1. 31 Aug, 2016 2 commits
  2. 26 Aug, 2016 5 commits
    • Will Deacon's avatar
      arm64: errata: Pass --fix-cortex-a53-843419 to ld if workaround enabled · 6ffe9923
      Will Deacon authored
      Cortex-A53 erratum 843419 is worked around by the linker, although it is
      a configure-time option to GCC as to whether ld is actually asked to
      apply the workaround or not.
      
      This patch ensures that we pass --fix-cortex-a53-843419 to the linker
      when both CONFIG_ARM64_ERRATUM_843419=y and the linker supports the
      option.
      Acked-by: default avatarArd Biesheuvel <ard.biesheuvel@linaro.org>
      Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
      6ffe9923
    • James Morse's avatar
      Revert "arm64: hibernate: Refuse to hibernate if the boot cpu is offline" · b2d8b0cb
      James Morse authored
      Now that we use the MPIDR to resume on the same CPU that we hibernated on,
      we no longer need to refuse to hibernate if the boot cpu is offline. (Which
      we can't possibly know if kexec causes logical CPUs to be renumbered).
      
      This reverts commit 1fe492ce.
      Signed-off-by: default avatarJames Morse <james.morse@arm.com>
      Acked-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
      Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
      b2d8b0cb
    • James Morse's avatar
      arm64: hibernate: Resume when hibernate image created on non-boot CPU · 8ec058fd
      James Morse authored
      disable_nonboot_cpus() assumes that the lowest numbered online CPU is
      the boot CPU, and that this is the correct CPU to run any power
      management code on.
      
      On arm64 CPU0 can be taken offline. For hibernate/resume this means we
      may hibernate on a CPU other than CPU0. If the system is rebooted with
      kexec 'CPU0' will be assigned to a different CPU. This complicates
      hibernate/resume as now we can't trust the CPU numbers.
      
      We currently forbid hibernate if CPU0 has been hotplugged out to avoid
      this situation without kexec.
      
      Save the MPIDR of the CPU we hibernated on in the hibernate arch-header,
      use hibernate_resume_nonboot_cpu_disable() to direct which CPU we should
      resume on based on the MPIDR of the CPU we hibernated on. This allows us to
      hibernate/resume on any CPU, even if the logical numbers have been
      shuffled by kexec.
      Signed-off-by: default avatarJames Morse <james.morse@arm.com>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
      Reviewed-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
      Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
      8ec058fd
    • James Morse's avatar
      cpu/hotplug: Allow suspend/resume CPU to be specified · d391e552
      James Morse authored
      disable_nonboot_cpus() assumes that the lowest numbered online CPU is
      the boot CPU, and that this is the correct CPU to run any power
      management code on.
      
      On x86 this is always correct, as CPU0 cannot (easily) by taken offline.
      
      On arm64 CPU0 can be taken offline. For hibernate/resume this means we
      may hibernate on a CPU other than CPU0. If the system is rebooted with
      kexec 'CPU0' will be assigned to a different physical CPU. This
      complicates hibernate/resume as now we can't trust the CPU numbers.
      Arch code can find the correct physical CPU, and ensure it is online
      before resume from hibernate begins, but also needs to influence
      disable_nonboot_cpus()s choice of CPU.
      
      Rename disable_nonboot_cpus() as freeze_secondary_cpus() and add an
      argument indicating which CPU should be left standing. Follow the logic
      in migrate_to_reboot_cpu() to use the lowest numbered online CPU if the
      requested CPU is not online.
      Add disable_nonboot_cpus() as an inline function that has the existing
      behaviour.
      
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Reviewed-by: default avatarThomas Gleixner <tglx@linutronix.de>
      Signed-off-by: default avatarJames Morse <james.morse@arm.com>
      Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
      d391e552
    • Mark Rutland's avatar
      arm64: always enable DEBUG_RODATA and remove the Kconfig option · 40982fd6
      Mark Rutland authored
      Follow the example set by x86 in commit 9ccaf77c ("x86/mm:
      Always enable CONFIG_DEBUG_RODATA and remove the Kconfig option"), and
      make these protections a fundamental security feature rather than an
      opt-in. This also results in a minor code simplification.
      
