diff options
Diffstat (limited to 'arch/alpha/lib/clear_page.S')
| -rw-r--r-- | arch/alpha/lib/clear_page.S | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/arch/alpha/lib/clear_page.S b/arch/alpha/lib/clear_page.S new file mode 100644 index 000000000..ce02de7b0 --- /dev/null +++ b/arch/alpha/lib/clear_page.S @@ -0,0 +1,41 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * 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) |