On Sat, Nov 9, 2019 at 9:08 PM Stefan Hajnoczi wrote:
>
> On Sat, Nov 9, 2019 at 12:17 PM Tomasz Figa wrote:
> > On Sat, Nov 9, 2019 at 7:12 PM Stefan Hajnoczi wrote:
> > > On Sat, Nov 9, 2019 at 2:41 AM Stéphane Marchesin
> > > wrote:
> > > > On Th
On Sat, Nov 9, 2019 at 7:12 PM Stefan Hajnoczi wrote:
>
> On Sat, Nov 9, 2019 at 2:41 AM Stéphane Marchesin
> wrote:
> >
> > On Thu, Nov 7, 2019 at 11:35 PM Stefan Hajnoczi wrote:
> > >
> > > On Fri, Nov 8, 2019 at 8:22 AM Gerd Hoffmann wrote:
> > > > > > Adding a list of common properties to
On Thu, Nov 7, 2019 at 10:09 PM Dmitry Sepp wrote:
>
> Hello Gerd,
>
> Thank you for your feedback.
>
> There is no relationship between those. As I mentioned earlier. we have also
> been working on a virtio video device at the same time. And there is no
> relationship between the two specs.
>
>
On Fri, Nov 8, 2019 at 4:50 PM Gerd Hoffmann wrote:
>
> On Thu, Nov 07, 2019 at 02:09:34PM +0100, Dmitry Sepp wrote:
> > Hello Gerd,
> >
> > Thank you for your feedback.
> >
> > There is no relationship between those. As I mentioned earlier. we have also
> > been working on a virtio video device
On Thu, Nov 21, 2019 at 6:41 AM Geoffrey McRae wrote:
>
>
>
> On 2019-11-20 23:13, Tomasz Figa wrote:
> > Hi Geoffrey,
> >
> > On Thu, Nov 7, 2019 at 7:28 AM Geoffrey McRae
> > wrote:
> >>
> >>
> >>
> >> On 2019-11-06 23:
On Mon, Dec 16, 2019 at 7:32 PM Gerd Hoffmann wrote:
>
> Hi,
>
> > > Hmm, modern GPUs support both encoding and decoding ...
> >
> > Many SoC architectures have completely separate IP blocks for encoding
> > and decoding. Similarly, in GPUs those are usually completely separate
> > parts of the
On Wed, Dec 4, 2019 at 6:16 PM Gerd Hoffmann wrote:
>
> Hi,
>
> > 1. Focus on only decoder/encoder functionalities first.
> >
> > As Tomasz said earlier in this thread, it'd be too complicated to support
> > camera
> > usage at the same time. So, I'd suggest to make it just a generic
On Mon, Oct 14, 2019 at 9:19 PM Gerd Hoffmann wrote:
>
> > > Well. I think before even discussing the protocol details we need a
> > > reasonable plan for buffer handling. I think using virtio-gpu buffers
> > > should be an optional optimization and not a requirement. Also the
> > > motivation
On Fri, Oct 11, 2019 at 5:54 PM Dmitry Morozov
wrote:
>
> Hi Tomasz,
>
> On Mittwoch, 9. Oktober 2019 05:55:45 CEST Tomasz Figa wrote:
> > On Tue, Oct 8, 2019 at 12:09 AM Dmitry Morozov
> >
> > wrote:
> > > Hi Tomasz,
> > >
> > > O
On Tue, Oct 15, 2019 at 11:06 PM Dmitry Morozov
wrote:
>
> Hello Gerd,
>
> On Dienstag, 15. Oktober 2019 09:54:22 CEST Gerd Hoffmann wrote:
> > On Mon, Oct 14, 2019 at 03:05:03PM +0200, Dmitry Morozov wrote:
> > > On Montag, 14. Oktober 2019 14:34:43 CEST Gerd Hoffmann wrote:
> > > > Hi,
> > >
On Thu, Oct 17, 2019 at 4:19 PM Gerd Hoffmann wrote:
>
> Hi,
>
> > That said, Chrome OS would use a similar model, except that we don't
> > use ION. We would likely use minigbm backed by virtio-gpu to allocate
> > appropriate secure buffers for us and then import them to the V4L2
> > driver.
>
On Thu, Oct 17, 2019 at 4:44 PM Gerd Hoffmann wrote:
>
> Hi,
>
> > > Also note that the guest manages the address space, so the host can't
> > > simply allocate guest page addresses.
