwarf_tag(param->sp_die) != DW_TAG_subprogram) + return DWARF_CB_OK; + + if (die_compare_name(param->sp_die, param->function)) { + if (!dwarf_offdie(dbg, gl->cu_offset, param->cu_die)) + return DWARF_CB_OK; + + if (param->file && + strtailcmp(param->file, dwarf_decl_file(param->sp_die))) + return DWARF_CB_OK; + + param->found = 1; + return DWARF_CB_ABORT; + } + } + + return DWARF_CB_OK; +} + /* Find probe points from debuginfo */ static int find_probes(int fd, struct probe_finder *pf) { @@ -1498,6 +1530,28 @@ static int find_probes(int fd, struct probe_finder *pf) off = 0; line_list__init(&pf->lcache); + + /* Fastpath: lookup by function name from .debug_pubnames section */ + if (pp->function) { + struct pubname_callback_param pubname_param = { + .function = pp->function, + .file = pp->file, + .cu_die = &pf->cu_die, + .sp_die = &pf->sp_die, + .found = 0, + }; + struct dwarf_callback_param probe_param = { + .data = pf, + }; + + dwarf_getpubnames(dbg, pubname_search_cb, &pubname_param, 0); + if (pubname_param.found) { + ret = probe_point_search_cb(&pf->sp_die, &probe_param); + if (ret) + goto found; + } + } + /* Loop on CUs (Compilation Unit) */ while (!dwarf_nextcu(dbg, off, &noff, &cuhl, NULL, NULL, NULL)) { /* Get the DIE(Debugging Information Entry) of this CU */ @@ -1525,6 +1579,8 @@ static int find_probes(int fd, struct probe_finder *pf) } off = noff; } + +found: line_list__free(&pf->lcache); if (dwfl) dwfl_end(dwfl); @@ -1946,6 +2002,22 @@ int find_line_range(int fd, struct line_range *lr) return -EBADF; } + /* Fastpath: lookup by function name from .debug_pubnames section */ + if (lr->function) { + struct pubname_callback_param pubname_param = { + .function = lr->function, .file = lr->file, + .cu_die = &lf.cu_die, .sp_die = &lf.sp_die, .found = 0}; + struct dwarf_callback_param line_range_param = { + .data = (void *)&lf, .retval = 0}; + + dwarf_getpubnames(dbg, pubname_search_cb, &pubname_param, 0); + if (pubname_param.found) { + line_range_search_cb(&lf.sp_die, &line_range_param); + if (lf.found) + goto found; + } + } + /* Loop on CUs (Compilation Unit) */ while (!lf.found && ret >= 0) { if (dwarf_nextcu(dbg, off, &noff, &cuhl, NULL, NULL, NULL) != 0) @@ -1974,6 +2046,7 @@ int find_line_range(int fd, struct line_range *lr) off = noff; } +found: /* Store comp_dir */ if (lf.found) { comp_dir = cu_get_comp_dir(&lf.cu_die); diff --git a/tools/perf/util/probe-finder.h b/tools/perf/util/probe-finder.h index beaefc3c122..605730a366d 100644 --- a/tools/perf/util/probe-finder.h +++ b/tools/perf/util/probe-finder.h @@ -49,6 +49,7 @@ struct probe_finder { Dwarf_Addr addr; /* Address */ const char *fname; /* Real file name */ Dwarf_Die cu_die; /* Current CU */ + Dwarf_Die sp_die; struct list_head lcache; /* Line cache for lazy match */ /* For variable searching */ @@ -83,6 +84,7 @@ struct line_finder { int lno_s; /* Start line number */ int lno_e; /* End line number */ Dwarf_Die cu_die; /* Current CU */ + Dwarf_Die sp_die; int found; }; diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c index f5e38451fdc..b5c7d818001 100644 --- a/tools/perf/util/python.c +++ b/tools/perf/util/python.c @@ -680,7 +680,7 @@ static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist, &cpu, &sample_id_all)) return NULL; - event = perf_evlist__read_on_cpu(evlist, cpu); + event = perf_evlist__mmap_read(evlist, cpu); if (event != NULL) { struct perf_evsel *first; PyObject *pyevent = pyrf_event__new(event); @@ -810,6 +810,9 @@ static struct { { "COUNT_HW_CACHE_RESULT_ACCESS", PERF_COUNT_HW_CACHE_RESULT_ACCESS }, { "COUNT_HW_CACHE_RESULT_MISS", PERF_COUNT_HW_CACHE_RESULT_MISS }, + { "COUNT_HW_STALLED_CYCLES_FRONTEND", PERF_COUNT_HW_STALLED_CYCLES_FRONTEND }, + { "COUNT_HW_STALLED_CYCLES_BACKEND", PERF_COUNT_HW_STALLED_CYCLES_BACKEND }, + { "COUNT_SW_CPU_CLOCK", PERF_COUNT_SW_CPU_CLOCK }, { "COUNT_SW_TASK_CLOCK", PERF_COUNT_SW_TASK_CLOCK }, { "COUNT_SW_PAGE_FAULTS", PERF_COUNT_SW_PAGE_FAULTS }, diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index caa224522fe..fff66741f18 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -1156,6 +1156,18 @@ size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp) return ret; } +struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session, + unsigned int type) +{ + struct perf_evsel *pos; + + list_for_each_entry(pos, &session->evlist->entries, node) { + if (pos->attr.type == type) + return pos; + } + return NULL; +} + void perf_session__print_symbols(union perf_event *event, struct perf_sample *sample, struct perf_session *session) diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h index 1ac481fc110..8daaa2d1539 100644 --- a/tools/perf/util/session.h +++ b/tools/perf/util/session.h @@ -162,6 +162,9 @@ static inline int perf_session__parse_sample(struct perf_session *session, session->sample_id_all, sample); } +struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session, + unsigned int type); + void perf_session__print_symbols(union perf_event *event, struct perf_sample *sample, struct perf_session *session); diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index f06c10f092b..516876dfbe5 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -31,13 +31,13 @@ #define NT_GNU_BUILD_ID 3 #endif -static bool dso__build_id_equal(const struct dso *self, u8 *build_id); +static bool dso__build_id_equal(const struct dso *dso, u8 *build_id); static int elf_read_build_id(Elf *elf, void *bf, size_t size); static void dsos__add(struct list_head *head, struct dso *dso); static struct map *map__new2(u64 start, struct dso *dso, enum map_type type); -static int dso__load_kernel_sym(struct dso *self, struct map *map, +static int dso__load_kernel_sym(struct dso *dso, struct map *map, symbol_filter_t filter); -static int dso__load_guest_kernel_sym(struct dso *self, struct map *map, +static int dso__load_guest_kernel_sym(struct dso *dso, struct map *map, symbol_filter_t filter); static int vmlinux_path__nr_entries; static char **vmlinux_path; @@ -49,27 +49,27 @@ struct symbol_conf symbol_conf = { .symfs = "", }; -int dso__name_len(const struct dso *self) +int dso__name_len(const struct dso *dso) { if (verbose) - return self->long_name_len; + return dso->long_name_len; - return self->short_name_len; + return dso->short_name_len; } -bool dso__loaded(const struct dso *self, enum map_type type) +bool dso__loaded(const struct dso *dso, enum map_type type) { - return self->loaded & (1 << type); + return dso->loaded & (1 << type); } -bool dso__sorted_by_name(const struct dso *self, enum map_type type) +bool dso__sorted_by_name(const struct dso *dso, enum map_type type) { - return self->sorted_by_name & (1 << type); + return dso->sorted_by_name & (1 << type); } -static void dso__set_sorted_by_name(struct dso *self, enum map_type type) +static void dso__set_sorted_by_name(struct dso *dso, enum map_type type) { - self->sorted_by_name |= (1 << type); + dso->sorted_by_name |= (1 << type); } bool symbol_type__is_a(char symbol_type, enum map_type map_type) @@ -84,9 +84,9 @@ bool symbol_type__is_a(char symbol_type, enum map_type map_type) } } -static void symbols__fixup_end(struct rb_root *self) +static void symbols__fixup_end(struct rb_root *symbols) { - struct rb_node *nd, *prevnd = rb_first(self); + struct rb_node *nd, *prevnd = rb_first(symbols); struct symbol *curr, *prev; if (prevnd == NULL) @@ -107,10 +107,10 @@ static void symbols__fixup_end(struct rb_root *self) curr->end = roundup(curr->start, 4096); } -static void __map_groups__fixup_end(struct map_groups *self, enum map_type type) +static void __map_groups__fixup_end(struct map_groups *mg, enum map_type type) { struct map *prev, *curr; - struct rb_node *nd, *prevnd = rb_first(&self->maps[type]); + struct rb_node *nd, *prevnd = rb_first(&mg->maps[type]); if (prevnd == NULL) return; @@ -130,128 +130,128 @@ static void __map_groups__fixup_end(struct map_groups *self, enum map_type type) curr->end = ~0ULL; } -static void map_groups__fixup_end(struct map_groups *self) +static void map_groups__fixup_end(struct map_groups *mg) { int i; for (i = 0; i < MAP__NR_TYPES; ++i) - __map_groups__fixup_end(self, i); + __map_groups__fixup_end(mg, i); } static struct symbol *symbol__new(u64 start, u64 len, u8 binding, const char *name) { size_t namelen = strlen(name) + 1; - struct symbol *self = calloc(1, (symbol_conf.priv_size + - sizeof(*self) + namelen)); - if (self == NULL) + struct symbol *sym = calloc(1, (symbol_conf.priv_size + + sizeof(*sym) + namelen)); + if (sym == NULL) return NULL; if (symbol_conf.priv_size) - self = ((void *)self) + symbol_conf.priv_size; - - self->start = start; - self->end = len ? start + len - 1 : start; - self->binding = binding; - self->namelen = namelen - 1; + sym = ((void *)sym) + symbol_conf.priv_size; - pr_debug4("%s: %s %#" PRIx64 "-%#" PRIx64 "\n", __func__, name, start, self->end); + sym->start = start; + sym->end = len ? start + len - 1 : start; + sym->binding = binding; + sym->namelen = namelen - 1; - memcpy(self->name, name, namelen); + pr_debug4("%s: %s %#" PRIx64 "-%#" PRIx64 "\n", + __func__, name, start, sym->end); + memcpy(sym->name, name, namelen); - return self; + return sym; } -void symbol__delete(struct symbol *self) +void symbol__delete(struct symbol *sym) { - free(((void *)self) - symbol_conf.priv_size); + free(((void *)sym) - symbol_conf.priv_size); } -static size_t symbol__fprintf(struct symbol *self, FILE *fp) +static size_t symbol__fprintf(struct symbol *sym, FILE *fp) { return fprintf(fp, " %" PRIx64 "-%" PRIx64 " %c %s\n", - self->start, self->end, - self->binding == STB_GLOBAL ? 'g' : - self->binding == STB_LOCAL ? 'l' : 'w', - self->name); + sym->start, sym->end, + sym->binding == STB_GLOBAL ? 'g' : + sym->binding == STB_LOCAL ? 'l' : 'w', + sym->name); } -void dso__set_long_name(struct dso *self, char *name) +void dso__set_long_name(struct dso *dso, char *name) { if (name == NULL) return; - self->long_name = name; - self->long_name_len = strlen(name); + dso->long_name = name; + dso->long_name_len = strlen(name); } -static void dso__set_short_name(struct dso *self, const char *name) +static void dso__set_short_name(struct dso *dso, const char *name) { if (name == NULL) return; - self->short_name = name; - self->short_name_len = strlen(name); + dso->short_name = name; + dso->short_name_len = strlen(name); } -static void dso__set_basename(struct dso *self) +static void dso__set_basename(struct dso *dso) { - dso__set_short_name(self, basename(self->long_name)); + dso__set_short_name(dso, basename(dso->long_name)); } struct dso *dso__new(const char *name) { - struct dso *self = calloc(1, sizeof(*self) + strlen(name) + 1); + struct dso *dso = calloc(1, sizeof(*dso) + strlen(name) + 1); - if (self != NULL) { + if (dso != NULL) { int i; - strcpy(self->name, name); - dso__set_long_name(self, self->name); - dso__set_short_name(self, self->name); + strcpy(dso->name, name); + dso__set_long_name(dso, dso->name); + dso__set_short_name(dso, dso->name); for (i = 0; i < MAP__NR_TYPES; ++i) - self->symbols[i] = self->symbol_names[i] = RB_ROOT; - self->symtab_type = SYMTAB__NOT_FOUND; - self->loaded = 0; - self->sorted_by_name = 0; - self->has_build_id = 0; - self->kernel = DSO_TYPE_USER; - INIT_LIST_HEAD(&self->node); + dso->symbols[i] = dso->symbol_names[i] = RB_ROOT; + dso->symtab_type = SYMTAB__NOT_FOUND; + dso->loaded = 0; + dso->sorted_by_name = 0; + dso->has_build_id = 0; + dso->kernel = DSO_TYPE_USER; + INIT_LIST_HEAD(&dso->node); } - return self; + return dso; } -static void symbols__delete(struct rb_root *self) +static void symbols__delete(struct rb_root *symbols) { struct symbol *pos; - struct rb_node *next = rb_first(self); + struct rb_node *next = rb_first(symbols); while (next) { pos = rb_entry(next, struct symbol, rb_node); next = rb_next(&pos->rb_node); - rb_erase(&pos->rb_node, self); + rb_erase(&pos->rb_node, symbols); symbol__delete(pos); } } -void dso__delete(struct dso *self) +void dso__delete(struct dso *dso) { int i; for (i = 0; i < MAP__NR_TYPES; ++i) - symbols__delete(&self->symbols[i]); - if (self->sname_alloc) - free((char *)self->short_name); - if (self->lname_alloc) - free(self->long_name); - free(self); + symbols__delete(&dso->symbols[i]); + if (dso->sname_alloc) + free((char *)dso->short_name); + if (dso->lname_alloc) + free(dso->long_name); + free(dso); } -void dso__set_build_id(struct dso *self, void *build_id) +void dso__set_build_id(struct dso *dso, void *build_id) { - memcpy(self->build_id, build_id, sizeof(self->build_id)); - self->has_build_id = 1; + memcpy(dso->build_id, build_id, sizeof(dso->build_id)); + dso->has_build_id = 1; } -static void symbols__insert(struct rb_root *self, struct symbol *sym) +static void symbols__insert(struct rb_root *symbols, struct symbol *sym) { - struct rb_node **p = &self->rb_node; + struct rb_node **p = &symbols->rb_node; struct rb_node *parent = NULL; const u64 ip = sym->start; struct symbol *s; @@ -265,17 +265,17 @@ static void symbols__insert(struct rb_root *self, struct symbol *sym) p = &(*p)->rb_right; } rb_link_node(&sym->rb_node, parent, p); - rb_insert_color(&sym->rb_node, self); + rb_insert_color(&sym->rb_node, symbols); } -static struct symbol *symbols__find(struct rb_root *self, u64 ip) +static struct symbol *symbols__find(struct rb_root *symbols, u64 ip) { struct rb_node *n; - if (self == NULL) + if (symbols == NULL) return NULL; - n = self->rb_node; + n = symbols->rb_node; while (n) { struct symbol *s = rb_entry(n, struct symbol, rb_node); @@ -296,9 +296,9 @@ struct symbol_name_rb_node { struct symbol sym; }; -static void symbols__insert_by_name(struct rb_root *self, struct symbol *sym) +static void symbols__insert_by_name(struct rb_root *symbols, struct symbol *sym) { - struct rb_node **p = &self->rb_node; + struct rb_node **p = &symbols->rb_node; struct rb_node *parent = NULL; struct symbol_name_rb_node *symn, *s; @@ -313,27 +313,29 @@ static void symbols__insert_by_name(struct rb_root *self, struct symbol *sym) p = &(*p)->rb_right; } rb_link_node(&symn->rb_node, parent, p); - rb_insert_color(&symn->rb_node, self); + rb_insert_color(&symn->rb_node, symbols); } -static void symbols__sort_by_name(struct rb_root *self, struct rb_root *source) +static void symbols__sort_by_name(struct rb_root *symbols, + struct rb_root *source) { struct rb_node *nd; for (nd = rb_first(source); nd; nd = rb_next(nd)) { struct symbol *pos = rb_entry(nd, struct symbol, rb_node); - symbols__insert_by_name(self, pos); + symbols__insert_by_name(symbols, pos); } } -static struct symbol *symbols__find_by_name(struct rb_root *self, const char *name) +static struct symbol *symbols__find_by_name(struct rb_root *symbols, + const char *name) { struct rb_node *n; - if (self == NULL) + if (symbols == NULL) return NULL; - n = self->rb_node; + n = symbols->rb_node; while (n) { struct symbol_name_rb_node *s; @@ -353,29 +355,29 @@ static struct symbol *symbols__find_by_name(struct rb_root *self, const char *na return NULL; } -struct symbol *dso__find_symbol(struct dso *self, +struct symbol *dso__find_symbol(struct dso *dso, enum map_type type, u64 addr) { - return symbols__find(&self->symbols[type], addr); + return symbols__find(&dso->symbols[type], addr); } -struct symbol *dso__find_symbol_by_name(struct dso *self, enum map_type type, +struct symbol *dso__find_symbol_by_name(struct dso *dso, enum map_type type, const char *name) { - return symbols__find_by_name(&self->symbol_names[type], name); + return symbols__find_by_name(&dso->symbol_names[type], name); } -void dso__sort_by_name(struct dso *self, enum map_type type) +void dso__sort_by_name(struct dso *dso, enum map_type type) { - dso__set_sorted_by_name(self, type); - return symbols__sort_by_name(&self->symbol_names[type], - &self->symbols[type]); + dso__set_sorted_by_name(dso, type); + return symbols__sort_by_name(&dso->symbol_names[type], + &dso->symbols[type]); } -int build_id__sprintf(const u8 *self, int len, char *bf) +int build_id__sprintf(const u8 *build_id, int len, char *bf) { char *bid = bf; - const u8 *raw = self; + const u8 *raw = build_id; int i; for (i = 0; i < len; ++i) { @@ -384,24 +386,25 @@ int build_id__sprintf(const u8 *self, int len, char *bf) bid += 2; } - return raw - self; + return raw - build_id; } -size_t dso__fprintf_buildid(struct dso *self, FILE *fp) +size_t dso__fprintf_buildid(struct dso *dso, FILE *fp) { char sbuild_id[BUILD_ID_SIZE * 2 + 1]; - build_id__sprintf(self->build_id, sizeof(self->build_id), sbuild_id); + build_id__sprintf(dso->build_id, sizeof(dso->build_id), sbuild_id); return fprintf(fp, "%s", sbuild_id); } -size_t dso__fprintf_symbols_by_name(struct dso *self, enum map_type type, FILE *fp) +size_t dso__fprintf_symbols_by_name(struct dso *dso, + enum map_type type, FILE *fp) { size_t ret = 0; struct rb_node *nd; struct symbol_name_rb_node *pos; - for (nd = rb_first(&self->symbol_names[type]); nd; nd = rb_next(nd)) { + for (nd = rb_first(&dso->symbol_names[type]); nd; nd = rb_next(nd)) { pos = rb_entry(nd, struct symbol_name_rb_node, rb_node); fprintf(fp, "%s\n", pos->sym.name); } @@ -409,18 +412,18 @@ size_t dso__fprintf_symbols_by_name(struct dso *self, enum map_type type, FILE * return ret; } -size_t dso__fprintf(struct dso *self, enum map_type type, FILE *fp) +size_t dso__fprintf(struct dso *dso, enum map_type type, FILE *fp) { struct rb_node *nd; - size_t ret = fprintf(fp, "dso: %s (", self->short_name); + size_t ret = fprintf(fp, "dso: %s (", dso->short_name); - if (self->short_name != self->long_name) - ret += fprintf(fp, "%s, ", self->long_name); + if (dso->short_name != dso->long_name) + ret += fprintf(fp, "%s, ", dso->long_name); ret += fprintf(fp, "%s, %sloaded, ", map_type__name[type], - self->loaded ? "" : "NOT "); - ret += dso__fprintf_buildid(self, fp); + dso->loaded ? "" : "NOT "); + ret += dso__fprintf_buildid(dso, fp); ret += fprintf(fp, ")\n"); - for (nd = rb_first(&self->symbols[type]); nd; nd = rb_next(nd)) { + for (nd = rb_first(&dso->symbols[type]); nd; nd = rb_next(nd)) { struct symbol *pos = rb_entry(nd, struct symbol, rb_node); ret += symbol__fprintf(pos, fp); } @@ -543,10 +546,10 @@ static int map__process_kallsym_symbol(void *arg, const char *name, * so that we can in the next step set the symbol ->end address and then * call kernel_maps__split_kallsyms. */ -static int dso__load_all_kallsyms(struct dso *self, const char *filename, +static int dso__load_all_kallsyms(struct dso *dso, const char *filename, struct map *map) { - struct process_kallsyms_args args = { .map = map, .dso = self, }; + struct process_kallsyms_args args = { .map = map, .dso = dso, }; return kallsyms__parse(filename, &args, map__process_kallsym_symbol); } @@ -555,7 +558,7 @@ static int dso__load_all_kallsyms(struct dso *self, const char *filename, * kernel range is broken in several maps, named [kernel].N, as we don't have * the original ELF section names vmlinux have. */ -static int dso__split_kallsyms(struct dso *self, struct map *map, +static int dso__split_kallsyms(struct dso *dso, struct map *map, symbol_filter_t filter) { struct map_groups *kmaps = map__kmap(map)->kmaps; @@ -563,7 +566,7 @@ static int dso__split_kallsyms(struct dso *self, struct map *map, struct map *curr_map = map; struct symbol *pos; int count = 0, moved = 0; - struct rb_root *root = &self->symbols[map->type]; + struct rb_root *root = &dso->symbols[map->type]; struct rb_node *next = rb_first(root); int kernel_range = 0; @@ -582,7 +585,7 @@ static int dso__split_kallsyms(struct dso *self, struct map *map, if (strcmp(curr_map->dso->short_name, module)) { if (curr_map != map && - self->kernel == DSO_TYPE_GUEST_KERNEL && + dso->kernel == DSO_TYPE_GUEST_KERNEL && machine__is_default_guest(machine)) { /* * We assume all symbols of a module are @@ -618,14 +621,14 @@ static int dso__split_kallsyms(struct dso *self, struct map *map, pos->end = curr_map->map_ip(curr_map, pos->end); } else if (curr_map != map) { char dso_name[PATH_MAX]; - struct dso *dso; + struct dso *ndso; if (count == 0) { curr_map = map; goto filter_symbol; } - if (self->kernel == DSO_TYPE_GUEST_KERNEL) + if (dso->kernel == DSO_TYPE_GUEST_KERNEL) snprintf(dso_name, sizeof(dso_name), "[guest.kernel].%d", kernel_range++); @@ -634,15 +637,15 @@ static int dso__split_kallsyms(struct dso *self, struct map *map, "[kernel].%d", kernel_range++); - dso = dso__new(dso_name); - if (dso == NULL) + ndso = dso__new(dso_name); + if (ndso == NULL) return -1; - dso->kernel = self->kernel; + ndso->kernel = dso->kernel; - curr_map = map__new2(pos->start, dso, map->type); + curr_map = map__new2(pos->start, ndso, map->type); if (curr_map == NULL) { - dso__delete(dso); + dso__delete(ndso); return -1; } @@ -665,7 +668,7 @@ discard_symbol: rb_erase(&pos->rb_node, root); } if (curr_map != map && - self->kernel == DSO_TYPE_GUEST_KERNEL && + dso->kernel == DSO_TYPE_GUEST_KERNEL && machine__is_default_guest(kmaps->machine)) { dso__set_loaded(curr_map->dso, curr_map->type); } @@ -673,21 +676,21 @@ discard_symbol: rb_erase(&pos->rb_node, root); return count + moved; } -int dso__load_kallsyms(struct dso *self, const char *filename, +int dso__load_kallsyms(struct dso *dso, const char *filename, struct map *map, symbol_filter_t filter) { - if (dso__load_all_kallsyms(self, filename, map) < 0) + if (dso__load_all_kallsyms(dso, filename, map) < 0) return -1; - if (self->kernel == DSO_TYPE_GUEST_KERNEL) - self->symtab_type = SYMTAB__GUEST_KALLSYMS; + if (dso->kernel == DSO_TYPE_GUEST_KERNEL) + dso->symtab_type = SYMTAB__GUEST_KALLSYMS; else - self->symtab_type = SYMTAB__KALLSYMS; + dso->symtab_type = SYMTAB__KALLSYMS; - return dso__split_kallsyms(self, map, filter); + return dso__split_kallsyms(dso, map, filter); } -static int dso__load_perf_map(struct dso *self, struct map *map, +static int dso__load_perf_map(struct dso *dso, struct map *map, symbol_filter_t filter) { char *line = NULL; @@ -695,7 +698,7 @@ static int dso__load_perf_map(struct dso *self, struct map *map, FILE *file; int nr_syms = 0; - file = fopen(self->long_name, "r"); + file = fopen(dso->long_name, "r"); if (file == NULL) goto out_failure; @@ -733,7 +736,7 @@ static int dso__load_perf_map(struct dso *self, struct map *map, if (filter && filter(map, sym)) symbol__delete(sym); else { - symbols__insert(&self->symbols[map->type], sym); + symbols__insert(&dso->symbols[map->type], sym); nr_syms++; } } @@ -752,7 +755,7 @@ out_failure: /** * elf_symtab__for_each_symbol - iterate thru all the symbols * - * @self: struct elf_symtab instance to iterate + * @syms: struct elf_symtab instance to iterate * @idx: uint32_t idx * @sym: GElf_Sym iterator */ @@ -852,7 +855,7 @@ static Elf_Scn *elf_section_by_name(Elf *elf, GElf_Ehdr *ep, * And always look at the original dso, not at debuginfo packages, that * have the PLT data stripped out (shdr_rel_plt.sh_type == SHT_NOBITS). */ -static int dso__synthesize_plt_symbols(struct dso *self, struct map *map, +static int dso__synthesize_plt_symbols(struct dso *dso, struct map *map, symbol_filter_t filter) { uint32_t nr_rel_entries, idx; @@ -871,7 +874,7 @@ static int dso__synthesize_plt_symbols(struct dso *self, struct map *map, char name[PATH_MAX]; snprintf(name, sizeof(name), "%s%s", - symbol_conf.symfs, self->long_name); + symbol_conf.symfs, dso->long_name); fd = open(name, O_RDONLY); if (fd < 0) goto out; @@ -947,7 +950,7 @@ static int dso__synthesize_plt_symbols(struct dso *self, struct map *map, if (filter && filter(map, f)) symbol__delete(f); else { - symbols__insert(&self->symbols[map->type], f); + symbols__insert(&dso->symbols[map->type], f); ++nr; } } @@ -969,7 +972,7 @@ static int dso__synthesize_plt_symbols(struct dso *self, struct map *map, if (filter && filter(map, f)) symbol__delete(f); else { - symbols__insert(&self->symbols[map->type], f); + symbols__insert(&dso->symbols[map->type], f); ++nr; } } @@ -985,29 +988,30 @@ out_close: return nr; out: pr_debug("%s: problems reading %s PLT info.\n", - __func__, self->long_name); + __func__, dso->long_name); return 0; } -static bool elf_sym__is_a(GElf_Sym *self, enum map_type type) +static bool elf_sym__is_a(GElf_Sym *sym, enum map_type type) { switch (type) { case MAP__FUNCTION: - return elf_sym__is_function(self); + return elf_sym__is_function(sym); case MAP__VARIABLE: - return elf_sym__is_object(self); + return elf_sym__is_object(sym); default: return false; } } -static bool elf_sec__is_a(GElf_Shdr *self, Elf_Data *secstrs, enum map_type type) +static bool elf_sec__is_a(GElf_Shdr *shdr, Elf_Data *secstrs, + enum map_type type) { switch (type) { case MAP__FUNCTION: - return elf_sec__is_text(self, secstrs); + return elf_sec__is_text(shdr, secstrs); case MAP__VARIABLE: - return elf_sec__is_data(self, secstrs); + return elf_sec__is_data(shdr, secstrs); default: return false; } @@ -1032,13 +1036,13 @@ static size_t elf_addr_to_index(Elf *elf, GElf_Addr addr) return -1; } -static int dso__load_sym(struct dso *self, struct map *map, const char *name, +static int dso__load_sym(struct dso *dso, struct map *map, const char *name, int fd, symbol_filter_t filter, int kmodule, int want_symtab) { - struct kmap *kmap = self->kernel ? map__kmap(map) : NULL; + struct kmap *kmap = dso->kernel ? map__kmap(map) : NULL; struct map *curr_map = map; - struct dso *curr_dso = self; + struct dso *curr_dso = dso; Elf_Data *symstrs, *secstrs; uint32_t nr_syms; int err = -1; @@ -1064,14 +1068,14 @@ static int dso__load_sym(struct dso *self, struct map *map, const char *name, } /* Always reject images with a mismatched build-id: */ - if (self->has_build_id) { + if (dso->has_build_id) { u8 build_id[BUILD_ID_SIZE]; if (elf_read_build_id(elf, build_id, BUILD_ID_SIZE) != BUILD_ID_SIZE) goto out_elf_end; - if (!dso__build_id_equal(self, build_id)) + if (!dso__build_id_equal(dso, build_id)) goto out_elf_end; } @@ -1112,13 +1116,14 @@ static int dso__load_sym(struct dso *self, struct map *map, const char *name, nr_syms = shdr.sh_size / shdr.sh_entsize; memset(&sym, 0, sizeof(sym)); - if (self->kernel == DSO_TYPE_USER) { - self->adjust_symbols = (ehdr.e_type == ET_EXEC || + if (dso->kernel == DSO_TYPE_USER) { + dso->adjust_symbols = (ehdr.e_type == ET_EXEC || elf_section_by_name(elf, &ehdr, &shdr, ".gnu.prelink_undo", NULL) != NULL); - } else self->adjust_symbols = 0; - + } else { + dso->adjust_symbols = 0; + } elf_symtab__for_each_symbol(syms, nr_syms, idx, sym) { struct symbol *f; const char *elf_name = elf_sym__name(&sym, symstrs); @@ -1168,22 +1173,22 @@ static int dso__load_sym(struct dso *self, struct map *map, const char *name, (sym.st_value & 1)) --sym.st_value; - if (self->kernel != DSO_TYPE_USER || kmodule) { + if (dso->kernel != DSO_TYPE_USER || kmodule) { char dso_name[PATH_MAX]; if (strcmp(section_name, (curr_dso->short_name + - self->short_name_len)) == 0) + dso->short_name_len)) == 0) goto new_symbol; if (strcmp(section_name, ".text") == 0) { curr_map = map; - curr_dso = self; + curr_dso = dso; goto new_symbol; } snprintf(dso_name, sizeof(dso_name), - "%s%s", self->short_name, section_name); + "%s%s", dso->short_name, section_name); curr_map = map_groups__find_by_name(kmap->kmaps, map->type, dso_name); if (curr_map == NULL) { @@ -1195,9 +1200,9 @@ static int dso__load_sym(struct dso *self, struct map *map, const char *name, curr_dso = dso__new(dso_name); if (curr_dso == NULL) goto out_elf_end; - curr_dso->kernel = self->kernel; - curr_dso->long_name = self->long_name; - curr_dso->long_name_len = self->long_name_len; + curr_dso->kernel = dso->kernel; + curr_dso->long_name = dso->long_name; + curr_dso->long_name_len = dso->long_name_len; curr_map = map__new2(start, curr_dso, map->type); if (curr_map == NULL) { @@ -1206,9 +1211,9 @@ static int dso__load_sym(struct dso *self, struct map *map, const char *name, } curr_map->map_ip = identity__map_ip; curr_map->unmap_ip = identity__map_ip; - curr_dso->symtab_type = self->symtab_type; + curr_dso->symtab_type = dso->symtab_type; map_groups__insert(kmap->kmaps, curr_map); - dsos__add(&self->node, curr_dso); + dsos__add(&dso->node, curr_dso); dso__set_loaded(curr_dso, map->type); } else curr_dso = curr_map->dso; @@ -1250,7 +1255,7 @@ new_symbol: * For misannotated, zeroed, ASM function sizes. */ if (nr > 0) { - symbols__fixup_end(&self->symbols[map->type]); + symbols__fixup_end(&dso->symbols[map->type]); if (kmap) { /* * We need to fixup this here too because we create new @@ -1266,9 +1271,9 @@ out_close: return err; } -static bool dso__build_id_equal(const struct dso *self, u8 *build_id) +static bool dso__build_id_equal(const struct dso *dso, u8 *build_id) { - return memcmp(self->build_id, build_id, sizeof(self->build_id)) == 0; + return memcmp(dso->build_id, build_id, sizeof(dso->build_id)) == 0; } bool __dsos__read_build_ids(struct list_head *head, bool with_hits) @@ -1429,7 +1434,7 @@ out: return err; } -char dso__symtab_origin(const struct dso *self) +char dso__symtab_origin(const struct dso *dso) { static const char origin[] = { [SYMTAB__KALLSYMS] = 'k', @@ -1444,12 +1449,12 @@ char dso__symtab_origin(const struct dso *self) [SYMTAB__GUEST_KMODULE] = 'G', }; - if (self == NULL || self->symtab_type == SYMTAB__NOT_FOUND) + if (dso == NULL || dso->symtab_type == SYMTAB__NOT_FOUND) return '!'; - return origin[self->symtab_type]; + return origin[dso->symtab_type]; } -int dso__load(struct dso *self, struct map *map, symbol_filter_t filter) +int dso__load(struct dso *dso, struct map *map, symbol_filter_t filter) { int size = PATH_MAX; char *name; @@ -1459,12 +1464,12 @@ int dso__load(struct dso *self, struct map *map, symbol_filter_t filter) const char *root_dir; int want_symtab; - dso__set_loaded(self, map->type); + dso__set_loaded(dso, map->type); - if (self->kernel == DSO_TYPE_KERNEL) - return