njn | 4f9c934 | 2002-04-29 16:03:24 +0000 | [diff] [blame] | 1 | /* L2 cache simulator, generated by vg_cachegen. |
| 2 | * total size = 262144 bytes |
| 3 | * line size = 64 bytes |
| 4 | * associativity = 8-way associative |
| 5 | * |
| 6 | * This file should be #include-d into vg_cachesim.c |
| 7 | */ |
| 8 | |
| 9 | static char L2_desc_line[] = |
| 10 | "desc: L2 cache: 262144 B, 64 B, 8-way associative\n"; |
| 11 | |
| 12 | static UInt L2_tags[512][8]; |
| 13 | |
| 14 | static void cachesim_L2_initcache(void) |
| 15 | { |
| 16 | UInt set, way; |
| 17 | for (set = 0; set < 512; set++) |
| 18 | for (way = 0; way < 8; way++) |
| 19 | L2_tags[set][way] = 0; |
| 20 | } |
| 21 | |
| 22 | static __inline__ |
| 23 | void cachesim_L2_doref(Addr a, UChar size, ULong *m2) |
| 24 | { |
njn | 9aae674 | 2002-04-30 13:44:01 +0000 | [diff] [blame] | 25 | register UInt set1 = ( a >> 6) & (512-1); |
| 26 | register UInt set2 = ((a + size - 1) >> 6) & (512-1); |
njn | 4f9c934 | 2002-04-29 16:03:24 +0000 | [diff] [blame] | 27 | register UInt tag = a >> (6 + 9); |
| 28 | |
| 29 | if (set1 == set2) { |
| 30 | |
| 31 | if (tag == L2_tags[set1][0]) { |
| 32 | return; |
| 33 | } |
| 34 | else if (tag == L2_tags[set1][1]) { |
| 35 | L2_tags[set1][1] = L2_tags[set1][0]; |
| 36 | L2_tags[set1][0] = tag; |
| 37 | return; |
| 38 | } |
| 39 | else if (tag == L2_tags[set1][2]) { |
| 40 | L2_tags[set1][2] = L2_tags[set1][1]; |
| 41 | L2_tags[set1][1] = L2_tags[set1][0]; |
| 42 | L2_tags[set1][0] = tag; |
| 43 | return; |
| 44 | } |
| 45 | else if (tag == L2_tags[set1][3]) { |
| 46 | L2_tags[set1][3] = L2_tags[set1][2]; |
| 47 | L2_tags[set1][2] = L2_tags[set1][1]; |
| 48 | L2_tags[set1][1] = L2_tags[set1][0]; |
| 49 | L2_tags[set1][0] = tag; |
| 50 | return; |
| 51 | } |
| 52 | else if (tag == L2_tags[set1][4]) { |
| 53 | L2_tags[set1][4] = L2_tags[set1][3]; |
| 54 | L2_tags[set1][3] = L2_tags[set1][2]; |
| 55 | L2_tags[set1][2] = L2_tags[set1][1]; |
| 56 | L2_tags[set1][1] = L2_tags[set1][0]; |
| 57 | L2_tags[set1][0] = tag; |
| 58 | return; |
| 59 | } |
| 60 | else if (tag == L2_tags[set1][5]) { |
| 61 | L2_tags[set1][5] = L2_tags[set1][4]; |
| 62 | L2_tags[set1][4] = L2_tags[set1][3]; |
| 63 | L2_tags[set1][3] = L2_tags[set1][2]; |
| 64 | L2_tags[set1][2] = L2_tags[set1][1]; |
| 65 | L2_tags[set1][1] = L2_tags[set1][0]; |
| 66 | L2_tags[set1][0] = tag; |
| 67 | return; |
| 68 | } |
| 69 | else if (tag == L2_tags[set1][6]) { |
| 70 | L2_tags[set1][6] = L2_tags[set1][5]; |
| 71 | L2_tags[set1][5] = L2_tags[set1][4]; |
| 72 | L2_tags[set1][4] = L2_tags[set1][3]; |
| 73 | L2_tags[set1][3] = L2_tags[set1][2]; |
| 74 | L2_tags[set1][2] = L2_tags[set1][1]; |
| 75 | L2_tags[set1][1] = L2_tags[set1][0]; |
| 76 | L2_tags[set1][0] = tag; |
| 77 | return; |
| 78 | } |
| 79 | else if (tag == L2_tags[set1][7]) { |
| 80 | L2_tags[set1][7] = L2_tags[set1][6]; |
| 81 | L2_tags[set1][6] = L2_tags[set1][5]; |
| 82 | L2_tags[set1][5] = L2_tags[set1][4]; |
| 83 | L2_tags[set1][4] = L2_tags[set1][3]; |
| 84 | L2_tags[set1][3] = L2_tags[set1][2]; |
