OSDN Git Service

drm/amd/display: Require immediate flip support for DCN3.1 planes
authorNicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Wed, 29 Sep 2021 20:22:53 +0000 (16:22 -0400)
committerAlex Deucher <alexander.deucher@amd.com>
Tue, 19 Oct 2021 21:19:31 +0000 (17:19 -0400)
commit5595e962bd22024d7dc1eee22ba22d76cab76b20
tree7267ec79306e72df49fea51a604ca2167aaa8ab7
parente22ad7e338230889e6bbb5e3ca599b5219aac700
drm/amd/display: Require immediate flip support for DCN3.1 planes

[Why]
Immediate flip can be enabled dynamically and has higher BW requirements
when validating which voltage mode to use.

If we validate when it's not set then potentially DCFCLK will be too low
and we will underflow.

[How]
DM always requires support so always require it as part of DML input
parameters.

This can't be enabled unconditionally on older ASIC because it blocks
some expected modes so only target DCN3.1 for now.

Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Agustin Gutierrez Sanchez <agustin.gutierrez@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>
drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c