On Thursday, June 11, 2015 04:11:53 PM Dan Williams wrote: > From: Ross Zwisler <[email protected]> > > The libnvdimm implementation handles allocating dimm address space (DPA) > between PMEM and BLK mode interfaces. After DPA has been allocated from > a BLK-region to a BLK-namespace the nd_blk driver attaches to handle I/O > as a struct bio based block device. Unlike PMEM, BLK is required to > handle platform specific details like mmio register formats and memory > controller interleave. For this reason the libnvdimm generic nd_blk > driver calls back into the bus provider to carry out the I/O. > > This initial implementation handles the BLK interface defined by the > ACPI 6 NFIT [1] and the NVDIMM DSM Interface Example [2] composed from > DCR (dimm control region), BDW (block data window), IDT (interleave > descriptor) NFIT structures and the hardware register format. > [1]: http://www.uefi.org/sites/default/files/resources/ACPI_6.0.pdf > [2]: http://pmem.io/documents/NVDIMM_DSM_Interface_Example.pdf > > Cc: Andy Lutomirski <[email protected]> > Cc: Boaz Harrosh <[email protected]> > Cc: H. Peter Anvin <[email protected]> > Cc: Jens Axboe <[email protected]> > Cc: Ingo Molnar <[email protected]> > Cc: Christoph Hellwig <[email protected]> > Signed-off-by: Ross Zwisler <[email protected]> > Signed-off-by: Dan Williams <[email protected]>
For the ACPI part: Acked-by: Rafael J. Wysocki <[email protected]> -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
