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- #
- # IBM Coherent Accelerator (CXL) compatible devices
- #
- config CXL_BASE
- bool
- default n
- select PPC_COPRO_BASE
- config CXL_AFU_DRIVER_OPS
- bool
- default n
- config CXL
- tristate "Support for IBM Coherent Accelerators (CXL)"
- depends on PPC_POWERNV && PCI_MSI && EEH
- select CXL_BASE
- select CXL_AFU_DRIVER_OPS
- 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.
- config CXL_BIMODAL
- bool "Support for bi-modal CAPI cards"
- depends on HOTPLUG_PCI_POWERNV = y && CXL || HOTPLUG_PCI_POWERNV = m && CXL = m
- default y
- help
- Select this option to enable support for bi-modal CAPI cards, such as
- the Mellanox CX-4.
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