drm/amd/display: Call into DC once per multiplane flip

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[Why]
amdgpu_dm_commit_planes was performing multi-plane
flips incorrectly:

It waited for vblank once per flipped plane

It prepared flip ISR and acquired the corresponding vblank ref
once per plane, although it closed ISR and put the ref once
per crtc

It called into dc once per flipped plane, duplicating some work

[How]
Wait for vblank, get vblank ref, prepare flip ISR, and call into
DC only once, and only if there is a pageflip

Make freesync continue to update planes even if vrr information
has already been changed

Signed-off-by: David Francis <David.Francis@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

David Francis 2018-12-11 15:17:15 -05:00 • committed by Alex Deucher

parent 02d6a6fcdf

commit 8a48b44cd0

1 changed files with 155 additions and 181 deletions

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332

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

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