1 /* SPDX-License-Identifier: GPL-2.0 */
5 #include <linux/debugfs.h>
7 #define CMA_MAX_NAME 64
10 unsigned long base_pfn
;
12 unsigned long *bitmap
;
13 unsigned int order_per_bit
; /* Order of pages represented by one bit */
15 #ifdef CONFIG_CMA_DEBUGFS
16 struct hlist_head mem_head
;
17 spinlock_t mem_head_lock
;
18 struct debugfs_u32_array dfs_bitmap
;
20 char name
[CMA_MAX_NAME
];
23 extern struct cma cma_areas
[MAX_CMA_AREAS
];
24 extern unsigned cma_area_count
;
26 static inline unsigned long cma_bitmap_maxno(struct cma
*cma
)
28 return cma
->count
>> cma
->order_per_bit
;