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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 | #include <ofw.h> |
33 | #include <ofw.h> |
34 | #include <align.h> |
34 | #include <align.h> |
35 | 35 | ||
36 | #define HEAP_GAP 1024000 |
36 | #define HEAP_GAP 1024000 |
37 | 37 | ||
38 | bootinfo_t bootinfo; |
38 | bootinfo_t bootinfo; |
39 | 39 | ||
40 | 40 | ||
41 | static void check_align(const void *addr, const char *desc) |
41 | static void check_align(const void *addr, const char *desc) |
42 | { |
42 | { |
43 | if ((unsigned int) addr % PAGE_SIZE != 0) { |
43 | if ((unsigned int) addr % PAGE_SIZE != 0) { |
44 | printf("Error: %s not on page boundary, halting.\n", desc); |
44 | printf("Error: %s not on page boundary, halting.\n", desc); |
45 | halt(); |
45 | halt(); |
46 | } |
46 | } |
47 | } |
47 | } |
48 | 48 | ||
49 | 49 | ||
50 | static void fix_overlap(void *va, void **pa, const char *desc, unsigned int *top) |
50 | static void fix_overlap(void *va, void **pa, const char *desc, unsigned int *top) |
51 | { |
51 | { |
52 | if ((unsigned int) *pa + PAGE_SIZE < *top) { |
52 | if ((unsigned int) *pa + PAGE_SIZE < *top) { |
53 | printf("Warning: %s overlaps kernel physical area\n", desc); |
53 | printf("Warning: %s overlaps kernel physical area\n", desc); |
54 | 54 | ||
55 | void *new_va = (void *) (ALIGN_UP((unsigned int) KERNEL_END + HEAP_GAP, PAGE_SIZE) + *top); |
55 | void *new_va = (void *) (ALIGN_UP((unsigned int) KERNEL_END + HEAP_GAP, PAGE_SIZE) + *top); |
56 | void *new_pa = (void *) (HEAP_GAP + *top); |
56 | void *new_pa = (void *) (HEAP_GAP + *top); |
57 | *top += PAGE_SIZE; |
57 | *top += PAGE_SIZE; |
58 | 58 | ||
59 | if (ofw_map(new_pa, new_va, PAGE_SIZE, 0) != 0) { |
59 | if (ofw_map(new_pa, new_va, PAGE_SIZE, 0) != 0) { |
60 | printf("Error: Unable to map page aligned memory at %L (physical %L), halting.\n", new_va, new_pa); |
60 | printf("Error: Unable to map page aligned memory at %L (physical %L), halting.\n", new_va, new_pa); |
61 | halt(); |
61 | halt(); |
62 | } |
62 | } |
63 | 63 | ||
64 | if ((unsigned int) new_pa + PAGE_SIZE < KERNEL_SIZE) { |
64 | if ((unsigned int) new_pa + PAGE_SIZE < KERNEL_SIZE) { |
65 | printf("Error: %s cannot be relocated, halting.\n", desc); |
65 | printf("Error: %s cannot be relocated, halting.\n", desc); |
66 | halt(); |
66 | halt(); |
67 | } |
67 | } |
68 | 68 | ||
69 | printf("Relocating %L -> %L (physical %L -> %L)\n", va, new_va, *pa, new_pa); |
69 | printf("Relocating %L -> %L (physical %L -> %L)\n", va, new_va, *pa, new_pa); |
70 | *pa = new_pa; |
70 | *pa = new_pa; |
71 | memcpy(new_va, va, PAGE_SIZE); |
71 | memcpy(new_va, va, PAGE_SIZE); |
72 | } |
72 | } |
73 | } |
73 | } |
74 | 74 | ||
75 | char *release = RELEASE; |
75 | char *release = RELEASE; |
76 | 76 | ||
77 | #ifdef REVISION |
77 | #ifdef REVISION |
78 | char *revision = ", revision " REVISION; |
78 | char *revision = ", revision " REVISION; |
79 | #else |
79 | #else |
80 | char *revision = ""; |
80 | char *revision = ""; |
81 | #endif |
81 | #endif |
82 | 82 | ||
83 | #ifdef TIMESTAMP |
83 | #ifdef TIMESTAMP |
84 | char *timestamp = "\nBuilt on " TIMESTAMP; |
84 | char *timestamp = "\nBuilt on " TIMESTAMP; |
85 | #else |
85 | #else |
86 | char *timestamp = ""; |
86 | char *timestamp = ""; |
87 | #endif |
87 | #endif |
88 | 88 | ||
89 | /** Print version information. */ |
89 | /** Print version information. */ |
90 | static void version_print(void) |
90 | static void version_print(void) |
91 | { |
91 | { |
