On 24/11/2017 09:24, Chris Wilson wrote:
Quoting Chris Wilson (2017-11-24 09:23:22)
How? How do you tell if rc6 is not incrementing because (a) the hw is
busy, (b) the hw is idle but in a different rc6 state, or (c) the pmu is
broken.
Case in point is rc6p on shard-snb, where rc6p is disabled but the
pmu event still exists. It disabled by the kernel itself, but since the
pmu exists we expect it to increment.
You mean I should be checking for more than HAS_RC6p when allowing an
event to be opened?
If I can fix that, then I was thinking the rc6p subtest would just need
to be updated to only open the RC6p counter, and rc6 subtest would only
open the RC6 one.
Or RC6 not incrementing while in RC6p is only true on some platforms?
Or I am not understanding something which is possible.
Regards,
Tvrtko
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