drm/i915: Only do gtt cleanup in vma_unbind for the global vma
Otherwise we end up tearing down fences when e.g. the client quits
way too early. Might or might not fix a fence pin_count BUG Ville has
reported.
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index ec774d9..034ba2c 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -2761,12 +2761,14 @@
* cause memory corruption through use-after-free.
*/
- i915_gem_object_finish_gtt(obj);
+ if (i915_is_ggtt(vma->vm)) {
+ i915_gem_object_finish_gtt(obj);
- /* release the fence reg _after_ flushing */
- ret = i915_gem_object_put_fence(obj);
- if (ret)
- return ret;
+ /* release the fence reg _after_ flushing */
+ ret = i915_gem_object_put_fence(obj);
+ if (ret)
+ return ret;
+ }
trace_i915_vma_unbind(vma);