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Author SHA1 Message Date
Daniel Vetter
618100f8a8 Add get_eld audio component for i915/HD-audio 
Here are the patchset to add get_eld op to audio component for
 communicating more directly between i915 and HD-audio.
 
 Currently, the HDMI/DP audio status and ELD are notified and obtained
 via the hardware-level communication over HD-audio unsolicited event
 and verbs although the graphics driver holds the exactly same
 information.  As we already have a notification via audio component,
 this is another step forward; namely, the audio driver may fetch
 directly the audio status and ELD via the new component op.
 
 The commits are based on Dave's latest drm-next branch.
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Merge tag 'drm-i915-get-eld' of tiwai/sound into drm-intel-next-queued

Add get_eld audio component for i915/HD-audio

Currently, the HDMI/DP audio status and ELD are notified and obtained
via the hardware-level communication over HD-audio unsolicited event
and verbs although the graphics driver holds the exactly same
information.  As we already have a notification via audio component,
this is another step forward; namely, the audio driver may fetch
directly the audio status and ELD via the new component op.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
 2015-12-11 19:28:27 +01:00
Chris Wilson
506a8e87d8 drm/i915: Add soft-pinning API for execbuffer 
Userspace can pass in an offset that it presumes the object is located
at. The kernel will then do its utmost to fit the object into that
location. The assumption is that userspace is handling its own object
locations (for example along with full-ppgtt) and that the kernel will
rarely have to make space for the user's requests.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

v2: Fixed incorrect eviction found by Michal Winiarski - fix suggested by Chris
Wilson.  Fixed incorrect error paths causing crash found by Michal Winiarski.
(Not published externally)

v3: Rebased because of trivial conflict in object_bind_to_vm.  Fixed eviction
to allow eviction of soft-pinned objects when another soft-pinned object used
by a subsequent execbuffer overlaps reported by Michal Winiarski.
(Not published externally)

v4: Moved soft-pinned objects to the front of ordered_vmas so that they are
pinned first after an address conflict happens to avoid repeated conflicts in
rare cases (Suggested by Chris Wilson).  Expanded comment on
drm_i915_gem_exec_object2.offset to cover this new API.

v5: Added I915_PARAM_HAS_EXEC_SOFTPIN parameter for detecting this capability
(Kristian). Added check for multiple pinnings on eviction (Akash). Made sure
buffers are not considered misplaced without the user specifying
EXEC_OBJECT_SUPPORTS_48B_ADDRESS.  User must assume responsibility for any
addressing workarounds.  Updated object2.offset field comment again to clarify
NO_RELOC case (Chris).  checkpatch cleanup.

v6: Trivial rebase on latest drm-intel-nightly

v7: Catch attempts to pin above the max virtual address size and return
EINVAL (Tvrtko). Decouple EXEC_OBJECT_SUPPORTS_48B_ADDRESS and
EXEC_OBJECT_PINNED flags, user must pass both flags in any attempt to pin
something at an offset above 4GB (Chris, Daniel Vetter).

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Akash Goel <akash.goel@intel.com>
Cc: Vinay Belgaumkar <vinay.belgaumkar@intel.com>
Cc: Michal Winiarski <michal.winiarski@intel.com>
Cc: Zou Nanhai <nanhai.zou@intel.com>
Cc: Kristian Høgsberg <hoegsberg@gmail.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Reviewed-by: Michel Thierry <michel.thierry@intel.com>
Acked-by: PDT
Signed-off-by: Thomas Daniel <thomas.daniel@intel.com>
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1449575707-20933-1-git-send-email-thomas.daniel@intel.com
 2015-12-09 10:20:17 +00:00
Dave Airlie
80d69009ef Merge tag 'drm-intel-next-2015-11-20-merged' of git://anongit.freedesktop.org/drm-intel into drm-next 
drm-intel-next-2015-11-20-rebased:
4 weeks because of my vacation, so a bit more:
- final bits of the typesafe register mmio functions (Ville)
- power domain fix for hdmi detection (Imre)
- tons of fixes and improvements to the psr code (Rodrigo)
- refactoring of the dp detection code (Ander)
- complete rework of the dmc loader and dc5/dc6 handling (Imre, Patrik and
  others)
- dp compliance improvements from Shubhangi Shrivastava
- stop_machine hack from Chris to fix corruptions when updating GTT ptes on bsw
- lots of fifo underrun fixes from Ville
- big pile of fbc fixes and improvements from Paulo
- fix fbdev failures paths (Tvrtko and Lukas Wunner)
- dp link training refactoring (Ander)
- interruptible prepare_plane for atomic (Maarten)
- basic kabylake support (Deepak&Rodrigo)
- don't leak ringspace on resets (Chris)
drm-intel-next-2015-10-23:
- 2nd attempt at atomic watermarks from Matt, but just prep for now
- fixes all over

* tag 'drm-intel-next-2015-11-20-merged' of git://anongit.freedesktop.org/drm-intel: (209 commits)
  drm/i915: Update DRIVER_DATE to 20151120
  drm/i915: take a power domain reference while checking the HDMI live status
  drm/i915: take a power domain ref only when needed during HDMI detect
  drm/i915: Tear down fbdev if initialization fails
  async: export current_is_async()
  Revert "drm/i915: Initialize HWS page address after GPU reset"
  drm/i915: Fix oops caused by fbdev initialization failure
  drm/i915: Fix i915_ggtt_view_equal to handle rotation correctly
  drm/i915: Stuff rotation params into view union
  drm/i915: Drop return value from intel_fill_fb_ggtt_view
  drm/i915 : Fix to remove unnecsessary checks in postclose function.
  drm/i915: add MISSING_CASE to a few port/aux power domain helpers
  drm/i915/ddi: fix intel_display_port_aux_power_domain() after HDMI detect
  drm/i915: Remove platform specific *_dp_detect() functions
  drm/i915: Don't do edp panel detection in g4x_dp_detect()
  drm/i915: Send TP1 TP2/3 even when panel claims no NO_TRAIN_ON_EXIT.
  drm/i915: PSR: Don't Skip aux handshake on DP_PSR_NO_TRAIN_ON_EXIT.
  drm/i915: Reduce PSR re-activation time for VLV/CHV.
  drm/i915: Delay first PSR activation.
  drm/i915: Type safe register read/write
  ...
 2015-12-01 08:01:53 +10:00
Christoph Hellwig
0f42a6a9b8 nfs: use btrfs ioctl defintions for clone 
The NFS CLONE_RANGE defintion was wrong and thus never worked.  Fix this
by simply using the btrfs ioctl defintion.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
 2015-11-23 21:53:08 -05:00
Daniel Vetter
92907cbbef Linux 4.4-rc2 
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Merge tag 'v4.4-rc2' into drm-intel-next-queued

Linux 4.4-rc2

Backmerge to get at

commit 1b0e3a049e
Author: Imre Deak <imre.deak@intel.com>
Date:   Thu Nov 5 23:04:11 2015 +0200

    drm/i915/skl: disable display side power well support for now

so that we can proplery re-eanble skl power wells in -next.

Conflicts are just adjacent lines changed, except for intel_fbdev.c
where we need to interleave the changs. Nothing nefarious.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
 2015-11-23 09:04:05 +01:00
Ville Syrjälä
8697600b40 drm/i915: Make the high dword offset more explicit in i915_reg_read_ioctl 
Store the upper dword of the register offset in the whitelist as well.
This would allow it to read register where the two halves aren't sitting
right next to each other, and it'll make it easier to make register
access type safe.

While at it change the register offsets to u32 from u64. Our register
space isn't quite that big, yet :)

v2: Use ldw/udw as the suffixes, and add a note about
    64bit wide split regs (Chris)

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1446839021-18599-1-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
 2015-11-18 14:35:16 +02:00
Linus Torvalds
934f98d7e8 VFIO updates for v4.4-rc1 
- Use kernel interfaces for VPD emulation (Alex Williamson)
  - Platform fix for releasing IRQs (Eric Auger)
  - Type1 IOMMU always advertises PAGE_SIZE support when smaller
    mapping sizes are available (Eric Auger)
  - Platform fixes for incorrectly using copies of structures rather
    than pointers to structures (James Morse)
  - Rework platform reset modules, fix leak, and add AMD xgbe reset
    module (Eric Auger)
  - Fix vfio_device_get_from_name() return value (Joerg Roedel)
  - No-IOMMU interface (Alex Williamson)
  - Fix potential out of bounds array access in PCI config handling
    (Dan Carpenter)
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Merge tag 'vfio-v4.4-rc1' of git://github.com/awilliam/linux-vfio

Pull VFIO updates from Alex Williamson:
 - Use kernel interfaces for VPD emulation (Alex Williamson)
 - Platform fix for releasing IRQs (Eric Auger)
 - Type1 IOMMU always advertises PAGE_SIZE support when smaller mapping
   sizes are available (Eric Auger)
 - Platform fixes for incorrectly using copies of structures rather than
   pointers to structures (James Morse)
 - Rework platform reset modules, fix leak, and add AMD xgbe reset
   module (Eric Auger)
 - Fix vfio_device_get_from_name() return value (Joerg Roedel)
 - No-IOMMU interface (Alex Williamson)
 - Fix potential out of bounds array access in PCI config handling (Dan
   Carpenter)

* tag 'vfio-v4.4-rc1' of git://github.com/awilliam/linux-vfio:
  vfio/pci: make an array larger
  vfio: Include No-IOMMU mode
  vfio: Fix bug in vfio_device_get_from_name()
  VFIO: platform: reset: AMD xgbe reset module
  vfio: platform: reset: calxedaxgmac: fix ioaddr leak
  vfio: platform: add dev_info on device reset
  vfio: platform: use list of registered reset function
  vfio: platform: add compat in vfio_platform_device
  vfio: platform: reset: calxedaxgmac: add reset function registration
  vfio: platform: introduce module_vfio_reset_handler macro
  vfio: platform: add capability to register a reset function
  vfio: platform: introduce vfio-platform-base module
  vfio/platform: store mapped memory in region, instead of an on-stack copy
  vfio/type1: handle case where IOMMU does not support PAGE_SIZE size
  VFIO: platform: clear IRQ_NOAUTOEN when de-assigning the IRQ
  vfio/pci: Use kernel VPD access functions
  vfio: Whitelist PCI bridges
 2015-11-13 17:05:32 -08:00
Dave Airlie
9589fcde27 Merge tag 'topic/drm-fixes-2015-11-11' of git://anongit.freedesktop.org/drm-intel into drm-fixes 
Single fix for uapi.

* tag 'topic/drm-fixes-2015-11-11' of git://anongit.freedesktop.org/drm-intel:
  drm: Use userspace compatible type in fourcc_mod_code macro
 2015-11-13 09:54:31 +10:00
Linus Torvalds
b44a3d2a85 ARM: SoC driver updates for v4.4 
As we've enabled multiplatform kernels on ARM, and greatly done away with
 the contents under arch/arm/mach-*, there's still need for SoC-related
 drivers to go somewhere.
 
 Many of them go in through other driver trees, but we still have
 drivers/soc to hold some of the "doesn't fit anywhere" lowlevel code
 that might be shared between ARM and ARM64 (or just in general makes
 sense to not have under the architecture directory).
 
 This branch contains mostly such code:
 
 - Drivers for qualcomm SoCs for SMEM, SMD and SMD-RPM, used to communicate
   with power management blocks on these SoCs for use by clock, regulator and
   bus frequency drivers.
 - Allwinner Reduced Serial Bus driver, again used to communicate with PMICs.
 - Drivers for ARM's SCPI (System Control Processor). Not to be confused with
   PSCI (Power State Coordination Interface). SCPI is used to communicate with
   the assistant embedded cores doing power management, and we have yet to see
   how many of them will implement this for their hardware vs abstracting in
   other ways (or not at all like in the past).
 - To make confusion between SCPI and PSCI more likely, this release also
   includes an update of PSCI to interface version 1.0.
 - Rockchip support for power domains.
 - A driver to talk to the firmware on Raspberry Pi.
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver updates from Olof Johansson:
 "As we've enabled multiplatform kernels on ARM, and greatly done away
  with the contents under arch/arm/mach-*, there's still need for
  SoC-related drivers to go somewhere.

  Many of them go in through other driver trees, but we still have
  drivers/soc to hold some of the "doesn't fit anywhere" lowlevel code
  that might be shared between ARM and ARM64 (or just in general makes
  sense to not have under the architecture directory).

  This branch contains mostly such code:

   - Drivers for qualcomm SoCs for SMEM, SMD and SMD-RPM, used to
     communicate with power management blocks on these SoCs for use by
     clock, regulator and bus frequency drivers.

   - Allwinner Reduced Serial Bus driver, again used to communicate with
     PMICs.

   - Drivers for ARM's SCPI (System Control Processor).  Not to be
     confused with PSCI (Power State Coordination Interface).  SCPI is
     used to communicate with the assistant embedded cores doing power
     management, and we have yet to see how many of them will implement
     this for their hardware vs abstracting in other ways (or not at all
     like in the past).

   - To make confusion between SCPI and PSCI more likely, this release
     also includes an update of PSCI to interface version 1.0.

   - Rockchip support for power domains.

   - A driver to talk to the firmware on Raspberry Pi"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (57 commits)
  soc: qcom: smd-rpm: Correct size of outgoing message
  bus: sunxi-rsb: Add driver for Allwinner Reduced Serial Bus
  bus: sunxi-rsb: Add Allwinner Reduced Serial Bus (RSB) controller bindings
  ARM: bcm2835: add mutual inclusion protection
  drivers: psci: make PSCI 1.0 functions initialization version dependent
  dt-bindings: Correct paths in Rockchip power domains binding document
  soc: rockchip: power-domain: don't try to print the clock name in error case
  soc: qcom/smem: add HWSPINLOCK dependency
  clk: berlin: add cpuclk
  ARM: berlin: dts: add CLKID_CPU for BG2Q
  ARM: bcm2835: Add the Raspberry Pi firmware driver
  soc: qcom: smem: Move RPM message ram out of smem DT node
  soc: qcom: smd-rpm: Correct the active vs sleep state flagging
  soc: qcom: smd: delete unneeded of_node_put
  firmware: qcom-scm: build for correct architecture level
  soc: qcom: smd: Correct SMEM items for upper channels
  qcom-scm: add missing prototype for qcom_scm_is_available()
  qcom-scm: fix endianess issue in __qcom_scm_is_call_available
  soc: qcom: smd: Reject send of too big packets
  soc: qcom: smd: Handle big endian CPUs
  ...
 2015-11-10 15:00:03 -08:00
Linus Torvalds
d55fc37856 Merge branch 'i2c/for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 
Pull i2c updates from Wolfram Sang:

 - New drivers: UniPhier (with and without FIFO)

 - some drivers got some bigger rework: ismt, designware, img-scb (rcar
   had to be reverted because issues were showing up just lately)

 - ACPI: reworked the device scanning and added support for muxes

... and quite a lot of driver bugfixes and cleanups this time.  All
files touched outside of the i2c realm have proper acks.

