summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/ttm
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/gpu/drm/ttm')
-rw-r--r--drivers/gpu/drm/ttm/ttm_bo.c42
1 files changed, 11 insertions, 31 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 9a479885bf59..6059771d506e 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -811,49 +811,29 @@ static int ttm_mem_evict_first(struct ttm_bo_device *bdev,
struct ttm_bo_global *glob = bdev->glob;
struct ttm_mem_type_manager *man = &bdev->man[mem_type];
struct ttm_buffer_object *bo;
- int ret, put_count = 0;
+ int ret = -EBUSY, put_count;
-retry:
spin_lock(&glob->lru_lock);
- if (list_empty(&man->lru)) {
+ list_for_each_entry(bo, &man->lru, lru) {
+ ret = ttm_bo_reserve_locked(bo, false, true, false, 0);
+ if (!ret)
+ break;
+ }
+
+ if (ret) {
spin_unlock(&glob->lru_lock);
- return -EBUSY;
+ return ret;
}
- bo = list_first_entry(&man->lru, struct ttm_buffer_object, lru);
kref_get(&bo->list_kref);
if (!list_empty(&bo->ddestroy)) {
- ret = ttm_bo_reserve_locked(bo, interruptible, no_wait_reserve, false, 0);
- if (!ret)
- ret = ttm_bo_cleanup_refs_and_unlock(bo, interruptible,
- no_wait_gpu);
- else
- spin_unlock(&glob->lru_lock);
-
+ ret = ttm_bo_cleanup_refs_and_unlock(bo, interruptible,
+ no_wait_gpu);
kref_put(&bo->list_kref, ttm_bo_release_list);
-
return ret;
}
- ret = ttm_bo_reserve_locked(bo, false, true, false, 0);
-
- if (unlikely(ret == -EBUSY)) {
- spin_unlock(&glob->lru_lock);
- if (likely(!no_wait_reserve))
- ret = ttm_bo_wait_unreserved(bo, interruptible);
-
- kref_put(&bo->list_kref, ttm_bo_release_list);
-
- /**
- * We *need* to retry after releasing the lru lock.
- */
-
- if (unlikely(ret != 0))
- return ret;
- goto retry;
- }
-
put_count = ttm_bo_del_from_lru(bo);
spin_unlock(&glob->lru_lock);