ADPF: support sending power hint

Send a hint only when the system can support the hint.

Bug: 243025173
Test: PtsUiBench & CUJ
Change-Id: If56d0c22f8dd61f5fe27ba79f08f2963269abe41
Merged-In: If56d0c22f8dd61f5fe27ba79f08f2963269abe41

2 files changed, 13 insertions, 0 deletions

diff --git a/power-libperfmgr/aidl/PowerHintSession.cpp b/power-libperfmgr/aidl/PowerHintSession.cpp
index 14cbf01..0b10bf3 100644
--- a/power-libperfmgr/aidl/PowerHintSession.cpp
+++ b/power-libperfmgr/aidl/PowerHintSession.cpp
@@ -191,6 +191,15 @@ void PowerHintSession::updateUniveralBoostMode() {
     }
 }
 
+void PowerHintSession::tryToSendPowerHint(std::string hint) {
+    if (!mSupportedHints[hint].has_value()) {
+        mSupportedHints[hint] = HintManager::GetInstance()->IsHintSupported(hint);
+    }
+    if (mSupportedHints[hint].value()) {
+        HintManager::GetInstance()->DoHint(hint);
+    }
+}
+
 int PowerHintSession::setSessionUclampMin(int32_t min) {
     {
         std::lock_guard<std::mutex> guard(mSessionLock);
diff --git a/power-libperfmgr/aidl/PowerHintSession.h b/power-libperfmgr/aidl/PowerHintSession.h
index 9bd9a2c..604f6e2 100644
--- a/power-libperfmgr/aidl/PowerHintSession.h
+++ b/power-libperfmgr/aidl/PowerHintSession.h
@@ -132,6 +132,7 @@ class PowerHintSession : public BnPowerHintSession {
   private:
     void updateUniveralBoostMode();
     int setSessionUclampMin(int32_t min);
+    void tryToSendPowerHint(std::string hint);
     std::string getIdString() const;
     const std::shared_ptr<AdaptiveCpu> mAdaptiveCpu;
     AppHintDesc *mDescriptor = nullptr;
@@ -145,6 +146,9 @@ class PowerHintSession : public BnPowerHintSession {
     int64_t mLastStartedTimeNs;
     int64_t mLastDurationNs;
     int64_t mWorkPeriodNs;
+
+    // To cache the status of whether ADPF hints are supported.
+    std::unordered_map<std::string, std::optional<bool>> mSupportedHints;
 };
 
 }  // namespace pixel