1# 2# IBM Coherent Accelerator (CXL) compatible devices 3# 4 5config CXL_BASE 6 bool 7 default n 8 select PPC_COPRO_BASE 9 10config CXL_KERNEL_API 11 bool 12 default n 13 14config CXL 15 tristate "Support for IBM Coherent Accelerators (CXL)" 16 depends on PPC_POWERNV && PCI_MSI 17 select CXL_BASE 18 select CXL_KERNEL_API 19 default m 20 help 21 Select this option to enable driver support for IBM Coherent 22 Accelerators (CXL). CXL is otherwise known as Coherent Accelerator 23 Processor Interface (CAPI). CAPI allows accelerators in FPGAs to be 24 coherently attached to a CPU via an MMU. This driver enables 25 userspace programs to access these accelerators via /dev/cxl/afuM.N 26 devices. 27 28 CAPI adapters are found in POWER8 based systems. 29 30 If unsure, say N. 31