/* 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)