[PATCH] [rfc] drm: add some caps for userspace to discover more info for dumb KMS driver

[Eric Anholt]

On Thu, 29 Sep 2011 16:26:32 +0100, Dave Airlie <airlied at gmail.com> wrote:
> From: Dave Airlie <airlied at redhat.com>
> 
> For the simple KMS driver case we need some more info about argb cursor
> limits and a preferred depth and if shadowed framebuffer access is preferred.
> 
> I've only added this for intel/radeon which support the dumb ioctls so far.
> 
> I really don't want to expose a truck load of info, just enough for X to
> start without configuration with a hw cursor.
> 
> If you need something really fancy you should be writing a real X.org driver.

Would prefer_shadow ever be 0?

Isn't preferred_depth just a static (non-driver-specific) preference
list like "24, 30, 16, 15, 8" or something?  Do we not expose the list
of supported depths somewhere else?
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