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| author | Alex Deucher <alexdeucher@gmail.com> | 2010-05-06 11:02:24 -0400 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2010-05-18 18:21:48 +1000 |
| commit | ca2af92311eee95820f3b48c35045e5f56bc1477 (patch) | |
| tree | 2c343da47e494d2d04dff9601fa789cef02289e5 | |
| parent | 01434b4bfba17626fe93a602e540f0004694d9df (diff) | |
| download | linux-stable-ca2af92311eee95820f3b48c35045e5f56bc1477.tar.gz linux-stable-ca2af92311eee95820f3b48c35045e5f56bc1477.tar.bz2 linux-stable-ca2af92311eee95820f3b48c35045e5f56bc1477.zip | |
drm/radeon/kms: fix lock ordering in ring, ib handling
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_ring.c | 39 |
1 files changed, 22 insertions, 17 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_ring.c b/drivers/gpu/drm/radeon/radeon_ring.c index 6cc42591abd8..261e98a276db 100644 --- a/drivers/gpu/drm/radeon/radeon_ring.c +++ b/drivers/gpu/drm/radeon/radeon_ring.c @@ -219,24 +219,26 @@ int radeon_ib_pool_init(struct radeon_device *rdev) void radeon_ib_pool_fini(struct radeon_device *rdev) { int r; + struct radeon_bo *robj; if (!rdev->ib_pool.ready) { return; } mutex_lock(&rdev->ib_pool.mutex); radeon_ib_bogus_cleanup(rdev); + robj = rdev->ib_pool.robj; + rdev->ib_pool.robj = NULL; + mutex_unlock(&rdev->ib_pool.mutex); - if (rdev->ib_pool.robj) { - r = radeon_bo_reserve(rdev->ib_pool.robj, false); + if (robj) { + r = radeon_bo_reserve(robj, false); if (likely(r == 0)) { - radeon_bo_kunmap(rdev->ib_pool.robj); - radeon_bo_unpin(rdev->ib_pool.robj); - radeon_bo_unreserve(rdev->ib_pool.robj); + radeon_bo_kunmap(robj); + radeon_bo_unpin(robj); + radeon_bo_unreserve(robj); } - radeon_bo_unref(&rdev->ib_pool.robj); - rdev->ib_pool.robj = NULL; + radeon_bo_unref(&robj); } - mutex_unlock(&rdev->ib_pool.mutex); } @@ -359,20 +361,23 @@ int radeon_ring_init(struct radeon_device *rdev, unsigned ring_size) void radeon_ring_fini(struct radeon_device *rdev) { int r; + struct radeon_bo *ring_obj; mutex_lock(&rdev->cp.mutex); - if (rdev->cp.ring_obj) { - r = radeon_bo_reserve(rdev->cp.ring_obj, false); + ring_obj = rdev->cp.ring_obj; + rdev->cp.ring = NULL; + rdev->cp.ring_obj = NULL; + mutex_unlock(&rdev->cp.mutex); + + if (ring_obj) { + r = radeon_bo_reserve(ring_obj, false); if (likely(r == 0)) { - radeon_bo_kunmap(rdev->cp.ring_obj); - radeon_bo_unpin(rdev->cp.ring_obj); - radeon_bo_unreserve(rdev->cp.ring_obj); + radeon_bo_kunmap(ring_obj); + radeon_bo_unpin(ring_obj); + radeon_bo_unreserve(ring_obj); } - radeon_bo_unref(&rdev->cp.ring_obj); - rdev->cp.ring = NULL; - rdev->cp.ring_obj = NULL; + radeon_bo_unref(&ring_obj); } - mutex_unlock(&rdev->cp.mutex); } |