MemBankWiseParams.cc revision 12266:63b8da9eeca4 
1/*
2 * Copyright (c) 2012-2014, TU Delft
3 * Copyright (c) 2012-2014, TU Eindhoven
4 * Copyright (c) 2012-2016, 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: Subash Kannoth, Matthias Jung, Éder F. Zulian
35 *
36 */
37
38#include "MemBankWiseParams.h"
39
40using namespace Data;
41/**
42 * Sets the default bankwise configurations.
43 */
44MemBankWiseParams::MemBankWiseParams():
45  bwPowerFactRho(100),
46  bwPowerFactSigma(100),
47  bwMode(false),
48  flgPASR(false)
49{
50}
51/**
52 * Sets all the bankwise parameters required in bankwise mode
53 */
54MemBankWiseParams::MemBankWiseParams(int64_t factRho, int64_t factSigma,
55                                      bool hasPASR, int64_t pasrMode,
56                                      bool opMode, unsigned nbrofBanks)
57{
58
59  bwPowerFactRho = factRho;
60  bwPowerFactSigma = factSigma;
61  bwMode = opMode;
62  flgPASR = hasPASR;
63  ///////////////////////////////////////////////////////////
64  // Activate banks for self refresh based on the PASR mode
65  // ACTIVE     - X
66  // NOT ACTIVE - 0
67  ///////////////////////////////////////////////////////////
68  switch(pasrMode){
69
70    case(PASR_0):{
71                   // PASR MODE 0
72                   // FULL ARRAY
73                   // |X X X X |
74                   // |X X X X |
75                   activeBanks.resize(nbrofBanks);
76                   std::iota(activeBanks.begin(), activeBanks.end(), 0);
77                   break;
78                 }
79    case(PASR_1):{
80                   // PASR MODE 1
81                   // (1/2) ARRAY
82                   // |X X X X |
83                   // |0 0 0 0 |
84                   activeBanks.resize(nbrofBanks - 4);
85                   std::iota(activeBanks.begin(), activeBanks.end(), 0);
86                   break;
87                 }
88    case(PASR_2):{
89                   // PASR MODE 2
90                   // (1/4) ARRAY
91                   // |X X 0 0 |
92                   // |0 0 0 0 |
93                   activeBanks.resize(nbrofBanks - 6);
94                   std::iota(activeBanks.begin(), activeBanks.end(), 0);
95                   break;
96                 }
97    case(PASR_3):{
98                   // PASR MODE 3
99                   // (1/8) ARRAY
100                   // |X 0 0 0 |
101                   // |0 0 0 0 |
102                   activeBanks.resize(nbrofBanks - 7);
103                   std::iota(activeBanks.begin(), activeBanks.end(), 0);
104                   break;
105                 }
106    case(PASR_4):{
107                   // PASR MODE 4
108                   // (3/4) ARRAY
109                   // |0 0 X X |
110                   // |X X X X |
111                   activeBanks.resize(nbrofBanks - 2);
112                   std::iota(activeBanks.begin(), activeBanks.end(), 2);
113                   break;
114                 }
115    case(PASR_5):{
116                   // PASR MODE 5
117                   // (1/2) ARRAY
118                   // |0 0 0 0 |
119                   // |X X X X |
120                   activeBanks.resize(nbrofBanks - 4);
121                   std::iota(activeBanks.begin(), activeBanks.end(), 4);
122                   break;
123                 }
124    case(PASR_6):{
125                   // PASR MODE 6
126                   // (1/4) ARRAY
127                   // |0 0 0 0 |
128                   // |0 0 X X |
129                   activeBanks.resize(nbrofBanks - 6);
130                   std::iota(activeBanks.begin(), activeBanks.end(), 6);
131                   break;
132                 }
133    case(PASR_7):{
134                   // PASR MODE 7
135                   // (1/8) ARRAY
136                   // |0 0 0 0 |
137                   // |0 0 0 X |
138                   activeBanks.resize(nbrofBanks - 7);
139                   std::iota(activeBanks.begin(), activeBanks.end(), 7);
140                   break;
141                 }
142    default:{
143                   // PASR MODE 0
144                   // FULL ARRAY
145                   // |X X X X |
146                   // |X X X X |
147                   activeBanks.resize(nbrofBanks);
148                   std::iota(activeBanks.begin(), activeBanks.end(), 0);
149                   break;
150    }
151  }
152}
153
154/**
155 * Returns true if the given bank is active under the current PASR mode.
156 */
157bool MemBankWiseParams::isBankActiveInPasr(const unsigned bankIdx) const
158{
159  return (std::find(activeBanks.begin(), activeBanks.end(), bankIdx)
160      != activeBanks.end());
161}
162