machdep.c revision 1.20
1 /* $NetBSD: machdep.c,v 1.20 2007/10/17 19:54:17 garbled Exp $ */ 2 3 /* 4 * Copyright (C) 1995, 1996 Wolfgang Solfrank. 5 * Copyright (C) 1995, 1996 TooLs GmbH. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by TooLs GmbH. 19 * 4. The name of TooLs GmbH may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 27 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 28 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 29 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 30 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 31 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/cdefs.h> 35 __KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.20 2007/10/17 19:54:17 garbled Exp $"); 36 37 #include "opt_marvell.h" 38 #include "opt_ev64260.h" 39 #include "opt_compat_netbsd.h" 40 #include "opt_ddb.h" 41 #include "opt_inet.h" 42 #include "opt_ccitt.h" 43 #include "opt_iso.h" 44 #include "opt_ns.h" 45 #include "opt_ipkdb.h" 46 47 #include <sys/param.h> 48 #include <sys/conf.h> 49 #include <sys/device.h> 50 #include <sys/kernel.h> 51 #include <sys/malloc.h> 52 #include <sys/mount.h> 53 #include <sys/msgbuf.h> 54 #include <sys/proc.h> 55 #include <sys/reboot.h> 56 #include <sys/extent.h> 57 #include <sys/syslog.h> 58 #include <sys/systm.h> 59 #include <sys/termios.h> 60 #include <sys/ksyms.h> 61 62 #include <uvm/uvm.h> 63 #include <uvm/uvm_extern.h> 64 65 #include <net/netisr.h> 66 67 #include <machine/bus.h> 68 #include <machine/db_machdep.h> 69 #include <machine/intr.h> 70 #include <machine/pmap.h> 71 #include <machine/powerpc.h> 72 #include <machine/trap.h> 73 74 #include <powerpc/oea/bat.h> 75 #include <powerpc/marvell/watchdog.h> 76 77 #include <ddb/db_extern.h> 78 79 #include <dev/cons.h> 80 81 #include "vga.h" 82 #if (NVGA > 0) 83 #include <dev/ic/mc6845reg.h> 84 #include <dev/ic/pcdisplayvar.h> 85 #include <dev/ic/vgareg.h> 86 #include <dev/ic/vgavar.h> 87 #endif 88 89 #include "isa.h" 90 #if (NISA > 0) 91 void isa_intr_init(void); 92 #endif 93 94 #include "com.h" 95 #if (NCOM > 0) 96 #include <dev/ic/comreg.h> 97 #include <dev/ic/comvar.h> 98 #endif 99 100 #include <dev/marvell/gtreg.h> 101 #include <dev/marvell/gtvar.h> 102 #include <dev/marvell/gtethreg.h> 103 104 #include "gtmpsc.h" 105 #if (NGTMPSC > 0) 106 #include <dev/marvell/gtsdmareg.h> 107 #include <dev/marvell/gtmpscreg.h> 108 #include <dev/marvell/gtmpscvar.h> 109 #endif 110 111 #include "ksyms.h" 112 113 /* 114 * Global variables used here and there 115 */ 116 extern struct user *proc0paddr; 117 118 #define PMONMEMREGIONS 32 119 struct mem_region physmemr[PMONMEMREGIONS], availmemr[PMONMEMREGIONS]; 120 121 char *bootpath; 122 123 void initppc(u_int, u_int, u_int, void *); /* Called