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2009-01-29sh: Use SYS_SUPPORTS_CMT for managing CMT timer dependencies.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29sh: CMT platform data for sh7723/sh7722/sh7366/sh7343Magnus Damm
CMT platform data for SuperH Mobile sh7723/sh7722/sh7343/sh7366. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29sh: CMT clockevent platform driverMagnus Damm
SuperH CMT clockevent driver. Both 16-bit and 32-bit CMT versions are supported, but only 32-bit is tested. This driver contains support for both clockevents and clocksources, but no unregistration is supported at this point. Works fine as clock source and/or event in periodic or oneshot mode. Tested on sh7722 and sh7723, but should work with any cpu/architecture. This version is lacking clocksource and early platform driver support for now - this to minimize the amount of dependencies. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29sh: fix no sys_timer caseMagnus Damm
Handle the case with a sys_timer set to NULL. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29sh: tmu disable supportMagnus Damm
Add TMU disable support so we can use other clockevents. Also, setup the clockevent rating. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29sh: rework clocksource and sched_clockMagnus Damm
Rework and simplify the sched_clock and clocksource code. Instead of registering the clocksource in a shared file we move it into the tmu driver. Also, add code to handle sched_clock in the case of no clocksource. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29SH: fix start_thread and user_stack_pointer macrosRoel Kluin
Fix macros start_thread and user_stack_pointer. When these macros aren't called with a variable named regs as second argument, this will result in a build failure. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29sh: Use the atomic_t "counter" memberMatt Fleming
Now that atomic_t is a generic opaque type for all architectures, it is unwise to use intimate knowledge of its internals when manipulating it. Instead of relying on the "counter" member being at offset 0 from the beginning of an atomic_t, explicitly reference the member. This guards us from any changes to the layout of the beginning of the atomic_t type. Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29sh: Relax inline assembly constraintsMatt Fleming
When dereferencing the memory address contained in a register and modifying the value at that memory address, the register should not be listed in the inline asm outputs. The value at the memory address is an output (which is taken care of with the "memory" clobber), not the register. Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29Merge branch 'sh/stable-updates'Paul Mundt
2009-01-29sh: Fix up T-bit error handling in SH-4A mutex fastpath.Takashi Yoshii
This corrects a deadlock encountered on ap325 in the cases where the mutex is contended and the slow-path needs to be fallen back upon. Signed-off-by: Takashi YOSHII <yoshii.takashi@renesas.com> Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29sh: Fix up spurious syscall restarting.Paul Mundt
The T-bit manipulation for syscall error checking had the side effect of spuriously returning ERESTART* errno values over EINTR. So, we simplify the error checking a bit and leave the T-bit alone. Reported-by: Kaz Kojima <kkojima@rr.iij4u.or.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29sh: fcnvds fix with denormalized numbers on SH-4 FPU.Carmelo AMOROSO
This fixes a bug in the FPU exception handler for the FCNVDS instruction. To get the register number the instruction is shifted right by 9, though it should be shifted right by 8. More information at ST Linux bugzilla: https://bugzilla.stlinux.com/show_bug.cgi?id=4892 Signed-off-by: Giuseppe Di Giore <giuseppe.di-giore@st.com> Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com> Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29sh: Only reserve memory under CONFIG_ZERO_PAGE_OFFSET when it != 0.Christopher SMITH
Signed-off-by: Chris Smith <chris.smith@st.com> Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29sh: Handle calling csum_partial with misaligned dataStuart Menefy
In rare circumstances csum_partial() can be called with data which is not 16 or 32 bit aligned. This is been observed with RPC calls for NFS file systems for example. Add support for handling this without resorting to the misaligned fixup code (which is why this hasn't been seen as a problem). This mimics the i386 version, which has had this support for some time. Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29sh: ap325rxa: Enable ov772x in defconfig.Kuninori Morimoto
