include/asm-sparc/perfctr.h

   1 /*----------------------------------------
   2   PERFORMANCE INSTRUMENTATION
   3   Guillaume Thouvenin           08/10/98
   4   David S. Miller               10/06/98
   5   ---------------------------------------*/
   6 #ifndef PERF_COUNTER_API
   7 #define PERF_COUNTER_API
   8
   9 /* sys_perfctr() interface.  First arg is operation code
  10  * from enumeration below.  The meaning of further arguments
  11  * are determined by the operation code.
  12  *
  13  * int sys_perfctr(int opcode, unsigned long arg0,
  14  *                 unsigned long arg1, unsigned long arg2)
  15  *
  16  * Pointers which are passed by the user are pointers to 64-bit
  17  * integers.
  18  *
  19  * Once enabled, performance counter state is retained until the
  20  * process either exits or performs an exec.  That is, performance
  21  * counters remain enabled for fork/clone children.
  22  */
  23 enum perfctr_opcode {
  24         /* Enable UltraSparc performance counters, ARG0 is pointer
  25          * to 64-bit accumulator for D0 counter in PIC, ARG1 is pointer
  26          * to 64-bit accumulator for D1 counter.  ARG2 is a pointer to
  27          * the initial PCR register value to use.
  28          */
  29         PERFCTR_ON,
  30
  31         /* Disable UltraSparc performance counters.  The PCR is written
  32          * with zero and the user counter accumulator pointers and
  33          * working PCR register value are forgotten.
  34          */
  35         PERFCTR_OFF,
  36
  37         /* Add current D0 and D1 PIC values into user pointers given
  38          * in PERFCTR_ON operation.  The PIC is cleared before returning.
  39          */
  40         PERFCTR_READ,
  41
  42         /* Clear the PIC register. */
  43         PERFCTR_CLRPIC,
  44
  45         /* Begin using a new PCR value, the pointer to which is passed
  46          * in ARG0.  The PIC is also cleared after the new PCR value is
  47          * written.
  48          */
  49         PERFCTR_SETPCR,
  50
  51         /* Store in pointer given in ARG0 the current PCR register value
  52          * being used.
  53          */
  54         PERFCTR_GETPCR
  55 };
  56
  57 /* I don't want the kernel's namespace to be polluted with this
  58  * stuff when this file is included.  --DaveM
  59  */
  60 #ifndef __KERNEL__
  61
  62 #define  PRIV 0x00000001
  63 #define  USR  0x00000002
  64 #define  SYS  0x00000004
  65
  66 /* Pic.S0 Selection Bit Field Encoding  */
  67 #define  CYCLE_CNT            0x00000000
  68 #define  INSTR_CNT            0x00000010
  69 #define  DISPATCH0_IC_MISS    0x00000020
  70 #define  DISPATCH0_STOREBUF   0x00000030
  71 #define  IC_REF               0x00000080
  72 #define  DC_RD                0x00000090
  73 #define  DC_WR                0x000000A0
  74 #define  LOAD_USE             0x000000B0
  75 #define  EC_REF               0x000000C0
  76 #define  EC_WRITE_HIT_RDO     0x000000D0
  77 #define  EC_SNOOP_INV         0x000000E0
  78 #define  EC_RD_HIT            0x000000F0
  79
  80 /* Pic.S1 Selection Bit Field Encoding  */
  81 #define  CYCLE_CNT_D1         0x00000000
  82 #define  INSTR_CNT_D1         0x00000800
  83 #define  DISPATCH0_IC_MISPRED 0x00001000
  84 #define  DISPATCH0_FP_USE     0x00001800
  85 #define  IC_HIT               0x00004000
  86 #define  DC_RD_HIT            0x00004800
  87 #define  DC_WR_HIT            0x00005000
  88 #define  LOAD_USE_RAW         0x00005800
  89 #define  EC_HIT               0x00006000
  90 #define  EC_WB                0x00006800
  91 #define  EC_SNOOP_CB          0x00007000
  92 #define  EC_IT_HIT            0x00007800
  93
  94 struct vcounter_struct {
  95   unsigned long long vcnt0;
  96   unsigned long long vcnt1;
  97 };
  98
  99 #endif /* !(__KERNEL__) */
 100
 101 #endif /* !(PERF_COUNTER_API) */