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- menuconfig DEV_DAX
- tristate "DAX: direct access to differentiated memory"
- default m if NVDIMM_DAX
- depends on TRANSPARENT_HUGEPAGE
- select SRCU
- help
- Support raw access to differentiated (persistence, bandwidth,
- latency...) memory via an mmap(2) capable character
- device. Platform firmware or a device driver may identify a
- platform memory resource that is differentiated from the
- baseline memory pool. Mappings of a /dev/daxX.Y device impose
- restrictions that make the mapping behavior deterministic.
- if DEV_DAX
- config DEV_DAX_PMEM
- tristate "PMEM DAX: direct access to persistent memory"
- depends on LIBNVDIMM && NVDIMM_DAX
- default DEV_DAX
- help
- Support raw access to persistent memory. Note that this
- driver consumes memory ranges allocated and exported by the
- libnvdimm sub-system.
- Say Y if unsure
- config NR_DEV_DAX
- int "Maximum number of Device-DAX instances"
- default 32768
- range 256 2147483647
- endif
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