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nvservices: mitigate abort with heavy load on the GPU processing thread (#1173)

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* nvservices: mitigate abort with heavy load on the GPU processing thread.

This should fix Mario Tennis and LM3 regressions with syncpoints.

NOTE: Mario Tennis seems to have another issue related to the texture
cache that happens randomly when starting a match.

PS: Also add a debug logger for all known ioctl call to facilitate
debugging and add a missing UpdateMin in EventSignal.

* Address LDj3SNuD's comment

* Address gdkchan's comment
This commit is contained in:
Thog 2020-05-01 23:18:42 +02:00 committed by GitHub
parent 71dbb38b9a
commit 81cba3c3df
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GPG key ID: 4AEE18F83AFDEB23
3 changed files with 90 additions and 16 deletions
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19
Ryujinx.HLE/HOS/Services/Nv/NvDrvServices/NvDeviceFile.cs
View file

@ -1,7 +1,9 @@
using Ryujinx.HLE.HOS.Kernel.Memory;
using Ryujinx.Common.Logging;
using Ryujinx.HLE.HOS.Kernel.Memory;
using Ryujinx.HLE.HOS.Kernel.Process;
using System;
using System.Diagnostics;
using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
@ -50,11 +52,18 @@ namespace Ryujinx.HLE.HOS.Services.Nv.NvDrvServices
protected delegate NvInternalResult IoctlProcessorInline<T, T1>(ref T arguments, ref T1 inlineData);
protected delegate NvInternalResult IoctlProcessorInlineSpan<T, T1>(ref T arguments, Span<T1> inlineData);
private static NvInternalResult PrintResult(MethodInfo info, NvInternalResult result)
{
Logger.PrintDebug(LogClass.ServiceNv, $"{info.Name} returned result {result}");
return result;
}
protected static NvInternalResult CallIoctlMethod<T>(IoctlProcessor<T> callback, Span<byte> arguments) where T : struct
{
Debug.Assert(arguments.Length == Unsafe.SizeOf<T>());
return callback(ref MemoryMarshal.Cast<byte, T>(arguments)[0]);
return PrintResult(callback.Method, callback(ref MemoryMarshal.Cast<byte, T>(arguments)[0]));
}
protected static NvInternalResult CallIoctlMethod<T, T1>(IoctlProcessorInline<T, T1> callback, Span<byte> arguments, Span<byte> inlineBuffer) where T : struct where T1 : struct
@ -62,19 +71,19 @@ namespace Ryujinx.HLE.HOS.Services.Nv.NvDrvServices
Debug.Assert(arguments.Length == Unsafe.SizeOf<T>());
Debug.Assert(inlineBuffer.Length == Unsafe.SizeOf<T1>());
return callback(ref MemoryMarshal.Cast<byte, T>(arguments)[0], ref MemoryMarshal.Cast<byte, T1>(inlineBuffer)[0]);
return PrintResult(callback.Method, callback(ref MemoryMarshal.Cast<byte, T>(arguments)[0], ref MemoryMarshal.Cast<byte, T1>(inlineBuffer)[0]));
}
protected static NvInternalResult CallIoctlMethod<T>(IoctlProcessorSpan<T> callback, Span<byte> arguments) where T : struct
{
return callback(MemoryMarshal.Cast<byte, T>(arguments));
return PrintResult(callback.Method, callback(MemoryMarshal.Cast<byte, T>(arguments)));
}
protected static NvInternalResult CallIoctlMethod<T, T1>(IoctlProcessorInlineSpan<T, T1> callback, Span<byte> arguments, Span<byte> inlineBuffer) where T : struct where T1 : struct
{
Debug.Assert(arguments.Length == Unsafe.SizeOf<T>());
return callback(ref MemoryMarshal.Cast<byte, T>(arguments)[0], MemoryMarshal.Cast<byte, T1>(inlineBuffer));
return PrintResult(callback.Method, callback(ref MemoryMarshal.Cast<byte, T>(arguments)[0], MemoryMarshal.Cast<byte, T1>(inlineBuffer)));
}
public abstract void Close();

