linux-kernel - Re: [PATCH V2 1/5] powerpc/perf: Expose processor pipeline stage cycles using PERF_SAMPLE_WEIGHT

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Message-ID: <874kgwhh67.fsf@mpe.ellerman.id.au>
Date:   Sun, 28 Mar 2021 00:14:56 +1100
From:   Michael Ellerman <mpe@...erman.id.au>
To:     Arnaldo <arnaldo.melo@...il.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     Madhavan Srinivasan <maddy@...ux.ibm.com>,
        Athira Rajeev <atrajeev@...ux.vnet.ibm.com>,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        linux-perf-users@...r.kernel.org, jolsa@...nel.org,
        ravi.bangoria@...ux.ibm.com, kjain@...ux.ibm.com,
        kan.liang@...ux.intel.com
Subject: Re: [PATCH V2 1/5] powerpc/perf: Expose processor pipeline stage
 cycles using PERF_SAMPLE_WEIGHT_STRUCT

Arnaldo <arnaldo.melo@...il.com> writes:
> On March 25, 2021 11:38:01 AM GMT-03:00, Peter Zijlstra <peterz@...radead.org> wrote:
>>On Thu, Mar 25, 2021 at 10:01:35AM -0300, Arnaldo Carvalho de Melo
>>wrote:.
>>> > > Also for CPU_FTR_ARCH_31, capture the two cycle counter
>>information in
>>> > > two 16 bit fields of perf_sample_weight structure.
>>> > 
>>> > Changes looks fine to me.
>>> > 
>>> > Reviewed-by: Madhavan Srinivasan <maddy@...ux.ibm.com>
>>> 
>>> So who will process the kernel bits? I'm merging the tooling parts,
>>
>>I was sorta expecting these to go through the powerpc tree. Let me know
>>if you want them in tip/perf/core instead.
>
> Shouldn't matter by which tree it gets upstream, as long as it gets picked :-)

I plan to take them, just haven't got around to it yet :}

cheers