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2011-05-25mtd: bfin: convert to mtd_device_register()Jamie Iles
Convert to mtd_device_register() and remove the CONFIG_MTD_PARTITIONS preprocessor conditionals as partitioning is always available. Cc: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Jamie Iles <jamie@jamieiles.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-05-25mtd: s3c2410: remove CONFIG_MTD_PARTITIONS testJamie Iles
MTD is now always build with partitioning support so this can be removed. Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Jamie Iles <jamie@jamieiles.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-05-25mtd: pxa: convert to mtd_device_register()Jamie Iles
Convert to mtd_device_register() and remove the CONFIG_MTD_PARTITIONS preprocessor conditionals as partitioning is always available. Cc: Cc: David Woodhouse <dwmw2@infradead.org> Cc: Artem Bityutskiy <dedekind1@gmail.com> Signed-off-by: Jamie Iles <jamie@jamieiles.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-05-25mtd: ixp: convert to mtd_device_register()Jamie Iles
Convert to mtd_device_register() and remove the CONFIG_MTD_PARTITIONS preprocessor conditionals as partitioning is always available. Cc: Imre Kaloz <kaloz@openwrt.org> Cc: Krzysztof Halasa <khc@pm.waw.pl> Signed-off-by: Jamie Iles <jamie@jamieiles.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-05-25arm: mtd: gemini: convert to mtd_device_register()Jamie Iles
Convert to mtd_device_register() and remove the CONFIG_MTD_PARTITIONS preprocessor conditionals as partitioning is always available. Cc: Hans Ulli Kroll <ulli.kroll@googlemail.com> Signed-off-by: Jamie Iles <jamie@jamieiles.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-05-24mmc: tegra: add pm_flagsVenkat Rao
Enable fast bcm4329 WIFI suspend/resume on Tegra2 board. This patch allows the mach-tegra support to tell the tegra MMC host controller to NOT turn off power for the MMC controller the WIFI part lives behind. Thus bcm4329 firmware doesn't need to be reloaded. Signed-off-by: Venkat Rao <vrao@broadcom.com> Tested-by: Grant Grundler <grundler@chromium.org> Reviewed-by: Olof Johansson <olof@lixom.net> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-05-24Merge branch 'for-linus/2640/i2c' of git://git.fluff.org/bjdooks/linuxLinus Torvalds
* 'for-linus/2640/i2c' of git://git.fluff.org/bjdooks/linux: (21 commits) mach-ux500: set proper I2C platform data from MOP500s i2c-nomadik: break out single messsage transmission i2c-nomadik: reset the hw after status check i2c-nomadik: remove the unnecessary delay i2c-nomadik: change the TX and RX threshold i2c-nomadik: add code to retry on timeout failure i2c-nomadik: use pm_runtime API i2c-nomadik: print abort cause only on abort tag i2c-nomadik: correct adapter timeout initialization i2c-nomadik: remove the redundant error message i2c-nomadik: corrrect returned error numbers i2c-nomadik: fix speed enumerator i2c-nomadik: make i2c timeout specific per i2c bus i2c-nomadik: add regulator support i2c: i2c-sh_mobile bus speed platform data V2 i2c: i2c-sh_mobile clock string removal i2c-eg20t: Support new device ML7223 IOH i2c: tegra: Add de-bounce cycles. i2c: tegra: fix repeated start handling i2c: tegra: recover from spurious interrupt storm ...
