coresight: implementing 'cpu_id()' API

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Other than plainly parsing the device tree there is no way to
know which CPU a tracer is affined to.  As such adding an
interface to lookup the CPU field enclosed in the etm_drvdata
structure that was initialised at boot time.

Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Mathieu Poirier 2016-02-02 14:14:01 -07:00 • committed by Greg Kroah-Hartman

parent b15f0fb657

commit 52210c8745

3 changed files with 19 additions and 0 deletions

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include/linux/coresight.h

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