This patch updates the ap325 defconfig to include ov772x camera driver. Old camera is still supported. Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29sh: ap325rxa: Add ov772x support.Kuninori Morimoto
This patch add ov772x camera settings to ap325, Old camera is still supported. And it will be 2nd camera if you select ov772x and soc_camera_platform in same time. Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29sh: ap325rxa: control camera power toggling.Kuninori Morimoto
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29sh: mach-migor: Enable ov772x and tw9910 in defconfig.Kuninori Morimoto
This patch updates the Migo-R defconfig to include ov772x camera and tw9910 video driver Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-27sh: mach-highlander and mach-rsk require gpiolib.Paul Mundt
Fix up the build for mach-highlander and mach-rsk. These operated on the assumption that GENERIC_GPIO support with an optional GPIOLIB was possible. This used to be true, but has not been the case since commit-id d56cc8bc661ac1ceded8d45ba2d53bb134fee17d ("sh: use gpiolib"), where the GENERIC_GPIO implementation was rewritten to use GPIOLIB directly. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-27sh: Fix up GENERIC_GPIO build for ARCH_WANT_OPTIONAL_GPIO cases.Paul Mundt
CPUs define pinmux tables through the optional interface, while boards that require demux of their own require it explicitly. Roll the Makefile rules back to depend on GENERIC_GPIO, which covers both cases. Fixes a link error with an undefined reference to register_pinmux() on optional platforms. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-27sh: use gpiolibMagnus Damm
This patch updates the SuperH gpio code to make use of gpiolib. The gpiolib callbacks get() and set() are lockless, but we use our own spinlock for the other operations to make sure hardware register bitfield accesses stay atomic. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-27sh: lockless gpio_set_value()Magnus Damm
This patch optimizes the gpio data register handling for gpio_set_value(). Instead of using the good old spinlock-plus-read-modify-write strategy we now use a shadow register and atomic operations. This improves the bitbanging mmc performance on Migo-R from 26 Kbytes/s to 40 Kbytes/s. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-27sh: lockless gpio_get_value()Magnus Damm
This patch separates the register read and write functions to allow lockless gpio_get_value(). Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-27sh: make gpio_get/set_value() O(1)Magnus Damm
This patch modifies the table based SuperH gpio implementation to make use of direct table lookups. With this change the functions gpio_get_value() and gpio_set_value() are O(1). Tested on Migo-R using bitbanging mmc. Performance is improved from 11 KBytes/s to 26 Kbytes/s. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-26Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6Linus Torvalds
* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6: i2c: Warn on deprecated binding model use eeprom: More consistent symbol names eeprom: Move 93cx6 eeprom driver to /drivers/misc/eeprom spi: Move at25 (for SPI eeproms) to /drivers/misc/eeprom i2c: Move old eeprom driver to /drivers/misc/eeprom i2c: Move at24 to drivers/misc/eeprom i2c: Quilt tree has moved i2c: Delete many unused adapter IDs i2c: Delete 10 unused driver IDs
2009-01-26eeprom: More consistent symbol namesJean Delvare
Now that all EEPROM drivers live in the same place, let's harmonize their symbol names. Also fix eeprom's dependencies, it definitely needs sysfs, and is no longer experimental after many years in the kernel tree. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Cc: David Brownell <dbrownell@users.sourceforge.net>
2009-01-21sh: fix unaligned and nonexistent address handlingSUGIOKA Toshinobu
unaligned and nonexistent address causes wrong exception handling in traps_32.c(handle_unaligned_access). 'handle_unalinged_ins' should return -EFAULT if address error is fixed up with kernel exception table, otherwise 'handle_unaligned_access' increases already fixed program counter and then crash. for example ioctl(fd, TCGETA, (struct termio *)-1) never return and stay in TASK_UNINTERRUPTIBLE state forever in my kernel. Signed-off-by: SUGIOKA Toshinobu <sugioka@itonet.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-21sh: export the sh7343 JPU to user spaceMagnus Damm
