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/linux/Documentation/arch/x86/
H A Damd-hfi.rst16 architectural class and CPUs are comprised of cores of various efficiency and
38 efficiency capability data for each CPU in the system. The scheduler can use
45 describes an efficiency and performance ranking for each classification.
74 about the performance and energy efficiency of each CPU in the system. Each
77 efficiency value indicates more efficiency. Energy efficiency and performance
83 a reordering of the performance and efficiency ranking. Table updates happen
95 on that processor for performance or energy efficiency reasons, respectively.
119 performance and energy efficiency capabilities of each CPU in the system.
122 rankings both for performance and efficiency for each workload classification.
H A Dintel-hfi.rst14 The HFI gives the operating system a performance and energy efficiency
22 about the performance and energy efficiency of each CPU in the system. Each
24 indicate higher capability. Energy efficiency and performance are reported in
41 that processor for performance or energy efficiency reasons, respectively.
/linux/Documentation/admin-guide/pm/
H A Dintel_uncore_frequency_scaling.rst127 Efficiency vs. Latency Tradeoff
130 The Efficiency Latency Control (ELC) feature improves performance
157 Attributes for efficiency latency control:
160 This attribute is used to get/set the efficiency latency floor frequency.
165 This attribute is used to get/set the efficiency latency control low
169 This attribute is used to get/set the efficiency latency control high
173 This attribute is used to enable/disable the efficiency latency control
/linux/Documentation/devicetree/bindings/regulator/
H A Dmediatek,mt6363-regulator.yaml89 regulator efficiency
90 2 - Forced Low Power mode for improved regulator efficiency, used
93 regulation accuracy and efficiency losses.
134 2 - Forced Low Power mode for improved regulator efficiency, used
137 regulation accuracy and efficiency losses.
H A Dmediatek,mt6316d-regulator.yaml36 regulator efficiency
37 2 - Forced Low Power mode for improved regulator efficiency, used
42 and efficiency losses.
H A Dmediatek,mt6316c-regulator.yaml37 regulator efficiency
38 2 - Forced Low Power mode for improved regulator efficiency, used
43 and efficiency losses.
H A Dmediatek,mt6316b-regulator.yaml37 regulator efficiency
38 2 - Forced Low Power mode for improved regulator efficiency, used
43 and efficiency losses.
H A Dadi,max77503-regulator.yaml15 high-efficiency buck converter. This converter has 94% efficiency
/linux/arch/arm/kernel/
H A Dtopology.c52 unsigned long efficiency; member
56 * Table of relative efficiency of each processors
57 * The efficiency value must fit in 20bit and the final
78 * Iterate all CPUs' descriptor in DT and compute the efficiency
79 * (as per table_efficiency). Also calculate a middle efficiency
128 capacity = ((be32_to_cpup(rate)) >> 20) * cpu_eff->efficiency; in parse_dt_topology()
/linux/Documentation/hwmon/
H A Dmpq8785.rst23 voltage range. It operates at high efficiency over a wide load range, and can
33 at high efficiency across a wide load range.
38 wide input supply range. The MPQ8785 operates at high efficiency over a wide
H A Dpm6764tr.rst30 maintaining the best efficiency over all loading conditions without compromising transient
/linux/tools/power/x86/x86_energy_perf_policy/
H A Dx86_energy_perf_policy.887 Set a policy with a normal balance between performance and energy efficiency.
95 accepting no performance sacrifice for the benefit of energy efficiency.
99 but allowing some performance loss to benefit energy efficiency.
107 a measurable performance impact to maximize energy efficiency.
/linux/Documentation/devicetree/bindings/power/supply/
H A Drichtek,rt9756.yaml13 The RT9756/RT9757 is a high efficiency and high charge current charger.
15 The efficiency is up to 98.2% when VBAT = 4V, IBAT = 2A in DIV2 mode and 99.1%
/linux/sound/soc/codecs/
H A DKconfig684 The Awinic AW88395 is an I2S/TDM input, high efficiency
696 The awinic AW88166 is an I2S/TDM input, high efficiency
708 The awinic AW88261 is an I2S/TDM input, high efficiency
720 The awinic AW88081 is an I2S/TDM input, high efficiency
732 sound quality, which is a new high efficiency, low
744 The awinic AW88399 is an I2S/TDM input, high efficiency
1964 high-efficiency Class-D audio amplifier.
