vr.c revision 1.59
1 /* $NetBSD: vr.c,v 1.59 2011/02/20 07:58:14 matt Exp $ */ 2 3 /*- 4 * Copyright (c) 1999-2002 5 * Shin Takemura and PocketBSD Project. 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 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the PocketBSD project 18 * and its contributors. 19 * 4. Neither the name of the project nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 */ 36 37 #include <sys/cdefs.h> 38 __KERNEL_RCSID(0, "$NetBSD: vr.c,v 1.59 2011/02/20 07:58:14 matt Exp $"); 39 40 #include "opt_vr41xx.h" 41 #include "opt_tx39xx.h" 42 #include "opt_kgdb.h" 43 44 #define __INTR_PRIVATE 45 46 #include <sys/param.h> 47 #include <sys/systm.h> 48 #include <sys/reboot.h> 49 #include <sys/device.h> 50 #include <sys/bus.h> 51 #include <sys/cpu.h> 52 53 #include <uvm/uvm_extern.h> 54 55 #include <machine/sysconf.h> 56 #include <machine/bootinfo.h> 57 #include <machine/bus_space_hpcmips.h> 58 #include <machine/platid.h> 59 #include <machine/platid_mask.h> 60 61 #include <dev/hpc/hpckbdvar.h> 62 63 #include <hpcmips/vr/vr.h> 64 #include <hpcmips/vr/vr_asm.h> 65 #include <hpcmips/vr/vrcpudef.h> 66 #include <hpcmips/vr/vripreg.h> 67 #include <hpcmips/vr/rtcreg.h> 68 69 #include <mips/cache.h> 70 71 #include "vrip_common.h" 72 #if NVRIP_COMMON > 0 73 #include <hpcmips/vr/vripvar.h> 74 #endif 75 76 #include "vrbcu.h" 77 #if NVRBCU > 0 78 #include <hpcmips/vr/bcuvar.h> 79 #endif 80 81 #include "vrdsu.h" 82 #if NVRDSU > 0 83 #include <hpcmips/vr/vrdsuvar.h> 84 #endif 85 86 #include "com.h" 87 #include "com_vrip.h" 88 #include "com_hpcio.h" 89 #if NCOM > 0 90 #include <sys/termios.h> 91 #include <sys/ttydefaults.h> 92 #include <dev/ic/comreg.h> 93 #include <dev/ic/comvar.h> 94 #if NCOM_VRIP > 0 95 #include <hpcmips/vr/siureg.h> 96 #include <hpcmips/vr/com_vripvar.h> 97 #endif 98 #if NCOM_HPCIO > 0 99 #include <hpcmips/dev/com_hpciovar.h> 100 #endif 101 #ifndef CONSPEED 102 #define CONSPEED TTYDEF_SPEED 103 #endif 104 #endif 105 106 #include "hpcfb.h" 107 #include "vrkiu.h" 108 #if (NVRKIU > 0) || (NHPCFB > 0) 109 #include <dev/wscons/wsdisplayvar.h> 110 #include <dev/rasops/rasops.h> 111 #endif 112 113 #if NHPCFB > 0 114 #include <dev/hpc/hpcfbvar.h> 115 #endif 116 117 #if NVRKIU > 0 118 #include <arch/hpcmips/vr/vrkiureg.h> 119 #include <arch/hpcmips/vr/vrkiuvar.h> 120 #endif 121 122 #ifdef DEBUG 123 #define STATIC 124 #else 125 #define STATIC static 126 #endif 127 128 /* 129 * This is a mask of bits to clear in the SR when we go to a 130 * given interrupt priority level. 