1# SPDX-License-Identifier: GPL-2.0-only 2config TEGRA_HOST1X 3 tristate "NVIDIA Tegra host1x driver" 4 depends on ARCH_TEGRA || (ARM && COMPILE_TEST) 5 select DMA_SHARED_BUFFER 6 select IOMMU_IOVA 7 help 8 Driver for the NVIDIA Tegra host1x hardware. 9 10 The Tegra host1x module is the DMA engine for register access to 11 Tegra's graphics- and multimedia-related modules. The modules served 12 by host1x are referred to as clients. host1x includes some other 13 functionality, such as synchronization. 14 15if TEGRA_HOST1X 16 17config TEGRA_HOST1X_FIREWALL 18 bool "Enable HOST1X security firewall" 19 default y 20 help 21 Say yes if kernel should protect command streams from tampering. 22 23 If unsure, choose Y. 24 25endif 26