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  1. /*
  2.  * Copyright (C) 2005 Martin Decky
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. #include "main.h"
  30. #include <printf.h>
  31. #include "asm.h"
  32. #include "_components.h"
  33. #include <ofw.h>
  34. #include "ofwarch.h"
  35. #include <align.h>
  36.  
  37. #define KERNEL_VIRTUAL_ADDRESS 0x400000
  38.  
  39. bootinfo_t bootinfo;
  40.  
  41. void bootstrap(void)
  42. {
  43.     printf("HelenOS SPARC64 Bootloader\n");
  44.  
  45.     component_t components[COMPONENTS];
  46.     init_components(components);
  47.  
  48.     if (!ofw_memmap(&bootinfo.memmap)) {
  49.         printf("Error: unable to get memory map, halting.\n");
  50.         halt();
  51.     }
  52.    
  53.     if (bootinfo.memmap.total == 0) {
  54.         printf("Error: no memory detected, halting.\n");
  55.         halt();
  56.     }
  57.    
  58.     if (!ofw_screen(&bootinfo.screen)) {
  59.         printf("Error: unable to get screen properties, halting.\n");
  60.         halt();
  61.     }
  62.     bootinfo.screen.addr = ofw_translate(bootinfo.screen.addr);
  63.     /* transform scanline to bytes with respect to potential alignment */
  64.     bootinfo.screen.scanline = bootinfo.screen.scanline*bpp2align[bootinfo.screen.bpp >> 3];
  65.    
  66.     if (!ofw_keyboard(&bootinfo.keyboard))
  67.         printf("Error: unable to get keyboard properties\n");
  68.  
  69.     printf("\nDevice statistics\n");
  70.     printf(" memory: %dM\n", bootinfo.memmap.total>>20);
  71.     printf(" screen at %P, resolution %dx%d, %d bpp (scanline %d bytes)\n", (uintptr_t) bootinfo.screen.addr, bootinfo.screen.width, bootinfo.screen.height, bootinfo.screen.bpp, bootinfo.screen.scanline);
  72.     printf(" keyboard at %P (size %d bytes)\n", (uintptr_t) bootinfo.keyboard.addr, bootinfo.keyboard.size);
  73.  
  74.     printf("\nMemory statistics\n");
  75.     printf(" kernel entry point at %P\n", KERNEL_VIRTUAL_ADDRESS);
  76.     printf(" %P: boot info structure\n", &bootinfo);
  77.    
  78.     unsigned int i;
  79.     for (i = 0; i < COMPONENTS; i++)
  80.         printf(" %P: %s image (size %d bytes)\n", components[i].start, components[i].name, components[i].size);
  81.  
  82.     printf("\nCopying components\n");
  83.     unsigned int top = 0;
  84.     bootinfo.taskmap.count = 0;
  85.     for (i = 0; i < COMPONENTS; i++) {
  86.         void * base = (void *) KERNEL_VIRTUAL_ADDRESS;
  87.    
  88.         printf(" %s...", components[i].name);
  89.         top = ALIGN_UP(top, PAGE_SIZE);
  90.         memcpy(base + top, components[i].start, components[i].size);
  91.         if (i > 0) {
  92.             bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr = base + top;
  93.             bootinfo.taskmap.tasks[bootinfo.taskmap.count].size = components[i].size;
  94.             bootinfo.taskmap.count++;
  95.         }
  96.         top += components[i].size;
  97.         printf("done.\n");
  98.     }
  99.  
  100.     printf("\nBooting the kernel...\n");
  101.     jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS, &bootinfo, sizeof(bootinfo));
  102. }
  103.