path: root/drivers/dax/Kconfig

menuconfig DEV_DAX
	tristate "DAX: direct access to differentiated memory"
	default m if NVDIMM_DAX
	depends on TRANSPARENT_HUGEPAGE
	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 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

endif