mirror of
https://github.com/Ryujinx/Ryujinx.git
synced 2024-12-30 12:36:01 +00:00
536 lines
18 KiB
C#
536 lines
18 KiB
C#
using ARMeilleure.CodeGen;
|
|
using ARMeilleure.Common;
|
|
using ARMeilleure.Decoders;
|
|
using ARMeilleure.Diagnostics;
|
|
using ARMeilleure.Instructions;
|
|
using ARMeilleure.IntermediateRepresentation;
|
|
using ARMeilleure.Memory;
|
|
using ARMeilleure.Signal;
|
|
using ARMeilleure.State;
|
|
using ARMeilleure.Translation.Cache;
|
|
using ARMeilleure.Translation.PTC;
|
|
using Ryujinx.Common;
|
|
using System;
|
|
using System.Collections.Concurrent;
|
|
using System.Collections.Generic;
|
|
using System.Diagnostics;
|
|
using System.Threading;
|
|
using static ARMeilleure.IntermediateRepresentation.Operand.Factory;
|
|
|
|
namespace ARMeilleure.Translation
|
|
{
|
|
public class Translator
|
|
{
|
|
private static readonly AddressTable<ulong>.Level[] Levels64Bit =
|
|
new AddressTable<ulong>.Level[]
|
|
{
|
|
new(31, 17),
|
|
new(23, 8),
|
|
new(15, 8),
|
|
new( 7, 8),
|
|
new( 2, 5)
|
|
};
|
|
|
|
private static readonly AddressTable<ulong>.Level[] Levels32Bit =
|
|
new AddressTable<ulong>.Level[]
|
|
{
|
|
new(31, 17),
|
|
new(23, 8),
|
|
new(15, 8),
|
|
new( 7, 8),
|
|
new( 1, 6)
|
|
};
|
|
|
|
private readonly IJitMemoryAllocator _allocator;
|
|
private readonly ConcurrentQueue<KeyValuePair<ulong, TranslatedFunction>> _oldFuncs;
|
|
|
|
internal TranslatorCache<TranslatedFunction> Functions { get; }
|
|
internal AddressTable<ulong> FunctionTable { get; }
|
|
internal EntryTable<uint> CountTable { get; }
|
|
internal TranslatorStubs Stubs { get; }
|
|
internal TranslatorQueue Queue { get; }
|
|
internal IMemoryManager Memory { get; }
|
|
|
|
private volatile int _threadCount;
|
|
|
|
// FIXME: Remove this once the init logic of the emulator will be redone.
|
|
public static readonly ManualResetEvent IsReadyForTranslation = new(false);
|
|
|
|
public Translator(IJitMemoryAllocator allocator, IMemoryManager memory, bool for64Bits)
|
|
{
|
|
_allocator = allocator;
|
|
Memory = memory;
|
|
|
|
_oldFuncs = new ConcurrentQueue<KeyValuePair<ulong, TranslatedFunction>>();
|
|
|
|
Queue = new TranslatorQueue();
|
|
|
|
JitCache.Initialize(allocator);
|
|
|
|
CountTable = new EntryTable<uint>();
|
|
Functions = new TranslatorCache<TranslatedFunction>();
|
|
FunctionTable = new AddressTable<ulong>(for64Bits ? Levels64Bit : Levels32Bit);
|
|
Stubs = new TranslatorStubs(this);
|
|
|
|
FunctionTable.Fill = (ulong)Stubs.SlowDispatchStub;
|
|
|
|
if (memory.Type.IsHostMapped())
|
|
{
|
|
NativeSignalHandler.InitializeSignalHandler();
|
|
}
|
|
}
|
|
|
|
public void Execute(State.ExecutionContext context, ulong address)
|
|
{
|
|
if (Interlocked.Increment(ref _threadCount) == 1)
|
|
{
|
|
IsReadyForTranslation.WaitOne();
|
|
|
|
if (Ptc.State == PtcState.Enabled)
|
|
{
|
|
Debug.Assert(Functions.Count == 0);
|
|
Ptc.LoadTranslations(this);
|
|
Ptc.MakeAndSaveTranslations(this);
|
|
}
|
|
|
|
PtcProfiler.Start();
|
|
|
|
Ptc.Disable();
|
|
|
|
// Simple heuristic, should be user configurable in future. (1 for 4 core/ht or less, 2 for 6 core + ht
|
|
// etc). All threads are normal priority except from the last, which just fills as much of the last core
|
|
// as the os lets it with a low priority. If we only have one rejit thread, it should be normal priority
|
|
// as highCq code is performance critical.
