[PATCH 12/17] drm/amd/display: Minimize wait for pending updates

Zaeem Mohamed zaeem.mohamed at amd.com
Fri Nov 1 13:49:35 UTC 2024


From: Ilya Bakoulin <Ilya.Bakoulin at amd.com>

[Why/How]
Move the wait for pending updates past prepare_bandwidth if the previous
update was not a full update to reduce the average time it takes to
complete a full update.

Reviewed-by: Dillon Varone <dillon.varone at amd.com>
Reviewed-by: Alvin Lee <alvin.lee2 at amd.com>
Signed-off-by: Ilya Bakoulin <Ilya.Bakoulin at amd.com>
Signed-off-by: Zaeem Mohamed <zaeem.mohamed at amd.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 8a52fef46785..7872c6cabb14 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -3835,7 +3835,7 @@ static void commit_planes_for_stream(struct dc *dc,
 	dc_exit_ips_for_hw_access(dc);
 
 	dc_z10_restore(dc);
-	if (update_type == UPDATE_TYPE_FULL)
+	if (update_type == UPDATE_TYPE_FULL && dc->optimized_required)
 		hwss_process_outstanding_hw_updates(dc, dc->current_state);
 
 	for (i = 0; i < dc->res_pool->pipe_count; i++) {
@@ -3862,6 +3862,9 @@ static void commit_planes_for_stream(struct dc *dc,
 		context_clock_trace(dc, context);
 	}
 
+	if (update_type == UPDATE_TYPE_FULL)
+		hwss_wait_for_outstanding_hw_updates(dc, dc->current_state);
+
 	top_pipe_to_program = resource_get_otg_master_for_stream(
 				&context->res_ctx,
 				stream);
-- 
2.34.1



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