Rewrite scheduler context switch code (#1786)

* Rewrite scheduler context switch code

* Fix race in UnmapIpcRestorePermission

* Fix thread exit issue that could leave the scheduler in a invalid state

* Change context switch method to not wait on guest thread, remove spin wait, use SignalAndWait to pass control

* Remove multi-core setting (it is always on now)

* Re-enable assert

* Remove multicore from default config and schema

* Fix race in KTimeManager

2 files changed, 85 insertions, 90 deletions

diff --git a/Ryujinx.HLE/HOS/Kernel/SupervisorCall/Syscall.cs b/Ryujinx.HLE/HOS/Kernel/SupervisorCall/Syscall.cs
index 5e32ca58..418a02f0 100644
--- a/Ryujinx.HLE/HOS/Kernel/SupervisorCall/Syscall.cs
+++ b/Ryujinx.HLE/HOS/Kernel/SupervisorCall/Syscall.cs
@@ -26,7 +26,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
 
         public KernelResult GetProcessId(int handle, out long pid)
         {
-            KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
+            KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
             KProcess process = currentProcess.HandleTable.GetKProcess(handle);
 
@@ -86,7 +86,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                 return KernelResult.InvalidThread;
             }
 
-            KHandleTable handleTable = _context.Scheduler.GetCurrentProcess().HandleTable;
+            KHandleTable handleTable = KernelStatic.GetCurrentProcess().HandleTable;
 
             KProcess process = new KProcess(_context);
 
@@ -137,7 +137,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
 
         public KernelResult StartProcess(int handle, int priority, int cpuCore, ulong mainThreadStackSize)
         {
-            KProcess process = _context.Scheduler.GetCurrentProcess().HandleTable.GetObject<KProcess>(handle);
+            KProcess process = KernelStatic.GetCurrentProcess().HandleTable.GetObject<KProcess>(handle);
 
             if (process == null)
             {
@@ -198,7 +198,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                 return KernelResult.NotFound;
             }
 
-            KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
+            KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
             KernelResult result = currentProcess.HandleTable.ReserveHandle(out handle);
 
@@ -225,7 +225,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
 
         public KernelResult SendSyncRequest(int handle)
         {
-            KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
+            KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
             KClientSession session = currentProcess.HandleTable.GetObject<KClientSession>(handle);
 
@@ -254,7 +254,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                 return KernelResult.InvalidMemState;
             }
 
-            KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
+            KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
             KernelResult result = currentProcess.MemoryManager.BorrowIpcBuffer(messagePtr, messageSize);
 
@@ -303,7 +303,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                 return KernelResult.InvalidMemState;
             }
 
-            KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
+            KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
             KernelResult result = currentProcess.MemoryManager.BorrowIpcBuffer(messagePtr, messageSize);
 
@@ -363,7 +363,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
             serverSessionHandle = 0;
             clientSessionHandle = 0;
 
-            KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
+            KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
             KResourceLimit resourceLimit = currentProcess.ResourceLimit;
 
@@ -424,7 +424,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
         {
             sessionHandle = 0;
 
-            KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
+            KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
             KServerPort serverPort = currentProcess.HandleTable.GetObject<KServerPort>(portHandle);
 
@@ -485,7 +485,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                 return KernelResult.MaximumExceeded;
             }
 
-            KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
+            KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
             ulong copySize = (ulong)((long)handlesCount * 4);
 
@@ -513,7 +513,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
         {
             handleIndex = 0;
 
-            KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
+            KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
             KSynchronizationObject[] syncObjs = new KSynchronizationObject[handles.Length];
 
@@ -582,7 +582,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                 return KernelResult.MaximumExceeded;
             }
 
-            KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
+            KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
             ulong copySize = (ulong)((long)handlesCount * 4);
 
@@ -681,7 +681,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
 
             KPort port = new KPort(_context, maxSessions, isLight, (long)namePtr);
 
