tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1menuconfig 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
14if DEV_DAX
15
16config 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
27config NR_DEV_DAX
28 int "Maximum number of Device-DAX instances"
29 default 32768
30 range 256 2147483647
31
32endif