From: Gerd Hoffmann <kraxel@redhat.com>
To: Dmitry Sepp <dmitry.sepp@opensynergy.com>
Cc: Keiichi Watanabe <keiichiw@chromium.org>,
virtio-dev@lists.oasis-open.org, linux-media@vger.kernel.org,
acourbot@chromium.org, alexlau@chromium.org, daniel@ffwll.ch,
dgreid@chromium.org, egranata@google.com, fziglio@redhat.com,
hverkuil@xs4all.nl, marcheu@chromium.org, posciak@chromium.org,
spice-devel@lists.freedesktop.org, stevensd@chromium.org,
tfiga@chromium.org, uril@redhat.com
Subject: Re: [PATCH v2 1/1] virtio-video: Add virtio video device specification
Date: Mon, 6 Jan 2020 09:47:01 +0100 [thread overview]
Message-ID: <20200106084701.3v5eew3bh4nh67sc@sirius.home.kraxel.org> (raw)
In-Reply-To: <2358784.0s52YacUgI@os-lin-dmo>
Hi,
> How should one deal with multiplanar formats? Do we create one resource per
> plane? Otherwise we need a way to send mem entries for each plane in one
> request.
DRM uses arrays of handles and offsets (see struct drm_framebuffer). A
handle references a gem object (roughly the same as a resource), and the
offset specifies the start of the plane within the gem object. That
allows both a single gem object with planes stored at different offsets
and one gem object per plane. virtio-video could do the same, or pick
one of the two approaches and support only that.
cheers,
Gerd
WARNING: multiple messages have this Message-ID (diff)
From: Gerd Hoffmann <kraxel@redhat.com>
To: Dmitry Sepp <dmitry.sepp@opensynergy.com>
Cc: Keiichi Watanabe <keiichiw@chromium.org>,
virtio-dev@lists.oasis-open.org, linux-media@vger.kernel.org,
acourbot@chromium.org, alexlau@chromium.org, daniel@ffwll.ch,
dgreid@chromium.org, egranata@google.com, fziglio@redhat.com,
hverkuil@xs4all.nl, marcheu@chromium.org, posciak@chromium.org,
spice-devel@lists.freedesktop.org, stevensd@chromium.org,
tfiga@chromium.org, uril@redhat.com
Subject: [virtio-dev] Re: [PATCH v2 1/1] virtio-video: Add virtio video device specification
Date: Mon, 6 Jan 2020 09:47:01 +0100 [thread overview]
Message-ID: <20200106084701.3v5eew3bh4nh67sc@sirius.home.kraxel.org> (raw)
In-Reply-To: <2358784.0s52YacUgI@os-lin-dmo>
Hi,
> How should one deal with multiplanar formats? Do we create one resource per
> plane? Otherwise we need a way to send mem entries for each plane in one
> request.
DRM uses arrays of handles and offsets (see struct drm_framebuffer). A
handle references a gem object (roughly the same as a resource), and the
offset specifies the start of the plane within the gem object. That
allows both a single gem object with planes stored at different offsets
and one gem object per plane. virtio-video could do the same, or pick
one of the two approaches and support only that.
cheers,
Gerd
---------------------------------------------------------------------
To unsubscribe, e-mail: virtio-dev-unsubscribe@lists.oasis-open.org
For additional commands, e-mail: virtio-dev-help@lists.oasis-open.org
next prev parent reply other threads:[~2020-01-06 8:47 UTC|newest]
