Home
last modified time | relevance | path

Searched full:energy (Results 1 – 25 of 230) sorted by relevance

12345678910

/Linux-v5.4/Documentation/scheduler/
Dsched-energy.rst2 Energy Aware Scheduling
8 Energy Aware Scheduling (or EAS) gives the scheduler the ability to predict
9 the impact of its decisions on the energy consumed by CPUs. EAS relies on an
10 Energy Model (EM) of the CPUs to select an energy efficient CPU for each task,
20 because this is where the potential for saving energy through scheduling is
25 please refer to its documentation (see Documentation/power/energy-model.rst).
32 - energy = [joule] (resource like a battery on powered devices)
33 - power = energy/time = [joule/second] = [watt]
35 The goal of EAS is to minimize energy, while still getting the job done. That
44 energy [J]
[all …]
/Linux-v5.4/Documentation/devicetree/bindings/net/
Dsmsc-lan87xx.txt8 - smsc,disable-energy-detect:
9 If set, do not enable energy detect mode for the SMSC phy.
10 default: enable energy detect mode
13 smsc phy with disabled energy detect mode on an am335x based board.
21 smsc,disable-energy-detect;
Dethernet-phy.yaml93 Mark the corresponding energy efficient ethernet mode as
99 Mark the corresponding energy efficient ethernet mode as
105 Mark the corresponding energy efficient ethernet mode as
111 Mark the corresponding energy efficient ethernet mode as
117 Mark the corresponding energy efficient ethernet mode as
123 Mark the corresponding energy efficient ethernet mode as
/Linux-v5.4/Documentation/hwmon/
Dibmaem.rst4 This driver talks to the IBM Systems Director Active Energy Manager, known
26 This driver implements sensor reading support for the energy and power meters
31 The v1 AEM interface has a simple set of features to monitor energy use. There
32 is a register that displays an estimate of raw energy consumption since the
37 range of energy and power use registers, the power cap as set by the AEM
/Linux-v5.4/drivers/isdn/mISDN/
Ddsp_ecdis.h61 /* Estimate the overall energy in the channel, and the energy in in echo_can_disable_detector_update()
62 the notch (i.e. overall channel energy - tone energy => noise). in echo_can_disable_detector_update()
64 Damp the overall energy a little more for a stable result. in echo_can_disable_detector_update()
65 Damp the notch energy a little less, so we don't damp out the in echo_can_disable_detector_update()
70 /* There is adequate energy in the channel. in echo_can_disable_detector_update()
/Linux-v5.4/include/linux/
Denergy_model.h18 * energy calculation. Equal to: power * max_frequency / frequency
71 * em_pd_energy() - Estimates the energy consumed by the CPUs of a perf. domain
72 * @pd : performance domain for which energy has to be estimated
76 * Return: the sum of the energy consumed by the CPUs of the domain assuming
97 * Find the lowest capacity state of the Energy Model above the in em_pd_energy()
115 * the EM), the energy consumed by this CPU at that capacity state is in em_pd_energy()
125 * units of power, it can be manipulated as an energy value in em_pd_energy()
141 * total energy of the domain (which is the simple sum of the energy of in em_pd_energy()
/Linux-v5.4/arch/x86/events/intel/
Drapl.c3 * Support Intel RAPL energy consumption counters
9 * RAPL provides more controls than just reporting energy consumption
10 * however here we only expose the 3 energy consumption free running
67 * RAPL energy status counters
398 RAPL_EVENT_ATTR_STR(energy-cores, rapl_cores, "event=0x01");
399 RAPL_EVENT_ATTR_STR(energy-pkg , rapl_pkg, "event=0x02");
400 RAPL_EVENT_ATTR_STR(energy-ram , rapl_ram, "event=0x03");
401 RAPL_EVENT_ATTR_STR(energy-gpu , rapl_gpu, "event=0x04");
402 RAPL_EVENT_ATTR_STR(energy-psys, rapl_psys, "event=0x05");
404 RAPL_EVENT_ATTR_STR(energy-cores.unit, rapl_cores_unit, "Joules");
[all …]
/Linux-v5.4/net/bluetooth/
DKconfig31 SMP (Security Manager Protocol) on LE (Low Energy) links
74 bool "Bluetooth Low Energy (LE) features"
