1
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1/* 2 * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood 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; 9 * redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution; 12 * neither the name of the copyright holders nor the names of its 13 * contributors may be used to endorse or promote products derived from 14 * this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28
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30/*
31 * $Id: Sequencer.hh 1.70 2006/09/27 14:56:41-05:00 bobba@s1-01.cs.wisc.edu $
32 *
33 * Description:
34 *
35 */
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29#ifndef __MEM_RUBY_SYSTEM_SEQUENCER_HH__ 30#define __MEM_RUBY_SYSTEM_SEQUENCER_HH__ |
31
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37#ifndef SEQUENCER_H
38#define SEQUENCER_H
39
40#include "mem/ruby/common/Global.hh"
41#include "mem/ruby/common/Consumer.hh"
42#include "mem/protocol/CacheRequestType.hh"
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32#include "mem/gems_common/Map.hh" |
33#include "mem/protocol/AccessModeType.hh"
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34#include "mem/protocol/CacheRequestType.hh" |
35#include "mem/protocol/GenericMachineType.hh" 36#include "mem/protocol/PrefetchBit.hh"
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46#include "mem/ruby/system/RubyPort.hh"
47#include "mem/gems_common/Map.hh"
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37#include "mem/ruby/common/Address.hh"
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38#include "mem/ruby/common/Consumer.hh" 39#include "mem/ruby/common/Global.hh" 40#include "mem/ruby/system/RubyPort.hh" |
41 42class DataBlock; 43class CacheMsg; 44class MachineID; 45class CacheMemory; 46 47class RubySequencerParams; 48
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57struct SequencerRequest {
58 RubyRequest ruby_request;
59 Time issue_time;
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49struct SequencerRequest 50{ 51 RubyRequest ruby_request; 52 Time issue_time; |
53
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61 SequencerRequest(const RubyRequest & _ruby_request,
62 Time _issue_time)
63 : ruby_request(_ruby_request),
64 issue_time(_issue_time)
65 {}
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54 SequencerRequest(const RubyRequest & _ruby_request, Time _issue_time) 55 : ruby_request(_ruby_request), issue_time(_issue_time) 56 {} |
57}; 58 59std::ostream& operator<<(std::ostream& out, const SequencerRequest& obj); 60
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70class Sequencer : public RubyPort, public Consumer {
71public:
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61class Sequencer : public RubyPort, public Consumer 62{ 63 public: |
64 typedef RubySequencerParams Params;
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73 // Constructors
74 Sequencer(const Params *);
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65 Sequencer(const Params *); 66 ~Sequencer(); |
67
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76 // Destructor
77 ~Sequencer();
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68 // Public Methods 69 void wakeup(); // Used only for deadlock detection |
70
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79 // Public Methods
80 void wakeup(); // Used only for deadlock detection
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71 void printConfig(ostream& out) const; |
72
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82 void printConfig(ostream& out) const;
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73 void printProgress(ostream& out) const; |
74
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84 void printProgress(ostream& out) const;
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75 void writeCallback(const Address& address, DataBlock& data); 76 void readCallback(const Address& address, DataBlock& data); |
77
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86 void writeCallback(const Address& address, DataBlock& data);
87 void readCallback(const Address& address, DataBlock& data);
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78 RequestStatus makeRequest(const RubyRequest & request); 79 RequestStatus getRequestStatus(const RubyRequest& request); 80 bool empty() const; |
81
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89 RequestStatus makeRequest(const RubyRequest & request);
90 RequestStatus getRequestStatus(const RubyRequest& request);
91 bool empty() const;
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82 void print(ostream& out) const; 83 void printStats(ostream & out) const; 84 void checkCoherence(const Address& address); |
85
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93 void print(ostream& out) const;
94 void printStats(ostream & out) const;
95 void checkCoherence(const Address& address);
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86 void removeRequest(SequencerRequest* request); |
87
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97 // bool getRubyMemoryValue(const Address& addr, char* value, unsigned int size_in_bytes);
