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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.
This commit is contained in:
Lioncash 2018-11-13 23:58:41 -05:00
parent 65bd03d74c
commit f9db75fe40
2 changed files with 13 additions and 37 deletions
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48
src/core/hle/kernel/thread.cpp
View File

@ -142,36 +142,7 @@ void Thread::ResumeFromWait() {
status = ThreadStatus::Ready; status = ThreadStatus::Ready;
std::optional<s32> new_processor_id = GetNextProcessorId(affinity_mask); ChangeScheduler();
if (!new_processor_id) {
new_processor_id = processor_id;
}
if (ideal_core != -1 &&
Core::System::GetInstance().Scheduler(ideal_core).GetCurrentThread() == nullptr) {
new_processor_id = ideal_core;
}
ASSERT(*new_processor_id < 4);
// Add thread to new core's scheduler
auto* next_scheduler = &Core::System::GetInstance().Scheduler(*new_processor_id);
if (*new_processor_id != processor_id) {
// Remove thread from previous core's scheduler
scheduler->RemoveThread(this);
next_scheduler->AddThread(this, current_priority);
}
processor_id = *new_processor_id;
// If the thread was ready, unschedule from the previous core and schedule on the new core
scheduler->UnscheduleThread(this, current_priority);
next_scheduler->ScheduleThread(this, current_priority);
// Change thread's scheduler
scheduler = next_scheduler;
Core::System::GetInstance().CpuCore(processor_id).PrepareReschedule();
} }
/** /**
@ -364,42 +335,45 @@ void Thread::UpdatePriority() {
void Thread::ChangeCore(u32 core, u64 mask) { void Thread::ChangeCore(u32 core, u64 mask) {
ideal_core = core; ideal_core = core;
affinity_mask = mask; affinity_mask = mask;
ChangeScheduler();
}
void Thread::ChangeScheduler() {
if (status != ThreadStatus::Ready) { if (status != ThreadStatus::Ready) {
return; return;
} }
auto& system = Core::System::GetInstance();
std::optional<s32> new_processor_id{GetNextProcessorId(affinity_mask)}; std::optional<s32> new_processor_id{GetNextProcessorId(affinity_mask)};
if (!new_processor_id) { if (!new_processor_id) {
new_processor_id = processor_id; new_processor_id = processor_id;
} }
if (ideal_core != -1 && if (ideal_core != -1 && system.Scheduler(ideal_core).GetCurrentThread() == nullptr) {
Core::System::GetInstance().Scheduler(ideal_core).GetCurrentThread() == nullptr) {
new_processor_id = ideal_core; new_processor_id = ideal_core;
} }
ASSERT(*new_processor_id < 4); ASSERT(*new_processor_id < 4);
// Add thread to new core's scheduler // Add thread to new core's scheduler
auto* next_scheduler = &Core::System::GetInstance().Scheduler(*new_processor_id); auto& next_scheduler = system.Scheduler(*new_processor_id);
if (*new_processor_id != processor_id) { if (*new_processor_id != processor_id) {
// Remove thread from previous core's scheduler // Remove thread from previous core's scheduler
scheduler->RemoveThread(this); scheduler->RemoveThread(this);
next_scheduler->AddThread(this, current_priority); next_scheduler.AddThread(this, current_priority);
} }
processor_id = *new_processor_id; processor_id = *new_processor_id;
// If the thread was ready, unschedule from the previous core and schedule on the new core // If the thread was ready, unschedule from the previous core and schedule on the new core
scheduler->UnscheduleThread(this, current_priority); scheduler->UnscheduleThread(this, current_priority);
next_scheduler->ScheduleThread(this, current_priority); next_scheduler.ScheduleThread(this, current_priority);
// Change thread's scheduler // Change thread's scheduler
scheduler = next_scheduler; scheduler = &next_scheduler;
Core::System::GetInstance().CpuCore(processor_id).PrepareReschedule(); system.CpuCore(processor_id).PrepareReschedule();
} }
bool Thread::AllWaitObjectsReady() { bool Thread::AllWaitObjectsReady() {

2
src/core/hle/kernel/thread.h
View File

@ -374,6 +374,8 @@ private:
explicit Thread(KernelCore& kernel); explicit Thread(KernelCore& kernel);
~Thread() override; ~Thread() override;
void ChangeScheduler();
Core::ARM_Interface::ThreadContext context{}; Core::ARM_Interface::ThreadContext context{};
u32 thread_id = 0; u32 thread_id = 0;