port.hh (5489:94a7bb476fca) port.hh (5494:85c8d296c1cb)
1/*
2 * Copyright (c) 2002-2005 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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82 memory objects. */
83 Port *peer;
84
85 /** A pointer to the MemObject that owns this port. This may not be set. */
86 MemObject *owner;
87
88 public:
89
1/*
2 * Copyright (c) 2002-2005 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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82 memory objects. */
83 Port *peer;
84
85 /** A pointer to the MemObject that owns this port. This may not be set. */
86 MemObject *owner;
87
88 public:
89
90 Port();
91
90 /**
91 * Constructor.
92 *
93 * @param _name Port name for DPRINTF output. Should include name
94 * of memory system object to which the port belongs.
95 * @param _owner Pointer to the MemObject that owns this port.
92 /**
93 * Constructor.
94 *
95 * @param _name Port name for DPRINTF output. Should include name
96 * of memory system object to which the port belongs.
97 * @param _owner Pointer to the MemObject that owns this port.
98 * Will not necessarily be set.
96 */
99 */
97 Port(const std::string &_name, MemObject *_owner, Port *_peer = NULL);
100 Port(const std::string &_name, MemObject *_owner = NULL);
98
99 /** Return port name (for DPRINTF). */
100 const std::string &name() const { return portName; }
101
102 virtual ~Port();
103
104 // mey be better to use subclasses & RTTI?
105 /** Holds the ports status. Currently just that a range recomputation needs
106 * to be done. */
107 enum Status {
108 RangeChange
109 };
110
101
102 /** Return port name (for DPRINTF). */
103 const std::string &name() const { return portName; }
104
105 virtual ~Port();
106
107 // mey be better to use subclasses & RTTI?
108 /** Holds the ports status. Currently just that a range recomputation needs
109 * to be done. */
110 enum Status {
111 RangeChange
112 };
113
114 void setName(const std::string &name)
115 { portName = name; }
116
111 /** Function to set the pointer for the peer port. */
112 virtual void setPeer(Port *port);
113
114 /** Function to get the pointer to the peer port. */
115 Port *getPeer() { return peer; }
116
117 /** Function to set the pointer for the peer port. */
118 virtual void setPeer(Port *port);
119
120 /** Function to get the pointer to the peer port. */
121 Port *getPeer() { return peer; }
122
123 /** Function to set the owner of this port. */
124 void setOwner(MemObject *_owner) { owner = _owner; }
125
117 /** Function to return the owner of this port. */
118 MemObject *getOwner() { return owner; }
119
126 /** Function to return the owner of this port. */
127 MemObject *getOwner() { return owner; }
128
120 /** Notify my peer port that I'm disconnecting (by calling its
121 * disconnect() method) so it can clean up. */
122 void disconnectFromPeer();
129 /** Inform the peer port to delete itself and notify it's owner about it's
130 * demise. */
131 void removeConn();
123
124 virtual bool isDefaultPort() const { return false; }
125
126 bool isConnected() { return peer && !peer->isDefaultPort(); }
127
128 protected:
129
130 /** These functions are protected because they should only be

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240 */
241 void printAddr(Addr a);
242
243 private:
244
245 /** Internal helper function for read/writeBlob().
246 */
247 void blobHelper(Addr addr, uint8_t *p, int size, MemCmd cmd);
132
133 virtual bool isDefaultPort() const { return false; }
134
135 bool isConnected() { return peer && !peer->isDefaultPort(); }
136
137 protected:
138
139 /** These functions are protected because they should only be

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249 */
250 void printAddr(Addr a);
251
252 private:
253
254 /** Internal helper function for read/writeBlob().
255 */
256 void blobHelper(Addr addr, uint8_t *p, int size, MemCmd cmd);
248
249 /** Receive notification that my peer is disconnecting and clean
250 * up (potentially deleting myself in the process). Should be
251 * called only from peer's disconnectFromPeer(). */
252 void disconnect();
253};
254
255/** A simple functional port that is only meant for one way communication to
256 * physical memory. It is only meant to be used to load data into memory before
257 * the simulation begins.
258 */
259
260class FunctionalPort : public Port

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258
259/** A simple functional port that is only meant for one way communication to
260 * physical memory. It is only meant to be used to load data into memory before
261 * the simulation begins.
262 */
263
264class FunctionalPort : public Port

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