diff mbox series

[v5,05/11] powerpc/hv-24x7: Add sysfs files inside hv-24x7 device to show processor details

Message ID 20200317062333.14555-6-kjain@linux.ibm.com (mailing list archive)
State Superseded
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 (ab326587bb5fb91cc97df9b9f48e9e1469f04621)
snowpatch_ozlabs/apply_patch warning Failed to apply on branch powerpc/next (247257b03b04398ca07da4bce3d17bee25d623cb)
snowpatch_ozlabs/apply_patch warning Failed to apply on branch linus/master (fb33c6510d5595144d585aa194d377cf74d31911)
snowpatch_ozlabs/apply_patch warning Failed to apply on branch powerpc/fixes (59bee45b9712c759ea4d3dcc4eff1752f3a66558)
snowpatch_ozlabs/apply_patch warning Failed to apply on branch linux-next (8548fd2f20ed19b0e8c0585b71fdfde1ae00ae3c)
snowpatch_ozlabs/apply_patch fail Failed to apply to any branch

Commit Message

Kajol Jain March 17, 2020, 6:23 a.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,
 };