blob: d15221beaa161ab555cb6b481268651d56570a4f [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * arch/sh/mm/pg-nommu.c
3 *
4 * clear_page()/copy_page() implementation for MMUless SH.
5 *
6 * Copyright (C) 2003 Paul Mundt
7 *
8 * This file is subject to the terms and conditions of the GNU General Public
9 * License. See the file "COPYING" in the main directory of this archive
10 * for more details.
11 */
12#include <linux/init.h>
13#include <linux/kernel.h>
14#include <linux/string.h>
15#include <asm/page.h>
16
Yoshinori Satoe96636c2006-09-27 17:21:02 +090017void copy_page_nommu(void *to, void *from)
Linus Torvalds1da177e2005-04-16 15:20:36 -070018{
19 memcpy(to, from, PAGE_SIZE);
20}
21
Yoshinori Satoe96636c2006-09-27 17:21:02 +090022void clear_page_nommu(void *to)
Linus Torvalds1da177e2005-04-16 15:20:36 -070023{
24 memset(to, 0, PAGE_SIZE);
25}
26
Yoshinori Satoe96636c2006-09-27 17:21:02 +090027__kernel_size_t __copy_user(void *to, const void *from, __kernel_size_t n)
Linus Torvalds1da177e2005-04-16 15:20:36 -070028{
Yoshinori Satoe96636c2006-09-27 17:21:02 +090029 memcpy(to, from, n);
Linus Torvalds1da177e2005-04-16 15:20:36 -070030 return 0;
31}
32
Yoshinori Satoe96636c2006-09-27 17:21:02 +090033__kernel_size_t __clear_user(void *to, __kernel_size_t n)
34{
35 memset(to, 0, n);
36 return 0;
37}