12959ab24SNipun Gupta# SPDX-License-Identifier: GPL-2.0 22959ab24SNipun Gupta# 32959ab24SNipun Gupta# CDX bus configuration 42959ab24SNipun Gupta# 52959ab24SNipun Gupta# Copyright (C) 2022-2023, Advanced Micro Devices, Inc. 62959ab24SNipun Gupta# 72959ab24SNipun Gupta 82959ab24SNipun Guptaconfig CDX_BUS 92959ab24SNipun Gupta bool "CDX Bus driver" 107f81907bSKrzysztof Kozlowski depends on OF && ARM64 || COMPILE_TEST 11*e8b18c11SKrzysztof Kozlowski select GENERIC_MSI_IRQ 122959ab24SNipun Gupta help 132959ab24SNipun Gupta Driver to enable Composable DMA Transfer(CDX) Bus. CDX bus 142959ab24SNipun Gupta exposes Fabric devices which uses composable DMA IP to the 152959ab24SNipun Gupta APU. CDX bus provides a mechanism for scanning and probing 162959ab24SNipun Gupta of CDX devices. CDX devices are memory mapped on system bus 172959ab24SNipun Gupta for embedded CPUs. CDX bus uses CDX controller and firmware 182959ab24SNipun Gupta to scan these CDX devices. 19eb96b740SNipun Gupta 20eb96b740SNipun Guptasource "drivers/cdx/controller/Kconfig" 21