1995 high-efficiency, four-channel class-D audio power amplifier
2081 high-efficiency mono Class-D audio power amplifiers.
2153 Enable support for Texas Instruments TAS2780 high-efficiency
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/linux/drivers/gpu/drm/amd/display/include/
H A Dlink_service_types.h54 DATA_EFFICIENCY_8b_10b_x10000 = 8000, /* 80% data efficiency */
55 DATA_EFFICIENCY_8b_10b_FEC_EFFICIENCY_x100 = 97, /* 97% data efficiency when FEC is enabled */
56 DATA_EFFICIENCY_128b_132b_x10000 = 9641, /* 96.71% data efficiency x 99.7% downspread factor */
/linux/drivers/thermal/intel/int340x_thermal/
H A Dprocessor_thermal_soc_slider.c17 * performance) to 6 (highest energy efficiency). Value of 7 is reserved.
21 * [slider value (bits 2:0) + offset] to improve power efficiency based on
126 * To enhance power efficiency dynamically, the firmware can optionally
/linux/tools/power/cpupower/man/
H A Dcpupower-set.131 performance and 15 is maximum energy efficiency.
35 energy efficiency.
/linux/Documentation/devicetree/bindings/sound/
H A Dti,tas2781.yaml102 ti,tas5827: 47-W Stereo, Digital Input, High Efficiency Closed-Loop
105 ti,tas5828: 50-W Stereo, Digital Input, High Efficiency Closed-Loop
108 ti,tas5830: 65-W Stereo, Digital Input, High Efficiency Closed-Loop
/linux/mm/
H A Dvmpressure.c232 * notified of the entire subtree's reclaim efficiency.
234 * If @tree is not set, reclaim efficiency is recorded for @memcg, and
248 * The in-kernel users only care about the reclaim efficiency in vmpressure()
294 /* For now, no users for root-level efficiency */ in vmpressure()
/linux/drivers/thermal/intel/
H A Dintel_hfi.c11 * The Hardware Feedback Interface provides a performance and energy efficiency
81 * @ee_cap: Energy efficiency capability
94 * @ee_updated: Hardware updated energy efficiency capabilities
187 * Scale performance and energy efficiency to in get_hfi_caps()
191 cpu_caps[i].efficiency = caps->ee_cap << 2; in get_hfi_caps()
/linux/Documentation/driver-api/thermal/
H A Dpower_allocator.rst249 devices. They express the relative power efficiency of different
251 efficiency. Weighting is relative such that if each cooling device
254 the same kind of compute, but with different efficiency. For example,
/linux/drivers/regulator/
H A DKconfig630 high-efficiency buck converter via I2C bus.
640 high-efficiency buck converter. Say Y here to
677 via I2C bus. MAX77857 and MAX77831 are high efficiency buck-boost
732 The MAXIM MAX8973A high-efficiency. three phase, DC-DC step-down
764 tristate "Maxim MAX20411 High-Efficiency Single Step-Down Converter"
768 This driver controls the Maxim MAX20411 family of high-efficiency,
1348 It integratas 1 channel buck controller, 3 channels high efficiency
1360 delivering 3.5A continuously at over 80% efficiency.
1522 power controller. The P1 implements 6 high-efficiency buck
/linux/drivers/platform/x86/amd/hfi/
H A DKconfig15 energy efficiency capabilities of each heterogeneous CPU core. These
/linux/Documentation/driver-api/soundwire/
H A Dbra.rst32 efficiency of the protocol by requiring multiple BRA transfers
40 (4) The BRA transport efficiency depends on the available
43 also impacts efficiency: since Column0 cannot be used for
/linux/Documentation/gpu/
H A Dafbc.rst29 maximum compression efficiency), the component order must be:
71 bad for compression efficiency, and so it's recommended to avoid

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