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# SPDX-License-Identifier: GPL-2.0-only
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config INTEL_POWERCLAMP
tristate "Intel PowerClamp idle injection driver"
depends on X86
depends on CPU_SUP_INTEL
help
Enable this to enable Intel PowerClamp idle injection driver. This
enforce idle time which results in more package C-state residency. The
user interface is exposed via generic thermal framework.
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config X86_THERMAL_VECTOR
def_bool y
depends on X86 && CPU_SUP_INTEL && X86_LOCAL_APIC
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config INTEL_TCC
bool
depends on X86
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config X86_PKG_TEMP_THERMAL
tristate "X86 package temperature thermal driver"
depends on X86_THERMAL_VECTOR
select THERMAL_GOV_USER_SPACE
select THERMAL_WRITABLE_TRIPS
default m
help
Enable this to register CPU digital sensor for package temperature as
thermal zone. Each package will have its own thermal zone. There are
two trip points which can be set by user to get notifications via thermal
notification methods.
config INTEL_SOC_DTS_IOSF_CORE
tristate
depends on X86 && PCI
select IOSF_MBI
help
This is becoming a common feature for Intel SoCs to expose the additional
digital temperature sensors (DTSs) using side band interface (IOSF). This
implements the common set of helper functions to register, get temperature
and get/set thresholds on DTSs.
config INTEL_SOC_DTS_THERMAL
tristate "Intel SoCs DTS thermal driver"
depends on X86 && PCI && ACPI
select INTEL_SOC_DTS_IOSF_CORE
select THERMAL_WRITABLE_TRIPS
help
Enable this to register Intel SoCs (e.g. Bay Trail) platform digital
temperature sensor (DTS). These SoCs have two additional DTSs in
addition to DTSs on CPU cores. Each DTS will be registered as a
thermal zone. There are two trip points. One of the trip point can
be set by user mode programs to get notifications via Linux thermal
notification methods.The other trip is a critical trip point, which
was set by the driver based on the TJ MAX temperature.
config INTEL_QUARK_DTS_THERMAL
tristate "Intel Quark DTS thermal driver"
depends on X86_INTEL_QUARK
help
Enable this to register Intel Quark SoC (e.g. X1000) platform digital
temperature sensor (DTS). For X1000 SoC, it has one on-die DTS.
The DTS will be registered as a thermal zone. There are two trip points:
hot & critical. The critical trip point default value is set by
underlying BIOS/Firmware.
menu "ACPI INT340X thermal drivers"
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source "drivers/thermal/intel/int340x_thermal/Kconfig"
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endmenu
config INTEL_BXT_PMIC_THERMAL
tristate "Intel Broxton PMIC thermal driver"
depends on X86 && INTEL_SOC_PMIC_BXTWC && REGMAP
help
Select this driver for Intel Broxton PMIC with ADC channels monitoring
system temperature measurements and alerts.
This driver is used for monitoring the ADC channels of PMIC and handles
the alert trip point interrupts and notifies the thermal framework with
the trip point and temperature details of the zone.
config INTEL_PCH_THERMAL
tristate "Intel PCH Thermal Reporting Driver"
depends on X86 && PCI
help
Enable this to support thermal reporting on certain intel PCHs.
Thermal reporting device will provide temperature reading,
programmable trip points and other information.
thermal/drivers/intel: Introduce tcc cooling driver
On Intel processors, the core frequency can be reduced below OS request,
when the current temperature reaches the TCC (Thermal Control Circuit)
activation temperature.
The default TCC activation temperature is specified by
MSR_IA32_TEMPERATURE_TARGET. However, it can be adjusted by specifying an
offset in degrees C, using the TCC Offset bits in the same MSR register.
This patch introduces a cooling devices driver that utilizes the TCC
Offset feature. The bigger the current cooling state is, the lower the
effective TCC activation temperature is, so that the processors can be
throttled earlier before system critical overheats.
Note that, on different platforms, the behavior might be different on
how fast the setting takes effect, and how much the CPU frequency is
reduced.
This patch has been tested on a KabyLake mobile platform from me, and also
on a CometLake platform from Doug.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Tested by: Doug Smythies <dsmythies@telus.net>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20210412125901.12549-1-rui.zhang@intel.com
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config INTEL_TCC_COOLING
tristate "Intel TCC offset cooling Driver"
depends on X86
help
Enable this to support system cooling by adjusting the effective TCC
activation temperature via the TCC Offset register, which is widely
supported on modern Intel platforms.
Note that, on different platforms, the behavior might be different
on how fast the setting takes effect, and how much the CPU frequency
is reduced.
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config INTEL_MENLOW
tristate "Thermal Management driver for Intel menlow platform"
depends on ACPI_THERMAL
help
ACPI thermal management enhancement driver on
Intel Menlow platform.
If unsure, say N.
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config INTEL_HFI_THERMAL
bool "Intel Hardware Feedback Interface"
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depends on NET
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depends on CPU_SUP_INTEL
depends on X86_THERMAL_VECTOR
thermal: intel: hfi: Notify user space for HFI events
When the hardware issues an HFI event, relay a notification to user space.
This allows user space to respond by reading performance and efficiency of
each CPU and take appropriate action.
For example, when the performance and efficiency of a CPU is 0, user space
can either offline the CPU or inject idle. Also, if user space notices a
downward trend in performance, it may proactively adjust power limits to
avoid future situations in which performance drops to 0.
To avoid excessive notifications, the rate is limited by one HZ per event.
To limit the netlink message size, send parameters for up to 16 CPUs in a
single message. If there are more than 16 CPUs, issue as many messages as
needed to notify the status of all CPUs.
In the HFI specification, both performance and efficiency capabilities are
defined in the [0, 255] range. The existing implementations of HFI hardware
do not scale the maximum values to 255. Since userspace cares about
capability values that are either 0 or show a downward/upward trend, this
fact does not matter much. Relative changes in capabilities are enough. To
comply with the thermal netlink ABI, scale both performance and efficiency
capabilities to the [0, 1023] interval.
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>
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select THERMAL_NETLINK
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help
Select this option to enable the Hardware Feedback Interface. If
selected, hardware provides guidance to the operating system on
the performance and energy efficiency capabilities of each CPU.
These capabilities may change as a result of changes in the operating
conditions of the system such power and thermal limits. If selected,
the kernel relays updates in CPUs' capabilities to userspace.