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2010-12-15crypto: ghash-intel - ghash-clmulni-intel_glue needs err.hRandy Dunlap
Add missing header file: arch/x86/crypto/ghash-clmulni-intel_glue.c:256: error: implicit declaration of function 'IS_ERR' arch/x86/crypto/ghash-clmulni-intel_glue.c:257: error: implicit declaration of function 'PTR_ERR' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-12-14Merge branch 'sh-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 * 'sh-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: sh: wire up accept4 syscall (non-multiplexed path) sh: Enable deprecated IRQ chip APIs for MFD and GPIOLIB drivers.
2010-12-14Merge branch 'omap-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 * 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: OMAP2: PRCM: fix some SHIFT macros that were actually bitmasks OMAP2+: PM/serial: fix console semaphore acquire during suspend OMAP1: SRAM: fix size for OMAP1611 SoCs arm: omap2: io: fix clk_get() error check arm: plat-omap: counter_32k: use IS_ERR() instead of NULL check omap: nand: remove hardware ECC as default omap: zoom: wl1271 slot is MMC_CAP_POWER_OFF_CARD omap: PM debug: fix wake-on-timer debugfs dependency
2010-12-14Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* master.kernel.org:/home/rmk/linux-2.6-arm: ARM: 6535/1: V6 MPCore v6_dma_inv_range and v6_dma_flush_range RWFO fix ARM: 6534/1: Make CONFIG_FPE_NWFPE depend on !CONFIG_THUMB2_KERNEL ARM: 6533/1: Thumb-2: Make CONFIG_THUMB2_KERNEL depend on !CPU_V6 Change bcmring Maintainer list. ARM: Update mach-types ARM: 6528/1: Use CTR for the I-cache line size on ARMv7 ARM: 6527/1: Use CTR instead of CCSIDR for the D-cache line size on ARMv7 ARM: pxa/palm: fix ifdef around gen_nand driver registration ARM: pxa: fix pxa2xx-flash section mismatch ARM: mmp2: remove not used clk_rtc
2010-12-14Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc: Write to prom console using indirect buffer. sparc: Delete prom_*getchar(). sparc: Pass buffer pointer all the way down to prom_{get,put}char(). sparc: Do not export prom_nb{get,put}char(). sparc64: Delete prom_setcallback(). sparc64: Unexport prom_service_exists(). sparc: Kill prom devops_{32,64}.c sparc: Remove prom_pathtoinode() sparc64: Delete prom_puts() unused. SPARC/LEON: removed constant timer initialization as if HZ=100, now it reflects the value of HZ
2010-12-14ARM: 6535/1: V6 MPCore v6_dma_inv_range and v6_dma_flush_range RWFO fixValentine Barshak
Cache ownership must be acquired by reading/writing data from the cache line to make cache operation have the desired effect on the SMP MPCore CPU. However, the ownership is never acquired in the v6_dma_inv_range function when cleaning the first line and flushing the last one, in case the address is not aligned to D_CACHE_LINE_SIZE boundary. Fix this by reading/writing data if needed, before performing cache operations. While at it, fix v6_dma_flush_range to prevent RWFO outside the buffer. Cc: stable@kernel.org Signed-off-by: Valentine Barshak <vbarshak@mvista.com> Signed-off-by: George G. Davis <gdavis@mvista.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-14ARM: 6534/1: Make CONFIG_FPE_NWFPE depend on !CONFIG_THUMB2_KERNELDave Martin
Because the nwfpe support is unlikely to be used on new platforms and requires CONFIG_OABI_COMPAT, which is not generally used with ARMv7+, we shouldn't expect to build nwfpe support into a Thumb-2 kernel. At present, nwfpe contains assembly code which isn't Thumb-2 compatible, and for now it doesn't appear useful to port this code. All ARMv7-A/R platforms necessarily have VFPv3 hardware floating- point natively, making emulation unnecessary. Signed-off-by: Dave Martin <dave.martin@linaro.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-14ARM: 6533/1: Thumb-2: Make CONFIG_THUMB2_KERNEL depend on !CPU_V6Dave Martin
This makes sense, because Thumb-2 code can't execute on plain ARMv6 processors. This will avoid accidentally configuring a broken kernel where the config otherwise would allow multiple architecture versions to coexist in the same kernel. Not adding !CPU_V5 etc., because the chance of anyone trying to put v5 and v7 in the same kernel is low, and I'm not aware of any mach which can do this. These could be added later if it matters. Note that the rules may need to be refined if support for the ARM1156J(F)-S processor is later added to the kernel, since this processor supports the rare ARMv6T2 extensions, which add support for Thumb-2 and a few other ARMv7 features. Signed-off-by: Dave Martin <dave.martin@linaro.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-14sh: wire up accept4 syscall (non-multiplexed path)Carmelo AMOROSO
