From 8b685b12f0b7a901139999dff17b24b049b9084b Mon Sep 17 00:00:00 2001 From: Ac_K Date: Thu, 19 Jul 2018 06:03:53 +0200 Subject: [PATCH] Implement SvcWaitForAddress 0x34 (#289) * Implement SvcWaitForAddress 0x34 Currently needed by Sonic Mania Plus * Fix mistake * read-decrement-write locked --- Ryujinx.HLE/OsHle/Handles/KThread.cs | 6 +- Ryujinx.HLE/OsHle/Kernel/AddressArbiter.cs | 112 +++++++++++++++++++++ Ryujinx.HLE/OsHle/Kernel/KernelErr.cs | 2 +- Ryujinx.HLE/OsHle/Kernel/SvcHandler.cs | 3 +- Ryujinx.HLE/OsHle/Kernel/SvcSystem.cs | 2 +- Ryujinx.HLE/OsHle/Kernel/SvcThreadSync.cs | 51 ++++++++++ 6 files changed, 171 insertions(+), 5 deletions(-) create mode 100644 Ryujinx.HLE/OsHle/Kernel/AddressArbiter.cs diff --git a/Ryujinx.HLE/OsHle/Handles/KThread.cs b/Ryujinx.HLE/OsHle/Handles/KThread.cs index 3db46f3d6..2b980d17b 100644 --- a/Ryujinx.HLE/OsHle/Handles/KThread.cs +++ b/Ryujinx.HLE/OsHle/Handles/KThread.cs @@ -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; diff --git a/Ryujinx.HLE/OsHle/Kernel/AddressArbiter.cs b/Ryujinx.HLE/OsHle/Kernel/AddressArbiter.cs new file mode 100644 index 000000000..ce9ef0cd8 --- /dev/null +++ b/Ryujinx.HLE/OsHle/Kernel/AddressArbiter.cs @@ -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 + } +} diff --git a/Ryujinx.HLE/OsHle/Kernel/KernelErr.cs b/Ryujinx.HLE/OsHle/Kernel/KernelErr.cs index ad4fdfb6b..bbae53255 100644 --- a/Ryujinx.HLE/OsHle/Kernel/KernelErr.cs +++ b/Ryujinx.HLE/OsHle/Kernel/KernelErr.cs @@ -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; } diff --git a/Ryujinx.HLE/OsHle/Kernel/SvcHandler.cs b/Ryujinx.HLE/OsHle/Kernel/SvcHandler.cs index e05073fda..e816c44ec 100644 --- a/Ryujinx.HLE/OsHle/Kernel/SvcHandler.cs +++ b/Ryujinx.HLE/OsHle/Kernel/SvcHandler.cs @@ -73,7 +73,8 @@ namespace Ryujinx.HLE.OsHle.Kernel { 0x2c, SvcMapPhysicalMemory }, { 0x2d, SvcUnmapPhysicalMemory }, { 0x32, SvcSetThreadActivity }, - { 0x33, SvcGetThreadContext3 } + { 0x33, SvcGetThreadContext3 }, + { 0x34, SvcWaitForAddress } }; this.Ns = Ns; diff --git a/Ryujinx.HLE/OsHle/Kernel/SvcSystem.cs b/Ryujinx.HLE/OsHle/Kernel/SvcSystem.cs index a32b2d86f..08305522f 100644 --- a/Ryujinx.HLE/OsHle/Kernel/SvcSystem.cs +++ b/Ryujinx.HLE/OsHle/Kernel/SvcSystem.cs @@ -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; } diff --git a/Ryujinx.HLE/OsHle/Kernel/SvcThreadSync.cs b/Ryujinx.HLE/OsHle/Kernel/SvcThreadSync.cs index ec9c40e08..9fc426176 100644 --- a/Ryujinx.HLE/OsHle/Kernel/SvcThreadSync.cs +++ b/Ryujinx.HLE/OsHle/Kernel/SvcThreadSync.cs @@ -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)