forked from Mirror/Ryujinx
Add support to IVirtualMemoryManager for zero-copy reads (#6251)
* - WritableRegion: enable wrapping IMemoryOwner<byte> - IVirtualMemoryManager impls of GetWritableRegion() use pooled memory when region is non-contiguous. - IVirtualMemoryManager: add GetReadOnlySequence() and impls - ByteMemoryPool: add new method RentCopy() - ByteMemoryPool: make class static, remove ctor and singleton field from earlier impl * - BytesReadOnlySequenceSegment: move from Ryujinx.Common.Memory to Ryujinx.Memory - BytesReadOnlySequenceSegment: add IsContiguousWith() and Replace() methods - VirtualMemoryManagerBase: - remove generic type parameters, instead use ulong for virtual addresses and nuint for host/physical addresses - implement IWritableBlock - add virtual GetReadOnlySequence() with coalescing of contiguous segments - add virtual GetSpan() - add virtual GetWritableRegion() - add abstract IsMapped() - add virtual MapForeign(ulong, nuint, ulong) - add virtual Read<T>() - add virtual Read(ulong, Span<byte>) - add virtual ReadTracked<T>() - add virtual SignalMemoryTracking() - add virtual Write() - add virtual Write<T>() - add virtual WriteUntracked() - add virtual WriteWithRedundancyCheck() - VirtualMemoryManagerRefCountedBase: remove generic type parameters - AddressSpaceManager: remove redundant methods, add required overrides - HvMemoryManager: remove redundant methods, add required overrides, add overrides for _invalidAccessHandler handling - MemoryManager: remove redundant methods, add required overrides, add overrides for _invalidAccessHandler handling - MemoryManagerHostMapped: remove redundant methods, add required overrides, add overrides for _invalidAccessHandler handling - NativeMemoryManager: add get properties for Pointer and Length - throughout: removed invalid <inheritdoc/> comments * make HvMemoryManager class sealed * remove unused method * adjust MemoryManagerHostTracked * let MemoryManagerHostTracked override WriteImpl()
This commit is contained in:
jhorv
GitHub
parent
8e74fa3456
commit
5def0429f8
14 changed files with 635 additions and 819 deletions
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@ -4,7 +4,7 @@ using System.Threading;
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namespace Ryujinx.Common.Memory
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{
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public sealed partial class ByteMemoryPool
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public partial class ByteMemoryPool
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{
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/// <summary>
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/// Represents a <see cref="IMemoryOwner{Byte}"/> that wraps an array rented from
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@ -6,24 +6,8 @@ namespace Ryujinx.Common.Memory
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/// <summary>
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/// Provides a pool of re-usable byte array instances.
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/// </summary>
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public sealed partial class ByteMemoryPool
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public static partial class ByteMemoryPool
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{
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private static readonly ByteMemoryPool _shared = new();
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/// <summary>
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/// Constructs a <see cref="ByteMemoryPool"/> instance. Private to force access through
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/// the <see cref="ByteMemoryPool.Shared"/> instance.
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/// </summary>
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private ByteMemoryPool()
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{
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// No implementation
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}
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/// <summary>
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/// Retrieves a shared <see cref="ByteMemoryPool"/> instance.
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/// </summary>
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public static ByteMemoryPool Shared => _shared;
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/// <summary>
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/// Returns the maximum buffer size supported by this pool.
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/// </summary>
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@ -95,6 +79,20 @@ namespace Ryujinx.Common.Memory
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return buffer;
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}
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/// <summary>
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/// Copies <paramref name="buffer"/> into a newly rented byte memory buffer.
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/// </summary>
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/// <param name="buffer">The byte buffer to copy</param>
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/// <returns>A <see cref="IMemoryOwner{Byte}"/> wrapping the rented memory with <paramref name="buffer"/> copied to it</returns>
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public static IMemoryOwner<byte> RentCopy(ReadOnlySpan<byte> buffer)
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{
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var copy = RentImpl(buffer.Length);
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buffer.CopyTo(copy.Memory.Span);
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return copy;
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}
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private static ByteMemoryPoolBuffer RentImpl(int length)
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{
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if ((uint)length > Array.MaxLength)
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@ -3,10 +3,10 @@ using Ryujinx.Memory;
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using Ryujinx.Memory.Range;
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using Ryujinx.Memory.Tracking;
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using System;
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using System.Buffers;
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using System.Collections.Generic;
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using System.Linq;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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using System.Runtime.Versioning;
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namespace Ryujinx.Cpu.AppleHv
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@ -15,7 +15,7 @@ namespace Ryujinx.Cpu.AppleHv
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/// Represents a CPU memory manager which maps guest virtual memory directly onto the Hypervisor page table.
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/// </summary>
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[SupportedOSPlatform("macos")]
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public class HvMemoryManager : VirtualMemoryManagerRefCountedBase<ulong, ulong>, IMemoryManager, IVirtualMemoryManagerTracked, IWritableBlock
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public sealed class HvMemoryManager : VirtualMemoryManagerRefCountedBase, IMemoryManager, IVirtualMemoryManagerTracked
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{
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private readonly InvalidAccessHandler _invalidAccessHandler;
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@ -96,12 +96,6 @@ namespace Ryujinx.Cpu.AppleHv
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}
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}
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/// <inheritdoc/>
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public void MapForeign(ulong va, nuint hostPointer, ulong size)
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{
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throw new NotSupportedException();
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}
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/// <inheritdoc/>
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public void Unmap(ulong va, ulong size)
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{
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@ -126,20 +120,11 @@ namespace Ryujinx.Cpu.AppleHv
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}
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}
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/// <inheritdoc/>
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public T Read<T>(ulong va) where T : unmanaged
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{
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return MemoryMarshal.Cast<byte, T>(GetSpan(va, Unsafe.SizeOf<T>()))[0];
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}
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/// <inheritdoc/>
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public T ReadTracked<T>(ulong va) where T : unmanaged
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public override T ReadTracked<T>(ulong va)
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{
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try
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{
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SignalMemoryTracking(va, (ulong)Unsafe.SizeOf<T>(), false);
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return Read<T>(va);
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return base.ReadTracked<T>(va);
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}
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catch (InvalidMemoryRegionException)
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{
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@ -152,7 +137,6 @@ namespace Ryujinx.Cpu.AppleHv
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}
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}
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/// <inheritdoc/>
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public override void Read(ulong va, Span<byte> data)
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{
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try
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@ -168,101 +152,11 @@ namespace Ryujinx.Cpu.AppleHv
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}
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}
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/// <inheritdoc/>
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public void Write<T>(ulong va, T value) where T : unmanaged
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{
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Write(va, MemoryMarshal.Cast<T, byte>(MemoryMarshal.CreateSpan(ref value, 1)));
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}
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/// <inheritdoc/>
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public void Write(ulong va, ReadOnlySpan<byte> data)
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{
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if (data.Length == 0)
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{
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return;
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}
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SignalMemoryTracking(va, (ulong)data.Length, true);
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WriteImpl(va, data);
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}
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/// <inheritdoc/>
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public void WriteUntracked(ulong va, ReadOnlySpan<byte> data)
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{
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if (data.Length == 0)
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{
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return;
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}
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WriteImpl(va, data);
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}
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/// <inheritdoc/>
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public bool WriteWithRedundancyCheck(ulong va, ReadOnlySpan<byte> data)
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{
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if (data.Length == 0)
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{
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return false;
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}
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SignalMemoryTracking(va, (ulong)data.Length, false);
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if (IsContiguousAndMapped(va, data.Length))
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{
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var target = _backingMemory.GetSpan(GetPhysicalAddressInternal(va), data.Length);
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bool changed = !data.SequenceEqual(target);
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if (changed)
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{
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data.CopyTo(target);
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}
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return changed;
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}
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else
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{
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WriteImpl(va, data);
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return true;
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}
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}
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private void WriteImpl(ulong va, ReadOnlySpan<byte> data)
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public override void Write(ulong va, ReadOnlySpan<byte> data)
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{
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try
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{
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AssertValidAddressAndSize(va, (ulong)data.Length);
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if (IsContiguousAndMapped(va, data.Length))
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{
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data.CopyTo(_backingMemory.GetSpan(GetPhysicalAddressInternal(va), data.Length));
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}
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else
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{
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int offset = 0, size;
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if ((va & PageMask) != 0)
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{
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ulong pa = GetPhysicalAddressChecked(va);
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size = Math.Min(data.Length, PageSize - (int)(va & PageMask));
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data[..size].CopyTo(_backingMemory.GetSpan(pa, size));
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offset += size;
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}
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for (; offset < data.Length; offset += size)
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{
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ulong pa = GetPhysicalAddressChecked(va + (ulong)offset);
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size = Math.Min(data.Length - offset, PageSize);
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data.Slice(offset, size).CopyTo(_backingMemory.GetSpan(pa, size));
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}
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}
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base.Write(va, data);
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}
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catch (InvalidMemoryRegionException)
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{
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@ -273,61 +167,38 @@ namespace Ryujinx.Cpu.AppleHv
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}
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}
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/// <inheritdoc/>
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public ReadOnlySpan<byte> GetSpan(ulong va, int size, bool tracked = false)
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public override void WriteUntracked(ulong va, ReadOnlySpan<byte> data)
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{
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if (size == 0)
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try
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{
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return ReadOnlySpan<byte>.Empty;
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base.WriteUntracked(va, data);
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}
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if (tracked)
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catch (InvalidMemoryRegionException)
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{
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SignalMemoryTracking(va, (ulong)size, false);
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if (_invalidAccessHandler == null || !_invalidAccessHandler(va))
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{
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throw;
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}
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if (IsContiguousAndMapped(va, size))
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{
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return _backingMemory.GetSpan(GetPhysicalAddressInternal(va), size);
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}
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else
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{
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Span<byte> data = new byte[size];
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base.Read(va, data);
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return data;
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}
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}
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/// <inheritdoc/>
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public WritableRegion GetWritableRegion(ulong va, int size, bool tracked = false)
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public override ReadOnlySequence<byte> GetReadOnlySequence(ulong va, int size, bool tracked = false)
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{
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if (size == 0)
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try
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{
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return new WritableRegion(null, va, Memory<byte>.Empty);
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return base.GetReadOnlySequence(va, size, tracked);
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}
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catch (InvalidMemoryRegionException)
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{
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if (_invalidAccessHandler == null || !_invalidAccessHandler(va))
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{
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throw;
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}
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if (tracked)
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{
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SignalMemoryTracking(va, (ulong)size, true);
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}
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if (IsContiguousAndMapped(va, size))
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{
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return new WritableRegion(null, va, _backingMemory.GetMemory(GetPhysicalAddressInternal(va), size));
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}
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else
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{
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Memory<byte> memory = new byte[size];
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base.Read(va, memory.Span);
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return new WritableRegion(this, va, memory);
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return ReadOnlySequence<byte>.Empty;
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}
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}
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/// <inheritdoc/>
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public ref T GetRef<T>(ulong va) where T : unmanaged
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{
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if (!IsContiguous(va, Unsafe.SizeOf<T>()))
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@ -340,9 +211,8 @@ namespace Ryujinx.Cpu.AppleHv
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return ref _backingMemory.GetRef<T>(GetPhysicalAddressChecked(va));
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}
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/// <inheritdoc/>
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public bool IsMapped(ulong va)
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public override bool IsMapped(ulong va)
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{
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return ValidateAddress(va) && _pages.IsMapped(va);
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}
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@ -355,39 +225,6 @@ namespace Ryujinx.Cpu.AppleHv
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return _pages.IsRangeMapped(va, size);
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}
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private static void ThrowMemoryNotContiguous() => throw new MemoryNotContiguousException();
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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private bool IsContiguousAndMapped(ulong va, int size) => IsContiguous(va, size) && IsMapped(va);
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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private bool IsContiguous(ulong va, int size)
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{
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if (!ValidateAddress(va) || !ValidateAddressAndSize(va, (ulong)size))
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{
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return false;
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}
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int pages = GetPagesCount(va, (uint)size, out va);
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for (int page = 0; page < pages - 1; page++)
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{
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if (!ValidateAddress(va + PageSize))
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{
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return false;
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}
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if (GetPhysicalAddressInternal(va) + PageSize != GetPhysicalAddressInternal(va + PageSize))
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{
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return false;
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}
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va += PageSize;
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}
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return true;
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}
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/// <inheritdoc/>
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public IEnumerable<HostMemoryRange> GetHostRegions(ulong va, ulong size)
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{
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@ -464,11 +301,10 @@ namespace Ryujinx.Cpu.AppleHv
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return regions;
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}
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/// <inheritdoc/>
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/// <remarks>
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/// This function also validates that the given range is both valid and mapped, and will throw if it is not.
