machdep.c revision 1.1.2.7
1 /* $NetBSD: machdep.c,v 1.1.2.7 2009/11/15 22:59:36 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 1.1.2.7 2009/11/15 22:59:36 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 #define MACHDEP_DEBUG 1 166 #ifdef MACHDEP_DEBUG 167 int machdep_debug=MACHDEP_DEBUG; 168 # define DPRINTF(x) do { if (machdep_debug) printf x ; } while(0) 169 #else 170 # define DPRINTF(x) 171 #endif 172 173 #ifndef CONSFREQ 174 # define CONSFREQ -1 /* inherit from firmware */ 175 #endif 176 #ifndef CONSPEED 177 # define CONSPEED 38400 178 #endif 179 #ifndef CONMODE 180 # define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | PARENB)) | CS8) 181 #endif 182 #ifndef CONSADDR 183 # define CONSADDR RMIXL_IO_DEV_UART_1 184 #endif 185 186 int comcnfreq = CONSFREQ; 187 int comcnspeed = CONSPEED; 188 tcflag_t comcnmode = CONMODE; 189 bus_addr_t comcnaddr = (bus_addr_t)CONSADDR; 190 191 struct rmixl_config rmixl_configuration; 192 193 194 /* 195 * array of tested firmware versions 196 * if you find new ones and they work 197 * please add them 198 */ 199 static uint64_t rmiclfw_psb_versions[] = { 200 0x4958d4fb00000056ULL, 201 0x49a5a8fa00000056ULL, 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_exit(int); 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 extern struct user *proc0paddr; 262 263 /* 264 * Do all the stuff that locore normally does before calling main(). 265 */ 266 void 267 mach_init(int argc, int32_t *argv, void *envp, int64_t infop) 268 { 269 struct rmixl_config *rcp = &rmixl_configuration; 270 void *kernend, *v; 271 u_long memsize; 272 u_int vm_cluster_cnt; 273 phys_ram_seg_t vm_clusters[VM_PHYSSEG_MAX]; 274 extern char edata[], end[]; 275 276 /* 277 * Clear the BSS segment. 278 */ 279 kernend = (void *)mips_round_page(end); 280 memset(edata, 0, (char *)kernend - edata); 281 282 /* 283 * Set up the exception vectors and CPU-specific function 284 * vectors early on. We need the wbflush() vector set up 285 * before comcnattach() is called (or at least before the 286 * first printf() after that is called). 287 * Also clears the I+D caches. 288 */ 289 mips_vector_init(); 290 291 memsize = rmixlfw_init(infop); 292 293 /* set the VM page size */ 294 uvm_setpagesize(); 295 296 physmem = btoc(memsize); 297 298 rmixl_obio_bus_mem_init(&rcp->rc_obio_memt, rcp); /* need for console */ 299 300 #if NCOM > 0 301 rmixl_com_cnattach(comcnaddr, comcnspeed, -1, 302 COM_TYPE_NORMAL, comcnmode); 303 #endif 304 305 printf("\nNetBSD/rmixl\n"); 306 printf("memsize = %#lx\n", memsize); 307 308 rmixl_physaddr_init(); 309 310 /* 311 * Obtain the cpu frequency 312 * Compute the number of ticks for hz. 313 * Compute the delay divisor. 