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ARMeilleure: Move TPIDR_EL0 and TPIDRRO_EL0 to NativeContext (#4661)

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* ARMeilleure: Move TPIDR_EL0 and TPIDRRO_EL0 to NativeContext

Some games access these system registers several tens of thousands of times in a second from many different threads. While this isn't really crippling, it is a lot of wasted time spent in a reverse pinvoke transition.

Example games are Pokemon Scarlet/Violet and BOTW. These games have a lot of different potential bottlenecks so it's unlikely you will see a consistent improvement, but it definitely disappears from the cpu profile.

* Remove unreachable code.

* Add ulong conversion for offsets

* Nit
This commit is contained in:
riperiperi 2023-04-11 07:55:04 +01:00 committed by GitHub
parent 915d6d044c
commit 9ef94c8292
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GPG Key ID: 4AEE18F83AFDEB23
7 changed files with 101 additions and 58 deletions
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43
ARMeilleure/Instructions/InstEmitSystem.cs
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@ -33,8 +33,8 @@ namespace ARMeilleure.Instructions
case 0b11_011_0100_0010_000: EmitGetNzcv(context); return;
case 0b11_011_0100_0100_000: EmitGetFpcr(context); return;
case 0b11_011_0100_0100_001: EmitGetFpsr(context); return;
case 0b11_011_1101_0000_010: info = typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetTpidrEl0)); break;
case 0b11_011_1101_0000_011: info = typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetTpidrroEl0)); break;
case 0b11_011_1101_0000_010: EmitGetTpidrEl0(context); return;
case 0b11_011_1101_0000_011: EmitGetTpidrroEl0(context); return;
case 0b11_011_1110_0000_000: info = typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetCntfrqEl0)); break;
case 0b11_011_1110_0000_001: info = typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetCntpctEl0)); break;
case 0b11_011_1110_0000_010: info = typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetCntvctEl0)); break;
@ -49,19 +49,15 @@ namespace ARMeilleure.Instructions
{
OpCodeSystem op = (OpCodeSystem)context.CurrOp;
MethodInfo info;
switch (GetPackedId(op))
{
case 0b11_011_0100_0010_000: EmitSetNzcv(context); return;
case 0b11_011_0100_0100_000: EmitSetFpcr(context); return;
case 0b11_011_0100_0100_001: EmitSetFpsr(context); return;
case 0b11_011_1101_0000_010: info = typeof(NativeInterface).GetMethod(nameof(NativeInterface.SetTpidrEl0)); break;
case 0b11_011_1101_0000_010: EmitSetTpidrEl0(context); return;
default: throw new NotImplementedException($"Unknown MSR 0x{op.RawOpCode:X8} at 0x{op.Address:X16}.");
}
context.Call(info, GetIntOrZR(context, op.Rt));
}
public static void Nop(ArmEmitterContext context)
@ -165,6 +161,28 @@ namespace ARMeilleure.Instructions
SetIntOrZR(context, op.Rt, fpsr);
}
private static void EmitGetTpidrEl0(ArmEmitterContext context)
{
OpCodeSystem op = (OpCodeSystem)context.CurrOp;
Operand nativeContext = context.LoadArgument(OperandType.I64, 0);
Operand result = context.Load(OperandType.I64, context.Add(nativeContext, Const((ulong)NativeContext.GetTpidrEl0Offset())));
SetIntOrZR(context, op.Rt, result);
}
private static void EmitGetTpidrroEl0(ArmEmitterContext context)
{
OpCodeSystem op = (OpCodeSystem)context.CurrOp;
Operand nativeContext = context.LoadArgument(OperandType.I64, 0);
Operand result = context.Load(OperandType.I64, context.Add(nativeContext, Const((ulong)NativeContext.GetTpidrroEl0Offset())));
SetIntOrZR(context, op.Rt, result);
}
private static void EmitSetNzcv(ArmEmitterContext context)
{
OpCodeSystem op = (OpCodeSystem)context.CurrOp;
@ -215,5 +233,16 @@ namespace ARMeilleure.Instructions
context.UpdateArmFpMode();
}
private static void EmitSetTpidrEl0(ArmEmitterContext context)
{
OpCodeSystem op = (OpCodeSystem)context.CurrOp;
Operand value = GetIntOrZR(context, op.Rt);
Operand nativeContext = context.LoadArgument(OperandType.I64, 0);
context.Store(context.Add(nativeContext, Const((ulong)NativeContext.GetTpidrEl0Offset())), value);
}
}
}

