drm/amd/display: Set flip pending for pipe split

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[WHY]
When doing split pipe, if one pipe is pending on flip, the entire
plane's status should be flip pending, otherwise corruption can occur
when OS writes to a surface prematurely.

[HOW]
Clear the flip pending bit before checking pipes, then OR the flip
pending bits from all pipes together to create the flip pending status
of the entire plane.

Signed-off-by: Wesley Chalmers <Wesley.Chalmers@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Eryk Brol <Eryk.Brol@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Wesley Chalmers 2019-02-06 13:19:08 -05:00 • committed by Alex Deucher

parent dcf1a98867

commit 128c075ad4

2 changed files with 14 additions and 1 deletions

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13

drivers/gpu/drm/amd/display/dc/core/dc_surface.c

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2

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c

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