<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux.git/include/drm, branch v4.18.19</title>
<subtitle>Clone of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git</subtitle>
<link rel='alternate' type='text/html' href='https://git.exis.tech/linux.git/'/>
<entry>
<title>drm: Get ref on CRTC commit object when waiting for flip_done</title>
<updated>2018-11-13T19:12:18+00:00</updated>
<author>
<name>Leo Li</name>
<email>sunpeng.li@amd.com</email>
</author>
<published>2018-10-15T13:46:40+00:00</published>
<link rel='alternate' type='text/html' href='https://git.exis.tech/linux.git/commit/?id=89c678ab4908b0936d8e2af13c99f642da778dd9'/>
<id>89c678ab4908b0936d8e2af13c99f642da778dd9</id>
<content type='text'>
[ Upstream commit 4364bcb2cd21d042bde4776448417ddffbc54045 ]

This fixes a general protection fault, caused by accessing the contents
of a flip_done completion object that has already been freed. It occurs
due to the preemption of a non-blocking commit worker thread W by
another commit thread X. X continues to clear its atomic state at the
end, destroying the CRTC commit object that W still needs. Switching
back to W and accessing the commit objects then leads to bad results.

Worker W becomes preemptable when waiting for flip_done to complete. At
this point, a frequently occurring commit thread X can take over. Here's
an example where W is a worker thread that flips on both CRTCs, and X
does a legacy cursor update on both CRTCs:

        ...
     1. W does flip work
     2. W runs commit_hw_done()
     3. W waits for flip_done on CRTC 1
     4. &gt; flip_done for CRTC 1 completes
     5. W finishes waiting for CRTC 1
     6. W waits for flip_done on CRTC 2

     7. &gt; Preempted by X
     8. &gt; flip_done for CRTC 2 completes
     9. X atomic_check: hw_done and flip_done are complete on all CRTCs
    10. X updates cursor on both CRTCs
    11. X destroys atomic state
    12. X done

    13. &gt; Switch back to W
    14. W waits for flip_done on CRTC 2
    15. W raises general protection fault

The error looks like so:

    general protection fault: 0000 [#1] PREEMPT SMP PTI
    **snip**
    Call Trace:
     lock_acquire+0xa2/0x1b0
     _raw_spin_lock_irq+0x39/0x70
     wait_for_completion_timeout+0x31/0x130
     drm_atomic_helper_wait_for_flip_done+0x64/0x90 [drm_kms_helper]
     amdgpu_dm_atomic_commit_tail+0xcae/0xdd0 [amdgpu]
     commit_tail+0x3d/0x70 [drm_kms_helper]
     process_one_work+0x212/0x650
     worker_thread+0x49/0x420
     kthread+0xfb/0x130
     ret_from_fork+0x3a/0x50
    Modules linked in: x86_pkg_temp_thermal amdgpu(O) chash(O)
    gpu_sched(O) drm_kms_helper(O) syscopyarea sysfillrect sysimgblt
    fb_sys_fops ttm(O) drm(O)

Note that i915 has this issue masked, since hw_done is signaled after
waiting for flip_done. Doing so will block the cursor update from
happening until hw_done is signaled, preventing the cursor commit from
destroying the state.

v2: The reference on the commit object needs to be obtained before
    hw_done() is signaled, since that's the point where another commit
    is allowed to modify the state. Assuming that the
    new_crtc_state-&gt;commit object still exists within flip_done() is
    incorrect.

    Fix by getting a reference in setup_commit(), and releasing it
    during default_clear().

Signed-off-by: Leo Li &lt;sunpeng.li@amd.com&gt;
Reviewed-by: Daniel Vetter &lt;daniel.vetter@ffwll.ch&gt;
Signed-off-by: Harry Wentland &lt;harry.wentland@amd.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/1539611200-6184-1-git-send-email-sunpeng.li@amd.com
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit 4364bcb2cd21d042bde4776448417ddffbc54045 ]

This fixes a general protection fault, caused by accessing the contents
of a flip_done completion object that has already been freed. It occurs
due to the preemption of a non-blocking commit worker thread W by
another commit thread X. X continues to clear its atomic state at the
end, destroying the CRTC commit object that W still needs. Switching
back to W and accessing the commit objects then leads to bad results.

