mirror of
https://github.com/Ryujinx/Ryujinx.git
synced 2024-08-18 06:38:42 +02:00
* Some style fixes and nits on ITimeZoneService * Remove some unneeded usings * Remove the Ryujinx.HLE.OsHle.Handles namespace * Remove hbmenu automatic load on process exit * Rename Ns to Device, rename Os to System, rename SystemState to State * Move Exceptions and Utilities out of OsHle * Rename OsHle to HOS * Rename OsHle folder to HOS * IManagerDisplayService and ISystemDisplayService style fixes * BsdError shouldn't be public * Add a empty new line before using static * Remove unused file * Some style fixes on NPDM * Exit gracefully when the application is closed * Code style fixes on IGeneralService * Add 0x prefix on values printed as hex * Small improvements on finalization code * Move ProcessId and ThreadId out of AThreadState * Rename VFs to FileSystem * FsAccessHeader shouldn't be public. Also fix file names casing * More case changes on NPDM * Remove unused files * Move using to the correct place on NPDM * Use properties on KernelAccessControlMmio * Address PR feedback
709 lines
19 KiB
C#
709 lines
19 KiB
C#
using ChocolArm64.Exceptions;
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using ChocolArm64.State;
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using System;
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using System.Collections.Concurrent;
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using System.Collections.Generic;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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using System.Runtime.Intrinsics;
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using System.Runtime.Intrinsics.X86;
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using System.Threading;
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namespace ChocolArm64.Memory
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{
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public unsafe class AMemory : IAMemory, IDisposable
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{
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private const int PTLvl0Bits = 13;
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private const int PTLvl1Bits = 14;
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private const int PTPageBits = 12;
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private const int PTLvl0Size = 1 << PTLvl0Bits;
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private const int PTLvl1Size = 1 << PTLvl1Bits;
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public const int PageSize = 1 << PTPageBits;
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private const int PTLvl0Mask = PTLvl0Size - 1;
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private const int PTLvl1Mask = PTLvl1Size - 1;
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public const int PageMask = PageSize - 1;
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private const int PTLvl0Bit = PTPageBits + PTLvl1Bits;
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private const int PTLvl1Bit = PTPageBits;
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private const long ErgMask = (4 << AThreadState.ErgSizeLog2) - 1;
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private class ArmMonitor
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{
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public long Position;
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public bool ExState;
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public bool HasExclusiveAccess(long Position)
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{
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return this.Position == Position && ExState;
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}
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}
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private Dictionary<AThreadState, ArmMonitor> Monitors;
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private ConcurrentDictionary<long, IntPtr> ObservedPages;
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public IntPtr Ram { get; private set; }
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private byte* RamPtr;
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private byte*** PageTable;
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public AMemory(IntPtr Ram)
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{
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Monitors = new Dictionary<AThreadState, ArmMonitor>();
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ObservedPages = new ConcurrentDictionary<long, IntPtr>();
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this.Ram = Ram;
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RamPtr = (byte*)Ram;
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PageTable = (byte***)Marshal.AllocHGlobal(PTLvl0Size * IntPtr.Size);
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for (int L0 = 0; L0 < PTLvl0Size; L0++)
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{
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PageTable[L0] = null;
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}
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}
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public void RemoveMonitor(AThreadState State)
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{
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lock (Monitors)
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{
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ClearExclusive(State);
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Monitors.Remove(State);
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}
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}
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public void SetExclusive(AThreadState ThreadState, long Position)
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{
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Position &= ~ErgMask;
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lock (Monitors)
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{
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foreach (ArmMonitor Mon in Monitors.Values)
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{
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if (Mon.Position == Position && Mon.ExState)
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{
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Mon.ExState = false;
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}
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}
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if (!Monitors.TryGetValue(ThreadState, out ArmMonitor ThreadMon))
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{
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ThreadMon = new ArmMonitor();
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Monitors.Add(ThreadState, ThreadMon);
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}
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ThreadMon.Position = Position;
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ThreadMon.ExState = true;
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}
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}
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public bool TestExclusive(AThreadState ThreadState, long Position)
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{
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//Note: Any call to this method also should be followed by a
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//call to ClearExclusiveForStore if this method returns true.
