From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Wed, 5 Aug 2015 17:04:01 -0300 Subject: Initial import --- include/trace/events/tlb.h | 62 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 include/trace/events/tlb.h (limited to 'include/trace/events/tlb.h') diff --git a/include/trace/events/tlb.h b/include/trace/events/tlb.h new file mode 100644 index 000000000..4250f364a --- /dev/null +++ b/include/trace/events/tlb.h @@ -0,0 +1,62 @@ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM tlb + +#if !defined(_TRACE_TLB_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_TLB_H + +#include +#include + +#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" ) \ + EMe( TLB_LOCAL_MM_SHOOTDOWN, "local mm shootdown" ) + +/* + * 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_CONDITION(tlb_flush, + + TP_PROTO(int reason, unsigned long pages), + TP_ARGS(reason, pages), + + TP_CONDITION(cpu_online(smp_processor_id())), + + 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 -- cgit v1.2.3-54-g00ecf