from locore */ 124 void strayintr(int); 125 int lcsplx(int); 126 void gt_bus_space_init(void); 127 void gt_find_memory(bus_space_tag_t, bus_space_handle_t, paddr_t); 128 void gt_halt(bus_space_tag_t, bus_space_handle_t); 129 void return_to_dink(int); 130 131 void kcomcnputs(dev_t, const char *); 132 133 struct powerpc_bus_space gt_pci0_mem_bs_tag = { 134 _BUS_SPACE_LITTLE_ENDIAN|_BUS_SPACE_MEM_TYPE, 135 0x00000000, 0x00000000, 0x00000000, 136 }; 137 struct powerpc_bus_space gt_pci0_io_bs_tag = { 138 _BUS_SPACE_LITTLE_ENDIAN|_BUS_SPACE_IO_TYPE, 139 0x00000000, 0x00000000, 0x00000000, 140 }; 141 struct powerpc_bus_space gt_pci1_mem_bs_tag = { 142 _BUS_SPACE_LITTLE_ENDIAN|_BUS_SPACE_MEM_TYPE, 143 0x00000000, 0x00000000, 0x00000000, 144 }; 145 struct powerpc_bus_space gt_pci1_io_bs_tag = { 146 _BUS_SPACE_LITTLE_ENDIAN|_BUS_SPACE_IO_TYPE, 147 0x00000000, 0x00000000, 0x00000000, 148 }; 149 struct powerpc_bus_space gt_obio0_bs_tag = { 150 _BUS_SPACE_BIG_ENDIAN|_BUS_SPACE_MEM_TYPE|OBIO0_STRIDE, 151 0x00000000, 0x00000000, 0x00000000, 152 }; 153 struct powerpc_bus_space gt_obio1_bs_tag = { 154 _BUS_SPACE_BIG_ENDIAN|_BUS_SPACE_MEM_TYPE|OBIO1_STRIDE, 155 0x00000000, 0x00000000, 0x00000000, 156 }; 157 struct powerpc_bus_space gt_obio2_bs_tag = { 158 _BUS_SPACE_BIG_ENDIAN|_BUS_SPACE_MEM_TYPE|OBIO2_STRIDE, 159 0x00000000, 0x00000000, 0x00000000, 160 }; 161 struct powerpc_bus_space gt_obio3_bs_tag = { 162 _BUS_SPACE_BIG_ENDIAN|_BUS_SPACE_MEM_TYPE|OBIO3_STRIDE, 163 0x00000000, 0x00000000, 0x00000000, 164 }; 165 struct powerpc_bus_space gt_bootcs_bs_tag = { 166 _BUS_SPACE_BIG_ENDIAN|_BUS_SPACE_MEM_TYPE, 167 0x00000000, 0x00000000, 0x00000000, 168 }; 169 struct powerpc_bus_space gt_mem_bs_tag = { 170 _BUS_SPACE_LITTLE_ENDIAN|_BUS_SPACE_MEM_TYPE, 171 GT_BASE, 0x00000000, 0x00010000, 172 }; 173 174 bus_space_handle_t gt_memh; 175 176 struct powerpc_bus_space *obio_bs_tags[5] = { 177 >_obio0_bs_tag, >_obio1_bs_tag, >_obio2_bs_tag, 178 >_obio3_bs_tag, >_bootcs_bs_tag 179 }; 180 181 static char ex_storage[10][EXTENT_FIXED_STORAGE_SIZE(8)] 182 __attribute__((aligned(8))); 183 184 const struct gt_decode_info { 185 bus_addr_t low_decode; 186 bus_addr_t high_decode; 187 } decode_regs[] = { 188 { GT_SCS0_Low_Decode, GT_SCS0_High_Decode }, 189 { GT_SCS1_Low_Decode, GT_SCS1_High_Decode }, 190 { GT_SCS2_Low_Decode, GT_SCS2_High_Decode }, 191 { GT_SCS3_Low_Decode, GT_SCS3_High_Decode }, 192 { GT_CS0_Low_Decode, GT_CS0_High_Decode }, 193 { GT_CS1_Low_Decode, GT_CS1_High_Decode }, 194 { GT_CS2_Low_Decode, GT_CS2_High_Decode }, 195 { GT_CS3_Low_Decode, GT_CS3_High_Decode }, 196 { GT_BootCS_Low_Decode, GT_BootCS_High_Decode }, 197 }; 198 199 void 200 initppc(startkernel, endkernel, args, btinfo) 201 u_int startkernel, endkernel, args; 