Subversion Repositories HelenOS-historic

Rev

Rev 1166 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 1166 Rev 1395
Line 27... Line 27...
27 
 */
 27 
 */
28 
 
 28 
 
29 
#include "main.h"
29 
#include "main.h"
30 
#include "printf.h"
 30 
#include "printf.h"
31 
#include "asm.h"
 31 
#include "asm.h"
32 
 
 - 
 
33 
#define KERNEL_START ((void *) &_binary_____________kernel_kernel_bin_start)
 - 
 
34 
#define KERNEL_END ((void *) &_binary_____________kernel_kernel_bin_end)
 32 
#include "_components.h"
35 
#define KERNEL_SIZE ((unsigned long) KERNEL_END - (unsigned long) KERNEL_START)
 - 
 
36 
 
 33 
 
37 
#define HEAP_GAP 1024000
 34 
#define HEAP_GAP 1024000
38 
 
 35 
 
39 
bootinfo_t bootinfo;
 36 
bootinfo_t bootinfo;
40 
 
 37 
 
Line 74... Line 71...
74 
}
 71 
}
75 
 
 72 
 
76 
 
 73 
 
77 
void bootstrap(void)
 74 
void bootstrap(void)
78 
{
 75 
{
79 
    printf("\nHelenOS PPC64 Bootloader\n");
 76 
    printf("\nHelenOS PPC Bootloader\n");
- 
 
 77 
   
- 
 
 78 
    init_components();
- 
 
 79 
   
- 
 
 80 
    unsigned int i;
80 
   
 81 
   
- 
 
 82 
    for (i = 0; i < COMPONENTS; i++)
81 
    check_align(KERNEL_START, "Kernel image");
 83 
        check_align(components[i].start, components[i].name);
- 
 
 84 
   
82 
    check_align(&real_mode, "Bootstrap trampoline");
 85 
    check_align(&real_mode, "bootstrap trampoline");
83 
    check_align(&trans, "Translation table");
 86 
    check_align(&trans, "translation table");
84 
   
 87 
   
85 
    if (!ofw_memmap(&bootinfo.memmap)) {
 88 
    if (!ofw_memmap(&bootinfo.memmap)) {
86 
        printf("Error: Unable to get memory map, halting.\n");
 89 
        printf("Error: unable to get memory map, halting.\n");
87 
        halt();
 90 
        halt();
88 
    }
 91 
    }
89 
   
 92 
   
90 
    if (bootinfo.memmap.total == 0) {
 93 
    if (bootinfo.memmap.total == 0) {
91 
        printf("Error: No memory detected, halting.\n");
 94 
        printf("Error: no memory detected, halting.\n");
92 
        halt();
 95 
        halt();
93 
    }
 96 
    }
94 
   
 97 
   
95 
    if (!ofw_screen(&bootinfo.screen)) {
 98 
    if (!ofw_screen(&bootinfo.screen)) {
96 
        printf("Error: Unable to get screen properties, halting.\n");
 99 
        printf("Error: unable to get screen properties, halting.\n");
97 
        halt();
 100 
        halt();
98 
    }
 101 
    }
99 
   
 102 
   
100 
    printf("\nDevice statistics\n");
 103 
    printf("\nDevice statistics\n");
101 
    printf(" screen at %L, resolution %dx%d, %d bpp (scanline %d bytes)\n", bootinfo.screen.addr, bootinfo.screen.width, bootinfo.screen.height, bootinfo.screen.bpp, bootinfo.screen.scanline);
 104 
    printf(" screen at %L, resolution %dx%d, %d bpp (scanline %d bytes)\n", bootinfo.screen.addr, bootinfo.screen.width, bootinfo.screen.height, bootinfo.screen.bpp, bootinfo.screen.scanline);
102 
   
 105 
   
103 
    void *real_mode_pa = ofw_translate(&real_mode);
 106 
    void *real_mode_pa = ofw_translate(&real_mode);
104 
    void *trans_pa = ofw_translate(&trans);
 107 
    void *trans_pa = ofw_translate(&trans);
105 
    void *bootinfo_pa = ofw_translate(&bootinfo);
 108 
    void *bootinfo_pa = ofw_translate(&bootinfo);
106 
    void *fb = (void *) (((unsigned long) bootinfo.screen.addr) & ((unsigned long) ~0 << 17));
 - 
 
107 
   
 109 
   
108 
    printf("\nMemory statistics (total %d MB)\n", bootinfo.memmap.total >> 20);
 110 
    printf("\nMemory statistics (total %d MB)\n", bootinfo.memmap.total >> 20);
109 
    printf(" kernel image         at %L (size %d bytes)\n", KERNEL_START, KERNEL_SIZE);
 - 
 
