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/linux-6.14.4/Documentation/ABI/testing/
Dsysfs-class-powercap4 Contact: linux-[email protected]
13 Contact: linux-[email protected]
22 Contact: linux-[email protected]
30 Contact: linux-[email protected]
35 E.g. intel-rapl:0:1:1.
40 Contact: linux-[email protected]
51 Contact: linux-[email protected]
58 Contact: linux-[email protected]
60 Current energy counter in micro-joules. Write "0" to reset.
62 read-only.
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/linux-6.14.4/Documentation/power/powercap/
Dpowercap.rst15 example, the intel-rapl control type represents the Intel "Running Average
16 Power Limit" (RAPL) technology, whereas the 'idle-injection' control type
35 └──intel-rapl
36 ├──intel-rapl:0
43 │   ├──device -> ../../intel-rapl
45 │   ├──intel-rapl:0:0
52 │   │   ├──device -> ../../intel-rapl:0
60 │   │   ├──subsystem -> ../../../../../../class/power_cap
62 │   ├──intel-rapl:0:1
69 │   │   ├──device -> ../../intel-rapl:0
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/linux-6.14.4/include/linux/
Dpowercap.h1 /* SPDX-License-Identifier: GPL-2.0-only */
24 * struct powercap_control_type_ops - Define control type callbacks
47 * struct powercap_control_type - Defines a powercap control_type
58 * @node: linked-list node
61 * zones, which use same method to control power. E.g. RAPL, RAPL-PCI etc.
75 * struct powercap_zone_ops - Define power zone callbacks
77 * micro-joules.
78 * @get_energy_uj: Get current energy counter in micro-joules.
79 * @reset_energy_uj: Reset micro-joules energy counter.
81 * micro-watts.
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Denergy_model.h1 /* SPDX-License-Identifier: GPL-2.0 */
15 * struct em_perf_state - Performance state of a performance domain
43 * struct em_perf_table - Performance states table
55 * struct em_perf_domain - Performance domain
68 * must have the same micro-architecture. Performance domains often have
69 * a 1-to-1 mapping with CPUFreq policies. In case of other devices the @cpus
84 * EM_PERF_DOMAIN_MICROWATTS: The power values are in micro-Watts or some
97 #define em_span_cpus(em) (to_cpumask((em)->cpus))
98 #define em_is_artificial(em) ((em)->flags & EM_PERF_DOMAIN_ARTIFICIAL)
102 * The max power value in micro-Watts. The limit of 64 Watts is set as
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/linux-6.14.4/arch/x86/events/amd/
Dpower.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Performance events - AMD Processor Power Reporting Mechanism
5 * Copyright (C) 2016 Advanced Micro Devices, Inc.
16 /* Event code: LSB 8 bits, passed in attr->config any other bit is reserved. */
45 struct hw_perf_event *hwc = &event->hw; in event_update()
49 prev_pwr_acc = hwc->pwr_acc; in event_update()
50 prev_ptsc = hwc->ptsc; in event_update()
56 * final value (delta) is micro-Watts. Then add it to the event count. in event_update()
60 delta -= prev_pwr_acc; in event_update()
62 delta = new_pwr_acc - prev_pwr_acc; in event_update()
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/linux-6.14.4/drivers/fpga/
Ddfl-fme-main.c1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright (C) 2017-2018 Intel Corporation, Inc.
