1 /* $NetBSD: gemini_machdep.c,v 1.35 2023/08/10 20:02:55 andvar Exp $ */ 2 3 /* adapted from: 4 * NetBSD: sdp24xx_machdep.c,v 1.4 2008/08/27 11:03:10 matt Exp 5 */ 6 7 /* 8 * Machine dependent functions for kernel setup for TI OSK5912 board. 9 * Based on lubbock_machdep.c which in turn was based on iq80310_machhdep.c 10 * 11 * Copyright (c) 2002, 2003, 2005 Genetec Corporation. All rights reserved. 12 * Written by Hiroyuki Bessho for Genetec Corporation. 13 * 14 * Redistribution and use in source and binary forms, with or without 15 * modification, are permitted provided that the following conditions 16 * are met: 17 * 1. Redistributions of source code must retain the above copyright 18 * notice, this list of conditions and the following disclaimer. 19 * 2. Redistributions in binary form must reproduce the above copyright 20 * notice, this list of conditions and the following disclaimer in the 21 * documentation and/or other materials provided with the distribution. 22 * 3. The name of Genetec Corporation may not be used to endorse or 23 * promote products derived from this software without specific prior 24 * written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY GENETEC CORPORATION ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GENETEC CORPORATION 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 * 38 * Copyright (c) 2001 Wasabi Systems, Inc. 39 * All rights reserved. 40 * 41 * Written by Jason R. Thorpe for Wasabi Systems, Inc. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 3. All advertising materials mentioning features or use of this software 52 * must display the following acknowledgement: 53 * This product includes software developed for the NetBSD Project by 54 * Wasabi Systems, Inc. 55 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 56 * or promote products derived from this software without specific prior 57 * written permission. 58 * 59 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 60 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 61 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 62 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 63 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 64 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 65 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 66 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 67 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 68 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 69 * POSSIBILITY OF SUCH DAMAGE. 70 * 71 * Copyright (c) 1997,1998 Mark Brinicombe. 72 * Copyright (c) 1997,1998 Causality Limited. 73 * All rights reserved. 74 * 75 * Redistribution and use in source and binary forms, with or without 76 * modification, are permitted provided that the following conditions 77 * are met: 78 * 1. Redistributions of source code must retain the above copyright 79 * notice, this list of conditions and the following disclaimer. 80 * 2. Redistributions in binary form must reproduce the above copyright 81 * notice, this list of conditions and the following disclaimer in the 82 * documentation and/or other materials provided with the distribution. 83 * 3. All advertising materials mentioning features or use of this software 84 * must display the following acknowledgement: 85 * This product includes software developed by Mark Brinicombe 86 * for the NetBSD Project. 87 * 4. The name of the company nor the name of the author may be used to 88 * endorse or promote products derived from this software without specific 89 * prior written permission. 90 * 91 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 92 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 93 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 94 * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 95 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 96 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 97 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 98 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 99 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 100 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 101 * SUCH DAMAGE. 102 * 103 * Copyright (c) 2007 Microsoft 104 * All rights reserved. 105 * 106 * Redistribution and use in source and binary forms, with or without 107 * modification, are permitted provided that the following conditions 108 * are met: 109 * 1. Redistributions of source code must retain the above copyright 110 * notice, this list of conditions and the following disclaimer. 111 * 2. Redistributions in binary form must reproduce the above copyright 112 * notice, this list of conditions and the following disclaimer in the 113 * documentation and/or other materials provided with the distribution. 