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kernel: use KScheduler from mesosphere

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This commit is contained in:
Liam 2022-06-26 18:52:16 -04:00
parent 53fb4a78a3
commit 0624c880bd
12 changed files with 572 additions and 611 deletions
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169
src/core/cpu_manager.cpp
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@ -8,6 +8,7 @@
#include "core/core.h"
#include "core/core_timing.h"
#include "core/cpu_manager.h"
#include "core/hle/kernel/k_interrupt_manager.h"
#include "core/hle/kernel/k_scheduler.h"
#include "core/hle/kernel/k_thread.h"
#include "core/hle/kernel/kernel.h"
@ -41,6 +42,14 @@ void CpuManager::Shutdown() {
}
}
void CpuManager::GuestActivateFunction() {
if (is_multicore) {
MultiCoreGuestActivate();
} else {
SingleCoreGuestActivate();
}
}
void CpuManager::GuestThreadFunction() {
if (is_multicore) {
MultiCoreRunGuestThread();
@ -49,36 +58,49 @@ void CpuManager::GuestThreadFunction() {
}
}
void CpuManager::GuestRewindFunction() {
if (is_multicore) {
MultiCoreRunGuestLoop();
} else {
SingleCoreRunGuestLoop();
}
}
void CpuManager::IdleThreadFunction() {
if (is_multicore) {
MultiCoreRunIdleThread();
} else {
SingleCoreRunIdleThread();
}
}
void CpuManager::ShutdownThreadFunction() {
ShutdownThread();
}
void CpuManager::WaitForAndHandleInterrupt() {
auto& kernel = system.Kernel();
auto& physical_core = kernel.CurrentPhysicalCore();
ASSERT(Kernel::GetCurrentThread(kernel).GetDisableDispatchCount() == 1);
if (!physical_core.IsInterrupted()) {
physical_core.Idle();
}
HandleInterrupt();
}
void CpuManager::HandleInterrupt() {
auto& kernel = system.Kernel();
auto core_index = kernel.CurrentPhysicalCoreIndex();
Kernel::KInterruptManager::HandleInterrupt(kernel, static_cast<s32>(core_index));
}
///////////////////////////////////////////////////////////////////////////////
/// MultiCore ///
///////////////////////////////////////////////////////////////////////////////
void CpuManager::MultiCoreRunGuestThread() {
void CpuManager::MultiCoreGuestActivate() {
// Similar to the HorizonKernelMain callback in HOS
auto& kernel = system.Kernel();
kernel.CurrentScheduler()->OnThreadStart();
auto* thread = kernel.CurrentScheduler()->GetSchedulerCurrentThread();
auto& host_context = thread->GetHostContext();
host_context->SetRewindPoint([this] { GuestRewindFunction(); });
auto* scheduler = kernel.CurrentScheduler();
scheduler->Activate();
UNREACHABLE();
}
void CpuManager::MultiCoreRunGuestThread() {
// Similar to UserModeThreadStarter in HOS
auto& kernel = system.Kernel();
auto* thread = kernel.GetCurrentEmuThread();
thread->EnableDispatch();
MultiCoreRunGuestLoop();
}
@ -91,18 +113,8 @@ void CpuManager::MultiCoreRunGuestLoop() {
physical_core->Run();
physical_core = &kernel.CurrentPhysicalCore();
}
{
Kernel::KScopedDisableDispatch dd(kernel);
physical_core->ArmInterface().ClearExclusiveState();
}
}
}
void CpuManager::MultiCoreRunIdleThread() {
auto& kernel = system.Kernel();
while (true) {
Kernel::KScopedDisableDispatch dd(kernel);
kernel.CurrentPhysicalCore().Idle();
HandleInterrupt();
}
}
@ -110,83 +122,20 @@ void CpuManager::MultiCoreRunIdleThread() {
/// SingleCore ///
///////////////////////////////////////////////////////////////////////////////
void CpuManager::SingleCoreRunGuestThread() {
auto& kernel = system.Kernel();
kernel.CurrentScheduler()->OnThreadStart();
auto* thread = kernel.CurrentScheduler()->GetSchedulerCurrentThread();