-            KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
+            KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
             KernelResult result = currentProcess.HandleTable.GenerateHandle(port.ClientPort, out clientPortHandle);
 
@@ -733,7 +733,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
 
             KPort port = new KPort(_context, maxSessions, false, 0);
 
-            KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
+            KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
             KernelResult result = currentProcess.HandleTable.GenerateHandle(port.ServerPort, out handle);
 
@@ -756,7 +756,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
         {
             clientSessionHandle = 0;
 
-            KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
+            KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
             KClientPort clientPort = currentProcess.HandleTable.GetObject<KClientPort>(clientPortHandle);
 
@@ -814,7 +814,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                 return KernelResult.InvalidSize;
             }
 
-            KProcess process = _context.Scheduler.GetCurrentProcess();
+            KProcess process = KernelStatic.GetCurrentProcess();
 
             return process.MemoryManager.SetHeapSize(size, out position);
         }
@@ -843,7 +843,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                 return KernelResult.InvalidCombination;
             }
 
-            KProcess process = _context.Scheduler.GetCurrentProcess();
+            KProcess process = KernelStatic.GetCurrentProcess();
 
             KernelResult result = process.MemoryManager.SetMemoryAttribute(
                 position,
@@ -871,7 +871,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                 return KernelResult.InvalidMemState;
             }
 
-            KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
+            KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
             if (!currentProcess.MemoryManager.InsideAddrSpace(src, size))
             {
@@ -885,7 +885,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                 return KernelResult.InvalidMemRange;
             }
 
-            KProcess process = _context.Scheduler.GetCurrentProcess();
+            KProcess process = KernelStatic.GetCurrentProcess();
 
             return process.MemoryManager.Map(dst, src, size);
         }
@@ -907,7 +907,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                 return KernelResult.InvalidMemState;
             }
 
-            KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
+            KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
             if (!currentProcess.MemoryManager.InsideAddrSpace(src, size))
             {
@@ -921,14 +921,14 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                 return KernelResult.InvalidMemRange;
             }
 
-            KProcess process = _context.Scheduler.GetCurrentProcess();
+            KProcess process = KernelStatic.GetCurrentProcess();
 
             return process.MemoryManager.Unmap(dst, src, size);
         }
 
         public KernelResult QueryMemory(ulong infoPtr, ulong position, out ulong pageInfo)
         {
-            KProcess process = _context.Scheduler.GetCurrentProcess();
+            KProcess process = KernelStatic.GetCurrentProcess();
 
             KMemoryInfo blkInfo = process.MemoryManager.QueryMemory(position);
 
@@ -968,7 +968,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                 return KernelResult.InvalidPermission;
             }
 
-            KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
+            KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
             KSharedMemory sharedMemory = currentProcess.HandleTable.GetObject<KSharedMemory>(handle);
 
@@ -1009,7 +1009,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                 return KernelResult.InvalidMemState;
             }
 
-            KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
+            KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
             KSharedMemory sharedMemory = currentProcess.HandleTable.GetObject<KSharedMemory>(handle);
 
@@ -1056,7 +1056,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                 return KernelResult.InvalidPermission;
             }
 
-            KProcess process = _context.Scheduler.GetCurrentProcess();
+            KProcess process = KernelStatic.GetCurrentProcess();
 
             KResourceLimit resourceLimit = process.ResourceLimit;
 
@@ -1112,7 +1112,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                 return KernelResult.InvalidMemRange;
             }
 
-            KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
+            KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
             if ((currentProcess.PersonalMmHeapPagesCount & 0xfffffffffffff) == 0)
             {
@@ -1125,7 +1125,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                 return KernelResult.InvalidMemRange;
             }
 
-            KProcess process = _context.Scheduler.GetCurrentProcess();
+            KProcess process = KernelStatic.GetCurrentProcess();
 
             return process.MemoryManager.MapPhysicalMemory(address, size);
         }
@@ -1147,7 +1147,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                 return KernelResult.InvalidMemRange;
             }
 