dso__load_kernel_sym(self, map, filter); - else if (self->kernel == DSO_TYPE_GUEST_KERNEL) - return dso__load_guest_kernel_sym(self, map, filter); + if (dso->kernel == DSO_TYPE_KERNEL) + return dso__load_kernel_sym(dso, map, filter); + else if (dso->kernel == DSO_TYPE_GUEST_KERNEL) + return dso__load_guest_kernel_sym(dso, map, filter); if (map->groups && map->groups->machine) machine = map->groups->machine; @@ -1475,11 +1480,11 @@ int dso__load(struct dso *self, struct map *map, symbol_filter_t filter) if (!name) return -1; - self->adjust_symbols = 0; + dso->adjust_symbols = 0; - if (strncmp(self->name, "/tmp/perf-", 10) == 0) { - ret = dso__load_perf_map(self, map, filter); - self->symtab_type = ret > 0 ? SYMTAB__JAVA_JIT : + if (strncmp(dso->name, "/tmp/perf-", 10) == 0) { + ret = dso__load_perf_map(dso, map, filter); + dso->symtab_type = ret > 0 ? SYMTAB__JAVA_JIT : SYMTAB__NOT_FOUND; return ret; } @@ -1490,33 +1495,33 @@ int dso__load(struct dso *self, struct map *map, symbol_filter_t filter) */ want_symtab = 1; restart: - for (self->symtab_type = SYMTAB__BUILD_ID_CACHE; - self->symtab_type != SYMTAB__NOT_FOUND; - self->symtab_type++) { - switch (self->symtab_type) { + for (dso->symtab_type = SYMTAB__BUILD_ID_CACHE; + dso->symtab_type != SYMTAB__NOT_FOUND; + dso->symtab_type++) { + switch (dso->symtab_type) { case SYMTAB__BUILD_ID_CACHE: /* skip the locally configured cache if a symfs is given */ if (symbol_conf.symfs[0] || - (dso__build_id_filename(self, name, size) == NULL)) { + (dso__build_id_filename(dso, name, size) == NULL)) { continue; } break; case SYMTAB__FEDORA_DEBUGINFO: snprintf(name, size, "%s/usr/lib/debug%s.debug", - symbol_conf.symfs, self->long_name); + symbol_conf.symfs, dso->long_name); break; case SYMTAB__UBUNTU_DEBUGINFO: snprintf(name, size, "%s/usr/lib/debug%s", - symbol_conf.symfs, self->long_name); + symbol_conf.symfs, dso->long_name); break; case SYMTAB__BUILDID_DEBUGINFO: { char build_id_hex[BUILD_ID_SIZE * 2 + 1]; - if (!self->has_build_id) + if (!dso->has_build_id) continue; - build_id__sprintf(self->build_id, - sizeof(self->build_id), + build_id__sprintf(dso->build_id, + sizeof(dso->build_id), build_id_hex); snprintf(name, size, "%s/usr/lib/debug/.build-id/%.2s/%s.debug", @@ -1525,7 +1530,7 @@ restart: break; case SYMTAB__SYSTEM_PATH_DSO: snprintf(name, size, "%s%s", - symbol_conf.symfs, self->long_name); + symbol_conf.symfs, dso->long_name); break; case SYMTAB__GUEST_KMODULE: if (map->groups && machine) @@ -1533,12 +1538,12 @@ restart: else root_dir = ""; snprintf(name, size, "%s%s%s", symbol_conf.symfs, - root_dir, self->long_name); + root_dir, dso->long_name); break; case SYMTAB__SYSTEM_PATH_KMODULE: snprintf(name, size, "%s%s", symbol_conf.symfs, - self->long_name); + dso->long_name); break; default:; } @@ -1548,7 +1553,7 @@ restart: if (fd < 0) continue; - ret = dso__load_sym(self, map, name, fd, filter, 0, + ret = dso__load_sym(dso, map, name, fd, filter, 0, want_symtab); close(fd); @@ -1560,7 +1565,8 @@ restart: continue; if (ret > 0) { - int nr_plt = dso__synthesize_plt_symbols(self, map, filter); + int nr_plt = dso__synthesize_plt_symbols(dso, map, + filter); if (nr_plt > 0) ret += nr_plt; break; @@ -1577,17 +1583,17 @@ restart: } free(name); - if (ret < 0 && strstr(self->name, " (deleted)") != NULL) + if (ret < 0 && strstr(dso->name, " (deleted)") != NULL) return 0; return ret; } -struct map *map_groups__find_by_name(struct map_groups *self, +struct map *map_groups__find_by_name(struct map_groups *mg, enum map_type type, const char *name) { struct rb_node *nd; - for (nd = rb_first(&self->maps[type]); nd; nd = rb_next(nd)) { + for (nd = rb_first(&mg->maps[type]); nd; nd = rb_next(nd)) { struct map *map = rb_entry(nd, struct map, rb_node); if (map->dso && strcmp(map->dso->short_name, name) == 0) @@ -1597,28 +1603,28 @@ struct map *map_groups__find_by_name(struct map_groups *self, return NULL; } -static int dso__kernel_module_get_build_id(struct dso *self, - const char *root_dir) +static int dso__kernel_module_get_build_id(struct dso *dso, + const char *root_dir) { char filename[PATH_MAX]; /* * kernel module short names are of the form "[module]" and * we need just "module" here. */ - const char *name = self->short_name + 1; + const char *name = dso->short_name + 1; snprintf(filename, sizeof(filename), "%s/sys/module/%.*s/notes/.note.gnu.build-id", root_dir, (int)strlen(name) - 1, name); - if (sysfs__read_build_id(filename, self->build_id, - sizeof(self->build_id)) == 0) - self->has_build_id = true; + if (sysfs__read_build_id(filename, dso->build_id, + sizeof(dso->build_id)) == 0) + dso->has_build_id = true; return 0; } -static int map_groups__set_modules_path_dir(struct map_groups *self, +static int map_groups__set_modules_path_dir(struct map_groups *mg, const char *dir_name) { struct dirent *dent; @@ -1646,7 +1652,7 @@ static int map_groups__set_modules_path_dir(struct map_groups *self, snprintf(path, sizeof(path), "%s/%s", dir_name, dent->d_name); - ret = map_groups__set_modules_path_dir(self, path); + ret = map_groups__set_modules_path_dir(mg, path); if (ret < 0) goto out; } else { @@ -1661,7 +1667,8 @@ static int map_groups__set_modules_path_dir(struct map_groups *self, (int)(dot - dent->d_name), dent->d_name); strxfrchar(dso_name, '-', '_'); - map = map_groups__find_by_name(self, MAP__FUNCTION, dso_name); + map = map_groups__find_by_name(mg, MAP__FUNCTION, + dso_name); if (map == NULL) continue; @@ -1711,20 +1718,20 @@ static char *get_kernel_version(const char *root_dir) return strdup(name); } -static int machine__set_modules_path(struct machine *self) +static int machine__set_modules_path(struct machine *machine) { char *version; char modules_path[PATH_MAX]; - version = get_kernel_version(self->root_dir); + version = get_kernel_version(machine->root_dir); if (!version) return -1; snprintf(modules_path, sizeof(modules_path), "%s/lib/modules/%s/kernel", - self->root_dir, version); + machine->root_dir, version); free(version); - return map_groups__set_modules_path_dir(&self->kmaps, modules_path); + return map_groups__set_modules_path_dir(&machine->kmaps, modules_path); } /* @@ -1734,23 +1741,23 @@ static int machine__set_modules_path(struct machine *self) */ static struct map *map__new2(u64 start, struct dso *dso, enum map_type type) { - struct map *self = calloc(1, (sizeof(*self) + - (dso->kernel ? sizeof(struct kmap) : 0))); - if (self != NULL) { + struct map *map = calloc(1, (sizeof(*map) + + (dso->kernel ? sizeof(struct kmap) : 0))); + if (map != NULL) { /* * ->end will be filled after we load all the symbols */ - map__init(self, type, start, 0, 0, dso); + map__init(map, type, start, 0, 0, dso); } - return self; + return map; } -struct map *machine__new_module(struct machine *self, u64 start, +struct map *machine__new_module(struct machine *machine, u64 start, const char *filename) { struct map *map; - struct dso *dso = __dsos__findnew(&self->kernel_dsos, filename); + struct dso *dso = __dsos__findnew(&machine->kernel_dsos, filename); if (dso == NULL) return NULL; @@ -1759,15 +1766,15 @@ struct map *machine__new_module(struct machine *self, u64 start, if (map == NULL) return NULL; - if (machine__is_host(self)) + if (machine__is_host(machine)) dso->symtab_type = SYMTAB__SYSTEM_PATH_KMODULE; else dso->symtab_type = SYMTAB__GUEST_KMODULE; - map_groups__insert(&self->kmaps, map); + map_groups__insert(&machine->kmaps, map); return