| 1 | /* |
| 2 | * ========== Copyright Header Begin ========================================== |
| 3 | * |
| 4 | * OpenSPARC T2 Processor File: exu_win_traps_8th_n2.s |
| 5 | * Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved |
| 6 | * 4150 Network Circle, Santa Clara, California 95054, U.S.A. |
| 7 | * |
| 8 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License as published by |
| 12 | * the Free Software Foundation; version 2 of the License. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | * GNU General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this program; if not, write to the Free Software |
| 21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 22 | * |
| 23 | * For the avoidance of doubt, and except that if any non-GPL license |
| 24 | * choice is available it will apply instead, Sun elects to use only |
| 25 | * the General Public License version 2 (GPLv2) at this time for any |
| 26 | * software where a choice of GPL license versions is made |
| 27 | * available with the language indicating that GPLv2 or any later version |
| 28 | * may be used, or where a choice of which version of the GPL is applied is |
| 29 | * otherwise unspecified. |
| 30 | * |
| 31 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 32 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 33 | * have any questions. |
| 34 | * |
| 35 | * |
| 36 | * ========== Copyright Header End ============================================ |
| 37 | */ |
| 38 | #define H_VERSION_MAXWIN_MASK 0x1f |
| 39 | |
| 40 | ! communication betweent the test loop and the trap handlers. |
| 41 | #define FINISH_DONE 1 |
| 42 | #define FINISH_RETRY 2 |
| 43 | #define TRAP_NOT_TAKEN 1 |
| 44 | #define TRAP_TAKEN 0x1fff |
| 45 | |
| 46 | #define SKIP_TRAPCHECK |
| 47 | |
| 48 | #define H_T0_Clean_Window trap_clean |
| 49 | |
| 50 | #define H_T0_Window_Spill_0_Normal_Trap trap_spill |
| 51 | #define H_T0_Window_Spill_1_Normal_Trap trap_spill |
| 52 | #define H_T0_Window_Spill_2_Normal_Trap trap_spill |
| 53 | #define H_T0_Window_Spill_3_Normal_Trap trap_spill |
| 54 | #define H_T0_Window_Spill_4_Normal_Trap trap_spill |
| 55 | #define H_T0_Window_Spill_5_Normal_Trap trap_spill |
| 56 | #define H_T0_Window_Spill_6_Normal_Trap trap_spill |
| 57 | #define H_T0_Window_Spill_7_Normal_Trap trap_spill |
| 58 | |
| 59 | #define H_T0_Window_Spill_0_Other_Trap trap_spill |
| 60 | #define H_T0_Window_Spill_1_Other_Trap trap_spill |
| 61 | #define H_T0_Window_Spill_2_Other_Trap trap_spill |
| 62 | #define H_T0_Window_Spill_3_Other_Trap trap_spill |
| 63 | #define H_T0_Window_Spill_4_Other_Trap trap_spill |
| 64 | #define H_T0_Window_Spill_5_Other_Trap trap_spill |
| 65 | #define H_T0_Window_Spill_6_Other_Trap trap_spill |
| 66 | #define H_T0_Window_Spill_7_Other_Trap trap_spill |
| 67 | |
| 68 | #define H_T0_Window_Fill_0_Normal_Trap trap_fill |
| 69 | #define H_T0_Window_Fill_1_Normal_Trap trap_fill |
| 70 | #define H_T0_Window_Fill_2_Normal_Trap trap_fill |
| 71 | #define H_T0_Window_Fill_3_Normal_Trap trap_fill |
| 72 | #define H_T0_Window_Fill_4_Normal_Trap trap_fill |
| 73 | #define H_T0_Window_Fill_5_Normal_Trap trap_fill |
| 74 | #define H_T0_Window_Fill_6_Normal_Trap trap_fill |
| 75 | #define H_T0_Window_Fill_7_Normal_Trap trap_fill |
| 76 | |
| 77 | #define H_T0_Window_Fill_0_Other_Trap trap_fill |
| 78 | #define H_T0_Window_Fill_1_Other_Trap trap_fill |
| 79 | #define H_T0_Window_Fill_2_Other_Trap trap_fill |
| 80 | #define H_T0_Window_Fill_3_Other_Trap trap_fill |
| 81 | #define H_T0_Window_Fill_4_Other_Trap trap_fill |
| 82 | #define H_T0_Window_Fill_5_Other_Trap trap_fill |
| 83 | #define H_T0_Window_Fill_6_Other_Trap trap_fill |
| 84 | #define H_T0_Window_Fill_7_Other_Trap trap_fill |
| 85 | |
| 86 | |
| 87 | |
| 88 | /***********************************************************************/ |
| 89 | #define MAIN_PAGE_HV_ALSO |
| 90 | #define MAIN_PAGE_NUCLEUS_ALSO |
| 91 | #define THREAD_COUNT 8 |
| 92 | #define THREAD_STRIDE 1 |
| 93 | #include "hboot.s" |
| 94 | |
| 95 | .global main |
| 96 | main: |
| 97 | th_fork(th_main,%l0) ! start up to four threads. |
| 98 | ! No need to run more than one core. |
| 99 | ! All threads do the same thing, except for this one bit of setup... |
| 100 | th_main_0: |
| 101 | ! SAS mismatches on version reg...grumble grumble |
| 102 | mov 7,%g4 |
| 103 | ! ta T_CHANGE_HPRIV |
| 104 | !rdhpr %ver,%g4 ! get VERSION (NWINDOWS-1) |
| 105 | !ta T_CHANGE_NONHPRIV |
| 106 | !and %g4,H_VERSION_MAXWIN_MASK,%g4 |
| 107 | |
| 108 | set max_win,%l1 |
| 109 | stx %g4,[%l1] ! save max_win value for later |
| 110 | ba th_main_all |
| 111 | nop |
| 112 | |
| 113 | th_main_1: |
| 114 | th_main_2: |
| 115 | th_main_3: |
| 116 | th_main_4: |
| 117 | th_main_5: |
| 118 | th_main_6: |
| 119 | th_main_7: |
| 120 | mov 7,%g4 |
| 121 | ! ta T_CHANGE_HPRIV |
| 122 | !rdhpr %ver,%g4 ! get VERSION (NWINDOWS-1) |
| 123 | !ta T_CHANGE_NONHPRIV |
| 124 | and %g4,H_VERSION_MAXWIN_MASK,%g4 |
| 125 | |
| 126 | set max_win,%l1 |
| 127 | stx %g4,[%l1] ! save max_win value for later |
| 128 | ba th_main_all |
| 129 | nop |
| 130 | |
| 131 | |
| 132 | th_main_all: |
| 133 | ! place the window number, tid, and register number (r8-r23) in the local |
| 134 | ! and out registers of each register window. |
| 135 | ! Values in the form 00ttwwrr 00000000, ensure each register |
| 136 | ! has a unique value. Lower half of register will be used as a counter. |
| 137 | sethi %hi(0x80000000),%g1 |
| 138 | sllx %g1,4,%g1 ! base reg number in bits 39 to 32 |
| 139 | sllx %l0,48,%l0 |
| 140 | or %l0,%g1,%g1 ! thread id in bits 55 to 48 |
| 141 | sethi %hi(0x10000000),%g2 |
| 142 | sllx %g2,4,%g2 ! reg increment |
| 143 | add %g0,1,%g3 |
| 144 | sllx %g3,40,%g3 ! window increment in bit 40 |
| 145 | |
