Re: [PATCH/RFC 0/5] HW accel subsystem

Arnd Bergmann
2019-01-26T21:12:05Z

On Fri, Jan 25, 2019 at 7:17 PM Olof Johansson <olof@lixom.net> wrote:
>
> Per discussion in on the Habana Labs driver submission
> (https://lore.kernel.org/lkml/20190123000057.31477-1-oded.gabbay@gmail.com/),
> there seems to be time to create a separate subsystem for hw accellerators
> instead of letting them proliferate around the tree (and/or in misc).
>
> There's difference in opinion on how stringent the requirements are for
> a fully open stack for these kind of drivers. I've documented the middle
> road approach in the first patch (requiring some sort of open low-level
> userspace for the kernel interaction, and a way to use/test it).
>
> Comments and suggestions for better approaches are definitely welcome.

We probably want to move drivers/misc/mic together with the others
as well. We could even move arch/powerpc/platforms/cell/spu*/
for another historic example.

Arnd