sc_port.cc revision 13203
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 "base/logging.hh" 31#include "systemc/core/bindinfo.hh" 32#include "systemc/core/module.hh" 33#include "systemc/core/scheduler.hh" 34#include "systemc/ext/core/sc_main.hh" 35#include "systemc/ext/core/sc_port.hh" 36 37namespace sc_core 38{ 39 40namespace 41{ 42 43void 44reportError(const char *id, const char *add_msg, 45 const char *name, const char *kind) 46{ 47 std::string msg; 48 if (add_msg) 49 msg = csprintf("%s: port '%s' (%s)", add_msg, name, kind); 50 else 51 msg = csprintf("port '%s' (%s)", name, kind); 52 53 SC_REPORT_ERROR(id, msg.c_str()); 54} 55 56} 57 58sc_port_base::sc_port_base(const char *name, int n, sc_port_policy p) : 59 sc_object(name), _maxSize(n), _size(0), finalized(false) 60{ 61 if (sc_is_running()) { 62 reportError("(E110) insert port failed", "simulation running", 63 name, kind()); 64 } 65 if (::sc_gem5::scheduler.elaborationDone()) { 66 reportError("(E110) insert port failed", "elaboration done", 67 name, kind()); 68 } 69 70 ::sc_gem5::Module *m = ::sc_gem5::currentModule(); 71 if (!m) { 72 reportError("(E100) port specified outside of module", 73 nullptr, name, kind()); 74 } else { 75 m->ports.push_back(this); 76 } 77} 78 79void 80sc_port_base::warn_unimpl(const char *func) const 81{ 82 warn("%s not implemented.\n", func); 83} 84 85int sc_port_base::maxSize() const { return _maxSize; } 86int sc_port_base::size() const { return _size; } 87 88void 89sc_port_base::bind(sc_interface &i) 90{ 91 _gem5BindInfo.push_back(new ::sc_gem5::BindInfo(&i)); 92} 93 94void 95sc_port_base::bind(sc_port_base &p) 96{ 97 _gem5BindInfo.push_back(new ::sc_gem5::BindInfo(&p)); 98} 99 100void 101sc_port_base::_gem5Finalize() 102{ 103 if (finalized) 104 return; 105 finalized = true; 106 107 for (auto &bi: _gem5BindInfo) { 108 if (bi->interface) { 109 _size++; 110 _gem5AddInterface(bi->interface); 111 } else { 112 sc_port_base *port = bi->port; 113 port->_gem5Finalize(); 114 int size = port->size(); 115 for (int i = 0; i < size; i++) { 116 _size++; 117 _gem5AddInterface(port->_gem5Interface(i)); 118 } 119 } 120 delete bi; 121 } 122 123 _gem5BindInfo.clear(); 124} 125 126} // namespace sc_core 127