LXR linux/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 */
  18TRACE_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
  37DECLARE_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 */
  63DEFINE_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 */
  79DEFINE_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>
  90