2 * Copyright (c) 2001-2005 The Regents of The University of Michigan
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28 * Authors: Ron Dreslinski
34 #ifndef __PHYSICAL_MEMORY_HH__
35 #define __PHYSICAL_MEMORY_HH__
37 #include "base/range.hh"
38 #include "mem/mem_object.hh"
39 #include "mem/packet.hh"
40 #include "mem/tport.hh"
41 #include "sim/eventq.hh"
46 // Functional model for a contiguous block of physical memory. (i.e. RAM)
48 class PhysicalMemory : public MemObject
50 class MemoryPort : public SimpleTimingPort
52 PhysicalMemory *memory;
56 MemoryPort(const std::string &_name, PhysicalMemory *_memory);
60 virtual Tick recvAtomic(Packet *pkt);
62 virtual void recvFunctional(Packet *pkt);
64 virtual void recvStatusChange(Status status);
66 virtual void getDeviceAddressRanges(AddrRangeList &resp,
67 AddrRangeList &snoop);
69 virtual int deviceBlockSize();
76 // prevent copying of a MainMemory object
77 PhysicalMemory(const PhysicalMemory &specmem);
78 const PhysicalMemory &operator=(const PhysicalMemory &specmem);
88 uint64_t size() { return params()->addrRange.size(); }
93 Range<Addr> addrRange;
101 const Params *params() const { return _params; }
102 PhysicalMemory(Params *p);
103 virtual ~PhysicalMemory();
106 int deviceBlockSize();
107 void getAddressRanges(AddrRangeList &resp, AddrRangeList &snoop);
108 virtual Port *getPort(const std::string &if_name, int idx = -1);
110 unsigned int drain(Event *de);
113 void doFunctionalAccess(Packet *pkt);
114 virtual Tick calculateLatency(Packet *pkt);
115 void recvStatusChange(Port::Status status);
118 virtual void serialize(std::ostream &os);
119 virtual void unserialize(Checkpoint *cp, const std::string §ion);
123 #endif //__PHYSICAL_MEMORY_HH__