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/*
* Copyright (c) 2006 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: Gabe Black
*/
#ifndef __SIM_TLB_HH__
#define __SIM_TLB_HH__
#include "base/misc.hh"
#include "mem/request.hh"
#include "sim/faults.hh"
#include "sim/sim_object.hh"
class ThreadContext;
class Packet;
class GenericTLBBase : public SimObject
{
protected:
GenericTLBBase(const std::string &name) : SimObject(name)
{}
Fault translate(RequestPtr req, ThreadContext *tc);
};
template <bool doSizeCheck=true, bool doAlignmentCheck=true>
class GenericTLB : public GenericTLBBase
{
public:
GenericTLB(const std::string &name) : GenericTLBBase(name)
{}
Fault translate(RequestPtr req, ThreadContext *tc, bool=false)
{
Fault fault = GenericTLBBase::translate(req, tc);
if (fault != NoFault)
return fault;
typeof(req->getSize()) size = req->getSize();
Addr paddr = req->getPaddr();
if(doSizeCheck && !isPowerOf2(size))
panic("Invalid request size!\n");
if (doAlignmentCheck && ((size - 1) & paddr))
return new GenericAlignmentFault(paddr);
return NoFault;
}
};
template <bool doSizeCheck=true, bool doAlignmentCheck=true>
class GenericITB : public GenericTLB<doSizeCheck, doAlignmentCheck>
{
public:
GenericITB(const std::string &name) :
GenericTLB<doSizeCheck, doAlignmentCheck>(name)
{}
};
template <bool doSizeCheck=true, bool doAlignmentCheck=true>
class GenericDTB : public GenericTLB<doSizeCheck, doAlignmentCheck>
{
public:
GenericDTB(const std::string &name) :
GenericTLB<doSizeCheck, doAlignmentCheck>(name)
{}
};
#endif // __ARCH_SPARC_TLB_HH__
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