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From: Jesse Barnes <jbarnes@virtuousgeek.org>
To: benh@kernel.crashing.org
Subject: Re: [RFC][PATCH 1/3] use new pm_ops in DRM drivers
Date: Thu, 3 Apr 2008 16:48:59 -0700
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On Thursday, April 03, 2008 2:47 pm Benjamin Herrenschmidt wrote:
> On Thu, 2008-04-03 at 11:50 -0700, Jesse Barnes wrote:
> > +static struct pm_ops i915_pm_ops = {
> > +       .prepare = NULL, /* DRM core should prevent any new ioctls? */
> > +       .complete = NULL, /* required to re-enable DRM client requests
> > */
>
> The DRM core could definitely provide generic prepare & complete that
> sync'up with user space, making sure the command streams stop etc...

Yeah, that's what I had in mind.  I'll have to think a little harder about it 
though, I think there may be some driver specific stuff required here as 
well, which would mean a driver routine that calls into a core routine (both 
of which still need to be written :).

Jesse