This is a note to let you know that I've just added the patch titled
drm/amd/display: Disable HUBP/DPP PG on DCN314 for now
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-disable-hubp-dpp-pg-on-dcn314-for-no.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.
commit 1c8f28a2dc09727f756a3765ed9c2b6be82031c9
Author: Nicholas Kazlauskas <nicholas.kazlauskas@xxxxxxx>
Date: Thu Feb 2 15:15:51 2023 -0500
drm/amd/display: Disable HUBP/DPP PG on DCN314 for now
[ Upstream commit b7c67f72408b11b922f23f06c7df0f6743a2e89d ]
[Why]
The DMCUB implementation required to workaround corruption is
not currently stable and may cause intermittent corruption or hangs.
[How]
Disable PG until the sequence is stable.
Reviewed-by: Hansen Dsouza <hansen.dsouza@xxxxxxx>
Acked-by: Qingqing Zhuo <qingqing.zhuo@xxxxxxx>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@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/dcn314/dcn314_resource.c b/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c
index 5985ce8df4e08..9918bccd6defb 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c
@@ -888,6 +888,8 @@ static const struct dc_debug_options debug_defaults_drv = {
.force_abm_enable = false,
.timing_trace = false,
.clock_trace = true,
+ .disable_dpp_power_gate = true,
+ .disable_hubp_power_gate = true,
.disable_pplib_clock_request = false,
.pipe_split_policy = MPC_SPLIT_DYNAMIC,
.force_single_disp_pipe_split = false,