* 'i2c/for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (70 commits)
  i2c: rcar: Revert the latest refactoring series
  i2c: pnx: remove superfluous assignment
  MAINTAINERS: i2c: drop i2c-pnx maintainer
  MAINTAINERS: i2c: mark also subdirectories as maintained
  i2c: cadence: enable driver for ARM64
  i2c: i801: Document Intel DNV and Broxton
  i2c: at91: manage unexpected RXRDY flag when starting a transfer
  i2c: pnx: Use setup_timer instead of open coding it
  i2c: add ACPI support for I2C mux ports
  acpi: add acpi_preset_companion() stub
  i2c: pxa: Add support for pxa910/988 & new configuration features
  i2c: au1550: Convert to devm_kzalloc and devm_ioremap_resource
  i2c-dev: Fix I2C_SLAVE ioctl comment
  i2c-dev: Fix typo in ioctl name reference
  i2c: sirf: tune the divider to make i2c bus freq more accurate
  i2c: imx: Use -ENXIO as error in the NACK case
  i2c: i801: Add support for Intel Broxton
  i2c: i801: Add support for Intel DNV
  i2c: mediatek: add i2c resume support
  i2c: imx: implement bus recovery
  ...
 2015-11-10 11:58:25 -08:00
Linus Torvalds
3e82806b97 Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 
Pull drm updates from Dave Airlie:
 "I Was Almost Tempted To Capitalise Every Word, but then I decided I
  couldn't read it myself!

  I've also got one pull request for the sti driver outstanding.  It
  relied on a commit in Greg's tree and I didn't find out in time, that
  commit is in your tree now so I might send that along once this is
  merged.

  I also had the accidental misfortune to have access to a Skylake on my
  desk for a few days, and I've had to encourage Intel to try harder,
  which seems to be happening now.

  Here is the main drm-next pull request for 4.4.

  Highlights:

  New driver:
        vc4 driver for the Rasberry Pi VPU.
        (From Eric Anholt at Broadcom.)

  Core:
        Atomic fbdev support
        Atomic helpers for runtime pm
        dp/aux i2c STATUS_UPDATE handling
        struct_mutex usage cleanups.
        Generic of probing support.

  Documentation:
        Kerneldoc for VGA switcheroo code.
        Rename to gpu instead of drm to reflect scope.

  i915:
        Skylake GuC firmware fixes
        HPD A support
        VBT backlight fallbacks
        Fastboot by default for some systems
        FBC work
        BXT/SKL workarounds
        Skylake deeper sleep state fixes

  amdgpu:
        Enable GPU scheduler by default
        New atombios opcodes
        GPUVM debugging options
        Stoney support.
        Fencing cleanups.

  radeon:
        More efficient CS checking

  nouveau:
        gk20a instance memory handling improvements.
        Improved PGOB detection and GK107 support
        Kepler GDDR5 PLL statbility improvement
        G8x/GT2xx reclock improvements
        new userspace API compatiblity fixes.

  virtio-gpu:
        Add 3D support - qemu 2.5 has it merged for it's gtk backend.

  msm:
        Initial msm88896 (snapdragon 8200)

  exynos:
        HDMI cleanups
        Enable mixer driver byt default
        Add DECON-TV support

  vmwgfx:
        Move to using memremap + fixes.

  rcar-du:
        Add support for R8A7793/4 DU

  armada:
        Remove support for non-component mode
        Improved plane handling
        Power savings while in DPMS off.

  tda998x:
        Remove unused slave encoder support
        Use more HDMI helpers
        Fix EDID read handling

  dwhdmi:
        Interlace video mode support for ipu-v3/dw_hdmi
        Hotplug state fixes
        Audio driver integration

  imx:
        More color formats support.

  tegra:
        Minor fixes/improvements"

[ Merge fixup: remove unused variable 'dev' that had all uses removed in
  commit 4e270f0880: "drm/gem: Drop struct_mutex requirement from
  drm_gem_mmap_obj" ]

* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (764 commits)
  drm/vmwgfx: Relax irq locking somewhat
  drm/vmwgfx: Properly flush cursor updates and page-flips
  drm/i915/skl: disable display side power well support for now
  drm/i915: Extend DSL readout fix to BDW and SKL.
  drm/i915: Do graphics device reset under forcewake
  drm/i915: Skip fence installation for objects with rotated views (v4)
  vga_switcheroo: Drop client power state VGA_SWITCHEROO_INIT
  drm/amdgpu: group together common fence implementation
  drm/amdgpu: remove AMDGPU_FENCE_OWNER_MOVE
  drm/amdgpu: remove now unused fence functions
  drm/amdgpu: fix fence fallback check
  drm/amdgpu: fix stoping the scheduler timeout
  drm/amdgpu: cleanup on error in amdgpu_cs_ioctl()
  drm/i915: Fix locking around GuC firmware load
  drm/amdgpu: update Fiji's Golden setting
  drm/amdgpu: update Fiji's rev id
  drm/amdgpu: extract common code in vi_common_early_init
  drm/amd/scheduler: don't oops on failure to load
  drm/amdgpu: don't oops on failure to load (v2)
  drm/amdgpu: don't VT switch on suspend
  ...
 2015-11-10 09:33:06 -08:00
Linus Torvalds
e6604ecb70 NFS client updates for Linux 4.4 
Highlights include:
 
 Features:
 - RDMA client backchannel from Chuck
 - Support for NFSv4.2 file CLONE using the btrfs ioctl
 
 Bugfixes + cleanups
 - Move socket data receive out of the bottom halves and into a workqueue
 - Refactor NFSv4 error handling so synchronous and asynchronous RPC handles
   errors identically.
 - Fix a panic when blocks or object layouts reads return a bad data length
 - Fix nfsroot so it can handle a 1024 byte long path.
 - Fix bad usage of page offset in bl_read_pagelist
 - Various NFSv4 callback cleanups+fixes
 - Fix GETATTR bitmap verification
 - Support hexadecimal number for sunrpc debug sysctl files
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Merge tag 'nfs-for-4.4-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client updates from Trond Myklebust:
 "Highlights include:

  New features:
   - RDMA client backchannel from Chuck
   - Support for NFSv4.2 file CLONE using the btrfs ioctl

  Bugfixes + cleanups:
   - Move socket data receive out of the bottom halves and into a
     workqueue
   - Refactor NFSv4 error handling so synchronous and asynchronous RPC
     handles errors identically.
   - Fix a panic when blocks or object layouts reads return a bad data
     length
   - Fix nfsroot so it can handle a 1024 byte long path.
   - Fix bad usage of page offset in bl_read_pagelist
   - Various NFSv4 callback cleanups+fixes
   - Fix GETATTR bitmap verification
   - Support hexadecimal number for sunrpc debug sysctl files"

* tag 'nfs-for-4.4-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (53 commits)
  Sunrpc: Supports hexadecimal number for sysctl files of sunrpc debug
  nfs: Fix GETATTR bitmap verification
  nfs: Remove unused xdr page offsets in getacl/setacl arguments
  fs/nfs: remove unnecessary new_valid_dev check
  SUNRPC: fix variable type
  NFS: Enable client side NFSv4.1 backchannel to use other transports
  pNFS/flexfiles: Add support for FF_FLAGS_NO_IO_THRU_MDS
  pNFS/flexfiles: When mirrored, retry failed reads by switching mirrors
  SUNRPC: Remove the TCP-only restriction in bc_svc_process()
  svcrdma: Add backward direction service for RPC/RDMA transport
  xprtrdma: Handle incoming backward direction RPC calls
  xprtrdma: Add support for sending backward direction RPC replies
  xprtrdma: Pre-allocate Work Requests for backchannel
  xprtrdma: Pre-allocate backward rpc_rqst and send/receive buffers
  SUNRPC: Abstract backchannel operations
  xprtrdma: Saving IRQs no longer needed for rb_lock
  xprtrdma: Remove reply tasklet
  xprtrdma: Use workqueue to process RPC/RDMA replies
  xprtrdma: Replace send and receive arrays
  xprtrdma: Refactor reply handler error handling
  ...
 2015-11-09 18:11:22 -08:00
Linus Torvalds
ab9f2faf8f Initial 4.4 merge window submission 
- "Checksum offload support in user space" enablement
 - Misc cxgb4 fixes, add T6 support
 - Misc usnic fixes
 - 32 bit build warning fixes
 - Misc ocrdma fixes
 - Multicast loopback prevention extension
 - Extend the GID cache to store and return attributes of GIDs
 - Misc iSER updates
 - iSER clustering update
 - Network NameSpace support for rdma CM
 - Work Request cleanup series
 - New Memory Registration API
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma

Pull rdma updates from Doug Ledford:
 "This is my initial round of 4.4 merge window patches.  There are a few
  other things I wish to get in for 4.4 that aren't in this pull, as
  this represents what has gone through merge/build/run testing and not
  what is the last few items for which testing is not yet complete.

   - "Checksum offload support in user space" enablement
   - Misc cxgb4 fixes, add T6 support
   - Misc usnic fixes
   - 32 bit build warning fixes
   - Misc ocrdma fixes
   - Multicast loopback prevention extension
   - Extend the GID cache to store and return attributes of GIDs
   - Misc iSER updates
   - iSER clustering update
   - Network NameSpace support for rdma CM
   - Work Request cleanup series
   - New Memory Registration API"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (76 commits)
  IB/core, cma: Make __attribute_const__ declarations sparse-friendly
  IB/core: Remove old fast registration API
  IB/ipath: Remove fast registration from the code
  IB/hfi1: Remove fast registration from the code
  RDMA/nes: Remove old FRWR API
  IB/qib: Remove old FRWR API
  iw_cxgb4: Remove old FRWR API
  RDMA/cxgb3: Remove old FRWR API
  RDMA/ocrdma: Remove old FRWR API
  IB/mlx4: Remove old FRWR API support
  IB/mlx5: Remove old FRWR API support
  IB/srp: Dont allocate a page vector when using fast_reg
  IB/srp: Remove srp_finish_mapping
  IB/srp: Convert to new registration API
  IB/srp: Split srp_map_sg
  RDS/IW: Convert to new memory registration API
  svcrdma: Port to new memory registration API
  xprtrdma: Port to new memory registration API
  iser-target: Port to new memory registration API
  IB/iser: Port to new fast registration API
  ...
 2015-11-07 13:33:07 -08:00
Linus Torvalds
27eb427bdc Merge branch 'for-linus-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs 
Pull btrfs updates from Chris Mason:
 "We have a lot of subvolume quota improvements in here, along with big
  piles of cleanups from Dave Sterba and Anand Jain and others.

  Josef pitched in a batch of allocator fixes based on production use
  here at FB.  We found that mount -o ssd_spread greatly improved our
  performance on hardware raid5/6, but it exposed some CPU bottlenecks
  in the allocator.  These patches make a huge difference"

* 'for-linus-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: (100 commits)
  Btrfs: fix hole punching when using the no-holes feature
  Btrfs: find_free_extent: Do not erroneously skip LOOP_CACHING_WAIT state
  btrfs: Fix a data space underflow warning
  btrfs: qgroup: Fix a rebase bug which will cause qgroup double free
  btrfs: qgroup: Fix a race in delayed_ref which leads to abort trans
  btrfs: clear PF_NOFREEZE in cleaner_kthread()
  btrfs: qgroup: Don't copy extent buffer to do qgroup rescan
  btrfs: add balance filters limits, stripes and usage to supported mask
  btrfs: extend balance filter usage to take minimum and maximum
  btrfs: add balance filter for stripes
  btrfs: extend balance filter limit to take minimum and maximum
  btrfs: fix use after free iterating extrefs
  btrfs: check unsupported filters in balance arguments
  Btrfs: fix regression running delayed references when using qgroups
  Btrfs: fix regression when running delayed references
  Btrfs: don't do extra bitmap search in one bit case
  Btrfs: keep track of largest extent in bitmaps
  Btrfs: don't keep trying to build clusters if we are fragmented
  Btrfs: cut down on loops through the allocator
  Btrfs: don't continue setting up space cache when enospc
  ...
 2015-11-06 17:17:13 -08:00
Linus Torvalds
7130098096 Add support for the CSUM_SEED feature which will allow future 
userspace utilities to change the file system's UUID without rewriting
 all of the file system metadata.
 
 A number of miscellaneous fixes, the most significant of which are in
 the ext4 encryption support.  Anyone wishing to use the encryption
 feature should backport all of the ext4 crypto patches up to 4.4 to
 get fixes to a memory leak and file system corruption bug.
 
 There are also cleanups in ext4's feature test macros and in ext4's
 sysfs support code.
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Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Pull ext4 updates from Ted Ts'o:
 "Add support for the CSUM_SEED feature which will allow future
  userspace utilities to change the file system's UUID without rewriting
  all of the file system metadata.

  A number of miscellaneous fixes, the most significant of which are in
  the ext4 encryption support.  Anyone wishing to use the encryption
  feature should backport all of the ext4 crypto patches up to 4.4 to
  get fixes to a memory leak and file system corruption bug.