110 
    printf(" boot info            at %L (physical %L)\n", &bootinfo, bootinfo_pa);
 111 
    printf(" %L: boot info structure (physical %L)\n", &bootinfo, bootinfo_pa);
111 
    printf(" bootstrap trampoline at %L (physical %L)\n", &real_mode, real_mode_pa);
 112 
    printf(" %L: bootstrap trampoline (physical %L)\n", &real_mode, real_mode_pa);
112 
    printf(" translation table    at %L (physical %L)\n", &trans, trans_pa);
 113 
    printf(" %L: translation table (physical %L)\n", &trans, trans_pa);
- 
 
 114 
    for (i = 0; i < COMPONENTS; i++)
- 
 
 115 
        printf(" %L: %s image (size %d bytes)\n", components[i].start, components[i].name, components[i].size);
- 
 
 116 
   
- 
 
 117 
    unsigned long top = 0;
- 
 
 118 
    for (i = 0; i < COMPONENTS; i++)
- 
 
 119 
        top += ALIGN_UP(components[i].size, PAGE_SIZE);
113 
   
 120 
   
114 
    unsigned long top = ALIGN_UP(KERNEL_SIZE, PAGE_SIZE);
 121 
    unsigned long pages = ALIGN_UP(KERNEL_SIZE, PAGE_SIZE) >> PAGE_WIDTH;
- 
 
 122 
   
- 
 
 123 
    for (i = 0; i < pages; i++) {
- 
 
 124 
        void *pa = ofw_translate(KERNEL_START + (i << PAGE_WIDTH));
- 
 
 125 
        fix_overlap(KERNEL_START + (i << PAGE_WIDTH), &pa, "kernel", &top);
- 
 
 126 
        trans[i] = pa;
- 
 
 127 
    }
- 
 
 128 
   
- 
 
 129 
    bootinfo.taskmap.count = 0;
- 
 
 130 
    for (i = 1; i < COMPONENTS; i++) {
- 
 
 131 
        unsigned long component_pages = ALIGN_UP(components[i].size, PAGE_SIZE) >> PAGE_WIDTH;
115 
    unsigned long addr;
 132 
        unsigned long j;
- 
 
 133 
       
116 
    for (addr = 0; addr < KERNEL_SIZE; addr += PAGE_SIZE) {
 134 
        for (j = 0; j < component_pages; j++) {
117 
        void *pa = ofw_translate(KERNEL_START + addr);
 135 
            void *pa = ofw_translate(components[i].start + (j << PAGE_WIDTH));
118 
        fix_overlap(KERNEL_START + addr, &pa, "Kernel image", &top);
 136 
            fix_overlap(components[i].start + (j << PAGE_WIDTH), &pa, components[i].name, &top);
119 
        trans[addr >> PAGE_WIDTH] = pa;
 137 
            trans[pages + j] = pa;
- 
 
 138 
            if (j == 0) {
- 
 
 139 
                bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr = (void *) (pages << PAGE_WIDTH);
- 
 
 140 
                bootinfo.taskmap.tasks[bootinfo.taskmap.count].size = components[i].size;
- 
 
 141 
                bootinfo.taskmap.count++;
- 
 
 142 
            }
- 
 
 143 
        }
- 
 
 144 
       
- 
 
 145 
        pages += component_pages;
120 
    }
 146 
    }
121 
   
 147 
   
122 
    fix_overlap(&real_mode, &real_mode_pa, "Bootstrap trampoline", &top);
 148 
    fix_overlap(&real_mode, &real_mode_pa, "bootstrap trampoline", &top);
123 
    fix_overlap(&trans, &trans_pa, "Translation table", &top);
 149 
    fix_overlap(&trans, &trans_pa, "translation table", &top);
124 
    fix_overlap(&bootinfo, &bootinfo_pa, "Boot info", &top);
 150 
    fix_overlap(&bootinfo, &bootinfo_pa, "boot info", &top);
125 
   
 151 
   
126 
    printf("\nBooting the kernel...\n");
 152 
    printf("\nBooting the kernel...\n");
127 
    jump_to_kernel(bootinfo_pa, sizeof(bootinfo), trans_pa, KERNEL_SIZE, fb, real_mode_pa);
 153 
    jump_to_kernel(bootinfo_pa, sizeof(bootinfo), trans_pa, pages << PAGE_WIDTH, real_mode_pa);
128 
}
 154 
}