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/*
* Copyright (C) 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "libpixelpowerstats"
#include "GpuStateResidencyDataProvider.h"
#include <android-base/logging.h>
#include <fstream>
#include <sstream>
namespace android {
namespace hardware {
namespace google {
namespace pixel {
namespace powerstats {
GpuStateResidencyDataProvider::GpuStateResidencyDataProvider(uint32_t id)
: mPowerEntityId(id), mActiveId(0) /* (TODO (b/117228832): enable this) , mSuspendId(1) */ {}
bool GpuStateResidencyDataProvider::getTotalTime(const std::string &path, uint64_t &totalTimeMs) {
std::ifstream inFile(path, std::ifstream::in);
if (!inFile.is_open()) {
PLOG(ERROR) << __func__ << ":Failed to open file " << path;
return false;
}
std::string line;
std::getline(inFile, line);
std::istringstream lineStream(line, std::istringstream::in);
totalTimeMs = 0;
uint64_t curTimeMs = 0;
while (lineStream >> curTimeMs) {
totalTimeMs += curTimeMs;
}
return true;
}
bool GpuStateResidencyDataProvider::getResults(
std::unordered_map<uint32_t, PowerEntityStateResidencyResult> &results) {
uint64_t totalActiveTimeUs = 0;
if (!getTotalTime("/sys/class/kgsl/kgsl-3d0/gpu_clock_stats", totalActiveTimeUs)) {
LOG(ERROR) << __func__ << "Failed to get results for GPU:Active";
return false;
}
/* (TODO (b/117228832): enable this)
uint64_t totalSuspendTimeMs = 0;
if (!getTotalTime("/sys/class/kgsl/kgsl-3d0/devfreq/suspend_time", totalSuspendTimeMs)) {
LOG(ERROR) << __func__ << "Failed to get results for GPU:Suspend";
return false;
}
*/
PowerEntityStateResidencyResult result = {
.powerEntityId = mPowerEntityId,
.stateResidencyData = {
{.powerEntityStateId = mActiveId, .totalTimeInStateMs = totalActiveTimeUs / 1000},
/* (TODO (b/117228832): enable this)
{.powerEntityStateId = mSuspendId, .totalTimeInStateMs = totalSuspendTimeMs},
*/
}};
results.emplace(std::make_pair(mPowerEntityId, result));
return true;
}
std::vector<PowerEntityStateSpace> GpuStateResidencyDataProvider::getStateSpaces() {
return {{.powerEntityId = mPowerEntityId,
.states = {
{.powerEntityStateId = mActiveId, .powerEntityStateName = "Active"},
/* (TODO (b/117228832): enable this)
{.powerEntityStateId = mSuspendId, .powerEntityStateName = "Suspend"}
*/
}}};
}
} // namespace powerstats
} // namespace pixel
} // namespace google
} // namespace hardware
} // namespace android