1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
4 $id: http://devicetree.org/schemas/perf/spe-pmu.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: ARMv8.2 Statistical Profiling Extension (SPE) Performance Monitor Units (PMU)
10 - Will Deacon <will@kernel.org>
13 ARMv8.2 introduces the optional Statistical Profiling Extension for collecting
14 performance sample data using an in-memory trace buffer.
18 const: arm,statistical-profiling-extension-v1
23 The PPI to signal SPE events. For heterogeneous systems where SPE is only
24 supported on a subset of the CPUs, please consult the arm,gic-v3 binding
25 for details on describing a PPI partition.
27 additionalProperties: false
35 #include <dt-bindings/interrupt-controller/arm-gic.h>
38 compatible = "arm,statistical-profiling-extension-v1";
39 interrupts = <GIC_PPI 5 IRQ_TYPE_LEVEL_HIGH>;