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-12-13sh: Enable deprecated IRQ chip APIs for MFD and GPIOLIB drivers.Paul Mundt
There are still quite a number of MFD and GPIO expander drivers that are using the old irq_chip APIs that haven't had a chance to update during the .37 cycle, resulting in allyes/modconfig errors on some configurations. Mark Brown has done most of the legwork to get these fixed up in .38, so this should just be a .37 stop-gap that we can drop at the end of the .38 merge window. Reported-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-12-12Merge branch 'fix' of ↵Russell King
git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6
2010-12-12ARM: Update mach-typesRussell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-12ARM: 6528/1: Use CTR for the I-cache line size on ARMv7Catalin Marinas
The current implementation of the v7_coherent_*_range function assumes that the D and I cache lines have the same size, which is incorrect architecturally. This patch adds the icache_line_size macro which reads the CTR register. The main loop in v7_coherent_*_range is split in two independent loops or the D and I caches. This also has the performance advantage that the DSB is moved outside the main loop. Reported-by: Kevin Sapp <ksapp@quicinc.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-12ARM: 6527/1: Use CTR instead of CCSIDR for the D-cache line size on ARMv7Catalin Marinas
The current implementation of the dcache_line_size macro reads the L1 cache size from the CCSIDR register. This, however, is not guaranteed to be the smallest cache line in the cache hierarchy. The patch changes to the macro to use the more architecturally correct CTR register. Reported-by: Kevin Sapp <ksapp@quicinc.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-10OMAP2: PRCM: fix some SHIFT macros that were actually bitmasksPaul Walmsley
After Charu's GPIO hwmod patches, GPIO initialization on N800 emits the following messages for all GPIO banks: omap_hwmod: gpio1: cannot be enabled (3) This is due to OMAP24XX_ST_GPIOS_SHIFT being defined as a bitmask. Fix this and also fix two other macros that had the same problem. Thanks to Tony Lindgren <tony@atomide.com> for originally reporting this bug. Signed-off-by: Paul Walmsley <paul@pwsan.com Cc: Charulatha Varadarajan <charu@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-12-09OMAP2+: PM/serial: fix console semaphore acquire during suspendKevin Hilman
commit 0d8e2d0dad98a693bad88aea6876ac8b94ad95c6 (OMAP2+: PM/serial: hold console semaphore while OMAP UARTs are disabled) added use of the console semaphore to protect UARTs from being accessed after disabled during idle, but this causes problems in suspend. During suspend, the console semaphore is acquired by the console suspend method (console_suspend()) so the try_acquire_console_sem() will always fail and suspend will be aborted. To fix, introduce a check so the console semaphore is only attempted during idle, and not during suspend. Also use the same check so that the console semaphore is not prematurely released during resume. Thanks to Paul Walmsley for suggesting adding the same check during resume. Cc: Paul Walmsley <paul@pwsan.com> Tested-by: Jean Pihet <j-pihet@ti.com> Tested-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-12-09OMAP1: SRAM: fix size for OMAP1611 SoCsKevin Hilman
Kernel was failing to boot on omap1611 based OSK boards due to mis-configured SRAM size. Existing code was using a hard-coded value for 250k, which was then rounded down by PAGE_SIZE. Increasing this to 256k allows kernel to boot on omap1611 SoCs. Problem reported by and initial fix suggested by Tim Bird. Thanks to Tony Lindgren for helping diagnose the problem to being specific to OMAP1611 and not affecting OMAP1610/OMAP1623. Reported-by: Tim Bird <tim.bird@am.sony.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-12-08Merge branches 'x86-fixes-for-linus', 'perf-fixes-for-linus' and ↵Linus Torvalds
'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86/pvclock: Zero last_value on resume * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: perf record: Fix eternal wait for stillborn child perf header: Don't assume there's no attr info if no sample ids is provided perf symbols: Figure out start address of kernel map from kallsyms perf symbols: Fix kallsyms kernel/module map splitting * 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: nohz: Fix printk_needs_cpu() return value on offline cpus printk: Fix wake_up_klogd() vs cpu hotplug