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/// </remarks>
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public void SignalMemoryTracking(ulong va, ulong size, bool write, bool precise = false, int? exemptId = null)
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public override void SignalMemoryTracking(ulong va, ulong size, bool write, bool precise = false, int? exemptId = null)
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{
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AssertValidAddressAndSize(va, size);
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@ -481,24 +317,6 @@ namespace Ryujinx.Cpu.AppleHv
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_pages.SignalMemoryTracking(Tracking, va, size, write, exemptId);
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}
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/// <summary>
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/// Computes the number of pages in a virtual address range.
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/// </summary>
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/// <param name="va">Virtual address of the range</param>
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/// <param name="size">Size of the range</param>
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/// <param name="startVa">The virtual address of the beginning of the first page</param>
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/// <remarks>This function does not differentiate between allocated and unallocated pages.</remarks>
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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private static int GetPagesCount(ulong va, ulong size, out ulong startVa)
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{
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// WARNING: Always check if ulong does not overflow during the operations.
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startVa = va & ~(ulong)PageMask;
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ulong vaSpan = (va - startVa + size + PageMask) & ~(ulong)PageMask;
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return (int)(vaSpan / PageSize);
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}
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/// <inheritdoc/>
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public void Reprotect(ulong va, ulong size, MemoryPermission protection)
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{
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// TODO
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@ -535,7 +353,7 @@ namespace Ryujinx.Cpu.AppleHv
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return Tracking.BeginSmartGranularTracking(address, size, granularity, id);
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}
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private ulong GetPhysicalAddressChecked(ulong va)
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private nuint GetPhysicalAddressChecked(ulong va)
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{
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if (!IsMapped(va))
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{
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@ -545,9 +363,9 @@ namespace Ryujinx.Cpu.AppleHv
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return GetPhysicalAddressInternal(va);
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}
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private ulong GetPhysicalAddressInternal(ulong va)
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private nuint GetPhysicalAddressInternal(ulong va)
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{
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return _pageTable.Read(va) + (va & PageMask);
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return (nuint)(_pageTable.Read(va) + (va & PageMask));
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}
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/// <summary>
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@ -558,10 +376,17 @@ namespace Ryujinx.Cpu.AppleHv
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_addressSpace.Dispose();
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}
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protected override Span<byte> GetPhysicalAddressSpan(ulong pa, int size)
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protected override Memory<byte> GetPhysicalAddressMemory(nuint pa, int size)
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=> _backingMemory.GetMemory(pa, size);
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protected override Span<byte> GetPhysicalAddressSpan(nuint pa, int size)
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=> _backingMemory.GetSpan(pa, size);
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protected override ulong TranslateVirtualAddressForRead(ulong va)
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protected override nuint TranslateVirtualAddressChecked(ulong va)
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=> GetPhysicalAddressChecked(va);
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protected override nuint TranslateVirtualAddressUnchecked(ulong va)
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=> GetPhysicalAddressInternal(va);
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}
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}
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|
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@ -3,6 +3,7 @@ using Ryujinx.Memory;
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using Ryujinx.Memory.Range;
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using Ryujinx.Memory.Tracking;
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using System;
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using System.Buffers;
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using System.Collections.Generic;
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using System.Linq;
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using System.Runtime.CompilerServices;
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@ -14,7 +15,7 @@ namespace Ryujinx.Cpu.Jit
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/// <summary>
|
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/// Represents a CPU memory manager.
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/// </summary>
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public sealed class MemoryManager : VirtualMemoryManagerRefCountedBase<ulong, ulong>, IMemoryManager, IVirtualMemoryManagerTracked, IWritableBlock
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public sealed class MemoryManager : VirtualMemoryManagerRefCountedBase, IMemoryManager, IVirtualMemoryManagerTracked
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{
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private const int PteSize = 8;
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@ -97,12 +98,6 @@ namespace Ryujinx.Cpu.Jit
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Tracking.Map(oVa, size);
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}
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/// <inheritdoc/>
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public void MapForeign(ulong va, nuint hostPointer, ulong size)
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{
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throw new NotSupportedException();
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}
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/// <inheritdoc/>
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public void Unmap(ulong va, ulong size)
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{
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@ -128,20 +123,11 @@ namespace Ryujinx.Cpu.Jit
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}
|
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}
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/// <inheritdoc/>
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public T Read<T>(ulong va) where T : unmanaged
|
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{
|
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return MemoryMarshal.Cast<byte, T>(GetSpan(va, Unsafe.SizeOf<T>()))[0];
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}
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/// <inheritdoc/>
|
||||
public T ReadTracked<T>(ulong va) where T : unmanaged
|
||||
public override T ReadTracked<T>(ulong va)
|
||||
{
|
||||
try
|
||||
{
|
||||
SignalMemoryTracking(va, (ulong)Unsafe.SizeOf<T>(), false);
|
||||
|
||||
return Read<T>(va);
|
||||
return base.ReadTracked<T>(va);
|
||||
}
|
||||
catch (InvalidMemoryRegionException)
|
||||
{
|
||||
|
|
@ -190,117 +176,11 @@ namespace Ryujinx.Cpu.Jit
|
|||
}
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
public void Write<T>(ulong va, T value) where T : unmanaged
|
||||
{
|
||||
Write(va, MemoryMarshal.Cast<T, byte>(MemoryMarshal.CreateSpan(ref value, 1)));
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
public void Write(ulong va, ReadOnlySpan<byte> data)
|
||||
{
|
||||
if (data.Length == 0)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
SignalMemoryTracking(va, (ulong)data.Length, true);
|
||||
|
||||
WriteImpl(va, data);
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
public void WriteGuest<T>(ulong va, T value) where T : unmanaged
|
||||
{
|
||||
Span<byte> data = MemoryMarshal.Cast<T, byte>(MemoryMarshal.CreateSpan(ref value, 1));
|
||||
|
||||
SignalMemoryTrackingImpl(va, (ulong)data.Length, true, true);
|
||||
|
||||
WriteImpl(va, data);
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
public void WriteUntracked(ulong va, ReadOnlySpan<byte> data)
|
||||
{
|
||||
if (data.Length == 0)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
WriteImpl(va, data);
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
public bool WriteWithRedundancyCheck(ulong va, ReadOnlySpan<byte> data)
|
||||
{
|
||||
if (data.Length == 0)
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
SignalMemoryTracking(va, (ulong)data.Length, false);
|
||||
|
||||
if (IsContiguousAndMapped(va, data.Length))
|
||||
{
|
||||
var target = _backingMemory.GetSpan(GetPhysicalAddressInternal(va), data.Length);
|
||||
|
||||
bool changed = !data.SequenceEqual(target);
|
||||
|
||||
if (changed)
|
||||
{
|
||||
data.CopyTo(target);
|
||||
}
|
||||
|
||||
return changed;
|
||||
}
|
||||
else
|
||||
{
|
||||
WriteImpl(va, data);
|
||||
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Writes data to CPU mapped memory.
