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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};