44 lines
1.0 KiB
Plaintext
44 lines
1.0 KiB
Plaintext
|
#
|
||
|
|
# 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.
|