map; } -static int machine__create_modules(struct machine *self) +static int machine__create_modules(struct machine *machine) { char *line = NULL; size_t n; @@ -1776,10 +1783,10 @@ static int machine__create_modules(struct machine *self) const char *modules; char path[PATH_MAX]; - if (machine__is_default_guest(self)) + if (machine__is_default_guest(machine)) modules = symbol_conf.default_guest_modules; else { - sprintf(path, "%s/proc/modules", self->root_dir); + sprintf(path, "%s/proc/modules", machine->root_dir); modules = path; } @@ -1815,16 +1822,16 @@ static int machine__create_modules(struct machine *self) *sep = '\0'; snprintf(name, sizeof(name), "[%s]", line); - map = machine__new_module(self, start, name); + map = machine__new_module(machine, start, name); if (map == NULL) goto out_delete_line; - dso__kernel_module_get_build_id(map->dso, self->root_dir); + dso__kernel_module_get_build_id(map->dso, machine->root_dir); } free(line); fclose(file); - return machine__set_modules_path(self); + return machine__set_modules_path(machine); out_delete_line: free(line); @@ -1832,7 +1839,7 @@ out_failure: return -1; } -int dso__load_vmlinux(struct dso *self, struct map *map, +int dso__load_vmlinux(struct dso *dso, struct map *map, const char *vmlinux, symbol_filter_t filter) { int err = -1, fd; @@ -1844,9 +1851,9 @@ int dso__load_vmlinux(struct dso *self, struct map *map, if (fd < 0) return -1; - dso__set_long_name(self, (char *)vmlinux); - dso__set_loaded(self, map->type); - err = dso__load_sym(self, map, symfs_vmlinux, fd, filter, 0, 0); + dso__set_long_name(dso, (char *)vmlinux); + dso__set_loaded(dso, map->type); + err = dso__load_sym(dso, map, symfs_vmlinux, fd, filter, 0, 0); close(fd); if (err > 0) @@ -1855,7 +1862,7 @@ int dso__load_vmlinux(struct dso *self, struct map *map, return err; } -int dso__load_vmlinux_path(struct dso *self, struct map *map, +int dso__load_vmlinux_path(struct dso *dso, struct map *map, symbol_filter_t filter) { int i, err = 0; @@ -1864,20 +1871,20 @@ int dso__load_vmlinux_path(struct dso *self, struct map *map, pr_debug("Looking at the vmlinux_path (%d entries long)\n", vmlinux_path__nr_entries + 1); - filename = dso__build_id_filename(self, NULL, 0); + filename = dso__build_id_filename(dso, NULL, 0); if (filename != NULL) { - err = dso__load_vmlinux(self, map, filename, filter); + err = dso__load_vmlinux(dso, map, filename, filter); if (err > 0) { - dso__set_long_name(self, filename); + dso__set_long_name(dso, filename); goto out; } free(filename); } for (i = 0; i < vmlinux_path__nr_entries; ++i) { - err = dso__load_vmlinux(self, map, vmlinux_path[i], filter); + err = dso__load_vmlinux(dso, map, vmlinux_path[i], filter); if (err > 0) { - dso__set_long_name(self, strdup(vmlinux_path[i])); + dso__set_long_name(dso, strdup(vmlinux_path[i])); break; } } @@ -1885,7 +1892,7 @@ out: return err; } -static int dso__load_kernel_sym(struct dso *self, struct map *map, +static int dso__load_kernel_sym(struct dso *dso, struct map *map, symbol_filter_t filter) { int err; @@ -1912,10 +1919,10 @@ static int dso__load_kernel_sym(struct dso *self, struct map *map, } if (symbol_conf.vmlinux_name != NULL) { - err = dso__load_vmlinux(self, map, + err = dso__load_vmlinux(dso, map, symbol_conf.vmlinux_name, filter); if (err > 0) { - dso__set_long_name(self, + dso__set_long_name(dso, strdup(symbol_conf.vmlinux_name)); goto out_fixup; } @@ -1923,7 +1930,7 @@ static int dso__load_kernel_sym(struct dso *self, struct map *map, } if (vmlinux_path != NULL) { - err = dso__load_vmlinux_path(self, map, filter); + err = dso__load_vmlinux_path(dso, map, filter); if (err > 0) goto out_fixup; } @@ -1937,13 +1944,13 @@ static int dso__load_kernel_sym(struct dso *self, struct map *map, * we have a build-id, so check if it is the same as the running kernel, * using it if it is. */ - if (self->has_build_id) { + if (dso->has_build_id) { u8 kallsyms_build_id[BUILD_ID_SIZE]; char sbuild_id[BUILD_ID_SIZE * 2 + 1]; if (sysfs__read_build_id("/sys/kernel/notes", kallsyms_build_id, sizeof(kallsyms_build_id)) == 0) { - if (dso__build_id_equal(self, kallsyms_build_id)) { + if (dso__build_id_equal(dso, kallsyms_build_id)) { kallsyms_filename = "/proc/kallsyms"; goto do_kallsyms; } @@ -1952,7 +1959,7 @@ static int dso__load_kernel_sym(struct dso *self, struct map *map, * Now look if we have it on the build-id cache in * $HOME/.debug/[kernel.kallsyms]. */ - build_id__sprintf(self->build_id, sizeof(self->build_id), + build_id__sprintf(dso->build_id, sizeof(dso->build_id), sbuild_id); if (asprintf(&kallsyms_allocated_filename, @@ -1979,7 +1986,7 @@ static int dso__load_kernel_sym(struct dso *self, struct map *map, } do_kallsyms: - err = dso__load_kallsyms(self, kallsyms_filename, map, filter); + err = dso__load_kallsyms(dso, kallsyms_filename, map, filter); if (err > 0) pr_debug("Using %s for symbols\n", kallsyms_filename); free(kallsyms_allocated_filename); @@ -1987,7 +1994,7 @@ do_kallsyms: if (err > 0) { out_fixup: if (kallsyms_filename != NULL) - dso__set_long_name(self, strdup("[kernel.kallsyms]")); + dso__set_long_name(dso, strdup("[kernel.kallsyms]")); map__fixup_start(map); map__fixup_end(map); } @@ -1995,8 +2002,8 @@ out_fixup: return err; } -static int dso__load_guest_kernel_sym(struct dso *self, struct map *map, - symbol_filter_t filter) +static int dso__load_guest_kernel_sym(struct dso *dso, struct map *map, + symbol_filter_t filter) { int err; const char *kallsyms_filename = NULL; @@ -2016,7 +2023,7 @@ static int dso__load_guest_kernel_sym(struct dso *self, struct map *map, * Or use file guest_kallsyms inputted by user on commandline */ if (symbol_conf.default_guest_vmlinux_name != NULL) { - err = dso__load_vmlinux(self, map, + err = dso__load_vmlinux(dso, map, symbol_conf.default_guest_vmlinux_name, filter); goto out_try_fixup; } @@ -2029,7 +2036,7 @@ static int dso__load_guest_kernel_sym(struct dso *self, struct map *map, kallsyms_filename = path; } - err = dso__load_kallsyms(self, kallsyms_filename, map, filter); + err = dso__load_kallsyms(dso, kallsyms_filename, map, filter); if (err > 0) pr_debug("Using %s for symbols\n", kallsyms_filename); @@ -2037,7 +2044,7 @@ out_try_fixup: if (err > 0) { if (kallsyms_filename != NULL) { machine__mmap_name(machine, path, sizeof(path)); - dso__set_long_name(self, strdup(path)); + dso__set_long_name(dso, strdup(path)); } map__fixup_start(map); map__fixup_end(map); @@ -2090,12 +2097,12 @@ size_t __dsos__fprintf(struct list_head *head, FILE *fp) return ret; } -size_t machines__fprintf_dsos(struct rb_root *self, FILE *fp) +size_t machines__fprintf_dsos(struct rb_root *machines, FILE *fp) { struct rb_node *nd; size_t ret = 0; - for (nd = rb_first(self); nd; nd = rb_next(nd)) { + for (nd = rb_first(machines); nd; nd = rb_next(nd)) { struct machine *pos = rb_entry(nd, struct machine, rb_node); ret += __dsos__fprintf(&pos->kernel_dsos, fp); ret += __dsos__fprintf(&pos->user_dsos, fp); @@ -2119,18 +2126,20 @@ static size_t __dsos__fprintf_buildid(struct list_head *head, FILE *fp, return ret; } -size_t machine__fprintf_dsos_buildid(struct machine *self, FILE *fp, bool with_hits) +size_t machine__fprintf_dsos_buildid(struct machine *machine, FILE *fp, + bool with_hits) { - return __dsos__fprintf_buildid(&self->kernel_dsos, fp, with_hits) + - __dsos__fprintf_buildid(&self->user_dsos, fp, with_hits); + return __dsos__fprintf_buildid(&machine->kernel_dsos, fp, with_hits) + + __dsos__fprintf_buildid(&machine->user_dsos, fp, with_hits); } -size_t machines__fprintf_dsos_buildid(struct rb_root *self, FILE *fp, bool with_hits) +size_t machines__fprintf_dsos_buildid(struct rb_root *machines, + FILE *fp, bool with_hits) { struct rb_node *nd; size_t ret = 0; - for (nd = rb_first(self); nd; nd = rb_next(nd)) { + for (nd = rb_first(machines); nd; nd = rb_next(nd)) { struct machine *pos = rb_entry(nd, struct machine, rb_node); ret += machine__fprintf_dsos_buildid(pos, fp, with_hits); } @@ -2139,59 +2148,59 @@ size_t machines__fprintf_dsos_buildid(struct rb_root *self, FILE *fp, bool with_ struct dso *dso__new_kernel(const char *name) { - struct dso *self = dso__new(name ?: "[kernel.kallsyms]"); + struct dso *dso = dso__new(name ?: "[kernel.kallsyms]"); - if (self != NULL) { - dso__set_short_name(self, "[kernel]"); - self->kernel = DSO_TYPE_KERNEL; + if (dso != NULL) { + dso__set_short_name(dso, "[kernel]"); + dso->kernel = DSO_TYPE_KERNEL; } - return self; + return dso; } static struct dso *dso__new_guest_kernel(struct machine *machine, const char *name) { char bf[PATH_MAX]; - struct dso *self = dso__new(name ?: machine__mmap_name(machine, bf, sizeof(bf))); - - if (self != NULL) { - dso__set_short_name(self, "[guest.kernel]"); - self->kernel = DSO_TYPE_GUEST_KERNEL; + struct dso *dso = dso__new(name ?: machine__mmap_name(machine, bf, + sizeof(bf))); + if (dso != NULL) { + dso__set_short_name(dso, "[guest.kernel]"); + dso->kernel = DSO_TYPE_GUEST_KERNEL; } - return self; + return dso; } -void dso__read_running_kernel_build_id(struct dso *self, struct machine *machine) +void dso__read_running_kernel_build_id(struct dso *dso, struct machine *machine) { char path[PATH_MAX]; if (machine__is_default_guest(machine)) return; sprintf(path, "%s/sys/kernel/notes", machine->root_dir); - if (sysfs__read_build_id(path, self->build_id, - sizeof(self->build_id)) == 0) - self->has_build_id = true; + if (sysfs__read_build_id(path, dso->build_id, + sizeof(dso->build_id)) == 0) + dso->has_build_id = true; } -static struct dso *machine__create_kernel(struct machine *self) +static struct dso *machine__create_kernel(struct machine *machine) { const char *vmlinux_name = NULL; struct dso *kernel; - if (machine__is_host(self)) { + if (machine__is_host(machine)) { vmlinux_name = symbol_conf.vmlinux_name; kernel = dso__new_kernel(vmlinux_name); } else { - if (machine__is_default_guest(self)) + if (machine__is_default_guest(machine)) vmlinux_name = symbol_conf.default_guest_vmlinux_name; - kernel = dso__new_guest_kernel(self, vmlinux_name); + kernel = dso__new_guest_kernel(machine, vmlinux_name); } if (kernel != NULL) { - dso__read_running_kernel_build_id(kernel, self); - dsos__add(&self->kernel_dsos, kernel); + dso__read_running_kernel_build_id(kernel, machine); + dsos__add(&machine->kernel_dsos, kernel); } return kernel; } @@ -2236,41 +2245,43 @@ static u64 machine__get_kernel_start_addr(struct machine *machine) return args.start; } -int __machine__create_kernel_maps(struct machine *self, struct dso *kernel) +int __machine__create_kernel_maps(struct machine *machine, struct dso *kernel) { enum map_type type; - u64 start = machine__get_kernel_start_addr(self); + u64 start = machine__get_kernel_start_addr(machine); for (type = 0; type < MAP__NR_TYPES; ++type) { struct kmap *kmap; - self->vmlinux_maps[type] = map__new2(start, kernel, type); - if (self->vmlinux_maps[type] == NULL) + machine->vmlinux_maps[type] = map__new2(start, kernel, type); + if (machine->vmlinux_maps[type] == NULL) return -1; - self->vmlinux_maps[type]->map_ip = - self->vmlinux_maps[type]->unmap_ip = identity__map_ip; - - kmap = map__kmap(self->vmlinux_maps[type]); - kmap->kmaps = &self->kmaps; - map_groups__insert(&self->kmaps, self->vmlinux_maps[type]); + machine->vmlinux_maps[type]->map_ip = + machine->vmlinux_maps[type]->unmap_ip = + identity__map_ip; + kmap = map__kmap(machine->vmlinux_maps[type]); + kmap->kmaps = &machine->kmaps; + map_groups__insert(&machine->kmaps, + machine->vmlinux_maps[type]); } return 0; } -void machine__destroy_kernel_maps(struct machine *self) +void machine__destroy_kernel_maps(struct machine *machine) { enum map_type type; for (type = 0; type < MAP__NR_TYPES; ++type) { struct kmap *kmap; - if (self->vmlinux_maps[type] == NULL) + if (machine->vmlinux_maps[type] == NULL) continue; - kmap = map__kmap(self->vmlinux_maps[type]); - map_groups__remove(&self->kmaps, self->vmlinux_maps[type]); + kmap = map__kmap(machine->vmlinux_maps[type]); + map_groups__remove(&machine->kmaps, + machine->vmlinux_maps[type]); if (kmap->ref_reloc_sym) { /* * ref_reloc_sym is shared among all maps, so free just @@ -2284,25 +2295,25 @@ void machine__destroy_kernel_maps(struct machine *self) kmap->ref_reloc_sym = NULL; } - map__delete(self->vmlinux_maps[type]); - self->vmlinux_maps[type] = NULL; + map__delete(machine->vmlinux_maps[type]); + machine->vmlinux_maps[type] = NULL; } } -int machine__create_kernel_maps(struct machine *self) +int machine__create_kernel_maps(struct machine *machine) { - struct dso *kernel = machine__create_kernel(self); + struct dso *kernel = machine__create_kernel(machine); if (kernel == NULL || - __machine__create_kernel_maps(self, kernel) < 0) + __machine__create_kernel_maps(machine, kernel) < 0) return -1; - if (symbol_conf.use_modules && machine__create_modules(self) < 0) + if (symbol_conf.use_modules && machine__create_modules(machine) < 0) pr_debug("Problems creating module maps, continuing anyway...\n"); /* * Now that we have all the maps created, just set the ->end of them: */ - map_groups__fixup_end(&self->kmaps); + map_groups__fixup_end(&machine->kmaps); return 0; } @@ -2366,11 +2377,11 @@ out_fail: return -1; } -size_t machine__fprintf_vmlinux_path(struct machine *self, FILE *fp) +size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp) { int i; size_t printed = 0; - struct dso *kdso = self->vmlinux_maps[MAP__FUNCTION]->dso; + struct dso *kdso = machine->vmlinux_maps[MAP__FUNCTION]->dso; if (kdso->has_build_id) { char filename[PATH_MAX]; @@ -2467,9 +2478,9 @@ void symbol__exit(void) symbol_conf.initialized = false; } -int machines__create_kernel_maps(struct rb_root *self, pid_t pid) +int machines__create_kernel_maps(struct rb_root *machines, pid_t pid) { - struct machine *machine = machines__findnew(self, pid); + struct machine *machine = machines__findnew(machines, pid); if (machine == NULL) return -1; @@ -2520,7 +2531,7 @@ char *strxfrchar(char *s, char from, char to) return s; } -int machines__create_guest_kernel_maps(struct rb_root *self) +int machines__create_guest_kernel_maps(struct rb_root *machines) { int ret = 0; struct dirent **namelist = NULL; @@ -2531,7 +2542,7 @@ int machines__create_guest_kernel_maps(struct rb_root *self) if (symbol_conf.default_guest_vmlinux_name || symbol_conf.default_guest_modules || symbol_conf.default_guest_kallsyms) { - machines__create_kernel_maps(self, DEFAULT_GUEST_KERNEL_ID); + machines__create_kernel_maps(machines, DEFAULT_GUEST_KERNEL_ID); } if (symbol_conf.guestmount) { @@ -2552,7 +2563,7 @@ int machines__create_guest_kernel_maps(struct rb_root *self) pr_debug("Can't access file %s\n", path); goto failure; } - machines__create_kernel_maps(self, pid); + machines__create_kernel_maps(machines, pid); } failure: free(namelist); @@ -2561,23 +2572,23 @@ failure: return ret; } -void machines__destroy_guest_kernel_maps(struct rb_root *self) +void machines__destroy_guest_kernel_maps(struct rb_root *machines) { - struct rb_node *next = rb_first(self); + struct rb_node *next = rb_first(machines); while (next) { struct machine *pos = rb_entry(next, struct machine, rb_node); next = rb_next(&pos->rb_node); - rb_erase(&pos->rb_node, self); + rb_erase(&pos->rb_node, machines); machine__delete(pos); } } -int machine__load_kallsyms(struct machine *self, const char *filename, +int machine__load_kallsyms(struct machine *machine, const char *filename, enum map_type type, symbol_filter_t filter) { - struct map *map = self->vmlinux_maps[type]; + struct map *map = machine->vmlinux_maps[type]; int ret = dso__load_kallsyms(map->dso, filename, map, filter); if (ret > 0) { @@ -2587,16 +2598,16 @@ int machine__load_kallsyms(struct machine *self, const char *filename, * kernel, with modules between them, fixup the end of all * sections. */ - __map_groups__fixup_end(&self->kmaps, type); + __map_groups__fixup_end(&machine->kmaps, type); } return ret; } -int machine__load_vmlinux_path(struct machine *self, enum map_type type, +int machine__load_vmlinux_path(struct machine *machine, enum map_type type, symbol_filter_t filter) { - struct map *map = self->vmlinux_maps[type]; + struct map *map = machine->vmlinux_maps[type]; int ret = dso__load_vmlinux_path(map->dso, map, filter); if (ret > 0) { diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h index 713b0b40cc4..242de0101a8 100644 --- a/tools/perf/util/symbol.h +++ b/tools/perf/util/symbol.h @@ -62,7 +62,7 @@ struct symbol { char name[0]; }; -void symbol__delete(struct symbol *self); +void symbol__delete(struct symbol *sym); struct strlist; @@ -96,9 +96,9 @@ struct symbol_conf { extern struct symbol_conf symbol_conf; -static inline void *symbol__priv(struct symbol *self) +static inline void *symbol__priv(struct symbol *sym) { - return ((void *)self) - symbol_conf.priv_size; + return ((void *)sym) - symbol_conf.priv_size; } struct ref_reloc_sym { @@ -155,43 +155,45 @@ struct dso { struct dso *dso__new(const char *name); struct dso *dso__new_kernel(const char *name); -void dso__delete(struct dso *self); +void dso__delete(struct dso *dso); -int dso__name_len(const struct dso *self); +int dso__name_len(const struct dso *dso); -bool dso__loaded(const struct dso *self, enum map_type type); -bool dso__sorted_by_name(const struct dso *self, enum map_type type); +bool dso__loaded(const struct dso *dso, enum map_type type); +bool dso__sorted_by_name(const struct dso *dso, enum map_type type); -static inline void dso__set_loaded(struct dso *self, enum map_type type) +static inline void dso__set_loaded(struct dso *dso, enum map_type type) { - self->loaded |= (1 << type); + dso->loaded |= (1 << type); } -void dso__sort_by_name(struct dso *self, enum map_type type); +void dso__sort_by_name(struct dso *dso, enum map_type type); struct dso *__dsos__findnew(struct list_head *head, const char *name); -int dso__load(struct dso *self, struct map *map, symbol_filter_t filter); -int dso__load_vmlinux(struct dso *self, struct map *map, +int dso__load(struct dso *dso, struct map *map, symbol_filter_t filter); +int dso__load_vmlinux(struct dso *dso, struct map *map, const char *vmlinux, symbol_filter_t filter); -int dso__load_vmlinux_path(struct dso *self, struct map *map, +int dso__load_vmlinux_path(struct dso *dso, struct map *map, symbol_filter_t filter); -int dso__load_kallsyms(struct dso *self, const char *filename, struct map *map, +int dso__load_kallsyms(struct dso *dso, const char *filename, struct map *map, symbol_filter_t filter); -int machine__load_kallsyms(struct machine *self, const char *filename, +int machine__load_kallsyms(struct machine *machine, const char *filename, enum map_type type, symbol_filter_t filter); -int machine__load_vmlinux_path(struct machine *self, enum map_type type, +int machine__load_vmlinux_path(struct machine *machine, enum map_type type, symbol_filter_t filter); size_t __dsos__fprintf(struct list_head *head, FILE *fp); -size_t machine__fprintf_dsos_buildid(struct machine *self, FILE *fp, bool with_hits); -size_t machines__fprintf_dsos(struct rb_root *self, FILE *fp); -size_t machines__fprintf_dsos_buildid(struct rb_root *self, FILE *fp, bool with_hits); - -size_t dso__fprintf_buildid(struct dso *self, FILE *fp); -size_t dso__fprintf_symbols_by_name(struct dso *self, enum map_type type, FILE *fp); -size_t dso__fprintf(struct dso *self, enum map_type type, FILE *fp); +size_t machine__fprintf_dsos_buildid(struct machine *machine, + FILE *fp, bool with_hits); +size_t machines__fprintf_dsos(struct rb_root *machines, FILE *fp); +size_t machines__fprintf_dsos_buildid(struct rb_root *machines, + FILE *fp, bool with_hits); +size_t dso__fprintf_buildid(struct dso *dso, FILE *fp); +size_t dso__fprintf_symbols_by_name(struct dso *dso, + enum map_type type, FILE *fp); +size_t dso__fprintf(struct dso *dso, enum map_type type, FILE *fp); enum symtab_type { SYMTAB__KALLSYMS = 0, @@ -207,34 +209,36 @@ enum symtab_type { SYMTAB__NOT_FOUND, }; -char dso__symtab_origin(const struct dso *self); -void dso__set_long_name(struct dso *self, char *name); -void dso__set_build_id(struct dso *self, void *build_id); -void dso__read_running_kernel_build_id(struct dso *self, struct machine *machine); -struct symbol *dso__find_symbol(struct dso *self, enum map_type type, u64 addr); -struct symbol *dso__find_symbol_by_name(struct dso *self, enum map_type type, +char dso__symtab_origin(const struct dso *dso); +void dso__set_long_name(struct dso *dso, char *name); +void dso__set_build_id(struct dso *dso, void *build_id); +void dso__read_running_kernel_build_id(struct dso *dso, + struct machine *machine); +struct symbol *dso__find_symbol(struct dso *dso, enum map_type type, + u64 addr); +struct symbol *dso__find_symbol_by_name(struct dso *dso, enum map_type type, const char *name); int filename__read_build_id(const char *filename, void *bf, size_t size); int sysfs__read_build_id(const char *filename, void *bf, size_t size); bool __dsos__read_build_ids(struct list_head *head, bool with_hits); -int build_id__sprintf(const u8 *self, int len, char *bf); +int build_id__sprintf(const u8 *build_id, int len, char *bf); int kallsyms__parse(const char *filename, void *arg, int (*process_symbol)(void *arg, const char *name, char type, u64 start, u64 end)); -void machine__destroy_kernel_maps(struct machine *self); -int __machine__create_kernel_maps(struct machine *self, struct dso *kernel); -int machine__create_kernel_maps(struct machine *self); +void machine__destroy_kernel_maps(struct machine *machine); +int __machine__create_kernel_maps(struct machine *machine, struct dso *kernel); +int machine__create_kernel_maps(struct machine *machine); -int machines__create_kernel_maps(struct rb_root *self, pid_t pid); -int machines__create_guest_kernel_maps(struct rb_root *self); -void machines__destroy_guest_kernel_maps(struct rb_root *self); +int machines__create_kernel_maps(struct rb_root *machines, pid_t pid); +int machines__create_guest_kernel_maps(struct rb_root *machines); +void machines__destroy_guest_kernel_maps(struct rb_root *machines); int symbol__init(void); void symbol__exit(void); bool symbol_type__is_a(char symbol_type, enum map_type map_type); -size_t machine__fprintf_vmlinux_path(struct machine *self, FILE *fp); +size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp); #endif /* __PERF_SYMBOL */ |