| /* |
| * Copyright (C) 2017 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 specic language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef ANDROID_LIBPERFMGR_HINTMANAGER_H_ |
| #define ANDROID_LIBPERFMGR_HINTMANAGER_H_ |
| |
| #include <android-base/thread_annotations.h> |
| |
| #include <atomic> |
| #include <cstddef> |
| #include <cstdint> |
| #include <memory> |
| #include <mutex> |
| #include <set> |
| #include <string> |
| #include <unordered_map> |
| #include <utility> |
| #include <vector> |
| |
| #include "perfmgr/AdpfConfig.h" |
| #include "perfmgr/NodeLooperThread.h" |
| |
| namespace android { |
| namespace perfmgr { |
| |
| struct HintStats { |
| HintStats() : count(0), duration_ms(0) {} |
| uint32_t count; |
| uint64_t duration_ms; |
| }; |
| |
| struct HintStatus { |
| const std::chrono::milliseconds max_timeout; |
| HintStatus() : max_timeout(std::chrono::milliseconds(0)) {} |
| explicit HintStatus(std::chrono::milliseconds max_timeout) |
| : max_timeout(max_timeout), |
| start_time(std::chrono::steady_clock::time_point::min()), |
| end_time(std::chrono::steady_clock::time_point::min()) {} |
| std::chrono::steady_clock::time_point start_time; |
| std::chrono::steady_clock::time_point end_time; |
| struct HintStatsInternal { |
| HintStatsInternal() : count(0), duration_ms(0) {} |
| std::atomic<uint32_t> count; |
| std::atomic<uint64_t> duration_ms; |
| } stats; |
| }; |
| |
| enum class HintActionType { Node, DoHint, EndHint, MaskHint }; |
| |
| struct HintAction { |
| HintAction(HintActionType t, const std::string &v, const std::string &p) |
| : type(t), value(v), enable_property(p) {} |
| HintActionType type; |
| std::string value; |
| std::string enable_property; |
| }; |
| |
| struct Hint { |
| Hint() {} |
| Hint(const Hint &obj) |
| : node_actions(obj.node_actions), |
| hint_actions(obj.hint_actions), |
| mask_requesters(obj.mask_requesters), |
| status(obj.status) {} |
| std::vector<NodeAction> node_actions; |
| std::vector<HintAction> hint_actions; |
| mutable std::mutex hint_lock; |
| std::set<std::string> mask_requesters GUARDED_BY(hint_lock); |
| std::shared_ptr<HintStatus> status GUARDED_BY(hint_lock); |
| }; |
| |
| // HintManager is the external interface of the library to be used by PowerHAL |
| // to do power hints with sysfs nodes. HintManager maintains a representation of |
| // the actions that are parsed from the configuration file as a mapping from a |
| // PowerHint to the set of actions that are performed for that PowerHint. |
| class HintManager { |
| public: |
| HintManager(sp<NodeLooperThread> nm, const std::unordered_map<std::string, Hint> &actions, |
| const std::vector<std::shared_ptr<AdpfConfig>> &adpfs) |
| : nm_(std::move(nm)), actions_(actions), adpfs_(adpfs), adpf_index_(0) {} |
| ~HintManager() { |
| if (nm_.get() != nullptr) nm_->Stop(); |
| } |
| |
| // Return true if the sysfs manager thread is running. |
| bool IsRunning() const; |
| |
| // Do hint based on hint_type which defined as PowerHint in the actions |
| // section of the JSON config. Return true with valid hint_type and also |
| // NodeLooperThread::Request succeeds; otherwise return false. |
| bool DoHint(const std::string& hint_type); |
| |
| // Do hint with the override time for all actions defined for the given |
| // hint_type. Return true with valid hint_type and also |
| // NodeLooperThread::Request succeeds; otherwise return false. |
| bool DoHint(const std::string& hint_type, |
| std::chrono::milliseconds timeout_ms_override); |
| |
| // End hint early. Return true with valid hint_type and also |
| // NodeLooperThread::Cancel succeeds; otherwise return false. |
| bool EndHint(const std::string& hint_type); |
| |
| // Query if given hint supported. |
| bool IsHintSupported(const std::string& hint_type) const; |
| |
| // Query if given hint enabled. |
| bool IsHintEnabled(const std::string &hint_type) const; |
| |
| // set ADPF config by profile name. |
| bool SetAdpfProfile(const std::string &profile_name); |
| |
| // get current ADPF. |
| std::shared_ptr<AdpfConfig> GetAdpfProfile() const; |
| |
| // Query if given AdpfProfile supported. |
| bool IsAdpfProfileSupported(const std::string &name) const; |
| |
| // Static method to construct HintManager from the JSON config file. |
| static std::unique_ptr<HintManager> GetFromJSON( |
| const std::string& config_path, bool start = true); |
| |
| // Return available hints managed by HintManager |
| std::vector<std::string> GetHints() const; |
| |
| // Return stats of hints managed by HintManager |
| HintStats GetHintStats(const std::string &hint_type) const; |
| |
| // Dump internal status to fd |
| void DumpToFd(int fd); |
| |
| // Start thread loop |
| bool Start(); |
| |
| // Singleton |
| static std::shared_ptr<HintManager> GetInstance(); |
| static std::shared_ptr<HintManager> Reload(bool start); |
| |
| protected: |
| static std::vector<std::unique_ptr<Node>> ParseNodes( |
| const std::string& json_doc); |
| static std::unordered_map<std::string, Hint> ParseActions( |
| const std::string &json_doc, const std::vector<std::unique_ptr<Node>> &nodes); |
| static std::vector<std::shared_ptr<AdpfConfig>> ParseAdpfConfigs(const std::string &json_doc); |
| static bool InitHintStatus(const std::unique_ptr<HintManager> &hm); |
| |
| private: |
| HintManager(HintManager const&) = delete; |
| void operator=(HintManager const&) = delete; |
| static std::shared_ptr<HintManager> mInstance; |
| |
| bool ValidateHint(const std::string& hint_type) const; |
| // Helper function to update the HintStatus when DoHint |
| void DoHintStatus(const std::string &hint_type, std::chrono::milliseconds timeout_ms); |
| // Helper function to update the HintStatus when EndHint |
| void EndHintStatus(const std::string &hint_type); |
| // Helper function to take hint actions when DoHint |
| void DoHintAction(const std::string &hint_type); |
| // Helper function to take hint actions when EndHint |
| void EndHintAction(const std::string &hint_type); |
| sp<NodeLooperThread> nm_; |
| std::unordered_map<std::string, Hint> actions_; |
| std::vector<std::shared_ptr<AdpfConfig>> adpfs_; |
| uint32_t adpf_index_; |
| }; |
| |
| } // namespace perfmgr |
| } // namespace android |
| |
| #endif // ANDROID_LIBPERFMGR_HINTMANAGER_H_ |