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2013-06-29ARM: 7775/1: mm: Remove do_sect_fault from LPAE codeSteven Capper
For LPAE, do_sect_fault used to be invoked as the second level access flag handler. When transparent huge pages were introduced for LPAE, do_page_fault was used instead. Unfortunately, do_sect_fault remains defined but not used for LPAE code resulting in a compile warning. This patch surrounds do_sect_fault with #ifndef CONFIG_ARM_LPAE to fix this warning. Signed-off-by: Steve Capper <steve.capper@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-06-29ARM: 7777/1: Avoid extra calls to the C compilerDouglas Anderson
Starting up the C compiler can be a slow operation on some systems. Though these calls don't individually take a lot of time, they add up. Rearrange the ARM Makefile a bit to avoid extra calls to the compiler when they can be easily avoided. When running with the Chrome OS ARM cross compiler "armv7a-cros-linux-gnueabi-", this shaved .55 seconds (from 5.31 seconds to 4.76 seconds) off an incremental build of the kernel: time make -j32 ARCH=arm CROSS_COMPILE=armv7a-cros-linux-gnueabi- Thanks to Mike Frysinger for the clean trick to make this work. Signed-off-by: Doug Anderson <dianders@chromium.org> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-06-29ARM: 7774/1: Fix dtb dependency to use order-only prerequisitesDouglas Anderson
The %.dtb dependency is specified to depend on the PHONY "scripts". That means that it'll build every time even if the underlying dtb file hasn't been touched. Use an order-only prerequisites to fix this. Also mark "dtbs" as PHONY for correctness. This was broken in (70b0476 ARM: 7513/1: Make sure dtc is built before running it). Reported-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Doug Anderson <dianders@chromium.org> Acked-by: Olof Johansson <olof@lixom.net> Reviewed-by: David Brown <davidb@codeaurora.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-06-29consolidate io_remap_pfn_range definitionsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-06-28ARM: dma: Drop __GFP_COMP for iommu dma memory allocationsRichard Zhao
__iommu_alloc_buffer wants to split pages after allocation in order to reduce the memory footprint. This does not work well with __GFP_COMP pages, so drop this flag before allocation One failure example is snd_malloc_dev_pages call dma_alloc_coherent with __GFP_COMP. Signed-off-by: Richard Zhao <rizhao@nvidia.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
2013-06-28ARM: DMA-mapping: mark all !DMA_TO_DEVICE pages in unmapping as cleanMing Lei
It is common for one sg to include many pages, so mark all these pages as clean to avoid unnecessary flushing on them in set_pte_at() or update_mmu_cache(). The patch might improve loading performance of applciation code a bit. On the below test code to read file(~1GByte size) from usb mass storage disk to buffer created with mmap(PROT_READ | PROT_EXEC) on Pandaboard, average ~1% improvement can be observed with the patch on 10 times test. unsigned int sum = 0; static unsigned long tv_diff(struct timeval *tv1, struct timeval *tv2) { return (tv2->tv_sec - tv1->tv_sec) * 1000000 + (tv2->tv_usec - tv1->tv_usec); } int main(int argc, char *argv[]) { char *mbuffer; int fd; int i; unsigned long page_size, size; struct stat stat; struct timeval t1, t2; page_size = getpagesize(); fd = open(argv[1], O_RDONLY); assert(fd >= 0); fstat(fd, &stat); size = stat.st_size; printf("%s: file %s, file size %lu, page size %lu\n", argv[0], read_filename, size, page_size); gettimeofday(&t1, NULL); mbuffer = mmap(NULL, size, PROT_READ | PROT_EXEC, MAP_SHARED, fd, 0); for (i = 0 ; i < size ; i += page_size) sum += mbuffer[i]; munmap(mbuffer, page_size); gettimeofday(&t2, NULL); printf("\tread mmaped time: %luus\n", tv_diff(&t1, &t2)); close(fd); } Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Russell King <linux@arm.linux.org.uk> Signed-off-by: Ming Lei <ming.lei@canonical.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