      For those rare cases when users wish to disable this protection (e.g.
      for debugging), this can be done by passing 'rodata=off' on the command
      line.
      
      As DEBUG_RODATA_ALIGN is only intended to address a performance/memory
      tradeoff, and does not affect correctness, this is left user-selectable.
      DEBUG_MODULE_RONX is also left user-selectable until the core code
      provides a boot-time option to disable the protection for debugging
      use-cases.
      
      Cc: Catalin Marinas <catalin.marinas@arm.com>
      Acked-by: default avatarArd Biesheuvel <ard.biesheuvel@linaro.org>
      Acked-by: default avatarKees Cook <keescook@chromium.org>
      Acked-by: default avatarLaura Abbott <labbott@redhat.com>
      Signed-off-by: default avatarMark Rutland <mark.rutland@arm.com>
      Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
      40982fd6
  3. 25 Aug, 2016 6 commits
    • AKASHI Takahiro's avatar
      arm64: mark reserved memblock regions explicitly in iomem · e7cd1903
      AKASHI Takahiro authored
      Kdump(kexec-tools) parses /proc/iomem to identify all the memory regions
      on the system. Since the current kernel names "nomap" regions, like UEFI
      runtime services code/data, as "System RAM," kexec-tools sets up elf core
      header to include them in a crash dump file (/proc/vmcore).
      
      Then crash dump kernel parses UEFI memory map again, re-marks those regions
      as "nomap" and does not create a memory mapping for them unlike the other
      areas of System RAM. In this case, copying /proc/vmcore through
      copy_oldmem_page() on crash dump kernel will end up with a kernel abort,
      as reported in [1].
      
      This patch names all the "nomap" regions explicitly as "reserved" so that
      we can exclude them from a crash dump file. acpi_os_ioremap() must also
      be modified because those regions have WB attributes [2].
      
      Apart from kdump, this change also matches x86's use of acpi (and
      /proc/iomem).
      
      [1] http://lists.infradead.org/pipermail/linux-arm-kernel/2016-August/448186.html
      [2] http://lists.infradead.org/pipermail/linux-arm-kernel/2016-August/450089.htmlReviewed-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
      Tested-by: default avatarJames Morse <james.morse@arm.com>
      Reviewed-by: default avatarJames Morse <james.morse@arm.com>
      Signed-off-by: default avatarAKASHI Takahiro <takahiro.akashi@linaro.org>
      Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
      e7cd1903
    • James Morse's avatar
      arm64: hibernate: Support DEBUG_PAGEALLOC · 5ebe3a44
      James Morse authored
      DEBUG_PAGEALLOC removes the valid bit of page table entries to prevent
      any access to unallocated memory. Hibernate uses this as a hint that those
      pages don't need to be saved/restored. This patch adds the
      kernel_page_present() function it uses.
      
      hibernate.c copies the resume kernel's linear map for use during restore.
      Add _copy_pte() to fill-in the holes made by DEBUG_PAGEALLOC in the resume
      kernel, so we can restore data the original kernel had at these addresses.
      
      Finally, DEBUG_PAGEALLOC means the linear-map alias of KERNEL_START to
      KERNEL_END may have holes in it, so we can't lazily clean this whole
      area to the PoC. Only clean the new mmuoff region, and the kernel/kvm
      idmaps.
      
      This reverts commit da24eb1f.
      Reported-by: default avatarWill Deacon <will.deacon@arm.com>
      Signed-off-by: default avatarJames Morse <james.morse@arm.com>
      Cc: Catalin Marinas <catalin.marinas@arm.com>
      Reviewed-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
      Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
      5ebe3a44
    • James Morse's avatar
      arm64: vmlinux.ld: Add mmuoff data sections and move mmuoff text into idmap · b6113038
      James Morse authored
      Resume from hibernate needs to clean any text executed by the kernel with
      the MMU off to the PoC. Collect these functions together into the
      .idmap.text section as all this code is tightly coupled and also needs
      the same cleaning after resume.
      
