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Linux kernel mirror (for testing)
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1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __ASM_SH_UACCESS_64_H
3#define __ASM_SH_UACCESS_64_H
4
5/*
6 * include/asm-sh/uaccess_64.h
7 *
8 * Copyright (C) 2000, 2001 Paolo Alberelli
9 * Copyright (C) 2003, 2004 Paul Mundt
10 *
11 * User space memory access functions
12 *
13 * Copyright (C) 1999 Niibe Yutaka
14 *
15 * Based on:
16 * MIPS implementation version 1.15 by
17 * Copyright (C) 1996, 1997, 1998 by Ralf Baechle
18 * and i386 version.
19 */
20
21#define __get_user_size(x,ptr,size,retval) \
22do { \
23 retval = 0; \
24 x = 0; \
25 switch (size) { \
26 case 1: \
27 retval = __get_user_asm_b((void *)&x, \
28 (long)ptr); \
29 break; \
30 case 2: \
31 retval = __get_user_asm_w((void *)&x, \
32 (long)ptr); \
33 break; \
34 case 4: \
35 retval = __get_user_asm_l((void *)&x, \
36 (long)ptr); \
37 break; \
38 case 8: \
39 retval = __get_user_asm_q((void *)&x, \
40 (long)ptr); \
41 break; \
42 default: \
43 __get_user_unknown(); \
44 break; \
45 } \
46} while (0)
47
48extern long __get_user_asm_b(void *, long);
49extern long __get_user_asm_w(void *, long);
50extern long __get_user_asm_l(void *, long);
51extern long __get_user_asm_q(void *, long);
52extern void __get_user_unknown(void);
53
54#define __put_user_size(x,ptr,size,retval) \
55do { \
56 retval = 0; \
57 switch (size) { \
58 case 1: \
59 retval = __put_user_asm_b((void *)&x, \
60 (__force long)ptr); \
61 break; \
62 case 2: \
63 retval = __put_user_asm_w((void *)&x, \
64 (__force long)ptr); \
65 break; \
66 case 4: \
67 retval = __put_user_asm_l((void *)&x, \
68 (__force long)ptr); \
69 break; \
70 case 8: \
71 retval = __put_user_asm_q((void *)&x, \
72 (__force long)ptr); \
73 break; \
74 default: \
75 __put_user_unknown(); \
76 } \
77} while (0)
78
79extern long __put_user_asm_b(void *, long);
80extern long __put_user_asm_w(void *, long);
81extern long __put_user_asm_l(void *, long);
82extern long __put_user_asm_q(void *, long);
83extern void __put_user_unknown(void);
84
85#endif /* __ASM_SH_UACCESS_64_H */