uaccess_64.h 2.0 KB
Newer Older
1 2
#ifndef __ASM_SH_UACCESS_64_H
#define __ASM_SH_UACCESS_64_H
L
Linus Torvalds 已提交
3 4

/*
5
 * include/asm-sh/uaccess_64.h
L
Linus Torvalds 已提交
6 7 8 9 10 11 12 13 14 15 16 17 18
 *
 * Copyright (C) 2000, 2001  Paolo Alberelli
 * Copyright (C) 2003, 2004  Paul Mundt
 *
 * User space memory access functions
 *
 * Copyright (C) 1999  Niibe Yutaka
 *
 *  Based on:
 *     MIPS implementation version 1.15 by
 *              Copyright (C) 1996, 1997, 1998 by Ralf Baechle
 *     and i386 version.
 *
19 20 21
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
L
Linus Torvalds 已提交
22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78
 */

#define __get_user_size(x,ptr,size,retval)			\
do {								\
	retval = 0;						\
	switch (size) {						\
	case 1:							\
		retval = __get_user_asm_b(x, ptr);		\
		break;						\
	case 2:							\
		retval = __get_user_asm_w(x, ptr);		\
		break;						\
	case 4:							\
		retval = __get_user_asm_l(x, ptr);		\
		break;						\
	case 8:							\
		retval = __get_user_asm_q(x, ptr);		\
		break;						\
	default:						\
		__get_user_unknown();				\
		break;						\
	}							\
} while (0)

extern long __get_user_asm_b(void *, long);
extern long __get_user_asm_w(void *, long);
extern long __get_user_asm_l(void *, long);
extern long __get_user_asm_q(void *, long);
extern void __get_user_unknown(void);

#define __put_user_size(x,ptr,size,retval)			\
do {								\
	retval = 0;						\
	switch (size) {						\
	case 1:							\
		retval = __put_user_asm_b(x, ptr);		\
		break;						\
	case 2:							\
		retval = __put_user_asm_w(x, ptr);		\
		break;						\
	case 4:							\
		retval = __put_user_asm_l(x, ptr);		\
		break;						\
	case 8:							\
		retval = __put_user_asm_q(x, ptr);		\
		break;						\
	default:						\
		__put_user_unknown();				\
	}							\
} while (0)

extern long __put_user_asm_b(void *, long);
extern long __put_user_asm_w(void *, long);
extern long __put_user_asm_l(void *, long);
extern long __put_user_asm_q(void *, long);
extern void __put_user_unknown(void);

79
#endif /* __ASM_SH_UACCESS_64_H */