machdep.c revision 1.1.2.13
1 /* $NetBSD: machdep.c,v 1.1.2.13 2010/01/08 08:01:22 cliff Exp $ */ 2 3 /* 4 * Copyright 2001, 2002 Wasabi Systems, Inc. 5 * All rights reserved. 6 * 7 * Written by Jason R. Thorpe and Simon Burge for Wasabi Systems, Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed for the NetBSD Project by 20 * Wasabi Systems, Inc. 21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 * or promote products derived from this software without specific prior 23 * written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38 /* 39 * Copyright (c) 1992, 1993 40 * The Regents of the University of California. All rights reserved. 41 * 42 * This code is derived from software contributed to Berkeley by 43 * the Systems Programming Group of the University of Utah Computer 44 * Science Department, The Mach Operating System project at 45 * Carnegie-Mellon University and Ralph Campbell. 46 * 47 * Redistribution and use in source and binary forms, with or without 48 * modification, are permitted provided that the following conditions 49 * are met: 50 * 1. Redistributions of source code must retain the above copyright 51 * notice, this list of conditions and the following disclaimer. 52 * 2. Redistributions in binary form must reproduce the above copyright 53 * notice, this list of conditions and the following disclaimer in the 54 * documentation and/or other materials provided with the distribution. 55 * 3. Neither the name of the University nor the names of its contributors 56 * may be used to endorse or promote products derived from this software 57 * without specific prior written permission. 58 * 59 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 60 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 61 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 62 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 63 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 64 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 65 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 66 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 67 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 68 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 69 * SUCH DAMAGE. 70 * 71 * @(#)machdep.c 8.3 (Berkeley) 1/12/94 72 * from: Utah Hdr: machdep.c 1.63 91/04/24 73 */ 74 /* 75 * Copyright (c) 1988 University of Utah. 76 * 77 * This code is derived from software contributed to Berkeley by 78 * the Systems Programming Group of the University of Utah Computer 79 * Science Department, The Mach Operating System project at 80 * Carnegie-Mellon University and Ralph Campbell. 81 * 82 * Redistribution and use in source and binary forms, with or without 83 * modification, are permitted provided that the following conditions 84 * are met: 85 * 1. Redistributions of source code must retain the above copyright 86 * notice, this list of conditions and the following disclaimer. 87 * 2. Redistributions in binary form must reproduce the above copyright 88 * notice, this list of conditions and the following disclaimer in the 89 * documentation and/or other materials provided with the distribution. 