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drm: Define drm_mm_for_each_node_in_range()

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Some clients would like to iterate over every node within a certain
range. Make a nice little macro for them to hide the mixing of the
rbtree search and linear walk.

v2: Blurb

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161123141118.23876-1-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson
2016-11-23 14:11:14 +00:00
committed by Daniel Vetter
parent 6a8a66eda1
commit 522e85dd86
2 changed files with 21 additions and 12 deletions
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11
drivers/gpu/drm/drm_mm.c
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@@ -174,19 +174,12 @@ INTERVAL_TREE_DEFINE(struct drm_mm_node, rb,
START, LAST, static inline, drm_mm_interval_tree)
struct drm_mm_node *
drm_mm_interval_first(struct drm_mm *mm, u64 start, u64 last)
__drm_mm_interval_first(struct drm_mm *mm, u64 start, u64 last)
{
return drm_mm_interval_tree_iter_first(&mm->interval_tree,
start, last);
}
EXPORT_SYMBOL(drm_mm_interval_first);
struct drm_mm_node *
drm_mm_interval_next(struct drm_mm_node *node, u64 start, u64 last)
{
return drm_mm_interval_tree_iter_next(node, start, last);
}
EXPORT_SYMBOL(drm_mm_interval_next);
EXPORT_SYMBOL(__drm_mm_interval_first);
static void drm_mm_interval_tree_add_node(struct drm_mm_node *hole_node,
struct drm_mm_node *node)