      Data is more complicated, secondary_holding_pen_release is written with
      the MMU on, clean and invalidated, then read with the MMU off. In contrast
      __boot_cpu_mode is written with the MMU off, the corresponding cache line
      is invalidated, so when we read it with the MMU on we don't get stale data.
      These cache maintenance operations conflict with each other if the values
      are within a Cache Writeback Granule (CWG) of each other.
      Collect the data into two sections .mmuoff.data.read and .mmuoff.data.write,
      the linker script ensures mmuoff.data.write section is aligned to the
      architectural maximum CWG of 2KB.
      Signed-off-by: default avatarJames Morse <james.morse@arm.com>
      Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Reviewed-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
      Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
      b6113038
    • James Morse's avatar
      arm64: Create sections.h · ee78fdc7
      James Morse authored
      Each time new section markers are added, kernel/vmlinux.ld.S is updated,
      and new extern char __start_foo[] definitions are scattered through the
      tree.
      
      Create asm/include/sections.h to collect these definitions (and include
      the existing asm-generic version).
      Signed-off-by: default avatarJames Morse <james.morse@arm.com>
      Reviewed-by: default avatarMark Rutland <mark.rutland@arm.com>
      Tested-by: default avatarMark Rutland <mark.rutland@arm.com>
      Reviewed-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
      Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
      ee78fdc7
    • Catalin Marinas's avatar
      arm64: Introduce execute-only page access permissions · cab15ce6
      Catalin Marinas authored
      The ARMv8 architecture allows execute-only user permissions by clearing
      the PTE_UXN and PTE_USER bits. However, the kernel running on a CPU
      implementation without User Access Override (ARMv8.2 onwards) can still
      access such page, so execute-only page permission does not protect
      against read(2)/write(2) etc. accesses. Systems requiring such
      protection must enable features like SECCOMP.
      
      This patch changes the arm64 __P100 and __S100 protection_map[] macros
      to the new __PAGE_EXECONLY attributes. A side effect is that
      pte_user() no longer triggers for __PAGE_EXECONLY since PTE_USER isn't
      set. To work around this, the check is done on the PTE_NG bit via the
      pte_ng() macro. VM_READ is also checked now for page faults.
      Reviewed-by: default avatarWill Deacon <will.deacon@arm.com>
      Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
      Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
      cab15ce6
    • Pratyush Anand's avatar
      arm64: kprobe: Always clear pstate.D in breakpoint exception handler · 7419333f
      Pratyush Anand authored
      Whenever we are hitting a kprobe from a none-kprobe debug exception handler,
      we hit an infinite occurrences of "Unexpected kernel single-step exception
      at EL1"
      
      PSTATE.D is debug exception mask bit. It is set whenever we enter into an
      exception mode. When it is set then Watchpoint, Breakpoint, and Software
      Step exceptions are masked. However, software Breakpoint Instruction
      exceptions can never be masked. Therefore, if we ever execute a BRK
      instruction, irrespective of D-bit setting, we will be receiving a
      corresponding breakpoint exception.
      
      For example:
      
      - We are executing kprobe pre/post handler, and kprobe has been inserted in
        one of the instruction of a function called by handler. So, it executes
        BRK instruction and we land into the case of KPROBE_REENTER. (This case is
        already handled by current code)
      
      - We are executing uprobe handler or any other BRK handler such as in
        WARN_ON (BRK BUG_BRK_IMM), and we trace that path using kprobe.So, we
        enter into kprobe breakpoint handler,from another BRK handler.(This case
        is not being handled currently)
      
      In all such cases kprobe breakpoint exception will be raised when we were
      already in debug exception mode. SPSR's D bit (bit 9) shows the value of
      PSTATE.D immediately before the exception was taken. So, in above example
      cases we would find it set in kprobe breakpoint handler.  Single step
      exception will always be followed by a kprobe breakpoint exception.However,
      it will only be raised gracefully if we clear D bit while returning from
      breakpoint exception.  If D bit is set then, it results into undefined
      exception and when it's handler enables dbg then single step exception is
      generated, however it will never be handled(because address does not match
      and therefore treated as unexpected).
      