47
ARMeilleure/Instructions/InstEmitSystem32.cs
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@ -23,8 +23,6 @@ namespace ARMeilleure.Instructions
return;
}
MethodInfo info;
switch (op.CRn)
{
case 13: // Process and Thread Info.
@ -36,14 +34,12 @@ namespace ARMeilleure.Instructions
switch (op.Opc2)
{
case 2:
info = typeof(NativeInterface).GetMethod(nameof(NativeInterface.SetTpidrEl032)); break;
EmitSetTpidrEl0(context); return;
default:
throw new NotImplementedException($"Unknown MRC Opc2 0x{op.Opc2:X} at 0x{op.Address:X} (0x{op.RawOpCode:X}).");
}
break;
case 7:
switch (op.CRm) // Cache and Memory barrier.
{
@ -64,8 +60,6 @@ namespace ARMeilleure.Instructions
default:
throw new NotImplementedException($"Unknown MRC 0x{op.RawOpCode:X8} at 0x{op.Address:X16}.");
}
context.Call(info, GetIntA32(context, op.Rt));
}
public static void Mrc(ArmEmitterContext context)
@ -79,7 +73,7 @@ namespace ARMeilleure.Instructions
return;
}
MethodInfo info;
Operand result;
switch (op.CRn)
{
@ -92,10 +86,10 @@ namespace ARMeilleure.Instructions
switch (op.Opc2)
{
case 2:
info = typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetTpidrEl032)); break;
result = EmitGetTpidrEl0(context); break;
case 3:
info = typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetTpidr32)); break;
result = EmitGetTpidrroEl0(context); break;
default:
throw new NotImplementedException($"Unknown MRC Opc2 0x{op.Opc2:X} at 0x{op.Address:X} (0x{op.RawOpCode:X}).");
@ -110,13 +104,13 @@ namespace ARMeilleure.Instructions
if (op.Rt == RegisterAlias.Aarch32Pc)
{
// Special behavior: copy NZCV flags into APSR.
EmitSetNzcv(context, context.Call(info));
EmitSetNzcv(context, result);
return;
}
else
{
SetIntA32(context, op.Rt, context.Call(info));
SetIntA32(context, op.Rt, result);
}
}
@ -324,5 +318,34 @@ namespace ARMeilleure.Instructions
context.UpdateArmFpMode();
}
private static Operand EmitGetTpidrEl0(ArmEmitterContext context)
{
OpCode32System op = (OpCode32System)context.CurrOp;
Operand nativeContext = context.LoadArgument(OperandType.I64, 0);
return context.Load(OperandType.I64, context.Add(nativeContext, Const((ulong)NativeContext.GetTpidrEl0Offset())));
}
private static Operand EmitGetTpidrroEl0(ArmEmitterContext context)
{
OpCode32System op = (OpCode32System)context.CurrOp;
Operand nativeContext = context.LoadArgument(OperandType.I64, 0);
return context.Load(OperandType.I64, context.Add(nativeContext, Const((ulong)NativeContext.GetTpidrroEl0Offset())));
}
private static void EmitSetTpidrEl0(ArmEmitterContext context)
{
OpCode32System op = (OpCode32System)context.CurrOp;
Operand value = GetIntA32(context, op.Rt);
Operand nativeContext = context.LoadArgument(OperandType.I64, 0);
context.Store(context.Add(nativeContext, Const((ulong)NativeContext.GetTpidrEl0Offset())), context.ZeroExtend32(OperandType.I64, value));
}
}
}

