Kconfig 716 B

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  1. # SPDX-License-Identifier: GPL-2.0-only
  2. #
  3. # IBM Coherent Accelerator (CXL) compatible devices
  4. #
  5. config CXL_BASE
  6. bool
  7. select PPC_COPRO_BASE
  8. config CXL
  9. tristate "Support for IBM Coherent Accelerators (CXL)"
  10. depends on PPC_POWERNV && PCI_MSI && EEH
  11. select CXL_BASE
  12. default m
  13. help
  14. Select this option to enable driver support for IBM Coherent
  15. Accelerators (CXL). CXL is otherwise known as Coherent Accelerator
  16. Processor Interface (CAPI). CAPI allows accelerators in FPGAs to be
  17. coherently attached to a CPU via an MMU. This driver enables
  18. userspace programs to access these accelerators via /dev/cxl/afuM.N
  19. devices.
  20. CAPI adapters are found in POWER8 based systems.
  21. If unsure, say N.