swh:1:snp:173f8deb0c56c557784b4fd217e7608ac6197844
Raw File
Tip revision: 464e1d5f23cca236b930ef068c328a64cab78fb1 authored by Linus Torvalds on 24 December 2017, 04:47:16 UTC
Linux 4.15-rc5
Tip revision: 464e1d5
Kconfig
menuconfig DAX
	tristate "DAX: direct access to differentiated memory"
	select SRCU
	default m if NVDIMM_DAX

if DAX

config DEV_DAX
	tristate "Device DAX: direct access mapping device"
	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.


config DEV_DAX_PMEM
	tristate "PMEM DAX: direct access to persistent memory"
	depends on LIBNVDIMM && NVDIMM_DAX && DEV_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
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