test_windowed.S (6981B)
1 #include "macros.inc" 2 3 test_suite windowed 4 5 #if XCHAL_HAVE_WINDOWED 6 7 .altmacro 8 9 .macro reset_window start 10 movi a2, 0xffff 11 wsr a2, windowstart 12 rsync 13 movi a2, 0 14 wsr a2, windowbase 15 rsync 16 movi a2, \start 17 wsr a2, windowstart 18 rsync 19 .endm 20 21 .macro overflow_test shift, window, probe_ok, probe_ex 22 set_vector window_overflow_4, 0 23 set_vector window_overflow_8, 0 24 set_vector window_overflow_12, 0 25 26 movi a2, 1 | (((1 << ((\window) / 4)) | 1) << ((\shift) / 4)) 27 wsr a2, windowstart 28 reset_ps 29 30 mov a2, a\probe_ok 31 set_vector window_overflow_\window, 10f 32 1: 33 mov a2, a\probe_ex 34 test_fail 35 10: 36 rsr a2, epc1 37 movi a3, 1b 38 assert eq, a2, a3 39 movi a2, 2f 40 wsr a2, epc1 41 42 rsr a2, windowbase 43 movi a3, (\shift) / 4 44 assert eq, a2, a3 45 rsr a2, ps 46 movi a3, 0x4001f 47 assert eq, a2, a3 48 rfwo 49 test_fail 50 2: 51 rsr a2, windowbase 52 assert eqi, a2, 0 53 rsr a2, windowstart 54 movi a3, 1 | ((1 << ((\window) / 4)) << ((\shift) / 4)) 55 assert eq, a2, a3 56 rsr a2, ps 57 movi a3, 0x4000f 58 assert eq, a2, a3 59 .endm 60 61 .macro overflow_tests shift, window, probe 62 .if \probe < 15 63 overflow_test \shift, \window, %((\shift) - 1), \probe 64 overflow_tests \shift, \window, %((\probe) + 1) 65 .endif 66 .endm 67 68 .macro all_overflow_tests 69 .irp shift, 4, 8, 12 70 .irp window, 4, 8, 12 71 overflow_tests \shift, \window, \shift 72 .endr 73 .endr 74 .endm 75 76 test overflow 77 all_overflow_tests 78 test_end 79 80 81 .macro underflow_test window 82 set_vector window_underflow_4, 0 83 set_vector window_underflow_8, 0 84 set_vector window_underflow_12, 0 85 86 set_vector window_underflow_\window, 10f 87 88 reset_window 1 89 reset_ps 90 91 ssai 2 92 movi a2, 2f 93 slli a2, a2, 2 94 movi a3, (\window) / 4 95 src a0, a3, a2 96 1: 97 retw 98 test_fail 99 10: 100 rsr a2, epc1 101 movi a3, 1b 102 assert eq, a2, a3 103 movi a2, 2f 104 wsr a2, epc1 105 106 rsr a2, ps 107 movi a3, 0x4001f 108 assert eq, a2, a3 109 rsr a2, windowbase 110 movi a3, (XCHAL_NUM_AREGS - (\window)) / 4 111 assert eq, a2, a3 112 rsr a2, windowstart 113 assert eqi, a2, 1 114 rfwu 115 2: 116 rsr a2, ps 117 movi a3, 0x4000f 118 assert eq, a2, a3 119 rsr a2, windowbase 120 assert eqi, a2, 0 121 rsr a2, windowstart 122 assert bsi.l, a2, 0 123 assert bsi.l, a2, (XCHAL_NUM_AREGS - (\window)) / 4 124 .endm 125 126 test underflow 127 set_vector window_overflow_4, 0 128 set_vector window_overflow_8, 0 129 set_vector window_overflow_12, 0 130 131 underflow_test 4 132 underflow_test 8 133 underflow_test 12 134 test_end 135 136 137 .macro retw_test window 138 reset_window %(1 | (1 << ((XCHAL_NUM_AREGS - \window) / 4))) 139 reset_ps 140 141 ssai 2 142 movi a2, 1f 143 slli a2, a2, 2 144 movi a3, (\window) / 4 145 src a0, a3, a2 146 retw 147 test_fail 148 1: 149 rsr a2, ps 150 movi a3, 0x4000f 151 assert eq, a2, a3 152 rsr a2, windowbase 153 movi a3, (XCHAL_NUM_AREGS - (\window)) / 4 154 assert eq, a2, a3 155 rsr a2, windowstart 156 assert bci.l, a2, 0 157 assert bsi.l, a2, (XCHAL_NUM_AREGS - (\window)) / 4 158 .endm 159 160 test retw 161 set_vector window_underflow_4, 0 162 set_vector window_underflow_8, 0 163 set_vector window_underflow_12, 0 164 165 retw_test 4 166 retw_test 8 167 retw_test 12 168 test_end 169 170 test movsp 171 set_vector kernel, 2f 172 173 reset_window 1 174 reset_ps 175 1: 176 movsp a2, a3 