root/include/trace/events/tlb.h

INCLUDED FROM

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #undef TRACE_SYSTEM
   3 #define TRACE_SYSTEM tlb
   4 
   5 #if !defined(_TRACE_TLB_H) || defined(TRACE_HEADER_MULTI_READ)
   6 #define _TRACE_TLB_H
   7 
   8 #include <linux/mm_types.h>
   9 #include <linux/tracepoint.h>
  10 
  11 #define TLB_FLUSH_REASON                                                \
  12         EM(  TLB_FLUSH_ON_TASK_SWITCH,  "flush on task switch" )        \
  13         EM(  TLB_REMOTE_SHOOTDOWN,      "remote shootdown" )            \
  14         EM(  TLB_LOCAL_SHOOTDOWN,       "local shootdown" )             \
  15         EM(  TLB_LOCAL_MM_SHOOTDOWN,    "local mm shootdown" )          \
  16         EMe( TLB_REMOTE_SEND_IPI,       "remote ipi send" )
  17 
  18 /*
  19  * First define the enums in TLB_FLUSH_REASON to be exported to userspace
  20  * via TRACE_DEFINE_ENUM().
  21  */
  22 #undef EM
  23 #undef EMe
  24 #define EM(a,b)         TRACE_DEFINE_ENUM(a);
  25 #define EMe(a,b)        TRACE_DEFINE_ENUM(a);
  26 
  27 TLB_FLUSH_REASON
  28 
  29 /*
  30  * Now redefine the EM() and EMe() macros to map the enums to the strings
  31  * that will be printed in the output.
  32  */
  33 #undef EM
  34 #undef EMe
  35 #define EM(a,b)         { a, b },
  36 #define EMe(a,b)        { a, b }
  37 
  38 TRACE_EVENT(tlb_flush,
  39 
  40         TP_PROTO(int reason, unsigned long pages),
  41         TP_ARGS(reason, pages),
  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>