Eric Lee / smarc-ti-linux-kernel

07 Mar, 2014

2 commits

28 Jan, 2014

1 commit

  • 1b17366d6   Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc ... Browse Code »

    Pull powerpc updates from Ben Herrenschmidt:
    "So here's my next branch for powerpc. A bit late as I was on vacation
    last week. It's mostly the same stuff that was in next already, I
    just added two patches today which are the wiring up of lockref for
    powerpc, which for some reason fell through the cracks last time and
    is trivial.

    The highlights are, in addition to a bunch of bug fixes:

    - Reworked Machine Check handling on kernels running without a
    hypervisor (or acting as a hypervisor). Provides hooks to handle
    some errors in real mode such as TLB errors, handle SLB errors,
    etc...

    - Support for retrieving memory error information from the service
    processor on IBM servers running without a hypervisor and routing
    them to the memory poison infrastructure.

    - _PAGE_NUMA support on server processors

    - 32-bit BookE relocatable kernel support

    - FSL e6500 hardware tablewalk support

    - A bunch of new/revived board support

    - FSL e6500 deeper idle states and altivec powerdown support

    You'll notice a generic mm change here, it has been acked by the
    relevant authorities and is a pre-req for our _PAGE_NUMA support"

    * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (121 commits)
    powerpc: Implement arch_spin_is_locked() using arch_spin_value_unlocked()
    powerpc: Add support for the optimised lockref implementation
    powerpc/powernv: Call OPAL sync before kexec'ing
    powerpc/eeh: Escalate error on non-existing PE
    powerpc/eeh: Handle multiple EEH errors
    powerpc: Fix transactional FP/VMX/VSX unavailable handlers
    powerpc: Don't corrupt transactional state when using FP/VMX in kernel
    powerpc: Reclaim two unused thread_info flag bits
    powerpc: Fix races with irq_work
    Move precessing of MCE queued event out from syscall exit path.
    pseries/cpuidle: Remove redundant call to ppc64_runlatch_off() in cpu idle routines
    powerpc: Make add_system_ram_resources() __init
    powerpc: add SATA_MV to ppc64_defconfig
    powerpc/powernv: Increase candidate fw image size
    powerpc: Add debug checks to catch invalid cpu-to-node mappings
    powerpc: Fix the setup of CPU-to-Node mappings during CPU online
    powerpc/iommu: Don't detach device without IOMMU group
    powerpc/eeh: Hotplug improvement
    powerpc/eeh: Call opal_pci_reinit() on powernv for restoring config space
    powerpc/eeh: Add restore_config operation
    ...

    Linus Torvalds
     

21 Jan, 2014

1 commit

  • 8cf7a16ee   Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k ... Browse Code »

    Pull m68k updates from Geert Uytterhoeven:
    - Zorro bus cleanups and UAPI revival
    - Bootinfo cleanups and UAPI revival
    - Kexec support
    - Memory size reductions and bug fixes for multi-platform kernels
    - Polled interrupt support for Atari EtherNAT, EtherNEC and NetUSBee
    - Machine-specific random_get_entropy()
    - Defconfig updates and cleanups

    * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: (46 commits)
    m68k/mac: Make SCC reset work more reliably
    m68k/irq - Use polled IRQ flag for MFP timer cascaded interrupts
    m68k: Update defconfigs for v3.13-rc1
    m68k/defconfig: Enable EARLY_PRINTK
    m68k/mm: kmap spelling/grammar fixes
    m68k: Convert arch/m68k/kernel/traps.c to pr_*()
    m68k: Convert arch/m68k/mm/fault.c to pr_*()
    m68k/mm: Check for mm != NULL in do_page_fault() debug code
    m68k/defconfig: Disable /sbin/hotplug fork-bomb by default
    m68k/atari: Hide RTC_PORT() macro from rtc-cmos
    m68k/amiga,atari: Fix specifying multiple debug= parameters
    m68k/defconfig: Use ext4 for ext2/ext3 file systems
    m68k: Add support to export bootinfo in procfs
    m68k: Add kexec support
    m68k/mac: Mark Mac IIsi ADB driver BROKEN
    m68k/amiga: Provide mach_random_get_entropy()
    m68k: Add infrastructure for machine-specific random_get_entropy()
    m68k/atari: Call paging_init() before nf_init()
    m68k: Remove superfluous inclusions of
    m68k/UAPI: Use proper types (endianness/size) in
    ...