2013-06-28ARM: dma-mapping: NULLify dev->archdata.mapping pointer on detachWill Deacon
The current code only clobbers a local variable, so the device is left with a stale mapping pointer. Cc: Hiroshi Doyu <hdoyu@nvidia.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Acked-by: Hiroshi Doyu <hdoyu@nvidia.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
2013-06-28ARM: dma-mapping: convert DMA direction into IOMMU protection attributesWill Deacon
IOMMU mappings take a prot parameter, identifying the protection bits to enforce on the newly created mapping (READ or WRITE). The ARM dma-mapping framework currently just passes 0 as the prot argument, resulting in faulting mappings. This patch infers the protection attributes based on the direction of the DMA transfer. Cc: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
2013-06-28ARM: dma-mapping: Get pages if the cpu_addr is out of atomic_poolYoungJun Cho
In __iommu_get_pages(), the cpu_addr is checked wheather in atomic_pool range or not. So if the cpu_addr is in atomic_pool range, it does not need to check twice. Signed-off-by: YoungJun Cho <yj44.cho@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
2013-06-28ARM: dts: change compatible strings for EXYNOS5250 hdmi subsystemRahul Sharma
This patch renames the combatible strings for hdmi, mixer, ddc and hdmiphy. It follows the convention of using compatible string which represent the SoC in which the IP was added for the first time. Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2013-06-28Merge branch 'pm-assorted'Rafael J. Wysocki
* pm-assorted: PM / QoS: Add pm_qos and dev_pm_qos to events-power.txt PM / QoS: Add dev_pm_qos_request tracepoints PM / QoS: Add pm_qos_request tracepoints PM / QoS: Add pm_qos_update_target/flags tracepoints PM / QoS: Update Documentation/power/pm_qos_interface.txt PM / Sleep: Print last wakeup source on failed wakeup_count write PM / QoS: correct the valid range of pm_qos_class PM / wakeup: Adjust messaging for wake events during suspend PM / Runtime: Update .runtime_idle() callback documentation PM / Runtime: Rework the "runtime idle" helper routine PM / Hibernate: print physical addresses consistently with other parts of kernel
2013-06-28Merge branch 'pm-cpufreq'Rafael J. Wysocki
* pm-cpufreq: (41 commits) cpufreq: tegra: call CPUFREQ_POSTCHANGE notfier in error cases cpufreq: s3c64xx: call CPUFREQ_POSTCHANGE notfier in error cases cpufreq: omap: call CPUFREQ_POSTCHANGE notfier in error cases cpufreq: imx6q: call CPUFREQ_POSTCHANGE notfier in error cases cpufreq: exynos: call CPUFREQ_POSTCHANGE notfier in error cases cpufreq: dbx500: call CPUFREQ_POSTCHANGE notfier in error cases cpufreq: davinci: call CPUFREQ_POSTCHANGE notfier in error cases cpufreq: arm-big-little: call CPUFREQ_POSTCHANGE notfier in error cases cpufreq: powernow-k8: call CPUFREQ_POSTCHANGE notfier in error cases cpufreq: pcc: call CPUFREQ_POSTCHANGE notfier in error cases cpufreq: e_powersaver: call CPUFREQ_POSTCHANGE notfier in error cases cpufreq: ACPI: call CPUFREQ_POSTCHANGE notfier in error cases cpufreq: s3c2416: fix forgotten driver_data conversions cpufreq: make __cpufreq_notify_transition() static cpufreq: Fix minor formatting issues cpufreq: Fix governor start/stop race condition cpufreq: Simplify userspace governor cpufreq: X86_AMD_FREQ_SENSITIVITY: select CPU_FREQ_TABLE cpufreq: tegra: create CONFIG_ARM_TEGRA_CPUFREQ cpufreq: S3C2416/S3C64XX: select CPU_FREQ_TABLE ...