314 * Double the Hz if this CPU runs at twice the 315 * external/cp0-count frequency 316 */ 317 curcpu()->ci_cpu_freq = rmixlfw_info.cpu_frequency; 318 curcpu()->ci_cycles_per_hz = (curcpu()->ci_cpu_freq + hz / 2) / hz; 319 curcpu()->ci_divisor_delay = 320 ((curcpu()->ci_cpu_freq + 500000) / 1000000); 321 if (mips_cpu_flags & CPU_MIPS_DOUBLE_COUNT) 322 curcpu()->ci_cpu_freq *= 2; 323 324 /* 325 * Look at arguments passed to us and compute boothowto. 326 * - rmixl firmware gives us a 32 bit argv[i], so adapt 327 * by forcing sign extension in cast to (char *) 328 */ 329 boothowto = RB_AUTOBOOT; 330 for (int i = 1; i < argc; i++) { 331 for (char *cp = (char *)(intptr_t)argv[i]; *cp; cp++) { 332 int howto; 333 /* Ignore superfluous '-', if there is one */ 334 if (*cp == '-') 335 continue; 336 337 howto = 0; 338 BOOT_FLAG(*cp, howto); 339 if (howto != 0) 340 boothowto |= howto; 341 #ifdef DIAGNOSTIC 342 else 343 printf("bootflag '%c' not recognised\n", *cp); 344 #endif 345 } 346 } 347 #ifdef DIAGNOSTIC 348 printf("boothowto %#x\n", boothowto); 349 #endif 350 351 /* 352 * Reserve pages from the VM system. 353 * to maintain mem_clusters[] as a map of raw ram, 354 * copy into temporary table vm_clusters[] 355 * work on that and use it to feed vm_physload() 356 */ 357 KASSERT(sizeof(mem_clusters) == sizeof(vm_clusters)); 358 memcpy(&vm_clusters, &mem_clusters, sizeof(vm_clusters)); 359 vm_cluster_cnt = mem_cluster_cnt; 360 361 /* reserve 0..start..kernend pages */ 362 vm_cluster_cnt = ram_seg_resv(vm_clusters, vm_cluster_cnt, 363 0, round_page(MIPS_KSEG0_TO_PHYS(kernend))); 364 365 /* reserve reset exception vector page */ 366 vm_cluster_cnt = ram_seg_resv(vm_clusters, vm_cluster_cnt, 367 MIPS_KSEG1_TO_PHYS(MIPS_RESET_EXC_VEC), 368 MIPS_KSEG1_TO_PHYS(MIPS_RESET_EXC_VEC+NBPG)); 369 370 /* 371 * Load vm_clusters[] into the VM system. 372 */ 373 for (u_int i=0; i < vm_cluster_cnt; i++) { 374 u_quad_t first, last; 375 376 first = trunc_page(vm_clusters[i].start); 377 last = round_page(vm_clusters[i].start + vm_clusters[i].size); 378 DPRINTF(("%s: %d: %#"PRIx64", %#"PRIx64"\n", 379 __func__, i, first, last)); 380 uvm_page_physload(atop(first), atop(last), atop(first), 381 atop(last), VM_FREELIST_DEFAULT); 382 } 383 384 /* 385 * Initialize error message buffer (at end of core). 386 */ 387 mips_init_msgbuf(); 388 389 pmap_bootstrap(); 390 391 /* 392 * Allocate space for proc0's USPACE. 393 */ 394 v = (void *)uvm_pageboot_alloc(USPACE); 395 lwp0.l_addr = proc0paddr = (struct user *)v; 396 lwp0.l_md.md_regs = (struct frame *)((char *)v + USPACE) - 1; 397 #ifdef _LP64 398 lwp0.l_md.md_regs->f_regs[_R_SR] = MIPS_SR_KX; 399 #endif 400 proc0paddr->u_pcb.pcb_context.val[_L_SR] = 401 #ifdef _LP64 402 MIPS_SR_KX | 403 #endif 404 MIPS_INT_MASK | MIPS_SR_INT_IE; /* SR */ 405 406 407 /* 408 * Initialize debuggers, and break into them, if appropriate. 