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cores rework (#505)

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This PR changes the core count to be defined in the device instead of
being a const value.
This is mostly a change for future features I want to implement and
should not impact any functionality.
The console will now log the range of cores requested from the
application, and for now, if the requested range is not 0 to 2 (the 3
cores used for application emulation), it will give an error message
which tells the user to contact me on discord. I'm doing this because
I'm interested in finding applications/games that don't use 3 cores and
the error will be removed in the future once I've gotten enough data.
This commit is contained in:
LotP1 2025-01-10 04:43:18 +01:00 • committed by GitHub
parent 845c86f545
commit 918ec1bde3
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10 changed files with 35 additions and 19 deletions
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18
src/Ryujinx.HLE/HOS/Kernel/Threading/KScheduler.cs
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@ -9,13 +9,11 @@ namespace Ryujinx.HLE.HOS.Kernel.Threading
partial class KScheduler : IDisposable
{
public const int PrioritiesCount = 64;
public const int CpuCoresCount = 4;
public static int CpuCoresCount;
private const int RoundRobinTimeQuantumMs = 10;
private static readonly int[] _preemptionPriorities = { 59, 59, 59, 63 };
private static readonly int[] _srcCoresHighestPrioThreads = new int[CpuCoresCount];
private static int[] _srcCoresHighestPrioThreads;
private readonly KernelContext _context;
private readonly int _coreId;
@ -47,6 +45,16 @@ namespace Ryujinx.HLE.HOS.Kernel.Threading
_coreId = coreId;
_currentThread = null;
if (_srcCoresHighestPrioThreads == null)
{
_srcCoresHighestPrioThreads = new int[CpuCoresCount];
}
}
private static int PreemptionPriorities(int index)
{
return index == CpuCoresCount - 1 ? 63 : 59;
}
public static ulong SelectThreads(KernelContext context)
@ -437,7 +445,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Threading
for (int core = 0; core < CpuCoresCount; core++)
{
RotateScheduledQueue(context, core, _preemptionPriorities[core]);
RotateScheduledQueue(context, core, PreemptionPriorities(core));
}
context.CriticalSection.Leave();