2013-06-28Merge branch 'pm-omap'Rafael J. Wysocki
* pm-omap: PM / AVS: SmartReflex: use devm_* API to initialize SmartReflex PM / AVS: SmartReflex: use omap_sr * for enable/disable interface PM / AVS: SmartReflex: use omap_sr * for minmax interfaces PM / AVS: SmartReflex: use omap_sr * for errgen interfaces PM / AVS: SmartReflex: fix driver name PM / AVS: SmartReflex: disable runtime PM on driver remove PM / AVS: SmartReflex: disable errgen before vpbound disable
2013-06-28lib: Move fonts from drivers/video/console/ to lib/fonts/Geert Uytterhoeven
Several drivers need font support independent of CONFIG_VT, cfr. commit 9cbce8d7e1dae0744ca4f68d62aa7de18196b6f4, "console/font: Refactor font support code selection logic"). Hence move the fonts and their support logic from drivers/video/console/ to its own library directory lib/fonts/. This also allows to limit processing of drivers/video/console/Makefile to CONFIG_VT=y again. [Kevin Hilman <khilman@linaro.org>: Update arch/arm/boot/compressed/Makefile] Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2013-06-27Merge branch 'for-next' of git://github.com/rydberg/linux into nextDmitry Torokhov
Pull in changes from Henrik: "a trivial MT documentation fix".
2013-06-27Merge tag 'msm-clock-for-3.11b' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/davidb/linux-msm into next/late From David Brown: MSM clock updates for 3.11. Per Stephen Boyd's coverletter: Resending to collect higher level maintainer acks per Olof's request. The plan is to push this patchset through MSM to the arm-soc tree. This patchset moves the existing MSM clock code and affected drivers to the common clock framework. A prerequisite of moving to the common clock framework is to use clk_prepare() and clk_enable() so the first few patches migrate drivers to that call (clk_prepare() is a no-op on MSM right now). It also removes some custom clock APIs that MSM provides and finally moves the proc_comm clock code to the common struct clk. This patch series will be used as the foundation of the MSM 8660/8960 clock code that I plan to send out after this series. * tag 'msm-clock-for-3.11b' of git://git.kernel.org/pub/scm/linux/kernel/git/davidb/linux-msm: ARM: msm: Migrate to common clock framework ARM: msm: Make proc_comm clock control into a platform driver ARM: msm: Prepare clk_get() users in mach-msm for clock-pcom driver ARM: msm: Remove clock-7x30.h include file ARM: msm: Remove custom clk_set_{max,min}_rate() API ARM: msm: Remove custom clk_set_flags() API msm: iommu: Use clk_set_rate() instead of clk_set_min_rate() msm: iommu: Convert to clk_prepare/unprepare msm_sdcc: Convert to clk_prepare/unprepare usb: otg: msm: Convert to clk_prepare/unprepare msm_serial: Use devm_clk_get() and properly return errors msm_serial: Convert to clk_prepare/unprepare Acked-by: Chris Ball <cjb@laptop.org> # for msm_sdcc.c Signed-off-by: Olof Johansson <olof@lixom.net>
2013-06-27Merge branch 'msm/fixes' into next/lateOlof Johansson
Merging in msm/fixes to avoid silly conflicts at top level. Signed-off-by: Olof Johansson <olof@lixom.net>
2013-06-27Merge branch 'pm-cpufreq-assorted' into pm-cpufreqRafael J. Wysocki
* pm-cpufreq-assorted: (21 commits) cpufreq: powernow-k8: call CPUFREQ_POSTCHANGE notfier in error cases cpufreq: pcc: call CPUFREQ_POSTCHANGE notfier in error cases cpufreq: e_powersaver: call CPUFREQ_POSTCHANGE notfier in error cases cpufreq: ACPI: call CPUFREQ_POSTCHANGE notfier in error cases cpufreq: make __cpufreq_notify_transition() static cpufreq: Fix minor formatting issues cpufreq: Fix governor start/stop race condition cpufreq: Simplify userspace governor cpufreq: powerpc: move cpufreq driver to drivers/cpufreq cpufreq: kirkwood: Select CPU_FREQ_TABLE option cpufreq: big.LITTLE needs cpufreq table cpufreq: SPEAr needs cpufreq table cpufreq: powerpc: Add cpufreq driver for Freescale e500mc SoCs cpufreq: remove unnecessary cpufreq_cpu_{get|put}() calls cpufreq: MAINTAINERS: Add git tree path for ARM specific updates cpufreq: rename index as driver_data in cpufreq_frequency_table cpufreq: Don't create empty /sys/devices/system/cpu/cpufreq directory cpufreq: Move get_cpu_idle_time() to cpufreq.c cpufreq: governors: Move get_governor_parent_kobj() to cpufreq.c cpufreq: Add EXPORT_SYMBOL_GPL for have_governor_per_policy ...
