1. 12 Jul, 2015 2 commits
    • Linus Torvalds's avatar
      Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · c4bc680c
      Linus Torvalds authored
      Pull irq fix from Thomas Gleixner:
       "A single fix for a cpu hotplug race vs. interrupt descriptors:
      
        Prevent irq setup/teardown across the cpu starting/dying parts of cpu
        hotplug so that the starting/dying cpu has a stable view of the
        descriptor space.  This has been an issue for all architectures in the
        cpu dying phase, where interrupts are migrated away from the dying
        cpu.  In the starting phase its mostly a x86 issue vs the vector space
        update"
      
      * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        hotplug: Prevent alloc/free of irq descriptors during cpu up/down
      c4bc680c
    • Linus Torvalds's avatar
      Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/nvdimm · 59c3cb55
      Linus Torvalds authored
      Pull libnvdimm fixes from Dan Williams:
       "1) Fixes for a handful of smatch reports (Thanks Dan C.!) and minor
           bug fixes (patches 1-6)
      
        2) Correctness fixes to the BLK-mode nvdimm driver (patches 7-10).
      
           Granted these are slightly large for a -rc update.  They have been
           out for review in one form or another since the end of May and were
           deferred from the merge window while we settled on the "PMEM API"
           for the PMEM-mode nvdimm driver (ie memremap_pmem, memcpy_to_pmem,
           and wmb_pmem).
      
           Now that those apis are merged we implement them in the BLK driver
           to guarantee that mmio aperture moves stay ordered with respect to
           incoming read/write requests, and that writes are flushed through
           those mmio-windows and platform-buffers to be persistent on media.
      
        These pass the sub-system unit tests with the updates to
        tools/testing/nvdimm, and have received a successful build-report from
        the kbuild robot (468 configs).
      
        With acks from Rafael for the touches to drivers/acpi/"
      
      * 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/nvdimm:
        nfit: add support for NVDIMM "latch" flag
        nfit: update block I/O path to use PMEM API
        tools/testing/nvdimm: add mock acpi_nfit_flush_address entries to nfit_test
        tools/testing/nvdimm: fix return code for unimplemented commands
        tools/testing/nvdimm: mock ioremap_wt
        pmem: add maintainer for include/linux/pmem.h
        nfit: fix smatch "use after null check" report
        nvdimm: Fix return value of nvdimm_bus_init() if class_create() fails
        libnvdimm: smatch cleanups in __nd_ioctl
        sparse: fix misplaced __pmem definition
      59c3cb55
  2. 11 Jul, 2015 7 commits
    • Linus Torvalds's avatar
      Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux · e4925198
      Linus Torvalds authored
      Pull i2c fixes from Wolfram Sang:
       "Mostly slight adjusments for new drivers, but also one core fix for
        which finally the dependencies are now available as well"
      
      * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
        i2c: Mark instantiated device nodes with OF_POPULATE
        i2c: jz4780: Fix return value if probe fails
        i2c: xgene-slimpro: Fix missing mbox_free_channel call in probe error path
        i2c: I2C_MT65XX should depend on HAS_DMA
      e4925198
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input · 8a7b8ff4
      Linus Torvalds authored
      Pull input fixes from Dmitry Torokhov:
       "A fix (revert) for a recent regression in Synaptics driver and a fix
        for Elan i2c touchpad driver"
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
        Revert "Input: synaptics - allocate 3 slots to keep stability in image sensors"
        Input: elan_i2c - change the hover event from MT to ST
      8a7b8ff4
    • Linus Torvalds's avatar
      Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux · 4322f028
      Linus Torvalds authored
      Pull clk fixes from Stephen Boyd:
       "A small set of fixes for problems found by smatch in new drivers that
        we added this rc and a handful of driver fixes that came in during the
        merge window"
      
      * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
        drivers: clk: st: Incorrect register offset used for lock_status
        clk: mediatek: mt8173: Fix enabling of critical clocks
        drivers: clk: st: Fix mux bit-setting for Cortex A9 clocks
        drivers: clk: st: Add CLK_GET_RATE_NOCACHE flag to clocks
        drivers: clk: st: Fix flexgen lock init
        drivers: clk: st: Fix FSYN channel values
        drivers: clk: st: Remove unused code
        clk: qcom: Use parent rate when set rate to pixel RCG clock
        clk: at91: do not leak resources
        clk: stm32: Fix out-by-one error path in the index lookup
        clk: iproc: fix bit manipulation arithmetic
        clk: iproc: fix memory leak from clock name
      4322f028
    • Linus Torvalds's avatar
      Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux · 9cb1680c
      Linus Torvalds authored
      Pull drm fixes from Dave Airlie:
       "A bunch of fixes for radeon, intel, omap and one amdkfd fix.
      
        Radeon fixes are all over, but it does fix some cursor corruption
        across suspend/resume.  i915 should fix the second warn you were
        seeing, so let us know if not.  omap is a bunch of small fixes"
      
      * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (28 commits)
        drm/radeon: disable vce init on cayman (v2)
        drm/amdgpu: fix timeout calculation
        drm/radeon: check if BO_VA is set before adding it to the invalidation list
        drm/radeon: allways add the VM clear duplicate
        Revert "Revert "drm/radeon: dont switch vt on suspend""
        drm/radeon: Fold radeon_set_cursor() into radeon_show_cursor()
        drm/radeon: unpin cursor BOs on suspend and pin them again on resume (v2)
        drm/radeon: Clean up reference counting and pinning of the cursor BOs
        drm/amdkfd: validate pdd where it acquired first
        Revert "drm/i915: Allocate context objects from stolen"
        drm/i915: Declare the swizzling unknown for L-shaped configurations
        drm/radeon: fix underflow in r600_cp_dispatch_texture()
        drm/radeon: default to 2048 MB GART size on SI+
        drm/radeon: fix HDP flushing
        drm/radeon: use RCU query for GEM_BUSY syscall
        drm/amdgpu: Handle irqs only based on irq ring, not irq status regs.
        drm/radeon: Handle irqs only based on irq ring, not irq status regs.
        drm/i915: Use crtc_state->active in primary check_plane func
        drm/i915: Check crtc->active in intel_crtc_disable_planes
        drm/i915: Restore all GGTT VMAs on resume
        ...
      9cb1680c
    • Linus Torvalds's avatar
      Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security · 2278cb0b
      Linus Torvalds authored
      Pull selinux fixes from James Morris.
      
      * 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
        selinux: fix mprotect PROT_EXEC regression caused by mm change
        selinux: don't waste ebitmap space when importing NetLabel categories
      2278cb0b
    • Linus Torvalds's avatar
      Merge branch 'for-linus-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs · 31b7a57c
      Linus Torvalds authored
      Pull btrfs fixes from Chris Mason:
       "This is an assortment of fixes.  Most of the commits are from Filipe
        (fsync, the inode allocation cache and a few others).  Mark kicked in
        a series fixing corners in the extent sharing ioctls, and everyone
        else fixed up on assorted other problems"
      
      * 'for-linus-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
        Btrfs: fix wrong check for btrfs_force_chunk_alloc()
        Btrfs: fix warning of bytes_may_use
        Btrfs: fix hang when failing to submit bio of directIO
        Btrfs: fix a comment in inode.c:evict_inode_truncate_pages()
        Btrfs: fix memory corruption on failure to submit bio for direct IO
        btrfs: don't update mtime/ctime on deduped inodes
        btrfs: allow dedupe of same inode
        btrfs: fix deadlock with extent-same and readpage
        btrfs: pass unaligned length to btrfs_cmp_data()
        Btrfs: fix fsync after truncate when no_holes feature is enabled
        Btrfs: fix fsync xattr loss in the fast fsync path
        Btrfs: fix fsync data loss after append write
        Btrfs: fix crash on close_ctree() if cleaner starts new transaction
        Btrfs: fix race between caching kthread and returning inode to inode cache
        Btrfs: use kmem_cache_free when freeing entry in inode cache
        Btrfs: fix race between balance and unused block group deletion
        btrfs: add error handling for scrub_workers_get()
        btrfs: cleanup noused initialization of dev in btrfs_end_bio()
        btrfs: qgroup: allow user to clear the limitation on qgroup
      31b7a57c
    • Linus Torvalds's avatar
      Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc · 84e3e9d0
      Linus Torvalds authored
      Pull ARM SoC fixes from Kevin Hilman:
       "A fairly random colletion of fixes based on -rc1 for OMAP, sunxi and
        prima2 as well as a few arm64-specific DT fixes.
      
