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2013-06-20KVM: s390: Check for PSTATE when handling DIAGNOSEThomas Huth
DIAGNOSE is a privileged instruction and thus we must make sure that we are in supervisor mode before taking any other actions. Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-06-20KVM: s390: Privileged operation checks moved to instruction handlersThomas Huth
We need more fine-grained control about the point in time when we check for privileged instructions, since the exceptions that can happen during an instruction have a well-defined priority. For example, for the PFMF instruction, the check for PGM_PRIVILEGED_OP must happen after the check for PGM_OPERATION since the latter has a higher precedence - thus the check for privileged operation must not be done in kvm_s390_handle_b9() already. Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-06-20KVM: s390: Privileged operation check for TPROTThomas Huth
TPROT is a privileged instruction and thus should generate a privileged operation exception when the problem state bit is not cleared in the PSW. Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-06-20KVM: s390: Renamed PGM_PRIVILEGED_OPERATIONThomas Huth
Renamed the PGM_PRIVILEGED_OPERATION define to PGM_PRIVILEGED_OP since this define was way longer than the other PGM_* defines and caused the code often to exceed the 80 columns limit when not split to multiple lines. Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-06-20ARM: dts: bcm281xx: change comment to C89 styleMatt Porter
CodingStyle does not allow C99 style comments. Since the dts files live in the kernel for now, make this compliant. Signed-off-by: Matt Porter <matt.porter@linaro.org> Acked-by: Christian Daudt <csd@broadcom.com>
2013-06-20ARM: mmc: bcm281xx SDHCI driver (dt mods)Christian Daudt
Add SDHCI bindings for the Broadcom 281xx SoCs. Changes from V2: - Documentation cleanups Changes from V1: - split original patch into 2, one for driver and this one for dt Signed-off-by: Christian Daudt <csd@broadcom.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2013-06-20Merge branch 'for_3.11/dts' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/bcousson/linux-omap-dt into next/dt From Benoit Cousson: omap devicetree changes for v3.11 merge window - Add mandatory DT support for missing IPs, like USB host, bandgap, LED, NAND, LAN, CPSW, PWM for OMAP and AMXX devices. - Introduce new AM43x silicon. * 'for_3.11/dts' of git://git.kernel.org/pub/scm/linux/kernel/git/bcousson/linux-omap-dt: (52 commits) ARM: dts: omap5-uevm: Provide USB Host PHY clock frequency ARM: dts: omap4-panda: Fix DVI EDID reads ARM: dts: omap4-panda: Add USB Host support ARM: dts: AM43x EPOS EVM support ARM: dts: OMAP5: Add bandgap DT entry ARM: dts: AM33XX: Add pinmux configuration for CPSW to am335x EVM ARM: dts: AM33XX: Add pinmux configuration for CPSW to EVMsk ARM: dts: AM33XX: Add pinmux configuration for CPSW to beaglebone ARM: dts: omap3-overo: Add default trigger for TWL4030 LED ARM: dts: omap3-tobi: Correct polarity for GPIO LED ARM: dts: omap3-tobi: Add SMSC911X node ARM: dts: OMAP3: Include IRQ header ARM: dts: Protect pinctrl headers against multiple inclusions ARM: AM33XX: clock data: Enable clkout2 as part of init ARM: AM33XX: clock: Add debugSS clock nodes ARM: dts: OMAP5: Add Palmas MFD node and regulator nodes ARM: dts: AM33XX: Add PWM backlight DT data to am335x-evmsk ARM: dts: AM33XX: Add PWM backlight DT data to am335x-evm ARM: dts: AM33XX: Add PWMSS device tree nodes ARM: dts: OMAP4460: Add bandgap entry for OMAP4460 devices ... Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Tony Lindgren <tony@atomide.com>
2013-06-20Merge tag 'samsung-defconfig-1' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/soc From Kukjin Kim: update exynos_defconfig - enable GPIO buttons and RTC drivers * tag 'samsung-defconfig-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: exynos_defconfig: Enable GPIO buttons and RTC drivers Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-20Merge tag 'remove-nondt-exynos-3' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/soc From Kukjin Kim: cleanup and removing dead code for only support DT for exynos - remove board file for exynos - remove legacy files which are not used anymore - decouple ARCH_EXYNOS from PLAT_S5P * tag 'remove-nondt-exynos-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: (35 commits) ARM: EXYNOS: Remove remaining dead code after non-DT support removal ARM: EXYNOS: Remove legacy L2X0 initialization ARM: EXYNOS: Use exynos_init_io() as map_io callback ARM: EXYNOS: Remove custom init_irq callbacks ARM: EXYNOS: Remove mach/regs-usb-phy.h header thermal: exynos: Support both EXYNOS4X12 SoCs ARM: EXYNOS: Remove unused base addresses from mach/map.h header ARM: EXYNOS: Remove mach/irqs.h header ARM: EXYNOS: Select SPARSE_IRQ for Exynos ARM: SAMSUNG: Make legacy MFC support code depend on SAMSUNG_ATAGS ARM: EXYNOS: Remove mach/regs-gpio.h header ARM: EXYNOS: Remove mach/gpio.h ARM: EXYNOS: Remove setup-i2c0.c ARM: EXYNOS: Do not select legacy Kconfig symbols any more ARM: SAMSUNG: Include most of mach/ headers conditionally ARM: EXYNOS: Decouple ARCH_EXYNOS from PLAT_S5P USB: Check for ARCH_EXYNOS separately platform: Check for ARCH_EXYNOS separately ARM: SAMSUNG: Compile legacy IRQ and GPIO PM code only with ATAGS support ARM: EXYNOS: Provide compatibility stubs for PM code in pm-core.h header ... Conflicts: arch/arm/mach-exynos/Kconfig Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-20Merge tag 's3c24xx-pinctrl-2' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/drivers From Kukjin Kim: based on s3c24xx-pinctrl - use correct header for chained_irq functions for s3c24xx-pinctrl * tag 's3c24xx-pinctrl-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: pinctrl: s3c24xx: use correct header for chained_irq functions Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-20Merge tag 'common-clk-audio' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/drivers From Kukjin Kim: based on exynos-dt-2 and s3c24xx-dt-2 - use #include for all Samsung DT - add clk for exynos audio subsystem (audss) and i2s - support audss and i2s for exynos5250 * tag 'common-clk-audio' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: clk: exynos5250: Add enum entries for divider clock of i2s1 and i2s2 ARM: dts: Update Samsung I2S documentation ARM: dts: add clock provider information for i2s controllers in Exynos5250 ARM: dts: add Exynos audio subsystem clock controller node clk: samsung: register audio subsystem clocks using common clock framework ARM: dts: use #include for all device trees for Samsung Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-20Merge branches 'samsung/exynos-dt2' and 'samsung/s3c24xx-dt2' into next/driversArnd Bergmann
This is the merge base for samsung/common-clk-audio Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-20Merge tag 's3c24xx-dt-2' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/dt From Kukjin Kim: based on tags/s3c24xx-dt-1 - update uart addresses in s3c2416-dt auxdata due to removing S3C2410_PA_UARTX * tag 's3c24xx-dt-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: S3C24XX: update uart addresses in s3c2416-dt auxdata Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-20Merge tag 'exynos-dt-2' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/dt From Kukjin Kim: 2nd exynos dt update based on tags/exynos-dt-1 - enable RTC on exynos5250 snow and Arndale boards - add support LCD and PWM for exynos4210 Origen board - update bootargs to support 8GiB for exynos5440 SSDK5440 and SD5v1 boards - enable spi and add opp level for exynos5440 - add example doc for samsung-pinctrl dt bindings * tag 'exynos-dt-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: dts: Set BUCK7 as always on for Origen board ARM: dts: Add FIMD node to Origen4210 board ARM: dts: Add LCD related pinctrl entries for exynos4210 ARM: dts: Add PWM related pinctrl entries for exynos4210 Documentation: Add examples to samsung-pinctrl device tree bindings documentation ARM: dts: Enable RTC node for exynos5250-snow ARM: dts: Enable RTC node for Arndale ARM: dts: Removing pdma for exynos5440 ARM: dts: update bootargs to support 8GiB for SSDK5440 and SD5v1 ARM: dts: Add more opp levels in exynos5440 ARM: dts: Add wm8994 regulator support on smdk5250 ARM: dts: enable spi for EXYNOS5440 SOC Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-20Merge tag 'exynos-arch-2' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/soc From Kukjin Kim: arch/arm/mach-exynos update - enable XHCI on exynos5 - enable Pinctrl on exynos4 and exynos5 - calling scu_enable() is only available on Cortex-A9 * tag 'exynos-arch-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: EXYNOS: call scu_enable() only in case of cortex-A9 processor ARM: EXYNOS: Select PINCTRL_EXYNOS for exynos4/5 at chip level ARM: EXYNOS: Enable XHCI support on exynos5 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-20Merge tag 'omap-for-v3.11/mailbox-signed' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/drivers From Tony Lindgren: Move OMAP Mailbox framework to drivers via Suman Anna <s-anna@ti.com> The OMAP Mailbox driver framework is moved out of arch/arm folder into drivers/mailbox folder, to re-enable building it and also serve as a baseline for adapting to the new mailbox driver framework. The changes mainly contain: - a minor bug fix and cleanup of mach-specific mailbox code - remove any header dependencies from plat-omap for multi-platform support - represent mailbox device data through platform data/hwmod attrs - move the omap mailbox code out of plat-omap/mach-omapX to drivers/mailbox folder * tag 'omap-for-v3.11/mailbox-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: mailbox/omap: move the OMAP mailbox framework to drivers ARM: OMAP2+: add user and fifo info to mailbox platform data ARM: OMAP2+: mbox: remove dependencies with soc.h omap: mailbox: correct the argument type for irq ops omap: mailbox: call request_irq after mbox queues are allocated omap: mailbox: check iomem resource before dereferencing it Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-20Merge tag 'omap-for-v3.11/gpmc-part2-signed' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/drivers From Tony Lindgren: GPMC suspend patch that was left out of the earlier omap-for-v3.11/gpmc-signed branch because of a compile error it caused. The compile error is fixed in this version. * tag 'omap-for-v3.11/gpmc-part2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: OMAP2+: gpmc: Low power transition support Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-20Merge tag 'omap-for-v3.11/board-signed' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/boards From Tony Lindgren: Minor board changes for v3.11 merge window. These are tapering down finally as we're getting closer to making omap2+ DT only. * tag 'omap-for-v3.11/board-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: omap2plus_defconfig: enable USB_PHY and NOP_USB_XCEIV ARM: OMAP1: nokia770: enable Tahvo ARM: OMAP3EVM: Marking omap3_evm_display_init() with CONFIG_BROKEN arm: omap: board-overo: reset GPIO for SMSC911x Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-20i2c: i801: SMBus patch for Intel Coleto Creek DeviceIDsSeth Heasley
This patch adds the i801 SMBus Controller DeviceIDs for the Intel Coleto Creek PCH. Signed-off-by: Seth Heasley <seth.heasley@intel.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2013-06-20drm/radeon: update lockup tracking when scheduling in empty ringJerome Glisse
There might be issue with lockup detection when scheduling on an empty ring that have been sitting idle for a while. Thus update the lockup tracking data when scheduling new work in an empty ring. Signed-off-by: Jerome Glisse <jglisse@redhat.com> Tested-by: Andy Lutomirski <luto@amacapital.net> Cc: stable@vger.kernel.org Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-06-20ARM: picoxcell: remove .nr_irqs referenceArnd Bergmann
A recent cleanup caused build errors in some configurations because the header defining NR_IRQS_LEGACY is not included here. Since that value is the default, we can just as well leave it out. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Jamie Iles <jamie@jamieiles.com>
2013-06-20Merge branch 'sched-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler fixes from Ingo Molnar: "Two smaller fixes - plus a context tracking tracing fix that is a bit bigger" * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: tracing/context-tracking: Add preempt_schedule_context() for tracing sched: Fix clear NOHZ_BALANCE_KICK sched/x86: Construct all sibling maps if smt
2013-06-20Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Ingo Molnar: "Four fixes. The mmap ones are unfortunately larger than desired - fuzzing uncovered bugs that needed perf context life time management changes to fix properly" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86: Fix broken PEBS-LL support on SNB-EP/IVB-EP perf: Fix mmap() accounting hole perf: Fix perf mmap bugs kprobes: Fix to free gone and unused optprobes
2013-06-20Merge branch 'core-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull cpu idle fixes from Thomas Gleixner: - Add a missing irq enable. Fallout of the idle conversion - Fix stackprotector wreckage caused by the idle conversion * 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: idle: Enable interrupts in the weak arch_cpu_idle() implementation idle: Add the stack canary init to cpu_startup_entry()
