linux-kernel - Re: [PATCH v6 10/10] Documentation: arm64: Document PMU counters access from userspace

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Message-ID: <20210331160016.GC7815@willie-the-truck>
Date:   Wed, 31 Mar 2021 17:00:16 +0100
From:   Will Deacon <will@...nel.org>
To:     Rob Herring <robh@...nel.org>
Cc:     Catalin Marinas <catalin.marinas@....com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Jiri Olsa <jolsa@...hat.com>,
        Mark Rutland <mark.rutland@....com>,
        Ian Rogers <irogers@...gle.com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        honnappa.nagarahalli@....com, Zachary.Leaf@....com,
        Raphael Gault <raphael.gault@....com>,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Itaru Kitayama <itaru.kitayama@...il.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6 10/10] Documentation: arm64: Document PMU counters
 access from userspace

On Wed, Mar 10, 2021 at 05:08:37PM -0700, Rob Herring wrote:
> From: Raphael Gault <raphael.gault@....com>
> 
> Add a documentation file to describe the access to the pmu hardware
> counters from userspace
> 
> Signed-off-by: Raphael Gault <raphael.gault@....com>
> Signed-off-by: Rob Herring <robh@...nel.org>
> ---
> v6:
>   - Update the chained event section with attr.config1 details
> v2:
>   - Update links to test examples
> 
> Changes from Raphael's v4:
>   - Convert to rSt
>   - Update chained event status
>   - Add section for heterogeneous systems
> ---
>  Documentation/arm64/index.rst                 |  1 +
>  .../arm64/perf_counter_user_access.rst        | 60 +++++++++++++++++++

We already have Documentation/arm64/perf.rst so I think you can add this
in there as a new section.

Will