This is a note to let you know that I've just added the patch titled
drm/amd/display: disconnect MPCC only on OTG change
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-disconnect-mpcc-only-on-otg-change.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 7304ee979b6b6422f41a1312391a5e505fc29ccd Mon Sep 17 00:00:00 2001
From: Ayush Gupta <ayugupta@xxxxxxx>
Date: Thu, 2 Mar 2023 09:58:05 -0500
Subject: drm/amd/display: disconnect MPCC only on OTG change
From: Ayush Gupta <ayugupta@xxxxxxx>
commit 7304ee979b6b6422f41a1312391a5e505fc29ccd upstream.
[Why]
Framedrops are observed while playing Vp9 and Av1 10 bit
video on 8k resolution using VSR while playback controls
are disappeared/appeared
[How]
Now ODM 2 to 1 is disabled for 5k or greater resolutions on VSR.
Cc: stable@xxxxxxxxxxxxxxx
Cc: Mario Limonciello <mario.limonciello@xxxxxxx>
Reviewed-by: Alvin Lee <Alvin.Lee2@xxxxxxx>
Acked-by: Qingqing Zhuo <qingqing.zhuo@xxxxxxx>
Signed-off-by: Ayush Gupta <ayugupta@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/dcn32/dcn32_resource.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c
@@ -1883,6 +1883,7 @@ int dcn32_populate_dml_pipes_from_contex
bool subvp_in_use = false;
uint8_t is_pipe_split_expected[MAX_PIPES] = {0};
struct dc_crtc_timing *timing;
+ bool vsr_odm_support = false;
dcn20_populate_dml_pipes_from_context(dc, context, pipes, fast_validate);
@@ -1900,12 +1901,15 @@ int dcn32_populate_dml_pipes_from_contex
timing = &pipe->stream->timing;
pipes[pipe_cnt].pipe.dest.odm_combine_policy = dm_odm_combine_policy_dal;
+ vsr_odm_support = (res_ctx->pipe_ctx[i].stream->src.width >= 5120 &&
+ res_ctx->pipe_ctx[i].stream->src.width > res_ctx->pipe_ctx[i].stream->dst.width);
if (context->stream_count == 1 &&
context->stream_status[0].plane_count == 1 &&
!dc_is_hdmi_signal(res_ctx->pipe_ctx[i].stream->signal) &&
is_h_timing_divisible_by_2(res_ctx->pipe_ctx[i].stream) &&
pipe->stream->timing.pix_clk_100hz * 100 > DCN3_2_VMIN_DISPCLK_HZ &&
- dc->debug.enable_single_display_2to1_odm_policy) {
+ dc->debug.enable_single_display_2to1_odm_policy &&
+ !vsr_odm_support) { //excluding 2to1 ODM combine on >= 5k vsr
pipes[pipe_cnt].pipe.dest.odm_combine_policy = dm_odm_combine_policy_2to1;
}
pipe_cnt++;
Patches currently in stable-queue which might be from ayugupta@xxxxxxx are
queue-6.1/drm-amd-display-disconnect-mpcc-only-on-otg-change.patch
