5f32222576
This is a new data provider to get state residency from fvp_stats, which is similar with DVFS data provider. But the difference is that CPU frequency table is read from cpufreq sysfs and not predefined in the config. Bug: 272642210 Bug: 267638537 Test: dumpsys android.hardware.power.stats.IPowerStats/default Change-Id: I22451b55dee5dfb0a1b36497533c2063984d5483 Signed-off-by: Darren Hsu <darrenhsu@google.com>
81 lines
2.5 KiB
C++
81 lines
2.5 KiB
C++
/*
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* Copyright (C) 2023 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "AdaptiveDvfsStateResidencyDataProvider.h"
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#include <android-base/logging.h>
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#include <android-base/parseint.h>
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#include <android-base/strings.h>
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#include <string>
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#include <utility>
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using android::base::Split;
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using android::base::Trim;
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namespace aidl {
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namespace android {
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namespace hardware {
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namespace power {
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namespace stats {
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AdaptiveDvfsStateResidencyDataProvider::AdaptiveDvfsStateResidencyDataProvider(
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std::string path,
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uint64_t clockRate,
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std::string powerEntityName,
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std::string freqPath)
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: DvfsStateResidencyDataProvider(path, clockRate, {}) {
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std::unique_ptr<FILE, decltype(&fclose)> fp(fopen(freqPath.c_str(), "r"), fclose);
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if (!fp) {
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PLOG(ERROR) << __func__ << ":Failed to open file " << freqPath;
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return;
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}
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size_t len = 0;
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char *line = nullptr;
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std::string suffix = "MHz";
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std::vector<std::pair<std::string, std::string>> states = {};
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std::vector<std::string> parts;
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std::string freqStr;
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while (getline(&line, &len, fp.get()) != -1) {
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parts = Split(line, " ");
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if (parts.size() > 0) {
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freqStr = Trim(parts[0]);
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states.push_back(std::make_pair(
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freqStr.substr(0, freqStr.length() - 3) + suffix,
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freqStr));
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}
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}
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mPowerEntities.push_back({powerEntityName, std::move(states)});
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}
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bool AdaptiveDvfsStateResidencyDataProvider::getStateResidencies(
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std::unordered_map<std::string, std::vector<StateResidency>> *residencies) {
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return DvfsStateResidencyDataProvider::getStateResidencies(residencies);
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}
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std::unordered_map<std::string, std::vector<State>>
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AdaptiveDvfsStateResidencyDataProvider::getInfo() {
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return DvfsStateResidencyDataProvider::getInfo();
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}
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} // namespace stats
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} // namespace power
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} // namespace hardware
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} // namespace android
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} // namespace aidl
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