malta_cchip.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
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 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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#ifndef __MALTA_CCHIP_HH__
#define __MALTA_CCHIP_HH__
 
#include "dev/mips/malta.hh"
#include "dev/io_device.hh"
#include "params/MaltaCChip.hh"
 
namespace gem5
{

class MaltaCChip : public BasicPioDevice
{
  protected:
    Malta *malta;

    //uint64_t dim[Malta::Max_CPUs];

    //uint64_t dir[Malta::Max_CPUs];

    //uint64_t drir;

    //uint64_t ipint;

    //uint64_t itint;
 
  public:
    using Params = MaltaCChipParams;

    MaltaCChip(const Params &p);
 
    Tick read(PacketPtr pkt) override;
 
    Tick write(PacketPtr pkt) override;

    void postRTC();

    void postIntr(uint32_t interrupt);

    void clearIntr(uint32_t interrupt);

    void clearIPI(uint64_t ipintr);

    void clearITI(uint64_t itintr);

    void reqIPI(uint64_t ipreq);
 
    void serialize(CheckpointOut &cp) const override;
    void unserialize(CheckpointIn &cp) override;
};
 
} // namespace gem5
 
#endif // __MALTA_CCHIP_HH__