drm/amd/display: fix cursor related Pstate hang

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Move cursor programming to inside the OTG_MASTER_UPDATE_LOCK

If graphics plane go from 1 pipe to hsplit, the cursor updates
after mpc programming and unlock. Which means there is a window
of time where cursor is enabled on the wrong pipe if it's on
the right side of the screen (i.e. case where cursor need to
move from pipe 0 to pipe 3 post split). This will cause pstate hang.

Solution is to program the cursor while still locked.

Signed-off-by: Eric Yang <Eric.Yang2@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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This commit is contained in:

Eric Yang 2018-01-18 19:07:54 -05:00 • committed by Alex Deucher

parent a83ccf7cad

commit 33fd17d912

4 changed files with 90 additions and 66 deletions

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68

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

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40

drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c

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45

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

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3

drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h

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