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e4b1eb24ce
Add a new netlink event to notify change in CPU capabilities in terms of performance and efficiency. Firmware may change CPU capabilities as a result of thermal events in the system or to account for changes in the TDP (thermal design power) level. This notification type will allow user space to avoid running workloads on certain CPUs or proactively adjust power limits to avoid future events. The netlink message consists of a nested attribute (THERMAL_GENL_ATTR_CPU_CAPABILITY) with three attributes: * THERMAL_GENL_ATTR_CPU_CAPABILITY_ID (type u32): -- logical CPU number * THERMAL_GENL_ATTR_CPU_CAPABILITY_PERFORMANCE (type u32): -- Scaled performance from 0-1023 * THERMAL_GENL_ATTR_CPU_CAPABILITY_EFFICIENCY (type u32): -- Scaled efficiency from 0-1023 Reviewed-by: Len Brown <len.brown@intel.com> Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
95 lines
3.2 KiB
C
95 lines
3.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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#ifndef _UAPI_LINUX_THERMAL_H
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#define _UAPI_LINUX_THERMAL_H
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#define THERMAL_NAME_LENGTH 20
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enum thermal_device_mode {
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THERMAL_DEVICE_DISABLED = 0,
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THERMAL_DEVICE_ENABLED,
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};
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enum thermal_trip_type {
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THERMAL_TRIP_ACTIVE = 0,
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THERMAL_TRIP_PASSIVE,
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THERMAL_TRIP_HOT,
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THERMAL_TRIP_CRITICAL,
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};
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/* Adding event notification support elements */
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#define THERMAL_GENL_FAMILY_NAME "thermal"
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#define THERMAL_GENL_VERSION 0x01
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#define THERMAL_GENL_SAMPLING_GROUP_NAME "sampling"
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#define THERMAL_GENL_EVENT_GROUP_NAME "event"
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/* Attributes of thermal_genl_family */
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enum thermal_genl_attr {
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THERMAL_GENL_ATTR_UNSPEC,
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THERMAL_GENL_ATTR_TZ,
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THERMAL_GENL_ATTR_TZ_ID,
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THERMAL_GENL_ATTR_TZ_TEMP,
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THERMAL_GENL_ATTR_TZ_TRIP,
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THERMAL_GENL_ATTR_TZ_TRIP_ID,
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THERMAL_GENL_ATTR_TZ_TRIP_TYPE,
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THERMAL_GENL_ATTR_TZ_TRIP_TEMP,
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THERMAL_GENL_ATTR_TZ_TRIP_HYST,
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THERMAL_GENL_ATTR_TZ_MODE,
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THERMAL_GENL_ATTR_TZ_NAME,
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THERMAL_GENL_ATTR_TZ_CDEV_WEIGHT,
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THERMAL_GENL_ATTR_TZ_GOV,
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THERMAL_GENL_ATTR_TZ_GOV_NAME,
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THERMAL_GENL_ATTR_CDEV,
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THERMAL_GENL_ATTR_CDEV_ID,
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THERMAL_GENL_ATTR_CDEV_CUR_STATE,
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THERMAL_GENL_ATTR_CDEV_MAX_STATE,
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THERMAL_GENL_ATTR_CDEV_NAME,
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THERMAL_GENL_ATTR_GOV_NAME,
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THERMAL_GENL_ATTR_CPU_CAPABILITY,
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THERMAL_GENL_ATTR_CPU_CAPABILITY_ID,
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THERMAL_GENL_ATTR_CPU_CAPABILITY_PERFORMANCE,
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THERMAL_GENL_ATTR_CPU_CAPABILITY_EFFICIENCY,
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__THERMAL_GENL_ATTR_MAX,
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};
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#define THERMAL_GENL_ATTR_MAX (__THERMAL_GENL_ATTR_MAX - 1)
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enum thermal_genl_sampling {
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THERMAL_GENL_SAMPLING_TEMP,
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__THERMAL_GENL_SAMPLING_MAX,
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};
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#define THERMAL_GENL_SAMPLING_MAX (__THERMAL_GENL_SAMPLING_MAX - 1)
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/* Events of thermal_genl_family */
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enum thermal_genl_event {
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THERMAL_GENL_EVENT_UNSPEC,
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THERMAL_GENL_EVENT_TZ_CREATE, /* Thermal zone creation */
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THERMAL_GENL_EVENT_TZ_DELETE, /* Thermal zone deletion */
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THERMAL_GENL_EVENT_TZ_DISABLE, /* Thermal zone disabled */
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THERMAL_GENL_EVENT_TZ_ENABLE, /* Thermal zone enabled */
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THERMAL_GENL_EVENT_TZ_TRIP_UP, /* Trip point crossed the way up */
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THERMAL_GENL_EVENT_TZ_TRIP_DOWN, /* Trip point crossed the way down */
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THERMAL_GENL_EVENT_TZ_TRIP_CHANGE, /* Trip point changed */
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THERMAL_GENL_EVENT_TZ_TRIP_ADD, /* Trip point added */
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THERMAL_GENL_EVENT_TZ_TRIP_DELETE, /* Trip point deleted */
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THERMAL_GENL_EVENT_CDEV_ADD, /* Cdev bound to the thermal zone */
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THERMAL_GENL_EVENT_CDEV_DELETE, /* Cdev unbound */
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THERMAL_GENL_EVENT_CDEV_STATE_UPDATE, /* Cdev state updated */
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THERMAL_GENL_EVENT_TZ_GOV_CHANGE, /* Governor policy changed */
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THERMAL_GENL_EVENT_CPU_CAPABILITY_CHANGE, /* CPU capability changed */
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__THERMAL_GENL_EVENT_MAX,
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};
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#define THERMAL_GENL_EVENT_MAX (__THERMAL_GENL_EVENT_MAX - 1)
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/* Commands supported by the thermal_genl_family */
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enum thermal_genl_cmd {
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THERMAL_GENL_CMD_UNSPEC,
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THERMAL_GENL_CMD_TZ_GET_ID, /* List of thermal zones id */
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THERMAL_GENL_CMD_TZ_GET_TRIP, /* List of thermal trips */
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THERMAL_GENL_CMD_TZ_GET_TEMP, /* Get the thermal zone temperature */
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THERMAL_GENL_CMD_TZ_GET_GOV, /* Get the thermal zone governor */
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THERMAL_GENL_CMD_TZ_GET_MODE, /* Get the thermal zone mode */
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THERMAL_GENL_CMD_CDEV_GET, /* List of cdev id */
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__THERMAL_GENL_CMD_MAX,
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};
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#define THERMAL_GENL_CMD_MAX (__THERMAL_GENL_CMD_MAX - 1)
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#endif /* _UAPI_LINUX_THERMAL_H */
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