| * ARMv8.2 Statistical Profiling Extension (SPE) Performance Monitor Units (PMU) |
| |
| ARMv8.2 introduces the optional Statistical Profiling Extension for collecting |
| performance sample data using an in-memory trace buffer. |
| |
| ** SPE Required properties: |
| |
| - compatible : should be one of: |
| "arm,statistical-profiling-extension-v1" |
| |
| - interrupts : Exactly 1 PPI must be listed. 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. |
| |
| ** Example: |
| |
| spe-pmu { |
| compatible = "arm,statistical-profiling-extension-v1"; |
| interrupts = <GIC_PPI 05 IRQ_TYPE_LEVEL_HIGH &part1>; |
| }; |