Worker W becomes preemptable when waiting for flip_done to complete. At
this point, a frequently occurring commit thread X can take over. Here's
an example where W is a worker thread that flips on both CRTCs, and X
does a legacy cursor update on both CRTCs:

        ...
     1. W does flip work
     2. W runs commit_hw_done()
     3. W waits for flip_done on CRTC 1
     4. &gt; flip_done for CRTC 1 completes
     5. W finishes waiting for CRTC 1
     6. W waits for flip_done on CRTC 2

     7. &gt; Preempted by X
     8. &gt; flip_done for CRTC 2 completes
     9. X atomic_check: hw_done and flip_done are complete on all CRTCs
    10. X updates cursor on both CRTCs
    11. X destroys atomic state
    12. X done

    13. &gt; Switch back to W
    14. W waits for flip_done on CRTC 2
    15. W raises general protection fault

The error looks like so:

    general protection fault: 0000 [#1] PREEMPT SMP PTI
    **snip**
    Call Trace:
     lock_acquire+0xa2/0x1b0
     _raw_spin_lock_irq+0x39/0x70
     wait_for_completion_timeout+0x31/0x130
     drm_atomic_helper_wait_for_flip_done+0x64/0x90 [drm_kms_helper]
     amdgpu_dm_atomic_commit_tail+0xcae/0xdd0 [amdgpu]
     commit_tail+0x3d/0x70 [drm_kms_helper]
     process_one_work+0x212/0x650
     worker_thread+0x49/0x420
     kthread+0xfb/0x130
     ret_from_fork+0x3a/0x50
    Modules linked in: x86_pkg_temp_thermal amdgpu(O) chash(O)
    gpu_sched(O) drm_kms_helper(O) syscopyarea sysfillrect sysimgblt
    fb_sys_fops ttm(O) drm(O)

Note that i915 has this issue masked, since hw_done is signaled after
waiting for flip_done. Doing so will block the cursor update from
happening until hw_done is signaled, preventing the cursor commit from
destroying the state.

v2: The reference on the commit object needs to be obtained before
    hw_done() is signaled, since that's the point where another commit
    is allowed to modify the state. Assuming that the
    new_crtc_state-&gt;commit object still exists within flip_done() is
    incorrect.

    Fix by getting a reference in setup_commit(), and releasing it
    during default_clear().

Signed-off-by: Leo Li &lt;sunpeng.li@amd.com&gt;
Reviewed-by: Daniel Vetter &lt;daniel.vetter@ffwll.ch&gt;
Signed-off-by: Harry Wentland &lt;harry.wentland@amd.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/1539611200-6184-1-git-send-email-sunpeng.li@amd.com
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/edid: VSDB yCBCr420 Deep Color mode bit definitions</title>
<updated>2018-11-10T15:49:45+00:00</updated>
<author>
<name>Clint Taylor</name>
<email>clinton.a.taylor@intel.com</email>
</author>
<published>2018-10-05T21:52:15+00:00</published>
<link rel='alternate' type='text/html' href='https://git.exis.tech/linux.git/commit/?id=c6dd29d7a92d8e51aa620ce5160b99f29e0f763e'/>
<id>c6dd29d7a92d8e51aa620ce5160b99f29e0f763e</id>
<content type='text'>
commit 9068e02f58740778d8270840657f1e250a2cc60f upstream.

HDMI Forum VSDB YCBCR420 deep color capability bits are 2:0. Correct
definitions in the header for the mask to work correctly.

Fixes: e6a9a2c3dc43 ("drm/edid: parse ycbcr 420 deep color information")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107893
Cc: &lt;stable@vger.kernel.org&gt; # v4.14+
Signed-off-by: Clint Taylor &lt;clinton.a.taylor@intel.com&gt;
Reviewed-by: Jani Nikula &lt;jani.nikula@intel.com&gt;
Reviewed-by: Shashank Sharma &lt;shashank.sharma@intel.com&gt;
Signed-off-by: Jani Nikula &lt;jani.nikula@intel.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/1538776335-12569-1-git-send-email-clinton.a.taylor@intel.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 9068e02f58740778d8270840657f1e250a2cc60f upstream.

HDMI Forum VSDB YCBCR420 deep color capability bits are 2:0. Correct
definitions in the header for the mask to work correctly.

