nvif_object_ioctl
int nvif_object_ioctl(struct nvif_object *, void *, u32, void **);
ret = nvif_object_ioctl(&svmm->vmm->vmm.object, args, size, NULL);
ret = nvif_object_ioctl(&svmm->vmm->vmm.object, args, size, NULL);
nvif_object_ioctl(&svmm->vmm->vmm.object, args,
ret = nvif_object_ioctl(object, args, args_size, NULL);
nvif_object_ioctl(object, &args, sizeof(args), NULL);
ret = nvif_object_ioctl(object, args, argn, NULL);
nvif_object_ioctl(object, &args, sizeof(args), NULL);
ret = nvif_object_ioctl(parent, args, args_size, &object->priv);
ret = nvif_object_ioctl(object, args, size, NULL);