[mirror_ubuntu-zesty-kernel.git] / arch / arm64 / mm / copypage.c

/*
 * Based on arch/arm/mm/copypage.c
 *
 * Copyright (C) 2002 Deep Blue Solutions Ltd, All Rights Reserved.
 * Copyright (C) 2012 ARM Ltd.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <linux/mm.h>

#include <asm/page.h>
#include <asm/cacheflush.h>

void __cpu_copy_user_page(void *kto, const void *kfrom, unsigned long vaddr)
{
	struct page *page = virt_to_page(kto);
	copy_page(kto, kfrom);
	flush_dcache_page(page);
}
EXPORT_SYMBOL_GPL(__cpu_copy_user_page);

void __cpu_clear_user_page(void *kaddr, unsigned long vaddr)
{
	clear_page(kaddr);
}
EXPORT_SYMBOL_GPL(__cpu_clear_user_page);
Commit	Line	Data
1d18c47c CM	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	{
e6b1185f	27	struct page *page = virt_to_page(kto);
1d18c47c	28	copy_page(kto, kfrom);
e6b1185f	29	flush_dcache_page(page);
1d18c47c	30	}
bec7cedc	31	EXPORT_SYMBOL_GPL(__cpu_copy_user_page);
1d18c47c CM	32
	33	void __cpu_clear_user_page(void *kaddr, unsigned long vaddr)
	34	{
	35	clear_page(kaddr);
	36	}
bec7cedc	37	EXPORT_SYMBOL_GPL(__cpu_clear_user_page);