> >
> > Is this really true? I'm not an expert in this area, but on a bare
> > metal system it's the hardware or
Hi Stefan,
On Mon, Nov 18, 2019 at 7:21 PM Stefan Hajnoczi wrote:
>
> On Sat, Nov 9, 2019 at 3:12 PM Tomasz Figa wrote:
> >
> > On Sat, Nov 9, 2019 at 9:08 PM Stefan Hajnoczi wrote:
> > >
> > > On Sat, Nov 9, 2019 at 12:17 PM Tomasz Figa wrote:
> >
On Wed, Nov 6, 2019 at 6:51 PM Gerd Hoffmann wrote:
>
> Hi,
>
> > > Reason is: Meanwhile I'm wondering whenever "just use virtio-gpu
> > > resources" is really a good answer for all the different use cases
> > > we have collected over time. Maybe it is better to have a dedicated
> > > buffer
Hi Geoffrey,
On Thu, Nov 7, 2019 at 7:28 AM Geoffrey McRae wrote:
>
>
>
> On 2019-11-06 23:41, Gerd Hoffmann wrote:
> > On Wed, Nov 06, 2019 at 05:36:22PM +0900, David Stevens wrote:
> >> > (1) The virtio device
> >> > =
> >> >
> >> > Has a single virtio queue, so the guest
Hi Frank,
On Fri, Nov 8, 2019 at 12:10 AM Frank Yang wrote:
>
> So I'm not really sure why people are having issues sharing buffers that live
> on the GPU. Doesn't that show up as some integer ID on the host, and some
> $GuestFramework (dmabuf, gralloc) ID on the guest, and it all works out
r/input/output device.
>
> We would be glad to share our thoughts and contribute to the discussion.
> Please see some comments regarding buffer allocation inline.
>
> Best regards,
> Dmitry.
>
> On Samstag, 5. Oktober 2019 08:08:12 CEST Tomasz Figa wrote:
> > Hi Gerd,
&g
On Tue, Oct 8, 2019 at 12:09 AM Dmitry Morozov
wrote:
>
> Hi Tomasz,
>
> On Montag, 7. Oktober 2019 16:14:13 CEST Tomasz Figa wrote:
> > Hi Dmitry,
> >
> > On Mon, Oct 7, 2019 at 11:01 PM Dmitry Morozov
> >
> > wrote:
> > > Hello,
> >
Hi Gerd,
On Mon, Sep 23, 2019 at 5:56 PM Gerd Hoffmann wrote:
>
> Hi,
>
> > Our prototype implementation uses [4], which allows the virtio-vdec
> > device to use buffers allocated by virtio-gpu device.
>
> > [4] https://lkml.org/lkml/2019/9/12/157
First of all, thanks for taking a look at
On Sat, Dec 21, 2019 at 1:36 PM Keiichi Watanabe wrote:
>
> Hi Dmitry,
>
> On Sat, Dec 21, 2019 at 12:59 AM Dmitry Sepp
> wrote:
> >
> > Hi Keiichi,
> >
> > On Mittwoch, 18. Dezember 2019 14:02:13 CET Keiichi Watanabe wrote:
> > > Hi,
> > > This is the 2nd version of virtio-video patch. The PDF
On Sat, Dec 21, 2019 at 3:18 PM Tomasz Figa wrote:
>
> On Sat, Dec 21, 2019 at 1:36 PM Keiichi Watanabe
> wrote:
> >
> > Hi Dmitry,
> >
> > On Sat, Dec 21, 2019 at 12:59 AM Dmitry Sepp
> > wrote:
> > >
> > > Hi Keiichi,
> > >
On Sat, Dec 21, 2019 at 12:46 AM Dmitry Sepp
wrote:
> On Freitag, 20. Dezember 2019 16:26:50 CET Keiichi Watanabe wrote:
> > On Thu, Dec 19, 2019 at 10:28 PM Dmitry Sepp
> > wrote:
> > > On Mittwoch, 18. Dezember 2019 14:02:14 CET Keiichi Watanabe wrote:
[snip]
> > > > +enum virtio_video_format
On Wed, Dec 18, 2019 at 10:40 PM Gerd Hoffmann wrote:
>
> Hi,
>
> > +The device MUST mark the last buffer with the
> > +VIRTIO_VIDEO_BUFFER_F_EOS flag to denote completion of the drain
> > +sequence.
>
> No, that would build a race condition into the protocol. The device
> could complete the
On Thu, Dec 19, 2019 at 6:26 PM Dmitry Sepp wrote:
>
> Hi Gerd,
>
> On Mittwoch, 18. Dezember 2019 14:40:37 CET Gerd Hoffmann wrote:
> > Hi,
> >
> > > +The device MUST mark the last buffer with the
> > > +VIRTIO_VIDEO_BUFFER_F_EOS flag to denote completion of the drain
> > > +sequence.
