From: Alvin Lee <alvin.lee2@xxxxxxx>
Clear update flags so the next flip does not have any redundant
programming (if a subsequent flip does not have a stream or plane
update, the update flags are not cleared).
Fixes: 7c2c33690791 ("drm/amd/display: Refactor fast update to use new HWSS build sequence")
Reviewed-by: Jun Lei <jun.lei@xxxxxxx>
Acked-by: Hamza Mahfooz <hamza.mahfooz@xxxxxxx>
Signed-off-by: Alvin Lee <alvin.lee2@xxxxxxx>
---
drivers/gpu/drm/amd/display/dc/core/dc.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 5d3d61faeb28..8abf060d5917 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -3579,6 +3579,13 @@ static void commit_planes_for_stream_fast(struct dc *dc,
hwss_execute_sequence(dc,
context->block_sequence,
context->block_sequence_steps);
+ /* Clear update flags so next flip doesn't have redundant programming
+ * (if there's no stream update, the update flags are not cleared).
+ */
+ if (top_pipe_to_program->plane_state)
+ top_pipe_to_program->plane_state->update_flags.raw = 0;
+ if (top_pipe_to_program->stream)
+ top_pipe_to_program->stream->update_flags.raw = 0;
}
static void commit_planes_for_stream(struct dc *dc,
--
2.40.1
