a33dc2f491
* Logger class changes only Now compile-time checking is possible with the help of Nullable Value types. * Misc formatting * Manual optimizations PrintGuestLog PrintGuestStackTrace Surfaceflinger DequeueBuffer * Reduce SendVibrationXX log level to Debug * Add Notice log level This level is always enabled and used to print system info, etc... Also, rewrite LogColor to switch expression as colors are static * Unify unhandled exception event handlers * Print enabled LogLevels during init * Re-add App Exit disposes in proper order nit: switch case spacing * Revert PrintGuestStackTrace to Info logs due to #1407 PrintGuestStackTrace is now called in some critical error handlers so revert to old behavior as KThread isn't part of Guest. * Batch replace Logger statements
1217 lines
No EOL
36 KiB
C#
1217 lines
No EOL
36 KiB
C#
using Ryujinx.Common.Logging;
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using Ryujinx.Cpu;
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using Ryujinx.HLE.HOS.Kernel.Common;
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using Ryujinx.HLE.HOS.Kernel.Process;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading;
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namespace Ryujinx.HLE.HOS.Kernel.Threading
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{
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class KThread : KSynchronizationObject, IKFutureSchedulerObject
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{
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public const int MaxWaitSyncObjects = 64;
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private int _hostThreadRunning;
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public Thread HostThread { get; private set; }
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public ARMeilleure.State.ExecutionContext Context { get; private set; }
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public long AffinityMask { get; set; }
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public long ThreadUid { get; private set; }
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public long TotalTimeRunning { get; set; }
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public KSynchronizationObject SignaledObj { get; set; }
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public ulong CondVarAddress { get; set; }
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private ulong _entrypoint;
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public ulong MutexAddress { get; set; }
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public KProcess Owner { get; private set; }
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private ulong _tlsAddress;
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public ulong TlsAddress => _tlsAddress;
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public ulong TlsDramAddress { get; private set; }
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public KSynchronizationObject[] WaitSyncObjects { get; }
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public int[] WaitSyncHandles { get; }
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public long LastScheduledTime { get; set; }
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public LinkedListNode<KThread>[] SiblingsPerCore { get; private set; }
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public LinkedList<KThread> Withholder { get; set; }
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public LinkedListNode<KThread> WithholderNode { get; set; }
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public LinkedListNode<KThread> ProcessListNode { get; set; }
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private LinkedList<KThread> _mutexWaiters;
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private LinkedListNode<KThread> _mutexWaiterNode;
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public KThread MutexOwner { get; private set; }
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public int ThreadHandleForUserMutex { get; set; }
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private ThreadSchedState _forcePauseFlags;
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public KernelResult ObjSyncResult { get; set; }
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public int DynamicPriority { get; set; }
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public int CurrentCore { get; set; }
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public int BasePriority { get; set; }
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public int PreferredCore { get; set; }
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private long _affinityMaskOverride;
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private int _preferredCoreOverride;
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#pragma warning disable CS0649
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private int _affinityOverrideCount;
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#pragma warning restore CS0649
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public ThreadSchedState SchedFlags { get; private set; }
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private int _shallBeTerminated;
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public bool ShallBeTerminated { get => _shallBeTerminated != 0; set => _shallBeTerminated = value ? 1 : 0; }
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public bool SyncCancelled { get; set; }
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public bool WaitingSync { get; set; }
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private bool _hasExited;
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private bool _hasBeenInitialized;
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private bool _hasBeenReleased;
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public bool WaitingInArbitration { get; set; }
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private KScheduler _scheduler;
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private KSchedulingData _schedulingData;
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public long LastPc { get; set; }
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public KThread(KernelContext context) : base(context)
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{
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_scheduler = KernelContext.Scheduler;
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_schedulingData = KernelContext.Scheduler.SchedulingData;
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WaitSyncObjects = new KSynchronizationObject[MaxWaitSyncObjects];
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WaitSyncHandles = new int[MaxWaitSyncObjects];
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SiblingsPerCore = new LinkedListNode<KThread>[KScheduler.CpuCoresCount];
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_mutexWaiters = new LinkedList<KThread>();
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}
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public KernelResult Initialize(
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ulong entrypoint,
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ulong argsPtr,
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ulong stackTop,
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int priority,
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int defaultCpuCore,
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KProcess owner,
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ThreadType type = ThreadType.User,
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ThreadStart customHostThreadStart = null)
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{
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if ((uint)type > 3)
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{
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throw new ArgumentException($"Invalid thread type \"{type}\".");
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}
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PreferredCore = defaultCpuCore;
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AffinityMask |= 1L << defaultCpuCore;
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SchedFlags = type == ThreadType.Dummy
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? ThreadSchedState.Running
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: ThreadSchedState.None;
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CurrentCore = PreferredCore;
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DynamicPriority = priority;
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BasePriority = priority;
