/* SPDX-License-Identifier: GPL-2.0 OR Apache-2.0 */ /* * drivers/staging/android/uapi/ashmem.h * * Copyright 2008 Google Inc. * Author: Robert Love */ #ifndef _UAPI_LINUX_ASHMEM_H #define _UAPI_LINUX_ASHMEM_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) #endif /* _UAPI_LINUX_ASHMEM_H */