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