92 | printf("HelenOS PPC32 Bootloader\nRelease %s%s%s\nCopyright (C) 2006 HelenOS project\n", release, revision, timestamp); |
92 | printf("HelenOS PPC32 Bootloader\nRelease %s%s%s\nCopyright (c) 2006 HelenOS project\n", release, revision, timestamp); |
93 | } |
93 | } |
94 | 94 | ||
95 | void bootstrap(void) |
95 | void bootstrap(void) |
96 | { |
96 | { |
97 | version_print(); |
97 | version_print(); |
98 | 98 | ||
99 | init_components(); |
99 | init_components(); |
100 | 100 | ||
101 | unsigned int i; |
101 | unsigned int i; |
102 | 102 | ||
103 | for (i = 0; i < COMPONENTS; i++) |
103 | for (i = 0; i < COMPONENTS; i++) |
104 | check_align(components[i].start, components[i].name); |
104 | check_align(components[i].start, components[i].name); |
105 | 105 | ||
106 | check_align(&real_mode, "bootstrap trampoline"); |
106 | check_align(&real_mode, "bootstrap trampoline"); |
107 | check_align(&trans, "translation table"); |
107 | check_align(&trans, "translation table"); |
108 | 108 | ||
109 | if (!ofw_memmap(&bootinfo.memmap)) { |
109 | if (!ofw_memmap(&bootinfo.memmap)) { |
110 | printf("Error: unable to get memory map, halting.\n"); |
110 | printf("Error: unable to get memory map, halting.\n"); |
111 | halt(); |
111 | halt(); |
112 | } |
112 | } |
113 | 113 | ||
114 | if (bootinfo.memmap.total == 0) { |
114 | if (bootinfo.memmap.total == 0) { |
115 | printf("Error: no memory detected, halting.\n"); |
115 | printf("Error: no memory detected, halting.\n"); |
116 | halt(); |
116 | halt(); |
117 | } |
117 | } |
118 | 118 | ||
119 | if (!ofw_screen(&bootinfo.screen)) { |
119 | if (!ofw_screen(&bootinfo.screen)) { |
120 | printf("Error: unable to get screen properties, halting.\n"); |
120 | printf("Error: unable to get screen properties, halting.\n"); |
121 | halt(); |
121 | halt(); |
122 | } |
122 | } |
123 | 123 | ||
124 | if (!ofw_keyboard(&bootinfo.keyboard)) { |
124 | if (!ofw_keyboard(&bootinfo.keyboard)) { |
125 | printf("Error: unable to get keyboard properties, halting.\n"); |
125 | printf("Error: unable to get keyboard properties, halting.\n"); |
126 | halt(); |
126 | halt(); |
127 | } |
127 | } |
128 | 128 | ||
129 | printf("\nDevice statistics\n"); |
129 | printf("\nDevice statistics\n"); |
130 | 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); |
130 | 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); |
131 | printf(" keyboard at %L (size %d bytes)\n", bootinfo.keyboard.addr, bootinfo.keyboard.size); |
131 | printf(" keyboard at %L (size %d bytes)\n", bootinfo.keyboard.addr, bootinfo.keyboard.size); |
132 | 132 | ||
133 | void *real_mode_pa = ofw_translate(&real_mode); |
133 | void *real_mode_pa = ofw_translate(&real_mode); |
134 | void *trans_pa = ofw_translate(&trans); |
134 | void *trans_pa = ofw_translate(&trans); |
135 | void *bootinfo_pa = ofw_translate(&bootinfo); |
135 | void *bootinfo_pa = ofw_translate(&bootinfo); |
136 | 136 | ||
137 | printf("\nMemory statistics (total %d MB)\n", bootinfo.memmap.total >> 20); |
137 | printf("\nMemory statistics (total %d MB)\n", bootinfo.memmap.total >> 20); |
138 | printf(" %L: boot info structure (physical %L)\n", &bootinfo, bootinfo_pa); |
138 | printf(" %L: boot info structure (physical %L)\n", &bootinfo, bootinfo_pa); |
139 | printf(" %L: bootstrap trampoline (physical %L)\n", &real_mode, real_mode_pa); |
139 | printf(" %L: bootstrap trampoline (physical %L)\n", &real_mode, real_mode_pa); |
140 | printf(" %L: translation table (physical %L)\n", &trans, trans_pa); |
140 | printf(" %L: translation table (physical %L)\n", &trans, trans_pa); |
141 | for (i = 0; i < COMPONENTS; i++) |
