diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 5a87655508fc..b06f5afe10ce 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -55,16 +55,13 @@
 #include <linux/mm.h>
 #include <linux/cdev.h>
 #include <linux/mutex.h>
+#include <linux/io.h>
 #include <linux/slab.h>
 #if defined(__alpha__) || defined(__powerpc__)
 #include <asm/pgtable.h>	/* For pte_wrprotect */
 #endif
-#include <asm/io.h>
 #include <asm/mman.h>
 #include <asm/uaccess.h>
-#ifdef CONFIG_MTRR
-#include <asm/mtrr.h>
-#endif
 #if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
 #include <linux/types.h>
 #include <linux/agp_backend.h>
diff --git a/include/drm/drm_os_linux.h b/include/drm/drm_os_linux.h
index 675ddf4b441f..815fafc6b4ad 100644
--- a/include/drm/drm_os_linux.h
+++ b/include/drm/drm_os_linux.h
@@ -65,22 +65,6 @@ struct no_agp_kern {
 #define DRM_AGP_KERN            struct no_agp_kern
 #endif
 
-#if !(__OS_HAS_MTRR)
-static __inline__ int mtrr_add(unsigned long base, unsigned long size,
-			       unsigned int type, char increment)
-{
-	return -ENODEV;
-}
-
-static __inline__ int mtrr_del(int reg, unsigned long base, unsigned long size)
-{
-	return -ENODEV;
-}
-
-#define MTRR_TYPE_WRCOMB     1
-
-#endif
-
 /** Other copying of data to kernel space */
 #define DRM_COPY_FROM_USER(arg1, arg2, arg3)		\
 	copy_from_user(arg1, arg2, arg3)