Update 2 the state of drm-next-4.6 and next steps

[Baptiste Daroussin]

On Wed, May 11, 2016 at 02:29:36AM -0700, Matthew Macy wrote:
> 
> 
> At least to some degree hw accelerated 3d works on the 4.6 i915 driver (which in principle supports up through Kaby lake - I don't yet have anything newer than Haswell).
> 
> https://plus.google.com/114029301710423058970/posts/485LyZegC9B
> 
> I anticipate maintaining all the pieces: linuxkpi, drm, i915, amdgpu, amdkfd as ports for the foreseeable future to make maintenance and continued development simpler.
> 
> I hope to post a call for testers this weekend or early next week.
> 
> Cheers.
> 
> -M
> 
> 
>  ---- On Sun, 24 Apr 2016 13:18:14 -0700 Matthew Macy <mmacy at nextbsd.org> wrote ---- 
>  > 
>  > 
>  > 
>  >  ---- On Tue, 12 Apr 2016 12:57:34 -0700 Matthew Macy <mmacy at nextbsd.org> wrote ---- 
>  >  > There seems to be some confusion about the state of drm-next-3.9. All the work is currently going on in jmd's fork of freebsd-base-graphics:
>  >  > 
>  >  > https://github.com/iotamudelta/freebsd-base-graphics
>  >  > 
>  >  > The emphasis has been on bringing i915 and the drm code  in dev/drm2 closer to upstream as opposed to a simple driver refresh. I'm currently implementing missing linuxkpi bits and hope to actually be testing in the next week or so. 
>  >  > 
>  >  > As of this moment there is nothing available for general consumption. I very much hope to have this phase done before code freeze. I will update the list as soon as there is anything to test. Until then, hold your horses.
>  >  > 
>  > 
>  > X now runs i915kms accelerated on the 3.9 driver update. Currently *only* SNA works.
>  > Known issues:
>  >   -  UXA will fail with: "(EE) failed to create screen resources(EE)". 
>  >        If someone has pointer on how to diagnose other than the usual trawling 
>  >       through Xorg sources let me know. 
>  >   - The module currently leaks memory on unload.
>  > 
>  > 
>  > My general feeling is that unless you have one of the half-dozen Haswell PCIIDS that aren't support by 3.8 it probably isn't worth testing yet. I'm only sending this out to let users track its progress.
>  > 
>  > 
>  > Cheers.
>  > -M
> 

as a follow-up I want to share that I cherry-picked the code from the
drm-next-4.6 branch on the current source tree and I am now happily running my
broadwell laptop with the i915 driver (lenovo x250) so far no problem for normal
usage. I have a few glitches with xrandr but nothing that makes it unusable.

I will test with the next version of xorg server and latest xorg intel driver to
see if that fixes the glitches.

Thnak you all for you work!

Bapt
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