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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2025-05-19 21:53:36 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2025-05-19 21:53:36 +0300 |
| commit | 2a8aadb108073055c65bb62897e21cfad438400d (patch) | |
| tree | 0f308700abffc05587439d67125705cc6ca93bb6 /Documentation | |
| parent | 3f7cd28ae3d1a1d6f151178469cfaef1b07fdbcc (diff) | |
| parent | fdccdb6578991b2ba770390957ca04c59f9bfff6 (diff) | |
| download | linux-2a8aadb108073055c65bb62897e21cfad438400d.tar.xz | |
Merge branch 'thermal-intel'
Merge an update of the Intel int340x thermal driver adding Platform
Temperature Control (PTC) support to it (Srinivas Pandruvada).
* thermal-intel:
thermal: int340x: processor_thermal: Platform temperature control documentation
thermal: intel: int340x: Enable platform temperature control
thermal: intel: int340x: Add platform temperature control interface
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/driver-api/thermal/intel_dptf.rst | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/Documentation/driver-api/thermal/intel_dptf.rst b/Documentation/driver-api/thermal/intel_dptf.rst index 8fb8c5b2d685..ec5769accae0 100644 --- a/Documentation/driver-api/thermal/intel_dptf.rst +++ b/Documentation/driver-api/thermal/intel_dptf.rst @@ -191,6 +191,27 @@ ABI. User space can specify any one of the available workload type using this interface. +:file:`/sys/bus/pci/devices/0000\:00\:04.0/ptc_0_control` +:file:`/sys/bus/pci/devices/0000\:00\:04.0/ptc_1_control` +:file:`/sys/bus/pci/devices/0000\:00\:04.0/ptc_2_control` + +All these controls needs admin privilege to update. + +``enable`` (RW) + 1 for enable, 0 for disable. Shows the current enable status of + platform temperature control feature. User space can enable/disable + hardware controls. + +``temperature_target`` (RW) + Update a new temperature target in milli degree celsius for hardware to + use for the temperature control. + +Given that this is platform temperature control, it is expected that a +single user-level manager owns and manages the controls. If multiple +user-level software applications attempt to write different targets, it +can lead to unexpected behavior. + + DPTF Processor thermal RFIM interface -------------------------------------------- |