202 void *btinfo; 203 { 204 oea_batinit(0xf0000000, BAT_BL_256M); 205 oea_init((void (*)(void))ext_intr); 206 207 DELAY(100000); 208 209 gt_bus_space_init(); 210 gt_find_memory(>_mem_bs_tag, gt_memh, roundup(endkernel, PAGE_SIZE)); 211 gt_halt(>_mem_bs_tag, gt_memh); 212 213 /* 214 * Now that we known how much memory, reinit the bats. 215 */ 216 oea_batinit(0xf0000000, BAT_BL_256M); 217 218 consinit(); 219 220 #if (NISA > 0) 221 isa_intr_init(); 222 #endif 223 224 /* 225 * Set the page size. 226 */ 227 uvm_setpagesize(); 228 229 /* 230 * Initialize pmap module. 231 */ 232 pmap_bootstrap(startkernel, endkernel); 233 234 #if NKSYMS || defined(DDB) || defined(LKM) 235 { 236 extern void *startsym, *endsym; 237 ksyms_init((int)((u_int)endsym - (u_int)startsym), 238 startsym, endsym); 239 } 240 #endif 241 #ifdef IPKDB 242 /* 243 * Now trap to IPKDB 244 */ 245 ipkdb_init(); 246 if (boothowto & RB_KDB) 247 ipkdb_connect(0); 248 #endif 249 } 250 251 void 252 mem_regions(struct mem_region **mem, struct mem_region **avail) 253 { 254 *mem = physmemr; 255 *avail = availmemr; 256 } 257 258 static inline void 259 gt_record_memory(int j, paddr_t start, paddr_t end, paddr_t endkernel) 260 { 261 physmemr[j].start = start; 262 physmemr[j].size = end - start; 263 if (start < endkernel) 264 start = endkernel; 265 availmemr[j].start = start; 266 availmemr[j].size = end - start; 267 } 268 269 void 270 gt_find_memory(bus_space_tag_t memt, bus_space_handle_t memh, 271 paddr_t endkernel) 272 { 273 paddr_t start = ~0, end = 0; 274 int i, j = 0, first = 1; 275 276 /* 277 * Round kernel end to a page boundary. 278 */ 279 for (i = 0; i < 4; i++) { 280 paddr_t nstart, nend; 281 nstart = GT_LowAddr_GET(bus_space_read_4(>_mem_bs_tag, 282 gt_memh, decode_regs[i].low_decode)); 283 nend = GT_HighAddr_GET(bus_space_read_4(>_mem_bs_tag, 284 gt_memh, decode_regs[i].high_decode)) + 1; 285 if (nstart >= nend) 286 continue; 287 if (first) { 288 /* 289 * First entry? Just remember it. 290 */ 291 start = nstart; 292 end = nend; 293 first = 0; 294 } else if (nstart == end) { 295 /* 296 * Contiguous? Just update the end. 297 */ 298 end = nend; 299 } else { 300 /* 301 * Disjoint? record it. 302 */ 303 gt_record_memory(j, start, end, endkernel); 304 start = nstart; 305 end = nend; 306 j++; 307 } 308 } 309 gt_record_memory(j, start, end, endkernel); 310 } 311 312 /* 313 * Machine dependent startup code. 314 */ 315 void 316 cpu_startup(void) 317 { 318 register_t msr; 319 320 oea_startup(NULL); 321 322 /* 323 * Now that we have VM, malloc()s are OK in bus_space. 324 */ 325 bus_space_mallocok(); 326 327 /* 328 * Now allow hardware interrupts. 329 */ 330 splhigh(); 331 __asm volatile ("mfmsr %0; ori %0,%0,%1; mtmsr %0" 332 : "=r"(msr) 333 : "K"(PSL_EE)); 334 } 335 336 /* 337 * consinit 338 * Initialize system console. 