diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 757f5cd37744cc40163338a121c7ae2b4abc6467..224506a2f7b1ae6d53d5b68347a4a7889a262a2c 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -519,6 +519,7 @@ typedef int (*radeon_packet3_check_t)(struct radeon_cs_parser *p,
  * AGP
  */
 int radeon_agp_init(struct radeon_device *rdev);
+void radeon_agp_resume(struct radeon_device *rdev);
 void radeon_agp_fini(struct radeon_device *rdev);
 
 
diff --git a/drivers/gpu/drm/radeon/radeon_agp.c b/drivers/gpu/drm/radeon/radeon_agp.c
index 23ea9955ac596f28423fb28781e76a975e7c3995..54bf49a6d676b6a53c1e301ec5db855d2cf7f4fb 100644
--- a/drivers/gpu/drm/radeon/radeon_agp.c
+++ b/drivers/gpu/drm/radeon/radeon_agp.c
@@ -237,6 +237,18 @@ int radeon_agp_init(struct radeon_device *rdev)
 #endif
 }
 
+void radeon_agp_resume(struct radeon_device *rdev)
+{
+#if __OS_HAS_AGP
+	int r;
+	if (rdev->flags & RADEON_IS_AGP) {
+		r = radeon_agp_init(rdev);
+		if (r)
+			dev_warn(rdev->dev, "radeon AGP reinit failed\n");
+	}
+#endif
+}
+
 void radeon_agp_fini(struct radeon_device *rdev)
 {
 #if __OS_HAS_AGP
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index e3f9edfa40fe8a5d63b64eee70e91345c4a1bd7b..41bb76fbe734f282dadbfee6d70ba1e046e6ecee 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -688,6 +688,8 @@ int radeon_resume_kms(struct drm_device *dev)
 		return -1;
 	}
 	pci_set_master(dev->pdev);
+	/* resume AGP if in use */
+	radeon_agp_resume(rdev);
 	radeon_resume(rdev);
 	radeon_restore_bios_scratch_regs(rdev);
 	fb_set_suspend(rdev->fbdev_info, 0);