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/linux-6.1.9/Documentation/translations/zh_CN/power/
Dopp.rst11 操作性能值(OPP)库
19 2. OPP链表初始注册
20 3. OPP搜索函数
21 4. OPP可用性控制函数
22 5. OPP数据检索函数
28 1.1 何为操作性能值(OPP)?
43 我们能将它们表示为3个OPP,如下述{Hz, uV}元组(译注:频率的单位是赫兹,电压的单位是
53 OPP库提供了一组辅助函数来组织和查询OPP信息。该库位于drivers/opp/目录下,其头文件
54 位于include/linux/pm_opp.h中。OPP库可以通过开启CONFIG_PM_OPP来启用。某些SoC,
55 如德州仪器的OMAP框架允许在不需要cpufreq的情况下可选地在某一OPP下启动。
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/linux-6.1.9/Documentation/power/
Dopp.rst2 Operating Performance Points (OPP) Library
10 2. Initial OPP List Registration
11 3. OPP Search Functions
12 4. OPP Availability Control Functions
13 5. OPP Data Retrieval Functions
19 1.1 What is an Operating Performance Point (OPP)?
48 OPP library provides a set of helper functions to organize and query the OPP
50 is located in include/linux/pm_opp.h. OPP library can be enabled by enabling
52 Instrument's OMAP framework allows to optionally boot at a certain OPP without
55 Typical usage of the OPP library is as follows::
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/linux-6.1.9/Documentation/translations/zh_CN/scheduler/
Dsched-energy.rst135 每个性能域有三个操作性能值(OPP)。与每个OPP相关的CPU算力和功率成本列在能量
154 Current OPP: ===== Other OPP: - - - util_avg (100 each): ##
218 大核节能。举例来说,对于某些系统,小核的高OPP可能比大核的低OPP能量消耗更高。因此,
222 即使在大核所有OPP都不如小核OPP节能的情况下,在某些特定条件下,令小任务运行在大核
223 上依然可能节能。事实上,将一个任务放在一个小核上可能导致整个性能域的OPP提高,这将
225 成本可能比放在小核上更高,但这不会影响小核上的其它任务,这些任务将继续以较低的OPP
227 其它运行在小核的任务提高OPP的成本。
230 系统所有CPU每个不同OPP的运行成本时,也无法得到正确的结果。得益于基于EM的设计,
304 其中:Nd是性能域的数量;Nc是CPU的数量;Ns是OPP的总数(例如:对于两个性能域,
305 每个域有4个OPP,则Ns = 8)。
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/linux-6.1.9/Documentation/devicetree/bindings/opp/
Dopp-v2-base.yaml7 title: Generic OPP (Operating Performance Points) Common Binding
29 Indicates that device nodes using this OPP Table Node's phandle switch
32 lines, but they share OPP tables.
39 One or more OPP nodes describing voltage-current-frequency combinations.
41 OPP. These are mandatory except for the case where the OPP table is
50 property to uniquely identify the OPP nodes exists. Devices like power
54 array of frequencies. The OPP binding doesn't provide any provisions
65 Voltage for the OPP
72 by angular brackets <>. The OPP binding doesn't provide any provisions to
93 the OPP.
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Dti-omap5-opp-supply.txt1 Texas Instruments OMAP compatible OPP supply description
7 an OPP transitions.
11 to the vdd-supply and clk when making an OPP transition. By supplying two
12 regulators to the device that will undergo OPP transitions we can make use
13 of the multi regulator binding that is part of the OPP core described here [1]
25 "ti,omap-opp-supply" - basic OPP supply controlling VDD and VBB
34 volt: voltage in uV - reference voltage (OPP voltage)
36 - ti,absolute-max-voltage-uv: absolute maximum voltage for the OPP supply.
52 /* OMAP OPP Supply with Class0 registers */
Dopp-v2-qcom-level.yaml7 title: Qualcomm OPP bindings to describe OPP nodes.
30 this OPP node. Sometimes several corners/levels shares a certain fuse
Dopp-v2-kryo-cpu.yaml7 title: Qualcomm Technologies, Inc. NVMEM OPP bindings
17 the CPU frequencies subset and voltage value of each OPP varies based on
23 the OPP framework with required information (existing HW bitmap).
24 This is used to determine the voltage and frequency value for each OPP of
25 operating-points-v2 table when it is parsed by the OPP framework.
Dopp-v1.yaml7 title: Generic OPP (Operating Performance Points) v1 Bindings
29 - description: Voltage for OPP in uV
Dallwinner,sun50i-h6-operating-points.yaml7 title: Allwinner H6 CPU OPP
15 OPP varies based on the silicon variant in use. Allwinner Process
19 provide the OPP framework with required information.
/linux-6.1.9/Documentation/devicetree/bindings/power/
Dpower_domain.txt54 - required-opps: This contains phandle to an OPP node in another device's OPP
56 OPP of a different device. It should not contain multiple phandles to the OPP
57 nodes in the same OPP table. This specifies the minimum required OPP of the
58 device(s), whose OPP's phandle is present in this property, for the
59 functioning of the current device at the current OPP (where this property is
63 - OPP table for domain provider that provides two domains.
