Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / include / trace / events / ipi.h

diff --git a/kernel/include/trace/events/ipi.h b/kernel/include/trace/events/ipi.h
new file mode 100644 (file)
index 0000000..834a736
--- /dev/null
+++ b/kernel/include/trace/events/ipi.h
@@ -0,0 +1,89 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM ipi
+
+#if !defined(_TRACE_IPI_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_IPI_H
+
+#include <linux/tracepoint.h>
+
+/**
+ * ipi_raise - called when a smp cross call is made
+ *
+ * @mask: mask of recipient CPUs for the IPI
+ * @reason: string identifying the IPI purpose
+ *
+ * It is necessary for @reason to be a static string declared with
+ * __tracepoint_string.
+ */
+TRACE_EVENT(ipi_raise,
+
+       TP_PROTO(const struct cpumask *mask, const char *reason),
+
+       TP_ARGS(mask, reason),
+
+       TP_STRUCT__entry(
+               __bitmask(target_cpus, nr_cpumask_bits)
+               __field(const char *, reason)
+       ),
+
+       TP_fast_assign(
+               __assign_bitmask(target_cpus, cpumask_bits(mask), nr_cpumask_bits);
+               __entry->reason = reason;
+       ),
+
+       TP_printk("target_mask=%s (%s)", __get_bitmask(target_cpus), __entry->reason)
+);
+
+DECLARE_EVENT_CLASS(ipi_handler,
+
+       TP_PROTO(const char *reason),
+
+       TP_ARGS(reason),
+
+       TP_STRUCT__entry(
+               __field(const char *, reason)
+       ),
+
+       TP_fast_assign(
+               __entry->reason = reason;
+       ),
+
+       TP_printk("(%s)", __entry->reason)
+);
+
+/**
+ * ipi_entry - called immediately before the IPI handler
+ *
+ * @reason: string identifying the IPI purpose
+ *
+ * It is necessary for @reason to be a static string declared with
+ * __tracepoint_string, ideally the same as used with trace_ipi_raise
+ * for that IPI.
+ */
+DEFINE_EVENT(ipi_handler, ipi_entry,
+
+       TP_PROTO(const char *reason),
+
+       TP_ARGS(reason)
+);
+
+/**
+ * ipi_exit - called immediately after the IPI handler returns
+ *
+ * @reason: string identifying the IPI purpose
+ *
+ * It is necessary for @reason to be a static string declared with
+ * __tracepoint_string, ideally the same as used with trace_ipi_raise for
+ * that IPI.
+ */
+DEFINE_EVENT(ipi_handler, ipi_exit,
+
+       TP_PROTO(const char *reason),
+
+       TP_ARGS(reason)
+);
+
+#endif /* _TRACE_IPI_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>