47 lines
1.5 KiB
C
47 lines
1.5 KiB
C
/*
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* linux/arch/unicore32/include/asm/uaccess.h
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*
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* Code specific to PKUnity SoC and UniCore ISA
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*
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* Copyright (C) 2001-2010 GUAN Xue-tao
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef __UNICORE_UACCESS_H__
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#define __UNICORE_UACCESS_H__
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#include <linux/thread_info.h>
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#include <linux/errno.h>
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#include <asm/memory.h>
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#define __copy_from_user __copy_from_user
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#define __copy_to_user __copy_to_user
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#define __strncpy_from_user __strncpy_from_user
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#define __strnlen_user __strnlen_user
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#define __clear_user __clear_user
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#define __kernel_ok (segment_eq(get_fs(), KERNEL_DS))
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#define __user_ok(addr, size) (((size) <= TASK_SIZE) \
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&& ((addr) <= TASK_SIZE - (size)))
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#define __access_ok(addr, size) (__kernel_ok || __user_ok((addr), (size)))
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extern unsigned long __must_check
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__copy_from_user(void *to, const void __user *from, unsigned long n);
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extern unsigned long __must_check
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__copy_to_user(void __user *to, const void *from, unsigned long n);
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extern unsigned long __must_check
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__clear_user(void __user *addr, unsigned long n);
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extern unsigned long __must_check
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__strncpy_from_user(char *to, const char __user *from, unsigned long count);
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extern unsigned long
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__strnlen_user(const char __user *s, long n);
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#include <asm-generic/uaccess.h>
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extern int fixup_exception(struct pt_regs *regs);
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#endif /* __UNICORE_UACCESS_H__ */
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