src/cpu/inorder/inorder_cpu_builder.cc

   1 /*
   2  * Copyright (c) 2007 MIPS Technologies, Inc.
   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: Korey Sewell
  29  *
  30  */
  31
  32 #include <string>
  33
  34 #include "cpu/inorder/cpu.hh"
  35 #include "cpu/inorder/inorder_dyn_inst.hh"
  36 #include "cpu/inorder/pipeline_traits.hh"
  37 #include "cpu/base.hh"
  38 #include "cpu/inst_seq.hh"
  39 #include "cpu/static_inst.hh"
  40 #include "params/InOrderCPU.hh"
  41
  42 InOrderCPU *
  43 InOrderCPUParams::create()
  44 {
  45 #if FULL_SYSTEM
  46     // Full-system only supports a single thread for the moment.
  47     ThreadID actual_num_threads = 1;
  48 #else
  49     ThreadID actual_num_threads =
  50         (numThreads >= workload.size()) ? numThreads : workload.size();
  51
  52     if (workload.size() == 0) {
  53         fatal("Must specify at least one workload!");
  54     }
  55 #endif
  56
  57     numThreads = actual_num_threads;
  58
  59     instShiftAmt = 2;
  60
  61     return new InOrderCPU(this);
  62 }
  63
  64
  65