WebSVN – HelenOS-historic – Diff – /boot/trunk/arch/ppc32/loader/main.c



 
 
static void check_align(const void *addr, const char *desc)
{
    if ((unsigned int) addr % PAGE_SIZE != 0) {
        printf("Error: %s not on page boundary, halting.\n", desc);
        halt();
    }
}
 
 

        void *new_va = (void *) (ALIGN_UP((unsigned int) KERNEL_END + HEAP_GAP, PAGE_SIZE) + *top);
        void *new_pa = (void *) (HEAP_GAP + *top);
        *top += PAGE_SIZE;
       
        if (ofw_map(new_pa, new_va, PAGE_SIZE, 0) != 0) {
            printf("Error: Unable to map page aligned memory at %L (physical %L), halting.\n", new_va, new_pa);
            halt();
        }
       
        if ((unsigned int) new_pa + PAGE_SIZE < KERNEL_SIZE) {
            printf("Error: %s cannot be relocated, halting.\n", desc);
            halt();
        }
       
        printf("Relocating %L -> %L (physical %L -> %L)\n", va, new_va, *pa, new_pa);
        *pa = new_pa;

    check_align(KERNEL_START, "Kernel image");
    check_align(&real_mode, "Bootstrap trampoline");
    check_align(&trans, "Translation table");
   
    if (!ofw_memmap(&bootinfo.memmap)) {
        printf("Error: Unable to get memory map, halting.\n");
        halt();
    }
   
    if (bootinfo.memmap.total == 0) {
        printf("Error: No memory detected, halting.\n");
        halt();
    }
   
    if (!ofw_screen(&bootinfo.screen)) {
        printf("Error: Unable to get screen properties, halting.\n");
        halt();
    }
   
    printf("\nDevice statistics\n");
    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);
   
    void *real_mode_pa = ofw_translate(&real_mode);
    void *trans_pa = ofw_translate(&trans);
    void *bootinfo_pa = ofw_translate(&bootinfo);
    void *fb = (void *) (((unsigned int) bootinfo.screen.addr) & ((unsigned int) ~0 << 17));
   
    printf("\nMemory statistics (total %d MB)\n", bootinfo.memmap.total >> 20);
    printf(" kernel image         at %L (size %d bytes)\n", KERNEL_START, KERNEL_SIZE);
    printf(" boot info            at %L (physical %L)\n", &bootinfo, bootinfo_pa);
    printf(" bootstrap trampoline at %L (physical %L)\n", &real_mode, real_mode_pa);

    fix_overlap(&real_mode, &real_mode_pa, "Bootstrap trampoline", &top);
    fix_overlap(&trans, &trans_pa, "Translation table", &top);
    fix_overlap(&bootinfo, &bootinfo_pa, "Boot info", &top);
   
    printf("\nBooting the kernel...\n");
    jump_to_kernel(bootinfo_pa, sizeof(bootinfo), trans_pa, KERNEL_SIZE, fb, real_mode_pa);
}