        This series also includes a late to support a new Allwinner (sunxi)
        SoC, but since it's rather simple and isolated to the
        platform-specific code, it's included it for this -rc"
      
      * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
        arm64: dts: add device tree for ARM SMM-A53x2 on LogicTile Express 20MG
        arm: dts: vexpress: add missing CCI PMU device node to TC2
        arm: dts: vexpress: describe all PMUs in TC2 dts
        GICv3: Add ITS entry to THUNDER dts
        arm64: dts: Add poweroff button device node for APM X-Gene platform
        ARM: dts: am4372.dtsi: disable rfbi
        ARM: dts: am57xx-beagle-x15: Provide supply for usb2_phy2
        ARM: dts: am4372: Add emif node
        Revert "ARM: dts: am335x-boneblack: disable RTC-only sleep"
        ARM: sunxi: Enable simplefb in the defconfig
        ARM: Remove deprecated symbol from defconfig files
        ARM: sunxi: Add Machine support for A33
        ARM: sunxi: Introduce Allwinner H3 support
        Documentation: sunxi: Update Allwinner SoC documentation
        ARM: prima2: move to use REGMAP APIs for rtciobrg
        ARM: dts: atlas7: add pinctrl and gpio descriptions
        ARM: OMAP2+: Remove unnessary return statement from the void function, omap2_show_dma_caps
        memory: omap-gpmc: Fix parsing of devices
      84e3e9d0
  3. 10 Jul, 2015 20 commits
    • Linus Torvalds's avatar
      Merge branch 'parisc-4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux · b9243b5a
      Linus Torvalds authored
      Pull parisc fixes from Helge Deller:
       "We have one important patch from Dave Anglin and myself which fixes
        PTE/TLB race conditions which caused random segmentation faults on our
        debian buildd servers, and one patch from Alex Ivanov which speeds up
        the graphical text console on the STI framebuffer driver"
      
      * 'parisc-4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
        parisc: Fix some PTE/TLB race conditions and optimize __flush_tlb_range based on timing results
        stifb: Implement hardware accelerated copyarea
      b9243b5a
    • James Morris's avatar
    • Stephen Smalley's avatar
      selinux: fix mprotect PROT_EXEC regression caused by mm change · 892e8cac
      Stephen Smalley authored
      commit 66fc1303 ("mm: shmem_zero_setup
      skip security check and lockdep conflict with XFS") caused a regression
      for SELinux by disabling any SELinux checking of mprotect PROT_EXEC on
      shared anonymous mappings.  However, even before that regression, the
      checking on such mprotect PROT_EXEC calls was inconsistent with the
      checking on a mmap PROT_EXEC call for a shared anonymous mapping.  On a
      mmap, the security hook is passed a NULL file and knows it is dealing
      with an anonymous mapping and therefore applies an execmem check and no
      file checks.  On a mprotect, the security hook is passed a vma with a
      non-NULL vm_file (as this was set from the internally-created shmem
      file during mmap) and therefore applies the file-based execute check
      and no execmem check.  Since the aforementioned commit now marks the
      shmem zero inode with the S_PRIVATE flag, the file checks are disabled
      and we have no checking at all on mprotect PROT_EXEC.  Add a test to
      the mprotect hook logic for such private inodes, and apply an execmem
      check in that case.  This makes the mmap and mprotect checking
      consistent for shared anonymous mappings, as well as for /dev/zero and
      ashmem.
      
