63 lines
1.3 KiB
ArmAsm
63 lines
1.3 KiB
ArmAsm
|
/*
|
||
|
|
* Quadword loads and stores
|
||
|
|
* for use in instruction emulation.
|
||
|
|
*
|
||
|
|
* Copyright 2017 Paul Mackerras, IBM Corp. <paulus@au1.ibm.com>
|
||
|
|
*
|
||
|
|
* 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>
|
||
|
|
#include <asm/ppc-opcode.h>
|
||
|
|
#include <asm/reg.h>
|
||
|
|
#include <asm/asm-offsets.h>
|
||
|
|
#include <linux/errno.h>
|
||
|
|
|
||
|
|
/* do_lq(unsigned long ea, unsigned long *regs) */
|
||
|
|
_GLOBAL(do_lq)
|
||
|
|
1: lq r6, 0(r3)
|
||
|
|
std r6, 0(r4)
|
||
|
|
std r7, 8(r4)
|
||
|
|
li r3, 0
|
||
|
|
blr
|
||
|
|
2: li r3, -EFAULT
|
||
|
|
blr
|
||
|
|
EX_TABLE(1b, 2b)
|
||
|
|
|
||
|
|
/* do_stq(unsigned long ea, unsigned long val0, unsigned long val1) */
|
||
|
|
_GLOBAL(do_stq)
|
||
|
|
1: stq r4, 0(r3)
|
||
|
|
li r3, 0
|
||
|
|
blr
|
||
|
|
2: li r3, -EFAULT
|
||
|
|
blr
|
||
|
|
EX_TABLE(1b, 2b)
|
||
|
|
|
||
|
|
/* do_lqarx(unsigned long ea, unsigned long *regs) */
|
||
|
|
_GLOBAL(do_lqarx)
|
||
|
|
1: PPC_LQARX(6, 0, 3, 0)
|
||
|
|
std r6, 0(r4)
|
||
|
|
std r7, 8(r4)
|
||
|
|
li r3, 0
|
||
|
|
blr
|
||
|
|
2: li r3, -EFAULT
|
||
|
|
blr
|
||
|
|
EX_TABLE(1b, 2b)
|
||
|
|
|
||
|
|
/* do_stqcx(unsigned long ea, unsigned long val0, unsigned long val1,
|
||
|
|
unsigned int *crp) */
|
||
|
|
|
||
|
|
_GLOBAL(do_stqcx)
|
||
|
|
1: PPC_STQCX(4, 0, 3)
|
||
|
|
mfcr r5
|
||
|
|
stw r5, 0(r6)
|
||
|
|
li r3, 0
|
||
|
|
blr
|
||
|
|
2: li r3, -EFAULT
|
||
|
|
blr
|
||
|
|
EX_TABLE(1b, 2b)
|