mirror of
https://github.com/GreemDev/Ryujinx.git
synced 2024-12-04 22:37:57 +01:00
54ea2285f0
* Refactoring of KMemoryManager class * Replace some trivial uses of DRAM address with VA * Get rid of GetDramAddressFromVa * Abstracting more operations on derived page table class * Run auto-format on KPageTableBase * Managed to make TryConvertVaToPa private, few uses remains now * Implement guest physical pages ref counting, remove manual freeing * Make DoMmuOperation private and call new abstract methods only from the base class * Pass pages count rather than size on Map/UnmapMemory * Change memory managers to take host pointers * Fix a guest memory leak and simplify KPageTable * Expose new methods for host range query and mapping * Some refactoring of MapPagesFromClientProcess to allow proper page ref counting and mapping without KPageLists * Remove more uses of AddVaRangeToPageList, now only one remains (shared memory page checking) * Add a SharedMemoryStorage class, will be useful for host mapping * Sayonara AddVaRangeToPageList, you served us well * Start to implement host memory mapping (WIP) * Support memory tracking through host exception handling * Fix some access violations from HLE service guest memory access and CPU * Fix memory tracking * Fix mapping list bugs, including a race and a error adding mapping ranges * Simple page table for memory tracking * Simple "volatile" region handle mode * Update UBOs directly (experimental, rough) * Fix the overlap check * Only set non-modified buffers as volatile * Fix some memory tracking issues * Fix possible race in MapBufferFromClientProcess (block list updates were not locked) * Write uniform update to memory immediately, only defer the buffer set. * Fix some memory tracking issues * Pass correct pages count on shared memory unmap * Armeilleure Signal Handler v1 + Unix changes Unix currently behaves like windows, rather than remapping physical * Actually check if the host platform is unix * Fix decommit on linux. * Implement windows 10 placeholder shared memory, fix a buffer issue. * Make PTC version something that will never match with master * Remove testing variable for block count * Add reference count for memory manager, fix dispose Can still deadlock with OpenAL * Add address validation, use page table for mapped check, add docs Might clean up the page table traversing routines. * Implement batched mapping/tracking. * Move documentation, fix tests. * Cleanup uniform buffer update stuff. * Remove unnecessary assignment. * Add unsafe host mapped memory switch On by default. Would be good to turn this off for untrusted code (homebrew, exefs mods) and give the user the option to turn it on manually, though that requires some UI work. * Remove C# exception handlers They have issues due to current .NET limitations, so the meilleure one fully replaces them for now. * Fix MapPhysicalMemory on the software MemoryManager. * Null check for GetHostAddress, docs * Add configuration for setting memory manager mode (not in UI yet) * Add config to UI * Fix type mismatch on Unix signal handler code emit * Fix 6GB DRAM mode. The size can be greater than `uint.MaxValue` when the DRAM is >4GB. * Address some feedback. * More detailed error if backing memory cannot be mapped. * SetLastError on all OS functions for consistency * Force pages dirty with UBO update instead of setting them directly. Seems to be much