78 Bluetooth Low Energy includes support low-energy physical
85 IPv6 compression over Bluetooth Low Energy.
114 Bluetooth Low Energy Secure Connections feature.
/Linux-v5.4/Documentation/devicetree/bindings/display/
Dste,mcde.txt18 (HDMI clock), DSI0ESCLK (DSI0 energy save clock),
19 DSI1ESCLK (DSI1 energy save clock), DSI2ESCLK (DSI2 energy
37 - clocks: phandles to the high speed and low power (energy save) clocks
41 (energy save) clock
98 /* This DSI port only has the Low Power / Energy Save clock */
/Linux-v5.4/tools/power/x86/x86_energy_perf_policy/
Dx86_energy_perf_policy.85 x86_energy_perf_policy \- Manage Energy vs. Performance Policy via x86 Model Specific Registers
21 displays and updates energy-performance policy settings specific to
31 Further, it allows the OS to influence energy/performance trade-offs where there
82 Set a policy with a normal balance between performance and energy efficiency.
84 for potentially significant energy savings.
90 accepting no performance sacrifice for the benefit of energy efficiency.
94 but allowing some performance loss to benefit energy efficiency.
102 a measurable performance impact to maximize energy efficiency.
/Linux-v5.4/Documentation/power/
Denergy-model.rst2 Energy Model of CPUs
8 The Energy Model (EM) framework serves as an interface between drivers knowing
10 subsystems willing to use that information to make energy-aware decisions.
34 | Energy Model |
88 Subsystems interested in the energy model of a CPU can retrieve it using the
89 em_cpu_get() API. The energy model tables are allocated once upon creation of
92 The energy consumed by a performance domain can be estimated using the
103 performance domain in the Energy Model framework using the (fake) 'foo'
/Linux-v5.4/Documentation/devicetree/bindings/arm/
Didle-states.txt43 timing and energy related properties, that underline the HW behaviour
73 IDLE: This is the actual energy-saving idle period. This may last
116 expressed in time units but must factor in energy consumption coefficients.
118 The energy consumption of a cpu when it enters a power state can be roughly
141 Graph 1: Energy vs time example
145 and denotes the energy costs incurred while entering and leaving the idle
148 shallower slope and essentially represents the energy consumption of the idle
153 which choosing that state become the most energy efficient option. A good
155 states energy consumptions plots.
179 |IDLE1-energy < IDLE2-energy | IDLE2-energy < IDLE1-energy
[all …]
Dvexpress-sysreg.txt71 "arm,vexpress-energy"
86 - some functions (eg. energy meter, with its 64 bit long counter)
99 energy@0 {
100 compatible = "arm,vexpress-energy";
/Linux-v5.4/Documentation/admin-guide/pm/
Dintel_epb.rst5 Intel Performance and Energy Bias Hint
16 Intel Performance and Energy Bias Attribute in ``sysfs``
19 The Intel Performance and Energy Bias Hint (EPB) value for a given (logical) CPU
27 and a value of 15 corresponds to the maximum energy savings.
/Linux-v5.4/Documentation/devicetree/bindings/hwmon/
Dvexpress.txt10 "arm,vexpress-energy"
19 energy@0 {
20 compatible = "arm,vexpress-energy";
/Linux-v5.4/include/linux/mfd/
Dac100.h112 #define AC100_DAC_DAP_L_H_E_A_C 0xa3 /* Left High Energy Avg Coef */
113 #define AC100_DAC_DAP_L_L_E_A_C 0xa4 /* Left Low Energy Avg Coef */
114 #define AC100_DAC_DAP_R_H_E_A_C 0xa5 /* Right High Energy Avg Coef */
115 #define AC100_DAC_DAP_R_L_E_A_C 0xa6 /* Right Low Energy Avg Coef */
120 #define AC100_DAC_DAP_H_E_TH 0xab /* High Energy Threshold */
121 #define AC100_DAC_DAP_L_E_TH 0xac /* Low Energy Threshold */
/Linux-v5.4/drivers/staging/iio/meter/
DKconfig5 menu "Active energy metering IC"
8 tristate "Analog Devices ADE7854/58/68/78 Polyphase Multifunction Energy Metering IC Driver"
