Files
Linux_Drivers/linux_5.10/arch/alpha/lib/clear_page.S
sam.xiang 5c7dd7acc3 [linux] create linux_5.10.4 from T-head official:
repo: https://github.com/T-head-Semi/linux
	commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb

Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
2023-03-10 20:32:41 +08:00

42 lines
490 B
ArmAsm

/* 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)