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ObjSyncResult = KernelResult.ThreadNotStarted;
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_entrypoint = entrypoint;
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if (type == ThreadType.User)
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{
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if (owner.AllocateThreadLocalStorage(out _tlsAddress) != KernelResult.Success)
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{
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return KernelResult.OutOfMemory;
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}
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TlsDramAddress = owner.MemoryManager.GetDramAddressFromVa(_tlsAddress);
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MemoryHelper.FillWithZeros(owner.CpuMemory, (long)_tlsAddress, KTlsPageInfo.TlsEntrySize);
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}
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bool is64Bits;
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if (owner != null)
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{
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Owner = owner;
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owner.IncrementReferenceCount();
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owner.IncrementThreadCount();
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is64Bits = (owner.MmuFlags & 1) != 0;
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}
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else
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{
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is64Bits = true;
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}
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HostThread = new Thread(customHostThreadStart ?? (() => ThreadStart(entrypoint)));
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Context = CpuContext.CreateExecutionContext();
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bool isAarch32 = (Owner.MmuFlags & 1) == 0;
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Context.IsAarch32 = isAarch32;
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Context.SetX(0, argsPtr);
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if (isAarch32)
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{
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Context.SetX(13, (uint)stackTop);
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}
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else
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{
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Context.SetX(31, stackTop);
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}
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Context.CntfrqEl0 = 19200000;
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Context.Tpidr = (long)_tlsAddress;
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owner.SubscribeThreadEventHandlers(Context);
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ThreadUid = KernelContext.NewThreadUid();
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HostThread.Name = $"HLE.HostThread.{ThreadUid}";
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_hasBeenInitialized = true;
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if (owner != null)
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{
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owner.AddThread(this);
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if (owner.IsPaused)
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{
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KernelContext.CriticalSection.Enter();
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if (ShallBeTerminated || SchedFlags == ThreadSchedState.TerminationPending)
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{
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KernelContext.CriticalSection.Leave();
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return KernelResult.Success;
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}
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_forcePauseFlags |= ThreadSchedState.ProcessPauseFlag;
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CombineForcePauseFlags();
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KernelContext.CriticalSection.Leave();
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}
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}
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return KernelResult.Success;
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}
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public KernelResult Start()
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{
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if (!KernelContext.KernelInitialized)
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{
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KernelContext.CriticalSection.Enter();
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if (!ShallBeTerminated && SchedFlags != ThreadSchedState.TerminationPending)
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{
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_forcePauseFlags |= ThreadSchedState.KernelInitPauseFlag;
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CombineForcePauseFlags();
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}
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KernelContext.CriticalSection.Leave();
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}
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KernelResult result = KernelResult.ThreadTerminating;
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KernelContext.CriticalSection.Enter();
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if (!ShallBeTerminated)
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{
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KThread currentThread = KernelContext.Scheduler.GetCurrentThread();
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while (SchedFlags != ThreadSchedState.TerminationPending &&
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currentThread.SchedFlags != ThreadSchedState.TerminationPending &&
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!currentThread.ShallBeTerminated)
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{
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if ((SchedFlags & ThreadSchedState.LowMask) != ThreadSchedState.None)
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{
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result = KernelResult.InvalidState;
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break;
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}
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if (currentThread._forcePauseFlags == ThreadSchedState.None)
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{
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if (Owner != null && _forcePauseFlags != ThreadSchedState.None)
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{
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CombineForcePauseFlags();
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}
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SetNewSchedFlags(ThreadSchedState.Running);
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result = KernelResult.Success;
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break;
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}
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else
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{
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currentThread.CombineForcePauseFlags();
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KernelContext.CriticalSection.Leave();
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KernelContext.CriticalSection.Enter();
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if (currentThread.ShallBeTerminated)
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{
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break;
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}
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}
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}
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}
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KernelContext.CriticalSection.Leave();
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return result;
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}
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public void Exit()
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{
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// TODO: Debug event.
