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- /*
- * 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)
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