1/*
2 * Copyright (c) 2001-2005 The Regents of The University of Michigan
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;

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32 */
33
34#ifndef __PHYSICAL_MEMORY_HH__
35#define __PHYSICAL_MEMORY_HH__
36
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"
42#include <map>
43#include <string>
44
45//
46// Functional model for a contiguous block of physical memory. (i.e. RAM)
47//
48class PhysicalMemory : public MemObject
49{
50 class MemoryPort : public SimpleTimingPort
51 {
52 PhysicalMemory *memory;
53
54 public:
55
56 MemoryPort(const std::string &_name, PhysicalMemory *_memory);
57
58 protected:

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69 AddrRangeList &snoop);
70
71 virtual int deviceBlockSize();
72 };
73
74 int numPorts;
75
76
77 private:
78 // prevent copying of a MainMemory object
79 PhysicalMemory(const PhysicalMemory &specmem);
80 const PhysicalMemory &operator=(const PhysicalMemory &specmem);
81
82 protected:
83 Addr base_addr;
84 Addr pmem_size;

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95 PhysicalMemory(const std::string &n, Tick latency);
96 virtual ~PhysicalMemory();
97
98 public:
99 int deviceBlockSize();
100 void getAddressRanges(AddrRangeList &resp, AddrRangeList &snoop);
101 virtual Port *getPort(const std::string &if_name, int idx = -1);
102 void virtual init();
103 unsigned int drain(Event *de);
104
105 private:
106 Tick doFunctionalAccess(Packet *pkt);
107
108 void recvStatusChange(Port::Status status);
109
110 public:
111 virtual void serialize(std::ostream &os);
112 virtual void unserialize(Checkpoint *cp, const std::string &section);
113
114};
115
116#endif //__PHYSICAL_MEMORY_HH__