  There are also cleanups in ext4's feature test macros and in ext4's
  sysfs support code"

* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (26 commits)
  fs/ext4: remove unnecessary new_valid_dev check
  ext4: fix abs() usage in ext4_mb_check_group_pa
  ext4: do not allow journal_opts for fs w/o journal
  ext4: explicit mount options parsing cleanup
  ext4, jbd2: ensure entering into panic after recording an error in superblock
  [PATCH] fix calculation of meta_bg descriptor backups
  ext4: fix potential use after free in __ext4_journal_stop
  jbd2: fix checkpoint list cleanup
  ext4: fix xfstest generic/269 double revoked buffer bug with bigalloc
  ext4: make the bitmap read routines return real error codes
  jbd2: clean up feature test macros with predicate functions
  ext4: clean up feature test macros with predicate functions
  ext4: call out CRC and corruption errors with specific error codes
  ext4: store checksum seed in superblock
  ext4: reserve code points for the project quota feature
  ext4: promote ext4 over ext2 in the default probe order
  jbd2: gate checksum calculations on crc driver presence, not sb flags
  ext4: use private version of page_zero_new_buffers() for data=journal mode
  ext4 crypto: fix bugs in ext4_encrypted_zeroout()
  ext4 crypto: replace some BUG_ON()'s with error checks
  ...
 2015-11-06 16:23:27 -08:00
Linus Torvalds
3e069adabc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 
Pull input updates from Dmitry Torokhov:
 "Items of note:

   - evdev users can now limit or mask the kind of events they will
     receive.  This will allow applications such as power manager or
     network manager to only be woken when user presses special keys
     such as KEY_POWER or KEY_WIFI and not be bothered with ordinary
     key presses coming from keyboard

   - support for FocalTech FT6236 touchscreen controller

   - support for ROHM BU21023/24 touchscreen controller

   - edt-ft5x06 touchscreen driver got a face lift and can now be used
     with FT5506

   - support for Google Fiber TV Box remote controls

   - improvements in xpad driver (with more to come)

   - several parport-based drivers have been switched to the new device
     model

   - other miscellaneous driver improvements"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (70 commits)
  HID: hid-gfrm: avoid warning for input_configured API change
  HID: hid-input: allow input_configured callback return errors
  Input: evdev - fix bug in checking duplicate clock change request
  Input: add userio module
  Input: evdev - add event-mask API
  Input: snvs_pwrkey - remove duplicated semicolon
  HID: hid-gfrm: Google Fiber TV Box remote controls
  Input: e3x0-button - update Kconfig description
  Input: tegra-kbc - drop use of IRQF_NO_SUSPEND flag
  Input: tegra-kbc - enable support for the standard "wakeup-source" property
  Input: xen - check return value of xenbus_printf
  Input: hp_sdc_rtc - fix y2038 problem in proc_show
  Input: nomadik-ske-keypad - fix a trivial typo
  Input: xpad - fix clash of presence handling with LED setting
  Input: edt-ft5x06 - work around FT5506 firmware bug
  Input: edt-ft5x06 - add support for FT5506
  Input: edt-ft5x06 - add support for different max support points
  Input: edt-ft5x06 - use max support points to determine how much to read
  Input: rotary-encoder - add support for quarter-period mode
  Input: rotary-encoder - use of_property_read_bool
  ...
 2015-11-06 11:57:41 -08:00
Linus Torvalds
02f0d3f758 MTD updates for 4.4-rc1: 
Core
 
   * WARN (in some cases) when a struct mtd_info is registered multiple times;
     in the past this was "supported", but it's still error prone for future
     development. There's only one ugly case of this left in the tree (that
     we're aware of) and the owners are aware of the problems there.
 
   * fix potential deadlock in the blkdev removal path
     NOTE: the (potential) deadlock was introduced in a for-stable patch. This
     one is also marked for -stable.
 
   * ioctl(BLKPG) compat_ioctl support; resolves issues with 32-bit user space
     vs. 64-bit kernel space
 
   * Set MTD parent device correctly throughout the tree, so the tree structure
     appears correctly in sysfs; many drivers were missing this (soft)
     requirement
 
   * Move device tree partitions (ofpart) into a dedicated 'partitions' subnode;
     this helps to disambiguate whether a node is a partition or some other
     auxiliary data
 
   * Improve error handling for partitioning failures
 
  NAND
 
   * General: Increase timeout period, for corner-case systems with
     less-than-accurate jiffies
 
   * Fix OF-based autoloading of several NAND drivers when built as modules
 
   * pxa3xx_nand:
     - Rework timing configuration to be more dynamic
     - Refactor PM support
 
   * brcmnand: prepare for NorthStar 2 support (ARM64, 16-bit NAND chips)
 
   * sunxi_nand: refactoring and a few bug fixes
 
   * vf610: new NAND driver
 
   * FSMC: add SW BCH support; support common NAND DT bindings
 
   * lpc32xx_slc: refactor and improve timing calculations logic
 
   * denali: support for rev 5.1
 
  SPI NOR
 
   * Layering improvements
 
   * Added Winbond lock/unlock support
 
   * Added mtd_is_locked() (i.e., ioctl(MEMISLOCKED)) support
 
   * Increase full-chip-erase timeout linearly with flash size
 
   * fsl-quadspi: fix compile for non-ARM architectures
 
   * New flash support
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Merge tag 'for-linus-20151106' of git://git.infradead.org/linux-mtd

Pull MTD updates from Brian Norris:
 "Core:

   - WARN (in some cases) when a struct mtd_info is registered multiple
     times; in the past this was "supported", but it's still error prone
     for future development.  There's only one ugly case of this left in
     the tree (that we're aware of) and the owners are aware of the
     problems there.

   - fix potential deadlock in the blkdev removal path NOTE: the
     (potential) deadlock was introduced in a for-stable patch.  This
     one is also marked for -stable.

   - ioctl(BLKPG) compat_ioctl support; resolves issues with 32-bit user
     space vs 64-bit kernel space

   - Set MTD parent device correctly throughout the tree, so the tree
     structure appears correctly in sysfs; many drivers were missing
     this (soft) requirement

   - Move device tree partitions (ofpart) into a dedicated 'partitions'
     subnode; this helps to disambiguate whether a node is a partition
     or some other auxiliary data

   - Improve error handling for partitioning failures

  NAND:

   - General: Increase timeout period, for corner-case systems with
     less-than-accurate jiffies

   - Fix OF-based autoloading of several NAND drivers when built as
     modules

   - pxa3xx_nand:
      - Rework timing configuration to be more dynamic
      - Refactor PM support

   - brcmnand: prepare for NorthStar 2 support (ARM64, 16-bit NAND
     chips)

   - sunxi_nand: refactoring and a few bug fixes

   - vf610: new NAND driver

   - FSMC: add SW BCH support; support common NAND DT bindings

   - lpc32xx_slc: refactor and improve timing calculations logic

   - denali: support for rev 5.1

  SPI NOR:

   - Layering improvements

   - Added Winbond lock/unlock support

   - Added mtd_is_locked() (i.e., ioctl(MEMISLOCKED)) support

   - Increase full-chip-erase timeout linearly with flash size

   - fsl-quadspi: fix compile for non-ARM architectures

   - New flash support"

* tag 'for-linus-20151106' of git://git.infradead.org/linux-mtd: (169 commits)
  mtd: don't WARN about overloaded users of mtd->reboot_notifier.notifier_call
  mtd: nand: sunxi: avoid retrieving data before ECC pass
  mtd: nand: sunxi: fix sunxi_nfc_hw_ecc_read/write_chunk()
  mtd: blkdevs: fix potential deadlock + lockdep warnings
  mtd: ofpart: move ofpart partitions to a dedicated dt node
  doc: dt: mtd: support partitions in a special 'partitions' subnode
  mtd: brcmnand: Force 8bit mode before doing nand_scan_ident()
  mtd: brcmnand: factor out CFG and CFG_EXT bitfields
  mtd: mtdpart: Do not fail mtd probe when parsing partitions fails
  mtd: fsl-quadspi: fix macro collision problems with READ/WRITE
  mtd: warn when registering the same master many times
  mtd: fixup corner case error handling in mtd_device_parse_register()
  mtd: tests: Replace timeval with ktime_t
  mtd: fsmc_nand: Add BCH4 SW ECC support for SPEAr600
  mtd: nand: vf610_nfc: use nand_check_erased_ecc_chunk() helper
  mtd: nand: increase ready wait timeout and report timeouts
  mtd: docg3: off by one in doc_register_sysfs()
  mtd: pxa3xx_nand: clean up the pxa3xx timings
  mtd: pxa3xx_nand: rework flash detection and timing setup
  mtd: pxa3xx_nand: add helpers to setup the timings
  ...
 2015-11-06 11:50:24 -08:00
Linus Torvalds
3c87b79188 PCI changes for the v4.4 merge window: 
Resource management
     Add support for Enhanced Allocation devices (Sean O. Stalley)
     Add Enhanced Allocation register entries (Sean O. Stalley)
     Handle IORESOURCE_PCI_FIXED when sizing resources (David Daney)
     Handle IORESOURCE_PCI_FIXED when assigning resources (David Daney)
     Handle Enhanced Allocation capability for SR-IOV devices (David Daney)
     Clear IORESOURCE_UNSET when reverting to firmware-assigned address (Bjorn Helgaas)
     Make Enhanced Allocation bitmasks more obvious (Bjorn Helgaas)
     Expand Enhanced Allocation BAR output (Bjorn Helgaas)
     Add of_pci_check_probe_only to parse "linux,pci-probe-only" (Marc Zyngier)
     Fix lookup of linux,pci-probe-only property (Marc Zyngier)
     Add sparc mem64 resource parsing for root bus (Yinghai Lu)
 
   PCI device hotplug
     pciehp: Queue power work requests in dedicated function (Guenter Roeck)
 
   Driver binding
     Add builtin_pci_driver() to avoid registration boilerplate (Paul Gortmaker)
 
   Virtualization
     Set SR-IOV NumVFs to zero after enumeration (Alexander Duyck)
     Remove redundant validation of SR-IOV offset/stride registers (Alexander Duyck)
     Remove VFs in reverse order if virtfn_add() fails (Alexander Duyck)
     Reorder pcibios_sriov_disable() (Alexander Duyck)
     Wait 1 second between disabling VFs and clearing NumVFs (Alexander Duyck)
     Fix sriov_enable() error path for pcibios_enable_sriov() failures (Alexander Duyck)
     Enable SR-IOV ARI Capable Hierarchy before reading TotalVFs (Ben Shelton)
     Don't try to restore VF BARs (Wei Yang)
 
   MSI
     Don't alloc pcibios-irq when MSI is enabled (Joerg Roedel)
     Add msi_controller setup_irqs() method for special multivector setup (Lucas Stach)
     Export all remapped MSIs to sysfs attributes (Romain Bezut)
     Disable MSI on SiS 761 (Ondrej Zary)
 
   AER
     Clear error status registers during enumeration and restore (Taku Izumi)
 
   Generic host bridge driver
     Fix lookup of linux,pci-probe-only property (Marc Zyngier)
     Allow multiple hosts with different map_bus() methods (David Daney)
     Pass starting bus number to pci_scan_root_bus() (David Daney)
     Fix address window calculation for non-zero starting bus (David Daney)
 
   Altera host bridge driver
     Add msi.h to ARM Kbuild (Ley Foon Tan)
     Add Altera PCIe host controller driver (Ley Foon Tan)
     Add Altera PCIe MSI driver (Ley Foon Tan)
 
   APM X-Gene host bridge driver
     Remove msi_controller assignment (Duc Dang)
 
   Broadcom iProc host bridge driver
     Fix header comment "Corporation" misspelling (Florian Fainelli)
     Fix code comment to match code (Ray Jui)
     Remove unused struct iproc_pcie.irqs[] (Ray Jui)
     Call pci_fixup_irqs() for ARM64 as well as ARM (Ray Jui)
     Fix PCIe reset logic (Ray Jui)
     Improve link detection logic (Ray Jui)
     Update PCIe device tree bindings (Ray Jui)
     Add outbound mapping support (Ray Jui)
 
   Freescale i.MX6 host bridge driver
     Return real error code from imx6_add_pcie_port() (Fabio Estevam)
     Add PCIE_PHY_RX_ASIC_OUT_VALID definition (Fabio Estevam)
 
   Freescale Layerscape host bridge driver
     Remove ls_pcie_establish_link() (Minghuan Lian)
     Ignore PCIe controllers in Endpoint mode (Minghuan Lian)
     Factor out SCFG related function (Minghuan Lian)
     Update ls_add_pcie_port() (Minghuan Lian)
     Remove unused fields from struct ls_pcie (Minghuan Lian)
     Add support for LS1043a and LS2080a (Minghuan Lian)
     Add ls_pcie_msi_host_init() (Minghuan Lian)
 
   HiSilicon host bridge driver
     Add HiSilicon SoC Hip05 PCIe driver (Zhou Wang)
 
   Marvell MVEBU host bridge driver
     Return zero for reserved or unimplemented config space (Russell King)
     Use exact config access size; don't read/modify/write (Russell King)
     Use of_get_available_child_count() (Russell King)
     Use for_each_available_child_of_node() to walk child nodes (Russell King)
     Report full node name when reporting a DT error (Russell King)
     Use port->name rather than "PCIe%d.%d" (Russell King)
     Move port parsing and resource claiming to  separate function (Russell King)
     Fix memory leaks and refcount leaks (Russell King)
     Split port parsing and resource claiming from  port setup (Russell King)
     Use gpio_set_value_cansleep() (Russell King)
     Use devm_kcalloc() to allocate an array (Russell King)
     Use gpio_desc to carry around gpio (Russell King)
     Improve clock/reset handling (Russell King)
     Add PCI Express root complex capability block (Russell King)
     Remove code restricting accesses to slot 0 (Russell King)
 
   NVIDIA Tegra host bridge driver
     Wrap static pgprot_t initializer with __pgprot() (Ard Biesheuvel)
 
   Renesas R-Car host bridge driver
     Build pci-rcar-gen2.c only on ARM (Geert Uytterhoeven)
     Build pcie-rcar.c only on ARM (Geert Uytterhoeven)
     Make PCI aware of the I/O resources (Phil Edworthy)
     Remove dependency on ARM-specific struct hw_pci (Phil Edworthy)
     Set root bus nr to that provided in DT (Phil Edworthy)
     Fix I/O offset for multiple host bridges (Phil Edworthy)
 
   ST Microelectronics SPEAr13xx host bridge driver
     Fix dw_pcie_cfg_read/write() usage (Gabriele Paoloni)
 
   Synopsys DesignWare host bridge driver
     Make "clocks" and "clock-names" optional DT properties (Bhupesh Sharma)
     Use exact access size in dw_pcie_cfg_read() (Gabriele Paoloni)
     Simplify dw_pcie_cfg_read/write() interfaces (Gabriele Paoloni)
     Require config accesses to be naturally aligned (Gabriele Paoloni)
     Make "num-lanes" an optional DT property (Gabriele Paoloni)
     Move calculation of bus addresses to DRA7xx (Gabriele Paoloni)
     Replace ARM pci_sys_data->align_resource with global function pointer (Gabriele Paoloni)
     Factor out MSI msg setup (Lucas Stach)
     Implement multivector MSI IRQ setup (Lucas Stach)
     Make get_msi_addr() return phys_addr_t, not u32 (Lucas Stach)
     Set up high part of MSI target address (Lucas Stach)
     Fix PORT_LOGIC_LINK_WIDTH_MASK (Zhou Wang)
     Revert "PCI: designware: Program ATU with untranslated address" (Zhou Wang)
     Use of_pci_get_host_bridge_resources() to parse DT (Zhou Wang)
     Make driver arch-agnostic (Zhou Wang)
 