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if (Owner != null)
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{
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Owner.ResourceLimit?.Release(LimitableResource.Thread, 0, 1);
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_hasBeenReleased = true;
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}
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KernelContext.CriticalSection.Enter();
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_forcePauseFlags &= ~ThreadSchedState.ForcePauseMask;
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ExitImpl();
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KernelContext.CriticalSection.Leave();
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DecrementReferenceCount();
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}
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public ThreadSchedState PrepareForTermination()
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{
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KernelContext.CriticalSection.Enter();
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ThreadSchedState result;
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if (Interlocked.CompareExchange(ref _shallBeTerminated, 1, 0) == 0)
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{
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if ((SchedFlags & ThreadSchedState.LowMask) == ThreadSchedState.None)
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{
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SchedFlags = ThreadSchedState.TerminationPending;
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}
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else
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{
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if (_forcePauseFlags != ThreadSchedState.None)
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{
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_forcePauseFlags &= ~ThreadSchedState.ThreadPauseFlag;
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ThreadSchedState oldSchedFlags = SchedFlags;
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SchedFlags &= ThreadSchedState.LowMask;
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AdjustScheduling(oldSchedFlags);
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}
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if (BasePriority >= 0x10)
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{
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SetPriority(0xF);
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}
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if ((SchedFlags & ThreadSchedState.LowMask) == ThreadSchedState.Running)
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{
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// TODO: GIC distributor stuffs (sgir changes ect)
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}
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SignaledObj = null;
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ObjSyncResult = KernelResult.ThreadTerminating;
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ReleaseAndResume();
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}
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}
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result = SchedFlags;
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KernelContext.CriticalSection.Leave();
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return result & ThreadSchedState.LowMask;
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}
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public void Terminate()
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{
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ThreadSchedState state = PrepareForTermination();
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if (state != ThreadSchedState.TerminationPending)
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{
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KernelContext.Synchronization.WaitFor(new KSynchronizationObject[] { this }, -1, out _);
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}
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}
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public void HandlePostSyscall()
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{
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ThreadSchedState state;
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do
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{
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if (ShallBeTerminated || SchedFlags == ThreadSchedState.TerminationPending)
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{
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KernelContext.Scheduler.ExitThread(this);
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Exit();
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// As the death of the thread is handled by the CPU emulator, we differ from the official kernel and return here.
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break;
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}
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KernelContext.CriticalSection.Enter();
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if (ShallBeTerminated || SchedFlags == ThreadSchedState.TerminationPending)
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{
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state = ThreadSchedState.TerminationPending;
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}
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else
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{
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if (_forcePauseFlags != ThreadSchedState.None)
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{
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CombineForcePauseFlags();
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}
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state = ThreadSchedState.Running;
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}
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KernelContext.CriticalSection.Leave();
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} while (state == ThreadSchedState.TerminationPending);
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}
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private void ExitImpl()
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{
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KernelContext.CriticalSection.Enter();
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SetNewSchedFlags(ThreadSchedState.TerminationPending);
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_hasExited = true;
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Signal();
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KernelContext.CriticalSection.Leave();
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}
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public KernelResult Sleep(long timeout)
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{
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KernelContext.CriticalSection.Enter();
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if (ShallBeTerminated || SchedFlags == ThreadSchedState.TerminationPending)
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{
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KernelContext.CriticalSection.Leave();
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return KernelResult.ThreadTerminating;
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}
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SetNewSchedFlags(ThreadSchedState.Paused);
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if (timeout > 0)
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{
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KernelContext.TimeManager.ScheduleFutureInvocation(this, timeout);
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}
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KernelContext.CriticalSection.Leave();
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if (timeout > 0)
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{
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KernelContext.TimeManager.UnscheduleFutureInvocation(this);
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}
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return 0;
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}
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public void Yield()
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{
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KernelContext.CriticalSection.Enter();
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if (SchedFlags != ThreadSchedState.Running)
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{
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KernelContext.CriticalSection.Leave();
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KernelContext.Scheduler.ContextSwitch();
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return;
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}
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if (DynamicPriority < KScheduler.PrioritiesCount)
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{
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// Move current thread to the end of the queue.
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_schedulingData.Reschedule(DynamicPriority, CurrentCore, this);
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}
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_scheduler.ThreadReselectionRequested = true;
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KernelContext.CriticalSection.Leave();
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KernelContext.Scheduler.ContextSwitch();
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}
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public void YieldWithLoadBalancing()
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{
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KernelContext.CriticalSection.Enter();
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if (SchedFlags != ThreadSchedState.Running)
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{
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KernelContext.CriticalSection.Leave();
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KernelContext.Scheduler.ContextSwitch();
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return;
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}
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int prio = DynamicPriority;
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int core = CurrentCore;
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KThread nextThreadOnCurrentQueue = null;
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if (DynamicPriority < KScheduler.PrioritiesCount)
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{
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// Move current thread to the end of the queue.
