src/mem/ruby/system/VIPERCoalescer.hh

   1 /*
   2  * Copyright (c) 2013-2015 Advanced Micro Devices, Inc.
   3  * All rights reserved.
   4  *
   5  * For use for simulation and test purposes only
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright notice,
  11  * this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright notice,
  14  * this list of conditions and the following disclaimer in the documentation
  15  * and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of the copyright holder nor the names of its
  18  * contributors may be used to endorse or promote products derived from this
  19  * software without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  22  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  25  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  31  * POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #ifndef __MEM_RUBY_SYSTEM_VIPERCOALESCER_HH__
  35 #define __MEM_RUBY_SYSTEM_VIPERCOALESCER_HH__
  36
  37 #include <iostream>
  38
  39 #include "mem/ruby/common/Address.hh"
  40 #include "mem/ruby/common/Consumer.hh"
  41 #include "mem/ruby/protocol/PrefetchBit.hh"
  42 #include "mem/ruby/protocol/RubyAccessMode.hh"
  43 #include "mem/ruby/protocol/RubyRequestType.hh"
  44 #include "mem/ruby/system/GPUCoalescer.hh"
  45 #include "mem/ruby/system/RubyPort.hh"
  46
  47 class DataBlock;
  48 class CacheMsg;
  49 class MachineID;
  50 class CacheMemory;
  51
  52 class VIPERCoalescerParams;
  53
  54 class VIPERCoalescer : public GPUCoalescer
  55 {
  56   public:
  57     typedef VIPERCoalescerParams Params;
  58     VIPERCoalescer(const Params *);
  59     ~VIPERCoalescer();
  60
  61     void issueMemSyncRequest(PacketPtr pkt) override;
  62     void issueRequest(CoalescedRequest* crequest) override;
  63     void wbCallback(Addr address);
  64     void invCallback(Addr address);
  65     RequestStatus makeRequest(PacketPtr pkt) override;
  66   private:
  67     void invL1();
  68     void wbL1();
  69     void invwbL1();
  70     uint64_t m_outstanding_inv;
  71     uint64_t m_outstanding_wb;
  72     uint64_t m_max_inv_per_cycle;
  73     uint64_t m_max_wb_per_cycle;
  74 };
  75 #endif //__MEM_RUBY_SYSTEM_VIPERCOALESCER_HH__