1# SPDX-License-Identifier: GPL-2.0 2# 3# CDX bus configuration 4# 5# Copyright (C) 2022-2023, Advanced Micro Devices, Inc. 6# 7 8config CDX_BUS 9 bool "CDX Bus driver" 10 depends on OF && ARM64 || COMPILE_TEST 11 select GENERIC_MSI_IRQ 12 help 13 Driver to enable Composable DMA Transfer(CDX) Bus. CDX bus 14 exposes Fabric devices which uses composable DMA IP to the 15 APU. CDX bus provides a mechanism for scanning and probing 16 of CDX devices. CDX devices are memory mapped on system bus 17 for embedded CPUs. CDX bus uses CDX controller and firmware 18 to scan these CDX devices. 19 20source "drivers/cdx/controller/Kconfig" 21