339 */ 340 void 341 consinit(void) 342 { 343 #ifdef MPSC_CONSOLE 344 /* PMON using MPSC0 @ 9600 */ 345 gtmpsccnattach(>_mem_bs_tag, gt_memh, MPSC_CONSOLE, 9600, 346 (TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8); 347 #else 348 /* PPCBOOT using COM1 @ 57600 */ 349 comcnattach(>_obio2_bs_tag, 0, 57600, 350 COM_FREQ*2, COM_TYPE_NORMAL, 351 (TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8); 352 #endif 353 } 354 355 /* 356 * Stray interrupts. 357 */ 358 void 359 strayintr(int irq) 360 { 361 log(LOG_ERR, "stray interrupt %d\n", irq); 362 } 363 364 /* 365 * Halt or reboot the machine after syncing/dumping according to howto. 366 */ 367 void 368 cpu_reboot(int howto, char *what) 369 { 370 static int syncing; 371 static char str[256]; 372 char *ap = str, *ap1 = ap; 373 374 boothowto = howto; 375 if (!cold && !(howto & RB_NOSYNC) && !syncing) { 376 syncing = 1; 377 vfs_shutdown(); /* sync */ 378 resettodr(); /* set wall clock */ 379 } 380 splhigh(); 381 if (howto & RB_HALT) { 382 doshutdownhooks(); 383 printf("halted\n\n"); 384 cnhalt(); 385 while(1); 386 } 387 if (!cold && (howto & RB_DUMP)) 388 oea_dumpsys(); 389 doshutdownhooks(); 390 printf("rebooting\n\n"); 391 if (what && *what) { 392 if (strlen(what) > sizeof str - 5) 393 printf("boot string too large, ignored\n"); 394 else { 395 strcpy(str, what); 396 ap1 = ap = str + strlen(str); 397 *ap++ = ' '; 398 } 399 } 400 *ap++ = '-'; 401 if (howto & RB_SINGLE) 402 *ap++ = 's'; 403 if (howto & RB_KDB) 404 *ap++ = 'd'; 405 *ap++ = 0; 406 if (ap[-2] == '-') 407 *ap1 = 0; 408 #if 0 409 { 410 void mvpppc_reboot(void); 411 mvpppc_reboot(); 412 } 413 #endif 414 gt_watchdog_reset(); 415 /* NOTREACHED */ 416 while (1); 417 } 418 419 int 420 lcsplx(int ipl) 421 { 422 return spllower(ipl); 423 } 424 425 void 426 gt_halt(bus_space_tag_t memt, bus_space_handle_t memh) 427 { 428 int i; 429 u_int32_t data; 430 431 /* 432 * Shut down the MPSC ports 433 */ 434 for (i = 0; i < 2; i++) { 435 bus_space_write_4(memt, memh, 436 SDMA_U_SDCM(i), SDMA_SDCM_AR|SDMA_SDCM_AT); 437 for (;;) { 438 data = bus_space_read_4(memt, memh, 439 SDMA_U_SDCM(i)); 440 if (((SDMA_SDCM_AR|SDMA_SDCM_AT) & data) == 0) 441 break; 442 } 443 } 444 445 /* 446 * Shut down the Ethernets 447 */ 448 for (i = 0; i < 3; i++) { 449 bus_space_write_4(memt, memh, 450 ETH_ESDCMR(2), ETH_ESDCMR_AR|ETH_ESDCMR_AT); 451 for (;;) { 452 data = bus_space_read_4(memt, memh, 453 ETH_ESDCMR(i)); 454 if (((ETH_ESDCMR_AR|ETH_ESDCMR_AT) & data) == 0) 455 break; 456 } 457 data = bus_space_read_4(memt, memh, ETH_EPCR(i)); 458 data &= ~ETH_EPCR_EN; 459 bus_space_write_4(memt, memh, ETH_EPCR(i), data); 460 } 461 } 462 463 int 