118 lines
2.1 KiB
C
118 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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*
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* Copyright IBM Corp. 2008
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*
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* Authors: Hollis Blanchard <hollisb@us.ibm.com>
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*/
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#ifndef __ASM_PPC_DISASSEMBLE_H__
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#define __ASM_PPC_DISASSEMBLE_H__
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#include <linux/types.h>
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static inline unsigned int get_op(u32 inst)
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{
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return inst >> 26;
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}
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static inline unsigned int get_xop(u32 inst)
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{
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return (inst >> 1) & 0x3ff;
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}
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static inline unsigned int get_sprn(u32 inst)
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{
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return ((inst >> 16) & 0x1f) | ((inst >> 6) & 0x3e0);
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}
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static inline unsigned int get_dcrn(u32 inst)
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{
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return ((inst >> 16) & 0x1f) | ((inst >> 6) & 0x3e0);
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}
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static inline unsigned int get_tmrn(u32 inst)
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{
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return ((inst >> 16) & 0x1f) | ((inst >> 6) & 0x3e0);
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}
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static inline unsigned int get_rt(u32 inst)
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{
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return (inst >> 21) & 0x1f;
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}
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static inline unsigned int get_rs(u32 inst)
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{
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return (inst >> 21) & 0x1f;
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}
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static inline unsigned int get_ra(u32 inst)
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{
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return (inst >> 16) & 0x1f;
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}
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static inline unsigned int get_rb(u32 inst)
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{
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return (inst >> 11) & 0x1f;
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}
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static inline unsigned int get_rc(u32 inst)
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{
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return inst & 0x1;
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}
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static inline unsigned int get_ws(u32 inst)
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{
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return (inst >> 11) & 0x1f;
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}
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static inline unsigned int get_d(u32 inst)
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{
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return inst & 0xffff;
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}
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static inline unsigned int get_oc(u32 inst)
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{
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return (inst >> 11) & 0x7fff;
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}
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static inline unsigned int get_tx_or_sx(u32 inst)
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{
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return (inst) & 0x1;
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}
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#define IS_XFORM(inst) (get_op(inst) == 31)
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#define IS_DSFORM(inst) (get_op(inst) >= 56)
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/*
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* Create a DSISR value from the instruction
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*/
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static inline unsigned make_dsisr(unsigned instr)
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{
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unsigned dsisr;
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/* bits 6:15 --> 22:31 */
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dsisr = (instr & 0x03ff0000) >> 16;
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if (IS_XFORM(instr)) {
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/* bits 29:30 --> 15:16 */
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dsisr |= (instr & 0x00000006) << 14;
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/* bit 25 --> 17 */
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dsisr |= (instr & 0x00000040) << 8;
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/* bits 21:24 --> 18:21 */
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dsisr |= (instr & 0x00000780) << 3;
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} else {
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/* bit 5 --> 17 */
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dsisr |= (instr & 0x04000000) >> 12;
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/* bits 1: 4 --> 18:21 */
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dsisr |= (instr & 0x78000000) >> 17;
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/* bits 30:31 --> 12:13 */
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if (IS_DSFORM(instr))
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dsisr |= (instr & 0x00000003) << 18;
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}
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return dsisr;
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}
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#endif /* __ASM_PPC_DISASSEMBLE_H__ */
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