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/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * linux/arch/unicore32/include/asm/uaccess.h
 *
 * Code specific to PKUnity SoC and UniCore ISA
 *
 * Copyright (C) 2001-2010 GUAN Xue-tao
 */
#ifndef __UNICORE_UACCESS_H__
#define __UNICORE_UACCESS_H__

#include <asm/memory.h>

#define __strncpy_from_user	__strncpy_from_user
#define __strnlen_user		__strnlen_user
#define __clear_user		__clear_user

#define __kernel_ok		(uaccess_kernel())
#define __user_ok(addr, size)	(((size) <= TASK_SIZE)			\
				&& ((addr) <= TASK_SIZE - (size)))
#define __access_ok(addr, size)	(__kernel_ok || __user_ok((addr), (size)))

extern unsigned long __must_check
raw_copy_from_user(void *to, const void __user *from, unsigned long n);
extern unsigned long __must_check
raw_copy_to_user(void __user *to, const void *from, unsigned long n);
extern unsigned long __must_check
__clear_user(void __user *addr, unsigned long n);
extern unsigned long __must_check
__strncpy_from_user(char *to, const char __user *from, unsigned long count);
extern unsigned long
__strnlen_user(const char __user *s, long n);
#define INLINE_COPY_FROM_USER
#define INLINE_COPY_TO_USER

#include <asm-generic/uaccess.h>

#endif /* __UNICORE_UACCESS_H__ */