1 /* SPDX-License-Identifier: GPL-2.0 */ 1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* 2 /*
3 * arch/alpha/lib/clear_page.S 3 * arch/alpha/lib/clear_page.S
4 * 4 *
5 * Zero an entire page. 5 * Zero an entire page.
6 */ 6 */
7 #include <linux/export.h> 7 #include <linux/export.h>
8 .text 8 .text
9 .align 4 9 .align 4
10 .global clear_page 10 .global clear_page
11 .ent clear_page 11 .ent clear_page
12 clear_page: 12 clear_page:
13 .prologue 0 13 .prologue 0
14 14
15 lda $0,128 15 lda $0,128
16 nop 16 nop
17 unop 17 unop
18 nop 18 nop
19 19
20 1: stq $31,0($16) 20 1: stq $31,0($16)
21 stq $31,8($16) 21 stq $31,8($16)
22 stq $31,16($16) 22 stq $31,16($16)
23 stq $31,24($16) 23 stq $31,24($16)
24 24
25 stq $31,32($16) 25 stq $31,32($16)
26 stq $31,40($16) 26 stq $31,40($16)
27 stq $31,48($16) 27 stq $31,48($16)
28 subq $0,1,$0 28 subq $0,1,$0
29 29
30 stq $31,56($16) 30 stq $31,56($16)
31 addq $16,64,$16 31 addq $16,64,$16
32 unop 32 unop
33 bne $0,1b 33 bne $0,1b
34 34
35 ret 35 ret
36 nop 36 nop
37 unop 37 unop
38 nop 38 nop
39 39
40 .end clear_page 40 .end clear_page
41 EXPORT_SYMBOL(clear_page) 41 EXPORT_SYMBOL(clear_page)
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