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1 | /* |
1 | /* |
2 | * Copyright (C) 2005 Martin Decky |
2 | * Copyright (C) 2005 Martin Decky |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
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 |
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. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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 |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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 |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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 |
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. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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 | #include "_components.h" |
32 | #include "_components.h" |
33 | 33 | ||
34 | #define HEAP_GAP 1024000 |
34 | #define HEAP_GAP 1024000 |
35 | 35 | ||
36 | bootinfo_t bootinfo; |
36 | bootinfo_t bootinfo; |
37 | 37 | ||
38 | 38 | ||
39 | static void check_align(const void *addr, const char *desc) |
39 | static void check_align(const void *addr, const char *desc) |
40 | { |
40 | { |
41 | if ((unsigned int) addr % PAGE_SIZE != 0) { |
41 | if ((unsigned int) addr % PAGE_SIZE != 0) { |
42 | printf("Error: %s not on page boundary, halting.\n", desc); |
42 | printf("Error: %s not on page boundary, halting.\n", desc); |
43 | halt(); |
43 | halt(); |
44 | } |
44 | } |
45 | } |
45 | } |
46 | 46 | ||
47 | 47 | ||
48 | static void fix_overlap(void *va, void **pa, const char *desc, unsigned int *top) |
48 | static void fix_overlap(void *va, void **pa, const char *desc, unsigned int *top) |
49 | { |
49 | { |
50 | if ((unsigned int) *pa + PAGE_SIZE < *top) { |
50 | if ((unsigned int) *pa + PAGE_SIZE < *top) { |
51 | printf("Warning: %s overlaps kernel physical area\n", desc); |
51 | printf("Warning: %s overlaps kernel physical area\n", desc); |
52 | 52 | ||
53 | void *new_va = (void *) (ALIGN_UP((unsigned int) KERNEL_END + HEAP_GAP, PAGE_SIZE) + *top); |
53 | void *new_va = (void *) (ALIGN_UP((unsigned int) KERNEL_END + HEAP_GAP, PAGE_SIZE) + *top); |
54 | void *new_pa = (void *) (HEAP_GAP + *top); |
54 | void *new_pa = (void *) (HEAP_GAP + *top); |
55 | *top += PAGE_SIZE; |
55 | *top += PAGE_SIZE; |
56 | 56 | ||
57 | if (ofw_map(new_pa, new_va, PAGE_SIZE, 0) != 0) { |
57 | if (ofw_map(new_pa, new_va, PAGE_SIZE, 0) != 0) { |
58 | printf("Error: Unable to map page aligned memory at %L (physical %L), halting.\n", new_va, new_pa); |
58 | printf("Error: Unable to map page aligned memory at %L (physical %L), halting.\n", new_va, new_pa); |
59 | halt(); |
59 | halt(); |
60 | } |
60 | } |
61 | 61 | ||
62 | if ((unsigned int) new_pa + PAGE_SIZE < KERNEL_SIZE) { |
62 | if ((unsigned int) new_pa + PAGE_SIZE < KERNEL_SIZE) { |
63 | printf("Error: %s cannot be relocated, halting.\n", desc); |
63 | printf("Error: %s cannot be relocated, halting.\n", desc); |
64 | halt(); |
64 | halt(); |
65 | } |
65 | } |
66 | 66 | ||
67 | printf("Relocating %L -> %L (physical %L -> %L)\n", va, new_va, *pa, new_pa); |
67 | printf("Relocating %L -> %L (physical %L -> %L)\n", va, new_va, *pa, new_pa); |
68 | *pa = new_pa; |
68 | *pa = new_pa; |
69 | memcpy(new_va, va, PAGE_SIZE); |
69 | memcpy(new_va, va, PAGE_SIZE); |
70 | } |
70 | } |
71 | } |