131 */ 132 const struct ipl_sr_map __ipl_sr_map_vr = { 133 .sr_bits = { 134 [IPL_NONE] = 0, 135 [IPL_SOFTCLOCK] = MIPS_SOFT_INT_MASK_0, 136 [IPL_SOFTNET] = MIPS_SOFT_INT_MASK, 137 [IPL_VM] = MIPS_SOFT_INT_MASK 138 | MIPS_INT_MASK_0, 139 [IPL_SCHED] = MIPS_SOFT_INT_MASK 140 | MIPS_INT_MASK_0 141 | MIPS_INT_MASK_1, 142 [IPL_DDB] = MIPS_INT_MASK, 143 [IPL_VM] = MIPS_INT_MASK, 144 }, 145 }; 146 147 #if defined(VR41XX) && defined(TX39XX) 148 #define VR_INTR vr_intr 149 #else 150 #define VR_INTR cpu_intr /* locore_mips3 directly call this */ 151 #endif 152 153 void vr_init(void); 154 void VR_INTR(int, vaddr_t, uint32_t); 155 extern void vr_idle(void); 156 STATIC void vr_cons_init(void); 157 STATIC void vr_fb_init(void **); 158 STATIC void vr_mem_init(paddr_t); 159 STATIC void vr_find_dram(paddr_t, paddr_t); 160 STATIC void vr_reboot(int, char *); 161 162 /* 163 * CPU interrupt dispatch table (HwInt[0:3]) 164 */ 165 STATIC int vr_null_handler(void *, uint32_t, uint32_t); 166 STATIC int (*vr_intr_handler[4])(void *, uint32_t, uint32_t) = 167 { 168 vr_null_handler, 169 vr_null_handler, 170 vr_null_handler, 171 vr_null_handler 172 }; 173 STATIC void *vr_intr_arg[4]; 174 175 #if NCOM > 0 176 /* 177 * machine dependent serial console info 178 */ 179 static struct vr_com_platdep { 180 platid_mask_t *platidmask; 181 int (*attach)(bus_space_tag_t, int, int, int, tcflag_t, int); 182 int addr; 183 int freq; 184 } platdep_com_table[] = { 185 #if NCOM_HPCIO > 0 186 { 187 &platid_mask_MACH_NEC_MCR_SIGMARION2, 188 com_hpcio_cndb_attach, /* attach proc */ 189 0x0b600000, /* base address */ 190 COM_FREQ, /* frequency */ 191 }, 192 #endif 193 #if NCOM_VRIP > 0 194 #ifdef VR4102 195 { 196 &platid_mask_CPU_MIPS_VR_4102, 197 com_vrip_cndb_attach, /* attach proc */ 198 VR4102_SIU_ADDR, /* base address */ 199 VRCOM_FREQ, /* frequency */ 200 }, 201 #endif /* VR4102 */ 202 #ifdef VR4111 203 { 204 &platid_mask_CPU_MIPS_VR_4111, 205 com_vrip_cndb_attach, /* attach proc */ 206 VR4102_SIU_ADDR, /* base address */ 207 VRCOM_FREQ, /* frequency */ 208 }, 209 #endif /* VR4111 */ 210 #ifdef VR4121 211 { 212 &platid_mask_CPU_MIPS_VR_4121, 213 com_vrip_cndb_attach, /* attach proc */ 214 VR4102_SIU_ADDR, /* base address */ 215 VRCOM_FREQ, /* frequency */ 216 }, 217 #endif /* VR4121 */ 218 #ifdef VR4122 219 { 220 &platid_mask_CPU_MIPS_VR_4122, 221 com_vrip_cndb_attach, /* attach proc */ 222 VR4122_SIU_ADDR, /* base address */ 223 VRCOM_FREQ, /* frequency */ 224 }, 225 #endif /* VR4122 */ 226 #ifdef VR4131 227 { 228 &platid_mask_CPU_MIPS_VR_4122, 229 com_vrip_cndb_attach, /* attach proc */ 230 VR4122_SIU_ADDR, /* base address */ 231 VRCOM_FREQ, /* frequency */ 232 }, 233 #endif /* VR4131 */ 234 #ifdef SINGLE_VRIP_BASE 235 { 236 &platid_wild, 237 com_vrip_cndb_attach, /* attach proc */ 238 VRIP_SIU_ADDR, /* base address */ 239 VRCOM_FREQ, /* frequency */ 240 }, 241 #endif /* SINGLE_VRIP_BASE */ 242 #else /* NCOM_VRIP > 0 */ 243 /* dummy */ 244 { 245 &platid_wild, 246 NULL, /* attach proc */ 247 0, /* base address */ 248 0, /* frequency */ 249 }, 250 #endif /* NCOM_VRIP > 0 */ 251 }; 252 #endif /* NCOM > 0 */ 