1 files changed, 77 insertions, 0 deletions
diff --git a/src/Ryujinx.HLE/HOS/Kernel/Process/KTlsPageInfo.cs b/src/Ryujinx.HLE/HOS/Kernel/Process/KTlsPageInfo.cs
new file mode 100644
index 00000000..f55e3c10
--- /dev/null
+++ b/src/Ryujinx.HLE/HOS/Kernel/Process/KTlsPageInfo.cs
@@ -0,0 +1,77 @@
+using Ryujinx.HLE.HOS.Kernel.Memory;
+
+namespace Ryujinx.HLE.HOS.Kernel.Process
+{
+    class KTlsPageInfo
+    {
+        public const int TlsEntrySize = 0x200;
+
+        public ulong PageVirtualAddress { get; }
+        public ulong PagePhysicalAddress { get; }
+
+        private readonly bool[] _isSlotFree;
+
+        public KTlsPageInfo(ulong pageVirtualAddress, ulong pagePhysicalAddress)
+        {
+            PageVirtualAddress = pageVirtualAddress;
+            PagePhysicalAddress = pagePhysicalAddress;
+
+            _isSlotFree = new bool[KPageTableBase.PageSize / TlsEntrySize];
+
+            for (int index = 0; index < _isSlotFree.Length; index++)
+            {
+                _isSlotFree[index] = true;
+            }
+        }
+
+        public bool TryGetFreePage(out ulong address)
+        {
+            address = PageVirtualAddress;
+
+            for (int index = 0; index < _isSlotFree.Length; index++)
+            {
+                if (_isSlotFree[index])
+                {
+                    _isSlotFree[index] = false;
+
+                    return true;
+                }
+
+                address += TlsEntrySize;
+            }
+
+            address = 0;
+
+            return false;
+        }
+
+        public bool IsFull()
+        {
+            bool hasFree = false;
+
+            for (int index = 0; index < _isSlotFree.Length; index++)
+            {
+                hasFree |= _isSlotFree[index];
+            }
+
+            return !hasFree;
+        }
+
+        public bool IsEmpty()
+        {
+            bool allFree = true;
+
+            for (int index = 0; index < _isSlotFree.Length; index++)
+            {
+                allFree &= _isSlotFree[index];
+            }
+
+            return allFree;
+        }
+
+        public void FreeTlsSlot(ulong address)
+        {
+            _isSlotFree[(address - PageVirtualAddress) / TlsEntrySize] = true;
+        }
+    }
+}
+\ No newline at end of file