-            KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
+            KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
             if ((currentProcess.PersonalMmHeapPagesCount & 0xfffffffffffff) == 0)
             {
@@ -1160,7 +1160,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                 return KernelResult.InvalidMemRange;
             }
 
-            KProcess process = _context.Scheduler.GetCurrentProcess();
+            KProcess process = KernelStatic.GetCurrentProcess();
 
             return process.MemoryManager.UnmapPhysicalMemory(address, size);
         }
@@ -1177,7 +1177,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                 return KernelResult.InvalidSize;
             }
 
-            KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
+            KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
             KProcess targetProcess = currentProcess.HandleTable.GetObject<KProcess>(handle);
 
@@ -1214,7 +1214,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                 return KernelResult.InvalidSize;
             }
 
-            KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
+            KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
             KProcess targetProcess = currentProcess.HandleTable.GetObject<KProcess>(handle);
 
@@ -1259,7 +1259,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                 return KernelResult.InvalidPermission;
             }
 
-            KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
+            KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
             KProcess targetProcess = currentProcess.HandleTable.GetObject<KProcess>(handle);
 
@@ -1285,7 +1285,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
 
         public KernelResult TerminateProcess(int handle)
         {
-            KProcess process = _context.Scheduler.GetCurrentProcess();
+            KProcess process = KernelStatic.GetCurrentProcess();
 
             process = process.HandleTable.GetObject<KProcess>(handle);
 
@@ -1293,7 +1293,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
 
             if (process != null)
             {
-                if (process == _context.Scheduler.GetCurrentProcess())
+                if (process == KernelStatic.GetCurrentProcess())
                 {
                     result = KernelResult.Success;
                     process.DecrementToZeroWhileTerminatingCurrent();
@@ -1314,12 +1314,12 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
 
         public void ExitProcess()
         {
-            _context.Scheduler.GetCurrentProcess().TerminateCurrentProcess();
+            KernelStatic.GetCurrentProcess().TerminateCurrentProcess();
         }
 
         public KernelResult SignalEvent(int handle)
         {
-            KProcess process = _context.Scheduler.GetCurrentProcess();
+            KProcess process = KernelStatic.GetCurrentProcess();
 
             KWritableEvent writableEvent = process.HandleTable.GetObject<KWritableEvent>(handle);
 
@@ -1343,7 +1343,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
         {
             KernelResult result;
 
-            KProcess process = _context.Scheduler.GetCurrentProcess();
+            KProcess process = KernelStatic.GetCurrentProcess();
 
             KWritableEvent writableEvent = process.HandleTable.GetObject<KWritableEvent>(handle);
 
@@ -1363,14 +1363,14 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
 
         public KernelResult CloseHandle(int handle)
         {
-            KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
+            KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
             return currentProcess.HandleTable.CloseHandle(handle) ? KernelResult.Success : KernelResult.InvalidHandle;
         }
 
         public KernelResult ResetSignal(int handle)
         {
-            KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
+            KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
             KReadableEvent readableEvent = currentProcess.HandleTable.GetObject<KReadableEvent>(handle);
 
@@ -1399,12 +1399,12 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
 
         public ulong GetSystemTick()
         {
-            return _context.Scheduler.GetCurrentThread().Context.CntpctEl0;
+            return KernelStatic.GetCurrentThread().Context.CntpctEl0;
         }
 
         public void Break(ulong reason)
         {
-            KThread currentThread = _context.Scheduler.GetCurrentThread();
+            KThread currentThread = KernelStatic.GetCurrentThread();
 
             if ((reason & (1UL << 31)) == 0)
             {
@@ -1429,7 +1429,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
 
         public void OutputDebugString(ulong strPtr, ulong size)
         {
-            KProcess process = _context.Scheduler.GetCurrentProcess();
+            KProcess process = KernelStatic.GetCurrentProcess();
 
             string str = MemoryHelper.ReadAsciiString(process.CpuMemory, (long)strPtr, (long)size);
 
