2 files changed, 5 insertions, 1 deletions

diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 3c086d707a91..fdff0097cf2b 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -790,6 +790,9 @@ static int i915_getparam(struct drm_device *dev, void *data,
         case I915_PARAM_HAS_LLC:
                 value = HAS_LLC(dev);
                 break;
+        case I915_PARAM_HAS_ALIASING_PPGTT:
+                value = dev_priv->mm.aliasing_ppgtt ? 1 : 0;
+                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 da929bb5b788..f3f82242bf1d 100644
--- a/include/drm/i915_drm.h
+++ b/include/drm/i915_drm.h
@@ -296,7 +296,8 @@ typedef struct drm_i915_irq_wait {
 #define I915_PARAM_HAS_EXEC_CONSTANTS    14
 #define I915_PARAM_HAS_RELAXED_DELTA     15
 #define I915_PARAM_HAS_GEN7_SOL_RESET    16
-#define I915_PARAM_HAS_LLC       17
+#define I915_PARAM_HAS_LLC               17
+#define I915_PARAM_HAS_ALIASING_PPGTT    18
 
 typedef struct drm_i915_getparam {
         int param;