diff options
Diffstat (limited to 'include/drm/drm_mm.h')
| -rw-r--r-- | include/drm/drm_mm.h | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/include/drm/drm_mm.h b/include/drm/drm_mm.h index 0b8371795aeb..0cc1b78c9ec2 100644 --- a/include/drm/drm_mm.h +++ b/include/drm/drm_mm.h @@ -179,6 +179,8 @@ static inline u64 drm_mm_hole_node_end(struct drm_mm_node *hole_node) return __drm_mm_hole_node_end(hole_node); } +#define __drm_mm_nodes(mm) (&(mm)->head_node.node_list) + /** * drm_mm_for_each_node - iterator to walk over all allocated nodes * @entry: drm_mm_node structure to assign to in each iteration step @@ -187,9 +189,20 @@ static inline u64 drm_mm_hole_node_end(struct drm_mm_node *hole_node) * This iterator walks over all nodes in the range allocator. It is implemented * with list_for_each, so not save against removal of elements. */ -#define drm_mm_for_each_node(entry, mm) list_for_each_entry(entry, \ - &(mm)->head_node.node_list, \ - node_list) +#define drm_mm_for_each_node(entry, mm) \ + list_for_each_entry(entry, __drm_mm_nodes(mm), node_list) + +/** + * drm_mm_for_each_node_safe - iterator to walk over all allocated nodes + * @entry: drm_mm_node structure to assign to in each iteration step + * @next: drm_mm_node structure to store the next step + * @mm: drm_mm allocator to walk + * + * This iterator walks over all nodes in the range allocator. It is implemented + * with list_for_each_safe, so save against removal of elements. + */ +#define drm_mm_for_each_node_safe(entry, next, mm) \ + list_for_each_entry_safe(entry, next, __drm_mm_nodes(mm), node_list) #define __drm_mm_for_each_hole(entry, mm, hole_start, hole_end, backwards) \ for (entry = list_entry((backwards) ? (mm)->hole_stack.prev : (mm)->hole_stack.next, struct drm_mm_node, hole_stack); \ |