|
||||
/// </summary>
|
||||
/// <param name="va">Virtual address to write the data into</param>
|
||||
/// <param name="data">Data to be written</param>
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
||||
private void WriteImpl(ulong va, ReadOnlySpan<byte> data)
|
||||
public override void Write(ulong va, ReadOnlySpan<byte> data)
|
||||
{
|
||||
try
|
||||
{
|
||||
AssertValidAddressAndSize(va, (ulong)data.Length);
|
||||
|
||||
if (IsContiguousAndMapped(va, data.Length))
|
||||
{
|
||||
data.CopyTo(_backingMemory.GetSpan(GetPhysicalAddressInternal(va), data.Length));
|
||||
}
|
||||
else
|
||||
{
|
||||
int offset = 0, size;
|
||||
|
||||
if ((va & PageMask) != 0)
|
||||
{
|
||||
ulong pa = GetPhysicalAddressInternal(va);
|
||||
|
||||
size = Math.Min(data.Length, PageSize - (int)(va & PageMask));
|
||||
|
||||
data[..size].CopyTo(_backingMemory.GetSpan(pa, size));
|
||||
|
||||
offset += size;
|
||||
}
|
||||
|
||||
for (; offset < data.Length; offset += size)
|
||||
{
|
||||
ulong pa = GetPhysicalAddressInternal(va + (ulong)offset);
|
||||
|
||||
size = Math.Min(data.Length - offset, PageSize);
|
||||
|
||||
data.Slice(offset, size).CopyTo(_backingMemory.GetSpan(pa, size));
|
||||
}
|
||||
}
|
||||
base.Write(va, data);
|
||||
}
|
||||
catch (InvalidMemoryRegionException)
|
||||
{
|
||||
|
|
@ -312,60 +192,47 @@ namespace Ryujinx.Cpu.Jit
|
|||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
public ReadOnlySpan<byte> GetSpan(ulong va, int size, bool tracked = false)
|
||||
public void WriteGuest<T>(ulong va, T value) where T : unmanaged
|
||||
{
|
||||
if (size == 0)
|
||||
{
|
||||
return ReadOnlySpan<byte>.Empty;
|
||||
Span<byte> data = MemoryMarshal.Cast<T, byte>(MemoryMarshal.CreateSpan(ref value, 1));
|
||||
|
||||
SignalMemoryTrackingImpl(va, (ulong)data.Length, true, true);
|
||||
|
||||
Write(va, data);
|
||||
}
|
||||
|
||||
if (tracked)
|
||||
public override void WriteUntracked(ulong va, ReadOnlySpan<byte> data)
|
||||
{
|
||||
SignalMemoryTracking(va, (ulong)size, false);
|
||||
try
|
||||
{
|
||||
base.WriteUntracked(va, data);
|
||||
}
|
||||
|
||||
if (IsContiguousAndMapped(va, size))
|
||||
catch (InvalidMemoryRegionException)
|
||||
{
|
||||
return _backingMemory.GetSpan(GetPhysicalAddressInternal(va), size);
|
||||
if (_invalidAccessHandler == null || !_invalidAccessHandler(va))
|
||||
{
|
||||
throw;
|
||||
}
|
||||
else
|
||||
{
|
||||
Span<byte> data = new byte[size];
|
||||
|
||||
base.Read(va, data);
|
||||
|
||||
return data;
|
||||
}
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
public WritableRegion GetWritableRegion(ulong va, int size, bool tracked = false)
|
||||
public override ReadOnlySequence<byte> GetReadOnlySequence(ulong va, int size, bool tracked = false)
|
||||
{
|
||||
if (size == 0)
|
||||
try
|
||||
{
|
||||
return new WritableRegion(null, va, Memory<byte>.Empty);
|
||||
return base.GetReadOnlySequence(va, size, tracked);
|
||||
}
|
||||
catch (InvalidMemoryRegionException)
|
||||
{
|
||||
if (_invalidAccessHandler == null || !_invalidAccessHandler(va))
|
||||
{
|
||||
throw;
|
||||
}
|
||||
|
||||
if (IsContiguousAndMapped(va, size))
|
||||
{
|
||||
if (tracked)
|
||||
{
|
||||
SignalMemoryTracking(va, (ulong)size, true);
|
||||
}
|
||||
|
||||
return new WritableRegion(null, va, _backingMemory.GetMemory(GetPhysicalAddressInternal(va), size));
|
||||
}
|
||||
else
|
||||
{
|
||||
Memory<byte> memory = new byte[size];
|
||||
|
||||
GetSpan(va, size).CopyTo(memory.Span);
|
||||
|
||||
return new WritableRegion(this, va, memory, tracked);
|
||||
return ReadOnlySequence<byte>.Empty;
|
||||
}
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
public ref T GetRef<T>(ulong va) where T : unmanaged
|
||||
{
|
||||
if (!IsContiguous(va, Unsafe.SizeOf<T>()))
|
||||
|
|
@ -378,56 +245,6 @@ namespace Ryujinx.Cpu.Jit
|
|||
return ref _backingMemory.GetRef<T>(GetPhysicalAddressInternal(va));
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Computes the number of pages in a virtual address range.
|
||||
/// </summary>
|
||||
/// <param name="va">Virtual address of the range</param>
|
||||
/// <param name="size">Size of the range</param>
|
||||
/// <param name="startVa">The virtual address of the beginning of the first page</param>
|
||||
/// <remarks>This function does not differentiate between allocated and unallocated pages.</remarks>
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
||||
private static int GetPagesCount(ulong va, uint size, out ulong startVa)
|
||||
{
|
||||
// WARNING: Always check if ulong does not overflow during the operations.
|
||||
startVa = va & ~(ulong)PageMask;
|
||||
ulong vaSpan = (va - startVa + size + PageMask) & ~(ulong)PageMask;
|
||||
|
||||
return (int)(vaSpan / PageSize);
|
||||
}
|
||||
|
||||
private static void ThrowMemoryNotContiguous() => throw new MemoryNotContiguousException();
|
||||
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
||||
private bool IsContiguousAndMapped(ulong va, int size) => IsContiguous(va, size) && IsMapped(va);
|
||||
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
||||
private bool IsContiguous(ulong va, int size)
|
||||
{
|
||||
if (!ValidateAddress(va) || !ValidateAddressAndSize(va, (ulong)size))
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
int pages = GetPagesCount(va, (uint)size, out va);
|
||||
|
||||
for (int page = 0; page < pages - 1; page++)
|
||||
{
|
||||
if (!ValidateAddress(va + PageSize))
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
if (GetPhysicalAddressInternal(va) + PageSize != GetPhysicalAddressInternal(va + PageSize))
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
va += PageSize;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
public IEnumerable<HostMemoryRange> GetHostRegions(ulong va, ulong size)
|
||||
{
|
||||
|
|
@ -532,9 +349,8 @@ namespace Ryujinx.Cpu.Jit
|
|||
return true;
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
||||
public bool IsMapped(ulong va)
|
||||
public override bool IsMapped(ulong va)
|
||||
{
|
||||
if (!ValidateAddress(va))
|
||||
{
|
||||
|
|
@ -544,9 +360,9 @@ namespace Ryujinx.Cpu.Jit
|
|||
return _pageTable.Read<ulong>((va / PageSize) * PteSize) != 0;
|
||||
}
|
||||
|
||||
private ulong GetPhysicalAddressInternal(ulong va)
|
||||
private nuint GetPhysicalAddressInternal(ulong va)
|
||||
{
|
||||
return PteToPa(_pageTable.Read<ulong>((va / PageSize) * PteSize) & ~(0xffffUL << 48)) + (va & PageMask);
|
||||
return (nuint)(PteToPa(_pageTable.Read<ulong>((va / PageSize) * PteSize) & ~(0xffffUL << 48)) + (va & PageMask));
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
|
|
@ -643,9 +459,7 @@ namespace Ryujinx.Cpu.Jit
|
|||
{
|
||||
ref long pageRef = ref _pageTable.GetRef<long>(pageStart * PteSize);
|
||||
|
||||
long pte;
|
||||
|
||||
pte = Volatile.Read(ref pageRef);
|
||||
long pte = Volatile.Read(ref pageRef);
|
||||
|
||||
if ((pte & tag) != 0)
|
||||
{
|
||||
|
|
@ -663,7 +477,7 @@ namespace Ryujinx.Cpu.Jit
|
|||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
public void SignalMemoryTracking(ulong va, ulong size, bool write, bool precise = false, int? exemptId = null)
|
||||
public override void SignalMemoryTracking(ulong va, ulong size, bool write, bool precise = false, int? exemptId = null)
|
||||
{
|
||||
SignalMemoryTrackingImpl(va, size, write, false, precise, exemptId);
|
||||
}
|
||||
|
|
@ -683,10 +497,16 @@ namespace Ryujinx.Cpu.Jit
|
|||
/// </summary>
|
||||
protected override void Destroy() => _pageTable.Dispose();
|
||||
|
||||
protected override Span<byte> GetPhysicalAddressSpan(ulong pa, int size)
|
||||
protected override Memory<byte> GetPhysicalAddressMemory(nuint pa, int size)
|
||||
=> _backingMemory.GetMemory(pa, size);
|
||||
|
||||
protected override Span<byte> GetPhysicalAddressSpan(nuint pa, int size)
|
||||
=> _backingMemory.GetSpan(pa, size);
|
||||
|
||||
protected override ulong TranslateVirtualAddressForRead(ulong va)
|
||||
protected override nuint TranslateVirtualAddressChecked(ulong va)
|
||||
=> GetPhysicalAddressInternal(va);
|
||||
|
||||
protected override nuint TranslateVirtualAddressUnchecked(ulong va)
|
||||
=> GetPhysicalAddressInternal(va);
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -3,6 +3,7 @@ using Ryujinx.Memory;
|
|||
using Ryujinx.Memory.Range;
|
||||
using Ryujinx.Memory.Tracking;
|
||||
using System;
|
||||
using System.Buffers;
|
||||
using System.Collections.Generic;
|
||||
using System.Linq;
|
||||
using System.Runtime.CompilerServices;
|
||||
|
|
@ -12,7 +13,7 @@ namespace Ryujinx.Cpu.Jit
|
|||
/// <summary>
|
||||
/// Represents a CPU memory manager which maps guest virtual memory directly onto a host virtual region.