253 254 #if NVRKIU > 0 255 /* 256 * machine dependent keyboard info 257 */ 258 static struct vr_kiu_platdep { 259 platid_mask_t *platidmask; 260 int addr; 261 } platdep_kiu_table[] = { 262 #ifdef VR4102 263 { 264 &platid_mask_CPU_MIPS_VR_4102, 265 VR4102_KIU_ADDR, /* base address */ 266 }, 267 #endif /* VR4102 */ 268 #ifdef VR4111 269 { 270 &platid_mask_CPU_MIPS_VR_4111, 271 VR4102_KIU_ADDR, /* base address */ 272 }, 273 #endif /* VR4111 */ 274 #ifdef VR4121 275 { 276 &platid_mask_CPU_MIPS_VR_4121, 277 VR4102_KIU_ADDR, /* base address */ 278 }, 279 #endif /* VR4121 */ 280 { 281 &platid_wild, 282 #ifdef SINGLE_VRIP_BASE 283 VRIP_KIU_ADDR, /* base address */ 284 #else 285 VRIP_NO_ADDR, /* base address */ 286 #endif /* SINGLE_VRIP_BASE */ 287 }, 288 }; 289 #endif /* NVRKIU > 0 */ 290 291 void 292 vr_init(void) 293 { 294 /* 295 * Platform Specific Function Hooks 296 */ 297 platform.cpu_idle = vr_idle; 298 platform.cpu_intr = VR_INTR; 299 platform.cons_init = vr_cons_init; 300 platform.fb_init = vr_fb_init; 301 platform.mem_init = vr_mem_init; 302 platform.reboot = vr_reboot; 303 304 #if NVRBCU > 0 305 sprintf(hpcmips_cpuname, "NEC %s rev%d.%d %d.%03dMHz", 306 vrbcu_vrip_getcpuname(), 307 vrbcu_vrip_getcpumajor(), 308 vrbcu_vrip_getcpuminor(), 309 vrbcu_vrip_getcpuclock() / 1000000, 310 (vrbcu_vrip_getcpuclock() % 1000000) / 1000); 311 #else 312 sprintf(hpcmips_cpuname, "NEC VR41xx"); 313 #endif 314 } 315 316 void 317 vr_mem_init(paddr_t kernend) 318 { 319 320 mem_clusters[0].start = 0; 321 mem_clusters[0].size = kernend; 322 mem_cluster_cnt = 1; 323 324 vr_find_dram(kernend, 0x02000000); 325 vr_find_dram(0x02000000, 0x04000000); 326 vr_find_dram(0x04000000, 0x06000000); 327 vr_find_dram(0x06000000, 0x08000000); 328 } 329 330 void 331 vr_find_dram(paddr_t addr, paddr_t end) 332 { 333 int n; 334 char *page; 335 #ifdef NARLY_MEMORY_PROBE 336 int x, i; 337 #endif 338 339 #ifdef VR_FIND_DRAMLIM 340 if (VR_FIND_DRAMLIM < end) 341 end = VR_FIND_DRAMLIM; 342 #endif /* VR_FIND_DRAMLIM */ 343 n = mem_cluster_cnt; 344 for (; addr < end; addr += PAGE_SIZE) { 345 346 page = (char *)MIPS_PHYS_TO_KSEG1(addr); 347 /* 348 XXX see port-hpcmips/42934 349 if (badaddr(page, 4)) 350 goto bad; 351 */ 352 353 /* stop memory probing at first memory image */ 354 if (memcmp(page, (void *)MIPS_PHYS_TO_KSEG0(0), 128) == 0) 355 return; 356 357 *(volatile int *)(page+0) = 0xa5a5a5a5; 358 *(volatile int *)(page+4) = 0x5a5a5a5a; 359 wbflush(); 360 if (*(volatile int *)(page+0) != 0xa5a5a5a5) 361 goto bad; 362 363 *(volatile int *)(page+0) = 0x5a5a5a5a; 364 *(volatile int *)(page+4) = 0xa5a5a5a5; 365 wbflush(); 366 if (*(volatile int *)(page+0) != 0x5a5a5a5a) 367 goto bad; 368 369 #ifdef NARLY_MEMORY_PROBE 370 x = random(); 371 for (i = 0; i < PAGE_SIZE; i += 4) 372 *(volatile int *)(page+i) = (x ^ i); 373 