# SPDX-License-Identifier: GPL-2.0-only # RISC-V IOMMU support config RISCV_IOMMU bool "RISC-V IOMMU Support" depends on RISCV && 64BIT default y select IOMMU_API help Support for implementations of the RISC-V IOMMU architecture that complements the RISC-V MMU capabilities, providing similar address translation and protection functions for accesses from I/O devices. Say Y here if your SoC includes an IOMMU device implementing the RISC-V IOMMU architecture. config RISCV_IOMMU_PCI def_bool y if RISCV_IOMMU && PCI_MSI help Support for the PCIe implementation of RISC-V IOMMU architecture.