diff options
Diffstat (limited to 'drivers/nvdimm/Kconfig')
| -rw-r--r-- | drivers/nvdimm/Kconfig | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/nvdimm/Kconfig b/drivers/nvdimm/Kconfig index 72226acb5c0f..53c11621d5b1 100644 --- a/drivers/nvdimm/Kconfig +++ b/drivers/nvdimm/Kconfig @@ -21,6 +21,7 @@ config BLK_DEV_PMEM default LIBNVDIMM depends on HAS_IOMEM select ND_BTT if BTT + select ND_PFN if NVDIMM_PFN help Memory ranges for PMEM are described by either an NFIT (NVDIMM Firmware Interface Table, see CONFIG_NFIT_ACPI), a @@ -47,12 +48,16 @@ config ND_BLK (CONFIG_ACPI_NFIT), or otherwise exposes BLK-mode capabilities. +config ND_CLAIM + bool + config ND_BTT tristate config BTT bool "BTT: Block Translation Table (atomic sector updates)" default y if LIBNVDIMM + select ND_CLAIM help The Block Translation Table (BTT) provides atomic sector update semantics for persistent memory devices, so that @@ -65,4 +70,22 @@ config BTT Select Y if unsure +config ND_PFN + tristate + +config NVDIMM_PFN + bool "PFN: Map persistent (device) memory" + default LIBNVDIMM + depends on ZONE_DEVICE + select ND_CLAIM + help + Map persistent memory, i.e. advertise it to the memory + management sub-system. By default persistent memory does + not support direct I/O, RDMA, or any other usage that + requires a 'struct page' to mediate an I/O request. This + driver allocates and initializes the infrastructure needed + to support those use cases. + + Select Y if unsure + endif |