Dqcom,rpmpd.yaml67 // Example 1 (rpmh power domain controller and OPP table):
123 // Example 2 (rpm power domain controller and OPP table):
161 // Example 3 (Client/Consumer device using OPP table):
/linux-6.1.9/Documentation/translations/zh_CN/cpu-freq/
Dcore.rst28 3. 含有Operating Performance Point (OPP)的CPUFreq表的生成
81 3. 含有Operating Performance Point (OPP)的CPUFreq表的生成
83 关于OPP的细节请参阅 Documentation/power/opp.rst
86 这个函数提供了一个随时可用的转换例程,用来将OPP层关于可用频率的内部信息翻译成一种
/linux-6.1.9/Documentation/translations/zh_TW/cpu-freq/
Dcore.rst26 3. 含有Operating Performance Point (OPP)的CPUFreq表的生成
79 3. 含有Operating Performance Point (OPP)的CPUFreq表的生成
81 關於OPP的細節請參閱 Documentation/power/opp.rst
84 這個功能提供了一個隨時可用的轉換程序,用來將OPP層關於可用頻率的內部信息翻譯成一種容易提供給
/linux-6.1.9/Documentation/driver-api/thermal/
Dcpu-idle-cooling.rst25 because of the OPP density, we can only choose an OPP with a power
27 losing performance. In other words, one OPP under-utilizes the CPU
28 with a power less than the requested power budget and the next OPP
29 exceeds the power budget. An intermediate OPP could have been used if
41 The Operating Performance Point (OPP) density has a great influence on
43 plethora of OPP density, and some have large power gap between OPPs,
47 At a specific OPP, we can assume that injecting idle cycle on all CPUs
52 relation with the OPP’s sustainable power and can be computed with a
55 Power(IdleCycle) = Coef x Power(OPP)
151 because we don’t want to change the OPP. We can group the
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/linux-6.1.9/drivers/opp/
DKconfig8 is called Operating Performance Point or OPP. The actual definitions
9 of OPP varies over silicon within the same family of devices.
11 OPP layer organizes the data internally using device pointers
/linux-6.1.9/Documentation/devicetree/bindings/cpufreq/
Dti-cpufreq.txt1 TI CPUFreq and OPP bindings
7 provide the OPP framework with supported hardware information. This is
9 when it is parsed by the OPP framework.
30 1. Which revision of the SoC the OPP is supported by
31 2. Which eFuse bits indicate this OPP is available
34 matches, the OPP gets enabled.
Dimx-cpufreq-dt.txt1 i.MX CPUFreq-DT OPP bindings
6 the opp-supported-hw values for each OPP to check if the OPP is allowed.
/linux-6.1.9/drivers/devfreq/
DKconfig26 When OPP is used with the devfreq device, it is recommended to
27 register devfreq's nb to the OPP's notifier head. If OPP is
28 used with the devfreq device, you may use OPP helper
75 devfreq device uses the OPP table to get the frequency/voltage.
91 and adjusts the operating frequencies and voltages with OPP support.
121 operating frequencies and voltages with OPP support.
/linux-6.1.9/Documentation/cpu-freq/
Dcore.rst17 3. CPUFreq Table Generation with Operating Performance Point (OPP)
83 3. CPUFreq Table Generation with Operating Performance Point (OPP)
85 For details about OPP, see Documentation/power/opp.rst
89 the OPP layer's internal information about the available frequencies
/linux-6.1.9/Documentation/arm/omap/
Domap_pm.rst118 DSPBridge expresses target DSP performance levels in terms of OPP IDs.
137 Customizing OPP for platform
139 Defining CONFIG_PM should enable OPP layer for the silicon
140 and the registration of OPP table should take place automatically.
141 However, in special cases, the default OPP table may need to be
146 * Disable an unsupported OPP on the platform
/linux-6.1.9/arch/arm/mach-davinci/
Dda850.c416 #define OPP(freq) \ macro
423 OPP(456),
424 OPP(408),
425 OPP(372),
426 OPP(300),
427 OPP(200),
428 OPP(96),
/linux-6.1.9/Documentation/gpu/amdgpu/display/
Ddcn-overview.rst26 * **Output Pixel Processing (OPP)**: Process and format pixels to be sent to
60 OPP. It is DC's responsibility to drive the best configuration for each
95 * OPP
99 OPP and OPTC are two joining blocks between FE and BE. On a side note, this is
118 this floating-point format from DPP to OPP.
120 Starting OPP, because color transformation and blending have been completed
123 depth format), bit-depth reduction/dithering would kick in. In OPP, we would
155 MPCC: OPP DPP ...
174 MPCC: OPP DPP ...
/linux-6.1.9/Documentation/translations/zh_CN/core-api/
Dassoc_array.rst180 ``index_key`` 参数应持有索引键信息,并在调用OPP表中的方法时传递给它们。
197 ``index_key`` 参数应持有索引键信息,并在调用OPP表中的方法时传递给它们。
/linux-6.1.9/arch/arm64/boot/dts/amlogic/
Dmeson-gxl-s805x.dtsi13 /* The S805X Package doesn't seem to handle the 744MHz OPP correctly */
/linux-6.1.9/Documentation/devicetree/bindings/power/avs/
Dqcom,cpr.yaml14 or other device. Each OPP of a device corresponds to a "corner" that has
50 A phandle to the OPP table containing the performance states

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