   Miscellaneous
     Make x86 pci_subsys_init() static (Alexander Kuleshov)
     Turn off Request Attributes to avoid Chelsio T5 Completion erratum (Hariprasad Shenai)
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Merge tag 'pci-v4.4-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:
 "Resource management:
   - Add support for Enhanced Allocation devices (Sean O. Stalley)
   - Add Enhanced Allocation register entries (Sean O. Stalley)
   - Handle IORESOURCE_PCI_FIXED when sizing resources (David Daney)
   - Handle IORESOURCE_PCI_FIXED when assigning resources (David Daney)
   - Handle Enhanced Allocation capability for SR-IOV devices (David Daney)
   - Clear IORESOURCE_UNSET when reverting to firmware-assigned address (Bjorn Helgaas)
   - Make Enhanced Allocation bitmasks more obvious (Bjorn Helgaas)
   - Expand Enhanced Allocation BAR output (Bjorn Helgaas)
   - Add of_pci_check_probe_only to parse "linux,pci-probe-only" (Marc Zyngier)
   - Fix lookup of linux,pci-probe-only property (Marc Zyngier)
   - Add sparc mem64 resource parsing for root bus (Yinghai Lu)

  PCI device hotplug:
   - pciehp: Queue power work requests in dedicated function (Guenter Roeck)

  Driver binding:
   - Add builtin_pci_driver() to avoid registration boilerplate (Paul Gortmaker)

  Virtualization:
   - Set SR-IOV NumVFs to zero after enumeration (Alexander Duyck)
   - Remove redundant validation of SR-IOV offset/stride registers (Alexander Duyck)
   - Remove VFs in reverse order if virtfn_add() fails (Alexander Duyck)
   - Reorder pcibios_sriov_disable() (Alexander Duyck)
   - Wait 1 second between disabling VFs and clearing NumVFs (Alexander Duyck)
   - Fix sriov_enable() error path for pcibios_enable_sriov() failures (Alexander Duyck)
   - Enable SR-IOV ARI Capable Hierarchy before reading TotalVFs (Ben Shelton)
   - Don't try to restore VF BARs (Wei Yang)

  MSI:
   - Don't alloc pcibios-irq when MSI is enabled (Joerg Roedel)
   - Add msi_controller setup_irqs() method for special multivector setup (Lucas Stach)
   - Export all remapped MSIs to sysfs attributes (Romain Bezut)
   - Disable MSI on SiS 761 (Ondrej Zary)

  AER:
   - Clear error status registers during enumeration and restore (Taku Izumi)

  Generic host bridge driver:
   - Fix lookup of linux,pci-probe-only property (Marc Zyngier)
   - Allow multiple hosts with different map_bus() methods (David Daney)
   - Pass starting bus number to pci_scan_root_bus() (David Daney)
   - Fix address window calculation for non-zero starting bus (David Daney)

  Altera host bridge driver:
   - Add msi.h to ARM Kbuild (Ley Foon Tan)
   - Add Altera PCIe host controller driver (Ley Foon Tan)
   - Add Altera PCIe MSI driver (Ley Foon Tan)

  APM X-Gene host bridge driver:
   - Remove msi_controller assignment (Duc Dang)

  Broadcom iProc host bridge driver:
   - Fix header comment "Corporation" misspelling (Florian Fainelli)
   - Fix code comment to match code (Ray Jui)
   - Remove unused struct iproc_pcie.irqs[] (Ray Jui)
   - Call pci_fixup_irqs() for ARM64 as well as ARM (Ray Jui)
   - Fix PCIe reset logic (Ray Jui)
   - Improve link detection logic (Ray Jui)
   - Update PCIe device tree bindings (Ray Jui)
   - Add outbound mapping support (Ray Jui)

  Freescale i.MX6 host bridge driver:
   - Return real error code from imx6_add_pcie_port() (Fabio Estevam)
   - Add PCIE_PHY_RX_ASIC_OUT_VALID definition (Fabio Estevam)

  Freescale Layerscape host bridge driver:
   - Remove ls_pcie_establish_link() (Minghuan Lian)
   - Ignore PCIe controllers in Endpoint mode (Minghuan Lian)
   - Factor out SCFG related function (Minghuan Lian)
   - Update ls_add_pcie_port() (Minghuan Lian)
   - Remove unused fields from struct ls_pcie (Minghuan Lian)
   - Add support for LS1043a and LS2080a (Minghuan Lian)
   - Add ls_pcie_msi_host_init() (Minghuan Lian)

  HiSilicon host bridge driver:
   - Add HiSilicon SoC Hip05 PCIe driver (Zhou Wang)

  Marvell MVEBU host bridge driver:
   - Return zero for reserved or unimplemented config space (Russell King)
   - Use exact config access size; don't read/modify/write (Russell King)
   - Use of_get_available_child_count() (Russell King)
   - Use for_each_available_child_of_node() to walk child nodes (Russell King)
   - Report full node name when reporting a DT error (Russell King)
   - Use port->name rather than "PCIe%d.%d" (Russell King)
   - Move port parsing and resource claiming to  separate function (Russell King)
   - Fix memory leaks and refcount leaks (Russell King)
   - Split port parsing and resource claiming from  port setup (Russell King)
   - Use gpio_set_value_cansleep() (Russell King)
   - Use devm_kcalloc() to allocate an array (Russell King)
   - Use gpio_desc to carry around gpio (Russell King)
   - Improve clock/reset handling (Russell King)
   - Add PCI Express root complex capability block (Russell King)
   - Remove code restricting accesses to slot 0 (Russell King)

  NVIDIA Tegra host bridge driver:
   - Wrap static pgprot_t initializer with __pgprot() (Ard Biesheuvel)

  Renesas R-Car host bridge driver:
   - Build pci-rcar-gen2.c only on ARM (Geert Uytterhoeven)
   - Build pcie-rcar.c only on ARM (Geert Uytterhoeven)
   - Make PCI aware of the I/O resources (Phil Edworthy)
   - Remove dependency on ARM-specific struct hw_pci (Phil Edworthy)
   - Set root bus nr to that provided in DT (Phil Edworthy)
   - Fix I/O offset for multiple host bridges (Phil Edworthy)

  ST Microelectronics SPEAr13xx host bridge driver:
   - Fix dw_pcie_cfg_read/write() usage (Gabriele Paoloni)

  Synopsys DesignWare host bridge driver:
   - Make "clocks" and "clock-names" optional DT properties (Bhupesh Sharma)
   - Use exact access size in dw_pcie_cfg_read() (Gabriele Paoloni)
   - Simplify dw_pcie_cfg_read/write() interfaces (Gabriele Paoloni)
   - Require config accesses to be naturally aligned (Gabriele Paoloni)
   - Make "num-lanes" an optional DT property (Gabriele Paoloni)
   - Move calculation of bus addresses to DRA7xx (Gabriele Paoloni)
   - Replace ARM pci_sys_data->align_resource with global function pointer (Gabriele Paoloni)
   - Factor out MSI msg setup (Lucas Stach)
   - Implement multivector MSI IRQ setup (Lucas Stach)
   - Make get_msi_addr() return phys_addr_t, not u32 (Lucas Stach)
   - Set up high part of MSI target address (Lucas Stach)
   - Fix PORT_LOGIC_LINK_WIDTH_MASK (Zhou Wang)
   - Revert "PCI: designware: Program ATU with untranslated address" (Zhou Wang)
   - Use of_pci_get_host_bridge_resources() to parse DT (Zhou Wang)
   - Make driver arch-agnostic (Zhou Wang)

  Miscellaneous:
   - Make x86 pci_subsys_init() static (Alexander Kuleshov)
   - Turn off Request Attributes to avoid Chelsio T5 Completion erratum (Hariprasad Shenai)"

* tag 'pci-v4.4-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (94 commits)
  PCI: altera: Add Altera PCIe MSI driver
  PCI: hisi: Add HiSilicon SoC Hip05 PCIe driver
  PCI: layerscape: Add ls_pcie_msi_host_init()
  PCI: layerscape: Add support for LS1043a and LS2080a
  PCI: layerscape: Remove unused fields from struct ls_pcie
  PCI: layerscape: Update ls_add_pcie_port()
  PCI: layerscape: Factor out SCFG related function
  PCI: layerscape: Ignore PCIe controllers in Endpoint mode
  PCI: layerscape: Remove ls_pcie_establish_link()
  PCI: designware: Make "clocks" and "clock-names" optional DT properties
  PCI: designware: Make driver arch-agnostic
  ARM/PCI: Replace pci_sys_data->align_resource with global function pointer
  PCI: designware: Use of_pci_get_host_bridge_resources() to parse DT
  Revert "PCI: designware: Program ATU with untranslated address"
  PCI: designware: Move calculation of bus addresses to DRA7xx
  PCI: designware: Make "num-lanes" an optional DT property
  PCI: designware: Require config accesses to be naturally aligned
  PCI: designware: Simplify dw_pcie_cfg_read/write() interfaces
  PCI: designware: Use exact access size in dw_pcie_cfg_read()
  PCI: spear: Fix dw_pcie_cfg_read/write() usage
  ...
 2015-11-06 11:29:53 -08:00
Linus Torvalds
0280d1a099 sound updates for 4.4-rc1 
Here is the first batch of updates for sound system on 4.4-rc1.
 Again at this time, the update looks fairly calm; no big changes in
 either ALSA core or ASoC infrastructures, rather all small cleanups,
 in addition to the new stuff as usual.
 
 The biggest changes are about Firewire sound devices.  It gained lots
 of new device support, and MIDI functionality.  Also there are updates
 for a few still working-in-progress stuff (topology API and ASoC
 skylake), too.  But overall, this update should give no big surprise.
 
 Some highlight is below:
 
 Core:
  - A few more Kconfig items for tinification; it's marked as EXPERT,
    so normal user should't be bothered :)
  - Refactoring with a new PCM hw_constraint helper
  - Removal of unused transfer_ack_{begin,end} PCM callbacks
 
 Firewire:
  - Restructuring of code subtree, lots of refactoring
  - Support AMDTP variants
  - New driver for Digidesign 002/003 family
  - Adds support for TASCAM FireOne to ALSA OXFW driver
  - Add MIDI support to TASCAM and Digi00x devices
 
 HD-Audio:
  - Automated modalias generation for codec drivers, finally
  - Improvement on heuristics for setting mixer name
  - A few fixes for longstanding bugs on Creative CA0132 cards
  - Addition of audio rate callback with i915 communication
  - Fix suspend issue on recent Dell XPS
  - Intel Lewisburg controller support
 
 ASoC:
  - Updates to the topology userspace interface
  - Big updates to the Renesas support (rcar)
  - More updates for supporting Intel Sky Lake systems
  - New drivers for Asahi Kasei Microdevices AK4613, Allwinnner A10,
    Cirrus Logic WM8998, Dialog DA7219, Nuvoton NAU8825, Rockchip
    S/PDIF, and Atmel class D amplifier
 
 USB-Audio:
  - A fix for newer Roland MIDI devices
  - Quirks and workarounds for Zoom R16/24 device
 
 Misc:
  - A few fixes for some old Cirrus CS46xx PCI sound boards
  - Yet another fixes for some old ESS Maestro3 PCI sound boards
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Merge tag 'sound-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "Here is the first batch of updates for sound system on 4.4-rc1.

  Again at this time, the update looks fairly calm; no big changes in
  either ALSA core or ASoC infrastructures, rather all small cleanups,
  in addition to the new stuff as usual.

  The biggest changes are about Firewire sound devices.  It gained lots
  of new device support, and MIDI functionality.  Also there are updates
  for a few still working-in-progress stuff (topology API and ASoC
  skylake), too.  But overall, this update should give no big surprise.

  Some highlights are below:

  Core:
   - A few more Kconfig items for tinification; it's marked as EXPERT,
     so normal user should't be bothered :)
   - Refactoring with a new PCM hw_constraint helper
   - Removal of unused transfer_ack_{begin,end} PCM callbacks

  Firewire:
   - Restructuring of code subtree, lots of refactoring
   - Support AMDTP variants
   - New driver for Digidesign 002/003 family
   - Adds support for TASCAM FireOne to ALSA OXFW driver
   - Add MIDI support to TASCAM and Digi00x devices

  HD-Audio:
   - Automated modalias generation for codec drivers, finally
   - Improvement on heuristics for setting mixer name
   - A few fixes for longstanding bugs on Creative CA0132 cards
   - Addition of audio rate callback with i915 communication
   - Fix suspend issue on recent Dell XPS
   - Intel Lewisburg controller support

  ASoC:
   - Updates to the topology userspace interface
   - Big updates to the Renesas support (rcar)
   - More updates for supporting Intel Sky Lake systems
   - New drivers for Asahi Kasei Microdevices AK4613, Allwinnner A10,
     Cirrus Logic WM8998, Dialog DA7219, Nuvoton NAU8825, Rockchip
     S/PDIF, and Atmel class D amplifier

  USB-Audio:
   - A fix for newer Roland MIDI devices
   - Quirks and workarounds for Zoom R16/24 device

  Misc:
   - A few fixes for some old Cirrus CS46xx PCI sound boards
   - Yet another fixes for some old ESS Maestro3 PCI sound boards"

* tag 'sound-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (330 commits)
  ALSA: hda - Add Intel Lewisburg device IDs Audio
  ALSA: hda - Apply pin fixup for HP ProBook 6550b
  ALSA: hda - Fix lost 4k BDL boundary workaround
  ALSA: maestro3: Fix Allegro mute until master volume/mute is touched
  ALSA: maestro3: Enable docking support for Dell Latitude C810
  ALSA: firewire-digi00x: add another rawmidi character device for MIDI control ports
  ALSA: firewire-digi00x: add MIDI operations for MIDI control port
  ALSA: firewire-digi00x: rename identifiers of MIDI operation for physical ports
  ALSA: cs46xx: Fix suspend for all channels
  ALSA: cs46xx: Fix Duplicate front for CS4294 and CS4298 codecs
  ALSA: DocBook: Add soc-ops.c and soc-compress.c
  ALSA: hda - Add / fix kernel doc comments
  ALSA: Constify ratden/ratnum constraints
  ALSA: hda - Disable 64bit address for Creative HDA controllers
  ALSA: hda/realtek - Dell XPS one ALC3260 speaker no sound after resume back
  ALSA: hda/ca0132 - Convert leftover pr_info() and pr_err()
  ASoC: fsl: Use #ifdef instead of #if for CONFIG_PM_SLEEP
  ASoC: rt5645: Sort the order for register bit defines
  ASoC: dwc: add check for master/slave format
  ASoC: rt5645: Add the HWEQ for the speaker output
  ...
 2015-11-06 11:04:07 -08:00
Linus Torvalds
2e3078af2c Merge branch 'akpm' (patches from Andrew) 
Merge patch-bomb from Andrew Morton:

 - inotify tweaks

 - some ocfs2 updates (many more are awaiting review)

 - various misc bits

 - kernel/watchdog.c updates

 - Some of mm.  I have a huge number of MM patches this time and quite a
   lot of it is quite difficult and much will be held over to next time.

