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1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)2%YAML 1.23---4$id: http://devicetree.org/schemas/perf/spe-pmu.yaml#5$schema: http://devicetree.org/meta-schemas/core.yaml#6 7title: ARMv8.2 Statistical Profiling Extension (SPE) Performance Monitor Units (PMU)8 9maintainers:10 - Will Deacon <will@kernel.org>11 12description:13 ARMv8.2 introduces the optional Statistical Profiling Extension for collecting14 performance sample data using an in-memory trace buffer.15 16properties:17 compatible:18 const: arm,statistical-profiling-extension-v119 20 interrupts:21 maxItems: 122 description: |23 The PPI to signal SPE events. For heterogeneous systems where SPE is only24 supported on a subset of the CPUs, please consult the arm,gic-v3 binding25 for details on describing a PPI partition.26 27additionalProperties: false28 29required:30 - compatible31 - interrupts32 33examples:34 - |35 #include <dt-bindings/interrupt-controller/arm-gic.h>36 37 spe-pmu {38 compatible = "arm,statistical-profiling-extension-v1";39 interrupts = <GIC_PPI 5 IRQ_TYPE_LEVEL_HIGH>;40 };41