| 146 | ! read current CWP, CANRESTORE, just fyi. |
| 147 | ! add one to CANSAVE to allow init of last window's regs |
| 148 | ta T_CHANGE_PRIV |
| 149 | rdpr %cwp,%g5 |
| 150 | rdpr %cansave,%g6 |
| 151 | wrpr %g4,0,%cansave ! set CANSAVE = maxwin |
| 152 | rdpr %canrestore,%g7 |
| 153 | ta T_CHANGE_NONPRIV |
| 154 | |
| 155 | reg_init: |
| 156 | add %g0,%g1,%r8 |
| 157 | add %r8,%g2,%r9 |
| 158 | add %r9,%g2,%r10 |
| 159 | add %r10,%g2,%r11 |
| 160 | add %r11,%g2,%r12 |
| 161 | add %r12,%g2,%r13 |
| 162 | add %r13,%g2,%r14 |
| 163 | add %r14,%g2,%r15 |
| 164 | add %r15,%g2,%r16 |
| 165 | add %r16,%g2,%r17 |
| 166 | add %r17,%g2,%r18 |
| 167 | add %r18,%g2,%r19 |
| 168 | add %r19,%g2,%r20 |
| 169 | add %r20,%g2,%r21 |
| 170 | add %r21,%g2,%r22 |
| 171 | add %r22,%g2,%r23 |
| 172 | brz %g4,reg_init_done |
| 173 | sub %g4,1,%g4 |
| 174 | save %g3,%g1,%g1 ! increment window field of g1, next window |
| 175 | ba reg_init |
| 176 | nop |
| 177 | |
| 178 | reg_init_done: |
| 179 | set max_win,%g1 |
| 180 | ldx [%g1],%g4 |
| 181 | |
| 182 | !!********************************************************************* |
| 183 | !! save 1: OTHERWIN = 0, WSTATE.NORMAL=0 |
| 184 | !!********************************************************************* |
| 185 | sub %g4,1,%g5 |
| 186 | ta T_CHANGE_PRIV |
| 187 | wrpr %g0,0,%cwp ! CWP = 0 |
| 188 | wrpr %g5,0,%cansave ! CANSAVE = maxwin-1 |
| 189 | wrpr %g0,0,%canrestore ! CANRESTORE = 0 |
| 190 | wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin |
| 191 | wrpr %g0,0,%otherwin |
| 192 | wrpr %g0,0,%wstate |
| 193 | ta T_CHANGE_NONPRIV |
| 194 | add %g0,FINISH_DONE,%g7 |
| 195 | add %g0,TRAP_NOT_TAKEN,%g6 |
| 196 | save1: |
| 197 | save %o0,1,%i0 ! effectively x++ |
| 198 | brlz %g6,save1_done |
| 199 | nop |
| 200 | add %i1,1,%i1 |
| 201 | ! add %l1,1,%l1 ! l1 and o1 are unpredictable for SAVE, so do not |
| 202 | ! add %o1,1,%o1 ! mess with them. SAS will pick up rtl mismatch |
| 203 | ba save1 |
| 204 | nop |
| 205 | save1_done: |
| 206 | |
| 207 | !!********************************************************************* |
| 208 | !! save 2: OTHERWIN = 0, WSTATE.NORMAL=1 |
| 209 | !!********************************************************************* |
| 210 | sub %g4,2,%g5 |
| 211 | ta T_CHANGE_PRIV |
| 212 | wrpr %g4,0,%cwp ! CWP = maxwin |
| 213 | wrpr %g0,3,%cansave ! CANSAVE = 3 |
| 214 | wrpr %g0,1,%canrestore ! CANRESTORE = 1 |
| 215 | wrpr %g5,0,%cleanwin ! CLEANWIN = maxwin-2 |
| 216 | wrpr %g0,0,%otherwin |
| 217 | wrpr %g0,1,%wstate |
| 218 | ta T_CHANGE_NONPRIV |
| 219 | add %g0,FINISH_DONE,%g7 |
| 220 | add %g0,TRAP_NOT_TAKEN,%g6 |
| 221 | save2: |
| 222 | save %o0,1,%i0 ! effectively x++ |
| 223 | brlz %g6,save2_done |
| 224 | nop |
| 225 | add %i2,1,%i2 |
| 226 | ba save2 |
| 227 | nop |
| 228 | save2_done: |
| 229 | |
| 230 | !!********************************************************************* |
| 231 | !! save 3: OTHERWIN = 0, WSTATE.NORMAL=2 |
| 232 | !!********************************************************************* |
| 233 | sub %g4,2,%g5 |
| 234 | ta T_CHANGE_PRIV |
| 235 | wrpr %g5,0,%cwp ! CWP = maxwin-2 |
| 236 | wrpr %g0,4,%cansave ! CANSAVE = 4 |
| 237 | wrpr %g0,2,%canrestore ! CANRESTORE = 2 |
| 238 | wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin |
| 239 | wrpr %g0,0,%otherwin |
| 240 | wrpr %g0,2,%wstate |
| 241 | ta T_CHANGE_NONPRIV |
| 242 | add %g0,FINISH_DONE,%g7 |
| 243 | add %g0,TRAP_NOT_TAKEN,%g6 |
| 244 | save3: |
| 245 | save %o0,1,%i0 ! effectively x++ |
| 246 | brlz %g6,save3_done |
| 247 | nop |
| 248 | add %i3,1,%i3 |
| 249 | ba save3 |
| 250 | nop |
| 251 | save3_done: |
| 252 | |
| 253 | !!********************************************************************* |
| 254 | !! save 4: OTHERWIN = 0, WSTATE.NORMAL=3 |
| 255 | !!********************************************************************* |
| 256 | ta T_CHANGE_PRIV |
| 257 | wrpr %g0,1,%cwp ! CWP = 1 |
| 258 | wrpr %g0,1,%cansave ! CANSAVE = 1 |
| 259 | wrpr %g0,0,%canrestore ! CANRESTORE = 0 |
| 260 | wrpr %g0,2,%cleanwin ! CLEANWIN = 2 |
| 261 | wrpr %g0,0,%otherwin |
| 262 | wrpr %g0,3,%wstate |
| 263 | ta T_CHANGE_NONPRIV |
| 264 | add %g0,FINISH_DONE,%g7 |
| 265 | add %g0,TRAP_NOT_TAKEN,%g6 |
| 266 | save4: |
| 267 | save %o0,1,%i0 ! effectively x++ |
| 268 | brlz %g6,save4_done |
| 269 | nop |
| 270 | add %i4,1,%i4 |
| 271 | ba save4 |
| 272 | nop |
| 273 | save4_done: |
| 274 | |
| 275 | !!********************************************************************* |
| 276 | !! save 5: OTHERWIN = 0, WSTATE.NORMAL=4 |
| 277 | !!********************************************************************* |
| 278 | ta T_CHANGE_PRIV |
| 279 | wrpr %g0,1,%cwp ! CWP = 1 |
| 280 | wrpr %g0,0,%cansave ! CANSAVE = 0 |
| 281 | wrpr %g0,1,%canrestore ! CANRESTORE = 1 |
| 282 | wrpr %g0,2,%cleanwin ! CLEANWIN = 2 |
| 283 | wrpr %g0,0,%otherwin |
| 284 | wrpr %g0,0x34,%wstate |
| 285 | ta T_CHANGE_NONPRIV |
| 286 | add %g0,FINISH_DONE,%g7 |
| 287 | add %g0,TRAP_NOT_TAKEN,%g6 |
| 288 | save5: |
| 289 | save %o0,1,%i0 ! effectively x++ |
| 290 | brlz %g6,save5_done |
| 291 | nop |
| 292 | add %i5,1,%i5 |
| 293 | ba save5 |
| 294 | nop |
| 295 | save5_done: |
| 296 | |
| 297 | !!********************************************************************* |
| 298 | !! save 6: OTHERWIN = 0, WSTATE.NORMAL=5 |
| 299 | !!********************************************************************* |
| 300 | sub %g4,2,%g5 |
| 301 | ta T_CHANGE_PRIV |
| 302 | wrpr %g5,0,%cwp ! CWP = maxwin-2 |
| 303 | wrpr %g0,2,%cansave ! CANSAVE = 2 |
| 304 | wrpr %g0,0,%canrestore ! CANRESTORE = 0 |
| 305 | wrpr %g0,4,%cleanwin ! CLEANWIN = 4 |
| 306 | wrpr %g0,0,%otherwin |
| 307 | wrpr %g0,0x3b,%wstate |
| 308 | ta T_CHANGE_NONPRIV |
| 309 | add %g0,FINISH_DONE,%g7 |
| 310 | add %g0,TRAP_NOT_TAKEN,%g6 |
