regmap: async: Add tracepoints for async I/O
Trace when we start and complete async writes, and when we start and
finish blocking for their completion. This is useful for performance
analysis of the resulting I/O patterns.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/include/trace/events/regmap.h b/include/trace/events/regmap.h
index 41a7dbd..a43a2f6 100644
--- a/include/trace/events/regmap.h
+++ b/include/trace/events/regmap.h
@@ -175,6 +175,54 @@
);
+DECLARE_EVENT_CLASS(regmap_async,
+
+ TP_PROTO(struct device *dev),
+
+ TP_ARGS(dev),
+
+ TP_STRUCT__entry(
+ __string( name, dev_name(dev) )
+ ),
+
+ TP_fast_assign(
+ __assign_str(name, dev_name(dev));
+ ),
+
+ TP_printk("%s", __get_str(name))
+);
+
+DEFINE_EVENT(regmap_block, regmap_async_write_start,
+
+ TP_PROTO(struct device *dev, unsigned int reg, int count),
+
+ TP_ARGS(dev, reg, count)
+);
+
+DEFINE_EVENT(regmap_async, regmap_async_io_complete,
+
+ TP_PROTO(struct device *dev),
+
+ TP_ARGS(dev)
+
+);
+
+DEFINE_EVENT(regmap_async, regmap_async_complete_start,
+
+ TP_PROTO(struct device *dev),
+
+ TP_ARGS(dev)
+
+);
+
+DEFINE_EVENT(regmap_async, regmap_async_complete_done,
+
+ TP_PROTO(struct device *dev),
+
+ TP_ARGS(dev)
+
+);
+
#endif /* _TRACE_REGMAP_H */
/* This part must be outside protection */