> >
> >
On Thu, Dec 19, 2019 at 6:48 PM Dmitry Sepp wrote:
>
> Hi,
>
> On Donnerstag, 19. Dezember 2019 08:46:39 CET Gerd Hoffmann wrote:
> > On Wed, Dec 18, 2019 at 11:08:37PM +0900, Tomasz Figa wrote:
> > > On Wed, Dec 18, 2019 at 10:40 PM Gerd Ho
On Thu, Dec 19, 2019 at 7:55 PM Dmitry Sepp wrote:
>
> Hi Tomasz,
>
> On Donnerstag, 19. Dezember 2019 10:59:02 CET Tomasz Figa wrote:
> > On Thu, Dec 19, 2019 at 6:48 PM Dmitry Sepp
> wrote:
> > > Hi,
> > >
> > > On Donnerstag, 19. Dezember 2019
Dmitry Sepp
> > > > >
> > > >
> > > > wrote:
> > > > > > Hi,
> > > > > >
> > > > > > On Montag, 6. Januar 2020 11:30:22 CET Keiichi Watanabe wrote:
> > > > > > > Hi Dmitry,
>
> > Ok, let's consider the following case:
> > - the device expects planes in separate buffers.
> > - say, Android on the guest side also imports planes in separate buffers
> > into the driver.
> > - but he driver only supports one buffer + offsets.
> &
On Mon, Jan 13, 2020 at 10:27 PM Gerd Hoffmann wrote:
>
> Hi,
>
> > > Well, no. Tomasz Figa had splitted the devices into three groups:
> > >
> > > (1) requires single buffer.
> > > (2) allows any layout (including the one (1) devices
On Tue, Jan 14, 2020 at 7:35 PM Dmitry Sepp wrote:
>
> Hi Keiichi,
>
> thank you for the update.
>
> On Dienstag, 14. Januar 2020 08:18:50 CET Keiichi Watanabe wrote:
> > Hi,
> >
> > On Thu, Jan 9, 2020 at 11:21 PM Tomasz Figa wrote:
> > > On
On Mon, Dec 30, 2019 at 9:16 PM Dmitry Sepp wrote:
>
>
> On Donnerstag, 19. Dezember 2019 14:28:23 CET Dmitry Sepp wrote:
> > Hi Keiichi,
> >
> > Thank you for the update. Please see some comments below.
> >
> > Also, we need to bring the virtio_video_control back as it is in fact used
> > by the
On Wed, Jan 8, 2020 at 9:15 PM Keiichi Watanabe wrote:
>
> Hi Dmitry,
>
> On Wed, Jan 8, 2020 at 7:00 PM Dmitry Sepp
> wrote:
> >
> > Hi Keiichi,
> >
> > On Mittwoch, 8. Januar 2020 07:59:22 CET Keiichi Watanabe wrote:
> > > Hi Dmitry,
> > >
> > > On Wed, Jan 8, 2020 at 1:50 AM Dmitry Sepp
> >
On Thu, Mar 12, 2020 at 12:48 PM Dmitry Sepp
wrote:
>
> Hi Hans,
>
> One more thing:
>
> > GFP_DMA? That's unusual. I'd expect GFP_DMA32. All V4L2 drivers use that.
>
> GFP_DMA32 had no effect for me on arm64. Probably I need to recheck.
>
What's the reason to use any specific GFP flags at all?
On Wed, Jul 8, 2020 at 6:35 AM Alexandre Courbot wrote:
>
> On Fri, Jul 3, 2020 at 6:55 PM Tomasz Figa wrote:
> >
> > On Fri, Jul 3, 2020 at 11:27 AM Alexandre Courbot
> > wrote:
> > >
> > > On Fri, Jul 3, 2020 at 6:18 PM Michael S. Tsirkin wrote:
>
On Fri, Jul 3, 2020 at 11:27 AM Alexandre Courbot wrote:
>
> On Fri, Jul 3, 2020 at 6:18 PM Michael S. Tsirkin wrote:
> >
> > On Fri, Jul 03, 2020 at 02:45:15PM +0900, Alexandre Courbot wrote:
> > > Hi Dmitry,
> > >
> > > On Thu, Jul 2, 2020 at 10:47 PM Dmitry Sepp
> > > wrote:
> > > >
> > > >
On Sat, May 6, 2023 at 5:12 PM Laurent Pinchart via libcamera-devel
wrote:
>
> Hello,
>
> On Fri, May 05, 2023 at 04:55:33PM +0100, Alex Bennée via libcamera-devel
> wrote:
> > Kieran Bingham writes:
> >
> > > Hi All,
> > >
> > > Coming in late, thanks to lei/lore spotting the libcamera keyword.
36 matches
Mail list logo
