From: Kajol Jain <kjain@linux.ibm.com>
To: mpe@ellerman.id.au, linuxppc-dev@lists.ozlabs.org,
linux-nvdimm@lists.01.org, linux-kernel@vger.kernel.org
Cc: maddy@linux.vnet.ibm.com, aneesh.kumar@linux.ibm.com,
vaibhav@linux.ibm.com, atrajeev@linux.vnet.ibm.com,
kjain@linux.ibm.com, peterz@infradead.org, tglx@linutronix.de
Subject: [RFC 3/4] powerpc/papr_scm: Document papr_scm sysfs event format entries
Date: Wed, 12 May 2021 22:08:23 +0530 [thread overview]
Message-ID: <20210512163824.255370-4-kjain@linux.ibm.com> (raw)
In-Reply-To: <20210512163824.255370-1-kjain@linux.ibm.com>
This patch add event format and events details in ABI
documentation
Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
---
Documentation/ABI/testing/sysfs-bus-papr-pmem | 25 +++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/Documentation/ABI/testing/sysfs-bus-papr-pmem b/Documentation/ABI/testing/sysfs-bus-papr-pmem
index 8316c33862a0..216f70deca7e 100644
--- a/Documentation/ABI/testing/sysfs-bus-papr-pmem
+++ b/Documentation/ABI/testing/sysfs-bus-papr-pmem
@@ -59,3 +59,28 @@ Description:
* "CchRHCnt" : Cache Read Hit Count
* "CchWHCnt" : Cache Write Hit Count
* "FastWCnt" : Fast Write Count
+
+What: /sys/devices/nmemX/format
+Date: May 2021
+Contact: linuxppc-dev <linuxppc-dev@lists.ozlabs.org>, linux-nvdimm@lists.01.org,
+Description: (RO) Attribute group to describe the magic bits
+ that go into perf_event_attr.config for a particular pmu.
+ (See ABI/testing/sysfs-bus-event_source-devices-format).
+
+ Each attribute under this group defines a bit range of the
+ perf_event_attr.config. Supported attributes is listed
+ below::
+
+ event = "config:0-37" - event ID
+
+ For example::
+ noopstat = "event=0x1"
+
+What: /sys/devices/nmemX/events
+Date: May 2021
+Contact: linuxppc-dev <linuxppc-dev@lists.ozlabs.org>, linux-nvdimm@lists.01.org,
+Description: (RO) Attribute group to describe performance monitoring
+ events specific to papr_pmem. Each attribute in this group describes
+ a single performance monitoring event supported by this nvdimm pmu.
+ The name of the file is the name of the event.
+ (See ABI/testing/sysfs-bus-event_source-devices-events).
--
2.27.0
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next prev parent reply other threads:[~2021-05-12 16:39 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-12 16:38 [RFC 0/4] Add perf interface to expose nvdimm performance stats Kajol Jain
2021-05-12 16:38 ` [RFC 1/4] drivers/nvdimm: " Kajol Jain
2021-05-12 17:27 ` Peter Zijlstra
2021-05-13 12:26 ` kajoljain
2021-05-14 11:47 ` Peter Zijlstra
2021-05-17 6:43 ` kajoljain
2021-05-12 16:38 ` [RFC 2/4] powerpc/papr_scm: Add perf interface support Kajol Jain
2021-05-12 16:38 ` Kajol Jain [this message]
2021-05-12 16:38 ` [RFC 4/4] powerpc/papr_scm: Add cpu hotplug support for nvdimm pmu device Kajol Jain
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