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Ryujinx/Ryujinx.HLE/HOS/Services/Nv/NvDrvServices/NvHostCtrl/NvHostCtrlDeviceFile.cs

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using Ryujinx.Common.Logging;
using Ryujinx.HLE.HOS.Kernel.Common;
using Ryujinx.HLE.HOS.Kernel.Threading;
using Ryujinx.HLE.HOS.Services.Nv.NvDrvServices.NvHostCtrl.Types;
using Ryujinx.HLE.HOS.Services.Nv.Types;
using Ryujinx.HLE.HOS.Services.Settings;
using System;
using System.Text;
using System.Threading;
namespace Ryujinx.HLE.HOS.Services.Nv.NvDrvServices.NvHostCtrl
{
internal class NvHostCtrlDeviceFile : NvDeviceFile
{
private const int EventsCount = 64;
private bool _isProductionMode;
private NvHostSyncpt _syncpt;
private NvHostEvent[] _events;
private KEvent _dummyEvent;
public NvHostCtrlDeviceFile(ServiceCtx context) : base(context)
{
if (NxSettings.Settings.TryGetValue("nv!rmos_set_production_mode", out object productionModeSetting))
{
_isProductionMode = ((string)productionModeSetting) != "0"; // Default value is ""
}
else
{
_isProductionMode = true;
}
_syncpt = new NvHostSyncpt();
_events = new NvHostEvent[EventsCount];
_dummyEvent = new KEvent(context.Device.System);
}
public override NvInternalResult Ioctl(NvIoctl command, Span<byte> arguments)
{
NvInternalResult result = NvInternalResult.NotImplemented;
if (command.Type == NvIoctl.NvHostCustomMagic)
{
switch (command.Number)
{
case 0x14:
result = CallIoctlMethod<NvFence>(SyncptRead, arguments);
break;
case 0x15:
result = CallIoctlMethod<uint>(SyncptIncr, arguments);
break;
case 0x16:
result = CallIoctlMethod<SyncptWaitArguments>(SyncptWait, arguments);
break;
case 0x19:
result = CallIoctlMethod<SyncptWaitExArguments>(SyncptWaitEx, arguments);
break;
case 0x1a:
result = CallIoctlMethod<NvFence>(SyncptReadMax, arguments);
break;
case 0x1b:
// As Marshal cannot handle unaligned arrays, we do everything by hand here.
GetConfigurationArguments configArgument = GetConfigurationArguments.FromSpan(arguments);
result = GetConfig(configArgument);
if (result == NvInternalResult.Success)
{
configArgument.CopyTo(arguments);
}
break;
case 0x1d:
result = CallIoctlMethod<EventWaitArguments>(EventWait, arguments);
break;
case 0x1e:
result = CallIoctlMethod<EventWaitArguments>(EventWaitAsync, arguments);
break;
case 0x1f:
result = CallIoctlMethod<uint>(EventRegister, arguments);
break;
}
}
return result;
}
public override NvInternalResult QueryEvent(out int eventHandle, uint eventId)
{
// TODO: implement SyncPts <=> KEvent logic accurately. For now we return a dummy event.
KEvent targetEvent = _dummyEvent;
if (targetEvent != null)
{
if (Owner.HandleTable.GenerateHandle(targetEvent.ReadableEvent, out eventHandle) != KernelResult.Success)
{
throw new InvalidOperationException("Out of handles!");
}
}
else
{
eventHandle = 0;
return NvInternalResult.InvalidInput;
}
return NvInternalResult.Success;
}
private NvInternalResult SyncptRead(ref NvFence arguments)
{
return SyncptReadMinOrMax(ref arguments, max: false);
}
private NvInternalResult SyncptIncr(ref uint id)
{
if (id >= NvHostSyncpt.SyncptsCount)
{
return NvInternalResult.InvalidInput;
}
_syncpt.Increment((int)id);
return NvInternalResult.Success;
}
private NvInternalResult SyncptWait(ref SyncptWaitArguments arguments)
{
return SyncptWait(ref arguments, out _);
}
private NvInternalResult SyncptWaitEx(ref SyncptWaitExArguments arguments)
{
return SyncptWait(ref arguments.Input, out arguments.Value);
}
private NvInternalResult SyncptReadMax(ref NvFence arguments)
{
return SyncptReadMinOrMax(ref arguments, max: true);
}
private NvInternalResult GetConfig(GetConfigurationArguments arguments)
{
if (!_isProductionMode && NxSettings.Settings.TryGetValue($"{arguments.Domain}!{arguments.Parameter}".ToLower(), out object nvSetting))
{
byte[] settingBuffer = new byte[0x101];
if (nvSetting is string stringValue)
{
if (stringValue.Length > 0x100)
{
Logger.PrintError(LogClass.ServiceNv, $"{arguments.Domain}!{arguments.Parameter} String value size is too big!");
}
else
{
settingBuffer = Encoding.ASCII.GetBytes(stringValue + "\0");
}
}
else if (nvSetting is int intValue)
{
settingBuffer = BitConverter.GetBytes(intValue);
}
else if (nvSetting is bool boolValue)
{
settingBuffer[0] = boolValue ? (byte)1 : (byte)0;
}
else
{
throw new NotImplementedException(nvSetting.GetType().Name);
}
Logger.PrintDebug(LogClass.ServiceNv, $"Got setting {arguments.Domain}!{arguments.Parameter}");
arguments.Configuration = settingBuffer;
return NvInternalResult.Success;
}
// NOTE: This actually return NotAvailableInProduction but this is directly translated as a InvalidInput before returning the ioctl.
