xref: /freebsd/sys/contrib/device-tree/Bindings/arc/pct.txt (revision acb1f1269c6f4ff89a0d28ba742f6687e9ef779d)
1* ARC Performance Counters
2
3The ARC700 can be configured with a pipeline performance monitor for counting
4CPU and cache events like cache misses and hits. Like conventional PCT there
5are 100+ hardware conditions dynamically mapped to up to 32 counters
6
7Note that:
8 * The ARC 700 PCT does not support interrupts; although HW events may be
9   counted, the HW events themselves cannot serve as a trigger for a sample.
10
11Required properties:
12
13- compatible : should contain
14	"snps,arc700-pct"
15
16Example:
17
18pmu {
19        compatible = "snps,arc700-pct";
20};
21