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

[Lundberg, Johannes]

>happily running my broadwell laptop

That's interesting. On my Cherry View dev board which is also Broadwell
graphics (I think) I get some output from kldload i915kms but then it
halts. USB keyboard still works (as in I can press enter and console
scrolls up) but no response from OS.

I do get some message about bus_register something missing..

Maybe not ready for testing?


On Sat, May 21, 2016 at 4:17 PM, Baptiste Daroussin <bapt at freebsd.org>
wrote:

> 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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