90 * 3. All advertising materials mentioning features or use of this software 91 * must display the following acknowledgement: 92 * This product includes software developed by the University of 93 * California, Berkeley and its contributors. 94 * 4. Neither the name of the University nor the names of its contributors 95 * may be used to endorse or promote products derived from this software 96 * without specific prior written permission. 97 * 98 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 99 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 100 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 101 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 102 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 103 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 104 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 105 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 106 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 107 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 108 * SUCH DAMAGE. 109 * 110 * @(#)machdep.c 8.3 (Berkeley) 1/12/94 111 * from: Utah Hdr: machdep.c 1.63 91/04/24 112 */ 113 114 #include <sys/cdefs.h> 115 __KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.1.2.13 2010/01/08 08:01:22 cliff Exp $"); 116 117 #include "opt_ddb.h" 118 #include "opt_com.h" 119 #include "opt_execfmt.h" 120 #include "opt_memsize.h" 121 122 #include <sys/param.h> 123 #include <sys/systm.h> 124 #include <sys/kernel.h> 125 #include <sys/buf.h> 126 #include <sys/reboot.h> 127 #include <sys/user.h> 128 #include <sys/mount.h> 129 #include <sys/kcore.h> 130 #include <sys/boot_flag.h> 131 #include <sys/termios.h> 132 #include <sys/ksyms.h> 133 #include <sys/bus.h> 134 #include <sys/device.h> 135 #include <sys/extent.h> 136 #include <sys/malloc.h> 137 138 #include <uvm/uvm_extern.h> 139 140 #include <dev/cons.h> 141 142 #include "ksyms.h" 143 144 #if NKSYMS || defined(DDB) || defined(LKM) 145 #include <machine/db_machdep.h> 146 #include <ddb/db_extern.h> 147 #endif 148 149 #include <machine/cpu.h> 150 #include <machine/psl.h> 151 152 #include "com.h" 153 #if NCOM == 0 154 #error no serial console 155 #endif 156 157 #include <dev/ic/comreg.h> 158 #include <dev/ic/comvar.h> 159 160 #include <mips/rmi/rmixl_comvar.h> 161 #include <mips/rmi/rmixlvar.h> 162 #include <mips/rmi/rmixl_firmware.h> 163 #include <mips/rmi/rmixlreg.h> 164 165 #ifdef MACHDEP_DEBUG 166 int machdep_debug=MACHDEP_DEBUG; 167 # define DPRINTF(x) do { if (machdep_debug) printf x ; } while(0) 168 #else 169 # define DPRINTF(x) 170 #endif 171 172 #ifndef CONSFREQ 173 # define CONSFREQ 66000000 174 #endif 175 #ifndef CONSPEED 176 # define CONSPEED 38400 177 #endif 178 #ifndef CONMODE 179 # define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | PARENB)) | CS8) 180 #endif 181 #ifndef CONSADDR 182 # define CONSADDR RMIXL_IO_DEV_UART_1 183 #endif 184 185 int comcnfreq = CONSFREQ; 186 int comcnspeed = CONSPEED; 187 tcflag_t comcnmode = CONMODE; 188 bus_addr_t comcnaddr = (bus_addr_t)CONSADDR; 189 190 struct rmixl_config rmixl_configuration; 191 192 193 /* 194 * array of tested firmware versions 195 * if you find new ones and they work 196 * please add them 197 */ 198 static uint64_t rmiclfw_psb_versions[] = { 199 0x4958d4fb00000056ULL, 