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| author | Dan Williams <dan.j.williams@intel.com> | 2015-06-09 14:13:37 -0400 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2015-06-24 21:24:10 -0400 |
| commit | 18da2c9ee41a036bf470dbad73c18a815725d36e (patch) | |
| tree | c69bb8f44dcb1df4c7579184c3051e5b51729d87 /drivers/nvdimm/Kconfig | |
| parent | 3d88002e4a7bd40f355550284c6cd140e6fe29dc (diff) | |
| download | lwn-18da2c9ee41a036bf470dbad73c18a815725d36e.tar.gz lwn-18da2c9ee41a036bf470dbad73c18a815725d36e.zip | |
libnvdimm, pmem: move pmem to drivers/nvdimm/
Prepare the pmem driver to consume PMEM namespaces emitted by regions of
an nvdimm_bus instance. No functional change.
Acked-by: Christoph Hellwig <hch@lst.de>
Tested-by: Toshi Kani <toshi.kani@hp.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/nvdimm/Kconfig')
| -rw-r--r-- | drivers/nvdimm/Kconfig | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/drivers/nvdimm/Kconfig b/drivers/nvdimm/Kconfig index 92933551f846..07a29113b870 100644 --- a/drivers/nvdimm/Kconfig +++ b/drivers/nvdimm/Kconfig @@ -1,4 +1,4 @@ -config LIBNVDIMM +menuconfig LIBNVDIMM tristate "NVDIMM (Non-Volatile Memory Device) Support" depends on PHYS_ADDR_T_64BIT depends on BLK_DEV @@ -13,3 +13,24 @@ config LIBNVDIMM CONFIG_DAX). A BLK namespace refers to an NVDIMM control region which exposes an mmio register set for windowed access mode to non-volatile memory. + +if LIBNVDIMM + +config BLK_DEV_PMEM + tristate "PMEM: Persistent memory block device support" + default LIBNVDIMM + depends on HAS_IOMEM + help + Memory ranges for PMEM are described by either an NFIT + (NVDIMM Firmware Interface Table, see CONFIG_NFIT_ACPI), a + non-standard OEM-specific E820 memory type (type-12, see + CONFIG_X86_PMEM_LEGACY), or it is manually specified by the + 'memmap=nn[KMG]!ss[KMG]' kernel command line (see + Documentation/kernel-parameters.txt). This driver converts + these persistent memory ranges into block devices that are + capable of DAX (direct-access) file system mappings. See + Documentation/nvdimm/nvdimm.txt for more details. + + Say Y if you want to use an NVDIMM + +endif |