addr_mapper.hh

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/*
 * Copyright (c) 2012 ARM Limited
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 *
 * The license below extends only to copyright in the software and shall
 * not be construed as granting a license to any other intellectual
 * property including but not limited to intellectual property relating
 * to a hardware implementation of the functionality of the software
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 * modified or unmodified, in source code or in binary form.
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#ifndef __MEM_ADDR_MAPPER_HH__
#define __MEM_ADDR_MAPPER_HH__
 
#include "mem/port.hh"
#include "params/AddrMapper.hh"
#include "params/RangeAddrMapper.hh"
#include "sim/sim_object.hh"
 
class AddrMapper : public SimObject
{
 
  public:
 
    AddrMapper(const AddrMapperParams* params);
 
    virtual ~AddrMapper() { }
 
    Port &getPort(const std::string &if_name,
                  PortID idx=InvalidPortID) override;
 
    void init() override;
 
  protected:
 
    virtual Addr remapAddr(Addr addr) const = 0;
 
    class AddrMapperSenderState : public Packet::SenderState
    {
 
      public:
 
        AddrMapperSenderState(Addr _origAddr) : origAddr(_origAddr)
        { }
 
        ~AddrMapperSenderState() { }
 
        Addr origAddr;
 
    };
 
    class MapperRequestPort : public RequestPort
    {
 
      public:
 
        MapperRequestPort(const std::string& _name, AddrMapper& _mapper)
            : RequestPort(_name, &_mapper), mapper(_mapper)
        { }
 
      protected:
 
        void recvFunctionalSnoop(PacketPtr pkt)
        {
            mapper.recvFunctionalSnoop(pkt);
        }
 
        Tick recvAtomicSnoop(PacketPtr pkt)
        {
            return mapper.recvAtomicSnoop(pkt);
        }
 
        bool recvTimingResp(PacketPtr pkt)
        {
            return mapper.recvTimingResp(pkt);
        }
 
        void recvTimingSnoopReq(PacketPtr pkt)
        {
            mapper.recvTimingSnoopReq(pkt);
        }
 
        void recvRangeChange()
        {
            mapper.recvRangeChange();
        }
 
        bool isSnooping() const
        {
            return mapper.isSnooping();
        }
 
        void recvReqRetry()
        {
            mapper.recvReqRetry();
        }
 
      private:
 
        AddrMapper& mapper;
 
    };
 
    MapperRequestPort memSidePort;
 
    class MapperResponsePort : public ResponsePort
    {
 
      public:
 
        MapperResponsePort(const std::string& _name, AddrMapper& _mapper)
            : ResponsePort(_name, &_mapper), mapper(_mapper)
        { }
 
      protected:
 
        void recvFunctional(PacketPtr pkt)
        {
            mapper.recvFunctional(pkt);
        }
 
        Tick recvAtomic(PacketPtr pkt)
        {
            return mapper.recvAtomic(pkt);
        }
 
        bool recvTimingReq(PacketPtr pkt)
        {
            return mapper.recvTimingReq(pkt);
        }
 
        bool recvTimingSnoopResp(PacketPtr pkt)
        {
            return mapper.recvTimingSnoopResp(pkt);
        }
 
        AddrRangeList getAddrRanges() const
        {
            return mapper.getAddrRanges();
        }
 
        void recvRespRetry()
        {
            mapper.recvRespRetry();
        }
 
      private:
 
        AddrMapper& mapper;
 
    };
 
    MapperResponsePort cpuSidePort;
 
    void recvFunctional(PacketPtr pkt);
 
    void recvFunctionalSnoop(PacketPtr pkt);
 
    Tick recvAtomic(PacketPtr pkt);
 
    Tick recvAtomicSnoop(PacketPtr pkt);
 
    bool recvTimingReq(PacketPtr pkt);
 
    bool recvTimingResp(PacketPtr pkt);
 
    void recvTimingSnoopReq(PacketPtr pkt);
 
    bool recvTimingSnoopResp(PacketPtr pkt);
 
    virtual AddrRangeList getAddrRanges() const = 0;
 
    bool isSnooping() const;
 
    void recvReqRetry();
 
    void recvRespRetry();
 
    void recvRangeChange();
};
 
class RangeAddrMapper : public AddrMapper
{
 
  public:
 
    RangeAddrMapper(const RangeAddrMapperParams* p);
 
    ~RangeAddrMapper() { }
 
    AddrRangeList getAddrRanges() const;
 
  protected:
 
    std::vector<AddrRange> originalRanges;
 
    std::vector<AddrRange> remappedRanges;
 
    Addr remapAddr(Addr addr) const;
 
};
 
#endif //__MEM_ADDR_MAPPER_HH__