1 /* SPDX-License-Identifier: GPL-2.0 */
5 #include <linux/debugfs.h>
6 #include <linux/kobject.h>
14 unsigned long base_pfn;
16 unsigned long *bitmap;
17 unsigned int order_per_bit; /* Order of pages represented by one bit */
19 #ifdef CONFIG_CMA_DEBUGFS
20 struct hlist_head mem_head;
21 spinlock_t mem_head_lock;
22 struct debugfs_u32_array dfs_bitmap;
24 char name[CMA_MAX_NAME];
25 #ifdef CONFIG_CMA_SYSFS
26 /* the number of CMA page successful allocations */
27 atomic64_t nr_pages_succeeded;
28 /* the number of CMA page allocation failures */
29 atomic64_t nr_pages_failed;
30 /* kobject requires dynamic object */
31 struct cma_kobject *cma_kobj;
35 extern struct cma cma_areas[MAX_CMA_AREAS];
36 extern unsigned cma_area_count;
38 static inline unsigned long cma_bitmap_maxno(struct cma *cma)
40 return cma->count >> cma->order_per_bit;
43 #ifdef CONFIG_CMA_SYSFS
44 void cma_sysfs_account_success_pages(struct cma *cma, unsigned long nr_pages);
45 void cma_sysfs_account_fail_pages(struct cma *cma, unsigned long nr_pages);
47 static inline void cma_sysfs_account_success_pages(struct cma *cma,
48 unsigned long nr_pages) {};
49 static inline void cma_sysfs_account_fail_pages(struct cma *cma,
50 unsigned long nr_pages) {};