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https://github.com/ryujinx-mirror/ryujinx.git
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644de99e86
* Implement GPU syncpoints This adds support for GPU syncpoints on the GPU backend & nvservices. Everything that was implemented here is based on my researches, hardware testing of the GM20B and reversing of nvservices (8.1.0). Thanks to @fincs for the informations about some behaviours of the pusher and for the initial informations about syncpoints. * syncpoint: address gdkchan's comments * Add some missing logic to handle SubmitGpfifo correctly * Handle the NV event API correctly * evnt => hostEvent * Finish addressing gdkchan's comments * nvservices: write the output buffer even when an error is returned * dma pusher: Implemnet prefetch barrier lso fix when the commands should be prefetch. * Partially fix prefetch barrier * Add a missing syncpoint check in QueryEvent of NvHostSyncPt * Address Ac_K's comments and fix GetSyncpoint for ChannelResourcePolicy == Channel * fix SyncptWait & SyncptWaitEx cmds logic * Address ripinperi's comments * Address gdkchan's comments * Move user event management to the control channel * Fix mm implementation, nvdec works again * Address ripinperi's comments * Address gdkchan's comments * Implement nvhost-ctrl close accurately + make nvservices dispose channels when stopping the emulator * Fix typo in MultiMediaOperationType
188 lines
No EOL
5 KiB
C#
188 lines
No EOL
5 KiB
C#
using Ryujinx.Common.Logging;
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using Ryujinx.Graphics.Gpu.Synchronization;
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using Ryujinx.HLE.HOS.Kernel.Threading;
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using System;
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using System.Threading;
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namespace Ryujinx.HLE.HOS.Services.Nv.NvDrvServices.NvHostCtrl
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{
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class NvHostSyncpt
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{
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private int[] _counterMin;
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private int[] _counterMax;
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private bool[] _clientManaged;
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private bool[] _assigned;
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private Switch _device;
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private object _syncpointAllocatorLock = new object();
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public NvHostSyncpt(Switch device)
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{
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_device = device;
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_counterMin = new int[SynchronizationManager.MaxHardwareSyncpoints];
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_counterMax = new int[SynchronizationManager.MaxHardwareSyncpoints];
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_clientManaged = new bool[SynchronizationManager.MaxHardwareSyncpoints];
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_assigned = new bool[SynchronizationManager.MaxHardwareSyncpoints];
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}
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private void ReserveSyncpointLocked(uint id, bool isClientManaged)
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{
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if (id >= SynchronizationManager.MaxHardwareSyncpoints || _assigned[id])
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{
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throw new ArgumentOutOfRangeException(nameof(id));
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}
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_assigned[id] = true;
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_clientManaged[id] = isClientManaged;
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}
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public uint AllocateSyncpoint(bool isClientManaged)
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{
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lock (_syncpointAllocatorLock)
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{
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for (uint i = 1; i < SynchronizationManager.MaxHardwareSyncpoints; i++)
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{
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if (!_assigned[i])
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{
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ReserveSyncpointLocked(i, isClientManaged);
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return i;
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}
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}
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}
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Logger.PrintError(LogClass.ServiceNv, "Cannot allocate a new syncpoint!");
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return 0;
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}
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public void ReleaseSyncpoint(uint id)
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{
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if (id == 0)
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{
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return;
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}
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lock (_syncpointAllocatorLock)
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{
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if (id >= SynchronizationManager.MaxHardwareSyncpoints || !_assigned[id])
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{
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throw new ArgumentOutOfRangeException(nameof(id));
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}
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_assigned[id] = false;
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_clientManaged[id] = false;
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SetSyncpointMinEqualSyncpointMax(id);
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}
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}
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public void SetSyncpointMinEqualSyncpointMax(uint id)
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{
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if (id >= SynchronizationManager.MaxHardwareSyncpoints)
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{
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throw new ArgumentOutOfRangeException(nameof(id));
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}
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int value = (int)ReadSyncpointValue(id);
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Interlocked.Exchange(ref _counterMax[id], value);
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}
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public uint ReadSyncpointValue(uint id)
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{
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return UpdateMin(id);
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}
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public uint ReadSyncpointMinValue(uint id)
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{
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return (uint)_counterMin[id];
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}
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public uint ReadSyncpointMaxValue(uint id)
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{
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return (uint)_counterMax[id];
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}
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private bool IsClientManaged(uint id)
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{
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if (id >= SynchronizationManager.MaxHardwareSyncpoints)
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{
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return false;
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}
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return _clientManaged[id];
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}
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public void Increment(uint id)
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{
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if (IsClientManaged(id))
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{
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IncrementSyncpointMax(id);
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}
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IncrementSyncpointGPU(id);
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}
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public uint UpdateMin(uint id)
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{
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uint newValue = _device.Gpu.Synchronization.GetSyncpointValue(id);
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Interlocked.Exchange(ref _counterMin[id], (int)newValue);
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return newValue;
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}
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private void IncrementSyncpointGPU(uint id)
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{
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_device.Gpu.Synchronization.IncrementSyncpoint(id);
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}
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public void IncrementSyncpointMin(uint id)
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{
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Interlocked.Increment(ref _counterMin[id]);
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}
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public uint IncrementSyncpointMaxExt(uint id, int count)
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{
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if (count == 0)
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{
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return ReadSyncpointMaxValue(id);
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}
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uint result = 0;
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for (int i = 0; i < count; i++)
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{
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result = IncrementSyncpointMax(id);
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}
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return result;
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}
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private uint IncrementSyncpointMax(uint id)
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{
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return (uint)Interlocked.Increment(ref _counterMax[id]);
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}
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public bool IsSyncpointExpired(uint id, uint threshold)
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{
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return MinCompare(id, _counterMin[id], _counterMax[id], (int)threshold);
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}
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private bool MinCompare(uint id, int min, int max, int threshold)
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{
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int minDiff = min - threshold;
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int maxDiff = max - threshold;
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if (IsClientManaged(id))
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{
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return minDiff >= 0;
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}
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else
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{
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return (uint)maxDiff >= (uint)minDiff;
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}
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}
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}
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} |