Quoting Mika Kuoppala (2019-02-28 09:08:21)
> Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> writes:
>
> > If we have parked, then we must have passed an idleness test and still
> > be idle. We chose not to use this shortcut in the past so that we could
> > use the idleness test at any time and inspect HW. However, some HW like
> > Sandybridge, doesn't like being woken up frivolously, so avoid doing so.
> >
> > References: 0b702dca2658 ("drm/i915: Avoid waking the engines just to check if they are idle")
> > Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
> > Cc: Mika Kuoppala <mika.kuoppala@xxxxxxxxx>
>
> Reviewed-by: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx>
Ta, let's hope this sticks! :)
-Chris
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