|
||||
/// </summary>
|
||||
public sealed class MemoryManagerHostMapped : VirtualMemoryManagerRefCountedBase<ulong, ulong>, IMemoryManager, IVirtualMemoryManagerTracked, IWritableBlock
|
||||
public sealed class MemoryManagerHostMapped : VirtualMemoryManagerRefCountedBase, IMemoryManager, IVirtualMemoryManagerTracked
|
||||
{
|
||||
private readonly InvalidAccessHandler _invalidAccessHandler;
|
||||
private readonly bool _unsafeMode;
|
||||
|
|
@ -96,12 +97,6 @@ namespace Ryujinx.Cpu.Jit
|
|||
Tracking.Map(va, size);
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
public void MapForeign(ulong va, nuint hostPointer, ulong size)
|
||||
{
|
||||
throw new NotSupportedException();
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
public void Unmap(ulong va, ulong size)
|
||||
{
|
||||
|
|
@ -138,8 +133,7 @@ namespace Ryujinx.Cpu.Jit
|
|||
}
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
public T Read<T>(ulong va) where T : unmanaged
|
||||
public override T Read<T>(ulong va)
|
||||
{
|
||||
try
|
||||
{
|
||||
|
|
@ -158,14 +152,11 @@ namespace Ryujinx.Cpu.Jit
|
|||
}
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
public T ReadTracked<T>(ulong va) where T : unmanaged
|
||||
public override T ReadTracked<T>(ulong va)
|
||||
{
|
||||
try
|
||||
{
|
||||
SignalMemoryTracking(va, (ulong)Unsafe.SizeOf<T>(), false);
|
||||
|
||||
return Read<T>(va);
|
||||
return base.ReadTracked<T>(va);
|
||||
}
|
||||
catch (InvalidMemoryRegionException)
|
||||
{
|
||||
|
|
@ -178,7 +169,6 @@ namespace Ryujinx.Cpu.Jit
|
|||
}
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
public override void Read(ulong va, Span<byte> data)
|
||||
{
|
||||
try
|
||||
|
|
@ -196,9 +186,7 @@ namespace Ryujinx.Cpu.Jit
|
|||
}
|
||||
}
|
||||
|
||||
|
||||
/// <inheritdoc/>
|
||||
public void Write<T>(ulong va, T value) where T : unmanaged
|
||||
public override void Write<T>(ulong va, T value)
|
||||
{
|
||||
try
|
||||
{
|
||||
|
|
@ -215,8 +203,7 @@ namespace Ryujinx.Cpu.Jit
|
|||
}
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
public void Write(ulong va, ReadOnlySpan<byte> data)
|
||||
public override void Write(ulong va, ReadOnlySpan<byte> data)
|
||||
{
|
||||
try
|
||||
{
|
||||
|
|
@ -233,8 +220,7 @@ namespace Ryujinx.Cpu.Jit
|
|||
}
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
public void WriteUntracked(ulong va, ReadOnlySpan<byte> data)
|
||||
public override void WriteUntracked(ulong va, ReadOnlySpan<byte> data)
|
||||
{
|
||||
try
|
||||
{
|
||||
|
|
@ -251,8 +237,7 @@ namespace Ryujinx.Cpu.Jit
|
|||
}
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
public bool WriteWithRedundancyCheck(ulong va, ReadOnlySpan<byte> data)
|
||||
public override bool WriteWithRedundancyCheck(ulong va, ReadOnlySpan<byte> data)
|
||||
{
|
||||
try
|
||||
{
|
||||
|
|
@ -279,8 +264,21 @@ namespace Ryujinx.Cpu.Jit
|
|||
}
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
public ReadOnlySpan<byte> GetSpan(ulong va, int size, bool tracked = false)
|
||||
public override ReadOnlySequence<byte> GetReadOnlySequence(ulong va, int size, bool tracked = false)
|
||||
{
|
||||
if (tracked)
|
||||
{
|
||||
SignalMemoryTracking(va, (ulong)size, write: false);
|
||||
}
|
||||
else
|
||||
{
|
||||
AssertMapped(va, (ulong)size);
|
||||
}
|
||||
|
||||
return new ReadOnlySequence<byte>(_addressSpace.Mirror.GetMemory(va, size));
|
||||
}
|
||||
|
||||
public override ReadOnlySpan<byte> GetSpan(ulong va, int size, bool tracked = false)
|
||||
{
|
||||
if (tracked)
|
||||
{
|
||||
|
|
@ -294,8 +292,7 @@ namespace Ryujinx.Cpu.Jit
|
|||
return _addressSpace.Mirror.GetSpan(va, size);
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
public WritableRegion GetWritableRegion(ulong va, int size, bool tracked = false)
|
||||
public override WritableRegion GetWritableRegion(ulong va, int size, bool tracked = false)
|
||||
{
|
||||
if (tracked)
|
||||
{
|
||||
|
|
@ -309,7 +306,6 @@ namespace Ryujinx.Cpu.Jit
|
|||
return _addressSpace.Mirror.GetWritableRegion(va, size);
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
public ref T GetRef<T>(ulong va) where T : unmanaged
|
||||
{
|
||||
SignalMemoryTracking(va, (ulong)Unsafe.SizeOf<T>(), true);
|
||||
|
|
@ -317,9 +313,8 @@ namespace Ryujinx.Cpu.Jit
|
|||
return ref _addressSpace.Mirror.GetRef<T>(va);
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
||||
public bool IsMapped(ulong va)
|
||||
public override bool IsMapped(ulong va)
|
||||
{
|
||||
return ValidateAddress(va) && _pages.IsMapped(va);
|
||||
}
|
||||
|
|
@ -390,11 +385,10 @@ namespace Ryujinx.Cpu.Jit
|
|||
return _pageTable.Read(va) + (va & PageMask);
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
/// <remarks>
|
||||
/// This function also validates that the given range is both valid and mapped, and will throw if it is not.
|
||||
/// </remarks>
|
||||
public void SignalMemoryTracking(ulong va, ulong size, bool write, bool precise = false, int? exemptId = null)
|
||||
public override void SignalMemoryTracking(ulong va, ulong size, bool write, bool precise = false, int? exemptId = null)
|
||||
{
|
||||
AssertValidAddressAndSize(va, size);
|
||||
|
||||
|
|
@ -407,23 +401,6 @@ namespace Ryujinx.Cpu.Jit
|
|||
_pages.SignalMemoryTracking(Tracking, va, size, write, exemptId);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Computes the number of pages in a virtual address range.
|
||||
/// </summary>
|
||||
/// <param name="va">Virtual address of the range</param>
|
||||
/// <param name="size">Size of the range</param>
|
||||
/// <param name="startVa">The virtual address of the beginning of the first page</param>
|
||||
/// <remarks>This function does not differentiate between allocated and unallocated pages.</remarks>
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
||||
private static int GetPagesCount(ulong va, ulong size, out ulong startVa)
|
||||
{
|
||||
// WARNING: Always check if ulong does not overflow during the operations.
|
||||
startVa = va & ~(ulong)PageMask;
|
||||
ulong vaSpan = (va - startVa + size + PageMask) & ~(ulong)PageMask;
|
||||
|
||||
return (int)(vaSpan / PageSize);
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
public void Reprotect(ulong va, ulong size, MemoryPermission protection)
|
||||
{
|
||||
|
|
@ -470,10 +447,16 @@ namespace Ryujinx.Cpu.Jit
|
|||
_memoryEh.Dispose();
|
||||
}
|
||||
|
||||
protected override Span<byte> GetPhysicalAddressSpan(ulong pa, int size)
|
||||
protected override Memory<byte> GetPhysicalAddressMemory(nuint pa, int size)
|
||||
=> _addressSpace.Mirror.GetMemory(pa, size);
|
||||
|
||||
protected override Span<byte> GetPhysicalAddressSpan(nuint pa, int size)
|
||||
=> _addressSpace.Mirror.GetSpan(pa, size);
|
||||
|
||||
protected override ulong TranslateVirtualAddressForRead(ulong va)
|
||||
=> va;
|
||||
protected override nuint TranslateVirtualAddressChecked(ulong va)
|
||||
=> (nuint)GetPhysicalAddressChecked(va);
|
||||
|
||||
protected override nuint TranslateVirtualAddressUnchecked(ulong va)
|
||||
=> (nuint)GetPhysicalAddressInternal(va);
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -8,14 +8,13 @@ using System;
|
|||
using System.Collections.Generic;
|
||||
using System.Linq;
|
||||
using System.Runtime.CompilerServices;
|
||||
using System.Runtime.InteropServices;
|
||||
|
||||
namespace Ryujinx.Cpu.Jit
|
||||
{
|
||||
/// <summary>
|
||||
/// Represents a CPU memory manager which maps guest virtual memory directly onto a host virtual region.