177 test_fail 178 2: 179 rsr a2, exccause 180 assert eqi, a2, 5 181 rsr a2, epc1 182 movi a3, 1b 183 assert eq, a2, a3 184 185 set_vector kernel, 0 186 187 reset_window %(0x1 | (1 << ((XCHAL_NUM_AREGS / 4) - 1))) 188 reset_ps 189 190 movsp a2, a3 191 test_end 192 193 test rotw 194 reset_window 0x4b 195 reset_ps 196 197 movi a3, 0x10 198 199 rotw 1 200 rsr a2, windowbase 201 assert eqi, a2, 1 202 movi a3, 0x11 203 movi a7, 0x12 204 205 rotw 2 206 rsr a2, windowbase 207 assert eqi, a2, 3 208 movi a3, 0x13 209 movi a7, 0x14 210 movi a11, 0x15 211 212 rotw 3 213 rsr a2, windowbase 214 assert eqi, a2, 6 215 movi a3, 0x16 216 movi a7, 0x17 217 218 #if XCHAL_NUM_AREGS == 32 219 movi a2, 0x44 220 wsr a2, windowstart 221 #elif XCHAL_NUM_AREGS == 64 222 movi a2, 0x4004 223 wsr a2, windowstart 224 rotw -8 225 #else 226 #error XCHAL_NUM_AREGS unsupported 227 #endif 228 rsync 229 230 movi a2, 0x10 231 assert eq, a2, a11 232 movi a11, 0x18 233 movi a2, 0x11 234 assert eq, a2, a15 235 movi a15, 0x19 236 237 rotw 4 238 movi a2, 0x12 239 assert eq, a2, a3 240 movi a2, 0x13 241 assert eq, a2, a7 242 movi a2, 0x14 243 assert eq, a2, a11 244 movi a2, 0x15 245 assert eq, a2, a15 246 247 movi a2, 0x5 248 wsr a2, windowstart 249 rsync 250 251 rotw -2 252 movi a2, 0x18 253 assert eq, a2, a3 254 movi a2, 0x19 255 assert eq, a2, a7 256 test_end 257 258 .macro callw_test window 259 call\window 2f 260 1: 261 test_fail 262 .align 4 263 2: 264 rsr a2, windowbase 265 assert eqi, a2, 0 266 rsr a2, ps 267 movi a3, 0x4000f | ((\window) << 14) 268 assert eq, a2, a3 269 movi a2, 1b 270 slli a2, a2, 2 271 ssai 2 272 movi a3, (\window) / 4 273 src a2, a3, a2 274 assert eq, a2, a\window 275 .endm 276 277 test callw 278 reset_window 0x1 279 reset_ps 280 281 callw_test 4 282 callw_test 8 283 callw_test 12 284 test_end 285 286 287 .macro entry_test window 288 reset_window 0x1 289 reset_ps 290 movi a2, 0x4000f | ((\window) << 14) 291 wsr a2, ps 292 isync 293 movi a3, 0x12345678 294 j 1f 295 .align 4 296 1: 297 entry a3, 0x5678 298 movi a2, 0x12340000 299 assert eq, a2, a3 300 rsr a2, windowbase 301 assert eqi, a2, (\window) / 4 302 rsr a2, windowstart 303 movi a3, 1 | (1 << ((\window) / 4)) 304 assert eq, a2, a3 305 rotw -(\window) / 4 306 .endm 307 308 test entry 309 entry_test 4 310 entry_test 8 311 entry_test 12 312 test_end 313 314 .macro entry_overflow_test window, free, next_window 315 set_vector window_overflow_4, 0 316 set_vector window_overflow_8, 0 317 set_vector window_overflow_12, 0 318 set_vector window_overflow_\next_window, 10f 319 320 movi a2, \window 321 movi a2, \free 322 movi a2, \next_window 323 reset_window %(1 | ((1 | (1 << ((\next_window) / 4))) << ((\free) / 4))) 324 reset_ps 325 movi a2, 0x4000f | ((\window) << 14) 326 wsr a2, ps 327 isync 328 movi a3, 0x12345678 329 j 1f 330 .align 4 331 1: 332 entry a3, 0x5678 333 test_fail 334 .align 4 335 10: 336 rsr a2, epc1 337 movi a3, 1b 338 assert eq, a2, a3 339 movi a2, 2f 340 wsr a2, epc1 341 342 rsr a2, windowbase 343 movi a3, (\free) / 4 344 assert eq, a2, a3 345 rfwo 346 2: 347 .endm 348 349 .macro all_entry_overflow_tests 350 .irp window, 4, 8, 12 351 .irp next_window, 4, 8, 12 352 .irp free, 4, 8, 12 353 .if \free <= \window 354 entry_overflow_test \window, \free, \next_window 355 .endif 356 .endr 357 .endr 358 .endr 359 .endm 360 361 test entry_overflow 362 all_entry_overflow_tests 363 test_end 364 365 #endif 366 367 test_suite_end