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

Alexander Mishurov alexander.m.mishurov at gmail.com
Mon May 23 22:20:49 UTC 2016


This is the output of a kldloading the latest commit. Nothing changed 
from user's point of view, just couple of lines from the previous output 
disappeared.

May 24 00:57:31 fbsd kernel: [drm] Initialized drm 1.1.0 20060810
May 24 00:57:31 fbsd kernel: bus_register unimplemented!!!
May 24 00:57:31 fbsd kernel:
May 24 00:57:31 fbsd kernel: [drm:drm_pci_init]
May 24 00:57:31 fbsd kernel: drmn0: <drmn> on vgapci0
May 24 00:57:31 fbsd kernel: [drm:drm_get_pci_dev]
May 24 00:57:31 fbsd kernel: vgapci0:
May 24 00:57:31 fbsd kernel: child drmn0 requested pci_enable_io
May 24 00:57:31 fbsd kernel: vgapci0: child drmn0 requested pci_enable_io
May 24 00:57:31 fbsd kernel: [drm:drm_minor_register]
May 24 00:57:31 fbsd kernel: [drm:drm_minor_register] new minor 
registered 64
May 24 00:57:31 fbsd kernel: [drm:drm_minor_register]
May 24 00:57:31 fbsd kernel: [drm:drm_minor_register] new minor 
registered 128
May 24 00:57:31 fbsd kernel: [drm:drm_minor_register]
May 24 00:57:31 fbsd kernel: [drm:drm_minor_register]
May 24 00:57:31 fbsd kernel: new minor registered 0
May 24 00:57:31 fbsd kernel: [drm:i915_dump_device_info] i915 device 
info: gen=7, pciid=0x0f31 rev=0x00 
flags=is_mobile,need_gfx_hws,is_valleyview,has_hotplug,


On 23/05/2016 23:43, Matthew Macy wrote:
>
>   ---- On Mon, 23 May 2016 13:39:42 -0700 Alexander Mishurov<alexander.m.mishurov at gmail.com>  wrote ----
>   > I'm experiencing the same issue. The keyboard works only in the terminal
>   > where a kldload was launched from, if I try to log in to another
>   > terminal, Alt+F(x), it doesn't respond on a typing.
>   >
>   > My hardware is Bay Trail, ValleyView.
>   >
>   > Output is:
>   > May 22 18:05:12 fbsd kernel: [drm] Initialized drm 1.1.0 20060810
>   > May 22 18:05:12 fbsd kernel: bus_register unimplemented!!!
>   > May 22 18:05:12 fbsd kernel:
>   > May 22 18:05:12 fbsd kernel: [drm:drm_pci_init]
>   > May 22 18:05:12 fbsd kernel: drmn0: <drmn> on vgapci0
>   > May 22 18:05:12 fbsd kernel: [drm:drm_get_pci_dev]
>   > May 22 18:05:12 fbsd kernel: simple_pin_fs is dodgy -- see your local
>   > kernel hacker
>   > May 22 18:05:12 fbsd kernel: vgapci0: child drmn0 requested pci_enable_io
>   > May 22 18:05:12 fbsd kernel: vgapci0: child drmn0 requested pci_enable_io
>   > May 22 18:05:12 fbsd kernel: [drm:drm_minor_register]
>   > May 22 18:05:12 fbsd kernel: [drm:drm_minor_register] new minor
>   > registered 64
>   > May 22 18:05:12 fbsd kernel: [drm:drm_minor_register]
>   > May 22 18:05:12 fbsd kernel: [drm:drm_minor_register] new minor
>   > registered 128
>   > May 22 18:05:12 fbsd kernel: [drm:drm_minor_register]
>   > May 22 18:05:12 fbsd kernel: [drm:drm_minor_register] new minor registered 0
>   > May 22 18:05:12 fbsd kernel: __pm_runtime_resume not implemented -- see
>   > your local kernel hacker
>   > May 22 18:05:12 fbsd kernel: [drm:i915_dump_device_info] i915 device
>   > info: gen=7, pciid=0x0f31 rev=0x00
>   > flags=is_mobile,need_gfx_hws,is_valleyview,has_hotplug,
>   > May 22 18:05:24 fbsd kernel: ath0: ath_edma_rxbuf_alloc:
>   > bf=0xfffffe00010dfbc8, rxbuf alloc failed! error=55
>   > May 22 18:05:24 fbsd kernel: ath0: ath_edma_rxfifo_alloc: Q1: alloc
>   > failed: i=0, nbufs=128?
>   > May 22 18:05:24 fbsd kernel: ath0: ath_edma_rxbuf_alloc:
>   > bf=0xfffffe00010dfef8, rxbuf alloc failed! error=55
>   > May 22 18:05:24 fbsd kernel: ath0: ath_edma_rxfifo_alloc: Q1: alloc
>   > failed: i=0, nbufs=128?
>
> It's probably not fixed, but please try the latest. Based on what I see there I'll instrument the attach path.
>
> (ath(9) doesn't look so happy either).
>
> -M
>
>
>   > On 23/05/16 23:28, Lundberg, Johannes wrote:
>   > >> 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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