|
|
//
|
|
// TODO: Use physical cores rather than logical. This only really makes sense for processors with
|
|
// hyperthreading. Requires OS specific code.
|
|
int unboundedThreadCount = Math.Max(1, (Environment.ProcessorCount - 6) / 3);
|
|
int threadCount = Math.Min(4, unboundedThreadCount);
|
|
|
|
for (int i = 0; i < threadCount; i++)
|
|
{
|
|
bool last = i != 0 && i == unboundedThreadCount - 1;
|
|
|
|
Thread backgroundTranslatorThread = new Thread(BackgroundTranslate)
|
|
{
|
|
Name = "CPU.BackgroundTranslatorThread." + i,
|
|
Priority = last ? ThreadPriority.Lowest : ThreadPriority.Normal
|
|
};
|
|
|
|
backgroundTranslatorThread.Start();
|
|
}
|
|
}
|
|
|
|
Statistics.InitializeTimer();
|
|
|
|
NativeInterface.RegisterThread(context, Memory, this);
|
|
|
|
if (Optimizations.UseUnmanagedDispatchLoop)
|
|
{
|
|
Stubs.DispatchLoop(context.NativeContextPtr, address);
|
|
}
|
|
else
|
|
{
|
|
do
|
|
{
|
|
address = ExecuteSingle(context, address);
|
|
}
|
|
while (context.Running && address != 0);
|
|
}
|
|
|
|
NativeInterface.UnregisterThread();
|
|
|
|
if (Interlocked.Decrement(ref _threadCount) == 0)
|
|
{
|
|
ClearJitCache();
|
|
|
|
Queue.Dispose();
|
|
Stubs.Dispose();
|
|
FunctionTable.Dispose();
|
|
CountTable.Dispose();
|
|
}
|
|
}
|
|
|
|
private ulong ExecuteSingle(State.ExecutionContext context, ulong address)
|
|
{
|
|
TranslatedFunction func = GetOrTranslate(address, context.ExecutionMode);
|
|
|
|
Statistics.StartTimer();
|
|
|
|
ulong nextAddr = func.Execute(context);
|
|
|
|
Statistics.StopTimer(address);
|
|
|
|
return nextAddr;
|
|
}
|
|
|
|
public ulong Step(State.ExecutionContext context, ulong address)
|
|
{
|
|
TranslatedFunction func = Translate(address, context.ExecutionMode, highCq: false, singleStep: true);
|
|
|
|
address = func.Execute(context);
|
|
|
|
EnqueueForDeletion(address, func);
|
|
|
|
return address;
|
|
}
|
|
|
|
internal TranslatedFunction GetOrTranslate(ulong address, ExecutionMode mode)
|
|
{
|
|
if (!Functions.TryGetValue(address, out TranslatedFunction func))
|
|
{
|
|
func = Translate(address, mode, highCq: false);
|
|
|
|
TranslatedFunction oldFunc = Functions.GetOrAdd(address, func.GuestSize, func);
|
|
|
|
if (oldFunc != func)
|
|
{
|
|
JitCache.Unmap(func.FuncPtr);
|
|
func = oldFunc;
|
|
}
|
|
|
|
if (PtcProfiler.Enabled)
|
|
{
|
|
PtcProfiler.AddEntry(address, mode, highCq: false);
|
|
}
|
|
|
|
RegisterFunction(address, func);
|
|
}
|
|
|
|
return func;
|
|
}
|
|
|
|
internal void RegisterFunction(ulong guestAddress, TranslatedFunction func)
|
|
{
|
|
if (FunctionTable.IsValid(guestAddress) && (Optimizations.AllowLcqInFunctionTable || func.HighCq))
|
|
{
|
|