2013-06-20Merge branch 'timers-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer fixes from Thomas Gleixner: - Fix inconstinant clock usage in virtual time accounting - Fix a build error in KVM caused by the NOHZ work - Remove a pointless timekeeping duty assignment which breaks NOHZ - Use a proper notifier return value to avoid random behaviour * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: tick: Remove useless timekeeping duty attribution to broadcast source nohz: Fix notifier return val that enforce timekeeping kvm: Move guest entry/exit APIs to context_tracking vtime: Use consistent clocks among nohz accounting
2013-06-20Merge branch 'merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc Pull powerpc fix fro, Benjamin Herrenschmidt: "We accidentally broke hugetlbfs on Freescale embedded processors which use a slightly different page table layout than our server processors" * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc: Fix bad pmd error with book3E config
2013-06-20Merge branch 'stable' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile Pull tilepro fix from Chris Metcalf: "This change allows the older tilepro architecture to be correctly built by newer gccs, despite a change that caused gcc to start trying to use an out-of-line implementation for __builtin_ffsll(). This should be inline again starting with gcc 4.7.4 and 4.8.2 or so, but meanwhile this change keeps things from breaking, with the only cost being a few bytes of code in the kernel to provide __ffsdi2 even for compilers that do inline it" * 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile: tilepro: work around module link error with gcc 4.7
2013-06-20Merge tag 'arm64-stable' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64 Pull arm64 perf fix from Catalin Marinas: "Perf fix (user-mode PC recording)" * tag 'arm64-stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64: perf: arm64: Record the user-mode PC in the call chain.
2013-06-20arm64: Add initial DTS for APM X-Gene Storm SOC and APM Mustang boardVinayak Kale
This patch adds initial DTS files required for APM Mustang board. Signed-off-by: Kumar Sankaran <ksankaran@apm.com> Signed-off-by: Loc Ho <lho@apm.com> Signed-off-by: Feng Kan <fkan@apm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2013-06-20arm64: Add defines for APM ARMv8 implementationVinayak Kale
This patch adds defines for APM CPU implementer ID and APM CPU part numbers in asm/cputype.h Signed-off-by: Kumar Sankaran <ksankaran@apm.com> Signed-off-by: Loc Ho <lho@apm.com> Signed-off-by: Feng Kan <fkan@apm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2013-06-20arm64: Enable APM X-Gene SOC family in the defconfigVinayak Kale
This patch enables APM X-Gene SOC family in the defconfig. It also enables 8250 serial driver needed by X-Gene SOC family. Signed-off-by: Kumar Sankaran <ksankaran@apm.com> Signed-off-by: Loc Ho <lho@apm.com> Signed-off-by: Feng Kan <fkan@apm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2013-06-20arm64: Add Kconfig option for APM X-Gene SOC familyVinayak Kale
This patch adds arm64/Kconfig option for APM X-Gene SOC family. Signed-off-by: Kumar Sankaran <ksankaran@apm.com> Signed-off-by: Loc Ho <lho@apm.com> Signed-off-by: Feng Kan <fkan@apm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2013-06-20hw_breakpoint: Introduce "struct bp_cpuinfo"Oleg Nesterov
This patch simply moves all per-cpu variables into the new single per-cpu "struct bp_cpuinfo". To me this looks more logical and clean, but this can also simplify the further potential changes. In particular, I do not think this memory should be per-cpu, it is never used "locally". After this change it is trivial to turn it into, say, bootmem[nr_cpu_ids]. Reported-by: Vince Weaver <vincent.weaver@maine.edu> Signed-off-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Frederic Weisbecker <fweisbec@gmail.com> Link: http://lkml.kernel.org/r/20130620155020.GA6350@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-06-20hw_breakpoint: Simplify *register_wide_hw_breakpoint()Oleg Nesterov
1. register_wide_hw_breakpoint() can use unregister_ if failure, no need to duplicate the code. 2. "struct perf_event **pevent" adds the unnecesary lever of indirection and complication, use per_cpu(*cpu_events, cpu). Reported-by: Vince Weaver <vincent.weaver@maine.edu> Signed-off-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Frederic Weisbecker <fweisbec@gmail.com> Link: http://lkml.kernel.org/r/20130620155018.GA6347@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-06-20hw_breakpoint: Introduce cpumask_of_bp()Oleg Nesterov