Fixes: e6a9a2c3dc43 ("drm/edid: parse ycbcr 420 deep color information")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107893
Cc: &lt;stable@vger.kernel.org&gt; # v4.14+
Signed-off-by: Clint Taylor &lt;clinton.a.taylor@intel.com&gt;
Reviewed-by: Jani Nikula &lt;jani.nikula@intel.com&gt;
Reviewed-by: Shashank Sharma &lt;shashank.sharma@intel.com&gt;
Signed-off-by: Jani Nikula &lt;jani.nikula@intel.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/1538776335-12569-1-git-send-email-clinton.a.taylor@intel.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>x86/gpu: reserve ICL's graphics stolen memory</title>
<updated>2018-09-05T07:29:47+00:00</updated>
<author>
<name>Paulo Zanoni</name>
<email>paulo.r.zanoni@intel.com</email>
</author>
<published>2018-05-04T20:32:51+00:00</published>
<link rel='alternate' type='text/html' href='https://git.exis.tech/linux.git/commit/?id=6bdd19331fc6b9405f78e74bc9fca0beca2a194a'/>
<id>6bdd19331fc6b9405f78e74bc9fca0beca2a194a</id>
<content type='text'>
commit db0c8d8b031d2b5960f6407f7f2ca20e97e00605 upstream.

ICL changes the registers and addresses to 64 bits.

I also briefly looked at implementing an u64 version of the PCI config
read functions, but I concluded this wouldn't be trivial, so it's not
worth doing it for a single user that can't have any racing problems
while reading the register in two separate operations.

v2:
 - Scrub the development (non-public) changelog (Joonas).
 - Remove the i915.ko bits so this can be easily backported in order
   to properly avoid stolen memory even on machines without i915.ko
   (Joonas).
 - CC stable for the reasons above.

Issue: VIZ-9250
CC: stable@vger.kernel.org
Cc: Ingo Molnar &lt;mingo@kernel.org&gt;
Cc: H. Peter Anvin &lt;hpa@zytor.com&gt;
Cc: x86@kernel.org
Cc: Daniele Ceraolo Spurio &lt;daniele.ceraolospurio@intel.com&gt;
Cc: Joonas Lahtinen &lt;joonas.lahtinen@linux.intel.com&gt;
Signed-off-by: Paulo Zanoni &lt;paulo.r.zanoni@intel.com&gt;
Fixes: 412310019a20 ("drm/i915/icl: Add initial Icelake definitions.")
Reviewed-by: Joonas Lahtinen &lt;joonas.lahtinen@linux.intel.com&gt;
Acked-by: Ingo Molnar &lt;mingo@kernel.org&gt;
Signed-off-by: Rodrigo Vivi &lt;rodrigo.vivi@intel.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20180504203252.28048-1-paulo.r.zanoni@intel.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit db0c8d8b031d2b5960f6407f7f2ca20e97e00605 upstream.

ICL changes the registers and addresses to 64 bits.

I also briefly looked at implementing an u64 version of the PCI config
read functions, but I concluded this wouldn't be trivial, so it's not
worth doing it for a single user that can't have any racing problems
while reading the register in two separate operations.

v2:
 - Scrub the development (non-public) changelog (Joonas).
 - Remove the i915.ko bits so this can be easily backported in order
   to properly avoid stolen memory even on machines without i915.ko
   (Joonas).
 - CC stable for the reasons above.

Issue: VIZ-9250
CC: stable@vger.kernel.org
Cc: Ingo Molnar &lt;mingo@kernel.org&gt;
Cc: H. Peter Anvin &lt;hpa@zytor.com&gt;
Cc: x86@kernel.org
Cc: Daniele Ceraolo Spurio &lt;daniele.ceraolospurio@intel.com&gt;
Cc: Joonas Lahtinen &lt;joonas.lahtinen@linux.intel.com&gt;
Signed-off-by: Paulo Zanoni &lt;paulo.r.zanoni@intel.com&gt;
Fixes: 412310019a20 ("drm/i915/icl: Add initial Icelake definitions.")
Reviewed-by: Joonas Lahtinen &lt;joonas.lahtinen@linux.intel.com&gt;
Acked-by: Ingo Molnar &lt;mingo@kernel.org&gt;
Signed-off-by: Rodrigo Vivi &lt;rodrigo.vivi@intel.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20180504203252.28048-1-paulo.r.zanoni@intel.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'drm-next-2018-06-06-1' of git://anongit.freedesktop.org/drm/drm</title>
<updated>2018-06-06T15:16:33+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2018-06-06T15:16:33+00:00</published>
<link rel='alternate' type='text/html' href='https://git.exis.tech/linux.git/commit/?id=135c5504a600ff9b06e321694fbcac78a9530cd4'/>
<id>135c5504a600ff9b06e321694fbcac78a9530cd4</id>
<content type='text'>
Pull drm updates from Dave Airlie:
 "This starts to support NVIDIA volta hardware with nouveau, and adds
  amdgpu support for the GPU in the Kabylake-G (the intel + radeon
  single package chip), along with some initial Intel icelake enabling.

