41 lines
1.1 KiB
YAML
41 lines
1.1 KiB
YAML
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/perf/spe-pmu.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: ARMv8.2 Statistical Profiling Extension (SPE) Performance Monitor Units (PMU)
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maintainers:
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- Will Deacon <will@kernel.org>
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description:
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ARMv8.2 introduces the optional Statistical Profiling Extension for collecting
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performance sample data using an in-memory trace buffer.
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properties:
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compatible:
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const: arm,statistical-profiling-extension-v1
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interrupts:
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maxItems: 1
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description: |
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The PPI to signal SPE events. For heterogeneous systems where SPE is only
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supported on a subset of the CPUs, please consult the arm,gic-v3 binding
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for details on describing a PPI partition.
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additionalProperties: false
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required:
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- compatible
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- interrupts
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examples:
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- |
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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spe-pmu {
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compatible = "arm,statistical-profiling-extension-v1";
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interrupts = <GIC_PPI 5 IRQ_TYPE_LEVEL_HIGH>;
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};
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