12 Multifunction Energy Metering IC Driver.
/Linux-v5.4/drivers/misc/echo/
Decho.h72 band energy such as signalling tones or DTMF), the adaption can go seriously
77 canceller to converge on this kind of narrowband energy probably a good thing,
79 continue converging on such energy is just a way to ruin its generalised
94 energy is that we must do this very quickly. Given a reasonably long sample of
100 end energy.
/Linux-v5.4/drivers/net/wireless/intel/iwlwifi/fw/api/
Dpower.h129 /* Radio LP RX Energy Threshold measured in dBm */
468 * to driver if delta in Energy values calculated for this and last
470 * the Energy change is ignored for beacon filtering, and beacon will
472 * energy delta 5dB.
474 * Send beacon to driver if delta in Energy values calculated for this
476 * means that the Energy change is ignored for beacon filtering while in
477 * Roaming state, typical energy delta 1dB.
478 * @bf_roaming_state: Used for RSSI filtering. If absolute Energy values
480 * Roaming Energy Delta Threshold, otherwise use normal Energy Delta
481 * Threshold. Typical energy threshold is -72dBm.
[all …]
/Linux-v5.4/tools/power/cpupower/man/
Dcpupower-set.127 its policy for the relative importance of performance versus energy savings to
31 performance and 15 is maximum energy efficiency.
35 energy efficiency.
/Linux-v5.4/arch/sparc/include/asm/
Dbbc.h27 #define BBC_ES_CTRL 0x0e /* [H] Energy Star Control */
167 /* Energy Star Control register. This register is used to generate the
182 /* Energy Star Assert Change Time register. This determines the number
189 /* Energy Star Assert Bypass Time register. This determines the number
196 /* Energy Star PLL Settle Time register. This determines the number of
203 /* Energy Star Frequency Switch Latency register. This is the number of
220 * is changed via Energy Star.
/Linux-v5.4/drivers/net/phy/
Dsmsc.c65 /* Enable energy detect mode for this SMSC Transceivers */ in smsc_phy_config_init()
101 * plugs in while LAN87xx is in Energy Detect Power-Down mode. This leads to
103 * This workaround disables Energy Detect Power-Down mode and waiting for
105 * The Energy Detect Power-Down mode is enabled again in the end of procedure to
127 /* Wait max 640 ms to detect energy */ in lan87xx_read_status()
203 if (of_property_read_bool(of_node, "smsc,disable-energy-detect")) in smsc_phy_probe()
/Linux-v5.4/Documentation/driver-api/xilinx/
Deemi.rst12 Embedded Energy Management Interface (EEMI)
14 The embedded energy management interface is used to allow software
66 [0] Embedded Energy Management Interface (EEMI) API guide:
/Linux-v5.4/kernel/power/
Denergy_model.c3 * Energy Model of CPUs
186 * em_register_perf_domain() - Register the Energy Model of a performance domain
189 * @cb : Callback functions providing the data of the Energy Model
191 * Create Energy Model tables for a performance domain using the callbacks
236 /* Create the performance domain and add it to the Energy Model. */ in em_register_perf_domain()
/Linux-v5.4/drivers/hwmon/
Dibmaem.c3 * A hwmon driver for the IBM System Director Active Energy Manager (AEM)
4 * temperature/power/energy sensors and capping functionality.
63 /* AEM 2.x has more energy registers */
145 * Energy meter
149 * Two energy meters
158 /* energy use in mJ */
159 u64 energy[AEM_NUM_ENERGY_REGS]; member
426 /* Update AEM energy registers */
430 &data->energy[which], 8); in update_aem_energy_one()
835 before = data->energy[attr->index]; in aem_show_power()
[all …]

12345678910