200 0x49a5a8fa00000056ULL, 201 0x4aacdb6a00000056ULL, 202 }; 203 #define RMICLFW_PSB_VERSIONS_LEN \ 204 (sizeof(rmiclfw_psb_versions)/sizeof(rmiclfw_psb_versions[0])) 205 206 /* 207 * kernel copies of firmware info 208 */ 209 static rmixlfw_info_t rmixlfw_info; 210 static rmixlfw_mmap_t rmixlfw_phys_mmap; 211 static rmixlfw_mmap_t rmixlfw_avail_mmap; 212 #define RMIXLFW_INFOP_LEGAL 0x8c000000 213 214 215 /* 216 * storage for fixed extent used to allocate physical address regions 217 * because extent(9) start and end values are u_long, they are only 218 * 32 bits on a 32 bit kernel, which is insuffucuent since XLS physical 219 * address is 40 bits wide. So the "physaddr" map stores regions 220 * in units of megabytes. 221 */ 222 static u_long rmixl_physaddr_storage[ 223 EXTENT_FIXED_STORAGE_SIZE(32)/sizeof(u_long) 224 ]; 225 226 /* For sysctl_hw. */ 227 extern char cpu_model[]; 228 229 /* Our exported CPU info; we can have only one. */ 230 struct cpu_info cpu_info_store; 231 232 /* Maps for VM objects. */ 233 struct vm_map *mb_map = NULL; 234 struct vm_map *phys_map = NULL; 235 236 int physmem; /* Total physical memory */ 237 238 int netboot; /* Are we netbooting? */ 239 240 241 phys_ram_seg_t mem_clusters[VM_PHYSSEG_MAX]; 242 u_int mem_cluster_cnt; 243 244 245 void configure(void); 246 void mach_init(int, int32_t *, void *, int64_t); 247 static u_long rmixlfw_init(int64_t); 248 static u_long mem_clusters_init(rmixlfw_mmap_t *, rmixlfw_mmap_t *); 249 static void __attribute__((__noreturn__)) rmixl_reset(void); 250 static void rmixl_physaddr_init(void); 251 static u_int ram_seg_resv(phys_ram_seg_t *, u_int, u_quad_t, u_quad_t); 252 void rmixlfw_mmap_print(rmixlfw_mmap_t *); 253 254 255 /* 256 * safepri is a safe priority for sleep to set for a spin-wait during 257 * autoconfiguration or after a panic. Used as an argument to splx(). 258 */ 259 int safepri = MIPS1_PSL_LOWIPL; 260 261 /* 262 * Do all the stuff that locore normally does before calling main(). 263 */ 264 void 265 mach_init(int argc, int32_t *argv, void *envp, int64_t infop) 266 { 267 struct rmixl_config *rcp = &rmixl_configuration; 268 void *kernend; 269 u_long memsize; 270 u_int vm_cluster_cnt; 271 uint32_t r; 272 phys_ram_seg_t vm_clusters[VM_PHYSSEG_MAX]; 273 extern char edata[], end[]; 274 275 rmixl_mtcr(0, 1); /* disable all threads except #0 */ 276 277 r = rmixl_mfcr(0x300); 278 r &= ~__BIT(14); /* disabled Unaligned Access */ 279 rmixl_mtcr(0x300, r); 280 281 rmixl_mtcr(0x400, 0); /* enable MMU clock gating */ 282 /* set single MMU Thread Mode */ 283 /* TLB is partitioned (1 partition) */ 284 285 /* 286 * Clear the BSS segment. 287 */ 288 kernend = (void *)mips_round_page(end); 289 memset(edata, 0, (char *)kernend - edata); 290 291 /* 292 * Set up the exception vectors and CPU-specific function 293 * vectors early on. We need the wbflush() vector set up 294 * before comcnattach() is called (or at least before the 295 * first printf() after that is called). 296 * Also clears the I+D caches. 