| /* 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) |
