More flexible memory manager (#307)

* Keep track mapped buffers with fixed offsets

* Started rewriting the memory manager

* Initial support for MapPhysicalMemory and UnmapPhysicalMemory, other tweaks

* MapPhysicalMemory/UnmapPhysicalMemory support, other tweaks

* Rebased

* Optimize the map/unmap physical memory svcs

* Integrate shared font support

* Fix address space reserve alignment

* Some fixes related to gpu memory mapping

* Some cleanup

* Only try uploading const buffers that are really used

* Check if memory region is contiguous

* Rebased

* Add missing count increment on IsRegionModified

* Check for reads/writes outside of the address space, optimize translation with a tail call

Ryujinx.HLE/OsHle/Handles/KTlsPageManager.cs

@@ -0,0 +1,60 @@
+using System;
+
+namespace Ryujinx.HLE.OsHle.Handles
+{
+    class KTlsPageManager
+    {
+        private const int TlsEntrySize = 0x200;
+
+        private long PagePosition;
+
+        private int UsedSlots;
+
+        private bool[] Slots;
+
+        public bool IsEmpty => UsedSlots == 0;
+        public bool IsFull  => UsedSlots == Slots.Length;
+
+        public KTlsPageManager(long PagePosition)
+        {
+            this.PagePosition = PagePosition;
+
+            Slots = new bool[KMemoryManager.PageSize / TlsEntrySize];
+        }
+
+        public bool TryGetFreeTlsAddr(out long Position)
+        {
+            Position = PagePosition;
+
+            for (int Index = 0; Index < Slots.Length; Index++)
+            {
+                if (!Slots[Index])
+                {
+                    Slots[Index] = true;
+
+                    UsedSlots++;
+
+                    return true;
+                }
+
+                Position += TlsEntrySize;
+            }
+
+            Position = 0;
+
+            return false;
+        }
+
+        public void FreeTlsSlot(int Slot)
+        {
+            if ((uint)Slot > Slots.Length)
+            {
+                throw new ArgumentOutOfRangeException(nameof(Slot));
+            }
+
+            Slots[Slot] = false;
+
+            UsedSlots--;
+        }
+    }
+}