include/trace/events/ipi.h

   1 #undef TRACE_SYSTEM
   2 #define TRACE_SYSTEM ipi
   3
   4 #if !defined(_TRACE_IPI_H) || defined(TRACE_HEADER_MULTI_READ)
   5 #define _TRACE_IPI_H
   6
   7 #include <linux/tracepoint.h>
   8
   9 /**
  10  * ipi_raise - called when a smp cross call is made
  11  *
  12  * @mask: mask of recipient CPUs for the IPI
  13  * @reason: string identifying the IPI purpose
  14  *
  15  * It is necessary for @reason to be a static string declared with
  16  * __tracepoint_string.
  17  */
  18 TRACE_EVENT(ipi_raise,
  19
  20         TP_PROTO(const struct cpumask *mask, const char *reason),
  21
  22         TP_ARGS(mask, reason),
  23
  24         TP_STRUCT__entry(
  25                 __bitmask(target_cpus, nr_cpumask_bits)
  26                 __field(const char *, reason)
  27         ),
  28
  29         TP_fast_assign(
  30                 __assign_bitmask(target_cpus, cpumask_bits(mask), nr_cpumask_bits);
  31                 __entry->reason = reason;
  32         ),
  33
  34         TP_printk("target_mask=%s (%s)", __get_bitmask(target_cpus), __entry->reason)
  35 );
  36
  37 DECLARE_EVENT_CLASS(ipi_handler,
  38
  39         TP_PROTO(const char *reason),
  40
  41         TP_ARGS(reason),
  42
  43         TP_STRUCT__entry(
  44                 __field(const char *, reason)
  45         ),
  46
  47         TP_fast_assign(
  48                 __entry->reason = reason;
  49         ),
  50
  51         TP_printk("(%s)", __entry->reason)
  52 );
  53
  54 /**
  55  * ipi_entry - called immediately before the IPI handler
  56  *
  57  * @reason: string identifying the IPI purpose
  58  *
  59  * It is necessary for @reason to be a static string declared with
  60  * __tracepoint_string, ideally the same as used with trace_ipi_raise
  61  * for that IPI.
  62  */
  63 DEFINE_EVENT(ipi_handler, ipi_entry,
  64
  65         TP_PROTO(const char *reason),
  66
  67         TP_ARGS(reason)
  68 );
  69
  70 /**
  71  * ipi_exit - called immediately after the IPI handler returns
  72  *
  73  * @reason: string identifying the IPI purpose
  74  *
  75  * It is necessary for @reason to be a static string declared with
  76  * __tracepoint_string, ideally the same as used with trace_ipi_raise for
  77  * that IPI.
  78  */
  79 DEFINE_EVENT(ipi_handler, ipi_exit,
  80
  81         TP_PROTO(const char *reason),
  82
  83         TP_ARGS(reason)
  84 );
  85
  86 #endif /* _TRACE_IPI_H */
  87
  88 /* This part must be outside protection */
  89 #include <trace/define_trace.h>