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-rw-r--r--include/trace/events/smp.h91
1 files changed, 91 insertions, 0 deletions
diff --git a/include/trace/events/smp.h b/include/trace/events/smp.h
new file mode 100644
index 00000000000..c8abfd74472
--- /dev/null
+++ b/include/trace/events/smp.h
@@ -0,0 +1,91 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM smp
+
+#if !defined(_TRACE_SMP_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_SMP_H
+
+#include <linux/tracepoint.h>
+typedef void (*__smp_call_func_t)(void *info);
+
+DECLARE_EVENT_CLASS(smp_call_class,
+
+ TP_PROTO(__smp_call_func_t fnc),
+
+ TP_ARGS(fnc),
+
+ TP_STRUCT__entry(
+ __field( void *, func )
+ ),
+
+ TP_fast_assign(
+ __entry->func = fnc;
+ ),
+
+ TP_printk("func=%pf", __entry->func)
+);
+
+/**
+ * smp_call_func_entry - called in the generic smp-cross-call-handler
+ * immediately before calling the destination
+ * function
+ * @func: function pointer
+ *
+ * When used in combination with the smp_call_func_exit tracepoint
+ * we can determine the cross-call runtime.
+ */
+DEFINE_EVENT(smp_call_class, smp_call_func_entry,
+
+ TP_PROTO(__smp_call_func_t fnc),
+
+ TP_ARGS(fnc)
+);
+
+/**
+ * smp_call_func_exit - called in the generic smp-cross-call-handler
+ * immediately after the destination function
+ * returns
+ * @func: function pointer
+ *
+ * When used in combination with the smp_call_entry tracepoint
+ * we can determine the cross-call runtime.
+ */
+DEFINE_EVENT(smp_call_class, smp_call_func_exit,
+
+ TP_PROTO(__smp_call_func_t fnc),
+
+ TP_ARGS(fnc)
+);
+
+/**
+ * smp_call_func_send - called as destination function is set
+ * in the per-cpu storage
+ * @func: function pointer
+ * @dest: cpu to send to
+ *
+ * When used in combination with the smp_cross_call_entry tracepoint
+ * we can determine the call-to-run latency.
+ */
+TRACE_EVENT(smp_call_func_send,
+
+ TP_PROTO(__smp_call_func_t func, int dest),
+
+ TP_ARGS(func, dest),
+
+ TP_STRUCT__entry(
+ __field( void * , func )
+ __field( int , dest )
+ ),
+
+ TP_fast_assign(
+ __entry->func = func;
+ __entry->dest = dest;
+ ),
+
+ TP_printk("dest=%d func=%pf", __entry->dest,
+ __entry->func)
+);
+
+#endif /* _TRACE_SMP_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>