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.