71 | } |
72 | 72 | ||
73 | 73 | ||
74 | void bootstrap(void) |
74 | void bootstrap(void) |
75 | { |
75 | { |
76 | printf("\nHelenOS PPC Bootloader\n"); |
76 | printf("\nHelenOS PPC Bootloader\n"); |
77 | 77 | ||
78 | init_components(); |
78 | init_components(); |
79 | 79 | ||
80 | unsigned int i; |
80 | unsigned int i; |
81 | 81 | ||
82 | for (i = 0; i < COMPONENTS; i++) |
82 | for (i = 0; i < COMPONENTS; i++) |
83 | check_align(components[i].start, components[i].name); |
83 | check_align(components[i].start, components[i].name); |
84 | 84 | ||
85 | check_align(&real_mode, "bootstrap trampoline"); |
85 | check_align(&real_mode, "bootstrap trampoline"); |
86 | check_align(&trans, "translation table"); |
86 | check_align(&trans, "translation table"); |
87 | 87 | ||
88 | if (!ofw_memmap(&bootinfo.memmap)) { |
88 | if (!ofw_memmap(&bootinfo.memmap)) { |
89 | printf("Error: unable to get memory map, halting.\n"); |
89 | printf("Error: unable to get memory map, halting.\n"); |
90 | halt(); |
90 | halt(); |
91 | } |
91 | } |
92 | 92 | ||
93 | if (bootinfo.memmap.total == 0) { |
93 | if (bootinfo.memmap.total == 0) { |
94 | printf("Error: no memory detected, halting.\n"); |
94 | printf("Error: no memory detected, halting.\n"); |
95 | halt(); |
95 | halt(); |
96 | } |
96 | } |
97 | 97 | ||
98 | if (!ofw_screen(&bootinfo.screen)) { |
98 | if (!ofw_screen(&bootinfo.screen)) { |
99 | printf("Error: unable to get screen properties, halting.\n"); |
99 | printf("Error: unable to get screen properties, halting.\n"); |
100 | halt(); |
100 | halt(); |
101 | } |
101 | } |
102 | 102 | ||
- | 103 | if (!ofw_keyboard(&bootinfo.keyboard)) { |
|
- | 104 | printf("Error: unable to get keyboard properties, halting.\n"); |
|
- | 105 | halt(); |
|
- | 106 | } |
|
- | 107 | ||
103 | printf("\nDevice statistics\n"); |
108 | printf("\nDevice statistics\n"); |
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); |
109 | 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); |
- | 110 | printf(" keyboard at %L (size %d bytes)\n", bootinfo.keyboard.addr, bootinfo.keyboard.size); |
|
105 | 111 | ||
106 | void *real_mode_pa = ofw_translate(&real_mode); |
112 | void *real_mode_pa = ofw_translate(&real_mode); |
107 | void *trans_pa = ofw_translate(&trans); |
113 | void *trans_pa = ofw_translate(&trans); |
108 | void *bootinfo_pa = ofw_translate(&bootinfo); |
114 | void *bootinfo_pa = ofw_translate(&bootinfo); |
109 | 115 | ||
110 | printf("\nMemory statistics (total %d MB)\n", bootinfo.memmap.total >> 20); |
116 | printf("\nMemory statistics (total %d MB)\n", bootinfo.memmap.total >> 20); |
111 | printf(" %L: boot info structure (physical %L)\n", &bootinfo, bootinfo_pa); |
117 | printf(" %L: boot info structure (physical %L)\n", &bootinfo, bootinfo_pa); |
112 | printf(" %L: bootstrap trampoline (physical %L)\n", &real_mode, real_mode_pa); |
118 | printf(" %L: bootstrap trampoline (physical %L)\n", &real_mode, real_mode_pa); |
113 | printf(" %L: translation table (physical %L)\n", &trans, trans_pa); |
119 | printf(" %L: translation table (physical %L)\n", &trans, trans_pa); |
114 | for (i = 0; i < COMPONENTS; i++) |
120 | for (i = 0; i < COMPONENTS; i++) |
115 | printf(" %L: %s image (size %d bytes)\n", components[i].start, components[i].name, components[i].size); |
