| # SPDX-License-Identifier: GPL-2.0-only |
| # |
| # Open Coherent Accelerator (OCXL) compatible devices |
| # |
| |
| config OCXL_BASE |
| bool |
| select PPC_COPRO_BASE |
| |
| config OCXL |
| tristate "OpenCAPI coherent accelerator support" |
| depends on PPC_POWERNV && PCI && EEH && HOTPLUG_PCI_POWERNV |
| select OCXL_BASE |
| default m |
| help |
| Select this option to enable the ocxl driver for Open |
| Coherent Accelerator Processor Interface (OpenCAPI) devices. |
| |
| OpenCAPI allows FPGA and ASIC accelerators to be coherently |
| attached to a CPU over an OpenCAPI link. |
| |
| The ocxl driver enables userspace programs to access these |
| accelerators through devices in /dev/ocxl/. |
| |
| For more information, see https://opencapi.org. |
| |
| This is not to be confused with the support for IBM CAPI |
| accelerators (CONFIG_CXL), which are PCI-based instead of a |
| dedicated OpenCAPI link, and don't follow the same protocol. |
| |
| If unsure, say N. |