2011-05-24x86, cpufeature: Update CPU feature RDRND to RDRANDKees Cook
The Intel manual changed the name of the CPUID bit to match the instruction name. We should follow suit for sanity's sake. (See Intel SDM Volume 2, Table 3-20 "Feature Information Returned in the ECX Register".) [ hpa: we can only do this at this time because there are currently no CPUs with this feature on the market, hence this is pre-hardware enabling. However, Cc:'ing stable so that stable can present a consistent ABI. ] Signed-off-by: Kees Cook <kees.cook@canonical.com> Link: http://lkml.kernel.org/r/20110524232926.GA27728@outflux.net Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: <stable@kernel.org> v2.6.36-39
2011-05-25mach-ux500: set proper I2C platform data from MOP500sLinus Walleij
This specifies the new per-platform timeout per I2C bus and switches the I2C buses to fast mode, and increase the FIFO depth to 8 for reads and writes. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2011-05-25i2c-nomadik: fix speed enumeratorLinus Walleij
The I2C speed enumerators in the i2c-nomadik header file were in the wrong order. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2011-05-25i2c-nomadik: make i2c timeout specific per i2c busVirupax Sadashivpetimath
Add option to have different i2c timeout delay for different i2c buses specified in platform data. Default to the old value unless specified. Signed-off-by: Virupax Sadashivpetimath <virupax.sadashivpetimath@stericsson.com> Reviewed-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2011-05-25Merge branch 'davinci-next' of ↵Russell King
git://gitorious.org/linux-davinci/linux-davinci into devel-stable
2011-05-25Merge branch 'devicetree/arm-next' of git://git.secretlab.ca/git/linux-2.6 ↵Russell King
into devel-stable
2011-05-24PM / Hibernate: Remove arch_prepare_suspend()Rafael J. Wysocki
All architectures supporting hibernation define arch_prepare_suspend() as an empty function, so remove it. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2011-05-24mach-ux500: voltage domain regulators for DB8500Bengt Jonsson
The DB8500 has ePOD:s (electronic power domains) which are possible to switch on/off to deactivate silicon blocks on the DB8500 SoC by cutting their power without retention. We model these as simple regulators with one bit on/off settings. Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Bengt Jonsson <bengt.g.jonsson@stericsson.com> Signed-off-by: Sundar Iyer <sundar.iyer@stericsson.com> Signed-off-by: Jonas Aberg <jonas.aberg@stericsson.com> Signed-off-by: Virupax Sadashivpetimath <virupax.sadashivpetimath@stericsson.com> Signed-off-by: Martin Persson <martin.persson@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2011-05-24mach-ux500: move CPUfreq driver to cpufreq subsystemLinus Walleij
As part of the ARM arch subsystem migration, move the DB8500 cpufreq driver to drivers/cpufreq as discussed with Dave Jones. The Makefile is not updated in order to avoid cross-subsystem conflicts for this file in merges. Cc: Arnd Bergmann <arnd@arndb.de> Acked-by: Dave Jones <davej@redhat.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2011-05-24mfd: add DB5500 PRCMU driverLinus Walleij
This adds the DB5500 PRCMU driver. Right now this one is pretty restricted in functionality, exposing a simple interface to send I2C messages. Acked-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2011-05-24mfd: update DB8500 PRCMU driverMattias Nilsson
This updates the DB8500 PRCMU driver to the latest version available internally. Nominally we would update the dependent CPUfreq driver at the same time but since that is being moved around in this patch set we postpone that by simply deactivating it for the time being. This is a snapshot of the current PRCMU firmware API as it looks right now. The PRCMU firmware is still subject to change. This also updates the CPUfreq driver to a newer version that will utilize the new API. Acked-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Mattias Nilsson <mattias.i.nilsson@stericsson.com> Signed-off-by: Martin Persson <martin.persson@stericsson.com> Signed-off-by: Per Fransson <per.xx.fransson@stericsson.com> Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Sebastien Rault <sebastien.rault@stericsson.com> Signed-off-by: Bengt Jonsson <bengt.g.jonsson@stericsson.com> Signed-off-by: Rickard Andersson <rickard.andersson@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2011-05-24mach-ux500: move the DB8500 PRCMU driver to MFDLinus Walleij
