linux-kernel - [PATCH v3 00/10] perf: arm

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Message-Id: <20250605-james-perf-feat_spe_eft-v3-0-71b0c9f98093@linaro.org>
Date: Thu, 05 Jun 2025 11:48:58 +0100
From: James Clark <james.clark@...aro.org>
To: Catalin Marinas <catalin.marinas@....com>, 
 Will Deacon <will@...nel.org>, 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>, 
 Namhyung Kim <namhyung@...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@....com
Cc: 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, James Clark <james.clark@...aro.org>
Subject: [PATCH v3 00/10] perf: arm_spe: Armv8.8 SPE features

Support 3 new SPE features: FEAT_SPEv1p4 filters, FEAT_SPE_EFT extended
filtering, and SPE_FEAT_FDS data source filtering. The features are
independent can be applied separately:

  * Prerequisite sysreg changes - patches 1 - 2
  * FEAT_SPEv1p4 - patch 3
  * FEAT_SPE_EFT - patch 4
  * FEAT_SPE_FDS - patches 5 - 8
  * FEAT_SPE_FDS Perf tool changes - patches 9 - 11

The first two features will work with old Perfs but a Perf change to
parse the new config4 is required for the last feature.

To: 

---
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 (10):
      arm64: sysreg: Add new PMSFCR_EL1 fields and PMSDSFR_EL1 register
      perf: arm_spe: Support FEAT_SPEv1p4 filters
      perf: arm_spe: Add support for FEAT_SPE_EFT extended filtering
      arm64/boot: Enable EL2 requirements for SPE_FEAT_FDS
      KVM: arm64: Add trap configs for PMSDSFR_EL1
      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

 Documentation/arch/arm64/booting.rst      |  11 ++++
 arch/arm64/include/asm/el2_setup.h        |  14 +++++
 arch/arm64/include/asm/sysreg.h           |   7 +++
 arch/arm64/include/asm/vncr_mapping.h     |   2 +
 arch/arm64/kvm/emulate-nested.c           |   1 +
 arch/arm64/kvm/sys_regs.c                 |   1 +
 arch/arm64/tools/sysreg                   |  13 +++-
 drivers/perf/arm_spe_pmu.c                | 100 +++++++++++++++++++++++++++++-
 include/uapi/linux/perf_event.h           |   2 +
 tools/include/uapi/linux/perf_event.h     |   2 +
 tools/perf/Documentation/perf-arm-spe.txt |  97 ++++++++++++++++++++++++++---
 tools/perf/tests/parse-events.c           |  14 ++++-
 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 +
 17 files changed, 273 insertions(+), 13 deletions(-)
---
base-commit: ec7714e4947909190ffb3041a03311a975350fe0
change-id: 20250312-james-perf-feat_spe_eft-66cdf4d8fe99

Best regards,
-- 
James Clark <james.clark@...aro.org>