src/mem/ruby/network/garnet/BaseGarnetNetwork.cc

   1 /*
   2  * Copyright (c) 2008 Princeton University
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions are
   7  * met: redistributions of source code must retain the above copyright
   8  * notice, this list of conditions and the following disclaimer;
   9  * redistributions in binary form must reproduce the above copyright
  10  * notice, this list of conditions and the following disclaimer in the
  11  * documentation and/or other materials provided with the distribution;
  12  * neither the name of the copyright holders nor the names of its
  13  * contributors may be used to endorse or promote products derived from
  14  * this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  17  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  18  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  19  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  20  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  21  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  22  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  26  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  *
  28  * Authors: Niket Agarwal
  29  */
  30
  31 #include "mem/ruby/network/BasicLink.hh"
  32 #include "mem/ruby/network/Topology.hh"
  33 #include "mem/ruby/network/garnet/BaseGarnetNetwork.hh"
  34
  35 BaseGarnetNetwork::BaseGarnetNetwork(const Params *p)
  36     : Network(p)
  37 {
  38     m_ni_flit_size = p->ni_flit_size;
  39     m_number_of_pipe_stages = p->number_of_pipe_stages;
  40     m_vcs_per_class = p->vcs_per_class;
  41     m_buffers_per_data_vc = p->buffers_per_data_vc;
  42     m_buffers_per_ctrl_vc = p->buffers_per_ctrl_vc;
  43
  44     // Currently Garnet only supports uniform bandwidth for all
  45     // links and network interfaces.
  46     for (std::vector<BasicExtLink*>::const_iterator i =
  47              m_topology_ptr->params()->ext_links.begin();
  48          i != m_topology_ptr->params()->ext_links.end(); ++i) {
  49         BasicExtLink* ext_link = (*i);
  50         if (ext_link->params()->bandwidth_factor != m_ni_flit_size) {
  51             fatal("Garnet only supports uniform bw across all links and NIs\n");
  52         }
  53     }
  54     for (std::vector<BasicIntLink*>::const_iterator i =
  55              m_topology_ptr->params()->int_links.begin();
  56          i != m_topology_ptr->params()->int_links.end(); ++i) {
  57         BasicIntLink* int_link = (*i);
  58         if (int_link->params()->bandwidth_factor != m_ni_flit_size) {
  59             fatal("Garnet only supports uniform bw across all links and NIs\n");
  60         }
  61     }
  62 }
  63
  64 void
  65 BaseGarnetNetwork::init()
  66 {
  67     Network::init();
  68 }