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drm/radeon: force fence completion only on problematic rings (v2)

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Instead of resetting all fence numbers, only reset the
number of the problematic ring. Split out from a patch
from Maarten Lankhorst <maarten.lankhorst@canonical.com>

v2 (agd5f): rebase build fix

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König
2014-08-27 15:21:56 +02:00
committed by Alex Deucher
parent f0d970b4fd
commit eb98c70990
4 changed files with 8 additions and 15 deletions
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12
drivers/gpu/drm/radeon/radeon_fence.c
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@@ -758,7 +758,7 @@ void radeon_fence_driver_fini(struct radeon_device *rdev)
r = radeon_fence_wait_empty(rdev, ring);
if (r) {
/* no need to trigger GPU reset as we are unloading */
radeon_fence_driver_force_completion(rdev);
radeon_fence_driver_force_completion(rdev, ring);
}
wake_up_all(&rdev->fence_queue);
radeon_scratch_free(rdev, rdev->fence_drv[ring].scratch_reg);
@@ -771,19 +771,15 @@ void radeon_fence_driver_fini(struct radeon_device *rdev)
* radeon_fence_driver_force_completion - force all fence waiter to complete
*
* @rdev: radeon device pointer
* @ring: the ring to complete
*
* 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)
void radeon_fence_driver_force_completion(struct radeon_device *rdev, int ring)
{
int ring;
for (ring = 0; ring < RADEON_NUM_RINGS; ring++) {
if (!rdev->fence_drv[ring].initialized)
continue;
if (rdev->fence_drv[ring].initialized)
radeon_fence_write(rdev, rdev->fence_drv[ring].sync_seq[ring], ring);
}
}