  Summary:

  New Drivers:
   - v3d - driver for broadcom V3D V3.x+ hardware
   - xen-front - XEN PV display frontend

  core:
   - handle zpos normalization in the core
   - stop looking at legacy pointers in atomic paths
   - improved scheduler documentation
   - improved aspect ratio validation
   - aspect ratio support for 64:27 and 256:135
   - drop unused control node code.

  i915:
   - Icelake (ICL) enabling
   - GuC/HuC refactoring
   - PSR/PSR2 enabling and fixes
   - DPLL management refactoring
   - DP MST fixes
   - NV12 enabling
   - HDCP improvements
   - GEM/Execlist/reset improvements
   - GVT improvements
   - stolen memory first 4k fix

  amdgpu:
   - Vega 20 support
   - VEGAM support (Kabylake-G)
   - preOS scanout buffer reservation
   - power management gfxoff support for raven
   - SR-IOV fixes
   - Vega10 power profiles and clock voltage control
   - scatter/gather display support on CZ/ST

  amdkfd:
   - GFX9 dGPU support
   - userptr memory mapping

  nouveau:
   - major refactoring for Volta GV100 support

  tda998x:
   - HDMI i2c CEC support

  etnaviv:
   - removed unused logging code
   - license text cleanups
   - MMU handling improvements
   - timeout fence fix for 50 days uptime

  tegra:
   - IOMMU support in gr2d/gr3d drivers
   - zpos support

  vc4:
   - syncobj support
   - CTM, plane alpha and async cursor support

  analogix_dp:
   - HPD and aux chan fixes

  sun4i:
   - MIPI DSI support

  tilcdc:
   - clock divider fixes for OMAP-l138 LCDK board

  rcar-du:
   - R8A77965 support
   - dma-buf fences fixes
   - hardware indexed crtc/du group handling
   - generic zplane property support

  atmel-hclcdc:
   - generic zplane property support

  mediatek:
   - use generic video mode function

  exynos:
   - S5PV210 FIMD variant support
   - IPP v2 framework
   - more HW overlays support"

* tag 'drm-next-2018-06-06-1' of git://anongit.freedesktop.org/drm/drm: (1286 commits)
  drm/amdgpu: fix 32-bit build warning
  drm/exynos: fimc: signedness bug in fimc_setup_clocks()
  drm/exynos: scaler: fix static checker warning
  drm/amdgpu: Use dev_info() to report amdkfd is not supported for this ASIC
  drm/amd/display: Remove use of division operator for long longs
  drm/amdgpu: Update GFX info structure to match what vega20 used
  drm/amdgpu/pp: remove duplicate assignment
  drm/sched: add rcu_barrier after entity fini
  drm/amdgpu: move VM BOs on LRU again
  drm/amdgpu: consistenly use VM moved flag
  drm/amdgpu: kmap PDs/PTs in amdgpu_vm_update_directories
  drm/amdgpu: further optimize amdgpu_vm_handle_moved
  drm/amdgpu: cleanup amdgpu_vm_validate_pt_bos v2
  drm/amdgpu: rework VM state machine lock handling v2
  drm/amdgpu: Add runtime VCN PG support
  drm/amdgpu: Enable VCN static PG by default on RV
  drm/amdgpu: Add VCN static PG support on RV
  drm/amdgpu: Enable VCN CG by default on RV
  drm/amdgpu: Add static CG control for VCN on RV
  drm/exynos: Fix default value for zpos plane property
  ...
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull drm updates from Dave Airlie:
 "This starts to support NVIDIA volta hardware with nouveau, and adds
  amdgpu support for the GPU in the Kabylake-G (the intel + radeon
  single package chip), along with some initial Intel icelake enabling.

