drm/amd/display: Clean up locking in dcn*_apply_ctx_for_surface()

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[Why]

dcn*_disable_plane() doesn't unlock the pipe anymore, making the extra
lock unnecessary.

In addition - during full plane updates - all necessary pipes should be
locked/unlocked together when modifying hubp to avoid tearing in
pipesplit setups.

[How]

Remove redundant locks, and add function to lock all pipes. If an
interdependent pipe update is required, lock down all pipes. Otherwise,
lock only the top pipe for the updated pipe tree.

Signed-off-by: Leo Li <sunpeng.li@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Leo Li 2019-03-20 09:52:14 -04:00 • committed by Alex Deucher

parent 113b7a0108

commit c7e557ab46

2 changed files with 49 additions and 21 deletions

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66

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

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4

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

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