summaryrefslogtreecommitdiff
path: root/include/drm/drm_mm.h
diff options
context:
space:
mode:
authorChris Wilson <chris@chris-wilson.co.uk>2016-12-22 08:36:05 +0000
committerDaniel Vetter <daniel.vetter@ffwll.ch>2016-12-27 12:28:44 +0100
commit2bc98c86517b08304b5008f427b751c08659b100 (patch)
tree3e0b3013d7fa0411878e42f87e7a7b252e2b5c8a /include/drm/drm_mm.h
parent0bfd4a01a6605849d7c282c37503292469fab0be (diff)
drm: Use drm_mm_nodes() as shorthand for the list of nodes under struct drm_mm
Fairly commonly we want to inspect the node list on the struct drm_mm, which is buried within an embedded node. Bring it to the surface with a bit of syntatic sugar. Note this was intended to be split from commit ad579002c8ec ("drm: Add drm_mm_for_each_node_safe()") before being applied, but my timing sucks. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20161222083641.2691-3-chris@chris-wilson.co.uk
Diffstat (limited to 'include/drm/drm_mm.h')
-rw-r--r--include/drm/drm_mm.h18
1 files changed, 15 insertions, 3 deletions
diff --git a/include/drm/drm_mm.h b/include/drm/drm_mm.h
index 5c7f15875b6a..f6a68ed5ecaf 100644
--- a/include/drm/drm_mm.h
+++ b/include/drm/drm_mm.h
@@ -180,7 +180,19 @@ static inline u64 drm_mm_hole_node_end(const 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_nodes - list of nodes under the drm_mm range manager
+ * @mm: the struct drm_mm range manger
+ *
+ * As the drm_mm range manager hides its node_list deep with its
+ * structure, extracting it looks painful and repetitive. This is
+ * not expected to be used outside of the drm_mm_for_each_node()
+ * macros and similar internal functions.
+ *
+ * Returns:
+ * The node list, may be empty.
+ */
+#define drm_mm_nodes(mm) (&(mm)->head_node.node_list)
/**
* drm_mm_for_each_node - iterator to walk over all allocated nodes
@@ -191,7 +203,7 @@ static inline u64 drm_mm_hole_node_end(const struct drm_mm_node *hole_node)
* with list_for_each, so not save against removal of elements.
*/
#define drm_mm_for_each_node(entry, mm) \
- list_for_each_entry(entry, __drm_mm_nodes(mm), node_list)
+ list_for_each_entry(entry, drm_mm_nodes(mm), node_list)
/**
* drm_mm_for_each_node_safe - iterator to walk over all allocated nodes
@@ -203,7 +215,7 @@ static inline u64 drm_mm_hole_node_end(const struct drm_mm_node *hole_node)
* 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)
+ 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); \