include/trace/events/smp.h

   1 #undef TRACE_SYSTEM
   2 #define TRACE_SYSTEM smp
   3
   4 #if !defined(_TRACE_SMP_H) || defined(TRACE_HEADER_MULTI_READ)
   5 #define _TRACE_SMP_H
   6
   7 #include <linux/tracepoint.h>
   8
   9 DECLARE_EVENT_CLASS(smp_call_class,
  10
  11         TP_PROTO(void * fnc),
  12
  13         TP_ARGS(fnc),
  14
  15         TP_STRUCT__entry(
  16                 __field( void *, func )
  17         ),
  18
  19         TP_fast_assign(
  20                 __entry->func = fnc;
  21         ),
  22
  23         TP_printk("func=%pf", __entry->func)
  24 );
  25
  26 /**
  27  * smp_call_func_entry - called in the generic smp-cross-call-handler
  28  *                                               immediately before calling the destination
  29  *                                               function
  30  * @func:  function pointer
  31  *
  32  * When used in combination with the smp_call_func_exit tracepoint
  33  * we can determine the cross-call runtime.
  34  */
  35 DEFINE_EVENT(smp_call_class, smp_call_func_entry,
  36
  37         TP_PROTO(void * fnc),
  38
  39         TP_ARGS(fnc)
  40 );
  41
  42 /**
  43  * smp_call_func_exit - called in the generic smp-cross-call-handler
  44  *                                              immediately after the destination function
  45  *                                              returns
  46  * @func:  function pointer
  47  *
  48  * When used in combination with the smp_call_entry tracepoint
  49  * we can determine the cross-call runtime.
  50  */
  51 DEFINE_EVENT(smp_call_class, smp_call_func_exit,
  52
  53         TP_PROTO(void * fnc),
  54
  55         TP_ARGS(fnc)
  56 );
  57
  58 /**
  59  * smp_call_func_send - called as destination function is set
  60  *                                              in the per-cpu storage
  61  * @func:  function pointer
  62  * @dest:  cpu to send to
  63  *
  64  * When used in combination with the smp_cross_call_entry tracepoint
  65  * we can determine the call-to-run latency.
  66  */
  67 TRACE_EVENT(smp_call_func_send,
  68
  69         TP_PROTO(void * func, int dest),
  70
  71         TP_ARGS(func, dest),
  72
  73         TP_STRUCT__entry(
  74                 __field(        void *  ,       func )
  75                 __field(        int             ,       dest )
  76         ),
  77
  78         TP_fast_assign(
  79                 __entry->func = func;
  80                 __entry->dest = dest;
  81         ),
  82
  83         TP_printk("dest=%d func=%pf", __entry->dest,
  84                         __entry->func)
  85 );
  86
  87 #endif /*  _TRACE_SMP_H */
  88
  89 /* This part must be outside protection */
  90 #include <trace/define_trace.h>