drm/amd/display: Defer GAMCOR and DSCL power down sequence to vupdate

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[WHY]
Every other CM LUT power down sequence is deferred to next vupdate as
memory powerdown updates immediately while selecting LUTs is double
buffered.  Previous update to defer LUT power down missed GAMCOR and
DSCL, causing some visible flicker when entering/exiting fullscreen
video playback.

[HOW]
Update dpp deferred update loop to check for valid DPPs in res_pool
instead of referencing dcn_ip which turns out to not be populated during
runtime.  Move GAMCOR and DSCL powerdown to dpp deferred updates.

Reviewed-by: Haonan Wang <Haonan.Wang2@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Acked-by: Agustin Gutierrez <agustin.gutierrez@amd.com>
Signed-off-by: Michael Strauss <michael.strauss@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Michael Strauss 2021-10-06 15:50:10 -04:00 • committed by Alex Deucher

parent 5ffb5267bd

commit 5fdccd5b88

6 changed files with 38 additions and 6 deletions

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6

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

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12

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_dscl.c

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14

drivers/gpu/drm/amd/display/dc/dcn30/dcn30_dpp.c

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8

drivers/gpu/drm/amd/display/dc/dcn30/dcn30_dpp_cm.c

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2

drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c

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2

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

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