drm: update core memory manager from git drm tree
Remove the memory manager parameter from the put_block function, as this
makes the client code a lot cleaner. Prepare buffer manager for lock and
unlock calls.
Fix buggy aligned allocations.
Remove the stupid root_node field from the core memory manager.
Support multi-page buffer offset alignments
Add improved alignment functionality to the core memory manager.
This makes an allocated block actually align itself and returns any
wasted space to the manager.
Signed-off-by: Dave Airlie <airlied@linux.ie>
diff --git a/drivers/char/drm/drmP.h b/drivers/char/drm/drmP.h
index 63042ca..85d99e2 100644
--- a/drivers/char/drm/drmP.h
+++ b/drivers/char/drm/drmP.h
@@ -532,11 +532,13 @@
int free;
unsigned long start;
unsigned long size;
+ struct drm_mm *mm;
void *private;
} drm_mm_node_t;
typedef struct drm_mm {
- drm_mm_node_t root_node;
+ struct list_head fl_entry;
+ struct list_head ml_entry;
} drm_mm_t;
/**
@@ -1050,11 +1052,15 @@
extern drm_mm_node_t *drm_mm_get_block(drm_mm_node_t * parent,
unsigned long size,
unsigned alignment);
-extern void drm_mm_put_block(drm_mm_t *mm, drm_mm_node_t *cur);
+void drm_mm_put_block(drm_mm_node_t * cur);
extern drm_mm_node_t *drm_mm_search_free(const drm_mm_t *mm, unsigned long size,
unsigned alignment, int best_match);
extern int drm_mm_init(drm_mm_t *mm, unsigned long start, unsigned long size);
extern void drm_mm_takedown(drm_mm_t *mm);
+extern int drm_mm_clean(drm_mm_t *mm);
+extern unsigned long drm_mm_tail_space(drm_mm_t *mm);
+extern int drm_mm_remove_space_from_tail(drm_mm_t *mm, unsigned long size);
+extern int drm_mm_add_space_to_tail(drm_mm_t *mm, unsigned long size);
extern void drm_core_ioremap(struct drm_map *map, struct drm_device *dev);
extern void drm_core_ioremapfree(struct drm_map *map, struct drm_device *dev);