/*
 * Copyright (c) 1999-2005 Mark D. Hill and David A. Wood
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met: redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer;
 * redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution;
 * neither the name of the copyright holders nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

// External Types

//
// **PLEASE NOTE!**  When adding objects to this file you must also add a line
// in the src/mem/ruby/SConscript file.  Otherwise the external object's .hh 
// file will not be copied to the protocol directory and you will encounter a 
// undefined declaration error.
//

external_type(MessageBuffer, buffer="yes", inport="yes", outport="yes");
external_type(OutPort, primitive="yes");
external_type(Scalar, primitive="yes");

structure(InPort, external = "yes", primitive="yes") {
  bool isReady();
  Cycles dequeue();
  void recycle();
  bool isEmpty();
}

external_type(NodeID, default="0", primitive="yes");
external_type(MachineID);

structure (Set, external = "yes", non_obj="yes") {
  void setSize(int);
  void add(NodeID);
  void addSet(Set);
  void remove(NodeID);
  void removeSet(Set);
  void broadcast();
  void addRandom();
  void clear();
  int count();
  bool isElement(NodeID);
  bool isEqual(Set);
  bool isSuperset(Set);
  bool intersectionIsEmpty(Set);
  NodeID smallestElement();
}

structure (NetDest, external = "yes", non_obj="yes") {
  void setSize(int);
  void setSize(int, int);
  void add(NodeID);
  void add(MachineID);
  void addSet(Set);
  void addNetDest(NetDest);
  void setNetDest(MachineType, Set);
  void remove(NodeID);
  void remove(MachineID);
  void removeSet(Set);
  void removeNetDest(NetDest);
  void broadcast();
  void broadcast(MachineType);
  void addRandom();
  void clear();
  Set toSet();
  int count();
  bool isElement(NodeID);
  bool isElement(MachineID);
  bool isSuperset(Set);
  bool isSuperset(NetDest);
  bool isEmpty();
  bool intersectionIsEmpty(Set);
  bool intersectionIsEmpty(NetDest);
  MachineID smallestElement(MachineType);
}

structure (Sequencer, external = "yes") {
  void readCallback(Address, DataBlock);
  void readCallback(Address, DataBlock, bool);
  void readCallback(Address, DataBlock, bool, MachineType);
  void readCallback(Address, DataBlock, bool, MachineType,
                    Cycles, Cycles, Cycles);

  void writeCallback(Address, DataBlock);
  void writeCallback(Address, DataBlock, bool);
  void writeCallback(Address, DataBlock, bool, MachineType);
  void writeCallback(Address, DataBlock, bool, MachineType,
                     Cycles, Cycles, Cycles);

  void checkCoherence(Address);
  void evictionCallback(Address);
  void recordRequestType(SequencerRequestType);
  bool checkResourceAvailable(CacheResourceType, Address);
  void invalidateSC(Address);
}

structure(RubyRequest, desc="...", interface="Message", external="yes") {
  Address LineAddress,       desc="Line address for this request";
  Address PhysicalAddress,   desc="Physical address for this request";
  RubyRequestType Type,      desc="Type of request (LD, ST, etc)";
  Address ProgramCounter,    desc="Program counter of the instruction that caused the miss";
  RubyAccessMode AccessMode, desc="user/supervisor access type";
  int Size,                  desc="size in bytes of access";
  PrefetchBit Prefetch,      desc="Is this a prefetch request";
  int contextId,             desc="this goes away but must be replace with Nilay";
}

structure(AbstractEntry, primitive="yes", external = "yes") {
  void changePermission(AccessPermission);
}

structure (DirectoryMemory, external = "yes") {
  AbstractEntry allocate(Address, AbstractEntry);
  AbstractEntry lookup(Address);
  bool isPresent(Address);
  void invalidateBlock(Address);
  void recordRequestType(DirectoryRequestType);
}

structure(AbstractCacheEntry, primitive="yes", external = "yes") {
  void changePermission(AccessPermission);
}

structure (CacheMemory, external = "yes") {
  bool cacheAvail(Address);
  Address cacheProbe(Address);
  AbstractCacheEntry allocate(Address, AbstractCacheEntry);
  void allocateVoid(Address, AbstractCacheEntry);
  void deallocate(Address);
  AbstractCacheEntry lookup(Address);
  bool isTagPresent(Address);
  void setMRU(Address);
  void recordRequestType(CacheRequestType);
  bool checkResourceAvailable(CacheResourceType, Address);

  Scalar demand_misses;
  Scalar demand_hits;
}

structure (WireBuffer, inport="yes", outport="yes", external = "yes") {

}

structure (MemoryControl, inport="yes", outport="yes", external = "yes") {
  void recordRequestType(CacheRequestType);
}

structure (DMASequencer, external = "yes") {
  void ackCallback();
  void dataCallback(DataBlock);
  void recordRequestType(CacheRequestType);
}

structure (TimerTable, inport="yes", external = "yes") {
  bool isReady();
  Address readyAddress();
  void set(Address, Cycles);
  void unset(Address);
  bool isSet(Address);
}

structure (GenericBloomFilter, external = "yes") {
  void clear(int);
  void increment(Address, int);
  void decrement(Address, int);
  void set(Address, int);
  void unset(Address, int);

  bool isSet(Address, int);
  int getCount(Address, int);
}

structure (Prefetcher, external = "yes") {
    void observeMiss(Address, RubyRequestType);
    void observePfHit(Address);
    void observePfMiss(Address);
}