diff mbox

[24/29] drm/i915: Allocate the PCI resource for the MCHBAR

Message ID 1282475148-15951-25-git-send-email-chris@chris-wilson.co.uk (mailing list archive)
State Deferred, archived
Headers show

Commit Message

Chris Wilson Aug. 22, 2010, 11:05 a.m. UTC
None
diff mbox

Patch

diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 77af26d..f3433ba 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -885,7 +885,7 @@  intel_alloc_mchbar_resource(struct drm_device *dev)
 	int reg = IS_I965G(dev) ? MCHBAR_I965 : MCHBAR_I915;
 	u32 temp_lo, temp_hi = 0;
 	u64 mchbar_addr;
-	int ret = 0;
+	int ret;
 
 	if (IS_I965G(dev))
 		pci_read_config_dword(dev_priv->bridge_dev, reg + 4, &temp_hi);
@@ -895,22 +895,23 @@  intel_alloc_mchbar_resource(struct drm_device *dev)
 	/* If ACPI doesn't have it, assume we need to allocate it ourselves */
 #ifdef CONFIG_PNP
 	if (mchbar_addr &&
-	    pnp_range_reserved(mchbar_addr, mchbar_addr + MCHBAR_SIZE)) {
-		ret = 0;
-		goto out;
-	}
+	    pnp_range_reserved(mchbar_addr, mchbar_addr + MCHBAR_SIZE))
+		return 0;
 #endif
 
 	/* Get some space for it */
-	ret = pci_bus_alloc_resource(dev_priv->bridge_dev->bus, &dev_priv->mch_res,
+	dev_priv->mch_res.name = "i915 MCHBAR";
+	dev_priv->mch_res.flags = IORESOURCE_MEM;
+	ret = pci_bus_alloc_resource(dev_priv->bridge_dev->bus,
+				     &dev_priv->mch_res,
 				     MCHBAR_SIZE, MCHBAR_SIZE,
 				     PCIBIOS_MIN_MEM,
-				     0,   pcibios_align_resource,
+				     0, pcibios_align_resource,
 				     dev_priv->bridge_dev);
 	if (ret) {
 		DRM_DEBUG_DRIVER("failed bus alloc: %d\n", ret);
 		dev_priv->mch_res.start = 0;
-		goto out;
+		return ret;
 	}
 
 	if (IS_I965G(dev))
@@ -919,8 +920,7 @@  intel_alloc_mchbar_resource(struct drm_device *dev)
 
 	pci_write_config_dword(dev_priv->bridge_dev, reg,
 			       lower_32_bits(dev_priv->mch_res.start));
-out:
-	return ret;
+	return 0;
 }
 
 /* Setup MCHBAR if possible, return true if we should disable it again */