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1 | /* |
1 | /* |
2 | * Copyright (c) 2005 Martin Decky |
2 | * Copyright (c) 2005 Martin Decky |
3 | * Copyright (c) 2006 Jakub Jermar |
3 | * Copyright (c) 2006 Jakub Jermar |
4 | * All rights reserved. |
4 | * All rights reserved. |
5 | * |
5 | * |
6 | * Redistribution and use in source and binary forms, with or without |
6 | * Redistribution and use in source and binary forms, with or without |
7 | * modification, are permitted provided that the following conditions |
7 | * modification, are permitted provided that the following conditions |
8 | * are met: |
8 | * are met: |
9 | * |
9 | * |
10 | * - Redistributions of source code must retain the above copyright |
10 | * - Redistributions of source code must retain the above copyright |
11 | * notice, this list of conditions and the following disclaimer. |
11 | * notice, this list of conditions and the following disclaimer. |
12 | * - Redistributions in binary form must reproduce the above copyright |
12 | * - Redistributions in binary form must reproduce the above copyright |
13 | * notice, this list of conditions and the following disclaimer in the |
13 | * notice, this list of conditions and the following disclaimer in the |
14 | * documentation and/or other materials provided with the distribution. |
14 | * documentation and/or other materials provided with the distribution. |
15 | * - The name of the author may not be used to endorse or promote products |
15 | * - The name of the author may not be used to endorse or promote products |
16 | * derived from this software without specific prior written permission. |
16 | * derived from this software without specific prior written permission. |
17 | * |
17 | * |
18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
28 | */ |
28 | */ |
29 | 29 | ||
30 | #include "main.h" |
30 | #include "main.h" |
31 | #include <printf.h> |
31 | #include <printf.h> |
32 | #include "asm.h" |
32 | #include "asm.h" |
33 | #include "_components.h" |
33 | #include "_components.h" |
34 | #include <balloc.h> |
34 | #include <balloc.h> |
35 | #include <ofw.h> |
35 | #include <ofw.h> |
36 | #include <ofw_tree.h> |
36 | #include <ofw_tree.h> |
37 | #include "ofwarch.h" |
37 | #include "ofwarch.h" |
38 | #include <align.h> |
38 | #include <align.h> |
39 | #include <string.h> |
39 | #include <string.h> |
40 | 40 | ||
41 | bootinfo_t bootinfo; |
41 | bootinfo_t bootinfo; |
42 | component_t components[COMPONENTS]; |
42 | component_t components[COMPONENTS]; |
43 | 43 | ||
44 | char *release = RELEASE; |
44 | char *release = RELEASE; |
45 | 45 | ||
46 | #ifdef REVISION |
46 | #ifdef REVISION |
47 | char *revision = ", revision " REVISION; |
47 | char *revision = ", revision " REVISION; |
48 | #else |
48 | #else |
49 | char *revision = ""; |
49 | char *revision = ""; |
50 | #endif |
50 | #endif |
51 | 51 | ||
52 | #ifdef TIMESTAMP |
52 | #ifdef TIMESTAMP |
53 | char *timestamp = "\nBuilt on " TIMESTAMP; |
53 | char *timestamp = "\nBuilt on " TIMESTAMP; |
54 | #else |
54 | #else |
55 | char *timestamp = ""; |
55 | char *timestamp = ""; |
56 | #endif |
56 | #endif |
57 | 57 | ||
58 | /** Print version information. */ |
58 | /** Print version information. */ |
59 | static void version_print(void) |
59 | static void version_print(void) |
60 | { |
60 | { |
61 | printf("HelenOS SPARC64 Bootloader\nRelease %s%s%s\n" |
61 | printf("HelenOS SPARC64 Bootloader\nRelease %s%s%s\n" |
62 | "Copyright (c) 2006 HelenOS project\n", |
62 | "Copyright (c) 2006 HelenOS project\n", |
63 | release, revision, timestamp); |
63 | release, revision, timestamp); |
64 | } |
64 | } |
65 | 65 | ||
66 | void bootstrap(void) |
66 | void bootstrap(void) |
67 | { |
67 | { |
68 | void *base = (void *) KERNEL_VIRTUAL_ADDRESS; |
68 | void *base = (void *) KERNEL_VIRTUAL_ADDRESS; |
69 | void *balloc_base; |
69 | void *balloc_base; |
70 | unsigned int top = 0; |