121 | printf(" %L: %s image (size %d bytes)\n", components[i].start, components[i].name, components[i].size); |
116 | 122 | ||
117 | unsigned int top = 0; |
123 | unsigned int top = 0; |
118 | for (i = 0; i < COMPONENTS; i++) |
124 | for (i = 0; i < COMPONENTS; i++) |
119 | top += ALIGN_UP(components[i].size, PAGE_SIZE); |
125 | top += ALIGN_UP(components[i].size, PAGE_SIZE); |
120 | 126 | ||
121 | unsigned int pages = ALIGN_UP(KERNEL_SIZE, PAGE_SIZE) >> PAGE_WIDTH; |
127 | unsigned int pages = ALIGN_UP(KERNEL_SIZE, PAGE_SIZE) >> PAGE_WIDTH; |
122 | 128 | ||
123 | for (i = 0; i < pages; i++) { |
129 | for (i = 0; i < pages; i++) { |
124 | void *pa = ofw_translate(KERNEL_START + (i << PAGE_WIDTH)); |
130 | void *pa = ofw_translate(KERNEL_START + (i << PAGE_WIDTH)); |
125 | fix_overlap(KERNEL_START + (i << PAGE_WIDTH), &pa, "kernel", &top); |
131 | fix_overlap(KERNEL_START + (i << PAGE_WIDTH), &pa, "kernel", &top); |
126 | trans[i] = pa; |
132 | trans[i] = pa; |
127 | } |
133 | } |
128 | 134 | ||
129 | bootinfo.taskmap.count = 0; |
135 | bootinfo.taskmap.count = 0; |
130 | for (i = 1; i < COMPONENTS; i++) { |
136 | for (i = 1; i < COMPONENTS; i++) { |
131 | unsigned int component_pages = ALIGN_UP(components[i].size, PAGE_SIZE) >> PAGE_WIDTH; |
137 | unsigned int component_pages = ALIGN_UP(components[i].size, PAGE_SIZE) >> PAGE_WIDTH; |
132 | unsigned int j; |
138 | unsigned int j; |
133 | 139 | ||
134 | for (j = 0; j < component_pages; j++) { |
140 | for (j = 0; j < component_pages; j++) { |
135 | void *pa = ofw_translate(components[i].start + (j << PAGE_WIDTH)); |
141 | void *pa = ofw_translate(components[i].start + (j << PAGE_WIDTH)); |
136 | fix_overlap(components[i].start + (j << PAGE_WIDTH), &pa, components[i].name, &top); |
142 | fix_overlap(components[i].start + (j << PAGE_WIDTH), &pa, components[i].name, &top); |
137 | trans[pages + j] = pa; |
143 | trans[pages + j] = pa; |
138 | if (j == 0) { |
144 | if (j == 0) { |
139 | bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr = (void *) (pages << PAGE_WIDTH); |
145 | bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr = (void *) (pages << PAGE_WIDTH); |
140 | bootinfo.taskmap.tasks[bootinfo.taskmap.count].size = components[i].size; |
146 | bootinfo.taskmap.tasks[bootinfo.taskmap.count].size = components[i].size; |
141 | bootinfo.taskmap.count++; |
147 | bootinfo.taskmap.count++; |
142 | } |
148 | } |
143 | } |
149 | } |
144 | 150 | ||
145 | pages += component_pages; |
151 | pages += component_pages; |
146 | } |
152 | } |
147 | 153 | ||
148 | fix_overlap(&real_mode, &real_mode_pa, "bootstrap trampoline", &top); |
154 | fix_overlap(&real_mode, &real_mode_pa, "bootstrap trampoline", &top); |
149 | fix_overlap(&trans, &trans_pa, "translation table", &top); |
155 | fix_overlap(&trans, &trans_pa, "translation table", &top); |
150 | fix_overlap(&bootinfo, &bootinfo_pa, "boot info", &top); |
156 | fix_overlap(&bootinfo, &bootinfo_pa, "boot info", &top); |
151 | 157 | ||
152 | printf("\nBooting the kernel...\n"); |
158 | printf("\nBooting the kernel...\n"); |
153 | jump_to_kernel(bootinfo_pa, sizeof(bootinfo), trans_pa, pages << PAGE_WIDTH, real_mode_pa, bootinfo.screen.addr, bootinfo.screen.scanline); |
159 | jump_to_kernel(bootinfo_pa, sizeof(bootinfo), trans_pa, pages << PAGE_WIDTH, real_mode_pa, bootinfo.screen.addr, bootinfo.screen.scanline); |
154 | } |
160 | } |
155 | 161 |