1/*
2 * Copyright (c) 2012-2014, TU Delft
3 * Copyright (c) 2012-2014, TU Eindhoven
4 * Copyright (c) 2012-2014, TU Kaiserslautern
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are
9 * met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 *
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * 3. Neither the name of the copyright holder nor the names of its
19 * contributors may be used to endorse or promote products derived from
20 * this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
23 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
24 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
25 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
26 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
27 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
28 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
29 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
30 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
31 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
32 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 *
34 * Authors: Karthik Chandrasekar, Matthias Jung, Omar Naji
35 *
36 */
37
38#ifndef COMMAND_TIMINGS_H
39#define COMMAND_TIMINGS_H
40
41#include <stdint.h>
42
43#include <vector>
44#include <iostream>
45#include <deque>
46#include <string>
47
48#include "MemCommand.h"
49#include "MemorySpecification.h"
50#include "Utils.h"
51
52namespace Data {
53class CommandAnalysis {
54 public:
55 // Power-Down and Self-refresh related memory states
56 enum memstate {
57 MS_PDN_F_ACT = 10, MS_PDN_S_ACT = 11, MS_PDN_F_PRE = 12,
58 MS_PDN_S_PRE = 13, MS_SREF = 14
59 };
60
61 CommandAnalysis();
62
63 // Returns number of reads, writes, acts, pres and refs in the trace
64 CommandAnalysis(const int nbrofBanks);
65
66 // Number of activate commands
67 int64_t numberofacts;
68 // Number of precharge commands
69 int64_t numberofpres;
70 // Number of reads commands
71 int64_t numberofreads;
72 // Number of writes commands
73 int64_t numberofwrites;
74 // Number of refresh commands
75 int64_t numberofrefs;
76 // Number of precharge cycles
77 int64_t precycles;
78 // Number of active cycles
79 int64_t actcycles;
80 // Number of Idle cycles in the active state
81 int64_t idlecycles_act;
82 // Number of Idle cycles in the precharge state
83 int64_t idlecycles_pre;
84 // Number of fast-exit activate power-downs
85 int64_t f_act_pdns;
86 // Number of slow-exit activate power-downs
87 int64_t s_act_pdns;
88 // Number of fast-exit precharged power-downs
89 int64_t f_pre_pdns;
90 // Number of slow-exit activate power-downs
91 int64_t s_pre_pdns;
92 // Number of self-refresh commands
93 int64_t numberofsrefs;
94 // Number of clock cycles in fast-exit activate power-down mode
95 int64_t f_act_pdcycles;
96 // Number of clock cycles in slow-exit activate power-down mode
97 int64_t s_act_pdcycles;
98 // Number of clock cycles in fast-exit precharged power-down mode
99 int64_t f_pre_pdcycles;
100 // Number of clock cycles in slow-exit precharged power-down mode
101 int64_t s_pre_pdcycles;
102 // Number of clock cycles in self-refresh mode
103 int64_t sref_cycles;
104 // Number of clock cycles in activate power-up mode
105 int64_t pup_act_cycles;
106 // Number of clock cycles in precharged power-up mode
107 int64_t pup_pre_cycles;
108 // Number of clock cycles in self-refresh power-up mode
109 int64_t spup_cycles;
110
111 // Number of active auto-refresh cycles in self-refresh mode
112 int64_t sref_ref_act_cycles;
113 // Number of precharged auto-refresh cycles in self-refresh mode
114 int64_t sref_ref_pre_cycles;
115 // Number of active auto-refresh cycles during self-refresh exit
116 int64_t spup_ref_act_cycles;
117 // Number of precharged auto-refresh cycles during self-refresh exit
118 int64_t spup_ref_pre_cycles;
119
120 // function for clearing arrays
121 void clear();
122
123 // To identify auto-precharges
124 void getCommands(const MemorySpecification& memSpec,
125 const int
126 nbrofBanks,
127 std::vector<MemCommand>& list,
128 bool lastupdate);
129
130 private:
131 unsigned init;
132 int64_t zero;
133 unsigned pop;
134 // Cached last read command from the file
135 std::vector<MemCommand> cached_cmd;
136
137 // Stores the memory commands for analysis
138 std::vector<MemCommand> cmd_list;
139
140 // Stores all memory commands for analysis
141 std::vector<MemCommand> full_cmd_list;
142
143 // To save states of the different banks, before entering active
144 // power-down mode (slow/fast-exit).
145 std::vector<int> last_states;
146 // Bank state vector
147 std::vector<int> bankstate;
148
149 std::vector<int64_t> activation_cycle;
150 // To keep track of the last ACT cycle
151 int64_t latest_act_cycle;
152 // To keep track of the last PRE cycle
153 int64_t latest_pre_cycle;
154 // To keep track of the last READ cycle
155 int64_t latest_read_cycle;
156 // To keep track of the last WRITE cycle
157 int64_t latest_write_cycle;
158
159 // To calculate end of READ operation
160 int64_t end_read_op;
161 // To calculate end of WRITE operation
162 int64_t end_write_op;
163 // To calculate end of ACT operation
164 int64_t end_act_op;
165
166 // Clock cycle when self-refresh was issued
167 int64_t sref_cycle;
168
169 // Clock cycle when the latest power-down was issued
170 int64_t pdn_cycle;
171
172 // Memory State
173 unsigned mem_state;
174
175 // Clock cycle of first activate command when memory state changes to ACT
176 int64_t first_act_cycle;
177
178 // Clock cycle of last precharge command when memory state changes to PRE
179 int64_t last_pre_cycle;
180 // To collect and analyse all commands including auto-precharges
181 void analyse_commands(const int nbrofBanks,
182 Data::MemorySpecification
183 memSpec,
184 int64_t nCommands,
185 int64_t nCached,
186 bool lastupdate);
187 // To perform timing analysis of a given set of commands and update command counters
188 void evaluate(const MemorySpecification& memSpec,
189 std::vector<MemCommand>& cmd_list,
190 int nbrofBanks);
191
192 // To calculate time of completion of any issued command
193 int timeToCompletion(const MemorySpecification& memSpec,
194 MemCommand::cmds type);
195
196 // To update idle period information whenever active cycles may be idle
197 void idle_act_update(const MemorySpecification& memSpec,
198 int64_t latest_read_cycle,
199 int64_t latest_write_cycle,
200 int64_t latest_act_cycle,
201 int64_t timestamp);
202
203 // To update idle period information whenever precharged cycles may be idle
204 void idle_pre_update(const MemorySpecification& memSpec,
205 int64_t timestamp,
206 int64_t latest_pre_cycle);
207
208 void printWarningIfActive(const std::string& warning, int type, int64_t timestamp, int bank);
209 void printWarningIfNotActive(const std::string& warning, int type, int64_t timestamp, int bank);
210 void printWarning(const std::string& warning, int type, int64_t timestamp, int bank);
211};
212}
213#endif // ifndef COMMAND_TIMINGS_H