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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. void bootstrap(void)
  44. {
  45.     printf("HelenOS SPARC64 Bootloader\n");
  46.    
  47.     init_components(components);
  48.  
  49.     if (!ofw_get_physmem_start(&bootinfo.physmem_start)) {
  50.         printf("Error: unable to get start of physical memory.\n");
  51.         halt();
  52.     }
  53.  
  54.     if (!ofw_memmap(&bootinfo.memmap)) {
  55.         printf("Error: unable to get memory map, halting.\n");
  56.         halt();
  57.     }
  58.    
  59.     if (bootinfo.memmap.total == 0) {
  60.         printf("Error: no memory detected, halting.\n");
  61.         halt();
  62.     }
  63.    
  64.     printf("\nSystem info\n");
  65.     printf(" memory: %dM starting at %P\n",
  66.         bootinfo.memmap.total >> 20, bootinfo.physmem_start);
  67.  
  68.     printf("\nMemory statistics\n");
  69.     printf(" kernel entry point at %P\n", KERNEL_VIRTUAL_ADDRESS);
  70.     printf(" %P: boot info structure\n", &bootinfo);
  71.    
  72.     unsigned int i;
  73.     for (i = 0; i < COMPONENTS; i++)
  74.         printf(" %P: %s image (size %d bytes)\n", components[i].start,
  75.             components[i].name, components[i].size);
  76.  
  77.     void * base = (void *) KERNEL_VIRTUAL_ADDRESS;
  78.     unsigned int top = 0;
  79.  
  80.     printf("\nCopying components\n");
  81.     bootinfo.taskmap.count = 0;
  82.     for (i = 0; i < COMPONENTS; i++) {
  83.         printf(" %s...", components[i].name);
  84.         top = ALIGN_UP(top, PAGE_SIZE);
  85.         memcpy(base + top, components[i].start, components[i].size);
  86.         if (i > 0) {
  87.             bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr = base + top;
  88.             bootinfo.taskmap.tasks[bootinfo.taskmap.count].size = components[i].size;
  89.             bootinfo.taskmap.count++;
  90.         }
  91.         top += components[i].size;
  92.         printf("done.\n");
  93.     }
  94.  
  95.     balloc_init(&bootinfo.ballocs, ALIGN_UP(((uintptr_t) base) + top, PAGE_SIZE));
  96.  
  97.     printf("\nCanonizing OpenFirmware device tree...");
  98.     bootinfo.ofw_root = ofw_tree_build();
  99.     printf("done.\n");
  100.  
  101.     printf("\nChecking for secondary processors...");
  102.     if (!ofw_cpu())
  103.         printf("Error: unable to get CPU properties\n");
  104.     printf("done.\n");
  105.  
  106.     printf("\nBooting the kernel...\n");
  107.     jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS,
  108.         bootinfo.physmem_start | BSP_PROCESSOR, &bootinfo, sizeof(bootinfo));
  109. }
  110.