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_schedulingData.Reschedule(prio, core, this);
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Func<KThread, bool> predicate = x => x.DynamicPriority == prio;
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nextThreadOnCurrentQueue = _schedulingData.ScheduledThreads(core).FirstOrDefault(predicate);
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}
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IEnumerable<KThread> SuitableCandidates()
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{
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foreach (KThread thread in _schedulingData.SuggestedThreads(core))
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{
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int srcCore = thread.CurrentCore;
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if (srcCore >= 0)
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{
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KThread selectedSrcCore = _scheduler.CoreContexts[srcCore].SelectedThread;
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if (selectedSrcCore == thread || ((selectedSrcCore?.DynamicPriority ?? 2) < 2))
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{
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continue;
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}
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}
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// If the candidate was scheduled after the current thread, then it's not worth it,
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// unless the priority is higher than the current one.
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if (nextThreadOnCurrentQueue.LastScheduledTime >= thread.LastScheduledTime ||
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nextThreadOnCurrentQueue.DynamicPriority < thread.DynamicPriority)
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{
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yield return thread;
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}
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}
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}
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KThread dst = SuitableCandidates().FirstOrDefault(x => x.DynamicPriority <= prio);
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if (dst != null)
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{
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_schedulingData.TransferToCore(dst.DynamicPriority, core, dst);
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_scheduler.ThreadReselectionRequested = true;
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}
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if (this != nextThreadOnCurrentQueue)
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{
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_scheduler.ThreadReselectionRequested = true;
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}
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KernelContext.CriticalSection.Leave();
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KernelContext.Scheduler.ContextSwitch();
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}
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public void YieldAndWaitForLoadBalancing()
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{
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KernelContext.CriticalSection.Enter();
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if (SchedFlags != ThreadSchedState.Running)
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{
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KernelContext.CriticalSection.Leave();
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KernelContext.Scheduler.ContextSwitch();
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return;
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}
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int core = CurrentCore;
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_schedulingData.TransferToCore(DynamicPriority, -1, this);
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KThread selectedThread = null;
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if (!_schedulingData.ScheduledThreads(core).Any())
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{
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foreach (KThread thread in _schedulingData.SuggestedThreads(core))
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{
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if (thread.CurrentCore < 0)
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{
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continue;
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}
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KThread firstCandidate = _schedulingData.ScheduledThreads(thread.CurrentCore).FirstOrDefault();
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if (firstCandidate == thread)
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{
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continue;
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}
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if (firstCandidate == null || firstCandidate.DynamicPriority >= 2)
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{
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_schedulingData.TransferToCore(thread.DynamicPriority, core, thread);
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selectedThread = thread;
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}
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break;
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}
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}
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if (selectedThread != this)
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{
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_scheduler.ThreadReselectionRequested = true;
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}
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KernelContext.CriticalSection.Leave();
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KernelContext.Scheduler.ContextSwitch();
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}
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public void SetPriority(int priority)
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{
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KernelContext.CriticalSection.Enter();
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BasePriority = priority;
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UpdatePriorityInheritance();
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KernelContext.CriticalSection.Leave();
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}
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public KernelResult SetActivity(bool pause)
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{
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KernelResult result = KernelResult.Success;
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|
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KernelContext.CriticalSection.Enter();
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ThreadSchedState lowNibble = SchedFlags & ThreadSchedState.LowMask;
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|
|
if (lowNibble != ThreadSchedState.Paused && lowNibble != ThreadSchedState.Running)
|
|
{
|
|
KernelContext.CriticalSection.Leave();
|
|
|
|
return KernelResult.InvalidState;
|
|
}
|
|
|
|
KernelContext.CriticalSection.Enter();
|
|
|
|
if (!ShallBeTerminated && SchedFlags != ThreadSchedState.TerminationPending)
|
|
{
|
|
if (pause)
|
|
{
|
|
// Pause, the force pause flag should be clear (thread is NOT paused).
|
|
if ((_forcePauseFlags & ThreadSchedState.ThreadPauseFlag) == 0)
|
|
{
|
|
_forcePauseFlags |= ThreadSchedState.ThreadPauseFlag;
|
|
|
|
CombineForcePauseFlags();
|
|
}
|
|
else
|
|
{
|
|
result = KernelResult.InvalidState;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Unpause, the force pause flag should be set (thread is paused).
