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/linux/Documentation/devicetree/bindings/thermal/
H A Dthermal-idle.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
4 ---
5 $id: http://devicetree.org/schemas/thermal/thermal-idle.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
8 title: Thermal idle cooling device
11 - Daniel Lezcano <daniel.lezcano@linaro.org>
14 The thermal idle cooling device allows the system to passively
15 mitigate the temperature on the device by injecting idle cycles,
18 This binding describes the thermal idle node.
22 const: thermal-idle
[all …]
H A Dthermal-cooling-devices.yaml1 # SPDX-License-Identifier: (GPL-2.0)
4 ---
5 $id: http://devicetree.org/schemas/thermal/thermal-cooling-devices.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
8 title: Thermal cooling device
11 - Amit Kucheria <amitk@kernel.org>
14 Thermal management is achieved in devicetree by describing the sensor hardware
15 and the software abstraction of cooling devices and thermal zones required to
16 take appropriate action to mitigate thermal overload.
18 The following node types are used to completely describe a thermal management
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/linux/drivers/thermal/
H A Dcpuidle_cooling.c1 // SPDX-License-Identifier: GPL-2.0
18 #include <linux/thermal.h>
21 * struct cpuidle_cooling_device - data for the idle cooling device
22 * @ii_dev: an atomic to keep track of the last task exiting the idle cycle
31 * cpuidle_cooling_runtime - Running time computation
32 * @idle_duration_us: CPU idle time to inject in microseconds
35 * The running duration is computed from the idle injection duration
36 * which is fixed. If we reach 100% of idle injection ratio, that
38 * injection, that means we have equal duration for idle and for
43 * running = idle x ((100 / ratio) - 1)
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H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
3 # Generic thermal drivers configuration
6 menuconfig THERMAL config
7 bool "Thermal drivers"
9 Thermal drivers offer a generic mechanism for
10 thermal management. Usually it's made up of one or more thermal
12 Each thermal zone contains its own temperature, trip points,
14 All platforms with ACPI or Open Firmware thermal support can use
18 if THERMAL
21 bool "Thermal netlink management"
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H A Dcpufreq_cooling.c1 // SPDX-License-Identifier: GPL-2.0
3 * linux/drivers/thermal/cpufreq_cooling.c
7 * Copyright (C) 2012-2018 Linaro Limited.
23 #include <linux/thermal.h>
29 * Cooling state <-> CPUFreq frequency
37 * level 0 --> 1st Max Freq
38 * level 1 --> 2nd Max Freq
43 * struct time_in_idle - Idle time stats
44 * @time: previous reading of the absolute time that this cpu was idle
53 * struct cpufreq_cooling_device - data for cooling device with cpufreq
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/linux/Documentation/admin-guide/thermal/
H A Dintel_powerclamp.rst6 - Arjan van de Ven <arjan@linux.intel.com>
7 - Jacob Pan <jacob.jun.pan@linux.intel.com>
12 - Goals and Objectives
15 - Idle Injection
16 - Calibration
19 - Effectiveness and Limitations
20 - Power vs Performance
21 - Scalability
22 - Calibration
23 - Comparison with Alternative Techniques
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/linux/Documentation/driver-api/thermal/
H A Dcpu-idle-cooling.rst1 .. SPDX-License-Identifier: GPL-2.0
4 CPU Idle Cooling
8 ----------
26 budget lower than the requested one and under-utilize the CPU, thus
27 losing performance. In other words, one OPP under-utilizes the CPU
33 ----------
37 decrease. Acting on the idle state duration or the idle cycle
44 that will result in loss of performance during thermal control and
47 At a specific OPP, we can assume that injecting idle cycle on all CPUs
49 idle state target residency, we lead to dropping the static and the
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H A Dintel_dptf.rst1 .. SPDX-License-Identifier: GPL-2.0
4 Intel(R) Dynamic Platform and Thermal Framework Sysfs Interface
12 ------------
14 Intel(R) Dynamic Platform and Thermal Framework (DPTF) is a platform
15 level hardware/software solution for power and thermal management.
17 As a container for multiple power/thermal technologies, DPTF provides
25 to user space. This allows user space thermal solutions like
26 "Linux Thermal Daemon" to read platform specific thermal and power
28 thermal limits.
