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58 lines
1.1 KiB
58 lines
1.1 KiB
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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/* |
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* Quadword loads and stores |
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* for use in instruction emulation. |
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* |
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* Copyright 2017 Paul Mackerras, IBM Corp. <paulus@au1.ibm.com> |
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*/ |
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#include <asm/processor.h> |
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#include <asm/ppc_asm.h> |
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#include <asm/ppc-opcode.h> |
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#include <asm/reg.h> |
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#include <asm/asm-offsets.h> |
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#include <linux/errno.h> |
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/* do_lq(unsigned long ea, unsigned long *regs) */ |
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_GLOBAL(do_lq) |
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1: lq r6, 0(r3) |
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std r6, 0(r4) |
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std r7, 8(r4) |
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li r3, 0 |
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blr |
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2: li r3, -EFAULT |
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blr |
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EX_TABLE(1b, 2b) |
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/* do_stq(unsigned long ea, unsigned long val0, unsigned long val1) */ |
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_GLOBAL(do_stq) |
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1: stq r4, 0(r3) |
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li r3, 0 |
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blr |
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2: li r3, -EFAULT |
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blr |
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EX_TABLE(1b, 2b) |
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/* do_lqarx(unsigned long ea, unsigned long *regs) */ |
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_GLOBAL(do_lqarx) |
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1: PPC_LQARX(6, 0, 3, 0) |
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std r6, 0(r4) |
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std r7, 8(r4) |
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li r3, 0 |
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blr |
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2: li r3, -EFAULT |
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blr |
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EX_TABLE(1b, 2b) |
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/* do_stqcx(unsigned long ea, unsigned long val0, unsigned long val1, |
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unsigned int *crp) */ |
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_GLOBAL(do_stqcx) |
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1: PPC_STQCX(4, 0, 3) |
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mfcr r5 |
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stw r5, 0(r6) |
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li r3, 0 |
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blr |
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2: li r3, -EFAULT |
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blr |
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EX_TABLE(1b, 2b)
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