From: Thierry Reding <thierry.reding@gmail.com>
To: Karol Herbst <kherbst@redhat.com>
Cc: Daniel Kolesa <daniel@octaforge.org>,
James Jones <jajones@nvidia.com>,
Thierry Reding <treding@nvidia.com>,
Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>,
dri-devel <dri-devel@lists.freedesktop.org>
Subject: Re: [git pull] drm for 5.8-rc1
Date: Fri, 14 Aug 2020 15:54:58 +0200 [thread overview]
Message-ID: <20200814135458.GB556087@ulmo> (raw)
In-Reply-To: <CACO55tu1RWZ0ZGcMcrU-snT3CkJtwxawwJ9990-5a+hpByh-Hw@mail.gmail.com>
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On Thu, Aug 13, 2020 at 03:00:37PM +0200, Karol Herbst wrote:
> At least for now I've created an MR to revert the change:
> https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6300
>
> But it seems like there was probably a good reason why it got added?
> Happy to have better fixes, but that's the best we've got so far I
> think?
>
> Thierry, what do you think?
I did find the following via my mailbox (finally collecting all those
emails is paying off =):
https://lists.freedesktop.org/archives/mesa-dev/2018-May/196026.html
Cc'ing Daniel on the off chance that he remembers what the use-case was.
I vaguely recall that Daniel was pointing out an issue on IRC that
caused a series of fixes, including this change. Given that this was all
done because of framebuffer modifiers, I think my earlier hunch about
this being related to the case of non-modifier userspace is correct and
we do run into issues with userspace that doesn't use framebuffer
modifiers at all. In that case we basically have to assume pitch-linear
because userspace will use DRM_IOCTL_MODE_ADDFB, which doesn't support
modifiers.
Thierry
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next prev parent reply other threads:[~2020-08-14 13:55 UTC|newest]
Thread overview: 103+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-02 6:06 [git pull] drm for 5.8-rc1 Dave Airlie
2020-06-02 6:06 ` Dave Airlie
2020-06-02 21:21 ` Linus Torvalds
2020-06-02 21:21 ` Linus Torvalds
2020-06-02 21:22 ` Linus Torvalds
2020-06-02 21:22 ` Linus Torvalds
2020-06-02 21:56 ` Linus Torvalds
2020-06-02 21:56 ` Linus Torvalds
2020-06-03 7:18 ` Thomas Zimmermann
2020-06-03 7:18 ` Thomas Zimmermann
2020-06-03 7:43 ` Daniel Vetter
2020-06-03 7:43 ` Daniel Vetter
2020-06-02 22:14 ` Linus Torvalds
2020-06-02 22:14 ` Linus Torvalds
2020-06-02 23:03 ` Dave Airlie
2020-06-02 23:03 ` Dave Airlie
2020-06-02 22:20 ` pr-tracker-bot
2020-06-02 22:20 ` pr-tracker-bot
2020-06-03 20:13 ` Jason Gunthorpe
2020-06-03 20:13 ` Jason Gunthorpe
2020-06-04 8:10 ` Christian König
2020-06-04 8:10 ` Christian König
2020-06-04 8:13 ` Christoph Hellwig
2020-06-30 23:08 ` Kirill A. Shutemov
2020-06-30 23:08 ` Kirill A. Shutemov
2020-07-01 4:40 ` James Jones
2020-07-01 4:40 ` James Jones
2020-07-01 7:57 ` Kirill A. Shutemov
2020-07-01 7:57 ` Kirill A. Shutemov
2020-07-01 7:59 ` Kirill A. Shutemov
2020-07-01 7:59 ` Kirill A. Shutemov
2020-07-01 19:45 ` James Jones
2020-07-01 19:45 ` James Jones
2020-07-02 7:36 ` Daniel Vetter
2020-07-02 7:36 ` Daniel Vetter
2020-07-02 7:59 ` Pekka Paalanen
2020-07-02 7:59 ` Pekka Paalanen
2020-07-02 8:22 ` Daniel Stone
2020-07-02 8:22 ` Daniel Stone
2020-07-02 21:14 ` James Jones
2020-07-02 21:14 ` James Jones
2020-07-03 6:01 ` James Jones
2020-07-03 6:01 ` James Jones
2020-07-03 7:16 ` Daniel Vetter
2020-07-03 7:16 ` Daniel Vetter
2020-07-13 1:37 ` Dave Airlie
2020-07-14 14:31 ` James Jones
2020-08-04 8:58 ` Karol Herbst
2020-08-12 0:19 ` James Jones
2020-08-12 10:27 ` Karol Herbst
2020-08-12 10:43 ` Karol Herbst
2020-08-12 12:24 ` Karol Herbst
2020-08-12 12:37 ` Ilia Mirkin
2020-08-12 17:03 ` James Jones
2020-08-12 17:10 ` Karol Herbst
2020-08-12 17:19 ` James Jones
2020-08-12 17:40 ` Alyssa Rosenzweig
2020-08-12 18:24 ` James Jones
2020-08-12 18:51 ` Karol Herbst
2020-08-13 13:00 ` Karol Herbst
2020-08-13 15:39 ` Karol Herbst
2020-08-13 17:19 ` Karol Herbst
2020-08-13 17:45 ` James Jones
2020-08-13 17:48 ` Karol Herbst
2020-08-14 13:57 ` Thierry Reding
2020-08-14 13:59 ` Karol Herbst
2020-08-14 14:10 ` Thierry Reding
2020-08-14 14:05 ` Thierry Reding
2020-08-14 14:44 ` Karol Herbst
2020-08-14 15:34 ` Thierry Reding
2020-08-14 15:40 ` Karol Herbst
2020-08-14 16:06 ` Thierry Reding
2020-08-14 16:12 ` Karol Herbst
2020-08-14 16:22 ` Thierry Reding
2020-08-14 17:17 ` Daniel Stone
2020-08-14 17:25 ` Daniel Vetter
2020-08-18 14:37 ` Thierry Reding
2020-09-01 7:13 ` Daniel Vetter
2020-09-01 10:42 ` Daniel Stone
2020-09-01 10:59 ` Karol Herbst
2020-09-01 14:42 ` James Jones
2020-08-14 14:08 ` Thierry Reding
2020-08-14 14:45 ` Karol Herbst
2020-08-14 15:24 ` Thierry Reding
2020-08-14 15:43 ` Karol Herbst
2020-08-14 13:54 ` Thierry Reding [this message]
2020-08-14 13:40 ` Thierry Reding
2020-08-14 13:56 ` Karol Herbst
2020-08-12 15:05 ` Thierry Reding
2020-08-12 15:20 ` Karol Herbst
2020-08-12 15:49 ` Karol Herbst
2020-07-01 11:24 ` Karol Herbst
2020-07-01 11:24 ` Karol Herbst
2020-07-01 15:51 ` James Jones
2020-07-01 15:51 ` James Jones
2020-07-01 16:01 ` Daniel Vetter
2020-07-01 16:01 ` Daniel Vetter
2020-07-01 17:04 ` Karol Herbst
2020-07-01 17:04 ` Karol Herbst
2020-07-01 17:37 ` James Jones
2020-07-01 17:37 ` James Jones
2020-07-01 18:08 ` Karol Herbst
2020-07-01 18:08 ` Karol Herbst
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