2013-06-27Merge branch 'pm-cpufreq-Kconfig' into pm-cpufreqRafael J. Wysocki
* pm-cpufreq-Kconfig: cpufreq: X86_AMD_FREQ_SENSITIVITY: select CPU_FREQ_TABLE cpufreq: tegra: create CONFIG_ARM_TEGRA_CPUFREQ cpufreq: S3C2416/S3C64XX: select CPU_FREQ_TABLE cpufreq: pxa: select CPU_FREQ_TABLE cpufreq: powerpc: CBE_RAS: select CPU_FREQ_TABLE cpufreq: imx: select CPU_FREQ_TABLE cpufreq: highbank: remove select CPU_FREQ_TABLE cpufreq: exynos: select CPU_FREQ_TABLE cpufreq: davinci: select CPU_FREQ_TABLE cpufreq: cris: select CPU_FREQ_TABLE cpufreq: blackfin: enable driver for CONFIG_BFIN_CPU_FREQ
2013-06-27can: flexcan: Use a regulator to control the CAN transceiverFabio Estevam
Instead of using a GPIO to turn on/off the CAN transceiver, it is better to use a regulator as some systems may use a PMIC to power the CAN transceiver. Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2013-06-27ARM: imx: prepare for removal of flexcan_platform_dataMarc Kleine-Budde
As there are no imx in-tree users of flexcan_platform_data, this patch removes the possibility to register a flexcan device with platform data. The functionality to swith on/off CAN transceivers is added to DT via regulators in a later patch. Compile time tested with imx_v4_v5_defconfig and imx_v6_v7_defconfig. Acked-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2013-06-27Merge tag 'davinci-for-v3.11/dt' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into next/late From Sekhar Nori: Device Tree updates for DaVinci This patch set updates da850 DTS files to enable use of C pre-processor. Also updates pinctrl-single DT data to go with changes done in that module to enable a single register to service configuration of multiple pins. * tag 'davinci-for-v3.11/dt' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci: ARM: davinci: da850: adopt to pinctrl-single change for configuring multiple pins ARM: davinci: da850: Use #include for all device trees Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-27Merge tag 'at91-fixes' of git://github.com/at91linux/linux-at91 into ↵Arnd Bergmann
next/fixes-non-critical From Nicolas Ferre: Several fixes for: - external irq on non-DT boards - cpuidle code in some circumstances - PMC code in relation with PLLB/PLL_UTMI/USB: mainly for SAMA5D3 and AT91SAM9N12 * tag 'at91-fixes' of git://github.com/at91linux/linux-at91: ARM: at91/PMC: use at91_usb_rate() for UTMI PLL ARM: at91/PMC: fix at91sam9n12 USB FS init ARM: at91/PMC: at91sam9n12 family has a PLLB ARM: at91/PMC: sama5d3 family doesn't have a PLLB ARM: at91: cpuidle: Fix target_residency ARM: at91: fix at91_extern_irq usage for non-dt boards Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-27ARM: ux500: bail out on alien cpusLinus Walleij
This makes the l2x0 initialization fail gracefully on non-ux500 systems. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
2013-06-27Merge tag 'renesas-sh-sci-for-v3.11' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/late Renesas sh-sci updates for v3.11 HSCIF support by Ulrich Hecht. * tag 'renesas-sh-sci-for-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: serial: sh-sci: Initialise variables before access in sci_set_termios() ARM: shmobile: r8a7790: don't use external clock for SCIFs ARM: shmobile: r8a7790: HSCIF support serial: sh-sci: HSCIF support Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-27Merge branch 'renesas/boards2' into next/lateArnd Bergmann
Conflicts: arch/arm/mach-shmobile/setup-r8a7778.c This is a dependency for the Renesas sh-sci updates. Signedf-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-27ARM: integrator: let pciv3 use mem/premem from device treeLinus Walleij
Instead of relying on the hard-coded mem/premem bases for the PCI side, read in these from the device tree in the DT probe path. Hard-code the old values on the non-DT probe path. Introduce some static locals to hold these addresses instead of the earlier static #defines. Reported-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-27ARM: integrator: set local side PCI addresses rightLinus Walleij
This alters the local side address of the iospace to zero, non prefetchable memory local side address to 0x00000000 and prefetchable memory local side address to 0x10000000, so as to match the values actually poked in by the driver. Reported-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-26ARM: davinci: da850: adopt to pinctrl-single change for configuring multiple ↵Manjunathappa, Prakash
