kernel/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         EMe( TLB_LOCAL_MM_SHOOTDOWN,    "local mm shootdown" )
  15
  16 /*
  17  * First define the enums in TLB_FLUSH_REASON to be exported to userspace
  18  * via TRACE_DEFINE_ENUM().
  19  */
  20 #undef EM
  21 #undef EMe
  22 #define EM(a,b)         TRACE_DEFINE_ENUM(a);
  23 #define EMe(a,b)        TRACE_DEFINE_ENUM(a);
  24
  25 TLB_FLUSH_REASON
  26
  27 /*
  28  * Now redefine the EM() and EMe() macros to map the enums to the strings
  29  * that will be printed in the output.
  30  */
  31 #undef EM
  32 #undef EMe
  33 #define EM(a,b)         { a, b },
  34 #define EMe(a,b)        { a, b }
  35
  36 TRACE_EVENT_CONDITION(tlb_flush,
  37
  38         TP_PROTO(int reason, unsigned long pages),
  39         TP_ARGS(reason, pages),
  40
  41         TP_CONDITION(cpu_online(smp_processor_id())),
  42
  43         TP_STRUCT__entry(
  44                 __field(          int, reason)
  45                 __field(unsigned long,  pages)
  46         ),
  47
  48         TP_fast_assign(
  49                 __entry->reason = reason;
  50                 __entry->pages  = pages;
  51         ),
  52
  53         TP_printk("pages:%ld reason:%s (%d)",
  54                 __entry->pages,
  55                 __print_symbolic(__entry->reason, TLB_FLUSH_REASON),
  56                 __entry->reason)
  57 );
  58
  59 #endif /* _TRACE_TLB_H */
  60
  61 /* This part must be outside protection */
  62 #include <trace/define_trace.h>