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<title>lwn.git/drivers/gpu/drm/ttm/ttm_tt.c, branch standardize-docs</title>
<subtitle>Linux kernel documentation tree maintained by Jonathan Corbet</subtitle>
<id>http://mirrors.hust.edu.cn/git/lwn.git/atom?h=standardize-docs</id>
<link rel='self' href='http://mirrors.hust.edu.cn/git/lwn.git/atom?h=standardize-docs'/>
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<updated>2017-05-18T15:22:39+00:00</updated>
<entry>
<title>drm: drop drm_[cm]alloc* helpers</title>
<updated>2017-05-18T15:22:39+00:00</updated>
<author>
<name>Michal Hocko</name>
<email>mhocko@kernel.org</email>
</author>
<published>2017-05-17T12:23:12+00:00</published>
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<id>urn:sha1:2098105ec65cb364f3d77baa446b2ad5ba6bc7b9</id>
<content type='text'>
Now that drm_[cm]alloc* helpers are simple one line wrappers around
kvmalloc_array and drm_free_large is just kvfree alias we can drop
them and replace by their native forms.

This shouldn't introduce any functional change.

Changes since v1
- fix typo in drivers/gpu//drm/etnaviv/etnaviv_gem.c - noticed by 0day
  build robot

Suggested-by: Daniel Vetter &lt;daniel@ffwll.ch&gt;
Signed-off-by: Michal Hocko &lt;mhocko@suse.com&gt;drm: drop drm_[cm]alloc* helpers
[danvet: Fixup vgem which grew another user very recently.]
Signed-off-by: Daniel Vetter &lt;daniel.vetter@ffwll.ch&gt;
Acked-by: Christian König &lt;christian.koenig@amd.com&gt;
Link: http://patchwork.freedesktop.org/patch/msgid/20170517122312.GK18247@dhcp22.suse.cz
</content>
</entry>
<entry>
<title>drm: use set_memory.h header</title>
<updated>2017-05-09T00:15:14+00:00</updated>
<author>
<name>Laura Abbott</name>
<email>labbott@redhat.com</email>
</author>
<published>2017-05-08T22:58:17+00:00</published>
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<id>urn:sha1:ed3ba07946631f5c3a091fb37b018f7570f242b1</id>
<content type='text'>
set_memory_* functions have moved to set_memory.h.  Switch to this
explicitly.

[akpm@linux-foundation.org: track drivers/gpu/drm/i915/i915_gem_gtt.c linux-next changes]
Link: http://lkml.kernel.org/r/1488920133-27229-8-git-send-email-labbott@redhat.com
Signed-off-by: Laura Abbott &lt;labbott@redhat.com&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
</entry>
<entry>
<title>drm/ttm: remove cpu_address member from ttm_tt</title>
<updated>2016-09-16T19:53:05+00:00</updated>
<author>
<name>Alexandre Courbot</name>
<email>acourbot@nvidia.com</email>
</author>
<published>2016-09-16T09:32:26+00:00</published>
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<id>urn:sha1:af1f85ddecfa341e684db950c34a1813d36750db</id>
<content type='text'>
Patch 3d50d4dcb0 exposed the CPU address of DMA-allocated pages as
returned by dma_alloc_coherent because Nouveau on Tegra needed it.

This is not required anymore - as there were no other users for it,
remove it and save some memory for everyone.

Reviewed-by: Christian König &lt;christian.koenig@amd.com&gt;
Signed-off-by: Alexandre Courbot &lt;acourbot@nvidia.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</content>
</entry>
<entry>
<title>Merge tag 'drm-for-v4.8' of git://people.freedesktop.org/~airlied/linux</title>
<updated>2016-08-02T01:44:08+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2016-08-02T01:44:08+00:00</published>
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<id>urn:sha1:731c7d3a205ba89b475b2aa71b5f13dd6ae3de56</id>
<content type='text'>
Merge drm updates from Dave Airlie:
 "This is the main drm pull request for 4.8.

  I'm down with a cold at the moment so hopefully this isn't in too bad
  a state, I finished pulling stuff last week mostly (nouveau fixes just
  went in today), so only this message should be influenced by illness.
  Apologies to anyone who's major feature I missed :-)

  Core:
        Lockless GEM BO freeing
        Non-blocking atomic work
        Documentation changes (rst/sphinx)
        Prep for new fencing changes
        Simple display helpers
        Master/auth changes
        Register/unregister rework
        Loads of trivial patches/fixes.

