| /* |
| * Copyright (c) 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. |
| */ |
| |
| #ifndef __CPU_EA_LIST_HH__ |
| #define __CPU_EA_LIST_HH__ |
| |
| #include <list> |
| #include <utility> |
| |
| #include "arch/alpha/isa_traits.hh" |
| #include "cpu/inst_seq.hh" |
| |
| /** |
| * Simple class to hold onto a list of pairs, each pair having a memory |
| * instruction's sequence number and effective addr. This list can be used |
| * for memory disambiguation. However, if I ever want to forward results, I |
| * may have to use a list that holds DynInstPtrs. Hence this may change in |
| * the future. |
| */ |
| class EAList { |
| private: |
| typedef std::pair<InstSeqNum, Addr> instEA; |
| typedef std::list<instEA>::iterator eaListIt; |
| typedef std::list<instEA>::const_iterator constEAListIt; |
| |
| std::list<instEA> eaList; |
| |
| public: |
| EAList() { } |
| ~EAList() { } |
| |
| void addAddr(const InstSeqNum &new_sn, const Addr &new_ea); |
| |
| void clearAddr(const InstSeqNum &sn_to_clear, const Addr &ea_to_clear); |
| |
| /** Checks if any instructions older than check_sn have a conflicting |
| * address with check_ea. Note that this function does not handle the |
| * sequence number rolling over. |
| */ |
| bool checkConflict(const InstSeqNum &check_sn, const Addr &check_ea) const; |
| |
| void clear(); |
| |
| void commit(const InstSeqNum &commit_sn); |
| }; |
| |
| #endif // __CPU_EA_LIST_HH__ |