mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 20:53:53 +08:00
f318dd083c
Frameworks that may want to enumerate CMA heaps (e.g. Ion) will find it useful to have an explicit name attached to each region. Store the name in each CMA structure. Signed-off-by: Laura Abbott <labbott@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
26 lines
534 B
C
26 lines
534 B
C
#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
|