PerfectSwitch.hh revision 7002
16145Snate@binkert.org 26145Snate@binkert.org/* 36145Snate@binkert.org * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood 46145Snate@binkert.org * All rights reserved. 56145Snate@binkert.org * 66145Snate@binkert.org * Redistribution and use in source and binary forms, with or without 76145Snate@binkert.org * modification, are permitted provided that the following conditions are 86145Snate@binkert.org * met: redistributions of source code must retain the above copyright 96145Snate@binkert.org * notice, this list of conditions and the following disclaimer; 106145Snate@binkert.org * redistributions in binary form must reproduce the above copyright 116145Snate@binkert.org * notice, this list of conditions and the following disclaimer in the 126145Snate@binkert.org * documentation and/or other materials provided with the distribution; 136145Snate@binkert.org * neither the name of the copyright holders nor the names of its 146145Snate@binkert.org * contributors may be used to endorse or promote products derived from 156145Snate@binkert.org * this software without specific prior written permission. 166145Snate@binkert.org * 176145Snate@binkert.org * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 186145Snate@binkert.org * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 196145Snate@binkert.org * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 206145Snate@binkert.org * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 216145Snate@binkert.org * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 226145Snate@binkert.org * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 236145Snate@binkert.org * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 246145Snate@binkert.org * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 256145Snate@binkert.org * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 266145Snate@binkert.org * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 276145Snate@binkert.org * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 286145Snate@binkert.org */ 296145Snate@binkert.org 306145Snate@binkert.org/* 316145Snate@binkert.org * $Id$ 326145Snate@binkert.org * 336145Snate@binkert.org * Description: Perfect switch, of course it is perfect and no latency or what 346145Snate@binkert.org * so ever. Every cycle it is woke up and perform all the 356145Snate@binkert.org * necessary routings that must be done. Note, this switch also 366145Snate@binkert.org * has number of input ports/output ports and has a routing table 376145Snate@binkert.org * as well. 386145Snate@binkert.org * 396145Snate@binkert.org */ 406145Snate@binkert.org 416145Snate@binkert.org#ifndef PerfectSwitch_H 426145Snate@binkert.org#define PerfectSwitch_H 436145Snate@binkert.org 447002Snate@binkert.org#include <iostream> 457002Snate@binkert.org 466154Snate@binkert.org#include "mem/ruby/common/Global.hh" 476154Snate@binkert.org#include "mem/gems_common/Vector.hh" 486154Snate@binkert.org#include "mem/ruby/common/Consumer.hh" 496154Snate@binkert.org#include "mem/ruby/system/NodeID.hh" 506145Snate@binkert.org 516145Snate@binkert.orgclass MessageBuffer; 526145Snate@binkert.orgclass NetDest; 536145Snate@binkert.orgclass SimpleNetwork; 546145Snate@binkert.org 556145Snate@binkert.orgclass LinkOrder { 566145Snate@binkert.orgpublic: 576145Snate@binkert.org int m_link; 586145Snate@binkert.org int m_value; 596145Snate@binkert.org}; 606145Snate@binkert.org 616145Snate@binkert.orgclass PerfectSwitch : public Consumer { 626145Snate@binkert.orgpublic: 636145Snate@binkert.org // Constructors 646145Snate@binkert.org 656145Snate@binkert.org // constructor specifying the number of ports 666145Snate@binkert.org PerfectSwitch(SwitchID sid, SimpleNetwork* network_ptr); 676145Snate@binkert.org void addInPort(const Vector<MessageBuffer*>& in); 686145Snate@binkert.org void addOutPort(const Vector<MessageBuffer*>& out, const NetDest& routing_table_entry); 696145Snate@binkert.org void clearRoutingTables(); 706145Snate@binkert.org void clearBuffers(); 716145Snate@binkert.org void reconfigureOutPort(const NetDest& routing_table_entry); 726145Snate@binkert.org int getInLinks() const { return m_in.size(); } 736145Snate@binkert.org int getOutLinks() const { return m_out.size(); } 746145Snate@binkert.org 756145Snate@binkert.org // Destructor 766145Snate@binkert.org ~PerfectSwitch(); 776145Snate@binkert.org 786145Snate@binkert.org // Public Methods 796145Snate@binkert.org void wakeup(); 806145Snate@binkert.org 817002Snate@binkert.org void printStats(std::ostream& out) const; 826145Snate@binkert.org void clearStats(); 837002Snate@binkert.org void printConfig(std::ostream& out) const; 846145Snate@binkert.org 857002Snate@binkert.org void print(std::ostream& out) const; 866145Snate@binkert.orgprivate: 876145Snate@binkert.org 886145Snate@binkert.org // Private copy constructor and assignment operator 896145Snate@binkert.org PerfectSwitch(const PerfectSwitch& obj); 906145Snate@binkert.org PerfectSwitch& operator=(const PerfectSwitch& obj); 916145Snate@binkert.org 926145Snate@binkert.org // Data Members (m_ prefix) 936145Snate@binkert.org SwitchID m_switch_id; 946145Snate@binkert.org 956145Snate@binkert.org // vector of queues from the components 966145Snate@binkert.org Vector<Vector<MessageBuffer*> > m_in; 976145Snate@binkert.org Vector<Vector<MessageBuffer*> > m_out; 986145Snate@binkert.org Vector<NetDest> m_routing_table; 996145Snate@binkert.org Vector<LinkOrder> m_link_order; 1006145Snate@binkert.org int m_virtual_networks; 1016145Snate@binkert.org int m_round_robin_start; 1026145Snate@binkert.org int m_wakeups_wo_switch; 1036145Snate@binkert.org SimpleNetwork* m_network_ptr; 1046145Snate@binkert.org}; 1056145Snate@binkert.org 1066145Snate@binkert.org// Output operator declaration 1077002Snate@binkert.orgstd::ostream& operator<<(std::ostream& out, const PerfectSwitch& obj); 1086145Snate@binkert.org 1096145Snate@binkert.org// ******************* Definitions ******************* 1106145Snate@binkert.org 1116145Snate@binkert.org// Output operator definition 1126145Snate@binkert.orgextern inline 1137002Snate@binkert.orgstd::ostream& operator<<(std::ostream& out, const PerfectSwitch& obj) 1146145Snate@binkert.org{ 1156145Snate@binkert.org obj.print(out); 1167002Snate@binkert.org out << std::flush; 1176145Snate@binkert.org return out; 1186145Snate@binkert.org} 1196145Snate@binkert.org 1206145Snate@binkert.org#endif //PerfectSwitch_H 121