This is a note to let you know that I've just added the patch titled drm/amd/display: Fix urgent latency override for DCN32/DCN321 to the 6.0-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: drm-amd-display-fix-urgent-latency-override-for-dcn3.patch and it can be found in the queue-6.0 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 04d6aa979704b0eda467618cde9c961f9c37937c Author: George Shen <george.shen@xxxxxxx> Date: Thu Sep 1 15:03:50 2022 -0400 drm/amd/display: Fix urgent latency override for DCN32/DCN321 [ Upstream commit e7f2f4cd67443ce308480ca461806fcc3456e0ba ] [Why] The urgent latency override is useful when debugging issues relating to underflow. Current overridden variable is not correct and has no effect on DCN3.2 and DCN3.21 DML calculations. [How] For DCN3.2 and DCN3.21, override the correct urgent latency variable when bounding box override is present. Reviewed-by: Alvin Lee <alvin.lee2@xxxxxxx> Reviewed-by: Nevenko Stupar <Nevenko.Stupar@xxxxxxx> Acked-by: Wayne Lin <wayne.lin@xxxxxxx> Signed-off-by: George Shen <george.shen@xxxxxxx> Tested-by: Daniel Wheeler <daniel.wheeler@xxxxxxx> Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> 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 e573e706430d..b9d3a4000c3d 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 @@ -2199,6 +2199,7 @@ void dcn32_update_bw_bounding_box_fpu(struct dc *dc, struct clk_bw_params *bw_pa if ((int)(dcn3_2_soc.urgent_latency_us * 1000) != dc->bb_overrides.urgent_latency_ns && dc->bb_overrides.urgent_latency_ns) { dcn3_2_soc.urgent_latency_us = dc->bb_overrides.urgent_latency_ns / 1000.0; + dcn3_2_soc.urgent_latency_pixel_data_only_us = dc->bb_overrides.urgent_latency_ns / 1000.0; } if ((int)(dcn3_2_soc.dram_clock_change_latency_us * 1000) diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c index c87091683b5d..b6369758b491 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c +++ b/drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c @@ -489,6 +489,7 @@ void dcn321_update_bw_bounding_box_fpu(struct dc *dc, struct clk_bw_params *bw_p if ((int)(dcn3_21_soc.urgent_latency_us * 1000) != dc->bb_overrides.urgent_latency_ns && dc->bb_overrides.urgent_latency_ns) { dcn3_21_soc.urgent_latency_us = dc->bb_overrides.urgent_latency_ns / 1000.0; + dcn3_21_soc.urgent_latency_pixel_data_only_us = dc->bb_overrides.urgent_latency_ns / 1000.0; } if ((int)(dcn3_21_soc.dram_clock_change_latency_us * 1000)