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/linux/tools/power/cpupower/man/
H A Dcpupower-monitor.11 .TH CPUPOWER\-MONITOR "1" "22/02/2011" "" "cpupower Manual"
3 cpupower\-monitor \- Report processor frequency and idle statistics
6 .B cpupower monitor
7 .RB "\-l"
9 .B cpupower monitor
10 .RB [ -c ] [ "\-m <mon1>," [ "<mon2>,..." ] ]
11 .RB [ "\-i seconds" ]
13 .B cpupower monitor
14 .RB [ -c ][ "\-m <mon1>," [ "<mon2>,..." ] ]
18 \fBcpupower-monitor \fP reports processor topology, frequency and idle power
[all …]
H A Dcpupower-idle-info.11 .TH "CPUPOWER-IDLE-INFO" "1" "0.1" "" "cpupower Manual"
4 cpupower\-idle\-info \- Utility to retrieve cpu idle kernel information
7 cpupower [ \-c cpulist ] idle\-info [\fIoptions\fP]
14 \fB\-f\fR \fB\-\-silent\fR
15 Only print a summary of all available C-states in the system.
17 \fB\-e\fR \fB\-\-proc\fR
19 Prints out idle information in old /proc/acpi/processor/*/power format. This
23 .SH IDLE\-INFO DESCRIPTIONS
37 which monitor the duration of sleep states the processor resided in. The
38 cpupower monitor tool (cpupower\-monitor(1)) can be used to show real sleep
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/linux/Documentation/hwmon/
H A Ducd9000.rst11 Addresses scanned: -
15 - http://focus.ti.com/lit/ds/symlink/ucd90120.pdf
16 - http://focus.ti.com/lit/ds/symlink/ucd90124.pdf
17 - http://focus.ti.com/lit/ds/symlink/ucd90160.pdf
18 - http://focus.ti.com/lit/ds/symlink/ucd90320.pdf
19 - http://focus.ti.com/lit/ds/symlink/ucd9090.pdf
20 - http://focus.ti.com/lit/ds/symlink/ucd90910.pdf
22 Author: Guenter Roeck <linux@roeck-us.net>
26 -----------
30 The UCD90120 Power Supply Sequencer and System Health Monitor monitors and
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H A Dina2xx.rst10 Addresses: I2C 0x40 - 0x4f
20 Addresses: I2C 0x40 - 0x4f
30 Addresses: I2C 0x40 - 0x4f
40 Addresses: I2C 0x40 - 0x4f
50 Addresses: I2C 0x40 - 0x4f
60 Addresses: I2C 0x40 - 0x4f
70 Addresses: I2C 0x40 - 0x4f
80 -----------
82 The INA219 is a high-side current shunt and power monitor with an I2C
86 The INA220 is a high or low side current shunt and power monitor with an I2C
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H A Dltc2992.rst1 .. SPDX-License-Identifier: GPL-2.0
9 Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/ltc2992.pdf
15 -----------
17 This driver supports hardware monitoring for Linear Technology LTC2992 power monitor.
19 LTC2992 is a rail-to-rail system monitor that measures current,
20 voltage, and power of two supplies.
27 -------------
29 The following attributes are supported. Limits are read-write,
30 all other attributes are read-only.
50 powerX_input Measured power.
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H A Dlochnagar.rst10 -----------
12 Lochnagar 2 features built-in Current Monitor circuitry that allows for the
14 rails provided to the minicards. The Current Monitor does not require any
22 ----------------
30 power1_average Measured average power for DBVDD1 (microWatts)
31 power1_average_interval Power averaging time input valid from 1 to 1708mS
37 power2_average Measured average power for 1V8 DSP (microWatts)
38 power2_average_interval Power averaging time input valid from 1 to 1708mS
44 power3_average Measured average power for 1V8 CDC (microWatts)
45 power3_average_interval Power averaging time input valid from 1 to 1708mS
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H A Dadm1025.rst10 Addresses scanned: I2C 0x2c - 0x2e
18 Addresses scanned: I2C 0x2c - 0x2d
24 * Only two possible addresses (0x2c - 0x2d).
29 - Chen-Yuan Wu <gwu@esoft.com>,
30 - Jean Delvare <jdelvare@suse.de>
33 -----------
36 monitor for microprocessor-based systems, providing measurement and limit
38 are provided, for monitoring +2.5V, +3.3V, +5V and +12V power supplies and
39 the processor core voltage. The ADM1025 can monitor a sixth power-supply
41 remote temperature-sensing diode and an on-chip temperature sensor allows
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/linux/Documentation/devicetree/bindings/iio/addac/
H A Dadi,ad74115.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Cosmin Tanislav <cosmin.tanislav@analog.com>
13 The AD74115H is a single-channel software configurable input/output
17 chip solution with an SPI interface. The device features a 16-bit ADC and a
18 14-bit DAC.
