On Wed, 16 Jun 2021 at 16:58, simon <simon@rogue-research.com> wrote:

> - There's a warning about not finding the IRIS driver:
> MESA_LOADER: failed to open iris: /usr/lib/dri/iris_dri.so: cannot open
> shared object file: No such file or directory
> failed to load driver: iris
>
> But from what I was able to understand, I was expecting it would be
> available with mesa 21.0.3 since I've seen some commit about fixing
> issue with it in the change logs.
>
> I've tried to force the driver to both i965 and i915 but I either got a
> warning that this GEN cannot use it or still got the same fps.
> Am I right to assume that it goes to a default driver that uses the CPU
> instead of the GPU?


Hello Simon,

I honestly don't know how Intel folks have overlooked this, but mesa in
yocto not only does not enable iris, the mesa recipe does not even have an
option to enable it.

However, it should be pretty easy to add. Please take a look at
poky/meta/recipes-graphics/mesa/mesa.inc, specificially any lines that
mention GALLIUMDRIVERS and matching PACKAGECONFIG,
and you should be able to add iris there, and rebuild your image. Then you
can submit your first patch to yocto via oe-core mailing list ;)

Alex