drm/i915: PPGTT vfuncs should take a ppgtt argument

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/i915/i915_drv.h

@@ -671,7 +671,8 @@ struct i915_hw_ppgtt {
 		dma_addr_t *pt_dma_addr;
 		dma_addr_t *gen8_pt_dma_addr[4];
 	};
-	int (*enable)(struct drm_device *dev);
+
+	int (*enable)(struct i915_hw_ppgtt *ppgtt);
 };
 
 struct i915_ctx_hang_stats {

drivers/gpu/drm/i915/i915_gem.c

@@ -4404,6 +4404,7 @@ int
 i915_gem_init_hw(struct drm_device *dev)
 {
 	drm_i915_private_t *dev_priv = dev->dev_private;
+	struct i915_hw_ppgtt *ppgtt;
 	int ret, i;
 
 	if (INTEL_INFO(dev)->gen < 6 && !intel_enable_gtt())
@@ -4446,7 +4447,8 @@ i915_gem_init_hw(struct drm_device *dev)
 	}
 
 	if (dev_priv->mm.aliasing_ppgtt) {
-		ret = dev_priv->mm.aliasing_ppgtt->enable(dev);
+		ppgtt = dev_priv->mm.aliasing_ppgtt;
+		ret = ppgtt->enable(ppgtt);
 		if (ret) {
 			i915_gem_cleanup_aliasing_ppgtt(dev);
 			DRM_INFO("PPGTT enable failed. This is not fatal, but unexpected\n");

drivers/gpu/drm/i915/i915_gem_gtt.c

@@ -230,11 +230,11 @@ static int gen8_write_pdp(struct intel_ring_buffer *ring, unsigned entry,
 	return 0;
 }
 
-static int gen8_ppgtt_enable(struct drm_device *dev)
+static int gen8_ppgtt_enable(struct i915_hw_ppgtt *ppgtt)
 {
+	struct drm_device *dev = ppgtt->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_ring_buffer *ring;
-	struct i915_hw_ppgtt *ppgtt = dev_priv->mm.aliasing_ppgtt;
 	int i, j, ret;
 
 	/* bit of a hack to find the actual last used pd */
@@ -491,12 +491,12 @@ static void gen6_write_pdes(struct i915_hw_ppgtt *ppgtt)
 	readl(pd_addr);
 }
 
-static int gen6_ppgtt_enable(struct drm_device *dev)
+static int gen6_ppgtt_enable(struct i915_hw_ppgtt *ppgtt)
 {
+	struct drm_device *dev = ppgtt->base.dev;
 	drm_i915_private_t *dev_priv = dev->dev_private;
 	uint32_t pd_offset;
 	struct intel_ring_buffer *ring;
-	struct i915_hw_ppgtt *ppgtt = dev_priv->mm.aliasing_ppgtt;
 	int i;
 
 	BUG_ON(ppgtt->pd_offset & 0x3f);