| /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ | |
| /* | |
| * Berkeley style UIO structures - Alan Cox 1994. | |
| * | |
| * This program is free software; you can redistribute it and/or | |
| * modify it under the terms of the GNU General Public License | |
| * as published by the Free Software Foundation; either version | |
| * 2 of the License, or (at your option) any later version. | |
| */ | |
| #ifndef _UAPI__LINUX_UIO_H | |
| #define _UAPI__LINUX_UIO_H | |
| #include <linux/compiler.h> | |
| #include <linux/types.h> | |
| struct iovec | |
| { | |
| void __user *iov_base; /* BSD uses caddr_t (1003.1g requires void *) */ | |
| __kernel_size_t iov_len; /* Must be size_t (1003.1g) */ | |
| }; | |
| struct dmabuf_cmsg { | |
| __u64 frag_offset; /* offset into the dmabuf where the frag starts. | |
| */ | |
| __u32 frag_size; /* size of the frag. */ | |
| __u32 frag_token; /* token representing this frag for | |
| * DEVMEM_DONTNEED. | |
| */ | |
| __u32 dmabuf_id; /* dmabuf id this frag belongs to. */ | |
| __u32 flags; /* Currently unused. Reserved for future | |
| * uses. | |
| */ | |
| }; | |
| struct dmabuf_token { | |
| __u32 token_start; | |
| __u32 token_count; | |
| }; | |
| /* | |
| * UIO_MAXIOV shall be at least 16 1003.1g (5.4.1.1) | |
| */ | |
| #define UIO_FASTIOV 8 | |
| #define UIO_MAXIOV 1024 | |
| #endif /* _UAPI__LINUX_UIO_H */ |