2019-05-19 12:07:45 +00:00
|
|
|
# SPDX-License-Identifier: GPL-2.0-only
|
2014-10-08 08:55:01 +00:00
|
|
|
#
|
|
|
|
|
# IBM Coherent Accelerator (CXL) compatible devices
|
|
|
|
|
#
|
|
|
|
|
|
|
|
|
|
config CXL_BASE
|
|
|
|
|
bool
|
|
|
|
|
select PPC_COPRO_BASE
|
2021-12-01 14:41:51 +00:00
|
|
|
select PPC_64S_HASH_MMU
|
2014-10-08 08:55:04 +00:00
|
|
|
|
|
|
|
|
config CXL
|
|
|
|
|
tristate "Support for IBM Coherent Accelerators (CXL)"
|
2015-08-14 07:41:27 +00:00
|
|
|
depends on PPC_POWERNV && PCI_MSI && EEH
|
2014-10-08 08:55:04 +00:00
|
|
|
select CXL_BASE
|
|
|
|
|
default m
|
|
|
|
|
help
|
|
|
|
|
Select this option to enable driver support for IBM Coherent
|
|
|
|
|
Accelerators (CXL). CXL is otherwise known as Coherent Accelerator
|
|
|
|
|
Processor Interface (CAPI). CAPI allows accelerators in FPGAs to be
|
|
|
|
|
coherently attached to a CPU via an MMU. This driver enables
|
|
|
|
|
userspace programs to access these accelerators via /dev/cxl/afuM.N
|
|
|
|
|
devices.
|
|
|
|
|
|
|
|
|
|
CAPI adapters are found in POWER8 based systems.
|
|
|
|
|
|
|
|
|
|
If unsure, say N.
|
