port.cc revision 13288
1/* 2 * Copyright 2018 Google, Inc. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: redistributions of source code must retain the above copyright 7 * notice, this list of conditions and the following disclaimer; 8 * redistributions in binary form must reproduce the above copyright 9 * notice, this list of conditions and the following disclaimer in the 10 * documentation and/or other materials provided with the distribution; 11 * neither the name of the copyright holders nor the names of its 12 * contributors may be used to endorse or promote products derived from 13 * this software without specific prior written permission. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 18 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 19 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 21 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 * 27 * Authors: Gabe Black 28 */ 29 30#include "systemc/core/port.hh" 31 32#include "systemc/core/process.hh" 33#include "systemc/core/sensitivity.hh" 34#include "systemc/ext/channel/sc_signal_in_if.hh" 35 36namespace sc_gem5 37{ 38 39void 40Port::finalizePort(StaticSensitivityPort *port) 41{ 42 for (int i = 0; i < size(); i++) 43 port->addEvent(&getInterface(i)->default_event()); 44} 45 46void 47Port::finalizeFinder(StaticSensitivityFinder *finder) 48{ 49 for (int i = 0; i < size(); i++) 50 finder->addEvent(&finder->find(getInterface(i))); 51} 52 53void 54Port::finalizeReset(Reset *reset) 55{ 56 assert(size() <= 1); 57 if (size()) { 58 auto iface = 59 dynamic_cast<sc_core::sc_signal_in_if<bool> *>(getInterface(0)); 60 assert(iface); 61 if (!reset->install(iface)) 62 delete reset; 63 } 64} 65 66void 67Port::sensitive(StaticSensitivityPort *port) 68{ 69 if (finalized) 70 finalizePort(port); 71 else 72 sensitivities.push_back(new Sensitivity(port)); 73} 74 75void 76Port::sensitive(StaticSensitivityFinder *finder) 77{ 78 if (finalized) 79 finalizeFinder(finder); 80 else 81 sensitivities.push_back(new Sensitivity(finder)); 82} 83 84void 85Port::addReset(Reset *reset) 86{ 87 if (finalized) 88 finalizeReset(reset); 89 else 90 resets.push_back(reset); 91} 92 93void 94Port::finalize() 95{ 96 if (finalized) 97 return; 98 finalized = true; 99 100 for (auto &b: bindings) { 101 if (b->interface) { 102 addInterface(b->interface); 103 } else { 104 b->port->_gem5Port->finalize(); 105 addInterfaces(b->port); 106 } 107 delete b; 108 } 109 110 bindings.clear(); 111 112 for (auto &s: sensitivities) { 113 if (s->port) 114 finalizePort(s->port); 115 else 116 finalizeFinder(s->finder); 117 delete s; 118 } 119 120 sensitivities.clear(); 121 122 for (auto &r: resets) 123 finalizeReset(r); 124 125 resets.clear(); 126} 127 128void 129Port::regPort() 130{ 131 if (!regPortNeeded) 132 return; 133 134 for (int i = 0; i < size(); i++) 135 getInterface(i)->register_port(*portBase, portBase->_ifTypeName()); 136} 137 138std::list<Port *> allPorts; 139 140} // namespace sc_gem5 141