111666Stushar@ece.gatech.edu/* 211666Stushar@ece.gatech.edu * Copyright (c) 2008 Princeton University 311666Stushar@ece.gatech.edu * Copyright (c) 2016 Georgia Institute of Technology 411666Stushar@ece.gatech.edu * All rights reserved. 511666Stushar@ece.gatech.edu * 611666Stushar@ece.gatech.edu * Redistribution and use in source and binary forms, with or without 711666Stushar@ece.gatech.edu * modification, are permitted provided that the following conditions are 811666Stushar@ece.gatech.edu * met: redistributions of source code must retain the above copyright 911666Stushar@ece.gatech.edu * notice, this list of conditions and the following disclaimer; 1011666Stushar@ece.gatech.edu * redistributions in binary form must reproduce the above copyright 1111666Stushar@ece.gatech.edu * notice, this list of conditions and the following disclaimer in the 1211666Stushar@ece.gatech.edu * documentation and/or other materials provided with the distribution; 1311666Stushar@ece.gatech.edu * neither the name of the copyright holders nor the names of its 1411666Stushar@ece.gatech.edu * contributors may be used to endorse or promote products derived from 1511666Stushar@ece.gatech.edu * this software without specific prior written permission. 1611666Stushar@ece.gatech.edu * 1711666Stushar@ece.gatech.edu * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1811666Stushar@ece.gatech.edu * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1911666Stushar@ece.gatech.edu * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 2011666Stushar@ece.gatech.edu * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 2111666Stushar@ece.gatech.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2211666Stushar@ece.gatech.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2311666Stushar@ece.gatech.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2411666Stushar@ece.gatech.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2511666Stushar@ece.gatech.edu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2611666Stushar@ece.gatech.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2711666Stushar@ece.gatech.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2811666Stushar@ece.gatech.edu * 2911666Stushar@ece.gatech.edu * Authors: Niket Agarwal 3011666Stushar@ece.gatech.edu * Tushar Krishna 3111666Stushar@ece.gatech.edu */ 3211666Stushar@ece.gatech.edu 3311666Stushar@ece.gatech.edu 3412492Sodanrc@yahoo.com.br#ifndef __MEM_RUBY_NETWORK_GARNET2_0_OUTPUTUNIT_HH__ 3512492Sodanrc@yahoo.com.br#define __MEM_RUBY_NETWORK_GARNET2_0_OUTPUTUNIT_HH__ 3611666Stushar@ece.gatech.edu 3711666Stushar@ece.gatech.edu#include <iostream> 3811666Stushar@ece.gatech.edu#include <vector> 3911666Stushar@ece.gatech.edu 4011666Stushar@ece.gatech.edu#include "mem/ruby/common/Consumer.hh" 4111666Stushar@ece.gatech.edu#include "mem/ruby/network/garnet2.0/CommonTypes.hh" 4211666Stushar@ece.gatech.edu#include "mem/ruby/network/garnet2.0/CreditLink.hh" 4311666Stushar@ece.gatech.edu#include "mem/ruby/network/garnet2.0/NetworkLink.hh" 4411666Stushar@ece.gatech.edu#include "mem/ruby/network/garnet2.0/OutVcState.hh" 4511666Stushar@ece.gatech.edu#include "mem/ruby/network/garnet2.0/Router.hh" 4611666Stushar@ece.gatech.edu#include "mem/ruby/network/garnet2.0/flitBuffer.hh" 4711666Stushar@ece.gatech.edu 4811666Stushar@ece.gatech.educlass OutputUnit : public Consumer 4911666Stushar@ece.gatech.edu{ 5011666Stushar@ece.gatech.edu public: 5111666Stushar@ece.gatech.edu OutputUnit(int id, PortDirection direction, Router *router); 5211666Stushar@ece.gatech.edu ~OutputUnit(); 5311666Stushar@ece.gatech.edu void set_out_link(NetworkLink *link); 5411666Stushar@ece.gatech.edu void set_credit_link(CreditLink *credit_link); 5511666Stushar@ece.gatech.edu void wakeup(); 5611666Stushar@ece.gatech.edu flitBuffer* getOutQueue(); 5711666Stushar@ece.gatech.edu void print(std::ostream& out) const {}; 5811666Stushar@ece.gatech.edu void decrement_credit(int out_vc); 5911666Stushar@ece.gatech.edu void increment_credit(int out_vc); 6011666Stushar@ece.gatech.edu bool has_credit(int out_vc); 6111666Stushar@ece.gatech.edu bool has_free_vc(int vnet); 6211666Stushar@ece.gatech.edu int select_free_vc(int vnet); 6311666Stushar@ece.gatech.edu 6411666Stushar@ece.gatech.edu inline PortDirection get_direction() { return m_direction; } 6511666Stushar@ece.gatech.edu 6611666Stushar@ece.gatech.edu int 6711666Stushar@ece.gatech.edu get_credit_count(int vc) 6811666Stushar@ece.gatech.edu { 6911666Stushar@ece.gatech.edu return m_outvc_state[vc]->get_credit_count(); 7011666Stushar@ece.gatech.edu } 7111666Stushar@ece.gatech.edu 7211666Stushar@ece.gatech.edu inline int 7311666Stushar@ece.gatech.edu get_outlink_id() 7411666Stushar@ece.gatech.edu { 7511666Stushar@ece.gatech.edu return m_out_link->get_id(); 7611666Stushar@ece.gatech.edu } 7711666Stushar@ece.gatech.edu 7811666Stushar@ece.gatech.edu inline void 7911666Stushar@ece.gatech.edu set_vc_state(VC_state_type state, int vc, Cycles curTime) 8011666Stushar@ece.gatech.edu { 8111666Stushar@ece.gatech.edu m_outvc_state[vc]->setState(state, curTime); 8211666Stushar@ece.gatech.edu } 8311666Stushar@ece.gatech.edu 8411666Stushar@ece.gatech.edu inline bool 8511666Stushar@ece.gatech.edu is_vc_idle(int vc, Cycles curTime) 8611666Stushar@ece.gatech.edu { 8711666Stushar@ece.gatech.edu return (m_outvc_state[vc]->isInState(IDLE_, curTime)); 8811666Stushar@ece.gatech.edu } 8911666Stushar@ece.gatech.edu 9011666Stushar@ece.gatech.edu inline void 9111666Stushar@ece.gatech.edu insert_flit(flit *t_flit) 9211666Stushar@ece.gatech.edu { 9311666Stushar@ece.gatech.edu m_out_buffer->insert(t_flit); 9411666Stushar@ece.gatech.edu m_out_link->scheduleEventAbsolute(m_router->clockEdge(Cycles(1))); 9511666Stushar@ece.gatech.edu } 9611666Stushar@ece.gatech.edu 9711666Stushar@ece.gatech.edu uint32_t functionalWrite(Packet *pkt); 9811666Stushar@ece.gatech.edu 9911666Stushar@ece.gatech.edu private: 10011666Stushar@ece.gatech.edu int m_id; 10111666Stushar@ece.gatech.edu PortDirection m_direction; 10211666Stushar@ece.gatech.edu int m_num_vcs; 10311666Stushar@ece.gatech.edu int m_vc_per_vnet; 10411666Stushar@ece.gatech.edu Router *m_router; 10511666Stushar@ece.gatech.edu NetworkLink *m_out_link; 10611666Stushar@ece.gatech.edu CreditLink *m_credit_link; 10711666Stushar@ece.gatech.edu 10811666Stushar@ece.gatech.edu flitBuffer *m_out_buffer; // This is for the network link to consume 10911666Stushar@ece.gatech.edu std::vector<OutVcState *> m_outvc_state; // vc state of downstream router 11011666Stushar@ece.gatech.edu 11111666Stushar@ece.gatech.edu}; 11211666Stushar@ece.gatech.edu 11312492Sodanrc@yahoo.com.br#endif // __MEM_RUBY_NETWORK_GARNET2_0_OUTPUTUNIT_HH__ 114