From 4217e58a103049675df27f404171f73fa0be8537 Mon Sep 17 00:00:00 2001 From: Fernando Sahmkow Date: Sun, 8 Mar 2020 11:25:50 -0400 Subject: [PATCH] Scheduler: Correct yields. --- src/core/hle/kernel/scheduler.cpp | 28 +++++++++++++++++++++------- src/core/hle/kernel/thread.h | 4 ++++ 2 files changed, 25 insertions(+), 7 deletions(-) diff --git a/src/core/hle/kernel/scheduler.cpp b/src/core/hle/kernel/scheduler.cpp index affc2fbed..ab17204bb 100644 --- a/src/core/hle/kernel/scheduler.cpp +++ b/src/core/hle/kernel/scheduler.cpp @@ -147,9 +147,11 @@ bool GlobalScheduler::YieldThread(Thread* yielding_thread) { const u32 priority = yielding_thread->GetPriority(); // Yield the thread - const Thread* const winner = scheduled_queue[core_id].front(priority); - ASSERT_MSG(yielding_thread == winner, "Thread yielding without being in front"); - scheduled_queue[core_id].yield(priority); + Reschedule(priority, core_id, yielding_thread); + const Thread* const winner = scheduled_queue[core_id].front(); + if (kernel.GetCurrentHostThreadID() != core_id) { + is_reselection_pending.store(true, std::memory_order_release); + } return AskForReselectionOrMarkRedundant(yielding_thread, winner); } @@ -162,9 +164,7 @@ bool GlobalScheduler::YieldThreadAndBalanceLoad(Thread* yielding_thread) { const u32 priority = yielding_thread->GetPriority(); // Yield the thread - ASSERT_MSG(yielding_thread == scheduled_queue[core_id].front(priority), - "Thread yielding without being in front"); - scheduled_queue[core_id].yield(priority); + Reschedule(priority, core_id, yielding_thread); std::array current_threads; for (std::size_t i = 0; i < current_threads.size(); i++) { @@ -200,6 +200,10 @@ bool GlobalScheduler::YieldThreadAndBalanceLoad(Thread* yielding_thread) { winner = next_thread; } + if (kernel.GetCurrentHostThreadID() != core_id) { + is_reselection_pending.store(true, std::memory_order_release); + } + return AskForReselectionOrMarkRedundant(yielding_thread, winner); } @@ -239,6 +243,12 @@ bool GlobalScheduler::YieldThreadAndWaitForLoadBalancing(Thread* yielding_thread } else { winner = yielding_thread; } + } else { + winner = scheduled_queue[i].front(); + } + + if (kernel.GetCurrentHostThreadID() != core_id) { + is_reselection_pending.store(true, std::memory_order_release); } return AskForReselectionOrMarkRedundant(yielding_thread, winner); @@ -687,7 +697,11 @@ void Scheduler::SwitchToCurrent() { while (!is_context_switch_pending) { if (current_thread != nullptr && !current_thread->IsHLEThread()) { current_thread->context_guard.lock(); - if (current_thread->GetSchedulingStatus() != ThreadSchedStatus::Runnable) { + if (!current_thread->IsRunnable()) { + current_thread->context_guard.unlock(); + break; + } + if (current_thread->GetProcessorID() != core_id) { current_thread->context_guard.unlock(); break; } diff --git a/src/core/hle/kernel/thread.h b/src/core/hle/kernel/thread.h index 0a8f7bb65..953b023b5 100644 --- a/src/core/hle/kernel/thread.h +++ b/src/core/hle/kernel/thread.h @@ -524,6 +524,10 @@ public: static_cast(ThreadSchedMasks::LowMask)); } + bool IsRunnable() const { + return scheduling_state == static_cast(ThreadSchedStatus::Runnable); + } + bool IsRunning() const { return is_running; }