This patch exports the sh7343 JPU to user space using uio_pdrv_genirq, very similar to the sh7722 JPU patch by Hayama-san. While at it fix up the end of the sh7722 JPU iomem resource. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-21sh: update defconfigs.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-21sh: Kill off obsolete busses from arch/sh/Kconfig.Paul Mundt
ISA can go away now that the hd6446x PCMCIA drivers no longer exist in-tree. The rationale for enabling CONFIG_ISA in the first place is likewise no longer valid given that the subsystem has changed since the time that assertion was valid. While we are at it, kill off SBUS, MCA, EISA, and so on. These are not supported and never will be. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-21sh: sh7785lcr/highlander/hp6xx need linux/irq.h.Paul Mundt
More build fixes.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-21sh: Migo-R MMC support using spi_gpio and mmc_spi.Magnus Damm
This patch adds CN9 MMC support for MigoR using the mmc_spi driver on top of the bitbanging spi_gpio driver. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-21sh: ap325rxa MMC support using spi_gpio and mmc_spiMagnus Damm
This patch adds CN3 MMC support for ap325rxa using the mmc_spi driver on top of the bitbanging spi_gpio driver. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-21sh: mach-x3proto: needs linux/irq.h.Paul Mundt
Since commit ba84be2338d3a2b6020d39279335bb06fcd332e1 ("remove linux/hardirq.h from asm-generic/local.h"), the asm/irq.h definitions that mach-x3proto/setup.c depends on are no longer available, causing the build to die. So, include linux/irq.h explicitly. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-21sh: Drop the BKL from sys_execve() on SH-5.Paul Mundt
Brings it in line with the SH implementation, the BKL is not necessary here. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-21sh: convert rsk7203 to use smsc911x.Steve Glendinning
Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-21sh: convert magicpanelr2 platform to use smsc911x.Steve Glendinning
Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-21sh: convert ap325rxa platform to use smsc911x.Steve Glendinning
Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-21sh: mach-migor: Add tw9910 support.Kuninori Morimoto
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-21sh: mach-migor: Delete soc_camera_platform setup.Kuninori Morimoto
Migo-R can use ov772x camera driver in Linux 2.6.29. Therefore, soc_camera_platform setting is no longer needed. This patch removes it. Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-21sh: mach-migor: Add ov772x support.Kuninori Morimoto
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-21asm-sh/posix_types_{32,64}.h: drop __GLIBC__/__USE_ALL usageMike Frysinger
Bring sh in line with all the other ports. Not sure how sh missed this change as all the other arches were being updated ... Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-21arch/sh/mm: Move a dereference below a NULL testJulia Lawall
If the NULL test is necessary, then the dereference should be moved below the NULL test. The semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/). // <smpl> @disable is_null@ identifier f; expression E; identifier fld; statement S; @@ + if (E == NULL) S f(...,E->fld,...); - if (E == NULL) S @@ identifier f; expression E; identifier fld; statement S; @@ + if (!E) S f(...,E->fld,...); - if (!E) S // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-14Merge branch 'syscalls' of git://git390.osdl.marist.edu/pub/scm/linux-2.6Linus Torvalds
* 'syscalls' of git://git390.osdl.marist.edu/pub/scm/linux-2.6: (44 commits) [CVE-2009-0029] s390 specific system call wrappers [CVE-2009-0029] System call wrappers part 33 [CVE-2009-0029] System call wrappers part 32 [CVE-2009-0029] System call wrappers part 31 [CVE-2009-0029] System call wrappers part 30 [CVE-2009-0029] System call wrappers part 29 [CVE-2009-0029] System call wrappers part 28 [CVE-2009-0029] System call wrappers part 27 [CVE-2009-0029] System call wrappers part 26 [CVE-2009-0029] System call wrappers part 25 [CVE-2009-0029] System call wrappers part 24 [CVE-2009-0029] System call wrappers part 23 [CVE-2009-0029] System call wrappers part 22 [CVE-2009-0029] System call wrappers part 21 [CVE-2009-0029] System call wrappers part 20 [CVE-2009-0029] System call wrappers part 19 [CVE-2009-0029] System call wrappers part 18 [CVE-2009-0029] System call wrappers part 17 [CVE-2009-0029] System call wrappers part 16 [CVE-2009-0029] System call wrappers part 15 ...