We have decided that this function arbiter fits better in the MFD subsystem. Since we need to concatenate the split header files we move it basically like this: mv mach-ux500/prcmu-db8500.c drivers/mfd/db8500-prcmu.c mv mach-ux500/include/mach/prcmu-defs.h include/linux/mfd/db8500-prcmu.h mv mach-ux500/include/mach/prcmu-regs.h drivers/mfd/db8500-prcmu-regs.h mach-ux500/include/mach/prcmu.h >> include/linux/mfd/db8500-prcmu.h rm arch/arm/mach-ux500/include/mach/prcmu.h Then we update different #include statements and Makefile orders etc to make the PRCMU driver compile, link and boot in the new place without really changing any code. Acked-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2011-05-24mach-ux500: make PRCMU base address dynamicLinus Walleij
This makes the PRCMU base address be selected at runtime for U8500 and U5500 instead of being compiled-in. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2011-05-24mach-ux500: rename PRCMU driver per SoCLinus Walleij
This renames the prcmu.c file to prcmu-db8500.c so as to indicate that it is for this one SoC. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2011-05-24mach-ux500: update ASIC version detectionLinus Walleij
This makes the core detect the DB8500 V2.0 and V2.1 ASICs, and add a convenience macro for "V2 or later". Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2011-05-24mach-ux500: update SoC and board IRQ handlingRabin Vincent
This splits out a per-SoC IRQ range handling, so that the DB8500 and DB5500 SoC:s can reuse aproximately the same IRQ range with the largest span setting the roof. The same change is done for the boards, mutatis mutandis, with a new file for the U5500 board. Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2011-05-24mach-ux500: update the DB5500 register fileLinus Walleij
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2011-05-24mach-ux500: update the DB8500 register fileLinus Walleij
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2011-05-24Merge 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: (29 commits) [S390] cpu hotplug: fix external interrupt subclass mask handling [S390] oprofile: dont access lowcore [S390] oprofile: add missing irq stats counter [S390] Ignore sendmmsg system call note wired up warning [S390] s390,oprofile: fix compile error for !CONFIG_SMP [S390] s390,oprofile: fix alert counter increment [S390] Remove unused includes in process.c [S390] get CPC image name [S390] sclp: event buffer dissection [S390] chsc: process channel-path-availability information [S390] refactor page table functions for better pgste support [S390] merge page_test_dirty and page_clear_dirty [S390] qdio: prevent compile warning [S390] sclp: remove unnecessary sendmask check [S390] convert old cpumask API into new one [S390] pfault: cleanup code [S390] pfault: cpu hotplug vs missing completion interrupts [S390] smp: add __noreturn attribute to cpu_die() [S390] percpu: implement arch specific irqsafe_cpu_ops [S390] vdso: disable gcov profiling ...
2011-05-24Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (40 commits) Input: ADP5589 - new driver for I2C Keypad Decoder and I/O Expander Input: tsc2007 - add X, Y and Z fuzz factors to platform data Input: tsc2007 - add poll_period parameter to platform data Input: tsc2007 - add poll_delay parameter to platform data Input: tsc2007 - add max_rt parameter to platform data Input: tsc2007 - debounce pressure measurement Input: ad714x - fix captouch wheel option algorithm Input: ad714x - allow platform code to specify irqflags Input: ad714x - fix threshold and completion interrupt masks Input: ad714x - fix up input configuration Input: elantech - remove support for proprietary X driver Input: elantech - report multitouch with proper ABS_MT messages Input: elantech - export pressure and width when supported Input: elantech - describe further the protocol Input: atmel_tsadcc - correct call to input_free_device Input: add driver FSL MPR121 capacitive touch sensor Input: remove useless synchronize_rcu() calls Input: ads7846 - fix gpio_pendown configuration Input: ads7846 - add possibility to use external vref on ads7846 Input: rotary-encoder - add support for half-period encoders ...
