[Intel-gfx] [PATCH 1/2] drm/i915: allow userspace forcewake references also on gen7

Eugeni Dodonov eugeni at dodonov.net
Tue Jan 24 15:47:54 CET 2012


On Tue, Jan 24, 2012 at 09:04, Daniel Vetter <daniel at ffwll.ch> wrote:

> On Tue, Jan 24, 2012 at 10:35:04AM +0000, Chris Wilson wrote:
> > On Tue, 24 Jan 2012 09:44:28 +0100, Daniel Vetter <
> daniel.vetter at ffwll.ch> wrote:
> > > We need this to correctly access registers in the gt power well from
> > > userspace.
> >
> > How about a INTEL_INFO(dev)->has_forcewake or check for the
> >  ->forcewake_get? That would be more self-documenting, and we are less
> > likely to miss one in the future, than adding more random generation
> > checks.
>
> I'll jot down a todo to create a cleanup patch for -next that introduce
> some feature flags like has_forcewake has_rc6 and such to avoid such
> gaffles (hopefully).
>

I actually wrote about the very same idea in my previous email :). So +1 to
that!

-- 
Eugeni Dodonov
 <http://eugeni.dodonov.net/>
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