2010-12-07arm: omap2: io: fix clk_get() error checkAaro Koskinen
clk_get() return value should be checked with IS_ERR(). Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Acked-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-12-07Merge branch 'fixes/2637-rc5/s3c24xx' of git://git.fluff.org/bjdooks/linuxLinus Torvalds
* 'fixes/2637-rc5/s3c24xx' of git://git.fluff.org/bjdooks/linux: ARM: S3C24XX: Fix mess with gpio {set,get}_pull callbacks ARM: mini2440: Fix Kconfig to allow kernel to build ARM: S3C2412: Fix typo in CONFIG_CPU_S3C2412_ONLY definition ARM: S3C2443: Select properly ARM core type ARM: SMDK2416: Select MACH_SMDK, S3C_DEV_NAND, S3C_DEV_USB_HOST
2010-12-08ARM: S3C24XX: Fix mess with gpio {set,get}_pull callbacksVasily Khoruzhick
Currently the {set,get}_pull callbacks of the s3c24xx_gpiocfg_default structure are initalized via s3c_gpio_{get,set}pull_1up. This results in a linker error when only CONFIG_CPU_S3C2442 is selected: arch/arm/plat-s3c24xx/built-in.o:(.data+0x13f4): undefined reference to `s3c_gpio_getpull_1up' arch/arm/plat-s3c24xx/built-in.o:(.data+0x13f8): undefined reference to `s3c_gpio_setpull_1up' The s3c2442 has pulldowns instead of pullups compared to the s3c2440. The method of controlling them is the same though. So this patch modifies the existing s3c_gpio_{get,set}pull_1up helper functions to take an additional parameter deciding whether the pin has a pullup or pulldown. The s3c_gpio_{get,set}pull_1{down,up} functions then wrap that functions passing either S3C_GPIO_PULL_UP or S3C_GPIO_PULL_DOWN. Furthermore this patch sets up the s3c24xx_gpiocfg_default.{get,set}_pull fields in the s3c244{0,2}_map_io function to the new pulldown helper functions. Based on patch from "Lars-Peter Clausen" <lars@metafoo.de> Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-12-07MN10300: Fix interrupt mask alteration function call name in gdbstubDavid Howells
Fix the name of interrupt mask alteration function (ie the local_change_intr_mask_level() fn) called in gdbstub to have an arch_ prefix to match the definition in asm/irqflags.h. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-12-07Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6Linus Torvalds
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: [S390] css: fix rsid evaluation for 2nd crw [S390] nohz/s390: fix arch_needs_cpu() return value on offline cpus
2010-12-06ARM: tegra: fix regression from addruart rewriteOlof Johansson
Commit 0ea129300982 ("arm: return both physical and virtual addresses from addruart") took out the test for MMU on/off but didn't switch the ldr instructions to no longer be conditionals based on said test. Fix that. Signed-off-by: Olof Johansson <olof@lixom.net> Acked-by: Colin Cross <ccross@android.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-12-06arm: plat-omap: counter_32k: use IS_ERR() instead of NULL checkVasiliy Kulikov
clk_get() returns ERR_PTR() on error, not NULL. Signed-off-by: Vasiliy Kulikov <segoon@openwall.com> Acked-by: Kevin Hilman <khilman@deeprootsystems.com> [tony@atomide.com: updated to include err.h to compile on omap1] Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-12-06omap: zoom: wl1271 slot is MMC_CAP_POWER_OFF_CARDOhad Ben-Cohen
This patch complements ed919b0 "mmc: sdio: fix runtime PM anomalies by introducing MMC_CAP_POWER_OFF_CARD" by declaring MMC_CAP_POWER_OFF_CARD on the ZOOM's wl1271 mmc slot. This is required in order not to break runtime PM support for the wl1271 sdio driver. Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com> Signed-off-by: Chris Ball <cjb@laptop.