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Diffstat (limited to 'linux-core/drm_bo.c')
-rw-r--r--linux-core/drm_bo.c109
1 files changed, 48 insertions, 61 deletions
diff --git a/linux-core/drm_bo.c b/linux-core/drm_bo.c
index f1ca0b44..ab257825 100644
--- a/linux-core/drm_bo.c
+++ b/linux-core/drm_bo.c
@@ -269,31 +269,25 @@ static int drm_bo_handle_move_mem(drm_buffer_object_t * bo,
int drm_bo_wait(drm_buffer_object_t * bo, int lazy, int ignore_signals,
int no_wait)
{
-
- drm_fence_object_t *fence = bo->fence;
int ret;
DRM_ASSERT_LOCKED(&bo->mutex);
- if (fence) {
- drm_device_t *dev = bo->dev;
- if (drm_fence_object_signaled(dev, fence, bo->fence_type, 0)) {
- drm_fence_usage_deref_unlocked(dev, fence);
- bo->fence = NULL;
+ if (bo->fence) {
+ if (drm_fence_object_signaled(bo->fence, bo->fence_type, 0)) {
+ drm_fence_usage_deref_unlocked(&bo->fence);
return 0;
}
if (no_wait) {
return -EBUSY;
}
ret =
- drm_fence_object_wait(dev, fence, lazy, ignore_signals,
+ drm_fence_object_wait(bo->fence, lazy, ignore_signals,
bo->fence_type);
if (ret)
return ret;
- drm_fence_usage_deref_unlocked(dev, fence);
- bo->fence = NULL;
-
+ drm_fence_usage_deref_unlocked(&bo->fence);
}
return 0;
}
@@ -321,10 +315,8 @@ static int drm_bo_expire_fence(drm_buffer_object_t * bo, int allow_errors)
"Evicting buffer.\n");
}
}
- if (bo->fence) {
- drm_fence_usage_deref_unlocked(dev, bo->fence);
- bo->fence = NULL;
- }
+ if (bo->fence)
+ drm_fence_usage_deref_unlocked(&bo->fence);
}
return 0;
}
@@ -348,11 +340,9 @@ static void drm_bo_cleanup_refs(drm_buffer_object_t * bo, int remove_all)
DRM_FLAG_MASKED(bo->priv_flags, 0, _DRM_BO_FLAG_UNFENCED);
- if (bo->fence && drm_fence_object_signaled(dev, bo->fence,
- bo->fence_type, 0)) {
- drm_fence_usage_deref_unlocked(dev, bo->fence);
- bo->fence = NULL;
- }
+ if (bo->fence && drm_fence_object_signaled(bo->fence,
+ bo->fence_type, 0))
+ drm_fence_usage_deref_unlocked(&bo->fence);
if (bo->fence && remove_all)
(void)drm_bo_expire_fence(bo, 0);
@@ -383,7 +373,7 @@ static void drm_bo_cleanup_refs(drm_buffer_object_t * bo, int remove_all)
}
if (list_empty(&bo->ddestroy)) {
- drm_fence_object_flush(dev, bo->fence, bo->fence_type);
+ drm_fence_object_flush(bo->fence, bo->fence_type);
list_add_tail(&bo->ddestroy, &bm->ddestroy);
schedule_delayed_work(&bm->wq,
((DRM_HZ / 100) < 1) ? 1 : DRM_HZ / 100);
@@ -503,12 +493,15 @@ static void drm_bo_delayed_workqueue(struct work_struct *work)
mutex_unlock(&dev->struct_mutex);
}
-void drm_bo_usage_deref_locked(drm_buffer_object_t * bo)
+void drm_bo_usage_deref_locked(drm_buffer_object_t ** bo)
{
- DRM_ASSERT_LOCKED(&bo->dev->struct_mutex);
+ struct drm_buffer_object *tmp_bo = *bo;
+ bo = NULL;
- if (atomic_dec_and_test(&bo->usage)) {