|
|
if ((_forcePauseFlags & ThreadSchedState.ThreadPauseFlag) != 0)
|
|
{
|
|
ThreadSchedState oldForcePauseFlags = _forcePauseFlags;
|
|
|
|
_forcePauseFlags &= ~ThreadSchedState.ThreadPauseFlag;
|
|
|
|
if ((oldForcePauseFlags & ~ThreadSchedState.ThreadPauseFlag) == ThreadSchedState.None)
|
|
{
|
|
ThreadSchedState oldSchedFlags = SchedFlags;
|
|
|
|
SchedFlags &= ThreadSchedState.LowMask;
|
|
|
|
AdjustScheduling(oldSchedFlags);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
result = KernelResult.InvalidState;
|
|
}
|
|
}
|
|
}
|
|
|
|
KernelContext.CriticalSection.Leave();
|
|
KernelContext.CriticalSection.Leave();
|
|
|
|
return result;
|
|
}
|
|
|
|
public void CancelSynchronization()
|
|
{
|
|
KernelContext.CriticalSection.Enter();
|
|
|
|
if ((SchedFlags & ThreadSchedState.LowMask) != ThreadSchedState.Paused || !WaitingSync)
|
|
{
|
|
SyncCancelled = true;
|
|
}
|
|
else if (Withholder != null)
|
|
{
|
|
Withholder.Remove(WithholderNode);
|
|
|
|
SetNewSchedFlags(ThreadSchedState.Running);
|
|
|
|
Withholder = null;
|
|
|
|
SyncCancelled = true;
|
|
}
|
|
else
|
|
{
|
|
SignaledObj = null;
|
|
ObjSyncResult = KernelResult.Cancelled;
|
|
|
|
SetNewSchedFlags(ThreadSchedState.Running);
|
|
|
|
SyncCancelled = false;
|
|
}
|
|
|
|
KernelContext.CriticalSection.Leave();
|
|
}
|
|
|
|
public KernelResult SetCoreAndAffinityMask(int newCore, long newAffinityMask)
|
|
{
|
|
KernelContext.CriticalSection.Enter();
|
|
|
|
bool useOverride = _affinityOverrideCount != 0;
|
|
|
|
// The value -3 is "do not change the preferred core".
|
|
if (newCore == -3)
|
|
{
|
|
newCore = useOverride ? _preferredCoreOverride : PreferredCore;
|
|
|
|
if ((newAffinityMask & (1 << newCore)) == 0)
|
|
{
|
|
KernelContext.CriticalSection.Leave();
|
|
|
|
return KernelResult.InvalidCombination;
|
|
}
|
|
}
|
|
|
|
if (useOverride)
|
|
{
|
|
_preferredCoreOverride = newCore;
|
|
_affinityMaskOverride = newAffinityMask;
|
|
}
|
|
else
|
|
{
|
|
long oldAffinityMask = AffinityMask;
|
|
|
|
PreferredCore = newCore;
|
|
AffinityMask = newAffinityMask;
|
|
|
|
if (oldAffinityMask != newAffinityMask)
|
|
{
|
|
int oldCore = CurrentCore;
|
|
|
|
if (CurrentCore >= 0 && ((AffinityMask >> CurrentCore) & 1) == 0)
|
|
{
|
|
if (PreferredCore < 0)
|
|
{
|
|
CurrentCore = HighestSetCore(AffinityMask);
|
|
}
|
|
else
|
|
{
|
|
CurrentCore = PreferredCore;
|
|
}
|
|
}
|
|
|
|
AdjustSchedulingForNewAffinity(oldAffinityMask, oldCore);
|
|
}
|
|
}
|
|
|
|
KernelContext.CriticalSection.Leave();
|
|
|
|
return KernelResult.Success;
|
|
}
|
|
|
|
private static int HighestSetCore(long mask)
|
|
{
|
|
for (int core = KScheduler.CpuCoresCount - 1; core >= 0; core--)
|
|
{
|
|
if (((mask >> core) & 1) != 0)
|
|
{
|
|
return core;
|
|
}
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
private void CombineForcePauseFlags()
|
|
{
|
|
ThreadSchedState oldFlags = SchedFlags;
|
|
ThreadSchedState lowNibble = SchedFlags & ThreadSchedState.LowMask;
|
|
|
|
SchedFlags = lowNibble | _forcePauseFlags;
|
|
|
|
AdjustScheduling(oldFlags);
|
|
}
|
|
|
|
private void SetNewSchedFlags(ThreadSchedState newFlags)
|
|
{
|
|
KernelContext.CriticalSection.Enter();
|
|
|
|
ThreadSchedState oldFlags = SchedFlags;
|
|
|
|
SchedFlags = (oldFlags & ThreadSchedState.HighMask) | newFlags;
|
|
|
|
if ((oldFlags & ThreadSchedState.LowMask) != newFlags)
|
|
{
|
