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-rw-r--r--drivers/perf/arm-cmn.c20
1 files changed, 16 insertions, 4 deletions
diff --git a/drivers/perf/arm-cmn.c b/drivers/perf/arm-cmn.c
index 4a1dc4b527f6..b8c15878bc86 100644
--- a/drivers/perf/arm-cmn.c
+++ b/drivers/perf/arm-cmn.c
@@ -1199,19 +1199,31 @@ static ssize_t arm_cmn_cpumask_show(struct device *dev,
static struct device_attribute arm_cmn_cpumask_attr =
__ATTR(cpumask, 0444, arm_cmn_cpumask_show, NULL);
-static struct attribute *arm_cmn_cpumask_attrs[] = {
+static ssize_t arm_cmn_identifier_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct arm_cmn *cmn = to_cmn(dev_get_drvdata(dev));
+
+ return sysfs_emit(buf, "%03x%02x\n", cmn->part, cmn->rev);
+}
+
+static struct device_attribute arm_cmn_identifier_attr =
+ __ATTR(identifier, 0444, arm_cmn_identifier_show, NULL);
+
+static struct attribute *arm_cmn_other_attrs[] = {
&arm_cmn_cpumask_attr.attr,
+ &arm_cmn_identifier_attr.attr,
NULL,
};
-static const struct attribute_group arm_cmn_cpumask_attr_group = {
- .attrs = arm_cmn_cpumask_attrs,
+static const struct attribute_group arm_cmn_other_attrs_group = {
+ .attrs = arm_cmn_other_attrs,
};
static const struct attribute_group *arm_cmn_attr_groups[] = {
&arm_cmn_event_attrs_group,
&arm_cmn_format_attrs_group,
- &arm_cmn_cpumask_attr_group,
+ &arm_cmn_other_attrs_group,
NULL
};