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40 lines
1.1 KiB
40 lines
1.1 KiB
# 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 <[email protected]> |
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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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