297 */ 298 mips_vector_init(); 299 300 memsize = rmixlfw_init(infop); 301 302 /* set the VM page size */ 303 uvm_setpagesize(); 304 305 physmem = btoc(memsize); 306 307 rmixl_obio_eb_bus_mem_init(&rcp->rc_obio_eb_memt, rcp); 308 309 #if NCOM > 0 310 rmixl_com_cnattach(comcnaddr, comcnspeed, comcnfreq, 311 COM_TYPE_NORMAL, comcnmode); 312 #endif 313 314 printf("\nNetBSD/rmixl\n"); 315 printf("memsize = %#lx\n", memsize); 316 317 rmixl_physaddr_init(); 318 319 /* 320 * Obtain the cpu frequency 321 * Compute the number of ticks for hz. 322 * Compute the delay divisor. 323 * Double the Hz if this CPU runs at twice the 324 * external/cp0-count frequency 325 */ 326 curcpu()->ci_cpu_freq = rmixlfw_info.cpu_frequency; 327 curcpu()->ci_cycles_per_hz = (curcpu()->ci_cpu_freq + hz / 2) / hz; 328 curcpu()->ci_divisor_delay = 329 ((curcpu()->ci_cpu_freq + 500000) / 1000000); 330 if (mips_cpu_flags & CPU_MIPS_DOUBLE_COUNT) 331 curcpu()->ci_cpu_freq *= 2; 332 333 /* 334 * Look at arguments passed to us and compute boothowto. 335 * - rmixl firmware gives us a 32 bit argv[i], so adapt 336 * by forcing sign extension in cast to (char *) 337 */ 338 boothowto = RB_AUTOBOOT; 339 for (int i = 1; i < argc; i++) { 340 for (char *cp = (char *)(intptr_t)argv[i]; *cp; cp++) { 341 int howto; 342 /* Ignore superfluous '-', if there is one */ 343 if (*cp == '-') 344 continue; 345 346 howto = 0; 347 BOOT_FLAG(*cp, howto); 348 if (howto != 0) 349 boothowto |= howto; 350 #ifdef DIAGNOSTIC 351 else 352 printf("bootflag '%c' not recognised\n", *cp); 353 #endif 354 } 355 } 356 #ifdef DIAGNOSTIC 357 printf("boothowto %#x\n", boothowto); 358 #endif 359 360 /* 361 * Reserve pages from the VM system. 362 * to maintain mem_clusters[] as a map of raw ram, 363 * copy into temporary table vm_clusters[] 364 * work on that and use it to feed vm_physload() 365 */ 366 KASSERT(sizeof(mem_clusters) == sizeof(vm_clusters)); 367 memcpy(&vm_clusters, &mem_clusters, sizeof(vm_clusters)); 368 vm_cluster_cnt = mem_cluster_cnt; 369 370 /* reserve 0..start..kernend pages */ 371 vm_cluster_cnt = ram_seg_resv(vm_clusters, vm_cluster_cnt, 372 0, round_page(MIPS_KSEG0_TO_PHYS(kernend))); 373 374 /* reserve reset exception vector page */ 375 /* should never be in our clusters anyway... */ 376 vm_cluster_cnt = ram_seg_resv(vm_clusters, vm_cluster_cnt, 377 0x1FC00000, 0x1FC00000+NBPG); 378 379 /* 380 * Load vm_clusters[] into the VM system. 381 */ 382 mips_page_physload(MIPS_KSEG0_START, (vaddr_t) kernend, 383 vm_clusters, vm_cluster_cnt, NULL, 0); 384 385 /* 386 * Initialize error message buffer (at end of core). 387 */ 388 mips_init_msgbuf(); 389 390 pmap_bootstrap(); 391 392 /* 393 * Allocate space for proc0's USPACE. 394 */ 395 mips_init_lwp0_uarea(); 396 397 /* 398 * Initialize debuggers, and break into them, if appropriate. 399 */ 400 #if NKSYMS || defined(DDB) || defined(LKM) 401 ksyms_init(0, 0, 0); 402 #endif 403 404 #if defined(DDB) 405 if (boothowto & RB_KDB) 406 Debugger(); 407 #endif 408 } 409 410 /* 411 * ram_seg_resv - cut reserved regions out of segs, fragmenting as needed 412 * 413 * we simply build a new table of segs, then copy it back over the given one 414 * this is inefficient but simple and called only a few times 415 * 416 * note: 'last' here means 1st addr past the end of the segment (start+size) 417 */ 418 static u_int 419 ram_seg_resv(phys_ram_seg_t *segs, u_int nsegs, 420 u_quad_t resv_first, u_quad_t