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Date:      Thu, 23 Apr 2020 11:36:19 +0200
From:      Emmanuel Vadot <manu@bidouilliste.com>
To:        Frederic Chardon <chardon.frederic@gmail.com>
Cc:        Jan Beich <jbeich@freebsd.org>, Niclas Zeising <zeising+freebsd@daemonic.se>, freebsd-x11@freebsd.org, FreeBSD Questions Mailing List <freebsd-questions@freebsd.org>
Subject:   Re: Wayland on FreeBSD
Message-ID:  <20200423113619.846772c919fece1861a8cca7@bidouilliste.com>
In-Reply-To: <CAMODbkkhW=uY7J3i55SQED7Sv1Tv_bwCYXzWq-tmRNzeTH=jdA@mail.gmail.com>
References:  <CAFYkXjmfyLZAi1HZe-RE3wLxa6GRNP6GkmtZG-4T2puRDOz0JA@mail.gmail.com> <o8rn-snio-wny@FreeBSD.org> <CAMODbkmL5PT0Q3inE=o9T2T-Gw-d6_JcHCXZSYpfm_UGdXfzxg@mail.gmail.com> <6c7abdcf-aeef-4af4-b8f4-9d7fd0e45cf0@localhost> <7fba319c-c012-8893-3ce0-e2a166c38d2d@daemonic.se> <CAMODbkkGvUUwXqzFieyM-MMwQiRu2b6L1hmvgMn9MchDkpB7ig@mail.gmail.com> <d082-pa3p-wny@FreeBSD.org> <CAMODbknWFRzru+1Ej3XGV6fUmdKRQB-wUf-3bEqqrQJryw37MQ@mail.gmail.com> <wo6a-ouni-wny@FreeBSD.org> <CAMODbkkreoL=RsUF9B9z1pVtL2SMK+aXA6Z+YY1xcZP4h8U9rQ@mail.gmail.com> <lfmp-rhno-wny@FreeBSD.org> <CAMODbkk0pr0cbxKJ51RG2jqEWA+Cg07ZNzO3bdgqoLh2QJDHuA@mail.gmail.com> <sggv-lgjn-wny@FreeBSD.org> <CAMODbk=bpMZQVskTKCMAZNMbyXk6Vt=w1G0RLAO+4i4f_3yV_g@mail.gmail.com> <d07z-rvwn-wny@FreeBSD.org> <CAMODbkkhW=uY7J3i55SQED7Sv1Tv_bwCYXzWq-tmRNzeTH=jdA@mail.gmail.com>

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On Thu, 23 Apr 2020 11:24:37 +0200
Frederic Chardon <chardon.frederic@gmail.com> wrote:

> Le jeu. 23 avr. 2020 =E0 00:35, Jan Beich <jbeich@freebsd.org> a =E9crit :
> >
> > Frederic Chardon <chardon.frederic@gmail.com> writes:
> >
> > > Le mer. 22 avr. 2020 =E0 16:51, Jan Beich <jbeich@freebsd.org> a =E9c=
rit :
> > >
> > >>
> > >> Frederic Chardon <chardon.frederic@gmail.com> writes:
> > >>
> > >> > Le lun. 20 avr. 2020 =E0 23:06, Jan Beich <jbeich@freebsd.org> a =
=E9crit :
> > >> >
> > >> >>
> > >> >> Frederic Chardon <chardon.frederic@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 acceler=
ation
> > >> >> > concerns only Xwayland, whereas wayland itself is accelerated ?
> > >> >>
> > >> >> Yep. Check which ioctls fail then try to reproduce outside of Mes=
a 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 t=
he
> > >> > 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?
>=20
> 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

 major/minor are irrelevent on FreeBSD, upstream code now don't care
about them and should properly detect the node type.
 I haven't followed the whole thread as it's a typical mailing list
thread that switched to troll and unreleated content. Can someone
explain what is the problem that you have please ?

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--=20
Emmanuel Vadot <manu@bidouilliste.com>



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