43 lines
1.4 KiB
C
43 lines
1.4 KiB
C
#ifndef _UAPI_LINUX_ASHMEM_H
|
|
#define _UAPI_LINUX_ASHMEM_H
|
|
|
|
#include <linux/limits.h>
|
|
#include <linux/ioctl.h>
|
|
#include <linux/types.h>
|
|
|
|
#define ASHMEM_NAME_LEN 256
|
|
|
|
#define ASHMEM_NAME_DEF "dev/ashmem"
|
|
|
|
/* Return values from ASHMEM_PIN: Was the mapping purged while unpinned? */
|
|
#define ASHMEM_NOT_PURGED 0
|
|
#define ASHMEM_WAS_PURGED 1
|
|
|
|
/* Return values from ASHMEM_GET_PIN_STATUS: Is the mapping pinned? */
|
|
#define ASHMEM_IS_UNPINNED 0
|
|
#define ASHMEM_IS_PINNED 1
|
|
|
|
struct ashmem_pin {
|
|
__u32 offset; /* offset into region, in bytes, page-aligned */
|
|
__u32 len; /* length forward from offset, in bytes, page-aligned */
|
|
};
|
|
|
|
#define __ASHMEMIOC 0x77
|
|
|
|
#define ASHMEM_SET_NAME _IOW(__ASHMEMIOC, 1, char[ASHMEM_NAME_LEN])
|
|
#define ASHMEM_GET_NAME _IOR(__ASHMEMIOC, 2, char[ASHMEM_NAME_LEN])
|
|
#define ASHMEM_SET_SIZE _IOW(__ASHMEMIOC, 3, size_t)
|
|
#define ASHMEM_GET_SIZE _IO(__ASHMEMIOC, 4)
|
|
#define ASHMEM_SET_PROT_MASK _IOW(__ASHMEMIOC, 5, unsigned long)
|
|
#define ASHMEM_GET_PROT_MASK _IO(__ASHMEMIOC, 6)
|
|
#define ASHMEM_PIN _IOW(__ASHMEMIOC, 7, struct ashmem_pin)
|
|
#define ASHMEM_UNPIN _IOW(__ASHMEMIOC, 8, struct ashmem_pin)
|
|
#define ASHMEM_GET_PIN_STATUS _IO(__ASHMEMIOC, 9)
|
|
#define ASHMEM_PURGE_ALL_CACHES _IO(__ASHMEMIOC, 10)
|
|
#define ASHMEM_CACHE_FLUSH_RANGE _IO(__ASHMEMIOC, 11)
|
|
#define ASHMEM_CACHE_CLEAN_RANGE _IO(__ASHMEMIOC, 12)
|
|
#define ASHMEM_CACHE_INV_RANGE _IO(__ASHMEMIOC, 13)
|
|
|
|
|
|
#endif /* _UAPI_LINUX_ASHMEM_H */
|