drm/amd/display: Enable FPO for configs that could reduce vlevel

Browse source

[Description]
- On high refresh rate DRR displays that support VBLANK naturally,
  UCLK could be idling at DPM1 instead of DPM0 since it doesn't use
  FPO
- To achieve DPM0, enable FPO on these configs even though it can
  support P-State without FPO
- Default disable for now, have debug option to enable

Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alvin Lee <Alvin.Lee2@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Alvin Lee 2023-03-13 12:54:49 -04:00 • committed by Alex Deucher

parent d29fb7baab

commit ac18b610fd

4 changed files with 20 additions and 6 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

1

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

View file

1

drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c

View file

1

drivers/gpu/drm/amd/display/dc/dcn321/dcn321_resource.c

View file

23

drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c

View file