linux-kernel - Re: [PATCH v7 0/3] perf arm-spe: Add support for synthetic events

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Date:   Fri, 22 May 2020 11:09:19 +0800
From:   Leo Yan <leo.yan@...aro.org>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Jiri Olsa <jolsa@...hat.com>, Will Deacon <will@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        James Clark <james.clark@....com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Al Grant <al.grant@....com>,
        Namhyung Kim <namhyung@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        Mike Leach <mike.leach@...aro.org>
Subject: Re: [PATCH v7 0/3] perf arm-spe: Add support for synthetic events

Hi,

On Mon, May 04, 2020 at 07:56:22PM +0800, Leo Yan wrote:
> This patch set is to support synthetic events with enabling Arm SPE
> decoder.  Since before Xiaojun Tan (Hisilicon) and James Clark (Arm)
> have contributed much for this task, so this patch set is based on their
> privous work and polish for the version 7.
> 
> The main work in this version is to polished the core patch "perf
> arm-spe: Support synthetic events", e.g. rewrite the code to calculate
> ip, packet generation for multiple types (L1 data cache, Last level
> cache, TLB, remote access, etc).  It also heavily refactors code for
> data structure and program flow, which removed unused fields in
> structure and polished the program flow to achieve neat code as
> possible.
> 
> This patch set has been checked with checkpatch.pl, though it leaves
> several warnings, but these warnings are delibarately kept after
> reviewing.  Some warnings ask to add maintainer (so far it's not
> necessary), and some warnings complaint for patch 02 "perf auxtrace:
> Add four itrace options" for the text format, since need to keep the
> consistency with the same code format in the source code, this is why
> this patch doesn't get rid of checkpatch warnings.

Gentle ping ...

It would be appreciate if can get some review for this patch set.

Thanks,
Leo

> Tan Xiaojun (3):
>   perf tools: Move arm-spe-pkt-decoder.h/c to the new dir
>   perf auxtrace: Add four itrace options
>   perf arm-spe: Support synthetic events
> 
>  tools/perf/Documentation/itrace.txt           |   6 +-
>  tools/perf/util/Build                         |   2 +-
>  tools/perf/util/arm-spe-decoder/Build         |   1 +
>  .../util/arm-spe-decoder/arm-spe-decoder.c    | 219 +++++
>  .../util/arm-spe-decoder/arm-spe-decoder.h    |  82 ++
>  .../arm-spe-pkt-decoder.c                     |   0
>  .../arm-spe-pkt-decoder.h                     |  16 +
>  tools/perf/util/arm-spe.c                     | 823 +++++++++++++++++-
>  tools/perf/util/auxtrace.c                    |  17 +
>  tools/perf/util/auxtrace.h                    |  15 +-
>  10 files changed, 1135 insertions(+), 46 deletions(-)
>  create mode 100644 tools/perf/util/arm-spe-decoder/Build
>  create mode 100644 tools/perf/util/arm-spe-decoder/arm-spe-decoder.c
>  create mode 100644 tools/perf/util/arm-spe-decoder/arm-spe-decoder.h
>  rename tools/perf/util/{ => arm-spe-decoder}/arm-spe-pkt-decoder.c (100%)
>  rename tools/perf/util/{ => arm-spe-decoder}/arm-spe-pkt-decoder.h (64%)
> 
> -- 
> 2.17.1
>