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Initial support for separate GPU address spaces (#2394)

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* Make GPU memory manager a member of GPU channel

* Move physical memory instance to the memory manager, and the caches to the physical memory

* PR feedback
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gdkchan 2021-06-29 14:32:02 -03:00 • committed by GitHub
parent 8cc872fb60
commit fbb4019ed5
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44 changed files with 780 additions and 481 deletions
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70
Ryujinx.Graphics.Gpu/Memory/PhysicalMemory.cs
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@ -1,5 +1,7 @@
using Ryujinx.Cpu;
using Ryujinx.Cpu.Tracking;
using Ryujinx.Graphics.Gpu.Image;
using Ryujinx.Graphics.Gpu.Shader;
using Ryujinx.Memory;
using Ryujinx.Memory.Range;
using Ryujinx.Memory.Tracking;
@ -7,6 +9,7 @@ using System;
using System.Collections.Generic;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Threading;
namespace Ryujinx.Graphics.Gpu.Memory
{
@ -18,20 +21,63 @@ namespace Ryujinx.Graphics.Gpu.Memory
{
public const int PageSize = 0x1000;
private readonly GpuContext _context;
private IVirtualMemoryManagerTracked _cpuMemory;
private int _referenceCount;
/// <summary>
/// In-memory shader cache.
/// </summary>
public ShaderCache ShaderCache { get; }
/// <summary>
/// GPU buffer manager.
/// </summary>
public BufferCache BufferCache { get; }
/// <summary>
/// GPU texture manager.
/// </summary>
public TextureCache TextureCache { get; }
/// <summary>
/// Creates a new instance of the physical memory.
/// </summary>
/// <param name="context">GPU context that the physical memory belongs to</param>
/// <param name="cpuMemory">CPU memory manager of the application process</param>
public PhysicalMemory(IVirtualMemoryManagerTracked cpuMemory)
public PhysicalMemory(GpuContext context, IVirtualMemoryManagerTracked cpuMemory)
{
_context = context;
_cpuMemory = cpuMemory;
ShaderCache = new ShaderCache(context);
BufferCache = new BufferCache(context, this);
TextureCache = new TextureCache(context, this);
if (_cpuMemory is IRefCounted rc)
if (cpuMemory is IRefCounted rc)
{
rc.IncrementReferenceCount();
}
_referenceCount = 1;
}
/// <summary>
/// Increments the memory reference count.
/// </summary>
public void IncrementReferenceCount()
{
Interlocked.Increment(ref _referenceCount);
}
/// <summary>
/// Decrements the memory reference count.
/// </summary>
public void DecrementReferenceCount()
{
if (Interlocked.Decrement(ref _referenceCount) == 0 && _cpuMemory is IRefCounted rc)
{
rc.DecrementReferenceCount();
}
}
/// <summary>
@ -147,7 +193,7 @@ namespace Ryujinx.Graphics.Gpu.Memory
/// <param name="range">Ranges of physical memory where the data is located</param>
/// <param name="data">Data to be written</param>
/// <param name="writeCallback">Callback method that will perform the write</param>
private void WriteImpl(MultiRange range, ReadOnlySpan<byte> data, WriteCallback writeCallback)
private static void WriteImpl(MultiRange range, ReadOnlySpan<byte> data, WriteCallback writeCallback)
{
if (range.Count == 1)
{
@ -227,12 +273,20 @@ namespace Ryujinx.Graphics.Gpu.Memory
/// </summary>
public void Dispose()
{
if (_cpuMemory is IRefCounted rc)
{
rc.DecrementReferenceCount();
_context.DeferredActions.Enqueue(Destroy);
}
_cpuMemory = null;
}
/// <summary>
/// Performs disposal of the host GPU caches with resources mapped on this physical memory.
/// This must only be called from the render thread.
/// </summary>
private void Destroy()
{
ShaderCache.Dispose();
BufferCache.Dispose();
TextureCache.Dispose();
DecrementReferenceCount();
}
}
}