nvdimm.lists.linux.dev archive mirror
 help / color / mirror / Atom feed
From: Kajol Jain <kjain@linux.ibm.com>
To: mpe@ellerman.id.au, linuxppc-dev@lists.ozlabs.org,
	nvdimm@lists.linux.dev, linux-kernel@vger.kernel.org,
	peterz@infradead.org
Cc: maddy@linux.vnet.ibm.com, santosh@fossix.org,
	aneesh.kumar@linux.ibm.com, vaibhav@linux.ibm.com,
	dan.j.williams@intel.com, ira.weiny@intel.com,
	atrajeev@linux.vnet.ibm.com, tglx@linutronix.de,
	kjain@linux.ibm.com, rnsastry@linux.ibm.com
Subject: [PATCH 4/4] powerpc/papr_scm: Document papr_scm sysfs event format entries
Date: Tue,  8 Jun 2021 17:27:00 +0530	[thread overview]
Message-ID: <20210608115700.85933-5-kjain@linux.ibm.com> (raw)
In-Reply-To: <20210608115700.85933-1-kjain@linux.ibm.com>

Details is added for the event, cpumask and format attributes
in the ABI documentation.

Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
---
 Documentation/ABI/testing/sysfs-bus-papr-pmem | 31 +++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-bus-papr-pmem b/Documentation/ABI/testing/sysfs-bus-papr-pmem
index 92e2db0e2d3d..be91de341454 100644
--- a/Documentation/ABI/testing/sysfs-bus-papr-pmem
+++ b/Documentation/ABI/testing/sysfs-bus-papr-pmem
@@ -59,3 +59,34 @@ Description:
 		* "CchRHCnt" : Cache Read Hit Count
 		* "CchWHCnt" : Cache Write Hit Count
 		* "FastWCnt" : Fast Write Count
+
+What:		/sys/devices/nmemX/format
+Date:		June 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 attribute is listed
+                below::
+
+		    event  = "config:0-4"  - event ID
+
+		For example::
+		    noopstat = "event=0x1"
+
+What:		/sys/devices/nmemX/events
+Date:		June 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-scm. 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).
+
+What:		/sys/devices/nmemX/cpumask
+Date:		June 2021
+Contact:	linuxppc-dev <linuxppc-dev@lists.ozlabs.org>, linux-nvdimm@lists.01.org,
+Description:	(RO) This sysfs file exposes the cpumask which is designated to make
+                HCALLs to retrieve nvdimm pmu event counter data.
-- 
2.27.0


      parent reply	other threads:[~2021-06-08 11:59 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-08 11:56 [PATCH 0/4] Add perf interface to expose nvdimm Kajol Jain
2021-06-08 11:56 ` [PATCH 1/4] drivers/nvdimm: Add nvdimm pmu structure Kajol Jain
2021-06-08 11:56 ` [PATCH 2/4] drivers/nvdimm: Add perf interface to expose nvdimm performance stats Kajol Jain
2021-06-08 17:36   ` Peter Zijlstra
2021-06-09 12:12     ` kajoljain
2021-06-08 11:56 ` [PATCH 3/4] powerpc/papr_scm: Add perf interface support Kajol Jain
2021-06-08 11:57 ` Kajol Jain [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210608115700.85933-5-kjain@linux.ibm.com \
    --to=kjain@linux.ibm.com \
    --cc=aneesh.kumar@linux.ibm.com \
    --cc=atrajeev@linux.vnet.ibm.com \
    --cc=dan.j.williams@intel.com \
    --cc=ira.weiny@intel.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linuxppc-dev@lists.ozlabs.org \
    --cc=maddy@linux.vnet.ibm.com \
    --cc=mpe@ellerman.id.au \
    --cc=nvdimm@lists.linux.dev \
    --cc=peterz@infradead.org \
    --cc=rnsastry@linux.ibm.com \
    --cc=santosh@fossix.org \
    --cc=tglx@linutronix.de \
    --cc=vaibhav@linux.ibm.com \
    --subject='Re: [PATCH 4/4] powerpc/papr_scm: Document papr_scm sysfs event format entries' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).