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (162 commits)
  selftests: vm: add tests for lock on fault
  mm: mlock: add mlock flags to enable VM_LOCKONFAULT usage
  mm: introduce VM_LOCKONFAULT
  mm: mlock: add new mlock system call
  mm: mlock: refactor mlock, munlock, and munlockall code
  kasan: always taint kernel on report
  mm, slub, kasan: enable user tracking by default with KASAN=y
  kasan: use IS_ALIGNED in memory_is_poisoned_8()
  kasan: Fix a type conversion error
  lib: test_kasan: add some testcases
  kasan: update reference to kasan prototype repo
  kasan: move KASAN_SANITIZE in arch/x86/boot/Makefile
  kasan: various fixes in documentation
  kasan: update log messages
  kasan: accurately determine the type of the bad access
  kasan: update reported bug types for kernel memory accesses
  kasan: update reported bug types for not user nor kernel memory accesses
  mm/kasan: prevent deadlock in kasan reporting
  mm/kasan: don't use kasan shadow pointer in generic functions
  mm/kasan: MODULE_VADDR is not available on all archs
  ...
 2015-11-05 23:10:54 -08:00
Eric B Munson
b0f205c2a3 mm: mlock: add mlock flags to enable VM_LOCKONFAULT usage 
The previous patch introduced a flag that specified pages in a VMA should
be placed on the unevictable LRU, but they should not be made present when
the area is created.  This patch adds the ability to set this state via
the new mlock system calls.

We add MLOCK_ONFAULT for mlock2 and MCL_ONFAULT for mlockall.
MLOCK_ONFAULT will set the VM_LOCKONFAULT modifier for VM_LOCKED.
MCL_ONFAULT should be used as a modifier to the two other mlockall flags.
When used with MCL_CURRENT, all current mappings will be marked with
VM_LOCKED | VM_LOCKONFAULT.  When used with MCL_FUTURE, the mm->def_flags
will be marked with VM_LOCKED | VM_LOCKONFAULT.  When used with both
MCL_CURRENT and MCL_FUTURE, all current mappings and mm->def_flags will be
marked with VM_LOCKED | VM_LOCKONFAULT.

Prior to this patch, mlockall() will unconditionally clear the
mm->def_flags any time it is called without MCL_FUTURE.  This behavior is
maintained after adding MCL_ONFAULT.  If a call to mlockall(MCL_FUTURE) is
followed by mlockall(MCL_CURRENT), the mm->def_flags will be cleared and
new VMAs will be unlocked.  This remains true with or without MCL_ONFAULT
in either mlockall() invocation.

munlock() will unconditionally clear both vma flags.  munlockall()
unconditionally clears for VMA flags on all VMAs and in the mm->def_flags
field.

Signed-off-by: Eric B Munson <emunson@akamai.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Shuah Khan <shuahkh@osg.samsung.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2015-11-05 19:34:48 -08:00
Eric B Munson
a8ca5d0ecb mm: mlock: add new mlock system call 
With the refactored mlock code, introduce a new system call for mlock.
The new call will allow the user to specify what lock states are being
added.  mlock2 is trivial at the moment, but a follow on patch will add a
new mlock state making it useful.

Signed-off-by: Eric B Munson <emunson@akamai.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2015-11-05 19:34:48 -08:00
Linus Torvalds
933425fb00 s390: A bunch of fixes and optimizations for interrupt and time 
handling.
 
 PPC: Mostly bug fixes.
 
 ARM: No big features, but many small fixes and prerequisites including:
 - a number of fixes for the arch-timer
 - introducing proper level-triggered semantics for the arch-timers
 - a series of patches to synchronously halt a guest (prerequisite for
   IRQ forwarding)
 - some tracepoint improvements
 - a tweak for the EL2 panic handlers
 - some more VGIC cleanups getting rid of redundant state
 
 x86: quite a few changes:
 
 - support for VT-d posted interrupts (i.e. PCI devices can inject
 interrupts directly into vCPUs).  This introduces a new component (in
 virt/lib/) that connects VFIO and KVM together.  The same infrastructure
 will be used for ARM interrupt forwarding as well.
 
 - more Hyper-V features, though the main one Hyper-V synthetic interrupt
 controller will have to wait for 4.5.  These will let KVM expose Hyper-V
 devices.
 
 - nested virtualization now supports VPID (same as PCID but for vCPUs)
 which makes it quite a bit faster
 
 - for future hardware that supports NVDIMM, there is support for clflushopt,
 clwb, pcommit
 
 - support for "split irqchip", i.e. LAPIC in kernel + IOAPIC/PIC/PIT in
 userspace, which reduces the attack surface of the hypervisor
 
 - obligatory smattering of SMM fixes
 
 - on the guest side, stable scheduler clock support was rewritten to not
 require help from the hypervisor.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM updates from Paolo Bonzini:
 "First batch of KVM changes for 4.4.

  s390:
     A bunch of fixes and optimizations for interrupt and time handling.

  PPC:
     Mostly bug fixes.

  ARM:
     No big features, but many small fixes and prerequisites including:

      - a number of fixes for the arch-timer

      - introducing proper level-triggered semantics for the arch-timers

      - a series of patches to synchronously halt a guest (prerequisite
        for IRQ forwarding)

      - some tracepoint improvements

      - a tweak for the EL2 panic handlers

      - some more VGIC cleanups getting rid of redundant state

  x86:
     Quite a few changes:

      - support for VT-d posted interrupts (i.e. PCI devices can inject
        interrupts directly into vCPUs).  This introduces a new
        component (in virt/lib/) that connects VFIO and KVM together.
        The same infrastructure will be used for ARM interrupt
        forwarding as well.

      - more Hyper-V features, though the main one Hyper-V synthetic
        interrupt controller will have to wait for 4.5.  These will let
        KVM expose Hyper-V devices.

      - nested virtualization now supports VPID (same as PCID but for
        vCPUs) which makes it quite a bit faster

      - for future hardware that supports NVDIMM, there is support for
        clflushopt, clwb, pcommit

      - support for "split irqchip", i.e.  LAPIC in kernel +
        IOAPIC/PIC/PIT in userspace, which reduces the attack surface of
        the hypervisor

      - obligatory smattering of SMM fixes

      - on the guest side, stable scheduler clock support was rewritten
        to not require help from the hypervisor"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (123 commits)
  KVM: VMX: Fix commit which broke PML
  KVM: x86: obey KVM_X86_QUIRK_CD_NW_CLEARED in kvm_set_cr0()
  KVM: x86: allow RSM from 64-bit mode
  KVM: VMX: fix SMEP and SMAP without EPT
  KVM: x86: move kvm_set_irq_inatomic to legacy device assignment
  KVM: device assignment: remove pointless #ifdefs
  KVM: x86: merge kvm_arch_set_irq with kvm_set_msi_inatomic
  KVM: x86: zero apic_arb_prio on reset
  drivers/hv: share Hyper-V SynIC constants with userspace
  KVM: x86: handle SMBASE as physical address in RSM
  KVM: x86: add read_phys to x86_emulate_ops
  KVM: x86: removing unused variable
  KVM: don't pointlessly leave KVM_COMPAT=y in non-KVM configs
  KVM: arm/arm64: Merge vgic_set_lr() and vgic_sync_lr_elrsr()
  KVM: arm/arm64: Clean up vgic_retire_lr() and surroundings
  KVM: arm/arm64: Optimize away redundant LR tracking
  KVM: s390: use simple switch statement as multiplexer
  KVM: s390: drop useless newline in debugging data
  KVM: s390: SCA must not cross page boundaries
  KVM: arm: Do not indent the arguments of DECLARE_BITMAP
  ...
 2015-11-05 16:26:26 -08:00
Linus Torvalds
b037865754 media updates for v4.4-rc1 
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Merge tag 'media/v4.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:
 "Media updates, including:

   - Lots of improvements at the kABI documentation
   - Split of Videobuf2 into a common part and a V4L2 specific one
   - Split of the VB2 tracing events into a separate header file
   - s5p-mfc got support for Exynos 5433
   - v4l2 fixes for 64-bits alignment when running 32 bits userspace
     on ARM
   - Added support for SDR radio transmitter at core, vivid and hackrf
     drivers
   - Some y2038 fixups
   - Some improvements at V4L2 colorspace support
   - saa7164 converted to use the V4L2 core control framework
   - several new boards additions, cleanups and fixups

  PS: There are two patches for scripts/kernel-doc that are needed by
  the documentation patches on Media.  Jon is OK on merging those via
  my tree"

* tag 'media/v4.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (146 commits)
  [media] c8sectpfe: Remove select on CONFIG_FW_LOADER_USER_HELPER_FALLBACK
  [media] DocBook media: update copyright/version numbers
  [media] ivtv: Convert to get_user_pages_unlocked()
  [media] media/v4l2-ctrls: fix setting autocluster to manual with VIDIOC_S_CTRL
  [media] DocBook media: Fix a typo in encoder cmd
  [media] DocBook: add SDR specific info to G_MODULATOR / S_MODULATOR
  [media] DocBook: add SDR specific info to G_TUNER / S_TUNER
  [media] hackrf: do not set human readable name for formats
  [media] hackrf: add support for transmitter
  [media] hackrf: switch to single function which configures everything
  [media] hackrf: add control for RF amplifier
  [media] DocBook: add modulator type field
  [media] v4l: add type field to v4l2_modulator struct
  [media] DocBook: document SDR transmitter
  [media] v4l2: add support for SDR transmitter
  [media] DocBook: document tuner RF gain control
  [media] v4l2: add RF gain control
  [media] v4l2: rename V4L2_TUNER_ADC to V4L2_TUNER_SDR
  [media] media/vivid-osd: fix info leak in ioctl
  [media] media: videobuf2: Move v4l2-specific stuff to videobuf2-v4l2
  ...
 2015-11-05 12:05:15 -08:00
Tvrtko Ursulin
6172180c6b drm: Use userspace compatible type in fourcc_mod_code macro 
__u64 should be used instead of u64.

Feature originally added in:

commit e3eb3250d8
Author: Rob Clark <robdclark@gmail.com>
Date:   Thu Feb 5 14:41:52 2015 +0000

    drm: add support for tiled/compressed/etc modifier in addfb2

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Daniel Stone <daniels@collabora.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: dri-devel@lists.freedesktop.org
Cc: stable@vger.kernel.org # v4.1+
Fixes: e3eb3250d8 ("drm: add support for tiled/compressed/etc modifier in addfb2")
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1442999431-28568-1-git-send-email-tvrtko.ursulin@linux.intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
 2015-11-05 14:39:55 +02:00
Linus Torvalds
8e483ed134 char/misc drivers for 4.4-rc1 
Here is the big char/misc driver update for 4.4-rc1.  Lots of different
 driver and subsystem updates, hwtracing being the largest with the
 addition of some new platforms that are now supported.  Full details in
 the shortlog.
 
 All of these have been in linux-next for a long time with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
 "Here is the big char/misc driver update for 4.4-rc1.  Lots of
  different driver and subsystem updates, hwtracing being the largest
  with the addition of some new platforms that are now supported.  Full
  details in the shortlog.

  All of these have been in linux-next for a long time with no reported
  issues"

* tag 'char-misc-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (181 commits)
  fpga: socfpga: Fix check of return value of devm_request_irq
  lkdtm: fix ACCESS_USERSPACE test
  mcb: Destroy IDA on module unload
  mcb: Do not return zero on error path in mcb_pci_probe()
  mei: bus: set the device name before running fixup
  mei: bus: use correct lock ordering
  mei: Fix debugfs filename in error output
  char: ipmi: ipmi_ssif: Replace timeval with timespec64
  fpga: zynq-fpga: Fix issue with drvdata being overwritten.
  fpga manager: remove unnecessary null pointer checks
  fpga manager: ensure lifetime with of_fpga_mgr_get
  fpga: zynq-fpga: Change fw format to handle bin instead of bit.
  fpga: zynq-fpga: Fix unbalanced clock handling
  misc: sram: partition base address belongs to __iomem space
  coresight: etm3x: adding documentation for sysFS's cpu interface
  vme: 8-bit status/id takes 256 values, not 255
  fpga manager: Adding FPGA Manager support for Xilinx Zynq 7000
  ARM: zynq: dt: Updated devicetree for Zynq 7000 platform.
  ARM: dt: fpga: Added binding docs for Xilinx Zynq FPGA manager.
  ver_linux: proc/modules, limit text processing to 'sed'
  ...
 2015-11-04 22:15:15 -08:00
Linus Torvalds
118c216e16 Staging driver update for 4.4-rc1 
Here's the big staging driver update for 4.4-rc1.  If you were
 disappointed for 4.3-rc1 that we didn't contribute enough changesets,
 you should be happy with this pull request of over 2400 patches.
 
 But overall we removed more lines of code than we added, which is nice
 to see.  Full details in the shortlog.
 
 All of these have been in linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging driver updates from Greg KH:
 "Here's the big staging driver update for 4.4-rc1.  If you were
  disappointed for 4.3-rc1 that we didn't contribute enough changesets,
  you should be happy with this pull request of over 2400 patches.

  But overall we removed more lines of code than we added, which is nice
  to see.  Full details in the shortlog.

  All of these have been in linux-next for a while"

Greg, I've never been disappointed in how few commits Staging
contributes to the kernel..  Never.

