Mirrors/Ryujinx
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Implement GPU syncpoints (#980)

Browse source 
* 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
This commit is contained in:
Thog 2020-04-19 03:25:57 +02:00 • committed by GitHub
parent 4960ab85f8
commit 644de99e86
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
37 changed files with 1576 additions and 386 deletions
Download patch file Download diff file Expand all files Collapse all files

164
Ryujinx.Graphics.Gpu/DmaPusher.cs
View file

@ -1,4 +1,6 @@
using System;
using System.Collections.Concurrent;
using System.Runtime.InteropServices;
using System.Threading;
namespace Ryujinx.Graphics.Gpu
@ -8,10 +10,61 @@ namespace Ryujinx.Graphics.Gpu
/// </summary>
public class DmaPusher
{
private ConcurrentQueue<ulong> _ibBuffer;
private ConcurrentQueue<CommandBuffer> _commandBufferQueue;
private ulong _dmaPut;
private ulong _dmaGet;
private enum CommandBufferType
{
Prefetch,
NoPrefetch,
}
private struct CommandBuffer
{
/// <summary>
/// The type of the command buffer.
/// </summary>
public CommandBufferType Type;
/// <summary>
/// Fetched data.
/// </summary>
public int[] Words;
/// <summary>
/// The GPFIFO entry address. (used in NoPrefetch mode)
/// </summary>
public ulong EntryAddress;
/// <summary>
/// The count of entries inside this GPFIFO entry.
/// </summary>
public uint EntryCount;
/// <summary>
/// Fetch the command buffer.
/// </summary>
public void Fetch(GpuContext context)
{
if (Words == null)
{
Words = MemoryMarshal.Cast<byte, int>(context.MemoryAccessor.GetSpan(EntryAddress, EntryCount * 4)).ToArray();
}
}
/// <summary>
/// Read inside the command buffer.
/// </summary>
/// <param name="context">The GPU context</param>
/// <param name="index">The index inside the command buffer</param>
/// <returns>The value read</returns>
public int ReadAt(GpuContext context, int index)
{
return Words[index];
}
}
private CommandBuffer _currentCommandBuffer;
private int _wordsPosition;
/// <summary>
/// Internal GPFIFO state.
@ -32,9 +85,6 @@ namespace Ryujinx.Graphics.Gpu
private bool _sliActive;
private bool _ibEnable;
private bool _nonMain;
private ulong _dmaMGet;
private GpuContext _context;
@ -48,24 +98,91 @@ namespace Ryujinx.Graphics.Gpu
{
_context = context;
_ibBuffer = new ConcurrentQueue<ulong>();
_ibEnable = true;
_commandBufferQueue = new ConcurrentQueue<CommandBuffer>();
_event = new AutoResetEvent(false);
}
/// <summary>
/// Pushes a GPFIFO entry.
/// Signal the pusher that there are new entries to process.
/// </summary>
/// <param name="entry">GPFIFO entry</param>
public void Push(ulong entry)
public void SignalNewEntries()
{
_ibBuffer.Enqueue(entry);
_event.Set();
}
/// <summary>
/// Push a GPFIFO entry in the form of a prefetched command buffer.
/// It is intended to be used by nvservices to handle special cases.
/// </summary>
/// <param name="commandBuffer">The command buffer containing the prefetched commands</param>
public void PushHostCommandBuffer(int[] commandBuffer)
{
_commandBufferQueue.Enqueue(new CommandBuffer
{
Type = CommandBufferType.Prefetch,
Words = commandBuffer,
EntryAddress = ulong.MaxValue,
EntryCount = (uint)commandBuffer.Length
});
}
/// <summary>
/// Create a CommandBuffer from a GPFIFO entry.
/// </summary>
/// <param name="entry">The GPFIFO entry</param>
/// <returns>A new CommandBuffer based on the GPFIFO entry</returns>
private CommandBuffer CreateCommandBuffer(ulong entry)
{
ulong length = (entry >> 42) & 0x1fffff;
ulong startAddress = entry & 0xfffffffffc;
bool noPrefetch = (entry & (1UL << 63)) != 0;
CommandBufferType type = CommandBufferType.Prefetch;
if (noPrefetch)
{
type = CommandBufferType.NoPrefetch;
}
return new CommandBuffer
{
Type = type,
Words = null,
EntryAddress = startAddress,
EntryCount = (uint)length
};
}
/// <summary>
/// Pushes GPFIFO entries.
/// </summary>
/// <param name="entries">GPFIFO entries</param>
public void PushEntries(ReadOnlySpan<ulong> entries)
{
bool beforeBarrier = true;
foreach (ulong entry in entries)
{
CommandBuffer commandBuffer = CreateCommandBuffer(entry);
if (beforeBarrier && commandBuffer.Type == CommandBufferType.Prefetch)
{
commandBuffer.Fetch(_context);
}
if (commandBuffer.Type == CommandBufferType.NoPrefetch)
{
beforeBarrier = false;
}
_commandBufferQueue.Enqueue(commandBuffer);
}
}
/// <summary>
/// Waits until commands are pushed to the FIFO.
/// </summary>
@ -89,16 +206,9 @@ namespace Ryujinx.Graphics.Gpu
/// <returns>True if the FIFO still has commands to be processed, false otherwise</returns>
private bool Step()
{
if (_dmaGet != _dmaPut)
if (_wordsPosition != _currentCommandBuffer.EntryCount)
{
int word = _context.MemoryAccessor.ReadInt32(_dmaGet);
_dmaGet += 4;
if (!_nonMain)
{
_dmaMGet = _dmaGet;
}
int word = _currentCommandBuffer.ReadAt(_context, _wordsPosition++);
if (_state.LengthPending != 0)
{
@ -170,14 +280,12 @@ namespace Ryujinx.Graphics.Gpu
}
}
}
else if (_ibEnable && _ibBuffer.TryDequeue(out ulong entry))
else if (_ibEnable && _commandBufferQueue.TryDequeue(out CommandBuffer entry))
{
ulong length = (entry >> 42) & 0x1fffff;
_currentCommandBuffer = entry;
_wordsPosition = 0;
_dmaGet = entry & 0xfffffffffc;
_dmaPut = _dmaGet + length * 4;
_nonMain = (entry & (1UL << 41)) != 0;
_currentCommandBuffer.Fetch(_context);
}
else
{