drm/i915: Pass intel_gt to intel_engines_init_mmio

Engines belong to the GT so make it indicative in the API.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20191022094726.3001-2-tvrtko.ursulin@linux.intel.com

drivers/gpu/drm/i915/gt/intel_engine.h

@@ -20,6 +20,8 @@
 
 struct drm_printer;
 
+struct intel_gt;
+
 /* Early gen2 devices have a cacheline of just 32 bytes, using 64 is overkill,
  * but keeps the logic simple. Indeed, the whole purpose of this macro is just
  * to give some inclination as to some of the magic values used in the various
@@ -322,7 +324,7 @@ __intel_ring_space(unsigned int head, unsigned int tail, unsigned int size)
 	return (head - tail - CACHELINE_BYTES) & (size - 1);
 }
 
-int intel_engines_init_mmio(struct drm_i915_private *i915);
+int intel_engines_init_mmio(struct intel_gt *gt);
 int intel_engines_setup(struct drm_i915_private *i915);
 int intel_engines_init(struct drm_i915_private *i915);
 void intel_engines_cleanup(struct drm_i915_private *i915);

drivers/gpu/drm/i915/gt/intel_engine_cs.c

@@ -396,12 +396,13 @@ void intel_engines_cleanup(struct drm_i915_private *i915)
 
 /**
  * intel_engines_init_mmio() - allocate and prepare the Engine Command Streamers
- * @i915: the i915 device
+ * @gt: pointer to struct intel_gt
  *
  * Return: non-zero if the initialization failed.
  */
-int intel_engines_init_mmio(struct drm_i915_private *i915)
+int intel_engines_init_mmio(struct intel_gt *gt)
 {
+	struct drm_i915_private *i915 = gt->i915;
 	struct intel_device_info *device_info = mkwrite_device_info(i915);
 	const unsigned int engine_mask = INTEL_INFO(i915)->engine_mask;
 	unsigned int mask = 0;
@@ -419,7 +420,7 @@ int intel_engines_init_mmio(struct drm_i915_private *i915)
 		if (!HAS_ENGINE(i915, i))
 			continue;
 
-		err = intel_engine_setup(&i915->gt, i);
+		err = intel_engine_setup(gt, i);
 		if (err)
 			goto cleanup;
 
@@ -436,7 +437,7 @@ int intel_engines_init_mmio(struct drm_i915_private *i915)
 
 	RUNTIME_INFO(i915)->num_engines = hweight32(mask);
 
-	intel_gt_check_and_clear_faults(&i915->gt);
+	intel_gt_check_and_clear_faults(gt);
 
 	intel_setup_engine_capabilities(i915);
 

drivers/gpu/drm/i915/i915_drv.c

@@ -598,7 +598,7 @@ static int i915_driver_mmio_probe(struct drm_i915_private *dev_priv)
 
 	intel_uc_init_mmio(&dev_priv->gt.uc);
 
-	ret = intel_engines_init_mmio(dev_priv);
+	ret = intel_engines_init_mmio(&dev_priv->gt);
 	if (ret)
 		goto err_uncore;