1#ifndef __MM_CMA_H__
 2#define __MM_CMA_H__
 3
 4struct cma {
 5	unsigned long   base_pfn;
 6	unsigned long   count;
 7	unsigned long   *bitmap;
 8	unsigned int order_per_bit; /* Order of pages represented by one bit */
 9	struct mutex    lock;
10#ifdef CONFIG_CMA_DEBUGFS
11	struct hlist_head mem_head;
12	spinlock_t mem_head_lock;
13#endif
14};
15
16extern struct cma cma_areas[MAX_CMA_AREAS];
17extern unsigned cma_area_count;
18
19static inline unsigned long cma_bitmap_maxno(struct cma *cma)
20{
21	return cma->count >> cma->order_per_bit;
22}
23
24#endif