409 */ 410 #if NKSYMS || defined(DDB) || defined(LKM) 411 ksyms_init(0, 0, 0); 412 #endif 413 414 #if defined(DDB) 415 if (boothowto & RB_KDB) 416 Debugger(); 417 #endif 418 } 419 420 421 /* 422 * ram_seg_resv - cut reserved regions out of segs, fragmenting as needed 423 * 424 * we simply build a new table of segs, then copy it back over the given one 425 * this is inefficient but simple and called only a few times 426 * 427 * note: 'last' here means 1st addr past the end of the segment (start+size) 428 */ 429 static u_int 430 ram_seg_resv(phys_ram_seg_t *segs, u_int nsegs, 431 u_quad_t resv_first, u_quad_t resv_last) 432 { 433 u_quad_t first, last; 434 int new_nsegs=0; 435 int resv_flag; 436 phys_ram_seg_t new_segs[VM_PHYSSEG_MAX]; 437 438 for (u_int i=0; i < nsegs; i++) { 439 resv_flag = 0; 440 first = trunc_page(segs[i].start); 441 last = round_page(segs[i].start + segs[i].size); 442 443 KASSERT(new_nsegs < VM_PHYSSEG_MAX); 444 if ((resv_first <= first) && (resv_last >= last)) { 445 /* whole segment is resverved */ 446 continue; 447 } 448 if ((resv_first > first) && (resv_first < last)) { 449 u_quad_t new_last; 450 451 /* 452 * reserved start in segment 453 * salvage the leading fragment 454 */ 455 resv_flag = 1; 456 new_last = last - (last - resv_first); 457 KASSERT (new_last > first); 458 new_segs[new_nsegs].start = first; 459 new_segs[new_nsegs].size = new_last - first; 460 new_nsegs++; 461 } 462 if ((resv_last > first) && (resv_last < last)) { 463 u_quad_t new_first; 464 465 /* 466 * reserved end in segment 467 * salvage the trailing fragment 468 */ 469 resv_flag = 1; 470 new_first = first + (resv_last - first); 471 KASSERT (last > (new_first + NBPG)); 472 new_segs[new_nsegs].start = new_first; 473 new_segs[new_nsegs].size = last - new_first; 474 new_nsegs++; 475 } 476 if (resv_flag == 0) { 477 /* 478 * nothing reserved here, take it all 479 */ 480 new_segs[new_nsegs].start = first; 481 new_segs[new_nsegs].size = last - first; 482 new_nsegs++; 483 } 484 485 } 486 487 memcpy(segs, new_segs, sizeof(new_segs)); 488 489 return new_nsegs; 490 } 491 492 /* 493 * create an extent for physical address space 494 * these are in units of MB for sake of compression (for sake of 32 bit kernels) 495 * allocate the regions where we have known functions (DRAM, IO, etc) 496 * what remains can be allocated as needed for other stuff 497 * e.g. to configure BARs that are not already initialized and enabled. 498 */ 499 static void 500 rmixl_physaddr_init(void) 501 { 502 struct extent *ext; 503 unsigned long start = 0UL; 504 unsigned long end = (__BIT(40) / (1024 * 1024)) -1; 505 u_long base; 506 u_long size; 507 uint32_t r; 508 509 ext = extent_create("physaddr", start, end, M_DEVBUF, 510 (void *)rmixl_physaddr_storage, sizeof(rmixl_physaddr_storage), 511 EX_NOWAIT | EX_NOCOALESCE); 512 513 if (ext == NULL) 514 panic("%s: extent_create failed", __func__); 515 516 /* 517 * grab regions per DRAM BARs 518 */ 519 for (u_int i=0; i < RMIXL_SBC_DRAM_NBARS; i++) { 520 r = RMIXL_IOREG_READ(RMIXL_SBC_DRAM_BAR(i)); 521 if ((r & RMIXL_DRAM_BAR_STATUS) == 0) 522 continue; /* not enabled */ 523 base = (u_long)(DRAM_BAR_TO_BASE((uint64_t)r) / (1024 * 1024)); 524 size = (u_long)(DRAM_BAR_TO_SIZE((uint64_t)r) / (1024 * 1024)); 525 526 DPRINTF(("%s: %d: %d: 0x%08x -- 0x%010lx:%lu MB\n", 527 __func__, __LINE__, i, r, base * (1024 * 1024), size)); 528 if (extent_alloc_region(ext, base, size, EX_NOWAIT) != 0) 529 panic("%s: extent_alloc_region(%p, %#lx, %#lx, %#x) " 530 "failed", __func__, ext, base, size, EX_NOWAIT); 531 } 532 533 /* 534 * grab regions per PCIe CFG, ECFG, IO, MEM BARs 535 */ 536 r = RMIXL_IOREG_READ(RMIXL_SBC_PCIE_CFG_BAR); 537 if ((r & RMIXL_PCIE_CFG_BAR_ENB) != 0) { 538 base = (u_long)(RMIXL_PCIE_CFG_BAR_TO_BA((uint64_t)r) 539 / (1024 * 1024)); 540 size = (u_long)RMIXL_PCIE_CFG_SIZE / (1024 * 1024); 541 DPRINTF(("%s: %d: %s: 0x%08x -- 0x%010lx:%ld MB\n", __func__, 542 __LINE__, "CFG", 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_ECFG_BAR); 548 if ((r & RMIXL_PCIE_ECFG_BAR_ENB) != 0) { 549 base = (u_long)(RMIXL_PCIE_ECFG_BAR_TO_BA((uint64_t)r) 550 / (1024 * 1024)); 551 size = (u_long)RMIXL_PCIE_ECFG_SIZE / (1024 * 1024); 552 DPRINTF(("%s: %d: %s: 0x%08x -- 0x%010lx:%ld MB\n", __func__, 553 __LINE__, "ECFG", r, base * 1024 * 1024, size)); 554 if (extent_alloc_region(ext, base, size, EX_NOWAIT) != 0) 555 panic("%s: extent_alloc_region(%p, %#lx, %#lx, %#x) " 556 "failed", __func__, ext, base, size, EX_NOWAIT); 557 } 558 r = RMIXL_IOREG_READ(RMIXL_SBC_PCIE_MEM_BAR); 559 if ((r & RMIXL_PCIE_MEM_BAR_ENB) != 0) { 560 base = (u_long)(RMIXL_PCIE_MEM_BAR_TO_BA((uint64_t)r) 561 / (1024 * 1024)); 562 size = (u_long)(RMIXL_PCIE_MEM_BAR_TO_SIZE((uint64_t)r) 563 / (1024 * 1024)); 564 DPRINTF(("%s: %d: %s: 0x%08x -- 0x%010lx:%ld MB\n", __func__, 565 __LINE__, "MEM", r, base * 1024 * 1024, size)); 566 if (extent_alloc_region(ext, base, size, EX_NOWAIT) != 0) 567 panic("%s: extent_alloc_region(%p, %#lx, %#lx, %#x) " 568 "failed", __func__, ext, base, size, EX_NOWAIT); 569 } 570 r = RMIXL_IOREG_READ(RMIXL_SBC_PCIE_IO_BAR); 571 if ((r & RMIXL_PCIE_IO_BAR_ENB) != 0) { 572 base = (u_long)(RMIXL_PCIE_IO_BAR_TO_BA((uint64_t)r) 573 / (1024 * 1024)); 574 size = (u_long)(RMIXL_PCIE_IO_BAR_TO_SIZE((uint64_t)r) 575 / (1024 * 1024)); 576 DPRINTF(("%s: %d: %s: 0x%08x -- 0x%010lx:%ld MB\n", __func__, 577 __LINE__, "IO", r, base * 1024 * 1024, size)); 578 if (extent_alloc_region(ext, base, size, EX_NOWAIT) != 0) 579 panic("%s: extent_alloc_region(%p, %#lx, %#lx, %#x) " 580 "failed", __func__, ext, base, size, EX_NOWAIT); 581 } 582 583 /* 584 * at this point all regions left in "physaddr" extent 585 * are unused holes in the physical adress space 586 * available for use as needed. 