|
||||
/// </summary>
|
||||
public sealed class MemoryManagerHostTracked : VirtualMemoryManagerRefCountedBase<ulong, ulong>, IWritableBlock, IMemoryManager, IVirtualMemoryManagerTracked
|
||||
public sealed class MemoryManagerHostTracked : VirtualMemoryManagerRefCountedBase, IMemoryManager, IVirtualMemoryManagerTracked
|
||||
{
|
||||
private readonly InvalidAccessHandler _invalidAccessHandler;
|
||||
private readonly bool _unsafeMode;
|
||||
|
|
@ -100,12 +99,6 @@ namespace Ryujinx.Cpu.Jit
|
|||
Tracking.Map(va, size);
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
public void MapForeign(ulong va, nuint hostPointer, ulong size)
|
||||
{
|
||||
throw new NotSupportedException();
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
public void Unmap(ulong va, ulong size)
|
||||
{
|
||||
|
|
@ -120,18 +113,11 @@ namespace Ryujinx.Cpu.Jit
|
|||
_nativePageTable.Unmap(va, size);
|
||||
}
|
||||
|
||||
public T Read<T>(ulong va) where T : unmanaged
|
||||
{
|
||||
return MemoryMarshal.Cast<byte, T>(GetSpan(va, Unsafe.SizeOf<T>()))[0];
|
||||
}
|
||||
|
||||
public T ReadTracked<T>(ulong va) where T : unmanaged
|
||||
public override T ReadTracked<T>(ulong va)
|
||||
{
|
||||
try
|
||||
{
|
||||
SignalMemoryTracking(va, (ulong)Unsafe.SizeOf<T>(), false);
|
||||
|
||||
return Read<T>(va);
|
||||
return base.ReadTracked<T>(va);
|
||||
}
|
||||
catch (InvalidMemoryRegionException)
|
||||
{
|
||||
|
|
@ -145,38 +131,39 @@ namespace Ryujinx.Cpu.Jit
|
|||
}
|
||||
|
||||
public override void Read(ulong va, Span<byte> data)
|
||||
{
|
||||
ReadImpl(va, data);
|
||||
}
|
||||
|
||||
public void Write<T>(ulong va, T value) where T : unmanaged
|
||||
{
|
||||
Write(va, MemoryMarshal.Cast<T, byte>(MemoryMarshal.CreateSpan(ref value, 1)));
|
||||
}
|
||||
|
||||
public void Write(ulong va, ReadOnlySpan<byte> data)
|
||||
{
|
||||
if (data.Length == 0)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
SignalMemoryTracking(va, (ulong)data.Length, true);
|
||||
|
||||
WriteImpl(va, data);
|
||||
}
|
||||
|
||||
public void WriteUntracked(ulong va, ReadOnlySpan<byte> data)
|
||||
try
|
||||
{
|
||||
if (data.Length == 0)
|
||||
AssertValidAddressAndSize(va, (ulong)data.Length);
|
||||
|
||||
ulong endVa = va + (ulong)data.Length;
|
||||
int offset = 0;
|
||||
|
||||
while (va < endVa)
|
||||
{
|
||||
return;
|
||||
(MemoryBlock memory, ulong rangeOffset, ulong copySize) = GetMemoryOffsetAndSize(va, (ulong)(data.Length - offset));
|
||||
|
||||
memory.GetSpan(rangeOffset, (int)copySize).CopyTo(data.Slice(offset, (int)copySize));
|
||||
|
||||
va += copySize;
|
||||
offset += (int)copySize;
|
||||
}
|
||||
}
|
||||
catch (InvalidMemoryRegionException)
|
||||
{
|
||||
if (_invalidAccessHandler == null || !_invalidAccessHandler(va))
|
||||
{
|
||||
throw;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
WriteImpl(va, data);
|
||||
}
|
||||
|
||||
public bool WriteWithRedundancyCheck(ulong va, ReadOnlySpan<byte> data)
|
||||
public override bool WriteWithRedundancyCheck(ulong va, ReadOnlySpan<byte> data)
|
||||
{
|
||||
if (data.Length == 0)
|
||||
{
|
||||
|
|
@ -206,35 +193,7 @@ namespace Ryujinx.Cpu.Jit
|
|||
}
|
||||
}
|
||||
|
||||
private void WriteImpl(ulong va, ReadOnlySpan<byte> data)
|
||||
{
|
||||
try
|
||||
{
|
||||
AssertValidAddressAndSize(va, (ulong)data.Length);
|
||||
|
||||
ulong endVa = va + (ulong)data.Length;
|
||||
int offset = 0;
|
||||
|
||||
while (va < endVa)
|
||||
{
|
||||
(MemoryBlock memory, ulong rangeOffset, ulong copySize) = GetMemoryOffsetAndSize(va, (ulong)(data.Length - offset));
|
||||
|
||||
data.Slice(offset, (int)copySize).CopyTo(memory.GetSpan(rangeOffset, (int)copySize));
|
||||
|
||||
va += copySize;
|
||||
offset += (int)copySize;
|
||||
}
|
||||
}
|
||||
catch (InvalidMemoryRegionException)
|
||||
{
|
||||
if (_invalidAccessHandler == null || !_invalidAccessHandler(va))
|
||||
{
|
||||
throw;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
public ReadOnlySpan<byte> GetSpan(ulong va, int size, bool tracked = false)
|
||||
public override ReadOnlySpan<byte> GetSpan(ulong va, int size, bool tracked = false)
|
||||
{
|
||||
if (size == 0)
|
||||
{
|
||||
|
|
@ -254,13 +213,13 @@ namespace Ryujinx.Cpu.Jit
|
|||
{
|
||||
Span<byte> data = new byte[size];
|
||||
|
||||
ReadImpl(va, data);
|
||||
Read(va, data);
|
||||
|
||||
return data;
|
||||
}
|
||||
}
|
||||
|
||||
public WritableRegion GetWritableRegion(ulong va, int size, bool tracked = false)
|
||||
public override WritableRegion GetWritableRegion(ulong va, int size, bool tracked = false)
|
||||
{
|
||||
if (size == 0)
|
||||
{
|
||||
|
|
@ -280,7 +239,7 @@ namespace Ryujinx.Cpu.Jit
|
|||
{
|
||||
Memory<byte> memory = new byte[size];
|
||||
|
||||
ReadImpl(va, memory.Span);
|
||||
Read(va, memory.Span);
|
||||
|
||||
return new WritableRegion(this, va, memory);
|
||||
}
|
||||
|
|
@ -299,7 +258,7 @@ namespace Ryujinx.Cpu.Jit
|
|||
}
|
||||
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
||||
public bool IsMapped(ulong va)
|
||||
public override bool IsMapped(ulong va)
|
||||
{
|
||||
return ValidateAddress(va) && _pages.IsMapped(va);
|
||||
}
|
||||
|
|
@ -311,8 +270,6 @@ namespace Ryujinx.Cpu.Jit
|
|||
return _pages.IsRangeMapped(va, size);
|
||||
}
|
||||
|
||||
private static void ThrowMemoryNotContiguous() => throw new MemoryNotContiguousException();
|
||||
|
||||
private bool TryGetVirtualContiguous(ulong va, int size, out MemoryBlock memory, out ulong offset)
|
||||
{
|
||||
if (_addressSpace.HasAnyPrivateAllocation(va, (ulong)size, out PrivateRange range))
|
||||
|
|
@ -491,44 +448,11 @@ namespace Ryujinx.Cpu.Jit
|
|||
return regions;
|
||||
}
|
||||
|
||||
private void ReadImpl(ulong va, Span<byte> data)
|
||||
{
|
||||
if (data.Length == 0)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
try
|
||||
{
|
||||
AssertValidAddressAndSize(va, (ulong)data.Length);
|
||||
|
||||
ulong endVa = va + (ulong)data.Length;
|
||||
int offset = 0;
|
||||
|
||||
while (va < endVa)
|
||||
{
|
||||
(MemoryBlock memory, ulong rangeOffset, ulong copySize) = GetMemoryOffsetAndSize(va, (ulong)(data.Length - offset));
|
||||
|
||||
memory.GetSpan(rangeOffset, (int)copySize).CopyTo(data.Slice(offset, (int)copySize));
|
||||
|
||||
va += copySize;
|
||||
offset += (int)copySize;
|
||||
}
|
||||
}
|
||||
catch (InvalidMemoryRegionException)
|
||||
{
|
||||
if (_invalidAccessHandler == null || !_invalidAccessHandler(va))
|
||||
{
|
||||
throw;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
/// <remarks>
|
||||
/// This function also validates that the given range is both valid and mapped, and will throw if it is not.
|
||||
/// </remarks>
|
||||
public void SignalMemoryTracking(ulong va, ulong size, bool write, bool precise = false, int? exemptId = null)
|
||||
public override void SignalMemoryTracking(ulong va, ulong size, bool write, bool precise = false, int? exemptId = null)
|
||||
{
|
||||
AssertValidAddressAndSize(va, size);
|
||||
|
||||
|
|
@ -543,23 +467,6 @@ namespace Ryujinx.Cpu.Jit
|
|||
_pages.SignalMemoryTracking(Tracking, va, size, write, exemptId);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Computes the number of pages in a virtual address range.
|
||||
/// </summary>
|
||||
/// <param name="va">Virtual address of the range</param>
|
||||
/// <param name="size">Size of the range</param>
|
||||
/// <param name="startVa">The virtual address of the beginning of the first page</param>
|
||||
/// <remarks>This function does not differentiate between allocated and unallocated pages.</remarks>
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
||||
private int GetPagesCount(ulong va, ulong size, out ulong startVa)
|
||||
{
|
||||
// WARNING: Always check if ulong does not overflow during the operations.
|
||||
startVa = va & ~(ulong)PageMask;
|
||||
ulong vaSpan = (va - startVa + size + PageMask) & ~(ulong)PageMask;
|
||||
|
||||
return (int)(vaSpan / PageSize);
|
||||
}
|
||||
|
||||
public RegionHandle BeginTracking(ulong address, ulong size, int id, RegionFlags flags = RegionFlags.None)
|
||||
{
|
||||
return Tracking.BeginTracking(address, size, id, flags);
|
||||
|
|
@ -618,10 +525,44 @@ namespace Ryujinx.Cpu.Jit
|
|||
_nativePageTable.Dispose();
|
||||
}
|
||||
|
||||
protected override Span<byte> GetPhysicalAddressSpan(ulong pa, int size)
|
||||
protected override Memory<byte> GetPhysicalAddressMemory(nuint pa, int size)
|
||||
=> _backingMemory.GetMemory(pa, size);
|
||||
|
||||
protected override Span<byte> GetPhysicalAddressSpan(nuint pa, int size)
|
||||
=> _backingMemory.GetSpan(pa, size);
|
||||
|
||||
protected override ulong TranslateVirtualAddressForRead(ulong va)
|
||||
=> GetPhysicalAddressInternal(va);
|
||||
protected override void WriteImpl(ulong va, ReadOnlySpan<byte> data)
|
||||
{
|
||||
try
|
||||
{
|
||||
AssertValidAddressAndSize(va, (ulong)data.Length);
|
||||
|
||||
ulong endVa = va + (ulong)data.Length;
|
||||
int offset = 0;
|
||||
|
||||
while (va < endVa)
|
||||
{
|
||||
(MemoryBlock memory, ulong rangeOffset, ulong copySize) = GetMemoryOffsetAndSize(va, (ulong)(data.Length - offset));
|
||||
|
||||
data.Slice(offset, (int)copySize).CopyTo(memory.GetSpan(rangeOffset, (int)copySize));
|
||||
|
||||
va += copySize;
|
||||
offset += (int)copySize;
|
||||
}
|
||||
}
|
||||
catch (InvalidMemoryRegionException)
|
||||
{
|
||||
if (_invalidAccessHandler == null || !_invalidAccessHandler(va))
|
||||
{
|
||||
throw;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
protected override nuint TranslateVirtualAddressChecked(ulong va)
|
||||
=> (nuint)GetPhysicalAddressChecked(va);
|
||||
|
||||
protected override nuint TranslateVirtualAddressUnchecked(ulong va)
|
||||
=> (nuint)GetPhysicalAddressInternal(va);
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,13 +1,10 @@
|
|||
using Ryujinx.Memory;
|
||||
using System.Diagnostics;
|
||||
using System.Numerics;
|
||||
using System.Threading;
|
||||
|
||||
namespace Ryujinx.Cpu
|
||||
{
|
||||
public abstract class VirtualMemoryManagerRefCountedBase<TVirtual, TPhysical> : VirtualMemoryManagerBase<TVirtual, TPhysical>, IRefCounted
|
||||
where TVirtual : IBinaryInteger<TVirtual>
|
||||
where TPhysical : IBinaryInteger<TPhysical>
|
||||
public abstract class VirtualMemoryManagerRefCountedBase : VirtualMemoryManagerBase, IRefCounted
|
||||
{
|
||||
private int _referenceCount;
|
||||
|
||||
|
|
|
|||
|
|
@ -3,7 +3,6 @@ using System;
|
|||
using System.Collections.Generic;
|
||||
using System.Linq;
|
||||
using System.Runtime.CompilerServices;
|
||||
using System.Runtime.InteropServices;
|
||||
|
||||
namespace Ryujinx.Memory
|
||||
{
|
||||
|
|
@ -11,7 +10,7 @@ namespace Ryujinx.Memory
|
|||
/// Represents a address space manager.