114 * 3. All advertising materials mentioning features or use of this software 115 * must display the following acknowledgement: 116 * This product includes software developed by Microsoft 117 * 118 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 119 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 120 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 121 * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTERS BE LIABLE FOR ANY DIRECT, 122 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 123 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 124 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 125 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 126 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 127 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 128 * SUCH DAMAGE. 129 */ 130 131 #include <sys/cdefs.h> 132 __KERNEL_RCSID(0, "$NetBSD: gemini_machdep.c,v 1.35 2023/08/10 20:02:55 andvar Exp $"); 133 134 #include "opt_arm_debug.h" 135 #include "opt_console.h" 136 #include "opt_machdep.h" 137 #include "opt_ddb.h" 138 #include "opt_kgdb.h" 139 #include "opt_md.h" 140 #include "opt_com.h" 141 #include "opt_gemini.h" 142 #include "geminiwdt.h" 143 #include "geminiipm.h" 144 145 #include <sys/param.h> 146 #include <sys/device.h> 147 #include <sys/systm.h> 148 #include <sys/kernel.h> 149 #include <sys/exec.h> 150 #include <sys/proc.h> 151 #include <sys/msgbuf.h> 152 #include <sys/reboot.h> 153 #include <sys/termios.h> 154 #include <sys/ksyms.h> 155 #include <sys/bus.h> 156 #include <sys/cpu.h> 157 #include <sys/conf.h> 158 159 #include <uvm/uvm_extern.h> 160 161 #include <dev/cons.h> 162 #include <dev/md.h> 163 164 #include <machine/db_machdep.h> 165 #include <ddb/db_sym.h> 166 #include <ddb/db_extern.h> 167 #ifdef KGDB 168 #include <sys/kgdb.h> 169 #endif 170 171 #include <arm/locore.h> 172 #include <arm/undefined.h> 173 174 #include <arm/arm32/machdep.h> 175 176 #include <machine/bootconfig.h> 177 178 #include <arm/gemini/gemini_reg.h> 179 #include <arm/gemini/gemini_var.h> 180 #include <arm/gemini/gemini_wdtvar.h> 181 #include <arm/gemini/gemini_com.h> 182 #include <arm/gemini/lpc_com.h> 183 184 #include <evbarm/gemini/gemini.h> 185 186 #if defined(VERBOSE_INIT_ARM) 187 # define GEMINI_PUTCHAR(c) gemini_putchar(c) 188 # define GEMINI_PUTHEX(n) gemini_puthex(n) 189 #else /* VERBOSE_INIT_ARM */ 190 # define GEMINI_PUTCHAR(c) 191 # define GEMINI_PUTHEX(n) 192 #endif /* VERBOSE_INIT_ARM */ 193 194 BootConfig bootconfig; /* Boot config storage */ 195 char *boot_args = NULL; 196 char *boot_file = NULL; 197 198 /* Physical address of the beginning of SDRAM. */ 199 paddr_t physical_start; 200 /* Physical address of the first byte after the end of SDRAM. */ 201 paddr_t physical_end; 202 203 /* Same things, but for the free (unused by the kernel) memory. */ 204 static paddr_t physical_freestart, physical_freeend; 205 static u_int free_pages; 206 207 /* Physical address of the message buffer. */ 208 paddr_t msgbufphys; 209 210 extern char KERNEL_BASE_phys[]; 211 extern char KERNEL_BASE_virt[]; 212 extern char etext[], __data_start[], _edata[], __bss_start[], __bss_end__[]; 213 extern char _end[]; 214 215 #define KERNEL_PT_SYS 0 /* Page table for mapping proc0 zero page */ 216 #define KERNEL_PT_KERNEL 1 /* Page table for mapping kernel */ 217 #define KERNEL_PT_KERNEL_NUM 4 218 #define KERNEL_PT_VMDATA (KERNEL_PT_KERNEL+KERNEL_PT_KERNEL_NUM) 219 /* Page tables for mapping kernel VM */ 220 #define KERNEL_PT_VMDATA_NUM 4 /* start with 16MB of KVM */ 221 #define NUM_KERNEL_PTS (KERNEL_PT_VMDATA + KERNEL_PT_VMDATA_NUM) 222 223 pv_addr_t kernel_pt_table[NUM_KERNEL_PTS]; 224 225 226 #if (NGEMINIIPM > 0) 227 pv_addr_t ipmq_pt; /* L2 Page table for mapping IPM queues */ 228 #if defined(DEBUG) || 1 229 unsigned long gemini_ipmq_pbase = GEMINI_IPMQ_PBASE; 230 unsigned long gemini_ipmq_vbase = GEMINI_IPMQ_VBASE; 231 #endif /* DEBUG */ 232 #endif /* NGEMINIIPM > 0 */ 233 234 235 /* 236 * Macros to translate between physical and virtual for a subset of the 237 * kernel address space. *Not* for general use. 238 */ 239 #define KERNEL_BASE_PHYS ((paddr_t)&KERNEL_BASE_phys) 240 241 u_long kern_vtopdiff; 242 243 /* Prototypes */ 244 245 void gemini_intr_init(bus_space_tag_t); 246 void consinit(void); 247 #ifdef KGDB 248 static void kgdb_port_init(void); 249 #endif 250 251 static void setup_real_page_tables(void); 252 static void init_clocks(void); 253 254 bs_protos(bs_notimpl); 255 256 #include "com.h" 257 #if NCOM > 0 258 #include <dev/ic/comreg.h> 259 #include <dev/ic/comvar.h> 260 #endif 261 262 263 static void gemini_global_reset(void) __attribute__ ((noreturn)); 264 static void gemini_cpu1_start(void); 265 static void gemini_memchk(void); 266 267 static void 268 gemini_global_reset(void) 269 { 270 #if defined(GEMINI_MASTER) || defined(GEMINI_SINGLE) 