18 #include <linux/hwmon-sysfs.h>
23 #include <linux/fpga-dfl.h>
26 #include "dfl-fme.h"
147 struct dfl_fpga_cdev *cdev = fdata->dfl_cdev; in fme_hdr_ioctl_release_port()
151 return -EFAULT; in fme_hdr_ioctl_release_port()
159 struct dfl_fpga_cdev *cdev = fdata->dfl_cdev; in fme_hdr_ioctl_assign_port()
163 return -EFAULT; in fme_hdr_ioctl_assign_port()
172 struct dfl_feature_dev_data *fdata = to_dfl_feature_dev_data(&pdev->dev); in fme_hdr_ioctl()
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/linux-6.14.4/tools/power/cpupower/utils/
Dpowercap-info.c1 // SPDX-License-Identifier: GPL-2.0-only
31 for (i = 0; i < zone->tree_depth && i < POWERCAP_MAX_TREE_DEPTH; i++) in powercap_print_one_zone()
34 printf("%sZone: %s", pr_prefix, zone->name); in powercap_print_one_zone()
40 if (zone->has_power_uw) in powercap_print_one_zone()
41 printf(_("%sPower can be monitored in micro Jules\n"), in powercap_print_one_zone()
44 if (zone->has_energy_uj) in powercap_print_one_zone()
45 printf(_("%sPower can be monitored in micro Watts\n"), in powercap_print_one_zone()
73 return -1; in powercap_show()
103 case -1: in cmd_cap_info()
/linux-6.14.4/Documentation/devicetree/bindings/iio/adc/
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 <[email protected]>
13 The RTQ6056 is a high accuracy current-sense monitor with I2C and SMBus
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
29 - enum:
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/linux-6.14.4/Documentation/power/
Denergy-model.rst1 .. SPDX-License-Identifier: GPL-2.0
8 -----------
12 subsystems willing to use that information to make energy-aware decisions.
18 each and every client subsystem to re-implement support for each and every
23 The power values might be expressed in micro-Watts or in an 'abstract scale'.
26 can be found in the Energy-Aware Scheduler documentation
27 Documentation/scheduler/sched-energy.rst. For some subsystems like thermal or
30 thus the real micro-Watts might be needed. An example of these requirements can
32 Documentation/driver-api/thermal/power_allocator.rst.
36 an 'abstract scale' deriving real energy in micro-Joules would not be possible.
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/linux-6.14.4/drivers/hwmon/
Diio_hwmon.c1 // SPDX-License-Identifier: GPL-2.0-only
16 #include <linux/hwmon-sysfs.h>
21 * struct iio_hwmon_state - device instance state
42 struct iio_channel *chan = &state->channels[sattr->index]; in iio_hwmon_read_label()
60 struct iio_channel *chan = &state->channels[sattr->index]; in iio_hwmon_read_val()
68 /* mili-Watts to micro-Watts conversion */ in iio_hwmon_read_val()
80 struct device *dev = &pdev->dev; in iio_hwmon_probe()
94 if (ret == -ENODEV) in iio_hwmon_probe()
95 ret = -EPROBE_DEFER; in iio_hwmon_probe()
103 return -ENOMEM; in iio_hwmon_probe()
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Dcorsair-psu.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * corsair-psu.c - Linux driver for Corsair power supplies with HID sensors interface
12 #include <linux/hwmon-sysfs.h>
29 * - commands are byte sized opcodes
30 * - length is the sum of all bytes of the commands/params
31 * - the micro-controller of most of these PSUs support concatenation in the request and reply,
33 * - the driver uses raw events to be accessible from userspace (though this is not really
35 * - a reply always starts with the length and command in the same order the request used it
36 * - length of the reply data is specific to the command used
37 * - some of the commands work on a rail and can be switched to a specific rail (0 = 12v,
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Dibmpowernv.c1 // SPDX-License-Identifier: GPL-2.0-or-later
14 #include <linux/hwmon-sysfs.h>
46 #define INVALID_INDEX (-1U)
53 "ibm,opal-sensor-cooling-fan",
54 "ibm,opal-sensor-amb-temp",
55 "ibm,opal-sensor-power-supply",
56 "ibm,opal-sensor-power"
60 const char *name; /* matches property 'sensor-type' */
105 if (sdata->sgrp_data && !sdata->sgrp_data->enable) in show_sensor()
106 return -ENODATA; in show_sensor()
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/linux-6.14.4/Documentation/hwmon/
Daquacomputer_d5next.rst1 .. SPDX-License-Identifier: GPL-2.0-or-later
3 Kernel driver aquacomputer-d5next
25 -----------
37 available through debugfs are the serial number, firmware version and power-on
39 temperature curves directly from the pump. If it's not connected, the fan-related
65 filled with coolant. Pump RPM and flow can be set to enhance on-device calculations,
87 -----------
93 -------------
96 temp[1-20]_input Physical/virtual temperature sensors (in millidegrees Celsius)
97 temp[1-8]_offset Temperature sensor correction offset (in millidegrees Celsius)
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/linux-6.14.4/Documentation/devicetree/bindings/opp/
Dopp-v2-base.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/opp/opp-v2-base.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Viresh Kumar <[email protected]>
13 Devices work at voltage-current-frequency combinations and some implementations
25 pattern: '^opp-table(-[a-z0-9]+)?$'
27 opp-shared:
36 '^opp(-?[0-9]+)*$':
