[Intel-gfx] [PATCH] drm/i915: get runtime PM reference around GEM set_caching IOCTL

[Chris Wilson]

On Wed, Nov 04, 2015 at 09:25:32PM +0200, Imre Deak wrote:
> After Damien's D3 fix I started to get runtime suspend residency for the
> first time and that revealed a breakage on the set_caching IOCTL path
> that accesses the HW but doesn't take an RPM ref. Fix this up.

Why here (and in so many random places) and not around the PTE write
itself?
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre