xref: /openbmc/linux/arch/arm64/mm/copypage.c (revision e23feb16)
1 /*
2  * Based on arch/arm/mm/copypage.c
3  *
4  * Copyright (C) 2002 Deep Blue Solutions Ltd, All Rights Reserved.
5  * Copyright (C) 2012 ARM Ltd.
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License version 2 as
9  * published by the Free Software Foundation.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
18  */
19 
20 #include <linux/mm.h>
21 
22 #include <asm/page.h>
23 #include <asm/cacheflush.h>
24 
25 void __cpu_copy_user_page(void *kto, const void *kfrom, unsigned long vaddr)
26 {
27 	copy_page(kto, kfrom);
28 	__flush_dcache_area(kto, PAGE_SIZE);
29 }
30 
31 void __cpu_clear_user_page(void *kaddr, unsigned long vaddr)
32 {
33 	clear_page(kaddr);
34 }
35