/*
* arch/ppc64/lib/copypage.S
*
* Copyright (C) 2002 Paul Mackerras, IBM Corp.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#include <asm/processor.h>
#include <asm/ppc_asm.h>
_GLOBAL(copy_page)
std r31,-8(1)
std r30,-16(1)
std r29,-24(1)
std r28,-32(1)
std r27,-40(1)
std r26,-48(1)
std r25,-56(1)
std r24,-64(1)
std r23,-72(1)
std r22,-80(1)
std r21,-88(1)
std r20,-96(1)
li r5,4096/32 - 1
addi r3,r3,-8
li r12,5
0: addi r5,r5,-24
mtctr r12
ld r22,640(4)
ld r21,512(4)
ld r20,384(4)
ld r11,256(4)
ld r9,128(4)
ld r7,0(4)
ld r25,648(4)
ld r24,520(4)
ld r23,392(4)
ld r10,264(4)
ld r8,136(4)
ldu r6,8(4)
cmpwi r5,24
1: std r22,648(3)
std r21,520(3)
std r20,392(3)
std r11,264(3)
std r9,136(3)
std r7,8(3)
ld r28,648(4)
ld r27,520(4)
ld r26,392(4)
ld r31,264(4)
ld r30,136(4)
ld r29,8(4)
std r25,656(3)
std r24,528(3)
std r23,400(3)
std r10,272(3)
std r8,144(3)
std r6,16(3)
ld r22,656(4)
ld r21,528(4)
ld r20,400(4)
ld r11,272(4)
ld r9,144(4)
ld r7,16(4)
std r28,664(3)
std r27,536(3)
std r26,408(3)
std r31,280(3)
std r30,152(3)
stdu r29,24(3)
ld r25,664(4)
ld r24,536(4)
ld r23,408(4)
ld r10,280(4)
ld r8,152(4)
ldu r6,24(4)
bdnz 1b
std r22,648(3)
std r21,520(3)
std r20,392(3)
std r11,264(3)
std r9,136(3)
std r7,8(3)
addi r4,r4,640
addi r3,r3,648
bge 0b
mtctr r5
ld r7,0(4)
ld r8,8(4)
ldu r9,16(4)
3: ld r10,8(4)
std r7,8(3)
ld r7,16(4)
std r8,16(3)
ld r8,24(4)
std r9,24(3)
ldu r9,32(4)
stdu r10,32(3)
bdnz 3b
4: ld r10,8(4)
std r7,8(3)
std r8,16(3)
std r9,24(3)
std r10,32(3)
9: ld r20,-96(1)
ld r21,-88(1)
ld r22,-80(1)
ld r23,-72(1)
ld r24,-64(1)
ld r25,-56(1)
ld r26,-48(1)
ld r27,-40(1)
ld r28,-32(1)
ld r29,-24(1)
ld r30,-16(1)
ld r31,-8(1)
blr