| 311 | save6: |
| 312 | save %o0,1,%i0 ! effectively x++ |
| 313 | brlz %g6,save6_done |
| 314 | nop |
| 315 | add %i6,1,%i6 |
| 316 | ba save6 |
| 317 | nop |
| 318 | save6_done: |
| 319 | |
| 320 | !!********************************************************************* |
| 321 | !! save 7: OTHERWIN = 0, WSTATE.NORMAL=6 |
| 322 | !!********************************************************************* |
| 323 | ta T_CHANGE_PRIV |
| 324 | wrpr %g0,1,%cwp ! CWP = 1 |
| 325 | wrpr %g0,2,%cansave ! CANSAVE = 2 |
| 326 | wrpr %g0,4,%canrestore ! CANRESTORE = 0 |
| 327 | wrpr %g0,7,%cleanwin ! CLEANWIN = 7 |
| 328 | wrpr %g0,0,%otherwin |
| 329 | wrpr %g0,6,%wstate |
| 330 | ta T_CHANGE_NONPRIV |
| 331 | add %g0,FINISH_DONE,%g7 |
| 332 | add %g0,TRAP_NOT_TAKEN,%g6 |
| 333 | save7: |
| 334 | save %o0,1,%i0 ! effectively x++ |
| 335 | brlz %g6,save7_done |
| 336 | nop |
| 337 | add %i7,1,%i7 |
| 338 | ba save7 |
| 339 | nop |
| 340 | save7_done: |
| 341 | |
| 342 | !!********************************************************************* |
| 343 | !! save 8: OTHERWIN = 0, WSTATE.NORMAL=7 |
| 344 | !!********************************************************************* |
| 345 | sub %g4,2,%g5 |
| 346 | ta T_CHANGE_PRIV |
| 347 | wrpr %g4,0,%cwp ! CWP = maxwin |
| 348 | wrpr %g0,0,%cansave ! CANSAVE = 0 |
| 349 | wrpr %g0,1,%canrestore ! CANRESTORE = 1 |
| 350 | wrpr %g5,0,%cleanwin ! CLEANWIN = maxwin-2 |
| 351 | wrpr %g0,0,%otherwin |
| 352 | wrpr %g0,7,%wstate |
| 353 | ta T_CHANGE_NONPRIV |
| 354 | add %g0,FINISH_DONE,%g7 |
| 355 | add %g0,TRAP_NOT_TAKEN,%g6 |
| 356 | save8: |
| 357 | save %o0,1,%i0 ! effectively x++ |
| 358 | brlz %g6,save8_done |
| 359 | nop |
| 360 | add %i1,1,%i1 |
| 361 | ba save8 |
| 362 | nop |
| 363 | save8_done: |
| 364 | |
| 365 | !!********************************************************************* |
| 366 | !! save 9: OTHERWIN = 1, WSTATE.OTHER=0 |
| 367 | !!********************************************************************* |
| 368 | sub %g4,2,%g5 |
| 369 | ta T_CHANGE_PRIV |
| 370 | wrpr %g5,0,%cwp ! CWP = maxwin-2 |
| 371 | wrpr %g5,0,%cansave ! CANSAVE = maxwin-2 |
| 372 | wrpr %g0,0,%canrestore ! CANRESTORE = 0 |
| 373 | wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin |
| 374 | wrpr %g0,1,%otherwin |
| 375 | wrpr %g0,0,%wstate |
| 376 | ta T_CHANGE_NONPRIV |
| 377 | add %g0,FINISH_DONE,%g7 |
| 378 | add %g0,TRAP_NOT_TAKEN,%g6 |
| 379 | save9: |
| 380 | save %o0,1,%i0 ! effectively x++ |
| 381 | brlz %g6,save9_done |
| 382 | nop |
| 383 | add %i2,1,%i2 |
| 384 | ba save9 |
| 385 | nop |
| 386 | save9_done: |
| 387 | |
| 388 | !!********************************************************************* |
| 389 | !! save 10: OTHERWIN = 1, WSTATE.OTHER=1 |
| 390 | !!********************************************************************* |
| 391 | ta T_CHANGE_PRIV |
| 392 | wrpr %g0,2,%cwp ! CWP = 2 |
| 393 | wrpr %g0,3,%cansave ! CANSAVE = 3 |
| 394 | wrpr %g0,1,%canrestore ! CANRESTORE = 1 |
| 395 | wrpr %g0,5,%cleanwin ! CLEANWIN = 5 |
| 396 | wrpr %g0,1,%otherwin |
| 397 | wrpr %g0,8,%wstate |
| 398 | ta T_CHANGE_NONPRIV |
| 399 | add %g0,FINISH_DONE,%g7 |
| 400 | add %g0,TRAP_NOT_TAKEN,%g6 |
| 401 | save10: |
| 402 | save %o0,1,%i0 ! effectively x++ |
| 403 | brlz %g6,save10_done |
| 404 | nop |
| 405 | add %i3,1,%i3 |
| 406 | ba save10 |
| 407 | nop |
| 408 | save10_done: |
| 409 | |
| 410 | !!********************************************************************* |
| 411 | !! save 11: OTHERWIN = 1, WSTATE.OTHER=2 |
| 412 | !!********************************************************************* |
| 413 | ta T_CHANGE_PRIV |
| 414 | wrpr %g0,3,%cwp ! CWP = 3 |
| 415 | wrpr %g0,1,%cansave ! CANSAVE = 1 |
| 416 | wrpr %g0,2,%canrestore ! CANRESTORE = 2 |
| 417 | wrpr %g0,4,%cleanwin ! CLEANWIN = 4 |
| 418 | wrpr %g0,1,%otherwin |
| 419 | wrpr %g0,0x10,%wstate |
| 420 | ta T_CHANGE_NONPRIV |
| 421 | add %g0,FINISH_DONE,%g7 |
| 422 | add %g0,TRAP_NOT_TAKEN,%g6 |
| 423 | save11: |
| 424 | save %o0,1,%i0 ! effectively x++ |
| 425 | brlz %g6,save11_done |
| 426 | nop |
| 427 | add %i4,1,%i4 |
| 428 | ba save11 |
| 429 | nop |
| 430 | save11_done: |
| 431 | |
| 432 | !!********************************************************************* |
| 433 | !! save 12: OTHERWIN = 1, WSTATE.OTHER=3 |
| 434 | !!********************************************************************* |
| 435 | ta T_CHANGE_PRIV |
| 436 | wrpr %g0,4,%cwp ! CWP = 4 |
| 437 | wrpr %g0,1,%cansave ! CANSAVE = 1 |
| 438 | wrpr %g0,0,%canrestore ! CANRESTORE = 0 |
| 439 | wrpr %g0,3,%cleanwin ! CLEANWIN = 3 |
| 440 | wrpr %g0,1,%otherwin |
| 441 | wrpr %g0,0x18,%wstate |
| 442 | ta T_CHANGE_NONPRIV |
| 443 | add %g0,FINISH_DONE,%g7 |
| 444 | add %g0,TRAP_NOT_TAKEN,%g6 |
| 445 | save12: |
| 446 | save %o0,1,%i0 ! effectively x++ |
| 447 | brlz %g6,save12_done |
| 448 | nop |
| 449 | add %i5,1,%i5 |
| 450 | ba save12 |
| 451 | nop |
| 452 | save12_done: |
| 453 | |
| 454 | !!********************************************************************* |
| 455 | !! save 12: OTHERWIN = 1, WSTATE.OTHER=4 |
| 456 | !!********************************************************************* |
| 457 | ta T_CHANGE_PRIV |
| 458 | wrpr %g0,5,%cwp ! CWP = 5 |
| 459 | wrpr %g0,1,%cansave ! CANSAVE = 1 |
| 460 | wrpr %g0,3,%canrestore ! CANRESTORE = 3 |
| 461 | wrpr %g0,7,%cleanwin ! CLEANWIN = 7 |
| 462 | wrpr %g0,1,%otherwin |
| 463 | wrpr %g0,0x20,%wstate |
| 464 | ta T_CHANGE_NONPRIV |
| 465 | add %g0,FINISH_DONE,%g7 |
| 466 | add %g0,TRAP_NOT_TAKEN,%g6 |
| 467 | save13: |
| 468 | save %o0,1,%i0 ! effectively x++ |
| 469 | brlz %g6,save13_done |
| 470 | nop |
| 471 | add %i6,1,%i6 |
| 472 | ba save13 |
| 473 | nop |
| 474 | save13_done: |
| 475 | |
| 476 | !!********************************************************************* |
| 477 | !! save 14: OTHERWIN = 1, WSTATE.OTHER=5 |
| 478 | !!********************************************************************* |
| 479 | ta T_CHANGE_PRIV |
| 480 | wrpr %g0,6,%cwp ! CWP = 6 |
| 481 | wrpr %g0,1,%cansave ! CANSAVE = 1 |
| 482 | wrpr %g0,0,%canrestore ! CANRESTORE = 0 |
| 483 | wrpr %g0,4,%cleanwin ! CLEANWIN = 4 |
| 484 | wrpr %g0,1,%otherwin |
| 485 | wrpr %g0,0x29,%wstate |
| 486 | ta T_CHANGE_NONPRIV |
| 487 | add %g0,FINISH_DONE,%g7 |
| 488 | add %g0,TRAP_NOT_TAKEN,%g6 |
| 489 | save14: |
| 490 | save %o0,1,%i0 ! effectively x++ |
| 491 | brlz %g6,save14_done |
| 492 | nop |
| 493 | add %i7,1,%i7 |
| 494 | ba save14 |
| 495 | nop |
| 496 | save14_done: |
| 497 | |
| 498 | !!********************************************************************* |
| 499 | !! save 15: OTHERWIN = 1, WSTATE.OTHER=6 |
| 500 | !!********************************************************************* |
| 501 | ta T_CHANGE_PRIV |
| 502 | wrpr %g0,0,%cwp ! CWP = 0 |
| 503 | wrpr %g0,0,%cansave ! CANSAVE = 0 |
| 504 | wrpr %g0,0,%canrestore ! CANRESTORE = 0 |
| 505 | wrpr %g0,1,%cleanwin ! CLEANWIN = 1 |
| 506 | wrpr %g0,1,%otherwin |
| 507 | wrpr %g0,0x30,%wstate |
| 508 | ta T_CHANGE_NONPRIV |
| 509 | add %g0,FINISH_DONE,%g7 |
| 510 | add %g0,TRAP_NOT_TAKEN,%g6 |
| 511 | save15: |
| 512 | save %o0,1,%i0 ! effectively x++ |
| 513 | brlz %g6,save15_done |
| 514 | nop |
| 515 | add %i1,1,%i1 |
| 516 | ba save15 |
| 517 | nop |
| 518 | save15_done: |
| 519 | |
| 520 | !!********************************************************************* |
| 521 | !! save 16: OTHERWIN = 1, WSTATE.OTHER=7 |
| 522 | !!********************************************************************* |
| 523 | sub %g4,1,%g5 |
| 524 | ta T_CHANGE_PRIV |
| 525 | wrpr %g4,0,%cwp ! CWP = maxwin |
| 526 | wrpr %g0,0,%cansave ! CANSAVE = 0 |
| 527 | wrpr %g5,0,%canrestore ! CANRESTORE = maxwin-1 |
| 528 | wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin |
| 529 | wrpr %g0,1,%otherwin |
| 530 | wrpr %g0,0x3e,%wstate |
| 531 | ta T_CHANGE_NONPRIV |
| 532 | add %g0,FINISH_DONE,%g7 |
| 533 | add %g0,TRAP_NOT_TAKEN,%g6 |
| 534 | save16: |
| 535 | save %o0,1,%i0 ! effectively x++ |
| 536 | brlz %g6,save16_done |
| 537 | nop |
| 538 | add %i2,1,%i2 |
| 539 | ba save16 |
| 540 | nop |
| 541 | save16_done: |
| 542 | |
| 543 | !!********************************************************************* |
| 544 | !!********************************************************************* |
| 545 | !! restore 0: OTHERWIN = 0, WSTATE.NORMAL=0 |
| 546 | !!********************************************************************* |
| 547 | sub %g4,1,%g5 |
| 548 | ta T_CHANGE_PRIV |
| 549 | wrpr %g0,0,%cwp ! CWP = 0 |
| 550 | wrpr %g0,0,%cansave ! CANSAVE = 0 |
| 551 | wrpr %g5,0,%canrestore ! CANRESTORE = maxwin-1 |
| 552 | wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin |
| 553 | wrpr %g0,0,%otherwin |
| 554 | wrpr %g0,0,%wstate |
| 555 | ta T_CHANGE_NONPRIV |
| 556 | add %g0,FINISH_DONE,%g7 |
| 557 | add %g0,TRAP_NOT_TAKEN,%g6 |
| 558 | rest0: |
| 559 | restore %i0,1,%o0 ! effectively x++ |
| 560 | brlz %g6,rest0_done |
| 561 | nop |
| 562 | add %i3,1,%i3 ! restore, all three regs blocks must match |
| 563 | add %l3,1,%l3 |
| 564 | add %o3,1,%o3 |
| 565 | ba rest0 |
| 566 | nop |
| 567 | rest0_done: |
| 568 | |
| 569 | !!********************************************************************* |
| 570 | !! restore 1: OTHERWIN = 0, WSTATE.NORMAL=1 |
| 571 | !!********************************************************************* |
| 572 | ta T_CHANGE_PRIV |
| 573 | wrpr %g4,0,%cwp ! CWP = maxwin |
| 574 | wrpr %g0,1,%cansave ! CANSAVE = 1 |
| 575 | wrpr %g0,1,%canrestore ! CANRESTORE = 1 |
| 576 | wrpr %g0,0,%cleanwin ! CLEANWIN = 0 |
| 577 | wrpr %g0,0,%otherwin |
| 578 | wrpr %g0,0,%wstate |
| 579 | ta T_CHANGE_NONPRIV |
| 580 | add %g0,FINISH_DONE,%g7 |
| 581 | add %g0,TRAP_NOT_TAKEN,%g6 |
| 582 | rest1: |
| 583 | restore %i0,1,%o0 ! effectively x++ |
| 584 | brlz %g6,rest1_done |
| 585 | nop |
| 586 | add %i3,1,%i3 ! restore, all three regs blocks must match |
| 587 | add %l3,1,%l3 |
| 588 | add %o3,1,%o3 |
| 589 | ba rest1 |
| 590 | nop |
| 591 | rest1_done: |
| 592 | |
| 593 | !!********************************************************************* |
| 594 | !! restore 2: OTHERWIN = 0, WSTATE.NORMAL=2 |
| 595 | !!********************************************************************* |
| 596 | ta T_CHANGE_PRIV |
| 597 | wrpr %g0,0,%cwp ! CWP = 0 |
| 598 | wrpr %g0,0,%cansave ! CANSAVE = 0 |
| 599 | wrpr %g0,0,%canrestore ! CANRESTORE = 0 |
| 600 | wrpr %g0,3,%cleanwin ! CLEANWIN = 3 |
| 601 | wrpr %g0,0,%otherwin |
| 602 | wrpr %g0,1,%wstate |
| 603 | ta T_CHANGE_NONPRIV |
| 604 | add %g0,FINISH_DONE,%g7 |
| 605 | add %g0,TRAP_NOT_TAKEN,%g6 |
| 606 | rest2: |
| 607 | restore %i0,1,%o0 ! effectively x++ |
| 608 | brlz %g6,rest2_done |
| 609 | nop |
| 610 | add %i3,1,%i3 ! restore, all three regs blocks must match |
| 611 | add %l3,1,%l3 |
| 612 | add %o3,1,%o3 |
| 613 | ba rest2 |
| 614 | nop |
| 615 | rest2_done: |
| 616 | |
| 617 | !!********************************************************************* |
| 618 | !! restore 3: OTHERWIN = 0, WSTATE.NORMAL=3 |
| 619 | !!********************************************************************* |
| 620 | ta T_CHANGE_PRIV |
| 621 | wrpr %g0,2,%cwp ! CWP = 2 |
| 622 | wrpr %g0,3,%cansave ! CANSAVE = 3 |
| 623 | wrpr %g0,1,%canrestore ! CANRESTORE = 1 |
| 624 | wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin |
| 625 | wrpr %g0,0,%otherwin |
| 626 | wrpr %g0,3,%wstate |
| 627 | ta T_CHANGE_NONPRIV |
| 628 | add %g0,FINISH_DONE,%g7 |
| 629 | add %g0,TRAP_NOT_TAKEN,%g6 |
| 630 | rest3: |
| 631 | restore %i0,1,%o0 ! effectively x++ |
| 632 | brlz %g6,rest3_done |
| 633 | nop |