pins function-mask DT property is now a mask for a pin at each pin offset inside a given pincontrol register. Fix DA850 DT data to reflect this change. Signed-off-by: Manjunathappa, Prakash <prakash.pm@ti.com> [nsekhar@ti.com: reword commit message for clarity] Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2013-06-26ARM: dts: Add pcie controller node for exynos5440-ssdk5440Jingoo Han
This patch adds pcie controller node for exynos5440-ssdk5440, and also adds a phandle for pin controller node. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-26ARM: dts: Add pcie controller node for Samsung EXYNOS5440 SoCJingoo Han
Exynos5440 has two PCIe controllers which can be used as root complex for PCIe interface. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-26ARM: EXYNOS: Enable PCIe support for Exynos5440Jingoo Han
Enable PCIe support for Exynos5440 which has two PCIe controllers. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-26ARM: kvm: don't include drivers/virtio/KconfigArnd Bergmann
The virtio configuration has recently moved and is now visible everywhere. Including the file again from KVM as we used to need earlier now causes dependency problems: warning: (CAIF_VIRTIO && VIRTIO_PCI && VIRTIO_MMIO && REMOTEPROC && RPMSG) selects VIRTIO which has unmet direct dependencies (VIRTUALIZATION) Cc: Christoffer Dall <cdall@cs.columbia.edu> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
2013-06-26arm/kvm: Cleanup KVM_ARM_MAX_VCPUS logicGeoff Levand
Commit d21a1c83c7595e387545632e44cd7797b76e19cc (ARM: KVM: define KVM_ARM_MAX_VCPUS unconditionally) changed the Kconfig logic for KVM_ARM_MAX_VCPUS to work around a build error arising from the use of KVM_ARM_MAX_VCPUS when CONFIG_KVM=n. The resulting Kconfig logic is a bit awkward and leaves a KVM_ARM_MAX_VCPUS always defined in the kernel config file. This change reverts the Kconfig logic back and adds a simple preprocessor conditional in kvm_host.h to handle when CONFIG_KVM_ARM_MAX_VCPUS is undefined. Signed-off-by: Geoff Levand <geoff@infradead.org> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
2013-06-26ARM: KVM: clear exclusive monitor on all exception returnsMarc Zyngier
Make sure we clear the exclusive monitor on all exception returns, which otherwise could lead to lock corruptions. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
2013-06-26ARM: KVM: add missing dsb before invalidating Stage-2 TLBsMarc Zyngier
When performing a Stage-2 TLB invalidation, it is necessary to make sure the write to the page tables is observable by all CPUs. For this purpose, add a dsb instruction to __kvm_tlb_flush_vmid_ipa before doing the TLB invalidation itself. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
2013-06-26ARM: KVM: perform save/restore of PARMarc Zyngier
Not saving PAR is an unfortunate oversight. If the guest performs an AT* operation and gets scheduled out before reading the result of the translation from PAR, it could become corrupted by another guest or the host. Saving this register is made slightly more complicated as KVM also uses it on the permission fault handling path, leading to an ugly "stash and restore" sequence. Fortunately, this is already a slow path so we don't really care. Also, Linux doesn't do any AT* operation, so Linux guests are not impacted by this bug. [ Slightly tweaked to use an even register as first operand to ldrd and strd operations in interrupts_head.S - Christoffer ] Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
2013-06-26ARM: KVM: get rid of S2_PGD_SIZEMarc Zyngier
S2_PGD_SIZE defines the number of pages used by a stage-2 PGD and is unused, except for a VM_BUG_ON check that missuses the define. As the check is very unlikely to ever triggered except in circumstances where KVM is the least of our worries, just kill both the define and the VM_BUG_ON check. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Christoffer Dall <cdall@cs.columbia.edu>
2013-06-26ARM: KVM: don't special case PC when doing an MMIOMarc Zyngier
Admitedly, reading a MMIO register to load PC is very weird. Writing PC to a MMIO register is probably even worse. But the architecture doesn't forbid any of these, and injecting a Prefetch Abort is the wrong thing to do anyway. Remove this check altogether, and let the adventurous guest wander into LaLaLand if they feel compelled to do so. Reported-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Christoffer Dall <cdall@cs.columbia.edu>