|
AdjustScheduling(oldFlags);
|
|
}
|
|
|
|
KernelContext.CriticalSection.Leave();
|
|
}
|
|
|
|
public void ReleaseAndResume()
|
|
{
|
|
KernelContext.CriticalSection.Enter();
|
|
|
|
if ((SchedFlags & ThreadSchedState.LowMask) == ThreadSchedState.Paused)
|
|
{
|
|
if (Withholder != null)
|
|
{
|
|
Withholder.Remove(WithholderNode);
|
|
|
|
SetNewSchedFlags(ThreadSchedState.Running);
|
|
|
|
Withholder = null;
|
|
}
|
|
else
|
|
{
|
|
SetNewSchedFlags(ThreadSchedState.Running);
|
|
}
|
|
}
|
|
|
|
KernelContext.CriticalSection.Leave();
|
|
}
|
|
|
|
public void Reschedule(ThreadSchedState newFlags)
|
|
{
|
|
KernelContext.CriticalSection.Enter();
|
|
|
|
ThreadSchedState oldFlags = SchedFlags;
|
|
|
|
SchedFlags = (oldFlags & ThreadSchedState.HighMask) |
|
|
(newFlags & ThreadSchedState.LowMask);
|
|
|
|
AdjustScheduling(oldFlags);
|
|
|
|
KernelContext.CriticalSection.Leave();
|
|
}
|
|
|
|
public void AddMutexWaiter(KThread requester)
|
|
{
|
|
AddToMutexWaitersList(requester);
|
|
|
|
requester.MutexOwner = this;
|
|
|
|
UpdatePriorityInheritance();
|
|
}
|
|
|
|
public void RemoveMutexWaiter(KThread thread)
|
|
{
|
|
if (thread._mutexWaiterNode?.List != null)
|
|
{
|
|
_mutexWaiters.Remove(thread._mutexWaiterNode);
|
|
}
|
|
|
|
thread.MutexOwner = null;
|
|
|
|
UpdatePriorityInheritance();
|
|
}
|
|
|
|
public KThread RelinquishMutex(ulong mutexAddress, out int count)
|
|
{
|
|
count = 0;
|
|
|
|
if (_mutexWaiters.First == null)
|
|
{
|
|
return null;
|
|
}
|
|
|
|
KThread newMutexOwner = null;
|
|
|
|
LinkedListNode<KThread> currentNode = _mutexWaiters.First;
|
|
|
|
do
|
|
{
|
|
// Skip all threads that are not waiting for this mutex.
|
|
while (currentNode != null && currentNode.Value.MutexAddress != mutexAddress)
|
|
{
|
|
currentNode = currentNode.Next;
|
|
}
|
|
|
|
if (currentNode == null)
|
|
{
|
|
break;
|
|
}
|
|
|
|
LinkedListNode<KThread> nextNode = currentNode.Next;
|
|
|
|
_mutexWaiters.Remove(currentNode);
|
|
|
|
currentNode.Value.MutexOwner = newMutexOwner;
|
|
|
|
if (newMutexOwner != null)
|
|
{
|
|
// New owner was already selected, re-insert on new owner list.
|
|
newMutexOwner.AddToMutexWaitersList(currentNode.Value);
|
|
}
|
|
else
|
|
{
|
|
// New owner not selected yet, use current thread.
|
|
newMutexOwner = currentNode.Value;
|
|
}
|
|
|
|
count++;
|
|
|
|
currentNode = nextNode;
|
|
}
|
|
while (currentNode != null);
|
|
|
|
if (newMutexOwner != null)
|
|
{
|
|
UpdatePriorityInheritance();
|
|
|
|
newMutexOwner.UpdatePriorityInheritance();
|
|
}
|
|
|
|
return newMutexOwner;
|
|
}
|
|
|
|
private void UpdatePriorityInheritance()
|
|
{
|
|
// If any of the threads waiting for the mutex has
|
|
// higher priority than the current thread, then
|
|
// the current thread inherits that priority.
|
|
int highestPriority = BasePriority;
|
|
|
|
if (_mutexWaiters.First != null)
|
|
{
|
|
int waitingDynamicPriority = _mutexWaiters.First.Value.DynamicPriority;
|
|
|
|
if (waitingDynamicPriority < highestPriority)
|
|
{
|
|
highestPriority = waitingDynamicPriority;
|
|
}
|
|
}
|
|
|
|
if (highestPriority != DynamicPriority)
|
|
{
|
|
int oldPriority = DynamicPriority;
|
|
|
|
DynamicPriority = highestPriority;
|
|
|
|
AdjustSchedulingForNewPriority(oldPriority);
|
|
|
|
if (MutexOwner != null)
|
|
{
|
|
// Remove and re-insert to ensure proper sorting based on new priority.
