Messages in this thread | | | Date | Wed, 24 Jun 2009 22:40:20 +1000 | From | Paul Mackerras <> | Subject | Re: register_timer_hook use in arch/sh/oprofile |
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Paul Mundt writes:
> Yes, that all works fine. My comment was more in reference to the > hardware performance counters that don't have IRQs of their own, which > still need to be tied in to the perf_counter API.
For them you would need to check in hw_perf_counter_init() that counter->attr.sample_period is zero, and fail with an -EINVAL error if it isn't.
Paul.
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