5c7dd7acc3
repo: https://github.com/T-head-Semi/linux commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
57 lines
691 B
ArmAsm
57 lines
691 B
ArmAsm
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* arch/alpha/lib/ev6-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
|
|
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)
|