    Linus Torvalds
     

08 Dec, 2013

1 commit

05 Dec, 2013

1 commit

27 Nov, 2013

1 commit

  • 721cb59e9   powerpc/windfarm: Fix XServe G5 fan control Makefile issue ... Browse Code »

    We are missing building windfarm_max6690_sensor.o when building
    CONFIG_WINDFARM_RM31. Usually all the windfarm drivers are built
    and thus this isn't a problem but some more "tailored" setups
    (Gentoo ?) building only that driver are not working because
    the require sensor module is missing.

    Reported-by: Stanislav Ponomarev
    Signed-off-by: Benjamin Herrenschmidt

    Benjamin Herrenschmidt
     

12 Nov, 2013

1 commit

  • 10d0c9705   Merge tag 'devicetree-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux ... Browse Code »

    Pull devicetree updates from Rob Herring:
    "DeviceTree updates for 3.13. This is a bit larger pull request than
    usual for this cycle with lots of clean-up.

    - Cross arch clean-up and consolidation of early DT scanning code.
    - Clean-up and removal of arch prom.h headers. Makes arch specific
    prom.h optional on all but Sparc.
    - Addition of interrupts-extended property for devices connected to
    multiple interrupt controllers.
    - Refactoring of DT interrupt parsing code in preparation for
    deferred probe of interrupts.
    - ARM cpu and cpu topology bindings documentation.
    - Various DT vendor binding documentation updates"

    * tag 'devicetree-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (82 commits)
    powerpc: add missing explicit OF includes for ppc
    dt/irq: add empty of_irq_count for !OF_IRQ
    dt: disable self-tests for !OF_IRQ
    of: irq: Fix interrupt-map entry matching
    MIPS: Netlogic: replace early_init_devtree() call
    of: Add Panasonic Corporation vendor prefix
    of: Add Chunghwa Picture Tubes Ltd. vendor prefix
    of: Add AU Optronics Corporation vendor prefix
    of/irq: Fix potential buffer overflow
    of/irq: Fix bug in interrupt parsing refactor.
    of: set dma_mask to point to coherent_dma_mask
    of: add vendor prefix for PHYTEC Messtechnik GmbH
    DT: sort vendor-prefixes.txt
    of: Add vendor prefix for Cadence
    of: Add empty for_each_available_child_of_node() macro definition
    arm/versatile: Fix versatile irq specifications.
    of/irq: create interrupts-extended property
    microblaze/pci: Drop PowerPC-ism from irq parsing
    of/irq: Create of_irq_parse_and_map_pci() to consolidate arch code.
    of/irq: Use irq_of_parse_and_map()
    ...

    Linus Torvalds
     

31 Oct, 2013

1 commit

  • de00b30d0   powerpc/pmu: Fix ADB_PMU_LED_IDE dependencies ... Browse Code »

    for quite some time the following is printed (twice) after doing
    "make oldconfig":

    [...]
    scripts/kconfig/conf --oldconfig Kconfig
    warning: (ADB_PMU_LED_IDE) selects LEDS_TRIGGER_IDE_DISK which has unmet direct dependencies (NEW_LEDS && IDE_GD_ATA && LEDS_TRIGGERS)
    warning: (ADB_PMU_LED_IDE) selects LEDS_TRIGGER_IDE_DISK which has unmet direct dependencies (NEW_LEDS && IDE_GD_ATA && LEDS_TRIGGERS)

    The following patch causes ADB_PMU_LED to depend on IDE_GD_ATA, so that
    the options above are only available when IDE_GD_ATA is actually selected
    and thus eliminates the warning.

