1 # SPDX-License-Identifier: GPL-2.0-only
3 # Open Coherent Accelerator (OCXL) compatible devices
11 tristate "OpenCAPI coherent accelerator support"
12 depends on HOTPLUG_PCI_POWERNV
16 Select this option to enable the ocxl driver for Open
17 Coherent Accelerator Processor Interface (OpenCAPI) devices.
19 OpenCAPI allows FPGA and ASIC accelerators to be coherently
20 attached to a CPU over an OpenCAPI link.
22 The ocxl driver enables userspace programs to access these
23 accelerators through devices in /dev/ocxl/.
25 For more information, see https://opencapi.org.
27 This is not to be confused with the support for IBM CAPI
28 accelerators (CONFIG_CXL), which are PCI-based instead of a
29 dedicated OpenCAPI link, and don't follow the same protocol.