| 634 | add %i3,1,%i3 ! restore, all three regs blocks must match |
| 635 | add %l3,1,%l3 |
| 636 | add %o3,1,%o3 |
| 637 | ba rest3 |
| 638 | nop |
| 639 | rest3_done: |
| 640 | |
| 641 | !!********************************************************************* |
| 642 | !! restore 4: OTHERWIN = 0, WSTATE.NORMAL=4 |
| 643 | !!********************************************************************* |
| 644 | sub %g4,1,%g5 |
| 645 | ta T_CHANGE_PRIV |
| 646 | wrpr %g0,1,%cwp ! CWP = 1 |
| 647 | wrpr %g0,0,%cansave ! CANSAVE = 0 |
| 648 | wrpr %g0,3,%canrestore ! CANRESTORE = 3 |
| 649 | wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin |
| 650 | wrpr %g0,0,%otherwin |
| 651 | wrpr %g0,4,%wstate |
| 652 | ta T_CHANGE_NONPRIV |
| 653 | add %g0,FINISH_DONE,%g7 |
| 654 | add %g0,TRAP_NOT_TAKEN,%g6 |
| 655 | rest4: |
| 656 | restore %i0,1,%o0 ! effectively x++ |
| 657 | brlz %g6,rest4_done |
| 658 | nop |
| 659 | add %i3,1,%i3 ! restore, all three regs blocks must match |
| 660 | add %l3,1,%l3 |
| 661 | add %o3,1,%o3 |
| 662 | ba rest4 |
| 663 | nop |
| 664 | rest4_done: |
| 665 | |
| 666 | !!********************************************************************* |
| 667 | !! restore 5: OTHERWIN = 0, WSTATE.NORMAL=5 |
| 668 | !!********************************************************************* |
| 669 | sub %g4,1,%g5 |
| 670 | ta T_CHANGE_PRIV |
| 671 | wrpr %g5,0,%cwp ! CWP = maxwin-1 |
| 672 | wrpr %g0,0,%cansave ! CANSAVE = 0 |
| 673 | wrpr %g0,3,%canrestore ! CANRESTORE = 3 |
| 674 | wrpr %g0,0,%cleanwin ! CLEANWIN = 0, not checked on restore |
| 675 | wrpr %g0,0,%otherwin |
| 676 | wrpr %g0,5,%wstate |
| 677 | ta T_CHANGE_NONPRIV |
| 678 | add %g0,FINISH_DONE,%g7 |
| 679 | add %g0,TRAP_NOT_TAKEN,%g6 |
| 680 | rest5: |
| 681 | restore %i0,1,%o0 ! effectively x++ |
| 682 | brlz %g6,rest5_done |
| 683 | nop |
| 684 | add %i3,1,%i3 ! restore, all three regs blocks must match |
| 685 | add %l3,1,%l3 |
| 686 | add %o3,1,%o3 |
| 687 | ba rest5 |
| 688 | nop |
| 689 | rest5_done: |
| 690 | |
| 691 | !!********************************************************************* |
| 692 | !! restore 6: OTHERWIN = 0, WSTATE.NORMAL=6 |
| 693 | !!********************************************************************* |
| 694 | ta T_CHANGE_PRIV |
| 695 | wrpr %g4,0,%cwp ! CWP = maxwin |
| 696 | wrpr %g0,1,%cansave ! CANSAVE = 1 |
| 697 | wrpr %g0,0,%canrestore ! CANRESTORE = 0 |
| 698 | wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin |
| 699 | wrpr %g0,0,%otherwin |
| 700 | wrpr %g0,6,%wstate |
| 701 | ta T_CHANGE_NONPRIV |
| 702 | add %g0,FINISH_DONE,%g7 |
| 703 | add %g0,TRAP_NOT_TAKEN,%g6 |
| 704 | rest6: |
| 705 | restore %i0,1,%o0 ! effectively x++ |
| 706 | brlz %g6,rest6_done |
| 707 | nop |
| 708 | add %i3,1,%i3 ! restore, all three regs blocks must match |
| 709 | add %l3,1,%l3 |
| 710 | add %o3,1,%o3 |
| 711 | ba rest6 |
| 712 | nop |
| 713 | rest6_done: |
| 714 | |
| 715 | !!********************************************************************* |
| 716 | !! restore 7: OTHERWIN = 0, WSTATE.NORMAL=7 |
| 717 | !!********************************************************************* |
| 718 | ta T_CHANGE_PRIV |
| 719 | wrpr %g4,0,%cwp ! CWP = maxwin |
| 720 | wrpr %g0,0,%cansave ! CANSAVE = 0 |
| 721 | wrpr %g0,1,%canrestore ! CANRESTORE = 1 |
| 722 | wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin |
| 723 | wrpr %g0,0,%otherwin |
| 724 | wrpr %g0,7,%wstate |
| 725 | ta T_CHANGE_NONPRIV |
| 726 | add %g0,FINISH_DONE,%g7 |
| 727 | add %g0,TRAP_NOT_TAKEN,%g6 |
| 728 | rest7: |
| 729 | restore %i0,1,%o0 ! effectively x++ |
| 730 | brlz %g6,rest7_done |
| 731 | nop |
| 732 | add %i3,1,%i3 ! restore, all three regs blocks must match |
| 733 | add %l3,1,%l3 |
| 734 | add %o3,1,%o3 |
| 735 | ba rest7 |
| 736 | nop |
| 737 | rest7_done: |
| 738 | |
| 739 | !!********************************************************************* |
| 740 | !! restore 8: OTHERWIN = 1, WSTATE.OTHER=0 |
| 741 | !!********************************************************************* |
| 742 | sub %g4,1,%g5 |
| 743 | ta T_CHANGE_PRIV |
| 744 | wrpr %g5,0,%cwp ! CWP = maxwin-1 |
| 745 | wrpr %g0,0,%cansave ! CANSAVE = 0 |
| 746 | wrpr %g0,1,%canrestore ! CANRESTORE = 1 |
| 747 | wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin |
| 748 | wrpr %g0,1,%otherwin |
| 749 | wrpr %g0,0,%wstate |
| 750 | ta T_CHANGE_NONPRIV |
| 751 | add %g0,FINISH_DONE,%g7 |
| 752 | add %g0,TRAP_NOT_TAKEN,%g6 |
| 753 | rest8: |
| 754 | restore %i0,1,%o0 ! effectively x++ |
| 755 | brlz %g6,rest8_done |
| 756 | nop |
| 757 | add %i3,1,%i3 ! restore, all three regs blocks must match |
| 758 | add %l3,1,%l3 |
| 759 | add %o3,1,%o3 |
| 760 | ba rest8 |
| 761 | nop |
| 762 | rest8_done: |
| 763 | |
| 764 | !!********************************************************************* |
| 765 | !! restore 9: OTHERWIN = 1, WSTATE.OTHER=1 |
| 766 | !!********************************************************************* |
| 767 | ta T_CHANGE_PRIV |
| 768 | wrpr %g0,3,%cwp ! CWP = 3 |
| 769 | wrpr %g0,1,%cansave ! CANSAVE = 1 |
| 770 | wrpr %g0,1,%canrestore ! CANRESTORE = 1 |
| 771 | wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin |
| 772 | wrpr %g0,1,%otherwin |
| 773 | wrpr %g0,8,%wstate |
| 774 | ta T_CHANGE_NONPRIV |
| 775 | add %g0,FINISH_DONE,%g7 |
| 776 | add %g0,TRAP_NOT_TAKEN,%g6 |
| 777 | rest9: |
| 778 | restore %i0,1,%o0 ! effectively x++ |
| 779 | brlz %g6,rest9_done |
| 780 | nop |
| 781 | add %i3,1,%i3 ! restore, all three regs blocks must match |
| 782 | add %l3,1,%l3 |
| 783 | add %o3,1,%o3 |
| 784 | ba rest9 |
| 785 | nop |
| 786 | rest9_done: |
| 787 | |
| 788 | !!********************************************************************* |
| 789 | !! restore 10: OTHERWIN = 1, WSTATE.OTHER=2 |