resv_last) 421 { 422 u_quad_t first, last; 423 int new_nsegs=0; 424 int resv_flag; 425 phys_ram_seg_t new_segs[VM_PHYSSEG_MAX]; 426 427 for (u_int i=0; i < nsegs; i++) { 428 resv_flag = 0; 429 first = trunc_page(segs[i].start); 430 last = round_page(segs[i].start + segs[i].size); 431 432 KASSERT(new_nsegs < VM_PHYSSEG_MAX); 433 if ((resv_first <= first) && (resv_last >= last)) { 434 /* whole segment is resverved */ 435 continue; 436 } 437 if ((resv_first > first) && (resv_first < last)) { 438 u_quad_t new_last; 439 440 /* 441 * reserved start in segment 442 * salvage the leading fragment 443 */ 444 resv_flag = 1; 445 new_last = last - (last - resv_first); 446 KASSERT (new_last > first); 447 new_segs[new_nsegs].start = first; 448 new_segs[new_nsegs].size = new_last - first; 449 new_nsegs++; 450 } 451 if ((resv_last > first) && (resv_last < last)) { 452 u_quad_t new_first; 453 454 /* 455 * reserved end in segment 456 * salvage the trailing fragment 457 */ 458 resv_flag = 1; 459 new_first = first + (resv_last - first); 460 KASSERT (last > (new_first + NBPG)); 461 new_segs[new_nsegs].start = new_first; 462 new_segs[new_nsegs].size = last - new_first; 463 new_nsegs++; 464 } 465 if (resv_flag == 0) { 466 /* 467 * nothing reserved here, take it all 468 */ 469 new_segs[new_nsegs].start = first; 470 new_segs[new_nsegs].size = last - first; 471 new_nsegs++; 472 } 473 474 } 475 476 memcpy(segs, new_segs, sizeof(new_segs)); 477 478 return new_nsegs; 479 } 480 481 /* 482 * create an extent for physical address space 483 * these are in units of MB for sake of compression (for sake of 32 bit kernels) 484 * allocate the regions where we have known functions (DRAM, IO, etc) 485 * what remains can be allocated as needed for other stuff 486 * e.g. to configure BARs that are not already initialized and enabled. 487 */ 488 static void 489 rmixl_physaddr_init(void) 490 { 491 struct extent *ext; 492 unsigned long start = 0UL; 493 unsigned long end = (__BIT(40) / (1024 * 1024)) -1; 494 u_long base; 495 u_long size; 496 uint32_t r; 497 498 ext = extent_create("physaddr", start, end, M_DEVBUF, 499 (void *)rmixl_physaddr_storage, sizeof(rmixl_physaddr_storage), 500 EX_NOWAIT | EX_NOCOALESCE); 501 502 if (ext == NULL) 503 panic("%s: extent_create failed", __func__); 504 505 /* 506 * grab regions per DRAM BARs 507 */ 508 for (u_int i=0; i < RMIXL_SBC_DRAM_NBARS; i++) { 509 r = RMIXL_IOREG_READ(RMIXL_SBC_DRAM_BAR(i)); 510 if ((r & RMIXL_DRAM_BAR_STATUS) == 0) 511 continue; /* not enabled */ 512 base = (u_long)(DRAM_BAR_TO_BASE((uint64_t)r) / (1024 * 1024)); 513 size = (u_long)(DRAM_BAR_TO_SIZE((uint64_t)r) / (1024 * 1024)); 514 515 DPRINTF(("%s: %d: %d: 0x%08x -- 0x%010lx:%lu MB\n", 516 __func__, __LINE__, i, r, base * (1024 * 1024), size)); 517 if (extent_alloc_region(ext, base, size, EX_NOWAIT) != 0) 518 panic("%s: extent_alloc_region(%p, %#lx, %#lx, %#x) " 519 "failed", __func__, ext, base, size, EX_NOWAIT); 520 } 521 522 /* 523 * grab regions per PCIe CFG, ECFG, IO, MEM BARs 524 */ 525 r = RMIXL_IOREG_READ(RMIXL_SBC_PCIE_CFG_BAR); 526 if ((r & RMIXL_PCIE_CFG_BAR_ENB) != 0) { 527 base = (u_long)(RMIXL_PCIE_CFG_BAR_TO_BA((uint64_t)r) 528 / (1024 * 1024)); 529 size = (u_long)RMIXL_PCIE_CFG_SIZE / (1024 * 1024); 530 DPRINTF(("%s: %d: %s: 0x%08x -- 0x%010lx:%ld MB\n", __func__, 531 __LINE__, "CFG", r, base * 1024 * 1024, size)); 532 if (extent_alloc_region(ext, base, size, EX_NOWAIT) != 0) 533 panic("%s: extent_alloc_region(%p, %#lx, %#lx, %#x) " 534 "failed", __func__, ext, base, size, EX_NOWAIT); 535 } 536 r = RMIXL_IOREG_READ(RMIXL_SBC_PCIE_ECFG_BAR); 537 if ((r & RMIXL_PCIE_ECFG_BAR_ENB) != 0) { 538 base = (u_long)(RMIXL_PCIE_ECFG_BAR_TO_BA((uint64_t)r) 539 / (1024 * 1024)); 540 size = (u_long)RMIXL_PCIE_ECFG_SIZE / (1024 * 1024); 541 DPRINTF(("%s: %d: %s: 0x%08x -- 0x%010lx:%ld MB\n", __func__, 542 __LINE__, "ECFG", r, base * 1024 * 1024, size)); 543 if (extent_alloc_region(ext, base, size, EX_NOWAIT) != 0) 544 panic("%s: extent_alloc_region(%p, %#lx, %#lx, %#x) " 545 "failed", __func__, ext, base, size, EX_NOWAIT); 546 } 547 r = RMIXL_IOREG_READ(RMIXL_SBC_PCIE_MEM_BAR); 548 if ((r & RMIXL_PCIE_MEM_BAR_ENB) != 0) { 549 base = (u_long)(RMIXL_PCIE_MEM_BAR_TO_BA((uint64_t)r) 550 / (1024 * 1024)); 551 size = (u_long)(RMIXL_PCIE_MEM_BAR_TO_SIZE((uint64_t)r) 552 / (1024 * 1024)); 553 DPRINTF(("%s: %d: %s: 0x%08x -- 0x%010lx:%ld MB\n", __func__, 554 __LINE__, "MEM", r, base * 1024 * 1024, size)); 555 if (extent_alloc_region(ext, base, size, EX_NOWAIT) != 0) 556 panic("%s: extent_alloc_region(%p, %#lx, %#lx, %#x) " 557 "failed", __func__, ext, base, size, EX_NOWAIT); 558 } 559 r = RMIXL_IOREG_READ(RMIXL_SBC_PCIE_IO_BAR); 560 if ((r & RMIXL_PCIE_IO_BAR_ENB) != 0) { 561 base = (u_long)(RMIXL_PCIE_IO_BAR_TO_BA((uint64_t)r) 562 / (1024 * 1024)); 563 size = (u_long)(RMIXL_PCIE_IO_BAR_TO_SIZE((uint64_t)r) 564 / (1024 * 1024)); 565 DPRINTF(("%s: %d: %s: 0x%08x -- 0x%010lx:%ld MB\n", __func__, 566 __LINE__, "IO", r, base * 1024 * 1024, size)); 567 if (extent_alloc_region(ext, base, size, EX_NOWAIT) != 0) 568 panic("%s: extent_alloc_region(%p, %#lx, %#lx, %#x) " 569 "failed", __func__, ext, base, size, EX_NOWAIT); 570 } 571 572 /* 573 * at this point all regions left in "physaddr" extent 574 * are unused holes in the physical adress space 575 * available for use as needed. 576 */ 577 rmixl_configuration.rc_phys_ex = ext; 578 #ifdef MACHDEP_DEBUG 579 extent_print(ext); 580 #endif 581 } 582 583 static u_long 584 rmixlfw_init(int64_t infop) 585 { 586 struct rmixl_config *rcp = &rmixl_configuration; 587 588 strcpy(cpu_model, "RMI XLS616ATX VIIA"); /* XXX */ 589 590 infop |= MIPS_KSEG0_START; 591 rmixlfw_info = *(rmixlfw_info_t *)(intptr_t)infop; 592 593 for (int i=0; i < RMICLFW_PSB_VERSIONS_LEN; i++) { 594 if (rmiclfw_psb_versions[i] == rmixlfw_info.psb_version) 595 goto found; 596 } 597 598 rcp->rc_io_pbase = RMIXL_IO_DEV_PBASE; 599 rmixl_putchar_init(rcp->rc_io_pbase); 600 601 #ifdef DIAGNOSTIC 602 rmixl_puts("\r\nWARNING: untested psb_version: "); 603 rmixl_puthex64(rmixlfw_info.psb_version); 604 rmixl_puts("\r\n"); 605 #endif 606 607 #ifdef MEMSIZE 608 /* XXX trust and use MEMSIZE */ 609 mem_clusters[0].start = 0; 610 mem_clusters[0].size = MEMSIZE; 611 mem_cluster_cnt = 1; 612 return MEMSIZE; 613 #else 614 rmixl_puts("\r\nERROR: configure MEMSIZE\r\n"); 615 cpu_reboot(RB_HALT, NULL); 616 /* NOTREACHED */ 617 #endif 618 619 found: 620 rcp->rc_io_pbase = MIPS_KSEG1_TO_PHYS(rmixlfw_info.io_base); 621 rmixl_putchar_init(rcp->rc_io_pbase); 622 #ifdef MACHDEP_DEBUG 623 rmixl_puts("\r\ninfop: "); 624 rmixl_puthex64((uint64_t)(intptr_t)infop); 625 #endif 626 #ifdef DIAGNOSTIC 627 rmixl_puts("\r\nrecognized psb_version: "); 628 rmixl_puthex64(rmixlfw_info.psb_version); 629 rmixl_puts("\r\n"); 630 #endif 631 632 return mem_clusters_init( 633 (rmixlfw_mmap_t *)(intptr_t)rmixlfw_info.psb_physaddr_map, 634 (rmixlfw_mmap_t *)(intptr_t)rmixlfw_info.avail_mem_map); 635 } 636 637 void 638 rmixlfw_mmap_print(rmixlfw_mmap_t *map) 639 { 640 #ifdef MACHDEP_DEBUG 641 for (uint32_t i=0; i < map->nmmaps; i++) { 642 rmixl_puthex32(i); 643 rmixl_puts(", "); 644 rmixl_puthex64(map->entry[i].start); 645 rmixl_puts(", "); 646 rmixl_puthex64(map->entry[i].size); 647 rmixl_puts(", "); 648 rmixl_puthex32(map->entry[i].type); 649 rmixl_puts("\r\n"); 650 } 651 #endif 652 } 653 654 /* 655 * mem_clusters_init 656 * 657 * initialize mem_clusters[] table based on memory address mapping 658 * provided by boot firmware. 659 * 660 * prefer avail_mem_map if we can, otherwise use psb_physaddr_map. 661 * these will be limited by MEMSIZE if it is configured. 662 * if neither are available, just use MEMSIZE. 663 */ 664 static u_long 665 mem_clusters_init( 666 rmixlfw_mmap_t *psb_physaddr_map, 667 rmixlfw_mmap_t *avail_mem_map) 668 { 669 rmixlfw_mmap_t *map = NULL; 670 const char *mapname; 671 uint64_t sz; 672 uint64_t sum; 673 u_int cnt; 674 #ifdef MEMSIZE 675 u_long memsize = MEMSIZE; 676 #endif 677 678 #ifdef MACHDEP_DEBUG 679 rmixl_puts("psb_physaddr_map: "); 680 rmixl_puthex64((uint64_t)(intptr_t)psb_physaddr_map); 681 rmixl_puts("\r\n"); 682 #endif 683 if (psb_physaddr_map != NULL) { 684 rmixlfw_phys_mmap = *psb_physaddr_map; 685 map = &rmixlfw_phys_mmap; 686 mapname = "psb_physaddr_map"; 687 rmixlfw_mmap_print(map); 688 } 689 #ifdef DIAGNOSTIC 690 else { 691 rmixl_puts("WARNING: no psb_physaddr_map\r\n"); 692 } 693 #endif 694 695 #ifdef MACHDEP_DEBUG 696 rmixl_puts("avail_mem_map: "); 697 rmixl_puthex64((uint64_t)(intptr_t)avail_mem_map); 698 rmixl_puts("\r\n"); 699 #endif 700 if (avail_mem_map != NULL) { 701 rmixlfw_avail_mmap = *avail_mem_map; 702 map = &rmixlfw_avail_mmap; 703 mapname = "avail_mem_map"; 704 rmixlfw_mmap_print(map); 705 } 706 #ifdef DIAGNOSTIC 707 else { 708 rmixl_puts("WARNING: no avail_mem_map\r\n"); 709 } 710 #endif 711 712 if (map == NULL) { 713 #ifndef MEMSIZE 714 rmixl_puts("panic: no firmware memory map, " 715 "must configure MEMSIZE\r\n"); 716 for(;;); /* XXX */ 717 #else 718 #ifdef DIAGNOSTIC 719 rmixl_puts("WARNING: no avail_mem_map, " 720 "using MEMSIZE\r\n"); 721 #endif 722 723 mem_clusters[0].start = 0; 724 mem_clusters[0].size = MEMSIZE; 725 mem_cluster_cnt = 1; 726 return MEMSIZE; 727 #endif /* MEMSIZE */ 728 } 729 730 #ifdef DIAGNOSTIC 731 rmixl_puts("using "); 732 rmixl_puts(mapname); 733 rmixl_puts("\r\n"); 734 #endif 735 #ifdef MACHDEP_DEBUG 736 rmixl_puts("memory clusters:\r\n"); 737 #endif 738 sum = 0; 739 cnt = 0; 740 for (uint32_t i=0; i < map->nmmaps; i++) { 741 if (map->entry[i].type != RMIXLFW_MMAP_TYPE_RAM) 742 continue; 743 mem_clusters[cnt].start = map->entry[i].start; 744 sz = map->entry[i].size; 745 sum += sz; 746 mem_clusters[cnt].size = sz; 747 #ifdef MACHDEP_DEBUG 748 rmixl_puthex32(i); 749 rmixl_puts(": "); 750 rmixl_puthex64(mem_clusters[cnt].start); 751 rmixl_puts(", "); 752 rmixl_puthex64(sz); 753 rmixl_puts(": "); 754 rmixl_puthex64(sum); 755 rmixl_puts("\r\n"); 756 #endif 757 #ifdef MEMSIZE 758 /* 759 * configurably limit memsize 760 */ 761 if (sum == memsize) 762 break; 763 if (sum > memsize) { 764 uint64_t tmp; 765 766 tmp = sum - memsize; 767 sz -= tmp; 768 sum -= tmp; 769 mem_clusters[cnt].size = sz; 770 cnt++; 771 break; 772 } 773 #endif 774 cnt++; 775 } 776 mem_cluster_cnt = cnt; 777 return sum; 778 } 779 780 void 781 consinit(void) 782 { 783 784 /* 785 * Everything related to console initialization is done 786 * in mach_init(). 787 */ 788 } 789 790 /* 791 * Allocate memory for variable-sized tables, 792 */ 793 void 794 cpu_startup() 795 { 796 vaddr_t minaddr, maxaddr; 797 char pbuf[9]; 798 799 /* 800 * Good {morning,afternoon,evening,night}. 801 */ 802 printf("%s%s", copyright, version); 803 format_bytes(pbuf, sizeof(pbuf), ctob((uint64_t)physmem)); 804 printf("total memory = %s\n", pbuf); 805 806 /* 807 * Virtual memory is bootstrapped -- notify the bus spaces 808 * that memory allocation is now safe. 809 */ 810 rmixl_configuration.rc_mallocsafe = 1; 811 812 minaddr = 0; 813 /* 814 * Allocate a submap for physio. 815 */ 816 phys_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr, 817 VM_PHYS_SIZE, 0, FALSE, NULL); 818 819 /* 820 * (No need to allocate an mbuf cluster submap. Mbuf clusters 821 * are allocated via the pool allocator, and we use XKSEG to 822 * map those pages.) 823 */ 824 825 format_bytes(pbuf, sizeof(pbuf), ptoa(uvmexp.free)); 826 printf("avail memory = %s\n", pbuf); 827 } 828 829 int waittime = -1; 830 831 void 832 cpu_reboot(howto, bootstr) 833 int howto; 834 char *bootstr; 835 { 836 837 /* Take a snapshot before clobbering any registers. */ 838 if (curproc) 839 savectx((struct user *)curpcb); 840 841 if (cold) { 842 howto |= RB_HALT; 843 goto haltsys; 844 } 845 846 /* If "always halt" was specified as a boot flag, obey. */ 847 if (boothowto & RB_HALT) 848 howto |= RB_HALT; 849 850 boothowto = howto; 851 if ((howto & RB_NOSYNC) == 0 && (waittime < 0)) { 852 waittime = 0; 853 vfs_shutdown(); 854 855 /* 856 * If we've been adjusting the clock, the todr 857 * will be out of synch; adjust it now. 858 */ 859 resettodr(); 860 } 861 862 splhigh(); 863 864 if (howto & RB_DUMP) 865 dumpsys(); 866 867 haltsys: 868 doshutdownhooks(); 869 870 if (howto & RB_HALT) { 871 printf("\n"); 872 printf("The operating system has halted.\n"); 873 printf("Please press any key to reboot.\n\n"); 874 cnpollc(1); /* For proper keyboard command handling */ 875 cngetc(); 876 cnpollc(0); 877 } 878 879 printf("rebooting...\n\n"); 880 881 rmixl_reset(); 882 } 883 884 /* 885 * goodbye world 886 */ 887 void __attribute__((__noreturn__)) 888 rmixl_reset(void) 889 { 890 uint32_t r; 891 892 r = RMIXL_IOREG_READ(RMIXL_IO_DEV_GPIO + RMIXL_GPIO_RESET); 893 r |= RMIXL_GPIO_RESET_RESET; 894 RMIXL_IOREG_WRITE(RMIXL_IO_DEV_GPIO + RMIXL_GPIO_RESET, r); 895 896 printf("soft reset failed, spinning...\n"); 897 for (;;); 898 } 899
Indexes created Fri Oct 31 11:10:07 GMT 2025