Merge branch 'ap-bus-trace-events'

Harald Freudenberger says:

====================

Investigations related to runtime of crypto requests has revealed a lack of
performance or runtime information with crypto requests. There are the two
zcrypt ioctl trace events covering the entry and exit of an ioctl with
crypto requests giving the overall runtime within the kernel. However,
there is no way to figure out the time where a request is enqueued into the
AP bus queue but not pushed into the firmware queue. Then there is no
information about the runtime of an request during processing in the
firmware. And finally some info about pulling the reply from the firmware
and delivering it into user space is missing.

This series is aiming to provide a way to collect measurements which can be
used to cover these runtime information for each crypto request/reply.

====================

Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

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