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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 | 39 | ||
40 | bootinfo_t bootinfo; |
40 | bootinfo_t bootinfo; |
- | 41 | ||
41 | component_t components[COMPONENTS]; |
42 | component_t components[COMPONENTS]; |
42 | 43 | ||
43 | char *release = RELEASE; |
44 | char *release = RELEASE; |
44 | 45 | ||
45 | #ifdef REVISION |
46 | #ifdef REVISION |
46 | char *revision = ", revision " REVISION; |
47 | char *revision = ", revision " REVISION; |
47 | #else |
48 | #else |
48 | char *revision = ""; |
49 | char *revision = ""; |
49 | #endif |
50 | #endif |
50 | 51 | ||
51 | #ifdef TIMESTAMP |
52 | #ifdef TIMESTAMP |
52 | char *timestamp = "\nBuilt on " TIMESTAMP; |
53 | char *timestamp = "\nBuilt on " TIMESTAMP; |
53 | #else |
54 | #else |
54 | char *timestamp = ""; |
55 | char *timestamp = ""; |
55 | #endif |
56 | #endif |
56 | 57 | ||
- | 58 | /** UltraSPARC subarchitecture - 1 for US, 3 for US3 */ |
|
- | 59 | uint8_t subarchitecture; |
|
- | 60 | ||
- | 61 | /** |
|
- | 62 | * mask of the MID field inside the ICBUS_CONFIG register shifted by |
|
- | 63 | * MID_SHIFT bits to the right |
|
- | 64 | */ |
|
- | 65 | uint16_t mid_mask; |
|
- | 66 | ||
57 | /** Print version information. */ |
67 | /** Print version information. */ |
58 | static void version_print(void) |
68 | static void version_print(void) |
59 | { |
69 | { |
60 | printf("HelenOS SPARC64 Bootloader\nRelease %s%s%s\n" |
70 | printf("HelenOS SPARC64 Bootloader\nRelease %s%s%s\n" |
61 | "Copyright (c) 2006 HelenOS project\n", |
71 | "Copyright (c) 2006 HelenOS project\n", |
62 | release, revision, timestamp); |
72 | release, revision, timestamp); |
63 | } |
73 | } |
64 | 74 | ||
- | 75 | /* the lowest ID (read from the VER register) of some US3 CPU model */ |
|
- | 76 | #define FIRST_US3_CPU 0x14 |
|
- | 77 | ||
- | 78 | /* the greatest ID (read from the VER register) of some US3 CPU model */ |
|
- | 79 | #define LAST_US3_CPU 0x19 |
|
- | 80 | ||
- | 81 | /* UltraSPARC IIIi processor implementation code */ |
|
- | 82 | #define US_IIIi_CODE 0x15 |
|
- | 83 | ||
- | 84 | /** |
|
- | 85 | * Sets the global variables "subarchitecture" and "mid_mask" to |
|
- | 86 | * correct values. |
|
- | 87 | */ |
|
- | 88 | static void detect_subarchitecture(void) |
|
- | 89 | { |
|
- | 90 | uint64_t v; |
|
- | 91 | asm volatile ("rdpr %%ver, %0\n" : "=r" (v)); |
|
- | 92 | ||
- | 93 | v = (v << 16) >> 48; |
|
- | 94 | if ((v >= FIRST_US3_CPU) && (v <= LAST_US3_CPU)) { |
|
- | 95 | subarchitecture = SUBARCH_US3; |
|
- | 96 | if (v == US_IIIi_CODE) |
|
- | 97 | mid_mask = (1 << 5) - 1; |
|
- | 98 | else |
|
- | 99 | mid_mask = (1 << 10) - 1; |
|
- | 100 | } else if (v < FIRST_US3_CPU) { |
|
- | 101 | subarchitecture = SUBARCH_US; |
|
- | 102 | mid_mask = (1 << 5) - 1; |
|
- | 103 | } else { |
|
- | 104 | printf("\nThis CPU is not supported by HelenOS."); |
|
- | 105 | } |
|
- | 106 | } |
|
- | 107 | ||
65 | void bootstrap(void) |
108 | void bootstrap(void) |
66 | { |
109 | { |
67 | void *base = (void *) KERNEL_VIRTUAL_ADDRESS; |
110 | void *base = (void *) KERNEL_VIRTUAL_ADDRESS; |
68 | void *balloc_base; |
111 | void *balloc_base; |
69 | unsigned int top = 0; |
112 | unsigned int top = 0; |
70 | int i, j; |
113 | int i, j; |
71 | 114 | ||
72 | version_print(); |
115 | version_print(); |
73 | 116 | ||
- | 117 | detect_subarchitecture(); |
|
74 | init_components(components); |
118 | init_components(components); |
75 | 119 | ||
76 | if (!ofw_get_physmem_start(&bootinfo.physmem_start)) { |