2011-05-24Merge branch 'for-2.6.40' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu * 'for-2.6.40' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: percpu: Unify input section names percpu: Avoid extra NOP in percpu_cmpxchg16b_double percpu: Cast away printk format warning percpu: Always align percpu output section to PAGE_SIZE Fix up fairly trivial conflict in arch/x86/include/asm/percpu.h as per Tejun
2011-05-24Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: (22 commits) m68knommu: Use generic show_interrupts() coldfire_qspi compile fix m68k: merge the mmu and non-mmu versions of sys_m68k.c m68knommu: use asm-generic/bitops/ext2-atomic.h m68knommu: Remove obsolete #include <linux/sys.h> m68k: merge mmu and non-mmu versions of asm-offsets.c m68k: merge non-mmu and mmu versions of m68k_ksyms.c m68knommu: remove un-needed exporting of COLDFIRE symbols m68knommu: move EXPORT of kernel_thread to function definition m68knommu: move EXPORT of local checksumming functions to definitions m68knommu: move EXPORT of dump_fpu to function definition m68knommu: clean up mm/init_no.c m68k: merge the mmu and non-mmu mm/Makefile m68k: mv kmap_mm.c to kmap.c m68knommu: remove stubs for __ioremap() and iounmap() m68knommu: remove unused kernel_set_cachemode() m68k: let Makefile sort out compiling mmu and non-mmu lib/checksum.c m68k: remove duplicate memcpy() implementation m68k: remove duplicate memset() implementation m68k: remove duplicate memmove() implementation ...
2011-05-24x86, ioapic: Restore ioapic entries during resume properlySuresh Siddha
In mask/restore_ioapic_entries() we should be restoring ioapic entries when ioapics[apic].saved_registers is not NULL. Fix the typo and address the resume hang regression reported by Linus. This was not found sooner because the systems where these changes were tested on kept the IO-APIC entries intact over resume. Reported-and-tested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Daniel J Blueman <daniel.blueman@gmail.com> Link: http://lkml.kernel.org/r/1306259131.7171.7.camel@sbsiddha-MOBL3.sc.intel.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-05-24seqlock: Get rid of SEQLOCK_UNLOCKEDEric Dumazet
All static seqlock should be initialized with the lockdep friendly __SEQLOCK_UNLOCKED() macro. Remove legacy SEQLOCK_UNLOCKED() macro. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: David Miller <davem@davemloft.net> Link: http://lkml.kernel.org/r/%3C1306238888.3026.31.camel%40edumazet-laptop%3E Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-05-24x86-64: Optimize vDSO time()Andy Lutomirski
This function just reads a 64-bit variable that's updated atomically, so we don't need any locks. Signed-off-by: Andy Lutomirski <luto@mit.edu> Cc: Andi Kleen <andi@firstfloor.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Borislav Petkov <bp@amd64.org> Link: http://lkml.kernel.org/r/%3C40e2700f8cda4d511e5910be1e633025d28b36c2.1306156808.git.luto%40mit.edu%3E Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-05-24x86-64: Add time to vDSOAndy Lutomirski
The only fast implementation of time(2) we expose is through the vsyscall page and we want to get userspace to stop using the vsyscall page. So make it available through the vDSO as well. This is essentially a cut-n-paste job. Signed-off-by: Andy Lutomirski <luto@mit.edu> Cc: Andi Kleen <andi@firstfloor.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Borislav Petkov <bp@amd64.org> Link: http://lkml.kernel.org/r/%3Cbf963bac5207de4b29613f27c42705e4371812a8.1306156808.git.luto%40mit.edu%3E Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-05-24x86-64: Turn off -pg and turn on -foptimize-sibling-calls for vDSOAndy Lutomirski
