* [PATCH] powernv/opal-sensor-groups: Add documentation for the sysfs interfaces
@ 2019-11-26 13:51 Gautham R. Shenoy
2020-04-01 12:53 ` Michael Ellerman
0 siblings, 1 reply; 2+ messages in thread
From: Gautham R. Shenoy @ 2019-11-26 13:51 UTC (permalink / raw)
To: Michael Ellerman, Vaidyanathan Srinivasan, Shilpasri G Bhat
Cc: linuxppc-dev, linux-kernel, Shilpasri G Bhat, Gautham R. Shenoy
From: Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com>
Commit bf9571550f52 ("powerpc/powernv: Add support to clear sensor
groups data") added a mechanism to clear sensor-group data via a sysfs
interface. However, the ABI for that interface has not been
documented.
This patch documents the ABI for the sysfs interface for sensor-groups
and clearing the sensor-groups.
This patch was originally sent by Shilpasri G Bhat on the mailing list:
https://lkml.org/lkml/2018/8/1/85
Signed-off-by: Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com>
Signed-off-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
---
.../ABI/testing/sysfs-firmware-opal-sensor-groups | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
create mode 100644 Documentation/ABI/testing/sysfs-firmware-opal-sensor-groups
diff --git a/Documentation/ABI/testing/sysfs-firmware-opal-sensor-groups b/Documentation/ABI/testing/sysfs-firmware-opal-sensor-groups
new file mode 100644
index 0000000..3a2dfe5
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-firmware-opal-sensor-groups
@@ -0,0 +1,21 @@
+What: /sys/firmware/opal/sensor_groups
+Date: August 2017
+Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+Description: Sensor groups directory for POWER9 powernv servers
+
+ Each folder in this directory contains a sensor group
+ which are classified based on type of the sensor
+ like power, temperature, frequency, current, etc. They
+ can also indicate the group of sensors belonging to
+ different owners like CSM, Profiler, Job-Scheduler
+
+What: /sys/firmware/opal/sensor_groups/<sensor_group_name>/clear
+Date: August 2017
+Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+Description: Sysfs file to clear the min-max of all the sensors
+ belonging to the group.
+
+ Writing 1 to this file will clear the minimum and
+ maximum values of all the sensors in the group.
+ In POWER9, the min-max of a sensor is the historical minimum
+ and maximum value of the sensor cached by OCC.
--
1.9.4
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] powernv/opal-sensor-groups: Add documentation for the sysfs interfaces
2019-11-26 13:51 [PATCH] powernv/opal-sensor-groups: Add documentation for the sysfs interfaces Gautham R. Shenoy
@ 2020-04-01 12:53 ` Michael Ellerman
0 siblings, 0 replies; 2+ messages in thread
From: Michael Ellerman @ 2020-04-01 12:53 UTC (permalink / raw)
To: Gautham R. Shenoy, Vaidyanathan Srinivasan, Shilpasri G Bhat
Cc: Gautham R. Shenoy, linuxppc-dev, linux-kernel, Shilpasri G Bhat
On Tue, 2019-11-26 at 13:51:14 UTC, "Gautham R. Shenoy" wrote:
> From: Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com>
>
> Commit bf9571550f52 ("powerpc/powernv: Add support to clear sensor
> groups data") added a mechanism to clear sensor-group data via a sysfs
> interface. However, the ABI for that interface has not been
> documented.
>
> This patch documents the ABI for the sysfs interface for sensor-groups
> and clearing the sensor-groups.
>
> This patch was originally sent by Shilpasri G Bhat on the mailing list:
> https://lkml.org/lkml/2018/8/1/85
>
> Signed-off-by: Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com>
> Signed-off-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/32377bd2cbb62e23ac0a1aaaf0048957c5fd9f02
cheers
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2020-04-01 12:53 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-11-26 13:51 [PATCH] powernv/opal-sensor-groups: Add documentation for the sysfs interfaces Gautham R. Shenoy
2020-04-01 12:53 ` Michael Ellerman
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).