1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * Quadword loads and stores
4 * for use in instruction emulation.
5 *
6 * Copyright 2017 Paul Mackerras, IBM Corp. <paulus@au1.ibm.com>
7 */
8
9#include <asm/processor.h>
10#include <asm/ppc_asm.h>
11#include <asm/ppc-opcode.h>
12#include <asm/reg.h>
13#include <asm/asm-offsets.h>
14#include <linux/errno.h>
15
16/* do_lq(unsigned long ea, unsigned long *regs) */
17_GLOBAL(do_lq)
181:	lq	r6, 0(r3)
19	std	r6, 0(r4)
20	std	r7, 8(r4)
21	li	r3, 0
22	blr
232:	li	r3, -EFAULT
24	blr
25	EX_TABLE(1b, 2b)
26
27/* do_stq(unsigned long ea, unsigned long val0, unsigned long val1) */
28_GLOBAL(do_stq)
291:	stq	r4, 0(r3)
30	li	r3, 0
31	blr
322:	li	r3, -EFAULT
33	blr
34	EX_TABLE(1b, 2b)
35
36/* do_lqarx(unsigned long ea, unsigned long *regs) */
37_GLOBAL(do_lqarx)
381:	PPC_LQARX(6, 0, 3, 0)
39	std	r6, 0(r4)
40	std	r7, 8(r4)
41	li	r3, 0
42	blr
432:	li	r3, -EFAULT
44	blr
45	EX_TABLE(1b, 2b)
46
47/* do_stqcx(unsigned long ea, unsigned long val0, unsigned long val1,
48	    unsigned int *crp) */
49
50_GLOBAL(do_stqcx)
511:	PPC_STQCX(4, 0, 3)
52	mfcr	r5
53	stw	r5, 0(r6)
54	li	r3, 0
55	blr
562:	li	r3, -EFAULT
57	blr
58	EX_TABLE(1b, 2b)
59