diff --git a/drivers/gpu/drm/i915/i915_memcpy.c b/drivers/gpu/drm/i915/i915_memcpy.c
index 1b021a4902de..ba82277254b7 100644
--- a/drivers/gpu/drm/i915/i915_memcpy.c
+++ b/drivers/gpu/drm/i915/i915_memcpy.c
@@ -23,6 +23,8 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/cpufeature.h>
 #include <asm/fpu/api.h>
 
 #include "i915_memcpy.h"