39 One or more OPP nodes describing voltage-current-frequency combinations.
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/linux-6.14.4/drivers/gpu/drm/amd/include/
Dkgd_pp_interface.h2 * Copyright 2017 Advanced Micro Devices, Inc.
167 PP_SMC_POWER_PROFILE_UNKNOWN = -1,
237 * APU power is managed to system-level requirements through the PPT
247 * enum pp_power_limit_level - Used to query the power limits
255 PP_PWR_LIMIT_MIN = -1,
262 * enum pp_power_type - Used to specify the type of the requested power
275 XGMI_PLPD_NONE = -1,
283 PP_PM_POLICY_NONE = -1,
760 /* Power (Watts) */
768 /* Energy (15.259uJ (2^-16) units) */
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Damd_acpi.h2 * Copyright 2012 Advanced Micro Devices, Inc.
48 u8 thermal_state; /* thermal state: state id (0: exit state, non-0: state) */
52 u8 backlight_level; /* panel backlight level (0-255) */
64 u8 ipnut_signal; /* input signal in range 0-255 */
73 u8 min_input_signal; /* max input signal in range 0-255 */
74 u8 max_input_signal; /* min input signal in range 0-255 */
94 u16 client_id; /* client id (bit 2-0: func num, 7-3: dev num, 15-8: bus num) */
108 u16 dgpu_id; /* client id (bit 2-0: func num, 7-3: dev num, 15-8: bus num) */
154 * WORD - structure size in bytes (includes size field)
155 * WORD - version
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/linux-6.14.4/drivers/cpufreq/
Dmediatek-cpufreq-hw.c1 // SPDX-License-Identifier: GPL-2.0
63 policy = cpufreq_cpu_get_raw(cpu_dev->id); in mtk_cpufreq_get_cpu_power()
65 return -EINVAL; in mtk_cpufreq_get_cpu_power()
67 data = policy->driver_data; in mtk_cpufreq_get_cpu_power()
69 for (i = 0; i < data->nr_opp; i++) { in mtk_cpufreq_get_cpu_power()
70 if (data->table[i].frequency < *KHz) in mtk_cpufreq_get_cpu_power()
73 i--; in mtk_cpufreq_get_cpu_power()
75 *KHz = data->table[i].frequency; in mtk_cpufreq_get_cpu_power()
76 /* Provide micro-Watts value to the Energy Model */ in mtk_cpufreq_get_cpu_power()
77 *uW = readl_relaxed(data->reg_bases[REG_EM_POWER_TBL] + in mtk_cpufreq_get_cpu_power()
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/linux-6.14.4/drivers/gpu/drm/amd/pm/swsmu/inc/pmfw_if/
Dsmu13_driver_if_v13_0_0.h2 * Copyright 2021 Advanced Micro Devices, Inc.
503 uint8_t SnapToDiscrete; // 0 - Fine grained DPM, 1 - Discrete DPM
506 LinearInt_t ConversionToAvfsClk; // Transfer function to AVFS Clock (GHz->GHz)
875 uint16_t Power[PPT_THROTTLER_COUNT][POWER_SOURCE_COUNT]; // Watts
953 …uint16_t SocketPowerLimitAc[PPT_THROTTLER_COUNT]; // In Watts. Power limit that PMFW attempts to c…
954 …uint16_t SocketPowerLimitDc[PPT_THROTTLER_COUNT]; // In Watts. Power limit that PMFW attempts to …
956 uint16_t SocketPowerLimitSmartShift2; // In Watts. Power limit used SmartShift
1007 …uint16_t Vmin_Hot_T0[PMFW_VOLT_PLANE_COUNT]; //In mV(Q2) Initial (pre-aging) Vse…
1008 …uint16_t Vmin_Cold_T0[PMFW_VOLT_PLANE_COUNT]; //In mV(Q2) Initial (pre-aging) Vse…
1009 …uint16_t Vmin_Hot_Eol[PMFW_VOLT_PLANE_COUNT]; //In mV(Q2) End-of-life Vset to be …
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Dsmu13_driver_if_v13_0_7.h2 * Copyright 2022 Advanced Micro Devices, Inc.
