diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mm_types.h | 8 | ||||
| -rw-r--r-- | include/trace/events/tlb.h | 40 |
2 files changed, 48 insertions, 0 deletions
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index 96c5750..796deac 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -516,4 +516,12 @@ struct vm_special_mapping struct page **pages; }; +enum tlb_flush_reason { + TLB_FLUSH_ON_TASK_SWITCH, + TLB_REMOTE_SHOOTDOWN, + TLB_LOCAL_SHOOTDOWN, + TLB_LOCAL_MM_SHOOTDOWN, + NR_TLB_FLUSH_REASONS, +}; + #endif /* _LINUX_MM_TYPES_H */ diff --git a/include/trace/events/tlb.h b/include/trace/events/tlb.h new file mode 100644 index 0000000..13391d2 --- /dev/null +++ b/include/trace/events/tlb.h @@ -0,0 +1,40 @@ +#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 \ + { TLB_FLUSH_ON_TASK_SWITCH, "flush on task switch" }, \ + { TLB_REMOTE_SHOOTDOWN, "remote shootdown" }, \ + { TLB_LOCAL_SHOOTDOWN, "local shootdown" }, \ + { TLB_LOCAL_MM_SHOOTDOWN, "local mm shootdown" } + +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> |