summaryrefslogblamecommitdiff
path: root/mm/cma.h
blob: 49861286279d7dfb52b5643b59557aa0f9341d36 (plain) (tree) 
28b24c1fc8c2 ^









26b02a1f9670 ^




f318dd083c81 ^

28b24c1fc8c2 ^





f21838e056eb ^

28b24c1fc8c2 ^





1
2
3
4
5
6
7
8
9

10
11
12
13

14

15
16
17
18
19

20

21
22
23
24
25









                                                                               



                                   
                         




                                           
                                                             




                                                
#ifndef __MM_CMA_H__
#define __MM_CMA_H__

struct cma {
	unsigned long   base_pfn;
	unsigned long   count;
	unsigned long   *bitmap;
	unsigned int order_per_bit; /* Order of pages represented by one bit */
	struct mutex    lock;
#ifdef CONFIG_CMA_DEBUGFS
	struct hlist_head mem_head;
	spinlock_t mem_head_lock;
#endif
	const char *name;
};

extern struct cma cma_areas[MAX_CMA_AREAS];
extern unsigned cma_area_count;

static inline unsigned long cma_bitmap_maxno(struct cma *cma)
{
	return cma->count >> cma->order_per_bit;
}

#endif