RubyPort.hh (6876:a658c315512c) RubyPort.hh (6882:898047a3672c)
1
2/*
3 * Copyright (c) 2009 Advanced Micro Devices, Inc.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are
8 * met: redistributions of source code must retain the above copyright

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41
42using namespace std;
43
44class MessageBuffer;
45class AbstractController;
46
47class RubyPort : public MemObject {
48public:
1
2/*
3 * Copyright (c) 2009 Advanced Micro Devices, Inc.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are
8 * met: redistributions of source code must retain the above copyright

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41
42using namespace std;
43
44class MessageBuffer;
45class AbstractController;
46
47class RubyPort : public MemObject {
48public:
49
50 class M5Port : public SimpleTimingPort
51 {
52
53 RubyPort *ruby_port;
54
55 public:
56 M5Port(const std::string &_name,
57 RubyPort *_port);
58 bool sendTiming(PacketPtr pkt);
59 void hitCallback(PacketPtr pkt);
60
61 protected:
62 virtual bool recvTiming(PacketPtr pkt);
63 virtual Tick recvAtomic(PacketPtr pkt);
64
65 private:
66 bool isPioAddress(Addr addr);
67 bool isPhysMemAddress(Addr addr);
68 };
69
70 friend class M5Port;
71
72 class PioPort : public SimpleTimingPort
73 {
74
75 RubyPort *ruby_port;
76
77 public:
78 PioPort(const std::string &_name,
79 RubyPort *_port);
80 bool sendTiming(PacketPtr pkt);
81
82 protected:
83 virtual bool recvTiming(PacketPtr pkt);
84 virtual Tick recvAtomic(PacketPtr pkt);
85 };
86
87 friend class PioPort;
88
89 struct SenderState : public Packet::SenderState
90 {
91 M5Port* port;
92 Packet::SenderState *saved;
93
94 SenderState(M5Port* _port,
95 Packet::SenderState *sender_state = NULL)
96 : port(_port), saved(sender_state)
97 {}
98 };
99
49 typedef RubyPortParams Params;
50 RubyPort(const Params *p);
100 typedef RubyPortParams Params;
101 RubyPort(const Params *p);
51 virtual ~RubyPort() {}
102 virtual ~RubyPort() {}
52
103
104 void init();
105
53 Port *getPort(const std::string &if_name, int idx);
54
106 Port *getPort(const std::string &if_name, int idx);
107
55 virtual int64_t makeRequest(const RubyRequest & request) = 0;
108 virtual int64_t makeRequest(const RubyRequest & request) = 0;
56
109
57 void registerHitCallback(void (*hit_callback)(int64_t request_id)) {
58 assert(m_hit_callback == NULL); // can't assign hit_callback twice
59 m_hit_callback = hit_callback;
60 }
110 void registerHitCallback(void (*hit_callback)(int64_t request_id)) {
111 //
112 // Can't assign hit_callback twice and by default it is set to the
113 // RubyPort's default callback function.
114 //
115 assert(m_hit_callback == ruby_hit_callback);
116 m_hit_callback = hit_callback;
117 }
61
118
119 //
120 // Called by the controller to give the sequencer a pointer.
121 // A pointer to the controller is needed for atomic support.
122 //
123 void setController(AbstractController* _cntrl) { m_controller = _cntrl; }
124
62protected:
63 const string m_name;
64 void (*m_hit_callback)(int64_t);
65
66 int64_t makeUniqueRequestID() {
67 // The request ID is generated by combining the port ID with a request count
68 // so that request IDs can be formed concurrently by multiple threads.
69 // IDs are formed as follows:

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82 m_request_cnt++;
83 // assert((m_request_cnt & (1<<48)) == 0);
84 return id;
85 }
86
87 int m_version;
88 AbstractController* m_controller;
89 MessageBuffer* m_mandatory_q_ptr;
125protected:
126 const string m_name;
127 void (*m_hit_callback)(int64_t);
128
129 int64_t makeUniqueRequestID() {
130 // The request ID is generated by combining the port ID with a request count
131 // so that request IDs can be formed concurrently by multiple threads.
132 // IDs are formed as follows:

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145 m_request_cnt++;
146 // assert((m_request_cnt & (1<<48)) == 0);
147 return id;
148 }
149
150 int m_version;
151 AbstractController* m_controller;
152 MessageBuffer* m_mandatory_q_ptr;
153 PioPort* pio_port;
90
91private:
92 static uint16_t m_num_ports;
93 uint16_t m_port_id;
94 uint64_t m_request_cnt;
154
155private:
156 static uint16_t m_num_ports;
157 uint16_t m_port_id;
158 uint64_t m_request_cnt;
159
160 struct RequestCookie {
161 Packet *pkt;
162 M5Port *m5Port;
163 RequestCookie(Packet *p, M5Port *m5p)
164 : pkt(p), m5Port(m5p)
165 {}
166 };
167
168 typedef std::map<int64_t, RequestCookie*> RequestMap;
169 static RequestMap pending_cpu_requests;
170 static void ruby_hit_callback(int64_t req_id);
171
172 FunctionalPort funcMemPort;
95};
96
97#endif
173};
174
175#endif