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Commit 30e6d7bf authored by Dave Jiang's avatar Dave Jiang Committed by Ross Zwisler
Browse files

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: default avatarDave Jiang <dave.jiang@intel.com>
Reviewed-by: default avatarRoss Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: default avatarRoss Zwisler <ross.zwisler@linux.intel.com>
parent 06e8ccda

drivers/acpi/nfit/core.c

+3 −0
Original line number Diff line number Diff line
@@ -2675,6 +2675,9 @@ static int acpi_nfit_register_region(struct acpi_nfit_desc *acpi_desc, 
	if(acpi_desc->platform_cap & ACPI_NFIT_CAPABILITY_CACHE_FLUSH)

		set_bit(ND_REGION_PERSIST_CACHE, &ndr_desc->flags);



	if (acpi_desc->platform_cap & ACPI_NFIT_CAPABILITY_MEM_FLUSH)

		set_bit(ND_REGION_PERSIST_MEMCTRL, &ndr_desc->flags);



	list_for_each_entry(nfit_memdev, &acpi_desc->memdevs, list) {

		struct acpi_nfit_memory_map *memdev = nfit_memdev->memdev;

		struct nd_mapping_desc *mapping;

include/linux/libnvdimm.h

+6 −0
Original line number Diff line number Diff line
@@ -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,