hash_add
hash_add(adev->mn_hash, &amn->node, AMDGPU_MN_KEY(mm, type));
hash_add(sync->fences, &e->node, f->context);
hash_add(engine->cmd_hash, &desc_node->node,
hash_add(dev_priv->mm_structs,
hash_add(rdev->mn_hash, &rmn->node, (unsigned long)mm);