1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * linux/arch/unicore32/include/asm/uaccess.h
5 * Code specific to PKUnity SoC and UniCore ISA
7 * Copyright (C) 2001-2010 GUAN Xue-tao
9 #ifndef __UNICORE_UACCESS_H__
10 #define __UNICORE_UACCESS_H__
12 #include <asm/memory.h>
14 #define __strncpy_from_user __strncpy_from_user
15 #define __strnlen_user __strnlen_user
16 #define __clear_user __clear_user
18 #define __kernel_ok (uaccess_kernel())
19 #define __user_ok(addr, size) (((size) <= TASK_SIZE) \
20 && ((addr) <= TASK_SIZE - (size)))
21 #define __access_ok(addr, size) (__kernel_ok || __user_ok((addr), (size)))
23 extern unsigned long __must_check
24 raw_copy_from_user(void *to, const void __user *from, unsigned long n);
25 extern unsigned long __must_check
26 raw_copy_to_user(void __user *to, const void *from, unsigned long n);
27 extern unsigned long __must_check
28 __clear_user(void __user *addr, unsigned long n);
29 extern unsigned long __must_check
30 __strncpy_from_user(char *to, const char __user *from, unsigned long count);
32 __strnlen_user(const char __user *s, long n);
33 #define INLINE_COPY_FROM_USER
34 #define INLINE_COPY_TO_USER
36 #include <asm-generic/uaccess.h>
38 #endif /* __UNICORE_UACCESS_H__ */