Volatile.Write(ref FunctionTable.GetValue(guestAddress), (ulong)func.FuncPtr);
|
|
}
|
|
}
|
|
|
|
internal TranslatedFunction Translate(ulong address, ExecutionMode mode, bool highCq, bool singleStep = false)
|
|
{
|
|
var context = new ArmEmitterContext(
|
|
Memory,
|
|
CountTable,
|
|
FunctionTable,
|
|
Stubs,
|
|
address,
|
|
highCq,
|
|
mode: Aarch32Mode.User);
|
|
|
|
Logger.StartPass(PassName.Decoding);
|
|
|
|
Block[] blocks = Decoder.Decode(Memory, address, mode, highCq, singleStep ? DecoderMode.SingleInstruction : DecoderMode.MultipleBlocks);
|
|
|
|
Logger.EndPass(PassName.Decoding);
|
|
|
|
Logger.StartPass(PassName.Translation);
|
|
|
|
EmitSynchronization(context);
|
|
|
|
if (blocks[0].Address != address)
|
|
{
|
|
context.Branch(context.GetLabel(address));
|
|
}
|
|
|
|
ControlFlowGraph cfg = EmitAndGetCFG(context, blocks, out Range funcRange, out Counter<uint> counter);
|
|
|
|
ulong funcSize = funcRange.End - funcRange.Start;
|
|
|
|
Logger.EndPass(PassName.Translation, cfg);
|
|
|
|
Logger.StartPass(PassName.RegisterUsage);
|
|
|
|
RegisterUsage.RunPass(cfg, mode);
|
|
|
|
Logger.EndPass(PassName.RegisterUsage);
|
|
|
|
var retType = OperandType.I64;
|
|
var argTypes = new OperandType[] { OperandType.I64 };
|
|
|
|
var options = highCq ? CompilerOptions.HighCq : CompilerOptions.None;
|
|
|
|
if (context.HasPtc && !singleStep)
|
|
{
|
|
options |= CompilerOptions.Relocatable;
|
|
}
|
|
|
|
CompiledFunction compiledFunc = Compiler.Compile(cfg, argTypes, retType, options);
|
|
|
|
if (context.HasPtc && !singleStep)
|
|
{
|
|
Hash128 hash = Ptc.ComputeHash(Memory, address, funcSize);
|
|
|
|
Ptc.WriteCompiledFunction(address, funcSize, hash, highCq, compiledFunc);
|
|
}
|
|
|
|
GuestFunction func = compiledFunc.Map<GuestFunction>();
|
|
|
|
Allocators.ResetAll();
|
|
|
|
return new TranslatedFunction(func, counter, funcSize, highCq);
|
|
}
|
|
|
|
private void BackgroundTranslate()
|
|
{
|
|
while (_threadCount != 0 && Queue.TryDequeue(out RejitRequest request))
|
|
{
|
|
TranslatedFunction func = Translate(request.Address, request.Mode, highCq: true);
|
|
|
|
Functions.AddOrUpdate(request.Address, func.GuestSize, func, (key, oldFunc) =>
|
|
{
|
|
EnqueueForDeletion(key, oldFunc);
|
|
return func;
|
|
});
|
|
|
|
if (PtcProfiler.Enabled)
|
|
{
|
|
PtcProfiler.UpdateEntry(request.Address, request.Mode, highCq: true);
|
|
}
|
|
|
|
RegisterFunction(request.Address, func);
|
|
}
|
|
}
|
|
|
|
private struct Range
|
|
{
|
|
public ulong Start { get; }
|
|
public ulong End { get; }
|
|
|
|
public Range(ulong start, ulong end)
|
|
{
|
|
Start = start;
|
|
End = end;
|
|
}
|
|
}
|
|
|
|
private static ControlFlowGraph EmitAndGetCFG(
|
|
ArmEmitterContext context,
|
|
Block[] blocks,
