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More flexible memory manager (#307)

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* Keep track mapped buffers with fixed offsets

* Started rewriting the memory manager

* Initial support for MapPhysicalMemory and UnmapPhysicalMemory, other tweaks

* MapPhysicalMemory/UnmapPhysicalMemory support, other tweaks

* Rebased

* Optimize the map/unmap physical memory svcs

* Integrate shared font support

* Fix address space reserve alignment

* Some fixes related to gpu memory mapping

* Some cleanup

* Only try uploading const buffers that are really used

* Check if memory region is contiguous

* Rebased

* Add missing count increment on IsRegionModified

* Check for reads/writes outside of the address space, optimize translation with a tail call
This commit is contained in:
gdkchan 2018-08-15 15:59:51 -03:00 • committed by GitHub
parent 76d95dee05
commit c393cdf8e3
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GPG key ID: 4AEE18F83AFDEB23
64 changed files with 3289 additions and 1852 deletions
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24
ChocolArm64/Memory/AMemoryHelper.cs
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@ -26,12 +26,9 @@ namespace ChocolArm64.Memory
{
long Size = Marshal.SizeOf<T>();
if ((ulong)(Position + Size) > AMemoryMgr.AddrSize)
{
throw new ArgumentOutOfRangeException(nameof(Position));
}
Memory.EnsureRangeIsValid(Position, Size);
IntPtr Ptr = new IntPtr((byte*)Memory.Ram + Position);
IntPtr Ptr = (IntPtr)Memory.Translate(Position);
return Marshal.PtrToStructure<T>(Ptr);
}
@ -40,12 +37,9 @@ namespace ChocolArm64.Memory
{
long Size = Marshal.SizeOf<T>();
if ((ulong)(Position + Size) > AMemoryMgr.AddrSize)
{
throw new ArgumentOutOfRangeException(nameof(Position));
}
Memory.EnsureRangeIsValid(Position, Size);
IntPtr Ptr = new IntPtr((byte*)Memory.Ram + Position);
IntPtr Ptr = (IntPtr)Memory.TranslateWrite(Position);
Marshal.StructureToPtr<T>(Value, Ptr, false);
}
@ -69,15 +63,5 @@ namespace ChocolArm64.Memory
return Encoding.ASCII.GetString(MS.ToArray());
}
}
public static long PageRoundUp(long Value)
{
return (Value + AMemoryMgr.PageMask) & ~AMemoryMgr.PageMask;
}
public static long PageRoundDown(long Value)
{
return Value & ~AMemoryMgr.PageMask;
}
}
}