Add the trivial helper which simply returns cpumask_of() or cpu_possible_mask depending on bp->cpu. Change fetch_bp_busy_slots() and toggle_bp_slot() to always do for_each_cpu(cpumask_of_bp) to simplify the code and avoid the code duplication. Reported-by: Vince Weaver <vincent.weaver@maine.edu> Signed-off-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Frederic Weisbecker <fweisbec@gmail.com> Link: http://lkml.kernel.org/r/20130620155015.GA6340@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-06-20hw_breakpoint: Simplify the "weight" usage in toggle_bp_slot() pathsOleg Nesterov
Change toggle_bp_slot() to make "weight" negative if !enable. This way we can always use "+ weight" without additional "if (enable)" check and toggle_bp_task_slot() no longer needs this arg. Reported-by: Vince Weaver <vincent.weaver@maine.edu> Signed-off-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Frederic Weisbecker <fweisbec@gmail.com> Link: http://lkml.kernel.org/r/20130620155013.GA6337@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-06-20hw_breakpoint: Simplify list/idx mess in toggle_bp_slot() pathsOleg Nesterov
The enable/disable logic in toggle_bp_slot() is not symmetrical and imho very confusing. "old_count" in toggle_bp_task_slot() is actually new_count because this bp was already removed from the list. Change toggle_bp_slot() to always call list_add/list_del after toggle_bp_task_slot(). This way old_idx is task_bp_pinned() and this entry should be decremented, new_idx is +/-weight and we need to increment this element. The code/logic looks obvious. Reported-by: Vince Weaver <vincent.weaver@maine.edu> Signed-off-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Frederic Weisbecker <fweisbec@gmail.com> Link: http://lkml.kernel.org/r/20130620155011.GA6330@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-06-20Merge branch 'perf/urgent' into perf/coreIngo Molnar
Merge in two hw_breakpoint fixes, before applying another 5. Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-06-20hw_breakpoint: Use cpu_possible_mask in {reserve,release}_bp_slot()Oleg Nesterov
fetch_bp_busy_slots() and toggle_bp_slot() use for_each_online_cpu(), this is obviously wrong wrt cpu_up() or cpu_down(), we can over/under account the per-cpu numbers. For example: # echo 0 >> /sys/devices/system/cpu/cpu1/online # perf record -e mem:0x10 -p 1 & # echo 1 >> /sys/devices/system/cpu/cpu1/online # perf record -e mem:0x10,mem:0x10,mem:0x10,mem:0x10 -C1 -a & # taskset -p 0x2 1 triggers the same WARN_ONCE("Can't find any breakpoint slot") in arch_install_hw_breakpoint(). Reported-by: Vince Weaver <vincent.weaver@maine.edu> Signed-off-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: <stable@vger.kernel.org> Link: http://lkml.kernel.org/r/20130620155009.GA6327@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-06-20hw_breakpoint: Fix cpu check in task_bp_pinned(cpu)Oleg Nesterov
trinity fuzzer triggered WARN_ONCE("Can't find any breakpoint slot") in arch_install_hw_breakpoint() but the problem is not arch-specific. The problem is, task_bp_pinned(cpu) checks "cpu == iter->cpu" but this doesn't account the "all cpus" events with iter->cpu < 0. This means that, say, register_user_hw_breakpoint(tsk) can happily create the arbitrary number > HBP_NUM of breakpoints which can not be activated. toggle_bp_task_slot() is equally wrong by the same reason and nr_task_bp_pinned[] can have negative entries. Simple test: # perl -e 'sleep 1 while 1' & # perf record -e mem:0x10,mem:0x10,mem:0x10,mem:0x10,mem:0x10 -p `pidof perl` Before this patch this triggers the same problem/WARN_ON(), after the patch it correctly fails with -ENOSPC. Reported-by: Vince Weaver <vincent.weaver@maine.edu> Signed-off-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: <stable@vger.kernel.org> Link: http://lkml.kernel.org/r/20130620155006.GA6324@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-06-20Merge branch 'omap/pm-voltdomain-cleanup' into next/socArnd Bergmann
Conflicts: arch/arm/mach-omap2/Makefile arch/arm/mach-omap2/io.c Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-20ARM: s5p64x0: avoid build warning for uncompress.hArnd Bergmann
