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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_LIB
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
select CXL_LIB
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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