summaryrefslogtreecommitdiff
path: root/arch/alpha/lib/clear_page.S
blob: 263d7393c0e7a83fd15e570bb171bc726b55afbc (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
/*
 * arch/alpha/lib/clear_page.S
 *
 * Zero an entire page.
 */
#include <asm/export.h>
	.text
	.align 4
	.global clear_page
	.ent clear_page
clear_page:
	.prologue 0

	lda	$0,128
	nop
	unop
	nop

1:	stq	$31,0($16)
	stq	$31,8($16)
	stq	$31,16($16)
	stq	$31,24($16)

	stq	$31,32($16)
	stq	$31,40($16)
	stq	$31,48($16)
	subq	$0,1,$0

	stq	$31,56($16)
	addq	$16,64,$16
	unop
	bne	$0,1b

	ret
	nop
	unop
	nop

	.end clear_page
	EXPORT_SYMBOL(clear_page)