1 /* SPDX-License-Identifier: GPL-2.0+ WITH Linu 1
2 /*
3 * Berkeley style UIO structures -
4 *
5 * This program is free software;
6 * modify it under the terms of t
7 * as published by the Free Softw
8 * 2 of the License, or (at your
9 */
10 #ifndef _UAPI__LINUX_UIO_H
11 #define _UAPI__LINUX_UIO_H
12
13 #include <linux/compiler.h>
14 #include <linux/types.h>
15
16
17 struct iovec
18 {
19 void __user *iov_base; /* BSD uses ca
20 __kernel_size_t iov_len; /* Must be si
21 };
22
23 struct dmabuf_cmsg {
24 __u64 frag_offset; /* offset into
25 */
26 __u32 frag_size; /* size of the
27 __u32 frag_token; /* token repre
28 * DEVMEM_DONT
29 */
30 __u32 dmabuf_id; /* dmabuf id t
31 __u32 flags; /* Currently u
32 * uses.
33 */
34 };
35
36 struct dmabuf_token {
37 __u32 token_start;
38 __u32 token_count;
39 };
40
41 /*
42 * UIO_MAXIOV shall be at least 16 1003.1
43 */
44
45 #define UIO_FASTIOV 8
46 #define UIO_MAXIOV 1024
47
48
49 #endif /* _UAPI__LINUX_UIO_H */
50
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