    Signed-off-by: Christian Kujau
    Signed-off-by: Benjamin Herrenschmidt

    Christian Kujau
     

10 Oct, 2013

1 commit

14 Aug, 2013

1 commit

01 Aug, 2013

1 commit

  • fe956a1d4   powerpc/windfarm: Fix noisy slots-fan on Xserve (rm31) ... Browse Code »

    slots-fan on G5 Xserve is always running at full speed with windfarm_rm31
    driver, resulting in a very high acoustic noise level. It seems the fan
    parameters are incorrect, and have been copied from the Drive Bay fan
    (RPM, not present on rm31) of the legacy therm_pm72 driver. This patch
    changes the parameters to match the Slots fan (PWM) of therm_pm72. With
    the patch, slots-fan speed drops from 99% to 19% during normal use,
    and slots-temp settle to ~42'C.

    Signed-off-by: Aaro Koskinen
    CC:
    Signed-off-by: Benjamin Herrenschmidt

    Aaro Koskinen
     

01 Jul, 2013

4 commits

  • 91f5af2e6   macintosh/windfarm: Remove obsolete cleanup for clientdata ... Browse Code »

    A few new i2c-drivers came into the kernel which clear the clientdata-pointer
    on exit or error. This is obsolete meanwhile, the core will do it.

    Signed-off-by: Wolfram Sang
    Signed-off-by: Benjamin Herrenschmidt

    Wolfram Sang
     
  • 330dae199   mac: Make cuda_init_via() __init ... Browse Code »

    cuda_init_via() is called from find_via_cuda() only, which is __init.

    Signed-off-by: Geert Uytterhoeven
    Signed-off-by: Benjamin Herrenschmidt

    Geert Uytterhoeven
     
  • 5eb969d0e   macintosh: Convert use of typedef ctl_table to struct ctl_table ... Browse Code »

    This typedef is unnecessary and should just be removed.

    Signed-off-by: Joe Perches
    Signed-off-by: Benjamin Herrenschmidt

    Joe Perches
     
  • 4bb297113   powerpc/windfarm: Fix overtemperature clearing ... Browse Code »

    With pm81/pm91/pm121, when the overtemperature state is entered, and
    when it remains on after skipped ticks, the driver will try to leave
    it too soon (immediately on the next tick). This is because the active
    FAILURE_OVERTEMP state is not visible in "new_failure" variable of the
    current tick. Furthermore, the driver will keep trying to clear condition
    in subsequent ticks as FAILURE_OVERTEMP remains set in the "last_failure"
    variable. These will start to trigger WARNINGS from windfarm core:

    [ 100.082735] windfarm: Clamping CPU frequency to minimum !
    [ 100.108132] windfarm: Overtemp condition detected !
    [ 101.952908] windfarm: Overtemp condition cleared !
    [...]
    [ 102.980388] WARNING: at drivers/macintosh/windfarm_core.c:463
    [...]
    [ 103.982227] WARNING: at drivers/macintosh/windfarm_core.c:463
    [...]
    [ 105.030494] WARNING: at drivers/macintosh/windfarm_core.c:463
    [...]
    [ 105.973666] WARNING: at drivers/macintosh/windfarm_core.c:463
    [...]
    [ 106.977913] WARNING: at drivers/macintosh/windfarm_core.c:463

    Fix by adding a helper global variable. We leave the overtemp state only
    after all failure bits have been cleared.

    I saw this error on iMac G5 iSight (pm121). Also pm81/pm91 are fixed
    based on the observation that these are almost identical/copy-pasted code.

