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kern: kill the interrupt task manager thread

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This commit is contained in:
Michael Scire 2021-09-17 16:12:01 -07:00 • committed by SciresM
parent 29cc3d1c09
commit cb28150912
9 changed files with 112 additions and 140 deletions
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64
libraries/libmesosphere/source/kern_k_interrupt_task_manager.cpp
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@ -59,50 +59,6 @@ namespace ams::kern {
#endif
}
void KInterruptTaskManager::ThreadFunction(uintptr_t arg) {
reinterpret_cast<KInterruptTaskManager *>(arg)->ThreadFunctionImpl();
}
void KInterruptTaskManager::ThreadFunctionImpl() {
MESOSPHERE_ASSERT_THIS();
while (true) {
/* Get a task. */
KInterruptTask *task = nullptr;
{
KScopedInterruptDisable di;
task = m_task_queue.GetHead();
if (task == nullptr) {
m_thread->SetState(KThread::ThreadState_Waiting);
continue;
}
m_task_queue.Dequeue();
}
/* Do the task. */
task->DoTask();
/* Destroy any objects we may need to close. */
m_thread->DestroyClosedObjects();
}
}
void KInterruptTaskManager::Initialize() {
/* Reserve a thread from the system limit. */
MESOSPHERE_ABORT_UNLESS(Kernel::GetSystemResourceLimit().Reserve(ams::svc::LimitableResource_ThreadCountMax, 1));
/* Create and initialize the thread. */
m_thread = KThread::Create();
MESOSPHERE_ABORT_UNLESS(m_thread != nullptr);
MESOSPHERE_R_ABORT_UNLESS(KThread::InitializeHighPriorityThread(m_thread, ThreadFunction, reinterpret_cast<uintptr_t>(this)));
KThread::Register(m_thread);
/* Run the thread. */
m_thread->Run();
}
void KInterruptTaskManager::EnqueueTask(KInterruptTask *task) {
MESOSPHERE_ASSERT(!KInterruptManager::AreInterruptsEnabled());
@ -111,4 +67,24 @@ namespace ams::kern {
Kernel::GetScheduler().SetInterruptTaskRunnable();
}
void KInterruptTaskManager::DoTasks() {
/* Execute pending tasks. */
const s64 start_time = KHardwareTimer::GetTick();
for (KInterruptTask *task = m_task_queue.GetHead(); task != nullptr; task = m_task_queue.GetHead()) {
/* Dequeue the task. */
m_task_queue.Dequeue();
/* Do the task with interrupts temporarily enabled. */
{
KScopedInterruptEnable ei;
task->DoTask();
}
}
const s64 end_time = KHardwareTimer::GetTick();
/* Increment the time we've spent executing. */
m_cpu_time += end_time - start_time;
}
}