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