    Signed-off-by: Aaro Koskinen
    Signed-off-by: Benjamin Herrenschmidt

    Aaro Koskinen
     

25 Jun, 2013

1 commit

03 May, 2013

1 commit

  • 5a148af66   Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc ... Browse Code »

    Pull powerpc update from Benjamin Herrenschmidt:
    "The main highlights this time around are:

    - A pile of addition POWER8 bits and nits, such as updated
    performance counter support (Michael Ellerman), new branch history
    buffer support (Anshuman Khandual), base support for the new PCI
    host bridge when not using the hypervisor (Gavin Shan) and other
    random related bits and fixes from various contributors.

    - Some rework of our page table format by Aneesh Kumar which fixes a
    thing or two and paves the way for THP support. THP itself will
    not make it this time around however.

    - More Freescale updates, including Altivec support on the new e6500
    cores, new PCI controller support, and a pile of new boards support
    and updates.

    - The usual batch of trivial cleanups & fixes"

    * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (156 commits)
    powerpc: Fix build error for book3e
    powerpc: Context switch the new EBB SPRs
    powerpc: Turn on the EBB H/FSCR bits
    powerpc: Replace CPU_FTR_BCTAR with CPU_FTR_ARCH_207S
    powerpc: Setup BHRB instructions facility in HFSCR for POWER8
    powerpc: Fix interrupt range check on debug exception
    powerpc: Update tlbie/tlbiel as per ISA doc
    powerpc: Print page size info during boot
    powerpc: print both base and actual page size on hash failure
    powerpc: Fix hpte_decode to use the correct decoding for page sizes
    powerpc: Decode the pte-lp-encoding bits correctly.
    powerpc: Use encode avpn where we need only avpn values
    powerpc: Reduce PTE table memory wastage
    powerpc: Move the pte free routines from common header
    powerpc: Reduce the PTE_INDEX_SIZE
    powerpc: Switch 16GB and 16MB explicit hugepages to a different page table format
    powerpc: New hugepage directory format
    powerpc: Don't truncate pgd_index wrongly
    powerpc: Don't hard code the size of pte page
    powerpc: Save DAR and DSISR in pt_regs on MCE
    ...

    Linus Torvalds
     

23 Apr, 2013

1 commit

10 Apr, 2013

1 commit

  • d9dda78ba   procfs: new helper - PDE_DATA(inode) ... Browse Code »

    The only part of proc_dir_entry the code outside of fs/proc
    really cares about is PDE(inode)->data. Provide a helper
    for that; static inline for now, eventually will be moved
    to fs/proc, along with the knowledge of struct proc_dir_entry
    layout.

    Signed-off-by: Al Viro

    Al Viro
     

24 Feb, 2013

1 commit

  • 9d3cae26a   Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc ... Browse Code »

    Pull powerpc updates from Benjamin Herrenschmidt:
    "So from the depth of frozen Minnesota, here's the powerpc pull request
    for 3.9. It has a few interesting highlights, in addition to the
    usual bunch of bug fixes, minor updates, embedded device tree updates
    and new boards:

    - Hand tuned asm implementation of SHA1 (by Paulus & Michael
    Ellerman)

    - Support for Doorbell interrupts on Power8 (kind of fast
    thread-thread IPIs) by Ian Munsie

    - Long overdue cleanup of the way we handle relocation of our open
    firmware trampoline (prom_init.c) on 64-bit by Anton Blanchard

    - Support for saving/restoring & context switching the PPR (Processor
    Priority Register) on server processors that support it. This
    allows the kernel to preserve thread priorities established by
    userspace. By Haren Myneni.

    - DAWR (new watchpoint facility) support on Power8 by Michael Neuling

    - Ability to change the DSCR (Data Stream Control Register) which
    controls cache prefetching on a running process via ptrace by
    Alexey Kardashevskiy

    - Support for context switching the TAR register on Power8 (new
    branch target register meant to be used by some new specific
    userspace perf event interrupt facility which is yet to be enabled)
    by Ian Munsie.