Subversion Repositories HelenOS-historic

(root)/boot/trunk/arch/ppc32/loader/main.c – Rev 1131 → 1146

Rev 1131		Rev 1146
Line 40...		Line 40...
40		40
41		41
42	static void check_align(const void addr, const char desc)	42	static void check_align(const void addr, const char desc)
43	{	43	{
44	if ((unsigned int) addr % PAGE_SIZE != 0) {	44	if ((unsigned int) addr % PAGE_SIZE != 0) {
45	printf("Error: %s not on page boundary\n", desc);	45	printf("Error: %s not on page boundary, halting.\n", desc);
46	halt();	46	halt();
47	}	47	}
48	}	48	}
49		49
50		50
Line 56...		Line 56...
56	void new_va = (void ) (ALIGN_UP((unsigned int) KERNEL_END + HEAP_GAP, PAGE_SIZE) + *top);	56	void new_va = (void ) (ALIGN_UP((unsigned int) KERNEL_END + HEAP_GAP, PAGE_SIZE) + *top);
57	void new_pa = (void ) (HEAP_GAP + *top);	57	void new_pa = (void ) (HEAP_GAP + *top);
58	*top += PAGE_SIZE;	58	*top += PAGE_SIZE;
59		59
60	if (ofw_map(new_pa, new_va, PAGE_SIZE, 0) != 0) {	60	if (ofw_map(new_pa, new_va, PAGE_SIZE, 0) != 0) {
61	printf("Error: Unable to map page aligned memory at %L (physical %L)\n", new_va, new_pa);	61	printf("Error: Unable to map page aligned memory at %L (physical %L), halting.\n", new_va, new_pa);
62	halt();	62	halt();
63	}	63	}
64		64
65	if ((unsigned int) new_pa + PAGE_SIZE < KERNEL_SIZE) {	65	if ((unsigned int) new_pa + PAGE_SIZE < KERNEL_SIZE) {
66	printf("Error: %s cannot be relocated\n", desc);	66	printf("Error: %s cannot be relocated, halting.\n", desc);
67	halt();	67	halt();
68	}	68	}
69		69
70	printf("Relocating %L -> %L (physical %L -> %L)\n", va, new_va, *pa, new_pa);	70	printf("Relocating %L -> %L (physical %L -> %L)\n", va, new_va, *pa, new_pa);
71	*pa = new_pa;	71	*pa = new_pa;
Line 81...		Line 81...
81	check_align(KERNEL_START, "Kernel image");	81	check_align(KERNEL_START, "Kernel image");
82	check_align(&real_mode, "Bootstrap trampoline");	82	check_align(&real_mode, "Bootstrap trampoline");
83	check_align(&trans, "Translation table");	83	check_align(&trans, "Translation table");
84		84
85	if (!ofw_memmap(&bootinfo.memmap)) {	85	if (!ofw_memmap(&bootinfo.memmap)) {
86	printf("Error: Unable to get memory map\n");	86	printf("Error: Unable to get memory map, halting.\n");
-		87	halt();
-		88	}
-		89
-		90	if (bootinfo.memmap.total == 0) {
-		91	printf("Error: No memory detected, halting.\n");
87	halt();	92	halt();
88	}	93	}
89		94
90	if (!ofw_screen(&bootinfo.screen)) {	95	if (!ofw_screen(&bootinfo.screen)) {
91	printf("Error: Unable to get screen properties\n");	96	printf("Error: Unable to get screen properties, halting.\n");
92	halt();	97	halt();
93	}	98	}
94		99
95	printf("\nDevice statistics\n");	100	printf("\nDevice statistics\n");
96	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);	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);
97		102
98	void *real_mode_pa = ofw_translate(&real_mode);	103	void *real_mode_pa = ofw_translate(&real_mode);
99	void *trans_pa = ofw_translate(&trans);	104	void *trans_pa = ofw_translate(&trans);
100	void *bootinfo_pa = ofw_translate(&bootinfo);	105	void *bootinfo_pa = ofw_translate(&bootinfo);
-		106	void fb = (void ) (((unsigned int) bootinfo.screen.addr) & ((unsigned int) ~0 << 17));
101		107
102	printf("\nMemory statistics (total %d MB)\n", bootinfo.memmap.total >> 20);	108	printf("\nMemory statistics (total %d MB)\n", bootinfo.memmap.total >> 20);
103	printf(" kernel image at %L (size %d bytes)\n", KERNEL_START, KERNEL_SIZE);	109	printf(" kernel image at %L (size %d bytes)\n", KERNEL_START, KERNEL_SIZE);
104	printf(" boot info at %L (physical %L)\n", &bootinfo, bootinfo_pa);	110	printf(" boot info at %L (physical %L)\n", &bootinfo, bootinfo_pa);
105	printf(" bootstrap trampoline at %L (physical %L)\n", &real_mode, real_mode_pa);	111	printf(" bootstrap trampoline at %L (physical %L)\n", &real_mode, real_mode_pa);
Line 116...		Line 122...
116	fix_overlap(&real_mode, &real_mode_pa, "Bootstrap trampoline", &top);	122	fix_overlap(&real_mode, &real_mode_pa, "Bootstrap trampoline", &top);
117	fix_overlap(&trans, &trans_pa, "Translation table", &top);	123	fix_overlap(&trans, &trans_pa, "Translation table", &top);
118	fix_overlap(&bootinfo, &bootinfo_pa, "Boot info", &top);	124	fix_overlap(&bootinfo, &bootinfo_pa, "Boot info", &top);
119		125
120	printf("\nBooting the kernel...\n");	126	printf("\nBooting the kernel...\n");
121	jump_to_kernel(bootinfo_pa, sizeof(bootinfo), trans_pa, KERNEL_SIZE, real_mode_pa);	127	jump_to_kernel(bootinfo_pa, sizeof(bootinfo), trans_pa, KERNEL_SIZE, fb, real_mode_pa);
122	}	128	}