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