The vDSO isn't part of the kernel, so profiling and kernel backtraces don't really matter. Signed-off-by: Andy Lutomirski <luto@mit.edu> Cc: Andi Kleen <andi@firstfloor.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Borislav Petkov <bp@amd64.org> Link: http://lkml.kernel.org/r/%3C23087b738c037342abb53f2f07b9bef89ceaeea3.1306156808.git.luto%40mit.edu%3E Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-05-24x86-64: Move vread_tsc into a new file with sensible optionsAndy Lutomirski
vread_tsc is short and hot, and it's userspace code so the usual reasons to enable -pg and turn off sibling calls don't apply. (OK, turning off sibling calls has no effect. But it might someday...) As an added benefit, tsc.c is profilable now. Signed-off-by: Andy Lutomirski <luto@mit.edu> Cc: Andi Kleen <andi@firstfloor.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Borislav Petkov <bp@amd64.org> Link: http://lkml.kernel.org/r/%3C99c6d7f5efa3ccb65b4ac6eb443e1ab7bad47d7b.1306156808.git.luto%40mit.edu%3E Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-05-24x86-64: Vclock_gettime(CLOCK_MONOTONIC) can't ever see nsec < 0Andy Lutomirski
vclock_gettime's do_monotonic helper can't ever generate a negative nsec value, so it doesn't need to check whether it's negative. In the CLOCK_MONOTONIC_COARSE case, ns can't ever exceed 2e9-1, so we can avoid the loop entirely. This saves a single easily-predicted branch. Signed-off-by: Andy Lutomirski <luto@mit.edu> Cc: Andi Kleen <andi@firstfloor.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Borislav Petkov <bp@amd64.org> Link: http://lkml.kernel.org/r/%3Cd6d528d32c7a21618057cfc9005942a0fe5cb54a.1306156808.git.luto%40mit.edu%3E Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-05-24x86-64: Don't generate cmov in vread_tscAndy Lutomirski
vread_tsc checks whether rdtsc returns something less than cycle_last, which is an extremely predictable branch. GCC likes to generate a cmov anyway, which is several cycles slower than a predicted branch. This saves a couple of nanoseconds. Signed-off-by: Andy Lutomirski <luto@mit.edu> Cc: Andi Kleen <andi@firstfloor.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Borislav Petkov <bp@amd64.org> Link: http://lkml.kernel.org/r/%3C561280649519de41352fcb620684dfb22bad6bac.1306156808.git.luto%40mit.edu%3E Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-05-24x86-64: Remove unnecessary barrier in vread_tscAndy Lutomirski
RDTSC is completely unordered on modern Intel and AMD CPUs. The Intel manual says that lfence;rdtsc causes all previous instructions to complete before the tsc is read, and the AMD manual says to use mfence;rdtsc to do the same thing. From a decent amount of testing [1] this is enough to make rdtsc be ordered with respect to subsequent loads across a wide variety of CPUs. On Sandy Bridge (i7-2600), this improves a loop of clock_gettime(CLOCK_MONOTONIC) by more than 5 ns/iter. [1] https://lkml.org/lkml/2011/4/18/350 Signed-off-by: Andy Lutomirski <luto@mit.edu> Cc: Andi Kleen <andi@firstfloor.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Borislav Petkov <bp@amd64.org> Link: http://lkml.kernel.org/r/%3C1c158b9d74338aa5361f96dd473d0e6a58235302.1306156808.git.luto%40mit.edu%3E Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-05-24x86-64: Clean up vdso/kernel shared variablesAndy Lutomirski
Variables that are shared between the vdso and the kernel are currently a bit of a mess. They are each defined with their own magic, they are accessed differently in the kernel, the vsyscall page, and the vdso, and one of them (vsyscall_clock) doesn't even really exist. This changes them all to use a common mechanism. All of them are delcared in vvar.h with a fixed address (validated by the linker script). In the kernel (as before), they look like ordinary read-write variables. In the vsyscall page and the vdso, they are accessed through a new macro VVAR, which gives read-only access. The vdso is now loaded verbatim into memory without any fixups. As a side bonus, access from the vdso is faster because a level of indirection is removed. While we're at it, pack jiffies and vgetcpu_mode into the same cacheline. Signed-off-by: Andy Lutomirski <luto@mit.edu> Cc: Andi Kleen <andi@firstfloor.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Borislav Petkov <bp@amd64.org> Link: http://lkml.kernel.org/r/%3C7357882fbb51fa30491636a7b6528747301b7ee9.1306156808.git.luto%40mit.edu%3E Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-05-24x86: Get rid of asmregparmRichard Weinberger
