[deliverable/linux.git] / arch / avr32 / mm / copy_page.S

/*
 * Copyright (C) 2004-2006 Atmel Corporation
 *
 * 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.
 */
#include <linux/linkage.h>
#include <asm/page.h>

/*
 * copy_page
 *
 * r12		to (P1 address)
 * r11		from (P1 address)
 * r8-r10	scratch
 */
	.text
	.global copy_page
copy_page:
	sub	r10, r11, -(1 << PAGE_SHIFT)
	/* pref	r11[0] */
1:	/* pref	r11[8] */
	ld.d	r8, r11++
	st.d	r12++, r8
	cp	r11, r10
	brlo	1b
	mov	pc, lr
Commit	Line	Data
5f97f7f9 HS	1	/*
	2	* Copyright (C) 2004-2006 Atmel Corporation
	3	*
	4	* This program is free software; you can redistribute it and/or modify
	5	* it under the terms of the GNU General Public License version 2 as
	6	* published by the Free Software Foundation.
	7	*/
	8	#include <linux/linkage.h>
	9	#include <asm/page.h>
	10
	11	/*
	12	* copy_page
	13	*
	14	* r12 to (P1 address)
	15	* r11 from (P1 address)
	16	* r8-r10 scratch
	17	*/
	18	.text
	19	.global copy_page
	20	copy_page:
	21	sub r10, r11, -(1 << PAGE_SHIFT)
	22	/* pref r11[0] */
	23	1: /* pref r11[8] */
	24	ld.d r8, r11++
	25	st.d r12++, r8
	26	cp r11, r10
	27	brlo 1b
	28	mov pc, lr