271 volatile uint32_t *rp; 272 uint32_t r; 273 274 rp = (volatile uint32_t *) 275 (GEMINI_GLOBAL_VBASE + GEMINI_GLOBAL_RESET_CTL); 276 r = *rp; 277 r |= GLOBAL_RESET_GLOBAL; 278 *rp = r; 279 #endif 280 for(;;); 281 /* NOTREACHED */ 282 } 283 284 static void 285 gemini_cpu1_start(void) 286 { 287 #ifdef GEMINI_MASTER 288 volatile uint32_t *rp; 289 uint32_t r; 290 291 rp = (volatile uint32_t *) 292 (GEMINI_GLOBAL_VBASE + GEMINI_GLOBAL_RESET_CTL); 293 r = *rp; 294 r &= ~GLOBAL_RESET_CPU1; 295 *rp = r; 296 #endif 297 } 298 299 static void 300 gemini_memchk(void) 301 { 302 volatile uint32_t *rp; 303 uint32_t r; 304 uint32_t base; 305 uint32_t size; 306 307 rp = (volatile uint32_t *) 308 (GEMINI_DRAMC_VBASE + GEMINI_DRAMC_RMCR); 309 r = *rp; 310 base = (r & DRAMC_RMCR_RMBAR) >> DRAMC_RMCR_RMBAR_SHFT; 311 size = (r & DRAMC_RMCR_RMSZR) >> DRAMC_RMCR_RMSZR_SHFT; 312 #if defined(GEMINI_SINGLE) 313 if (r != 0) 314 panic("%s: RMCR %#x, MEMSIZE %d mismatch\n", 315 __FUNCTION__, r, MEMSIZE); 316 #elif defined(GEMINI_MASTER) 317 if (base != MEMSIZE) 318 panic("%s: RMCR %#x, MEMSIZE %d mismatch\n", 319 __FUNCTION__, r, MEMSIZE); 320 #elif defined(GEMINI_SLAVE) 321 if (size != MEMSIZE) 322 panic("%s: RMCR %#x, MEMSIZE %d mismatch\n", 323 __FUNCTION__, r, MEMSIZE); 324 #endif 325 #if defined(VERBOSE_INIT_ARM) || 1 326 printf("DRAM Remap: base=%dMB, size=%dMB\n", base, size); 327 #endif 328 } 329 330 /* 331 * void cpu_reboot(int howto, char *bootstr) 332 * 333 * Reboots the system 334 * 335 * Deal with any syncing, unmounting, dumping and shutdown hooks, 336 * then reset the CPU. 337 */ 338 void 339 cpu_reboot(int howto, char *bootstr) 340 { 341 extern struct geminitmr_softc *ref_sc; 342 343 #ifdef DIAGNOSTIC 344 /* info */ 345 printf("boot: howto=%08x curproc=%p\n", howto, curproc); 346 #endif 347 348 /* 349 * If we are still cold then hit the air brakes 350 * and crash to earth fast 351 */ 352 if (cold) { 353 doshutdownhooks(); 354 pmf_system_shutdown(boothowto); 355 printf("The operating system has halted.\n"); 356 printf("Please press any key to reboot.\n\n"); 357 cngetc(); 358 printf("rebooting...\n"); 359 if (ref_sc != NULL) 360 delay(2000); /* cnflush(); */ 361 gemini_global_reset(); 362 /*NOTREACHED*/ 363 } 364 365 /* Disable console buffering */ 366 cnpollc(1); 367 368 /* 369 * If RB_NOSYNC was not specified sync the discs. 370 * Note: Unless cold is set to 1 here, syslogd will die during the 371 * unmount. It looks like syslogd is getting woken up only to find 372 * that it cannot page part of the binary in as the filesystem has 373 * been unmounted. 374 */ 375 if (!(howto & RB_NOSYNC)) 376 bootsync(); 377 378 /* Say NO to interrupts */ 379 splhigh(); 380 381 /* Do a dump if requested. */ 382 if ((howto & (RB_DUMP | RB_HALT)) == RB_DUMP) 383 dumpsys(); 384 385 /* Run any shutdown hooks */ 386 doshutdownhooks(); 387 388 pmf_system_shutdown(boothowto); 389 390 /* Make sure IRQ's are disabled */ 391 IRQdisable; 392 393 if (howto & RB_HALT) { 394 printf("The operating system has halted.\n"); 395 printf("Please press any key to reboot.\n\n"); 396 cngetc(); 397 } 398 399 printf("rebooting...\n"); 400 if (ref_sc != NULL) 401 delay(2000); /* cnflush(); */ 402 gemini_global_reset(); 403 /*NOTREACHED*/ 404 } 405 406 /* 407 * Static device mappings. These peripheral registers are mapped at 408 * fixed virtual addresses very early in initarm() so that we can use 409 * them while booting the kernel, and stay at the same address 410 * throughout whole kernel's life time. 411 * 412 * We use this table twice; once with bootstrap page table, and once 413 * with kernel's page table which we build up in initarm(). 414 * 415 * Since we map these registers into the bootstrap page table using 416 * pmap_devmap_bootstrap() which calls pmap_map_chunk(), we map 417 * registers segment-aligned and segment-rounded in order to avoid 418 * using the 2nd page tables. 419 */ 420 421 static const struct pmap_devmap devmap[] = { 422 /* Global regs */ 423 DEVMAP_ENTRY_FLAGS(GEMINI_GLOBAL_VBASE, 424 GEMINI_GLOBAL_BASE, 425 L1_S_SIZE, 426 PMAP_NOCACHE), 427 428 /* Watchdog */ 429 DEVMAP_ENTRY_FLAGS(GEMINI_WATCHDOG_VBASE, 430 GEMINI_WATCHDOG_BASE, 431 L1_S_SIZE, 432 PMAP_NOCACHE), 433 434 DEVMAP_ENTRY_FLAGS(GEMINI_WATCHDOG_VBASE, 435 GEMINI_WATCHDOG_BASE, 436 L1_S_SIZE, 437 PMAP_NOCACHE), 438 439 /* UART */ 440 DEVMAP_ENTRY_FLAGS(GEMINI_UART_VBASE, 441 GEMINI_UART_BASE, 442 L1_S_SIZE, 443 PMAP_NOCACHE), 444 445 /* LPCHC */ 446 DEVMAP_ENTRY_FLAGS(GEMINI_LPCHC_VBASE, 447 GEMINI_LPCHC_BASE, 448 L1_S_SIZE, 449 PMAP_NOCACHE), 450 451 /* LPCIO */ 452 DEVMAP_ENTRY_FLAGS(GEMINI_LPCIO_VBASE, 453 GEMINI_LPCIO_BASE, 454 L1_S_SIZE, 455 PMAP_NOCACHE), 456 457 /* Timers */ 458 DEVMAP_ENTRY_FLAGS(GEMINI_TIMER_VBASE, 459 GEMINI_TIMER_BASE, 460 L1_S_SIZE, 461 PMAP_NOCACHE), 