Thread overview: 147+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-18 13:02 [PATCH v2 0/1] VirtIO video device specification Keiichi Watanabe
2019-12-18 13:02 ` [virtio-dev] " Keiichi Watanabe
2019-12-18 13:02 ` [PATCH v2 1/1] virtio-video: Add virtio " Keiichi Watanabe
2019-12-18 13:02 ` [virtio-dev] " Keiichi Watanabe
2019-12-18 13:40 ` Gerd Hoffmann
2019-12-18 13:40 ` [virtio-dev] " Gerd Hoffmann
2019-12-18 14:08 ` Tomasz Figa
2019-12-18 14:08 ` Tomasz Figa
2019-12-19 7:46 ` Gerd Hoffmann
2019-12-19 7:46 ` Gerd Hoffmann
2019-12-19 9:48 ` Dmitry Sepp
2019-12-19 9:48 ` Dmitry Sepp
2019-12-19 9:59 ` Tomasz Figa
2019-12-19 9:59 ` Tomasz Figa
2019-12-19 10:54 ` Dmitry Sepp
2019-12-19 10:54 ` Dmitry Sepp
2019-12-19 12:05 ` Tomasz Figa
2019-12-19 12:05 ` Tomasz Figa
2019-12-19 13:12 ` Gerd Hoffmann
2019-12-19 13:12 ` Gerd Hoffmann
2020-01-08 13:52 ` Keiichi Watanabe
2020-01-08 13:52 ` Keiichi Watanabe
2020-01-09 13:40 ` Gerd Hoffmann
2020-01-09 13:40 ` Gerd Hoffmann
2020-01-09 14:20 ` Tomasz Figa
2020-01-09 14:20 ` Tomasz Figa
2020-01-14 7:18 ` Keiichi Watanabe
2020-01-14 7:18 ` Keiichi Watanabe
2020-01-14 10:35 ` Dmitry Sepp
2020-01-14 10:35 ` Dmitry Sepp
2020-01-15 7:49 ` Keiichi Watanabe
2020-01-15 7:49 ` Keiichi Watanabe
2020-01-15 11:12 ` Tomasz Figa
2020-01-15 11:12 ` Tomasz Figa
2019-12-19 13:01 ` Gerd Hoffmann
2019-12-19 13:01 ` Gerd Hoffmann
2020-01-08 13:50 ` Keiichi Watanabe
2020-01-08 13:50 ` Keiichi Watanabe
2019-12-19 9:26 ` Dmitry Sepp
2019-12-19 9:26 ` [virtio-dev] " Dmitry Sepp
2019-12-19 9:59 ` Tomasz Figa
2019-12-19 9:59 ` [virtio-dev] " Tomasz Figa
2019-12-19 12:54 ` Gerd Hoffmann
2019-12-19 12:54 ` [virtio-dev] " Gerd Hoffmann
2019-12-18 17:29 ` Frediano Ziglio
2019-12-20 14:05 ` Keiichi Watanabe
2019-12-20 14:05 ` [virtio-dev] " Keiichi Watanabe
2019-12-20 15:33 ` Dmitry Sepp
2019-12-20 15:33 ` [virtio-dev] " Dmitry Sepp
2019-12-19 13:28 ` Dmitry Sepp
2019-12-19 13:28 ` [virtio-dev] " Dmitry Sepp
2019-12-20 15:26 ` Keiichi Watanabe
2019-12-20 15:26 ` [virtio-dev] " Keiichi Watanabe
2019-12-20 15:46 ` Dmitry Sepp
2019-12-21 6:46 ` Tomasz Figa
2019-12-21 6:46 ` [virtio-dev] " Tomasz Figa
2019-12-30 12:16 ` Dmitry Sepp
2019-12-30 12:16 ` Dmitry Sepp
2020-01-06 6:31 ` Tomasz Figa
2020-01-06 6:31 ` Tomasz Figa
2020-01-06 8:33 ` Gerd Hoffmann
2020-01-06 8:33 ` Gerd Hoffmann
2020-01-06 9:29 ` Dmitry Sepp
2020-01-06 9:29 ` Dmitry Sepp
2020-01-03 15:47 ` Dmitry Sepp
2020-01-03 15:47 ` [virtio-dev] " Dmitry Sepp
2020-01-06 8:47 ` Gerd Hoffmann [this message]
2020-01-06 8:47 ` Gerd Hoffmann
2020-01-06 10:21 ` Keiichi Watanabe
2020-01-06 10:21 ` [virtio-dev] " Keiichi Watanabe
2020-01-06 14:59 ` Dmitry Sepp
2020-01-06 14:59 ` [virtio-dev] " Dmitry Sepp
2020-01-07 13:24 ` Keiichi Watanabe
2020-01-07 13:24 ` [virtio-dev] " Keiichi Watanabe
2020-01-07 16:50 ` Dmitry Sepp
2020-01-07 16:50 ` [virtio-dev] " Dmitry Sepp
2020-01-08 6:59 ` Keiichi Watanabe
2020-01-08 6:59 ` [virtio-dev] " Keiichi Watanabe
2020-01-08 10:00 ` Dmitry Sepp
2020-01-08 10:00 ` [virtio-dev] " Dmitry Sepp
2020-01-08 12:14 ` Keiichi Watanabe
2020-01-08 12:14 ` [virtio-dev] " Keiichi Watanabe
