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Some improvements to SetThreadCoreMask, simplified implementation of wait lists

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This commit is contained in:
gdkchan 2018-05-14 03:01:10 -03:00
parent 9e50ed53e6
commit ee0b14ba08
5 changed files with 199 additions and 325 deletions
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240
Ryujinx.Core/OsHle/Kernel/SvcThreadSync.cs
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@ -2,6 +2,8 @@ using ChocolArm64.State;
using Ryujinx.Core.Logging;
using Ryujinx.Core.OsHle.Handles;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using static Ryujinx.Core.OsHle.ErrorCode;
@ -110,10 +112,10 @@ namespace Ryujinx.Core.OsHle.Kernel
ulong Timeout = ThreadState.X3;
Ns.Log.PrintDebug(LogClass.KernelSvc,
"OwnerThreadHandle = " + MutexAddress .ToString("x16") + ", " +
"MutexAddress = " + CondVarAddress.ToString("x16") + ", " +
"WaitThreadHandle = " + ThreadHandle .ToString("x8") + ", " +
"Timeout = " + Timeout .ToString("x16"));
"MutexAddress = " + MutexAddress .ToString("x16") + ", " +
"CondVarAddress = " + CondVarAddress.ToString("x16") + ", " +
"ThreadHandle = " + ThreadHandle .ToString("x8") + ", " +
"Timeout = " + Timeout .ToString("x16"));
if (IsPointingInsideKernel(MutexAddress))
{
@ -181,16 +183,19 @@ namespace Ryujinx.Core.OsHle.Kernel
Ns.Log.PrintDebug(LogClass.KernelSvc, "MutexValue = " + MutexValue.ToString("x8"));
if (MutexValue != (OwnerThreadHandle | MutexHasListenersMask))
lock (Process.ThreadSyncLock)
{
return;
if (MutexValue != (OwnerThreadHandle | MutexHasListenersMask))
{
return;
}
CurrThread.WaitHandle = WaitThreadHandle;
CurrThread.MutexAddress = MutexAddress;
InsertWaitingMutexThread(OwnerThreadHandle, WaitThread);
}
CurrThread.WaitHandle = WaitThreadHandle;
CurrThread.MutexAddress = MutexAddress;
InsertWaitingMutexThread(OwnerThreadHandle, WaitThread);
Ns.Log.PrintDebug(LogClass.KernelSvc, "Entering wait state...");
Process.Scheduler.EnterWait(CurrThread);
@ -205,26 +210,22 @@ namespace Ryujinx.Core.OsHle.Kernel
return false;
}
lock (CurrThread)
lock (Process.ThreadSyncLock)
{
//This is the new thread that will not own the mutex.
//If no threads are waiting for the lock, then it should be null.
KThread OwnerThread = CurrThread.NextMutexThread;
while (OwnerThread != null && OwnerThread.MutexAddress != MutexAddress)
{
OwnerThread = OwnerThread.NextMutexThread;
}
UpdateMutexOwner(CurrThread, OwnerThread, MutexAddress);
CurrThread.NextMutexThread = null;
CurrThread.UpdatePriority();
KThread OwnerThread = GetHighestPriority(CurrThread.MutexWaiters, MutexAddress);
if (OwnerThread != null)
{
int HasListeners = OwnerThread.NextMutexThread != null ? MutexHasListenersMask : 0;
//Remove all waiting mutex from the old owner,
//and insert then on the new owner.
UpdateMutexOwner(CurrThread, OwnerThread, MutexAddress);
CurrThread.UpdatePriority();
OwnerThread.UpdatePriority();
int HasListeners = OwnerThread.MutexWaiters.Count > 0 ? MutexHasListenersMask : 0;
Process.Memory.WriteInt32(MutexAddress, HasListeners | OwnerThread.WaitHandle);
@ -238,12 +239,16 @@ namespace Ryujinx.Core.OsHle.Kernel
Process.Scheduler.WakeUp(OwnerThread);
Ns.Log.PrintDebug(LogClass.KernelSvc, "Gave mutex to thread id " + OwnerThread.ThreadId + "!");
return true;
}
else
{
Process.Memory.WriteInt32(MutexAddress, 0);
Ns.Log.PrintDebug(LogClass.KernelSvc, "No threads waiting mutex!");
return false;
}
}
@ -262,43 +267,7 @@ namespace Ryujinx.Core.OsHle.Kernel
lock (Process.ThreadArbiterListLock)
{
KThread CurrThread = Process.ThreadArbiterListHead;
if (CurrThread == null || CurrThread.ActualPriority > WaitThread.ActualPriority)
{
WaitThread.NextCondVarThread = Process.ThreadArbiterListHead;
Process.ThreadArbiterListHead = WaitThread;
}
else
{
bool DoInsert = CurrThread != WaitThread;
while (CurrThread.NextCondVarThread != null)
{
if (CurrThread.NextCondVarThread.ActualPriority > WaitThread.ActualPriority)
{
break;
}
CurrThread = CurrThread.NextCondVarThread;
DoInsert &= CurrThread != WaitThread;
}
//Only insert if the node doesn't already exist in the list.