70 | unsigned int top = 0; |
71 | int i, j; |
71 | int i, j; |
72 | 72 | ||
73 | version_print(); |
73 | version_print(); |
74 | 74 | ||
75 | init_components(components); |
75 | init_components(components); |
76 | 76 | ||
77 | if (!ofw_get_physmem_start(&bootinfo.physmem_start)) { |
77 | if (!ofw_get_physmem_start(&bootinfo.physmem_start)) { |
78 | printf("Error: unable to get start of physical memory.\n"); |
78 | printf("Error: unable to get start of physical memory.\n"); |
79 | halt(); |
79 | halt(); |
80 | } |
80 | } |
81 | 81 | ||
82 | if (!ofw_memmap(&bootinfo.memmap)) { |
82 | if (!ofw_memmap(&bootinfo.memmap)) { |
83 | printf("Error: unable to get memory map, halting.\n"); |
83 | printf("Error: unable to get memory map, halting.\n"); |
84 | halt(); |
84 | halt(); |
85 | } |
85 | } |
86 | 86 | ||
87 | if (bootinfo.memmap.total == 0) { |
87 | if (bootinfo.memmap.total == 0) { |
88 | printf("Error: no memory detected, halting.\n"); |
88 | printf("Error: no memory detected, halting.\n"); |
89 | halt(); |
89 | halt(); |
90 | } |
90 | } |
91 | 91 | ||
92 | /* |
92 | /* |
93 | * SILO for some reason adds 0x400000 and subtracts |
93 | * SILO for some reason adds 0x400000 and subtracts |
94 | * bootinfo.physmem_start to/from silo_ramdisk_image. |
94 | * bootinfo.physmem_start to/from silo_ramdisk_image. |
95 | * We just need plain physical address so we fix it up. |
95 | * We just need plain physical address so we fix it up. |
96 | */ |
96 | */ |
97 | if (silo_ramdisk_image) { |
97 | if (silo_ramdisk_image) { |
98 | silo_ramdisk_image += bootinfo.physmem_start; |
98 | silo_ramdisk_image += bootinfo.physmem_start; |
99 | silo_ramdisk_image -= 0x400000; |
99 | silo_ramdisk_image -= 0x400000; |
100 | /* Install 1:1 mapping for the ramdisk. */ |
100 | /* Install 1:1 mapping for the ramdisk. */ |
101 | if (ofw_map((void *)((uintptr_t)silo_ramdisk_image), |
101 | if (ofw_map((void *)((uintptr_t)silo_ramdisk_image), |
102 | (void *)((uintptr_t)silo_ramdisk_image), |
102 | (void *)((uintptr_t)silo_ramdisk_image), |
103 | silo_ramdisk_size, -1) != 0) { |
103 | silo_ramdisk_size, -1) != 0) { |
104 | printf("Failed to map ramdisk.\n"); |
104 | printf("Failed to map ramdisk.\n"); |
105 | halt(); |
105 | halt(); |
106 | } |
106 | } |
107 | } |
107 | } |
108 | 108 | ||
109 | printf("\nSystem info\n"); |
109 | printf("\nSystem info\n"); |
110 | printf(" memory: %dM starting at %P\n", |
110 | printf(" memory: %dM starting at %P\n", |
111 | bootinfo.memmap.total >> 20, bootinfo.physmem_start); |
111 | bootinfo.memmap.total >> 20, bootinfo.physmem_start); |
112 | 112 | ||
113 | printf("\nMemory statistics\n"); |
113 | printf("\nMemory statistics\n"); |
114 | printf(" kernel entry point at %P\n", KERNEL_VIRTUAL_ADDRESS); |
114 | printf(" kernel entry point at %P\n", KERNEL_VIRTUAL_ADDRESS); |
115 | printf(" %P: boot info structure\n", &bootinfo); |
115 | printf(" %P: boot info structure\n", &bootinfo); |
116 | 116 | ||
117 | /* |
117 | /* |
118 | * Figure out destination address for each component. |
118 | * Figure out destination address for each component. |
119 | * In this phase, we don't copy the components yet because we want to |
119 | * In this phase, we don't copy the components yet because we want to |
120 | * to be careful not to overwrite anything, especially the components |
120 | * to be careful not to overwrite anything, especially the components |
121 | * which haven't been copied yet. |
121 | * which haven't been copied yet. |
122 | */ |
122 | */ |
123 | bootinfo.taskmap.count = 0; |
123 | bootinfo.taskmap.count = 0; |
124 | for (i = 0; i < COMPONENTS; i++) { |
124 | for (i = 0; i < COMPONENTS; i++) { |
125 | printf(" %P: %s image (size %d bytes)\n", components[i].start, |
125 | printf(" %P: %s image (size %d bytes)\n", components[i].start, |
126 | components[i].name, components[i].size); |
126 | components[i].name, components[i].size); |
127 | top = ALIGN_UP(top, PAGE_SIZE); |
