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Date: Fri, 11 Aug 2023 15:39:17 +0100
From: James Clark <james.clark@....com>
To: linux-perf-users@...r.kernel.org, irogers@...gle.com,
john.g.garry@...cle.com, renyu.zj@...ux.alibaba.com
Cc: James Clark <james.clark@....com>, Will Deacon <will@...nel.org>,
Mike Leach <mike.leach@...aro.org>,
Leo Yan <leo.yan@...aro.org>,
Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...hat.com>,
Arnaldo Carvalho de Melo <acme@...nel.org>,
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>,
Suzuki K Poulose <suzuki.poulose@....com>,
Kan Liang <kan.liang@...ux.intel.com>,
Nick Forrington <nick.forrington@....com>,
Kajol Jain <kjain@...ux.ibm.com>,
Eduard Zingerman <eddyz87@...il.com>,
Sohom Datta <sohomdatta1@...il.com>,
Rob Herring <robh@...nel.org>, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, coresight@...ts.linaro.org
Subject: [PATCH v5 0/6] perf vendor events arm64: Update N2 and V2 metrics and events using Arm telemetry repo
This is a completely new approach from V3 [1], although the metrics and
event descriptions are autogenerated, the topdown metrics have been
manually edited to use #no_stall_errata (now directly comparing on the
CPUID in v5). This removes the need to duplicate the whole set of JSONs
when only the topdown metrics are different between N2 and V2.
The CPU ID comparison function still needs to change so that the new
literal can compare on versions, but now no change is needed to mapfile
or the PMU event generation code because we still only support one
set of JSONs per CPU.
[1]: https://lore.kernel.org/lkml/20230711100218.1651995-1-james.clark@arm.com/
------
Changes since v4:
* Replace the #no_stall_errata literal with a more generic function
for comparing CPU IDs. This will hopefully keep configuration out
of the code and inside the JSONs
Changes since v3:
* Instead of duplicating all the metrics, add a new expression
literal that can be used to share the same metrics between N2 and V2
* Move tests to arch/arm64/tests
* Remove changes from jevents.py and mapfile.csv
Changes since v2:
* version -> variant in second commit message
* Add a bit more detail about version matching in the second commit
message
* Update the comments in pmu-events/arch/arm64/mapfile.csv to say that
variant and revision fields are now used
* Increase the CC list
Changes since v1:
* Split last change into two so it doesn't hit the mailing list size
limit
James Clark (6):
perf: cs-etm: Don't duplicate FIELD_GET()
perf arm64: Allow version comparisons of CPU IDs
perf test: Add a test for the new Arm CPU ID comparison behavior
perf vendor events arm64: Update scale units and descriptions of
common topdown metrics
perf vendor events arm64: Update stall_slot workaround for N2 r0p3
perf vendor events arm64: Update N2 and V2 metrics and events using
Arm telemetry repo
tools/perf/arch/arm64/include/arch-tests.h | 3 +
tools/perf/arch/arm64/tests/Build | 1 +
tools/perf/arch/arm64/tests/arch-tests.c | 4 +
tools/perf/arch/arm64/tests/cpuid-match.c | 38 ++
tools/perf/arch/arm64/util/header.c | 64 ++-
tools/perf/arch/arm64/util/pmu.c | 18 +-
.../arch/arm64/arm/neoverse-n2-v2/branch.json | 8 -
.../arch/arm64/arm/neoverse-n2-v2/bus.json | 18 +-
.../arch/arm64/arm/neoverse-n2-v2/cache.json | 155 --------
.../arm64/arm/neoverse-n2-v2/exception.json | 45 ++-
.../arm/neoverse-n2-v2/fp_operation.json | 22 ++
.../arm64/arm/neoverse-n2-v2/general.json | 10 +
.../arm64/arm/neoverse-n2-v2/instruction.json | 143 -------
.../arm64/arm/neoverse-n2-v2/l1d_cache.json | 54 +++
.../arm64/arm/neoverse-n2-v2/l1i_cache.json | 14 +
.../arm64/arm/neoverse-n2-v2/l2_cache.json | 50 +++
.../arm64/arm/neoverse-n2-v2/l3_cache.json | 22 ++
.../arm64/arm/neoverse-n2-v2/ll_cache.json | 10 +
.../arch/arm64/arm/neoverse-n2-v2/memory.json | 39 +-
.../arm64/arm/neoverse-n2-v2/metrics.json | 365 ++++++++++--------
.../arm64/arm/neoverse-n2-v2/pipeline.json | 23 --
.../arm64/arm/neoverse-n2-v2/retired.json | 30 ++
.../arch/arm64/arm/neoverse-n2-v2/spe.json | 12 +-
.../arm/neoverse-n2-v2/spec_operation.json | 110 ++++++
.../arch/arm64/arm/neoverse-n2-v2/stall.json | 30 ++
.../arch/arm64/arm/neoverse-n2-v2/sve.json | 50 +++
.../arch/arm64/arm/neoverse-n2-v2/tlb.json | 66 ++++
.../arch/arm64/arm/neoverse-n2-v2/trace.json | 27 +-
tools/perf/pmu-events/arch/arm64/sbsa.json | 24 +-
tools/perf/pmu-events/metric.py | 17 +-
tools/perf/util/cs-etm.c | 14 +-
tools/perf/util/expr.c | 18 +
tools/perf/util/expr.h | 1 +
tools/perf/util/expr.l | 1 +
tools/perf/util/expr.y | 8 +-
tools/perf/util/pmu.c | 17 +
tools/perf/util/pmu.h | 1 +
37 files changed, 923 insertions(+), 609 deletions(-)
create mode 100644 tools/perf/arch/arm64/tests/cpuid-match.c
delete mode 100644 tools/perf/pmu-events/arch/arm64/arm/neoverse-n2-v2/branch.json
delete mode 100644 tools/perf/pmu-events/arch/arm64/arm/neoverse-n2-v2/cache.json
create mode 100644 tools/perf/pmu-events/arch/arm64/arm/neoverse-n2-v2/fp_operation.json
create mode 100644 tools/perf/pmu-events/arch/arm64/arm/neoverse-n2-v2/general.json
delete mode 100644 tools/perf/pmu-events/arch/arm64/arm/neoverse-n2-v2/instruction.json
create mode 100644 tools/perf/pmu-events/arch/arm64/arm/neoverse-n2-v2/l1d_cache.json
create mode 100644 tools/perf/pmu-events/arch/arm64/arm/neoverse-n2-v2/l1i_cache.json
create mode 100644 tools/perf/pmu-events/arch/arm64/arm/neoverse-n2-v2/l2_cache.json
create mode 100644 tools/perf/pmu-events/arch/arm64/arm/neoverse-n2-v2/l3_cache.json
create mode 100644 tools/perf/pmu-events/arch/arm64/arm/neoverse-n2-v2/ll_cache.json
delete mode 100644 tools/perf/pmu-events/arch/arm64/arm/neoverse-n2-v2/pipeline.json
create mode 100644 tools/perf/pmu-events/arch/arm64/arm/neoverse-n2-v2/retired.json
create mode 100644 tools/perf/pmu-events/arch/arm64/arm/neoverse-n2-v2/spec_operation.json
create mode 100644 tools/perf/pmu-events/arch/arm64/arm/neoverse-n2-v2/stall.json
create mode 100644 tools/perf/pmu-events/arch/arm64/arm/neoverse-n2-v2/sve.json
create mode 100644 tools/perf/pmu-events/arch/arm64/arm/neoverse-n2-v2/tlb.json
--
2.34.1
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