diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c
index 8cf600cdac06..326ca2ef06b5 100644
--- a/drivers/char/agp/intel-gtt.c
+++ b/drivers/char/agp/intel-gtt.c
@@ -721,8 +721,10 @@ static int intel_fake_agp_fetch_size(void)
 
 static void i830_cleanup(void)
 {
-	kunmap(intel_private.i8xx_page);
-	intel_private.i8xx_flush_page = NULL;
+	if (intel_private.i8xx_flush_page) {
+		kunmap(intel_private.i8xx_flush_page);
+		intel_private.i8xx_flush_page = NULL;
+	}
 
 	__free_page(intel_private.i8xx_page);
 	intel_private.i8xx_page = NULL;
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 664300986fb4..e9fb8953c606 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -775,6 +775,9 @@ static int i915_getparam(struct drm_device *dev, void *data,
 	case I915_PARAM_HAS_RELAXED_FENCING:
 		value = 1;
 		break;
+	case I915_PARAM_HAS_COHERENT_RINGS:
+		value = 1;
+		break;
 	default:
 		DRM_DEBUG_DRIVER("Unknown parameter %d\n",
 				 param->param);
diff --git a/include/drm/i915_drm.h b/include/drm/i915_drm.h
index b20dbb2d7174..a2776e2807a4 100644
--- a/include/drm/i915_drm.h
+++ b/include/drm/i915_drm.h
@@ -288,6 +288,7 @@ typedef struct drm_i915_irq_wait {
 #define I915_PARAM_HAS_BSD		 10
 #define I915_PARAM_HAS_BLT		 11
 #define I915_PARAM_HAS_RELAXED_FENCING	 12
+#define I915_PARAM_HAS_COHERENT_RINGS	 13
 
 typedef struct drm_i915_getparam {
 	int param;