31 ----------------------------
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H A Dcpu-cooling-api.rst22 --------------------------------------------
30 "thermal-cpufreq-%x". This api can support multiple instances of cpufreq
42 the name "thermal-cpufreq-%x" linking it with a device tree node, in
43 order to bind it via the thermal DT code. This api can support multiple
54 This interface function unregisters the "thermal-cpufreq-%x" cooling device.
63 supported currently). This power model requires that the operating-points of
73 - The time the processor spends running, consuming dynamic power, as
74 compared to the time in idle states where dynamic consumption is
76 - The voltage and frequency levels as a result of DVFS. The DVFS
78 - In running time the 'execution' behaviour (instruction types, memory
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H A Dindex.rst1 .. SPDX-License-Identifier: GPL-2.0
4 Thermal title
10 cpu-cooling-api
11 cpu-idle-cooling
12 sysfs-api
/linux/arch/arm64/boot/dts/qcom/
H A Dmsm8976.dtsi1 // SPDX-License-Identifier: BSD-3-Clause
3 * Copyright (c) 2016-2022, AngeloGioacchino Del Regno
9 #include <dt-bindings/clock/qcom,dsi-phy-28nm.h>
10 #include <dt-bindings/clock/qcom,gcc-msm8976.h>
11 #include <dt-bindings/clock/qcom,rpmcc.h>
12 #include <dt-bindings/gpio/gpio.h>
13 #include <dt-bindings/interrupt-controller/arm-gic.h>
14 #include <dt-bindings/interrupt-controller/irq.h>
15 #include <dt-bindings/power/qcom-rpmpd.h>
18 interrupt-parent = <&intc>;
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H A Dsdm630.dtsi1 // SPDX-License-Identifier: BSD-3-Clause
7 #include <dt-bindings/clock/qcom,dsi-phy-28nm.h>
8 #include <dt-bindings/clock/qcom,gcc-sdm660.h>
9 #include <dt-bindings/clock/qcom,gpucc-sdm660.h>
10 #include <dt-bindings/clock/qcom,mmcc-sdm660.h>
11 #include <dt-bindings/clock/qcom,rpmcc.h>
12 #include <dt-bindings/firmware/qcom,scm.h>
13 #include <dt-bindings/interconnect/qcom,sdm660.h>
14 #include <dt-bindings/power/qcom-rpmpd.h>
15 #include <dt-bindings/gpio/gpio.h>
[all …]
H A Dsm6115.dtsi1 // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
6 #include <dt-bindings/clock/qcom,dsi-phy-28nm.h>
7 #include <dt-bindings/clock/qcom,gcc-sm6115.h>
8 #include <dt-bindings/clock/qcom,sm6115-dispcc.h>
9 #include <dt-bindings/clock/qcom,sm6115-gpucc.h>
10 #include <dt-bindings/clock/qcom,rpmcc.h>
11 #include <dt-bindings/dma/qcom-gpi.h>
12 #include <dt-bindings/firmware/qcom,scm.h>
13 #include <dt-bindings/gpio/gpio.h>
14 #include <dt-bindings/interconnect/qcom,rpm-icc.h>
[all …]
H A Dmsm8917.dtsi1 // SPDX-License-Identifier: GPL-2.0-only
3 #include <dt-bindings/clock/qcom,dsi-phy-28nm.h>
4 #include <dt-bindings/clock/qcom,gcc-msm8917.h>
5 #include <dt-bindings/clock/qcom,rpmcc.h>
6 #include <dt-bindings/interrupt-controller/arm-gic.h>
7 #include <dt-bindings/power/qcom-rpmpd.h>
8 #include <dt-bindings/thermal/thermal.h>
11 interrupt-parent = <&intc>;
13 #address-cells = <2>;
14 #size-cells = <2>;
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/linux/arch/arm/boot/dts/qcom/
H A Dqcom-apq8084.dtsi1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
4 #include <dt-bindings/interrupt-controller/arm-gic.h>
5 #include <dt-bindings/clock/qcom,gcc-apq8084.h>
6 #include <dt-bindings/gpio/gpio.h>
9 #address-cells = <1>;
10 #size-cells = <1>;
13 interrupt-parent = <&intc>;
15 reserved-memory {
16 #address-cells = <1>;
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H A Dqcom-msm8974.dtsi1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
4 #include <dt-bindings/interconnect/qcom,msm8974.h>
5 #include <dt-bindings/interrupt-controller/arm-gic.h>
6 #include <dt-bindings/clock/qcom,dsi-phy-28nm.h>
7 #include <dt-bindings/clock/qcom,gcc-msm8974.h>
8 #include <dt-bindings/clock/qcom,mmcc-msm8974.h>
9 #include <dt-bindings/clock/qcom,rpmcc.h>
10 #include <dt-bindings/reset/qcom,gcc-msm8974.h>
11 #include <dt-bindings/gpio/gpio.h>
[all …]
/linux/arch/arm64/boot/dts/mediatek/
H A Dmt8192.dtsi1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
7 /dts-v1/;
8 #include <dt-bindings/clock/mt8192-clk.h>
9 #include <dt-bindings/gce/mt8192-gce.h>
10 #include <dt-bindings/interrupt-controller/arm-gic.h>
11 #include <dt-bindings/interrupt-controller/irq.h>
12 #include <dt-bindings/memory/mt8192-larb-port.h>
13 #include <dt-bindings/pinctrl/mt8192-pinfunc.h>
14 #include <dt-bindings/phy/phy.h>
15 #include <dt-bindings/power/mt8192-power.h>
[all …]
/linux/tools/power/x86/turbostat/
H A Dturbostat.83 turbostat \- Report processor frequency and idle statistics
12 .RB [ "\--interval seconds" ]
15 idle power-state statistics, temperature and power on X86 processors.