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-12-06Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* master.kernel.org:/home/rmk/linux-2.6-arm: ARM: 6524/1: GIC irq desciptor bug fix ARM: 6523/1: iop: ensure sched_clock() is notrace ARM: 6456/1: Fix for building DEBUG with sa11xx_base.c as a module. ARM: 6519/1: kuser: Fix incorrect cmpxchg syscall in kuser helpers ARM: 6505/1: kprobes: Don't HAVE_KPROBES when CONFIG_THUMB2_KERNEL is selected ARM: 6508/1: vexpress: Correct data alignment in headsmp.S for CONFIG_THUMB2_KERNEL ARM: 6507/1: RealView: Correct data alignment in headsmp.S for CONFIG_THUMB2_KERNEL ARM: 6504/1: Thumb-2: Fix long-distance conditional branches in head.S for Thumb-2. ARM: 6503/1: Thumb-2: Restore sensible zImage header layout for CONFIG_THUMB2_KERNEL ARM: 6502/1: Thumb-2: Fix CONFIG_THUMB2_KERNEL breakage in compressed/head.S ARM: 6501/1: Thumb-2: Correct data alignment for CONFIG_THUMB2_KERNEL in mm/proc-v7.S ARM: 6500/1: Thumb-2: Correct data alignment for CONFIG_THUMB2_KERNEL in kernel/head.S ARM: 6499/1: Thumb-2: Correct data alignment for CONFIG_THUMB2_KERNEL in bootp/init.S ARM: 6498/1: vfp: Correct data alignment for CONFIG_THUMB2_KERNEL ARM: 6497/1: kexec: Correct data alignment for CONFIG_THUMB2_KERNEL ARM: 6496/1: GIC: Do not try to register more then NR_IRQS interrupts ARM: cns3xxx: Fix build with CONFIG_PCI=y
2010-12-06Merge branch 'for-rmk-fixes' of git://git.infradead.org/users/cbou/linux-cns3xxxRussell King
2010-12-06ARM: 6524/1: GIC irq desciptor bug fixChao Xie
gic_set_cpu will directly use irq_desc[]. If CONFIG_SPARSE_IRQ is enabled, there is no irq_desc[]. So we need use irq_to_desc(irq) to get the descriptor for irq. Signed-off-by: Chao Xie <chao.xie@marvell.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-05Merge branch 'fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6 * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6: parisc: Fix GSC PS/2 driver name for keyboard and mouse parisc: KittyHawk LCD fix parisc: convert the rest of the irq handlers to simple/percpu parisc: fix dino/gsc interrupts parisc: remove redundant initialization in sigsegv path of sys_rt_sigreturn
2010-12-04parisc: convert the rest of the irq handlers to simple/percpuJames Bottomley
The generic conversion eliminates the spurious no_ack and no_end routines, converts all the cascaded handlers to handle_simple_irq() and makes iosapic use a modified handle_percpu_irq() to become the same as the CPU irq's. This isn't an essential change, but it eliminates the mask/unmask overhead of handle_level_irq(). Signed-off-by: James Bottomley <James.Bottomley@suse.de> Tested-by: Helge Deller <deller@gmx.de> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2010-12-04parisc: fix dino/gsc interruptsJames Bottomley
The essential problem we're currently having is that dino (and gsc) is a cascaded CPU interrupt. Under the old __do_IRQ() handler, our CPU interrupts basically did an ack followed by an end. In the new scheme, we replaced them with level handlers which do a mask, an ack and then an unmask (but no end). Instead, with the renaming of end to eoi, we actually want to call the percpu flow handlers, because they actually have all the characteristics we want. This patch does the conversion and gets my C360 booting again. Signed-off-by: James Bottomley <James.Bottomley@suse.de> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2010-12-04ARM: 6523/1: iop: ensure sched_clock() is notraceRabin Vincent
Include sched.h to ensure sched_clock() has the notrace annotation, and mark any functions it calls as notrace too. Include sched.h to ensure sched_clock() has the notrace annotation, and mark any functions it calls as notrace too. Acked-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-04ARM: 6519/1: kuser: Fix incorrect cmpxchg syscall in kuser helpersDave Martin
The existing code invokes the syscall with rubbish in r7, due to what looks like an incorrect literal load idiom. Reviewed-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Dave Martin <dave.martin@linaro.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-03Merge branch '2.6.37-rc4-pvhvm-fixes' of ↵Linus Torvalds
git://xenbits.xen.org/people/sstabellini/linux-pvhvm * '2.6.37-rc4-pvhvm-fixes' of git://xenbits.xen.org/people/sstabellini/linux-pvhvm: xen: unplug the emulated devices at resume time xen: fix save/restore for PV on HVM guests with pirq remapping xen: resume the pv console for hvm guests too xen: fix MSI setup and teardown for PV on HVM guests xen: use PHYSDEVOP_get_free_pirq to implement find_unbound_pirq
2010-12-03ARM: mini2440: Fix Kconfig to allow kernel to buildBen Dooks