@@ -1466,7 +1466,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                             return KernelResult.InvalidCombination;
                         }
 
-                        KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
+                        KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
                         KProcess process = currentProcess.HandleTable.GetKProcess(handle);
 
@@ -1537,7 +1537,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                             return KernelResult.InvalidCombination;
                         }
 
-                        value = _context.Scheduler.GetCurrentProcess().Debug ? 1 : 0;
+                        value = KernelStatic.GetCurrentProcess().Debug ? 1 : 0;
 
                         break;
                     }
@@ -1554,7 +1554,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                             return KernelResult.InvalidCombination;
                         }
 
-                        KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
+                        KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
                         if (currentProcess.ResourceLimit != null)
                         {
@@ -1581,14 +1581,14 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                             return KernelResult.InvalidHandle;
                         }
 
-                        int currentCore = _context.Scheduler.GetCurrentThread().CurrentCore;
+                        int currentCore = KernelStatic.GetCurrentThread().CurrentCore;
 
                         if (subId != -1 && subId != currentCore)
                         {
                             return KernelResult.InvalidCombination;
                         }
 
-                        value = _context.Scheduler.CoreContexts[currentCore].TotalIdleTimeTicks;
+                        value = KTimeManager.ConvertHostTicksToTicks(_context.Schedulers[currentCore].TotalIdleTimeTicks);
 
                         break;
                     }
@@ -1605,8 +1605,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                             return KernelResult.InvalidCombination;
                         }
 
-                        KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
-
+                        KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
                         value = currentProcess.RandomEntropy[subId];
 
@@ -1620,14 +1619,14 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                             return KernelResult.InvalidCombination;
                         }
 
-                        KThread thread = _context.Scheduler.GetCurrentProcess().HandleTable.GetKThread(handle);
+                        KThread thread = KernelStatic.GetCurrentProcess().HandleTable.GetKThread(handle);
 
                         if (thread == null)
                         {
                             return KernelResult.InvalidHandle;
                         }
 
-                        KThread currentThread = _context.Scheduler.GetCurrentThread();
+                        KThread currentThread = KernelStatic.GetCurrentThread();
 
                         int currentCore = currentThread.CurrentCore;
 
@@ -1636,13 +1635,13 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                             return KernelResult.Success;
                         }
 
-                        KCoreContext coreContext = _context.Scheduler.CoreContexts[currentCore];
+                        KScheduler scheduler = _context.Schedulers[currentCore];
 
-                        long timeDelta = PerformanceCounter.ElapsedMilliseconds - coreContext.LastContextSwitchTime;
+                        long timeDelta = PerformanceCounter.ElapsedTicks - scheduler.LastContextSwitchTime;
 
                         if (subId != -1)
                         {
-                            value = KTimeManager.ConvertMillisecondsToTicks(timeDelta);
+                            value = KTimeManager.ConvertHostTicksToTicks(timeDelta);
                         }
                         else
                         {
@@ -1653,7 +1652,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                                 totalTimeRunning += timeDelta;
                             }
 
-                            value = KTimeManager.ConvertMillisecondsToTicks(totalTimeRunning);
+                            value = KTimeManager.ConvertHostTicksToTicks(totalTimeRunning);
                         }
 
                         break;
@@ -1669,7 +1668,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
         {
             KEvent Event = new KEvent(_context);
 
-            KProcess process = _context.Scheduler.GetCurrentProcess();
+            KProcess process = KernelStatic.GetCurrentProcess();
 
             KernelResult result = process.HandleTable.GenerateHandle(Event.WritableEvent, out wEventHandle);
 
@@ -1701,7 +1700,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
 
             if (maxCount != 0)
             {
-                KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
+                KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
                 ulong copySize = (ulong)maxCount * 8;
 
