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Message-ID: <d3dca311-5f2b-406f-a91b-0c5bf4dcb7ce@linaro.org> Date: Thu, 20 Nov 2025 09:19:25 +0000 From: James Clark <james.clark@...aro.org> To: Namhyung Kim <namhyung@...nel.org>, Will Deacon <will@...nel.org> Cc: Catalin Marinas <catalin.marinas@....com>, Mark Rutland <mark.rutland@....com>, Jonathan Corbet <corbet@....net>, Marc Zyngier <maz@...nel.org>, Oliver Upton <oliver.upton@...ux.dev>, Joey Gouly <joey.gouly@....com>, Suzuki K Poulose <suzuki.poulose@....com>, Zenghui Yu <yuzenghui@...wei.com>, Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, Arnaldo Carvalho de Melo <acme@...nel.org>, Alexander Shishkin <alexander.shishkin@...ux.intel.com>, Jiri Olsa <jolsa@...nel.org>, Ian Rogers <irogers@...gle.com>, Adrian Hunter <adrian.hunter@...el.com>, Leo Yan <leo.yan@....com>, Anshuman Khandual <anshuman.khandual@....com>, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org, linux-doc@...r.kernel.org, kvmarm@...ts.linux.dev Subject: Re: [PATCH v10 0/5] perf: arm_spe: Armv8.8 SPE features On 20/11/2025 1:54 am, Namhyung Kim wrote: > Hello, > > On Tue, Nov 11, 2025 at 11:37:54AM +0000, James Clark wrote: >> Support SPE_FEAT_FDS data source filtering. > > What's the state of this series? I can merge the tools part (3, 4, 5) > once the kernel part lands somewhere. > > Thanks, > Namhyung > The SPE driver part was blocked on Peter's ack for the config4 change. He's given it now so Will should be able to take the driver. Thanks James >> >> --- >> Changes in v10: >> - Pick up Peter's ack >> - Slightly clarify commit message regarding the difference between the >> data source filter and the data source >> - Link to v9: https://lore.kernel.org/r/20251029-james-perf-feat_spe_eft-v9-0-d22536b9cf94@linaro.org >> >> Changes in v9: >> - Fix another typo in docs: s/data_src_filter/inv_data_src_filter/g >> - Drop already applied patches for other features. Only the data source >> filtering patches remain. >> - Rebase on latest perf-tools-next >> - Link to v8: https://lore.kernel.org/r/20250901-james-perf-feat_spe_eft-v8-0-2e2738f24559@linaro.org >> >> Changes in v8: >> - Define __spe_vers_imp before it's used >> - "disable traps to PMSDSFR" -> "disable traps of PMSDSFR to EL2" >> - Link to v7: https://lore.kernel.org/r/20250814-james-perf-feat_spe_eft-v7-0-6a743f7fa259@linaro.org >> >> Changes in v7: >> - Fix typo in docs: s/data_src_filter/inv_data_src_filter/g >> - Pickup trailers >> - Link to v6: https://lore.kernel.org/r/20250808-james-perf-feat_spe_eft-v6-0-6daf498578c8@linaro.org >> >> Changes in v6: >> - Rebase to resolve conflict with BRBE changes in el2_setup.h >> - Link to v5: https://lore.kernel.org/r/20250721-james-perf-feat_spe_eft-v5-0-a7bc533485a1@linaro.org >> >> Changes in v5: >> - Forgot to pickup tags from v4 >> - Forgot to drop test and review tags on v4 patches that were >> significantly modified >> - Update commit message for data source filtering to mention inversion >> - Link to v4: https://lore.kernel.org/r/20250721-james-perf-feat_spe_eft-v4-0-0a527410f8fd@linaro.org >> >> Changes in v4: >> - Rewrite "const u64 feat_spe_eft_bits" inline >> - Invert data source filter so that it's possible to exclude all data >> sources without adding an additional 'enable filter' flag >> - Add a macro in el2_setup.h to check for an SPE version >> - Probe valid filter bits instead of hardcoding them >> - Take in Leo's commit to expose the filter bits as it depends on the >> new filter probing >> - Link to v3: https://lore.kernel.org/r/20250605-james-perf-feat_spe_eft-v3-0-71b0c9f98093@linaro.org >> >> Changes in v3: >> - Use PMSIDR_EL1_FDS instead of 1 << PMSIDR_EL1_FDS_SHIFT >> - Add VNCR offsets >> - Link to v2: https://lore.kernel.org/r/20250529-james-perf-feat_spe_eft-v2-0-a01a9baad06a@linaro.org >> >> Changes in v2: >> - Fix detection of FEAT_SPE_FDS in el2_setup.h >> - Pickup Marc Z's sysreg change instead which matches the json >> - Restructure and expand docs changes >> - Link to v1: https://lore.kernel.org/r/20250506-james-perf-feat_spe_eft-v1-0-dd480e8e4851@linaro.org >> >> --- >> James Clark (5): >> perf: Add perf_event_attr::config4 >> perf: arm_spe: Add support for filtering on data source >> tools headers UAPI: Sync linux/perf_event.h with the kernel sources >> perf tools: Add support for perf_event_attr::config4 >> perf docs: arm-spe: Document new SPE filtering features >> >> drivers/perf/arm_spe_pmu.c | 37 +++++++++++ >> include/uapi/linux/perf_event.h | 2 + >> tools/include/uapi/linux/perf_event.h | 2 + >> tools/perf/Documentation/perf-arm-spe.txt | 104 +++++++++++++++++++++++++++--- >> tools/perf/tests/parse-events.c | 13 +++- >> tools/perf/util/parse-events.c | 11 ++++ >> tools/perf/util/parse-events.h | 1 + >> tools/perf/util/parse-events.l | 1 + >> tools/perf/util/pmu.c | 8 +++ >> tools/perf/util/pmu.h | 1 + >> 10 files changed, 170 insertions(+), 10 deletions(-) >> --- >> base-commit: 081006b7c8e19406dc6674c6b6d086764d415b5c >> change-id: 20250312-james-perf-feat_spe_eft-66cdf4d8fe99 >> >> Best regards, >> -- >> James Clark <james.clark@...aro.org> >>
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