[0/6] Support ETE decoding

Message

James Clark July 21, 2021, 9:06 a.m. UTC

Decoding ETE already works because it is a superset of
ETMv4, but if any new packet types are found then they will be
ignored by the decoder. This patchset creates an ETE decoder
which can output the new packets and saves a new register that
is required. No new packet types are handled by perf yet, as this
can be added in the future.

This set applies on top of "perf cs-etm: Support TRBE
(unformatted decoding)" on perf/core.

James Clark (6):
  perf cs-etm: Refactor initialisation of decoder params.
  perf cs-etm: Initialise architecture based on TRCIDR1
  perf cs-etm: Save TRCDEVARCH register
  perf cs-etm: Update OpenCSD decoder for ETE
  perf cs-etm: Create ETE decoder
  perf cs-etm: Print the decoder name

 tools/build/feature/test-libopencsd.c         |   4 +-
 tools/perf/arch/arm/util/cs-etm.c             |  13 +-
 .../perf/util/cs-etm-decoder/cs-etm-decoder.c | 151 ++++++++----------
 .../perf/util/cs-etm-decoder/cs-etm-decoder.h |   8 +
 tools/perf/util/cs-etm.c                      |  54 ++++++-
 tools/perf/util/cs-etm.h                      |   6 +-
 6 files changed, 147 insertions(+), 89 deletions(-)

Comments

Mathieu Poirier July 21, 2021, 2:59 p.m. UTC | #1

Hi James,

I have received this set but won't be able to look at it for quite some time.

Thanks,
Mathieu

On Wed, 21 Jul 2021 at 03:07, James Clark <[e-mail]> wrote:
>
> Decoding ETE already works because it is a superset of
> ETMv4, but if any new packet types are found then they will be
> ignored by the decoder. This patchset creates an ETE decoder
> which can output the new packets and saves a new register that
> is required. No new packet types are handled by perf yet, as this
> can be added in the future.
>
> This set applies on top of "perf cs-etm: Support TRBE
> (unformatted decoding)" on perf/core.
>
> James Clark (6):
>   perf cs-etm: Refactor initialisation of decoder params.
>   perf cs-etm: Initialise architecture based on TRCIDR1
>   perf cs-etm: Save TRCDEVARCH register
>   perf cs-etm: Update OpenCSD decoder for ETE
>   perf cs-etm: Create ETE decoder
>   perf cs-etm: Print the decoder name
>
>  tools/build/feature/test-libopencsd.c         |   4 +-
>  tools/perf/arch/arm/util/cs-etm.c             |  13 +-
>  .../perf/util/cs-etm-decoder/cs-etm-decoder.c | 151 ++++++++----------
>  .../perf/util/cs-etm-decoder/cs-etm-decoder.h |   8 +
>  tools/perf/util/cs-etm.c                      |  54 ++++++-
>  tools/perf/util/cs-etm.h                      |   6 +-
>  6 files changed, 147 insertions(+), 89 deletions(-)
>
> --
> 2.28.0
>