linux-kernel - Re: [PATCH] perf vendor events arm64: Enable JSON events for ThunderX2 B0

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Date:   Wed, 7 Mar 2018 10:36:19 -0500
From:   William Cohen <wcohen@...hat.com>
To:     John Garry <john.garry@...wei.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     Ganapatrao Kulkarni <ganapatrao.kulkarni@...ium.com>,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        alexander.shishkin@...ux.intel.com, jolsa@...hat.com,
        peterz@...radead.org, mingo@...hat.com, Will.Deacon@....com,
        mark.rutland@....com, jnair@...iumnetworks.com,
        Robert.Richter@...ium.com, Linuxarm <linuxarm@...wei.com>
Subject: Re: [PATCH] perf vendor events arm64: Enable JSON events for
 ThunderX2 B0

On 03/07/2018 10:25 AM, John Garry wrote:
> On 07/03/2018 14:38, Arnaldo Carvalho de Melo wrote:
>> Em Wed, Mar 07, 2018 at 09:32:05AM -0500, William Cohen escreveu:
>>> On 03/07/2018 06:08 AM, Ganapatrao Kulkarni wrote:
>>>> There is MIDR change on ThunderX2 B0, adding an entry to mapfile
>>>> to enable JSON events for B0.
>>>>
>>>> Signed-off-by: Ganapatrao Kulkarni <ganapatrao.kulkarni@...ium.com>
>>
>> Ganapatrao, can you please take this in consideration and if agreeing
>> send a v2 patch?
>>
>> With that I can add an Acked-by: wcohen, Right?

With that change I would ack it. -Will

>>
> 
> JFYI, This patch conflicts with "[PATCH v2 00/11] perf events patches for improved ARM64 support". I was planning on sending a v3 quite soon.
> 
>> - Arnaldo
>>>> ---
>>>>  tools/perf/pmu-events/arch/arm64/mapfile.csv | 1 +
>>>>  1 file changed, 1 insertion(+)
>>>>
>>>> diff --git a/tools/perf/pmu-events/arch/arm64/mapfile.csv b/tools/perf/pmu-events/arch/arm64/mapfile.csv
>>>> index e61c9ca..93c5d14 100644
>>>> --- a/tools/perf/pmu-events/arch/arm64/mapfile.csv
>>>> +++ b/tools/perf/pmu-events/arch/arm64/mapfile.csv
>>>> @@ -13,4 +13,5 @@
>>>>  #
>>>>  #Family-model,Version,Filename,EventType
>>>>  0x00000000420f5160,v1,cavium,core
>>>> +0x00000000430f0af0,v1,cavium,core
>>>>  0x00000000410fd03[[:xdigit:]],v1,cortex-a53,core
>>>>
>>>
>>> Hi,
>>> Like the cortex-a53 the last digit '0' of the match for the MIDR should be replaced with [[:xdigit:]] to allow for possible future revisions of chip:
>>>
>>> 0x00000000430f0af[[:xdigit:]],v1,cavium,core
>>>
>>>
>>> -Will Cohen
>>
>> .
> 
> Thanks,
> John
> 
>>
> 
>