|
|
MutexOwner._mutexWaiters.Remove(_mutexWaiterNode);
|
|
|
|
MutexOwner.AddToMutexWaitersList(this);
|
|
|
|
MutexOwner.UpdatePriorityInheritance();
|
|
}
|
|
}
|
|
}
|
|
|
|
private void AddToMutexWaitersList(KThread thread)
|
|
{
|
|
LinkedListNode<KThread> nextPrio = _mutexWaiters.First;
|
|
|
|
int currentPriority = thread.DynamicPriority;
|
|
|
|
while (nextPrio != null && nextPrio.Value.DynamicPriority <= currentPriority)
|
|
{
|
|
nextPrio = nextPrio.Next;
|
|
}
|
|
|
|
if (nextPrio != null)
|
|
{
|
|
thread._mutexWaiterNode = _mutexWaiters.AddBefore(nextPrio, thread);
|
|
}
|
|
else
|
|
{
|
|
thread._mutexWaiterNode = _mutexWaiters.AddLast(thread);
|
|
}
|
|
}
|
|
|
|
private void AdjustScheduling(ThreadSchedState oldFlags)
|
|
{
|
|
if (oldFlags == SchedFlags)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (oldFlags == ThreadSchedState.Running)
|
|
{
|
|
// Was running, now it's stopped.
|
|
if (CurrentCore >= 0)
|
|
{
|
|
_schedulingData.Unschedule(DynamicPriority, CurrentCore, this);
|
|
}
|
|
|
|
for (int core = 0; core < KScheduler.CpuCoresCount; core++)
|
|
{
|
|
if (core != CurrentCore && ((AffinityMask >> core) & 1) != 0)
|
|
{
|
|
_schedulingData.Unsuggest(DynamicPriority, core, this);
|
|
}
|
|
}
|
|
}
|
|
else if (SchedFlags == ThreadSchedState.Running)
|
|
{
|
|
// Was stopped, now it's running.
|
|
if (CurrentCore >= 0)
|
|
{
|
|
_schedulingData.Schedule(DynamicPriority, CurrentCore, this);
|
|
}
|
|
|
|
for (int core = 0; core < KScheduler.CpuCoresCount; core++)
|
|
{
|
|
if (core != CurrentCore && ((AffinityMask >> core) & 1) != 0)
|
|
{
|
|
_schedulingData.Suggest(DynamicPriority, core, this);
|
|
}
|
|
}
|
|
}
|
|
|
|
_scheduler.ThreadReselectionRequested = true;
|
|
}
|
|
|
|
private void AdjustSchedulingForNewPriority(int oldPriority)
|
|
{
|
|
if (SchedFlags != ThreadSchedState.Running)
|
|
{
|
|
return;
|
|
}
|
|
|
|
// Remove thread from the old priority queues.
|
|
if (CurrentCore >= 0)
|
|
{
|
|
_schedulingData.Unschedule(oldPriority, CurrentCore, this);
|
|
}
|
|
|
|
for (int core = 0; core < KScheduler.CpuCoresCount; core++)
|
|
{
|
|
if (core != CurrentCore && ((AffinityMask >> core) & 1) != 0)
|
|
{
|
|
_schedulingData.Unsuggest(oldPriority, core, this);
|
|
}
|
|
}
|
|
|
|
// Add thread to the new priority queues.
|
|
KThread currentThread = _scheduler.GetCurrentThread();
|
|
|
|
if (CurrentCore >= 0)
|
|
{
|
|
if (currentThread == this)
|
|
{
|
|
_schedulingData.SchedulePrepend(DynamicPriority, CurrentCore, this);
|
|
}
|
|
else
|
|
{
|
|
_schedulingData.Schedule(DynamicPriority, CurrentCore, this);
|
|
}
|
|
}
|
|
|
|
for (int core = 0; core < KScheduler.CpuCoresCount; core++)
|
|
{
|
|
if (core != CurrentCore && ((AffinityMask >> core) & 1) != 0)
|
|
{
|
|
_schedulingData.Suggest(DynamicPriority, core, this);
|
|
}
|
|
}
|
|
|
|
_scheduler.ThreadReselectionRequested = true;
|
|
}
|
|
|
|
private void AdjustSchedulingForNewAffinity(long oldAffinityMask, int oldCore)
|
|
{
|
|
if (SchedFlags != ThreadSchedState.Running || DynamicPriority >= KScheduler.PrioritiesCount)
|
|
{
|
|
return;
|
|
}
|
|
|
|
// Remove thread from the old priority queues.
