1/*
2 *  linux/arch/arm26/lib/copypage.S
3 *
4 *  Copyright (C) 1995-1999 Russell King
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 *
10 *  ASM optimised string functions
11 */
12#include <linux/linkage.h>
13#include <asm/assembler.h>
14#include <asm/asm-offsets.h>
15
16		.text
17		.align	5
18ENTRY(__copy_user_page)
19	stmfd	sp!, {r4, lr}			@	2
20	mov	r2, #PAGE_SZ/64			@	1
21	ldmia	r1!, {r3, r4, ip, lr}		@	4+1
221:	stmia	r0!, {r3, r4, ip, lr}		@	4
23	ldmia	r1!, {r3, r4, ip, lr}		@	4+1
24	stmia	r0!, {r3, r4, ip, lr}		@	4
25	ldmia	r1!, {r3, r4, ip, lr}		@	4+1
26	stmia	r0!, {r3, r4, ip, lr}		@	4
27	ldmia	r1!, {r3, r4, ip, lr}		@	4
28	subs	r2, r2, #1			@	1
29	stmia	r0!, {r3, r4, ip, lr}		@	4
30	ldmneia	r1!, {r3, r4, ip, lr}		@	4
31	bne	1b				@	1
32	LOADREGS(fd, sp!, {r4, pc})		@	3
33
34	.align	5
35ENTRY(__clear_user_page)
36	str	lr, [sp, #-4]!
37	mov	r1, #PAGE_SZ/64			@ 1
38	mov	r2, #0				@ 1
39	mov	r3, #0				@ 1
40	mov	ip, #0				@ 1
41	mov	lr, #0				@ 1
421:	stmia	r0!, {r2, r3, ip, lr}		@ 4
43	stmia	r0!, {r2, r3, ip, lr}		@ 4
44	stmia	r0!, {r2, r3, ip, lr}		@ 4
45	stmia	r0!, {r2, r3, ip, lr}		@ 4
46	subs	r1, r1, #1			@ 1
47	bne	1b				@ 1
48	ldr	pc, [sp], #4
49
50	.section ".init.text", #alloc, #execinstr
51