faster across a few games. Need retesting. * Rebase, configuration rework, fix mem tracking regression * Fix race in FreePages * Set memory managers null after decrementing ref count * Remove readonly keyword, as this is now modified. * Use a local variable for the signal handler rather than a register. * Fix bug with buffer resize, and index/uniform buffer binding. Should fix flickering in games. * Add InvalidAccessHandler to MemoryTracking Doesn't do anything yet * Call invalid access handler on unmapped read/write. Same rules as the regular memory manager. * Make unsafe mapped memory its own MemoryManagerType * Move FlushUboDirty into UpdateState. * Buffer dirty cache, rather than ubo cache Much cleaner, may be reusable for Inline2Memory updates. * This doesn't return anything anymore. * Add sigaction remove methods, correct a few function signatures. * Return empty list of physical regions for size 0. * Also on AddressSpaceManager Co-authored-by: gdkchan <gab.dark.100@gmail.com>
1106 lines
33 KiB
C#
1106 lines
33 KiB
C#
using Ryujinx.Common.Logging;
|
|
using Ryujinx.Cpu;
|
|
using Ryujinx.HLE.HOS.Kernel.Common;
|
|
using Ryujinx.HLE.HOS.Kernel.Process;
|
|
using System;
|
|
using System.Collections.Generic;
|
|
using System.Numerics;
|
|
using System.Threading;
|
|
|
|
namespace Ryujinx.HLE.HOS.Kernel.Threading
|
|
{
|
|
class KThread : KSynchronizationObject, IKFutureSchedulerObject
|
|
{
|
|
public const int MaxWaitSyncObjects = 64;
|
|
|
|
private ManualResetEvent _schedulerWaitEvent;
|
|
|
|
public ManualResetEvent SchedulerWaitEvent => _schedulerWaitEvent;
|
|
|
|
public Thread HostThread { get; private set; }
|
|
|
|
public ARMeilleure.State.ExecutionContext Context { get; private set; }
|
|
|
|
public KThreadContext ThreadContext { get; private set; }
|
|
|
|
public int DynamicPriority { get; set; }
|
|
public long AffinityMask { get; set; }
|
|
|
|
public long ThreadUid { get; private set; }
|
|
|
|
private long _totalTimeRunning;
|
|
|
|
public long TotalTimeRunning => _totalTimeRunning;
|
|
|
|
public KSynchronizationObject SignaledObj { get; set; }
|
|
|
|
public ulong CondVarAddress { get; set; }
|
|
|
|
private ulong _entrypoint;
|
|
private ThreadStart _customThreadStart;
|
|
private bool _forcedUnschedulable;
|
|
|
|
public bool IsSchedulable => _customThreadStart == null && !_forcedUnschedulable;
|
|
|
|
public ulong MutexAddress { get; set; }
|
|
|
|
public KProcess Owner { get; private set; }
|
|
|
|
private ulong _tlsAddress;
|
|
|
|
public ulong TlsAddress => _tlsAddress;
|
|
|
|
public KSynchronizationObject[] WaitSyncObjects { get; }
|
|
public int[] WaitSyncHandles { get; }
|
|
|
|
public long LastScheduledTime { get; set; }
|
|
|
|
public LinkedListNode<KThread>[] SiblingsPerCore { get; private set; }
|
|
|
|
public LinkedList<KThread> Withholder { get; set; }
|
|
public LinkedListNode<KThread> WithholderNode { get; set; }
|
|
|
|
public LinkedListNode<KThread> ProcessListNode { get; set; }
|
|
|
|
private LinkedList<KThread> _mutexWaiters;
|
|
private LinkedListNode<KThread> _mutexWaiterNode;
|
|
|
|
public KThread MutexOwner { get; private set; }
|
|
|
|
public int ThreadHandleForUserMutex { get; set; }
|
|
|
|
private ThreadSchedState _forcePauseFlags;
|
|
|
|
public KernelResult ObjSyncResult { get; set; }
|
|
|
|
public int BasePriority { get; set; }
|
|
public int PreferredCore { get; set; }
|
|
|
|
