linux-kernel - Re: [PATCH v2 0/8] Refactor cpuid and metric table lookup code

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Message-ID: <CAP-5=fW=RXz-A=xndhs8wkXaKCz-qXB=PemAMvbZpUagvObUoA@mail.gmail.com>
Date: Thu, 14 Nov 2024 10:31:04 -0800
From: Ian Rogers <irogers@...gle.com>
To: Arnaldo Carvalho de Melo <acme@...nel.org>, Namhyung Kim <namhyung@...nel.org>
Cc: John Garry <john.g.garry@...cle.com>, Will Deacon <will@...nel.org>, 
	James Clark <james.clark@...aro.org>, Xu Yang <xu.yang_2@....com>, 
	Mike Leach <mike.leach@...aro.org>, Leo Yan <leo.yan@...ux.dev>, 
	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>, 
	Adrian Hunter <adrian.hunter@...el.com>, Kan Liang <kan.liang@...ux.intel.com>, 
	Paul Walmsley <paul.walmsley@...ive.com>, Palmer Dabbelt <palmer@...belt.com>, 
	Albert Ou <aou@...s.berkeley.edu>, Huacai Chen <chenhuacai@...nel.org>, 
	Bibo Mao <maobibo@...ngson.cn>, Athira Rajeev <atrajeev@...ux.vnet.ibm.com>, 
	Ben Zong-You Xie <ben717@...estech.com>, Alexandre Ghiti <alexghiti@...osinc.com>, 
	Sandipan Das <sandipan.das@....com>, Benjamin Gray <bgray@...ux.ibm.com>, 
	Ravi Bangoria <ravi.bangoria@....com>, Clément Le Goffic <clement.legoffic@...s.st.com>, 
	Yicong Yang <yangyicong@...ilicon.com>, 
	"Masami Hiramatsu (Google)" <mhiramat@...nel.org>, Dima Kogan <dima@...retsauce.net>, 
	"Dr. David Alan Gilbert" <linux@...blig.org>, linux-arm-kernel@...ts.infradead.org, 
	linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-riscv@...ts.infradead.org
Subject: Re: [PATCH v2 0/8] Refactor cpuid and metric table lookup code

On Thu, Nov 7, 2024 at 6:57 PM Xu Yang <xu.yang_2@....com> wrote:
>
> On Thu, Nov 07, 2024 at 08:20:27AM -0800, Ian Rogers wrote:
> > Xu Yang <xu.yang_2@....com> reported issues with the system metric
> > lookup:
> > https://lore.kernel.org/linux-perf-users/20241106085441.3945502-1-xu.yang_2@nxp.com/
> > These patches remove a lot of the logic relating CPUIDs to PMUs so
> > that the PMU isn't part of the question when finding a metric table.
> > For time reasons, it doesn't go as far as allowing system metrics
> > without a metric table as a metric table is needed for metrics to
> > refer to other metrics, and the refactoring of that resolution is a
> > hassle.
>
> For this patchset:
> Tested-by: Xu Yang <xu.yang_2@....com>

Ping. Would be nice for this to land given the ARM fix and general cleanup.

Thanks,
Ian