[Intel-gfx] [PATCH] drm/i915/selftests: Teach requests to use all available engines

[Chris Wilson]

Quoting Tvrtko Ursulin (2019-10-17 17:54:55)
> Will we end up with a for_each_uabi_engine_idx iterator? And storing the 
> num_uabi_engines in somewhere?

I see the repetition, yeah, not convinced from this set that we want to
proliferate the magic macros. I expect you will notice in future if the
pattern continues to hold, and I might not then have a good excuse to be
lazy. Hopefully someone else gets caught out first :)
-Chris