2020-01-08 12:46 ` Tomasz Figa
2020-01-08 12:46 ` [virtio-dev] " Tomasz Figa
2020-01-08 13:05 ` Keiichi Watanabe
2020-01-08 13:05 ` [virtio-dev] " Keiichi Watanabe
2020-01-08 13:11 ` Dmitry Sepp
2020-01-08 13:11 ` [virtio-dev] " Dmitry Sepp
2020-01-08 13:23 ` Keiichi Watanabe
2020-01-08 13:23 ` Keiichi Watanabe
2020-01-08 12:23 ` Keiichi Watanabe
2020-01-08 12:23 ` [virtio-dev] " Keiichi Watanabe
2019-12-20 15:58 ` [PATCH v2 0/1] VirtIO " Dmitry Sepp
2019-12-20 15:58 ` [virtio-dev] " Dmitry Sepp
2019-12-21 4:36 ` Keiichi Watanabe
2019-12-21 4:36 ` [virtio-dev] " Keiichi Watanabe
2019-12-21 6:18 ` Tomasz Figa
2019-12-21 6:18 ` [virtio-dev] " Tomasz Figa
2019-12-21 6:19 ` Tomasz Figa
2019-12-21 6:19 ` [virtio-dev] " Tomasz Figa
2020-01-03 13:05 ` Dmitry Sepp
2020-01-03 13:05 ` [virtio-dev] " Dmitry Sepp
2020-01-06 10:30 ` Keiichi Watanabe
2020-01-06 10:30 ` [virtio-dev] " Keiichi Watanabe
2020-01-06 11:28 ` Dmitry Sepp
2020-01-06 11:28 ` [virtio-dev] " Dmitry Sepp
2020-01-07 10:25 ` Keiichi Watanabe
2020-01-07 10:25 ` [virtio-dev] " Keiichi Watanabe
2020-01-09 14:56 ` Dmitry Sepp
2020-01-09 14:56 ` [virtio-dev] " Dmitry Sepp
2020-01-10 10:16 ` Dmitry Sepp
2020-01-10 10:16 ` Dmitry Sepp
2020-01-10 13:53 ` Keiichi Watanabe
2020-01-10 13:53 ` Keiichi Watanabe
2020-01-10 15:11 ` Dmitry Sepp
2020-01-10 15:11 ` Dmitry Sepp
2020-01-11 16:06 ` Tomasz Figa
2020-01-11 16:06 ` Tomasz Figa
2020-01-13 9:50 ` Dmitry Sepp
2020-01-13 9:50 ` Dmitry Sepp
2020-01-15 11:23 ` Keiichi Watanabe
2020-01-15 11:23 ` Keiichi Watanabe
2020-01-13 9:56 ` Gerd Hoffmann
2020-01-13 9:56 ` Gerd Hoffmann
2020-01-13 10:41 ` Dmitry Sepp
2020-01-13 11:05 ` Gerd Hoffmann
2020-01-13 11:05 ` Gerd Hoffmann
2020-01-13 11:59 ` Tomasz Figa
2020-01-13 11:59 ` Tomasz Figa
2020-01-13 13:26 ` Gerd Hoffmann
2020-01-13 13:26 ` Gerd Hoffmann
2020-01-15 11:00 ` Tomasz Figa
2020-01-15 11:00 ` Tomasz Figa
2020-01-15 11:23 ` Keiichi Watanabe
2020-01-15 11:23 ` Keiichi Watanabe
2020-01-15 11:26 ` Gerd Hoffmann
2020-01-15 11:26 ` Gerd Hoffmann
2020-01-20 7:20 ` Keiichi Watanabe
2020-01-20 7:20 ` Keiichi Watanabe
2020-01-20 10:47 ` Gerd Hoffmann
2020-01-20 10:47 ` Gerd Hoffmann
2020-01-21 2:47 ` Keiichi Watanabe
2020-01-21 2:47 ` Keiichi Watanabe
2020-01-21 6:44 ` Gerd Hoffmann
2020-01-21 6:44 ` Gerd Hoffmann
2020-01-21 8:56 ` Keiichi Watanabe
2020-01-21 8:56 ` Keiichi Watanabe
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200106084701.3v5eew3bh4nh67sc@sirius.home.kraxel.org \
--to=kraxel@redhat.com \
--cc=acourbot@chromium.org \
--cc=alexlau@chromium.org \
--cc=daniel@ffwll.ch \
--cc=dgreid@chromium.org \
--cc=dmitry.sepp@opensynergy.com \
--cc=egranata@google.com \
--cc=fziglio@redhat.com \
--cc=hverkuil@xs4all.nl \
--cc=keiichiw@chromium.org \
--cc=linux-media@vger.kernel.org \
--cc=marcheu@chromium.org \
--cc=posciak@chromium.org \
--cc=spice-devel@lists.freedesktop.org \
--cc=stevensd@chromium.org \
--cc=tfiga@chromium.org \
--cc=uril@redhat.com \
--cc=virtio-dev@lists.oasis-open.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.