1 * ARM Performance Monitor Units
3 ARM cores often have a PMU for counting cpu and cache events like cache misses
4 and hits. The interface to the PMU is part of the ARM ARM. The ARM PMU
5 representation in the device tree should be done as under:-
9 - compatible : should be one of
22 "qcom,scorpion-mp-pmu"
24 - interrupts : 1 combined interrupt or 1 per core. If the interrupt is a per-cpu
25 interrupt (PPI) then 1 interrupt should be specified.
29 - interrupt-affinity : Valid only when using SPIs, specifies a list of phandles
30 to CPU nodes corresponding directly to the affinity of
31 the SPIs listed in the interrupts property.
33 This property should be present when there is more than
36 - qcom,no-pc-write : Indicates that this PMU doesn't support the 0xc and 0xd
42 compatible = "arm,cortex-a9-pmu";
43 interrupts = <100 101>;