| 790 | !!********************************************************************* |
| 791 | sub %g4,1,%g5 |
| 792 | ta T_CHANGE_PRIV |
| 793 | wrpr %g5,0,%cwp ! CWP = maxwin-1 |
| 794 | wrpr %g0,0,%cansave ! CANSAVE = 0 |
| 795 | wrpr %g0,2,%canrestore ! CANRESTORE = 2 |
| 796 | wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin |
| 797 | wrpr %g0,1,%otherwin |
| 798 | wrpr %g0,0x10,%wstate |
| 799 | ta T_CHANGE_NONPRIV |
| 800 | add %g0,FINISH_DONE,%g7 |
| 801 | add %g0,TRAP_NOT_TAKEN,%g6 |
| 802 | rest10: |
| 803 | restore %i0,1,%o0 ! effectively x++ |
| 804 | brlz %g6,rest10_done |
| 805 | nop |
| 806 | add %i3,1,%i3 ! restore, all three regs blocks must match |
| 807 | add %l3,1,%l3 |
| 808 | add %o3,1,%o3 |
| 809 | ba rest10 |
| 810 | nop |
| 811 | rest10_done: |
| 812 | |
| 813 | !!********************************************************************* |
| 814 | !! restore 11: OTHERWIN = 1, WSTATE.OTHER=3 |
| 815 | !!********************************************************************* |
| 816 | ta T_CHANGE_PRIV |
| 817 | wrpr %g0,0,%cwp ! CWP = 0 |
| 818 | wrpr %g0,0,%cansave ! CANSAVE = 0 |
| 819 | wrpr %g0,2,%canrestore ! CANRESTORE = 2 |
| 820 | wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin |
| 821 | wrpr %g0,1,%otherwin |
| 822 | wrpr %g0,18,%wstate |
| 823 | ta T_CHANGE_NONPRIV |
| 824 | add %g0,FINISH_DONE,%g7 |
| 825 | add %g0,TRAP_NOT_TAKEN,%g6 |
| 826 | rest11: |
| 827 | restore %i0,1,%o0 ! effectively x++ |
| 828 | brlz %g6,rest11_done |
| 829 | nop |
| 830 | add %i3,1,%i3 ! restore, all three regs blocks must match |
| 831 | add %l3,1,%l3 |
| 832 | add %o3,1,%o3 |
| 833 | ba rest11 |
| 834 | nop |
| 835 | rest11_done: |
| 836 | |
| 837 | !!********************************************************************* |
| 838 | !! restore 12: OTHERWIN = 1, WSTATE.OTHER=4 |
| 839 | !!********************************************************************* |
| 840 | ta T_CHANGE_PRIV |
| 841 | wrpr %g0,2,%cwp ! CWP = 2 |
| 842 | wrpr %g0,0,%cansave ! CANSAVE = 0 |
| 843 | wrpr %g0,2,%canrestore ! CANRESTORE = 2 |
| 844 | wrpr %g0,3,%cleanwin ! CLEANWIN = 3 |
| 845 | wrpr %g0,1,%otherwin |
| 846 | wrpr %g0,0x25,%wstate |
| 847 | ta T_CHANGE_NONPRIV |
| 848 | add %g0,FINISH_DONE,%g7 |
| 849 | add %g0,TRAP_NOT_TAKEN,%g6 |
| 850 | rest12: |
| 851 | restore %i0,1,%o0 ! effectively x++ |
| 852 | brlz %g6,rest12_done |
| 853 | nop |
| 854 | add %i3,1,%i3 ! restore, all three regs blocks must match |
| 855 | add %l3,1,%l3 |
| 856 | add %o3,1,%o3 |
| 857 | ba rest12 |
| 858 | nop |
| 859 | rest12_done: |
| 860 | |
| 861 | !!********************************************************************* |
| 862 | !! restore 13: OTHERWIN = 1, WSTATE.OTHER=5 |
| 863 | !!********************************************************************* |
| 864 | ta T_CHANGE_PRIV |
| 865 | wrpr %g0,4,%cwp ! CWP = 4 |
| 866 | wrpr %g0,3,%cansave ! CANSAVE = 3 |
| 867 | wrpr %g0,3,%canrestore ! CANRESTORE = 3 |
| 868 | wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin |
| 869 | wrpr %g0,1,%otherwin |
| 870 | wrpr %g0,0x28,%wstate |
| 871 | ta T_CHANGE_NONPRIV |
| 872 | add %g0,FINISH_DONE,%g7 |
| 873 | add %g0,TRAP_NOT_TAKEN,%g6 |
| 874 | rest13: |
| 875 | restore %i0,1,%o0 ! effectively x++ |
| 876 | brlz %g6,rest13_done |
| 877 | nop |
| 878 | add %i3,1,%i3 ! restore, all three regs blocks must match |
| 879 | add %l3,1,%l3 |
| 880 | add %o3,1,%o3 |
| 881 | ba rest13 |
| 882 | nop |
| 883 | rest13_done: |
| 884 | |
| 885 | !!********************************************************************* |
| 886 | !! restore 14: OTHERWIN = 1, WSTATE.OTHER=6 |
| 887 | !!********************************************************************* |
| 888 | ta T_CHANGE_PRIV |
| 889 | wrpr %g0,0,%cwp ! CWP = 0 |
| 890 | wrpr %g0,1,%cansave ! CANSAVE = 1 |
| 891 | wrpr %g0,1,%canrestore ! CANRESTORE = 1 |
| 892 | wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin |
| 893 | wrpr %g0,1,%otherwin |
| 894 | wrpr %g0,0x30,%wstate |
| 895 | ta T_CHANGE_NONPRIV |
| 896 | add %g0,FINISH_DONE,%g7 |
| 897 | add %g0,TRAP_NOT_TAKEN,%g6 |
| 898 | rest14: |
| 899 | restore %i0,1,%o0 ! effectively x++ |
| 900 | brlz %g6,rest14_done |
| 901 | nop |
| 902 | add %i3,1,%i3 ! restore, all three regs blocks must match |
| 903 | add %l3,1,%l3 |
| 904 | add %o3,1,%o3 |
| 905 | ba rest14 |
| 906 | nop |
| 907 | rest14_done: |
| 908 | |
| 909 | !!********************************************************************* |
| 910 | !! restore 15: OTHERWIN = 1, WSTATE.OTHER=7 |
| 911 | !!********************************************************************* |
| 912 | ta T_CHANGE_PRIV |
| 913 | wrpr %g0,3,%cwp ! CWP = 3 |
| 914 | wrpr %g0,0,%cansave ! CANSAVE = 0 |
| 915 | wrpr %g0,0,%canrestore ! CANRESTORE = 0 |
| 916 | wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin |
| 917 | wrpr %g0,1,%otherwin |
| 918 | wrpr %g0,0x38,%wstate |
| 919 | ta T_CHANGE_NONPRIV |
| 920 | add %g0,FINISH_DONE,%g7 |
| 921 | add %g0,TRAP_NOT_TAKEN,%g6 |
| 922 | rest15: |
| 923 | restore %i0,1,%o0 ! effectively x++ |
| 924 | brlz %g6,rest15_done |
| 925 | nop |
| 926 | add %i3,1,%i3 ! restore, all three regs blocks must match |
| 927 | add %l3,1,%l3 |
| 928 | add %o3,1,%o3 |
| 929 | ba rest15 |
| 930 | nop |
| 931 | rest15_done: |
| 932 | |
| 933 | !!********************************************************************* |
| 934 | !!********************************************************************* |
| 935 | !! clean1: cleanwin exception when cleanwin = canrestore = 0 |
| 936 | !!********************************************************************* |
| 937 | ta T_CHANGE_PRIV |
| 938 | wrpr %g0,0,%cwp ! CWP = 0 |
| 939 | wrpr %g0,3,%cansave ! CANSAVE = 3 |
| 940 | wrpr %g0,0,%canrestore ! CANRESTORE = 0 |
| 941 | wrpr %g0,0,%cleanwin ! CLEANWIN = 0 |
| 942 | wrpr %g0,0,%otherwin |
