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Line 32... Line 32...
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#define KERNEL_START ((void *) &_binary_____________kernel_kernel_bin_start)
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#define KERNEL_START ((void *) &_binary_____________kernel_kernel_bin_start)
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#define KERNEL_END ((void *) &_binary_____________kernel_kernel_bin_end)
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#define KERNEL_END ((void *) &_binary_____________kernel_kernel_bin_end)
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#define KERNEL_SIZE ((unsigned int) KERNEL_END - (unsigned int) KERNEL_START)
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#define KERNEL_SIZE ((unsigned int) KERNEL_END - (unsigned int) KERNEL_START)
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#define INIT_START ((void *) &_binary_____________uspace_init_init_start)
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#define INIT_END ((void *) &_binary_____________uspace_init_init_end)
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#define INIT_SIZE ((unsigned int) INIT_END - (unsigned int) INIT_START)
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#define HEAP_GAP 1024000
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#define HEAP_GAP 1024000
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bootinfo_t bootinfo;
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bootinfo_t bootinfo;
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void bootstrap(void)
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void bootstrap(void)
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{
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{
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    printf("\nHelenOS PPC Bootloader\n");
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    printf("\nHelenOS PPC Bootloader\n");
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    check_align(KERNEL_START, "Kernel image");
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    check_align(KERNEL_START, "Kernel image");
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    check_align(INIT_START, "Init image");
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    check_align(&real_mode, "Bootstrap trampoline");
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    check_align(&real_mode, "Bootstrap trampoline");
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    check_align(&trans, "Translation table");
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    check_align(&trans, "Translation table");
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    if (!ofw_memmap(&bootinfo.memmap)) {
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    if (!ofw_memmap(&bootinfo.memmap)) {
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        printf("Error: Unable to get memory map, halting.\n");
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        printf("Error: Unable to get memory map, halting.\n");
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    void *bootinfo_pa = ofw_translate(&bootinfo);
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    void *bootinfo_pa = ofw_translate(&bootinfo);
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    void *fb = (void *) (((unsigned int) bootinfo.screen.addr) & ((unsigned int) ~0 << 17));
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    void *fb = (void *) (((unsigned int) bootinfo.screen.addr) & ((unsigned int) ~0 << 17));
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    printf("\nMemory statistics (total %d MB)\n", bootinfo.memmap.total >> 20);
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    printf("\nMemory statistics (total %d MB)\n", bootinfo.memmap.total >> 20);
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    printf(" kernel image         at %L (size %d bytes)\n", KERNEL_START, KERNEL_SIZE);
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    printf(" kernel image         at %L (size %d bytes)\n", KERNEL_START, KERNEL_SIZE);
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    printf(" init image           at %L (size %d bytes)\n", INIT_START, INIT_SIZE);
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    printf(" boot info            at %L (physical %L)\n", &bootinfo, bootinfo_pa);
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    printf(" boot info structure  at %L (physical %L)\n", &bootinfo, bootinfo_pa);
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    printf(" bootstrap trampoline at %L (physical %L)\n", &real_mode, real_mode_pa);
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    printf(" bootstrap trampoline at %L (physical %L)\n", &real_mode, real_mode_pa);
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    printf(" translation table    at %L (physical %L)\n", &trans, trans_pa);
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    printf(" translation table    at %L (physical %L)\n", &trans, trans_pa);
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    unsigned int top = ALIGN_UP(KERNEL_SIZE, PAGE_SIZE) + ALIGN_UP(INIT_SIZE, PAGE_SIZE);
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    unsigned int top = ALIGN_UP(KERNEL_SIZE, PAGE_SIZE);
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    unsigned int kernel_pages = ALIGN_UP(KERNEL_SIZE, PAGE_SIZE) >> PAGE_WIDTH;
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    unsigned int init_pages = ALIGN_UP(INIT_SIZE, PAGE_SIZE) >> PAGE_WIDTH;
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    unsigned int addr;
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    unsigned int i;
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    for (addr = 0; addr < KERNEL_SIZE; addr += PAGE_SIZE) {
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    for (i = 0; i < kernel_pages; i++) {
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        void *pa = ofw_translate(KERNEL_START + addr);
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        void *pa = ofw_translate(KERNEL_START + (i << PAGE_WIDTH));
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        fix_overlap(KERNEL_START + addr, &pa, "Kernel image", &top);
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        fix_overlap(KERNEL_START + (i << PAGE_WIDTH), &pa, "Kernel image", &top);
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        trans[i] = pa;
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    }
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    for (i = 0; i < init_pages; i++) {
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        void *pa = ofw_translate(INIT_START + (i << PAGE_WIDTH));
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        fix_overlap(INIT_START + (i << PAGE_WIDTH), &pa, "Init image", &top);
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        trans[addr >> PAGE_WIDTH] = pa;
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        trans[kernel_pages + i] = pa;
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        if (i == 0) {
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            bootinfo.init.addr = (void *) ((kernel_pages + i) << PAGE_WIDTH);
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            bootinfo.init.size = INIT_SIZE;
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        }
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    }
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    }
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    fix_overlap(&real_mode, &real_mode_pa, "Bootstrap trampoline", &top);
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    fix_overlap(&real_mode, &real_mode_pa, "Bootstrap trampoline", &top);
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    fix_overlap(&trans, &trans_pa, "Translation table", &top);
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    fix_overlap(&trans, &trans_pa, "Translation table", &top);
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    fix_overlap(&bootinfo, &bootinfo_pa, "Boot info", &top);
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    fix_overlap(&bootinfo, &bootinfo_pa, "Boot info", &top);
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    printf("\nBooting the kernel...\n");
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    printf("\nBooting the kernel...\n");
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    jump_to_kernel(bootinfo_pa, sizeof(bootinfo), trans_pa, KERNEL_SIZE, fb, real_mode_pa);
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    jump_to_kernel(bootinfo_pa, sizeof(bootinfo), trans_pa, (kernel_pages + init_pages) << PAGE_WIDTH, fb, real_mode_pa);
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}
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}