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drm/radeon: unlock the ring mutex while waiting for the next fence 

Fixing just another deadlock problem with gpu reset tests.

Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Christian König 2012-05-02 15:11:22 +02:00 committed by Dave Airlie
parent 3368ff0cf4
commit 67e3c78768
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/radeon/radeon_ring.c
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@ -346,7 +346,9 @@ int radeon_ring_alloc(struct radeon_device *rdev, struct radeon_ring *ring, unsi
if (ndw < ring->ring_free_dw) {
break;
}
mutex_unlock(&ring->mutex);
r = radeon_fence_wait_next(rdev, radeon_ring_index(rdev, ring));
mutex_lock(&ring->mutex);
if (r)
return r;
}