- drm_bo_destroy_locked(bo);
+ DRM_ASSERT_LOCKED(&tmp_bo->dev->struct_mutex);
+
+ if (atomic_dec_and_test(&tmp_bo->usage)) {
+ drm_bo_destroy_locked(tmp_bo);
}
}
@@ -520,17 +513,19 @@ static void drm_bo_base_deref_locked(drm_file_t * priv, drm_user_object_t * uo)
DRM_ASSERT_LOCKED(&bo->dev->struct_mutex);
drm_bo_takedown_vm_locked(bo);
- drm_bo_usage_deref_locked(bo);
+ drm_bo_usage_deref_locked(&bo);
}
-static void drm_bo_usage_deref_unlocked(drm_buffer_object_t * bo)
+static void drm_bo_usage_deref_unlocked(drm_buffer_object_t ** bo)
{
- drm_device_t *dev = bo->dev;
+ struct drm_buffer_object *tmp_bo = *bo;
+ drm_device_t *dev = tmp_bo->dev;
- if (atomic_dec_and_test(&bo->usage)) {
+ *bo = NULL;
+ if (atomic_dec_and_test(&tmp_bo->usage)) {
mutex_lock(&dev->struct_mutex);
- if (atomic_read(&bo->usage) == 0)
- drm_bo_destroy_locked(bo);
+ if (atomic_read(&tmp_bo->usage) == 0)
+ drm_bo_destroy_locked(tmp_bo);
mutex_unlock(&dev->struct_mutex);
}
}
@@ -616,16 +611,15 @@ int drm_fence_buffer_objects(drm_file_t * priv,
if (entry->priv_flags & _DRM_BO_FLAG_UNFENCED) {
count++;
if (entry->fence)
- drm_fence_usage_deref_locked(dev, entry->fence);
- entry->fence = fence;
- atomic_inc(&fence->usage);
+ drm_fence_usage_deref_locked(&entry->fence);
+ entry->fence = drm_fence_reference_locked(fence);
DRM_FLAG_MASKED(entry->priv_flags, 0,
_DRM_BO_FLAG_UNFENCED);
DRM_WAKEUP(&entry->event_queue);
drm_bo_add_to_lru(entry);
}
mutex_unlock(&entry->mutex);
- drm_bo_usage_deref_locked(entry);
+ drm_bo_usage_deref_locked(&entry);
l = f_list.next;
}
DRM_DEBUG("Fenced %d buffers\n", count);
@@ -742,7 +736,7 @@ static int drm_bo_mem_force_space(drm_device_t * dev,
ret = drm_bo_evict(entry, mem_type, no_wait);
mutex_unlock(&entry->mutex);
- drm_bo_usage_deref_unlocked(entry);
+ drm_bo_usage_deref_unlocked(&entry);
if (ret)
return ret;
mutex_lock(&dev->struct_mutex);
@@ -962,10 +956,8 @@ static int drm_bo_quick_busy(drm_buffer_object_t * bo)
BUG_ON(bo->priv_flags & _DRM_BO_FLAG_UNFENCED);
if (fence) {
- drm_device_t *dev = bo->dev;
- if (drm_fence_object_signaled(dev, fence, bo->fence_type, 0)) {
- drm_fence_usage_deref_unlocked(dev, fence);
- bo->fence = NULL;
+ if (drm_fence_object_signaled(fence, bo->fence_type, 0)) {
+ drm_fence_usage_deref_unlocked(&bo->fence);
return 0;
}
return 1;
@@ -984,16 +976,13 @@ static int drm_bo_busy(drm_buffer_object_t * bo)
BUG_ON(bo->priv_flags & _DRM_BO_FLAG_UNFENCED);
if (fence) {
- drm_device_t *dev = bo->dev;
- if (drm_fence_object_signaled(dev, fence, bo->fence_type, 0)) {
- drm_fence_usage_deref_unlocked(dev, fence);
- bo->fence = NULL;
+ if (drm_fence_object_signaled(fence, bo->fence_type, 0)) {
+ drm_fence_usage_deref_unlocked(&bo->fence);
return 0;
}