25 - adi,ad74115h
30 spi-max-frequency:
33 spi-cpol: true
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/linux/drivers/firmware/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
4 # see Documentation/kbuild/kconfig-language.rst.
12 tristate "ARM System Control and Power Interface (SCPI) Message Protocol"
16 System Control and Power Interface (SCPI) Message Protocol is
19 provides a mechanism for inter-processor communication between SCP
22 SCP controls most of the power management on the Application
24 power states, various power domain DVFS including the core/cluster,
61 bool "Add firmware-provided memory map to sysfs" if EXPERT
64 Add the firmware-provided (unmodified) memory map to /sys/firmware/memmap.
68 See also Documentation/ABI/testing/sysfs-firmware-memmap.
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/linux/Documentation/devicetree/bindings/hwmon/
H A Dadi,ltc2945.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Analog Devices LTC2945 wide range i2c power monitor
10 - Guenter Roeck <linux@roeck-us.net>
13 Analog Devices LTC2945 wide range i2c power monitor over I2C.
15 https://www.analog.com/media/en/technical-documentation/data-sheets/LTC2945.pdf
20 - adi,ltc2945
25 shunt-resistor-micro-ohms:
27 Shunt resistor value in micro-Ohms
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H A Dadi,adm1177.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Analog Devices ADM1177 Hot Swap Controller and Digital Power Monitor
10 - Michael Hennerich <michael.hennerich@analog.com>
13 Analog Devices ADM1177 Hot Swap Controller and Digital Power Monitor
14 https://www.analog.com/media/en/technical-documentation/data-sheets/ADM1177.pdf
19 - adi,adm1177
24 avcc-supply:
26 Phandle to the Avcc power supply
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H A Dti,ina3221.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Texas Instruments INA3221 Current and Voltage Monitor
10 - Jean Delvare <jdelvare@suse.com>
11 - Guenter Roeck <linux@roeck-us.net>
20 ti,single-shot:
22 This chip has two power modes: single-shot (chip takes one measurement
25 hardware monitor type device, but the single-shot mode is more power-
26 friendly and useful for battery-powered device which cares power
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/linux/drivers/sbus/char/
H A Denvctrl.c1 // SPDX-License-Identifier: GPL-2.0-only
6 * VT - The implementation is to support Sun Microelectronics (SME) platform
8 * controller to access pcf8591 (8-bit A/D and D/A converter) and
9 * pcf8571 (256 x 8-bit static low-voltage RAM with I2C-bus interface).
11 * http://www-eu2.semiconductors.com/pip/PCF8584P
12 * http://www-eu2.semiconductors.com/pip/PCF8574AP
13 * http://www-eu2.semiconductors.com/pip/PCF8591P
15 * EB - Added support for CP1500 Global Address and PS/Voltage monitoring.
18 * DB - Audit every copy_to_user in envctrl_read.
77 /* Monitor type of i2c child device.
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/linux/Documentation/devicetree/bindings/firmware/
H A Damlogic,meson-gxbb-sm.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/firmware/amlogic,meson-gxbb-sm.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Amlogic Secure Monitor (SM)
10 In the Amlogic SoCs the Secure Monitor code is used to provide access to the
14 - Neil Armstrong <neil.armstrong@linaro.org>
19 - const: amlogic,meson-gxbb-sm
20 - items:
21 - const: amlogic,meson-gx-sm
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/linux/Documentation/ABI/testing/
H A Dsysfs-driver-ufs3 Contact: linux-scsi@vger.kernel.org
5 This file contains the auto-hibernate idle timer setting of a
6 UFS host controller. A value of '0' means auto-hibernate is not
9 the link into hibernate state. That will save power at the
11 10-bit values with a power-of-ten multiplier which allows a
104 Description: This file shows value that defines the power mode after
273 written during the pre-soldering phase of the PSA flow.
307 Description: This file shows the MIPI M-PHY version number in BCD format.
395 Description: This file shows the maximum data-in buffer size. This
406 Description: This file shows the maximum data-out buffer size. This
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/linux/drivers/platform/x86/
H A Dintel_ips.c1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (c) 2009-2010 Intel Corporation
10 * Some Intel Ibex Peak based platforms support so-called "intelligent
11 * power sharing", which allows the CPU and GPU to cooperate to maximize
14 * power statistics in the platform, and initializes power monitoring
17 * by tracking power and thermal budget; secondarily it can boost turbo
18 * performance by allocating more power or thermal budget to the CPU or GPU
22 * thermal headroom is available, the CPU and/or GPU power clamps may be
34 * - dual MCP configs
37 * - handle CPU hotplug
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/linux/tools/power/cpupower/
