[Intel-gfx] [RFC] drm/i915/guc: Rename i915_guc_reg.h to intel_guc_reg.h

[Chris Wilson]

Quoting Michal Wajdeczko (2017-11-23 18:09:15)
> We are using intel_ prefix for all filenames with hardware related
> definitions. GuC registers also fall into this category.

Seconded.
-Chris