As UML does no longer need asmregparm we can remove it. Signed-off-by: Richard Weinberger <richard@nod.at> Cc: namhyung@gmail.com Cc: davem@davemloft.net Cc: fweisbec@gmail.com Cc: dhowells@redhat.com Link: http://lkml.kernel.org/r/%3C1306189085-29896-1-git-send-email-richard%40nod.at%3E Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-05-24um: Use RWSEM_GENERIC_SPINLOCK on x86Richard Weinberger
Commit d12337 (rwsem: Remove redundant asmregparm annotation) broke rwsem on UML. As we cannot compile UML with -mregparm=3 and keeping asmregparm only for UML is inadequate the easiest solution is using RWSEM_GENERIC_SPINLOCK. Thanks to Thomas Gleixner for the idea. Reported-by: Toralf Förster <toralf.foerster@gmx.de> Tested-by: Toralf Förster <toralf.foerster@gmx.de> Signed-off-by: Richard Weinberger <richard@nod.at> Cc: user-mode-linux-devel@lists.sourceforge.net Cc: <stable@kernel.org> # .39.x Link: http://lkml.kernel.org/r/%3C1306183893-26655-1-git-send-email-richard%40nod.at%3E Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-05-24oprofile, powerpc: Handle events that raise an exception without overflowingEric B Munson
Commit 0837e3242c73566fc1c0196b4ec61779c25ffc93 fixes a situation on POWER7 where events can roll back if a specualtive event doesn't actually complete. This can raise a performance monitor exception. We need to catch this to ensure that we reset the PMC. In all cases the PMC will be less than 256 cycles from overflow. This patch lifts Anton's fix for the problem in perf and applies it to oprofile as well. Signed-off-by: Eric B Munson <emunson@mgebm.net> Cc: <stable@kernel.org> # as far back as it applies cleanly Tested-by: Maynard Johnson <maynardj@us.ibm.com> Signed-off-by: Robert Richter <robert.richter@amd.com>
2011-05-24sh: Update shmin to reflect PIO dependency.Paul Mundt
shmin uses __set_io_port_base() for legacy I/O mapping that ethernet and other SuperI/O functions depend on. Ensure that PIO support is built in until the board is updated for MMIO properly. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-05-24sh: arch/sh/kernel/process_32.c needs linux/prefetch.h.Paul Mundt
Trivial build fix for certain configurations that don't grab linux/prefetch.h via alternate means (specifically SH-2 and SH-3 parts). Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-05-24Merge branch 'fixes-2.6.39' into for-2.6.40Tejun Heo
2011-05-24Merge branch 'for_2.6.40/pm-cleanup' of ↵Tony Lindgren
ssh://master.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm into omap-for-linus
2011-05-24Merge branch 'for-tony' of ↵Tony Lindgren
master.kernel.org:/pub/scm/linux/kernel/git/balbi/usb into omap-for-linus
2011-05-24Merge branch 'for-paul' of git://gitorious.org/linux-omap-dss2/linuxPaul Mundt
Conflicts: drivers/video/omap2/dss/dsi.c drivers/video/omap2/dss/dss_features.c drivers/video/omap2/dss/dss_features.h Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-05-24ARM: switch mackerel to dynamically manage the platform cameraGuennadi Liakhovetski
Use soc_camera_platform helper functions to dynamically manage the camera device. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-05-24Merge branch 'master' of ↵Paul Mundt
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into rmobile-latest
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