wbflush(); 374 for (i = 0; i < PAGE_SIZE; i += 4) 375 if (*(volatile int *)(page+i) != (x ^ i)) 376 goto bad; 377 378 x = random(); 379 for (i = 0; i < PAGE_SIZE; i += 4) 380 *(volatile int *)(page+i) = (x ^ i); 381 wbflush(); 382 for (i = 0; i < PAGE_SIZE; i += 4) 383 if (*(volatile int *)(page+i) != (x ^ i)) 384 goto bad; 385 #endif /* NARLY_MEMORY_PROBE */ 386 387 if (!mem_clusters[n].size) 388 mem_clusters[n].start = addr; 389 mem_clusters[n].size += PAGE_SIZE; 390 continue; 391 392 bad: 393 if (mem_clusters[n].size) 394 ++n; 395 continue; 396 } 397 if (mem_clusters[n].size) 398 ++n; 399 mem_cluster_cnt = n; 400 } 401 402 void 403 vr_fb_init(void **kernend) 404 { 405 /* Nothing to do */ 406 } 407 408 void 409 vr_cons_init(void) 410 { 411 #if NCOM > 0 || NHPCFB > 0 || NVRKIU > 0 412 bus_space_tag_t iot = hpcmips_system_bus_space(); 413 #endif 414 #if NCOM > 0 415 static struct vr_com_platdep *com_info; 416 #endif 417 #if NVRKIU > 0 418 static struct vr_kiu_platdep *kiu_info; 419 #endif 420 421 #if NCOM > 0 422 com_info = platid_search(&platid, platdep_com_table, 423 sizeof(platdep_com_table)/sizeof(*platdep_com_table), 424 sizeof(*platdep_com_table)); 425 #ifdef KGDB 426 if (com_info->attach != NULL) { 427 /* if KGDB is defined, always use the serial port for KGDB */ 428 if ((*com_info->attach)(iot, com_info->addr, 9600, 429 com_info->freq, 430 (TTYDEF_CFLAG & ~(CSIZE | PARENB)) | CS8, 1)) { 431 printf("%s(%d): can't init kgdb's serial port", 432 __FILE__, __LINE__); 433 } 434 } 435 #else /* KGDB */ 436 if (com_info->attach != NULL && (bootinfo->bi_cnuse&BI_CNUSE_SERIAL)) { 437 /* Serial console */ 438 if ((*com_info->attach)(iot, com_info->addr, CONSPEED, 439 com_info->freq, 440 (TTYDEF_CFLAG & ~(CSIZE | PARENB)) | CS8, 0)) { 441 printf("%s(%d): can't init serial console", 442 __FILE__, __LINE__); 443 } else { 444 return; 445 } 446 } 447 #endif /* KGDB */ 448 #endif /* NCOM > 0 */ 449 450 #if NHPCFB > 0 451 if (hpcfb_cnattach(NULL)) { 452 printf("%s(%d): can't init fb console", __FILE__, __LINE__); 453 } else { 454 goto find_keyboard; 455 } 456 find_keyboard: 457 #endif /* NHPCFB > 0 */ 458 459 #if NVRKIU > 0 460 kiu_info = platid_search(&platid, platdep_kiu_table, 461 sizeof(platdep_kiu_table)/sizeof(*platdep_kiu_table), 462 sizeof(*platdep_kiu_table)); 463 if (kiu_info->addr != VRIP_NO_ADDR) { 464 if (vrkiu_cnattach(iot, kiu_info->addr)) { 465 printf("%s(%d): can't init vrkiu as console", 466 __FILE__, __LINE__); 467 } else { 468 return; 469 } 470 } 471 #endif /* NVRKIU > 0 */ 472 } 473 474 extern char vr_hibernate[]; 475 extern char evr_hibernate[]; 476 477 void 478 vr_reboot(int howto, char *bootstr) 479 { 480 /* 481 * power down 482 */ 483 if ((howto & RB_POWERDOWN) == RB_POWERDOWN) { 484 printf("fake powerdown\n"); 485 /* 486 * copy vr_hibernate() to top of physical memory. 