1 files changed, 61 insertions, 0 deletions
diff --git a/src/Ryujinx.Cpu/ICpuContext.cs b/src/Ryujinx.Cpu/ICpuContext.cs
new file mode 100644
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+++ b/src/Ryujinx.Cpu/ICpuContext.cs
@@ -0,0 +1,61 @@
+namespace Ryujinx.Cpu
+{
+    /// <summary>
+    /// CPU context interface.
+    /// </summary>
+    public interface ICpuContext
+    {
+        /// <summary>
+        /// Creates a new execution context that will store thread CPU register state when executing guest code.
+        /// </summary>
+        /// <param name="exceptionCallbacks">Optional functions to be called when the CPU receives an interrupt</param>
+        /// <returns>Execution context</returns>
+        IExecutionContext CreateExecutionContext(ExceptionCallbacks exceptionCallbacks);
+
+        /// <summary>
+        /// Starts executing code at a specified entry point address.
+        /// </summary>
+        /// <remarks>
+        /// This function only returns when the execution is stopped, by calling <see cref="IExecutionContext.StopRunning"/>.
+        /// </remarks>
+        /// <param name="context">Execution context to be used for this run</param>
+        /// <param name="address">Entry point address</param>
+        void Execute(IExecutionContext context, ulong address);
+
+        /// <summary>
+        /// Invalidates the instruction cache for a given memory region.
+        /// </summary>
+        /// <remarks>
+        /// This should be called if code is modified to make the CPU emulator aware of the modifications,
+        /// otherwise it might run stale code which will lead to errors and crashes.
+        /// Calling this function is not necessary if the code memory was modified by guest code,
+        /// as the expectation is that it will do it on its own using the appropriate cache invalidation instructions,
+        /// except on Arm32 where those instructions can't be used in unprivileged mode.
+        /// </remarks>
+        /// <param name="address">Address of the region to be invalidated</param>
+        /// <param name="size">Size of the region to be invalidated</param>
+        void InvalidateCacheRegion(ulong address, ulong size);
+
+        /// <summary>
+        /// Loads cached code from disk for a given application.
+        /// </summary>
+        /// <remarks>
+        /// If the execution engine is recompiling guest code, this can be used to load cached code from disk.
+        /// </remarks>
+        /// <param name="titleIdText">Title ID of the application in padded hex form</param>
+        /// <param name="displayVersion">Version of the application</param>
+        /// <param name="enabled">True if the cache should be loaded from disk if it exists, false otherwise</param>
+        /// <returns>Disk cache load progress reporter and manager</returns>
+        IDiskCacheLoadState LoadDiskCache(string titleIdText, string displayVersion, bool enabled);
+
+        /// <summary>
+        /// Indicates that code has been loaded into guest memory, and that it might be executed in the future.
+        /// </summary>
+        /// <remarks>
+        /// Some execution engines might use this information to cache recompiled code on disk or to ensure it can be executed.
+        /// </remarks>
+        /// <param name="address">CPU virtual address where the code starts</param>
+        /// <param name="size">Size of the code range in bytes</param>
+        void PrepareCodeRange(ulong address, ulong size);
+    }
+}