[U-Boot] [PATCH v3 0/6] Iotrace improvements

[Ramon Fried <ramon.fried@gmail.com>]

These set of patches add few improvements to iotrace.
* Region limiting - allows setting an address and size where only
					io operations that falls into that address are
					logged.
* Timestamping - Timestamp every iotrace record with current timestamp
* dumping - iotrace dump command for dumping all records from buffer
			in a readable fashion.

In terms of backwards compatibility, the timestamp is not backward
compatible as it changes the iotrace record. so if one developed an
offline parsing tool it will be broken.
I though of adding #ifdef specific for that, but eventually I didn't.

v2:
	* fixed printf format
	* added a fix when the buffer is full
v3:
	* changed the "buffer full" scenario as
	recommended by Simon Glass.
	This fix  is dependand on a sperate patch that introduces
	WARN_ONCE definition in bug.h (https://patchwork.ozlabs.org/patch/921391/)

Ramon Fried (6):
  cmd: iotrace: add set region command
  iotrace: add IO region limit
  common: iotrace: add timestamp to iotrace records
  iotrace: move record definitons to header file
  cmd: iotrace: add dump trace command
  iotrace: fix behaviour when buffer is full

 cmd/iotrace.c     | 63 ++++++++++++++++++++++++++++++++++++++++++---
 common/iotrace.c  | 65 +++++++++++++++++++++++++++--------------------
 include/iotrace.h | 57 +++++++++++++++++++++++++++++++++++++++--
 3 files changed, 153 insertions(+), 32 deletions(-)

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