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authorRafael J. Wysocki <rjw@sisk.pl>2011-10-07 23:16:55 +0200
committerRafael J. Wysocki <rjw@sisk.pl>2011-10-07 23:16:55 +0200
commitd727b60659a1173eb4142a5fc521ce67c28b34e1 (patch)
tree793d0fc86ecf98331024db5c86bc271cc72aa2d2 /include/trace
parent3ee72ca99288f1de95ec9c570e43f531c8799f06 (diff)
parent2a5306cc5f383b0e7414c75e458111afd4a563a4 (diff)
downloadlinux-linaro-stable-d727b60659a1173eb4142a5fc521ce67c28b34e1.tar.gz
Merge branch 'pm-runtime' into pm-for-linus
* pm-runtime: PM / Tracing: build rpm-traces.c only if CONFIG_PM_RUNTIME is set PM / Runtime: Replace dev_dbg() with trace_rpm_*() PM / Runtime: Introduce trace points for tracing rpm_* functions PM / Runtime: Don't run callbacks under lock for power.irq_safe set USB: Add wakeup info to debugging messages PM / Runtime: pm_runtime_idle() can be called in atomic context PM / Runtime: Add macro to test for runtime PM events PM / Runtime: Add might_sleep() to runtime PM functions
Diffstat (limited to 'include/trace')
-rw-r--r--include/trace/events/rpm.h99
1 files changed, 99 insertions, 0 deletions
diff --git a/include/trace/events/rpm.h b/include/trace/events/rpm.h
new file mode 100644
index 000000000000..d62c558bf64b
--- /dev/null
+++ b/include/trace/events/rpm.h
@@ -0,0 +1,99 @@
+
+#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>
+#include <linux/device.h>
+
+/*
+ * 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(
+ __assign_str(name, dev_name(dev));
+ __entry->flags = flags;
+ __entry->usage_count = atomic_read(
+ &dev->power.usage_count);
+ __entry->disable_depth = dev->power.disable_depth;
+ __entry->runtime_auto = dev->power.runtime_auto;
+ __entry->request_pending = dev->power.request_pending;
+ __entry->irq_safe = dev->power.irq_safe;
+ __entry->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(
+ __assign_str(name, dev_name(dev));
+ __entry->ip = ip;
+ __entry->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 <trace/define_trace.h>