[Intel-gfx] [PATCH 2/2] drm/i915/pmu: Use GT parked for estimating RC6 while asleep

[Chris Wilson]

Quoting Chris Wilson (2019-08-01 19:26:57)
> As we track when we put the GT device to sleep upon idling, we can use
> that callback to sample the current rc6 counters and record the
> timestamp for estimating samples after that point while asleep.
> 

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105010
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> Cc: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
-Chris