X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=drivers%2Fgpu%2Fdrm%2Fi915%2Fi915_gem_stolen.c;h=28d24caa49f3f7720c63e208c4831c79f5433d8d;hb=632b06aa2842b12c6d6a510ec080fb6ebdb38ea5;hp=d58b4e287e3289a278741522a09baeaca584be0b;hpb=721f0c126075294e66df73051cc2e1d795ef2095;p=~andy%2Flinux

diff --git a/drivers/gpu/drm/i915/i915_gem_stolen.c b/drivers/gpu/drm/i915/i915_gem_stolen.c
index d58b4e287e3..28d24caa49f 100644
--- a/drivers/gpu/drm/i915/i915_gem_stolen.c
+++ b/drivers/gpu/drm/i915/i915_gem_stolen.c
@@ -214,6 +214,13 @@ int i915_gem_init_stolen(struct drm_device *dev)
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	int bios_reserved = 0;
 
+#ifdef CONFIG_INTEL_IOMMU
+	if (intel_iommu_gfx_mapped) {
+		DRM_INFO("DMAR active, disabling use of stolen memory\n");
+		return 0;
+	}
+#endif
+
 	if (dev_priv->gtt.stolen_size == 0)
 		return 0;