30
ARMeilleure/Instructions/NativeInterface.cs
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@ -72,26 +72,6 @@ namespace ARMeilleure.Instructions
return (ulong)GetContext().DczidEl0;
}
public static ulong GetTpidrEl0()
{
return (ulong)GetContext().TpidrEl0;
}
public static uint GetTpidrEl032()
{
return (uint)GetContext().TpidrEl0;
}
public static ulong GetTpidrroEl0()
{
return (ulong)GetContext().TpidrroEl0;
}
public static uint GetTpidr32()
{
return (uint)GetContext().TpidrroEl0;
}
public static ulong GetCntfrqEl0()
{
return GetContext().CntfrqEl0;
@ -106,16 +86,6 @@ namespace ARMeilleure.Instructions
{
return GetContext().CntvctEl0;
}
public static void SetTpidrEl0(ulong value)
{
GetContext().TpidrEl0 = (long)value;
}
public static void SetTpidrEl032(uint value)
{
GetContext().TpidrEl0 = (long)value;
}
#endregion
#region "Read"

13
ARMeilleure/State/ExecutionContext.cs
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@ -27,8 +27,17 @@ namespace ARMeilleure.State
// Since EL2 isn't implemented, CNTVOFF_EL2 = 0
public ulong CntvctEl0 => CntpctEl0;
public long TpidrEl0 { get; set; }
public long TpidrroEl0 { get; set; }
public long TpidrEl0
{
get => _nativeContext.GetTpidrEl0();
set => _nativeContext.SetTpidrEl0(value);
}
public long TpidrroEl0
{
get => _nativeContext.GetTpidrroEl0();
set => _nativeContext.SetTpidrroEl0(value);
}
public uint Pstate
{

18
ARMeilleure/State/NativeContext.cs
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@ -13,6 +13,8 @@ namespace ARMeilleure.State
public fixed ulong V[RegisterConsts.VecRegsCount * 2];
public fixed uint Flags[RegisterConsts.FlagsCount];
public fixed uint FpFlags[RegisterConsts.FpFlagsCount];
public long TpidrEl0;
public long TpidrroEl0;
public int Counter;
public ulong DispatchAddress;
public ulong ExclusiveAddress;
@ -168,6 +170,12 @@ namespace ARMeilleure.State
}
}
public long GetTpidrEl0() => GetStorage().TpidrEl0;
public void SetTpidrEl0(long value) => GetStorage().TpidrEl0 = value;
public long GetTpidrroEl0() => GetStorage().TpidrroEl0;
public void SetTpidrroEl0(long value) => GetStorage().TpidrroEl0 = value;
public int GetCounter() => GetStorage().Counter;
public void SetCounter(int value) => GetStorage().Counter = value;
@ -214,6 +222,16 @@ namespace ARMeilleure.State
}
}
public static int GetTpidrEl0Offset()
{
return StorageOffset(ref _dummyStorage, ref _dummyStorage.TpidrEl0);
}
public static int GetTpidrroEl0Offset()
{
return StorageOffset(ref _dummyStorage, ref _dummyStorage.TpidrroEl0);
}
public static int GetCounterOffset()
{
return StorageOffset(ref _dummyStorage, ref _dummyStorage.Counter);

6
ARMeilleure/Translation/Delegates.cs
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@ -105,17 +105,11 @@ namespace ARMeilleure.Translation
SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetDczidEl0)));
SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetFunctionAddress)));
SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.InvalidateCacheLine)));
SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetTpidrroEl0)));
SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetTpidr32))); // A32 only.
SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetTpidrEl0)));
SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetTpidrEl032))); // A32 only.
SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.ReadByte)));
SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.ReadUInt16)));
SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.ReadUInt32)));
SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.ReadUInt64)));
SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.ReadVector128)));
SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.SetTpidrEl0)));
SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.SetTpidrEl032))); // A32 only.
SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.SignalMemoryTracking)));
SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.SupervisorCall)));
SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.ThrowInvalidMemoryAccess)));

2
ARMeilleure/Translation/PTC/Ptc.cs
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@ -30,7 +30,7 @@ namespace ARMeilleure.Translation.PTC
private const string OuterHeaderMagicString = "PTCohd\0\0";
private const string InnerHeaderMagicString = "PTCihd\0\0";
private const uint InternalVersion = 4626; //! To be incremented manually for each change to the ARMeilleure project.
private const uint InternalVersion = 4661; //! To be incremented manually for each change to the ARMeilleure project.
private const string ActualDir = "0";
private const string BackupDir = "1";