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author | bunnei <bunneidev@gmail.com> | 2021-12-13 07:43:25 +0100 |
---|---|---|
committer | GitHub <noreply@github.com> | 2021-12-13 07:43:25 +0100 |
commit | 280c77989880e81f622440b157a0ce1b7139847b (patch) | |
tree | 49a3ef8127d721dc44effb8315e5db7e796336f4 /src/core/hle/kernel/k_scheduler.cpp | |
parent | Merge pull request #7495 from FernandoS27/text-blit-fix-again (diff) | |
parent | hle: kernel k_scheduler: EnableScheduling: Remove redundant GetCurrentThreadPointer calls. (diff) | |
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Diffstat (limited to '')
-rw-r--r-- | src/core/hle/kernel/k_scheduler.cpp | 101 |
1 files changed, 60 insertions, 41 deletions
diff --git a/src/core/hle/kernel/k_scheduler.cpp b/src/core/hle/kernel/k_scheduler.cpp index 6a7d80d03..277201de4 100644 --- a/src/core/hle/kernel/k_scheduler.cpp +++ b/src/core/hle/kernel/k_scheduler.cpp @@ -240,8 +240,8 @@ void KScheduler::OnThreadPriorityChanged(KernelCore& kernel, KThread* thread, s3 // If the thread is runnable, we want to change its priority in the queue. if (thread->GetRawState() == ThreadState::Runnable) { - GetPriorityQueue(kernel).ChangePriority( - old_priority, thread == kernel.CurrentScheduler()->GetCurrentThread(), thread); + GetPriorityQueue(kernel).ChangePriority(old_priority, + thread == kernel.GetCurrentEmuThread(), thread); IncrementScheduledCount(thread); SetSchedulerUpdateNeeded(kernel); } @@ -360,7 +360,7 @@ void KScheduler::RotateScheduledQueue(s32 cpu_core_id, s32 priority) { } bool KScheduler::CanSchedule(KernelCore& kernel) { - return kernel.CurrentScheduler()->GetCurrentThread()->GetDisableDispatchCount() <= 1; + return kernel.GetCurrentEmuThread()->GetDisableDispatchCount() <= 1; } bool KScheduler::IsSchedulerUpdateNeeded(const KernelCore& kernel) { @@ -376,20 +376,30 @@ void KScheduler::ClearSchedulerUpdateNeeded(KernelCore& kernel) { } void KScheduler::DisableScheduling(KernelCore& kernel) { - if (auto* scheduler = kernel.CurrentScheduler(); scheduler) { - ASSERT(scheduler->GetCurrentThread()->GetDisableDispatchCount() >= 0); - scheduler->GetCurrentThread()->DisableDispatch(); + // If we are shutting down the kernel, none of this is relevant anymore. + if (kernel.IsShuttingDown()) { + return; } + + ASSERT(GetCurrentThreadPointer(kernel)->GetDisableDispatchCount() >= 0); + GetCurrentThreadPointer(kernel)->DisableDispatch(); } void KScheduler::EnableScheduling(KernelCore& kernel, u64 cores_needing_scheduling) { - if (auto* scheduler = kernel.CurrentScheduler(); scheduler) { - ASSERT(scheduler->GetCurrentThread()->GetDisableDispatchCount() >= 1); - if (scheduler->GetCurrentThread()->GetDisableDispatchCount() >= 1) { - scheduler->GetCurrentThread()->EnableDispatch(); - } + // If we are shutting down the kernel, none of this is relevant anymore. + if (kernel.IsShuttingDown()) { + return; + } + + auto* current_thread = GetCurrentThreadPointer(kernel); + + ASSERT(current_thread->GetDisableDispatchCount() >= 1); + + if (current_thread->GetDisableDispatchCount() > 1) { + current_thread->EnableDispatch(); + } else { + RescheduleCores(kernel, cores_needing_scheduling); } - RescheduleCores(kernel, cores_needing_scheduling); } u64 KScheduler::UpdateHighestPriorityThreads(KernelCore& kernel) { @@ -617,13 +627,17 @@ KScheduler::KScheduler(Core::System& system_, s32 core_id_) : system{system_}, c state.highest_priority_thread = nullptr; } -KScheduler::~KScheduler() { +void KScheduler::Finalize() { if (idle_thread) { idle_thread->Close(); idle_thread = nullptr; } } +KScheduler::~KScheduler() { + ASSERT(!idle_thread); +} + KThread* KScheduler::GetCurrentThread() const { if (auto result = current_thread.load(); result) { return result; @@ -642,10 +656,12 @@ void KScheduler::RescheduleCurrentCore() { if (phys_core.IsInterrupted()) { phys_core.ClearInterrupt(); } + guard.Lock(); if (state.needs_scheduling.load()) { Schedule(); } else { + GetCurrentThread()->EnableDispatch(); guard.Unlock(); } } @@ -655,26 +671,33 @@ void KScheduler::OnThreadStart() { } void KScheduler::Unload(KThread* thread) { + ASSERT(thread); + LOG_TRACE(Kernel, "core {}, unload thread {}", core_id, thread ? thread->GetName() : "nullptr"); - if (thread) { - if (thread->IsCallingSvc()) { - thread->ClearIsCallingSvc(); - } - if (!thread->IsTerminationRequested()) { - prev_thread = thread; - - Core::ARM_Interface& 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(); - } else { - prev_thread = nullptr; - } - thread->context_guard.Unlock(); + if (thread->IsCallingSvc()) { + thread->ClearIsCallingSvc(); + } + + auto& physical_core = system.Kernel().PhysicalCore(core_id); + if (!physical_core.IsInitialized()) { + return; + } + + Core::ARM_Interface& cpu_core = physical_core.ArmInterface(); + 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(); + + if (!thread->IsTerminationRequested() && thread->GetActiveCore() == core_id) { + prev_thread = thread; + } else { + prev_thread = nullptr; } + + thread->context_guard.Unlock(); } void KScheduler::Reload(KThread* thread) { @@ -683,11 +706,6 @@ void KScheduler::Reload(KThread* thread) { if (thread) { ASSERT_MSG(thread->GetState() == ThreadState::Runnable, "Thread must be runnable."); - auto* const thread_owner_process = thread->GetOwnerProcess(); - if (thread_owner_process != nullptr) { - system.Kernel().MakeCurrentProcess(thread_owner_process); - } - Core::ARM_Interface& cpu_core = system.ArmInterface(core_id); cpu_core.LoadContext(thread->GetContext32()); cpu_core.LoadContext(thread->GetContext64()); @@ -705,7 +723,7 @@ void KScheduler::SwitchContextStep2() { } void KScheduler::ScheduleImpl() { - KThread* previous_thread = current_thread.load(); + KThread* previous_thread = GetCurrentThread(); KThread* next_thread = state.highest_priority_thread; state.needs_scheduling = false; @@ -717,10 +735,15 @@ void KScheduler::ScheduleImpl() { // If we're not actually switching thread, there's nothing to do. if (next_thread == current_thread.load()) { + previous_thread->EnableDispatch(); guard.Unlock(); return; } + if (next_thread->GetCurrentCore() != core_id) { + next_thread->SetCurrentCore(core_id); + } + current_thread.store(next_thread); KProcess* const previous_process = system.Kernel().CurrentProcess(); @@ -731,11 +754,7 @@ void KScheduler::ScheduleImpl() { Unload(previous_thread); std::shared_ptr<Common::Fiber>* old_context; - if (previous_thread != nullptr) { - old_context = &previous_thread->GetHostContext(); - } else { - old_context = &idle_thread->GetHostContext(); - } + old_context = &previous_thread->GetHostContext(); guard.Unlock(); Common::Fiber::YieldTo(*old_context, *switch_fiber); |