1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_agp.c b/drivers/gpu/drm/radeon/radeon_agp.c
index 220f454ea9fa..c9ad7f5cc1ac 100644
--- a/drivers/gpu/drm/radeon/radeon_agp.c
+++ b/drivers/gpu/drm/radeon/radeon_agp.c
@@ -133,6 +133,13 @@ int radeon_agp_init(struct radeon_device *rdev)
         bool is_v3;
         int ret;
 
+        if (rdev->ddev->agp->agp_info.aper_size < 32) {
+                dev_warn(rdev->dev, "AGP aperture to small (%dM) "
+                        "need at least 32M, disabling AGP\n",
+                        rdev->ddev->agp->agp_info.aper_size);
+                return -EINVAL;
+        }
+
         /* Acquire AGP. */
         if (!rdev->ddev->agp->acquired) {
                 ret = drm_agp_acquire(rdev->ddev);