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Position &= ~ErgMask;
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Monitor.Enter(Monitors);
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if (!Monitors.TryGetValue(ThreadState, out ArmMonitor ThreadMon))
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{
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return false;
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}
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bool ExState = ThreadMon.HasExclusiveAccess(Position);
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if (!ExState)
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{
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Monitor.Exit(Monitors);
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}
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return ExState;
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}
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public void ClearExclusiveForStore(AThreadState ThreadState)
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{
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if (Monitors.TryGetValue(ThreadState, out ArmMonitor ThreadMon))
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{
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ThreadMon.ExState = false;
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}
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Monitor.Exit(Monitors);
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}
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public void ClearExclusive(AThreadState ThreadState)
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{
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lock (Monitors)
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{
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if (Monitors.TryGetValue(ThreadState, out ArmMonitor ThreadMon))
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{
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ThreadMon.ExState = false;
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}
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}
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}
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public void WriteInt32ToSharedAddr(long Position, int Value)
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{
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long MaskedPosition = Position & ~ErgMask;
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lock (Monitors)
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{
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foreach (ArmMonitor Mon in Monitors.Values)
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{
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if (Mon.Position == MaskedPosition && Mon.ExState)
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{
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Mon.ExState = false;
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}
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}
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WriteInt32(Position, Value);
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}
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}
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public sbyte ReadSByte(long Position)
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{
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return (sbyte)ReadByte(Position);
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}
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public short ReadInt16(long Position)
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{
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return (short)ReadUInt16(Position);
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}
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public int ReadInt32(long Position)
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{
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return (int)ReadUInt32(Position);
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}
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public long ReadInt64(long Position)
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{
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return (long)ReadUInt64(Position);
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}
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public byte ReadByte(long Position)
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{
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return *((byte*)Translate(Position));
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}
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public ushort ReadUInt16(long Position)
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{
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return *((ushort*)Translate(Position));
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}
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public uint ReadUInt32(long Position)
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{
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return *((uint*)Translate(Position));
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}
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public ulong ReadUInt64(long Position)
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{
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return *((ulong*)Translate(Position));
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}
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public Vector128<float> ReadVector8(long Position)
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{
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if (Sse2.IsSupported)
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{
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return Sse.StaticCast<byte, float>(Sse2.SetVector128(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, ReadByte(Position)));
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}
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else
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{
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throw new PlatformNotSupportedException();
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}
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public Vector128<float> ReadVector16(long Position)
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{
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if (Sse2.IsSupported)
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{
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return Sse.StaticCast<ushort, float>(Sse2.Insert(Sse2.SetZeroVector128<ushort>(), ReadUInt16(Position), 0));
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}
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else
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{
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throw new PlatformNotSupportedException();
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}
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}
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[MethodImpl(MethodImplOptions.NoInlining)]
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public Vector128<float> ReadVector32(long Position)
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{
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if (Sse.IsSupported)
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{
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return Sse.LoadScalarVector128((float*)Translate(Position));
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}
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else
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{
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throw new PlatformNotSupportedException();
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}
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}
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[MethodImpl(MethodImplOptions.NoInlining)]
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public Vector128<float> ReadVector64(long Position)
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{
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if (Sse2.IsSupported)
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{
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return Sse.StaticCast<double, float>(Sse2.LoadScalarVector128((double*)Translate(Position)));
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}
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else
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{
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throw new PlatformNotSupportedException();
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}
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public Vector128<float> ReadVector128(long Position)
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{
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if (Sse.IsSupported)
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{
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return Sse.LoadVector128((float*)Translate(Position));
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}
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else
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{
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throw new PlatformNotSupportedException();
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}
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}
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public byte[] ReadBytes(long Position, long Size)
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{
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if ((uint)Size > int.MaxValue)
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{
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throw new ArgumentOutOfRangeException(nameof(Size));
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}