464 gtget_macaddr(struct gt_softc *gt, int macno, char *enaddr) 465 { 466 enaddr[0] = 0x02; 467 enaddr[1] = 0x00; 468 enaddr[2] = 0x04; 469 enaddr[3] = 0x00; 470 enaddr[4] = 0x00; 471 enaddr[5] = 0x04 + macno; 472 473 return 0; 474 } 475 476 void 477 gt_bus_space_init(void) 478 { 479 bus_space_tag_t gt_memt = >_mem_bs_tag; 480 const struct gt_decode_info *di; 481 uint32_t datal, datah; 482 int error; 483 int bs = 0; 484 int j; 485 486 error = bus_space_init(>_mem_bs_tag, "gtmem", 487 ex_storage[bs], sizeof(ex_storage[bs])); 488 489 error = bus_space_map(gt_memt, 0, 0x10000, 0, >_memh); 490 491 for (j = 0, di = &decode_regs[4]; j < 5; j++, di++) { 492 struct powerpc_bus_space *memt = obio_bs_tags[j]; 493 datal = bus_space_read_4(gt_memt, gt_memh, di->low_decode); 494 datah = bus_space_read_4(gt_memt, gt_memh, di->high_decode); 495 496 if (GT_LowAddr_GET(datal) >= GT_HighAddr_GET(datal)) { 497 obio_bs_tags[j] = NULL; 498 continue; 499 } 500 memt->pbs_offset = GT_LowAddr_GET(datal); 501 memt->pbs_limit = GT_HighAddr_GET(datah) + 1 - 502 memt->pbs_offset; 503 504 error = bus_space_init(memt, "obio2", 505 ex_storage[bs], sizeof(ex_storage[bs])); 506 bs++; 507 } 508 509 datal = bus_space_read_4(gt_memt, gt_memh, GT_PCI0_Mem0_Low_Decode); 510 datah = bus_space_read_4(gt_memt, gt_memh, GT_PCI0_Mem0_High_Decode); 511 #if defined(GT_PCI0_MEMBASE) 512 datal &= ~0xfff; 513 datal |= (GT_PCI0_MEMBASE >> 20); 514 bus_space_write_4(gt_memt, gt_memh, GT_PCI0_Mem0_Low_Decode, datal); 515 #endif 516 #if defined(GT_PCI0_MEMSIZE) 517 datah &= ~0xfff; 518 datah |= (GT_PCI0_MEMSIZE + GT_LowAddr_GET(datal) - 1) >> 20; 519 bus_space_write_4(gt_memt, gt_memh, GT_PCI0_Mem0_High_Decode, datal); 520 #endif 521 gt_pci0_mem_bs_tag.pbs_base = GT_LowAddr_GET(datal); 522 gt_pci0_mem_bs_tag.pbs_limit = GT_HighAddr_GET(datah) + 1; 523 524 error = bus_space_init(>_pci0_mem_bs_tag, "pci0-mem", 525 ex_storage[bs], sizeof(ex_storage[bs])); 526 bs++; 527 528 /* 529 * Make sure PCI0 Memory is BAT mapped. 530 */ 531 if (GT_LowAddr_GET(datal) < GT_HighAddr_GET(datal)) 532 oea_iobat_add(gt_pci0_mem_bs_tag.pbs_base & SEGMENT_MASK, BAT_BL_256M); 533 534 /* 535 * Make sure that I/O space start at 0. 536 */ 537 bus_space_write_4(gt_memt, gt_memh, GT_PCI1_IO_Remap, 0); 538 539 datal = bus_space_read_4(gt_memt, gt_memh, GT_PCI0_IO_Low_Decode); 540 datah = bus_space_read_4(gt_memt, gt_memh, GT_PCI0_IO_High_Decode); 541 #if defined(GT_PCI0_IOBASE) 542 datal &= ~0xfff; 543 datal |= (GT_PCI0_IOBASE >> 20); 544 bus_space_write_4(gt_memt, gt_memh, GT_PCI0_IO_Low_Decode, datal); 545 #endif 546 #if defined(GT_PCI0_IOSIZE) 547 datah &= ~0xfff; 548 datah |= (GT_PCI0_IOSIZE + GT_LowAddr_GET(datal) - 1) >> 20; 549 bus_space_write_4(gt_memt, gt_memh, GT_PCI0_IO_High_Decode, datal); 