      Cc: <stable@vger.kernel.org> # 4.1.x
      Signed-off-by: default avatarStephen Smalley <sds@tycho.nsa.gov>
      Signed-off-by: default avatarPaul Moore <pmoore@redhat.com>
      892e8cac
    • Linus Torvalds's avatar
      Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux · 1604f871
      Linus Torvalds authored
      Pull arm64 fixes and clean-up from Catalin Marinas:
       - ACPI fix when checking the validity of the GICC MADT subtable
       - handle debug exceptions in the el*_inv exception entries
       - remove pointless register assignment in two compat syscall wrappers
       - unnecessary include path
       - defconfig update
      
      * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
        arm64: entry32: remove pointless register assignment
        arm64: entry: handle debug exceptions in el*_inv
        arm64: Keep the ARM64 Kconfig selects sorted
        ACPI / ARM64 : use the new BAD_MADT_GICC_ENTRY macro
        ACPI / ARM64: add BAD_MADT_GICC_ENTRY() macro
        arm64: defconfig: Add Ceva ahci to the defconfig
        arm64: remove another unnecessary libfdt include path
      1604f871
    • John David Anglin's avatar
      parisc: Fix some PTE/TLB race conditions and optimize __flush_tlb_range based on timing results · 01ab6057
      John David Anglin authored
      The increased use of pdtlb/pitlb instructions seemed to increase the
      frequency of random segmentation faults building packages. Further, we
      had a number of cases where TLB inserts would repeatedly fail and all
      forward progress would stop. The Haskell ghc package caused a lot of
      trouble in this area. The final indication of a race in pte handling was
      this syslog entry on sibaris (C8000):
      
       swap_free: Unused swap offset entry 00000004
       BUG: Bad page map in process mysqld  pte:00000100 pmd:019bbec5
       addr:00000000ec464000 vm_flags:00100073 anon_vma:0000000221023828 mapping: (null) index:ec464
       CPU: 1 PID: 9176 Comm: mysqld Not tainted 4.0.0-2-parisc64-smp #1 Debian 4.0.5-1
       Backtrace:
        [<0000000040173eb0>] show_stack+0x20/0x38
        [<0000000040444424>] dump_stack+0x9c/0x110
        [<00000000402a0d38>] print_bad_pte+0x1a8/0x278
        [<00000000402a28b8>] unmap_single_vma+0x3d8/0x770
        [<00000000402a4090>] zap_page_range+0xf0/0x198
        [<00000000402ba2a4>] SyS_madvise+0x404/0x8c0
      
      Note that the pte value is 0 except for the accessed bit 0x100. This bit
      shouldn't be set without the present bit.
      
      It should be noted that the madvise system call is probably a trigger for many
      of the random segmentation faults.
      
      In looking at the kernel code, I found the following problems:
      
      1) The pte_clear define didn't take TLB lock when clearing a pte.
      2) We didn't test pte present bit inside lock in exception support.
      3) The pte and tlb locks needed to merged in order to ensure consistency
      between page table and TLB. This also has the effect of serializing TLB
      broadcasts on SMP systems.
      
      The attached change implements the above and a few other tweaks to try
      to improve performance. Based on the timing code, TLB purges are very
      slow (e.g., ~ 209 cycles per page on rp3440). Thus, I think it
      beneficial to test the split_tlb variable to avoid duplicate purges.
      Probably, all PA 2.0 machines have combined TLBs.
      
      I dropped using __flush_tlb_range in flush_tlb_mm as I realized all
      applications and most threads have a stack size that is too large to
      make this useful. I added some comments to this effect.
      
