diff options
Diffstat (limited to 'include/drm/drm_mm.h')
| -rw-r--r-- | include/drm/drm_mm.h | 27 |
1 files changed, 21 insertions, 6 deletions
diff --git a/include/drm/drm_mm.h b/include/drm/drm_mm.h index 4c10be39a43b..bf01531193d5 100644 --- a/include/drm/drm_mm.h +++ b/include/drm/drm_mm.h @@ -42,21 +42,31 @@ #endif struct drm_mm_node { - struct list_head fl_entry; - struct list_head ml_entry; - int free; + struct list_head free_stack; + struct list_head node_list; + unsigned free : 1; + unsigned scanned_block : 1; + unsigned scanned_prev_free : 1; + unsigned scanned_next_free : 1; unsigned long start; unsigned long size; struct drm_mm *mm; - void *private; }; struct drm_mm { - struct list_head fl_entry; - struct list_head ml_entry; + /* List of free memory blocks, most recently freed ordered. */ + struct list_head free_stack; + /* List of all memory nodes, ordered according to the (increasing) start + * address of the memory node. */ + struct list_head node_list; struct list_head unused_nodes; int num_unused; spinlock_t unused_lock; + unsigned scan_alignment; + unsigned long scan_size; + unsigned long scan_hit_start; + unsigned scan_hit_size; + unsigned scanned_blocks; }; /* @@ -133,6 +143,11 @@ static inline struct drm_mm *drm_get_mm(struct drm_mm_node *block) return block->mm; } +void drm_mm_init_scan(struct drm_mm *mm, unsigned long size, + unsigned alignment); +int drm_mm_scan_add_block(struct drm_mm_node *node); +int drm_mm_scan_remove_block(struct drm_mm_node *node); + extern void drm_mm_debug_table(struct drm_mm *mm, const char *prefix); #ifdef CONFIG_DEBUG_FS int drm_mm_dump_table(struct seq_file *m, struct drm_mm *mm); |