isa_device.hh

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/*
 * Copyright (c) 2014 ARM Limited
 * All rights reserved
 *
 * The license below extends only to copyright in the software and shall
 * not be construed as granting a license to any other intellectual
 * property including but not limited to intellectual property relating
 * to a hardware implementation of the functionality of the software
 * licensed hereunder.  You may use the software subject to the license
 * terms below provided that you ensure that this notice is replicated
 * unmodified and in its entirety in all distributions of the software,
 * modified or unmodified, in source code or in binary form.
 *
 * 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
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 * 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.
 *
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 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * Authors: Andreas Sandberg
 */

#ifndef __ARCH_ARM_ISA_DEVICE_HH__
#define __ARCH_ARM_ISA_DEVICE_HH__

#include "arch/arm/registers.hh"
#include "base/compiler.hh"

namespace ArmISA
{

class ISA;

class BaseISADevice
{
  public:
    BaseISADevice();
    virtual ~BaseISADevice() {}

    virtual void setISA(ISA *isa);

    virtual void setMiscReg(int misc_reg, MiscReg val) = 0;

    virtual MiscReg readMiscReg(int misc_reg) = 0;

  protected:
    ISA *isa;
};

class DummyISADevice : public BaseISADevice
{
  public:
    DummyISADevice()
        : BaseISADevice() {}
    ~DummyISADevice() {}

    void setMiscReg(int misc_reg, MiscReg val) override;
    MiscReg readMiscReg(int misc_reg) override;
};

}

#endif // __ARCH_ARM_ISA_DEVICE_HH__