drm/amd/display: Allow Z8 for multiplane configurations on DCN35

Browse source

[Why]
Power improvement over DCN314, but also addresses a functional issue
where plane_state remains uncleared on pipes that aren't actually
active.

[How]
Update the check to allow for zero streams to be treated as z8 allow.
Update the check to remove plane count on the active stream case.

Z8 will still be blocked based on stutter duration, which is likely to
be the case for most multi plane configurations.

Reviewed-by: Gabe Teeger <gabe.teeger@amd.com>
Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Nicholas Kazlauskas 2024-01-04 17:56:15 -05:00 • committed by Alex Deucher

parent aa4e18d300

commit 14656c4fde

1 changed files with 2 additions and 2 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

4

drivers/gpu/drm/amd/display/dc/dml/dcn35/dcn35_fpu.c

View file