mathexpr_powermodel.cc revision 11527
1/* 2 * Copyright (c) 2016 ARM Limited 3 * All rights reserved 4 * 5 * The license below extends only to copyright in the software and shall 6 * not be construed as granting a license to any other intellectual 7 * property including but not limited to intellectual property relating 8 * to a hardware implementation of the functionality of the software 9 * licensed hereunder. You may use the software subject to the license 10 * terms below provided that you ensure that this notice is replicated 11 * unmodified and in its entirety in all distributions of the software, 12 * modified or unmodified, in source code or in binary form. 13 * 14 * Redistribution and use in source and binary forms, with or without 15 * modification, are permitted provided that the following conditions are 16 * met: redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer; 18 * redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution; 21 * neither the name of the copyright holders nor the names of its 22 * contributors may be used to endorse or promote products derived from 23 * this software without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 26 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 27 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 28 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 29 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 30 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 31 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 32 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 33 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 35 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 36 * 37 * Authors: David Guillen Fandos 38 */ 39 40#include "sim/power/mathexpr_powermodel.hh" 41 42#include "base/statistics.hh" 43#include "params/MathExprPowerModel.hh" 44#include "sim/mathexpr.hh" 45#include "sim/power/thermal_model.hh" 46#include "sim/sim_object.hh" 47 48MathExprPowerModel::MathExprPowerModel(const Params *p) 49 : PowerModelState(p), dyn_expr(p->dyn), st_expr(p->st) 50{ 51 // Calculate the name of the object we belong to 52 std::vector<std::string> path; 53 tokenize(path, name(), '.', true); 54 // It's something like xyz.power_model.pm2 55 assert(path.size() > 2); 56 for (unsigned i = 0; i < path.size() - 2; i++) 57 basename += path[i] + "."; 58} 59 60void 61MathExprPowerModel::startup() 62{ 63 // Create a map with stats and pointers for quick access 64 // Has to be done here, since we need access to the statsList 65 for (auto & i: Stats::statsList()) 66 if (i->name.find(basename) == 0) 67 stats_map[i->name.substr(basename.size())] = i; 68} 69 70double 71MathExprPowerModel::getStatValue(const std::string &name) const 72{ 73 using namespace Stats; 74 75 // Automatic variables: 76 if (name == "temp") 77 return _temp; 78 79 // Try to cast the stat, only these are supported right now 80 Info *info = stats_map.at(name); 81 82 ScalarInfo *si = dynamic_cast<ScalarInfo*>(info); 83 if (si) 84 return si->value(); 85 FormulaInfo *fi = dynamic_cast<FormulaInfo*>(info); 86 if (fi) 87 return fi->total(); 88 89 panic("Unknown stat type!\n"); 90} 91 92void 93MathExprPowerModel::regStats() 94{ 95 PowerModelState::regStats(); 96} 97 98MathExprPowerModel* 99MathExprPowerModelParams::create() 100{ 101 return new MathExprPowerModel(this); 102} 103