| 85 | L2_tags[set1][2] = L2_tags[set1][1]; |
| 86 | L2_tags[set1][1] = L2_tags[set1][0]; |
| 87 | L2_tags[set1][0] = tag; |
| 88 | return; |
| 89 | } |
| 90 | else { |
| 91 | /* A miss */ |
| 92 | L2_tags[set1][7] = L2_tags[set1][6]; |
| 93 | L2_tags[set1][6] = L2_tags[set1][5]; |
| 94 | L2_tags[set1][5] = L2_tags[set1][4]; |
| 95 | L2_tags[set1][4] = L2_tags[set1][3]; |
| 96 | L2_tags[set1][3] = L2_tags[set1][2]; |
| 97 | L2_tags[set1][2] = L2_tags[set1][1]; |
| 98 | L2_tags[set1][1] = L2_tags[set1][0]; |
| 99 | L2_tags[set1][0] = tag; |
| 100 | |
| 101 | (*m2)++; |
| 102 | } |
| 103 | |
| 104 | } else if ((set1 + 1) % 512 == set2) { |
| 105 | |
| 106 | Bool is_L2_miss = False; |
| 107 | |
| 108 | /* Block one */ |
| 109 | if (tag == L2_tags[set1][0]) { |
| 110 | } |
| 111 | else if (tag == L2_tags[set1][1]) { |
| 112 | L2_tags[set1][1] = L2_tags[set1][0]; |
| 113 | L2_tags[set1][0] = tag; |
| 114 | } |
| 115 | else if (tag == L2_tags[set1][2]) { |
| 116 | L2_tags[set1][2] = L2_tags[set1][1]; |
| 117 | L2_tags[set1][1] = L2_tags[set1][0]; |
| 118 | L2_tags[set1][0] = tag; |
| 119 | } |
| 120 | else if (tag == L2_tags[set1][3]) { |
| 121 | L2_tags[set1][3] = L2_tags[set1][2]; |
| 122 | L2_tags[set1][2] = L2_tags[set1][1]; |
| 123 | L2_tags[set1][1] = L2_tags[set1][0]; |
| 124 | L2_tags[set1][0] = tag; |
| 125 | } |
| 126 | else if (tag == L2_tags[set1][4]) { |
| 127 | L2_tags[set1][4] = L2_tags[set1][3]; |
| 128 | L2_tags[set1][3] = L2_tags[set1][2]; |
| 129 | L2_tags[set1][2] = L2_tags[set1][1]; |
| 130 | L2_tags[set1][1] = L2_tags[set1][0]; |
| 131 | L2_tags[set1][0] = tag; |
| 132 | } |
| 133 | else if (tag == L2_tags[set1][5]) { |
| 134 | L2_tags[set1][5] = L2_tags[set1][4]; |
| 135 | L2_tags[set1][4] = L2_tags[set1][3]; |
| 136 | L2_tags[set1][3] = L2_tags[set1][2]; |
| 137 | L2_tags[set1][2] = L2_tags[set1][1]; |
| 138 | L2_tags[set1][1] = L2_tags[set1][0]; |
| 139 | L2_tags[set1][0] = tag; |
| 140 | } |
| 141 | else if (tag == L2_tags[set1][6]) { |
| 142 | L2_tags[set1][6] = L2_tags[set1][5]; |
| 143 | L2_tags[set1][5] = L2_tags[set1][4]; |
| 144 | L2_tags[set1][4] = L2_tags[set1][3]; |
| 145 | L2_tags[set1][3] = L2_tags[set1][2]; |
| 146 | L2_tags[set1][2] = L2_tags[set1][1]; |
| 147 | L2_tags[set1][1] = L2_tags[set1][0]; |
| 148 | L2_tags[set1][0] = tag; |
| 149 | } |
| 150 | else if (tag == L2_tags[set1][7]) { |
| 151 | L2_tags[set1][7] = L2_tags[set1][6]; |
| 152 | L2_tags[set1][6] = L2_tags[set1][5]; |
| 153 | L2_tags[set1][5] = L2_tags[set1][4]; |
| 154 | L2_tags[set1][4] = L2_tags[set1][3]; |
| 155 | L2_tags[set1][3] = L2_tags[set1][2]; |
| 156 | L2_tags[set1][2] = L2_tags[set1][1]; |
| 157 | L2_tags[set1][1] = L2_tags[set1][0]; |
| 158 | L2_tags[set1][0] = tag; |
| 159 | } |
| 160 | else { |
| 161 | /* A miss */ |
| 162 | L2_tags[set1][7] = L2_tags[set1][6]; |
| 163 | L2_tags[set1][6] = L2_tags[set1][5]; |
| 164 | L2_tags[set1][5] = L2_tags[set1][4]; |
| 165 | L2_tags[set1][4] = L2_tags[set1][3]; |
| 166 | L2_tags[set1][3] = L2_tags[set1][2]; |
