From: Gerd Hoffmann <kraxel@redhat.com>
To: dri-devel@lists.freedesktop.org, olvaffe@gmail.com,
gurchetansingh@chromium.org, David Airlie <airlied@linux.ie>,
"open list:VIRTIO GPU DRIVER"
<virtualization@lists.linux-foundation.org>,
open list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v4] drm/virtio: add drm_driver.release callback.
Date: Wed, 12 Feb 2020 10:35:43 +0100 [thread overview]
Message-ID: <20200212093543.qg4j2nk5wxlii7wr@sirius.home.kraxel.org> (raw)
In-Reply-To: <20200211142711.GE2363188@phenom.ffwll.local>
On Tue, Feb 11, 2020 at 03:27:11PM +0100, Daniel Vetter wrote:
> On Tue, Feb 11, 2020 at 02:58:04PM +0100, Gerd Hoffmann wrote:
> > Split virtio_gpu_deinit(), move the drm shutdown and release to
> > virtio_gpu_release(). Drop vqs_ready variable, instead use
> > drm_dev_{enter,exit,unplug} to avoid touching hardware after
> > device removal. Tidy up here and there.
> >
> > v4: add changelog.
> > v3: use drm_dev_*().
> >
> > Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
>
> Looks reasonable I think.
>
> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
>
> I didn't review whether you need more drm_dev_enter/exit pairs, virtio is
> a bit more complex for that and I have no idea how exactly it works.
virtio uses two rings to send commands to the device, one to move the
cursor and one for everything else. So pretty much everything ends up
calling either this ...
> > @@ -330,7 +330,14 @@ static void virtio_gpu_queue_ctrl_sgs(struct virtio_gpu_device *vgdev,
... or this ...
> > @@ -460,12 +460,13 @@ static void virtio_gpu_queue_cursor(struct virtio_gpu_device *vgdev,
... to submit some request to the (virtual) hardware. Therefore we
don't need many drm_dev_enter/exit pairs to cover everything ;)
cheers,
Gerd
prev parent reply other threads:[~2020-02-12 9:35 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-11 13:58 Gerd Hoffmann
2020-02-11 14:27 ` Daniel Vetter
2020-02-12 9:35 ` Gerd Hoffmann [this message]
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=20200212093543.qg4j2nk5wxlii7wr@sirius.home.kraxel.org \
--to=kraxel@redhat.com \
--cc=airlied@linux.ie \
--cc=dri-devel@lists.freedesktop.org \
--cc=gurchetansingh@chromium.org \
--cc=linux-kernel@vger.kernel.org \
--cc=olvaffe@gmail.com \
--cc=virtualization@lists.linux-foundation.org \
--subject='Re: [PATCH v4] drm/virtio: add drm_driver.release callback.' \
/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
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).