diff options
| author | Dave Jiang <dave.jiang@intel.com> | 2018-01-31 12:45:38 -0700 |
|---|---|---|
| committer | Ross Zwisler <ross.zwisler@linux.intel.com> | 2018-02-01 15:01:15 -0700 |
| commit | 06e8ccdab15f46dfd31292e2b75d744bc5fc2a7c (patch) | |
| tree | 00ffd44862f319520b55d29e6b4a6feef60ffbe9 /drivers/acpi/nfit/nfit.h | |
| parent | a7f2766ac7c359216da4e714dc117c881e39a74a (diff) | |
acpi: nfit: Add support for detect platform CPU cache flush on power loss
In ACPI 6.2a the platform capability structure has been added to the NFIT
tables. That provides software the ability to determine whether a system
supports the auto flushing of CPU caches on power loss. If the capability
is supported, we do not need to do dax_flush(). Plumbing the path to set the
property on per region from the NFIT tables.
This patch depends on the ACPI NFIT 6.2a platform capabilities support code
in include/acpi/actbl1.h.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Diffstat (limited to 'drivers/acpi/nfit/nfit.h')
| -rw-r--r-- | drivers/acpi/nfit/nfit.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/acpi/nfit/nfit.h b/drivers/acpi/nfit/nfit.h index f0cf18b2da8b..50d36e166d70 100644 --- a/drivers/acpi/nfit/nfit.h +++ b/drivers/acpi/nfit/nfit.h @@ -202,6 +202,7 @@ struct acpi_nfit_desc { unsigned long dimm_cmd_force_en; unsigned long bus_cmd_force_en; unsigned long bus_nfit_cmd_force_en; + unsigned int platform_cap; int (*blk_do_io)(struct nd_blk_region *ndbr, resource_size_t dpa, void *iobuf, u64 len, int rw); }; |