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Implement inline memory load/store exclusive and ordered (#1413)

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* Implement inline memory load/store exclusive

* Fix missing REX prefix on 8-bits CMPXCHG

* Increment PTC version due to bugfix

* Remove redundant memory checks

* Address PR feedback

* Increment PPTC version
This commit is contained in:
gdkchan 2020-07-30 11:29:28 -03:00 • committed by GitHub
parent 57bb0abda3
commit 9878fc2d3c
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GPG key ID: 4AEE18F83AFDEB23
19 changed files with 385 additions and 376 deletions
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23
Ryujinx.Cpu/MemoryManager.cs
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@ -276,14 +276,6 @@ namespace Ryujinx.Cpu
private void ThrowMemoryNotContiguous() => throw new MemoryNotContiguousException();
// TODO: Remove that once we have proper 8-bits and 16-bits CAS.
public ref T GetRefNoChecks<T>(ulong va) where T : unmanaged
{
MarkRegionAsModified(va, (ulong)Unsafe.SizeOf<T>());
return ref _backingMemory.GetRef<T>(GetPhysicalAddressInternal(va));
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private bool IsContiguousAndMapped(ulong va, int size) => IsContiguous(va, size) && IsMapped(va);
@ -497,7 +489,12 @@ namespace Ryujinx.Cpu
return PteToPa(_pageTable.Read<ulong>((va / PageSize) * PteSize) & ~(0xffffUL << 48)) + (va & PageMask);
}
private void MarkRegionAsModified(ulong va, ulong size)
/// <summary>
/// Marks a region of memory as modified by the CPU.
/// </summary>
/// <param name="va">Virtual address of the region</param>
/// <param name="size">Size of the region</param>
public void MarkRegionAsModified(ulong va, ulong size)
{
ulong endVa = (va + size + PageMask) & ~(ulong)PageMask;
@ -532,9 +529,9 @@ namespace Ryujinx.Cpu
return (ulong)((long)pte - _backingMemory.Pointer.ToInt64());
}
public void Dispose()
{
_pageTable.Dispose();
}
/// <summary>
/// Disposes of resources used by the memory manager.
/// </summary>
public void Dispose() => _pageTable.Dispose();
}
}