linux-kernel - Re: [PATCH] perf vendor events arm64: Add Cortex-A72 events

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Date:   Mon, 8 Apr 2019 17:47:33 +0100
From:   Will Deacon <will.deacon@....com>
To:     Florian Fainelli <f.fainelli@...il.com>
Cc:     linux-kernel@...r.kernel.org,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        "moderated list:ARM PMU PROFILING AND DEBUGGING" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] perf vendor events arm64: Add Cortex-A72 events

Hi Florian,

On Sun, Apr 07, 2019 at 02:34:22PM -0700, Florian Fainelli wrote:
> The Cortex-A72 supports all ARMv8 recommended events up to the
> RC_ST_SPEC (0x91) event, create an appropriate JSON file for mapping
> those events and update the mapfile.csv for matching the Cortex-A72 MIDR
> to that file.
> 
> Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
> ---
>  .../arm64/arm/cortex-a72/core-imp-def.json    | 206 ++++++++++++++++++
>  tools/perf/pmu-events/arch/arm64/mapfile.csv  |   1 +
>  2 files changed, 207 insertions(+)
>  create mode 100644 tools/perf/pmu-events/arch/arm64/arm/cortex-a72/core-imp-def.json

It would be worth checking how many of these events are common between a57
and a72, as they may be able to share much of the json file.

Cheers,

Will