diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index f94418bd1ed2..35d326d70fab 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -259,7 +259,8 @@ static int i915_gem_object_info(struct seq_file *m, void* data)
 		   count, size);
 
 	seq_printf(m, "%zu [%zu] gtt total\n",
-		   dev_priv->mm.gtt_total, dev_priv->mm.mappable_gtt_total);
+		   dev_priv->mm.gtt_total,
+		   dev_priv->mm.gtt_mappable_end - dev_priv->mm.gtt_start);
 
 	mutex_unlock(&dev->struct_mutex);
 
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index d58189e60844..6e2c10b65c8d 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -886,7 +886,6 @@ typedef struct drm_i915_private {
 
 		/* accounting, useful for userland debugging */
 		size_t gtt_total;
-		size_t mappable_gtt_total;
 		size_t object_memory;
 		u32 object_count;
 	} mm;
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index e66c70008767..8c42ddd467b6 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -559,7 +559,6 @@ void i915_gem_setup_global_gtt(struct drm_device *dev,
 	dev_priv->mm.gtt_start = start;
 	dev_priv->mm.gtt_mappable_end = mappable_end;
 	dev_priv->mm.gtt_total = end - start;
-	dev_priv->mm.mappable_gtt_total = mappable_end - start;
 
 	/* Clear any non-preallocated blocks */
 	drm_mm_for_each_hole(entry, &dev_priv->mm.gtt_space,