//This prevents circular references.
if (DoInsert)
{
if (WaitThread.NextCondVarThread != null)
{
throw new InvalidOperationException();
}
WaitThread.NextCondVarThread = CurrThread.NextCondVarThread;
CurrThread.NextCondVarThread = WaitThread;
}
}
Process.ThreadArbiterList.Add(WaitThread);
}
Ns.Log.PrintDebug(LogClass.KernelSvc, "Entering wait state...");
@ -319,62 +288,44 @@ namespace Ryujinx.Core.OsHle.Kernel
{
lock (Process.ThreadArbiterListLock)
{
KThread PrevThread = null;
KThread CurrThread = Process.ThreadArbiterListHead;
KThread CurrThread = GetHighestPriority(CondVarAddress);
while (CurrThread != null && (Count == -1 || Count > 0))
while (CurrThread != null && (Count == -1 || Count-- > 0))
{
if (CurrThread.CondVarAddress == CondVarAddress)
AcquireMutexValue(CurrThread.MutexAddress);
int MutexValue = Process.Memory.ReadInt32(CurrThread.MutexAddress);
if (MutexValue == 0)
{
if (PrevThread != null)
{
PrevThread.NextCondVarThread = CurrThread.NextCondVarThread;
}
else
{
Process.ThreadArbiterListHead = CurrThread.NextCondVarThread;
}
//Give the lock to this thread.
Process.Memory.WriteInt32(CurrThread.MutexAddress, CurrThread.WaitHandle);
CurrThread.NextCondVarThread = null;
CurrThread.WaitHandle = 0;
CurrThread.MutexAddress = 0;
CurrThread.CondVarAddress = 0;
AcquireMutexValue(CurrThread.MutexAddress);
CurrThread.MutexOwner?.UpdatePriority();
int MutexValue = Process.Memory.ReadInt32(CurrThread.MutexAddress);
CurrThread.MutexOwner = null;
if (MutexValue == 0)
{
//Give the lock to this thread.
Process.Memory.WriteInt32(CurrThread.MutexAddress, CurrThread.WaitHandle);
Process.Scheduler.WakeUp(CurrThread);
}
else
{
//Wait until the lock is released.
MutexValue &= ~MutexHasListenersMask;
CurrThread.WaitHandle = 0;
CurrThread.MutexAddress = 0;
CurrThread.CondVarAddress = 0;
InsertWaitingMutexThread(MutexValue, CurrThread);
CurrThread.MutexOwner?.UpdatePriority();
MutexValue |= MutexHasListenersMask;
CurrThread.MutexOwner = null;
Process.Scheduler.WakeUp(CurrThread);
}
else
{
//Wait until the lock is released.
MutexValue &= ~MutexHasListenersMask;
InsertWaitingMutexThread(MutexValue, CurrThread);
MutexValue |= MutexHasListenersMask;
Process.Memory.WriteInt32(CurrThread.MutexAddress, MutexValue);
}
ReleaseMutexValue(CurrThread.MutexAddress);
Count--;
Process.Memory.WriteInt32(CurrThread.MutexAddress, MutexValue);
}
PrevThread = CurrThread;
CurrThread = CurrThread.NextCondVarThread;
ReleaseMutexValue(CurrThread.MutexAddress);
CurrThread = GetHighestPriority(CondVarAddress);
}
}
}
@ -390,59 +341,68 @@ namespace Ryujinx.Core.OsHle.Kernel
return;
}
WaitThread.MutexOwner = OwnerThread;
InsertWaitingMutexThread(OwnerThread, WaitThread);
}
lock (OwnerThread)
private void InsertWaitingMutexThread(KThread OwnerThread, KThread WaitThread)
{
lock (Process.ThreadSyncLock)
{
KThread CurrThread = OwnerThread;
WaitThread.MutexOwner = OwnerThread;
while (CurrThread.NextMutexThread != null)
if (!OwnerThread.MutexWaiters.Contains(WaitThread))
{
if (CurrThread == WaitThread)
{
return;
}
OwnerThread.MutexWaiters.Add(WaitThread);
if (CurrThread.NextMutexThread.ActualPriority > WaitThread.ActualPriority)
{
break;
}
CurrThread = CurrThread.NextMutexThread;
}
if (CurrThread != WaitThread)
{
if (WaitThread.NextMutexThread != null)
{
throw new InvalidOperationException();
}
WaitThread.NextMutexThread = CurrThread.NextMutexThread;
CurrThread.NextMutexThread = WaitThread;
OwnerThread.UpdatePriority();
}
}
OwnerThread.UpdatePriority();
}
private void UpdateMutexOwner(KThread CurrThread, KThread NewOwner, long MutexAddress)
{
//Go through all threads waiting for the mutex,
//and update the MutexOwner field to point to the new owner.
CurrThread = CurrThread.NextMutexThread;
while (CurrThread != null)
lock (Process.ThreadSyncLock)
{
if (CurrThread.MutexAddress == MutexAddress)
for (int Index = 0; Index < CurrThread.MutexWaiters.Count; Index++)
{
CurrThread.MutexOwner = NewOwner;
}
KThread Thread = CurrThread.MutexWaiters[Index];
CurrThread = CurrThread.NextMutexThread;
if (Thread.MutexAddress == MutexAddress)
{
CurrThread.MutexWaiters.RemoveAt(Index--);
Thread.MutexOwner = NewOwner;
NewOwner.MutexWaiters.Add(Thread);
}
}
}
}
private KThread GetHighestPriority(List<KThread> Threads, long MutexAddress)
{
return GetHighestPriority(Threads, x => x.MutexAddress == MutexAddress);
}
private KThread GetHighestPriority(long CondVarAddress)
{
return GetHighestPriority(Process.ThreadArbiterList, x => x.CondVarAddress == CondVarAddress);
}
private KThread GetHighestPriority(List<KThread> Threads, Func<KThread, bool> Predicate)
{
KThread Thread = Threads.OrderBy(x => x.ActualPriority).FirstOrDefault(Predicate);
if (Thread != null)
{
Threads.Remove(Thread);
}
return Thread;
}
private void AcquireMutexValue(long MutexAddress)
{
while (!Process.Memory.AcquireAddress(MutexAddress))