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Subject: Re: [RFC][PATCH 1/3] use new pm_ops in DRM drivers
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reply-To: benh@kernel.crashing.org
To: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>,
       pm list <linux-pm@lists.linux-foundation.org>,
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Date: Fri, 04 Apr 2008 08:47:47 +1100
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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...

Ben.