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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: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Jane Chu <jane.chu@oracle.com>
Link: https://lore.kernel.org/r/20220422224508.440670-2-jane.chu@oracle.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Jane Chu 2022-04-22 16:45:02 -06:00 committed by Dan Williams
parent d43fae7c4d
commit 7917f9cdb5
1 changed files with 2 additions and 2 deletions
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4
drivers/acpi/nfit/mce.c
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@ -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);