Line data    Source code

       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      185144 : 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>