public int CurrentCore { get; set; }
|
|
public int ActiveCore { get; set; }
|
|
|
|
private long _affinityMaskOverride;
|
|
private int _preferredCoreOverride;
|
|
#pragma warning disable CS0649
|
|
private int _affinityOverrideCount;
|
|
#pragma warning restore CS0649
|
|
|
|
public ThreadSchedState SchedFlags { get; private set; }
|
|
|
|
private int _shallBeTerminated;
|
|
|
|
public bool ShallBeTerminated
|
|
{
|
|
get => _shallBeTerminated != 0;
|
|
set => _shallBeTerminated = value ? 1 : 0;
|
|
}
|
|
|
|
public bool TerminationRequested => ShallBeTerminated || SchedFlags == ThreadSchedState.TerminationPending;
|
|
|
|
public bool SyncCancelled { get; set; }
|
|
public bool WaitingSync { get; set; }
|
|
|
|
private int _hasExited;
|
|
private bool _hasBeenInitialized;
|
|
private bool _hasBeenReleased;
|
|
|
|
public bool WaitingInArbitration { get; set; }
|
|
|
|
public long LastPc { get; set; }
|
|
|
|
public KThread(KernelContext context) : base(context)
|
|
{
|
|
WaitSyncObjects = new KSynchronizationObject[MaxWaitSyncObjects];
|
|
WaitSyncHandles = new int[MaxWaitSyncObjects];
|
|
|
|
SiblingsPerCore = new LinkedListNode<KThread>[KScheduler.CpuCoresCount];
|
|
|
|
_mutexWaiters = new LinkedList<KThread>();
|
|
}
|
|
|
|
public KernelResult Initialize(
|
|
ulong entrypoint,
|
|
ulong argsPtr,
|
|
ulong stackTop,
|
|
int priority,
|
|
int cpuCore,
|
|
KProcess owner,
|
|
ThreadType type,
|
|
ThreadStart customThreadStart = null)
|
|
{
|
|
if ((uint)type > 3)
|
|
{
|
|
throw new ArgumentException($"Invalid thread type \"{type}\".");
|
|
}
|
|
|
|
ThreadContext = new KThreadContext();
|
|
|
|
PreferredCore = cpuCore;
|
|
AffinityMask |= 1L << cpuCore;
|
|
|
|
SchedFlags = type == ThreadType.Dummy
|
|
? ThreadSchedState.Running
|
|
: ThreadSchedState.None;
|
|
|
|
ActiveCore = cpuCore;
|
|
ObjSyncResult = KernelResult.ThreadNotStarted;
|
|
DynamicPriority = priority;
|
|
BasePriority = priority;
|
|
CurrentCore = cpuCore;
|
|
|
|
_entrypoint = entrypoint;
|
|
_customThreadStart = customThreadStart;
|
|
|
|
if (type == ThreadType.User)
|
|
{
|
|
if (owner.AllocateThreadLocalStorage(out _tlsAddress) != KernelResult.Success)
|
|
{
|
|
return KernelResult.OutOfMemory;
|
|
}
|
|
|
|
MemoryHelper.FillWithZeros(owner.CpuMemory, _tlsAddress, KTlsPageInfo.TlsEntrySize);
|
|
}
|
|
|
|
bool is64Bits;
|
|
|
|
if (owner != null)
|
|
{
|
|
Owner = owner;
|
|
|
|
owner.IncrementReferenceCount();
|
|
owner.IncrementThreadCount();
|
|
|
|
is64Bits = owner.Flags.HasFlag(ProcessCreationFlags.Is64Bit);
|
|
}
|
|
else
|
|
{
|
|
is64Bits = true;
|
|
}
|
|
|
|
HostThread = new Thread(ThreadStart);
|
|
|
|
Context = CpuContext.CreateExecutionContext();
|
|
|
|
Context.IsAarch32 = !is64Bits;
|
|
|
|
Context.SetX(0, argsPtr);
|
|
|
|
if (is64Bits)
|
|
{
|
|
Context.SetX(31, stackTop);
|
|
}
|
|
else
|
|
{
|
|
Context.SetX(13, (uint)stackTop);
|
|
}
|
|
|
|
Context.CntfrqEl0 = 19200000;
|
|
Context.Tpidr = (long)_tlsAddress;
|
|
|
|
ThreadUid = KernelContext.NewThreadUid();
|
|
|
|
HostThread.Name = customThreadStart != null ? $"HLE.OsThread.{ThreadUid}" : $"HLE.GuestThread.{ThreadUid}";
|
|
|
|
_hasBeenInitialized = true;
|
|
|
|
if (owner != null)
|
|
{
|
|
owner.SubscribeThreadEventHandlers(Context);
|
|
owner.AddThread(this);
|
|
|
|
if (owner.IsPaused)
|
|
{
|
|
KernelContext.CriticalSection.Enter();
|
|
|
|
if (TerminationRequested)
|
|
{
|
|
KernelContext.CriticalSection.Leave();
