|  | * ARC Performance Counters | 
|  |  | 
|  | The ARC700 can be configured with a pipeline performance monitor for counting | 
|  | CPU and cache events like cache misses and hits. Like conventional PCT there | 
|  | are 100+ hardware conditions dynamically mapped to upto 32 counters | 
|  |  | 
|  | Note that: | 
|  | * The ARC 700 PCT does not support interrupts; although HW events may be | 
|  | counted, the HW events themselves cannot serve as a trigger for a sample. | 
|  |  | 
|  | Required properties: | 
|  |  | 
|  | - compatible : should contain | 
|  | "snps,arc700-pct" | 
|  |  | 
|  | Example: | 
|  |  | 
|  | pmu { | 
|  | compatible = "snps,arc700-pct"; | 
|  | }; |