This is a note to let you know that I've just added the patch titled drm/amd/display: Update efficiency bandwidth for dcn351 to the 6.9-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-update-efficiency-bandwidth-for-dcn3.patch and it can be found in the queue-6.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit a5c746d41918374acefec2b5dd3e5f5489f995aa Author: Fangzhi Zuo <Jerry.Zuo@xxxxxxx> Date: Wed Jun 26 14:07:49 2024 -0400 drm/amd/display: Update efficiency bandwidth for dcn351 [ Upstream commit 7ae37db29a8bc4d3d116a409308dd98fc3a0b1b3 ] Fix 4k240 underflow on dcn351 Acked-by: Rodrigo Siqueira <rodrigo.siqueira@xxxxxxx> Signed-off-by: Fangzhi Zuo <Jerry.Zuo@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/dml2/dml2_translation_helper.c b/drivers/gpu/drm/amd/display/dc/dml2/dml2_translation_helper.c index a20f28a5d2e7b..3af759dca6ebf 100644 --- a/drivers/gpu/drm/amd/display/dc/dml2/dml2_translation_helper.c +++ b/drivers/gpu/drm/amd/display/dc/dml2/dml2_translation_helper.c @@ -233,6 +233,7 @@ void dml2_init_socbb_params(struct dml2_context *dml2, const struct dc *in_dc, s out->round_trip_ping_latency_dcfclk_cycles = 106; out->smn_latency_us = 2; out->dispclk_dppclk_vco_speed_mhz = 3600; + out->pct_ideal_dram_bw_after_urgent_pixel_only = 65.0; break; }