462 463 /* DRAM Controller */ 464 DEVMAP_ENTRY_FLAGS(GEMINI_DRAMC_VBASE, 465 GEMINI_DRAMC_BASE, 466 L1_S_SIZE, 467 PMAP_NOCACHE), 468 469 #if defined(MEMORY_DISK_DYNAMIC) 470 /* Ramdisk */ 471 DEVMAP_ENTRY_FLAGS(GEMINI_RAMDISK_VBASE, 472 GEMINI_RAMDISK_PBASE, 473 L1_S_SIZE, 474 PMAP_NOCACHE), 475 #endif 476 477 /* list terminator */ 478 DEVMAP_ENTRY_END 479 }; 480 481 #ifdef DDB 482 static void gemini_db_trap(int where) 483 { 484 #if NGEMINIWDT > 0 485 static int oldwatchdogstate; 486 487 if (where) { 488 oldwatchdogstate = geminiwdt_enable(0); 489 } else { 490 geminiwdt_enable(oldwatchdogstate); 491 } 492 #endif 493 } 494 #endif 495 496 #if defined(VERBOSE_INIT_ARM) || 1 497 void gemini_putchar(char c); 498 void 499 gemini_putchar(char c) 500 { 501 unsigned char *com0addr = (unsigned char *)GEMINI_UART_VBASE; 502 int timo = 150000; 503 504 while ((com0addr[COM_REG_LSR * 4] & LSR_TXRDY) == 0) 505 if (--timo == 0) 506 break; 507 508 com0addr[COM_REG_TXDATA] = c; 509 510 while ((com0addr[COM_REG_LSR * 4] & LSR_TSRE) == 0) 511 if (--timo == 0) 512 break; 513 } 514 515 void gemini_puthex(unsigned int); 516 void 517 gemini_puthex(unsigned int val) 518 { 519 char hexc[] = "0123456789abcdef"; 520 521 gemini_putchar('0'); 522 gemini_putchar('x'); 523 gemini_putchar(hexc[(val >> 28) & 0xf]); 524 gemini_putchar(hexc[(val >> 24) & 0xf]); 525 gemini_putchar(hexc[(val >> 20) & 0xf]); 526 gemini_putchar(hexc[(val >> 16) & 0xf]); 527 gemini_putchar(hexc[(val >> 12) & 0xf]); 528 gemini_putchar(hexc[(val >> 8) & 0xf]); 529 gemini_putchar(hexc[(val >> 4) & 0xf]); 530 gemini_putchar(hexc[(val >> 0) & 0xf]); 531 } 532 #endif /* VERBOSE_INIT_ARM */ 533 534 /* 535 * vaddr_t initarm(...) 536 * 537 * Initial entry point on startup. This gets called before main() is 538 * entered. 539 * It should be responsible for setting up everything that must be 540 * in place when main is called. 541 * This includes 542 * Taking a copy of the boot configuration structure. 543 * Initialising the physical console so characters can be printed. 544 * Setting up page tables for the kernel 545 * Relocating the kernel to the bottom of physical memory 546 */ 547 vaddr_t 548 initarm(void *arg) 549 { 550 GEMINI_PUTCHAR('0'); 551 552 /* 553 * start cpu#1 now 554 */ 555 gemini_cpu1_start(); 556 557 /* 558 * When we enter here, we are using a temporary first level 559 * translation table with section entries in it to cover the OBIO 560 * peripherals and SDRAM. The temporary first level translation table 561 * is at the end of SDRAM. 562 */ 563 564 /* Heads up ... Setup the CPU / MMU / TLB functions. */ 565 GEMINI_PUTCHAR('1'); 566 if (set_cpufuncs()) 567 panic("cpu not recognized!"); 568 569 GEMINI_PUTCHAR('2'); 570 init_clocks(); 571 GEMINI_PUTCHAR('3'); 572 573 /* The console is going to try to map things. Give pmap a devmap. */ 574 pmap_devmap_register(devmap); 575 GEMINI_PUTCHAR('4'); 576 consinit(); 577 GEMINI_PUTCHAR('5'); 578 #ifdef KGDB 579 kgdb_port_init(); 580 #endif 581 582 /* Talk to the user */ 583 printf("\nNetBSD/evbarm (gemini) booting ...\n"); 584 585 #ifdef BOOT_ARGS 586 char mi_bootargs[] = BOOT_ARGS; 587 parse_mi_bootargs(mi_bootargs); 588 #endif 589 590 #ifdef VERBOSE_INIT_ARM 591 printf("initarm: Configuring system ...\n"); 592 #endif 593 594 /* 595 * Set up the variables that define the availability of physical 596 * memory. 597 */ 598 gemini_memchk(); 599 physical_start = GEMINI_DRAM_BASE; 600 #define MEMSIZE_BYTES (MEMSIZE * 1024 * 1024) 601 physical_end = (physical_start & ~(0x400000-1)) + MEMSIZE_BYTES; 602 physmem = (physical_end - physical_start) / PAGE_SIZE; 603 604 /* Fake bootconfig structure for the benefit of pmap.c. */ 605 bootconfig.dramblocks = 1; 606 bootconfig.dram[0].address = physical_start; 607 bootconfig.dram[0].pages = physmem; 608 609 kern_vtopdiff = KERNEL_BASE - GEMINI_DRAM_BASE; 610 611 /* 612 * Our kernel is at the beginning of memory, so set our free space to 613 * all the memory after the kernel. 614 */ 615 physical_freestart = KERN_VTOPHYS(round_page((vaddr_t) _end)); 616 physical_freeend = physical_end; 617 free_pages = (physical_freeend - physical_freestart) / PAGE_SIZE; 618 619 /* 620 * This is going to do all the hard work of setting up the first and 621 * and second level page tables. Pages of memory will be allocated 622 * and mapped for other structures that are required for system 623 * operation. When it returns, physical_freestart and free_pages will 624 * have been updated to reflect the allocations that were made. In 625 * addition, kernel_l1pt, kernel_pt_table[], systempage, irqstack, 626 * abtstack, undstack, kernelstack, msgbufphys will be set to point to 627 * the memory that was allocated for them. 628 */ 629 setup_real_page_tables(); 630 631 /* 632 * Moved from cpu_startup() as data_abort_handler() references 633 * this during uvm init. 634 */ 635 uvm_lwp_setuarea(&lwp0, kernelstack.pv_va); 636 637 #ifdef VERBOSE_INIT_ARM 638 printf("bootstrap done.