Commit 5336539 "ARM: S5P64X0: Use common uncompress.h part for plat-samsung" was missing a type cast, this brings it in line with the other samsung platforms. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-20splice: don't pass the address of ->f_pos to methodsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-06-20Merge tag 'samsung-cleanup-1' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/cleanup From Kukjin Kim: - Consolidate uncompress subroutines and s5p64x0-uncompress - Cleanup watchdog support on Samsung to support multiplatform * tag 'samsung-cleanup-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: SAMSUNG: Remove unused plat/regs-watchdog.h header ARM: SAMSUNG: Remove legacy watchdog reset code ARM: SAMSUNG: Let platforms use the new watchdog reset driver ARM: SAMSUNG: Add watchdog reset driver ARM: SAMSUNG: Use local definitions of watchdog registers watchdog: s3c2410_wdt: Use local register definitions ARM: S5P64X0: Use common uncompress.h part for plat-samsung ARM: SAMSUNG: Consolidate uncompress subroutine Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-20Merge tag 'omap-for-v3.11/dma-signed' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup From Tony Lindgren: Non-critical omap DMA fixes and removal of unused legacy code. * tag 'omap-for-v3.11/dma-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: OMAP1: Remove dma.h ARM: OMAP1: Remove legacy irda.h and irda setup from board files ARM: OMAP1: Remove duplicated DMA channel definitions ARM: OMAP1: Remove McBSP DMA channel definitions ARM: OMAP2+: Remove dma.h ARM: OMAP2+: hwmod: Remove remaining DMA channel definitions ARM: OMAP2+: Remove duplicated DMA channel definitions ARM: OMAP2+: Remove AES crypto device DMA channel definitions ARM: OMAP: dma: Remove the erroneous freeing of platform data ARM: OMAP: dma: Fix the dma_chan_link_map init order ARM: OMAP: dma: Remove the wrong dev_id check Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-20Merge tag 'omap-for-v3.11/pm-voltdomain-signed' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup From Tony Lindgren: PM voltage domain clean-up via Kevin Hilman <khilman@linaro.org>: OMAP: PM: remove requirement for voltage domain data; remove dummy data * tag 'omap-for-v3.11/pm-voltdomain-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: AM33xx: Remove the unused voltagedomain data ARM: OMAP2+: Powerdomain: Remove the need to always have a voltdm associated to a pwrdm Includes an update to Linux 3.10-rc6. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-20Merge tag 'omap-for-v3.11/pm-serial-signed' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup From Tony Lindgren: Serial driver platform init code clean-up via Kevin Hilman <khilman@linaro.org>: OMAP: PM: the serial core + driver can no handle no_console_suspend support without any SoC specific handlding or SoC-specific DT bindings. Remove the now unused SoC specifics for OMAP. * tag 'omap-for-v3.11/pm-serial-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: arm: omap2+: omap_device: remove no_idle_on_suspend arm: dts: am33xx: Remove "ti,no_idle_on_suspend" property. arm: omap2+: serial: remove no_console_suspend support Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-20Merge tag 'omap-for-v3.11/soc-part2-signed' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc From Tony Lindgren: Fix am43x minimal booting as I accidentally left out one patch from the already merged omap-for-v3.11/soc-signed branch. Also fixes for ti81x booting and revision check updates. These are based on omap-for-v3.11/soc-signed because of the am43x dependency to earlier patches. * tag 'omap-for-v3.11/soc-part2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: OMAP3+: am33xx id: Add new am33xx specific function to check dev_feature ARM: OMAP: TI816X: add powerdomains for TI816x ARM: OMAP2: TI81XX: id: Add cpu id for TI816x ES2.0 and ES2.1 ARM: OMAP2+: AM43x: basic dt support Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-20Merge tag 'non-critical-fixes-1' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/fixes-non-critical From Kukjin Kim: update MAINTAINER - Add exynos filename match to ARM/S5P EXYNOS ARM ARCHITECTURES * tag 'non-critical-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: MAINTAINERS: Add exynos filename match to ARM/S5P EXYNOS ARM ARCHITECTURES Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-20Merge tag 'nomadik-dt-2' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik into next/dt From Linus Walleij: Nomadik DT and clock work: - Lee Jones' pinctrl compat ontology patches - A real clock driver for the Nomadik, 100% DT-based - Device tree changes for the Nomadik clocks * tag 'nomadik-dt-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik: ARM: nomadik: add the new clocks to the device tree clk: nomadik: implement the Nomadik clocks properly pinctrl/nomadik: Standardise Pinctrl compat string for Nomadik based platforms ARM: nomadik: Standardise Nomadik STN8815 based Pinctrl compat string in the DTS Conflicts: arch/arm/boot/dts/ste-nomadik-s8815.dts Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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