9d7627af64
* Add AddressTable<T>
* Use AddressTable<T> for dispatch
* Remove JumpTable & co.
* Add fallback for out of range addresses
* Add PPTC support
* Add documentation to `AddressTable<T>`
* Make AddressTable<T> configurable
* Fix table walk
* Fix IsMapped check
* Remove CountTableCapacity
* Add PPTC support for fast path
* Rename IsMapped to IsValid
* Remove stale comment
* Change format of address in exception message
* Add TranslatorStubs
* Split DispatchStub
Avoids recompilation of stubs during tests.
* Add hint for 64bit or 32bit
* Add documentation to `Symbol`
* Add documentation to `TranslatorStubs`
Make `TranslatorStubs` disposable as well.
* Add documentation to `SymbolType`
* Add `AddressTableEventSource` to monitor function table size
Add an EventSource which measures the amount of unmanaged bytes
allocated by AddressTable<T> instances.
dotnet-counters monitor -n Ryujinx --counters ARMeilleure
* Add `AllowLcqInFunctionTable` optimization toggle
This is to reduce the impact this change has on the test duration.
Before everytime a test was ran, the FunctionTable would be initialized
and populated so that the newly compiled test would get registered to
it.
* Implement unmanaged dispatcher
Uses the DispatchStub to dispatch into the next translation, which
allows execution to stay in unmanaged for longer and skips a
ConcurrentDictionary look up when the target translation has been
registered to the FunctionTable.
* Remove redundant null check
* Tune levels of FunctionTable
Uses 5 levels instead of 4 and change unit of AddressTableEventSource
from KB to MB.
* Use 64-bit function table
Improves codegen for direct branches:
mov qword [rax+0x408],0x10603560
- mov rcx,sub_10603560_OFFSET
- mov ecx,[rcx]
- mov ecx,ecx
- mov rdx,JIT_CACHE_BASE
- add rdx,rcx
+ mov rcx,sub_10603560
+ mov rdx,[rcx]
mov rcx,rax
Improves codegen for dispatch stub:
and rax,byte +0x1f
- mov eax,[rcx+rax*4]
- mov eax,eax
- mov rcx,JIT_CACHE_BASE
- lea rax,[rcx+rax]
+ mov rax,[rcx+rax*8]
mov rcx,rbx
* Remove `JitCacheSymbol` & `JitCache.Offset`
* Turn `Translator.Translate` into an instance method
We do not have to add more parameter to this method and related ones as
new structures are added & needed for translation.
* Add symbol only when PTC is enabled
Address LDj3SNuD's feedback
* Change `NativeContext.Running` to a 32-bit integer
* Fix PageTable symbol for host mapped
555 lines
18 KiB
C#
555 lines
18 KiB
C#
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.Runtime;
|
|
using System.Threading;
|
|
|
|
using static ARMeilleure.Common.BitMapPool;
|
|
using static ARMeilleure.IntermediateRepresentation.OperandHelper;
|
|
using static ARMeilleure.IntermediateRepresentation.OperationHelper;
|
|
|
|
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;
|
|
|
|
private readonly ConcurrentDictionary<ulong, object> _backgroundSet;
|
|
private readonly ConcurrentStack<RejitRequest> _backgroundStack;
|
|
private readonly AutoResetEvent _backgroundTranslatorEvent;
|
|
private readonly ReaderWriterLock _backgroundTranslatorLock;
|
|
|
|
internal ConcurrentDictionary<ulong, TranslatedFunction> Functions { get; }
|
|
internal AddressTable<ulong> FunctionTable { get; }
|
|
internal EntryTable<uint> CountTable { get; }
|
|
internal TranslatorStubs Stubs { 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>>();
|
|
|
|
_backgroundSet = new ConcurrentDictionary<ulong, object>();
|
|
_backgroundStack = new ConcurrentStack<RejitRequest>();
|
|
_backgroundTranslatorEvent = new AutoResetEvent(false);
|
|
_backgroundTranslatorLock = new ReaderWriterLock();
|
|
|
|
JitCache.Initialize(allocator);
|
|
|
|
CountTable = new EntryTable<uint>();
|
|
Functions = new ConcurrentDictionary<ulong, TranslatedFunction>();
|
|
FunctionTable = new AddressTable<ulong>(for64Bits ? Levels64Bit : Levels32Bit);
|
|
Stubs = new TranslatorStubs(this);
|
|
|
|
FunctionTable.Fill = (ulong)Stubs.SlowDispatchStub;
|
|
|
|
if (memory.Type.IsHostMapped())
|
|
{
|
|
NativeSignalHandler.InitializeSignalHandler();
|
|
}
|
|
}
|
|
|
|
private void TranslateStackedSubs()
|
|
{
|
|
while (_threadCount != 0)
|
|
{
|
|
_backgroundTranslatorLock.AcquireReaderLock(Timeout.Infinite);
|
|
|
|
if (_backgroundStack.TryPop(out RejitRequest request) &&
|
|
_backgroundSet.TryRemove(request.Address, out _))
|
|
{
|
|
TranslatedFunction func = Translate(request.Address, request.Mode, highCq: true);
|
|
|
|
Functions.AddOrUpdate(request.Address, func, (key, oldFunc) =>
|
|
{
|
|
EnqueueForDeletion(key, oldFunc);
|
|
return func;
|
|
});
|
|
|
|
if (PtcProfiler.Enabled)
|
|
{
|
|
PtcProfiler.UpdateEntry(request.Address, request.Mode, highCq: true);
|
|
}
|
|
|
|
RegisterFunction(request.Address, func);
|
|
|
|
_backgroundTranslatorLock.ReleaseReaderLock();
|
|
}
|
|
else
|
|
{
|
|
_backgroundTranslatorLock.ReleaseReaderLock();
|
|
_backgroundTranslatorEvent.WaitOne();
|
|
}
|
|
}
|
|
|
|
// Wake up any other background translator threads, to encourage them to exit.
