#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 |