ffb6aec603
This patch takes the final plunge and transitions from the templated Range class to the more specific AddrRange. In doing so it changes the obvious Range<Addr> to AddrRange, and also bumps the range_map to be AddrRangeMap. In addition to the obvious changes, including the removal of redundant includes, this patch also does some house keeping in preparing for the introduction of address interleaving support in the ranges. The Range class is also stripped of all the functionality that is never used. --HG-- rename : src/base/range.hh => src/base/addr_range.hh rename : src/base/range_map.hh => src/base/addr_range_map.hh
89 lines
2.9 KiB
C++
89 lines
2.9 KiB
C++
/*
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* Copyright (c) 2004-2005 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Authors: Ali Saidi
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*/
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/** @file
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* Declaration of a fake device.
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*/
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#ifndef __ISA_FAKE_HH__
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#define __ISA_FAKE_HH__
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#include <string>
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#include "dev/io_device.hh"
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// #include "dev/alpha/tsunami.hh"
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#include "mem/packet.hh"
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#include "params/IsaFake.hh"
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/**
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* IsaFake is a device that returns, BadAddr, 1 or 0 on all reads and
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* rites. It is meant to be placed at an address range
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* so that an mcheck doesn't occur when an os probes a piece of hw
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* that doesn't exist (e.g. UARTs1-3), or catch requests in the memory system
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* that have no responders..
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*/
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class IsaFake : public BasicPioDevice
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{
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protected:
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uint8_t retData8;
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uint16_t retData16;
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uint32_t retData32;
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uint64_t retData64;
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public:
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typedef IsaFakeParams Params;
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const Params *
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params() const
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{
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return dynamic_cast<const Params *>(_params);
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}
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/**
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* The constructor for Isa Fake just registers itself with the MMU.
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* @param p params structure
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*/
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IsaFake(Params *p);
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/**
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* This read always returns -1.
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* @param pkt The memory request.
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* @param data Where to put the data.
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*/
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virtual Tick read(PacketPtr pkt);
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/**
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* All writes are simply ignored.
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* @param pkt The memory request.
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* @param data the data to not write.
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*/
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virtual Tick write(PacketPtr pkt);
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};
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#endif // __ISA_FAKE_HH__
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