2015-04-14 16:44:57 -06:00
|
|
|
#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;
|
2015-04-14 16:44:59 -06:00
|
|
|
#ifdef CONFIG_CMA_DEBUGFS
|
|
|
|
struct hlist_head mem_head;
|
|
|
|
spinlock_t mem_head_lock;
|
|
|
|
#endif
|
2017-04-18 12:27:03 -06:00
|
|
|
const char *name;
|
2015-04-14 16:44:57 -06:00
|
|
|
};
|
|
|
|
|
|
|
|
extern struct cma cma_areas[MAX_CMA_AREAS];
|
|
|
|
extern unsigned cma_area_count;
|
|
|
|
|
2015-08-14 16:35:21 -06:00
|
|
|
static inline unsigned long cma_bitmap_maxno(struct cma *cma)
|
2015-04-14 16:44:57 -06:00
|
|
|
{
|
|
|
|
return cma->count >> cma->order_per_bit;
|
|
|
|
}
|
|
|
|
|
|
|
|
#endif
|