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 11 tristate "Support for IBM Coherent Accelerators (CXL)" 12 depends on PPC_POWERNV && PCI_MSI && EEH 13 select CXL_BASE 14 default m 15 help 16 Select this option to enable driver support for IBM Coherent 17 Accelerators (CXL). CXL is otherwise known as Coherent Accelerator 18 Processor Interface (CAPI). CAPI allows accelerators in FPGAs to be 19 coherently attached to a CPU via an MMU. This driver enables 20 userspace programs to access these accelerators via /dev/cxl/afuM.N 21 devices. 22 23 CAPI adapters are found in POWER8 based systems. 24 25 If unsure, say N. 26