drm/vmwgfx: Fix framebuffer creation on older hardware

On older hardware, texture max width and height is not available, so set
it to something reasonable, like 8192.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>

drivers/gpu/drm/vmwgfx/vmwgfx_drv.c

@@ -707,8 +707,11 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
 			  SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT);
 		dev_priv->texture_max_height = vmw_read(dev_priv,
 							SVGA_REG_DEV_CAP);
-	} else
+	} else {
+		dev_priv->texture_max_width = 8192;
+		dev_priv->texture_max_height = 8192;
 		dev_priv->prim_bb_mem = dev_priv->vram_size;
+	}
 
 	vmw_print_capabilities(dev_priv->capabilities);