root/arch/powerpc/include/asm/disassemble.h

INCLUDED FROM

DEFINITIONS

1. get_op
2. get_xop
3. get_sprn
4. get_dcrn
5. get_tmrn
6. get_rt
7. get_rs
8. get_ra
9. get_rb
10. get_rc
11. get_ws
12. get_d
13. get_oc
14. get_tx_or_sx
15. make_dsisr

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  *
   4  * Copyright IBM Corp. 2008
   5  *
   6  * Authors: Hollis Blanchard <hollisb@us.ibm.com>
   7  */
   8 
   9 #ifndef __ASM_PPC_DISASSEMBLE_H__
  10 #define __ASM_PPC_DISASSEMBLE_H__
  11 
  12 #include <linux/types.h>
  13 
  14 static inline unsigned int get_op(u32 inst)
  15 {
  16         return inst >> 26;
  17 }
  18 
  19 static inline unsigned int get_xop(u32 inst)
  20 {
  21         return (inst >> 1) & 0x3ff;
  22 }
  23 
  24 static inline unsigned int get_sprn(u32 inst)
  25 {
  26         return ((inst >> 16) & 0x1f) | ((inst >> 6) & 0x3e0);
  27 }
  28 
  29 static inline unsigned int get_dcrn(u32 inst)
  30 {
  31         return ((inst >> 16) & 0x1f) | ((inst >> 6) & 0x3e0);
  32 }
  33 
  34 static inline unsigned int get_tmrn(u32 inst)
  35 {
  36         return ((inst >> 16) & 0x1f) | ((inst >> 6) & 0x3e0);
  37 }
  38 
  39 static inline unsigned int get_rt(u32 inst)
  40 {
  41         return (inst >> 21) & 0x1f;
  42 }
  43 
  44 static inline unsigned int get_rs(u32 inst)
  45 {
  46         return (inst >> 21) & 0x1f;
  47 }
  48 
  49 static inline unsigned int get_ra(u32 inst)
  50 {
  51         return (inst >> 16) & 0x1f;
  52 }
  53 
  54 static inline unsigned int get_rb(u32 inst)
  55 {
  56         return (inst >> 11) & 0x1f;
  57 }
  58 
  59 static inline unsigned int get_rc(u32 inst)
  60 {
  61         return inst & 0x1;
  62 }
  63 
  64 static inline unsigned int get_ws(u32 inst)
  65 {
  66         return (inst >> 11) & 0x1f;
  67 }
  68 
  69 static inline unsigned int get_d(u32 inst)
  70 {
  71         return inst & 0xffff;
  72 }
  73 
  74 static inline unsigned int get_oc(u32 inst)
  75 {
  76         return (inst >> 11) & 0x7fff;
  77 }
  78 
  79 static inline unsigned int get_tx_or_sx(u32 inst)
  80 {
  81         return (inst) & 0x1;
  82 }
  83 
  84 #define IS_XFORM(inst)  (get_op(inst)  == 31)
  85 #define IS_DSFORM(inst) (get_op(inst) >= 56)
  86 
  87 /*
  88  * Create a DSISR value from the instruction
  89  */
  90 static inline unsigned make_dsisr(unsigned instr)
  91 {
  92         unsigned dsisr;
  93 
  94 
  95         /* bits  6:15 --> 22:31 */
  96         dsisr = (instr & 0x03ff0000) >> 16;
  97 
  98         if (IS_XFORM(instr)) {
  99                 /* bits 29:30 --> 15:16 */
 100                 dsisr |= (instr & 0x00000006) << 14;
 101                 /* bit     25 -->    17 */
 102                 dsisr |= (instr & 0x00000040) << 8;
 103                 /* bits 21:24 --> 18:21 */
 104                 dsisr |= (instr & 0x00000780) << 3;
 105         } else {
 106                 /* bit      5 -->    17 */
 107                 dsisr |= (instr & 0x04000000) >> 12;
 108                 /* bits  1: 4 --> 18:21 */
 109                 dsisr |= (instr & 0x78000000) >> 17;
 110                 /* bits 30:31 --> 12:13 */
 111                 if (IS_DSFORM(instr))
 112                         dsisr |= (instr & 0x00000003) << 18;
 113         }
 114 
 115         return dsisr;
 116 }
 117 #endif /* __ASM_PPC_DISASSEMBLE_H__ */