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- # 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 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.
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