diff mbox series

[v6,05/11] powerpc/hv-24x7: Add sysfs files inside hv-24x7 device to show processor details

Message ID 20200320125406.30995-6-kjain@linux.ibm.com (mailing list archive)
State Changes Requested
Headers show
Series powerpc/perf: Add json file metric support for the hv_24x7 socket/chip level events | expand

Checks

Context Check Description
snowpatch_ozlabs/apply_patch warning Failed to apply on branch powerpc/merge (a87b93bdf800a4d7a42d95683624a4516e516b4f)
snowpatch_ozlabs/apply_patch warning Failed to apply on branch powerpc/next (59ed2adf393109c56d383e568f2e57bb5ad6d901)
snowpatch_ozlabs/apply_patch warning Failed to apply on branch linus/master (6c90b86a745a446717fdf408c4a8a4631a5e8ee3)
snowpatch_ozlabs/apply_patch warning Failed to apply on branch powerpc/fixes (1d0c32ec3b860a32df593a22bad0d1dbc5546a59)
snowpatch_ozlabs/apply_patch warning Failed to apply on branch linux-next (d8f289c16fbb72e17b783175c1fb0942816264fd)
snowpatch_ozlabs/apply_patch fail Failed to apply to any branch

Commit Message

Kajol Jain March 20, 2020, 12:54 p.m. UTC 
To expose the system dependent parameter like total number of
sockets and numbers of chips per socket, patch adds two sysfs files.
"sockets" and "chips" are added to /sys/devices/hv_24x7/interface/
of the "hv_24x7" pmu.

Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
---
 arch/powerpc/perf/hv-24x7.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
diff mbox series

Patch

diff --git a/arch/powerpc/perf/hv-24x7.c b/arch/powerpc/perf/hv-24x7.c
index 9ae00f29bd21..a31bd5b88f7a 100644
--- a/arch/powerpc/perf/hv-24x7.c
+++ b/arch/powerpc/perf/hv-24x7.c
@@ -454,6 +454,20 @@  static ssize_t device_show_string(struct device *dev,
 	return sprintf(buf, "%s\n", (char *)d->var);
 }
 
+#ifdef CONFIG_PPC_RTAS
+static ssize_t sockets_show(struct device *dev,
+			    struct device_attribute *attr, char *buf)
+{
+	return sprintf(buf, "%d\n", physsockets);
+}
+
+static ssize_t chips_show(struct device *dev, struct device_attribute *attr,
+			  char *buf)
+{
+	return sprintf(buf, "%d\n", physchips);
+}
+#endif
+
 static struct attribute *device_str_attr_create_(char *name, char *str)
 {
 	struct dev_ext_attribute *attr = kzalloc(sizeof(*attr), GFP_KERNEL);
@@ -1100,6 +1114,10 @@  PAGE_0_ATTR(catalog_len, "%lld\n",
 		(unsigned long long)be32_to_cpu(page_0->length) * 4096);
 static BIN_ATTR_RO(catalog, 0/* real length varies */);
 static DEVICE_ATTR_RO(domains);
+#ifdef CONFIG_PPC_RTAS
+static DEVICE_ATTR_RO(sockets);
+static DEVICE_ATTR_RO(chips);
+#endif
 
 static struct bin_attribute *if_bin_attrs[] = {
 	&bin_attr_catalog,
@@ -1110,6 +1128,10 @@  static struct attribute *if_attrs[] = {
 	&dev_attr_catalog_len.attr,
 	&dev_attr_catalog_version.attr,
 	&dev_attr_domains.attr,
+#ifdef CONFIG_PPC_RTAS
+	&dev_attr_sockets.attr,
+	&dev_attr_chips.attr,
+#endif
 	NULL,
 };