  Summary:

  New Drivers:
   - v3d - driver for broadcom V3D V3.x+ hardware
   - xen-front - XEN PV display frontend

  core:
   - handle zpos normalization in the core
   - stop looking at legacy pointers in atomic paths
   - improved scheduler documentation
   - improved aspect ratio validation
   - aspect ratio support for 64:27 and 256:135
   - drop unused control node code.

  i915:
   - Icelake (ICL) enabling
   - GuC/HuC refactoring
   - PSR/PSR2 enabling and fixes
   - DPLL management refactoring
   - DP MST fixes
   - NV12 enabling
   - HDCP improvements
   - GEM/Execlist/reset improvements
   - GVT improvements
   - stolen memory first 4k fix

  amdgpu:
   - Vega 20 support
   - VEGAM support (Kabylake-G)
   - preOS scanout buffer reservation
   - power management gfxoff support for raven
   - SR-IOV fixes
   - Vega10 power profiles and clock voltage control
   - scatter/gather display support on CZ/ST

  amdkfd:
   - GFX9 dGPU support
   - userptr memory mapping

  nouveau:
   - major refactoring for Volta GV100 support

  tda998x:
   - HDMI i2c CEC support

  etnaviv:
   - removed unused logging code
   - license text cleanups
   - MMU handling improvements
   - timeout fence fix for 50 days uptime

  tegra:
   - IOMMU support in gr2d/gr3d drivers
   - zpos support

  vc4:
   - syncobj support
   - CTM, plane alpha and async cursor support

  analogix_dp:
   - HPD and aux chan fixes

  sun4i:
   - MIPI DSI support

  tilcdc:
   - clock divider fixes for OMAP-l138 LCDK board

  rcar-du:
   - R8A77965 support
   - dma-buf fences fixes
   - hardware indexed crtc/du group handling
   - generic zplane property support

  atmel-hclcdc:
   - generic zplane property support

  mediatek:
   - use generic video mode function

  exynos:
   - S5PV210 FIMD variant support
   - IPP v2 framework
   - more HW overlays support"

* tag 'drm-next-2018-06-06-1' of git://anongit.freedesktop.org/drm/drm: (1286 commits)
  drm/amdgpu: fix 32-bit build warning
  drm/exynos: fimc: signedness bug in fimc_setup_clocks()
  drm/exynos: scaler: fix static checker warning
  drm/amdgpu: Use dev_info() to report amdkfd is not supported for this ASIC
  drm/amd/display: Remove use of division operator for long longs
  drm/amdgpu: Update GFX info structure to match what vega20 used
  drm/amdgpu/pp: remove duplicate assignment
  drm/sched: add rcu_barrier after entity fini
  drm/amdgpu: move VM BOs on LRU again
  drm/amdgpu: consistenly use VM moved flag
  drm/amdgpu: kmap PDs/PTs in amdgpu_vm_update_directories
  drm/amdgpu: further optimize amdgpu_vm_handle_moved
  drm/amdgpu: cleanup amdgpu_vm_validate_pt_bos v2
  drm/amdgpu: rework VM state machine lock handling v2
  drm/amdgpu: Add runtime VCN PG support
  drm/amdgpu: Enable VCN static PG by default on RV
  drm/amdgpu: Add VCN static PG support on RV
  drm/amdgpu: Enable VCN CG by default on RV
  drm/amdgpu: Add static CG control for VCN on RV
  drm/exynos: Fix default value for zpos plane property
  ...
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/bridge/synopsys: dw-hdmi: fix dw_hdmi_setup_rx_sense</title>
<updated>2018-05-30T17:42:39+00:00</updated>
<author>
<name>Neil Armstrong</name>
<email>narmstrong@baylibre.com</email>
</author>
<published>2018-05-30T09:43:58+00:00</published>
<link rel='alternate' type='text/html' href='https://git.exis.tech/linux.git/commit/?id=c32048d9e93a5ab925d745396c63e7b912147f0a'/>
<id>c32048d9e93a5ab925d745396c63e7b912147f0a</id>
<content type='text'>
The dw_hdmi_setup_rx_sense exported function should not use struct device
to recover the dw-hdmi context using drvdata, but take struct dw_hdmi
directly like other exported functions.

