include/asm-ppc64/perfmon.h

   1 /*
   2  * This file contains the code to configure and utilize the ppc64 pmc hardware
   3  * Copyright (C) 2002 David Engebretsen <engebret@us.ibm.com>
   4  */
   5
   6 #ifndef __KERNEL__
   7 #define INLINE_SYSCALL(arg1, arg2)       \
   8   ({                                            \
   9     register long r0 __asm__ ("r0");     \
  10     register long r3 __asm__ ("r3"); \
  11     register long r4 __asm__ ("r4"); \
  12     long ret, err;                              \
  13     r0 = 208; \
  14     r3 = (long) (arg1); \
  15     r4 = (long) (arg2); \
  16     __asm__ ("sc\n\t"                           \
  17              "mfcr      %1\n\t"                 \
  18              : "=r" (r3), "=r" (err)            \
  19              : "r" (r0), "r" (r3), "r" (r4) \
  20              : "cc", "memory");                 \
  21     ret = r3;                                   \
  22   })
  23 #endif
  24
  25 #ifndef __ASSEMBLY__
  26 struct perfmon_base_struct {
  27         u64 profile_buffer;
  28         u64 profile_length;
  29         u64 trace_buffer;
  30         u64 trace_length;
  31         u64 trace_end;
  32         u64 timeslice_buffer;
  33         u64 timeslice_length;
  34         u64 state;
  35 };
  36
  37 struct pmc_header {
  38         int subcmd;
  39         union {
  40                 int type;
  41                 int pid;        /* PID to trace */
  42                 int slice;      /* Timeslice ID */
  43         } vdata;
  44         int resv[30];
  45 };
  46
  47 struct pmc_struct {
  48         unsigned long pmc[11];
  49 };
  50
  51 struct pmc_info_struct {
  52         unsigned int mode, cpu;
  53
  54         unsigned int  pmc_base[11];
  55         unsigned long pmc_cumulative[8];
  56 };
  57
  58 struct perfmon_struct {
  59         struct pmc_header header;
  60
  61         union {
  62                 struct pmc_struct      pmc;
  63                 struct pmc_info_struct pmc_info;
  64         } vdata;
  65 };
  66
  67 enum {
  68         PMC_CMD_BUFFER       = 1,
  69         PMC_CMD_DUMP         = 2,
  70         PMC_CMD_DECR_PROFILE = 3,
  71         PMC_CMD_PROFILE      = 4,
  72         PMC_CMD_TRACE        = 5,
  73         PMC_CMD_TIMESLICE    = 6
  74 };
  75
  76 enum {
  77         PMC_SUBCMD_BUFFER_ALLOC         = 1,
  78         PMC_SUBCMD_BUFFER_FREE          = 2,
  79         PMC_SUBCMD_BUFFER_CLEAR         = 3
  80 };
  81
  82 enum {
  83         PMC_SUBCMD_DUMP_COUNTERS        = 1,
  84         PMC_SUBCMD_DUMP_HARDWARE        = 2
  85 };
  86
  87 enum {
  88         PMC_SUBCMD_PROFILE_CYCLE        = 1,
  89 };
  90
  91 enum {
  92         PMC_SUBCMD_TIMESLICE_ENABLE     = 1,
  93         PMC_SUBCMD_TIMESLICE_DISABLE    = 2,
  94         PMC_SUBCMD_TIMESLICE_SET        = 3
  95 };
  96
  97 #define PMC_TRACE_CMD 0xFF
  98
  99 /*
 100  * The following types are not used by the kernel; they are put into the
 101  * trace as flag records for the user space tools to interpret.
 102  */
 103 enum  {
 104         PMC_TYPE_DERC_PROFILE   = 1,
 105         PMC_TYPE_CYCLE          = 2,
 106         PMC_TYPE_PROFILE        = 3,
 107         PMC_TYPE_DCACHE         = 4,
 108         PMC_TYPE_L2_MISS        = 5,
 109         PMC_TYPE_LWARCX         = 6,
 110         PMC_TYPE_TIMESLICE      = 7,
 111         PMC_TYPE_TIMESLICE_DUMP = 8,
 112         PMC_TYPE_END            = 8
 113 };
 114 #endif
 115
 116 #define PMC_STATE_INITIAL         0x00
 117 #define PMC_STATE_READY           0x01
 118 #define PMC_STATE_DECR_PROFILE    0x10
 119 #define PMC_STATE_PROFILE_KERN    0x11
 120 #define PMC_STATE_TRACE_KERN      0x20
 121 #define PMC_STATE_TRACE_USER      0x21
 122 #define PMC_STATE_TIMESLICE       0x40
 123