1 files changed, 7 insertions, 6 deletions

diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h
index cd22ab4b495c..491146170522 100644
--- a/include/drm/ttm/ttm_bo_api.h
+++ b/include/drm/ttm/ttm_bo_api.h
@@ -155,6 +155,7 @@ struct ttm_buffer_object {
          * Members constant at init.
          */
 
+        struct ttm_bo_global *glob;
         struct ttm_bo_device *bdev;
         unsigned long buffer_start;
         enum ttm_bo_type type;
@@ -245,14 +246,15 @@ struct ttm_buffer_object {
  * premapped region.
  */
 
+#define TTM_BO_MAP_IOMEM_MASK 0x80
 struct ttm_bo_kmap_obj {
         void *virtual;
         struct page *page;
         enum {
-                ttm_bo_map_iomap,
-                ttm_bo_map_vmap,
-                ttm_bo_map_kmap,
-                ttm_bo_map_premapped,
+                ttm_bo_map_iomap        = 1 | TTM_BO_MAP_IOMEM_MASK,
+                ttm_bo_map_vmap         = 2,
+                ttm_bo_map_kmap         = 3,
+                ttm_bo_map_premapped    = 4 | TTM_BO_MAP_IOMEM_MASK,
         } bo_kmap_type;
 };
 
@@ -522,8 +524,7 @@ extern int ttm_bo_evict_mm(struct ttm_bo_device *bdev, unsigned mem_type);
 static inline void *ttm_kmap_obj_virtual(struct ttm_bo_kmap_obj *map,
                                          bool *is_iomem)
 {
-        *is_iomem = (map->bo_kmap_type == ttm_bo_map_iomap ||
-                     map->bo_kmap_type == ttm_bo_map_premapped);
+        *is_iomem = !!(map->bo_kmap_type & TTM_BO_MAP_IOMEM_MASK);
         return map->virtual;
 }