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Mark Brown 84e909303d ASoC: Add DAPM trace events ...

Trace events for DAPM allow us to monitor the performance and behaviour
of DAPM with logging which can be built into the kernel permanantly, is
more suited to automated analysis and display and less likely to suffer
interference from other logging activity.

Currently trace events are generated for:

- Start and stop of DAPM processing
- Start and stop of bias level changes
- Power decisions for widgets
- Widget event execution start and stop

giving some view as to what is happening and where latencies occur.

Actual changes in widget power can be seen via the register write trace in
soc-core.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>

2010-11-11 14:54:31 +00:00

..

events

ASoC: Add DAPM trace events

2010-11-11 14:54:31 +00:00

define_trace.h

tracing: Fix tracepoint.h DECLARE_TRACE() to allow more than one header

2010-05-05 11:46:17 -04:00

ftrace.h

tracing: Drop cpparg() macro

2010-08-02 01:31:28 +02:00

syscall.h

tracing: Use a global field list for all syscall exit events

2010-06-28 17:12:44 -04:00