2013-06-26ARM: KVM: use phys_addr_t instead of unsigned long long for HYP PGDsMarc Zyngier
HYP PGDs are passed around as phys_addr_t, except just before calling into the hypervisor init code, where they are cast to a rather weird unsigned long long. Just keep them around as phys_addr_t, which is what makes the most sense. Reported-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Christoffer Dall <cdall@cs.columbia.edu>
2013-06-26ARM: KVM: remove dead prototype for __kvm_tlb_flush_vmidMarc Zyngier
__kvm_tlb_flush_vmid has been renamed to __kvm_tlb_flush_vmid_ipa, and the old prototype should have been removed when the code was modified. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Christoffer Dall <cdall@cs.columbia.edu>
2013-06-26ARM: KVM: Don't handle PSCI calls via SMCDave P Martin
Currently, kvmtool unconditionally declares that HVC should be used to call PSCI, so the function numbers in the DT tell the guest nothing about the function ID namespace or calling convention for SMC. We already assume that the guest will examine and honour the DT, since there is no way it could possibly guess the KVM-specific PSCI function IDs otherwise. So let's not encourage guests to violate what's specified in the DT by using SMC to make the call. [ Modified to apply to top of kvm/arm tree - Christoffer ] Signed-off-by: Dave P Martin <Dave.Martin@arm.com> Acked-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Christoffer Dall <cdall@cs.columbia.edu>
2013-06-26ARM: KVM: Allow host virt timer irq to be different from guest timer virt irqAnup Patel
The arch_timer irq numbers (or PPI numbers) are implementation dependent, so the host virtual timer irq number can be different from guest virtual timer irq number. This patch ensures that host virtual timer irq number is read from DTB and guest virtual timer irq is determined based on vcpu target type. Signed-off-by: Anup Patel <anup.patel@linaro.org> Signed-off-by: Pranavkumar Sawargaonkar <pranavkumar@linaro.org> Signed-off-by: Christoffer Dall <cdall@cs.columbia.edu>
2013-06-26Merge tag 'at91-dt' of git://github.com/at91linux/linux-at91 into next/dtArnd Bergmann
From Nicolas Ferre: - more SPI DT activation for rm9200 - SPI DMA for at91sam9n12/sama5d3 And one little fix for SPI compatibility string * tag 'at91-dt' of git://github.com/at91linux/linux-at91: ARM: at91: dt: rm9200ek: add spi support ARM: at91: dt: rm9200: add spi support ARM: at91/DT: at91sam9n12: add SPI DMA client infos ARM: at91/DT: sama5d3: add SPI DMA client infos ARM: at91/DT: fix SPI compatibility string Conflicts: arch/arm/boot/dts/sama5d3.dtsi Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-26Merge tag 'omap-pm-v3.11/fixes/omap5-voltdm' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm into next/soc From Kevin Hilman: OMAP5: PM: fix boot by removing unneeded dummy voltage domain data * tag 'omap-pm-v3.11/fixes/omap5-voltdm' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm: ARM: OMAP5: voltagedomain data: remove temporary OMAP4 voltage data Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-26ARM: at91/PMC: use at91_usb_rate() for UTMI PLLNicolas Ferre
We are using this function, now that we have introduced the support for UTMI clock for computing the USB host rate. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Tested-by: Bo Shen <voice.shen@atmel.com>
2013-06-26ARM: at91/PMC: fix at91sam9n12 USB FS initNicolas Ferre
at91sam9n12 has Full-speed only USB. So we should add it to the list in at91_pllb_usbfs_clock_init() function. Moreover, at91sam9n12 has an unusual PMC in the sense that it has a PLLB but also has a USB clock register. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Tested-by: Bo Shen <voice.shen@atmel.com>
2013-06-26ARM: at91/PMC: at91sam9n12 family has a PLLBNicolas Ferre
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Bo Shen <voice.shen@atmel.com>
2013-06-26ARM: at91/PMC: sama5d3 family doesn't have a PLLBNicolas Ferre
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
2013-06-26ARM: at91: dt: rm9200ek: add spi supportJean-Christophe PLAGNIOL-VILLARD
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>