* tag 'staging-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (2431 commits)
  Staging: rtl8192u: ieee80211: added missing blank lines
  Staging: rtl8192u: ieee80211: removed unnecessary braces
  Staging: rtl8192u: ieee80211: corrected block comments
  Staging: rtl8192u: ieee80211: corrected indent
  Staging: rtl8192u: ieee80211: added missing spaces after if
  Staging: rtl8192u: ieee80211: added missing space around '='
  Staging: rtl8192u: ieee80211: fixed position of else statements
  Staging: rtl8192u: ieee80211: fixed open brace positions
  staging: rdma: ipath: Remove unneeded vairable.
  staging: rtl8188eu: pwrGrpCnt variable removed in store_pwrindex_offset function
  staging: rtl8188eu: new variable for hal_data->MCSTxPowerLevelOriginalOffset[pwrGrpCnt] in store_pwrindex_offset function
  staging: rtl8188eu: checkpatch fixes: 'Avoid CamelCase' in hal/bb_cfg.c
  staging: rtl8188eu: checkpatch fixes: line over 80 characters splited into two parts
  staging: rtl8188eu: checkpatch fixes: alignment should match open parenthesis
  staging: rtl8188eu: checkpatch fixes: unnecessary parentheses removed in hal/bb_cfg.c
  staging: rtl8188eu: checkpatch fixes: spaces preferred around that '|' in hal/bb_cfg.c
  staging: rtl8188eu: operator = replaced by += in loop increment
  staging: rtl8188eu: occurrence of the 5 GHz code marked
  staging: rtl8188eu: increment placed into for loop header
  staging: rtl8188eu: while loop replaced by for loop in rtw_restruct_wmm_ie
  ...
 2015-11-04 21:40:53 -08:00
Linus Torvalds
3d6f47801c USB patches for 4.4-rc1 
Here is the big USB patchset for 4.4-rc1.
 
 As usual, most of the changes are in the gadget subsystem, and we
 removed a host controller for a device that is no longer in existance,
 and probably never was even made public.  There is also other minor
 driver updates and new device ids, full details in the changelog.
 
 All of these have been in linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB updates from Greg KH:
 "Here is the big USB patchset for 4.4-rc1.

  As usual, most of the changes are in the gadget subsystem, and we
  removed a host controller for a device that is no longer in existance,
  and probably never was even made public.  There is also other minor
  driver updates and new device ids, full details in the changelog.

  All of these have been in linux-next for a while"

* tag 'usb-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (233 commits)
  USB: core: Codestyle fix in urb.c
  usb: misc: usb3503: Use i2c_add_driver helper macro
  usb: host: lpc32xx: don't unregister phy device
  usb: host: lpc32xx: balance clk enable/disable on removal
  usb: host: lpc32xx: fix warnings caused by enabling unprepared clock
  uwb: drp: Use setup_timer
  uwb: neh: Use setup_timer
  uwb: rsv: Use setup_timer
  USB: qcserial: add Sierra Wireless MC74xx/EM74xx
  usb: chipidea: otg: don't wait vbus drops below BSV when starts host
  chipidea: ci_hdrc_pci: use PCI_VDEVICE() instead of PCI_DEVICE()
  doc: dt-binding: ci-hdrc-usb2: split vendor specific properties
  usb: chipidea: imx: add imx6ul usb support
  doc: dt-binding: ci-hdrc-usb2: improve property description
  usb: chipidea: imx: add usb support for imx7d
  Doc: usb: ci-hdrc-usb2: Add phy-clkgate-delay-us entry
  usb: chipidea: Add support for 'phy-clkgate-delay-us' property
  usb: chipidea: Use extcon framework for VBUS and ID detect
  usb: gadget: net2280: restore ep_cfg after defect7374 workaround
  usb: dwc2: host: Fix use after free w/ simultaneous irqs
  ...
 2015-11-04 21:26:27 -08:00
Linus Torvalds
e0700ce709 - Revert a dm-multipath change that caused a regression for unprivledged 
users (e.g. kvm guests) that issued ioctls when a multipath device had
   no available paths.
 
 - Include Christoph's refactoring of DM's ioctl handling and add support
   for passing through persistent reservations with DM multipath.
 
 - All other changes are very simple cleanups.
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Merge tag 'dm-4.4-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper updates from Mike Snitzer:
 "Smaller set of DM changes for this merge.  I've based these changes on
  Jens' for-4.4/reservations branch because the associated DM changes
  required it.

   - Revert a dm-multipath change that caused a regression for
     unprivledged users (e.g. kvm guests) that issued ioctls when a
     multipath device had no available paths.

   - Include Christoph's refactoring of DM's ioctl handling and add
     support for passing through persistent reservations with DM
     multipath.

   - All other changes are very simple cleanups"

* tag 'dm-4.4-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm switch: simplify conditional in alloc_region_table()
  dm delay: document that offsets are specified in sectors
  dm delay: capitalize the start of an delay_ctr() error message
  dm delay: Use DM_MAPIO macros instead of open-coded equivalents
  dm linear: remove redundant target name from error messages
  dm persistent data: eliminate unnecessary return values
  dm: eliminate unused "bioset" process for each bio-based DM device
  dm: convert ffs to __ffs
  dm: drop NULL test before kmem_cache_destroy() and mempool_destroy()
  dm: add support for passing through persistent reservations
  dm: refactor ioctl handling
  Revert "dm mpath: fix stalls when handling invalid ioctls"
  dm: initialize non-blk-mq queue data before queue is used
 2015-11-04 21:19:53 -08:00
Linus Torvalds
ac322de6bf md updates for 4.4. 
Two major components to this update.
 
 1/ the clustered-raid1 support from SUSE is nearly
   complete.  There are a few outstanding issues being
   worked on.  Maybe half a dozen patches will bring
   this to a usable state.
 
 2/ The first stage of journalled-raid5 support from
    Facebook makes an appearance.  With a journal
    device configured (typically NVRAM or SSD), the
    "RAID5 write hole" should be closed - a crash
    during degraded operations cannot result in data
    corruption.
 
    The next stage will be to use the journal as a
    write-behind cache so that latency can be reduced
    and in some cases throughput increased by
    performing more full-stripe writes.
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Merge tag 'md/4.4' of git://neil.brown.name/md

Pull md updates from Neil Brown:
 "Two major components to this update.

   1) The clustered-raid1 support from SUSE is nearly complete.  There
      are a few outstanding issues being worked on.  Maybe half a dozen
      patches will bring this to a usable state.

   2) The first stage of journalled-raid5 support from Facebook makes an
      appearance.  With a journal device configured (typically NVRAM or
      SSD), the "RAID5 write hole" should be closed - a crash during
      degraded operations cannot result in data corruption.

      The next stage will be to use the journal as a write-behind cache
      so that latency can be reduced and in some cases throughput
      increased by performing more full-stripe writes.

* tag 'md/4.4' of git://neil.brown.name/md: (66 commits)
  MD: when RAID journal is missing/faulty, block RESTART_ARRAY_RW
  MD: set journal disk ->raid_disk
  MD: kick out journal disk if it's not fresh
  raid5-cache: start raid5 readonly if journal is missing
  MD: add new bit to indicate raid array with journal
  raid5-cache: IO error handling
  raid5: journal disk can't be removed
  raid5-cache: add trim support for log
  MD: fix info output for journal disk
  raid5-cache: use bio chaining
  raid5-cache: small log->seq cleanup
  raid5-cache: new helper: r5_reserve_log_entry
  raid5-cache: inline r5l_alloc_io_unit into r5l_new_meta
  raid5-cache: take rdev->data_offset into account early on
  raid5-cache: refactor bio allocation
  raid5-cache: clean up r5l_get_meta
  raid5-cache: simplify state machine when caches flushes are not needed
  raid5-cache: factor out a helper to run all stripes for an I/O unit
  raid5-cache: rename flushed_ios to finished_ios
  raid5-cache: free I/O units earlier
  ...
 2015-11-04 21:12:47 -08:00
Linus Torvalds
ccf21b69a8 Merge branch 'for-4.4/reservations' of git://git.kernel.dk/linux-block 
Pull block reservation support from Jens Axboe:
 "This adds support for persistent reservations, both at the core level,
  as well as for sd and NVMe"

[ Background from the docs: "Persistent Reservations allow restricting
  access to block devices to specific initiators in a shared storage
  setup.  All implementations are expected to ensure the reservations
  survive a power loss and cover all connections in a multi path
  environment" ]

* 'for-4.4/reservations' of git://git.kernel.dk/linux-block:
  NVMe: Precedence error in nvme_pr_clear()
  nvme: add missing endianess annotations in nvme_pr_command
  NVMe: Add persistent reservation ops
  sd: implement the Persistent Reservation API
  block: add an API for Persistent Reservations
  block: cleanup blkdev_ioctl
 2015-11-04 21:01:27 -08:00
Linus Torvalds
effa04cc5a Merge branch 'for-4.4/lightnvm' of git://git.kernel.dk/linux-block 
Pull lightnvm support from Jens Axboe:
 "This adds support for lightnvm, and adds support to NVMe as well.
  This is pretty exciting, in that it enables new and interesting use
  cases for compatible flash devices.  There's a LWN writeup about an
  earlier posting here:

      https://lwn.net/Articles/641247/

  This has been underway for a while, and should be ready for merging at
  this point"

* 'for-4.4/lightnvm' of git://git.kernel.dk/linux-block:
  nvme: lightnvm: clean up a data type
  lightnvm: refactor phys addrs type to u64
  nvme: LightNVM support
  rrpc: Round-robin sector target with cost-based gc
  gennvm: Generic NVM manager
  lightnvm: Support for Open-Channel SSDs
 2015-11-04 20:46:08 -08:00
Linus Torvalds
a9aa31cdc2 Merge branch 'for-4.4/drivers' of git://git.kernel.dk/linux-block 
Pull block driver updates from Jens Axboe:
 "Here are the block driver changes for 4.4.  This pull request
  contains:

   - NVMe:
        - Refactor and moving of code to prepare for proper target
          support. From Christoph and Jay.

        - 32-bit nvme warning fix from Arnd.

        - Error initialization fix from me.

        - Proper namespace removal and reference counting support from
          Keith.

        - Device resume fix on IO failure, also from Keith.

        - Dependency fix from Keith, now that nvme isn't under the
          umbrella of the block anymore.

        - Target location and maintainers update from Jay.

   - From Ming Lei, the long awaited DIO/AIO support for loop.

   - Enable BD-RE writeable opens, from Georgios"

* 'for-4.4/drivers' of git://git.kernel.dk/linux-block: (24 commits)
  Update target repo for nvme patch contributions
  NVMe: initialize error to '0'
  nvme: use an integer value to Linux errno values
  nvme: fix 32-bit build warning
  NVMe: Add explicit block config dependency
  nvme: include <linux/types.ĥ> in <linux/nvme.h>
  nvme: move to a new drivers/nvme/host directory
  nvme.h: add missing nvme_id_ctrl endianess annotations
  nvme: move hardware structures out of the uapi version of nvme.h
  nvme: add a local nvme.h header
  nvme: properly handle partially initialized queues in nvme_create_io_queues
  nvme: merge nvme_dev_start, nvme_dev_resume and nvme_async_probe
  nvme: factor reset code into a common helper
  nvme: merge nvme_dev_reset into nvme_reset_failed_dev
  nvme: delete dev from dev_list in nvme_reset
  NVMe: Simplify device resume on io queue failure
  NVMe: Namespace removal simplifications
  NVMe: Reference count open namespaces
  cdrom: Random writing support for BD-RE media
  block: loop: support DIO & AIO
  ...
 2015-11-04 20:37:27 -08:00
Linus Torvalds
41ecf1404b xen: features for 4.4-rc0 
- Improve balloon driver memory hotplug placement.
 - Use unpopulated hotplugged memory for foreign pages (if
   supported/enabled).
 - Support 64 KiB guest pages on arm64.
 - CPU hotplug support on arm/arm64.
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Merge tag 'for-linus-4.4-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen updates from David Vrabel:

 - Improve balloon driver memory hotplug placement.

 - Use unpopulated hotplugged memory for foreign pages (if
   supported/enabled).

 - Support 64 KiB guest pages on arm64.

 - CPU hotplug support on arm/arm64.

* tag 'for-linus-4.4-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: (44 commits)
  xen: fix the check of e_pfn in xen_find_pfn_range
  x86/xen: add reschedule point when mapping foreign GFNs
  xen/arm: don't try to re-register vcpu_info on cpu_hotplug.
  xen, cpu_hotplug: call device_offline instead of cpu_down
  xen/arm: Enable cpu_hotplug.c
  xenbus: Support multiple grants ring with 64KB
  xen/grant-table: Add an helper to iterate over a specific number of grants
  xen/xenbus: Rename *RING_PAGE* to *RING_GRANT*
  xen/arm: correct comment in enlighten.c
  xen/gntdev: use types from linux/types.h in userspace headers
  xen/gntalloc: use types from linux/types.h in userspace headers
  xen/balloon: Use the correct sizeof when declaring frame_list
  xen/swiotlb: Add support for 64KB page granularity
  xen/swiotlb: Pass addresses rather than frame numbers to xen_arch_need_swiotlb
  arm/xen: Add support for 64KB page granularity
  xen/privcmd: Add support for Linux 64KB page granularity
  net/xen-netback: Make it running on 64KB page granularity
  net/xen-netfront: Make it running on 64KB page granularity
  block/xen-blkback: Make it running on 64KB page granularity
  block/xen-blkfront: Make it running on 64KB page granularity
  ...
 2015-11-04 17:32:42 -08:00
Linus Torvalds
b0f85fa11a Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 
Pull networking updates from David Miller:

Changes of note:

 1) Allow to schedule ICMP packets in IPVS, from Alex Gartrell.

 2) Provide FIB table ID in ipv4 route dumps just as ipv6 does, from
    David Ahern.

 3) Allow the user to ask for the statistics to be filtered out of
    ipv4/ipv6 address netlink dumps.  From Sowmini Varadhan.

 4) More work to pass the network namespace context around deep into
    various packet path APIs, starting with the netfilter hooks.  From
    Eric W Biederman.

 5) Add layer 2 TX/RX checksum offloading to qeth driver, from Thomas
    Richter.

 6) Use usec resolution for SYN/ACK RTTs in TCP, from Yuchung Cheng.

 7) Support Very High Throughput in wireless MESH code, from Bob
    Copeland.

 8) Allow setting the ageing_time in switchdev/rocker.  From Scott
    Feldman.

 9) Properly autoload L2TP type modules, from Stephen Hemminger.

10) Fix and enable offload features by default in 8139cp driver, from
    David Woodhouse.

11) Support both ipv4 and ipv6 sockets in a single vxlan device, from
    Jiri Benc.

12) Fix CWND limiting of thin streams in TCP, from Bendik Rønning
    Opstad.

13) Fix IPSEC flowcache overflows on large systems, from Steffen
    Klassert.

14) Convert bridging to track VLANs using rhashtable entries rather than
    a bitmap.  From Nikolay Aleksandrov.

15) Make TCP listener handling completely lockless, this is a major
    accomplishment.  Incoming request sockets now live in the
    established hash table just like any other socket too.

    From Eric Dumazet.

15) Provide more bridging attributes to netlink, from Nikolay
    Aleksandrov.

