linux-kernel - [PATCH v1 0/7] Refactor cpuid and metric table lookup code

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Message-Id: <20241107071600.9082-1-irogers@google.com>
Date: Wed,  6 Nov 2024 23:15:53 -0800
From: Ian Rogers <irogers@...gle.com>
To: John Garry <john.g.garry@...cle.com>, Will Deacon <will@...nel.org>, 
	James Clark <james.clark@...aro.org>, Mike Leach <mike.leach@...aro.org>, 
	Leo Yan <leo.yan@...ux.dev>, Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, 
	Arnaldo Carvalho de Melo <acme@...nel.org>, Namhyung Kim <namhyung@...nel.org>, 
	Mark Rutland <mark.rutland@....com>, 
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>, Jiri Olsa <jolsa@...nel.org>, 
	Ian Rogers <irogers@...gle.com>, 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>, Xu Yang <xu.yang_2@....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: [PATCH v1 0/7] Refactor cpuid and metric table lookup code

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.

Ian Rogers (7):
  perf header: Move is_cpu_online to numa bench
  perf header: Refactor get_cpuid to take a CPU for ARM
  perf arm64 header: Use cpu argument in get_cpuid
  perf header: Avoid transitive PMU includes
  perf header: Pass a perf_cpu rather than a PMU to get_cpuid_str
  perf jevents: Add map_for_cpu
  perf pmu: Move pmu_metrics_table__find and remove ARM override

 tools/perf/arch/arm64/util/arm-spe.c     | 14 +---
 tools/perf/arch/arm64/util/header.c      | 73 ++++++++++-----------
 tools/perf/arch/arm64/util/pmu.c         | 20 ------
 tools/perf/arch/loongarch/util/header.c  |  4 +-
 tools/perf/arch/powerpc/util/header.c    |  4 +-
 tools/perf/arch/riscv/util/header.c      |  4 +-
 tools/perf/arch/s390/util/header.c       |  6 +-
 tools/perf/arch/x86/util/auxtrace.c      |  3 +-
 tools/perf/arch/x86/util/header.c        |  5 +-
 tools/perf/bench/numa.c                  | 51 +++++++++++++++
 tools/perf/builtin-kvm.c                 |  4 +-
 tools/perf/pmu-events/empty-pmu-events.c | 39 ++++++-----
 tools/perf/pmu-events/jevents.py         | 39 ++++++-----
 tools/perf/pmu-events/pmu-events.h       |  2 +-
 tools/perf/tests/expr.c                  |  5 +-
 tools/perf/util/env.c                    |  4 +-
 tools/perf/util/expr.c                   |  6 +-
 tools/perf/util/header.c                 | 82 ++++++++----------------
 tools/perf/util/header.h                 | 23 +++----
 tools/perf/util/pmu.c                    | 25 --------
 tools/perf/util/pmu.h                    |  2 -
 tools/perf/util/probe-event.c            |  1 +
 22 files changed, 187 insertions(+), 229 deletions(-)

-- 
2.47.0.199.ga7371fff76-goog