GPU: Migrate buffers on GPU project, pre-emptively flush device local mappings (#6794)

* GPU: Migrate buffers on GPU project, pre-emptively flush device local mappings

Essentially retreading #4540, but it's on the GPU project now instead of the backend. This allows us to have a lot more control + knowledge of where the buffer backing has been changed and allows us to pre-emptively flush pages to host memory for quicker readback. It will allow us to do other stuff in the future, but we'll get there when we get there.

Performance greatly improved in Hyrule Warriors: Age of Calamity. Performance notably improved in TOTK (average). Performance for BOTW restored to how it was before #4911, perhaps a bit better.

- Rewrites a bunch of buffer migration stuff. Might want to tighten up how dispose stuff works.
- Fixed an issue where the copy for texture pre-flush would happen _after_ the syncpoint.

TODO: remove a page from pre-flush if it isn't flushed after a certain number of copies.

* Add copy deactivation

* Fix dependent virtual buffers

* Remove logging

* Fix format issues (maybe)

* Vulkan: Remove backing swap

* Add explicit memory access types for most buffers

* Fix typo

* Add device local force expiry, change buffer inheritance behaviour

* General cleanup, OGL fix

* BufferPreFlush comments

* BufferBackingState comments

* Add an extra precaution to BufferMigration

This is very unlikely, but it's important to cover loose ends like this.

* Address some feedback

* Docs

4 files changed, 0 insertions, 42 deletions

diff --git a/src/Ryujinx.Graphics.GAL/Multithreading/CommandHelper.cs b/src/Ryujinx.Graphics.GAL/Multithreading/CommandHelper.cs
index fd2919be..23f1a64e 100644
--- a/src/Ryujinx.Graphics.GAL/Multithreading/CommandHelper.cs
+++ b/src/Ryujinx.Graphics.GAL/Multithreading/CommandHelper.cs
@@ -44,7 +44,6 @@ namespace Ryujinx.Graphics.GAL.Multithreading
             }
 
             Register<ActionCommand>(CommandType.Action);
-            Register<CreateBufferCommand>(CommandType.CreateBuffer);
             Register<CreateBufferAccessCommand>(CommandType.CreateBufferAccess);
             Register<CreateBufferSparseCommand>(CommandType.CreateBufferSparse);
             Register<CreateHostBufferCommand>(CommandType.CreateHostBuffer);
diff --git a/src/Ryujinx.Graphics.GAL/Multithreading/CommandType.cs b/src/Ryujinx.Graphics.GAL/Multithreading/CommandType.cs
index a5e7336c..f95aab05 100644
--- a/src/Ryujinx.Graphics.GAL/Multithreading/CommandType.cs
+++ b/src/Ryujinx.Graphics.GAL/Multithreading/CommandType.cs
@@ -3,7 +3,6 @@ namespace Ryujinx.Graphics.GAL.Multithreading
     enum CommandType : byte
     {
         Action,
-        CreateBuffer,
         CreateBufferAccess,
         CreateBufferSparse,
         CreateHostBuffer,
diff --git a/src/Ryujinx.Graphics.GAL/Multithreading/Commands/Renderer/CreateBufferCommand.cs b/src/Ryujinx.Graphics.GAL/Multithreading/Commands/Renderer/CreateBufferCommand.cs
deleted file mode 100644
index 60a6e4bf..00000000
--- a/src/Ryujinx.Graphics.GAL/Multithreading/Commands/Renderer/CreateBufferCommand.cs
+++ /dev/null
@@ -1,31 +0,0 @@
-namespace Ryujinx.Graphics.GAL.Multithreading.Commands.Renderer
-{
-    struct CreateBufferCommand : IGALCommand, IGALCommand<CreateBufferCommand>
-    {
-        public readonly CommandType CommandType => CommandType.CreateBuffer;
-        private BufferHandle _threadedHandle;
-        private int _size;
-        private BufferAccess _access;
-        private BufferHandle _storageHint;
-
-        public void Set(BufferHandle threadedHandle, int size, BufferAccess access, BufferHandle storageHint)
-        {
-            _threadedHandle = threadedHandle;
-            _size = size;
-            _access = access;
-            _storageHint = storageHint;
-        }
-
-        public static void Run(ref CreateBufferCommand command, ThreadedRenderer threaded, IRenderer renderer)
-        {
-            BufferHandle hint = BufferHandle.Null;
-
-            if (command._storageHint != BufferHandle.Null)
-            {
-                hint = threaded.Buffers.MapBuffer(command._storageHint);
-            }
-
-            threaded.Buffers.AssignBuffer(command._threadedHandle, renderer.CreateBuffer(command._size, command._access, hint));
-        }
-    }
-}
diff --git a/src/Ryujinx.Graphics.GAL/Multithreading/ThreadedRenderer.cs b/src/Ryujinx.Graphics.GAL/Multithreading/ThreadedRenderer.cs
index 5e17bcd2..cc3d2e5c 100644
--- a/src/Ryujinx.Graphics.GAL/Multithreading/ThreadedRenderer.cs
+++ b/src/Ryujinx.Graphics.GAL/Multithreading/ThreadedRenderer.cs
@@ -272,15 +272,6 @@ namespace Ryujinx.Graphics.GAL.Multithreading
             return handle;
         }
 
-        public BufferHandle CreateBuffer(int size, BufferAccess access, BufferHandle storageHint)
-        {
-            BufferHandle handle = Buffers.CreateBufferHandle();
-            New<CreateBufferCommand>().Set(handle, size, access, storageHint);
-            QueueCommand();
-
-            return handle;
-        }
-
         public BufferHandle CreateBuffer(nint pointer, int size)
         {
             BufferHandle handle = Buffers.CreateBufferHandle();