1 files changed, 5 insertions, 2 deletions

diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c
index 4834c463c38b..15b86a94949d 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_util.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_util.c
@@ -350,10 +350,13 @@ int ttm_bo_move_memcpy(struct ttm_buffer_object *bo,
                 goto out2;
 
         /*
-         * Move nonexistent data. NOP.
+         * Don't move nonexistent data. Clear destination instead.
          */
-        if (old_iomap == NULL && ttm == NULL)
+        if (old_iomap == NULL &&
+            (ttm == NULL || ttm->state == tt_unpopulated)) {
+                memset_io(new_iomap, 0, new_mem->num_pages*PAGE_SIZE);
                 goto out2;
+        }
 
         /*
          * TTM might be null for moves within the same region.