+static struct drm_i915_gem_object*
+i915_gem_execbuffer_parse(struct intel_engine_cs *ring,
+ struct drm_i915_gem_exec_object2 *shadow_exec_entry,
+ struct eb_vmas *eb,
+ struct drm_i915_gem_object *batch_obj,
+ u32 batch_start_offset,
+ u32 batch_len,
+ bool is_master,
+ u32 *flags)
+{
+ struct drm_i915_private *dev_priv = to_i915(batch_obj->base.dev);
+ struct drm_i915_gem_object *shadow_batch_obj;
+ bool need_reloc = false;
+ int ret;
+
+ shadow_batch_obj = i915_gem_batch_pool_get(&dev_priv->mm.batch_pool,
+ batch_obj->base.size);
+ if (IS_ERR(shadow_batch_obj))
+ return shadow_batch_obj;
+
+ ret = i915_parse_cmds(ring,
+ batch_obj,
+ shadow_batch_obj,
+ batch_start_offset,
+ batch_len,
+ is_master);
+ if (ret) {
+ if (ret == -EACCES)
+ return batch_obj;
+ } else {
+ struct i915_vma *vma;
+
+ memset(shadow_exec_entry, 0, sizeof(*shadow_exec_entry));
+
+ vma = i915_gem_obj_to_ggtt(shadow_batch_obj);
+ vma->exec_entry = shadow_exec_entry;
+ vma->exec_entry->flags = __EXEC_OBJECT_PURGEABLE;
+ drm_gem_object_reference(&shadow_batch_obj->base);
+ i915_gem_execbuffer_reserve_vma(vma, ring, &need_reloc);
+ list_add_tail(&vma->exec_list, &eb->vmas);
+
+ shadow_batch_obj->base.pending_read_domains =
+ batch_obj->base.pending_read_domains;
+
+ /*
+ * Set the DISPATCH_SECURE bit to remove the NON_SECURE
+ * bit from MI_BATCH_BUFFER_START commands issued in the
+ * dispatch_execbuffer implementations. We specifically
+ * don't want that set when the command parser is
+ * enabled.
+ *
+ * FIXME: with aliasing ppgtt, buffers that should only
+ * be in ggtt still end up in the aliasing ppgtt. remove
+ * this check when that is fixed.
+ */
+ if (USES_FULL_PPGTT(dev))
+ *flags |= I915_DISPATCH_SECURE;
+ }
+
+ return ret ? ERR_PTR(ret) : shadow_batch_obj;
+}