linux-stable.git/drivers/gpu/drm, branch v5.8.4

Revert "drm/amd/display: Improve DisplayPort monitor interop"

2020-08-26T09:49:20+00:00

This reverts commit 1adb2ff1f6b170cdbc3925a359c8f39d2215dc20.

This breaks display wake up in stable kernels (5.7.x and 5.8.x).

Note that there is no upstream equivalent to this
revert. This patch was targeted for stable by Sasha's stable
patch process. Presumably there are some other changes necessary
for this patch to work properly on stable kernels.

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1266
Signed-off-by: Alex Deucher 
Cc: stable@vger.kernel.org # 5.7.x, 5.8.x
Cc: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman

drm/virtio: fix missing dma_fence_put() in virtio_gpu_execbuffer_ioctl()

2020-08-26T09:49:08+00:00

[ Upstream commit 8b6ec999b198b59ae61e86e70f5e9df73fe4754f ]

We should put the reference count of the fence after calling
virtio_gpu_cmd_submit(). So add the missing dma_fence_put().

Fixes: 2cd7b6f08bc4 ("drm/virtio: add in/out fence support for explicit synchronization")
Co-developed-by: Xin He 
Signed-off-by: Xin He 
Signed-off-by: Qi Liu 
Reviewed-by: Muchun Song 
Link: http://patchwork.freedesktop.org/patch/msgid/20200721101647.42653-1-hexin.op@bytedance.com
Signed-off-by: Gerd Hoffmann 
Signed-off-by: Sasha Levin

drm/ttm: fix offset in VMAs with a pg_offs in ttm_bo_vm_access

2020-08-26T09:49:05+00:00

[ Upstream commit c0001213d195d1bac83e0744c06ff06dd5a8ba53 ]

VMAs with a pg_offs that's offset from the start of the vma_node need
to adjust the offset within the BO accordingly. This matches the
offset calculation in ttm_bo_vm_fault_reserved.

Signed-off-by: Felix Kuehling 
Tested-by: Laurent Morichetti 
Signed-off-by: Christian König 
Link: https://patchwork.freedesktop.org/patch/381169/
Signed-off-by: Sasha Levin

drm/i915: Provide the perf pmu.module

2020-08-26T09:49:03+00:00

[ Upstream commit df3ab3cb7eae63c6eb7c9aebcc196a75d59f65dd ]

Rather than manually implement our own module reference counting for perf
pmu events, finally realise that there is a module parameter to struct
pmu for this very purpose.

Signed-off-by: Chris Wilson 
Cc: Tvrtko Ursulin 
Cc: stable@vger.kernel.org
Reviewed-by: Tvrtko Ursulin 
Link: https://patchwork.freedesktop.org/patch/msgid/20200716094643.31410-1-chris@chris-wilson.co.uk
Signed-off-by: Rodrigo Vivi 
(cherry picked from commit 27e897beec1c59861f15d4d3562c39ad1143620f)
Signed-off-by: Jani Nikula 
Signed-off-by: Sasha Levin

drm/i915/pmu: Prefer drm_WARN_ON over WARN_ON

2020-08-26T09:49:03+00:00

[ Upstream commit bf07f6ebffefce2bbf3c318f9ce2f987774ea983 ]

struct drm_device specific drm_WARN* macros include device information
in the backtrace, so we know what device the warnings originate from.

Prefer drm_WARN_ON over WARN_ON.

Signed-off-by: Pankaj Bharadiya 
Signed-off-by: Jani Nikula 
Link: https://patchwork.freedesktop.org/patch/msgid/20200504181600.18503-8-pankaj.laxminarayan.bharadiya@intel.com
Signed-off-by: Sasha Levin

drm/amd/display: fix pow() crashing when given base 0

2020-08-26T09:49:03+00:00

commit d2e59d0ff4c44d1f6f8ed884a5bea7d1bb7fd98c upstream.

[Why&How]
pow(a,x) is implemented as exp(x*log(a)). log(0) will crash.
So return 0^x = 0, unless x=0, convention seems to be 0^0 = 1.

Cc: stable@vger.kernel.org
Signed-off-by: Krunoslav Kovac 
Reviewed-by: Anthony Koo 
Acked-by: Rodrigo Siqueira 
Signed-off-by: Alex Deucher 
Signed-off-by: Greg Kroah-Hartman

drm/amd/display: Fix DFPstate hang due to view port changed

2020-08-26T09:49:03+00:00

commit 8e80d482608a4e6a97c75272ef8b4bcfc5d0c490 upstream.

[Why]
Place the cursor in the center of screen between two pipes then
adjusting the viewport but cursour doesn't update cause DFPstate hang.

[How]
If viewport changed, update cursor as well.

Cc: stable@vger.kernel.org
Signed-off-by: Paul Hsieh 
Reviewed-by: Aric Cyr 
Acked-by: Rodrigo Siqueira 
Signed-off-by: Alex Deucher 
Signed-off-by: Greg Kroah-Hartman

drm/amd/display: Blank stream before destroying HDCP session

2020-08-26T09:49:03+00:00

commit 79940e4d10df9c737a394630968471c632246ee0 upstream.

[Why]
Stream disable sequence incorretly destroys HDCP session while stream is
not blanked and while audio is not muted. This sequence causes a flash
of corruption during mode change and an audio click.

[How]
Change sequence to blank stream before destroying HDCP session. Audio will
also be muted by blanking the stream.

Cc: stable@vger.kernel.org
Signed-off-by: Jaehyun Chung 
Reviewed-by: Alvin Lee 
Acked-by: Qingqing Zhuo 
Signed-off-by: Alex Deucher 
Signed-off-by: Greg Kroah-Hartman

drm/amd/display: Fix EDID parsing after resume from suspend

2020-08-26T09:49:02+00:00

commit b24bdc37d03a0478189e20a50286092840f414fa upstream.

[Why]
Resuming from suspend, CEA blocks from EDID are not parsed and no video
modes can support YUV420. When this happens, output bpc cannot go over
8-bit with 4K modes on HDMI.

[How]
In amdgpu_dm_update_connector_after_detect(), drm_add_edid_modes() is
called after drm_connector_update_edid_property() to fully parse EDID
and update display info.

Cc: stable@vger.kernel.org
Signed-off-by: Stylon Wang 
Reviewed-by: Nicholas Kazlauskas 
Acked-by: Qingqing Zhuo 
Signed-off-by: Alex Deucher 
Signed-off-by: Greg Kroah-Hartman

drm/amd/display: Fix incorrect backlight register offset for DCN

2020-08-26T09:49:02+00:00

commit a49f6727e14caff32419cc3002b9ae9cafb750d7 upstream.

[Why]
Typo in backlight refactor inctroduced wrong register offset.

[How]
Change DCE to DCN register map for PWRSEQ_REF_DIV

Cc: stable@vger.kernel.org
Signed-off-by: Aric Cyr 
Reviewed-by: Ashley Thomas 
Acked-by: Qingqing Zhuo 
Signed-off-by: Alex Deucher 
Signed-off-by: Greg Kroah-Hartman