drivers/dax/Kconfig

   1 menuconfig DEV_DAX
   2         tristate "DAX: direct access to differentiated memory"
   3         default m if NVDIMM_DAX
   4         depends on TRANSPARENT_HUGEPAGE
   5         help
   6           Support raw access to differentiated (persistence, bandwidth,
   7           latency...) memory via an mmap(2) capable character
   8           device.  Platform firmware or a device driver may identify a
   9           platform memory resource that is differentiated from the
  10           baseline memory pool.  Mappings of a /dev/daxX.Y device impose
  11           restrictions that make the mapping behavior deterministic.
  12
  13 if DEV_DAX
  14
  15 config DEV_DAX_PMEM
  16         tristate "PMEM DAX: direct access to persistent memory"
  17         depends on LIBNVDIMM && NVDIMM_DAX
  18         default DEV_DAX
  19         help
  20           Support raw access to persistent memory.  Note that this
  21           driver consumes memory ranges allocated and exported by the
  22           libnvdimm sub-system.
  23
  24           Say Y if unsure
  25
  26 config NR_DEV_DAX
  27         int "Maximum number of Device-DAX instances"
  28         default 32768
  29         range 256 2147483647
  30
  31 endif