projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 2080e88a DW |
1 | config DAX_DRIVER |
| 2 | select DAX | |
| 3 | bool | |
| 4 | ||
| 7b6be844 | 5 | menuconfig DAX |
| ab68f262 | 6 | tristate "DAX: direct access to differentiated memory" |
| 7b6be844 | 7 | select SRCU |
| ab68f262 | 8 | default m if NVDIMM_DAX |
| 7b6be844 DW |
9 | |
| 10 | if DAX | |
| 11 | ||
| 12 | config DEV_DAX | |
| 13 | tristate "Device DAX: direct access mapping device" | |
| dee41079 | 14 | depends on TRANSPARENT_HUGEPAGE |
| ab68f262 DW |
15 | help |
| 16 | Support raw access to differentiated (persistence, bandwidth, | |
| 17 | latency...) memory via an mmap(2) capable character | |
| 18 | device. Platform firmware or a device driver may identify a | |
| 19 | platform memory resource that is differentiated from the | |
| 20 | baseline memory pool. Mappings of a /dev/daxX.Y device impose | |
| 21 | restrictions that make the mapping behavior deterministic. | |
| 22 | ||
| ab68f262 DW |
23 | config DEV_DAX_PMEM |
| 24 | tristate "PMEM DAX: direct access to persistent memory" | |
| 74d71a01 | 25 | depends on LIBNVDIMM && NVDIMM_DAX && DEV_DAX |
| ab68f262 DW |
26 | default DEV_DAX |
| 27 | help | |
| 28 | Support raw access to persistent memory. Note that this | |
| 29 | driver consumes memory ranges allocated and exported by the | |
| 30 | libnvdimm sub-system. | |
| 31 | ||
| 32 | Say Y if unsure | |
| 33 | ||
| 34 | endif |