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20 lines
710 B
20 lines
710 B
* ARMv8.2 Statistical Profiling Extension (SPE) Performance Monitor Units (PMU) |
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ARMv8.2 introduces the optional Statistical Profiling Extension for collecting |
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performance sample data using an in-memory trace buffer. |
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** SPE Required properties: |
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- compatible : should be one of: |
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"arm,statistical-profiling-extension-v1" |
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- interrupts : Exactly 1 PPI must be listed. For heterogeneous systems where |
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SPE is only supported on a subset of the CPUs, please consult |
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the arm,gic-v3 binding for details on describing a PPI partition. |
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** Example: |
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spe-pmu { |
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compatible = "arm,statistical-profiling-extension-v1"; |
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interrupts = <GIC_PPI 05 IRQ_TYPE_LEVEL_HIGH &part1>; |
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};
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