auto& host_context = thread->GetHostContext();
host_context->SetRewindPoint([this] { GuestRewindFunction(); });
SingleCoreRunGuestLoop();
}
void CpuManager::SingleCoreGuestActivate() {}
void CpuManager::SingleCoreRunGuestLoop() {
auto& kernel = system.Kernel();
while (true) {
auto* physical_core = &kernel.CurrentPhysicalCore();
if (!physical_core->IsInterrupted()) {
physical_core->Run();
physical_core = &kernel.CurrentPhysicalCore();
}
kernel.SetIsPhantomModeForSingleCore(true);
system.CoreTiming().Advance();
kernel.SetIsPhantomModeForSingleCore(false);
physical_core->ArmInterface().ClearExclusiveState();
PreemptSingleCore();
auto& scheduler = kernel.Scheduler(current_core);
scheduler.RescheduleCurrentCore();
}
}
void CpuManager::SingleCoreRunGuestThread() {}
void CpuManager::SingleCoreRunIdleThread() {
auto& kernel = system.Kernel();
while (true) {
auto& physical_core = kernel.CurrentPhysicalCore();
PreemptSingleCore(false);
system.CoreTiming().AddTicks(1000U);
idle_count++;
auto& scheduler = physical_core.Scheduler();
scheduler.RescheduleCurrentCore();
}
}
void CpuManager::SingleCoreRunGuestLoop() {}
void CpuManager::PreemptSingleCore(bool from_running_enviroment) {
{
auto& kernel = system.Kernel();
auto& scheduler = kernel.Scheduler(current_core);
Kernel::KThread* current_thread = scheduler.GetSchedulerCurrentThread();
if (idle_count >= 4 || from_running_enviroment) {
if (!from_running_enviroment) {
system.CoreTiming().Idle();
idle_count = 0;
}
kernel.SetIsPhantomModeForSingleCore(true);
system.CoreTiming().Advance();
kernel.SetIsPhantomModeForSingleCore(false);
}
current_core.store((current_core + 1) % Core::Hardware::NUM_CPU_CORES);
system.CoreTiming().ResetTicks();
scheduler.Unload(scheduler.GetSchedulerCurrentThread());
auto& next_scheduler = kernel.Scheduler(current_core);
Common::Fiber::YieldTo(current_thread->GetHostContext(), *next_scheduler.ControlContext());
}
// May have changed scheduler
{
auto& scheduler = system.Kernel().Scheduler(current_core);
scheduler.Reload(scheduler.GetSchedulerCurrentThread());
if (!scheduler.IsIdle()) {
idle_count = 0;
}
}
}
void CpuManager::PreemptSingleCore(bool from_running_enviroment) {}
void CpuManager::ShutdownThread() {
auto& kernel = system.Kernel();
auto* thread = kernel.GetCurrentEmuThread();
auto core = is_multicore ? kernel.CurrentPhysicalCoreIndex() : 0;
auto* current_thread = kernel.GetCurrentEmuThread();
Common::Fiber::YieldTo(current_thread->GetHostContext(), *core_data[core].host_context);
Common::Fiber::YieldTo(thread->GetHostContext(), *core_data[core].host_context);
UNREACHABLE();
}
@ -218,9 +167,21 @@ void CpuManager::RunThread(std::size_t core) {
system.GPU().ObtainContext();
}
auto* current_thread = system.Kernel().CurrentScheduler()->GetIdleThread();
Kernel::SetCurrentThread(system.Kernel(), current_thread);
Common::Fiber::YieldTo(data.host_context, *current_thread->GetHostContext());
auto& kernel = system.Kernel();
auto* main_thread = Kernel::KThread::Create(kernel);
main_thread->SetName(fmt::format("MainThread:{}", core));
ASSERT(Kernel::KThread::InitializeMainThread(system, main_thread, static_cast<s32>(core))
.IsSuccess());
auto* idle_thread = Kernel::KThread::Create(kernel);
ASSERT(Kernel::KThread::InitializeIdleThread(system, idle_thread, static_cast<s32>(core))
.IsSuccess());
kernel.SetCurrentEmuThread(main_thread);
kernel.CurrentScheduler()->Initialize(idle_thread);
Common::Fiber::YieldTo(data.host_context, *main_thread->GetHostContext());
}
} // namespace Core