2 files changed, 35 insertions, 43 deletions

diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 1eea5be..1439660 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -104,32 +104,6 @@ static void i915_write_hws_pga(struct drm_device *dev)
 }
 
 /**
- * Sets up the hardware status page for devices that need a physical address
- * in the register.
- */
-static int i915_init_phys_hws(struct drm_device *dev)
-{
-	drm_i915_private_t *dev_priv = dev->dev_private;
-
-	/* Program Hardware Status Page */
-	dev_priv->status_page_dmah =
-		drm_pci_alloc(dev, PAGE_SIZE, PAGE_SIZE);
-
-	if (!dev_priv->status_page_dmah) {
-		DRM_ERROR("Can not allocate hardware status page\n");
-		return -ENOMEM;
-	}
-
-	memset_io((void __force __iomem *)dev_priv->status_page_dmah->vaddr,
-		  0, PAGE_SIZE);
-
-	i915_write_hws_pga(dev);
-
-	DRM_DEBUG_DRIVER("Enabled hardware status page\n");
-	return 0;
-}
-
-/**
  * Frees the hardware status page, whether it's a physical address or a virtual
  * address set up by the X Server.
  */
@@ -1588,13 +1562,6 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
 
 	i915_gem_load(dev);
 
-	/* Init HWS */
-	if (!I915_NEED_GFX_HWS(dev)) {
-		ret = i915_init_phys_hws(dev);
-		if (ret)
-			goto out_gem_unload;
-	}
-
 	/* On the 945G/GM, the chipset reports the MSI capability on the
 	 * integrated graphics even though the support isn't actually there
 	 * according to the published specs.  It doesn't appear to function
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index a035ac2..1aa7689 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -1079,6 +1079,29 @@ err:
 	return ret;
 }
 
+static int init_phys_hws_pga(struct intel_ring_buffer *ring)
+{
+	struct drm_i915_private *dev_priv = ring->dev->dev_private;
+	u32 addr;
+
+	if (!dev_priv->status_page_dmah) {
+		dev_priv->status_page_dmah =
+			drm_pci_alloc(ring->dev, PAGE_SIZE, PAGE_SIZE);
+		if (!dev_priv->status_page_dmah)
+			return -ENOMEM;
+	}
+
+	addr = dev_priv->status_page_dmah->busaddr;
+	if (INTEL_INFO(ring->dev)->gen >= 4)
+		addr |= (dev_priv->status_page_dmah->busaddr >> 28) & 0xf0;
+	I915_WRITE(HWS_PGA, addr);
+
+	ring->status_page.page_addr = dev_priv->status_page_dmah->vaddr;
+	memset(ring->status_page.page_addr, 0, PAGE_SIZE);
+
+	return 0;
+}
+
 static int intel_init_ring_buffer(struct drm_device *dev,
 				  struct intel_ring_buffer *ring)
 {
@@ -1097,6 +1120,11 @@ static int intel_init_ring_buffer(struct drm_device *dev,
 		ret = init_status_page(ring);
 		if (ret)
 			return ret;
+	} else {
+		BUG_ON(ring->id != RCS);
+		ret = init_phys_hws_pga(ring);
+		if (ret)
+			return ret;
 	}
 
 	obj = i915_gem_alloc_object(dev, ring->size);
@@ -1545,12 +1573,6 @@ int intel_init_render_ring_buffer(struct drm_device *dev)
 	ring->init = init_render_ring;
 	ring->cleanup = render_ring_cleanup;
 
-
-	if (!I915_NEED_GFX_HWS(dev)) {
-		ring->status_page.page_addr = dev_priv->status_page_dmah->vaddr;
-		memset(ring->status_page.page_addr, 0, PAGE_SIZE);
-	}
-
 	return intel_init_ring_buffer(dev, ring);
 }
 
@@ -1558,6 +1580,7 @@ int intel_render_ring_init_dri(struct drm_device *dev, u64 start, u32 size)
 {
 	drm_i915_private_t *dev_priv = dev->dev_private;
 	struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
+	int ret;
 
 	ring->name = "render ring";
 	ring->id = RCS;
@@ -1595,9 +1618,6 @@ int intel_render_ring_init_dri(struct drm_device *dev, u64 start, u32 size)
 	ring->init = init_render_ring;
 	ring->cleanup = render_ring_cleanup;
 
-	if (!I915_NEED_GFX_HWS(dev))
-		ring->status_page.page_addr = dev_priv->status_page_dmah->vaddr;
-
 	ring->dev = dev;
 	INIT_LIST_HEAD(&ring->active_list);
 	INIT_LIST_HEAD(&ring->request_list);
@@ -1614,6 +1634,12 @@ int intel_render_ring_init_dri(struct drm_device *dev, u64 start, u32 size)
 		return -ENOMEM;
 	}
 
+	if (!I915_NEED_GFX_HWS(dev)) {
+		ret = init_phys_hws_pga(ring);
+		if (ret)
+			return ret;
+	}
+
 	return 0;
 }
 
@@ -1662,7 +1688,6 @@ int intel_init_bsd_ring_buffer(struct drm_device *dev)
 	}
 	ring->init = init_ring_common;
 
-
 	return intel_init_ring_buffer(dev, ring);
 }