19 in one-shot upon its completion.
22 The 5-second interval can be changed using the --interval option.
26 Options can be specified with a single or double '-', and only as much of the option
27 name as necessary to disambiguate it from others is necessary. Note that options are case-sensitiv…
29 \fB--add attributes\fP add column with counter having specified 'attributes'. The 'location' attri…
39 … event for given device from /sys/bus/event_source/devices/<device>/events/<event> eg. c1-residency
40 …perf/cstate_core/c1-residency would then use /sys/bus/event_source/devices/cstate_core/events/c1-r…
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/linux/drivers/thermal/renesas/
H A Drcar_thermal.c1 // SPDX-License-Identifier: GPL-2.0
3 * R-Car THS/TSC thermal sensor driver
20 #include <linux/thermal.h>
101 list_for_each_entry(pos, &common->head, list)
104 #define rcar_priv_to_dev(priv) ((priv)->common->dev)
105 #define rcar_has_irq_support(priv) ((priv)->common->base)
106 #define rcar_id_to_shift(priv) ((priv)->id * 8)
110 .compatible = "renesas,rcar-thermal",
114 .compatible = "renesas,rcar-gen2-thermal",
118 .compatible = "renesas,thermal-r8a774c0",
[all …]
/linux/tools/thermal/tmon/
H A Dtmon.82 # SPDX-License-Identifier: GPL-2.0
4 \fBtmon\fP - A monitoring and testing tool for Linux kernel thermal subsystem
12 \fBtmon \fP can be used to visualize thermal relationship and
13 real-time thermal data; tune
14 and test cooling devices and sensors; collect thermal data for offline
21 1. Thermal relationships:
22 - show thermal zone information
23 - show cooling device information
24 - show trip point binding within each thermal zone
25 - show trip point and cooling device instance bindings
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/linux/arch/arm64/boot/dts/freescale/
H A Dfsl-lx2160a.dtsi1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
3 // Device Tree Include file for Layerscape-LX2160A family SoC.
5 // Copyright 2018-2020 NXP
7 #include <dt-bindings/clock/fsl,qoriq-clockgen.h>
8 #include <dt-bindings/gpio/gpio.h>
9 #include <dt-bindings/interrupt-controller/arm-gic.h>
10 #include <dt-bindings/thermal/thermal.h>
16 interrupt-parent = <&gic>;
17 #address-cells = <2>;
18 #size-cells = <2>;
[all …]
H A Dfsl-ls1088a.dtsi1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
3 * Device Tree Include file for NXP Layerscape-1088A family SoC.
5 * Copyright 2017-2020 NXP
10 #include <dt-bindings/clock/fsl,qoriq-clockgen.h>
11 #include <dt-bindings/interrupt-controller/arm-gic.h>
12 #include <dt-bindings/thermal/thermal.h>
16 interrupt-parent = <&gic>;
17 #address-cells = <2>;
18 #size-cells = <2>;
26 #address-cells = <1>;
[all …]
/linux/tools/
H A DMakefile1 # SPDX-License-Identifier: GPL-2.0
12 @echo ' acpi - ACPI tools'
13 @echo ' bpf - misc BPF tools'
14 @echo ' counter - counter tools'
15 @echo ' cpupower - a tool for all things x86 CPU power'
16 @echo ' debugging - tools for debugging'
17 @echo ' firewire - the userspace part of nosy, an IEEE-139
101 thermal: FORCE global() target
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/linux/arch/arm64/boot/dts/renesas/
H A Dr8a779f0.dtsi1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
3 * Device Tree Source for the R-Car S4-8 (R8A779F0) SoC
8 #include <dt-bindings/clock/r8a779f0-cpg-mssr.h>
9 #include <dt-bindings/interrupt-controller/arm-gic.h>
10 #include <dt-bindings/power/r8a779f0-sysc.h>
14 #address-cells = <2>;
15 #size-cells = <2>;
17 cluster01_opp: opp-table-0 {
18 compatible = "operating-points-v2";
19 opp-shared;
[all …]
/linux/arch/arm64/boot/dts/hisilicon/
H A Dhi3660.dtsi1 // SPDX-License-Identifier: GPL-2.0
8 #include <dt-bindings/interrupt-controller/arm-gic.h>
9 #include <dt-bindings/clock/hi3660-clock.h>
10 #include <dt-bindings/thermal/thermal.h>
14 interrupt-parent = <&gic>;
15 #address-cells = <2>;
16 #size-cells = <2>;
19 compatible = "arm,psci-0.2";
24 #address-cells = <2>;
25 #size-cells = <0>;
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