The MACH_MINI2440 entry requires the backlight LED driver, but this subsystem has not been enabled and the select of LEDS_TRIGGER_BACKLIGHT alone is insufficient to enable the necessary bits of the LED driver. Add NEW_LEDS, LEDS_CLASS and LEDS_TRIGGER to the select to allow the kernel to link. This fixes the following error: drivers/built-in.o: In function `led_trigger_set': /home/ben/linux.git/drivers/leds/led-triggers.c:116: undefined reference to `led_brightness_set' Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-12-03Merge branches 'upstream/core' and 'upstream/bugfix' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen * 'upstream/core' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen: xen: allocate irq descs on any NUMA node xen: prevent crashes with non-HIGHMEM 32-bit kernels with largeish memory xen: use default_idle xen: clean up "extra" memory handling some more * 'upstream/bugfix' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen: xen: x86/32: perform initial startup on initial_page_table xen: don't bother to stop other cpus on shutdown/reboot
2010-12-03Merge branch 'sh-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 * 'sh-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: sh: se/7724: Remove FSI/B of GPIO init code sh: se/7724: Update clock framework of FSI clock to non-legacy sh: Assume new page cache pages have dirty dcache lines. sh: boards: mach-se: use IS_ERR() instead of NULL check sh: Add div6_reparent_clks to clock framework for FSI dma: shdma: add a MODULE_ALIAS() to allow module autoloading
2010-12-03MN10300: Implement asm/syscall.hDavid Howells
Implement asm/syscall.h for the MN10300 arch. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-12-03Merge branch 'sh/urgent' into sh-fixes-for-linusPaul Mundt
2010-12-03sh: se/7724: Remove FSI/B of GPIO init codeNobuhiro Iwamatsu
se7724 board does not have FSI/B. Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-12-03sh: se/7724: Update clock framework of FSI clock to non-legacyNobuhiro Iwamatsu
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-12-02omap: PM debug: fix wake-on-timer debugfs dependencyKevin Hilman
Wakeup-on-timer code does not have/need debugfs dependency. Move the function out of debugfs ifdef. Fixes compile error when CONFIG_DEBUG_FS is disabled but PM debug is enabled. Reported-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-12-02vmalloc: eagerly clear ptes on vunmapJeremy Fitzhardinge
On stock 2.6.37-rc4, running: # mount lilith:/export /mnt/lilith # find /mnt/lilith/ -type f -print0 | xargs -0 file crashes the machine fairly quickly under Xen. Often it results in oops messages, but the couple of times I tried just now, it just hung quietly and made Xen print some rude messages: (XEN) mm.c:2389:d80 Bad type (saw 7400000000000001 != exp 3000000000000000) for mfn 1d7058 (pfn 18fa7) (XEN) mm.c:964:d80 Attempt to create linear p.t. with write perms (XEN) mm.c:2389:d80 Bad type (saw 7400000000000010 != exp 1000000000000000) for mfn 1d2e04 (pfn 1d1fb) (XEN) mm.c:2965:d80 Error while pinning mfn 1d2e04 Which means the domain tried to map a pagetable page RW, which would allow it to map arbitrary memory, so Xen stopped it. This is because vm_unmap_ram() left some pages mapped in the vmalloc area after NFS had finished with them, and those pages got recycled as pagetable pages while still having these RW aliases. Removing those mappings immediately removes the Xen-visible aliases, and so it has no problem with those pages being reused as pagetable pages. Deferring the TLB flush doesn't upset Xen because it can flush the TLB itself as needed to maintain its invariants. When unmapping a region in the vmalloc space, clear the ptes immediately. There's no point in deferring this because there's no amortization benefit. The TLBs are left dirty, and they are flushed lazily to amortize the cost of the IPIs. This specific motivation for this patch is an oops-causing regression since 2.6.36 when using NFS under Xen, triggered by the NFS client's use of vm_map_ram() introduced in 56e4ebf877b60 ("NFS: readdir with vmapped pages") . XFS also uses vm_map_ram() and could cause similar problems. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Nick Piggin <npiggin@kernel.dk> Cc: Bryan Schumaker <bjschuma@netapp.com> Cc: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: Alex Elder <aelder@sgi.com> Cc: Dave Chinner <david@fromorbit.com> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-12-02xen: unplug the emulated devices at resume timeStefano Stabellini
Early after being resumed we need to unplug again the emulated devices. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2010-12-02xen: fix MSI setup and teardown for PV on HVM guestsStefano Stabellini
