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kernel: Implement thread pinning support (#2840)

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* kernel: Implement Thread pinning support

This commit adds support for 8.x thread pinning changes and implement SynchronizePreemptionState syscall.

Based on kernel 13.x reverse.

* Address gdkchan's comment

* kernel: fix missing critical section leave in SetActivity

Fix Unity games

* Implement missing bits on the interrupt handler and inline update pinning function as it cannot be generic

* Fix some bugs in SetActivity and SetCoreAndAffinityMask

* Address gdkchan's comments
This commit is contained in:
Mary 2021-12-30 10:55:06 +01:00 • committed by GitHub
parent 8544b1445b
commit e96ef6d532
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9 changed files with 436 additions and 95 deletions
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21
Ryujinx.HLE/HOS/Kernel/Threading/KScheduler.cs
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@ -36,6 +36,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Threading
private readonly KThread _idleThread;
public KThread PreviousThread => _previousThread;
public KThread CurrentThread => _currentThread;
public long LastContextSwitchTime { get; private set; }
public long TotalIdleTimeTicks => _idleThread.TotalTimeRunning;
@ -87,6 +88,26 @@ namespace Ryujinx.HLE.HOS.Kernel.Threading
{
KThread thread = context.PriorityQueue.ScheduledThreads(core).FirstOrDefault();
if (thread != null &&
thread.Owner != null &&
thread.Owner.PinnedThreads[core] != null &&
thread.Owner.PinnedThreads[core] != thread)
{
KThread candidate = thread.Owner.PinnedThreads[core];
if (candidate.KernelWaitersCount == 0 && !thread.Owner.IsExceptionUserThread(candidate))
{
if (candidate.SchedFlags == ThreadSchedState.Running)
{
thread = candidate;
}
else
{
thread = null;
}
}
}
scheduledCoresMask |= context.Schedulers[core].SelectThread(thread);
}