[Linaro-mm-sig] Split GEM from the rest of DRM

[jcrouse at codeaurora.org]

> On Fri, Apr 22, 2011 at 6:29 AM, Bridgman, John <John.Bridgman at amd.com>
> wrote:
>>>> I remember Dave Airlie proposed something that sounded similar for the
>>>> upstream DRM, with options for display, graphics and compute, so maybe
>>>> this is something that could fit upstream fairly easily ?
>>
>>>something like this sounds like what we want.. does someone have a
>> link to the proposal handy?  I've no desire to re-invent the wheel
>> unnecessarily
>>
>> I wasn't able to find it, hoping Dave remembers. I think it was from
>> late 2007 or early 2008 but not sure.
>>
>> It even had diagrams so it deserves to be remembered ;)
>
> My plan was to split the interface across a few device nodes,
>
> Though not so much the functionality, there would a control device
> node for root only configuration of render nodes, then render nodes
> would have a subset of the modesetting caps + accel functionality, or
> just accel functionality for compute.
>
> So its not exactly the same area as this.

At this risk of contributing to design creep, I love this idea.
It sounds like it would suit itself well to a design with multiple
GPU cores.

Perhaps this is something that can be re-introduced as part of a
parallel discussion.

Jordan