Add mechanism to migrate multi root device memory

invalidate TLB cache if kernel requires migration


Related-To: NEO-3691

Signed-off-by: Mateusz Jablonski <mateusz.jablonski@intel.com>

opencl/source/memory_manager/migration_controller.h

@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2021 Intel Corporation
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ */
+
+#pragma once
+#include <cstdint>
+
+namespace NEO {
+class MemoryManager;
+class CommandStreamReceiver;
+class Context;
+class MultiGraphicsAllocation;
+class MemObj;
+class MigrationController {
+  public:
+    static void handleMigration(Context &context, CommandStreamReceiver &targetCsr, MemObj *memObj);
+    static void migrateMemory(Context &context, MemoryManager &memoryManager, MemObj *memObj, uint32_t targetRootDeviceIndex);
+};
+} // namespace NEO