| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * arch/alpha/lib/ev6-clear_page.S |
| * |
| * Zero an entire page. |
| */ |
| #include <linux/export.h> |
| .text |
| .align 4 |
| .global clear_page |
| .ent clear_page |
| clear_page: |
| .prologue 0 |
| |
| lda $0,128 |
| lda $1,125 |
| addq $16,64,$2 |
| addq $16,128,$3 |
| |
| addq $16,192,$17 |
| wh64 ($16) |
| wh64 ($2) |
| wh64 ($3) |
| |
| 1: wh64 ($17) |
| stq $31,0($16) |
| subq $0,1,$0 |
| subq $1,1,$1 |
| |
| stq $31,8($16) |
| stq $31,16($16) |
| addq $17,64,$2 |
| nop |
| |
| stq $31,24($16) |
| stq $31,32($16) |
| cmovgt $1,$2,$17 |
| nop |
| |
| stq $31,40($16) |
| stq $31,48($16) |
| nop |
| nop |
| |
| stq $31,56($16) |
| addq $16,64,$16 |
| nop |
| bne $0,1b |
| |
| ret |
| nop |
| nop |
| nop |
| |
| .end clear_page |
| EXPORT_SYMBOL(clear_page) |