|
|
out Range range,
|
|
out Counter<uint> counter)
|
|
{
|
|
counter = null;
|
|
|
|
ulong rangeStart = ulong.MaxValue;
|
|
ulong rangeEnd = 0;
|
|
|
|
for (int blkIndex = 0; blkIndex < blocks.Length; blkIndex++)
|
|
{
|
|
Block block = blocks[blkIndex];
|
|
|
|
if (!block.Exit)
|
|
{
|
|
if (rangeStart > block.Address)
|
|
{
|
|
rangeStart = block.Address;
|
|
}
|
|
|
|
if (rangeEnd < block.EndAddress)
|
|
{
|
|
rangeEnd = block.EndAddress;
|
|
}
|
|
}
|
|
|
|
if (block.Address == context.EntryAddress && !context.HighCq)
|
|
{
|
|
EmitRejitCheck(context, out counter);
|
|
}
|
|
|
|
context.CurrBlock = block;
|
|
|
|
context.MarkLabel(context.GetLabel(block.Address));
|
|
|
|
if (block.Exit)
|
|
{
|
|
// Left option here as it may be useful if we need to return to managed rather than tail call in
|
|
// future. (eg. for debug)
|
|
bool useReturns = false;
|
|
|
|
InstEmitFlowHelper.EmitVirtualJump(context, Const(block.Address), isReturn: useReturns);
|
|
}
|
|
else
|
|
{
|
|
for (int opcIndex = 0; opcIndex < block.OpCodes.Count; opcIndex++)
|
|
{
|
|
OpCode opCode = block.OpCodes[opcIndex];
|
|
|
|
context.CurrOp = opCode;
|
|
|
|
bool isLastOp = opcIndex == block.OpCodes.Count - 1;
|
|
|
|
if (isLastOp && block.Branch != null && !block.Branch.Exit && block.Branch.Address <= block.Address)
|
|
{
|
|
EmitSynchronization(context);
|
|
}
|
|
|
|
Operand lblPredicateSkip = default;
|
|
|
|
if (context.IsInIfThenBlock && context.CurrentIfThenBlockCond != Condition.Al)
|
|
{
|
|
lblPredicateSkip = Label();
|
|
|
|
InstEmitFlowHelper.EmitCondBranch(context, lblPredicateSkip, context.CurrentIfThenBlockCond.Invert());
|
|
}
|
|
|
|
if (opCode is OpCode32 op && op.Cond < Condition.Al)
|
|
{
|
|
lblPredicateSkip = Label();
|
|
|
|
InstEmitFlowHelper.EmitCondBranch(context, lblPredicateSkip, op.Cond.Invert());
|
|
}
|
|
|
|
if (opCode.Instruction.Emitter != null)
|
|
{
|
|
opCode.Instruction.Emitter(context);
|
|
}
|
|
else
|
|
{
|
|
throw new InvalidOperationException($"Invalid instruction \"{opCode.Instruction.Name}\".");
|
|
}
|
|
|
|
if (lblPredicateSkip != default)
|
|
{
|
|
context.MarkLabel(lblPredicateSkip);
|
|
}
|
|
|
|
if (context.IsInIfThenBlock && opCode.Instruction.Name != InstName.It)
|
|
{
|
|
context.AdvanceIfThenBlockState();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
range = new Range(rangeStart, rangeEnd);
|
|
|
|
return context.GetControlFlowGraph();
|
|
}
|
|
|
|
internal static void EmitRejitCheck(ArmEmitterContext context, out Counter<uint> counter)
|
|
{
|
|
const int MinsCallForRejit = 100;
|
|
|
|
counter = new Counter<uint>(context.CountTable);
|
|
|
|
Operand lblEnd = Label();
|
|
|
|
Operand address = !context.HasPtc ?