|
|
for (int core = 0; core < KScheduler.CpuCoresCount; core++)
|
|
{
|
|
if (((oldAffinityMask >> core) & 1) != 0)
|
|
{
|
|
if (core == oldCore)
|
|
{
|
|
_schedulingData.Unschedule(DynamicPriority, core, this);
|
|
}
|
|
else
|
|
{
|
|
_schedulingData.Unsuggest(DynamicPriority, core, this);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Add thread to the new priority queues.
|
|
for (int core = 0; core < KScheduler.CpuCoresCount; core++)
|
|
{
|
|
if (((AffinityMask >> core) & 1) != 0)
|
|
{
|
|
if (core == CurrentCore)
|
|
{
|
|
_schedulingData.Schedule(DynamicPriority, core, this);
|
|
}
|
|
else
|
|
{
|
|
_schedulingData.Suggest(DynamicPriority, core, this);
|
|
}
|
|
}
|
|
}
|
|
|
|
_scheduler.ThreadReselectionRequested = true;
|
|
}
|
|
|
|
public void SetEntryArguments(long argsPtr, int threadHandle)
|
|
{
|
|
Context.SetX(0, (ulong)argsPtr);
|
|
Context.SetX(1, (ulong)threadHandle);
|
|
}
|
|
|
|
public void TimeUp()
|
|
{
|
|
ReleaseAndResume();
|
|
}
|
|
|
|
public string GetGuestStackTrace()
|
|
{
|
|
return Owner.Debugger.GetGuestStackTrace(Context);
|
|
}
|
|
|
|
public void PrintGuestStackTrace()
|
|
{
|
|
Logger.Info?.Print(LogClass.Cpu, $"Guest stack trace:\n{GetGuestStackTrace()}\n");
|
|
}
|
|
|
|
public void Execute()
|
|
{
|
|
if (Interlocked.CompareExchange(ref _hostThreadRunning, 1, 0) == 0)
|
|
{
|
|
HostThread.Start();
|
|
}
|
|
}
|
|
|
|
private void ThreadStart(ulong entrypoint)
|
|
{
|
|
Owner.CpuContext.Execute(Context, entrypoint);
|
|
|
|
ThreadExit();
|
|
|
|
Context.Dispose();
|
|
}
|
|
|
|
private void ThreadExit()
|
|
{
|
|
KernelContext.Scheduler.ExitThread(this);
|
|
KernelContext.Scheduler.RemoveThread(this);
|
|
}
|
|
|
|
public bool IsCurrentHostThread()
|
|
{
|
|
return Thread.CurrentThread == HostThread;
|
|
}
|
|
|
|
public override bool IsSignaled()
|
|
{
|
|
return _hasExited;
|
|
}
|
|
|
|
protected override void Destroy()
|
|
{
|
|
if (_hasBeenInitialized)
|
|
{
|
|
FreeResources();
|
|
|
|
bool released = Owner != null || _hasBeenReleased;
|
|
|
|
if (Owner != null)
|
|
{
|
|
Owner.ResourceLimit?.Release(LimitableResource.Thread, 1, released ? 0 : 1);
|
|
|
|
Owner.DecrementReferenceCount();
|
|
}
|
|
else
|
|
{
|
|
KernelContext.ResourceLimit.Release(LimitableResource.Thread, 1, released ? 0 : 1);
|
|
}
|
|
}
|
|
}
|
|
|
|
private void FreeResources()
|
|
{
|
|
Owner?.RemoveThread(this);
|
|
|
|
if (_tlsAddress != 0 && Owner.FreeThreadLocalStorage(_tlsAddress) != KernelResult.Success)
|
|
{
|
|
throw new InvalidOperationException("Unexpected failure freeing thread local storage.");
|
|
}
|
|
|
|
KernelContext.CriticalSection.Enter();
|
|
|
|
// Wake up all threads that may be waiting for a mutex being held by this thread.
|
|
foreach (KThread thread in _mutexWaiters)
|
|
{
|
|
thread.MutexOwner = null;
|
|
thread._preferredCoreOverride = 0;
|
|
thread.ObjSyncResult = KernelResult.InvalidState;
|
|
|
|
thread.ReleaseAndResume();
|
|
}
|
|
|
|
KernelContext.CriticalSection.Leave();
|
|
|
|
Owner?.DecrementThreadCountAndTerminateIfZero();
|
|
}
|
|
}
|
|
} |