From 1876b346fea647e8284a66bb6d62c38801035cff Mon Sep 17 00:00:00 2001
From: gdk <gab.dark.100@gmail.com>
Date: Sun, 13 Oct 2019 03:02:07 -0300
Subject: Initial work

---
 Ryujinx.Graphics/Memory/NvGpuVmmCache.cs | 79 --------------------------------
 1 file changed, 79 deletions(-)
 delete mode 100644 Ryujinx.Graphics/Memory/NvGpuVmmCache.cs

(limited to 'Ryujinx.Graphics/Memory/NvGpuVmmCache.cs')

diff --git a/Ryujinx.Graphics/Memory/NvGpuVmmCache.cs b/Ryujinx.Graphics/Memory/NvGpuVmmCache.cs
deleted file mode 100644
index 2a505443..00000000
--- a/Ryujinx.Graphics/Memory/NvGpuVmmCache.cs
+++ /dev/null
@@ -1,79 +0,0 @@
-using ARMeilleure.Memory;
-using System.Collections.Concurrent;
-
-namespace Ryujinx.Graphics.Memory
-{
-    class NvGpuVmmCache
-    {
-        private const int PageBits = MemoryManager.PageBits;
-
-        private const long PageSize = MemoryManager.PageSize;
-        private const long PageMask = MemoryManager.PageMask;
-
-        private ConcurrentDictionary<long, int>[] _cachedPages;
-
-        private MemoryManager _memory;
-
-        public NvGpuVmmCache(MemoryManager memory)
-        {
-            _memory = memory;
-
-            _cachedPages = new ConcurrentDictionary<long, int>[1 << 20];
-        }
-
-        public bool IsRegionModified(long position, long size, NvGpuBufferType bufferType)
-        {
-            long va = position;
-
-            long pa = _memory.GetPhysicalAddress(va);
-
-            long endAddr = (va + size + PageMask) & ~PageMask;
-
-            long addrTruncated = va & ~PageMask;
-
-            bool modified = _memory.IsRegionModified(addrTruncated, endAddr - addrTruncated);
-
-            int newBuffMask = 1 << (int)bufferType;
-
-            long cachedPagesCount = 0;
-
-            while (va < endAddr)
-            {
-                long page = _memory.GetPhysicalAddress(va) >> PageBits;
-
-                ConcurrentDictionary<long, int> dictionary = _cachedPages[page];
-
-                if (dictionary == null)
-                {
-                    dictionary = new ConcurrentDictionary<long, int>();
-
-                    _cachedPages[page] = dictionary;
-                }
-                else if (modified)
-                {
-                    _cachedPages[page].Clear();
-                }
-
-                if (dictionary.TryGetValue(pa, out int currBuffMask))
-                {
-                    if ((currBuffMask & newBuffMask) != 0)
-                    {
-                        cachedPagesCount++;
-                    }
-                    else
-                    {
-                        dictionary[pa] |= newBuffMask;
-                    }
-                }
-                else
-                {
-                    dictionary[pa] = newBuffMask;
-                }
-
-                va += PageSize;
-            }
-
-            return cachedPagesCount != (endAddr - addrTruncated) >> PageBits;
-        }
-    }
-}
\ No newline at end of file
-- 
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