drm: Use resource_size_t for drm_get_resource_{start, len}

The DRM uses its own wrappers to obtain resources from PCI devices,
which currently convert the resource_size_t into an unsigned long.

This is broken on 32-bit platforms with >32-bit physical address
space.

This fixes them, along with a few occurences of unsigned long used
to store such a resource in drivers.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Dave Airlie <airlied@linux.ie>
diff --git a/drivers/gpu/drm/savage/savage_bci.c b/drivers/gpu/drm/savage/savage_bci.c
index d465b2f..456cd04 100644
--- a/drivers/gpu/drm/savage/savage_bci.c
+++ b/drivers/gpu/drm/savage/savage_bci.c
@@ -599,8 +599,8 @@
 			    drm_mtrr_add(dev_priv->mtrr[2].base,
 					 dev_priv->mtrr[2].size, DRM_MTRR_WC);
 		} else {
-			DRM_ERROR("strange pci_resource_len %08lx\n",
-				  drm_get_resource_len(dev, 0));
+			DRM_ERROR("strange pci_resource_len %08llx\n",
+				  (unsigned long long)drm_get_resource_len(dev, 0));
 		}
 	} else if (dev_priv->chipset != S3_SUPERSAVAGE &&
 		   dev_priv->chipset != S3_SAVAGE2000) {
@@ -620,8 +620,8 @@
 			    drm_mtrr_add(dev_priv->mtrr[0].base,
 					 dev_priv->mtrr[0].size, DRM_MTRR_WC);
 		} else {
-			DRM_ERROR("strange pci_resource_len %08lx\n",
-				  drm_get_resource_len(dev, 1));
+			DRM_ERROR("strange pci_resource_len %08llx\n",
+				  (unsigned long long)drm_get_resource_len(dev, 1));
 		}
 	} else {
 		mmio_base = drm_get_resource_start(dev, 0);