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 --- drivers/gpu/drm/drm_mm.c | 19 ++++++++++--------- drivers/gpu/drm/i915/i915_gem_gtt.c | 8 ++++---- drivers/gpu/drm/i915/i915_gem_stolen.c | 14 ++++++++------ include/drm/drm_mm.h | 5 +---- 4 files changed, 23 insertions(+), 23 deletions(-)
diff --git a/drivers/gpu/drm/drm_mm.c b/drivers/gpu/drm/drm_mm.c index 94d48c5..fe304f9 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, diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 88180a5..afba7e5 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -640,10 +640,10 @@ void i915_gem_setup_global_gtt(struct drm_device *dev, obj->gtt_offset); continue; } - ret = drm_mm_create_block(&dev_priv->mm.gtt_space, - obj->gtt_space, - obj->gtt_offset, - obj->base.size); + obj->gtt_space->start = obj->gtt_offset; + obj->gtt_space->size = obj->base.size; + ret = drm_mm_reserve_node(&dev_priv->mm.gtt_space, + obj->gtt_space); if (ret) { DRM_DEBUG_KMS("Reservation failed\n"); kfree(obj->gtt_space); diff --git a/drivers/gpu/drm/i915/i915_gem_stolen.c b/drivers/gpu/drm/i915/i915_gem_stolen.c index c1b726c..95c3836 100644 --- a/drivers/gpu/drm/i915/i915_gem_stolen.c +++ b/drivers/gpu/drm/i915/i915_gem_stolen.c @@ -319,7 +319,6 @@ i915_gem_object_create_stolen(struct drm_device *dev, u32 size) struct drm_i915_private *dev_priv = dev->dev_private; struct drm_i915_gem_object *obj; struct drm_mm_node *stolen; - int ret;
if (!drm_mm_initialized(&dev_priv->mm.stolen)) return NULL; @@ -351,6 +350,7 @@ i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev, struct drm_i915_private *dev_priv = dev->dev_private; struct drm_i915_gem_object *obj; struct drm_mm_node *stolen; + int ret;
if (!drm_mm_initialized(&dev_priv->mm.stolen)) return NULL; @@ -369,8 +369,9 @@ i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev, if (!stolen) return NULL;
- ret = drm_mm_create_block(&dev_priv->mm.stolen, stolen, stolen_offset, - size); + stolen->start = stolen_offset; + stolen->size = size; + ret = drm_mm_reserve_node(&dev_priv->mm.stolen, stolen); if (ret) { DRM_DEBUG_KMS("failed to allocate stolen space\n"); kfree(stolen); @@ -400,9 +401,10 @@ i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev, goto unref_out; }
- ret = drm_mm_create_block(&dev_priv->mm.gtt_space, - obj->gtt_space, - gtt_offset, size); + obj->gtt_space->start = gtt_offset; + obj->gtt_space->size = size; + ret = drm_mm_reserve_node(&dev_priv->mm.gtt_space, + obj->gtt_space); if (ret) { DRM_DEBUG_KMS("failed to allocate stolen GTT space\n"); goto free_out; diff --git a/include/drm/drm_mm.h b/include/drm/drm_mm.h index 6ac218d..b87d05e 100644 --- a/include/drm/drm_mm.h +++ b/include/drm/drm_mm.h @@ -138,10 +138,7 @@ static inline unsigned long drm_mm_hole_node_end(struct drm_mm_node *hole_node) /* * Basic range manager support (drm_mm.c) */ -extern int drm_mm_create_block(struct drm_mm *mm, - struct drm_mm_node *node, - unsigned long start, - unsigned long size); +extern int drm_mm_reserve_node(struct drm_mm *mm, struct drm_mm_node *node); extern struct drm_mm_node *drm_mm_get_block_generic(struct drm_mm_node *node, unsigned long size, unsigned alignment,