\n"); 639 #endif 640 641 arm32_vector_init(ARM_VECTORS_HIGH, ARM_VEC_ALL); 642 643 /* 644 * Pages were allocated during the secondary bootstrap for the 645 * stacks for different CPU modes. 646 * We must now set the r13 registers in the different CPU modes to 647 * point to these stacks. 648 * Since the ARM stacks use STMFD etc. we must set r13 to the top end 649 * of the stack memory. 650 */ 651 #ifdef VERBOSE_INIT_ARM 652 printf("init subsystems: stacks "); 653 #endif 654 655 set_stackptr(PSR_FIQ32_MODE, fiqstack.pv_va + FIQ_STACK_SIZE * PAGE_SIZE); 656 set_stackptr(PSR_IRQ32_MODE, irqstack.pv_va + IRQ_STACK_SIZE * PAGE_SIZE); 657 set_stackptr(PSR_ABT32_MODE, abtstack.pv_va + ABT_STACK_SIZE * PAGE_SIZE); 658 set_stackptr(PSR_UND32_MODE, undstack.pv_va + UND_STACK_SIZE * PAGE_SIZE); 659 660 /* 661 * Well we should set a data abort handler. 662 * Once things get going this will change as we will need a proper 663 * handler. 664 * Until then we will use a handler that just panics but tells us 665 * why. 666 * Initialisation of the vectors will just panic on a data abort. 667 * This just fills in a slightly better one. 668 */ 669 #ifdef VERBOSE_INIT_ARM 670 printf("vectors "); 671 #endif 672 data_abort_handler_address = (u_int)data_abort_handler; 673 prefetch_abort_handler_address = (u_int)prefetch_abort_handler; 674 undefined_handler_address = (u_int)undefinedinstruction_bounce; 675 676 /* Initialise the undefined instruction handlers */ 677 #ifdef VERBOSE_INIT_ARM 678 printf("undefined "); 679 #endif 680 undefined_init(); 681 682 /* Load memory into UVM. */ 683 #ifdef VERBOSE_INIT_ARM 684 printf("page "); 685 #endif 686 uvm_md_init(); 687 688 #if (GEMINI_RAM_RESV_PBASE != 0) 689 uvm_page_physload(atop(physical_freestart), atop(GEMINI_RAM_RESV_PBASE), 690 atop(physical_freestart), atop(GEMINI_RAM_RESV_PBASE), 691 VM_FREELIST_DEFAULT); 692 uvm_page_physload(atop(GEMINI_RAM_RESV_PEND), atop(physical_freeend), 693 atop(GEMINI_RAM_RESV_PEND), atop(physical_freeend), 694 VM_FREELIST_DEFAULT); 695 #else 696 uvm_page_physload(atop(physical_freestart), atop(physical_freeend), 697 atop(physical_freestart), atop(physical_freeend), 698 VM_FREELIST_DEFAULT); 699 #endif 700 uvm_page_physload(atop(GEMINI_DRAM_BASE), atop(KERNEL_BASE_phys), 701 atop(GEMINI_DRAM_BASE), atop(KERNEL_BASE_phys), 702 VM_FREELIST_DEFAULT); 703 704 /* Boot strap pmap telling it where managed kernel virtual memory is */ 705 #ifdef VERBOSE_INIT_ARM 706 printf("pmap "); 707 #endif 708 pmap_bootstrap(KERNEL_VM_BASE, KERNEL_VM_BASE + KERNEL_VM_SIZE); 709 710 #ifdef VERBOSE_INIT_ARM 711 printf("done.\n"); 712 #endif 713 714 #if defined(MEMORY_DISK_DYNAMIC) 715 md_root_setconf((char *)GEMINI_RAMDISK_VBASE, GEMINI_RAMDISK_SIZE); 716 #endif 717 718 #ifdef KGDB 719 if (boothowto & RB_KDB) { 720 kgdb_debug_init = 1; 721 kgdb_connect(1); 722 } 723 #endif 724 725 #ifdef DDB 726 db_trap_callback = gemini_db_trap; 727 db_machine_init(); 728 729 /* Firmware doesn't load symbols. */ 730 ddb_init(0, NULL, NULL); 731 732 if (boothowto & RB_KDB) 733 Debugger(); 734 #endif 735 printf("initarm done.\n"); 736 737 /* We return the new stack pointer address */ 738 return kernelstack.pv_va + USPACE_SVC_STACK_TOP; 739 } 740 741 static void 742 init_clocks(void) 743 { 744 } 745 746 #ifndef CONSADDR 747 #error Specify the address of the console UART with the CONSADDR option. 748 #endif 749 #ifndef CONSPEED 750 #define CONSPEED 19200 751 #endif 752 #ifndef CONMODE 753 #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */ 754 #endif 755 756 static const bus_addr_t consaddr = CONSADDR; 757 static const int conspeed = CONSPEED; 758 static const int conmode = CONMODE; 759 760 #if CONSADDR==0x42000000 761 /* 762 * console initialization for obio com console 763 */ 764 void 765 consinit(void) 766 { 767 static int consinit_called = 0; 768 769 if (consinit_called != 0) 770 return; 771 consinit_called = 1; 772 773 if (comcnattach(&gemini_a4x_bs_tag, consaddr, conspeed, 774 GEMINI_COM_FREQ, COM_TYPE_16550_NOERS, conmode)) 775 panic("Serial console can not be initialized."); 776 } 777 778 #elif CONSADDR==0x478003f8 779 # include <arm/gemini/gemini_lpcvar.h> 780 /* 781 * console initialization for lpc com console 782 */ 783 void 784 consinit(void) 785 { 786 static int consinit_called = 0; 787 bus_space_tag_t iot = &gemini_bs_tag; 788 bus_space_handle_t lpchc_ioh; 789 bus_space_handle_t lpcio_ioh; 790 bus_size_t sz = L1_S_SIZE; 791 gemini_lpc_softc_t lpcsoftc; 792 gemini_lpc_bus_ops_t *ops; 793 void *lpctag = &lpcsoftc; 794 uint32_t r; 795 extern gemini_lpc_bus_ops_t gemini_lpc_bus_ops; 796 797 ops = &gemini_lpc_bus_ops; 798 799 if (consinit_called != 0) 800 return; 801 consinit_called = 1; 802 803 if (bus_space_map(iot, GEMINI_LPCHC_BASE, sz, 0, &lpchc_ioh)) 804 panic("consinit: LPCHC can not be mapped."); 805 806 if (bus_space_map(iot, GEMINI_LPCIO_BASE, sz, 0, &lpcio_ioh)) 807 panic("consinit: LPCIO can not be mapped."); 808 809 /* enable the LPC bus */ 810 r = bus_space_read_4(iot, lpchc_ioh, GEMINI_LPCHC_CSR); 811 r |= LPCHC_CSR_BEN; 812 bus_space_write_4(iot, lpchc_ioh, GEMINI_LPCHC_CSR, r); 813 814 memset(&lpcsoftc, 0, sizeof(lpcsoftc)); 815 lpcsoftc.sc_iot = iot; 816 lpcsoftc.sc_ioh = lpcio_ioh; 817 818 /* activate Serial Port 1 */ 819 (*ops->lpc_pnp_enter)(lpctag); 820 (*ops->lpc_pnp_write)(lpctag, 1, 0x30, 0x01); 821 (*ops->lpc_pnp_exit)(lpctag); 822 823 if (comcnattach(iot, consaddr, conspeed, 824 IT8712F_COM_FREQ, COM_TYPE_NORMAL, conmode)) { 825 panic("Serial console can not be initialized."); 826 } 827 828 bus_space_unmap(iot, lpcio_ioh, sz); 829 bus_space_unmap(iot, lpchc_ioh, sz); 830 } 831 #else 832 # error unknown console 833 #endif 834 835 #ifdef KGDB 836 #ifndef KGDB_DEVADDR 837 #error Specify the address of the kgdb UART with the KGDB_DEVADDR option. 838 #endif 839 #ifndef KGDB_DEVRATE 840 #define KGDB_DEVRATE 19200 841 #endif 842 843 #ifndef KGDB_DEVMODE 844 #define KGDB_DEVMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */ 845 #endif 846 static const vaddr_t comkgdbaddr = KGDB_DEVADDR; 847 static const int comkgdbspeed = KGDB_DEVRATE; 848 static const int comkgdbmode = KGDB_DEVMODE; 849 850 void 851 static kgdb_port_init(void) 852 { 853 static int kgdbsinit_called = 0; 854 855 if (kgdbsinit_called != 0) 856 return; 857 858 kgdbsinit_called = 1; 859 860 bus_space_handle_t bh; 861 if (bus_space_map(&gemini_a4x_bs_tag, comkgdbaddr, 862 GEMINI_UART_SIZE, 0, &bh)) 863 panic("kgdb port can not be mapped."); 864 865 if (com_kgdb_attach(&gemini_a4x_bs_tag, comkgdbaddr, comkgdbspeed, 866 GEMINI_UART_SIZE, COM_TYPE_16550_NOERS, comkgdbmode)) 867 panic("KGDB uart can not be initialized."); 868 869 bus_space_unmap(&gemini_a4x_bs_tag, bh, GEMINI_UART_SIZE); 870 } 871 #endif 872 873 static void 874 setup_real_page_tables(void) 875 { 876 /* 877 * We need to allocate some fixed page tables to get the kernel going. 878 * 879 * We are going to allocate our bootstrap pages from the beginning of 880 * the free space that we just calculated. We allocate one page 881 * directory and a number of page tables and store the physical 882 * addresses in the kernel_pt_table array. 883 * 884 * The kernel page directory must be on a 16K boundary. The page 885 * tables must be on 4K boundaries. What we do is allocate the 886 * page directory on the first 16K boundary that we encounter, and 887 * the page tables on 4K boundaries otherwise. Since we allocate 888 * at least 3 L2 page tables, we are guaranteed to encounter at 889 * least one 16K aligned region. 890 */ 891 892 #ifdef VERBOSE_INIT_ARM 893 printf("Allocating page tables\n"); 894 #endif 895 896 /* 897 * Define a macro to simplify memory allocation. As we allocate the 898 * memory, make sure that we don't walk over our temporary first level 899 * translation table. 900 */ 901 #define valloc_pages(var, np) \ 902 (var).pv_pa = physical_freestart; \ 903 physical_freestart += ((np) * PAGE_SIZE); \ 904 if (physical_freestart > (physical_freeend - L1_TABLE_SIZE)) \ 905 panic("initarm: out of memory"); \ 906 free_pages -= (np); \ 907 (var).pv_va = KERN_PHYSTOV((var).pv_pa); \ 908 memset((char *)(var).pv_va, 0, ((np) * PAGE_SIZE)); 909 910 int loop, pt_index; 911 912 pt_index = 0; 913 kernel_l1pt.pv_pa = 0; 914 kernel_l1pt.pv_va = 0; 915 #ifdef VERBOSE_INIT_ARM 916 printf("%s: physical_freestart %#lx\n", __func__, physical_freestart); 917 #endif 918 for (loop = 0; loop <= NUM_KERNEL_PTS; ++loop) { 919 /* Are we 16KB aligned for an L1 ? */ 920 if ((physical_freestart & (L1_TABLE_SIZE - 1)) == 0 921 && kernel_l1pt.pv_pa == 0) { 922 valloc_pages(kernel_l1pt, L1_TABLE_SIZE / PAGE_SIZE); 923 } else { 924 valloc_pages(kernel_pt_table[pt_index], 925 L2_TABLE_SIZE / PAGE_SIZE); 926 ++pt_index; 927 } 928 } 929 930 #if (NGEMINIIPM > 0) 931 valloc_pages(ipmq_pt, L2_TABLE_SIZE / PAGE_SIZE); 932 #endif 933 934 #ifdef VERBOSE_INIT_ARM 935 pt_index=0; 936 printf("%s: kernel_l1pt: %#lx:%#lx\n", 937 __func__, kernel_l1pt.pv_va, kernel_l1pt.pv_pa); 938 printf("%s: kernel_pt_table:\n", __func__); 939 for (loop = 0; loop < NUM_KERNEL_PTS; ++loop) { 940 printf("\t%#lx:%#lx\n", kernel_pt_table[pt_index].pv_va, 941 kernel_pt_table[pt_index].pv_pa); 942 ++pt_index; 943 } 944 #if (NGEMINIIPM > 0) 945 printf("%s: ipmq_pt:\n", __func__); 946 printf("\t%#lx:%#lx\n", ipmq_pt.pv_va, ipmq_pt.pv_pa); 947 #endif 948 #endif 949 950 /* This should never be able to happen but better confirm that. */ 951 if (!kernel_l1pt.pv_pa || (kernel_l1pt.pv_pa & (L1_TABLE_SIZE-1)) != 0) 952 panic("initarm: Failed to align the kernel page directory"); 953 954 /* 955 * Allocate a page for the system page mapped to V0x00000000 956 * This page will just contain the system vectors and can be 957 * shared by all processes. 