This is a note to let you know that I've just added the patch titled
drm/amd/display: Correct DML calculation to follow HW SPEC
to the 6.3-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-correct-dml-calculation-to-follow-hw.patch
and it can be found in the queue-6.3 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 51fe079d3f591aee9f21affe465520f99389391b
Author: Paul Hsieh <Paul.Hsieh@xxxxxxx>
Date: Wed Mar 22 17:46:31 2023 +0800
drm/amd/display: Correct DML calculation to follow HW SPEC
[ Upstream commit 385c3e4c29e1d4ce8f68687a8c84621e4c0e0416 ]
[Why]
In 2560x1600@240p eDP panel, driver use lowest voltage level
to play 1080p video cause underflow. According to HW SPEC,
the senario should use high voltage level.
[How]
ChromaPre value is zero when bandwidth validation.
Correct ChromaPre calculation.
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@xxxxxxx>
Reviewed-by: Jun Lei <Jun.Lei@xxxxxxx>
Acked-by: Qingqing Zhuo <qingqing.zhuo@xxxxxxx>
Signed-off-by: Paul Hsieh <Paul.Hsieh@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/dcn30/display_mode_vba_30.c b/drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c
index 899105da04335..111eb978520ac 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c
@@ -4865,7 +4865,7 @@ void dml30_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_l
v->DETBufferSizeCThisState[k],
&v->UrgentBurstFactorCursorPre[k],
&v->UrgentBurstFactorLumaPre[k],
- &v->UrgentBurstFactorChroma[k],
+ &v->UrgentBurstFactorChromaPre[k],
&v->NoUrgentLatencyHidingPre[k]);
}
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c b/drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c
index 536a636245950..bd674dc30df33 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c
@@ -5191,7 +5191,7 @@ void dml31_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_l
v->DETBufferSizeCThisState[k],
&v->UrgentBurstFactorCursorPre[k],
&v->UrgentBurstFactorLumaPre[k],
- &v->UrgentBurstFactorChroma[k],
+ &v->UrgentBurstFactorChromaPre[k],
&v->NotUrgentLatencyHidingPre[k]);
}
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn314/display_mode_vba_314.c b/drivers/gpu/drm/amd/display/dc/dml/dcn314/display_mode_vba_314.c
index daf3193701909..7eb2173b7691e 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn314/display_mode_vba_314.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn314/display_mode_vba_314.c
@@ -5288,7 +5288,7 @@ void dml314_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_
v->DETBufferSizeCThisState[k],
&v->UrgentBurstFactorCursorPre[k],
&v->UrgentBurstFactorLumaPre[k],
- &v->UrgentBurstFactorChroma[k],
+ &v->UrgentBurstFactorChromaPre[k],
&v->NotUrgentLatencyHidingPre[k]);
}
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_32.c b/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_32.c
index 02d99b6bfe5ec..705748a942952 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_32.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_32.c
@@ -3353,7 +3353,7 @@ void dml32_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_l
/* Output */
&mode_lib->vba.UrgentBurstFactorCursorPre[k],
&mode_lib->vba.UrgentBurstFactorLumaPre[k],
- &mode_lib->vba.UrgentBurstFactorChroma[k],
+ &mode_lib->vba.UrgentBurstFactorChromaPre[k],
&mode_lib->vba.NotUrgentLatencyHidingPre[k]);
}
