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SubjectRe: [PATCH v6 07/11] drivers: perf: hisi: Add support for Hisilicon SoC event counters
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On Tuesday 21 March 2017 10:22 PM, Mark Rutland wrote:
> +static int hisi_hw_perf_event_init(struct perf_event *event)
> >+{
> >+ struct hw_perf_event *hwc = &event->hw;
> >+ struct hisi_pmu *hisi_pmu = to_hisi_pmu(event->pmu);
> >+ struct device *dev = hisi_pmu->dev;
>> +
>> >+ /*
>> >+ * We must NOT create groups containing mixed PMUs, although
>> >+ * software events are acceptable
>> >+ */
>> >+ if (event->group_leader->pmu != event->pmu &&
>> >+ !is_software_event(event->group_leader))
>> >+ return -EINVAL;
>> >+
>> >+ list_for_each_entry(sibling, &event->group_leader->sibling_list,
>> >+ group_entry)
>> >+ if (sibling->pmu != event->pmu && !is_software_event(sibling))
>> >+ return -EINVAL;
> Please also check the number of counters.

Sorry, I could not follow this comment correctly. Could you please explain ?
I check the available counters and update used mask in pmu_add -->
get_event_index

Thanks,
Anurup

> [...]
>

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