16) Use hash based algorithm for ipv4 multipath routing, this was very
    long overdue.  From Peter Nørlund.

17) Several y2038 cures, mostly avoiding timespec.  From Arnd Bergmann.

18) Allow non-root execution of EBPF programs, from Alexei Starovoitov.

19) Support SO_INCOMING_CPU as setsockopt, from Eric Dumazet.  This
    influences the port binding selection logic used by SO_REUSEPORT.

20) Add ipv6 support to VRF, from David Ahern.

21) Add support for Mellanox Spectrum switch ASIC, from Jiri Pirko.

22) Add rtl8xxxu Realtek wireless driver, from Jes Sorensen.

23) Implement RACK loss recovery in TCP, from Yuchung Cheng.

24) Support multipath routes in MPLS, from Roopa Prabhu.

25) Fix POLLOUT notification for listening sockets in AF_UNIX, from Eric
    Dumazet.

26) Add new QED Qlogic river, from Yuval Mintz, Manish Chopra, and
    Sudarsana Kalluru.

27) Don't fetch timestamps on AF_UNIX sockets, from Hannes Frederic
    Sowa.

28) Support ipv6 geneve tunnels, from John W Linville.

29) Add flood control support to switchdev layer, from Ido Schimmel.

30) Fix CHECKSUM_PARTIAL handling of potentially fragmented frames, from
    Hannes Frederic Sowa.

31) Support persistent maps and progs in bpf, from Daniel Borkmann.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1790 commits)
  sh_eth: use DMA barriers
  switchdev: respect SKIP_EOPNOTSUPP flag in case there is no recursion
  net: sched: kill dead code in sch_choke.c
  irda: Delete an unnecessary check before the function call "irlmp_unregister_service"
  net: dsa: mv88e6xxx: include DSA ports in VLANs
  net: dsa: mv88e6xxx: disable SA learning for DSA and CPU ports
  net/core: fix for_each_netdev_feature
  vlan: Invoke driver vlan hooks only if device is present
  arcnet/com20020: add LEDS_CLASS dependency
  bpf, verifier: annotate verbose printer with __printf
  dp83640: Only wait for timestamps for packets with timestamping enabled.
  ptp: Change ptp_class to a proper bitmask
  dp83640: Prune rx timestamp list before reading from it
  dp83640: Delay scheduled work.
  dp83640: Include hash in timestamp/packet matching
  ipv6: fix tunnel error handling
  net/mlx5e: Fix LSO vlan insertion
  net/mlx5e: Re-eanble client vlan TX acceleration
  net/mlx5e: Return error in case mlx5e_set_features() fails
  net/mlx5e: Don't allow more than max supported channels
  ...
 2015-11-04 09:41:05 -08:00
Alex Williamson
033291eccb vfio: Include No-IOMMU mode 
There is really no way to safely give a user full access to a DMA
capable device without an IOMMU to protect the host system.  There is
also no way to provide DMA translation, for use cases such as device
assignment to virtual machines.  However, there are still those users
that want userspace drivers even under those conditions.  The UIO
driver exists for this use case, but does not provide the degree of
device access and programming that VFIO has.  In an effort to avoid
code duplication, this introduces a No-IOMMU mode for VFIO.

This mode requires building VFIO with CONFIG_VFIO_NOIOMMU and enabling
the "enable_unsafe_noiommu_mode" option on the vfio driver.  This
should make it very clear that this mode is not safe.  Additionally,
CAP_SYS_RAWIO privileges are necessary to work with groups and
containers using this mode.  Groups making use of this support are
named /dev/vfio/noiommu-$GROUP and can only make use of the special
VFIO_NOIOMMU_IOMMU for the container.  Use of this mode, specifically
binding a device without a native IOMMU group to a VFIO bus driver
will taint the kernel and should therefore not be considered
supported.  This patch includes no-iommu support for the vfio-pci bus
driver only.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
 2015-11-04 09:56:16 -07:00
Linus Torvalds
b02ac6b18c Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull perf updates from Ingo Molnar:
 "Kernel side changes:

   - Improve accuracy of perf/sched clock on x86.  (Adrian Hunter)

   - Intel DS and BTS updates.  (Alexander Shishkin)

   - Intel cstate PMU support.  (Kan Liang)

   - Add group read support to perf_event_read().  (Peter Zijlstra)

   - Branch call hardware sampling support, implemented on x86 and
     PowerPC.  (Stephane Eranian)

   - Event groups transactional interface enhancements.  (Sukadev
     Bhattiprolu)

   - Enable proper x86/intel/uncore PMU support on multi-segment PCI
     systems.  (Taku Izumi)

   - ... misc fixes and cleanups.

  The perf tooling team was very busy again with 200+ commits, the full
  diff doesn't fit into lkml size limits.  Here's an (incomplete) list
  of the tooling highlights:

  New features:

   - Change the default event used in all tools (record/top): use the
     most precise "cycles" hw counter available, i.e. when the user
     doesn't specify any event, it will try using cycles:ppp, cycles:pp,
     etc and fall back transparently until it finds a working counter.
     (Arnaldo Carvalho de Melo)

   - Integration of perf with eBPF that, given an eBPF .c source file
     (or .o file built for the 'bpf' target with clang), will get it
     automatically built, validated and loaded into the kernel via the
     sys_bpf syscall, which can then be used and seen using 'perf trace'
     and other tools.

     (Wang Nan)

  Various user interface improvements:

   - Automatic pager invocation on long help output.  (Namhyung Kim)

   - Search for more options when passing args to -h, e.g.: (Arnaldo
     Carvalho de Melo)

        $ perf report -h interface

        Usage: perf report [<options>]

         --gtk    Use the GTK2 interface
         --stdio  Use the stdio interface
         --tui    Use the TUI interface

   - Show ordered command line options when -h is used or when an
     unknown option is specified.  (Arnaldo Carvalho de Melo)

   - If options are passed after -h, show just its descriptions, not all
     options.  (Arnaldo Carvalho de Melo)

   - Implement column based horizontal scrolling in the hists browser
     (top, report), making it possible to use the TUI for things like
     'perf mem report' where there are many more columns than can fit in
     a terminal.  (Arnaldo Carvalho de Melo)

   - Enhance the error reporting of tracepoint event parsing, e.g.:

       $ oldperf record -e sched:sched_switc usleep 1
       event syntax error: 'sched:sched_switc'
                            \___ unknown tracepoint
       Run 'perf list' for a list of valid events

     Now we get the much nicer:

       $ perf record -e sched:sched_switc ls
       event syntax error: 'sched:sched_switc'
                            \___ can't access trace events

       Error: No permissions to read /sys/kernel/debug/tracing/events/sched/sched_switc
       Hint:  Try 'sudo mount -o remount,mode=755 /sys/kernel/debug'

     And after we have those mount point permissions fixed:

       $ perf record -e sched:sched_switc ls
       event syntax error: 'sched:sched_switc'
                            \___ unknown tracepoint

       Error: File /sys/kernel/debug/tracing/events/sched/sched_switc not found.
       Hint:  Perhaps this kernel misses some CONFIG_ setting to enable this feature?.

     I.e.  basically now the event parsing routing uses the strerror_open()
     routines introduced by and used in 'perf trace' work.  (Jiri Olsa)

   - Fail properly when pattern matching fails to find a tracepoint,
     i.e. '-e non:existent' was being correctly handled, with a proper
     error message about that not being a valid event, but '-e
     non:existent*' wasn't, fix it.  (Jiri Olsa)

   - Do event name substring search as last resort in 'perf list'.
     (Arnaldo Carvalho de Melo)

     E.g.:

       # perf list clock

       List of pre-defined events (to be used in -e):

        cpu-clock                                          [Software event]
        task-clock                                         [Software event]

        uncore_cbox_0/clockticks/                          [Kernel PMU event]
        uncore_cbox_1/clockticks/                          [Kernel PMU event]

        kvm:kvm_pvclock_update                             [Tracepoint event]
        kvm:kvm_update_master_clock                        [Tracepoint event]
        power:clock_disable                                [Tracepoint event]
        power:clock_enable                                 [Tracepoint event]
        power:clock_set_rate                               [Tracepoint event]
        syscalls:sys_enter_clock_adjtime                   [Tracepoint event]
        syscalls:sys_enter_clock_getres                    [Tracepoint event]
        syscalls:sys_enter_clock_gettime                   [Tracepoint event]
        syscalls:sys_enter_clock_nanosleep                 [Tracepoint event]
        syscalls:sys_enter_clock_settime                   [Tracepoint event]
        syscalls:sys_exit_clock_adjtime                    [Tracepoint event]
        syscalls:sys_exit_clock_getres                     [Tracepoint event]
        syscalls:sys_exit_clock_gettime                    [Tracepoint event]
        syscalls:sys_exit_clock_nanosleep                  [Tracepoint event]
        syscalls:sys_exit_clock_settime                    [Tracepoint event]

  Intel PT hardware tracing enhancements:

   - Accept a zero --itrace period, meaning "as often as possible".  In
     the case of Intel PT that is the same as a period of 1 and a unit
     of 'instructions' (i.e.  --itrace=i1i).  (Adrian Hunter)

   - Harmonize itrace's synthesized callchains with the existing
     --max-stack tool option.  (Adrian Hunter)

   - Allow time to be displayed in nanoseconds in 'perf script'.
     (Adrian Hunter)

   - Fix potential infinite loop when handling Intel PT timestamps.
     (Adrian Hunter)

   - Slighly improve Intel PT debug logging.  (Adrian Hunter)

   - Warn when AUX data has been lost, just like when processing
     PERF_RECORD_LOST.  (Adrian Hunter)

   - Further document export-to-postgresql.py script.  (Adrian Hunter)

   - Add option to synthesize branch stack from auxtrace data.  (Adrian
     Hunter)

  Misc notable changes:

   - Switch the default callchain output mode to 'graph,0.5,caller', to
     make it look like the default for other tools, reducing the
     learning curve for people used to 'caller' based viewing.  (Arnaldo
     Carvalho de Melo)

   - various call chain usability enhancements.  (Namhyung Kim)

   - Introduce the 'P' event modifier, meaning 'max precision level,
     please', i.e.:

        $ perf record -e cycles:P usleep 1

     Is now similar to:

        $ perf record usleep 1

     Useful, for instance, when specifying multiple events.  (Jiri Olsa)

   - Add 'socket' sort entry, to sort by the processor socket in 'perf
     top' and 'perf report'.  (Kan Liang)

   - Introduce --socket-filter to 'perf report', for filtering by
     processor socket.  (Kan Liang)

   - Add new "Zoom into Processor Socket" operation in the perf hists
     browser, used in 'perf top' and 'perf report'.  (Kan Liang)

   - Allow probing on kmodules without DWARF.  (Masami Hiramatsu)

   - Fix 'perf probe -l' for probes added to kernel module functions.
     (Masami Hiramatsu)

   - Preparatory work for the 'perf stat record' feature that will allow
     generating perf.data files with counting data in addition to the
     sampling mode we have now (Jiri Olsa)

   - Update libtraceevent KVM plugin.  (Paolo Bonzini)

   - ... plus lots of other enhancements that I failed to list properly,
     by: Adrian Hunter, Alexander Shishkin, Andi Kleen, Andrzej Hajda,
     Arnaldo Carvalho de Melo, Dima Kogan, Don Zickus, Geliang Tang, He
     Kuang, Huaitong Han, Ingo Molnar, Jan Stancek, Jiri Olsa, Kan
     Liang, Kirill Tkhai, Masami Hiramatsu, Matt Fleming, Namhyung Kim,
     Paolo Bonzini, Peter Zijlstra, Rabin Vincent, Scott Wood, Stephane
     Eranian, Sukadev Bhattiprolu, Taku Izumi, Vaishali Thakkar, Wang
     Nan, Yang Shi and Yunlong Song"

* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (260 commits)
  perf unwind: Pass symbol source to libunwind
  tools build: Fix libiberty feature detection
  perf tools: Compile scriptlets to BPF objects when passing '.c' to --event
  perf record: Add clang options for compiling BPF scripts
  perf bpf: Attach eBPF filter to perf event
  perf tools: Make sure fixdep is built before libbpf
  perf script: Enable printing of branch stack
  perf trace: Add cmd string table to decode sys_bpf first arg
  perf bpf: Collect perf_evsel in BPF object files
  perf tools: Load eBPF object into kernel
  perf tools: Create probe points for BPF programs
  perf tools: Enable passing bpf object file to --event
  perf ebpf: Add the libbpf glue
  perf tools: Make perf depend on libbpf
  perf symbols: Fix endless loop in dso__split_kallsyms_for_kcore
  perf tools: Enable pre-event inherit setting by config terms
  perf symbols: we can now read separate debug-info files based on a build ID
  perf symbols: Fix type error when reading a build-id
  perf tools: Search for more options when passing args to -h
  perf stat: Cache aggregated map entries in extra cpumap
  ...
 2015-11-03 17:38:09 -08:00
Linus Torvalds
f5a8160c1e Merge branch 'core-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull EFI changes from Ingo Molnar:
 "The main changes in this cycle were:

   - further EFI code generalization to make it more workable for ARM64
   - various extensions, such as 64-bit framebuffer address support,
     UEFI v2.5 EFI_PROPERTIES_TABLE support
   - code modularization simplifications and cleanups
   - new debugging parameters
   - various fixes and smaller additions"

* 'core-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits)
  efi: Fix warning of int-to-pointer-cast on x86 32-bit builds
  efi: Use correct type for struct efi_memory_map::phys_map
  x86/efi: Fix kernel panic when CONFIG_DEBUG_VIRTUAL is enabled
  efi: Add "efi_fake_mem" boot option
  x86/efi: Rename print_efi_memmap() to efi_print_memmap()
  efi: Auto-load the efi-pstore module
  efi: Introduce EFI_NX_PE_DATA bit and set it from properties table
  efi: Add support for UEFIv2.5 Properties table
  efi: Add EFI_MEMORY_MORE_RELIABLE support to efi_md_typeattr_format()
  efifb: Add support for 64-bit frame buffer addresses
  efi/arm64: Clean up efi_get_fdt_params() interface
  arm64: Use core efi=debug instead of uefi_debug command line parameter
  efi/x86: Move efi=debug option parsing to core
  drivers/firmware: Make efi/esrt.c driver explicitly non-modular
  efi: Use the generic efi.memmap instead of 'memmap'
  acpi/apei: Use appropriate pgprot_t to map GHES memory
  arm64, acpi/apei: Implement arch_apei_get_mem_attributes()
  arm64/mm: Add PROT_DEVICE_nGnRnE and PROT_NORMAL_WT
  acpi, x86: Implement arch_apei_get_mem_attributes()
  efi, x86: Rearrange efi_mem_attributes()
  ...
 2015-11-03 15:05:52 -08:00
Ben Skeggs
fcf3f91c34 drm/nouveau: remove unnecessary usage of object handles 
No longer required in a lot of cases, as objects are identified over NVIF
via an alternate mechanism since the rework.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
 2015-11-03 15:02:18 +10:00
Daniel Borkmann
b2197755b2 bpf: add support for persistent maps/progs 
This work adds support for "persistent" eBPF maps/programs. The term
"persistent" is to be understood that maps/programs have a facility
that lets them survive process termination. This is desired by various
eBPF subsystem users.

