Re: [yocto] Adding Vulkan to core-image-weston

[Alexander Kanavin <alex.kanavin@gmail.com>]

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You need to check the Mesa recipe to see how the build options are defined,
and add swrast to the list of vulkan drivers if necessary. Meson_options
only defines available options in Mesa, not the actual set used in yocto.

Alex

On Mon 19. Sep 2022 at 15.40, Edgar Mobile <heideggm@hotmail.com> wrote:

> Is editing meson_options.txt the recommended way to customize Mesa in
> Yocto?
>
> ------------------------------
> *From:* Alexander Kanavin <alex.kanavin@gmail.com>
> *Sent:* Monday, September 19, 2022 2:36 PM
>
> *To:* Edgar Mobile <heideggm@hotmail.com>
> *Cc:* yocto@lists.yoctoproject.org <yocto@lists.yoctoproject.org>
> *Subject:* Re: [yocto] Adding Vulkan to core-image-weston
>
> You do, yes. It’s not qemu, it’s in Mesa. You can see the options here:
> https://gitlab.freedesktop.org/mesa/mesa/-/blob/main/meson_options.txt
>
>
> Alex
>
> On Mon 19. Sep 2022 at 15.30, Edgar Mobile <heideggm@hotmail.com> wrote:
>
> What are the qemu params to activate swrast vulkan driver? And do I still
> need mesa vulkan package? meson logs show it wasnt't compiled with
> vulkan-drivers.
>
> ------------------------------
> *From:* Alexander Kanavin <alex.kanavin@gmail.com>
> *Sent:* Monday, September 19, 2022 2:20 PM
>
> *To:* Edgar Mobile <heideggm@hotmail.com>
> *Cc:* yocto@lists.yoctoproject.org <yocto@lists.yoctoproject.org>
> *Subject:* Re: [yocto] Adding Vulkan to core-image-weston
>
> I think swrast Vulkan driver may be a better option to start with. At
> least that is contained entirely in qemu guest so you won’t have to wrestle
> with pass through code paths to the host which are all experimental. It’s
> entirely uncharted waters for me as well.
>
> Alex
>
> On Mon 19. Sep 2022 at 14.52, Edgar Mobile <heideggm@hotmail.com> wrote:
>
> For the time being I use vulkan-tools so I get vulkaninfo. It fails
> apparently due to no appropriate driver available.
> I think adding virtio-experimental to mesa may be necessary, right? Or is
> there another core recipse that will add mesa vulkan drivers?
>
> Regards
>
> ------------------------------
> *From:* Alexander Kanavin <alex.kanavin@gmail.com>
> *Sent:* Monday, September 19, 2022 1:31 PM
>
> *To:* Edgar Mobile <heideggm@hotmail.com>
> *Cc:* yocto@lists.yoctoproject.org <yocto@lists.yoctoproject.org>
> *Subject:* Re: [yocto] Adding Vulkan to core-image-weston
>
> As I said you need to inspect the working directory of the recipe to find
> out what goes where.
>
>
> Alex
>
> On Mon 19. Sep 2022 at 13.28, Edgar Mobile <heideggm@hotmail.com> wrote:
>
> I have the impression that the only binary vulkan-samples installs is
> /usr/bin/spirv-cross . Are there other packages that install more samples?
>
> ------------------------------
> *From:* Alexander Kanavin <alex.kanavin@gmail.com>
> *Sent:* Monday, September 19, 2022 8:25 AM
>
> *To:* Edgar Mobile <heideggm@hotmail.com>
> *Cc:* yocto@lists.yoctoproject.org <yocto@lists.yoctoproject.org>
> *Subject:* Re: [yocto] Adding Vulkan to core-image-weston
>
> I suppose you need to look at compile and install logs for vulkan-samples.
> And how the installed items get split into packages. I’m short, inspect
> ${WORKDIR} for it.
>
> Alex
>
> On Mon 19. Sep 2022 at 9.36, Edgar Mobile <heideggm@hotmail.com> wrote:
>
> Greetings,
>
> I see the libvulkan.so.* libs now, but I don't see any sample binaries
> that look like Vulkan. Is there a list somewhere for all the files in
> vulkan-samples?
> Regards
>
> ------------------------------
> *From:* Alexander Kanavin <alex.kanavin@gmail.com>
> *Sent:* Saturday, September 17, 2022 8:28 AM
>
> *To:* Edgar Mobile <heideggm@hotmail.com>
> *Cc:* yocto@lists.yoctoproject.org <yocto@lists.yoctoproject.org>
> *Subject:* Re: [yocto] Adding Vulkan to core-image-weston
>
> If the samples don't link with libvulkan directly, it won't get pulled
> into the images. How are they loading that library, is it via dlopen()
> somewhere? Invisible dlopen() dependencies typically need to be listed
> explicitly in RDEPENDS.
>
> As a quick fix, you can add vulkan-loader to the same
> CORE_IMAGE_EXTRA_INSTALL list.
>
> Alex
>
> On Fri, 16 Sept 2022 at 19:17, Edgar Mobile <heideggm@hotmail.com> wrote:
> >
> > Ok, so I switched to Kirkstone and added vulkan-samples to
> CORE_IMAGE_EXTRA_INSTALL.
> > But no libvulkan.so in /usr/lib.
> >
> > Am I missing something?
> >
> > ________________________________
> > From: Alexander Kanavin <alex.kanavin@gmail.com>
> > Sent: Friday, September 16, 2022 12:14 PM
> > To: Edgar Mobile <heideggm@hotmail.com>
> > Cc: yocto@lists.yoctoproject.org <yocto@lists.yoctoproject.org>
> > Subject: Re: [yocto] Adding Vulkan to core-image-weston
> >
> > You can start by adding vulkan-samples to the image - the recipe is in
> > core. We do not test vulkan in qemu, because the software vulkan
> > rendering is still under active development, and marked as
> > experimental in virglrenderer.
> >
> > It may help if you use qemux86_64 and kvm for it, because software
> > graphical paths are too slow without it generally.
> >
> > Alex
> >
> > On Fri, 16 Sept 2022 at 13:43, Edgar Mobile <heideggm@hotmail.com>
> wrote:
> > >
> > > Greetings,
> > >
> > > I'd like to test graphics rendering with Vulkan on an Aarch64 Yocto
> honister (qemu, host is x64). Can you tell me which parameters I need to
> add to local.conf to get all libs and headers installed (plus maybe some
> useful tools and demo if present)?
> > >
> > > Regards
> > >
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>
>

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