1 * ARM DynamIQ Shared Unit (DSU) Performance Monitor Unit (PMU)
3 ARM DyanmIQ Shared Unit (DSU) integrates one or more CPU cores
4 with a shared L3 memory system, control logic and external interfaces to
5 form a multicore cluster. The PMU enables to gather various statistics on
6 the operations of the DSU. The PMU provides independent 32bit counters that
7 can count any of the supported events, along with a 64bit cycle counter.
8 The PMU is accessed via CPU system registers and has no MMIO component.
10 ** DSU PMU required properties:
12 - compatible : should be one of :
16 - interrupts : Exactly 1 SPI must be listed.
18 - cpus : List of phandles for the CPUs connected to this DSU instance.
24 compatible = "arm,dsu-pmu";
25 interrupts = <GIC_SPI 02 IRQ_TYPE_LEVEL_HIGH>;
26 cpus = <&cpu_0>, <&cpu_1>;