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Implement a fast path for I2M transfers (#2467)

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gdkchan 2021-07-12 16:48:57 -03:00 committed by GitHub
parent 9b08abc644
commit 04dce402ac
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4 changed files with 88 additions and 3 deletions
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9
Ryujinx.Graphics.Gpu/Engine/Compute/ComputeClass.cs
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@ -68,6 +68,15 @@ namespace Ryujinx.Graphics.Gpu.Engine.Compute
_i2mClass.LaunchDma(ref Unsafe.As<ComputeClassState, InlineToMemoryClassState>(ref _state.State), argument);
}
/// <summary>
/// Pushes a block of data to the Inline-to-Memory engine.
/// </summary>
/// <param name="data">Data to push</param>
public void LoadInlineData(ReadOnlySpan<int> data)
{
_i2mClass.LoadInlineData(data);
}
/// <summary>
/// Pushes a word of data to the Inline-to-Memory engine.
/// </summary>

53
Ryujinx.Graphics.Gpu/Engine/GPFifo/GPFifoProcessor.cs
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@ -18,6 +18,7 @@ namespace Ryujinx.Graphics.Gpu.Engine.GPFifo
private const int MacrosCount = 0x80;
private const int MacroIndexMask = MacrosCount - 1;
private const int LoadInlineDataMethodOffset = 0x6d;
private const int UniformBufferUpdateDataMethodOffset = 0x8e4;
private readonly GpuChannel _channel;
@ -78,6 +79,11 @@ namespace Ryujinx.Graphics.Gpu.Engine.GPFifo
if (_state.MethodCount != 0)
{
if (TryFastI2mBufferUpdate(commandBuffer, ref index))
{
continue;
}
Send(_state.Method, command, _state.SubChannel, _state.MethodCount <= 1);
if (!_state.NonIncrementing)
@ -123,6 +129,46 @@ namespace Ryujinx.Graphics.Gpu.Engine.GPFifo
_3dClass.FlushUboDirty();
}
/// <summary>
/// Tries to perform a fast Inline-to-Memory data update.
/// If successful, all data will be copied at once, and <see cref="DmaState.MethodCount"/>
/// command buffer entries will be consumed.
/// </summary>
/// <param name="commandBuffer">Command buffer where the data is contained</param>
/// <param name="offset">Offset at <paramref name="commandBuffer"/> where the data is located, auto-incremented on success</param>
/// <returns>True if the fast copy was successful, false otherwise</returns>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private bool TryFastI2mBufferUpdate(ReadOnlySpan<int> commandBuffer, ref int offset)
{
if (_state.Method == LoadInlineDataMethodOffset && _state.NonIncrementing && _state.SubChannel <= 2)
{
int availableCount = commandBuffer.Length - offset;
int consumeCount = Math.Min(_state.MethodCount, availableCount);
var data = commandBuffer.Slice(offset, consumeCount);
if (_state.SubChannel == 0)
{
_3dClass.LoadInlineData(data);
}
else if (_state.SubChannel == 1)
{
_computeClass.LoadInlineData(data);
}
else /* if (_state.SubChannel == 2) */
{
_i2mClass.LoadInlineData(data);
}
offset += consumeCount - 1;
_state.MethodCount -= consumeCount;
return true;
}
return false;
}
/// <summary>
/// Tries to perform a fast constant buffer data update.
/// If successful, all data will be copied at once, and <see cref="CompressedMethod.MethodCount"/> + 1
@ -132,13 +178,14 @@ namespace Ryujinx.Graphics.Gpu.Engine.GPFifo
/// <param name="commandBuffer">Command buffer where <paramref name="meth"/> is contained</param>
/// <param name="offset">Offset at <paramref name="commandBuffer"/> where <paramref name="meth"/> is located</param>
/// <returns>True if the fast copy was successful, false otherwise</returns>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private bool TryFastUniformBufferUpdate(CompressedMethod meth, ReadOnlySpan<int> commandBuffer, int offset)
{
int availableCount = commandBuffer.Length - offset;
if (meth.MethodCount < availableCount &&
meth.SecOp == SecOp.NonIncMethod &&
meth.MethodAddress == UniformBufferUpdateDataMethodOffset)
if (meth.MethodAddress == UniformBufferUpdateDataMethodOffset &&
meth.MethodCount < availableCount &&
meth.SecOp == SecOp.NonIncMethod)
{
_3dClass.ConstantBufferUpdate(commandBuffer.Slice(offset + 1, meth.MethodCount));

20
Ryujinx.Graphics.Gpu/Engine/InlineToMemory/InlineToMemoryClass.cs
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@ -127,6 +127,26 @@ namespace Ryujinx.Graphics.Gpu.Engine.InlineToMemory
_finished = false;
}
/// <summary>
/// Pushes a block of data to the Inline-to-Memory engine.
/// </summary>
/// <param name="data">Data to push</param>
public void LoadInlineData(ReadOnlySpan<int> data)
{
if (!_finished)
{
int copySize = Math.Min(data.Length, _buffer.Length - _offset);
data.Slice(0, copySize).CopyTo(new Span<int>(_buffer).Slice(_offset, copySize));
_offset += copySize;
if (_offset * 4 >= _size)
{
FinishTransfer();
}
}
}
/// <summary>
/// Pushes a word of data to the Inline-to-Memory engine.
/// </summary>

9
Ryujinx.Graphics.Gpu/Engine/Threed/ThreedClass.cs
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@ -183,6 +183,15 @@ namespace Ryujinx.Graphics.Gpu.Engine.Threed
_i2mClass.LaunchDma(ref Unsafe.As<ThreedClassState, InlineToMemoryClassState>(ref _state.State), argument);
}
/// <summary>
/// Pushes a block of data to the Inline-to-Memory engine.
/// </summary>
/// <param name="data">Data to push</param>
public void LoadInlineData(ReadOnlySpan<int> data)
{
_i2mClass.LoadInlineData(data);
}
/// <summary>
/// Pushes a word of data to the Inline-to-Memory engine.
/// </summary>