drm: Apply "Memory fragmentation from lost alignment blocks"
also for the atomic path by using a common code-path.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/drm_mm.c b/drivers/gpu/drm/drm_mm.c
index a912a0f..3e47869 100644
--- a/drivers/gpu/drm/drm_mm.c
+++ b/drivers/gpu/drm/drm_mm.c
@@ -187,9 +187,10 @@
}
-
-struct drm_mm_node *drm_mm_get_block(struct drm_mm_node *node,
- unsigned long size, unsigned alignment)
+struct drm_mm_node *drm_mm_get_block_generic(struct drm_mm_node *node,
+ unsigned long size,
+ unsigned alignment,
+ int atomic)
{
struct drm_mm_node *align_splitoff = NULL;
@@ -200,7 +201,7 @@
if (tmp) {
align_splitoff =
- drm_mm_split_at_start(node, alignment - tmp, 0);
+ drm_mm_split_at_start(node, alignment - tmp, atomic);
if (unlikely(align_splitoff == NULL))
return NULL;
}
@@ -209,7 +210,7 @@
list_del_init(&node->fl_entry);
node->free = 0;
} else {
- node = drm_mm_split_at_start(node, size, 0);
+ node = drm_mm_split_at_start(node, size, atomic);
}
if (align_splitoff)
@@ -217,42 +218,7 @@
return node;
}
-
-EXPORT_SYMBOL(drm_mm_get_block);
-
-struct drm_mm_node *drm_mm_get_block_atomic(struct drm_mm_node *parent,
- unsigned long size,
- unsigned alignment)
-{
-
- struct drm_mm_node *align_splitoff = NULL;
- struct drm_mm_node *child;
- unsigned tmp = 0;
-
- if (alignment)
- tmp = parent->start % alignment;
-
- if (tmp) {
- align_splitoff =
- drm_mm_split_at_start(parent, alignment - tmp, 1);
- if (unlikely(align_splitoff == NULL))
- return NULL;
- }
-
- if (parent->size == size) {
- list_del_init(&parent->fl_entry);
- parent->free = 0;
- return parent;
- } else {
- child = drm_mm_split_at_start(parent, size, 1);
- }
-
- if (align_splitoff)
- drm_mm_put_block(align_splitoff);
-
- return child;
-}
-EXPORT_SYMBOL(drm_mm_get_block_atomic);
+EXPORT_SYMBOL(drm_mm_get_block_generic);
/*
* Put a block. Merge with the previous and / or next block if they are free.