    - Improve preservation of the CFAR register (which captures the
    origin of a branch) on various exception conditions by Paulus.

    - Move the Bestcomm DMA driver from arch powerpc to drivers/dma where
    it belongs by Philippe De Muyter

    - Support for Transactional Memory on Power8 by Michael Neuling
    (based on original work by Matt Evans). For those curious about
    the feature, the patch contains a pretty good description."

    (See commit db8ff907027b: "powerpc: Documentation for transactional
    memory on powerpc" for the mentioned description added to the file
    Documentation/powerpc/transactional_memory.txt)

    * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (140 commits)
    powerpc/kexec: Disable hard IRQ before kexec
    powerpc/85xx: l2sram - Add compatible string for BSC9131 platform
    powerpc/85xx: bsc9131 - Correct typo in SDHC device node
    powerpc/e500/qemu-e500: enable coreint
    powerpc/mpic: allow coreint to be determined by MPIC version
    powerpc/fsl_pci: Store the pci ctlr device ptr in the pci ctlr struct
    powerpc/85xx: Board support for ppa8548
    powerpc/fsl: remove extraneous DIU platform functions
    arch/powerpc/platforms/85xx/p1022_ds.c: adjust duplicate test
    powerpc: Documentation for transactional memory on powerpc
    powerpc: Add transactional memory to pseries and ppc64 defconfigs
    powerpc: Add config option for transactional memory
    powerpc: Add transactional memory to POWER8 cpu features
    powerpc: Add new transactional memory state to the signal context
    powerpc: Hook in new transactional memory code
    powerpc: Routines for FP/VSX/VMX unavailable during a transaction
    powerpc: Add transactional memory unavaliable execption handler
    powerpc: Add reclaim and recheckpoint functions for context switching transactional memory processes
    powerpc: Add FP/VSX and VMX register load functions for transactional memory
    powerpc: Add helper functions for transactional memory context switching
    ...

    Linus Torvalds
     

22 Jan, 2013

1 commit

  • 80ec21359   drivers/macintosh: remove depends on CONFIG_EXPERIMENTAL ... Browse Code »

    The CONFIG_EXPERIMENTAL config item has not carried much meaning for a
    while now and is almost always enabled by default. As agreed during the
    Linux kernel summit, remove it from any "depends on" lines in Kconfigs.

    CC: Benjamin Herrenschmidt
    Signed-off-by: Kees Cook
    Signed-off-by: Greg Kroah-Hartman

    Kees Cook
     

10 Jan, 2013

1 commit

04 Jan, 2013

1 commit

  • 1da42fb6b   Drivers: macintosh: remove __dev* attributes. ... Browse Code »

    CONFIG_HOTPLUG is going away as an option. As a result, the __dev*
    markings need to be removed.

    This change removes the use of __devinit, __devexit_p, __devinitconst,
    and __devexit from these drivers.

    Based on patches originally written by Bill Pemberton, but redone by me
    in order to handle some of the coding style issues better, by hand.

    Cc: Bill Pemberton
    Cc: Benjamin Herrenschmidt
    Signed-off-by: Greg Kroah-Hartman

    Greg Kroah-Hartman
     

19 Dec, 2012

1 commit

  • 16e024f30   Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc ... Browse Code »

    Pull powerpc update from Benjamin Herrenschmidt:
    "The main highlight is probably some base POWER8 support. There's more
    to come such as transactional memory support but that will wait for
    the next one.

    Overall it's pretty quiet, or rather I've been pretty poor at picking
    things up from patchwork and reviewing them this time around and Kumar
    no better on the FSL side it seems..."

    * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (73 commits)
    powerpc+of: Rename and fix OF reconfig notifier error inject module
    powerpc: mpc5200: Add a3m071 board support
    powerpc/512x: don't compile any platform DIU code if the DIU is not enabled
    powerpc/mpc52xx: use module_platform_driver macro
    powerpc+of: Export of_reconfig_notifier_[register,unregister]
    powerpc/dma/raidengine: add raidengine device
    powerpc/iommu/fsl: Add PAMU bypass enable register to ccsr_guts struct
    powerpc/mpc85xx: Change spin table to cached memory
    powerpc/fsl-pci: Add PCI controller ATMU PM support
    powerpc/86xx: fsl_pcibios_fixup_bus requires CONFIG_PCI
    drivers/virt: the Freescale hypervisor driver doesn't need to check MSR[GS]
    powerpc/85xx: p1022ds: Use NULL instead of 0 for pointers
    powerpc: Disable relocation on exceptions when kexecing
    powerpc: Enable relocation on during exceptions at boot
    powerpc: Move get_longbusy_msecs into hvcall.h and remove duplicate function
    powerpc: Add wrappers to enable/disable relocation on exceptions
    powerpc: Add set_mode hcall
    powerpc: Setup relocation on exceptions for bare metal systems
    powerpc: Move initial mfspr LPCR out of __init_LPCR
    powerpc: Add relocation on exception vector handlers
    ...

    Linus Torvalds
     

12 Dec, 2012

1 commit

  • 81df9bff2   bootmem: fix wrong call parameter for free_bootmem() ... Browse Code »

    It is strange that alloc_bootmem() returns a virtual address and
    free_bootmem() requires a physical address. Anyway, free_bootmem()'s
    first parameter should be physical address.

    There are some call sites for free_bootmem() with virtual address. So fix
    them.

    [akpm@linux-foundation.org: improve free_bootmem() and free_bootmem_pate() documentation]
    Signed-off-by: Joonsoo Kim
    Cc: Haavard Skinnemoen
    Cc: Hans-Christian Egtvedt
    Cc: Johannes Weiner
    Cc: FUJITA Tomonori
    Cc: Benjamin Herrenschmidt
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Joonsoo Kim
     

15 Nov, 2012

3 commits

06 Oct, 2012

2 commits

  • 5f3d2f2e1   Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc ... Browse Code »

    Pull powerpc updates from Benjamin Herrenschmidt:
    "Some highlights in addition to the usual batch of fixes:

    - 64TB address space support for 64-bit processes by Aneesh Kumar

    - Gavin Shan did a major cleanup & re-organization of our EEH support
    code (IBM fancy PCI error handling & recovery infrastructure) which
    paves the way for supporting different platform backends, along
    with some rework of the PCIe code for the PowerNV platform in order
    to remove home made resource allocations and instead use the
    generic code (which is possible after some small improvements to it
    done by Gavin).

    - Uprobes support by Ananth N Mavinakayanahalli

    - A pile of embedded updates from Freescale folks, including new SoC
    and board supports, more KVM stuff including preparing for 64-bit
    BookE KVM support, ePAPR 1.1 updates, etc..."

    Fixup trivial conflicts in drivers/scsi/ipr.c

    * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (146 commits)
    powerpc/iommu: Fix multiple issues with IOMMU pools code
    powerpc: Fix VMX fix for memcpy case
    driver/mtd:IFC NAND:Initialise internal SRAM before any write
    powerpc/fsl-pci: use 'Header Type' to identify PCIE mode
    powerpc/eeh: Don't release eeh_mutex in eeh_phb_pe_get
    powerpc: Remove tlb batching hack for nighthawk
    powerpc: Set paca->data_offset = 0 for boot cpu
    powerpc/perf: Sample only if SIAR-Valid bit is set in P7+
    powerpc/fsl-pci: fix warning when CONFIG_SWIOTLB is disabled
    powerpc/mpc85xx: Update interrupt handling for IFC controller
    powerpc/85xx: Enable USB support in p1023rds_defconfig
    powerpc/smp: Do not disable IPI interrupts during suspend
    powerpc/eeh: Fix crash on converting OF node to edev
    powerpc/eeh: Lock module while handling EEH event
    powerpc/kprobe: Don't emulate store when kprobe stwu r1
    powerpc/kprobe: Complete kprobe and migrate exception frame
    powerpc/kprobe: Introduce a new thread flag
    powerpc: Remove unused __get_user64() and __put_user64()
    powerpc/eeh: Global mutex to protect PE tree
    powerpc/eeh: Remove EEH PE for normal PCI hotplug
    ...