This caused a regression using Meson DRM on S905X since v4.17-rc1 :

Internal error: Oops: 96000007 [#1] PREEMPT SMP
[...]
CPU: 0 PID: 124 Comm: irq/32-dw_hdmi_ Not tainted 4.17.0-rc7 #2
Hardware name: Libre Technology CC (DT)
[...]
pc : osq_lock+0x54/0x188
lr : __mutex_lock.isra.0+0x74/0x530
[...]
Process irq/32-dw_hdmi_ (pid: 124, stack limit = 0x00000000adf418cb)
Call trace:
  osq_lock+0x54/0x188
  __mutex_lock_slowpath+0x10/0x18
  mutex_lock+0x30/0x38
  __dw_hdmi_setup_rx_sense+0x28/0x98
  dw_hdmi_setup_rx_sense+0x10/0x18
  dw_hdmi_top_thread_irq+0x2c/0x50
  irq_thread_fn+0x28/0x68
  irq_thread+0x10c/0x1a0
  kthread+0x128/0x130
  ret_from_fork+0x10/0x18
 Code: 34000964 d00050a2 51000484 9135c042 (f864d844)
 ---[ end trace 945641e1fbbc07da ]---
 note: irq/32-dw_hdmi_[124] exited with preempt_count 1
 genirq: exiting task "irq/32-dw_hdmi_" (124) is an active IRQ thread (irq 32)

Fixes: eea034af90c6 ("drm/bridge/synopsys: dw-hdmi: don't clobber drvdata")
Signed-off-by: Neil Armstrong &lt;narmstrong@baylibre.com&gt;
Tested-by: Koen Kooi &lt;koen@dominion.thruhere.net&gt;
Signed-off-by: Sean Paul &lt;seanpaul@chromium.org&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/1527673438-20643-1-git-send-email-narmstrong@baylibre.com
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The dw_hdmi_setup_rx_sense exported function should not use struct device
to recover the dw-hdmi context using drvdata, but take struct dw_hdmi
directly like other exported functions.

This caused a regression using Meson DRM on S905X since v4.17-rc1 :

Internal error: Oops: 96000007 [#1] PREEMPT SMP
[...]
CPU: 0 PID: 124 Comm: irq/32-dw_hdmi_ Not tainted 4.17.0-rc7 #2
Hardware name: Libre Technology CC (DT)
[...]
pc : osq_lock+0x54/0x188
lr : __mutex_lock.isra.0+0x74/0x530
[...]
Process irq/32-dw_hdmi_ (pid: 124, stack limit = 0x00000000adf418cb)
Call trace:
  osq_lock+0x54/0x188
  __mutex_lock_slowpath+0x10/0x18
  mutex_lock+0x30/0x38
  __dw_hdmi_setup_rx_sense+0x28/0x98
  dw_hdmi_setup_rx_sense+0x10/0x18
  dw_hdmi_top_thread_irq+0x2c/0x50
  irq_thread_fn+0x28/0x68
  irq_thread+0x10c/0x1a0
  kthread+0x128/0x130
  ret_from_fork+0x10/0x18
 Code: 34000964 d00050a2 51000484 9135c042 (f864d844)
 ---[ end trace 945641e1fbbc07da ]---
 note: irq/32-dw_hdmi_[124] exited with preempt_count 1
 genirq: exiting task "irq/32-dw_hdmi_" (124) is an active IRQ thread (irq 32)

Fixes: eea034af90c6 ("drm/bridge/synopsys: dw-hdmi: don't clobber drvdata")
Signed-off-by: Neil Armstrong &lt;narmstrong@baylibre.com&gt;
Tested-by: Koen Kooi &lt;koen@dominion.thruhere.net&gt;
Signed-off-by: Sean Paul &lt;seanpaul@chromium.org&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/1527673438-20643-1-git-send-email-narmstrong@baylibre.com
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/scheduler: Remove obsolete spinlock.</title>
<updated>2018-05-18T21:08:17+00:00</updated>
<author>
<name>Andrey Grodzovsky</name>
<email>andrey.grodzovsky@amd.com</email>
</author>
<published>2018-05-15T18:42:20+00:00</published>
<link rel='alternate' type='text/html' href='https://git.exis.tech/linux.git/commit/?id=563e1e664d27292a3b55ca08366dc8c32db52450'/>
<id>563e1e664d27292a3b55ca08366dc8c32db52450</id>
<content type='text'>
This spinlock is superfluous, any call to drm_sched_entity_push_job
should already be under a lock together with matching drm_sched_job_init
to match the order of insertion into queue with job's fence seqence
number.

v2:
Improve patch description.
Add functions documentation describing the locking considerations

Signed-off-by: Andrey Grodzovsky &lt;andrey.grodzovsky@amd.com&gt;
Acked-by: Chunming Zhou &lt;david1.zhou@amd.com&gt;
Reviewed-by: Christian König &lt;christian.koenig@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This spinlock is superfluous, any call to drm_sched_entity_push_job
should already be under a lock together with matching drm_sched_job_init
to match the order of insertion into queue with job's fence seqence
number.