      This patch clears D-flag unconditionally in setup_singlestep, so that we can
      always get single step exception correctly after returning from breakpoint
      exception. Additionally, it also removes D-flag set statement for
      KPROBE_REENTER return path, because debug exception for KPROBE_REENTER will
      always take place in a debug exception state. So, D-flag will already be set
      in this case.
      Acked-by: default avatarSandeepa Prabhu <sandeepa.s.prabhu@gmail.com>
      Acked-by: default avatarMasami Hiramatsu <mhiramat@kernel.org>
      Signed-off-by: default avatarPratyush Anand <panand@redhat.com>
      Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
      7419333f
  4. 22 Aug, 2016 10 commits
  5. 21 Aug, 2016 3 commits
  6. 20 Aug, 2016 2 commits
    • Helge Deller's avatar
      parisc: Fix order of EREFUSED define in errno.h · 3eb53b20
      Helge Deller authored
      When building gccgo in userspace, errno.h gets parsed and the go include file
      sysinfo.go is generated.
      
      Since EREFUSED is defined to the same value as ECONNREFUSED, and ECONNREFUSED
      is defined later on in errno.h, this leads to go complaining that EREFUSED
      isn't defined yet.
      
      Fix this trivial problem by moving the define of EREFUSED down after
      ECONNREFUSED in errno.h (and clean up the indenting while touching this line).
      Signed-off-by: default avatarHelge Deller <deller@gmx.de>
      Cc: stable@vger.kernel.org
      3eb53b20
    • Helge Deller's avatar
      parisc: Fix automatic selection of cr16 clocksource · ae141830
      Helge Deller authored
      Commit 54b66800 (parisc: Add native high-resolution sched_clock()
      implementation) added support to use the CPU-internal cr16 counters as reliable
      clocksource with the help of HAVE_UNSTABLE_SCHED_CLOCK.
      
      Sadly the commit missed to remove the hack which prevented cr16 to become the
      default clocksource even on SMP systems.
      Signed-off-by: default avatarHelge Deller <deller@gmx.de>
      Cc: stable@vger.kernel.org # 4.7+
      ae141830
  7. 19 Aug, 2016 10 commits
    • Linus Torvalds's avatar
      Make the hardened user-copy code depend on having a hardened allocator · 6040e576
      Linus Torvalds authored
      The kernel test robot reported a usercopy failure in the new hardened
      sanity checks, due to a page-crossing copy of the FPU state into the
      task structure.
      
      This happened because the kernel test robot was testing with SLOB, which
      doesn't actually do the required book-keeping for slab allocations, and
      as a result the hardening code didn't realize that the task struct
      allocation was one single allocation - and the sanity checks fail.
      
      Since SLOB doesn't even claim to support hardening (and you really
      shouldn't use it), the straightforward solution is to just make the
      usercopy hardening code depend on the allocator supporting it.
      Reported-by: default avatarkernel test robot <xiaolong.ye@intel.com>
      Cc: Kees Cook <keescook@chromium.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      6040e576
    • Linus Torvalds's avatar
      Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux · 8cc9dddd
      Linus Torvalds authored
      Pull i2c fixes from Wolfram Sang:
       "I2C has some pretty standard driver bugfixes and one minor cleanup"
      
      * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
        i2c: meson: Use complete() instead of complete_all()
        i2c: brcmstb: Use complete() instead of complete_all()
        i2c: bcm-kona: Use complete() instead of complete_all()
        i2c: bcm-iproc: Use complete() instead of complete_all()
        i2c: at91: fix support of the "alternative command" feature
        i2c: ocores: add missed clk_disable_unprepare() on failure paths
        i2c: cros-ec-tunnel: Fix usage of cros_ec_cmd_xfer()
        i2c: mux: demux-pinctrl: properly roll back when adding adapter fails
      8cc9dddd
    • Linus Torvalds's avatar
      Merge tag 'dm-4.8-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm · 43f4d36c
      Linus Torvalds authored
      Pull device mapper fixes from Mike Snitzer:
      
       - a stable fix for DM round robin multipath path selector to disable
         preemption before using this_cpu_ptr()
      
       - a slight increase in DM crypt's mempool reserves to make swap ontop
         of DM crypt more performant
      
       - a few DM raid fixes to issues found while testing changes that were
         merged in v4.8-rc1
      
