On Tue, Jul 7, 2015 at 5:05 PM, Ben Skeggs <skeg...@gmail.com> wrote:
> On 8 July 2015 at 06:06, Ilia Mirkin <imir...@alum.mit.edu> wrote:
>> Ben,
>>
>> Looks like the reality is that glamor is just not hooked up properly
>> in the nouveau DDX. Mainly it's missing DRI2, which in turn means no
>> core GL contexts, and probably lots of other issues. While this could
>> probably be fixed somehow, I doubt there's any advantage to using the
>> nouveau DDX over something like modesetting nowadays.
>>
>> How would you feel about dropping glamor support from the nouveau ddx
>> and failing to load for GPUs that don't have EXA support (unless
>> AccelMode = none is forced for them). That way it'll fall back to
>> loading modesetting which should be properly set up for DRI2 and so
>> on.
> I have no objections to this.  In fact, in Fedora at least (I floated
> the idea in #nouveau a while back too), in the near future I plan on
> having the DDX fail to load on all GPUs where modesetting+glamor can
> be used (unless overridden by a config option).

IMHO that's a little strong (I assume you mean nv50+ here?). In fact
I'm planning to complete my Maxwell EXA impl. The current reality is
that modesetting+glamor doesn't render correctly at least on maxwell,
but possibly others as well. The EXA paths are very well tested and
are stable. I think not relying on mesa in the DDX is a nice advantage
too.

  -ilia
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