v2:
Improve patch description.
Add functions documentation describing the locking considerations

Signed-off-by: Andrey Grodzovsky &lt;andrey.grodzovsky@amd.com&gt;
Acked-by: Chunming Zhou &lt;david1.zhou@amd.com&gt;
Reviewed-by: Christian König &lt;christian.koenig@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/amdgpu: Add vega20 to asic_type enum.</title>
<updated>2018-05-17T15:13:09+00:00</updated>
<author>
<name>Feifei Xu</name>
<email>Feifei.Xu@amd.com</email>
</author>
<published>2018-04-20T04:27:54+00:00</published>
<link rel='alternate' type='text/html' href='https://git.exis.tech/linux.git/commit/?id=956fcddc0b2a7430b6ee4783827f57cb7c823c7d'/>
<id>956fcddc0b2a7430b6ee4783827f57cb7c823c7d</id>
<content type='text'>
Add vega20 to amd_asic_type enum and amdgpu_asic_name[].

Reviewed-by: Christian König &lt;christian.koenig@amd.com&gt;
Signed-off-by: Feifei Xu &lt;Feifei.Xu@amd.com&gt;
Reviewed-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
Reviewed-by: Hawking Zhang &lt;Hawking.Zhang@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Add vega20 to amd_asic_type enum and amdgpu_asic_name[].

Reviewed-by: Christian König &lt;christian.koenig@amd.com&gt;
Signed-off-by: Feifei Xu &lt;Feifei.Xu@amd.com&gt;
Reviewed-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
Reviewed-by: Hawking Zhang &lt;Hawking.Zhang@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge branch 'drm-next-4.18' of git://people.freedesktop.org/~agd5f/linux into drm-next</title>
<updated>2018-05-15T22:31:29+00:00</updated>
<author>
<name>Dave Airlie</name>
<email>airlied@redhat.com</email>
</author>
<published>2018-05-15T22:21:51+00:00</published>
<link rel='alternate' type='text/html' href='https://git.exis.tech/linux.git/commit/?id=95d2c3e15da613afd53b4b8f2cdb352dc7d12221'/>
<id>95d2c3e15da613afd53b4b8f2cdb352dc7d12221</id>
<content type='text'>
Main changes for 4.18.  I'd like to do a separate pull for vega20 later
this week or next.  Highlights:
- Reserve pre-OS scanout buffer during init for seemless transition from
  console to driver
- VEGAM support
- Improved GPU scheduler documentation
- Initial gfxoff support for raven
- SR-IOV fixes
- Default to non-AGP on PowerPC for radeon
- Fine grained clock voltage control for vega10
- Power profiles for vega10
- Further clean up of powerplay/driver interface
- Underlay fixes
- Display link bw updates
- Gamma fixes
- Scatter/Gather display support on CZ/ST
- Misc bug fixes and clean ups

[airlied: fixup v3d vs scheduler API change]

Link: https://patchwork.freedesktop.org/patch/msgid/20180515185450.1113-1-alexander.deucher@amd.com
Signed-off-by: Dave Airlie &lt;airlied@redhat.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Main changes for 4.18.  I'd like to do a separate pull for vega20 later
this week or next.  Highlights:
- Reserve pre-OS scanout buffer during init for seemless transition from
  console to driver
- VEGAM support
- Improved GPU scheduler documentation
- Initial gfxoff support for raven
- SR-IOV fixes
- Default to non-AGP on PowerPC for radeon
- Fine grained clock voltage control for vega10
- Power profiles for vega10
- Further clean up of powerplay/driver interface
- Underlay fixes
- Display link bw updates
- Gamma fixes
- Scatter/Gather display support on CZ/ST
- Misc bug fixes and clean ups

[airlied: fixup v3d vs scheduler API change]

Link: https://patchwork.freedesktop.org/patch/msgid/20180515185450.1113-1-alexander.deucher@amd.com
Signed-off-by: Dave Airlie &lt;airlied@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'drm-intel-next-2018-05-14' of git://anongit.freedesktop.org/drm/drm-intel into drm-next</title>
<updated>2018-05-15T21:10:13+00:00</updated>
<author>
<name>Dave Airlie</name>
<email>airlied@redhat.com</email>
</author>
<published>2018-05-15T21:10:13+00:00</published>
<link rel='alternate' type='text/html' href='https://git.exis.tech/linux.git/commit/?id=b8a71080ad288eb3fe42f101e64526cdd2823f93'/>
<id>b8a71080ad288eb3fe42f101e64526cdd2823f93</id>
<content type='text'>
Last drm/i915 changes for v4.18:

