[Intel-gfx] [PATCH] drm/i915/tgl: Keep forcewake always for now

[Chris Wilson]

Quoting Mika Kuoppala (2019-09-10 12:35:47)
> Forcewake handling is a prime suspect now. Keep ref
> always on tgl to test the theory and reveal the coverage.
> 
> Testcase: igt/gem_sync
> Cc: Chris Wilson <chris at chris-wilson.co.uk>
> Suggested-by: Chris Wilson <chris at chris-wilson.co.uk>
> Signed-off-by: Mika Kuoppala <mika.kuoppala at linux.intel.com>

Gets us as far as reload, before we hit the WARN for the unbalanced
forcewake.

Seems like a worthwhile approach if we can refine it slightly.
-Chris