27
Ryujinx.HLE/HOS/Services/Nv/NvDrvServices/NvHostCtrl/NvHostCtrlDeviceFile.cs
View file

@ -310,6 +310,8 @@ namespace Ryujinx.HLE.HOS.Services.Nv.NvDrvServices.NvHostCtrl
hostEvent.State = NvHostEventState.Cancelled;
_device.System.HostSyncpoint.UpdateMin(hostEvent.Fence.Id);
return NvInternalResult.Success;
}
@ -398,20 +400,29 @@ namespace Ryujinx.HLE.HOS.Services.Nv.NvDrvServices.NvHostCtrl
hostEvent.State == NvHostEventState.Signaled ||
hostEvent.State == NvHostEventState.Cancelled))
{
hostEvent.Wait(_device.Gpu, fence);
bool timedOut = hostEvent.Wait(_device.Gpu, fence);
if (isWaitEventCmd)
if (timedOut)
{
value = ((fence.Id & 0xfff) << 16) | 0x10000000;
if (isWaitEventCmd)
{
value = ((fence.Id & 0xfff) << 16) | 0x10000000;
}
else
{
value = fence.Id << 4;
}
value |= eventIndex;
result = NvInternalResult.TryAgain;
}
else
{
value = fence.Id << 4;
value = fence.Value;
return NvInternalResult.Success;
}
value |= eventIndex;
result = NvInternalResult.TryAgain;
}
else
{

60
Ryujinx.HLE/HOS/Services/Nv/NvDrvServices/NvHostCtrl/Types/NvHostEvent.cs
View file

@ -1,8 +1,10 @@
using Ryujinx.Common.Logging;
using Ryujinx.Graphics.Gpu;
using Ryujinx.Graphics.Gpu.Synchronization;
using Ryujinx.HLE.HOS.Kernel.Threading;
using Ryujinx.HLE.HOS.Services.Nv.Types;
using System;
using System.Threading;
namespace Ryujinx.HLE.HOS.Services.Nv.NvDrvServices.NvHostCtrl
{
@ -16,6 +18,15 @@ namespace Ryujinx.HLE.HOS.Services.Nv.NvDrvServices.NvHostCtrl
private NvHostSyncpt _syncpointManager;
private SyncpointWaiterHandle _waiterInformation;
private NvFence _previousFailingFence;
private uint _failingCount;
/// <summary>
/// Max failing count until waiting on CPU.
/// FIXME: This seems enough for most of the cases, reduce if needed.
/// </summary>
private const uint FailingCountMax = 2;
public NvHostEvent(NvHostSyncpt syncpointManager, uint eventId, Horizon system)
{
Fence.Id = 0;
@ -27,11 +38,20 @@ namespace Ryujinx.HLE.HOS.Services.Nv.NvDrvServices.NvHostCtrl
_eventId = eventId;
_syncpointManager = syncpointManager;
ResetFailingState();
}
private void ResetFailingState()
{
_previousFailingFence.Id = NvFence.InvalidSyncPointId;
_previousFailingFence.Value = 0;
_failingCount = 0;
}
public void Reset()
{
Fence.Id = NvFence.InvalidSyncPointId;
Fence.Id = 0;
Fence.Value = 0;
State = NvHostEventState.Available;
}
@ -52,6 +72,8 @@ namespace Ryujinx.HLE.HOS.Services.Nv.NvDrvServices.NvHostCtrl
private void GpuSignaled()
{
ResetFailingState();
Signal();
}
@ -61,18 +83,50 @@ namespace Ryujinx.HLE.HOS.Services.Nv.NvDrvServices.NvHostCtrl
{
gpuContext.Synchronization.UnregisterCallback(Fence.Id, _waiterInformation);
if (_previousFailingFence.Id == Fence.Id && _previousFailingFence.Value == Fence.Value)
{
_failingCount++;
}
else
{
_failingCount = 1;
_previousFailingFence = Fence;
}
Signal();
}
Event.WritableEvent.Clear();
}
public void Wait(GpuContext gpuContext, NvFence fence)
public bool Wait(GpuContext gpuContext, NvFence fence)
{
Fence = fence;
State = NvHostEventState.Waiting;
_waiterInformation = gpuContext.Synchronization.RegisterCallbackOnSyncpoint(Fence.Id, Fence.Value, GpuSignaled);
// NOTE: nvservices code should always wait on the GPU side.
// If we do this, we may get an abort or undefined behaviour when the GPU processing thread is blocked for a long period (for example, during shader compilation).
// The reason for this is that the NVN code will try to wait until giving up.
// This is done by trying to wait and signal multiple times until aborting after you are past the timeout.
// As such, if it fails too many time, we enforce a wait on the CPU side indefinitely.
// This allows to keep GPU and CPU in sync when we are slow.
if (_failingCount == FailingCountMax)
{
Logger.PrintWarning(LogClass.ServiceNv, "GPU processing thread is too slow, waiting on CPU...");
bool timedOut = Fence.Wait(gpuContext, Timeout.InfiniteTimeSpan);
GpuSignaled();
return timedOut;
}
else
{
_waiterInformation = gpuContext.Synchronization.RegisterCallbackOnSyncpoint(Fence.Id, Fence.Value, GpuSignaled);
return true;
}
}
public string DumpState(GpuContext gpuContext)