|
|
|
|
return KernelResult.Success;
|
|
}
|
|
|
|
_forcePauseFlags |= ThreadSchedState.ProcessPauseFlag;
|
|
|
|
CombineForcePauseFlags();
|
|
|
|
KernelContext.CriticalSection.Leave();
|
|
}
|
|
}
|
|
|
|
return KernelResult.Success;
|
|
}
|
|
|
|
public KernelResult Start()
|
|
{
|
|
if (!KernelContext.KernelInitialized)
|
|
{
|
|
KernelContext.CriticalSection.Enter();
|
|
|
|
if (!TerminationRequested)
|
|
{
|
|
_forcePauseFlags |= ThreadSchedState.KernelInitPauseFlag;
|
|
|
|
CombineForcePauseFlags();
|
|
}
|
|
|
|
KernelContext.CriticalSection.Leave();
|
|
}
|
|
|
|
KernelResult result = KernelResult.ThreadTerminating;
|
|
|
|
KernelContext.CriticalSection.Enter();
|
|
|
|
if (!ShallBeTerminated)
|
|
{
|
|
KThread currentThread = KernelStatic.GetCurrentThread();
|
|
|
|
while (SchedFlags != ThreadSchedState.TerminationPending && (currentThread == null || !currentThread.TerminationRequested))
|
|
{
|
|
if ((SchedFlags & ThreadSchedState.LowMask) != ThreadSchedState.None)
|
|
{
|
|
result = KernelResult.InvalidState;
|
|
break;
|
|
}
|
|
|
|
if (currentThread == null || currentThread._forcePauseFlags == ThreadSchedState.None)
|
|
{
|
|
if (Owner != null && _forcePauseFlags != ThreadSchedState.None)
|
|
{
|
|
CombineForcePauseFlags();
|
|
}
|
|
|
|
SetNewSchedFlags(ThreadSchedState.Running);
|
|
|
|
StartHostThread();
|
|
|
|
result = KernelResult.Success;
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
currentThread.CombineForcePauseFlags();
|
|
|
|
KernelContext.CriticalSection.Leave();
|
|
KernelContext.CriticalSection.Enter();
|
|
|
|
if (currentThread.ShallBeTerminated)
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
KernelContext.CriticalSection.Leave();
|
|
|
|
return result;
|
|
}
|
|
|
|
public ThreadSchedState PrepareForTermination()
|
|
{
|
|
KernelContext.CriticalSection.Enter();
|
|
|
|
ThreadSchedState result;
|
|
|
|
if (Interlocked.CompareExchange(ref _shallBeTerminated, 1, 0) == 0)
|
|
{
|
|
if ((SchedFlags & ThreadSchedState.LowMask) == ThreadSchedState.None)
|
|
{
|
|
SchedFlags = ThreadSchedState.TerminationPending;
|
|
}
|
|
else
|
|
{
|
|
if (_forcePauseFlags != ThreadSchedState.None)
|
|
{
|
|
_forcePauseFlags &= ~ThreadSchedState.ThreadPauseFlag;
|
|
|
|
ThreadSchedState oldSchedFlags = SchedFlags;
|
|
|
|
SchedFlags &= ThreadSchedState.LowMask;
|
|
|
|
AdjustScheduling(oldSchedFlags);
|
|
}
|
|
|
|
if (BasePriority >= 0x10)
|
|
{
|
|
SetPriority(0xF);
|
|
}
|
|
|
|
if ((SchedFlags & ThreadSchedState.LowMask) == ThreadSchedState.Running)
|
|
{
|
|
// TODO: GIC distributor stuffs (sgir changes ect)
|
|
Context.RequestInterrupt();
|
|
}
|
|
|
|
SignaledObj = null;
|
|
ObjSyncResult = KernelResult.ThreadTerminating;
|
|
|
|
ReleaseAndResume();
|
|
}
|
|
}
|
|
|
|
result = SchedFlags;
|
|
|
|
KernelContext.CriticalSection.Leave();
|
|
|
|
return result & ThreadSchedState.LowMask;
|
|
}
|
|
|
|
public void Terminate()
|
|
{
|
|
ThreadSchedState state = PrepareForTermination();
|
|
|
|
if (state != ThreadSchedState.TerminationPending)
|
|
{
|
|
KernelContext.Synchronization.WaitFor(new KSynchronizationObject[] { this }, -1, out _);
|
|
}
|
|
}
|
|
|
|
public void HandlePostSyscall()
|
|
{
|
|
ThreadSchedState state;
|
|
|
|
do
|
|
{
|
|
if (TerminationRequested)
|
|
{
|
|
Exit();
|
|
|
|
// As the death of the thread is handled by the CPU emulator, we differ from the official kernel and return here.
