tree 479111c25b0c7826256450875a028324eb6239df
parent c8d9a5905e45d856fb21cce2e20f186ce6719560
author Deepak S <deepak.s@intel.com> 1385198743 +0530
committer Daniel Vetter <daniel.vetter@ffwll.ch> 1385623905 +0100

drm/i915/vlv: Valleyview support for forcewake Individual power wells.

Split vlv force wake routines to help individually control Media/Render
well based on the register access.

We've seen power savings in the lower sub-1W range on workloads that
only need on of the power wells, e.g. glbenchmark, media playback

Note: The same split isn't there for the forcewake queue, only the
forcwake domains are split.

Signed-off-by: Deepak S <deepak.s@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[danvet: Rebase on top of the removed forcewake hack in the ring irq
get/put code and add a note to add Deepak's answer to Chris question.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>