1 files changed, 8 insertions, 4 deletions

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 3dfc848ff75..cf4f74c7c6f 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -140,12 +140,16 @@ void i915_gem_do_init(struct drm_device *dev,
 {
         drm_i915_private_t *dev_priv = dev->dev_private;
 
-        drm_mm_init(&dev_priv->mm.gtt_space, start,
-                    end - start);
+        drm_mm_init(&dev_priv->mm.gtt_space, start, end - start);
 
+        dev_priv->mm.gtt_start = start;
+        dev_priv->mm.gtt_mappable_end = mappable_end;
+        dev_priv->mm.gtt_end = end;
         dev_priv->mm.gtt_total = end - start;
         dev_priv->mm.mappable_gtt_total = min(end, mappable_end) - start;
-        dev_priv->mm.gtt_mappable_end = mappable_end;
+
+        /* Take over this portion of the GTT */
+        intel_gtt_clear_range(start / PAGE_SIZE, (end-start) / PAGE_SIZE);
 }
 
 int
@@ -1857,7 +1861,7 @@ i915_gem_retire_requests_ring(struct drm_device *dev,
 
         seqno = ring->get_seqno(ring);
 
-        for (i = 0; i < I915_NUM_RINGS; i++)
+        for (i = 0; i < ARRAY_SIZE(ring->sync_seqno); i++)
                 if (seqno >= ring->sync_seqno[i])
                         ring->sync_seqno[i] = 0;