- NV12 enabling (Chandra, Maarten)
- ICL workarounds (Oscar)
- ICL basic DPLL enabling (Paulo)
- GVT updates
- DP link config refactoring (Jani)
- Module parameter to override DMC firmware (Jani)
- PSR updates (José, DK, Daniel, Ville)
- ICL DP vswing programming (Manasi)
- ICL DBuf slice updates (Mahesh)
- Selftest fixes and updates (Chris, Matthew, Oscar)
- Execlist fixes and updates (Chris)
- Stolen memory first 4k fix (Hans de Goede)
- wait_for fixes (Mika)
- Tons of GEM improvements (Chris)
- Plenty of other fixes and improvements (Everyone)
- Crappy changelog (Me)

Signed-off-by: Dave Airlie &lt;airlied@redhat.com&gt;

# gpg: Signature made Mon 14 May 2018 11:04:24 PM AEST
# gpg:                using RSA key D398079D26ABEE6F
# gpg: Good signature from "Jani Nikula &lt;jani.nikula@intel.com&gt;"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 1565 A65B 77B0 632E 1124  E59C D398 079D 26AB EE6F

# Conflicts:
#	drivers/gpu/drm/i915/intel_lrc.c
#	drivers/gpu/drm/i915/intel_sprite.c
Link: https://patchwork.freedesktop.org/patch/msgid/87k1s51bvw.fsf@intel.com
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Last drm/i915 changes for v4.18:

- NV12 enabling (Chandra, Maarten)
- ICL workarounds (Oscar)
- ICL basic DPLL enabling (Paulo)
- GVT updates
- DP link config refactoring (Jani)
- Module parameter to override DMC firmware (Jani)
- PSR updates (José, DK, Daniel, Ville)
- ICL DP vswing programming (Manasi)
- ICL DBuf slice updates (Mahesh)
- Selftest fixes and updates (Chris, Matthew, Oscar)
- Execlist fixes and updates (Chris)
- Stolen memory first 4k fix (Hans de Goede)
- wait_for fixes (Mika)
- Tons of GEM improvements (Chris)
- Plenty of other fixes and improvements (Everyone)
- Crappy changelog (Me)

Signed-off-by: Dave Airlie &lt;airlied@redhat.com&gt;

# gpg: Signature made Mon 14 May 2018 11:04:24 PM AEST
# gpg:                using RSA key D398079D26ABEE6F
# gpg: Good signature from "Jani Nikula &lt;jani.nikula@intel.com&gt;"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 1565 A65B 77B0 632E 1124  E59C D398 079D 26AB EE6F

# Conflicts:
#	drivers/gpu/drm/i915/intel_lrc.c
#	drivers/gpu/drm/i915/intel_sprite.c
Link: https://patchwork.freedesktop.org/patch/msgid/87k1s51bvw.fsf@intel.com
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/scheduler: remove unused parameter</title>
<updated>2018-05-15T18:44:27+00:00</updated>
<author>
<name>Nayan Deshmukh</name>
<email>nayan26deshmukh@gmail.com</email>
</author>
<published>2018-03-29T17:06:32+00:00</published>
<link rel='alternate' type='text/html' href='https://git.exis.tech/linux.git/commit/?id=8344c53f57057b42a5da87e9557c40fcda18fb7a'/>
<id>8344c53f57057b42a5da87e9557c40fcda18fb7a</id>
<content type='text'>
this patch also effect the amdgpu and etnaviv drivers which
use the function drm_sched_entity_init

Signed-off-by: Nayan Deshmukh &lt;nayan26deshmukh@gmail.com&gt;
Suggested-by: Christian König &lt;christian.koenig@amd.com&gt;
Acked-by: Lucas Stach &lt;l.stach@pengutronix.de&gt;
Reviewed-by: Christian König &lt;christian.koenig@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
this patch also effect the amdgpu and etnaviv drivers which
use the function drm_sched_entity_init

Signed-off-by: Nayan Deshmukh &lt;nayan26deshmukh@gmail.com&gt;
Suggested-by: Christian König &lt;christian.koenig@amd.com&gt;
Acked-by: Lucas Stach &lt;l.stach@pengutronix.de&gt;
Reviewed-by: Christian König &lt;christian.koenig@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</pre>
</div>
</content>
</entry>
</feed>
