linux/arch/sh/mm/pg-nommu.c

39 lines
766 B
C

/*
* arch/sh/mm/pg-nommu.c
*
* clear_page()/copy_page() implementation for MMUless SH.
*
* Copyright (C) 2003 Paul Mundt
*
* 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.
*/
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <asm/page.h>
#include <asm/uaccess.h>
void copy_page(void *to, void *from)
{
memcpy(to, from, PAGE_SIZE);
}
void clear_page(void *to)
{
memset(to, 0, PAGE_SIZE);
}
__kernel_size_t __copy_user(void *to, const void *from, __kernel_size_t n)
{
memcpy(to, from, n);
return 0;
}
__kernel_size_t __clear_user(void *to, __kernel_size_t n)
{
memset(to, 0, n);
return 0;
}