|
|
_backgroundTranslatorEvent.Set();
|
|
}
|
|
|
|
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(TranslateStackedSubs)
|
|
{
|
|
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)
|
|
{
|
|
_backgroundTranslatorEvent.Set();
|
|
|
|
ClearJitCache();
|
|
|
|
DisposePools();
|
|
|
|
Stubs.Dispose();
|
|
FunctionTable.Dispose();
|
|
CountTable.Dispose();
|
|
|
|
GCSettings.LargeObjectHeapCompactionMode = GCLargeObjectHeapCompactionMode.CompactOnce;
|
|
}
|
|
}
|
|
|
|
public 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;
|
|
}
|
|
|
|
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);
|
|
|
|
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)
|
|
{
|
|
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, singleBlock: false);
|
|
|
|
Logger.EndPass(PassName.Decoding);
|
|
|
|
PreparePool(highCq ? 1 : 0);
|
|
|
|
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);
|
|
|
|
Logger.StartPass(PassName.RegisterUsage);
|
|
|
|
RegisterUsage.RunPass(cfg, mode);
|
|
|
|
Logger.EndPass(PassName.RegisterUsage);
|
|
|
|
OperandType[] argTypes = new OperandType[] { OperandType.I64 };
|
|
|
|
CompilerOptions options = highCq ? CompilerOptions.HighCq : CompilerOptions.None;
|
|
|
|
GuestFunction func;
|
|
|
|
if (!context.HasPtc)
|
|
{
|
|
func = Compiler.Compile<GuestFunction>(cfg, argTypes, OperandType.I64, options);
|
|
|
|
ResetPool(highCq ? 1 : 0);
|
|
}
|
|
else
|
|
{
|
|
using PtcInfo ptcInfo = new PtcInfo();
|
|
|
|
func = Compiler.Compile<GuestFunction>(cfg, argTypes, OperandType.I64, options, ptcInfo);
|
|
|
|
ResetPool(highCq ? 1 : 0);
|
|
|
|
Hash128 hash = Ptc.ComputeHash(Memory, address, funcSize);
|
|
|
|
Ptc.WriteInfoCodeRelocUnwindInfo(address, funcSize, hash, highCq, ptcInfo);
|
|
}
|
|
|
|
return new TranslatedFunction(func, counter, funcSize, highCq);
|
|
}
|
|
|
|
internal static void PreparePool(int groupId = 0)
|
|
{
|
|
PrepareOperandPool(groupId);
|
|
PrepareOperationPool(groupId);
|
|
}
|
|
|
|
internal static void ResetPool(int groupId = 0)
|
|
{
|
|
ResetOperationPool(groupId);
|
|
ResetOperandPool(groupId);
|
|
}
|
|
|
|
internal static void DisposePools()
|
|
{
|
|
DisposeOperandPools();
|
|
DisposeOperationPools();
|
|
DisposeBitMapPools();
|
|
}
|
|
|
|
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 = null;
|
|
|
|
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 != null)
|
|
{
|
|
context.MarkLabel(lblPredicateSkip);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
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);
|
|
|
|
// TODO: Completely remove functions overlapping the specified range from the cache.
|
|
}
|
|
|
|
internal void EnqueueForRejit(ulong guestAddress, ExecutionMode mode)
|
|
{
|
|
if (_backgroundSet.TryAdd(guestAddress, null))
|
|
{
|
|
_backgroundStack.Push(new RejitRequest(guestAddress, mode));
|
|
_backgroundTranslatorEvent.Set();
|
|
}
|
|
}
|
|
|
|
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);
|
|
|
|
foreach (var func in Functions.Values)
|
|
{
|
|
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)
|
|
{
|
|
_backgroundTranslatorLock.AcquireWriterLock(Timeout.Infinite);
|
|
|
|
if (allowRequeue)
|
|
{
|
|
while (_backgroundStack.TryPop(out var request))
|
|
{
|
|
if (Functions.TryGetValue(request.Address, out var func) && func.CallCounter != null)
|
|
{
|
|
Volatile.Write(ref func.CallCounter.Value, 0);
|
|
}
|
|
|
|
_backgroundSet.TryRemove(request.Address, out _);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
_backgroundStack.Clear();
|
|
}
|
|
|
|
_backgroundTranslatorLock.ReleaseWriterLock();
|
|
}
|
|
}
|
|
}
|