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.