[PATCH] drm/panfrost: Add "compute shader only" hint

[Alyssa Rosenzweig]

> > It's not obvious to me when it actually needs to be enabled. Besides the
> > errata, it's only when... device_nr=1 for a compute-only job in kbase?
> >
> > I'm afraid I don't know nearly enough about how kbase plumbs CL to grok
> > the signifiance...
> 
> Figuring out the nr_core_groups was the complicated part of this as I
> recall. Seems like we should at least figure out if we (or will need)
> PANFROST_JD_REQ_CORE_GRP_MASK added to the UAPI as well.

I suspect this is something OpenCL/Vulkan specific. Hopefully Stephen
can shine some light here :)
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