| Message ID | 1511222021-562-3-git-send-email-eajames@linux.vnet.ibm.com (mailing list archive) |
|---|---|
| State | Changes Requested |
| Headers | show |
On Mon, Nov 20, 2017 at 05:53:31PM -0600, eajames@linux.vnet.ibm.com wrote: > From: "Edward A. James" <eajames@us.ibm.com> > > Detail the sysfs attributes provided by the occ-hwmon driver. > This describes my problem with this driver: All the sysfs attributes described here are not really hardware monitoring related. A later patch describes this in more detail: "The OCC can provide the raw sensor data as well as perform thermal and power management on the system." Is it possible to extract the non-hwmon functionality (maybe into an mfd driver) and limit the hwmon part to just hardware monitoring ? Guenter > Signed-off-by: Edward A. James <eajames@us.ibm.com> > --- > Documentation/ABI/testing/sysfs-driver-occ-hwmon | 85 ++++++++++++++++++++++++ > 1 file changed, 85 insertions(+) > create mode 100644 Documentation/ABI/testing/sysfs-driver-occ-hwmon > > diff --git a/Documentation/ABI/testing/sysfs-driver-occ-hwmon b/Documentation/ABI/testing/sysfs-driver-occ-hwmon > new file mode 100644 > index 0000000..8873cc3 > --- /dev/null > +++ b/Documentation/ABI/testing/sysfs-driver-occ-hwmon > @@ -0,0 +1,85 @@ > +What: /sys/bus/platform/drivers/occ-hwmon/<dev>/occ_active > +Date: November 2017 > +KernelVersion: 4.14 > +Contact: eajames@us.ibm.com > +Description: > + A read-only attribute that indicates (with a "1" or a "0", > + respectively) whether or not this OCC is in the "active" state. > + > +What: /sys/bus/platform/drivers/occ-hwmon/<dev>/occ_dvfs_ot > +Date: November 2017 > +KernelVersion: 4.14 > +Contact: eajames@us.ibm.com > +Description: > + A read-only attribute that indicates (with a "1" or a "0", > + respectively) whether or not this OCC has limited the processor > + frequency due to over-temperature. > + > +What: /sys/bus/platform/drivers/occ-hwmon/<dev>/occ_dvfs_power > +Date: November 2017 > +KernelVersion: 4.14 > +Contact: eajames@us.ibm.com > +Description: > + A read-only attribute that indicates (with a "1" or a "0", > + respectively) whether or not this OCC has limited the processor > + frequency due to power usage. > + > +What: /sys/bus/platform/drivers/occ-hwmon/<dev>/occ_error > +Date: November 2017 > +KernelVersion: 4.14 > +Contact: eajames@us.ibm.com > +Description: > + A read-only attribute that indicates any error condition > + observed by the OCC or detected by the driver. Reading the > + attribute will return an integer. A negative integer indicates > + either an error response from the OCC or bus error or other > + error condition detected by the driver. A "0" indicates no > + error. > + > +What: /sys/bus/platform/drivers/occ-hwmon/<dev>/occ_master > +Date: November 2017 > +KernelVersion: 4.14 > +Contact: eajames@us.ibm.com > +Description: > + A read-only attribute that indicates (with a "1" or a "0", > + respectively) whether or not this OCC is the "master" OCC. > + > +What: /sys/bus/platform/drivers/occ-hwmon/<dev>/occ_mem_throttle > +Date: November 2017 > +KernelVersion: 4.14 > +Contact: eajames@us.ibm.com > +Description: > + A read-only attribute that indicates (with a "1" or a "0", > + respectively) whether or not the OCC has throttled memory due > + to over-temperature. > + > +What: /sys/bus/platform/drivers/occ-hwmon/<dev>/occs_present > +Date: November 2017 > +KernelVersion: 4.14 > +Contact: eajames@us.ibm.com > +Description: > + A read-only attribute that indicates the number of OCCs present > + on the system. > + > +What: /sys/bus/platform/drivers/occ-hwmon/<dev>/occ_quick_drop > +Date: November 2017 > +KernelVersion: 4.14 > +Contact: eajames@us.ibm.com > +Description: > + A read-only attribute that indicates (with a "1" or a "0", > + respectively) whether or not this OCC has asserted the "quick > + power drop" signal. > + > +What: /sys/bus/platform/drivers/occ-hwmon/<dev>/occ_status > +Date: November 2017 > +KernelVersion: 4.14 > +Contact: eajames@us.ibm.com > +Description: > + A read-only attribute that indicates the current OCC state. The > + value of the attribute will be one of the following states: > + 0: Reserved > + 1: Standby > + 2: Observation > + 3: Active > + 4: Safe > + 5: Characterization -- To unsubscribe from this list: send the line "unsubscribe linux-hwmon" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/Documentation/ABI/testing/sysfs-driver-occ-hwmon b/Documentation/ABI/testing/sysfs-driver-occ-hwmon new file mode 100644 index 0000000..8873cc3 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-driver-occ-hwmon @@ -0,0 +1,85 @@ +What: /sys/bus/platform/drivers/occ-hwmon/<dev>/occ_active +Date: November 2017 +KernelVersion: 4.14 +Contact: eajames@us.ibm.com +Description: + A read-only attribute that indicates (with a "1" or a "0", + respectively) whether or not this OCC is in the "active" state. + +What: /sys/bus/platform/drivers/occ-hwmon/<dev>/occ_dvfs_ot +Date: November 2017 +KernelVersion: 4.14 +Contact: eajames@us.ibm.com +Description: + A read-only attribute that indicates (with a "1" or a "0", + respectively) whether or not this OCC has limited the processor + frequency due to over-temperature. + +What: /sys/bus/platform/drivers/occ-hwmon/<dev>/occ_dvfs_power +Date: November 2017 +KernelVersion: 4.14 +Contact: eajames@us.ibm.com +Description: + A read-only attribute that indicates (with a "1" or a "0", + respectively) whether or not this OCC has limited the processor + frequency due to power usage. + +What: /sys/bus/platform/drivers/occ-hwmon/<dev>/occ_error +Date: November 2017 +KernelVersion: 4.14 +Contact: eajames@us.ibm.com +Description: + A read-only attribute that indicates any error condition + observed by the OCC or detected by the driver. Reading the + attribute will return an integer. A negative integer indicates + either an error response from the OCC or bus error or other + error condition detected by the driver. A "0" indicates no + error. + +What: /sys/bus/platform/drivers/occ-hwmon/<dev>/occ_master +Date: November 2017 +KernelVersion: 4.14 +Contact: eajames@us.ibm.com +Description: + A read-only attribute that indicates (with a "1" or a "0", + respectively) whether or not this OCC is the "master" OCC. + +What: /sys/bus/platform/drivers/occ-hwmon/<dev>/occ_mem_throttle +Date: November 2017 +KernelVersion: 4.14 +Contact: eajames@us.ibm.com +Description: + A read-only attribute that indicates (with a "1" or a "0", + respectively) whether or not the OCC has throttled memory due + to over-temperature. + +What: /sys/bus/platform/drivers/occ-hwmon/<dev>/occs_present +Date: November 2017 +KernelVersion: 4.14 +Contact: eajames@us.ibm.com +Description: + A read-only attribute that indicates the number of OCCs present + on the system. + +What: /sys/bus/platform/drivers/occ-hwmon/<dev>/occ_quick_drop +Date: November 2017 +KernelVersion: 4.14 +Contact: eajames@us.ibm.com +Description: + A read-only attribute that indicates (with a "1" or a "0", + respectively) whether or not this OCC has asserted the "quick + power drop" signal. + +What: /sys/bus/platform/drivers/occ-hwmon/<dev>/occ_status +Date: November 2017 +KernelVersion: 4.14 +Contact: eajames@us.ibm.com +Description: + A read-only attribute that indicates the current OCC state. The + value of the attribute will be one of the following states: + 0: Reserved + 1: Standby + 2: Observation + 3: Active + 4: Safe + 5: Characterization