- drm_fence_object_flush(dev, fence, DRM_FENCE_TYPE_EXE);
- if (drm_fence_object_signaled(dev, fence, bo->fence_type, 0)) {
- drm_fence_usage_deref_unlocked(dev, fence);
- bo->fence = NULL;
+ drm_fence_object_flush(fence, DRM_FENCE_TYPE_EXE);
+ if (drm_fence_object_signaled(fence, bo->fence_type, 0)) {
+ drm_fence_usage_deref_unlocked(&bo->fence);
return 0;
}
return 1;
@@ -1190,7 +1179,7 @@ static int drm_buffer_object_map(drm_file_t * priv, uint32_t handle,
drm_bo_fill_rep_arg(bo, rep);
out:
mutex_unlock(&bo->mutex);
- drm_bo_usage_deref_unlocked(bo);
+ drm_bo_usage_deref_unlocked(&bo);
return ret;
}
@@ -1216,7 +1205,7 @@ static int drm_buffer_object_unmap(drm_file_t * priv, uint32_t handle)
}
drm_remove_ref_object(priv, ro);
- drm_bo_usage_deref_locked(bo);
+ drm_bo_usage_deref_locked(&bo);
out:
mutex_unlock(&dev->struct_mutex);
return ret;
@@ -1512,7 +1501,7 @@ static int drm_bo_handle_validate(drm_file_t * priv, uint32_t handle,
mutex_unlock(&bo->mutex);
- drm_bo_usage_deref_unlocked(bo);
+ drm_bo_usage_deref_unlocked(&bo);
return ret;
}
@@ -1534,7 +1523,7 @@ static int drm_bo_handle_info(drm_file_t * priv, uint32_t handle,
(void)drm_bo_busy(bo);
drm_bo_fill_rep_arg(bo, rep);
mutex_unlock(&bo->mutex);
- drm_bo_usage_deref_unlocked(bo);
+ drm_bo_usage_deref_unlocked(&bo);
return 0;
}
@@ -1566,7 +1555,7 @@ static int drm_bo_handle_wait(drm_file_t * priv, uint32_t handle,
out:
mutex_unlock(&bo->mutex);
- drm_bo_usage_deref_unlocked(bo);
+ drm_bo_usage_deref_unlocked(&bo);
return ret;
}
@@ -1651,7 +1640,7 @@ int drm_buffer_object_create(drm_device_t *dev,
out_err:
mutex_unlock(&bo->mutex);
- drm_bo_usage_deref_unlocked(bo);
+ drm_bo_usage_deref_unlocked(&bo);
return ret;
}
@@ -1728,7 +1717,7 @@ int drm_bo_ioctl(DRM_IOCTL_ARGS)
mask &
DRM_BO_FLAG_SHAREABLE);
if (rep.ret)
- drm_bo_usage_deref_unlocked(entry);
+ drm_bo_usage_deref_unlocked(&entry);
if (rep.ret)
break;
@@ -1957,7 +1946,7 @@ restart:
allow_errors);
mutex_lock(&dev->struct_mutex);
- drm_bo_usage_deref_locked(entry);
+ drm_bo_usage_deref_locked(&entry);
if (ret)
return ret;
@@ -1967,10 +1956,8 @@ restart:
do_restart = ((next->prev != list) && (next->prev != prev));
- if (nentry != NULL && do_restart) {
- drm_bo_usage_deref_locked(nentry);
- nentry = NULL;
- }
+ if (nentry != NULL && do_restart)
+ drm_bo_usage_deref_locked(&nentry);
if (do_restart)
goto restart;
@@ -2365,7 +2352,7 @@ static void drm_bo_takedown_vm_locked(drm_buffer_object_t * bo)
drm_ctl_free(map, sizeof(*map), DRM_MEM_BUFOBJ);
list->map = NULL;
list->user_token = 0ULL;
- drm_bo_usage_deref_locked(bo);
+ drm_bo_usage_deref_locked(&bo);
}
static int drm_bo_setup_vm_locked(drm_buffer_object_t * bo)
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-13 07:16:58 +0000