diff options
Diffstat (limited to 'drivers/gpu/drm/ttm/ttm_bo.c')
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_bo.c | 36 |
1 files changed, 0 insertions, 36 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index 8d91b0428af1..5df596fb0280 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -161,7 +161,6 @@ static void ttm_bo_release_list(struct kref *list_kref) dma_fence_put(bo->moving); if (!ttm_bo_uses_embedded_gem_object(bo)) dma_resv_fini(&bo->base._resv); - mutex_destroy(&bo->wu_mutex); bo->destroy(bo); ttm_mem_global_free(&ttm_mem_glob, acc_size); } @@ -1299,7 +1298,6 @@ int ttm_bo_init_reserved(struct ttm_bo_device *bdev, INIT_LIST_HEAD(&bo->ddestroy); INIT_LIST_HEAD(&bo->swap); INIT_LIST_HEAD(&bo->io_reserve_lru); - mutex_init(&bo->wu_mutex); bo->bdev = bdev; bo->type = type; bo->num_pages = num_pages; @@ -1903,37 +1901,3 @@ void ttm_bo_swapout_all(struct ttm_bo_device *bdev) while (ttm_bo_swapout(&ttm_bo_glob, &ctx) == 0); } EXPORT_SYMBOL(ttm_bo_swapout_all); - -/** - * ttm_bo_wait_unreserved - interruptible wait for a buffer object to become - * unreserved - * - * @bo: Pointer to buffer - */ -int ttm_bo_wait_unreserved(struct ttm_buffer_object *bo) -{ - int ret; - - /* - * In the absense of a wait_unlocked API, - * Use the bo::wu_mutex to avoid triggering livelocks due to - * concurrent use of this function. Note that this use of - * bo::wu_mutex can go away if we change locking order to - * mmap_sem -> bo::reserve. - */ - ret = mutex_lock_interruptible(&bo->wu_mutex); - if (unlikely(ret != 0)) - return -ERESTARTSYS; - if (!dma_resv_is_locked(bo->base.resv)) - goto out_unlock; - ret = dma_resv_lock_interruptible(bo->base.resv, NULL); - if (ret == -EINTR) - ret = -ERESTARTSYS; - if (unlikely(ret != 0)) - goto out_unlock; - dma_resv_unlock(bo->base.resv); - -out_unlock: - mutex_unlock(&bo->wu_mutex); - return ret; -} |