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/*
* Copyright (c) 2010 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.
*
* Copyright (c) 2002-2005 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.
*
* Authors: Ali Saidi
*/
#ifndef __ARCH_ARM_SYSTEM_HH__
#define __ARCH_ARM_SYSTEM_HH__
#include <string>
#include <vector>
#include "kern/linux/events.hh"
#include "params/ArmSystem.hh"
#include "sim/sim_object.hh"
#include "sim/system.hh"
class ArmSystem : public System
{
protected:
/**
* PC based event to skip the dprink() call and emulate its
* functionality
*/
Linux::DebugPrintkEvent *debugPrintkEvent;
/**
* Pointer to the bootloader object
*/
ObjectFile *bootldr;
public:
typedef ArmSystemParams Params;
const Params *
params() const
{
return dynamic_cast<const Params *>(_params);
}
ArmSystem(Params *p);
~ArmSystem();
void initState();
/** Check if an address should be uncacheable until all caches are enabled.
* This exits because coherence on some addresses at boot is maintained via
* sw coherence until the caches are enbaled. Since we don't support sw
* coherence operations in gem5, this is a method that allows a system
* type to designate certain addresses that should remain uncachebale
* for a while.
*/
virtual bool adderBootUncacheable(Addr a) { return false; }
virtual Addr fixFuncEventAddr(Addr addr)
{
// Remove the low bit that thumb symbols have set
// but that aren't actually odd aligned
if (addr & 0x1)
return addr & ~1;
return addr;
}
};
#endif
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