504 uint8_t SnapToDiscrete; // 0 - Fine grained DPM, 1 - Discrete DPM
507 LinearInt_t ConversionToAvfsClk; // Transfer function to AVFS Clock (GHz->GHz)
884 uint16_t Power[PPT_THROTTLER_COUNT][POWER_SOURCE_COUNT]; // Watts
962 …uint16_t SocketPowerLimitAc[PPT_THROTTLER_COUNT]; // In Watts. Power limit that PMFW attempts to c…
963 …uint16_t SocketPowerLimitDc[PPT_THROTTLER_COUNT]; // In Watts. Power limit that PMFW attempts to …
965 uint16_t SocketPowerLimitSmartShift2; // In Watts. Power limit used SmartShift
1016 …uint16_t Vmin_Hot_T0[PMFW_VOLT_PLANE_COUNT]; //In mV(Q2) Initial (pre-aging) Vse…
1017 …uint16_t Vmin_Cold_T0[PMFW_VOLT_PLANE_COUNT]; //In mV(Q2) Initial (pre-aging) Vse…
1018 …uint16_t Vmin_Hot_Eol[PMFW_VOLT_PLANE_COUNT]; //In mV(Q2) End-of-life Vset to be …
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Dsmu14_driver_if_v14_0.h2 * Copyright 2023 Advanced Micro Devices, Inc.
517 uint8_t SnapToDiscrete; // 0 - Fine grained DPM, 1 - Discrete DPM
520 LinearInt_t ConversionToAvfsClk; // Transfer function to AVFS Clock (GHz->GHz)
975 uint16_t Power[PPT_THROTTLER_COUNT][POWER_SOURCE_COUNT]; // Watts
1106 …uint16_t Vmin_Hot_T0[PMFW_VOLT_PLANE_COUNT]; //In mV(Q2) Initial (pre-aging) Vse…
1107 …uint16_t Vmin_Cold_T0[PMFW_VOLT_PLANE_COUNT]; //In mV(Q2) Initial (pre-aging) Vse…
1108 …uint16_t Vmin_Hot_Eol[PMFW_VOLT_PLANE_COUNT]; //In mV(Q2) End-of-life Vset to be …
1109 …uint16_t Vmin_Cold_Eol[PMFW_VOLT_PLANE_COUNT]; //In mV(Q2) End-of-life Vset to be …
1110 uint16_t Vmin_Aging_Offset[PMFW_VOLT_PLANE_COUNT]; //In mV(Q2) Worst-case aging margin
1116 …//Linear offset or GB term to account for mis-correlation between PSM and Vmin shift trends across…
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Dsmu13_driver_if_aldebaran.h2 * Copyright 2020 Advanced Micro Devices, Inc.
268 LinearInt_t ConversionToAvfsClk; // Transfer function to AVFS Clock (GHz->GHz)
269 QuadraticInt_t SsCurve; // Slow-slow curve (GHz->V)
280 uint16_t PptLimit; // Watts
388 uint32_t ApccPlusResidencyLimit; //PCC residency % (0-100)
467 // Padding - ignore
502 // Padding - ignore
Dsmu11_driver_if_sienna_cichlid.h2 * Copyright 2020 Advanced Micro Devices, Inc.
