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