projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 10542ca0 IM |
1 | # |
| 2 | # IBM Coherent Accelerator (CXL) compatible devices | |
| 3 | # | |
| 4 | ||
| 5 | config CXL_BASE | |
| 6 | bool | |
| 7 | default n | |
| 8 | select PPC_COPRO_BASE | |
| 881632c9 | 9 | |
| b810253b PB |
10 | config CXL_AFU_DRIVER_OPS |
| 11 | bool | |
| 12 | default n | |
| 13 | ||
| 881632c9 IM |
14 | config CXL |
| 15 | tristate "Support for IBM Coherent Accelerators (CXL)" | |
| 25901632 | 16 | depends on PPC_POWERNV && PCI_MSI && EEH |
| 881632c9 | 17 | select CXL_BASE |
| b810253b | 18 | select CXL_AFU_DRIVER_OPS |
| 881632c9 IM |
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. | |
| b0b5e591 AD |
31 | |
| 32 | config CXL_BIMODAL | |
| 33 | bool "Support for bi-modal CAPI cards" | |
| 34 | depends on HOTPLUG_PCI_POWERNV = y && CXL || HOTPLUG_PCI_POWERNV = m && CXL = m | |
| 35 | default y | |
| 36 | help | |
| 37 | Select this option to enable support for bi-modal CAPI cards, such as | |
| 38 | the Mellanox CX-4. |