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| author | Dan Williams <dan.j.williams@intel.com> | 2016-02-05 01:51:00 +0100 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2016-02-19 20:47:26 +0100 |
| commit | 6697b2cf69d4363266ca47eaebc49ef13dabc1c9 (patch) | |
| tree | 149f0f3aa05a5407491fdc568239d0b6ed5387dd /drivers/spi/spi-sirf.c | |
| parent | Linux 4.5-rc4 (diff) | |
| download | linux-6697b2cf69d4363266ca47eaebc49ef13dabc1c9.tar.xz linux-6697b2cf69d4363266ca47eaebc49ef13dabc1c9.zip | |
nfit: fix multi-interface dimm handling, acpi6.1 compatibility
ACPI 6.1 clarified that multi-interface dimms require multiple control
region entries (DCRs) per dimm. Previously we were assuming that a
control region is only present when block-data-windows are present.
This implementation was done with an eye to be compatibility with the
looser ACPI 6.0 interpretation of this table.
1/ When coalescing the memory device (MEMDEV) tables for a single dimm,
coalesce on device_handle rather than control region index.
2/ Whenever we disocver a control region with non-zero block windows
re-scan for block-data-window (BDW) entries.
We may need to revisit this if a DIMM ever implements a format interface
outside of blk or pmem, but that is not on the foreseeable horizon.
Cc: <stable@vger.kernel.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/spi/spi-sirf.c')
0 files changed, 0 insertions, 0 deletions