H A DTODO3 - Use bitmask functions to parse CPU topology more robust
5 - Try to read out boost states and frequencies on Intel
6 - Somewhere saw the ability to read power consumption of
7 RAM from HW on Intel SandyBridge -> another monitor?
8 - Add another c1e debug idle monitor
9 -> Is by design racy with BIOS, but could be added
10 with a --force option and some "be careful" messages
11 - Add cpu_start()/cpu_stop() callbacks for monitor
12 -> This is to move the per_cpu logic from inside the
13 monitor to outside it. This can be given higher
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/linux/arch/x86/include/asm/
H A Dmwait.h1 /* SPDX-License-Identifier: GPL-2.0 */
9 #include <asm/nospec-branch.h>
34 asm volatile("monitor" :: "a" (eax), "c" (ecx), "d" (edx)); in __monitor()
72 * MONITOR MONITORX
74 * EAX (logical) address to monitor
85 * Re-enable interrupts right upon calling mwait in such a way that
100 * This uses new MONITOR/MWAIT instructions on P4 processors with PNI,
102 * We execute MONITOR against need_resched and enter optimized wait state
117 const void *addr = &current_thread_info()->flags; in mwait_idle_with_hints()
139 * power saving) or C0.2 state (saves more power, but longer wakeup
/linux/Documentation/devicetree/bindings/iio/adc/
H A Drichtek,rtq6056.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: RTQ6056 Bi-Directional Current and Power Monitor with 16-bit ADC
10 - ChiYuan Huang <cy_huang@richtek.com>
13 The RTQ6056 is a high accuracy current-sense monitor with I2C and SMBus
15 out the loading current and power.
18 voltage, converts into the current in amperes, and power in watts through
19 internal analog-to-digital converter ADC. The programmable calibration,
24 https://www.richtek.com/assets/product_file/RTQ6056/DSQ6056-00.pdf
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/linux/Documentation/devicetree/bindings/nvmem/
H A Damlogic,meson-gxbb-efuse.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/nvmem/amlogic,meson-gxbb-efuse.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Neil Armstrong <neil.armstrong@linaro.org>
13 - $ref: nvmem.yaml#
14 - $ref: nvmem-deprecated-cells.yaml#
19 - const: amlogic,meson-gxbb-efuse
20 - items:
21 - const: amlogic,meson-gx-efuse
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/linux/Documentation/devicetree/bindings/power/supply/
H A Dcw2015_battery.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/power/supply/cw2015_battery.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Tobias Schramm <t.schramm@manjaro.org>
13 The driver can utilize information from a simple-battery linked via a
14 phandle in monitored-battery. If specified the driver uses the
15 charge-full-design-microamp-hours property of the battery.
18 - $ref: power-supply.yaml#
27 cellwise,battery-profile:
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/linux/drivers/hwmon/
H A Dltc2947-i2c.c1 // SPDX-License-Identifier: GPL-2.0
3 * Analog Devices LTC2947 high precision power and energy monitor over I2C
26 return ltc2947_core_probe(map, i2c->name); in ltc2947_probe()
47 MODULE_DESCRIPTION("LTC2947 I2C power and energy monitor driver");
H A Dltc2947-spi.c1 // SPDX-License-Identifier: GPL-2.0
3 * Analog Devices LTC2947 high precision power and energy monitor over SPI
28 return ltc2947_core_probe(map, spi_get_device_id(spi)->name); in ltc2947_probe()
49 MODULE_DESCRIPTION("LTC2947 SPI power and energy monitor driver");
/linux/arch/arm/mach-omap2/
H A Dsleep34xx.S1 /* SPDX-License-Identifier: GPL-2.0-or-later */
5 * Karthik Dasu <karthik-dp@ti.com>
9 * Richard Woodruff <r-woodruff2@ti.com>
57 * with non-Thumb-2-capable firmware.
86 .arch armv7-a
89 stmfd sp!, {r4 - r11, lr} @ save registers on stack
98 smc #1 @ call SMI monitor (smi #1)
103 ldmfd sp!, {r4 - r11, pc}
115 * omap34xx_cpu_suspend() - This bit of code saves the CPU context if needed
117 * power domains states to the desired target power states.
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/linux/drivers/net/ethernet/sfc/falcon/
H A Dfalcon_boards.c1 // SPDX-License-Identifier: GPL-2.0-only
4 * Copyright 2007-2012 Solarflare Communications Inc.
91 struct i2c_client *client = i2c_new_client_device(&board->i2c_adap, info); in ef4_init_lm87()
97 /* Read-to-clear alarm/interrupt status */ in ef4_init_lm87()
108 board->hwmon_client = client; in ef4_init_lm87()
118 i2c_unregister_device(falcon_board(efx)->hwmon_client); in ef4_fini_lm87()
123 struct i2c_client *client = falcon_board(efx)->hwmon_client; in ef4_check_lm87()
128 /* If link is up then do not monitor temperature */ in ef4_check_lm87()
129 if (EF4_WORKAROUND_7884(efx) && efx->link_state.up) in ef4_check_lm87()
161 netif_err(efx, hw, efx->net_dev, in ef4_check_lm87()
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