| 42,23 → 42,58 |
|---|
| #endif |
| |
| struct drm_mm_node { |
| struct list_head fl_entry; |
| struct list_head ml_entry; |
| int free; |
| struct list_head node_list; |
| struct list_head hole_stack; |
| unsigned hole_follows : 1; |
| unsigned scanned_block : 1; |
| unsigned scanned_prev_free : 1; |
| unsigned scanned_next_free : 1; |
| unsigned scanned_preceeds_hole : 1; |
| unsigned allocated : 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 all memory nodes that immediately precede a free hole. */ |
| struct list_head hole_stack; |
| /* head_node.node_list is the list of all memory nodes, ordered |
| * according to the (increasing) start address of the memory node. */ |
| struct drm_mm_node head_node; |
| struct list_head unused_nodes; |
| int num_unused; |
| spinlock_t unused_lock; |
| unsigned int scan_check_range : 1; |
| unsigned scan_alignment; |
| unsigned long scan_size; |
| unsigned long scan_hit_start; |
| unsigned scan_hit_size; |
| unsigned scanned_blocks; |
| unsigned long scan_start; |
| unsigned long scan_end; |
| struct drm_mm_node *prev_scanned_node; |
| }; |
| |
| static inline bool drm_mm_node_allocated(struct drm_mm_node *node) |
| { |
| return node->allocated; |
| } |
| |
| static inline bool drm_mm_initialized(struct drm_mm *mm) |
| { |
| return mm->hole_stack.next; |
| } |
| #define drm_mm_for_each_node(entry, mm) list_for_each_entry(entry, \ |
| &(mm)->head_node.node_list, \ |
| node_list) |
| #define drm_mm_for_each_scanned_node_reverse(entry, n, mm) \ |
| for (entry = (mm)->prev_scanned_node, \ |
| next = entry ? list_entry(entry->node_list.next, \ |
| struct drm_mm_node, node_list) : NULL; \ |
| entry != NULL; entry = next, \ |
| next = entry ? list_entry(entry->node_list.next, \ |
| struct drm_mm_node, node_list) : NULL) \ |
| /* |
| * Basic range manager support (drm_mm.c) |
| */ |
| 105,7 → 140,15 |
|---|
| return drm_mm_get_block_range_generic(parent, size, alignment, |
| start, end, 1); |
| } |
| extern int drm_mm_insert_node(struct drm_mm *mm, struct drm_mm_node *node, |
| unsigned long size, unsigned alignment); |
| extern int drm_mm_insert_node_in_range(struct drm_mm *mm, |
| struct drm_mm_node *node, |
| unsigned long size, unsigned alignment, |
| unsigned long start, unsigned long end); |
| extern void drm_mm_put_block(struct drm_mm_node *cur); |
| extern void drm_mm_remove_node(struct drm_mm_node *node); |
| extern void drm_mm_replace_node(struct drm_mm_node *old, struct drm_mm_node *new); |
| extern struct drm_mm_node *drm_mm_search_free(const struct drm_mm *mm, |
| unsigned long size, |
| unsigned alignment, |
| 121,11 → 164,6 |
|---|
| unsigned long size); |
| extern void drm_mm_takedown(struct drm_mm *mm); |
| extern int drm_mm_clean(struct drm_mm *mm); |
| extern unsigned long drm_mm_tail_space(struct drm_mm *mm); |
| extern int drm_mm_remove_space_from_tail(struct drm_mm *mm, |
| unsigned long size); |
| extern int drm_mm_add_space_to_tail(struct drm_mm *mm, |
| unsigned long size, int atomic); |
| extern int drm_mm_pre_get(struct drm_mm *mm); |
| |
| static inline struct drm_mm *drm_get_mm(struct drm_mm_node *block) |
| 133,6 → 171,15 |
|---|
| return block->mm; |
| } |
| |
| void drm_mm_init_scan(struct drm_mm *mm, unsigned long size, |
| unsigned alignment); |
| void drm_mm_init_scan_with_range(struct drm_mm *mm, unsigned long size, |
| unsigned alignment, |
| unsigned long start, |
| unsigned long end); |
| 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); |