This is a note to let you know that I've just added the patch titled
drm/amd/display: Reduce sdp bw after urgent to 90%
to the 6.1-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-reduce-sdp-bw-after-urgent-to-90.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From e1a600208286c197c2696e51fc313e49889315bd Mon Sep 17 00:00:00 2001
From: Alvin Lee <alvin.lee2@xxxxxxx>
Date: Fri, 19 May 2023 11:38:15 -0400
Subject: drm/amd/display: Reduce sdp bw after urgent to 90%
From: Alvin Lee <alvin.lee2@xxxxxxx>
commit e1a600208286c197c2696e51fc313e49889315bd upstream.
[Description]
Reduce expected SDP bandwidth due to poor QoS and
arbitration issues on high bandwidth configs
Cc: Mario Limonciello <mario.limonciello@xxxxxxx>
Cc: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Acked-by: Stylon Wang <stylon.wang@xxxxxxx>
Signed-off-by: Alvin Lee <alvin.lee2@xxxxxxx>
Reviewed-by: Nevenko Stupar <Nevenko.Stupar@xxxxxxx>
Tested-by: Daniel Wheeler <daniel.wheeler@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
@@ -137,7 +137,7 @@ struct _vcs_dpi_soc_bounding_box_st dcn3
.urgent_out_of_order_return_per_channel_pixel_only_bytes = 4096,
.urgent_out_of_order_return_per_channel_pixel_and_vm_bytes = 4096,
.urgent_out_of_order_return_per_channel_vm_only_bytes = 4096,
- .pct_ideal_sdp_bw_after_urgent = 100.0,
+ .pct_ideal_sdp_bw_after_urgent = 90.0,
.pct_ideal_fabric_bw_after_urgent = 67.0,
.pct_ideal_dram_sdp_bw_after_urgent_pixel_only = 20.0,
.pct_ideal_dram_sdp_bw_after_urgent_pixel_and_vm = 60.0, // N/A, for now keep as is until DML implemented
Patches currently in stable-queue which might be from alvin.lee2@xxxxxxx are
queue-6.1/drm-amd-display-reduce-sdp-bw-after-urgent-to-90.patch
