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Diffstat (limited to 'Documentation/ABI/testing/sysfs-class-intel_pmt')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-intel_pmt | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-intel_pmt b/Documentation/ABI/testing/sysfs-class-intel_pmt new file mode 100644 index 000000000000..ed4c886a21b1 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-intel_pmt @@ -0,0 +1,119 @@ +What: /sys/class/intel_pmt/ +Date: October 2020 +KernelVersion: 5.10 +Contact: David Box <david.e.box@linux.intel.com> +Description: + The intel_pmt/ class directory contains information for + devices that expose hardware telemetry using Intel Platform + Monitoring Technology (PMT) + +What: /sys/class/intel_pmt/telem<x> +Date: October 2020 +KernelVersion: 5.10 +Contact: David Box <david.e.box@linux.intel.com> +Description: + The telem<x> directory contains files describing an instance of + a PMT telemetry device that exposes hardware telemetry. Each + telem<x> directory has an associated telem file. This file + may be opened and mapped or read to access the telemetry space + of the device. The register layout of the telemetry space is + determined from an XML file that matches the PCI device id and + GUID for the device. + +What: /sys/class/intel_pmt/telem<x>/telem +Date: October 2020 +KernelVersion: 5.10 +Contact: David Box <david.e.box@linux.intel.com> +Description: + (RO) The telemetry data for this telemetry device. This file + may be mapped or read to obtain the data. + +What: /sys/class/intel_pmt/telem<x>/guid +Date: October 2020 +KernelVersion: 5.10 +Contact: David Box <david.e.box@linux.intel.com> +Description: + (RO) The GUID for this telemetry device. The GUID identifies + the version of the XML file for the parent device that is to + be used to get the register layout. + +What: /sys/class/intel_pmt/telem<x>/size +Date: October 2020 +KernelVersion: 5.10 +Contact: David Box <david.e.box@linux.intel.com> +Description: + (RO) The size of telemetry region in bytes that corresponds to + the mapping size for the telem file. + +What: /sys/class/intel_pmt/telem<x>/offset +Date: October 2020 +KernelVersion: 5.10 +Contact: David Box <david.e.box@linux.intel.com> +Description: + (RO) The offset of telemetry region in bytes that corresponds to + the mapping for the telem file. + +What: /sys/class/intel_pmt/crashlog<x> +Date: October 2020 +KernelVersion: 5.10 +Contact: Alexander Duyck <alexander.h.duyck@linux.intel.com> +Description: + The crashlog<x> directory contains files for configuring an + instance of a PMT crashlog device that can perform crash data + recording. Each crashlog<x> device has an associated crashlog + file. This file can be opened and mapped or read to access the + resulting crashlog buffer. The register layout for the buffer + can be determined from an XML file of specified GUID for the + parent device. + +What: /sys/class/intel_pmt/crashlog<x>/crashlog +Date: October 2020 +KernelVersion: 5.10 +Contact: David Box <david.e.box@linux.intel.com> +Description: + (RO) The crashlog buffer for this crashlog device. This file + may be mapped or read to obtain the data. + +What: /sys/class/intel_pmt/crashlog<x>/guid +Date: October 2020 +KernelVersion: 5.10 +Contact: Alexander Duyck <alexander.h.duyck@linux.intel.com> +Description: + (RO) The GUID for this crashlog device. The GUID identifies the + version of the XML file for the parent device that should be + used to determine the register layout. + +What: /sys/class/intel_pmt/crashlog<x>/size +Date: October 2020 +KernelVersion: 5.10 +Contact: Alexander Duyck <alexander.h.duyck@linux.intel.com> +Description: + (RO) The length of the result buffer in bytes that corresponds + to the size for the crashlog buffer. + +What: /sys/class/intel_pmt/crashlog<x>/offset +Date: October 2020 +KernelVersion: 5.10 +Contact: Alexander Duyck <alexander.h.duyck@linux.intel.com> +Description: + (RO) The offset of the buffer in bytes that corresponds + to the mapping for the crashlog device. + +What: /sys/class/intel_pmt/crashlog<x>/enable +Date: October 2020 +KernelVersion: 5.10 +Contact: Alexander Duyck <alexander.h.duyck@linux.intel.com> +Description: + (RW) Boolean value controlling if the crashlog functionality + is enabled for the crashlog device. + +What: /sys/class/intel_pmt/crashlog<x>/trigger +Date: October 2020 +KernelVersion: 5.10 +Contact: Alexander Duyck <alexander.h.duyck@linux.intel.com> +Description: + (RW) Boolean value controlling the triggering of the crashlog + device node. When read it provides data on if the crashlog has + been triggered. When written to it can be used to either clear + the current trigger by writing false, or to trigger a new + event if the trigger is not currently set. |