587 */ 588 rmixl_configuration.rc_phys_ex = ext; 589 #ifdef MACHDEP_DEBUG 590 extent_print(ext); 591 #endif 592 } 593 594 static u_long 595 rmixlfw_init(int64_t infop) 596 { 597 struct rmixl_config *rcp = &rmixl_configuration; 598 599 strcpy(cpu_model, "RMI XLS616ATX VIIA"); /* XXX */ 600 601 infop |= MIPS_KSEG0_START; 602 rmixlfw_info = *(rmixlfw_info_t *)(intptr_t)infop; 603 604 for (int i=0; i < RMICLFW_PSB_VERSIONS_LEN; i++) { 605 if (rmiclfw_psb_versions[i] == rmixlfw_info.psb_version) 606 goto found; 607 } 608 609 rcp->rc_io_pbase = RMIXL_IO_DEV_PBASE; 610 rmixl_putchar_init(rcp->rc_io_pbase); 611 612 #ifdef DIAGNOSTIC 613 rmixl_puts("\r\nWARNING: untested psb_version: "); 614 rmixl_puthex64(rmixlfw_info.psb_version); 615 rmixl_puts("\r\n"); 616 #endif 617 return MEMSIZE; 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 tmp; 672 uint64_t sz; 673 uint64_t sum; 674 u_int cnt; 675 #ifdef MEMSIZE 676 u_long memsize = MEMSIZE; 677 #endif 678 679 #ifdef MACHDEP_DEBUG 680 rmixl_puts("psb_physaddr_map: "); 681 rmixl_puthex64((uint64_t)(intptr_t)psb_physaddr_map); 682 rmixl_puts("\r\n"); 683 #endif 684 if (psb_physaddr_map != NULL) { 685 rmixlfw_phys_mmap = *psb_physaddr_map; 686 map = &rmixlfw_phys_mmap; 687 mapname = "psb_physaddr_map"; 688 rmixlfw_mmap_print(map); 689 } 690 #ifdef DIAGNOSTIC 691 else { 692 rmixl_puts("WARNING: no psb_physaddr_map\r\n"); 693 } 694 #endif 695 696 #ifdef MACHDEP_DEBUG 697 rmixl_puts("avail_mem_map: "); 698 rmixl_puthex64((uint64_t)(intptr_t)avail_mem_map); 699 rmixl_puts("\r\n"); 700 #endif 701 if (avail_mem_map != NULL) { 702 rmixlfw_avail_mmap = *avail_mem_map; 703 map = &rmixlfw_avail_mmap; 704 mapname = "avail_mem_map"; 705 rmixlfw_mmap_print(map); 706 } 707 #ifdef DIAGNOSTIC 708 else { 709 rmixl_puts("WARNING: no avail_mem_map\r\n"); 710 } 711 #endif 712 713 if (map == NULL) { 714 #ifndef MEMSIZE 715 rmixl_puts("panic: no firmware memory map, " 716 "must configure MEMSIZE\r\n"); 717 for(;;); /* XXX */ 718 #else 719 #ifdef DIAGNOSTIC 720 rmixl_puts("WARNING: no avail_mem_map, " 721 "using MEMSIZE\r\n"); 722 #endif 723 724 mem_clusters[0].start = 0; 725 mem_clusters[0].size = MEMSIZE; 726 mem_cluster_cnt = 1; 727 return MEMSIZE; 728 #endif /* MEMSIZE */ 729 } 730 731 #ifdef DIAGNOSTIC 732 rmixl_puts("using "); 733 rmixl_puts(mapname); 734 rmixl_puts("\r\n"); 735 #endif 736 #ifdef MACHDEP_DEBUG 737 rmixl_puts("memory clusters:\r\n"); 738 #endif 739 sum = 0; 740 cnt = 0; 741 for (uint32_t i=0; i < map->nmmaps; i++) { 742 if (map->entry[i].type != RMIXLFW_MMAP_TYPE_RAM) 743 continue; 744 mem_clusters[cnt].start = map->entry[i].start; 745 sz = map->entry[i].size; 746 sum += sz; 747 mem_clusters[cnt].size = sz; 748 #ifdef MACHDEP_DEBUG 749 rmixl_puthex32(i); 750 rmixl_puts(": "); 751 rmixl_puthex64(mem_clusters[cnt].start); 752 rmixl_puts(", "); 753 rmixl_puthex64(sz); 754 rmixl_puts(": "); 755 rmixl_puthex64(sum); 756 rmixl_puts("\r\n"); 757 #endif 758 #ifdef MEMSIZE 759 /* 760 * configurably limit memsize 761 */ 762 if (sum == memsize) 763 break; 764 if (sum > memsize) { 765 tmp = sum - memsize; 766 sz -= tmp; 767 sum -= tmp; 768 mem_clusters[cnt].size = sz; 769 break; 770 } 771 #endif 772 cnt++; 773 } 774 mem_cluster_cnt = cnt; 775 return sum; 776 } 777 778 void 779 consinit(void) 780 { 781 782 /* 783 * Everything related to console initialization is done 784 * in mach_init(). 