    Linus Torvalds
     
  • dd0e981a6   sections: fix section conflicts in drivers/macintosh ... Browse Code »

    [akpm@linux-foundation.org: checkpatch fixes]
    Signed-off-by: Andi Kleen
    Cc: Benjamin Herrenschmidt
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Andi Kleen
     

03 Oct, 2012

1 commit

  • 033d9959e   Merge branch 'for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq ... Browse Code »

    Pull workqueue changes from Tejun Heo:
    "This is workqueue updates for v3.7-rc1. A lot of activities this
    round including considerable API and behavior cleanups.

    * delayed_work combines a timer and a work item. The handling of the
    timer part has always been a bit clunky leading to confusing
    cancelation API with weird corner-case behaviors. delayed_work is
    updated to use new IRQ safe timer and cancelation now works as
    expected.

    * Another deficiency of delayed_work was lack of the counterpart of
    mod_timer() which led to cancel+queue combinations or open-coded
    timer+work usages. mod_delayed_work[_on]() are added.

    These two delayed_work changes make delayed_work provide interface
    and behave like timer which is executed with process context.

    * A work item could be executed concurrently on multiple CPUs, which
    is rather unintuitive and made flush_work() behavior confusing and
    half-broken under certain circumstances. This problem doesn't
    exist for non-reentrant workqueues. While non-reentrancy check
    isn't free, the overhead is incurred only when a work item bounces
    across different CPUs and even in simulated pathological scenario
    the overhead isn't too high.

    All workqueues are made non-reentrant. This removes the
    distinction between flush_[delayed_]work() and
    flush_[delayed_]_work_sync(). The former is now as strong as the
    latter and the specified work item is guaranteed to have finished
    execution of any previous queueing on return.

    * In addition to the various bug fixes, Lai redid and simplified CPU
    hotplug handling significantly.

    * Joonsoo introduced system_highpri_wq and used it during CPU
    hotplug.

    There are two merge commits - one to pull in IRQ safe timer from
    tip/timers/core and the other to pull in CPU hotplug fixes from
    wq/for-3.6-fixes as Lai's hotplug restructuring depended on them."

    Fixed a number of trivial conflicts, but the more interesting conflicts
    were silent ones where the deprecated interfaces had been used by new
    code in the merge window, and thus didn't cause any real data conflicts.

    Tejun pointed out a few of them, I fixed a couple more.

    * 'for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: (46 commits)
    workqueue: remove spurious WARN_ON_ONCE(in_irq()) from try_to_grab_pending()
    workqueue: use cwq_set_max_active() helper for workqueue_set_max_active()
    workqueue: introduce cwq_set_max_active() helper for thaw_workqueues()
    workqueue: remove @delayed from cwq_dec_nr_in_flight()
    workqueue: fix possible stall on try_to_grab_pending() of a delayed work item
    workqueue: use hotcpu_notifier() for workqueue_cpu_down_callback()
    workqueue: use __cpuinit instead of __devinit for cpu callbacks
    workqueue: rename manager_mutex to assoc_mutex
    workqueue: WORKER_REBIND is no longer necessary for idle rebinding
    workqueue: WORKER_REBIND is no longer necessary for busy rebinding
    workqueue: reimplement idle worker rebinding
    workqueue: deprecate __cancel_delayed_work()
    workqueue: reimplement cancel_delayed_work() using try_to_grab_pending()
    workqueue: use mod_delayed_work() instead of __cancel + queue
    workqueue: use irqsafe timer for delayed_work
    workqueue: clean up delayed_work initializers and add missing one
    workqueue: make deferrable delayed_work initializer names consistent
    workqueue: cosmetic whitespace updates for macro definitions
    workqueue: deprecate system_nrt[_freezable]_wq
    workqueue: deprecate flush[_delayed]_work_sync()
    ...

