[Intel-gfx] [RFC 28/31] drm/i915: Save trip via top-level i915 in a few more places

[Chris Wilson]

Quoting Tvrtko Ursulin (2019-06-14 16:17:28)
> From: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
> 
> For gt related operations it makes more logical sense to stay in the realm
> of gt instead of dereferencing via driver i915.

And quite a few of those come under the scope of tracking vm in
intel_context and should simply disappear.

> This patch handles a few of the easy ones with work requiring more
> refactoring still outstanding.
> 
> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>
-Chris