|
||||
/// Supports virtual memory region mapping, address translation and read/write access to mapped regions.
|
||||
/// </summary>
|
||||
public sealed class AddressSpaceManager : VirtualMemoryManagerBase<ulong, nuint>, IVirtualMemoryManager, IWritableBlock
|
||||
public sealed class AddressSpaceManager : VirtualMemoryManagerBase, IVirtualMemoryManager
|
||||
{
|
||||
/// <inheritdoc/>
|
||||
public bool Supports4KBPages => true;
|
||||
|
|
@ -63,8 +62,7 @@ namespace Ryujinx.Memory
|
|||
}
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
public void MapForeign(ulong va, nuint hostPointer, ulong size)
|
||||
public override void MapForeign(ulong va, nuint hostPointer, ulong size)
|
||||
{
|
||||
AssertValidAddressAndSize(va, size);
|
||||
|
||||
|
|
@ -92,106 +90,6 @@ namespace Ryujinx.Memory
|
|||
}
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
public T Read<T>(ulong va) where T : unmanaged
|
||||
{
|
||||
return MemoryMarshal.Cast<byte, T>(GetSpan(va, Unsafe.SizeOf<T>()))[0];
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
public void Write<T>(ulong va, T value) where T : unmanaged
|
||||
{
|
||||
Write(va, MemoryMarshal.Cast<T, byte>(MemoryMarshal.CreateSpan(ref value, 1)));
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
public void Write(ulong va, ReadOnlySpan<byte> data)
|
||||
{
|
||||
if (data.Length == 0)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
AssertValidAddressAndSize(va, (ulong)data.Length);
|
||||
|
||||
if (IsContiguousAndMapped(va, data.Length))
|
||||
{
|
||||
data.CopyTo(GetHostSpanContiguous(va, data.Length));
|
||||
}
|
||||
else
|
||||
{
|
||||
int offset = 0, size;
|
||||
|
||||
if ((va & PageMask) != 0)
|
||||
{
|
||||
size = Math.Min(data.Length, PageSize - (int)(va & PageMask));
|
||||
|
||||
data[..size].CopyTo(GetHostSpanContiguous(va, size));
|
||||
|
||||
offset += size;
|
||||
}
|
||||
|
||||
for (; offset < data.Length; offset += size)
|
||||
{
|
||||
size = Math.Min(data.Length - offset, PageSize);
|
||||
|
||||
data.Slice(offset, size).CopyTo(GetHostSpanContiguous(va + (ulong)offset, size));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
public bool WriteWithRedundancyCheck(ulong va, ReadOnlySpan<byte> data)
|
||||
{
|
||||
Write(va, data);
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
public ReadOnlySpan<byte> GetSpan(ulong va, int size, bool tracked = false)
|
||||
{
|
||||
if (size == 0)
|
||||
{
|
||||
return ReadOnlySpan<byte>.Empty;
|
||||
}
|
||||
|
||||
if (IsContiguousAndMapped(va, size))
|
||||
{
|
||||
return GetHostSpanContiguous(va, size);
|
||||
}
|
||||
else
|
||||
{
|
||||
Span<byte> data = new byte[size];
|
||||
|
||||
Read(va, data);
|
||||
|
||||
return data;
|
||||
}
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
public unsafe WritableRegion GetWritableRegion(ulong va, int size, bool tracked = false)
|
||||
{
|
||||
if (size == 0)
|
||||
{
|
||||
return new WritableRegion(null, va, Memory<byte>.Empty);
|
||||
}
|
||||
|
||||
if (IsContiguousAndMapped(va, size))
|
||||
{
|
||||
return new WritableRegion(null, va, new NativeMemoryManager<byte>((byte*)GetHostAddress(va), size).Memory);
|
||||
}
|
||||
else
|
||||
{
|
||||
Memory<byte> memory = new byte[size];
|
||||
|
||||
GetSpan(va, size).CopyTo(memory.Span);
|
||||
|
||||
return new WritableRegion(this, va, memory);
|
||||
}
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
public unsafe ref T GetRef<T>(ulong va) where T : unmanaged
|
||||
{
|
||||
|
|
@ -203,50 +101,6 @@ namespace Ryujinx.Memory
|
|||
return ref *(T*)GetHostAddress(va);
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
||||
private static int GetPagesCount(ulong va, uint size, out ulong startVa)
|
||||
{
|
||||
// WARNING: Always check if ulong does not overflow during the operations.
|
||||
startVa = va & ~(ulong)PageMask;
|
||||
ulong vaSpan = (va - startVa + size + PageMask) & ~(ulong)PageMask;
|
||||
|
||||
return (int)(vaSpan / PageSize);
|
||||
}
|
||||
|
||||
private static void ThrowMemoryNotContiguous() => throw new MemoryNotContiguousException();
|
||||
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
||||
private bool IsContiguousAndMapped(ulong va, int size) => IsContiguous(va, size) && IsMapped(va);
|
||||
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
||||
private bool IsContiguous(ulong va, int size)
|
||||
{
|
||||
if (!ValidateAddress(va) || !ValidateAddressAndSize(va, (ulong)size))
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
int pages = GetPagesCount(va, (uint)size, out va);
|
||||
|
||||
for (int page = 0; page < pages - 1; page++)
|
||||
{
|
||||
if (!ValidateAddress(va + PageSize))
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
if (GetHostAddress(va) + PageSize != GetHostAddress(va + PageSize))
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
va += PageSize;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
public IEnumerable<HostMemoryRange> GetHostRegions(ulong va, ulong size)
|
||||
{
|
||||
|
|
@ -304,7 +158,7 @@ namespace Ryujinx.Memory
|
|||
return null;
|
||||
}
|
||||
|
||||
int pages = GetPagesCount(va, (uint)size, out va);
|
||||
int pages = GetPagesCount(va, size, out va);
|
||||
|
||||
var regions = new List<HostMemoryRange>();
|
||||
|
||||
|
|
@ -336,9 +190,8 @@ namespace Ryujinx.Memory
|
|||
return regions;
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
||||
public bool IsMapped(ulong va)
|
||||
public override bool IsMapped(ulong va)
|
||||
{
|
||||
if (!ValidateAddress(va))
|
||||
{
|
||||
|
|
@ -351,7 +204,7 @@ namespace Ryujinx.Memory
|
|||
/// <inheritdoc/>
|
||||
public bool IsRangeMapped(ulong va, ulong size)
|
||||
{
|
||||
if (size == 0UL)
|
||||
if (size == 0)
|
||||
{
|
||||
return true;
|
||||
}
|
||||
|
|
@ -376,11 +229,6 @@ namespace Ryujinx.Memory
|
|||
return true;
|
||||
}
|
||||
|
||||
private unsafe Span<byte> GetHostSpanContiguous(ulong va, int size)
|
||||
{
|
||||
return new Span<byte>((void*)GetHostAddress(va), size);
|
||||
}
|
||||
|
||||
private nuint GetHostAddress(ulong va)
|
||||
{
|
||||
return _pageTable.Read(va) + (nuint)(va & PageMask);
|
||||
|
|
@ -397,16 +245,16 @@ namespace Ryujinx.Memory
|
|||
throw new NotImplementedException();
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
public void SignalMemoryTracking(ulong va, ulong size, bool write, bool precise = false, int? exemptId = null)
|
||||
{
|
||||
// Only the ARM Memory Manager has tracking for now.
|
||||
}
|
||||
protected unsafe override Memory<byte> GetPhysicalAddressMemory(nuint pa, int size)
|
||||
=> new NativeMemoryManager<byte>((byte*)pa, size).Memory;
|
||||
|
||||
protected override unsafe Span<byte> GetPhysicalAddressSpan(nuint pa, int size)
|
||||
=> new((void*)pa, size);
|
||||
=> new Span<byte>((void*)pa, size);
|
||||
|
||||
protected override nuint TranslateVirtualAddressForRead(ulong va)
|
||||
protected override nuint TranslateVirtualAddressChecked(ulong va)
|
||||
=> GetHostAddress(va);
|
||||
|
||||
protected override nuint TranslateVirtualAddressUnchecked(ulong va)
|
||||
=> GetHostAddress(va);
|
||||
}
|
||||
}
|
||||
|
|
|
|||
60
src/Ryujinx.Memory/BytesReadOnlySequenceSegment.cs
Normal file
60
src/Ryujinx.Memory/BytesReadOnlySequenceSegment.cs
Normal file
|
|
@ -0,0 +1,60 @@
|
|||
using System;
|
||||
using System.Buffers;
|
||||
using System.Runtime.InteropServices;
|
||||
|
||||
namespace Ryujinx.Memory
|
||||
{
|
||||
/// <summary>
|
||||
/// A concrete implementation of <seealso cref="ReadOnlySequence{Byte}"/>,
|
||||
/// with methods to help build a full sequence.
|
||||
/// </summary>
|
||||
public sealed class BytesReadOnlySequenceSegment : ReadOnlySequenceSegment<byte>
|
||||
{
|
||||
public BytesReadOnlySequenceSegment(Memory<byte> memory) => Memory = memory;
|
||||
|
||||
public BytesReadOnlySequenceSegment Append(Memory<byte> memory)
|
||||
{
|
||||
var nextSegment = new BytesReadOnlySequenceSegment(memory)
|
||||
{
|
||||
RunningIndex = RunningIndex + Memory.Length
|
||||
};
|
||||
|
||||
Next = nextSegment;
|
||||
|
||||
return nextSegment;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Attempts to determine if the current <seealso cref="Memory{Byte}"/> and <paramref name="other"/> are contiguous.
|
||||
/// Only works if both were created by a <seealso cref="NativeMemoryManager{Byte}"/>.
