From: Kajol Jain <kjain@linux.ibm.com>
To: acme@kernel.org, linuxppc-dev@lists.ozlabs.org,
mpe@ellerman.id.au, sukadev@linux.vnet.ibm.com
Cc: mark.rutland@arm.com, maddy@linux.vnet.ibm.com,
peterz@infradead.org, yao.jin@linux.intel.com, mingo@kernel.org,
kan.liang@linux.intel.com, ak@linux.intel.com,
alexander.shishkin@linux.intel.com, anju@linux.vnet.ibm.com,
mamatha4@linux.vnet.ibm.com, ravi.bangoria@linux.ibm.com,
kjain@linux.ibm.com, jmario@redhat.com, namhyung@kernel.org,
tglx@linutronix.de, mpetlan@redhat.com,
gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org,
linux-perf-users@vger.kernel.org, jolsa@kernel.org
Subject: [PATCH v7 3/5] powerpc/hv-24x7: Add sysfs files inside hv-24x7 device to show processor details
Date: Fri, 27 Mar 2020 12:06:40 +0530 [thread overview]
Message-ID: <20200327063642.26175-4-kjain@linux.ibm.com> (raw)
In-Reply-To: <20200327063642.26175-1-kjain@linux.ibm.com>
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 --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,
};
--
2.18.1
next prev parent reply other threads:[~2020-03-27 6:46 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-27 6:36 [PATCH v7 0/5] powerpc/hv-24x7: Expose chip/sockets info to add json file metric support for the hv_24x7 socket/chip level events Kajol Jain
2020-03-27 6:36 ` [PATCH v7 1/5] powerpc/perf/hv-24x7: Fix inconsistent output values incase multiple hv-24x7 events run Kajol Jain
2020-04-29 8:56 ` Madhavan Srinivasan
2020-03-27 6:36 ` [PATCH v7 2/5] powerpc/hv-24x7: Add rtas call in hv-24x7 driver to get processor details Kajol Jain
2020-04-29 8:02 ` Madhavan Srinivasan
2020-04-29 11:31 ` Michael Ellerman
2020-05-06 9:53 ` kajoljain
2020-03-27 6:36 ` Kajol Jain [this message]
2020-04-29 9:08 ` [PATCH v7 3/5] powerpc/hv-24x7: Add sysfs files inside hv-24x7 device to show " Madhavan Srinivasan
2020-04-29 11:32 ` Michael Ellerman
2020-04-29 11:33 ` Michael Ellerman
2020-03-27 6:36 ` [PATCH v7 4/5] Documentation/ABI: Add ABI documentation for chips and sockets Kajol Jain
2020-03-27 6:36 ` [PATCH v7 5/5] powerpc/hv-24x7: Update post_mobility_fixup() to handle migration Kajol Jain
2020-04-29 9:10 ` Madhavan Srinivasan
2020-04-29 11:37 ` Michael Ellerman
2020-05-05 6:57 ` kajoljain
2020-05-05 7:05 ` Michael Ellerman
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