    Linus Torvalds
     

11 Sep, 2012

2 commits

05 Sep, 2012

1 commit

21 Aug, 2012

1 commit

  • 43829731d   workqueue: deprecate flush[_delayed]_work_sync() ... Browse Code »
    13

    flush[_delayed]_work_sync() are now spurious. Mark them deprecated
    and convert all users to flush[_delayed]_work().

    If you're cc'd and wondering what's going on: Now all workqueues are
    non-reentrant and the regular flushes guarantee that the work item is
    not pending or running on any CPU on return, so there's no reason to
    use the sync flushes at all and they're going away.

    This patch doesn't make any functional difference.

    Signed-off-by: Tejun Heo
    Cc: Russell King
    Cc: Paul Mundt
    Cc: Ian Campbell
    Cc: Jens Axboe
    Cc: Mattia Dongili
    Cc: Kent Yoder
    Cc: David Airlie
    Cc: Jiri Kosina
    Cc: Karsten Keil
    Cc: Bryan Wu
    Cc: Benjamin Herrenschmidt
    Cc: Alasdair Kergon
    Cc: Mauro Carvalho Chehab
    Cc: Florian Tobias Schandinat
    Cc: David Woodhouse
    Cc: "David S. Miller"
    Cc: linux-wireless@vger.kernel.org
    Cc: Anton Vorontsov
    Cc: Sangbeom Kim
    Cc: "James E.J. Bottomley"
    Cc: Greg Kroah-Hartman
    Cc: Eric Van Hensbergen
    Cc: Takashi Iwai
    Cc: Steven Whitehouse
    Cc: Petr Vandrovec
    Cc: Mark Fasheh
    Cc: Christoph Hellwig
    Cc: Avi Kivity

    Tejun Heo
     

09 May, 2012

1 commit

03 May, 2012

2 commits

  • 43671cc96   powerpc/windfarm: don't pass const strings to snprintf ... Browse Code »

    Fixes these build warnings:

    drivers/macintosh/windfarm_smu_sat.c: In function 'wf_sat_probe':
    drivers/macintosh/windfarm_smu_sat.c:290:3: warning: passing argument 1 of 'snprintf' discards qualifiers from pointer target type
    include/linux/kernel.h:323:5: note: expected 'char *' but argument is of type 'const char *'
    drivers/macintosh/windfarm_smu_sat.c:317:3: warning: passing argument 1 of 'snprintf' discards qualifiers from pointer target type
    include/linux/kernel.h:323:5: note: expected 'char *' but argument is of type 'const char *'

    Introduced by commit e074d08e2b98 ("powerpc/windfarm: const'ify and add
    "priv" field to controls & sensors").

    Signed-off-by: Stephen Rothwell
    Signed-off-by: Benjamin Herrenschmidt

    Stephen Rothwell
     
  • ca7d593e0   powerpc/windfarm: fix compiler warning ... Browse Code »

    Fixes this warning:

    drivers/macintosh/windfarm_pm91.c: In function 'wf_smu_cpu_fans_tick':
    drivers/macintosh/windfarm_pm91.c:237:2: warning: passing argument 1 of 'wf_sensor_get' from incompatible pointer type
    drivers/macintosh/windfarm.h:124:19: note: expected 'struct wf_sensor *' but argument is of type 'struct wf_sensor **'

    Introduced by commit 33e6820b767a ("powerpc/windfarm: Add useful
    accessors").

    Signed-off-by: Stephen Rothwell
    Signed-off-by: Benjamin Herrenschmidt

    Stephen Rothwell
     

30 Apr, 2012

1 commit