550 #endif 551 gt_pci0_io_bs_tag.pbs_offset = GT_LowAddr_GET(datal); 552 gt_pci0_io_bs_tag.pbs_limit = GT_HighAddr_GET(datah) + 1 - 553 gt_pci0_io_bs_tag.pbs_offset; 554 555 error = bus_space_init(>_pci0_io_bs_tag, "pci0-ioport", 556 ex_storage[bs], sizeof(ex_storage[bs])); 557 bs++; 558 559 #if 0 560 error = extent_alloc_region(gt_pci0_io_bs_tag.pbs_extent, 561 0x10000, 0x7F0000, EX_NOWAIT); 562 if (error) 563 panic("gt_bus_space_init: can't block out reserved " 564 "I/O space 0x10000-0x7fffff: error=%d\n", error); 565 #endif 566 567 datal = bus_space_read_4(gt_memt, gt_memh, GT_PCI1_Mem0_Low_Decode); 568 datah = bus_space_read_4(gt_memt, gt_memh, GT_PCI1_Mem0_High_Decode); 569 #if defined(GT_PCI1_MEMBASE) 570 datal &= ~0xfff; 571 datal |= (GT_PCI1_MEMBASE >> 20); 572 bus_space_write_4(gt_memt, gt_memh, GT_PCI1_Mem0_Low_Decode, datal); 573 #endif 574 #if defined(GT_PCI1_MEMSIZE) 575 datah &= ~0xfff; 576 datah |= (GT_PCI1_MEMSIZE + GT_LowAddr_GET(datal) - 1) >> 20; 577 bus_space_write_4(gt_memt, gt_memh, GT_PCI1_Mem0_High_Decode, datal); 578 #endif 579 gt_pci1_mem_bs_tag.pbs_base = GT_LowAddr_GET(datal); 580 gt_pci1_mem_bs_tag.pbs_limit = GT_HighAddr_GET(datah) + 1; 581 582 error = bus_space_init(>_pci1_mem_bs_tag, "pci1-mem", 583 ex_storage[bs], sizeof(ex_storage[bs])); 584 bs++; 585 586 /* 587 * Make sure PCI1 Memory is BAT mapped. 588 */ 589 if (GT_LowAddr_GET(datal) < GT_HighAddr_GET(datal)) 590 oea_iobat_add(gt_pci1_mem_bs_tag.pbs_base & SEGMENT_MASK, BAT_BL_256M); 591 592 /* 593 * Make sure that I/O space start at 0. 594 */ 595 bus_space_write_4(gt_memt, gt_memh, GT_PCI1_IO_Remap, 0); 596 597 datal = bus_space_read_4(gt_memt, gt_memh, GT_PCI1_IO_Low_Decode); 598 datah = bus_space_read_4(gt_memt, gt_memh, GT_PCI1_IO_High_Decode); 599 #if defined(GT_PCI1_IOBASE) 600 datal &= ~0xfff; 601 datal |= (GT_PCI1_IOBASE >> 20); 602 bus_space_write_4(gt_memt, gt_memh, GT_PCI1_IO_Low_Decode, datal); 603 #endif 604 #if defined(GT_PCI1_IOSIZE) 605 datah &= ~0xfff; 606 datah |= (GT_PCI1_IOSIZE + GT_LowAddr_GET(datal) - 1) >> 20; 607 bus_space_write_4(gt_memt, gt_memh, GT_PCI1_IO_High_Decode, datal); 608 #endif 609 gt_pci1_io_bs_tag.pbs_offset = GT_LowAddr_GET(datal); 610 gt_pci1_io_bs_tag.pbs_limit = GT_HighAddr_GET(datah) + 1 - 611 gt_pci1_io_bs_tag.pbs_offset; 612 613 error = bus_space_init(>_pci1_io_bs_tag, "pci1-ioport", 614 ex_storage[bs], sizeof(ex_storage[bs])); 615 bs++; 616 617 #if 0 618 error = extent_alloc_region(gt_pci1_io_bs_tag.pbs_extent, 619 0x10000, 0x7F0000, EX_NOWAIT); 620 if (error) 621 panic("gt_bus_space_init: can't block out reserved " 622 "I/O space 0x10000-0x7fffff: error=%d\n", error); 623 #endif 624 } 625
Indexes created Wed Oct 22 13:09:56 GMT 2025