linux-kernel - Re: [PATCH] perf vendor events arm64: Add AmpereOne core pmu events

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Date:   Wed, 21 Jun 2023 20:27:40 -0700 (PDT)
From:   Ilkka Koskinen <ilkka@...amperecomputing.com>
To:     Dave Kleikamp <dave.kleikamp@...cle.com>
cc:     Ilkka Koskinen <ilkka@...amperecomputing.com>,
        John Garry <john.g.garry@...cle.com>,
        Will Deacon <will@...nel.org>,
        James Clark <james.clark@....com>,
        Mike Leach <mike.leach@...aro.org>,
        Leo Yan <leo.yan@...aro.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Ian Rogers <irogers@...gle.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-perf-users@...r.kernel.org
Subject: Re: [PATCH] perf vendor events arm64: Add AmpereOne core pmu
 events


Hi Dave,

On Wed, 21 Jun 2023, Dave Kleikamp wrote:
> On 4/27/23 5:32PM, Ilkka Koskinen wrote:
>> Add JSON files for AmpereOne core PMU events.
>> 
>> Signed-off-by: Doug Rady <dcrady@...amperecomputing.com>
>> Signed-off-by: Ilkka Koskinen <ilkka@...amperecomputing.com>
>> ---
>
>  CLIP
>
>> diff --git a/tools/perf/pmu-events/arch/arm64/ampere/ampereone/cache.json 
>> b/tools/perf/pmu-events/arch/arm64/ampere/ampereone/cache.json
>> new file mode 100644
>> index 000000000000..fc0633054211
>> --- /dev/null
>> +++ b/tools/perf/pmu-events/arch/arm64/ampere/ampereone/cache.json
>> @@ -0,0 +1,104 @@
>> +[
>> +    {
>> +        "ArchStdEvent": "L1D_CACHE_RD"
>> +    },

....

>> +    {
>> +        "ArchStdEvent": "L1D_CACHE_LMISS_RD"
>> +    },
>> +    {
>> +        "ArchStdEvent": "L1D_CACHE_LMISS"
>
> L1D_CACHE_LMISS is not defined anywhere.


Good catch! I must have thought the python script would at least print a 
warning of missing event as I compared the build logs with and without the 
patch. I can prepare a fix for this and submit with another couple of 
patches. I'm hoping to be able to do that by the beginning of next week.

Cheers, Ilkka

>
>> +    },
>> +    {
>> +        "ArchStdEvent": "L1I_CACHE_LMISS"
>> +    },
>> +    {
>> +        "ArchStdEvent": "L2D_CACHE_LMISS_RD"
>> +    }
>> +]
>
>