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authorAaron Miller <aaronmiller@fb.com>2016-11-03 15:01:53 -0700
committerBorislav Petkov <bp@suse.de>2017-01-19 10:29:40 +0100
commit4fb6fde74d6724dc6d64ec729f950fbdeefd7f07 (patch)
treed0030c8f6195834f3d410ca70ce5f4561bc34ec9 /drivers/edac
parent2287c63643f0f52d9d5452b9dc4079aec0889fe8 (diff)
EDAC: Expose per-DIMM error counts in sysfs
The old csrowX sysfs directories have per-csrow error counters, but the new dimmX directories do not currently expose error counts. EDAC already keeps these counts, add them to sysfs so per-DIMM counts are still available when CONFIG_EDAC_LEGACY_SYSFS=n. Signed-off-by: Aaron Miller <aaronmiller@fb.com> Cc: linux-edac <linux-edac@vger.kernel.org> Link: http://lkml.kernel.org/r/20161103220153.3997328-1-aaronmiller@fb.com Signed-off-by: Borislav Petkov <bp@suse.de>
Diffstat (limited to 'drivers/edac')
-rw-r--r--drivers/edac/edac_mc_sysfs.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c
index cc45b1dc3321..445862dac273 100644
--- a/drivers/edac/edac_mc_sysfs.c
+++ b/drivers/edac/edac_mc_sysfs.c
@@ -569,6 +569,40 @@ static ssize_t dimmdev_edac_mode_show(struct device *dev,
return sprintf(data, "%s\n", edac_caps[dimm->edac_mode]);
}
+static ssize_t dimmdev_ce_count_show(struct device *dev,
+ struct device_attribute *mattr,
+ char *data)
+{
+ struct dimm_info *dimm = to_dimm(dev);
+ u32 count;
+ int off;
+
+ off = EDAC_DIMM_OFF(dimm->mci->layers,
+ dimm->mci->n_layers,
+ dimm->location[0],
+ dimm->location[1],
+ dimm->location[2]);
+ count = dimm->mci->ce_per_layer[dimm->mci->n_layers-1][off];
+ return sprintf(data, "%u\n", count);
+}
+
+static ssize_t dimmdev_ue_count_show(struct device *dev,
+ struct device_attribute *mattr,
+ char *data)
+{
+ struct dimm_info *dimm = to_dimm(dev);
+ u32 count;
+ int off;
+
+ off = EDAC_DIMM_OFF(dimm->mci->layers,
+ dimm->mci->n_layers,
+ dimm->location[0],
+ dimm->location[1],
+ dimm->location[2]);
+ count = dimm->mci->ue_per_layer[dimm->mci->n_layers-1][off];
+ return sprintf(data, "%u\n", count);
+}
+
/* dimm/rank attribute files */
static DEVICE_ATTR(dimm_label, S_IRUGO | S_IWUSR,
dimmdev_label_show, dimmdev_label_store);
@@ -577,6 +611,8 @@ static DEVICE_ATTR(size, S_IRUGO, dimmdev_size_show, NULL);
static DEVICE_ATTR(dimm_mem_type, S_IRUGO, dimmdev_mem_type_show, NULL);
static DEVICE_ATTR(dimm_dev_type, S_IRUGO, dimmdev_dev_type_show, NULL);
static DEVICE_ATTR(dimm_edac_mode, S_IRUGO, dimmdev_edac_mode_show, NULL);
+static DEVICE_ATTR(dimm_ce_count, S_IRUGO, dimmdev_ce_count_show, NULL);
+static DEVICE_ATTR(dimm_ue_count, S_IRUGO, dimmdev_ue_count_show, NULL);
/* attributes of the dimm<id>/rank<id> object */
static struct attribute *dimm_attrs[] = {
@@ -586,6 +622,8 @@ static struct attribute *dimm_attrs[] = {
&dev_attr_dimm_mem_type.attr,
&dev_attr_dimm_dev_type.attr,
&dev_attr_dimm_edac_mode.attr,
+ &dev_attr_dimm_ce_count.attr,
+ &dev_attr_dimm_ue_count.attr,
NULL,
};