1 /* 2 * Copyright 2021 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 17 #pragma once 18 19 #include <aidl/android/hardware/power/BnPowerHintSession.h> 20 #include <perfmgr/HintManager.h> 21 #include <utils/Looper.h> 22 #include <utils/Thread.h> 23 24 #include <array> 25 #include <unordered_map> 26 27 #include "AdpfTypes.h" 28 #include "AppDescriptorTrace.h" 29 #include "PowerSessionManager.h" 30 #include "SessionRecords.h" 31 32 namespace aidl { 33 namespace google { 34 namespace hardware { 35 namespace power { 36 namespace impl { 37 namespace pixel { 38 39 using aidl::android::hardware::power::BnPowerHintSession; 40 using ::android::Message; 41 using ::android::MessageHandler; 42 using ::android::sp; 43 using std::chrono::milliseconds; 44 using std::chrono::nanoseconds; 45 using std::chrono::steady_clock; 46 using std::chrono::time_point; 47 48 // The Power Hint Session is responsible for providing an 49 // interface for creating, updating, and closing power hints 50 // for a Session. Each sesion that is mapped to multiple 51 // threads (or task ids). 52 template <class HintManagerT = ::android::perfmgr::HintManager, 53 class PowerSessionManagerT = PowerSessionManager<>> 54 class PowerHintSession : public BnPowerHintSession, public Immobile { 55 public: 56 explicit PowerHintSession(int32_t tgid, int32_t uid, const std::vector<int32_t> &threadIds, 57 int64_t durationNanos, SessionTag tag); 58 ~PowerHintSession(); 59 ndk::ScopedAStatus close() override; 60 ndk::ScopedAStatus pause() override; 61 ndk::ScopedAStatus resume() override; 62 ndk::ScopedAStatus updateTargetWorkDuration(int64_t targetDurationNanos) override; 63 ndk::ScopedAStatus reportActualWorkDuration( 64 const std::vector<WorkDuration> &actualDurations) override; 65 ndk::ScopedAStatus sendHint(SessionHint hint) override; 66 ndk::ScopedAStatus setMode(SessionMode mode, bool enabled) override; 67 ndk::ScopedAStatus setThreads(const std::vector<int32_t> &threadIds) override; 68 ndk::ScopedAStatus getSessionConfig(SessionConfig *_aidl_return) override; 69 70 void dumpToStream(std::ostream &stream); 71 SessionTag getSessionTag() const; 72 73 private: 74 // In practice this lock should almost never get contested, but it's necessary for FMQ 75 std::mutex mPowerHintSessionLock; 76 bool isTimeout() REQUIRES(mPowerHintSessionLock); 77 // Is hint session for a user application 78 bool isAppSession() REQUIRES(mPowerHintSessionLock); 79 void tryToSendPowerHint(std::string hint) REQUIRES(mPowerHintSessionLock); 80 void updatePidControlVariable(int pidControlVariable, bool updateVote = true) 81 REQUIRES(mPowerHintSessionLock); 82 int64_t convertWorkDurationToBoostByPid(const std::vector<WorkDuration> &actualDurations) 83 REQUIRES(mPowerHintSessionLock); 84 bool updateHeuristicBoost() REQUIRES(mPowerHintSessionLock); 85 86 // Data 87 PowerSessionManagerT *mPSManager; 88 const int64_t mSessionId = 0; 89 const std::string mIdString; 90 std::shared_ptr<AppHintDesc> mDescriptor GUARDED_BY(mPowerHintSessionLock); 91 92 // Trace strings, this is thread safe since only assigned during construction 93 std::shared_ptr<AppDescriptorTrace> mAppDescriptorTrace; 94 time_point<steady_clock> mLastUpdatedTime GUARDED_BY(mPowerHintSessionLock); 95 bool mSessionClosed GUARDED_BY(mPowerHintSessionLock) = false; 96 // Are cpu load change related hints are supported 97 std::unordered_map<std::string, std::optional<bool>> mSupportedHints 98 GUARDED_BY(mPowerHintSessionLock); 99 // Use the value of the last enum in enum_range +1 as array size GUARDED_BY(mPowerHintSessionLock)100 std::array<bool, enum_size<SessionMode>()> mModes GUARDED_BY(mPowerHintSessionLock){}; 101 // Tag labeling what kind of session this is 102 const SessionTag mTag; 103 std::unique_ptr<SessionRecords> mSessionRecords GUARDED_BY(mPowerHintSessionLock) = nullptr; GUARDED_BY(mPowerHintSessionLock)104 bool mHeuristicBoostActive GUARDED_BY(mPowerHintSessionLock){false}; 105 }; 106 107 } // namespace pixel 108 } // namespace impl 109 } // namespace power 110 } // namespace hardware 111 } // namespace google 112 } // namespace aidl 113