1* ARMv8.2 Statistical Profiling Extension (SPE) Performance Monitor Units (PMU) 2 3ARMv8.2 introduces the optional Statistical Profiling Extension for collecting 4performance sample data using an in-memory trace buffer. 5 6** SPE Required properties: 7 8- compatible : should be one of: 9 "arm,statistical-profiling-extension-v1" 10 11- interrupts : Exactly 1 PPI must be listed. For heterogeneous systems where 12 SPE is only supported on a subset of the CPUs, please consult 13 the arm,gic-v3 binding for details on describing a PPI partition. 14 15** Example: 16 17spe-pmu { 18 compatible = "arm,statistical-profiling-extension-v1"; 19 interrupts = <GIC_PPI 05 IRQ_TYPE_LEVEL_HIGH &part1>; 20}; 21