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authorJane Chu <jane.chu@oracle.com>2022-04-23 01:45:02 +0300
committerDan Williams <dan.j.williams@intel.com>2022-05-16 21:46:44 +0300
commit7917f9cdb5032ac065ac6a5415f5722f215b2608 (patch)
tree499aba03c434c2819483d1b15cd3b2b99ec234a8 /drivers/acpi/nfit
parentd43fae7c4d3e6dfee9d26287907dbe8e27ff8846 (diff)
downloadlinux-7917f9cdb5032ac065ac6a5415f5722f215b2608.tar.xz
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>
Diffstat (limited to 'drivers/acpi/nfit')
-rw-r--r--drivers/acpi/nfit/mce.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/acpi/nfit/mce.c b/drivers/acpi/nfit/mce.c
index ee8d9973f60b..d48a388b796e 100644
--- a/drivers/acpi/nfit/mce.c
+++ b/drivers/acpi/nfit/mce.c
@@ -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);