1# SPDX-License-Identifier: GPL-2.0-only 2# 3# IBM Coherent Accelerator (CXL) compatible devices 4# 5 6config CXL_BASE 7 bool 8 default n 9 select PPC_COPRO_BASE 10 11config CXL_AFU_DRIVER_OPS 12 bool 13 default n 14 15config CXL_LIB 16 bool 17 default n 18 19config CXL 20 tristate "Support for IBM Coherent Accelerators (CXL)" 21 depends on PPC_POWERNV && PCI_MSI && EEH 22 select CXL_BASE 23 select CXL_AFU_DRIVER_OPS 24 select CXL_LIB 25 default m 26 help 27 Select this option to enable driver support for IBM Coherent 28 Accelerators (CXL). CXL is otherwise known as Coherent Accelerator 29 Processor Interface (CAPI). CAPI allows accelerators in FPGAs to be 30 coherently attached to a CPU via an MMU. This driver enables 31 userspace programs to access these accelerators via /dev/cxl/afuM.N 32 devices. 33 34 CAPI adapters are found in POWER8 based systems. 35 36 If unsure, say N. 37