[Intel-gfx] [PATCH igt] igt/perf_pmu: Combine rc6/rc6p tests

[Chris Wilson]

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.
-Chris