flitBuffer.hh revision 12492:4e76959883a6
12929Sktlim@umich.edu/* 22929Sktlim@umich.edu * Copyright (c) 2008 Princeton University 32932Sktlim@umich.edu * Copyright (c) 2016 Georgia Institute of Technology 42929Sktlim@umich.edu * All rights reserved. 52929Sktlim@umich.edu * 62929Sktlim@umich.edu * Redistribution and use in source and binary forms, with or without 72929Sktlim@umich.edu * modification, are permitted provided that the following conditions are 82929Sktlim@umich.edu * met: redistributions of source code must retain the above copyright 92929Sktlim@umich.edu * notice, this list of conditions and the following disclaimer; 102929Sktlim@umich.edu * redistributions in binary form must reproduce the above copyright 112929Sktlim@umich.edu * notice, this list of conditions and the following disclaimer in the 122929Sktlim@umich.edu * documentation and/or other materials provided with the distribution; 132929Sktlim@umich.edu * neither the name of the copyright holders nor the names of its 142929Sktlim@umich.edu * contributors may be used to endorse or promote products derived from 152929Sktlim@umich.edu * this software without specific prior written permission. 162929Sktlim@umich.edu * 172929Sktlim@umich.edu * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 182929Sktlim@umich.edu * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 192929Sktlim@umich.edu * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 202929Sktlim@umich.edu * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 212929Sktlim@umich.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 222929Sktlim@umich.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 232929Sktlim@umich.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 242929Sktlim@umich.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 252929Sktlim@umich.edu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 262929Sktlim@umich.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 272929Sktlim@umich.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 282932Sktlim@umich.edu * 292932Sktlim@umich.edu * Authors: Niket Agarwal 302932Sktlim@umich.edu * Tushar Krishna 312929Sktlim@umich.edu */ 326007Ssteve.reinhardt@amd.com 332929Sktlim@umich.edu 342929Sktlim@umich.edu#ifndef __MEM_RUBY_NETWORK_GARNET2_0_FLITBUFFER_HH__ 352929Sktlim@umich.edu#define __MEM_RUBY_NETWORK_GARNET2_0_FLITBUFFER_HH__ 362929Sktlim@umich.edu 372929Sktlim@umich.edu#include <algorithm> 382929Sktlim@umich.edu#include <iostream> 392929Sktlim@umich.edu#include <vector> 402929Sktlim@umich.edu 412929Sktlim@umich.edu#include "mem/ruby/network/garnet2.0/CommonTypes.hh" 422929Sktlim@umich.edu#include "mem/ruby/network/garnet2.0/flit.hh" 432929Sktlim@umich.edu 442929Sktlim@umich.educlass flitBuffer 452929Sktlim@umich.edu{ 462929Sktlim@umich.edu public: 476007Ssteve.reinhardt@amd.com flitBuffer(); 486007Ssteve.reinhardt@amd.com flitBuffer(int maximum_size); 496007Ssteve.reinhardt@amd.com 506007Ssteve.reinhardt@amd.com bool isReady(Cycles curTime); 516007Ssteve.reinhardt@amd.com bool isEmpty(); 526007Ssteve.reinhardt@amd.com void print(std::ostream& out) const; 536007Ssteve.reinhardt@amd.com bool isFull(); 546007Ssteve.reinhardt@amd.com void setMaxSize(int maximum); 556007Ssteve.reinhardt@amd.com int getSize() const { return m_buffer.size(); } 566007Ssteve.reinhardt@amd.com 576007Ssteve.reinhardt@amd.com flit * 586007Ssteve.reinhardt@amd.com getTopFlit() 596007Ssteve.reinhardt@amd.com { 606007Ssteve.reinhardt@amd.com flit *f = m_buffer.front(); 616007Ssteve.reinhardt@amd.com std::pop_heap(m_buffer.begin(), m_buffer.end(), flit::greater); 626007Ssteve.reinhardt@amd.com m_buffer.pop_back(); 636007Ssteve.reinhardt@amd.com return f; 646007Ssteve.reinhardt@amd.com } 656007Ssteve.reinhardt@amd.com 666007Ssteve.reinhardt@amd.com flit * 676007Ssteve.reinhardt@amd.com peekTopFlit() 686007Ssteve.reinhardt@amd.com { 696007Ssteve.reinhardt@amd.com return m_buffer.front(); 706007Ssteve.reinhardt@amd.com } 716007Ssteve.reinhardt@amd.com 726007Ssteve.reinhardt@amd.com void 736007Ssteve.reinhardt@amd.com insert(flit *flt) 746007Ssteve.reinhardt@amd.com { 756007Ssteve.reinhardt@amd.com m_buffer.push_back(flt); 762929Sktlim@umich.edu std::push_heap(m_buffer.begin(), m_buffer.end(), flit::greater); 772929Sktlim@umich.edu } 782929Sktlim@umich.edu 796007Ssteve.reinhardt@amd.com uint32_t functionalWrite(Packet *pkt); 806007Ssteve.reinhardt@amd.com 816007Ssteve.reinhardt@amd.com private: 826007Ssteve.reinhardt@amd.com std::vector<flit *> m_buffer; 836007Ssteve.reinhardt@amd.com int max_size; 846007Ssteve.reinhardt@amd.com}; 852929Sktlim@umich.edu 862929Sktlim@umich.eduinline std::ostream& 872929Sktlim@umich.eduoperator<<(std::ostream& out, const flitBuffer& obj) 882929Sktlim@umich.edu{ 892929Sktlim@umich.edu obj.print(out); 906011Ssteve.reinhardt@amd.com out << std::flush; 916007Ssteve.reinhardt@amd.com return out; 926007Ssteve.reinhardt@amd.com} 936007Ssteve.reinhardt@amd.com 946007Ssteve.reinhardt@amd.com#endif // __MEM_RUBY_NETWORK_GARNET2_0_FLITBUFFER_HH__ 956007Ssteve.reinhardt@amd.com