xref: /openbmc/linux/arch/alpha/lib/clear_page.S (revision 1992f2af)
1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * arch/alpha/lib/clear_page.S
4 *
5 * Zero an entire page.
6 */
7#include <linux/export.h>
8	.text
9	.align 4
10	.global clear_page
11	.ent clear_page
12clear_page:
13	.prologue 0
14
15	lda	$0,128
16	nop
17	unop
18	nop
19
201:	stq	$31,0($16)
21	stq	$31,8($16)
22	stq	$31,16($16)
23	stq	$31,24($16)
24
25	stq	$31,32($16)
26	stq	$31,40($16)
27	stq	$31,48($16)
28	subq	$0,1,$0
29
30	stq	$31,56($16)
31	addq	$16,64,$16
32	unop
33	bne	$0,1b
34
35	ret
36	nop
37	unop
38	nop
39
40	.end clear_page
41	EXPORT_SYMBOL(clear_page)
42