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kernel/thread: Deduplicate scheduler switching code
The code in both places was the same verbatim, so we can extract it to a function to deduplicate the logic.
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@ -142,36 +142,7 @@ void Thread::ResumeFromWait() {
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status = ThreadStatus::Ready;
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std::optional<s32> new_processor_id = GetNextProcessorId(affinity_mask);
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if (!new_processor_id) {
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new_processor_id = processor_id;
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}
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if (ideal_core != -1 &&
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Core::System::GetInstance().Scheduler(ideal_core).GetCurrentThread() == nullptr) {
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new_processor_id = ideal_core;
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}
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ASSERT(*new_processor_id < 4);
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// Add thread to new core's scheduler
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auto* next_scheduler = &Core::System::GetInstance().Scheduler(*new_processor_id);
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if (*new_processor_id != processor_id) {
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// Remove thread from previous core's scheduler
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scheduler->RemoveThread(this);
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next_scheduler->AddThread(this, current_priority);
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}
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processor_id = *new_processor_id;
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// If the thread was ready, unschedule from the previous core and schedule on the new core
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scheduler->UnscheduleThread(this, current_priority);
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next_scheduler->ScheduleThread(this, current_priority);
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// Change thread's scheduler
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scheduler = next_scheduler;
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Core::System::GetInstance().CpuCore(processor_id).PrepareReschedule();
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ChangeScheduler();
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}
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/**
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@ -364,42 +335,45 @@ void Thread::UpdatePriority() {
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void Thread::ChangeCore(u32 core, u64 mask) {
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ideal_core = core;
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affinity_mask = mask;
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ChangeScheduler();
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}
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void Thread::ChangeScheduler() {
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if (status != ThreadStatus::Ready) {
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return;
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}
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auto& system = Core::System::GetInstance();
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std::optional<s32> new_processor_id{GetNextProcessorId(affinity_mask)};
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if (!new_processor_id) {
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new_processor_id = processor_id;
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}
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if (ideal_core != -1 &&
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Core::System::GetInstance().Scheduler(ideal_core).GetCurrentThread() == nullptr) {
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if (ideal_core != -1 && system.Scheduler(ideal_core).GetCurrentThread() == nullptr) {
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new_processor_id = ideal_core;
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}
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ASSERT(*new_processor_id < 4);
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// Add thread to new core's scheduler
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auto* next_scheduler = &Core::System::GetInstance().Scheduler(*new_processor_id);
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auto& next_scheduler = system.Scheduler(*new_processor_id);
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if (*new_processor_id != processor_id) {
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// Remove thread from previous core's scheduler
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scheduler->RemoveThread(this);
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next_scheduler->AddThread(this, current_priority);
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next_scheduler.AddThread(this, current_priority);
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}
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processor_id = *new_processor_id;
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// If the thread was ready, unschedule from the previous core and schedule on the new core
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scheduler->UnscheduleThread(this, current_priority);
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next_scheduler->ScheduleThread(this, current_priority);
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next_scheduler.ScheduleThread(this, current_priority);
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// Change thread's scheduler
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scheduler = next_scheduler;
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scheduler = &next_scheduler;
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Core::System::GetInstance().CpuCore(processor_id).PrepareReschedule();
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system.CpuCore(processor_id).PrepareReschedule();
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}
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bool Thread::AllWaitObjectsReady() {
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@ -374,6 +374,8 @@ private:
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explicit Thread(KernelCore& kernel);
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~Thread() override;
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void ChangeScheduler();
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Core::ARM_Interface::ThreadContext context{};
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u32 thread_id = 0;
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