2009-01-14byteorder: make swab.h include asm/swab.h like a regular headerHarvey Harrison
Add swab.h to kbuild.asm and remove the individual entries from each arch, mark as unifdef as some arches have some kernel-only bits inside. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-14[CVE-2009-0029] Remove __attribute__((weak)) from sys_pipe/sys_pipe2Heiko Carstens
Remove __attribute__((weak)) from common code sys_pipe implemantation. IA64, ALPHA, SUPERH (32bit) and SPARC (32bit) have own implemantations with the same name. Just rename them. For sys_pipe2 there is no architecture specific implementation. Cc: Richard Henderson <rth@twiddle.net> Cc: David S. Miller <davem@davemloft.net> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Tony Luck <tony.luck@intel.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2009-01-14[CVE-2009-0029] Rename old_readdir to sys_old_readdirHeiko Carstens
This way it matches the generic system call name convention. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2009-01-11sparseirq: use kstat_irqs_cpu insteadYinghai Lu
Impact: build fix Ingo Molnar wrote: > tip/arch/blackfin/kernel/irqchip.c: In function 'show_interrupts': > tip/arch/blackfin/kernel/irqchip.c:85: error: 'struct kernel_stat' has no member named 'irqs' > make[2]: *** [arch/blackfin/kernel/irqchip.o] Error 1 > make[2]: *** Waiting for unfinished jobs.... > So could move kstat_irqs array to irq_desc struct. (s390, m68k, sparc) are not touched yet, because they don't support genirq Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-08NOMMU: Make VMAs per MM as for MMU-mode linuxDavid Howells
Make VMAs per mm_struct as for MMU-mode linux. This solves two problems: (1) In SYSV SHM where nattch for a segment does not reflect the number of shmat's (and forks) done. (2) In mmap() where the VMA's vm_mm is set to point to the parent mm by an exec'ing process when VM_EXECUTABLE is specified, regardless of the fact that a VMA might be shared and already have its vm_mm assigned to another process or a dead process. A new struct (vm_region) is introduced to track a mapped region and to remember the circumstances under which it may be shared and the vm_list_struct structure is discarded as it's no longer required. This patch makes the following additional changes: (1) Regions are now allocated with alloc_pages() rather than kmalloc() and with no recourse to __GFP_COMP, so the pages are not composite. Instead, each page has a reference on it held by the region. Anything else that is interested in such a page will have to get a reference on it to retain it. When the pages are released due to unmapping, each page is passed to put_page() and will be freed when the page usage count reaches zero. (2) Excess pages are trimmed after an allocation as the allocation must be made as a power-of-2 quantity of pages. (3) VMAs are added to the parent MM's R/B tree and mmap lists. As an MM may end up with overlapping VMAs within the tree, the VMA struct address is appended to the sort key. (4) Non-anonymous VMAs are now added to the backing inode's prio list. (5) Holes may be punched in anonymous VMAs with munmap(), releasing parts of the backing region. The VMA and region structs will be split if necessary. (6) sys_shmdt() only releases one attachment to a SYSV IPC shared memory segment instead of all the attachments at that addresss. Multiple shmat()'s return the same address under NOMMU-mode instead of different virtual addresses as under MMU-mode. (7) Core dumping for ELF-FDPIC requires fewer exceptions for NOMMU-mode. (8) /proc/maps is now the global list of mapped regions, and may list bits that aren't actually mapped anywhere. (9) /proc/meminfo gains a line (tagged "MmapCopy") that indicates the amount of RAM currently allocated by mmap to hold mappable regions that can't be mapped directly. These are copies of the backing device or file if not anonymous. These changes make NOMMU mode more similar to MMU mode. The downside is that NOMMU mode requires some extra memory to track things over NOMMU without this patch (VMAs are no longer shared, and there are now region structs). Signed-off-by: David Howells <dhowells@redhat.com> Tested-by: Mike Frysinger <vapier.adi@gmail.com> Acked-by: Paul Mundt <lethal@linux-sh.org>
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