53 #define MAX_GFXCLK_DPM_LEVEL (NUM_GFXCLK_DPM_LEVELS - 1)
54 #define MAX_SMNCLK_DPM_LEVEL (NUM_SMNCLK_DPM_LEVELS - 1)
55 #define MAX_SOCCLK_DPM_LEVEL (NUM_SOCCLK_DPM_LEVELS - 1)
56 #define MAX_MP0CLK_DPM_LEVEL (NUM_MP0CLK_DPM_LEVELS - 1)
57 #define MAX_DCLK_DPM_LEVEL (NUM_DCLK_DPM_LEVELS - 1)
58 #define MAX_VCLK_DPM_LEVEL (NUM_VCLK_DPM_LEVELS - 1)
59 #define MAX_DCEFCLK_DPM_LEVEL (NUM_DCEFCLK_DPM_LEVELS - 1)
60 #define MAX_DISPCLK_DPM_LEVEL (NUM_DISPCLK_DPM_LEVELS - 1)
61 #define MAX_PIXCLK_DPM_LEVEL (NUM_PIXCLK_DPM_LEVELS - 1)
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/linux-6.14.4/drivers/gpu/drm/amd/pm/powerplay/inc/
Dsmu9_driver_if.h2 * Copyright 2016 Advanced Micro Devices, Inc.
46 #define MAX_GFXCLK_DPM_LEVEL (NUM_GFXCLK_DPM_LEVELS - 1)
47 #define MAX_UVD_DPM_LEVEL (NUM_UVD_DPM_LEVELS - 1)
48 #define MAX_VCE_DPM_LEVEL (NUM_VCE_DPM_LEVELS - 1)
49 #define MAX_MP0CLK_DPM_LEVEL (NUM_MP0CLK_DPM_LEVELS - 1)
50 #define MAX_UCLK_DPM_LEVEL (NUM_UCLK_DPM_LEVELS - 1)
51 #define MAX_SOCCLK_DPM_LEVEL (NUM_SOCCLK_DPM_LEVELS - 1)
52 #define MAX_DCEFCLK_DPM_LEVEL (NUM_DCEFCLK_DPM_LEVELS - 1)
53 #define MAX_LINK_DPM_LEVEL (NUM_LINK_LEVELS - 1)
65 #define MAX_EVV_VOLTAGE_LEVEL (NUM_EVV_VOLTAGE_LEVELS - 1)
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/linux-6.14.4/kernel/power/
Denergy_model.c1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright (c) 2018-2021, Arm ltd.
34 return (dev->bus == &cpu_subsys); in _is_cpu_device()
48 struct em_dbg_info *em_dbg = s->private; \
53 table = em_perf_state_from_pd(em_dbg->pd); \
54 val = table[em_dbg->ps_id].name; \
87 /* Create per-ps directory */ in em_debug_create_ps()
103 seq_printf(s, "%*pbl\n", cpumask_pr_args(to_cpumask(s->private))); in em_debug_cpus_show()
111 struct em_perf_domain *pd = s->private; in em_debug_flags_show()
113 seq_printf(s, "%#lx\n", pd->flags); in em_debug_flags_show()
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/linux-6.14.4/drivers/gpu/drm/amd/pm/swsmu/smu13/
Dyellow_carp_ppt.c2 * Copyright 2020 Advanced Micro Devices, Inc.
153 struct smu_table_context *smu_table = &smu->smu_table; in yellow_carp_init_smc_tables()
154 struct smu_table *tables = smu_table->tables; in yellow_carp_init_smc_tables()
163 smu_table->clocks_table = kzalloc(sizeof(DpmClocks_t), GFP_KERNEL); in yellow_carp_init_smc_tables()
164 if (!smu_table->clocks_table) in yellow_carp_init_smc_tables()
167 smu_table->metrics_table = kzalloc(sizeof(SmuMetrics_t), GFP_KERNEL); in yellow_carp_init_smc_tables()
168 if (!smu_table->metrics_table) in yellow_carp_init_smc_tables()
170 smu_table->metrics_time = 0; in yellow_carp_init_smc_tables()
172 smu_table->watermarks_table = kzalloc(sizeof(Watermarks_t), GFP_KERNEL); in yellow_carp_init_smc_tables()
173 if (!smu_table->watermarks_table) in yellow_carp_init_smc_tables()
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