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Date:      Wed, 22 Apr 2020 10:23:35 +0200
From:      Frederic Chardon <chardon.frederic@gmail.com>
To:        Jan Beich <jbeich@freebsd.org>
Cc:        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:  <CAMODbkk0pr0cbxKJ51RG2jqEWA+Cg07ZNzO3bdgqoLh2QJDHuA@mail.gmail.com>
In-Reply-To: <lfmp-rhno-wny@FreeBSD.org>
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>

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Le lun. 20 avr. 2020 =C3=A0 23:06, Jan Beich <jbeich@freebsd.org> a =C3=A9c=
rit :
>
> 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 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.

Should I open an issue on drm-kms github? Or it is more likely a
problem on mesa side?

> https://lists.freebsd.org/pipermail/freebsd-x11/2019-January/022551.html
>
> If you still have no clue try playing with sysctls under compat.linuxkpi
> via /boot/loader.conf.

Any hints which ones are worth a try? How did you solve your issue (as
it seems to be pretty similar).

Thanks



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