From 3f4dee59253a6882acde98a2a027e55f1330ae86 Mon Sep 17 00:00:00 2001 From: Dillon Varone Date: Fri, 23 Sep 2022 14:00:09 -0400 Subject: [PATCH] drm/amd/display: Fix merging dynamic ODM+MPO configs on DCN32 [WHY&HOW?] When merging ODM pipes that are using MPO, we must copy the stream_res from the new top pipe to the bottom pipe so that the overlayed plane is not pointing to the wrong stream assets. Reviewed-by: Martin Leung Reviewed-by: Jun Lei Acked-by: Hamza Mahfooz Signed-off-by: Dillon Varone Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c index a56ee04f7df93..f3f98e9a0ce65 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c +++ b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c @@ -1598,6 +1598,9 @@ bool dcn32_internal_validate_bw(struct dc *dc, /*MPC split rules will handle this case*/ pipe->bottom_pipe->top_pipe = NULL; } else { + /* when merging an ODM pipes, the bottom MPC pipe must now point to + * the previous ODM pipe and its associated stream assets + */ if (pipe->prev_odm_pipe->bottom_pipe) { /* 3 plane MPO*/ pipe->bottom_pipe->top_pipe = pipe->prev_odm_pipe->bottom_pipe; @@ -1607,6 +1610,8 @@ bool dcn32_internal_validate_bw(struct dc *dc, pipe->bottom_pipe->top_pipe = pipe->prev_odm_pipe; pipe->prev_odm_pipe->bottom_pipe = pipe->bottom_pipe; } + + memcpy(&pipe->bottom_pipe->stream_res, &pipe->bottom_pipe->top_pipe->stream_res, sizeof(struct stream_resource)); } } -- 2.30.2