Commit 7917f9cd authored by Jane Chu's avatar Jane Chu Committed by Dan Williams
Browse files

acpi/nfit: rely on mce->misc to determine poison granularity 



nfit_handle_mec() hardcode poison granularity at L1_CACHE_BYTES.
Instead, let the driver rely on mce->misc register to determine
the poison granularity.

Suggested-by: default avatarDan Williams <dan.j.williams@intel.com>
Reviewed-by: default avatarDan Williams <dan.j.williams@intel.com>
Signed-off-by: default avatarJane Chu <jane.chu@oracle.com>
Link: https://lore.kernel.org/r/20220422224508.440670-2-jane.chu@oracle.com


Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
parent d43fae7c

drivers/acpi/nfit/mce.c

+2 −2
Original line number Diff line number Diff line
@@ -32,6 +32,7 @@ static int nfit_handle_mce(struct notifier_block *nb, unsigned long val, 
	 */

	mutex_lock(&acpi_desc_lock);

	list_for_each_entry(acpi_desc, &acpi_descs, list) {

		unsigned int align = 1UL << MCI_MISC_ADDR_LSB(mce->misc);

		struct device *dev = acpi_desc->dev;

		int found_match = 0;
@@ -63,8 +64,7 @@ static int nfit_handle_mce(struct notifier_block *nb, unsigned long val, 


		/* If this fails due to an -ENOMEM, there is little we can do */

		nvdimm_bus_add_badrange(acpi_desc->nvdimm_bus,

				ALIGN(mce->addr, L1_CACHE_BYTES),

				L1_CACHE_BYTES);

				ALIGN_DOWN(mce->addr, align), align);

		nvdimm_region_notify(nfit_spa->nd_region,

				NVDIMM_REVALIDATE_POISON);