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| 1 | +# SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) |
| 2 | +# |
| 3 | +# Copyright (c) 2025 Valve Corporation. |
| 4 | +# |
| 5 | +--- |
| 6 | +name: dev-energymodel |
| 7 | + |
| 8 | +doc: | |
| 9 | + Energy model netlink interface to notify its changes. |
| 10 | +
|
| 11 | +protocol: genetlink |
| 12 | + |
| 13 | +uapi-header: linux/dev_energymodel.h |
| 14 | + |
| 15 | +definitions: |
| 16 | + - |
| 17 | + type: flags |
| 18 | + name: perf-state-flags |
| 19 | + entries: |
| 20 | + - |
| 21 | + name: perf-state-inefficient |
| 22 | + doc: >- |
| 23 | + The performance state is inefficient. There is in this perf-domain, |
| 24 | + another performance state with a higher frequency but a lower or |
| 25 | + equal power cost. |
| 26 | + - |
| 27 | + type: flags |
| 28 | + name: perf-domain-flags |
| 29 | + entries: |
| 30 | + - |
| 31 | + name: perf-domain-microwatts |
| 32 | + doc: >- |
| 33 | + The power values are in micro-Watts or some other scale. |
| 34 | + - |
| 35 | + name: perf-domain-skip-inefficiencies |
| 36 | + doc: >- |
| 37 | + Skip inefficient states when estimating energy consumption. |
| 38 | + - |
| 39 | + name: perf-domain-artificial |
| 40 | + doc: >- |
| 41 | + The power values are artificial and might be created by platform |
| 42 | + missing real power information. |
| 43 | +
|
| 44 | +attribute-sets: |
| 45 | + - |
| 46 | + name: perf-domain |
| 47 | + doc: >- |
| 48 | + Information on a single performance domains. |
| 49 | + attributes: |
| 50 | + - |
| 51 | + name: pad |
| 52 | + type: pad |
| 53 | + - |
| 54 | + name: perf-domain-id |
| 55 | + type: u32 |
| 56 | + doc: >- |
| 57 | + A unique ID number for each performance domain. |
| 58 | + - |
| 59 | + name: flags |
| 60 | + type: u64 |
| 61 | + doc: >- |
| 62 | + Bitmask of performance domain flags. |
| 63 | + enum: perf-domain-flags |
| 64 | + - |
| 65 | + name: cpus |
| 66 | + type: u64 |
| 67 | + multi-attr: true |
| 68 | + doc: >- |
| 69 | + CPUs that belong to this performance domain. |
| 70 | + - |
| 71 | + name: perf-table |
| 72 | + doc: >- |
| 73 | + Performance states table. |
| 74 | + attributes: |
| 75 | + - |
| 76 | + name: perf-domain-id |
| 77 | + type: u32 |
| 78 | + doc: >- |
| 79 | + A unique ID number for each performance domain. |
| 80 | + - |
| 81 | + name: perf-state |
| 82 | + type: nest |
| 83 | + nested-attributes: perf-state |
| 84 | + multi-attr: true |
| 85 | + - |
| 86 | + name: perf-state |
| 87 | + doc: >- |
| 88 | + Performance state of a performance domain. |
| 89 | + attributes: |
| 90 | + - |
| 91 | + name: pad |
| 92 | + type: pad |
| 93 | + - |
| 94 | + name: performance |
| 95 | + type: u64 |
| 96 | + doc: >- |
| 97 | + CPU performance (capacity) at a given frequency. |
| 98 | + - |
| 99 | + name: frequency |
| 100 | + type: u64 |
| 101 | + doc: >- |
| 102 | + The frequency in KHz, for consistency with CPUFreq. |
| 103 | + - |
| 104 | + name: power |
| 105 | + type: u64 |
| 106 | + doc: >- |
| 107 | + The power consumed at this level (by 1 CPU or by a registered |
| 108 | + device). It can be a total power: static and dynamic. |
| 109 | + - |
| 110 | + name: cost |
| 111 | + type: u64 |
| 112 | + doc: >- |
| 113 | + The cost coefficient associated with this level, used during energy |
| 114 | + calculation. Equal to: power * max_frequency / frequency. |
| 115 | + - |
| 116 | + name: flags |
| 117 | + type: u64 |
| 118 | + doc: >- |
| 119 | + Bitmask of performance state flags. |
| 120 | + enum: perf-state-flags |
| 121 | + |
| 122 | +operations: |
| 123 | + list: |
| 124 | + - |
| 125 | + name: get-perf-domains |
| 126 | + attribute-set: perf-domain |
| 127 | + doc: Get the list of information for all performance domains. |
| 128 | + do: |
| 129 | + request: |
| 130 | + attributes: |
| 131 | + - perf-domain-id |
| 132 | + reply: |
| 133 | + attributes: &perf-domain-attrs |
| 134 | + - pad |
| 135 | + - perf-domain-id |
| 136 | + - flags |
| 137 | + - cpus |
| 138 | + dump: |
| 139 | + reply: |
| 140 | + attributes: *perf-domain-attrs |
| 141 | + - |
| 142 | + name: get-perf-table |
| 143 | + attribute-set: perf-table |
| 144 | + doc: Get the energy model table of a performance domain. |
| 145 | + do: |
| 146 | + request: |
| 147 | + attributes: |
| 148 | + - perf-domain-id |
| 149 | + reply: |
| 150 | + attributes: |
| 151 | + - perf-domain-id |
| 152 | + - perf-state |
| 153 | + - |
| 154 | + name: perf-domain-created |
| 155 | + doc: A performance domain is created. |
| 156 | + notify: get-perf-table |
| 157 | + mcgrp: event |
| 158 | + - |
| 159 | + name: perf-domain-updated |
| 160 | + doc: A performance domain is updated. |
| 161 | + notify: get-perf-table |
| 162 | + mcgrp: event |
| 163 | + - |
| 164 | + name: perf-domain-deleted |
| 165 | + doc: A performance domain is deleted. |
| 166 | + attribute-set: perf-table |
| 167 | + event: |
| 168 | + attributes: |
| 169 | + - perf-domain-id |
| 170 | + mcgrp: event |
| 171 | + |
| 172 | +mcast-groups: |
| 173 | + list: |
| 174 | + - |
| 175 | + name: event |
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