      Since implementing 1 through 3, I haven't had any random segmentation
      faults on mx3210 (rp3440) in about one week of building code and running
      as a Debian buildd.
      Signed-off-by: default avatarJohn David Anglin <dave.anglin@bell.net>
      Cc: stable@vger.kernel.org # v3.18+
      Signed-off-by: default avatarHelge Deller <deller@gmx.de>
      01ab6057
    • Alex Ivanov's avatar
      stifb: Implement hardware accelerated copyarea · cb908ed3
      Alex Ivanov authored
      This patch adds hardware assisted scrolling. The code is based upon the
      following investigation: https://parisc.wiki.kernel.org/index.php/NGLE#Blitter
      
      A simple 'time ls -la /usr/bin' test shows 1.6x speed increase over soft
      copy and 2.3x increase over FBINFO_READS_FAST (prefer soft copy over
      screen redraw) on Artist framebuffer.
      Signed-off-by: default avatarAlex Ivanov <lausgans@gmail.com>
      Signed-off-by: default avatarHelge Deller <deller@gmx.de>
      cb908ed3
    • Linus Torvalds's avatar
      Merge tag 'powerpc-4.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux · 3cdeb9d1
      Linus Torvalds authored
      Pull powerpc fixes from Michael Ellerman:
       - opal-prd mmap fix from Vaidy
       - set kernel taint for MCEs from Daniel
       - alignment exception description from Anton
       - ppc4xx_hsta_msi build fix from Daniel
       - opal-elog interrupt fix from Alistair
       - core_idle_state race fix from Shreyas
       - hv-24x7 lockdep fix from Sukadev
       - multiple cxl fixes from Daniel, Ian, Mikey & Maninder
       - update MAINTAINERS to point at shared tree
      
      * tag 'powerpc-4.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
        cxl: Check if afu is not null in cxl_slbia
        powerpc: Update MAINTAINERS to point at shared tree
        powerpc/perf/24x7: Fix lockdep warning
        cxl: Fix off by one error allowing subsequent mmap page to be accessed
        cxl: Fail mmap if requested mapping is larger than assigned problem state area
        cxl: Fix refcounting in kernel API
        powerpc/powernv: Fix race in updating core_idle_state
        powerpc/powernv: Fix opal-elog interrupt handler
        powerpc/ppc4xx_hsta_msi: Include ppc-pci.h to fix reference to hose_list
        powerpc: Add plain English description for alignment exception oopses
        cxl: Test the correct mmio space before unmapping
        powerpc: Set the correct kernel taint on machine check errors
        cxl/vphb.c: Use phb pointer after NULL check
        powerpc/powernv: Fix vma page prot flags in opal-prd driver
      3cdeb9d1
    • Ross Zwisler's avatar
      nfit: add support for NVDIMM "latch" flag · f0f2c072
      Ross Zwisler authored
      Add support in the NFIT BLK I/O path for the "latch" flag
      defined in the "Get Block NVDIMM Flags" _DSM function:
      
      http://pmem.io/documents/NVDIMM_DSM_Interface_Example.pdf
      
      This flag requires the driver to read back the command register after it
      is written in the block I/O path.  This ensures that the hardware has
      fully processed the new command and moved the aperture appropriately.
      Signed-off-by: default avatarRoss Zwisler <ross.zwisler@linux.intel.com>
      Acked-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
      Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
      f0f2c072
    • Ross Zwisler's avatar
      nfit: update block I/O path to use PMEM API · c2ad2954
      Ross Zwisler authored
      Update the nfit block I/O path to use the new PMEM API and to adhere to
      the read/write flows outlined in the "NVDIMM Block Window Driver
      Writer's Guide":
      
      http://pmem.io/documents/NVDIMM_Driver_Writers_Guide.pdf
      
      This includes adding support for targeted NVDIMM flushes called "flush
      hints" in the ACPI 6.0 specification:
      
