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diff --git a/src/dev/tsunami.hh b/src/dev/tsunami.hh
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+/*
+ * Copyright (c) 2004-2005 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/**
+ * @file
+ * Declaration of top level class for the Tsunami chipset. This class just
+ * retains pointers to all its children so the children can communicate.
+ */
+
+#ifndef __DEV_TSUNAMI_HH__
+#define __DEV_TSUNAMI_HH__
+
+#include "dev/platform.hh"
+
+class IdeController;
+class TsunamiCChip;
+class TsunamiPChip;
+class TsunamiIO;
+class System;
+
+/**
+  * Top level class for Tsunami Chipset emulation.
+  * This structure just contains pointers to all the
+  * children so the children can commnicate to do the
+  * read work
+  */
+
+class Tsunami : public Platform
+{
+  public:
+    /** Max number of CPUs in a Tsunami */
+    static const int Max_CPUs = 64;
+
+    /** Pointer to the system */
+    System *system;
+
+    /** Pointer to the TsunamiIO device which has the RTC */
+    TsunamiIO *io;
+
+    /** Pointer to the Tsunami CChip.
+     * The chip contains some configuration information and
+     * all the interrupt mask and status registers
+     */
+    TsunamiCChip *cchip;
+
+    /** Pointer to the Tsunami PChip.
+     * The pchip is the interface to the PCI bus, in our case
+     * it does not have to do much.
+     */
+    TsunamiPChip *pchip;
+
+    int intr_sum_type[Tsunami::Max_CPUs];
+    int ipi_pending[Tsunami::Max_CPUs];
+
+  public:
+    /**
+     * Constructor for the Tsunami Class.
+     * @param name name of the object
+     * @param intrctrl pointer to the interrupt controller
+     */
+    Tsunami(const std::string &name, System *s, IntrControl *intctrl);
+
+    /**
+     * Return the interrupting frequency to AlphaAccess
+     * @return frequency of RTC interrupts
+     */
+    virtual Tick intrFrequency();
+
+    /**
+     * Cause the cpu to post a serial interrupt to the CPU.
+     */
+    virtual void postConsoleInt();
+
+    /**
+     * Clear a posted CPU interrupt (id=55)
+     */
+    virtual void clearConsoleInt();
+
+    /**
+     * Cause the chipset to post a cpi interrupt to the CPU.
+     */
+    virtual void postPciInt(int line);
+
+    /**
+     * Clear a posted PCI->CPU interrupt
+     */
+    virtual void clearPciInt(int line);
+
+    virtual Addr pciToDma(Addr pciAddr) const;
+
+    /**
+     * Serialize this object to the given output stream.
+     * @param os The stream to serialize to.
+     */
+    virtual void serialize(std::ostream &os);
+
+    /**
+     * Reconstruct the state of this object from a checkpoint.
+     * @param cp The checkpoint use.
+     * @param section The section name of this object
+     */
+    virtual void unserialize(Checkpoint *cp, const std::string &section);
+};
+
+#endif // __DEV_TSUNAMI_HH__