@@ -1807,7 +1806,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
         {
             handle = 0;
 
-            KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
+            KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
             if (cpuCore == -2)
             {
@@ -1844,7 +1843,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
 
             if (result == KernelResult.Success)
             {
-                KProcess process = _context.Scheduler.GetCurrentProcess();
+                KProcess process = KernelStatic.GetCurrentProcess();
 
                 result = process.HandleTable.GenerateHandle(thread, out handle);
             }
@@ -1860,7 +1859,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
 
         public KernelResult StartThread(int handle)
         {
-            KProcess process = _context.Scheduler.GetCurrentProcess();
+            KProcess process = KernelStatic.GetCurrentProcess();
 
             KThread thread = process.HandleTable.GetKThread(handle);
 
@@ -1887,35 +1886,31 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
 
         public void ExitThread()
         {
-            KThread currentThread = _context.Scheduler.GetCurrentThread();
-
-            _context.Scheduler.ExitThread(currentThread);
+            KThread currentThread = KernelStatic.GetCurrentThread();
 
             currentThread.Exit();
         }
 
         public void SleepThread(long timeout)
         {
-            KThread currentThread = _context.Scheduler.GetCurrentThread();
-
             if (timeout < 1)
             {
                 switch (timeout)
                 {
-                    case 0: currentThread.Yield(); break;
-                    case -1: currentThread.YieldWithLoadBalancing(); break;
-                    case -2: currentThread.YieldAndWaitForLoadBalancing(); break;
+                    case 0: KScheduler.Yield(_context); break;
+                    case -1: KScheduler.YieldWithLoadBalancing(_context); break;
+                    case -2: KScheduler.YieldToAnyThread(_context); break;
                 }
             }
             else
             {
-                currentThread.Sleep(timeout);
+                KernelStatic.GetCurrentThread().Sleep(timeout);
             }
         }
 
         public KernelResult GetThreadPriority(int handle, out int priority)
         {
-            KProcess process = _context.Scheduler.GetCurrentProcess();
+            KProcess process = KernelStatic.GetCurrentProcess();
 
             KThread thread = process.HandleTable.GetKThread(handle);
 
@@ -1937,7 +1932,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
         {
             // TODO: NPDM check.
 
-            KProcess process = _context.Scheduler.GetCurrentProcess();
+            KProcess process = KernelStatic.GetCurrentProcess();
 
             KThread thread = process.HandleTable.GetKThread(handle);
 
@@ -1953,7 +1948,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
 
         public KernelResult GetThreadCoreMask(int handle, out int preferredCore, out long affinityMask)
         {
-            KProcess process = _context.Scheduler.GetCurrentProcess();
+            KProcess process = KernelStatic.GetCurrentProcess();
 
             KThread thread = process.HandleTable.GetKThread(handle);
 
@@ -1975,7 +1970,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
 
         public KernelResult SetThreadCoreMask(int handle, int preferredCore, long affinityMask)
         {
-            KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
+            KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
             if (preferredCore == -2)
             {
@@ -2009,7 +2004,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                 }
             }
 
-            KProcess process = _context.Scheduler.GetCurrentProcess();
+            KProcess process = KernelStatic.GetCurrentProcess();
 
             KThread thread = process.HandleTable.GetKThread(handle);
 
@@ -2023,12 +2018,12 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
 
         public int GetCurrentProcessorNumber()
         {
-            return _context.Scheduler.GetCurrentThread().CurrentCore;
+            return KernelStatic.GetCurrentThread().CurrentCore;
         }
 
         public KernelResult GetThreadId(int handle, out long threadUid)
         {
-            KProcess process = _context.Scheduler.GetCurrentProcess();
+            KProcess process = KernelStatic.GetCurrentProcess();
 
             KThread thread = process.HandleTable.GetKThread(handle);
 