      * tag 'dm-4.8-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
        dm raid: support raid0 with missing metadata devices
        dm raid: enhance attempt_restore_of_faulty_devices() to support more devices
        dm raid: fix restoring of failed devices regression
        dm raid: fix frozen recovery regression
        dm crypt: increase mempool reserve to better support swapping
        dm round robin: do not use this_cpu_ptr() without having preemption disabled
      43f4d36c
    • Linus Torvalds's avatar
      Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi · b2848792
      Linus Torvalds authored
      Pull SCSI fixes from James Bottomley:
       "Six fairly small fixes.  The ipr, mpt3sas and ses ones all trigger
        oopses.  The megaraid one fixes an attach failure on io mapped only
        cards, the fcoe one is an obvious problem in the error path and the
        aacraid one is a theoretical security issue (ability to trick the
        kernel into a buffer overrun)"
      
      * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
        ses: Fix racy cleanup of /sys in remove_dev()
        mpt3sas: Fix resume on WarpDrive flash cards
        ipr: Fix sync scsi scan
        megaraid_sas: Fix probing cards without io port
        aacraid: Check size values after double-fetch from user
        fcoe: Use kfree_skb() instead of kfree()
      b2848792
    • Linus Torvalds's avatar
      Merge tag 'usb-4.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb · 080ebb15
      Linus Torvalds authored
      Pull USB fixes from Greg KH:
       "Here are a number of USB fixes for reported issues for your tree.
      
        The normal amount of gadget fixes, xhci fixes, new device ids, and a
        few other minor things.  All of them have been in linux-next for a
        while, the full details are in the shortlog below"
      
      * tag 'usb-4.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (43 commits)
        xhci: don't dereference a xhci member after removing xhci
        usb: xhci: Fix panic if disconnect
        xhci: really enqueue zero length TRBs.
        xhci: always handle "Command Ring Stopped" events
        cdc-acm: fix wrong pipe type on rx interrupt xfers
        usb: misc: usbtest: add fix for driver hang
        usb: dwc3: gadget: stop processing on HWO set
        usb: dwc3: don't set last bit for ISOC endpoints
        usb: gadget: rndis: free response queue during REMOTE_NDIS_RESET_MSG
        usb: udc: core: fix error handling
        usb: gadget: fsl_qe_udc: off by one in setup_received_handle()
        usb/gadget: fix gadgetfs aio support.
        usb: gadget: composite: Fix return value in case of error
        usb: gadget: uvc: Fix return value in case of error
        usb: gadget: fix check in sync read from ep in gadgetfs
        usb: misc: usbtest: usbtest_do_ioctl may return positive integer
        usb: dwc3: fix missing platform_set_drvdata() in dwc3_of_simple_probe()
        usb: phy: omap-otg: Fix missing platform_set_drvdata() in omap_otg_probe()
        usb: gadget: configfs: add mutex lock before unregister gadget
        usb: gadget: u_ether: fix dereference after null check coverify warning
        ...
      080ebb15
    • Linus Torvalds's avatar
      Merge tag 'xfs-iomap-for-linus-4.8-rc3' of... · a8414fa3
      Linus Torvalds authored
      Merge tag 'xfs-iomap-for-linus-4.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs
      
      Pull xfs and iomap fixes from Dave Chinner:
       "Changes in this update:
      
        Regression fixes for XFS changes introduce in 4.8-rc1:
         - buffer IO accounting assert failure
         - ENOSPC block accounting reservation issue
         - DAX IO path page cache invalidation fix
         - rmapbt on-disk block count in agf
         - correct classification of rmap block type when updating AGFL.
         - iomap support for attribute fork mapping
      
        Regression fixes for iomap infrastructure in 4.8-rc1:
         - fiemap: honor FIEMAP_FLAG_SYNC
         - fiemap: implement FIEMAP_FLAG_XATTR support to fix XFS regression
         - make mark_page_accessed and pagefault_disable usage consistent with
           other IO paths"
      
