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path: root/drivers/gpu/drm/radeon/radeon_ring.c
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Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_ring.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_ring.c66
1 files changed, 43 insertions, 23 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_ring.c b/drivers/gpu/drm/radeon/radeon_ring.c
index f6e1e8d4d98..261e98a276d 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);
}
@@ -258,31 +260,41 @@ void radeon_ring_free_size(struct radeon_device *rdev)
}
}
-int radeon_ring_lock(struct radeon_device *rdev, unsigned ndw)
+int radeon_ring_alloc(struct radeon_device *rdev, unsigned ndw)
{
int r;
/* Align requested size with padding so unlock_commit can
* pad safely */
ndw = (ndw + rdev->cp.align_mask) & ~rdev->cp.align_mask;
- mutex_lock(&rdev->cp.mutex);
while (ndw > (rdev->cp.ring_free_dw - 1)) {
radeon_ring_free_size(rdev);
if (ndw < rdev->cp.ring_free_dw) {
break;
}
r = radeon_fence_wait_next(rdev);
- if (r) {
- mutex_unlock(&rdev->cp.mutex);
+ if (r)
return r;
- }
}
rdev->cp.count_dw = ndw;
rdev->cp.wptr_old = rdev->cp.wptr;
return 0;
}
-void radeon_ring_unlock_commit(struct radeon_device *rdev)
+int radeon_ring_lock(struct radeon_device *rdev, unsigned ndw)
+{
+ int r;
+
+ mutex_lock(&rdev->cp.mutex);
+ r = radeon_ring_alloc(rdev, ndw);
+ if (r) {
+ mutex_unlock(&rdev->cp.mutex);
+ return r;
+ }
+ return 0;
+}
+
+void radeon_ring_commit(struct radeon_device *rdev)
{
unsigned count_dw_pad;
unsigned i;
@@ -295,6 +307,11 @@ void radeon_ring_unlock_commit(struct radeon_device *rdev)
}
DRM_MEMORYBARRIER();
radeon_cp_commit(rdev);
+}
+
+void radeon_ring_unlock_commit(struct radeon_device *rdev)
+{
+ radeon_ring_commit(rdev);
mutex_unlock(&rdev->cp.mutex);
}
@@ -344,20 +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);
}