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  1. /*
  2.  * Copyright (c) 2005 Martin Decky
  3.  * Copyright (c) 2006 Jakub Jermar
  4.  * All rights reserved.
  5.  *
  6.  * Redistribution and use in source and binary forms, with or without
  7.  * modification, are permitted provided that the following conditions
  8.  * are met:
  9.  *
  10.  * - Redistributions of source code must retain the above copyright
  11.  *   notice, this list of conditions and the following disclaimer.
  12.  * - Redistributions in binary form must reproduce the above copyright
  13.  *   notice, this list of conditions and the following disclaimer in the
  14.  *   documentation and/or other materials provided with the distribution.
  15.  * - The name of the author may not be used to endorse or promote products
  16.  *   derived from this software without specific prior written permission.
  17.  *
  18.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  19.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  20.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  21.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  22.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  23.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  24.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  25.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  26.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  27.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28.  */
  29.  
  30. #include "main.h"
  31. #include <printf.h>
  32. #include "asm.h"
  33. #include "_components.h"
  34. #include <balloc.h>
  35. #include <ofw.h>
  36. #include <ofw_tree.h>
  37. #include "ofwarch.h"
  38. #include <align.h>
  39.  
  40. bootinfo_t bootinfo;
  41. component_t components[COMPONENTS];
  42.  
  43. char *release = RELEASE;
  44.  
  45. #ifdef REVISION
  46.     char *revision = ", revision " REVISION;
  47. #else
  48.     char *revision = "";
  49. #endif
  50.  
  51. #ifdef TIMESTAMP
  52.     char *timestamp = "\nBuilt on " TIMESTAMP;
  53. #else
  54.     char *timestamp = "";
  55. #endif
  56.  
  57. /** Print version information. */
  58. static void version_print(void)
  59. {
  60.     printf("HelenOS SPARC64 Bootloader\nRelease %s%s%s\nCopyright (c) 2006 HelenOS project\n", release, revision, timestamp);
  61. }
  62.  
  63. void bootstrap(void)
  64. {
  65.     version_print();
  66.    
  67.     init_components(components);
  68.  
  69.     if (!ofw_get_physmem_start(&bootinfo.physmem_start)) {
  70.         printf("Error: unable to get start of physical memory.\n");
  71.         halt();
  72.     }
  73.  
  74.     if (!ofw_memmap(&bootinfo.memmap)) {
  75.         printf("Error: unable to get memory map, halting.\n");
  76.         halt();
  77.     }
  78.    
  79.     if (bootinfo.memmap.total == 0) {
  80.         printf("Error: no memory detected, halting.\n");
  81.         halt();
  82.     }
  83.    
  84.     printf("\nSystem info\n");
  85.     printf(" memory: %dM starting at %P\n",
  86.         bootinfo.memmap.total >> 20, bootinfo.physmem_start);
  87.  
  88.     printf("\nMemory statistics\n");
  89.     printf(" kernel entry point at %P\n", KERNEL_VIRTUAL_ADDRESS);
  90.     printf(" %P: boot info structure\n", &bootinfo);
  91.    
  92.     unsigned int i;
  93.     for (i = 0; i < COMPONENTS; i++)
  94.         printf(" %P: %s image (size %d bytes)\n", components[i].start,
  95.             components[i].name, components[i].size);
  96.  
  97.     void * base = (void *) KERNEL_VIRTUAL_ADDRESS;
  98.     unsigned int top = 0;
  99.  
  100.     printf("\nCopying components\n");
  101.     bootinfo.taskmap.count = 0;
  102.     for (i = 0; i < COMPONENTS; i++) {
  103.         printf(" %s...", components[i].name);
  104.         top = ALIGN_UP(top, PAGE_SIZE);
  105.  
  106.         /*
  107.          * At this point, we claim the physical memory that we are
  108.          * going to use. We should be safe in case of the virtual
  109.          * address space because the OpenFirmware, according to its
  110.          * SPARC binding, should restrict its use of virtual memory
  111.          * to addresses from [0xffd00000; 0xffefffff] and
  112.          * [0xfe000000; 0xfeffffff].
  113.          */
  114.         (void) ofw_claim_phys(bootinfo.physmem_start + base + top,
  115.             ALIGN_UP(components[i].size, PAGE_SIZE));
  116.            
  117.         memcpy(base + top, components[i].start, components[i].size);
  118.         if (i > 0) {
  119.             bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr =
  120.                 base + top;
  121.             bootinfo.taskmap.tasks[bootinfo.taskmap.count].size =
  122.                 components[i].size;
  123.             bootinfo.taskmap.count++;
  124.         }
  125.         top += components[i].size;
  126.         printf("done.\n");
  127.     }
  128.  
  129.     /*
  130.      * Claim the physical memory for the boot allocator.
  131.      * Initialize the boot allocator.
  132.      */
  133.     (void) ofw_claim_phys(bootinfo.physmem_start +
  134.         base + ALIGN_UP(top, PAGE_SIZE), BALLOC_MAX_SIZE);
  135.     balloc_init(&bootinfo.ballocs, ALIGN_UP(((uintptr_t) base) + top,
  136.         PAGE_SIZE));
  137.  
  138.     printf("\nCanonizing OpenFirmware device tree...");
  139.     bootinfo.ofw_root = ofw_tree_build();
  140.     printf("done.\n");
  141.  
  142. #ifdef CONFIG_SMP
  143.     printf("\nChecking for secondary processors...");
  144.     if (!ofw_cpu())
  145.         printf("Error: unable to get CPU properties\n");
  146.     printf("done.\n");
  147. #endif
  148.  
  149.     printf("\nBooting the kernel...\n");
  150.     jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS,
  151.         bootinfo.physmem_start | BSP_PROCESSOR, &bootinfo,
  152.         sizeof(bootinfo));
  153. }
  154.  
  155.