diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c
index 5bfdf222d5f9..c53cc9868cd8 100644
--- a/drivers/char/agp/intel-gtt.c
+++ b/drivers/char/agp/intel-gtt.c
@@ -20,6 +20,7 @@
 #include <linux/kernel.h>
 #include <linux/pagemap.h>
 #include <linux/agp_backend.h>
+#include <linux/intel-iommu.h>
 #include <linux/delay.h>
 #include <asm/smp.h>
 #include "agp.h"
diff --git a/drivers/gpu/drm/i915/gt/intel_ggtt.c b/drivers/gpu/drm/i915/gt/intel_ggtt.c
index 0c956e5e7fc7..555111c3bee5 100644
--- a/drivers/gpu/drm/i915/gt/intel_ggtt.c
+++ b/drivers/gpu/drm/i915/gt/intel_ggtt.c
@@ -3,6 +3,7 @@
  * Copyright © 2020 Intel Corporation
  */
 
+#include <linux/agp_backend.h>
 #include <linux/stop_machine.h>
 
 #include <asm/set_memory.h>
diff --git a/include/drm/intel-gtt.h b/include/drm/intel-gtt.h
index 4e5f8e7e25d0..67530bfef129 100644
--- a/include/drm/intel-gtt.h
+++ b/include/drm/intel-gtt.h
@@ -4,10 +4,9 @@
 #ifndef _DRM_INTEL_GTT_H
 #define	_DRM_INTEL_GTT_H
 
-#include <linux/agp_backend.h>
-#include <linux/intel-iommu.h>
 #include <linux/types.h>
 
+struct agp_bridge_data;
 struct pci_dev;
 struct sg_table;