|
|
break;
|
|
}
|
|
|
|
KernelContext.CriticalSection.Enter();
|
|
|
|
if (TerminationRequested)
|
|
{
|
|
state = ThreadSchedState.TerminationPending;
|
|
}
|
|
else
|
|
{
|
|
if (_forcePauseFlags != ThreadSchedState.None)
|
|
{
|
|
CombineForcePauseFlags();
|
|
}
|
|
|
|
state = ThreadSchedState.Running;
|
|
}
|
|
|
|
KernelContext.CriticalSection.Leave();
|
|
} while (state == ThreadSchedState.TerminationPending);
|
|
}
|
|
|
|
public void Exit()
|
|
{
|
|
// TODO: Debug event.
|
|
|
|
if (Owner != null)
|
|
{
|
|
Owner.ResourceLimit?.Release(LimitableResource.Thread, 0, 1);
|
|
|
|
_hasBeenReleased = true;
|
|
}
|
|
|
|
KernelContext.CriticalSection.Enter();
|
|
|
|
_forcePauseFlags &= ~ThreadSchedState.ForcePauseMask;
|
|
|
|
bool decRef = ExitImpl();
|
|
|
|
Context.StopRunning();
|
|
|
|
KernelContext.CriticalSection.Leave();
|
|
|
|
if (decRef)
|
|
{
|
|
DecrementReferenceCount();
|
|
}
|
|
}
|
|
|
|
private bool ExitImpl()
|
|
{
|
|
KernelContext.CriticalSection.Enter();
|
|
|
|
SetNewSchedFlags(ThreadSchedState.TerminationPending);
|
|
|
|
bool decRef = Interlocked.Exchange(ref _hasExited, 1) == 0;
|
|
|
|
Signal();
|
|
|
|
KernelContext.CriticalSection.Leave();
|
|
|
|
return decRef;
|
|
}
|
|
|
|
public KernelResult Sleep(long timeout)
|
|
{
|
|
KernelContext.CriticalSection.Enter();
|
|
|
|
if (ShallBeTerminated || SchedFlags == ThreadSchedState.TerminationPending)
|
|
{
|
|
KernelContext.CriticalSection.Leave();
|
|
|
|
return KernelResult.ThreadTerminating;
|
|
}
|
|
|
|
SetNewSchedFlags(ThreadSchedState.Paused);
|
|
|
|
if (timeout > 0)
|
|
{
|
|
KernelContext.TimeManager.ScheduleFutureInvocation(this, timeout);
|
|
}
|
|
|
|
KernelContext.CriticalSection.Leave();
|
|
|
|
if (timeout > 0)
|
|
{
|
|
KernelContext.TimeManager.UnscheduleFutureInvocation(this);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
public void SetPriority(int priority)
|
|
{
|
|
KernelContext.CriticalSection.Enter();
|
|
|
|
BasePriority = priority;
|
|
|
|
UpdatePriorityInheritance();
|
|
|
|
KernelContext.CriticalSection.Leave();
|
|
}
|
|
|
|
public KernelResult SetActivity(bool pause)
|
|
{
|
|
KernelResult result = KernelResult.Success;
|
|
|
|
KernelContext.CriticalSection.Enter();
|
|
|
|
ThreadSchedState lowNibble = SchedFlags & ThreadSchedState.LowMask;
|
|
|
|
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 = ActiveCore;
|
|
|
|
if (oldCore >= 0 && ((AffinityMask >> oldCore) & 1) == 0)
|
|
{
|
|
if (PreferredCore < 0)
|
|
{
|
|
ActiveCore = sizeof(ulong) * 8 - 1 - BitOperations.LeadingZeroCount((ulong)AffinityMask);
|
|
}
|
|
else
|
|
{
|
|
ActiveCore = PreferredCore;
|
|
}
|
|
}
|
|
|
|
AdjustSchedulingForNewAffinity(oldAffinityMask, oldCore);
|
|
}
|
|
}
|
|
|
|
KernelContext.CriticalSection.Leave();
|
|
|
|
return KernelResult.Success;
|
|
}
|
|
|
|
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 (!IsSchedulable)
|
|
{
|
|
// Ensure our thread is running and we have an event.
