linux-kernel - [PATCH 0/4] perf mem amd: Fix few logic bugs

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Date:   Tue, 13 Jun 2023 15:25:02 +0530
From:   Ravi Bangoria <ravi.bangoria@....com>
To:     <acme@...nel.org>
CC:     <ravi.bangoria@....com>, <irogers@...gle.com>, <jolsa@...nel.org>,
        <namhyung@...nel.org>, <mark.rutland@....com>,
        <peterz@...radead.org>, <adrian.hunter@...el.com>,
        <kan.liang@...ux.intel.com>, <james.clark@....com>,
        <alisaidi@...zon.com>, <leo.yan@...aro.org>, <maddy@...ux.ibm.com>,
        <linux-perf-users@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <sandipan.das@....com>, <ananth.narayan@....com>,
        <santosh.shukla@....com>
Subject: [PATCH 0/4] perf mem amd: Fix few logic bugs

Recent pmu refactoring changes[1] introduced a notion of core vs other
pmus and made perf mem/c2c code depend only on core pmus, which is
logically wrong for AMD as perf mem/c2c on AMD depends on IBS OP pmu,
not the core pmu. Although user visible perf mem/c2c functionality is
still working fine, internal code logic is wrong. Fix those.

[1] https://lore.kernel.org/r/20230527072210.2900565-1-irogers@google.com

Ravi Bangoria (4):
  perf pmus: Describe semantics of 'core_pmus' and 'other_pmus'
  perf tool x86: Consolidate is_amd check into single function
  perf mem amd: Fix perf_pmus__num_mem_pmus()
  perf mem amd: Scan all PMUs instead of just core ones

 tools/perf/arch/x86/util/Build        |  1 +
 tools/perf/arch/x86/util/env.c        | 19 +++++++++++++++++++
 tools/perf/arch/x86/util/env.h        |  7 +++++++
 tools/perf/arch/x86/util/evsel.c      | 16 ++--------------
 tools/perf/arch/x86/util/mem-events.c | 24 +++++++-----------------
 tools/perf/arch/x86/util/pmu.c        | 15 +++++++++++++++
 tools/perf/util/mem-events.c          | 16 ++++++++++++----
 tools/perf/util/mem-events.h          |  1 +
 tools/perf/util/pmus.c                | 15 ++++++++++++++-
 9 files changed, 78 insertions(+), 36 deletions(-)
 create mode 100644 tools/perf/arch/x86/util/env.c
 create mode 100644 tools/perf/arch/x86/util/env.h

-- 
2.40.1