From d294353e7ea815ad000f755419fd0cec01f01245 Mon Sep 17 00:00:00 2001 From: Alvin Lee Date: Fri, 15 May 2020 18:18:20 -0400 Subject: [PATCH] drm/amd/display: Don't compare same stream for synchronized vblank [Why] When determining synchronzied vblank we don't need to compare the stream with itself [How] If comparing same stream, continue to next iteration Signed-off-by: Alvin Lee Reviewed-by: Jun Lei Acked-by: Qingqing Zhuo Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c index 4ffdbcbcdfd46..8bf7c5bc946cc 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c @@ -2015,6 +2015,10 @@ int dcn20_populate_dml_pipes_from_context( pipe_cnt = i; continue; } + + if (res_ctx->pipe_ctx[pipe_cnt].stream == res_ctx->pipe_ctx[i].stream) + continue; + if (dc->debug.disable_timing_sync || !resource_are_streams_timing_synchronizable( res_ctx->pipe_ctx[pipe_cnt].stream, res_ctx->pipe_ctx[i].stream)) { -- 2.30.2