diff options
| author | Ben Widawsky <ben@bwidawsk.net> | 2013-07-06 01:41:03 +0400 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-07-09 00:04:33 +0400 |
| commit | 338710e7aff3428dc8170a03704a8ae981b58dcd (patch) | |
| tree | 5c95329df3cd1114ddd3f59181f36fc4cbd5ab96 /drivers/gpu/drm/drm_mm.c | |
| parent | b3a070cccb9135f8bec63d9f194ddaa422136fb0 (diff) | |
| download | linux-338710e7aff3428dc8170a03704a8ae981b58dcd.tar.xz | |
drm: Change create block to reserve node
With the previous patch we no longer actually create a node, we simply
find the correct hole and occupy it. This very well could have been
squashed with the last patch, but since I already had David's review, I
figured it's easiest to keep it distinct.
Also update the users in i915. Conveniently this is the only user of the
interface.
CC: David Airlie <airlied@linux.ie>
CC: <dri-devel@lists.freedesktop.org>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Acked-by: David Airlie <airlied@linux.ie>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/drm_mm.c')
| -rw-r--r-- | drivers/gpu/drm/drm_mm.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/drivers/gpu/drm/drm_mm.c b/drivers/gpu/drm/drm_mm.c index 9e8dfbc1955e..52e0ee7f4a6f 100644 --- a/drivers/gpu/drm/drm_mm.c +++ b/drivers/gpu/drm/drm_mm.c @@ -147,27 +147,27 @@ static void drm_mm_insert_helper(struct drm_mm_node *hole_node, } } -int drm_mm_create_block(struct drm_mm *mm, struct drm_mm_node *node, - unsigned long start, unsigned long size) +int drm_mm_reserve_node(struct drm_mm *mm, struct drm_mm_node *node) { struct drm_mm_node *hole; - unsigned long end = start + size; + unsigned long end = node->start + node->size; unsigned long hole_start; unsigned long hole_end; + BUG_ON(node == NULL); + + /* Find the relevant hole to add our node to */ drm_mm_for_each_hole(hole, mm, hole_start, hole_end) { - if (hole_start > start || hole_end < end) + if (hole_start > node->start || hole_end < end) continue; - node->start = start; - node->size = size; node->mm = mm; node->allocated = 1; INIT_LIST_HEAD(&node->hole_stack); list_add(&node->node_list, &hole->node_list); - if (start == hole_start) { + if (node->start == hole_start) { hole->hole_follows = 0; list_del_init(&hole->hole_stack); } @@ -181,10 +181,11 @@ int drm_mm_create_block(struct drm_mm *mm, struct drm_mm_node *node, return 0; } - WARN(1, "no hole found for block 0x%lx + 0x%lx\n", start, size); + WARN(1, "no hole found for node 0x%lx + 0x%lx\n", + node->start, node->size); return -ENOSPC; } -EXPORT_SYMBOL(drm_mm_create_block); +EXPORT_SYMBOL(drm_mm_reserve_node); struct drm_mm_node *drm_mm_get_block_generic(struct drm_mm_node *hole_node, unsigned long size, |