When remapping MSIs into pirqs for PV on HVM guests, qemu is responsible for doing the actual mapping and unmapping. We only give qemu the desired pirq number when we ask to do the mapping the first time, after that we should be reading back the pirq number from qemu every time we want to re-enable the MSI. This fixes a bug in xen_hvm_setup_msi_irqs that manifests itself when trying to enable the same MSI for the second time: the old MSI to pirq mapping is still valid at this point but xen_hvm_setup_msi_irqs would try to assign a new pirq anyway. A simple way to reproduce this bug is to assign an MSI capable network card to a PV on HVM guest, if the user brings down the corresponding ethernet interface and up again, Linux would fail to enable MSIs on the device. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2010-12-01[S390] nohz/s390: fix arch_needs_cpu() return value on offline cpusHeiko Carstens
This fixes the same problem as described in the patch "nohz: fix printk_needs_cpu() return value on offline cpus" for the arch_needs_cpu() primitive: arch_needs_cpu() may return 1 if called on offline cpus. When a cpu gets offlined it schedules the idle process which, before killing its own cpu, will call tick_nohz_stop_sched_tick(). That function in turn will call arch_needs_cpu() in order to check if the local tick can be disabled. On offline cpus this function should naturally return 0 since regardless if the tick gets disabled or not the cpu will be dead short after. That is besides the fact that __cpu_disable() should already have made sure that no interrupts on the offlined cpu will be delivered anyway. In this case it prevents tick_nohz_stop_sched_tick() to call select_nohz_load_balancer(). No idea if that really is a problem. However what made me debug this is that on 2.6.32 the function get_nohz_load_balancer() is used within __mod_timer() to select a cpu on which a timer gets enqueued. If arch_needs_cpu() returns 1 then the nohz_load_balancer cpu doesn't get updated when a cpu gets offlined. It may contain the cpu number of an offline cpu. In turn timers get enqueued on an offline cpu and not very surprisingly they never expire and cause system hangs. This has been observed 2.6.32 kernels. On current kernels __mod_timer() uses get_nohz_timer_target() which doesn't have that problem. However there might be other problems because of the too early exit tick_nohz_stop_sched_tick() in case a cpu goes offline. This specific bug was indrocuded with 3c5d92a0 "nohz: Introduce arch_needs_cpu". In this case a cpu hotplug notifier is used to fix the issue in order to keep the normal/fast path small. All we need to do is to clear the condition that makes arch_needs_cpu() return 1 since it is just a performance improvement which is supposed to keep the local tick running for a short period if a cpu goes idle. Nothing special needs to be done except for clearing the condition. Cc: stable@kernel.org Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-12-01Merge branch 'sh/cachetlb' into sh-fixes-for-linusPaul Mundt
2010-12-01sh: Assume new page cache pages have dirty dcache lines.Paul Mundt
This follows the ARM change c01778001a4f5ad9c62d882776235f3f31922fdd ("ARM: 6379/1: Assume new page cache pages have dirty D-cache") for the same rationale: There are places in Linux where writes to newly allocated page cache pages happen without a subsequent call to flush_dcache_page() (several PIO drivers including USB HCD). This patch changes the meaning of PG_arch_1 to be PG_dcache_clean and always flush the D-cache for a newly mapped page in update_mmu_cache(). This addresses issues seen with executing binaries from MMC, in addition to some of the other HCDs that don't explicitly do cache management for their pipe-in buffers. Requested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-11-30sparc: Write to prom console using indirect buffer.David S. Miller
sparc64 systems have a restriction in that passing in buffer addressses above 4GB to prom calls is not reliable. We end up violating this when we do prom console writes, because we use an on-stack buffer to translate '\n' into '\r\n'. So instead, do this translation into an intermediate buffer, which is in the kernel image and thus below 4GB, then pass that to the PROM console write calls. On the 32-bit side we don't have to deal with any of these issues, so the new prom_console_write_buf() uses the existing prom_nbputchar() implementation. However we can now mark those routines static. Since the 64-bit side completely uses new code we can delete the putchar bits as they are now completely unused. Signed-off-by: David S. Miller <davem@davemloft.net>