Add new kernel probes instrumentation

[lttng-modules.git] / instrumentation / events / lttng-module / rpm.h

diff --git a/instrumentation/events/lttng-module/rpm.h b/instrumentation/events/lttng-module/rpm.h
new file mode 100644 (file)
index 0000000..16bcad0
--- /dev/null
+++ b/instrumentation/events/lttng-module/rpm.h
@@ -0,0 +1,101 @@
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM rpm
+
+#if !defined(_TRACE_RUNTIME_POWER_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_RUNTIME_POWER_H
+
+#include <linux/ktime.h>
+#include <linux/tracepoint.h>
+
+#ifndef _TRACE_RPM_DEF_
+#define _TRACE_RPM_DEF_
+struct device;
+#endif
+
+/*
+ * The rpm_internal events are used for tracing some important
+ * runtime pm internal functions.
+ */
+DECLARE_EVENT_CLASS(rpm_internal,
+
+       TP_PROTO(struct device *dev, int flags),
+
+       TP_ARGS(dev, flags),
+
+       TP_STRUCT__entry(
+               __string(       name,           dev_name(dev)   )
+               __field(        int,            flags           )
+               __field(        int ,           usage_count     )
+               __field(        int ,           disable_depth   )
+               __field(        int ,           runtime_auto    )
+               __field(        int ,           request_pending )
+               __field(        int ,           irq_safe        )
+               __field(        int ,           child_count     )
+       ),
+
+       TP_fast_assign(
+               tp_strcpy(name, dev_name(dev))
+               tp_assign(flags, flags)
+               tp_assign(usage_count, atomic_read(&dev->power.usage_count))
+               tp_assign(disable_depth, dev->power.disable_depth)
+               tp_assign(runtime_auto, dev->power.runtime_auto)
+               tp_assign(request_pending, dev->power.request_pending)
+               tp_assign(irq_safe, dev->power.irq_safe)
+               tp_assign(child_count, atomic_read(&dev->power.child_count))
+       ),
+
+       TP_printk("%s flags-%x cnt-%-2d dep-%-2d auto-%-1d p-%-1d"
+                       " irq-%-1d child-%d",
+                       __get_str(name), __entry->flags,
+                       __entry->usage_count,
+                       __entry->disable_depth,
+                       __entry->runtime_auto,
+                       __entry->request_pending,
+                       __entry->irq_safe,
+                       __entry->child_count
+                )
+)
+DEFINE_EVENT(rpm_internal, rpm_suspend,
+
+       TP_PROTO(struct device *dev, int flags),
+
+       TP_ARGS(dev, flags)
+)
+DEFINE_EVENT(rpm_internal, rpm_resume,
+
+       TP_PROTO(struct device *dev, int flags),
+
+       TP_ARGS(dev, flags)
+)
+DEFINE_EVENT(rpm_internal, rpm_idle,
+
+       TP_PROTO(struct device *dev, int flags),
+
+       TP_ARGS(dev, flags)
+)
+
+TRACE_EVENT(rpm_return_int,
+       TP_PROTO(struct device *dev, unsigned long ip, int ret),
+       TP_ARGS(dev, ip, ret),
+
+       TP_STRUCT__entry(
+               __string(       name,           dev_name(dev))
+               __field(        unsigned long,          ip      )
+               __field(        int,                    ret     )
+       ),
+
+       TP_fast_assign(
+               tp_strcpy(name, dev_name(dev))
+               tp_assign(ip, ip)
+               tp_assign(ret, ret)
+       ),
+
+       TP_printk("%pS:%s ret=%d", (void *)__entry->ip, __get_str(name),
+               __entry->ret)
+)
+
+#endif /* _TRACE_RUNTIME_POWER_H */
+
+/* This part must be outside protection */
+#include "../../../probes/define_trace.h"