android/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/amd/display: fix the system hang while disable PSR

Browse Source 
[ Upstream commit ea2062dd1f0384ae1b136d333ee4ced15bedae38 ]

[Why]
When the PSR enabled. If you try to adjust the timing parameters,
it may cause system hang. Because the timing mismatch with the
DMCUB settings.

[How]
Disable the PSR before adjusting timing parameters.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Acked-by: Stylon Wang <stylon.wang@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Reviewed-by: Wayne Lin <Wayne.Lin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Tom Chung 2023-05-29 18:00:09 +08:00 committed by Greg Kroah-Hartman
parent ef0d5feb32
commit b1b42fff8a
1 changed files with 6 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
View File

@ -7430,6 +7430,12 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
if (acrtc_state->abm_level != dm_old_crtc_state->abm_level)
bundle->stream_update.abm_level = &acrtc_state->abm_level;
mutex_lock(&dm->dc_lock);
if ((acrtc_state->update_type > UPDATE_TYPE_FAST) &&
acrtc_state->stream->link->psr_settings.psr_allow_active)
amdgpu_dm_psr_disable(acrtc_state->stream);
mutex_unlock(&dm->dc_lock);
/*
* If FreeSync state on the stream has changed then we need to
* re-adjust the min/max bounds now that DC doesn't handle this
@ -7444,9 +7450,6 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
spin_unlock_irqrestore(&pcrtc->dev->event_lock, flags);
}
mutex_lock(&dm->dc_lock);
if ((acrtc_state->update_type > UPDATE_TYPE_FAST) &&
acrtc_state->stream->link->psr_settings.psr_allow_active)
amdgpu_dm_psr_disable(acrtc_state->stream);
dc_commit_updates_for_stream(dm->dc,
bundle->surface_updates,