785 */ 786 } 787 788 /* 789 * Allocate memory for variable-sized tables, 790 */ 791 void 792 cpu_startup() 793 { 794 vaddr_t minaddr, maxaddr; 795 char pbuf[9]; 796 797 /* 798 * Good {morning,afternoon,evening,night}. 799 */ 800 printf("%s%s", copyright, version); 801 format_bytes(pbuf, sizeof(pbuf), ctob(physmem)); 802 printf("total memory = %s\n", pbuf); 803 804 /* 805 * Virtual memory is bootstrapped -- notify the bus spaces 806 * that memory allocation is now safe. 807 */ 808 rmixl_configuration.rc_mallocsafe = 1; 809 810 minaddr = 0; 811 /* 812 * Allocate a submap for physio. 813 */ 814 phys_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr, 815 VM_PHYS_SIZE, 0, FALSE, NULL); 816 817 /* 818 * (No need to allocate an mbuf cluster submap. Mbuf clusters 819 * are allocated via the pool allocator, and we use XKSEG to 820 * map those pages.) 821 */ 822 823 format_bytes(pbuf, sizeof(pbuf), ptoa(uvmexp.free)); 824 printf("avail memory = %s\n", pbuf); 825 } 826 827 int waittime = -1; 828 829 void 830 cpu_reboot(howto, bootstr) 831 int howto; 832 char *bootstr; 833 { 834 835 /* Take a snapshot before clobbering any registers. */ 836 if (curproc) 837 savectx((struct user *)curpcb); 838 839 if (cold) { 840 howto |= RB_HALT; 841 goto haltsys; 842 } 843 844 /* If "always halt" was specified as a boot flag, obey. */ 845 if (boothowto & RB_HALT) 846 howto |= RB_HALT; 847 848 boothowto = howto; 849 if ((howto & RB_NOSYNC) == 0 && (waittime < 0)) { 850 waittime = 0; 851 vfs_shutdown(); 852 853 /* 854 * If we've been adjusting the clock, the todr 855 * will be out of synch; adjust it now. 856 */ 857 resettodr(); 858 } 859 860 splhigh(); 861 862 if (howto & RB_DUMP) 863 dumpsys(); 864 865 haltsys: 866 doshutdownhooks(); 867 868 if (howto & RB_HALT) { 869 printf("\n"); 870 printf("The operating system has halted.\n"); 871 printf("Please press any key to reboot.\n\n"); 872 cnpollc(1); /* For proper keyboard command handling */ 873 cngetc(); 874 cnpollc(0); 875 } 876 877 printf("rebooting...\n\n"); 878 879 rmixl_exit(0); 880 } 881 882 /* 883 * goodbye world 884 */ 885 #define GPIO_CPU_RST 0xa0 /* XXX TMP */ 886 void __attribute__((__noreturn__)) 887 rmixl_exit(int howto) 888 { 889 /* use firmware callbak to reboot */ 890 void (*reset)(void) = (void *)(intptr_t)rmixlfw_info.warm_reset; 891 if (reset != 0) { 892 (*reset)(); 893 printf("warm reset callback failed, spinning...\n"); 894 } else { 895 printf("warm reset callback absent, spinning...\n"); 896 } 897 for (;;); 898 } 899
Indexes created Fri Oct 31 11:10:07 GMT 2025