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Implement SvcWaitForAddress 0x34 (#289)

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* Implement SvcWaitForAddress 0x34

Currently needed by Sonic Mania Plus

* Fix mistake

* read-decrement-write locked
This commit is contained in:
Ac_K 2018-07-19 06:03:53 +02:00 committed by gdkchan
parent 6a69001aa2
commit 8b685b12f0
6 changed files with 171 additions and 5 deletions
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6
Ryujinx.HLE/OsHle/Handles/KThread.cs
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@ -9,10 +9,12 @@ namespace Ryujinx.HLE.OsHle.Handles
public int CoreMask { get; set; }
public long MutexAddress { get; set; }
public long CondVarAddress { get; set; }
public long MutexAddress { get; set; }
public long CondVarAddress { get; set; }
public long ArbiterWaitAddress { get; set; }
public bool CondVarSignaled { get; set; }
public bool ArbiterSignaled { get; set; }
private Process Process;

112
Ryujinx.HLE/OsHle/Kernel/AddressArbiter.cs Normal file
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@ -0,0 +1,112 @@
using ChocolArm64.Memory;
using ChocolArm64.State;
using Ryujinx.HLE.OsHle.Handles;
using static Ryujinx.HLE.OsHle.ErrorCode;
namespace Ryujinx.HLE.OsHle.Kernel
{
static class AddressArbiter
{
static ulong WaitForAddress(Process Process, AThreadState ThreadState, long Address, ulong Timeout)
{
KThread CurrentThread = Process.GetThread(ThreadState.Tpidr);
Process.Scheduler.SetReschedule(CurrentThread.ProcessorId);
CurrentThread.ArbiterWaitAddress = Address;
CurrentThread.ArbiterSignaled = false;
Process.Scheduler.EnterWait(CurrentThread, NsTimeConverter.GetTimeMs(Timeout));
if (!CurrentThread.ArbiterSignaled)
{
return MakeError(ErrorModule.Kernel, KernelErr.Timeout);
}
return 0;
}
public static ulong WaitForAddressIfLessThan(Process Process,
AThreadState ThreadState,
AMemory Memory,
long Address,
int Value,
ulong Timeout,
bool ShouldDecrement)
{
Memory.SetExclusive(ThreadState, Address);
int CurrentValue = Memory.ReadInt32(Address);
while (true)
{
if (Memory.TestExclusive(ThreadState, Address))
{
if (CurrentValue < Value)
{
if (ShouldDecrement)
{
Memory.WriteInt32(Address, CurrentValue - 1);
}
Memory.ClearExclusiveForStore(ThreadState);
}
else
{
Memory.ClearExclusiveForStore(ThreadState);
return MakeError(ErrorModule.Kernel, KernelErr.InvalidState);
}
break;
}
Memory.SetExclusive(ThreadState, Address);
CurrentValue = Memory.ReadInt32(Address);
}
if (Timeout == 0)
{
return MakeError(ErrorModule.Kernel, KernelErr.Timeout);
}
return WaitForAddress(Process, ThreadState, Address, Timeout);
}
public static ulong WaitForAddressIfEqual(Process Process,
AThreadState ThreadState,
AMemory Memory,
long Address,
int Value,
ulong Timeout)
{
if (Memory.ReadInt32(Address) != Value)
{
return MakeError(ErrorModule.Kernel, KernelErr.InvalidState);
}
if (Timeout == 0)
{
return MakeError(ErrorModule.Kernel, KernelErr.Timeout);
}
return WaitForAddress(Process, ThreadState, Address, Timeout);
}
}
enum ArbitrationType : int
{
WaitIfLessThan,
DecrementAndWaitIfLessThan,
WaitIfEqual
}
enum SignalType : int
{
Signal,
IncrementAndSignalIfEqual,
ModifyByWaitingCountAndSignalIfEqual
}
}

2
Ryujinx.HLE/OsHle/Kernel/KernelErr.cs
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@ -12,7 +12,7 @@ namespace Ryujinx.HLE.OsHle.Kernel
public const int Timeout = 117;
public const int Canceled = 118;
public const int CountOutOfRange = 119;
public const int InvalidInfo = 120;
public const int InvalidEnumValue = 120;
public const int InvalidThread = 122;
public const int InvalidState = 125;
}

3
Ryujinx.HLE/OsHle/Kernel/SvcHandler.cs
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@ -73,7 +73,8 @@ namespace Ryujinx.HLE.OsHle.Kernel
{ 0x2c, SvcMapPhysicalMemory },
{ 0x2d, SvcUnmapPhysicalMemory },
{ 0x32, SvcSetThreadActivity },
{ 0x33, SvcGetThreadContext3 }
{ 0x33, SvcGetThreadContext3 },
{ 0x34, SvcWaitForAddress }
};
this.Ns = Ns;

2
Ryujinx.HLE/OsHle/Kernel/SvcSystem.cs
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@ -294,7 +294,7 @@ namespace Ryujinx.HLE.OsHle.Kernel
InfoType == 19 ||
InfoType == 20)
{
ThreadState.X0 = MakeError(ErrorModule.Kernel, KernelErr.InvalidInfo);
ThreadState.X0 = MakeError(ErrorModule.Kernel, KernelErr.InvalidEnumValue);
return;
}

51
Ryujinx.HLE/OsHle/Kernel/SvcThreadSync.cs
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@ -197,6 +197,57 @@ namespace Ryujinx.HLE.OsHle.Kernel
Process.Scheduler.EnterWait(CurrThread);
}
private void SvcWaitForAddress(AThreadState ThreadState)
{
long Address = (long)ThreadState.X0;
ArbitrationType Type = (ArbitrationType)ThreadState.X1;
int Value = (int)ThreadState.X2;
ulong Timeout = ThreadState.X3;
Ns.Log.PrintDebug(LogClass.KernelSvc,
"Address = " + Address.ToString("x16") + ", " +
"ArbitrationType = " + Type .ToString() + ", " +
"Value = " + Value .ToString("x8") + ", " +
"Timeout = " + Timeout.ToString("x16"));
if (IsPointingInsideKernel(Address))
{
Ns.Log.PrintWarning(LogClass.KernelSvc, $"Invalid address 0x{Address:x16}!");
ThreadState.X0 = MakeError(ErrorModule.Kernel, KernelErr.InvalidAddress);
return;
}
if (IsWordAddressUnaligned(Address))
{
Ns.Log.PrintWarning(LogClass.KernelSvc, $"Unaligned address 0x{Address:x16}!");
ThreadState.X0 = MakeError(ErrorModule.Kernel, KernelErr.InvalidAlignment);
return;
}
switch (Type)
{
case ArbitrationType.WaitIfLessThan:
ThreadState.X0 = AddressArbiter.WaitForAddressIfLessThan(Process, ThreadState, Memory, Address, Value, Timeout, false);
break;
case ArbitrationType.DecrementAndWaitIfLessThan:
ThreadState.X0 = AddressArbiter.WaitForAddressIfLessThan(Process, ThreadState, Memory, Address, Value, Timeout, true);
break;
case ArbitrationType.WaitIfEqual:
ThreadState.X0 = AddressArbiter.WaitForAddressIfEqual(Process, ThreadState, Memory, Address, Value, Timeout);
break;
default:
ThreadState.X0 = MakeError(ErrorModule.Kernel, KernelErr.InvalidEnumValue);
break;
}
}
private void MutexUnlock(KThread CurrThread, long MutexAddress)
{
lock (Process.ThreadSyncLock)