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 select PPC_64S_HASH_MMU 10 11config CXL 12 tristate "Support for IBM Coherent Accelerators (CXL)" 13 depends on PPC_POWERNV && PCI_MSI && EEH 14 select CXL_BASE 15 default m 16 help 17 Select this option to enable driver support for IBM Coherent 18 Accelerators (CXL). CXL is otherwise known as Coherent Accelerator 19 Processor Interface (CAPI). CAPI allows accelerators in FPGAs to be 20 coherently attached to a CPU via an MMU. This driver enables 21 userspace programs to access these accelerators via /dev/cxl/afuM.N 22 devices. 23 24 CAPI adapters are found in POWER8 based systems. 25 26 If unsure, say N. 27