|
||||
/// </summary>
|
||||
/// <param name="other">The segment to check if continuous with the current one</param>
|
||||
/// <param name="contiguousStart">The starting address of the contiguous segment</param>
|
||||
/// <param name="contiguousSize">The size of the contiguous segment</param>
|
||||
/// <returns>True if the segments are contiguous, otherwise false</returns>
|
||||
public unsafe bool IsContiguousWith(Memory<byte> other, out nuint contiguousStart, out int contiguousSize)
|
||||
{
|
||||
if (MemoryMarshal.TryGetMemoryManager<byte, NativeMemoryManager<byte>>(Memory, out var thisMemoryManager) &&
|
||||
MemoryMarshal.TryGetMemoryManager<byte, NativeMemoryManager<byte>>(other, out var otherMemoryManager) &&
|
||||
thisMemoryManager.Pointer + thisMemoryManager.Length == otherMemoryManager.Pointer)
|
||||
{
|
||||
contiguousStart = (nuint)thisMemoryManager.Pointer;
|
||||
contiguousSize = thisMemoryManager.Length + otherMemoryManager.Length;
|
||||
return true;
|
||||
}
|
||||
else
|
||||
{
|
||||
contiguousStart = 0;
|
||||
contiguousSize = 0;
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Replaces the current <seealso cref="Memory{Byte}"/> value with the one provided.
|
||||
/// </summary>
|
||||
/// <param name="memory">The new segment to hold in this <seealso cref="BytesReadOnlySequenceSegment"/></param>
|
||||
public void Replace(Memory<byte> memory)
|
||||
=> Memory = memory;
|
||||
}
|
||||
}
|
||||
|
|
@ -124,6 +124,16 @@ namespace Ryujinx.Memory
|
|||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets a read-only sequence of read-only memory blocks from CPU mapped memory.
|
||||
/// </summary>
|
||||
/// <param name="va">Virtual address of the data</param>
|
||||
/// <param name="size">Size of the data</param>
|
||||
/// <param name="tracked">True if read tracking is triggered on the memory</param>
|
||||
/// <returns>A read-only sequence of read-only memory of the data</returns>
|
||||
/// <exception cref="InvalidMemoryRegionException">Throw for unhandled invalid or unmapped memory accesses</exception>
|
||||
ReadOnlySequence<byte> GetReadOnlySequence(ulong va, int size, bool tracked = false);
|
||||
|
||||
/// <summary>
|
||||
/// Gets a read-only span of data from CPU mapped memory.
|
||||
/// </summary>
|
||||
|
|
|
|||
|
|
@ -14,6 +14,10 @@ namespace Ryujinx.Memory
|
|||
_length = length;
|
||||
}
|
||||
|
||||
public unsafe T* Pointer => _pointer;
|
||||
|
||||
public int Length => _length;
|
||||
|
||||
public override Span<T> GetSpan()
|
||||
{
|
||||
return new Span<T>((void*)_pointer, _length);
|
||||
|
|
|
|||
|
|
@ -1,34 +1,171 @@
|
|||
using Ryujinx.Common.Memory;
|
||||
using System;
|
||||
using System.Numerics;
|
||||
using System.Buffers;
|
||||
using System.Runtime.CompilerServices;
|
||||
using System.Runtime.InteropServices;
|
||||
|
||||
namespace Ryujinx.Memory
|
||||
{
|
||||
public abstract class VirtualMemoryManagerBase<TVirtual, TPhysical>
|
||||
where TVirtual : IBinaryInteger<TVirtual>
|
||||
where TPhysical : IBinaryInteger<TPhysical>
|
||||
public abstract class VirtualMemoryManagerBase : IWritableBlock
|
||||
{
|
||||
public const int PageBits = 12;
|
||||
public const int PageSize = 1 << PageBits;
|
||||
public const int PageMask = PageSize - 1;
|
||||
|
||||
protected abstract TVirtual AddressSpaceSize { get; }
|
||||
protected abstract ulong AddressSpaceSize { get; }
|
||||
|
||||
public virtual void Read(TVirtual va, Span<byte> data)
|
||||
public virtual ReadOnlySequence<byte> GetReadOnlySequence(ulong va, int size, bool tracked = false)
|
||||
{
|
||||
if (size == 0)
|
||||
{
|
||||
return ReadOnlySequence<byte>.Empty;
|
||||
}
|
||||
|
||||
if (tracked)
|
||||
{
|
||||
SignalMemoryTracking(va, (ulong)size, false);
|
||||
}
|
||||
|
||||
if (IsContiguousAndMapped(va, size))
|
||||
{
|
||||
nuint pa = TranslateVirtualAddressUnchecked(va);
|
||||
|
||||
return new ReadOnlySequence<byte>(GetPhysicalAddressMemory(pa, size));
|
||||
}
|
||||
else
|
||||
{
|
||||
AssertValidAddressAndSize(va, size);
|
||||
|
||||
int offset = 0, segmentSize;
|
||||
|
||||
BytesReadOnlySequenceSegment first = null, last = null;
|
||||
|
||||
if ((va & PageMask) != 0)
|
||||
{
|
||||
nuint pa = TranslateVirtualAddressChecked(va);
|
||||
|
||||
segmentSize = Math.Min(size, PageSize - (int)(va & PageMask));
|
||||
|
||||
Memory<byte> memory = GetPhysicalAddressMemory(pa, segmentSize);
|
||||
|
||||
first = last = new BytesReadOnlySequenceSegment(memory);
|
||||
|
||||
offset += segmentSize;
|
||||
}
|
||||
|
||||
for (; offset < size; offset += segmentSize)
|
||||
{
|
||||
nuint pa = TranslateVirtualAddressChecked(va + (ulong)offset);
|
||||
|
||||
segmentSize = Math.Min(size - offset, PageSize);
|
||||
|
||||
Memory<byte> memory = GetPhysicalAddressMemory(pa, segmentSize);
|
||||
|
||||
if (first is null)
|
||||
{
|
||||
first = last = new BytesReadOnlySequenceSegment(memory);
|
||||
}
|
||||
else
|
||||
{
|
||||
if (last.IsContiguousWith(memory, out nuint contiguousStart, out int contiguousSize))
|
||||
{
|
||||
last.Replace(GetPhysicalAddressMemory(contiguousStart, contiguousSize));
|
||||
}
|
||||
else
|
||||
{
|
||||
last = last.Append(memory);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return new ReadOnlySequence<byte>(first, 0, last, (int)(size - last.RunningIndex));
|
||||
}
|
||||
}
|
||||
|
||||
public virtual ReadOnlySpan<byte> GetSpan(ulong va, int size, bool tracked = false)
|
||||
{
|
||||
if (size == 0)
|
||||
{
|
||||
return ReadOnlySpan<byte>.Empty;
|
||||
}
|
||||
|
||||
if (tracked)
|
||||
{
|
||||
SignalMemoryTracking(va, (ulong)size, false);
|
||||
}
|
||||
|
||||
if (IsContiguousAndMapped(va, size))
|
||||
{
|
||||
nuint pa = TranslateVirtualAddressUnchecked(va);
|
||||
|
||||
return GetPhysicalAddressSpan(pa, size);
|
||||
}
|
||||
else
|
||||
{
|
||||
Span<byte> data = new byte[size];
|
||||
|
||||
Read(va, data);
|
||||
|
||||
return data;
|
||||
}
|
||||
}
|
||||
|
||||
public virtual WritableRegion GetWritableRegion(ulong va, int size, bool tracked = false)
|
||||
{
|
||||
if (size == 0)
|
||||
{
|
||||
return new WritableRegion(null, va, Memory<byte>.Empty);
|
||||
}
|
||||
|
||||
if (tracked)
|
||||
{
|
||||
SignalMemoryTracking(va, (ulong)size, true);
|
||||
}
|
||||
|
||||
if (IsContiguousAndMapped(va, size))
|
||||
{
|
||||
nuint pa = TranslateVirtualAddressUnchecked(va);
|
||||
|
||||
return new WritableRegion(null, va, GetPhysicalAddressMemory(pa, size));
|
||||
}
|
||||
else
|
||||
{
|
||||
IMemoryOwner<byte> memoryOwner = ByteMemoryPool.Rent(size);
|
||||
|
||||
Read(va, memoryOwner.Memory.Span);
|
||||
|
||||
return new WritableRegion(this, va, memoryOwner);
|
||||
}
|
||||
}
|
||||
|
||||
public abstract bool IsMapped(ulong va);
|
||||
|
||||
public virtual void MapForeign(ulong va, nuint hostPointer, ulong size)
|
||||
{
|
||||
throw new NotSupportedException();
|
||||
}
|
||||
|
||||
public virtual T Read<T>(ulong va) where T : unmanaged
|
||||
{
|
||||
return MemoryMarshal.Cast<byte, T>(GetSpan(va, Unsafe.SizeOf<T>()))[0];
|
||||
}
|
||||
|
||||
public virtual void Read(ulong va, Span<byte> data)
|
||||
{
|
||||
if (data.Length == 0)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
AssertValidAddressAndSize(va, TVirtual.CreateChecked(data.Length));
|
||||
AssertValidAddressAndSize(va, data.Length);
|
||||
|
||||
int offset = 0, size;
|
||||
|
||||
if ((int.CreateTruncating(va) & PageMask) != 0)
|
||||
if ((va & PageMask) != 0)
|
||||
{
|
||||
TPhysical pa = TranslateVirtualAddressForRead(va);
|
||||
nuint pa = TranslateVirtualAddressChecked(va);
|
||||
|
||||
size = Math.Min(data.Length, PageSize - ((int.CreateTruncating(va) & PageMask)));
|
||||
size = Math.Min(data.Length, PageSize - (int)(va & PageMask));
|
||||
|
||||
GetPhysicalAddressSpan(pa, size).CopyTo(data[..size]);
|
||||
|
||||
|
|
@ -37,7 +174,7 @@ namespace Ryujinx.Memory
|
|||
|
||||
for (; offset < data.Length; offset += size)
|
||||
{
|
||||
TPhysical pa = TranslateVirtualAddressForRead(va + TVirtual.CreateChecked(offset));
|
||||
nuint pa = TranslateVirtualAddressChecked(va + (ulong)offset);
|
||||
|
||||
size = Math.Min(data.Length - offset, PageSize);
|
||||
|
||||
|
|
@ -45,13 +182,84 @@ namespace Ryujinx.Memory
|
|||
}
|
||||
}
|
||||
|
||||
public virtual T ReadTracked<T>(ulong va) where T : unmanaged
|
||||
{
|
||||
SignalMemoryTracking(va, (ulong)Unsafe.SizeOf<T>(), false);
|
||||
|
||||
return Read<T>(va);
|
||||
}
|
||||
|
||||
public virtual void SignalMemoryTracking(ulong va, ulong size, bool write, bool precise = false, int? exemptId = null)
|
||||
{
|
||||
// No default implementation
|
||||
}
|
||||
|
||||
public virtual void Write(ulong va, ReadOnlySpan<byte> data)
|
||||
{
|
||||
if (data.Length == 0)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
SignalMemoryTracking(va, (ulong)data.Length, true);
|
||||
|
||||
WriteImpl(va, data);
|
||||
}
|
||||
|
||||
public virtual void Write<T>(ulong va, T value) where T : unmanaged
|
||||
{
|
||||
Write(va, MemoryMarshal.Cast<T, byte>(MemoryMarshal.CreateSpan(ref value, 1)));
|
||||
}
|
||||
|
||||
public virtual void WriteUntracked(ulong va, ReadOnlySpan<byte> data)
|
||||
{
|
||||
if (data.Length == 0)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
WriteImpl(va, data);
|
||||
}
|
||||
|
||||
public virtual bool WriteWithRedundancyCheck(ulong va, ReadOnlySpan<byte> data)
|
||||
{
|
||||
if (data.Length == 0)
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
if (IsContiguousAndMapped(va, data.Length))
|
||||
{
|
||||
SignalMemoryTracking(va, (ulong)data.Length, false);
|
||||
|
||||
nuint pa = TranslateVirtualAddressChecked(va);
|
||||
|
||||
var target = GetPhysicalAddressSpan(pa, data.Length);
|
||||
|
||||
bool changed = !data.SequenceEqual(target);
|
||||
|
||||
if (changed)
|
||||
{
|
||||
data.CopyTo(target);
|
||||
}
|
||||
|
||||
return changed;
|
||||
}
|
||||
else
|
||||
{
|
||||
Write(va, data);
|
||||
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Ensures the combination of virtual address and size is part of the addressable space.
