sim/system.cc

   1 /*
   2  * Copyright (c) 2003 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
  29 #include "cpu/exec_context.hh"
  30 #include "targetarch/vtophys.hh"
  31 #include "sim/param.hh"
  32 #include "sim/system.hh"
  33
  34 using namespace std;
  35
  36 vector<System *> System::systemList;
  37
  38 int System::numSystemsRunning = 0;
  39
  40 System::System(const std::string _name,
  41                const uint64_t _init_param,
  42                MemoryController *_memCtrl,
  43                PhysicalMemory *_physmem,
  44                const bool _bin)
  45     : SimObject(_name),
  46       init_param(_init_param),
  47       memCtrl(_memCtrl),
  48       physmem(_physmem),
  49       bin(_bin)
  50 {
  51     // add self to global system list
  52     systemList.push_back(this);
  53 #ifdef FS_MEASURE
  54     if (bin == true) {
  55         nonPath = new Statistics::MainBin("non TCPIP path stats");
  56         nonPath->activate();
  57     } else
  58         nonPath = NULL;
  59 #endif
  60 }
  61
  62
  63 System::~System()
  64 {
  65 }
  66
  67
  68 int
  69 System::registerExecContext(ExecContext *xc)
  70 {
  71     int myIndex = execContexts.size();
  72     execContexts.push_back(xc);
  73     return myIndex;
  74 }
  75
  76
  77 void
  78 System::replaceExecContext(int xcIndex, ExecContext *xc)
  79 {
  80     if (xcIndex >= execContexts.size()) {
  81         panic("replaceExecContext: bad xcIndex, %d >= %d\n",
  82               xcIndex, execContexts.size());
  83     }
  84
  85     execContexts[xcIndex] = xc;
  86 }
  87
  88
  89 void
  90 System::printSystems()
  91 {
  92     vector<System *>::iterator i = systemList.begin();
  93     vector<System *>::iterator end = systemList.end();
  94     for (; i != end; ++i) {
  95         System *sys = *i;
  96         cerr << "System " << sys->name() << ": " << hex << sys << endl;
  97     }
  98 }
  99
 100 extern "C"
 101 void
 102 printSystems()
 103 {
 104     System::printSystems();
 105 }
 106
 107 #ifdef FS_MEASURE
 108 Statistics::MainBin *
 109 System::getBin(const std::string &name)
 110 {
 111     std::map<const std::string, Statistics::MainBin *>::const_iterator i;
 112     i = fnBins.find(name);
 113     if (i == fnBins.end())
 114         panic("trying to getBin that is not on system map!");
 115     return (*i).second;
 116 }
 117
 118 SWContext *
 119 System::findContext(Addr pcb)
 120 {
 121   std::map<Addr, SWContext *>::const_iterator iter;
 122   iter = swCtxMap.find(pcb);
 123   if (iter != swCtxMap.end()) {
 124       SWContext *ctx = (*iter).second;
 125       assert(ctx != NULL && "should never have a null ctx in ctxMap");
 126       return ctx;
 127   } else
 128       return NULL;
 129 }
 130 #endif //FS_MEASURE
 131
 132 DEFINE_SIM_OBJECT_CLASS_NAME("System", System)
 133