diff options
| -rw-r--r-- | Documentation/driver-api/thermal/intel_dptf.rst | 9 | ||||
| -rw-r--r-- | drivers/thermal/intel/int340x_thermal/platform_temperature_control.c | 8 |
2 files changed, 16 insertions, 1 deletions
diff --git a/Documentation/driver-api/thermal/intel_dptf.rst b/Documentation/driver-api/thermal/intel_dptf.rst index ec5769accae0..c51ac793dc06 100644 --- a/Documentation/driver-api/thermal/intel_dptf.rst +++ b/Documentation/driver-api/thermal/intel_dptf.rst @@ -206,6 +206,15 @@ All these controls needs admin privilege to update. Update a new temperature target in milli degree celsius for hardware to use for the temperature control. +``thermal_tolerance`` (RW) + This attribute ranges from 0 to 7, where 0 represents + the most aggressive control to avoid any temperature overshoots, and + 7 represents a more graceful approach, favoring performance even at + the expense of temperature overshoots. + Note: This level may not scale linearly. For example, a value of 3 does + not necessarily imply a 50% improvement in performance compared to a + value of 0. + 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 diff --git a/drivers/thermal/intel/int340x_thermal/platform_temperature_control.c b/drivers/thermal/intel/int340x_thermal/platform_temperature_control.c index 2d6504514893..7850e91a6e2c 100644 --- a/drivers/thermal/intel/int340x_thermal/platform_temperature_control.c +++ b/drivers/thermal/intel/int340x_thermal/platform_temperature_control.c @@ -49,7 +49,7 @@ struct mmio_reg { }; #define MAX_ATTR_GROUP_NAME_LEN 32 -#define PTC_MAX_ATTRS 3 +#define PTC_MAX_ATTRS 4 struct ptc_data { u32 offset; @@ -57,6 +57,7 @@ struct ptc_data { struct attribute *ptc_attrs[PTC_MAX_ATTRS]; struct device_attribute temperature_target_attr; struct device_attribute enable_attr; + struct device_attribute thermal_tolerance_attr; char group_name[MAX_ATTR_GROUP_NAME_LEN]; }; @@ -78,6 +79,7 @@ static u32 ptc_offsets[PTC_MAX_INSTANCES] = {0x5B20, 0x5B28, 0x5B30}; static const char * const ptc_strings[] = { "temperature_target", "enable", + "thermal_tolerance", NULL }; @@ -177,6 +179,8 @@ PTC_SHOW(temperature_target); PTC_STORE(temperature_target); PTC_SHOW(enable); PTC_STORE(enable); +PTC_SHOW(thermal_tolerance); +PTC_STORE(thermal_tolerance); #define ptc_init_attribute(_name)\ do {\ @@ -193,9 +197,11 @@ static int ptc_create_groups(struct pci_dev *pdev, int instance, struct ptc_data ptc_init_attribute(temperature_target); ptc_init_attribute(enable); + ptc_init_attribute(thermal_tolerance); data->ptc_attrs[index++] = &data->temperature_target_attr.attr; data->ptc_attrs[index++] = &data->enable_attr.attr; + data->ptc_attrs[index++] = &data->thermal_tolerance_attr.attr; data->ptc_attrs[index] = NULL; snprintf(data->group_name, MAX_ATTR_GROUP_NAME_LEN, |