1 /* 2 * This program is free software; you can redistribute it and/or modify 3 * it under the terms of the GNU General Public License, version 2, as 4 * published by the Free Software Foundation. 5 * 6 * This program is distributed in the hope that it will be useful, 7 * but WITHOUT ANY WARRANTY; without even the implied warranty of 8 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 9 * GNU General Public License for more details. 10 * 11 * You should have received a copy of the GNU General Public License 12 * along with this program; if not, write to the Free Software 13 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 14 * 15 * Copyright IBM Corp. 2008 16 * 17 * Authors: Hollis Blanchard <hollisb@us.ibm.com> 18 */ 19 20 #ifndef __ASM_PPC_DISASSEMBLE_H__ 21 #define __ASM_PPC_DISASSEMBLE_H__ 22 23 #include <linux/types.h> 24 get_op(u32 inst)25static inline unsigned int get_op(u32 inst) 26 { 27 return inst >> 26; 28 } 29 get_xop(u32 inst)30static inline unsigned int get_xop(u32 inst) 31 { 32 return (inst >> 1) & 0x3ff; 33 } 34 get_sprn(u32 inst)35static inline unsigned int get_sprn(u32 inst) 36 { 37 return ((inst >> 16) & 0x1f) | ((inst >> 6) & 0x3e0); 38 } 39 get_dcrn(u32 inst)40static inline unsigned int get_dcrn(u32 inst) 41 { 42 return ((inst >> 16) & 0x1f) | ((inst >> 6) & 0x3e0); 43 } 44 get_rt(u32 inst)45static inline unsigned int get_rt(u32 inst) 46 { 47 return (inst >> 21) & 0x1f; 48 } 49 get_rs(u32 inst)50static inline unsigned int get_rs(u32 inst) 51 { 52 return (inst >> 21) & 0x1f; 53 } 54 get_ra(u32 inst)55static inline unsigned int get_ra(u32 inst) 56 { 57 return (inst >> 16) & 0x1f; 58 } 59 get_rb(u32 inst)60static inline unsigned int get_rb(u32 inst) 61 { 62 return (inst >> 11) & 0x1f; 63 } 64 get_rc(u32 inst)65static inline unsigned int get_rc(u32 inst) 66 { 67 return inst & 0x1; 68 } 69 get_ws(u32 inst)70static inline unsigned int get_ws(u32 inst) 71 { 72 return (inst >> 11) & 0x1f; 73 } 74 get_d(u32 inst)75static inline unsigned int get_d(u32 inst) 76 { 77 return inst & 0xffff; 78 } 79 get_oc(u32 inst)80static inline unsigned int get_oc(u32 inst) 81 { 82 return (inst >> 11) & 0x7fff; 83 } 84 85 #define IS_XFORM(inst) (get_op(inst) == 31) 86 #define IS_DSFORM(inst) (get_op(inst) >= 56) 87 88 /* 89 * Create a DSISR value from the instruction 90 */ make_dsisr(unsigned instr)91static inline unsigned make_dsisr(unsigned instr) 92 { 93 unsigned dsisr; 94 95 96 /* bits 6:15 --> 22:31 */ 97 dsisr = (instr & 0x03ff0000) >> 16; 98 99 if (IS_XFORM(instr)) { 100 /* bits 29:30 --> 15:16 */ 101 dsisr |= (instr & 0x00000006) << 14; 102 /* bit 25 --> 17 */ 103 dsisr |= (instr & 0x00000040) << 8; 104 /* bits 21:24 --> 18:21 */ 105 dsisr |= (instr & 0x00000780) << 3; 106 } else { 107 /* bit 5 --> 17 */ 108 dsisr |= (instr & 0x04000000) >> 12; 109 /* bits 1: 4 --> 18:21 */ 110 dsisr |= (instr & 0x78000000) >> 17; 111 /* bits 30:31 --> 12:13 */ 112 if (IS_DSFORM(instr)) 113 dsisr |= (instr & 0x00000003) << 18; 114 } 115 116 return dsisr; 117 } 118 #endif /* __ASM_PPC_DISASSEMBLE_H__ */ 119