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| /* SPDX-License-Identifier: GPL-2.0-or-later */
| /*
| * Quadword loads and stores
| * for use in instruction emulation.
| *
| * Copyright 2017 Paul Mackerras, IBM Corp. <paulus@au1.ibm.com>
| */
|
| #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)
|
|