958 */ 959 valloc_pages(systempage, 1); 960 systempage.pv_va = ARM_VECTORS_HIGH; 961 962 /* Allocate stacks for all modes */ 963 valloc_pages(fiqstack, FIQ_STACK_SIZE); 964 valloc_pages(irqstack, IRQ_STACK_SIZE); 965 valloc_pages(abtstack, ABT_STACK_SIZE); 966 valloc_pages(undstack, UND_STACK_SIZE); 967 valloc_pages(kernelstack, UPAGES); 968 969 /* Allocate the message buffer. */ 970 pv_addr_t msgbuf; 971 int msgbuf_pgs = round_page(MSGBUFSIZE) / PAGE_SIZE; 972 valloc_pages(msgbuf, msgbuf_pgs); 973 msgbufphys = msgbuf.pv_pa; 974 975 /* 976 * Ok we have allocated physical pages for the primary kernel 977 * page tables 978 */ 979 980 #ifdef VERBOSE_INIT_ARM 981 printf("Creating L1 page table at 0x%08lx\n", kernel_l1pt.pv_pa); 982 #endif 983 984 /* 985 * Now we start construction of the L1 page table 986 * We start by mapping the L2 page tables into the L1. 987 * This means that we can replace L1 mappings later on if necessary 988 */ 989 vaddr_t l1_va = kernel_l1pt.pv_va; 990 paddr_t l1_pa = kernel_l1pt.pv_pa; 991 992 /* Map the L2 pages tables in the L1 page table */ 993 pmap_link_l2pt(l1_va, ARM_VECTORS_HIGH & ~(0x00400000 - 1), 994 &kernel_pt_table[KERNEL_PT_SYS]); 995 for (loop = 0; loop < KERNEL_PT_KERNEL_NUM; loop++) 996 pmap_link_l2pt(l1_va, KERNEL_BASE + loop * 0x00400000, 997 &kernel_pt_table[KERNEL_PT_KERNEL + loop]); 998 for (loop = 0; loop < KERNEL_PT_VMDATA_NUM; loop++) 999 pmap_link_l2pt(l1_va, KERNEL_VM_BASE + loop * 0x00400000, 1000 &kernel_pt_table[KERNEL_PT_VMDATA + loop]); 1001 1002 /* update the top of the kernel VM */ 1003 pmap_curmaxkvaddr = 1004 KERNEL_VM_BASE + (KERNEL_PT_VMDATA_NUM * 0x00400000); 1005 1006 #if (NGEMINIIPM > 0) 1007 printf("%s:%d: pmap_link_l2pt ipmq_pt\n", __FUNCTION__, __LINE__); 1008 pmap_link_l2pt(l1_va, GEMINI_IPMQ_VBASE, &ipmq_pt); 1009 #endif 1010 1011 #ifdef VERBOSE_INIT_ARM 1012 printf("Mapping kernel\n"); 1013 #endif 1014 1015 /* Now we fill in the L2 pagetable for the kernel static code/data */ 1016 #define round_L_page(x) (((x) + L2_L_OFFSET) & L2_L_FRAME) 1017 size_t textsize = round_L_page(etext - KERNEL_BASE_virt); 1018 size_t totalsize = round_L_page(_end - KERNEL_BASE_virt); 1019 /* offset of kernel in RAM */ 1020 u_int offset = (u_int)KERNEL_BASE_virt - KERNEL_BASE; 1021 1022 #ifdef DDB 1023 /* Map text section read-write. */ 1024 offset += pmap_map_chunk(l1_va, 1025 (vaddr_t)KERNEL_BASE + offset, 1026 physical_start + offset, textsize, 1027 VM_PROT_READ|VM_PROT_WRITE|VM_PROT_EXECUTE, 1028 PTE_CACHE); 1029 #else 1030 /* Map text section read-only. */ 1031 offset += pmap_map_chunk(l1_va, 1032 (vaddr_t)KERNEL_BASE + offset, 1033 physical_start + offset, textsize, 1034 VM_PROT_READ|VM_PROT_EXECUTE, PTE_CACHE); 1035 #endif 1036 /* Map data and bss sections read-write. */ 1037 offset += pmap_map_chunk(l1_va, 1038 (vaddr_t)KERNEL_BASE + offset, 1039 physical_start + offset, totalsize - textsize, 1040 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 1041 1042 #ifdef VERBOSE_INIT_ARM 1043 printf("Constructing L2 page tables\n"); 1044 #endif 1045 1046 /* Map the stack pages */ 1047 pmap_map_chunk(l1_va, fiqstack.pv_va, fiqstack.pv_pa, 1048 FIQ_STACK_SIZE * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 1049 pmap_map_chunk(l1_va, irqstack.pv_va, irqstack.pv_pa, 1050 IRQ_STACK_SIZE * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 1051 pmap_map_chunk(l1_va, abtstack.pv_va, abtstack.pv_pa, 1052 ABT_STACK_SIZE * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 1053 pmap_map_chunk(l1_va, undstack.pv_va, undstack.pv_pa, 1054 UND_STACK_SIZE * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 1055 pmap_map_chunk(l1_va, kernelstack.pv_va, kernelstack.pv_pa, 1056 UPAGES * PAGE_SIZE, VM_PROT_READ | VM_PROT_WRITE, PTE_CACHE); 1057 1058 pmap_map_chunk(l1_va, kernel_l1pt.pv_va, kernel_l1pt.pv_pa, 1059 L1_TABLE_SIZE, VM_PROT_READ | VM_PROT_WRITE, PTE_PAGETABLE); 1060 1061 for (loop = 0; loop < NUM_KERNEL_PTS; ++loop) { 1062 pmap_map_chunk(l1_va, kernel_pt_table[loop].pv_va, 1063 kernel_pt_table[loop].pv_pa, L2_TABLE_SIZE, 1064 VM_PROT_READ|VM_PROT_WRITE, PTE_PAGETABLE); 1065 } 1066 1067 /* Map the vector page. */ 1068 pmap_map_entry(l1_va, ARM_VECTORS_HIGH, systempage.pv_pa, 1069 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 1070 1071 #if (NGEMINIIPM > 0) 1072 /* Map the IPM queue l2pt */ 1073 pmap_map_chunk(l1_va, ipmq_pt.pv_va, ipmq_pt.pv_pa, 1074 L2_TABLE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_PAGETABLE); 1075 1076 /* Map the IPM queue pages */ 1077 