src/cpu/ozone/ea_list.cc

   1 /*
   2  * Copyright (c) 2005 The Regents of The University of Michigan
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions are
   7  * met: redistributions of source code must retain the above copyright
   8  * notice, this list of conditions and the following disclaimer;
   9  * redistributions in binary form must reproduce the above copyright
  10  * notice, this list of conditions and the following disclaimer in the
  11  * documentation and/or other materials provided with the distribution;
  12  * neither the name of the copyright holders nor the names of its
  13  * contributors may be used to endorse or promote products derived from
  14  * this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  17  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  18  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  19  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  20  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  21  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  22  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  26  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  *
  28  * Authors: Kevin Lim
  29  *          Nathan Binkert
  30  */
  31
  32 #include "arch/isa_traits.hh"
  33 #include "cpu/inst_seq.hh"
  34 #include "cpu/ooo_cpu/ea_list.hh"
  35
  36 void
  37 EAList::addAddr(const InstSeqNum &new_sn, const Addr &new_ea)
  38 {
  39     instEA newEA(new_sn, new_ea);
  40
  41     eaList.push_back(newEA);
  42 }
  43
  44 void
  45 EAList::clearAddr(const InstSeqNum &sn_to_clear, const Addr &ea_to_clear)
  46 {
  47     eaListIt list_it = eaList.begin();
  48
  49     while (list_it != eaList.end() && (*list_it).first != sn_to_clear) {
  50         assert((*list_it).second == ea_to_clear);
  51     }
  52 }
  53
  54 bool
  55 EAList::checkConflict(const InstSeqNum &check_sn, const Addr &check_ea) const
  56 {
  57     const constEAListIt list_it = eaList.begin();
  58
  59     while (list_it != eaList.end() && (*list_it).first < check_sn) {
  60         if ((*list_it).second == check_ea) {
  61             return true;
  62         }
  63     }
  64
  65     return false;
  66 }
  67
  68 void
  69 EAList::clear()
  70 {
  71     eaList.clear();
  72 }
  73
  74 void
  75 EAList::commit(const InstSeqNum &commit_sn)
  76 {
  77     while (!eaList.empty() && eaList.front().first <= commit_sn) {
  78         eaList.pop_front();
  79     }
  80 }