acpi: nfit: add persistent memory control flag for nd_region

Propagate the ADR attribute flag from the NFIT platform capabilities
sub-table to nd_region.

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>

1 files changed, 6 insertions, 0 deletions

diff --git a/include/linux/libnvdimm.h b/include/linux/libnvdimm.h
index f2fc0da4da04..ff855ed965fb 100644
--- a/include/linux/libnvdimm.h
+++ b/include/linux/libnvdimm.h
@@ -52,6 +52,12 @@ enum {
          * system power loss.
          */
         ND_REGION_PERSIST_CACHE = 1,
+        /*
+         * Platform provides mechanisms to automatically flush outstanding
+         * write data from memory controler to pmem on system power loss.
+         * (ADR)
+         */
+        ND_REGION_PERSIST_MEMCTRL = 2,
 
         /* mark newly adjusted resources as requiring a label update */
         DPA_RESOURCE_ADJUSTED = 1 << 0,