OutVcState.cc revision 11666
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 3411666Stushar@ece.gatech.edu#include "mem/ruby/network/garnet2.0/OutVcState.hh" 3511666Stushar@ece.gatech.edu 3611666Stushar@ece.gatech.edu#include "mem/ruby/system/RubySystem.hh" 3711666Stushar@ece.gatech.edu 3811666Stushar@ece.gatech.eduOutVcState::OutVcState(int id, GarnetNetwork *network_ptr) 3911666Stushar@ece.gatech.edu : m_time(0) 4011666Stushar@ece.gatech.edu{ 4111666Stushar@ece.gatech.edu m_id = id; 4211666Stushar@ece.gatech.edu m_vc_state = IDLE_; 4311666Stushar@ece.gatech.edu 4411666Stushar@ece.gatech.edu if (network_ptr->get_vnet_type(id) == DATA_VNET_) 4511666Stushar@ece.gatech.edu m_max_credit_count = network_ptr->getBuffersPerDataVC(); 4611666Stushar@ece.gatech.edu else 4711666Stushar@ece.gatech.edu m_max_credit_count = network_ptr->getBuffersPerCtrlVC(); 4811666Stushar@ece.gatech.edu 4911666Stushar@ece.gatech.edu m_credit_count = m_max_credit_count; 5011666Stushar@ece.gatech.edu assert(m_credit_count >= 1); 5111666Stushar@ece.gatech.edu} 5211666Stushar@ece.gatech.edu 5311666Stushar@ece.gatech.eduvoid 5411666Stushar@ece.gatech.eduOutVcState::increment_credit() 5511666Stushar@ece.gatech.edu{ 5611666Stushar@ece.gatech.edu m_credit_count++; 5711666Stushar@ece.gatech.edu assert(m_credit_count <= m_max_credit_count); 5811666Stushar@ece.gatech.edu} 5911666Stushar@ece.gatech.edu 6011666Stushar@ece.gatech.eduvoid 6111666Stushar@ece.gatech.eduOutVcState::decrement_credit() 6211666Stushar@ece.gatech.edu{ 6311666Stushar@ece.gatech.edu m_credit_count--; 6411666Stushar@ece.gatech.edu assert(m_credit_count >= 0); 6511666Stushar@ece.gatech.edu} 66