diff options
| author | Jerome Glisse <jglisse@redhat.com> | 2012-12-17 10:29:06 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2012-12-19 17:44:05 -0500 |
| commit | 76903b96adbfbb38b049765add21e02e44c387a5 (patch) | |
| tree | 2dadaf5ec55c26195fb8c33cc5a4300f86bf01fc /drivers/gpu/drm/radeon/radeon_fence.c | |
| parent | 0953e76e91f4b6206cef50bd680696dc6bf1ef99 (diff) | |
drm/radeon: don't leave fence blocked process on failed GPU reset
Force all fence to signal if GPU reset failed so no process get stuck
on waiting fence.
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_fence.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_fence.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_fence.c b/drivers/gpu/drm/radeon/radeon_fence.c index 410a975a8eec..a9b0fa5608eb 100644 --- a/drivers/gpu/drm/radeon/radeon_fence.c +++ b/drivers/gpu/drm/radeon/radeon_fence.c @@ -868,6 +868,25 @@ void radeon_fence_driver_fini(struct radeon_device *rdev) mutex_unlock(&rdev->ring_lock); } +/** + * radeon_fence_driver_force_completion - force all fence waiter to complete + * + * @rdev: radeon device pointer + * + * In case of GPU reset failure make sure no process keep waiting on fence + * that will never complete. + */ +void radeon_fence_driver_force_completion(struct radeon_device *rdev) +{ + int ring; + + for (ring = 0; ring < RADEON_NUM_RINGS; ring++) { + if (!rdev->fence_drv[ring].initialized) + continue; + radeon_fence_write(rdev, rdev->fence_drv[ring].sync_seq[ring], ring); + } +} + /* * Fence debugfs |