linux-kernel - [PATCH v2 0/3] perf mem amd: Fix few logic bugs

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Date:   Thu, 15 Jun 2023 10:46:57 +0530
From:   Ravi Bangoria <ravi.bangoria@....com>
To:     <acme@...nel.org>
CC:     <ravi.bangoria@....com>, <irogers@...gle.com>, <jolsa@...nel.org>,
        <namhyung@...nel.org>, <peterz@...radead.org>,
        <james.clark@....com>, <alisaidi@...zon.com>, <leo.yan@...aro.org>,
        <adrian.hunter@...el.com>, <kan.liang@...ux.intel.com>,
        <mark.rutland@....com>, <maddy@...ux.ibm.com>,
        <tmricht@...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 v2 0/3] 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

v1: https://lore.kernel.org/r/20230613095506.547-1-ravi.bangoria@amd.com
v1->v2:
 - Patch #2 of last version is already picked up by Arnaldo. So skip it.
 - Scan all PMUs unconditionally in perf mem code instead of making it
   conditional on arch.

Ravi Bangoria (3):
  perf pmus: Describe semantics of 'core_pmus' and 'other_pmus'
  perf mem amd: Fix perf_pmus__num_mem_pmus()
  perf mem: Scan all PMUs instead of just core ones

 tools/perf/arch/x86/util/pmu.c | 12 ++++++++++++
 tools/perf/util/mem-events.c   | 13 +++++++++----
 tools/perf/util/pmus.c         | 17 ++++++++++++++++-
 3 files changed, 37 insertions(+), 5 deletions(-)

-- 
2.40.1