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authorFernando Sahmkow <fsahmkow27@gmail.com>2020-03-10 16:50:33 +0100
committerFernando Sahmkow <fsahmkow27@gmail.com>2020-06-27 17:35:43 +0200
commita439cdf22ea50f0e39cb51f6dff15fee3b495d16 (patch)
tree2c88310d7cca08ef451107d9ae6bd5191e7d72e5 /src/core/hle/kernel
parentSynchronization: Correct wide Assertion. (diff)
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Diffstat (limited to 'src/core/hle/kernel')
-rw-r--r--src/core/hle/kernel/scheduler.cpp42
-rw-r--r--src/core/hle/kernel/scheduler.h10
2 files changed, 52 insertions, 0 deletions
diff --git a/src/core/hle/kernel/scheduler.cpp b/src/core/hle/kernel/scheduler.cpp
index d68d86cdf..00322d997 100644
--- a/src/core/hle/kernel/scheduler.cpp
+++ b/src/core/hle/kernel/scheduler.cpp
@@ -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();
diff --git a/src/core/hle/kernel/scheduler.h b/src/core/hle/kernel/scheduler.h
index 5e062bf59..f63cc5085 100644
--- a/src/core/hle/kernel/scheduler.h
+++ b/src/core/hle/kernel/scheduler.h
@@ -210,6 +210,12 @@ public:
/// Reschedules to the next available thread (call after current thread is suspended)
void TryDoContextSwitch();
+ /// The next two are for SingleCore Only.
+ /// Unload current thread before preempting core.
+ void Unload();
+ /// Reload current thread after core preemption.
+ void Reload();
+
/// Gets the current running thread
Thread* GetCurrentThread() const;
@@ -230,6 +236,10 @@ public:
void OnThreadStart();
+ std::shared_ptr<Common::Fiber> ControlContext() {
+ return switch_fiber;
+ }
+
private:
friend class GlobalScheduler;