Commit 5d3e1442 authored by Josip Pavic's avatar Josip Pavic Committed by Alex Deucher
Browse files

drm/amd/display: do not wait for vblank during pipe programming 



[Why]
Waiting for the vlbank every time a global sync update is requested,
including during full update flips, results in a stutter.

[How]
Do not wait for vblank during pipe programming.

Reviewed-by: default avatarAric Cyr <Aric.Cyr@amd.com>
Acked-by: default avatarStylon Wang <stylon.wang@amd.com>
Signed-off-by: default avatarJosip Pavic <Josip.Pavic@amd.com>
Tested-by: default avatarDaniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent c371b0d1

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c

+0 −1
Original line number Diff line number Diff line
@@ -1593,7 +1593,6 @@ static void dcn20_program_pipe( 
				pipe_ctx->pipe_dlg_param.vupdate_offset,

				pipe_ctx->pipe_dlg_param.vupdate_width);



		pipe_ctx->stream_res.tg->funcs->wait_for_state(pipe_ctx->stream_res.tg, CRTC_STATE_VBLANK);

		pipe_ctx->stream_res.tg->funcs->wait_for_state(pipe_ctx->stream_res.tg, CRTC_STATE_VACTIVE);



		pipe_ctx->stream_res.tg->funcs->set_vtg_params(