[PATCH] dri2proto: add prime protocol support. (v2.1)

[Kristian Høgsberg]

On Fri, Jul 6, 2012 at 9:41 AM, Dave Airlie <airlied at gmail.com> wrote:
> On Fri, Jul 6, 2012 at 2:32 PM, Kristian Høgsberg <krh at bitplanet.net> wrote:
>> On Fri, Jul 6, 2012 at 6:27 AM, Dave Airlie <airlied at gmail.com> wrote:
>>> From: Dave Airlie <airlied at redhat.com>
>>>
>>> So we reserve bits 16->19 for offload device ids, this means we can
>>> have 6 offload devices, which is plenty for now, and we can bump
>>> this further later without fear.
>>>
>>> v2: I suck at maths, that is all. Fixed up the maths to match reality.
>>> v2.1: fix typo
>>
>> Looks fine to me.  Is there a version bump that goes along with this
>> so drivers can know they can ask for prime devices or should they just
>> try and expect a NULL reply if it's not available?
>
> Drivers don't ever know about prime, its all hidden in the
> server/libGL/dri2 layers.

Ah, I meant client side / aiglx there, ie how does the caller know
that there are prime device types available.  But just asking and
getting NULL sounds fine.

Kristian