487 */ 488 memcpy((void *)MIPS_KSEG0_START, vr_hibernate, 489 evr_hibernate - (char *)vr_hibernate); 490 /* sync I&D cache */ 491 mips_dcache_wbinv_all(); 492 mips_icache_sync_all(); 493 /* 494 * call vr_hibernate() at MIPS_KSEG0_START. 495 */ 496 ((void (*)(void *,int))MIPS_KSEG0_START)( 497 (void *)MIPS_KSEG0_START, ptoa(physmem)); 498 /* not reach */ 499 vr_reboot(howto&~RB_HALT, bootstr); 500 } 501 /* 502 * halt 503 */ 504 if (howto & RB_HALT) { 505 #if NVRIP_COMMON > 0 506 _spllower(~MIPS_INT_MASK_0); 507 vrip_intr_suspend(); 508 #else 509 splhigh(); 510 #endif 511 __asm(".set noreorder"); 512 __asm(".word " ___STRING(VR_OPCODE_SUSPEND)); 513 __asm("nop"); 514 __asm("nop"); 515 __asm("nop"); 516 __asm("nop"); 517 __asm("nop"); 518 __asm(".set reorder"); 519 #if NVRIP_COMMON > 0 520 vrip_intr_resume(); 521 #endif 522 } 523 /* 524 * reset 525 */ 526 #if NVRDSU 527 vrdsu_reset(); 528 #else 529 printf("%s(%d): There is no DSU.", __FILE__, __LINE__); 530 #endif 531 } 532 533 /* 534 * Handle interrupts. 535 */ 536 void 537 VR_INTR(int ppl, vaddr_t pc, uint32_t status) 538 { 539 uint32_t ipending; 540 int ipl; 541 542 while (ppl < (ipl = splintr(&ipending))) { 543 /* Deal with unneded compare interrupts occasionally so that 544 * we can keep spllowersoftclock. */ 545 if (ipending & MIPS_INT_MASK_5) { 546 mips3_cp0_compare_write(0); 547 } 548 549 if (ipending & MIPS_INT_MASK_1) { 550 (*vr_intr_handler[1])(vr_intr_arg[1], pc, ipending); 551 } 552 553 if (ipending & MIPS_INT_MASK_0) { 554 (*vr_intr_handler[0])(vr_intr_arg[0], pc, status); 555 } 556 } 557 } 558 559 void * 560 vr_intr_establish(int line, int (*ih_fun)(void *, uint32_t, uint32_t), 561 void *ih_arg) 562 { 563 564 KDASSERT(vr_intr_handler[line] == vr_null_handler); 565 566 vr_intr_handler[line] = ih_fun; 567 vr_intr_arg[line] = ih_arg; 568 569 return ((void *)line); 570 } 571 572 void 573 vr_intr_disestablish(void *ih) 574 { 575 int line = (int)ih; 576 577 vr_intr_handler[line] = vr_null_handler; 578 vr_intr_arg[line] = NULL; 579 } 580 581 int 582 vr_null_handler(void *arg, uint32_t pc, uint32_t status) 583 { 584 585 printf("vr_null_handler\n"); 586 587 return (0); 588 } 589 590 /* 591 int x4181 = VR4181; 592 int x4101 = VR4101; 593 int x4102 = VR4102; 594 int x4111 = VR4111; 595 int x4121 = VR4121; 596 int x4122 = VR4122; 597 int xo4181 = ONLY_VR4181; 598 int xo4101 = ONLY_VR4101; 599 int xo4102 = ONLY_VR4102; 600 int xo4111_4121 = ONLY_VR4111_4121; 601 int g4101=VRGROUP_4101; 602 int g4102=VRGROUP_4102; 603 int g4181=VRGROUP_4181; 604 int g4102_4121=VRGROUP_4102_4121; 605 int g4111_4121=VRGROUP_4111_4121; 606 int g4102_4122=VRGROUP_4102_4122; 607 int g4111_4122=VRGROUP_4111_4122; 608 int single_vrip_base=SINGLE_VRIP_BASE; 609 int vrip_base_addr=VRIP_BASE_ADDR; 610 */ 611
Indexes created Tue Sep 30 20:09:53 GMT 2025