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Rewrite scheduler context switch code (#1786)

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* 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
This commit is contained in:
gdkchan 2020-12-09 19:20:05 -03:00 • committed by GitHub
parent 3484265d37
commit 48278905d1
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37 changed files with 1080 additions and 1160 deletions
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59
Ryujinx.HLE/HOS/Kernel/KernelStatic.cs
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@ -1,6 +1,9 @@
using Ryujinx.HLE.HOS.Kernel.Threading;
using Ryujinx.HLE.HOS.Kernel.Common;
using Ryujinx.HLE.HOS.Kernel.Memory;
using Ryujinx.HLE.HOS.Kernel.Process;
using Ryujinx.HLE.HOS.Kernel.Threading;
using System;
using System.Threading.Tasks;
using System.Threading;
namespace Ryujinx.HLE.HOS.Kernel
{
@ -9,30 +12,52 @@ namespace Ryujinx.HLE.HOS.Kernel
[ThreadStatic]
private static KernelContext Context;
public static void YieldUntilCompletion(Action action)
[ThreadStatic]
private static KThread CurrentThread;
public static KernelResult StartInitialProcess(
KernelContext context,
ProcessCreationInfo creationInfo,
ReadOnlySpan<int> capabilities,
int mainThreadPriority,
ThreadStart customThreadStart)
{
YieldUntilCompletion(Task.Factory.StartNew(action));
}
KProcess process = new KProcess(context);
public static void YieldUntilCompletion(Task task)
{
KThread currentThread = Context.Scheduler.GetCurrentThread();
KernelResult result = process.Initialize(
creationInfo,
capabilities,
context.ResourceLimit,
MemoryRegion.Service,
null,
customThreadStart);
Context.CriticalSection.Enter();
currentThread.Reschedule(ThreadSchedState.Paused);
task.ContinueWith((antecedent) =>
if (result != KernelResult.Success)
{
currentThread.Reschedule(ThreadSchedState.Running);
});
return result;
}
Context.CriticalSection.Leave();
process.DefaultCpuCore = 3;
context.Processes.TryAdd(process.Pid, process);
return process.Start(mainThreadPriority, 0x1000UL);
}
internal static void SetKernelContext(KernelContext context)
internal static void SetKernelContext(KernelContext context, KThread thread)
{
Context = context;
CurrentThread = thread;
}
internal static KThread GetCurrentThread()
{
return CurrentThread;
}
internal static KProcess GetCurrentProcess()
{
return GetCurrentThread().Owner;
}
}
}