| 943 | wrpr %g0,0,%wstate |
| 944 | ta T_CHANGE_NONPRIV |
| 945 | add %g0,FINISH_RETRY,%g7 |
| 946 | clean1: |
| 947 | save %o0,1,%i0 ! effectively x++ |
| 948 | add %i2,1,%i2 |
| 949 | |
| 950 | |
| 951 | !!********************************************************************* |
| 952 | !! clean2: cleanwin exception when cleanwin = canrestore = 1 |
| 953 | !!********************************************************************* |
| 954 | ta T_CHANGE_PRIV |
| 955 | wrpr %g0,0,%cwp ! CWP = 0 |
| 956 | wrpr %g0,3,%cansave ! CANSAVE = 3 |
| 957 | wrpr %g0,1,%canrestore ! CANRESTORE = 1 |
| 958 | wrpr %g0,1,%cleanwin ! CLEANWIN = 1 |
| 959 | wrpr %g0,1,%otherwin |
| 960 | wrpr %g0,0,%wstate |
| 961 | ta T_CHANGE_NONPRIV |
| 962 | add %g0,FINISH_RETRY,%g7 |
| 963 | clean2: |
| 964 | save %o0,1,%i0 ! effectively x++ |
| 965 | add %i2,1,%i2 |
| 966 | |
| 967 | !!********************************************************************* |
| 968 | !! clean3: save when cleanwin < canrestore. This is not architecturally |
| 969 | !! specified. Niagara will not trap. |
| 970 | !!********************************************************************* |
| 971 | ta T_CHANGE_PRIV |
| 972 | wrpr %g0,0,%cwp ! CWP = 0 |
| 973 | wrpr %g0,3,%cansave ! CANSAVE = 3 |
| 974 | wrpr %g0,2,%canrestore ! CANRESTORE = 2 |
| 975 | wrpr %g0,1,%cleanwin ! CLEANWIN = 1 |
| 976 | wrpr %g0,0,%otherwin |
| 977 | wrpr %g0,0,%wstate |
| 978 | ta T_CHANGE_NONPRIV |
| 979 | add %g0,FINISH_RETRY,%g7 |
| 980 | clean3: |
| 981 | save %o0,1,%i0 ! effectively x++ |
| 982 | add %i2,1,%i2 |
| 983 | |
| 984 | !!********************************************************************* |
| 985 | !! clean4: save when cleanwin = canrestore, and cansave = 0. |
| 986 | !! the spill trap has priority over the cleanwin trap |
| 987 | !!********************************************************************* |
| 988 | ta T_CHANGE_PRIV |
| 989 | wrpr %g0,0,%cwp ! CWP = 0 |
| 990 | wrpr %g0,0,%cansave ! CANSAVE = 0 |
| 991 | wrpr %g0,3,%canrestore ! CANRESTORE = 3 |
| 992 | wrpr %g0,3,%cleanwin ! CLEANWIN = 3 |
| 993 | wrpr %g0,0,%otherwin |
| 994 | wrpr %g0,0,%wstate |
| 995 | ta T_CHANGE_NONPRIV |
| 996 | add %g0,TRAP_NOT_TAKEN,%g6 |
| 997 | add %g0,FINISH_DONE,%g7 |
| 998 | clean4: |
| 999 | save %o0,1,%i0 ! effectively x++ |
| 1000 | add %i2,1,%i2 |
| 1001 | !! trap clean does not use g6, so if g6 has changed, the correct trap |
| 1002 | !! was taken. (Yeah, I know, this is not advertised as a self-checking |
| 1003 | !! test...) |
| 1004 | cmp %g6,TRAP_NOT_TAKEN |
| 1005 | bne clean4_ok |
| 1006 | nop |
| 1007 | ta T_BAD_TRAP |
| 1008 | nop |
| 1009 | nop |
| 1010 | clean4_ok: |
| 1011 | |
| 1012 | |
| 1013 | !!********************************************************************* |
| 1014 | !!********************************************************************* |
| 1015 | !! flush1: flush with NWINDOWS-2 = CANSAVE, should be a NOP |
| 1016 | !!********************************************************************* |
| 1017 | sub %g4,1,%g5 |
| 1018 | ta T_CHANGE_PRIV |
| 1019 | wrpr %g0,0,%cwp ! CWP = 0 |
| 1020 | wrpr %g5,0,%cansave ! CANSAVE = maxwin-1 (NWINDOWS-2) |
| 1021 | wrpr %g0,3,%canrestore ! CANRESTORE = 3 |
| 1022 | wrpr %g0,3,%cleanwin ! CLEANWIN = 3 |
| 1023 | wrpr %g0,0,%otherwin |
| 1024 | wrpr %g0,0,%wstate |
| 1025 | ta T_CHANGE_NONPRIV |
| 1026 | add %g0,TRAP_NOT_TAKEN,%g6 |
| 1027 | add %g0,FINISH_DONE,%g7 |
| 1028 | flush1: |
| 1029 | flushw |
| 1030 | add %i3,1,%i3 |
| 1031 | cmp %g6,TRAP_NOT_TAKEN |
| 1032 | be flush1_ok |
| 1033 | nop |
| 1034 | ta T_BAD_TRAP |
| 1035 | nop |
| 1036 | nop |
| 1037 | flush1_ok: |
| 1038 | |
| 1039 | !!********************************************************************* |
| 1040 | !! flush2: flush with NWINDOWS-2-CANSAVE>0, should take a spill trap |
| 1041 | !!********************************************************************* |
| 1042 | sub %g4,3,%g5 |
| 1043 | ta T_CHANGE_PRIV |
| 1044 | wrpr %g0,0,%cwp ! CWP = 0 |
| 1045 | wrpr %g5,0,%cansave ! CANSAVE = maxwin-3 |
| 1046 | wrpr %g0,1,%canrestore ! CANRESTORE = 1 |
| 1047 | wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin |
| 1048 | wrpr %g0,0,%otherwin ! OTHERWIN = 0 |
| 1049 | wrpr %g0,0,%wstate |
| 1050 | ta T_CHANGE_NONPRIV |
| 1051 | add %g0,TRAP_NOT_TAKEN,%g6 |
| 1052 | add %g0,FINISH_RETRY,%g7 |
| 1053 | flush2: |
| 1054 | flushw |
| 1055 | add %i3,1,%i3 |
| 1056 | cmp %g6,TRAP_TAKEN |
| 1057 | be flush2_ok |
| 1058 | nop |
| 1059 | ta T_BAD_TRAP |
| 1060 | nop |
| 1061 | nop |
| 1062 | flush2_ok: |
| 1063 | |
| 1064 | !!********************************************************************* |
| 1065 | !! flush3: flush with NWINDOWS-2<>CANSAVE, should take a spill trap |
| 1066 | !!********************************************************************* |
| 1067 | sub %g4,3,%g5 |
| 1068 | ta T_CHANGE_PRIV |
| 1069 | wrpr %g0,0,%cwp ! CWP = 0 |
| 1070 | wrpr %g5,0,%cansave ! CANSAVE = maxwin-3 |
| 1071 | wrpr %g0,1,%canrestore ! CANRESTORE = 1 |
| 1072 | wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin |
| 1073 | wrpr %g0,1,%otherwin ! OTHERWIN = 1 |
| 1074 | wrpr %g0,0,%wstate |
| 1075 | ta T_CHANGE_NONPRIV |
| 1076 | add %g0,TRAP_NOT_TAKEN,%g6 |
| 1077 | add %g0,FINISH_RETRY,%g7 |
| 1078 | flush3: |
| 1079 | flushw |
| 1080 | add %i3,1,%i3 |
| 1081 | cmp %g6,TRAP_TAKEN |
| 1082 | be flush3_ok |
| 1083 | nop |
| 1084 | ta T_BAD_TRAP |
| 1085 | nop |
| 1086 | nop |
| 1087 | flush3_ok: |
| 1088 | |
| 1089 | !!********************************************************************* |
| 1090 | !! flush4: flush with NWINDOWS-2<>CANSAVE, should take a spill trap |
| 1091 | !!********************************************************************* |
| 1092 | ta T_CHANGE_PRIV |
| 1093 | wrpr %g4,0,%cwp ! CWP = maxwin |
