LXR linux/include/trace/events/tlb.h

   1#undef TRACE_SYSTEM
   2#define TRACE_SYSTEM tlb
   3
   4#if !defined(_TRACE_TLB_H) || defined(TRACE_HEADER_MULTI_READ)
   5#define _TRACE_TLB_H
   6
   7#include <linux/mm_types.h>
   8#include <linux/tracepoint.h>
   9
  10#define TLB_FLUSH_REASON                                                \
  11        EM(  TLB_FLUSH_ON_TASK_SWITCH,  "flush on task switch" )        \
  12        EM(  TLB_REMOTE_SHOOTDOWN,      "remote shootdown" )            \
  13        EM(  TLB_LOCAL_SHOOTDOWN,       "local shootdown" )             \
  14        EM(  TLB_LOCAL_MM_SHOOTDOWN,    "local mm shootdown" )          \
  15        EMe( TLB_REMOTE_SEND_IPI,       "remote ipi send" )
  16
  17/*
  18 * First define the enums in TLB_FLUSH_REASON to be exported to userspace
  19 * via TRACE_DEFINE_ENUM().
  20 */
  21#undef EM
  22#undef EMe
  23#define EM(a,b)         TRACE_DEFINE_ENUM(a);
  24#define EMe(a,b)        TRACE_DEFINE_ENUM(a);
  25
  26TLB_FLUSH_REASON
  27
  28/*
  29 * Now redefine the EM() and EMe() macros to map the enums to the strings
  30 * that will be printed in the output.
  31 */
  32#undef EM
  33#undef EMe
  34#define EM(a,b)         { a, b },
  35#define EMe(a,b)        { a, b }
  36
  37TRACE_EVENT(tlb_flush,
  38
  39        TP_PROTO(int reason, unsigned long pages),
  40        TP_ARGS(reason, pages),
  41
  42        TP_STRUCT__entry(
  43                __field(          int, reason)
  44                __field(unsigned long,  pages)
  45        ),
  46
  47        TP_fast_assign(
  48                __entry->reason = reason;
  49                __entry->pages  = pages;
  50        ),
  51
  52        TP_printk("pages:%ld reason:%s (%d)",
  53                __entry->pages,
  54                __print_symbolic(__entry->reason, TLB_FLUSH_REASON),
  55                __entry->reason)
  56);
  57
  58#endif /* _TRACE_TLB_H */
  59
  60/* This part must be outside protection */
  61#include <trace/define_trace.h>
  62