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EnsureRangeIsValid(Position, Size);
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byte[] Data = new byte[Size];
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Marshal.Copy((IntPtr)Translate(Position), Data, 0, (int)Size);
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return Data;
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}
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public void WriteSByte(long Position, sbyte Value)
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{
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WriteByte(Position, (byte)Value);
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}
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public void WriteInt16(long Position, short Value)
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{
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WriteUInt16(Position, (ushort)Value);
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}
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public void WriteInt32(long Position, int Value)
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{
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WriteUInt32(Position, (uint)Value);
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}
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public void WriteInt64(long Position, long Value)
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{
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WriteUInt64(Position, (ulong)Value);
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}
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public void WriteByte(long Position, byte Value)
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{
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*((byte*)TranslateWrite(Position)) = Value;
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}
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public void WriteUInt16(long Position, ushort Value)
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{
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*((ushort*)TranslateWrite(Position)) = Value;
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}
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public void WriteUInt32(long Position, uint Value)
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{
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*((uint*)TranslateWrite(Position)) = Value;
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}
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public void WriteUInt64(long Position, ulong Value)
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{
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*((ulong*)TranslateWrite(Position)) = Value;
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public void WriteVector8(long Position, Vector128<float> Value)
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{
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if (Sse41.IsSupported)
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{
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WriteByte(Position, Sse41.Extract(Sse.StaticCast<float, byte>(Value), 0));
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}
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else if (Sse2.IsSupported)
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{
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WriteByte(Position, (byte)Sse2.Extract(Sse.StaticCast<float, ushort>(Value), 0));
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}
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else
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{
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throw new PlatformNotSupportedException();
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}
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public void WriteVector16(long Position, Vector128<float> Value)
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{
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if (Sse2.IsSupported)
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{
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WriteUInt16(Position, Sse2.Extract(Sse.StaticCast<float, ushort>(Value), 0));
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}
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else
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{
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throw new PlatformNotSupportedException();
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}
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}
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[MethodImpl(MethodImplOptions.NoInlining)]
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public void WriteVector32(long Position, Vector128<float> Value)
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{
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if (Sse.IsSupported)
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{
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Sse.StoreScalar((float*)TranslateWrite(Position), Value);
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}
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else
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{
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throw new PlatformNotSupportedException();
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}
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}
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[MethodImpl(MethodImplOptions.NoInlining)]
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public void WriteVector64(long Position, Vector128<float> Value)
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{
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if (Sse2.IsSupported)
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{
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Sse2.StoreScalar((double*)TranslateWrite(Position), Sse.StaticCast<float, double>(Value));
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}
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else
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{
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throw new PlatformNotSupportedException();
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}
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public void WriteVector128(long Position, Vector128<float> Value)
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{
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if (Sse.IsSupported)
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{
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Sse.Store((float*)TranslateWrite(Position), Value);
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}
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else
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{
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throw new PlatformNotSupportedException();
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}
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}
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public void WriteBytes(long Position, byte[] Data)
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{
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EnsureRangeIsValid(Position, (uint)Data.Length);
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Marshal.Copy(Data, 0, (IntPtr)TranslateWrite(Position), Data.Length);
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}
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public void Map(long VA, long PA, long Size)
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{
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SetPTEntries(VA, RamPtr + PA, Size);
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}
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public void Unmap(long Position, long Size)
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{
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SetPTEntries(Position, null, Size);
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StopObservingRegion(Position, Size);
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}
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public bool IsMapped(long Position)
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{
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if (!(IsValidPosition(Position)))
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{
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return false;
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}
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long L0 = (Position >> PTLvl0Bit) & PTLvl0Mask;
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long L1 = (Position >> PTLvl1Bit) & PTLvl1Mask;
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if (PageTable[L0] == null)
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{
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return false;
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}
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return PageTable[L0][L1] != null || ObservedPages.ContainsKey(Position >> PTPageBits);
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}
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public long GetPhysicalAddress(long VirtualAddress)
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{
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byte* Ptr = Translate(VirtualAddress);
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return (long)(Ptr - RamPtr);
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}
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internal byte* Translate(long Position)
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{
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long L0 = (Position >> PTLvl0Bit) & PTLvl0Mask;
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long L1 = (Position >> PTLvl1Bit) & PTLvl1Mask;
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long Old = Position;
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byte** Lvl1 = PageTable[L0];
