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CPU_Manager: Unload/Reload threads on preemption on SingleCore

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This commit is contained in:
Fernando Sahmkow
2020-03-10 11:50:33 -04:00
parent 8a78fc2580
commit a439cdf22e
4 changed files with 64 additions and 7 deletions
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42
src/core/hle/kernel/scheduler.cpp
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@ -602,6 +602,48 @@ void Scheduler::OnThreadStart() {
SwitchContextStep2();
}
void Scheduler::Unload() {
Thread* thread = current_thread.get();
if (thread) {
thread->last_running_ticks = system.CoreTiming().GetCPUTicks();
thread->SetIsRunning(false);
if (!thread->IsHLEThread()) {
auto& cpu_core = system.ArmInterface(core_id);
cpu_core.SaveContext(thread->GetContext32());
cpu_core.SaveContext(thread->GetContext64());
// Save the TPIDR_EL0 system register in case it was modified.
thread->SetTPIDR_EL0(cpu_core.GetTPIDR_EL0());
cpu_core.ClearExclusiveState();
}
thread->context_guard.unlock();
}
}
void Scheduler::Reload() {
Thread* thread = current_thread.get();
if (thread) {
ASSERT_MSG(thread->GetSchedulingStatus() == ThreadSchedStatus::Runnable,
"Thread must be runnable.");
// Cancel any outstanding wakeup events for this thread
thread->SetIsRunning(true);
thread->last_running_ticks = system.CoreTiming().GetCPUTicks();
auto* const thread_owner_process = thread->GetOwnerProcess();
if (thread_owner_process != nullptr) {
system.Kernel().MakeCurrentProcess(thread_owner_process);
}
if (!thread->IsHLEThread()) {
auto& cpu_core = system.ArmInterface(core_id);
cpu_core.LoadContext(thread->GetContext32());
cpu_core.LoadContext(thread->GetContext64());
cpu_core.SetTlsAddress(thread->GetTLSAddress());
cpu_core.SetTPIDR_EL0(thread->GetTPIDR_EL0());
cpu_core.ClearExclusiveState();
}
}
}
void Scheduler::SwitchContextStep2() {
Thread* previous_thread = current_thread_prev.get();
Thread* new_thread = selected_thread.get();