//return NvInternalResult.NotAvailableInProduction;
return NvInternalResult.InvalidInput;
}
private NvInternalResult EventWait(ref EventWaitArguments arguments)
{
return EventWait(ref arguments, async: false);
}
private NvInternalResult EventWaitAsync(ref EventWaitArguments arguments)
{
return EventWait(ref arguments, async: true);
}
private NvInternalResult EventRegister(ref uint userEventId)
{
Logger.PrintStub(LogClass.ServiceNv);
return NvInternalResult.Success;
}
private NvInternalResult SyncptReadMinOrMax(ref NvFence arguments, bool max)
{
if (arguments.Id >= NvHostSyncpt.SyncptsCount)
{
return NvInternalResult.InvalidInput;
}
if (max)
{
arguments.Value = (uint)_syncpt.GetMax((int)arguments.Id);
}
else
{
arguments.Value = (uint)_syncpt.GetMin((int)arguments.Id);
}
return NvInternalResult.Success;
}
private NvInternalResult SyncptWait(ref SyncptWaitArguments arguments, out int value)
{
if (arguments.Id >= NvHostSyncpt.SyncptsCount)
{
value = 0;
return NvInternalResult.InvalidInput;
}
NvInternalResult result;
if (_syncpt.MinCompare((int)arguments.Id, arguments.Thresh))
{
result = NvInternalResult.Success;
}
else if (arguments.Timeout == 0)
{
result = NvInternalResult.TryAgain;
}
else
{
Logger.PrintDebug(LogClass.ServiceNv, $"Waiting syncpt with timeout of {arguments.Timeout}ms...");
using (ManualResetEvent waitEvent = new ManualResetEvent(false))
{
_syncpt.AddWaiter(arguments.Thresh, waitEvent);
// Note: Negative (> INT_MAX) timeouts aren't valid on .NET,
// in this case we just use the maximum timeout possible.
int timeout = arguments.Timeout;
if (timeout < -1)
{
timeout = int.MaxValue;
}
if (timeout == -1)
{
waitEvent.WaitOne();
result = NvInternalResult.Success;
}
else if (waitEvent.WaitOne(timeout))
{
result = NvInternalResult.Success;
}
else
{
result = NvInternalResult.TimedOut;
}
}
Logger.PrintDebug(LogClass.ServiceNv, "Resuming...");
}
value = _syncpt.GetMin((int)arguments.Id);
return result;
}
private NvInternalResult EventWait(ref EventWaitArguments arguments, bool async)
{
if (arguments.Id >= NvHostSyncpt.SyncptsCount)
{
return NvInternalResult.InvalidInput;
}
if (_syncpt.MinCompare(arguments.Id, arguments.Thresh))
{
arguments.Value = _syncpt.GetMin(arguments.Id);
return NvInternalResult.Success;
}
if (!async)
{
arguments.Value = 0;
}
if (arguments.Timeout == 0)
{
return NvInternalResult.TryAgain;
}
NvHostEvent Event;
NvInternalResult result;
int eventIndex;
if (async)
{
eventIndex = arguments.Value;
if ((uint)eventIndex >= EventsCount)
{
return NvInternalResult.InvalidInput;
}
Event = _events[eventIndex];
}
else
{
Event = GetFreeEvent(arguments.Id, out eventIndex);
}
if (Event != null &&
(Event.State == NvHostEventState.Registered ||
Event.State == NvHostEventState.Free))
{
Event.Id = arguments.Id;
Event.Thresh = arguments.Thresh;
Event.State = NvHostEventState.Waiting;
if (!async)
{
arguments.Value = ((arguments.Id & 0xfff) << 16) | 0x10000000;
}
else
{
arguments.Value = arguments.Id << 4;
}
arguments.Value |= eventIndex;
result = NvInternalResult.TryAgain;
}
else
{
result = NvInternalResult.InvalidInput;
}
return result;
}
private NvHostEvent GetFreeEvent(int id, out int eventIndex)
{
eventIndex = EventsCount;
int nullIndex = EventsCount;
for (int index = 0; index < EventsCount; index++)
{
NvHostEvent Event = _events[index];
if (Event != null)
{
if (Event.State == NvHostEventState.Registered ||
Event.State == NvHostEventState.Free)
{
eventIndex = index;
if (Event.Id == id)
{
return Event;
}
}
}
else if (nullIndex == EventsCount)
{
nullIndex = index;
}
}
if (nullIndex < EventsCount)
{
eventIndex = nullIndex;
return _events[nullIndex] = new NvHostEvent();
}
if (eventIndex < EventsCount)
{
return _events[eventIndex];
}
return null;
}
public override void Close() { }
}
}