qport.hh (8914:8c3bd7bea667) qport.hh (8922:17f037ad8918)
1/*
2 * Copyright (c) 2012 ARM Limited
3 * All rights reserved.
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software

--- 42 unchanged lines hidden (view full) ---

51/**
52 * A queued port is a port that has an infinite queue for outgoing
53 * packets and thus decouples the module that wants to send
54 * request/responses from the flow control (retry mechanism) of the
55 * port. A queued port can be used by both a master and a slave. The
56 * queue is a parameter to allow tailoring of the queue implementation
57 * (used in the cache).
58 */
1/*
2 * Copyright (c) 2012 ARM Limited
3 * All rights reserved.
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software

--- 42 unchanged lines hidden (view full) ---

51/**
52 * A queued port is a port that has an infinite queue for outgoing
53 * packets and thus decouples the module that wants to send
54 * request/responses from the flow control (retry mechanism) of the
55 * port. A queued port can be used by both a master and a slave. The
56 * queue is a parameter to allow tailoring of the queue implementation
57 * (used in the cache).
58 */
59class QueuedPort : public Port
59class QueuedSlavePort : public SlavePort
60{
61
62 protected:
63
64 /** Packet queue used to store outgoing requests and responses. */
65 PacketQueue &queue;
66
67 /** This function is notification that the device should attempt to send a
68 * packet again. */
69 virtual void recvRetry() { queue.retry(); }
70
60{
61
62 protected:
63
64 /** Packet queue used to store outgoing requests and responses. */
65 PacketQueue &queue;
66
67 /** This function is notification that the device should attempt to send a
68 * packet again. */
69 virtual void recvRetry() { queue.retry(); }
70
71 virtual void recvRangeChange() { }
71 public:
72
72
73 /**
74 * Create a QueuedPort with a given name, owner, and a supplied
75 * implementation of a packet queue. The external definition of
76 * the queue enables e.g. the cache to implement a specific queue
77 * behaviuor in a subclass, and provide the latter to the
78 * QueuePort constructor.
79 */
80 QueuedSlavePort(const std::string& name, MemObject* owner,
81 PacketQueue &queue) :
82 SlavePort(name, owner), queue(queue)
83 { }
84
85 virtual ~QueuedSlavePort() { }
86
87 /** Check the list of buffered packets against the supplied
88 * functional request. */
89 bool checkFunctional(PacketPtr pkt) { return queue.checkFunctional(pkt); }
90
91 /**
92 * Hook for draining the queued port.
93 *
94 * @param de an event which is used to signal back to the caller
95 * @returns a number indicating how many times process will be called
96 */
97 unsigned int drain(Event *de) { return queue.drain(de); }
98};
99
100class QueuedMasterPort : public MasterPort
101{
102
103 protected:
104
105 /** Packet queue used to store outgoing requests and responses. */
106 PacketQueue &queue;
107
108 /** This function is notification that the device should attempt to send a
109 * packet again. */
110 virtual void recvRetry() { queue.retry(); }
111
73 public:
74
75 /**
76 * Create a QueuedPort with a given name, owner, and a supplied
77 * implementation of a packet queue. The external definition of
78 * the queue enables e.g. the cache to implement a specific queue
79 * behaviuor in a subclass, and provide the latter to the
80 * QueuePort constructor.
81 */
112 public:
113
114 /**
115 * Create a QueuedPort with a given name, owner, and a supplied
116 * implementation of a packet queue. The external definition of
117 * the queue enables e.g. the cache to implement a specific queue
118 * behaviuor in a subclass, and provide the latter to the
119 * QueuePort constructor.
120 */
82 QueuedPort(const std::string& name, MemObject* owner, PacketQueue &queue) :
83 Port(name, owner), queue(queue)
121 QueuedMasterPort(const std::string& name, MemObject* owner,
122 PacketQueue &queue) :
123 MasterPort(name, owner), queue(queue)
84 { }
85
124 { }
125
86 virtual ~QueuedPort() { }
126 virtual ~QueuedMasterPort() { }
87
88 /** Check the list of buffered packets against the supplied
89 * functional request. */
90 bool checkFunctional(PacketPtr pkt) { return queue.checkFunctional(pkt); }
91
92 /**
93 * Hook for draining the queued port.
94 *
95 * @param de an event which is used to signal back to the caller
96 * @returns a number indicating how many times process will be called
97 */
98 unsigned int drain(Event *de) { return queue.drain(de); }
99};
100
101#endif // __MEM_QPORT_HH__
127
128 /** Check the list of buffered packets against the supplied
129 * functional request. */
130 bool checkFunctional(PacketPtr pkt) { return queue.checkFunctional(pkt); }
131
132 /**
133 * Hook for draining the queued port.
134 *
135 * @param de an event which is used to signal back to the caller
136 * @returns a number indicating how many times process will be called
137 */
138 unsigned int drain(Event *de) { return queue.drain(de); }
139};
140
141#endif // __MEM_QPORT_HH__