Commit a460beef authored by Zhikai Zhai's avatar Zhikai Zhai Committed by Alex Deucher
Browse files

drm/amd/display: Disable MPC split by default on special asic 



[WHY]
All of pipes will be used when the MPC split enable on the dcn
which just has 2 pipes. Then MPO enter will trigger the minimal
transition which need programe dcn from 2 pipes MPC split to 2
pipes MPO. This action will cause lag if happen frequently.

[HOW]
Disable the MPC split for the platform which dcn resource is limited

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: default avatarAlvin Lee <alvin.lee2@amd.com>
Acked-by: default avatarAlan Liu <haoping.liu@amd.com>
Signed-off-by: default avatarZhikai Zhai <zhikai.zhai@amd.com>
Tested-by: default avatarDaniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 5a25cefc

drivers/gpu/drm/amd/display/dc/dcn303/dcn303_resource.c

+1 −1
Original line number Diff line number Diff line
@@ -65,7 +65,7 @@ static const struct dc_debug_options debug_defaults_drv = { 
		.timing_trace = false,

		.clock_trace = true,

		.disable_pplib_clock_request = true,

		.pipe_split_policy = MPC_SPLIT_DYNAMIC,

		.pipe_split_policy = MPC_SPLIT_AVOID,

		.force_single_disp_pipe_split = false,

		.disable_dcc = DCC_ENABLE,

		.vsr_support = true,