src/cpu/inorder/resources/graduation_unit.hh

   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 #ifndef __CPU_INORDER_GRAD_UNIT_HH__
  33 #define __CPU_INORDER_GRAD_UNIT_HH__
  34
  35 #include <vector>
  36 #include <list>
  37 #include <string>
  38
  39 #include "cpu/inorder/resource.hh"
  40 #include "cpu/inorder/inorder_dyn_inst.hh"
  41 #include "cpu/inorder/pipeline_traits.hh"
  42 #include "cpu/inorder/cpu.hh"
  43
  44 class GraduationUnit : public Resource {
  45   public:
  46     typedef ThePipeline::DynInstPtr DynInstPtr;
  47
  48     enum Command {
  49         GraduateInst
  50     };
  51
  52   public:
  53     GraduationUnit(std::string res_name, int res_id, int res_width,
  54               int res_latency, InOrderCPU *_cpu, ThePipeline::Params *params);
  55     virtual ~GraduationUnit() {}
  56
  57     virtual void execute(int slot_num);
  58
  59   protected:
  60     Tick lastCycleGrad;
  61     int numCycleGrad;
  62
  63     bool *nonSpecInstActive[ThePipeline::MaxThreads];
  64
  65     InstSeqNum *nonSpecSeqNum[ThePipeline::MaxThreads];
  66
  67     /** @todo: Add Resource Stats Here */
  68 };
  69
  70 #endif //__CPU_INORDER_GRAD_UNIT_HH__