|
|
StartHostThread();
|
|
|
|
// If the thread is not schedulable, we want to just run or pause
|
|
// it directly as we don't care about priority or the core it is
|
|
// running on in this case.
|
|
if (SchedFlags == ThreadSchedState.Running)
|
|
{
|
|
_schedulerWaitEvent.Set();
|
|
}
|
|
else
|
|
{
|
|
_schedulerWaitEvent.Reset();
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
if (oldFlags == ThreadSchedState.Running)
|
|
{
|
|
// Was running, now it's stopped.
|
|
if (ActiveCore >= 0)
|
|
{
|
|
KernelContext.PriorityQueue.Unschedule(DynamicPriority, ActiveCore, this);
|
|
}
|
|
|
|
for (int core = 0; core < KScheduler.CpuCoresCount; core++)
|
|
{
|
|
if (core != ActiveCore && ((AffinityMask >> core) & 1) != 0)
|
|
{
|
|
KernelContext.PriorityQueue.Unsuggest(DynamicPriority, core, this);
|
|
}
|
|
}
|
|
}
|
|
else if (SchedFlags == ThreadSchedState.Running)
|
|
{
|
|
// Was stopped, now it's running.
|
|
if (ActiveCore >= 0)
|
|
{
|
|
KernelContext.PriorityQueue.Schedule(DynamicPriority, ActiveCore, this);
|
|
}
|
|
|
|
for (int core = 0; core < KScheduler.CpuCoresCount; core++)
|
|
{
|
|
if (core != ActiveCore && ((AffinityMask >> core) & 1) != 0)
|
|
{
|
|
KernelContext.PriorityQueue.Suggest(DynamicPriority, core, this);
|
|
}
|
|
}
|
|
}
|
|
|
|
KernelContext.ThreadReselectionRequested = true;
|
|
}
|
|
|
|
private void AdjustSchedulingForNewPriority(int oldPriority)
|
|
{
|
|
if (SchedFlags != ThreadSchedState.Running || !IsSchedulable)
|
|
{
|
|
return;
|
|
}
|
|
|
|
// Remove thread from the old priority queues.
|
|
if (ActiveCore >= 0)
|
|
{
|
|
KernelContext.PriorityQueue.Unschedule(oldPriority, ActiveCore, this);
|
|
}
|
|
|
|
for (int core = 0; core < KScheduler.CpuCoresCount; core++)
|
|
{
|
|
if (core != ActiveCore && ((AffinityMask >> core) & 1) != 0)
|
|
{
|
|
KernelContext.PriorityQueue.Unsuggest(oldPriority, core, this);
|
|
}
|
|
}
|
|
|
|
// Add thread to the new priority queues.