141 | for (i = 0; i < COMPONENTS; i++) |
142 | printf(" %L: %s image (size %d bytes)\n", components[i].start, components[i].name, components[i].size); |
142 | printf(" %L: %s image (size %d bytes)\n", components[i].start, components[i].name, components[i].size); |
143 | 143 | ||
144 | unsigned int top = 0; |
144 | unsigned int top = 0; |
145 | for (i = 0; i < COMPONENTS; i++) |
145 | for (i = 0; i < COMPONENTS; i++) |
146 | top += ALIGN_UP(components[i].size, PAGE_SIZE); |
146 | top += ALIGN_UP(components[i].size, PAGE_SIZE); |
147 | 147 | ||
148 | unsigned int pages = ALIGN_UP(KERNEL_SIZE, PAGE_SIZE) >> PAGE_WIDTH; |
148 | unsigned int pages = ALIGN_UP(KERNEL_SIZE, PAGE_SIZE) >> PAGE_WIDTH; |
149 | 149 | ||
150 | for (i = 0; i < pages; i++) { |
150 | for (i = 0; i < pages; i++) { |
151 | void *pa = ofw_translate(KERNEL_START + (i << PAGE_WIDTH)); |
151 | void *pa = ofw_translate(KERNEL_START + (i << PAGE_WIDTH)); |
152 | fix_overlap(KERNEL_START + (i << PAGE_WIDTH), &pa, "kernel", &top); |
152 | fix_overlap(KERNEL_START + (i << PAGE_WIDTH), &pa, "kernel", &top); |
153 | trans[i] = pa; |
153 | trans[i] = pa; |
154 | } |
154 | } |
155 | 155 | ||
156 | bootinfo.taskmap.count = 0; |
156 | bootinfo.taskmap.count = 0; |
157 | for (i = 1; i < COMPONENTS; i++) { |
157 | for (i = 1; i < COMPONENTS; i++) { |
158 | unsigned int component_pages = ALIGN_UP(components[i].size, PAGE_SIZE) >> PAGE_WIDTH; |
158 | unsigned int component_pages = ALIGN_UP(components[i].size, PAGE_SIZE) >> PAGE_WIDTH; |
159 | unsigned int j; |
159 | unsigned int j; |
160 | 160 | ||
161 | for (j = 0; j < component_pages; j++) { |
161 | for (j = 0; j < component_pages; j++) { |
162 | void *pa = ofw_translate(components[i].start + (j << PAGE_WIDTH)); |
162 | void *pa = ofw_translate(components[i].start + (j << PAGE_WIDTH)); |
163 | fix_overlap(components[i].start + (j << PAGE_WIDTH), &pa, components[i].name, &top); |
163 | fix_overlap(components[i].start + (j << PAGE_WIDTH), &pa, components[i].name, &top); |
164 | trans[pages + j] = pa; |
164 | trans[pages + j] = pa; |
165 | if (j == 0) { |
165 | if (j == 0) { |
166 | bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr = (void *) (pages << PAGE_WIDTH); |
166 | bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr = (void *) (pages << PAGE_WIDTH); |
167 | bootinfo.taskmap.tasks[bootinfo.taskmap.count].size = components[i].size; |
167 | bootinfo.taskmap.tasks[bootinfo.taskmap.count].size = components[i].size; |
168 | bootinfo.taskmap.count++; |
168 | bootinfo.taskmap.count++; |
169 | } |
169 | } |
170 | } |
170 | } |
171 | 171 | ||
172 | pages += component_pages; |
172 | pages += component_pages; |
173 | } |
173 | } |
174 | 174 | ||
175 | fix_overlap(&real_mode, &real_mode_pa, "bootstrap trampoline", &top); |
175 | fix_overlap(&real_mode, &real_mode_pa, "bootstrap trampoline", &top); |
176 | fix_overlap(&trans, &trans_pa, "translation table", &top); |
176 | fix_overlap(&trans, &trans_pa, "translation table", &top); |
177 | fix_overlap(&bootinfo, &bootinfo_pa, "boot info", &top); |
177 | fix_overlap(&bootinfo, &bootinfo_pa, "boot info", &top); |
178 | 178 | ||
179 | printf("\nBooting the kernel...\n"); |
179 | printf("\nBooting the kernel...\n"); |
180 | jump_to_kernel(bootinfo_pa, sizeof(bootinfo), trans_pa, pages << PAGE_WIDTH, real_mode_pa, (void *) bootinfo.screen.addr, bootinfo.screen.scanline); |
180 | jump_to_kernel(bootinfo_pa, sizeof(bootinfo), trans_pa, pages << PAGE_WIDTH, real_mode_pa, (void *) bootinfo.screen.addr, bootinfo.screen.scanline); |
181 | } |
181 | } |
182 | 182 |