drm/amd/display: Speed up DML fast_validate path

Browse source

[Why]
Iterating over every voltage state when we need to validate thousands of
configurations all at once (i.e. display hotplug) can take a significant
amount of time.

[How]
Check just the highest voltage state when fast_validate is true to
verify whether the configuration can work at all, then do a proper
validation including all voltage states later when fast_validate is false.

Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Jasdeep Dhillon <jdhillon@amd.com>
Signed-off-by: Ilya Bakoulin <Ilya.Bakoulin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Ilya Bakoulin 2022-11-24 13:58:49 -05:00 • committed by Alex Deucher

parent b8ff7e08ba

commit 1b5d0e7e15

3 changed files with 23 additions and 17 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

2

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

View file

37

drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_32.c

View file

1

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

View file