  New stuff:
        ARM Mali display driver (not the 3D chip)
        sii902x RGB-&gt;HDMI bridge

  Panel:
        Support for new panels
        Improved backlight support

  Bridge:
        Convert ADV7511 to bridge driver
        ADV7533 support
        TC358767 (DSI/DPI to eDP) encoder chip support

  i915:
        BXT support enabled by default
        GVT-g infrastructure
        GuC command submission and fixes
        BXT workarounds
        SKL/BKL workarounds
        Demidlayering device registration
        Thundering herd fixes
        Missing pci ids
        Atomic updates

  amdgpu/radeon:
        ATPX improvements for better dGPU power control on PX systems
        New power features for CZ/BR/ST
        Pipelined BO moves and evictions in TTM
        GPU scheduler improvements
        GPU reset improvements
        Overclocking on dGPUs with amdgpu
        Polaris powermanagement enabled

  nouveau:
        GK20A/GM20B volt and clock improvements.
        Initial support for GP100/GP104 GPUs, GP104 will not yet support
        acceleration due to NVIDIA having not released firmware for them as of yet.

  exynos:
        Exynos5433 SoC with IOMMU support.

  vc4:
        Shader validation for branching

  imx-drm:
        Atomic mode setting conversion
        Reworked DMFC FIFO allocation
        External bridge support

  analogix-dp:
        RK3399 eDP support
        Lots of fixes.

  rockchip:
        Lots of small fixes.

  msm:
        DT bindings cleanups
        Shrinker and madvise support
        ASoC HDMI codec support

  tegra:
        Host1x driver cleanups
        SOR reworking for DP support
        Runtime PM support

  omapdrm:
        PLL enhancements
        Header refactoring
        Gamma table support

  arcgpu:
        Simulator support

  virtio-gpu:
        Atomic modesetting fixes.

  rcar-du:
        Misc fixes.

  mediatek:
        MT8173 HDMI support

  sti:
        ASOC HDMI codec support
        Minor fixes

  fsl-dcu:
        Suspend/resume support
        Bridge support

  amdkfd:
        Minor fixes.

  etnaviv:
        Enable GPU clock gating

  hisilicon:
        Vblank and other fixes"

* tag 'drm-for-v4.8' of git://people.freedesktop.org/~airlied/linux: (1575 commits)
  drm/nouveau/gr/nv3x: fix instobj write offsets in gr setup
  drm/nouveau/acpi: fix lockup with PCIe runtime PM
  drm/nouveau/acpi: check for function 0x1B before using it
  drm/nouveau/acpi: return supported DSM functions
  drm/nouveau/acpi: ensure matching ACPI handle and supported functions
  drm/nouveau/fbcon: fix font width not divisible by 8
  drm/amd/powerplay: remove enable_clock_power_gatings_tasks from initialize and resume events
  drm/amd/powerplay: move clockgating to after ungating power in pp for uvd/vce
  drm/amdgpu: add query device id and revision id into system info entry at CGS
  drm/amdgpu: add new definition in bif header
  drm/amd/powerplay: rename smum header guards
  drm/amdgpu: enable UVD context buffer for older HW
  drm/amdgpu: fix default UVD context size
  drm/amdgpu: fix incorrect type of info_id
  drm/amdgpu: make amdgpu_cgs_call_acpi_method as static
  drm/amdgpu: comment out unused defaults_staturn_pro static const structure to fix the build
  drm/amdgpu: enable UVD VM only on polaris
  drm/amdgpu: increase timeout of IB test
  drm/amdgpu: add destroy session when generate VCE destroy msg.
  drm/amd: fix deadlock of job_list_lock V2
  ...
</content>
</entry>
<entry>
<title>drm/ttm: partial revert "cleanup ttm_tt_(unbind|destroy)" v3</title>
<updated>2016-07-29T18:37:04+00:00</updated>
<author>
<name>Christian König</name>
<email>christian.koenig@amd.com</email>
</author>
<published>2016-07-21T10:18:19+00:00</published>
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<id>urn:sha1:2ff2bf1e5cd731e26293e08404f06bc8314480dc</id>
<content type='text'>
We still need to unbind explicitly during a move.

This partial reverts commit ff20caa0bcbfef9f7686f8d1868a3b990921afd6.

v2: remove unnecessary check and unused variable
v3: fix typo in commit message

Signed-off-by: Christian König &lt;christian.koenig@amd.com&gt;
Reviewed-by: Edward O'Callaghan &lt;funfunctor@folklore1984.net&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</content>
</entry>
<entry>
<title>drm/ttm: remove NULL checks when calling ttm_tt_destroy</title>
<updated>2016-07-07T18:54:33+00:00</updated>
<author>
<name>Christian König</name>
<email>christian.koenig@amd.com</email>
</author>
<published>2016-06-06T08:17:51+00:00</published>
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<id>urn:sha1:4279cb1423d96e53b6b98ae9f2b41003b013a31f</id>
<content type='text'>
The function is a no-op with a NULL pointer.

Reviewed-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
Signed-off-by: Christian König &lt;christian.koenig@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</content>
</entry>
<entry>
<title>drm/ttm: cleanup ttm_tt_(unbind|destroy)</title>
<updated>2016-07-07T18:54:33+00:00</updated>
<author>
<name>Christian König</name>
<email>christian.koenig@amd.com</email>
</author>
<published>2016-06-06T08:17:50+00:00</published>
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<id>urn:sha1:089f16c55baacd5e8ae3745625efa82899b4b217</id>
<content type='text'>
ttm_tt_destroy should be the only one unbinding the object.