      http://www.uefi.org/sites/default/files/resources/ACPI_6.0.pdf
      
      For performance and media durability the mapping for a BLK aperture is
      moved to a write-combining mapping which is consistent with
      memcpy_to_pmem() and wmb_blk().
      Signed-off-by: default avatarRoss Zwisler <ross.zwisler@linux.intel.com>
      Acked-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
      Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
      c2ad2954
    • Dan Williams's avatar
      tools/testing/nvdimm: add mock acpi_nfit_flush_address entries to nfit_test · 9d27a87e
      Dan Williams authored
      In preparation for fixing the BLK path to properly use "directed
      pcommit" enable the unit test infrastructure to emit mock "flush"
      tables.  Writes to these flush addresses trigger a memory controller to
      flush its internal buffers to persistent media, similar to the x86
      "pcommit" instruction.
      Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
      9d27a87e
    • Dan Williams's avatar
      tools/testing/nvdimm: fix return code for unimplemented commands · f7ec8368
      Dan Williams authored
      The implementation for the new "DIMM Flags" DSM relies on the -ENOTTY
      return code to indicate that the flags are unimplimented and to fall
      back to a safe default.  As is the -ENXIO error code erroneoously
      indicates to fail enabling a BLK region.
      Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
      f7ec8368
    • Dan Williams's avatar
      tools/testing/nvdimm: mock ioremap_wt · b1b2e623
      Dan Williams authored
      In the 4.2-rc1 merge the default_memremap_pmem() implementation switched
      from ioremap_nocache() to ioremap_wt().  Add it to the list of mocked
      routines to restore the ability to run the unit tests.
      Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
      b1b2e623
    • Ross Zwisler's avatar
      pmem: add maintainer for include/linux/pmem.h · b864bc17
      Ross Zwisler authored
      The file include/linux/pmem.h was recently created to hold the PMEM API,
      and is logically part of the PMEM driver.  Add an entry for this file to
      MAINTAINERS.
      Signed-off-by: default avatarRoss Zwisler <ross.zwisler@linux.intel.com>
      Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
      b864bc17
    • Dmitry Torokhov's avatar
      Revert "Input: synaptics - allocate 3 slots to keep stability in image sensors" · dbf3c370
      Dmitry Torokhov authored
      This reverts commit 63c4fda3 as it
      causes issues with detecting 3-finger taps.
      
      Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=100481
      Cc: stable@vger.kernel.org
      Acked-by: default avatarBenjamin Tissoires <benjamin.tissoires@redhat.com>
      dbf3c370
    • Mark Rutland's avatar
      arm64: entry32: remove pointless register assignment · ad2daa85
      Mark Rutland authored
      We currently set x27 in compat_sys_sigreturn_wrapper and
      compat_sys_rt_sigreturn_wrapper, similarly to what we do with r8/why on
      32-bit ARM, in an attempt to prevent sigreturns from being restarted.
      
      However, on arm64 we have always used pt_regs::syscallno for syscall
      restarting (for both native and compat tasks), and x27 is never
      inspected again before being overwritten in kernel_exit.
      
      This patch removes the pointless register assignments.
      Signed-off-by: default avatarMark Rutland <mark.rutland@arm.com>
      Cc: Will Deacon <will.deacon@arm.com>
      Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
      ad2daa85
    • Dave Airlie's avatar
      Merge tag 'omapdrm-4.2-fixes' of... · 2d28b633
      Dave Airlie authored
      Merge tag 'omapdrm-4.2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux into drm-fixes
      
      omapdrm fixes for 4.2
      
      Small fixes for omapdrm, including:
      * Fix packed 24 bit color formats
      * Ensure the planes are inside the crtc
      * Handle out-of-dma-memory error
      
      * tag 'omapdrm-4.2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux:
        drm/omap: replace ALIGN(PAGE_SIZE) by PAGE_ALIGN
        drm/omap: fix align_pitch() for 24 bits per pixel
        drm/omap: fix omap_gem_put_paddr() error handling
        drm/omap: fix omap_framebuffer_unpin() error handling
        drm/omap: increase DMM transaction timeout
        drm/omap: check that plane is inside crtc
        drm/omap: return error if dma_alloc_writecombine fails
      2d28b633
    • Dave Airlie's avatar
      Merge tag 'drm-intel-fixes-2015-07-09' of git://anongit.freedesktop.org/drm-intel into drm-fixes · 59e7a16d
      Dave Airlie authored
      Pile of fixes for either 4.2 issues or cc: stable. This should fix the 2nd
      kind of WARNING Linus's been seeing, please ask him to scream if that's
      not the case.
      
