blob: 1c14468145c6d96135fcc0fbe91ec6c842c6eed3 [file] [log] [blame]
#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
const char *name;
struct hlist_head mem_head;
spinlock_t mem_head_lock;
#endif
};
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