| 167 | L2_tags[set1][2] = L2_tags[set1][1]; |
| 168 | L2_tags[set1][1] = L2_tags[set1][0]; |
| 169 | L2_tags[set1][0] = tag; |
| 170 | |
| 171 | is_L2_miss = True; |
| 172 | } |
| 173 | |
| 174 | /* Block two */ |
| 175 | if (tag == L2_tags[set2][0]) { |
| 176 | } |
| 177 | else if (tag == L2_tags[set2][1]) { |
| 178 | L2_tags[set2][1] = L2_tags[set2][0]; |
| 179 | L2_tags[set2][0] = tag; |
| 180 | } |
| 181 | else if (tag == L2_tags[set2][2]) { |
| 182 | L2_tags[set2][2] = L2_tags[set2][1]; |
| 183 | L2_tags[set2][1] = L2_tags[set2][0]; |
| 184 | L2_tags[set2][0] = tag; |
| 185 | } |
| 186 | else if (tag == L2_tags[set2][3]) { |
| 187 | L2_tags[set2][3] = L2_tags[set2][2]; |
| 188 | L2_tags[set2][2] = L2_tags[set2][1]; |
| 189 | L2_tags[set2][1] = L2_tags[set2][0]; |
| 190 | L2_tags[set2][0] = tag; |
| 191 | } |
| 192 | else if (tag == L2_tags[set2][4]) { |
| 193 | L2_tags[set2][4] = L2_tags[set2][3]; |
| 194 | L2_tags[set2][3] = L2_tags[set2][2]; |
| 195 | L2_tags[set2][2] = L2_tags[set2][1]; |
| 196 | L2_tags[set2][1] = L2_tags[set2][0]; |
| 197 | L2_tags[set2][0] = tag; |
| 198 | } |
| 199 | else if (tag == L2_tags[set2][5]) { |
| 200 | L2_tags[set2][5] = L2_tags[set2][4]; |
| 201 | L2_tags[set2][4] = L2_tags[set2][3]; |
| 202 | L2_tags[set2][3] = L2_tags[set2][2]; |
| 203 | L2_tags[set2][2] = L2_tags[set2][1]; |
| 204 | L2_tags[set2][1] = L2_tags[set2][0]; |
| 205 | L2_tags[set2][0] = tag; |
| 206 | } |
| 207 | else if (tag == L2_tags[set2][6]) { |
| 208 | L2_tags[set2][6] = L2_tags[set2][5]; |
| 209 | L2_tags[set2][5] = L2_tags[set2][4]; |
| 210 | L2_tags[set2][4] = L2_tags[set2][3]; |
| 211 | L2_tags[set2][3] = L2_tags[set2][2]; |
| 212 | L2_tags[set2][2] = L2_tags[set2][1]; |
| 213 | L2_tags[set2][1] = L2_tags[set2][0]; |
| 214 | L2_tags[set2][0] = tag; |
| 215 | } |
| 216 | else if (tag == L2_tags[set2][7]) { |
| 217 | L2_tags[set2][7] = L2_tags[set2][6]; |
| 218 | L2_tags[set2][6] = L2_tags[set2][5]; |
| 219 | L2_tags[set2][5] = L2_tags[set2][4]; |
| 220 | L2_tags[set2][4] = L2_tags[set2][3]; |
| 221 | L2_tags[set2][3] = L2_tags[set2][2]; |
| 222 | L2_tags[set2][2] = L2_tags[set2][1]; |
| 223 | L2_tags[set2][1] = L2_tags[set2][0]; |
| 224 | L2_tags[set2][0] = tag; |
| 225 | } |
| 226 | else { |
| 227 | /* A miss */ |
| 228 | L2_tags[set2][7] = L2_tags[set2][6]; |
| 229 | L2_tags[set2][6] = L2_tags[set2][5]; |
| 230 | L2_tags[set2][5] = L2_tags[set2][4]; |
| 231 | L2_tags[set2][4] = L2_tags[set2][3]; |
| 232 | L2_tags[set2][3] = L2_tags[set2][2]; |
| 233 | L2_tags[set2][2] = L2_tags[set2][1]; |
| 234 | L2_tags[set2][1] = L2_tags[set2][0]; |
| 235 | L2_tags[set2][0] = tag; |
| 236 | |
| 237 | is_L2_miss = True; |
| 238 | } |
| 239 | |
| 240 | /* Miss treatment */ |
| 241 | if (is_L2_miss) { |
| 242 | (*m2)++; |
| 243 | } |
| 244 | |
| 245 | } else { |
| 246 | VG_(printf)("\nERROR: Data item 0x%x of size %u bytes is in two non-adjacent\n", a, size); |
| 247 | VG_(printf)("sets %d and %d.\n", set1, set2); |
| 248 | VG_(panic)("L2 cache set mismatch"); |
| 249 | } |
| 250 | } |