drm/i915: Store some backpointers in struct intel_gt

We need an easy way to get back to i915 and uncore.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190621070811.7006-4-tvrtko.ursulin@linux.intel.com
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 961f76d..df11a0d 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -923,7 +923,7 @@ static int i915_driver_init_early(struct drm_i915_private *dev_priv)
 	if (ret < 0)
 		goto err_engines;
 
-	intel_gt_init_early(&dev_priv->gt);
+	intel_gt_init_early(&dev_priv->gt, dev_priv);
 
 	ret = i915_gem_init_early(dev_priv);
 	if (ret < 0)