      * tag 'drm-intel-fixes-2015-07-09' of git://anongit.freedesktop.org/drm-intel:
        Revert "drm/i915: Allocate context objects from stolen"
        drm/i915: Declare the swizzling unknown for L-shaped configurations
        drm/i915: Use crtc_state->active in primary check_plane func
        drm/i915: Check crtc->active in intel_crtc_disable_planes
        drm/i915: Restore all GGTT VMAs on resume
        drm/i915/chv: fix HW readout of the port PLL fractional divider
      59e7a16d
    • Dave Airlie's avatar
      Merge tag 'drm-amdkfd-fixes-2015-07-09' of... · 008b3f1f
      Dave Airlie authored
      Merge tag 'drm-amdkfd-fixes-2015-07-09' of git://people.freedesktop.org/~gabbayo/linux into drm-fixes
      
      A single fix so far for 4.2:
      - checking a pointer is not null before using it
      
      * tag 'drm-amdkfd-fixes-2015-07-09' of git://people.freedesktop.org/~gabbayo/linux:
        drm/amdkfd: validate pdd where it acquired first
      008b3f1f
    • Dave Airlie's avatar
      Merge branch 'drm-fixes-4.2' of git://people.freedesktop.org/~agd5f/linux into drm-fixes · 9d5715f9
      Dave Airlie authored
      radeon and amdgpu fixes for 4.2.  All over the place:
      - fix cursor corruption on resume and re-enable no VT switch on suspend
      - vblank fixes
      - fix gpuvm error messages
      - misc other fixes
      
      * 'drm-fixes-4.2' of git://people.freedesktop.org/~agd5f/linux:
        drm/radeon: disable vce init on cayman (v2)
        drm/amdgpu: fix timeout calculation
        drm/radeon: check if BO_VA is set before adding it to the invalidation list
        drm/radeon: allways add the VM clear duplicate
        Revert "Revert "drm/radeon: dont switch vt on suspend""
        drm/radeon: Fold radeon_set_cursor() into radeon_show_cursor()
        drm/radeon: unpin cursor BOs on suspend and pin them again on resume (v2)
        drm/radeon: Clean up reference counting and pinning of the cursor BOs
        drm/radeon: fix underflow in r600_cp_dispatch_texture()
        drm/radeon: default to 2048 MB GART size on SI+
        drm/radeon: fix HDP flushing
        drm/radeon: use RCU query for GEM_BUSY syscall
        drm/amdgpu: Handle irqs only based on irq ring, not irq status regs.
        drm/radeon: Handle irqs only based on irq ring, not irq status regs.
      9d5715f9
    • Daniel Axtens's avatar
      cxl: Check if afu is not null in cxl_slbia · 2c069a11
      Daniel Axtens authored
      The pointer to an AFU in the adapter's list of AFUs can be null
      if we're in the process of removing AFUs. The afu_list_lock
      doesn't guard against this.
      
      Say we have 2 slices, and we're in the process of removing cxl.
       - We remove the AFUs in order (see cxl_remove). In cxl_remove_afu
         for AFU 0, we take the lock, set adapter->afu[0] = NULL, and
         release the lock.
       - Then we get an slbia. In cxl_slbia we take the lock, and set
         afu = adapter->afu[0], which is NULL.
       - Therefore our attempt to check afu->enabled will blow up.
      
      Therefore, check if afu is a null pointer before dereferencing it.
      
      Cc: stable@vger.kernel.org
      Signed-off-by: default avatarDaniel Axtens <dja@axtens.net>
      Acked-by: default avatarMichael Neuling <mikey@neuling.org>
      Acked-by: default avatarIan Munsie <imunsie@au1.ibm.com>
      Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
      2c069a11
  4. 09 Jul, 2015 11 commits