@@ -2048,7 +2043,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
 
         public KernelResult SetThreadActivity(int handle, bool pause)
         {
-            KProcess process = _context.Scheduler.GetCurrentProcess();
+            KProcess process = KernelStatic.GetCurrentProcess();
 
             KThread thread = process.HandleTable.GetObject<KThread>(handle);
 
@@ -2062,7 +2057,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                 return KernelResult.InvalidHandle;
             }
 
-            if (thread == _context.Scheduler.GetCurrentThread())
+            if (thread == KernelStatic.GetCurrentThread())
             {
                 return KernelResult.InvalidThread;
             }
@@ -2072,8 +2067,8 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
 
         public KernelResult GetThreadContext3(ulong address, int handle)
         {
-            KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
-            KThread currentThread = _context.Scheduler.GetCurrentThread();
+            KProcess currentProcess = KernelStatic.GetCurrentProcess();
+            KThread currentThread = KernelStatic.GetCurrentThread();
 
             KThread thread = currentProcess.HandleTable.GetObject<KThread>(handle);
 
@@ -2190,13 +2185,13 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                 return KernelResult.MaximumExceeded;
             }
 
-            KThread currentThread = _context.Scheduler.GetCurrentThread();
+            KThread currentThread = KernelStatic.GetCurrentThread();
 
             var syncObjs = new Span<KSynchronizationObject>(currentThread.WaitSyncObjects).Slice(0, handlesCount);
 
             if (handlesCount != 0)
             {
-                KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
+                KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
                 if (currentProcess.MemoryManager.AddrSpaceStart > handlesPtr)
                 {
@@ -2267,7 +2262,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
 
         public KernelResult CancelSynchronization(int handle)
         {
-            KProcess process = _context.Scheduler.GetCurrentProcess();
+            KProcess process = KernelStatic.GetCurrentProcess();
 
             KThread thread = process.HandleTable.GetKThread(handle);
 
@@ -2293,7 +2288,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                 return KernelResult.InvalidAddress;
             }
 
-            KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
+            KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
             return currentProcess.AddressArbiter.ArbitrateLock(ownerHandle, mutexAddress, requesterHandle);
         }
@@ -2310,7 +2305,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                 return KernelResult.InvalidAddress;
             }
 
-            KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
+            KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
             return currentProcess.AddressArbiter.ArbitrateUnlock(mutexAddress);
         }
@@ -2331,7 +2326,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                 return KernelResult.InvalidAddress;
             }
 
-            KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
+            KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
             return currentProcess.AddressArbiter.WaitProcessWideKeyAtomic(
                 mutexAddress,
@@ -2342,7 +2337,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
 
         public KernelResult SignalProcessWideKey(ulong address, int count)
         {
-            KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
+            KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
             currentProcess.AddressArbiter.SignalProcessWideKey(address, count);
 
@@ -2361,7 +2356,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                 return KernelResult.InvalidAddress;
             }
 
-            KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
+            KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
             return type switch
             {
@@ -2387,7 +2382,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                 return KernelResult.InvalidAddress;
             }
 
-            KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
+            KProcess currentProcess = KernelStatic.GetCurrentProcess();
 
             return type switch
             {
diff --git a/Ryujinx.HLE/HOS/Kernel/SupervisorCall/SyscallHandler.cs b/Ryujinx.HLE/HOS/Kernel/SupervisorCall/SyscallHandler.cs
index 2d1a3eea..b4e7a0bf 100644
--- a/Ryujinx.HLE/HOS/Kernel/SupervisorCall/SyscallHandler.cs
+++ b/Ryujinx.HLE/HOS/Kernel/SupervisorCall/SyscallHandler.cs
@@ -49,7 +49,7 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
 
         private void PostSvcHandler()
         {
-            KThread currentThread = _context.Scheduler.GetCurrentThread();
+            KThread currentThread = KernelStatic.GetCurrentThread();
 
             currentThread.HandlePostSyscall();
         }