|
|
Const(ref counter.Value) :
|
|
Const(ref counter.Value, Ptc.CountTableSymbol);
|
|
|
|
Operand curCount = context.Load(OperandType.I32, address);
|
|
Operand count = context.Add(curCount, Const(1));
|
|
context.Store(address, count);
|
|
context.BranchIf(lblEnd, curCount, Const(MinsCallForRejit), Comparison.NotEqual, BasicBlockFrequency.Cold);
|
|
|
|
context.Call(typeof(NativeInterface).GetMethod(nameof(NativeInterface.EnqueueForRejit)), Const(context.EntryAddress));
|
|
|
|
context.MarkLabel(lblEnd);
|
|
}
|
|
|
|
internal static void EmitSynchronization(EmitterContext context)
|
|
{
|
|
long countOffs = NativeContext.GetCounterOffset();
|
|
|
|
Operand lblNonZero = Label();
|
|
Operand lblExit = Label();
|
|
|
|
Operand countAddr = context.Add(context.LoadArgument(OperandType.I64, 0), Const(countOffs));
|
|
Operand count = context.Load(OperandType.I32, countAddr);
|
|
context.BranchIfTrue(lblNonZero, count, BasicBlockFrequency.Cold);
|
|
|
|
Operand running = context.Call(typeof(NativeInterface).GetMethod(nameof(NativeInterface.CheckSynchronization)));
|
|
context.BranchIfTrue(lblExit, running, BasicBlockFrequency.Cold);
|
|
|
|
context.Return(Const(0L));
|
|
|
|
context.MarkLabel(lblNonZero);
|
|
count = context.Subtract(count, Const(1));
|
|
context.Store(countAddr, count);
|
|
|
|
context.MarkLabel(lblExit);
|
|
}
|
|
|
|
public void InvalidateJitCacheRegion(ulong address, ulong size)
|
|
{
|
|
// If rejit is running, stop it as it may be trying to rejit a function on the invalidated region.
|
|
ClearRejitQueue(allowRequeue: true);
|
|
|
|
ulong[] overlapAddresses = Array.Empty<ulong>();
|
|
|
|
int overlapsCount = Functions.GetOverlaps(address, size, ref overlapAddresses);
|
|
|
|
for (int index = 0; index < overlapsCount; index++)
|
|
{
|
|
ulong overlapAddress = overlapAddresses[index];
|
|
|
|
if (Functions.TryGetValue(overlapAddress, out TranslatedFunction overlap))
|
|
{
|
|
Functions.Remove(overlapAddress);
|
|
Volatile.Write(ref FunctionTable.GetValue(overlapAddress), FunctionTable.Fill);
|
|
EnqueueForDeletion(overlapAddress, overlap);
|
|
}
|
|
}
|
|
|
|
// TODO: Remove overlapping functions from the JitCache aswell.
|
|
// This should be done safely, with a mechanism to ensure the function is not being executed.
|
|
}
|
|
|
|
internal void EnqueueForRejit(ulong guestAddress, ExecutionMode mode)
|
|
{
|
|
Queue.Enqueue(guestAddress, mode);
|
|
}
|
|
|
|
private void EnqueueForDeletion(ulong guestAddress, TranslatedFunction func)
|
|
{
|
|
_oldFuncs.Enqueue(new(guestAddress, func));
|
|
}
|
|
|
|
private void ClearJitCache()
|
|
{
|
|
// Ensure no attempt will be made to compile new functions due to rejit.
|
|
ClearRejitQueue(allowRequeue: false);
|
|
|
|
List<TranslatedFunction> functions = Functions.AsList();
|
|
|
|
foreach (var func in functions)
|
|
{
|
|
JitCache.Unmap(func.FuncPtr);
|
|
|
|
func.CallCounter?.Dispose();
|
|
}
|
|
|
|
Functions.Clear();
|
|
|
|
while (_oldFuncs.TryDequeue(out var kv))
|
|
{
|
|
JitCache.Unmap(kv.Value.FuncPtr);
|
|
|
|
kv.Value.CallCounter?.Dispose();
|
|
}
|
|
}
|
|
|
|
private void ClearRejitQueue(bool allowRequeue)
|
|
{
|
|
if (!allowRequeue)
|
|
{
|
|
Queue.Clear();
|
|
|
|
return;
|
|
}
|
|
|
|
lock (Queue.Sync)
|
|
{
|
|
while (Queue.Count > 0 && Queue.TryDequeue(out RejitRequest request))
|
|
{
|
|
if (Functions.TryGetValue(request.Address, out var func) && func.CallCounter != null)
|
|
{
|
|
Volatile.Write(ref func.CallCounter.Value, 0);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|