1*4882a593Smuzhiyun# SPDX-License-Identifier: GPL-2.0-only 2*4882a593Smuzhiyunconfig TEGRA_HOST1X 3*4882a593Smuzhiyun tristate "NVIDIA Tegra host1x driver" 4*4882a593Smuzhiyun depends on ARCH_TEGRA || (ARM && COMPILE_TEST) 5*4882a593Smuzhiyun select IOMMU_IOVA 6*4882a593Smuzhiyun help 7*4882a593Smuzhiyun Driver for the NVIDIA Tegra host1x hardware. 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun The Tegra host1x module is the DMA engine for register access to 10*4882a593Smuzhiyun Tegra's graphics- and multimedia-related modules. The modules served 11*4882a593Smuzhiyun by host1x are referred to as clients. host1x includes some other 12*4882a593Smuzhiyun functionality, such as synchronization. 13*4882a593Smuzhiyun 14*4882a593Smuzhiyunif TEGRA_HOST1X 15*4882a593Smuzhiyun 16*4882a593Smuzhiyunconfig TEGRA_HOST1X_FIREWALL 17*4882a593Smuzhiyun bool "Enable HOST1X security firewall" 18*4882a593Smuzhiyun default y 19*4882a593Smuzhiyun help 20*4882a593Smuzhiyun Say yes if kernel should protect command streams from tampering. 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun If unsure, choose Y. 23*4882a593Smuzhiyun 24*4882a593Smuzhiyunendif 25