1 # SPDX-License-Identifier: GPL-2.0-only
3 # IBM Coherent Accelerator (CXL) compatible devices
9 select PPC_64S_HASH_MMU
12 tristate "Support for IBM Coherent Accelerators (CXL)"
13 depends on PPC_POWERNV && PCI_MSI && EEH
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
24 CAPI adapters are found in POWER8 based systems.