drm/amd/display: Add support for multiple overlay planes

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[Why]
We only allowed 1 overlay plane. But now some ASICS can support multiple
overlay planes.

[How]
Use max_slave_planes as the number of overlays we can support.

Also since we cannot draw cursor over a video plane, we need to make
sure that we reject commits where the topmost plane is a video plane
(overlay only).

Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Bhawanpreet Lakha 2023-01-17 14:35:41 -05:00 • committed by Alex Deucher

parent 5ca38a18b5

commit 35f33086b1

3 changed files with 41 additions and 7 deletions

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25

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

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22

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c

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1

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.h

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