# SPDX-License-Identifier: GPL-2.0-only config TEGRA_HOST1X tristate "NVIDIA Tegra host1x driver" depends on ARCH_TEGRA || (ARM && COMPILE_TEST) select IOMMU_IOVA help Driver for the NVIDIA Tegra host1x hardware. The Tegra host1x module is the DMA engine for register access to Tegra's graphics- and multimedia-related modules. The modules served by host1x are referred to as clients. host1x includes some other functionality, such as synchronization. if TEGRA_HOST1X config TEGRA_HOST1X_FIREWALL bool "Enable HOST1X security firewall" default y help Say yes if kernel should protect command streams from tampering. If unsure, choose Y. endif