| Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | /* |
| 3 | * arch/alpha/lib/clear_page.S |
| 4 | * |
| 5 | * Zero an entire page. |
| 6 | */ |
| Al Viro | 00fc0e0 | 2016-01-11 09:51:29 -0500 | [diff] [blame] | 7 | #include <asm/export.h> |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8 | .text |
| 9 | .align 4 |
| 10 | .global clear_page |
| 11 | .ent clear_page |
| 12 | clear_page: |
| 13 | .prologue 0 |
| 14 | |
| 15 | lda $0,128 |
| 16 | nop |
| 17 | unop |
| 18 | nop |
| 19 | |
| 20 | 1: 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 |
| Al Viro | 00fc0e0 | 2016-01-11 09:51:29 -0500 | [diff] [blame] | 41 | EXPORT_SYMBOL(clear_page) |