[mirror_ubuntu-hirsute-kernel.git] / Documentation / devicetree / bindings / arc / pct.txt

* 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 up to 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";
};
Commit	Line	Data
30fdd373 VG	1	* ARC Performance Counters
	2
	3	The ARC700 can be configured with a pipeline performance monitor for counting
	4	CPU and cache events like cache misses and hits. Like conventional PCT there
da67e68c	5	are 100+ hardware conditions dynamically mapped to up to 32 counters
30fdd373 VG	6
	7	Note 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
	11	Required properties:
	12
	13	- compatible : should contain
	14	"snps,arc700-pct"
	15
	16	Example:
	17
	18	pmu {
	19	compatible = "snps,arc700-pct";
	20	};