98 // bool setRubyMemoryValue(const Address& addr, char *value, unsigned int size_in_bytes);
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88 private: 89 bool tryCacheAccess(const Address& addr, CacheRequestType type, 90 const Address& pc, AccessModeType access_mode, 91 int size, DataBlock*& data_ptr); 92 void issueRequest(const RubyRequest& request); |
93
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100 void removeRequest(SequencerRequest* request);
101private:
102 // Private Methods
103 bool tryCacheAccess(const Address& addr, CacheRequestType type, const Address& pc, AccessModeType access_mode, int size, DataBlock*& data_ptr);
104 void issueRequest(const RubyRequest& request);
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94 void hitCallback(SequencerRequest* request, DataBlock& data); 95 bool insertRequest(SequencerRequest* request); |
96
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106 void hitCallback(SequencerRequest* request, DataBlock& data);
107 bool insertRequest(SequencerRequest* request);
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97
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98 // Private copy constructor and assignment operator 99 Sequencer(const Sequencer& obj); 100 Sequencer& operator=(const Sequencer& obj); |
101
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110 // Private copy constructor and assignment operator
111 Sequencer(const Sequencer& obj);
112 Sequencer& operator=(const Sequencer& obj);
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102 private: 103 int m_max_outstanding_requests; 104 int m_deadlock_threshold; |
105
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114private:
115 int m_max_outstanding_requests;
116 int m_deadlock_threshold;
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106 CacheMemory* m_dataCache_ptr; 107 CacheMemory* m_instCache_ptr; |
108
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118 CacheMemory* m_dataCache_ptr;
119 CacheMemory* m_instCache_ptr;
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109 Map<Address, SequencerRequest*> m_writeRequestTable; 110 Map<Address, SequencerRequest*> m_readRequestTable; 111 // Global outstanding request count, across all request tables 112 int m_outstanding_count; 113 bool m_deadlock_check_scheduled; |
114
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121 Map<Address, SequencerRequest*> m_writeRequestTable;
122 Map<Address, SequencerRequest*> m_readRequestTable;
123 // Global outstanding request count, across all request tables
124 int m_outstanding_count;
125 bool m_deadlock_check_scheduled;
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115 int m_store_waiting_on_load_cycles; 116 int m_store_waiting_on_store_cycles; 117 int m_load_waiting_on_store_cycles; 118 int m_load_waiting_on_load_cycles; |
119
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127 int m_store_waiting_on_load_cycles;
128 int m_store_waiting_on_store_cycles;
129 int m_load_waiting_on_store_cycles;
130 int m_load_waiting_on_load_cycles;
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120 bool m_usingRubyTester; |
121
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132 bool m_usingRubyTester;
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122 class SequencerWakeupEvent : public Event 123 { 124 private: 125 Sequencer *m_sequencer_ptr; |
126
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134 class SequencerWakeupEvent : public Event
135 {
136 Sequencer *m_sequencer_ptr;
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127 public: 128 SequencerWakeupEvent(Sequencer *_seq) : m_sequencer_ptr(_seq) {} 129 void process() { m_sequencer_ptr->wakeup(); } 130 const char *description() const { return "Sequencer deadlock check"; } 131 }; |
132
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138 public:
139 SequencerWakeupEvent(Sequencer *_seq) : m_sequencer_ptr(_seq) {}
140 void process() { m_sequencer_ptr->wakeup(); }
141 const char *description() const { return "Sequencer deadlock check"; }
142 };
143
144 SequencerWakeupEvent deadlockCheckEvent;
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133 SequencerWakeupEvent deadlockCheckEvent; |
134}; 135
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147// Output operator declaration
148ostream& operator<<(ostream& out, const Sequencer& obj);
149
150// ******************* Definitions *******************
151
152// Output operator definition
153extern inline
154ostream& operator<<(ostream& out, const Sequencer& obj)
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136inline ostream& 137operator<<(ostream& out, const Sequencer& obj) |
138{
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156 obj.print(out);
157 out << flush;
158 return out;
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139 obj.print(out); 140 out << flush; 141 return out; |
142} 143
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161#endif //SEQUENCER_H
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144#endif // __MEM_RUBY_SYSTEM_SEQUENCER_HH__ |
145
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