[Intel-gfx] [PATCH 1/3] drm/i915: add GT number to intel_device_info

[Chris Wilson]

Quoting Lionel Landwerlin (2017-08-29 17:52:49)
> Up to Coffeelake we could deduce this GT number from the device ID.
> This doesn't seem to be the case anymore. This change reorders pciids
> per GT and adds a gt field to intel_device_info. We set this field on
> the following platforms :

Do we also then want to identify the sub-gts? Without a use that smells
of over-engineering -- I wonder if we've snuck one in anyway, just not
called it a gt test.

>    - HSW/BDW/SKL/KBL/CFL/CNL

Also should apply retrospectively to ivb, and then snb for completeness.
(We do have a IS_IVB_GT1 that can then be purged.)
-Chris