|
||||
/// </summary>
|
||||
/// <param name="va">Virtual address of the range</param>
|
||||
/// <param name="size">Size of the range in bytes</param>
|
||||
/// <exception cref="InvalidMemoryRegionException">Throw when the memory region specified outside the addressable space</exception>
|
||||
protected void AssertValidAddressAndSize(TVirtual va, TVirtual size)
|
||||
protected void AssertValidAddressAndSize(ulong va, ulong size)
|
||||
{
|
||||
if (!ValidateAddressAndSize(va, size))
|
||||
{
|
||||
|
|
@ -59,16 +267,82 @@ namespace Ryujinx.Memory
|
|||
}
|
||||
}
|
||||
|
||||
protected abstract Span<byte> GetPhysicalAddressSpan(TPhysical pa, int size);
|
||||
/// <summary>
|
||||
/// Ensures the combination of virtual address and size is part of the addressable space.
|
||||
/// </summary>
|
||||
/// <param name="va">Virtual address of the range</param>
|
||||
/// <param name="size">Size of the range in bytes</param>
|
||||
/// <exception cref="InvalidMemoryRegionException">Throw when the memory region specified outside the addressable space</exception>
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
||||
protected void AssertValidAddressAndSize(ulong va, int size)
|
||||
=> AssertValidAddressAndSize(va, (ulong)size);
|
||||
|
||||
protected abstract TPhysical TranslateVirtualAddressForRead(TVirtual va);
|
||||
/// <summary>
|
||||
/// Computes the number of pages in a virtual address range.
|
||||
/// </summary>
|
||||
/// <param name="va">Virtual address of the range</param>
|
||||
/// <param name="size">Size of the range</param>
|
||||
/// <param name="startVa">The virtual address of the beginning of the first page</param>
|
||||
/// <remarks>This function does not differentiate between allocated and unallocated pages.</remarks>
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
||||
protected static int GetPagesCount(ulong va, ulong size, out ulong startVa)
|
||||
{
|
||||
// WARNING: Always check if ulong does not overflow during the operations.
|
||||
startVa = va & ~(ulong)PageMask;
|
||||
ulong vaSpan = (va - startVa + size + PageMask) & ~(ulong)PageMask;
|
||||
|
||||
return (int)(vaSpan / PageSize);
|
||||
}
|
||||
|
||||
protected abstract Memory<byte> GetPhysicalAddressMemory(nuint pa, int size);
|
||||
|
||||
protected abstract Span<byte> GetPhysicalAddressSpan(nuint pa, int size);
|
||||
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
||||
protected bool IsContiguous(ulong va, int size) => IsContiguous(va, (ulong)size);
|
||||
|
||||
protected virtual bool IsContiguous(ulong va, ulong size)
|
||||
{
|
||||
if (!ValidateAddress(va) || !ValidateAddressAndSize(va, size))
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
int pages = GetPagesCount(va, size, out va);
|
||||
|
||||
for (int page = 0; page < pages - 1; page++)
|
||||
{
|
||||
if (!ValidateAddress(va + PageSize))
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
if (TranslateVirtualAddressUnchecked(va) + PageSize != TranslateVirtualAddressUnchecked(va + PageSize))
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
va += PageSize;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
||||
protected bool IsContiguousAndMapped(ulong va, int size)
|
||||
=> IsContiguous(va, size) && IsMapped(va);
|
||||
|
||||
protected abstract nuint TranslateVirtualAddressChecked(ulong va);
|
||||
|
||||
protected abstract nuint TranslateVirtualAddressUnchecked(ulong va);
|
||||
|
||||
/// <summary>
|
||||
/// Checks if the virtual address is part of the addressable space.
|
||||
/// </summary>
|
||||
/// <param name="va">Virtual address</param>
|
||||
/// <returns>True if the virtual address is part of the addressable space</returns>
|
||||
protected bool ValidateAddress(TVirtual va)
|
||||
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
||||
protected bool ValidateAddress(ulong va)
|
||||
{
|
||||
return va < AddressSpaceSize;
|
||||
}
|
||||
|
|
@ -79,13 +353,53 @@ namespace Ryujinx.Memory
|
|||
/// <param name="va">Virtual address of the range</param>
|
||||
/// <param name="size">Size of the range in bytes</param>
|
||||
/// <returns>True if the combination of virtual address and size is part of the addressable space</returns>
|
||||
protected bool ValidateAddressAndSize(TVirtual va, TVirtual size)
|
||||
protected bool ValidateAddressAndSize(ulong va, ulong size)
|
||||
{
|
||||
TVirtual endVa = va + size;
|
||||
ulong endVa = va + size;
|
||||
return endVa >= va && endVa >= size && endVa <= AddressSpaceSize;
|
||||
}
|
||||
|
||||
protected static void ThrowInvalidMemoryRegionException(string message)
|
||||
=> throw new InvalidMemoryRegionException(message);
|
||||
|
||||
protected static void ThrowMemoryNotContiguous()
|
||||
=> throw new MemoryNotContiguousException();
|
||||
|
||||
protected virtual void WriteImpl(ulong va, ReadOnlySpan<byte> data)
|
||||
{
|
||||
AssertValidAddressAndSize(va, data.Length);
|
||||
|
||||
if (IsContiguousAndMapped(va, data.Length))
|
||||
{
|
||||
nuint pa = TranslateVirtualAddressUnchecked(va);
|
||||
|
||||
data.CopyTo(GetPhysicalAddressSpan(pa, data.Length));
|
||||
}
|
||||
else
|
||||
{
|
||||
int offset = 0, size;
|
||||
|
||||
if ((va & PageMask) != 0)
|
||||
{
|
||||
nuint pa = TranslateVirtualAddressChecked(va);
|
||||
|
||||
size = Math.Min(data.Length, PageSize - (int)(va & PageMask));
|
||||
|
||||
data[..size].CopyTo(GetPhysicalAddressSpan(pa, size));
|
||||
|
||||
offset += size;
|
||||
}
|
||||
|
||||
for (; offset < data.Length; offset += size)
|
||||
{
|
||||
nuint pa = TranslateVirtualAddressChecked(va + (ulong)offset);
|
||||
|
||||
size = Math.Min(data.Length - offset, PageSize);
|
||||
|
||||
data.Slice(offset, size).CopyTo(GetPhysicalAddressSpan(pa, size));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,4 +1,5 @@
|
|||
using System;
|
||||
using System.Buffers;
|
||||
|
||||
namespace Ryujinx.Memory
|
||||
{
|
||||
|
|
@ -6,6 +7,7 @@ namespace Ryujinx.Memory
|
|||
{
|
||||
private readonly IWritableBlock _block;
|
||||
private readonly ulong _va;
|
||||
private readonly IMemoryOwner<byte> _memoryOwner;
|
||||
private readonly bool _tracked;
|
||||
|
||||
private bool NeedsWriteback => _block != null;
|
||||
|
|
@ -20,6 +22,12 @@ namespace Ryujinx.Memory
|
|||
Memory = memory;
|
||||
}
|
||||
|
||||
public WritableRegion(IWritableBlock block, ulong va, IMemoryOwner<byte> memoryOwner, bool tracked = false)
|
||||
: this(block, va, memoryOwner.Memory, tracked)
|
||||
{
|
||||
_memoryOwner = memoryOwner;
|
||||
}
|
||||
|
||||
public void Dispose()
|
||||
{
|
||||
if (NeedsWriteback)
|
||||
|
|
@ -33,6 +41,8 @@ namespace Ryujinx.Memory
|
|||
_block.WriteUntracked(_va, Memory.Span);
|
||||
}
|
||||
}
|
||||
|
||||
_memoryOwner?.Dispose();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,6 +1,7 @@
|
|||
using Ryujinx.Memory;
|
||||
using Ryujinx.Memory.Range;
|
||||
using System;
|
||||
using System.Buffers;
|
||||
using System.Collections.Generic;
|
||||
|
||||
namespace Ryujinx.Tests.Memory
|
||||
|
|
@ -57,6 +58,11 @@ namespace Ryujinx.Tests.Memory
|
|||
throw new NotImplementedException();
|
||||
}
|
||||
|
||||
public ReadOnlySequence<byte> GetReadOnlySequence(ulong va, int size, bool tracked = false)
|
||||
{
|
||||
throw new NotImplementedException();
|
||||
}
|
||||
|
||||
public ReadOnlySpan<byte> GetSpan(ulong va, int size, bool tracked = false)
|
||||
{
|
||||
throw new NotImplementedException();
|
||||
|
|
|
|||
Reference in a new issue