forked from rrcarlosr/Jetpack
22 lines
791 B
Plaintext
22 lines
791 B
Plaintext
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NVIDIA Carmel Uncore PMU
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========================
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This driver supports hardware perfmon event counting for the 4 L2 clusters
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and for the L3. The supported events are standard ARM L2/L3 event numbering,
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but shifted and masked with a unit number for the sake of granular unit
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tracking. The event format is EEU, where 'EE' is the standard ARM event number
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and U is the unit (0-3 for the L2s, 4 for the L3).
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Required properties:
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- compatible : "nvidia,carmel-pmu"
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- interrupts : single hardware-specified interrupt
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- interrupt-affinity : this driver must be pinned to Carmel core 0 (cpu@0)
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in order to correctly field PMU interrupts from the L2/L3 units.
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Example:
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carmel-pmu {
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compatible = "nvidia,carmel-pmu";
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interrupts = <0 365 0x4>;
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interrupt-affinity = <&{/cpus/cpu@0}>;
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};
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