drm/amd/display: Unlock Pipes Based On DET Allocation

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[Why]
DML21 does not allocate DET evenly between pipes.
May result in underflow when unlocking the pipes as DET could
be overallocated.

[How]
1. Unlock pipes that have a decreased amount of DET allocation
2. Wait for the double buffer to be updated.
3. Unlock the remaining pipes.

Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Signed-off-by: Austin Zheng <Austin.Zheng@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Austin Zheng 2024-07-30 11:55:23 -04:00 • committed by Alex Deucher

parent 95d9e0803e

commit 4af0d8ebf7

7 changed files with 151 additions and 1 deletions

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28

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

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23

drivers/gpu/drm/amd/display/dc/hubbub/dcn401/dcn401_hubbub.c

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91

drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c

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2

drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.h

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2

drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_init.c

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1

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

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5

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

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