62 lines
1.4 KiB
C
62 lines
1.4 KiB
C
|
#undef TRACE_SYSTEM
|
||
|
|
#define TRACE_SYSTEM tlb
|
||
|
|
|
||
|
|
#if !defined(_TRACE_TLB_H) || defined(TRACE_HEADER_MULTI_READ)
|
||
|
|
#define _TRACE_TLB_H
|
||
|
|
|
||
|
|
#include <linux/mm_types.h>
|
||
|
|
#include <linux/tracepoint.h>
|
||
|
|
|
||
|
|
#define TLB_FLUSH_REASON \
|
||
|
|
EM( TLB_FLUSH_ON_TASK_SWITCH, "flush on task switch" ) \
|
||
|
|
EM( TLB_REMOTE_SHOOTDOWN, "remote shootdown" ) \
|
||
|
|
EM( TLB_LOCAL_SHOOTDOWN, "local shootdown" ) \
|
||
|
|
EM( TLB_LOCAL_MM_SHOOTDOWN, "local mm shootdown" ) \
|
||
|
|
EMe( TLB_REMOTE_SEND_IPI, "remote ipi send" )
|
||
|
|
|
||
|
|
/*
|
||
|
|
* First define the enums in TLB_FLUSH_REASON to be exported to userspace
|
||
|
|
* via TRACE_DEFINE_ENUM().
|
||
|
|
*/
|
||
|
|
#undef EM
|
||
|
|
#undef EMe
|
||
|
|
#define EM(a,b) TRACE_DEFINE_ENUM(a);
|
||
|
|
#define EMe(a,b) TRACE_DEFINE_ENUM(a);
|
||
|
|
|
||
|
|
TLB_FLUSH_REASON
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Now redefine the EM() and EMe() macros to map the enums to the strings
|
||
|
|
* that will be printed in the output.
|
||
|
|
*/
|
||
|
|
#undef EM
|
||
|
|
#undef EMe
|
||
|
|
#define EM(a,b) { a, b },
|
||
|
|
#define EMe(a,b) { a, b }
|
||
|
|
|
||
|
|
TRACE_EVENT(tlb_flush,
|
||
|
|
|
||
|
|
TP_PROTO(int reason, unsigned long pages),
|
||
|
|
TP_ARGS(reason, pages),
|
||
|
|
|
||
|
|
TP_STRUCT__entry(
|
||
|
|
__field( int, reason)
|
||
|
|
__field(unsigned long, pages)
|
||
|
|
),
|
||
|
|
|
||
|
|
TP_fast_assign(
|
||
|
|
__entry->reason = reason;
|
||
|
|
__entry->pages = pages;
|
||
|
|
),
|
||
|
|
|
||
|
|
TP_printk("pages:%ld reason:%s (%d)",
|
||
|
|
__entry->pages,
|
||
|
|
__print_symbolic(__entry->reason, TLB_FLUSH_REASON),
|
||
|
|
__entry->reason)
|
||
|
|
);
|
||
|
|
|
||
|
|
#endif /* _TRACE_TLB_H */
|
||
|
|
|
||
|
|
/* This part must be outside protection */
|
||
|
|
#include <trace/define_trace.h>
|