Reviewed-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
Signed-off-by: Christian König &lt;christian.koenig@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</content>
</entry>
<entry>
<title>file_inode(f)-&gt;i_mapping is f-&gt;f_mapping</title>
<updated>2016-05-29T22:56:09+00:00</updated>
<author>
<name>Al Viro</name>
<email>viro@zeniv.linux.org.uk</email>
</author>
<published>2015-12-05T04:45:44+00:00</published>
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<id>urn:sha1:93c76a3d437ff71fabe1d190a9f00e92cec7a621</id>
<content type='text'>
Signed-off-by: Al Viro &lt;viro@zeniv.linux.org.uk&gt;
</content>
</entry>
<entry>
<title>mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros</title>
<updated>2016-04-04T17:41:08+00:00</updated>
<author>
<name>Kirill A. Shutemov</name>
<email>kirill.shutemov@linux.intel.com</email>
</author>
<published>2016-04-01T12:29:47+00:00</published>
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<id>urn:sha1:09cbfeaf1a5a67bfb3201e0c83c810cecb2efa5a</id>
<content type='text'>
PAGE_CACHE_{SIZE,SHIFT,MASK,ALIGN} macros were introduced *long* time
ago with promise that one day it will be possible to implement page
cache with bigger chunks than PAGE_SIZE.

This promise never materialized.  And unlikely will.

We have many places where PAGE_CACHE_SIZE assumed to be equal to
PAGE_SIZE.  And it's constant source of confusion on whether
PAGE_CACHE_* or PAGE_* constant should be used in a particular case,
especially on the border between fs and mm.

Global switching to PAGE_CACHE_SIZE != PAGE_SIZE would cause to much
breakage to be doable.

Let's stop pretending that pages in page cache are special.  They are
not.

The changes are pretty straight-forward:

 - &lt;foo&gt; &lt;&lt; (PAGE_CACHE_SHIFT - PAGE_SHIFT) -&gt; &lt;foo&gt;;

 - &lt;foo&gt; &gt;&gt; (PAGE_CACHE_SHIFT - PAGE_SHIFT) -&gt; &lt;foo&gt;;

 - PAGE_CACHE_{SIZE,SHIFT,MASK,ALIGN} -&gt; PAGE_{SIZE,SHIFT,MASK,ALIGN};

 - page_cache_get() -&gt; get_page();

 - page_cache_release() -&gt; put_page();

This patch contains automated changes generated with coccinelle using
script below.  For some reason, coccinelle doesn't patch header files.
I've called spatch for them manually.

The only adjustment after coccinelle is revert of changes to
PAGE_CAHCE_ALIGN definition: we are going to drop it later.

There are few places in the code where coccinelle didn't reach.  I'll
fix them manually in a separate patch.  Comments and documentation also
will be addressed with the separate patch.

virtual patch

@@
expression E;
@@
- E &lt;&lt; (PAGE_CACHE_SHIFT - PAGE_SHIFT)
+ E

@@
expression E;
@@
- E &gt;&gt; (PAGE_CACHE_SHIFT - PAGE_SHIFT)
+ E

@@
@@
- PAGE_CACHE_SHIFT
+ PAGE_SHIFT

@@
@@
- PAGE_CACHE_SIZE
+ PAGE_SIZE

@@
@@
- PAGE_CACHE_MASK
+ PAGE_MASK

@@
expression E;
@@
- PAGE_CACHE_ALIGN(E)
+ PAGE_ALIGN(E)

@@
expression E;
@@
- page_cache_get(E)
+ get_page(E)

@@
expression E;
@@
- page_cache_release(E)
+ put_page(E)

Signed-off-by: Kirill A. Shutemov &lt;kirill.shutemov@linux.intel.com&gt;
Acked-by: Michal Hocko &lt;mhocko@suse.com&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
</entry>
<entry>
<title>drivers: gpu: Drop unlikely before IS_ERR(_OR_NULL)</title>
<updated>2015-08-06T12:13:07+00:00</updated>
<author>
<name>Viresh Kumar</name>
<email>viresh.kumar@linaro.org</email>
</author>
<published>2015-07-31T08:38:24+00:00</published>
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<id>urn:sha1:55579cfe67d76394be46f00acef8854d08db5362</id>
<content type='text'>
IS_ERR(_OR_NULL) already contain an 'unlikely' compiler flag and there
is no need to do that again from its callers. Drop it.

Signed-off-by: Viresh Kumar &lt;viresh.kumar@linaro.org&gt;
Reviewed-by: Sinclair Yeh &lt;syeh@vmware.com&gt;
Signed-off-by: Daniel Vetter &lt;daniel.vetter@ffwll.ch&gt;
</content>
</entry>
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