127 | top = ALIGN_UP(top, PAGE_SIZE); |
128 | if (i > 0) { |
128 | if (i > 0) { |
129 | if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) { |
129 | if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) { |
130 | printf("Skipping superfluous components.\n"); |
130 | printf("Skipping superfluous components.\n"); |
131 | break; |
131 | break; |
132 | } |
132 | } |
133 | bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr = |
133 | bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr = |
134 | base + top; |
134 | base + top; |
135 | bootinfo.taskmap.tasks[bootinfo.taskmap.count].size = |
135 | bootinfo.taskmap.tasks[bootinfo.taskmap.count].size = |
136 | components[i].size; |
136 | components[i].size; |
137 | bootinfo.taskmap.count++; |
137 | bootinfo.taskmap.count++; |
138 | } |
138 | } |
139 | top += components[i].size; |
139 | top += components[i].size; |
140 | } |
140 | } |
141 | 141 | ||
142 | j = bootinfo.taskmap.count - 1; /* do not consider ramdisk */ |
142 | j = bootinfo.taskmap.count - 1; /* do not consider ramdisk */ |
143 | 143 | ||
144 | if (silo_ramdisk_image) { |
144 | if (silo_ramdisk_image) { |
145 | /* Treat the ramdisk as the last bootinfo task. */ |
145 | /* Treat the ramdisk as the last bootinfo task. */ |
146 | if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) { |
146 | if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) { |
147 | printf("Skipping ramdisk.\n"); |
147 | printf("Skipping ramdisk.\n"); |
148 | goto skip_ramdisk; |
148 | goto skip_ramdisk; |
149 | } |
149 | } |
150 | top = ALIGN_UP(top, PAGE_SIZE); |
150 | top = ALIGN_UP(top, PAGE_SIZE); |
151 | bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr = |
151 | bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr = |
152 | base + top; |
152 | base + top; |
153 | bootinfo.taskmap.tasks[bootinfo.taskmap.count].size = |
153 | bootinfo.taskmap.tasks[bootinfo.taskmap.count].size = |
154 | silo_ramdisk_size; |
154 | silo_ramdisk_size; |
155 | bootinfo.taskmap.count++; |
155 | bootinfo.taskmap.count++; |
156 | printf("\nCopying ramdisk..."); |
156 | printf("\nCopying ramdisk..."); |
157 | /* |
157 | /* |
158 | * Claim and map the whole ramdisk as it may exceed the area |
158 | * Claim and map the whole ramdisk as it may exceed the area |
159 | * given to us by SILO. |
159 | * given to us by SILO. |
160 | */ |
160 | */ |
161 | (void) ofw_claim_phys(base + top, silo_ramdisk_size); |
161 | (void) ofw_claim_phys(base + top, silo_ramdisk_size); |
162 | (void) ofw_map(base + top, base + top, silo_ramdisk_size, -1); |
162 | (void) ofw_map(base + top, base + top, silo_ramdisk_size, -1); |
163 | memmove(base + top, (void *)((uintptr_t)silo_ramdisk_image), |
163 | memmove(base + top, (void *)((uintptr_t)silo_ramdisk_image), |
164 | silo_ramdisk_size); |
164 | silo_ramdisk_size); |
165 | printf("done.\n"); |
165 | printf("done.\n"); |
166 | top += silo_ramdisk_size; |
166 | top += silo_ramdisk_size; |
167 | } |
167 | } |
168 | skip_ramdisk: |
168 | skip_ramdisk: |
169 | 169 | ||
170 | /* |
170 | /* |
171 | * Now we can proceed to copy the components. We do it in reverse order |
171 | * Now we can proceed to copy the components. We do it in reverse order |
172 | * so that we don't overwrite anything even if the components overlap |
172 | * so that we don't overwrite anything even if the components overlap |
173 | * with base. |
173 | * with base. |
174 | */ |
174 | */ |
175 | printf("\nCopying bootinfo tasks\n"); |
175 | printf("\nCopying bootinfo tasks\n"); |
176 | for (i = COMPONENTS - 1; i > 0; i--, j--) { |
176 | for (i = COMPONENTS - 1; i > 0; i--, j--) { |
177 | printf(" %s...", components[i].name); |
177 | printf(" %s...", components[i].name); |
178 | 178 | ||
179 | /* |
179 | /* |
180 | * At this point, we claim the physical memory that we are |
180 | * At this point, we claim the physical memory that we are |
181 | * going to use. We should be safe in case of the virtual |