      * tag 'xfs-iomap-for-linus-4.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs:
        xfs: remove OWN_AG rmap when allocating a block from the AGFL
        xfs: (re-)implement FIEMAP_FLAG_XATTR
        xfs: simplify xfs_file_iomap_begin
        iomap: mark ->iomap_end as optional
        iomap: prepare iomap_fiemap for attribute mappings
        iomap: fiemap should honor the FIEMAP_FLAG_SYNC flag
        iomap: remove superflous pagefault_disable from iomap_write_actor
        iomap: remove superflous mark_page_accessed from iomap_write_actor
        xfs: store rmapbt block count in the AGF
        xfs: don't invalidate whole file on DAX read/write
        xfs: fix bogus space reservation in xfs_iomap_write_allocate
        xfs: don't assert fail on non-async buffers on ioacct decrement
      a8414fa3
    • Linus Torvalds's avatar
      Merge tag 'hwmon-for-linus-v4.8-rc2' of... · 3f318b3c
      Linus Torvalds authored
      Merge tag 'hwmon-for-linus-v4.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
      
      Pull hwmon fixes from Guenter Roeck:
       "Fix a bug in it87 driver and URLs in ftsteutates driver"
      
      * tag 'hwmon-for-linus-v4.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
        hwmon: (ftsteutates) Correct ftp urls in driver documentation
        hwmon: (it87) Features mask must be 32 bit wide
      3f318b3c
    • Linus Torvalds's avatar
      Merge tag 'drm-fixes-for-4.8-rc3-2' of git://people.freedesktop.org/~airlied/linux · 952b159f
      Linus Torvalds authored
      Pull more drm fixes from Dave Airlie:
       "Daniel pointed out I'd missed some i915 fixes, and I also found a
        single etnaviv fix I missed.
      
        So here they are"
      
      * tag 'drm-fixes-for-4.8-rc3-2' of git://people.freedesktop.org/~airlied/linux:
        drm/etnaviv: take GPU lock later in the submit process
        drm/i915: Fix modeset handling during gpu reset, v5.
        drm/i915: fix aliasing_ppgtt leak
        drm/i915: fix WaInsertDummyPushConstPs
        drm/i915: Fix iboost setting for SKL Y/U DP DDI buffer translation entry 2
        drm/i915/gen9: Give one extra block per line for SKL plane WM calculations
        drm/i915: Acquire audio powerwell for HD-Audio registers
        drm/i915: Add missing rpm wakelock to GGTT pread
        drm/i915/fbc: FBC causes display flicker when VT-d is enabled on Skylake
        drm/i915: Clean up the extra RPM ref on CHV with i915.enable_rc6=0
        drm/i915: Program iboost settings for HDMI/DVI on SKL
        drm/i915: Fix iboost setting for DDI with 4 lanes on SKL
        drm/i915: Handle ENOSPC after failing to insert a mappable node
        drm/i915: Flush GT idle status upon reset
      952b159f
    • Linus Torvalds's avatar
      Merge tag 'devicetree-fixes-for-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux · d8298d26
      Linus Torvalds authored
      Pull DeviceTree fixes from Rob Herring:
      
       - a couple of DT node ref counting fixes
      
       - fix __unflatten_device_tree for PPC PCI hotplug case
      
       - rework marking irq controllers as OF_POPULATED in cases where real
         driver is used.
      
       - disable of_platform_default_populate_init on PPC.  The change in
         initcall order causes problems which need to be sorted out later.
      
      * tag 'devicetree-fixes-for-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
        of: fix reference counting in of_graph_get_endpoint_by_regs
        of/platform: disable the of_platform_default_populate_init() for all the ppc boards
        ARM: imx6: mark GPC node as not populated after irq init to probe pm domain driver
        of/irq: Mark interrupt controllers as populated before initialisation
        drivers/of: Validate device node in __unflatten_device_tree()
        of: Delete an unnecessary check before the function call "of_node_put"
      d8298d26
    • Linus Torvalds's avatar
      Merge tag '4.8-doc-fixes' of git://git.lwn.net/linux · 5cae6fe2
      Linus Torvalds authored
      Pull documentation fixes from Jonathan Corbet:
       "Three small fixes for Sphinx-formatted documentation generation"
      
      * tag '4.8-doc-fixes' of git://git.lwn.net/linux:
        doc-rst: customize RTD theme, drop padding of inline literal
        docs: kernel-documentation: remove some highlight directives
        docs: Set the Sphinx default highlight language to "guess"
      5cae6fe2
  8. 18 Aug, 2016 2 commits