drm/amd/display: enable idle optimizations for linux (MALL stutter)

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[Why]
We can only use this feature when the display is idle. When active vblank
irq count is 0 we know all the displays are idle.

[How]
-Add a active vblank irq counter
-Update the counter when we enable/disable vblank irq
-if vblank irq count is 0 we can consider mall stutter

Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Nick Kazlauskas <Nicholas.Kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Bhawanpreet Lakha 2020-07-30 17:03:49 -04:00 • committed by Alex Deucher

parent e74c8a4611

commit 71338cb4a7

2 changed files with 27 additions and 1 deletions

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21

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

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7

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

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