diff options
| -rw-r--r-- | Documentation/devicetree/bindings/arc/pct.txt | 20 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/arc/pmu.txt | 24 | ||||
| -rw-r--r-- | arch/arc/boot/dts/angel4.dts | 2 | ||||
| -rw-r--r-- | arch/arc/kernel/perf_event.c | 4 |
4 files changed, 23 insertions, 27 deletions
diff --git a/Documentation/devicetree/bindings/arc/pct.txt b/Documentation/devicetree/bindings/arc/pct.txt new file mode 100644 index 000000000000..7b9588444f20 --- /dev/null +++ b/Documentation/devicetree/bindings/arc/pct.txt @@ -0,0 +1,20 @@ +* 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"; +}; diff --git a/Documentation/devicetree/bindings/arc/pmu.txt b/Documentation/devicetree/bindings/arc/pmu.txt deleted file mode 100644 index 49d517340de3..000000000000 --- a/Documentation/devicetree/bindings/arc/pmu.txt +++ /dev/null @@ -1,24 +0,0 @@ -* ARC Performance Monitor Unit - -The ARC 700 can be configured with a pipeline performance monitor for counting -CPU and cache events like cache misses and hits. - -Note that: - * ARC 700 refers to a family of ARC processor cores; - - There is only one type of PMU available for the whole family; - - The PMU may support different sets of events; supported events are probed - at boot time, as required by the reference manual. - - * The ARC 700 PMU 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-pmu" - -Example: - -pmu { - compatible = "snps,arc700-pmu"; -}; diff --git a/arch/arc/boot/dts/angel4.dts b/arch/arc/boot/dts/angel4.dts index 757e0c62c4f9..3b076fbd8366 100644 --- a/arch/arc/boot/dts/angel4.dts +++ b/arch/arc/boot/dts/angel4.dts @@ -64,7 +64,7 @@ }; arcpmu0: pmu { - compatible = "snps,arc700-pmu"; + compatible = "snps,arc700-pct"; }; }; }; diff --git a/arch/arc/kernel/perf_event.c b/arch/arc/kernel/perf_event.c index 109118a4245e..165e0b604167 100644 --- a/arch/arc/kernel/perf_event.c +++ b/arch/arc/kernel/perf_event.c @@ -346,7 +346,7 @@ static int arc_pmu_device_probe(struct platform_device *pdev) #ifdef CONFIG_OF static const struct of_device_id arc_pmu_match[] = { - { .compatible = "snps,arc700-pmu" }, + { .compatible = "snps,arc700-pct" }, {}, }; MODULE_DEVICE_TABLE(of, arc_pmu_match); @@ -354,7 +354,7 @@ MODULE_DEVICE_TABLE(of, arc_pmu_match); static struct platform_driver arc_pmu_driver = { .driver = { - .name = "arc700-pmu", + .name = "arc700-pct", .of_match_table = of_match_ptr(arc_pmu_match), }, .probe = arc_pmu_device_probe, |