Wayland on FreeBSD

[Frederic Chardon]

Le jeu. 23 avr. 2020 à 00:35, Jan Beich <jbeich at freebsd.org> a écrit :
>
> Frederic Chardon <chardon.frederic at gmail.com> writes:
>
> > Le mer. 22 avr. 2020 à 16:51, Jan Beich <jbeich at freebsd.org> a écrit :
> >
> >>
> >> Frederic Chardon <chardon.frederic at gmail.com> writes:
> >>
> >> > Le lun. 20 avr. 2020 à 23:06, Jan Beich <jbeich at freebsd.org> a écrit :
> >> >
> >> >>
> >> >> Frederic Chardon <chardon.frederic at gmail.com> writes:
> >> >>
> >> >> >
> >> >> > The trace shows usage of llvmpipe after the failed ioctl on
> >> >> > /dev/dri/card0, so as I understand the lack of hardware acceleration
> >> >> > concerns only Xwayland, whereas wayland itself is accelerated ?
> >> >>
> >> >> Yep. Check which ioctls fail then try to reproduce outside of Mesa or
> >> >> hardcode the result. Overriding PCI ID via INTEL_DEVID_OVERRIDE is
> >> >> unlikely to help e.g.,
> >> >
> >> > All below failure occurs only in xwayland, X11 and wayland succeed.
> >> >
> >> > The first failure is with I915_PARAM_CHIPSET_ID. When I hardcode the
> >> > correct ID I get a failure with I915_PARAM_HAS_RELAXED_DATA. When I
> >> > force the result to be true (as with X11 and Wayland), the ioctl
> >> > DRM_I915_GEM_EXECBUFFER2_WR fails with errno EPERM.
> >>
> >> Thanks for investigating. Maybe either DRM_AUTH or DRM_RENDER_ALLOW fails.
> >> Does setuid bit on Xwayland binary help?
> > Yes, hardware acceleration works. eglinfo still complain about invalid
> > 0xffffffff PCI ID though
> >
> >> Does disabling render node help
> >> e.g., chmod 0000 /dev/dri/renderD128 ?
> > No
> >
> > What helps however is to mount the different linux filesystems after
> > i915kms is loaded.
> > eg I added "late" keyword to fstab as below
> > devfs   /compat/linux/dev     devfs     rw,late 0 0
> > fdesc /compat/linux/dev/fd  fdescfs   rw,late,linrdlnk 0 0
> > linproc /compat/linux/proc    linprocfs rw,late 0 0
> > linsys  /compat/linux/sys     linsysfs  rw,late 0 0
> >
> > without the late keyword, acceleration works if devfs alone is
> > mounted. any other fs (with or without devfs) makes Xwayland use
> > software rendering.
> > As with setuid Xwayland, eglinfo complains about invalid PCI ID.
>
> manu@ fixed major/minor usage upstream. Can you try the following patch?

No change. major are still different, minor doesn't have the 0x80 bit
set, and hw accel is disabled if I mount linux pseudofs before kldload
i915kms