Allow DRAM size to be increased from 4GB to 6GB (#2174)

* Allow DRAM size to be increased from 4GB to 6GB

* Add option on the UI

1 files changed, 62 insertions, 0 deletions

diff --git a/Ryujinx.HLE/MemoryConfiguration.cs b/Ryujinx.HLE/MemoryConfiguration.cs
new file mode 100644
index 00000000..2a59e04f
--- /dev/null
+++ b/Ryujinx.HLE/MemoryConfiguration.cs
@@ -0,0 +1,62 @@
+using Ryujinx.HLE.HOS.Kernel.Common;
+using System;
+
+namespace Ryujinx.HLE
+{
+    public enum MemoryConfiguration
+    {
+        MemoryConfiguration4GB = 0,
+        MemoryConfiguration4GBAppletDev = 1,
+        MemoryConfiguration4GBSystemDev = 2,
+        MemoryConfiguration6GB = 3,
+        MemoryConfiguration6GBAppletDev = 4,
+        MemoryConfiguration8GB = 5
+    }
+
+    static class MemoryConfigurationExtensions
+    {
+        private const ulong Gb = 1024 * 1024 * 1024;
+
+        public static MemoryArrange ToKernelMemoryArrange(this MemoryConfiguration configuration)
+        {
+            return configuration switch
+            {
+                MemoryConfiguration.MemoryConfiguration4GB => MemoryArrange.MemoryArrange4GB,
+                MemoryConfiguration.MemoryConfiguration4GBAppletDev => MemoryArrange.MemoryArrange4GBAppletDev,
+                MemoryConfiguration.MemoryConfiguration4GBSystemDev => MemoryArrange.MemoryArrange4GBSystemDev,
+                MemoryConfiguration.MemoryConfiguration6GB => MemoryArrange.MemoryArrange6GB,
+                MemoryConfiguration.MemoryConfiguration6GBAppletDev => MemoryArrange.MemoryArrange6GBAppletDev,
+                MemoryConfiguration.MemoryConfiguration8GB => MemoryArrange.MemoryArrange8GB,
+                _ => throw new AggregateException($"Invalid memory configuration \"{configuration}\".")
+            };
+        }
+
+        public static MemorySize ToKernelMemorySize(this MemoryConfiguration configuration)
+        {
+            return configuration switch
+            {
+                MemoryConfiguration.MemoryConfiguration4GB or
+                MemoryConfiguration.MemoryConfiguration4GBAppletDev or
+                MemoryConfiguration.MemoryConfiguration4GBSystemDev => MemorySize.MemorySize4GB,
+                MemoryConfiguration.MemoryConfiguration6GB or
+                MemoryConfiguration.MemoryConfiguration6GBAppletDev => MemorySize.MemorySize6GB,
+                MemoryConfiguration.MemoryConfiguration8GB => MemorySize.MemorySize8GB,
+                _ => throw new AggregateException($"Invalid memory configuration \"{configuration}\".")
+            };
+        }
+
+        public static ulong ToDramSize(this MemoryConfiguration configuration)
+        {
+            return configuration switch
+            {
+                MemoryConfiguration.MemoryConfiguration4GB or
+                MemoryConfiguration.MemoryConfiguration4GBAppletDev or
+                MemoryConfiguration.MemoryConfiguration4GBSystemDev => 4 * Gb,
+                MemoryConfiguration.MemoryConfiguration6GB or
+                MemoryConfiguration.MemoryConfiguration6GBAppletDev => 6 * Gb,
+                MemoryConfiguration.MemoryConfiguration8GB => 8 * Gb,
+                _ => throw new AggregateException($"Invalid memory configuration \"{configuration}\".")
+            };
+        }
+    }
+}
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