1 files changed, 33 insertions, 0 deletions
diff --git a/Ryujinx.Graphics.Gpu/Memory/MemoryManager.cs b/Ryujinx.Graphics.Gpu/Memory/MemoryManager.cs
index 7021cd20..5776836c 100644
--- a/Ryujinx.Graphics.Gpu/Memory/MemoryManager.cs
+++ b/Ryujinx.Graphics.Gpu/Memory/MemoryManager.cs
@@ -344,6 +344,39 @@ namespace Ryujinx.Graphics.Gpu.Memory
         }
 
         /// <summary>
+        /// Checks if a given GPU virtual memory range is mapped to the same physical regions
+        /// as the specified physical memory multi-range.
+        /// </summary>
+        /// <param name="range">Physical memory multi-range</param>
+        /// <param name="va">GPU virtual memory address</param>
+        /// <returns>True if the virtual memory region is mapped into the specified physical one, false otherwise</returns>
+        public bool CompareRange(MultiRange range, ulong va)
+        {
+            va &= ~PageMask;
+
+            for (int i = 0; i < range.Count; i++)
+            {
+                MemoryRange currentRange = range.GetSubRange(i);
+
+                ulong address = currentRange.Address & ~PageMask;
+                ulong endAddress = (currentRange.EndAddress + PageMask) & ~PageMask;
+
+                while (address < endAddress)
+                {
+                    if (Translate(va) != address)
+                    {
+                        return false;
+                    }
+
+                    va += PageSize;
+                    address += PageSize;
+                }
+            }
+
+            return true;
+        }
+
+        /// <summary>
         /// Validates a GPU virtual address.
         /// </summary>
         /// <param name="va">Address to validate</param>