On Wed, 16 Jun 2021 09:38:14 +0200, Maciej Kwapulinski wrote:

after consulting, we will try to share api and some kernel code between the two drivers.

We prepared a prototype work based on Daniel Vetter’s invitation to evaluate DRM framework as prospective fit.

Early results look quite promising. Effective leverage of DRM framework for non GPU driver has been achieved. GNA driver source code turned out to have been simplified by offloading some areas (device management + memory regions management).

As a result, GNA driver source code size has been reduced by 15% (420 lines). DRM Framework complexity has not been an issue so far.

Plan for next step is to publish code to dri-devel ML. Please share your thoughts.

Regards, Maciej