| 1094 | wrpr %g0,4,%cansave ! CANSAVE = 4 |
| 1095 | wrpr %g0,1,%canrestore ! CANRESTORE = 1 |
| 1096 | wrpr %g4,0,%cleanwin ! CLEANWIN = maxwin |
| 1097 | wrpr %g0,0,%otherwin ! OTHERWIN = 0 |
| 1098 | wrpr %g0,0,%wstate |
| 1099 | ta T_CHANGE_NONPRIV |
| 1100 | add %g0,TRAP_NOT_TAKEN,%g6 |
| 1101 | add %g0,FINISH_RETRY,%g7 |
| 1102 | flush4: |
| 1103 | flushw |
| 1104 | add %i3,1,%i3 |
| 1105 | cmp %g6,TRAP_TAKEN |
| 1106 | be flush4_ok |
| 1107 | nop |
| 1108 | ta T_BAD_TRAP |
| 1109 | nop |
| 1110 | nop |
| 1111 | flush4_ok: |
| 1112 | |
| 1113 | |
| 1114 | !!********************************************************************* |
| 1115 | !!********************************************************************* |
| 1116 | !! saved/restored cases: all these instructions do is manipulate |
| 1117 | !! cansave, canrestore, otherwin, and cleanwin values. No need |
| 1118 | !! to actually use them in a trap handler. |
| 1119 | !!********************************************************************* |
| 1120 | ta T_CHANGE_PRIV |
| 1121 | wrpr %g0,0,%cwp ! CWP = 0 |
| 1122 | wrpr %g0,0,%cansave ! CANSAVE = 0 |
| 1123 | wrpr %g0,1,%canrestore ! CANRESTORE = 1 |
| 1124 | wrpr %g0,0,%cleanwin ! CLEANWIN = 0 |
| 1125 | wrpr %g0,0,%otherwin ! OTHERWIN = 0 |
| 1126 | wrpr %g0,0,%wstate |
| 1127 | |
| 1128 | ! otherwin = 0 cases |
| 1129 | saved |
| 1130 | restored |
| 1131 | saved |
| 1132 | saved |
| 1133 | saved |
| 1134 | saved |
| 1135 | saved |
| 1136 | saved |
| 1137 | saved |
| 1138 | saved ! eight in a row |
| 1139 | restored |
| 1140 | restored |
| 1141 | restored |
| 1142 | restored |
| 1143 | restored |
| 1144 | restored |
| 1145 | restored |
| 1146 | restored ! eight in a row |
| 1147 | |
| 1148 | wrpr %g4,0,%cansave ! CANSAVE = maxwin |
| 1149 | wrpr %g4,0,%canrestore ! CANRESTORE = maxwin |
| 1150 | wrpr %g0,3,%cleanwin ! CLEANWIN = 3 |
| 1151 | wrpr %g4,0,%otherwin ! OTHERWIN = maxwin |
| 1152 | wrpr %g0,0,%wstate |
| 1153 | |
| 1154 | ! otherwin > 0 cases |
| 1155 | saved |
| 1156 | restored |
| 1157 | saved |
| 1158 | saved |
| 1159 | saved |
| 1160 | saved |
| 1161 | saved |
| 1162 | saved |
| 1163 | saved |
| 1164 | saved ! eight in a row |
| 1165 | wrpr %g4,0,%otherwin ! OTHERWIN = maxwin |
| 1166 | restored |
| 1167 | restored |
| 1168 | restored |
| 1169 | restored |
| 1170 | restored |
| 1171 | restored |
| 1172 | restored |
| 1173 | restored ! eight in a row |
| 1174 | |
| 1175 | ta T_CHANGE_NONPRIV |
| 1176 | |
| 1177 | good_end: |
| 1178 | ta T_GOOD_TRAP |
| 1179 | nop |
| 1180 | nop |
| 1181 | |
| 1182 | |
| 1183 | !========================== |
| 1184 | .data |
| 1185 | .align 0x1fff+1 |
| 1186 | |
| 1187 | max_win: .word 0, 0 |
| 1188 | |
| 1189 | |
| 1190 | |
| 1191 | |
| 1192 | |
| 1193 | /***********************************************************************/ |
| 1194 | |
| 1195 | //SECTION .CUST_TRAPS TEXT_VA=0x40000000, DATA_VA=0x41000000 |
| 1196 | |
| 1197 | //attr_text { |
| 1198 | // Name = .CUST_TRAPS, |
| 1199 | // RA = 0x40000000, |
| 1200 | // PA = ra2pa(0x40000000,0), |
| 1201 | // part_0_i_ctx_zero_tsb_config_0, |
| 1202 | // TTE_G=1, TTE_Context=0, TTE_V=1, TTE_Size=0, TTE_NFO=0, TTE_IE=0, |
| 1203 | // TTE_Soft2=0, TTE_Diag=0, TTE_Soft=0, TTE_L=0, TTE_CP=1, TTE_CV=0, |
| 1204 | // TTE_E=0, TTE_P=1, TTE_W=1 |
| 1205 | // } |
| 1206 | //attr_data { |
| 1207 | // Name = .CUST_TRAPS, |
| 1208 | // RA = 0x4100000, |
| 1209 | // PA = ra2pa(0x41000000,0), |
| 1210 | // part_0_d_ctx_zero_tsb_config_0, |
| 1211 | // TTE_G=1, TTE_Context=0, TTE_V=1, TTE_Size=0, TTE_NFO=0, TTE_IE=0, |
| 1212 | // TTE_Soft2=0, TTE_Diag=0, TTE_Soft=0, TTE_L=0, TTE_CP=1, TTE_CV=0, |
| 1213 | // TTE_E=0, TTE_P=1, TTE_W=1 |
| 1214 | // } |
| 1215 | |
| 1216 | .text |
| 1217 | |
| 1218 | // User %g7 is a parameter. if %g7=FINISH_DONE, use done, else use retry |
| 1219 | // trap_clean DOES NOT modify the user %g6 |
| 1220 | .global trap_clean |
| 1221 | trap_clean: |
| 1222 | rdpr %cwp,%g1 |
| 1223 | rdpr %cansave,%g2 |
| 1224 | rdpr %canrestore,%g3 |
| 1225 | rdpr %otherwin,%g4 |
| 1226 | rdpr %wstate,%g5 |
| 1227 | rdpr %cleanwin,%g6 |
| 1228 | wrpr %g0,0,%gl ! go back to GL=0, user global regs |
| 1229 | cmp %g7,FINISH_DONE |
| 1230 | be clean_done |
| 1231 | nop |
| 1232 | wrpr %g0,1,%gl ! restore trap global regs |
| 1233 | add %g6,1,%g6 ! cleanwin++ |
| 1234 | wrpr %g6,0,%cleanwin |
| 1235 | retry |
| 1236 | nop |
| 1237 | clean_done: |
| 1238 | done |
| 1239 | nop |
| 1240 | |
| 1241 | |
| 1242 | // User %g7 is a parameter. if %g7=FINISH_DONE, use done, else use retry |
| 1243 | // User %g6 lets test loop know that the trap was hit. |
| 1244 | .global trap_spill |
| 1245 | trap_spill: |
| 1246 | rdpr %cwp,%g1 |
| 1247 | rdpr %cansave,%g2 |
| 1248 | rdpr %canrestore,%g1 |
| 1249 | rdpr %otherwin,%g2 |
| 1250 | rdpr %wstate,%g1 |
| 1251 | rdpr %cleanwin,%g2 |
| 1252 | wrpr %g0,0,%gl ! go back to GL=0 |
| 1253 | add %g0,TRAP_TAKEN,%g6 |
| 1254 | cmp %g7,FINISH_DONE |
| 1255 | be spill_done |
| 1256 | nop |
| 1257 | saved ! used by flushw test cases |
| 1258 | retry |
| 1259 | nop |
| 1260 | spill_done: |
| 1261 | done |
| 1262 | nop |
| 1263 | |
| 1264 | // User %g7 is a parameter. if %g7=FINISH_DONE, use done, else use retry |
| 1265 | // User %g6 lets test loop know that the trap was hit. |
| 1266 | .global trap_fill |
| 1267 | trap_fill: |
| 1268 | rdpr %cwp,%g1 |
| 1269 | rdpr %cansave,%g2 |
| 1270 | rdpr %canrestore,%g1 |
| 1271 | rdpr %otherwin,%g2 |
| 1272 | rdpr %wstate,%g1 |
| 1273 | rdpr %cleanwin,%g2 |
| 1274 | wrpr %g0,0,%gl ! go back to GL=0 |
| 1275 | add %g0,TRAP_TAKEN,%g6 |
| 1276 | cmp %g7,FINISH_DONE |
| 1277 | be fill_done |
| 1278 | nop |
| 1279 | retry |
| 1280 | nop |
| 1281 | fill_done: |
| 1282 | done |
| 1283 | nop |
| 1284 | |
| 1285 | |
| 1286 | |
| 1287 | .end |