xref: /aosp_15_r20/frameworks/proto_logging/stats/atoms/cpu/cpu_atoms.proto (revision 64c55175f22a2714b5ba1250098ad9bbc12ec7cd) 
1/*
2 * Copyright (C) 2023 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17syntax = "proto2";
18
19package android.os.statsd.cpu;
20
21import "frameworks/proto_logging/stats/atoms.proto";
22import "frameworks/proto_logging/stats/atom_field_options.proto";
23
24option java_package = "com.android.os.cpu";
25option java_multiple_files = true;
26
27extend Atom {
28    optional CpuPolicy cpu_policy = 10199 [(module) = "framework"];
29}
30
31/**
32 * Logs information related to CPU policies such as frequency limits.
33 * This atom is pushed when scaling_max_freq_khz changes.
34 */
35message CpuPolicy {
36    // The cpufreq policy ID.
37    optional int32 policy = 1;
38
39    // To reduce power consumption, the kernel or firmware governors may lower
40    // the CPU frequency.  This is the maximum allowed frequency by the governors.
41    optional int32 scaling_max_freq_khz = 2;
42
43    // If kernel frequency scaling is enabled, this is the maximum frequency of
44    // the CPU that the governors can activate.  If kernel frequency scaling is
45    // disabled, this is the frequency that the CPU has been locked to.
46    //   scaling_max_freq_khz <= cpuinfo_max_freq_khz
47    optional int32 cpuinfo_max_freq_khz = 3;
48}