181 | * going to use. We should be safe in case of the virtual |
182 | * address space because the OpenFirmware, according to its |
182 | * address space because the OpenFirmware, according to its |
183 | * SPARC binding, should restrict its use of virtual memory |
183 | * SPARC binding, should restrict its use of virtual memory |
184 | * to addresses from [0xffd00000; 0xffefffff] and |
184 | * to addresses from [0xffd00000; 0xffefffff] and |
185 | * [0xfe000000; 0xfeffffff]. |
185 | * [0xfe000000; 0xfeffffff]. |
186 | * |
186 | * |
187 | * XXX We don't map this piece of memory. We simply rely on |
187 | * XXX We don't map this piece of memory. We simply rely on |
188 | * SILO to have it done for us already in this case. |
188 | * SILO to have it done for us already in this case. |
189 | */ |
189 | */ |
190 | (void) ofw_claim_phys(bootinfo.physmem_start + |
190 | (void) ofw_claim_phys(bootinfo.physmem_start + |
191 | bootinfo.taskmap.tasks[j].addr, |
191 | bootinfo.taskmap.tasks[j].addr, |
192 | ALIGN_UP(components[i].size, PAGE_SIZE)); |
192 | ALIGN_UP(components[i].size, PAGE_SIZE)); |
193 | 193 | ||
194 | memcpy((void *)bootinfo.taskmap.tasks[j].addr, |
194 | memcpy((void *)bootinfo.taskmap.tasks[j].addr, |
195 | components[i].start, components[i].size); |
195 | components[i].start, components[i].size); |
196 | printf("done.\n"); |
196 | printf("done.\n"); |
197 | } |
197 | } |
198 | 198 | ||
199 | printf("\nCopying kernel..."); |
199 | printf("\nCopying kernel..."); |
200 | (void) ofw_claim_phys(bootinfo.physmem_start + base, |
200 | (void) ofw_claim_phys(bootinfo.physmem_start + base, |
201 | ALIGN_UP(components[0].size, PAGE_SIZE)); |
201 | ALIGN_UP(components[0].size, PAGE_SIZE)); |
202 | memcpy(base, components[0].start, components[0].size); |
202 | memcpy(base, components[0].start, components[0].size); |
203 | printf("done.\n"); |
203 | printf("done.\n"); |
204 | 204 | ||
205 | /* |
205 | /* |
206 | * Claim and map the physical memory for the boot allocator. |
206 | * Claim and map the physical memory for the boot allocator. |
207 | * Initialize the boot allocator. |
207 | * Initialize the boot allocator. |
208 | */ |
208 | */ |
209 | balloc_base = base + ALIGN_UP(top, PAGE_SIZE); |
209 | balloc_base = base + ALIGN_UP(top, PAGE_SIZE); |
210 | (void) ofw_claim_phys(bootinfo.physmem_start + balloc_base, |
210 | (void) ofw_claim_phys(bootinfo.physmem_start + balloc_base, |
211 | BALLOC_MAX_SIZE); |
211 | BALLOC_MAX_SIZE); |
212 | (void) ofw_map(balloc_base, balloc_base, BALLOC_MAX_SIZE, -1); |
212 | (void) ofw_map(balloc_base, balloc_base, BALLOC_MAX_SIZE, -1); |
213 | balloc_init(&bootinfo.ballocs, (uintptr_t)balloc_base); |
213 | balloc_init(&bootinfo.ballocs, (uintptr_t)balloc_base); |
214 | 214 | ||
215 | printf("\nCanonizing OpenFirmware device tree..."); |
215 | printf("\nCanonizing OpenFirmware device tree..."); |
216 | bootinfo.ofw_root = ofw_tree_build(); |
216 | bootinfo.ofw_root = ofw_tree_build(); |
217 | printf("done.\n"); |
217 | printf("done.\n"); |
218 | 218 | ||
219 | #ifdef CONFIG_SMP |
219 | #ifdef CONFIG_SMP |
220 | printf("\nChecking for secondary processors..."); |
220 | printf("\nChecking for secondary processors..."); |
221 | if (!ofw_cpu()) |
221 | if (!ofw_cpu()) |
222 | printf("Error: unable to get CPU properties\n"); |
222 | printf("Error: unable to get CPU properties\n"); |
223 | printf("done.\n"); |
223 | printf("done.\n"); |
224 | #endif |
224 | #endif |
225 | 225 | ||
226 | printf("\nBooting the kernel...\n"); |
226 | printf("\nBooting the kernel...\n"); |
227 | jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS, |
227 | jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS, |
228 | bootinfo.physmem_start | BSP_PROCESSOR, &bootinfo, |
228 | bootinfo.physmem_start | BSP_PROCESSOR, &bootinfo, |
229 | sizeof(bootinfo)); |
229 | sizeof(bootinfo)); |
230 | } |
230 | } |
231 | 231 | ||
232 | 232 |