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Message-ID: <CAP-5=fX2uE=B_Vb90nn5EV0mw+AJBpjDecP9w29OUn=j7HKPPg@mail.gmail.com>
Date: Mon, 14 Aug 2023 10:36:08 -0700
From: Ian Rogers <irogers@...gle.com>
To: John Garry <john.g.garry@...cle.com>
Cc: Ilkka Koskinen <ilkka@...amperecomputing.com>,
Arnaldo Carvalho de Melo <acme@...nel.org>,
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>,
Mark Rutland <mark.rutland@....com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Jiri Olsa <jolsa@...nel.org>,
Namhyung Kim <namhyung@...nel.org>,
Adrian Hunter <adrian.hunter@...el.com>,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-perf-users@...r.kernel.org,
Dave Kleikamp <dave.kleikamp@...cle.com>
Subject: Re: [PATCH 1/4] perf vendor events arm64: Remove L1D_CACHE_LMISS from
AmpereOne list
On Fri, Aug 4, 2023 at 4:02 AM John Garry <john.g.garry@...cle.com> wrote:
>
> On 03/08/2023 22:13, Ilkka Koskinen wrote:
> > amperene/cache.json file tried to include L1D_CACHE_LMISS while it
> > doesn't exist in common-and-microarch.json. While this bug doesn't seem to
> > cause issue in newer kernels with jevents.py script, it prevents building
> > older perf tools with the backported patch.
Fwiw, newer perf tool on old kernel should always be fine. But I
understand that if you are trying to build a tree with backports in
it...
>
> jevents.py needs to be improved so it errors on these events which
> cannot be fixed up, like it used to. I'll look to do that when I get a
> chance.
>
> >
> > Fixes: a9650b7f6fc0 ("perf vendor events arm64: Add AmpereOne core PMU events")
> > Reported-by: Dave Kleikamp <dave.kleikamp@...cle.com>
> > Closes: https://urldefense.com/v3/__https://lore.kernel.org/all/76bb2e47-ce44-76ae-838e-53279047084d@oracle.com/__;!!ACWV5N9M2RV99hQ!IlO3yUW8jhm6wp8BJalODmD7WjzJleyREtTWS2pdn90Af5BD3P7g0fTGldbw15pSn49ycWiKpWDysjXw_ECS4XbbJQ$
> > Signed-off-by: Ilkka Koskinen <ilkka@...amperecomputing.com>
>
> Reviewed-by: John Garry <john.g.garry@...cle.com>
Reviewed-by: Ian Rogers <irogers@...gle.com>
Thanks,
Ian
> > ---
> > tools/perf/pmu-events/arch/arm64/ampere/ampereone/cache.json | 3 ---
> > 1 file changed, 3 deletions(-)
> >
> > diff --git a/tools/perf/pmu-events/arch/arm64/ampere/ampereone/cache.json b/tools/perf/pmu-events/arch/arm64/ampere/ampereone/cache.json
> > index fc0633054211..7a2b7b200f14 100644
> > --- a/tools/perf/pmu-events/arch/arm64/ampere/ampereone/cache.json
> > +++ b/tools/perf/pmu-events/arch/arm64/ampere/ampereone/cache.json
> > @@ -92,9 +92,6 @@
> > {
> > "ArchStdEvent": "L1D_CACHE_LMISS_RD"
> > },
> > - {
> > - "ArchStdEvent": "L1D_CACHE_LMISS"
> > - },
> > {
> > "ArchStdEvent": "L1I_CACHE_LMISS"
> > },
>
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