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if ((Position >> (PTLvl0Bit + PTLvl0Bits)) != 0)
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{
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goto Unmapped;
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}
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if (Lvl1 == null)
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{
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goto Unmapped;
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}
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Position &= PageMask;
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byte* Ptr = Lvl1[L1];
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if (Ptr == null)
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{
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goto Unmapped;
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}
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return Ptr + Position;
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Unmapped:
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return HandleNullPte(Old);
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}
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private byte* HandleNullPte(long Position)
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{
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long Key = Position >> PTPageBits;
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if (ObservedPages.TryGetValue(Key, out IntPtr Ptr))
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{
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return (byte*)Ptr + (Position & PageMask);
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}
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throw new VmmPageFaultException(Position);
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}
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internal byte* TranslateWrite(long Position)
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{
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long L0 = (Position >> PTLvl0Bit) & PTLvl0Mask;
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long L1 = (Position >> PTLvl1Bit) & PTLvl1Mask;
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long Old = Position;
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byte** Lvl1 = PageTable[L0];
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if ((Position >> (PTLvl0Bit + PTLvl0Bits)) != 0)
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{
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goto Unmapped;
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}
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if (Lvl1 == null)
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{
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goto Unmapped;
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}
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Position &= PageMask;
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byte* Ptr = Lvl1[L1];
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if (Ptr == null)
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{
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goto Unmapped;
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}
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return Ptr + Position;
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Unmapped:
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return HandleNullPteWrite(Old);
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}
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private byte* HandleNullPteWrite(long Position)
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{
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long Key = Position >> PTPageBits;
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if (ObservedPages.TryGetValue(Key, out IntPtr Ptr))
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{
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SetPTEntry(Position, (byte*)Ptr);
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return (byte*)Ptr + (Position & PageMask);
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}
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throw new VmmPageFaultException(Position);
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}
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private void SetPTEntries(long VA, byte* Ptr, long Size)
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{
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long EndPosition = (VA + Size + PageMask) & ~PageMask;
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while ((ulong)VA < (ulong)EndPosition)
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{
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SetPTEntry(VA, Ptr);
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VA += PageSize;
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if (Ptr != null)
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{
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Ptr += PageSize;
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}
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}
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}
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private void SetPTEntry(long Position, byte* Ptr)
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{
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if (!IsValidPosition(Position))
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{
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throw new ArgumentOutOfRangeException(nameof(Position));
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}
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long L0 = (Position >> PTLvl0Bit) & PTLvl0Mask;
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long L1 = (Position >> PTLvl1Bit) & PTLvl1Mask;
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if (PageTable[L0] == null)
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{
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byte** Lvl1 = (byte**)Marshal.AllocHGlobal(PTLvl1Size * IntPtr.Size);
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for (int ZL1 = 0; ZL1 < PTLvl1Size; ZL1++)
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{
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Lvl1[ZL1] = null;
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}
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Thread.MemoryBarrier();
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PageTable[L0] = Lvl1;
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}
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PageTable[L0][L1] = Ptr;
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}
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public (bool[], int) IsRegionModified(long Position, long Size)
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{
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long EndPosition = (Position + Size + PageMask) & ~PageMask;
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Position &= ~PageMask;
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Size = EndPosition - Position;
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bool[] Modified = new bool[Size >> PTPageBits];
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int Count = 0;
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lock (ObservedPages)
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{
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for (int Page = 0; Page < Modified.Length; Page++)
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{
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byte* Ptr = Translate(Position);
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if (ObservedPages.TryAdd(Position >> PTPageBits, (IntPtr)Ptr))
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{
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Modified[Page] = true;
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Count++;
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}
|
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else
|
|
{
|
|
long L0 = (Position >> PTLvl0Bit) & PTLvl0Mask;
|
|
long L1 = (Position >> PTLvl1Bit) & PTLvl1Mask;
|
|
|
|
byte** Lvl1 = PageTable[L0];
|
|
|
|
if (Lvl1 != null)
|
|
{
|
|
if (Modified[Page] = Lvl1[L1] != null)
|
|
{
|
|
Count++;
|
|
}
|
|
}
|
|
}
|
|
|
|
SetPTEntry(Position, null);
|
|
|
|
Position += PageSize;
|
|
}
|
|
}
|
|
|
|
return (Modified, Count);
|
|
}
|
|
|
|
public void StopObservingRegion(long Position, long Size)
|
|
{
|
|
long EndPosition = (Position + Size + PageMask) & ~PageMask;
|
|
|
|
while (Position < EndPosition)
|
|
{
|
|
lock (ObservedPages)
|
|
{
|
|
if (ObservedPages.TryRemove(Position >> PTPageBits, out IntPtr Ptr))
|
|
{
|
|
SetPTEntry(Position, (byte*)Ptr);
|
|
}
|
|
}
|
|
|
|
Position += PageSize;
|
|
}
|
|
}
|
|
|
|
public IntPtr GetHostAddress(long Position, long Size)
|
|
{
|
|
EnsureRangeIsValid(Position, Size);
|
|
|
|
return (IntPtr)Translate(Position);
|
|
}
|
|
|
|
internal void EnsureRangeIsValid(long Position, long Size)
|
|
{
|
|
long EndPos = Position + Size;
|
|
|
|
Position &= ~PageMask;
|
|
|
|
long ExpectedPA = GetPhysicalAddress(Position);
|
|
|
|
while ((ulong)Position < (ulong)EndPos)
|
|
{
|
|
long PA = GetPhysicalAddress(Position);
|
|
|
|
if (PA != ExpectedPA)
|
|
{
|
|
throw new VmmAccessException(Position, Size);
|
|
}
|
|
|
|
Position += PageSize;
|
|
ExpectedPA += PageSize;
|
|
}
|
|
}
|
|
|
|
public bool IsValidPosition(long Position)
|
|
{
|
|
return Position >> (PTLvl0Bits + PTLvl1Bits + PTPageBits) == 0;
|
|
}
|
|
|
|
public void Dispose()
|
|
{
|
|
Dispose(true);
|
|
}
|
|
|
|
protected virtual void Dispose(bool disposing)
|
|
{
|
|
if (PageTable == null)
|
|
{
|
|
return;
|
|
}
|
|
|
|
for (int L0 = 0; L0 < PTLvl0Size; L0++)
|
|
{
|
|
if (PageTable[L0] != null)
|
|
{
|
|
Marshal.FreeHGlobal((IntPtr)PageTable[L0]);
|
|
}
|
|
|
|
PageTable[L0] = null;
|
|
}
|
|
|
|
Marshal.FreeHGlobal((IntPtr)PageTable);
|
|
|
|
PageTable = null;
|
|
}
|
|
}
|
|
} |