pmap_map_chunk(l1_va, GEMINI_IPMQ_VBASE, GEMINI_IPMQ_PBASE, 1078 GEMINI_IPMQ_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_NOCACHE); 1079 1080 #ifdef GEMINI_SLAVE 1081 /* 1082 * Map all memory, including that owned by other core 1083 * take into account the RAM remap, so view in this region 1084 * is consistent with MASTER 1085 */ 1086 pmap_map_chunk(l1_va, 1087 GEMINI_ALLMEM_VBASE, 1088 GEMINI_ALLMEM_PBASE + ((GEMINI_ALLMEM_SIZE - MEMSIZE) * 1024 * 1024), 1089 (GEMINI_ALLMEM_SIZE - MEMSIZE) * 1024 * 1024, 1090 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 1091 pmap_map_chunk(l1_va, 1092 GEMINI_ALLMEM_VBASE + GEMINI_BUSBASE * 1024 * 1024, 1093 GEMINI_ALLMEM_PBASE, 1094 (MEMSIZE * 1024 * 1024), 1095 VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 1096 #else 1097 /* Map all memory, including that owned by other core */ 1098 pmap_map_chunk(l1_va, GEMINI_ALLMEM_VBASE, GEMINI_ALLMEM_PBASE, 1099 GEMINI_ALLMEM_SIZE * 1024 * 1024, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); 1100 #endif /* GEMINI_SLAVE */ 1101 #endif /* NGEMINIIPM */ 1102 1103 /* 1104 * Map integrated peripherals at same address in first level page 1105 * table so that we can continue to use console. 1106 */ 1107 pmap_devmap_bootstrap(l1_va, devmap); 1108 1109 1110 #ifdef VERBOSE_INIT_ARM 1111 /* Tell the user about where all the bits and pieces live. */ 1112 printf("%22s Physical Virtual Num\n", " "); 1113 printf("%22s Starting Ending Starting Ending Pages\n", " "); 1114 1115 static const char mem_fmt[] = 1116 "%20s: 0x%08lx 0x%08lx 0x%08lx 0x%08lx %d\n"; 1117 static const char mem_fmt_nov[] = 1118 "%20s: 0x%08lx 0x%08lx %d\n"; 1119 1120 printf(mem_fmt, "SDRAM", physical_start, physical_end-1, 1121 KERN_PHYSTOV(physical_start), KERN_PHYSTOV(physical_end-1), 1122 (int)physmem); 1123 printf(mem_fmt, "text section", 1124 KERN_VTOPHYS((vaddr_t)KERNEL_BASE_virt), KERN_VTOPHYS((vaddr_t)etext-1), 1125 (vaddr_t)KERNEL_BASE_virt, (vaddr_t)etext-1, 1126 (int)(textsize / PAGE_SIZE)); 1127 printf(mem_fmt, "data section", 1128 KERN_VTOPHYS((vaddr_t)__data_start), KERN_VTOPHYS((vaddr_t)_edata), 1129 (vaddr_t)__data_start, (vaddr_t)_edata, 1130 (int)((round_page((vaddr_t)_edata) 1131 - trunc_page((vaddr_t)__data_start)) / PAGE_SIZE)); 1132 printf(mem_fmt, "bss section", 1133 KERN_VTOPHYS((vaddr_t)__bss_start), KERN_VTOPHYS((vaddr_t)__bss_end__), 1134 (vaddr_t)__bss_start, (vaddr_t)__bss_end__, 1135 (int)((round_page((vaddr_t)__bss_end__) 1136 - trunc_page((vaddr_t)__bss_start)) / PAGE_SIZE)); 1137 printf(mem_fmt, "L1 page directory", 1138 kernel_l1pt.pv_pa, kernel_l1pt.pv_pa + L1_TABLE_SIZE - 1, 1139 kernel_l1pt.pv_va, kernel_l1pt.pv_va + L1_TABLE_SIZE - 1, 1140 L1_TABLE_SIZE / PAGE_SIZE); 1141 printf(mem_fmt, "Exception Vectors", 1142 systempage.pv_pa, systempage.pv_pa + PAGE_SIZE - 1, 1143 (vaddr_t)ARM_VECTORS_HIGH, (vaddr_t)ARM_VECTORS_HIGH + PAGE_SIZE - 1, 1144 1); 1145 printf(mem_fmt, "FIQ stack", 1146 fiqstack.pv_pa, fiqstack.pv_pa + (FIQ_STACK_SIZE * PAGE_SIZE) - 1, 1147 fiqstack.pv_va, fiqstack.pv_va + (FIQ_STACK_SIZE * PAGE_SIZE) - 1, 1148 FIQ_STACK_SIZE); 1149 printf(mem_fmt, "IRQ stack", 1150 irqstack.pv_pa, irqstack.pv_pa + (IRQ_STACK_SIZE * PAGE_SIZE) - 1, 1151 irqstack.pv_va, irqstack.pv_va + (IRQ_STACK_SIZE * PAGE_SIZE) - 1, 1152 IRQ_STACK_SIZE); 1153 printf(mem_fmt, "ABT stack", 1154 abtstack.pv_pa, abtstack.pv_pa + (ABT_STACK_SIZE * PAGE_SIZE) - 1, 1155 abtstack.pv_va, abtstack.pv_va + (ABT_STACK_SIZE * PAGE_SIZE) - 1, 1156 ABT_STACK_SIZE); 1157 printf(mem_fmt, "UND stack", 1158 undstack.pv_pa, undstack.pv_pa + (UND_STACK_SIZE * PAGE_SIZE) - 1, 1159 undstack.pv_va, undstack.pv_va + (UND_STACK_SIZE * PAGE_SIZE) - 1, 1160 UND_STACK_SIZE); 1161 printf(mem_fmt, "SVC stack", 1162 kernelstack.pv_pa, kernelstack.pv_pa + (UPAGES * PAGE_SIZE) - 1, 1163 kernelstack.pv_va, kernelstack.pv_va + (UPAGES * PAGE_SIZE) - 1, 1164 UPAGES); 1165 printf(mem_fmt_nov, "Message Buffer", 1166 msgbufphys, msgbufphys + msgbuf_pgs * PAGE_SIZE - 1, msgbuf_pgs); 1167 printf(mem_fmt, "Free Memory", physical_freestart, physical_freeend-1, 1168 KERN_PHYSTOV(physical_freestart), KERN_PHYSTOV(physical_freeend-1), 1169 free_pages); 1170 #endif 1171 1172 /* 1173 * Now we have the real page tables in place so we can switch to them. 1174 * Once this is done we will be running with the REAL kernel page 1175 * tables. 1176 */ 1177 1178 /* Switch tables */ 1179 #ifdef VERBOSE_INIT_ARM 1180 printf("switching to new L1 page table @%#lx...", l1_pa); 1181 #endif 1182 1183 cpu_domains((DOMAIN_CLIENT << (PMAP_DOMAIN_KERNEL*2)) | DOMAIN_CLIENT); 1184 cpu_setttb(l1_pa, true); 1185 cpu_tlb_flushID(); 1186 cpu_domains(DOMAIN_CLIENT << (PMAP_DOMAIN_KERNEL*2)); 1187 1188 #ifdef VERBOSE_INIT_ARM 1189 printf("OK.\n"); 1190 #endif 1191 } 1192
Indexes created Sun Sep 21 14:09:52 GMT 2025