[Intel-gfx] [RESEND] drm/i915: Interactive RPS mode

[Chris Wilson]

Quoting Ville Syrjälä (2018-07-20 14:07:31)
> On Fri, Jul 20, 2018 at 02:02:34PM +0100, Chris Wilson wrote:
> Doing this kind of global thing from the plane hooks seems a bit
> strange. How about just doing this directly from commit_tail()
> etc.?

We want it upfront in prepare (so that it's set before any wait) or
somewhere around there (atomic_state setup?). cleanup was chosen for the
symmetry with prepare.

Pick a spot for the increment for that tells us where to decrement.
-Chris