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| author | Ross Zwisler <ross.zwisler@linux.intel.com> | 2015-07-10 11:06:13 -0600 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2015-07-10 14:35:45 -0400 |
| commit | c2ad29540cb913bd9e526fae77c35c7fb45f24a3 (patch) | |
| tree | 739e9d071388ca1e53238a3e5f76d716b5597f48 /fs | |
| parent | 9d27a87ec9e1317d368b1e5e3f4808078baa8c4c (diff) | |
| download | linux-c2ad29540cb913bd9e526fae77c35c7fb45f24a3.tar.bz2 | |
nfit: update block I/O path to use PMEM API
Update the nfit block I/O path to use the new PMEM API and to adhere to
the read/write flows outlined in the "NVDIMM Block Window Driver
Writer's Guide":
http://pmem.io/documents/NVDIMM_Driver_Writers_Guide.pdf
This includes adding support for targeted NVDIMM flushes called "flush
hints" in the ACPI 6.0 specification:
http://www.uefi.org/sites/default/files/resources/ACPI_6.0.pdf
For performance and media durability the mapping for a BLK aperture is
moved to a write-combining mapping which is consistent with
memcpy_to_pmem() and wmb_blk().
Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'fs')
0 files changed, 0 insertions, 0 deletions