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sm6375-common: power-libperfmgr: ADPF: make uclamp.min stable

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Considering the previous uclamp.min value is the base of PID output.
Instead of:
  `next_min = std::min(sUclampMinHighLimit, output);`
We should use:
  `next_min = std::min(sUclampMinHighLimit, current_min + output);`

When session status entered stale state, set the uclamp to 0, but keep
the current_min. That would be helpful for boosting the heavy workload
of the first few frames.

Bug: 204444691
Test: build && manual test

Change-Id: Idb19e2bfd8e9522fae5fd452b1fcc58786e96e65
This commit is contained in:
Jimmy Shiu 2024-07-18 12:56:42 +05:30 • committed by Anand S
commit c69f1e93fa
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GPG key ID: 3B2983FA448B3D61
2 changed files with 66 additions and 59 deletions
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4
power-libperfmgr/PowerHintSession.h
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@ -59,6 +59,7 @@ struct AppHintDesc {
const std::vector<int> threadIds;
nanoseconds duration;
int current_min;
int transitioanl_min;
// status
std::atomic<bool> is_active;
// pid
@ -81,6 +82,7 @@ class PowerHintSession : public BnPowerHintSession {
bool isActive();
bool isStale();
const std::vector<int> &getTidList() const;
int restoreUclamp();
private:
class StaleHandler : public MessageHandler {
@ -106,7 +108,7 @@ class PowerHintSession : public BnPowerHintSession {
private:
void setStale();
void updateUniveralBoostMode();
int setUclamp(int32_t min, int32_t max = kMaxUclampValue);
int setUclamp(int32_t min, bool update = true);
std::string getIdString() const;
AppHintDesc *mDescriptor = nullptr;
sp<StaleHandler> mStaleHandler;