drm/amd/display: make underflow status clear explicit

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[why]
HUBP underflow is never cleared, which causes underflow in one
test to fail another test, violating the independence requirements

[how]
Rather than make clearing implicit, we explicitly clear underflow
status in DTN.

Signed-off-by: Jun Lei <Jun.Lei@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Jun Lei 2018-10-23 12:12:50 -04:00 • committed by Alex Deucher

parent 261f392429

commit eb6b29d628

7 changed files with 70 additions and 6 deletions

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9

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.c

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3

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.h

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1

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

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2

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

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59

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer_debug.c

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1

drivers/gpu/drm/amd/display/dc/inc/hw/hubp.h

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1

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

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