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| author | Andrey Grodzovsky <andrey.grodzovsky@amd.com> | 2019-02-13 13:53:45 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-02-13 17:51:17 -0500 |
| commit | f7c8930d9e8b188caa53705883373c49f95fd284 (patch) | |
| tree | 8414f227240ce71320372ae92cdc423c1307a6ed /drivers/gpu/drm/amd/powerplay/smumgr/smumgr.c | |
| parent | c0d9271ecbd891cdeb0fad1edcdd99ee717a655f (diff) | |
drm/amd/display: Fix deadlock with display during hanged ring recovery.
When ring hang happens amdgpu_dm_commit_planes during flip is holding
the BO reserved and then stack waiting for fences to signal in
reservation_object_wait_timeout_rcu (which won't signal because there
was a hnag). Then when we try to shutdown display block during reset
recovery from drm_atomic_helper_suspend we also try to reserve the BO
from dm_plane_helper_cleanup_fb ending in deadlock.
Also remove useless WARN_ON
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/powerplay/smumgr/smumgr.c')
0 files changed, 0 insertions, 0 deletions