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

   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
  27TLB_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
  38TRACE_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>
  63