18c2ecf20Sopenharmony_ci# SPDX-License-Identifier: GPL-2.0-only 28c2ecf20Sopenharmony_ciconfig TEGRA_HOST1X 38c2ecf20Sopenharmony_ci tristate "NVIDIA Tegra host1x driver" 48c2ecf20Sopenharmony_ci depends on ARCH_TEGRA || (ARM && COMPILE_TEST) 58c2ecf20Sopenharmony_ci select IOMMU_IOVA 68c2ecf20Sopenharmony_ci help 78c2ecf20Sopenharmony_ci Driver for the NVIDIA Tegra host1x hardware. 88c2ecf20Sopenharmony_ci 98c2ecf20Sopenharmony_ci The Tegra host1x module is the DMA engine for register access to 108c2ecf20Sopenharmony_ci Tegra's graphics- and multimedia-related modules. The modules served 118c2ecf20Sopenharmony_ci by host1x are referred to as clients. host1x includes some other 128c2ecf20Sopenharmony_ci functionality, such as synchronization. 138c2ecf20Sopenharmony_ci 148c2ecf20Sopenharmony_ciif TEGRA_HOST1X 158c2ecf20Sopenharmony_ci 168c2ecf20Sopenharmony_ciconfig TEGRA_HOST1X_FIREWALL 178c2ecf20Sopenharmony_ci bool "Enable HOST1X security firewall" 188c2ecf20Sopenharmony_ci default y 198c2ecf20Sopenharmony_ci help 208c2ecf20Sopenharmony_ci Say yes if kernel should protect command streams from tampering. 218c2ecf20Sopenharmony_ci 228c2ecf20Sopenharmony_ci If unsure, choose Y. 238c2ecf20Sopenharmony_ci 248c2ecf20Sopenharmony_ciendif 25