|
|
KThread currentThread = KernelStatic.GetCurrentThread();
|
|
|
|
if (ActiveCore >= 0)
|
|
{
|
|
if (currentThread == this)
|
|
{
|
|
KernelContext.PriorityQueue.SchedulePrepend(DynamicPriority, ActiveCore, this);
|
|
}
|
|
else
|
|
{
|
|
KernelContext.PriorityQueue.Schedule(DynamicPriority, ActiveCore, this);
|
|
}
|
|
}
|
|
|
|
for (int core = 0; core < KScheduler.CpuCoresCount; core++)
|
|
{
|
|
if (core != ActiveCore && ((AffinityMask >> core) & 1) != 0)
|
|
{
|
|
KernelContext.PriorityQueue.Suggest(DynamicPriority, core, this);
|
|
}
|
|
}
|
|
|
|
KernelContext.ThreadReselectionRequested = true;
|
|
}
|
|
|
|
private void AdjustSchedulingForNewAffinity(long oldAffinityMask, int oldCore)
|
|
{
|
|
if (SchedFlags != ThreadSchedState.Running || DynamicPriority >= KScheduler.PrioritiesCount || !IsSchedulable)
|
|
{
|
|
return;
|
|
}
|
|
|
|
// Remove thread from the old priority queues.
|
|
for (int core = 0; core < KScheduler.CpuCoresCount; core++)
|
|
{
|
|
if (((oldAffinityMask >> core) & 1) != 0)
|
|
{
|
|
if (core == oldCore)
|
|
{
|
|
KernelContext.PriorityQueue.Unschedule(DynamicPriority, core, this);
|
|
}
|
|
else
|
|
{
|
|
KernelContext.PriorityQueue.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 == ActiveCore)
|
|
{
|
|
KernelContext.PriorityQueue.Schedule(DynamicPriority, core, this);
|
|
}
|
|
else
|
|
{
|
|
KernelContext.PriorityQueue.Suggest(DynamicPriority, core, this);
|
|
}
|
|
}
|
|
}
|
|
|
|
KernelContext.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(this);
|
|
}
|
|
|
|
public string GetGuestRegisterPrintout()
|
|
{
|
|
return Owner.Debugger.GetCpuRegisterPrintout(this);
|
|
}
|
|
|
|
public void PrintGuestStackTrace()
|
|
{
|
|
Logger.Info?.Print(LogClass.Cpu, $"Guest stack trace:\n{GetGuestStackTrace()}\n");
|
|
}
|
|
|
|
public void PrintGuestRegisterPrintout()
|
|
{
|
|
Logger.Info?.Print(LogClass.Cpu, $"Guest CPU registers:\n{GetGuestRegisterPrintout()}\n");
|
|
}
|
|
|
|
public void AddCpuTime(long ticks)
|
|
{
|
|
Interlocked.Add(ref _totalTimeRunning, ticks);
|
|
}
|
|
|
|
public void StartHostThread()
|
|
{
|
|
if (_schedulerWaitEvent == null)
|
|
{
|
|
var schedulerWaitEvent = new ManualResetEvent(false);
|
|
|
|
if (Interlocked.Exchange(ref _schedulerWaitEvent, schedulerWaitEvent) == null)
|
|
{
|
|
HostThread.Start();
|
|
}
|
|
else
|
|
{
|
|
schedulerWaitEvent.Dispose();
|
|
}
|
|
}
|
|
}
|
|
|
|
private void ThreadStart()
|
|
{
|
|
_schedulerWaitEvent.WaitOne();
|
|
KernelStatic.SetKernelContext(KernelContext, this);
|
|
|
|
if (_customThreadStart != null)
|
|
{
|
|
_customThreadStart();
|
|
}
|
|
else
|
|
{
|
|
Owner.Context.Execute(Context, _entrypoint);
|
|
}
|
|
|
|
Context.Dispose();
|
|
_schedulerWaitEvent.Dispose();
|
|
}
|
|
|
|
public void MakeUnschedulable()
|
|
{
|
|
_forcedUnschedulable = true;
|
|
}
|
|
|
|
public override bool IsSignaled()
|
|
{
|
|
return _hasExited != 0;
|
|
}
|
|
|
|
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();
|
|
}
|
|
}
|
|
} |