Just to name one example: tc classifier/action. Whenever tc parses
the ELF object, extracts and loads maps/progs into the kernel, these
file descriptors will be out of reach after the tc instance exits.
So a subsequent tc invocation won't be able to access/relocate on this
resource, and therefore maps cannot easily be shared, f.e. between the
ingress and egress networking data path.

The current workaround is that Unix domain sockets (UDS) need to be
instrumented in order to pass the created eBPF map/program file
descriptors to a third party management daemon through UDS' socket
passing facility. This makes it a bit complicated to deploy shared
eBPF maps or programs (programs f.e. for tail calls) among various
processes.

We've been brainstorming on how we could tackle this issue and various
approches have been tried out so far, which can be read up further in
the below reference.

The architecture we eventually ended up with is a minimal file system
that can hold map/prog objects. The file system is a per mount namespace
singleton, and the default mount point is /sys/fs/bpf/. Any subsequent
mounts within a given namespace will point to the same instance. The
file system allows for creating a user-defined directory structure.
The objects for maps/progs are created/fetched through bpf(2) with
two new commands (BPF_OBJ_PIN/BPF_OBJ_GET). I.e. a bpf file descriptor
along with a pathname is being passed to bpf(2) that in turn creates
(we call it eBPF object pinning) the file system nodes. Only the pathname
is being passed to bpf(2) for getting a new BPF file descriptor to an
existing node. The user can use that to access maps and progs later on,
through bpf(2). Removal of file system nodes is being managed through
normal VFS functions such as unlink(2), etc. The file system code is
kept to a very minimum and can be further extended later on.

The next step I'm working on is to add dump eBPF map/prog commands
to bpf(2), so that a specification from a given file descriptor can
be retrieved. This can be used by things like CRIU but also applications
can inspect the meta data after calling BPF_OBJ_GET.

Big thanks also to Alexei and Hannes who significantly contributed
in the design discussion that eventually let us end up with this
architecture here.

Reference: https://lkml.org/lkml/2015/10/15/925
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2015-11-02 22:48:39 -05:00
Trond Myklebust
ac3c860c75 NFS: NFSoRDMA Client Side Changes 
In addition to a variety of bugfixes, these patches are mostly geared at
 enabling both swap and backchannel support to the NFS over RDMA client.
 
 Signed-off-by: Anna Schumake <Anna.Schumaker@Netapp.com>
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Merge tag 'nfs-rdma-4.4-2' of git://git.linux-nfs.org/projects/anna/nfs-rdma

NFS: NFSoRDMA Client Side Changes

In addition to a variety of bugfixes, these patches are mostly geared at
enabling both swap and backchannel support to the NFS over RDMA client.

Signed-off-by: Anna Schumake <Anna.Schumaker@Netapp.com>
 2015-11-02 17:09:24 -05:00
Linus Torvalds
17a1359034 MMC core: 
- Add new API to set VCCQ voltage - mmc_regulator_set_vqmmc()
  - Add new ioctl to allow userspace to send multi commands
  - Wait for card busy signalling before starting SDIO requests
  - Remove MMC_CLKGATE
  - Enable tuning for DDR50 mode
  - Some code clean-up/improvements to mmc pwrseq
  - Use highest priority for eMMC restart handler
  - Add DT bindings for eMMC hardware reset support
  - Extend the mmc_send_tuning() API
  - Improve ios show for debugfs
  - A couple of code optimizations
 
 MMC host:
  - Some generic OF improvements
  - Various code clean-ups
  - sirf: Add support for DDR50
  - sunxi: Add support for card busy detection
  - mediatek: Use MMC_CAP_RUNTIME_RESUME
  - mediatek: Add support for eMMC HW-reset
  - mediatek: Add support for HS400
  - dw_mmc: Convert to use the new mmc_regulator_set_vqmmc() API
  - dw_mmc: Add external DMA interface support
  - dw_mmc: Some various improvements
  - dw_mmc-rockchip: MMC tuning with the clock phase framework
  - sdhci: Properly clear IRQs during resume
  - sdhci: Enable tuning for DDR50 mode
  - sdhci-of-esdhc: Use IRQ mode for card detection
  - sdhci-of-esdhc: Support both BE and LE host controller
  - sdhci-pci: Build o2micro support in the same module
  - sdhci-pci: Support for new Intel host controllers
  - sdhci-acpi: Support for new Intel host controllers
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Merge tag 'mmc-v4.4' of git://git.linaro.org/people/ulf.hansson/mmc

Pull MMC updates from Ulf Hansson:
 "MMC core:
   - Add new API to set VCCQ voltage - mmc_regulator_set_vqmmc()
   - Add new ioctl to allow userspace to send multi commands
   - Wait for card busy signalling before starting SDIO requests
   - Remove MMC_CLKGATE
   - Enable tuning for DDR50 mode
   - Some code clean-up/improvements to mmc pwrseq
   - Use highest priority for eMMC restart handler
   - Add DT bindings for eMMC hardware reset support
   - Extend the mmc_send_tuning() API
   - Improve ios show for debugfs
   - A couple of code optimizations

  MMC host:
   - Some generic OF improvements
   - Various code clean-ups
   - sirf: Add support for DDR50
   - sunxi: Add support for card busy detection
   - mediatek: Use MMC_CAP_RUNTIME_RESUME
   - mediatek: Add support for eMMC HW-reset
   - mediatek: Add support for HS400
   - dw_mmc: Convert to use the new mmc_regulator_set_vqmmc() API
   - dw_mmc: Add external DMA interface support
   - dw_mmc: Some various improvements
   - dw_mmc-rockchip: MMC tuning with the clock phase framework
   - sdhci: Properly clear IRQs during resume
   - sdhci: Enable tuning for DDR50 mode
   - sdhci-of-esdhc: Use IRQ mode for card detection
   - sdhci-of-esdhc: Support both BE and LE host controller
   - sdhci-pci: Build o2micro support in the same module
   - sdhci-pci: Support for new Intel host controllers
   - sdhci-acpi: Support for new Intel host controllers"

* tag 'mmc-v4.4' of git://git.linaro.org/people/ulf.hansson/mmc: (73 commits)
  mmc: dw_mmc: fix the wrong setting for UHS-DDR50 mode
  mmc: dw_mmc: fix the CardThreshold boundary at CardThrCtl register
  mmc: dw_mmc: NULL dereference in error message
  mmc: pwrseq: Use highest priority for eMMC restart handler
  mmc: mediatek: add HS400 support
  mmc: mmc: extend the mmc_send_tuning()
  mmc: mediatek: add implement of ops->hw_reset()
  mmc: mediatek: fix got GPD checksum error interrupt when data transfer
  mmc: mediatek: change the argument "ddr" to "timing"
  mmc: mediatek: make cmd_ints_mask to const
  mmc: dt-bindings: update Mediatek MMC bindings
  mmc: core: Add DT bindings for eMMC hardware reset support
  mmc: omap_hsmmc: Enable omap_hsmmc for Keystone 2
  mmc: sdhci-acpi: Add more ACPI HIDs for Intel controllers
  mmc: sdhci-pci: Add more PCI IDs for Intel controllers
  arm: lpc18xx_defconfig: remove CONFIG_MMC_DW_IDMAC
  arm: hisi_defconfig: remove CONFIG_MMC_DW_IDMAC
  arm: exynos_defconfig: remove CONFIG_MMC_DW_IDMAC
  arc: axs10x_defconfig: remove CONFIG_MMC_DW_IDMAC
  mips: pistachio_defconfig: remove CONFIG_MMC_DW_IDMAC
  ...
 2015-11-02 11:40:22 -08:00
Shaohua Li
5c7e81c3de raid5: enable log for raid array with cache disk 
Now log is safe to enable for raid array with cache disk

Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: NeilBrown <neilb@suse.com>
 2015-11-01 13:48:26 +11:00
Christoph Hellwig
71cdb6978a dm: add support for passing through persistent reservations 
This adds support to pass through persistent reservation requests
similar to the existing ioctl handling, and with the same limitations,
e.g. devices may only have a single target attached.

This is mostly intended for multipathing.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
 2015-10-31 19:05:59 -04:00
David S. Miller
740215ddb5 NFC 4.4 pull request 
This is the NFC pull request for 4.4.
 
 It's a bit bigger than usual, the 3 main culprits being:
 
 - A new driver for Intel's Fields Peak NCI chipset. In order to
   support this chipset we had to export a few NCI routines and
   extend the driver NCI ops to not only support proprietary
   commands but also core ones.
 
 - Support for vendor commands for both STM drivers, st-nci
   and st21nfca. Those vendor commands allow to run factory tests
   through the NFC netlink interface.
 
 - New i2c and SPI support for the Marvell driver, together with
   firmware download support for this driver's core.
 
 Besides that we also have:
 
 - A few file renames in the STM drivers, to keep the naming
   consistent between drivers.
 
 - Some improvements and fixes on the NCI HCI layer, mostly to
   properly reach a secure element over a legacy HCI link.
 
 - A few fixes for the s3fwrn5 and trf7970a drivers.
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Merge tag 'nfc-next-4.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/nfc-next

Samuel Ortiz says:

====================
NFC 4.4 pull request

This is the NFC pull request for 4.4.

It's a bit bigger than usual, the 3 main culprits being:

- A new driver for Intel's Fields Peak NCI chipset. In order to
  support this chipset we had to export a few NCI routines and
  extend the driver NCI ops to not only support proprietary
  commands but also core ones.

- Support for vendor commands for both STM drivers, st-nci
  and st21nfca. Those vendor commands allow to run factory tests
  through the NFC netlink interface.

- New i2c and SPI support for the Marvell driver, together with
  firmware download support for this driver's core.

Besides that we also have:

- A few file renames in the STM drivers, to keep the naming
  consistent between drivers.

- Some improvements and fixes on the NCI HCI layer, mostly to
  properly reach a secure element over a legacy HCI link.

- A few fixes for the s3fwrn5 and trf7970a drivers.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
 2015-10-30 20:19:43 +09:00
John W. Linville
8ed66f0e82 geneve: implement support for IPv6-based tunnels 
NOTE: Link-local IPv6 addresses for remote endpoints are not supported,
since the driver currently has no capacity for binding a geneve
interface to a specific link.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Reviewed-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2015-10-30 12:10:51 +09:00
Dave Airlie
f1a04d8258 Merge branch 'drm-next-4.4' of git://people.freedesktop.org/~agd5f/linux into drm-next 
More amdgpu and radeon stuff for drm-next.  Stoney support is the big change.
The rest is just bug fixes and code cleanups.  The Stoney stuff is pretty
low impact with respect to existing chips.

* 'drm-next-4.4' of git://people.freedesktop.org/~agd5f/linux:
  drm/amdgpu: change VM size default to 64GB
  drm/amdgpu: add Stoney pci ids
  drm/amdgpu: update the core VI support for Stoney
  drm/amdgpu: add VCE support for Stoney (v2)
  drm/amdgpu: add UVD support for Stoney
  drm/amdgpu: add GFX support for Stoney (v2)
  drm/amdgpu: add SDMA support for Stoney (v2)
  drm/amdgpu: add DCE support for Stoney
  drm/amdgpu: Update SMC/DPM for Stoney
  drm/amdgpu: add GMC support for Stoney
  drm/amdgpu: add Stoney chip family
  drm/amdgpu: fix the broken vm->mutex V2
  drm/amdgpu: remove the unnecessary parameter adev for amdgpu_fence_wait_any()
  drm/amdgpu: remove the exclusive lock
  drm/amdgpu: remove old lockup detection infrastructure
  drm: fix trivial typos
  drm/amdgpu/dce: simplify suspend/resume
  drm/amdgpu/gfx8: set TC_WB_ACTION_EN in RELEASE_MEM packet
  drm/radeon: Use rdev->gem.mutex to protect hyperz/cmask owners
 2015-10-30 09:48:28 +10:00
Bjorn Helgaas
26635112d4 PCI: Make Enhanced Allocation bitmasks more obvious 
Expand bitmask #defines completely.  This puts the shift in the code
instead of in the #define, but it makes it more obvious in the header file
how fields in the register are laid out.

No functional change.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
 2015-10-29 17:35:40 -05:00
Sean O. Stalley
f80b0ba959 PCI: Add Enhanced Allocation register entries 
Add registers defined in PCI-SIG's Enhanced allocation ECN.

[bhelgaas: s/WRITEABLE/WRITABLE]
Signed-off-by: Sean O. Stalley <sean.stalley@intel.com>
[david.daney@cavium.com: Added more definitions for PCI_EA_BEI_*]
Signed-off-by: Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
 2015-10-29 17:35:39 -05:00
Matias Bjørling
cd9e9808d1 lightnvm: Support for Open-Channel SSDs 
Open-channel SSDs are devices that share responsibilities with the host
in order to implement and maintain features that typical SSDs keep
strictly in firmware. These include (i) the Flash Translation Layer
(FTL), (ii) bad block management, and (iii) hardware units such as the
flash controller, the interface controller, and large amounts of flash
chips. In this way, Open-channels SSDs exposes direct access to their
physical flash storage, while keeping a subset of the internal features
of SSDs.

LightNVM is a specification that gives support to Open-channel SSDs
LightNVM allows the host to manage data placement, garbage collection,
and parallelism. Device specific responsibilities such as bad block
management, FTL extensions to support atomic IOs, or metadata
persistence are still handled by the device.

The implementation of LightNVM consists of two parts: core and
(multiple) targets. The core implements functionality shared across
targets. This is initialization, teardown and statistics. The targets
implement the interface that exposes physical flash to user-space
applications. Examples of such targets include key-value store,
object-store, as well as traditional block devices, which can be
application-specific.

Contributions in this patch from:

  Javier Gonzalez <jg@lightnvm.io>
  Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
  Jesper Madsen <jmad@itu.dk>

Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
 2015-10-29 16:21:42 +09:00