linux-kernel - Re: [PATCH v3 0/4] Add mem_hops field in perf_mem_data

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Date:   Mon, 18 Oct 2021 14:46:18 +1100
From:   Michael Ellerman <mpe@...erman.id.au>
To:     Peter Zijlstra <peterz@...radead.org>,
        Kajol Jain <kjain@...ux.ibm.com>
Cc:     linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        mingo@...hat.com, acme@...nel.org, jolsa@...nel.org,
        namhyung@...nel.org, ak@...ux.intel.com,
        linux-perf-users@...r.kernel.org, maddy@...ux.ibm.com,
        atrajeev@...ux.vnet.ibm.com, rnsastry@...ux.ibm.com,
        yao.jin@...ux.intel.com, ast@...nel.org, daniel@...earbox.net,
        songliubraving@...com, kan.liang@...ux.intel.com,
        mark.rutland@....com, alexander.shishkin@...ux.intel.com,
        paulus@...ba.org
Subject: Re: [PATCH v3 0/4] Add mem_hops field in perf_mem_data_src structure

Peter Zijlstra <peterz@...radead.org> writes:
> On Wed, Oct 06, 2021 at 07:36:50PM +0530, Kajol Jain wrote:
>
>> Kajol Jain (4):
>>   perf: Add comment about current state of PERF_MEM_LVL_* namespace and
>>     remove an extra line
>>   perf: Add mem_hops field in perf_mem_data_src structure
>>   tools/perf: Add mem_hops field in perf_mem_data_src structure
>>   powerpc/perf: Fix data source encodings for L2.1 and L3.1 accesses
>> 
>>  arch/powerpc/perf/isa207-common.c     | 26 +++++++++++++++++++++-----
>>  arch/powerpc/perf/isa207-common.h     |  2 ++
>>  include/uapi/linux/perf_event.h       | 19 ++++++++++++++++---
>>  tools/include/uapi/linux/perf_event.h | 19 ++++++++++++++++---
>>  tools/perf/util/mem-events.c          | 20 ++++++++++++++++++--
>>  5 files changed, 73 insertions(+), 13 deletions(-)
>
> Acked-by: Peter Zijlstra (Intel) <peterz@...radead.org>
>
> How do we want this routed? Shall I take it, or does Michael want it in
> the Power tree?

It's mostly non-powerpc, so I think you should take it.

There's a slim chance we could end up with a conflict in the powerpc
part, but that's no big deal.

cheers