120 | if (!ofw_get_physmem_start(&bootinfo.physmem_start)) { |
77 | printf("Error: unable to get start of physical memory.\n"); |
121 | printf("Error: unable to get start of physical memory.\n"); |
78 | halt(); |
122 | halt(); |
79 | } |
123 | } |
80 | 124 | ||
81 | if (!ofw_memmap(&bootinfo.memmap)) { |
125 | if (!ofw_memmap(&bootinfo.memmap)) { |
82 | printf("Error: unable to get memory map, halting.\n"); |
126 | printf("Error: unable to get memory map, halting.\n"); |
83 | halt(); |
127 | halt(); |
84 | } |
128 | } |
85 | 129 | ||
86 | if (bootinfo.memmap.total == 0) { |
130 | if (bootinfo.memmap.total == 0) { |
87 | printf("Error: no memory detected, halting.\n"); |
131 | printf("Error: no memory detected, halting.\n"); |
88 | halt(); |
132 | halt(); |
89 | } |
133 | } |
90 | 134 | ||
91 | /* |
135 | /* |
92 | * SILO for some reason adds 0x400000 and subtracts |
136 | * SILO for some reason adds 0x400000 and subtracts |
93 | * bootinfo.physmem_start to/from silo_ramdisk_image. |
137 | * bootinfo.physmem_start to/from silo_ramdisk_image. |
94 | * We just need plain physical address so we fix it up. |
138 | * We just need plain physical address so we fix it up. |
95 | */ |
139 | */ |
96 | if (silo_ramdisk_image) { |
140 | if (silo_ramdisk_image) { |
97 | silo_ramdisk_image += bootinfo.physmem_start; |
141 | silo_ramdisk_image += bootinfo.physmem_start; |
98 | silo_ramdisk_image -= 0x400000; |
142 | silo_ramdisk_image -= 0x400000; |
99 | /* Install 1:1 mapping for the ramdisk. */ |
143 | /* Install 1:1 mapping for the ramdisk. */ |
100 | if (ofw_map((void *)((uintptr_t)silo_ramdisk_image), |
144 | if (ofw_map((void *)((uintptr_t)silo_ramdisk_image), |
101 | (void *)((uintptr_t)silo_ramdisk_image), |
145 | (void *)((uintptr_t)silo_ramdisk_image), |
102 | silo_ramdisk_size, -1) != 0) { |
146 | silo_ramdisk_size, -1) != 0) { |
103 | printf("Failed to map ramdisk.\n"); |
147 | printf("Failed to map ramdisk.\n"); |
104 | halt(); |
148 | halt(); |
105 | } |
149 | } |
106 | } |
150 | } |
107 | 151 | ||
108 | printf("\nSystem info\n"); |
152 | printf("\nSystem info\n"); |
109 | printf(" memory: %dM starting at %P\n", |
153 | printf(" memory: %dM starting at %P\n", |
110 | bootinfo.memmap.total >> 20, bootinfo.physmem_start); |
154 | bootinfo.memmap.total >> 20, bootinfo.physmem_start); |
111 | 155 | ||
112 | printf("\nMemory statistics\n"); |
156 | printf("\nMemory statistics\n"); |
113 | printf(" kernel entry point at %P\n", KERNEL_VIRTUAL_ADDRESS); |
157 | printf(" kernel entry point at %P\n", KERNEL_VIRTUAL_ADDRESS); |
114 | printf(" %P: boot info structure\n", &bootinfo); |
158 | printf(" %P: boot info structure\n", &bootinfo); |
115 | 159 | ||
116 | /* |
160 | /* |
117 | * Figure out destination address for each component. |
161 | * Figure out destination address for each component. |
118 | * In this phase, we don't copy the components yet because we want to |
162 | * In this phase, we don't copy the components yet because we want to |
119 | * to be careful not to overwrite anything, especially the components |
163 | * to be careful not to overwrite anything, especially the components |
120 | * which haven't been copied yet. |
164 | * which haven't been copied yet. |
121 | */ |
165 | */ |
122 | bootinfo.taskmap.count = 0; |
166 | bootinfo.taskmap.count = 0; |
123 | for (i = 0; i < COMPONENTS; i++) { |
167 | for (i = 0; i < COMPONENTS; i++) { |
124 | printf(" %P: %s image (size %d bytes)\n", components[i].start, |
168 | printf(" %P: %s image (size %d bytes)\n", components[i].start, |
125 | components[i].name, components[i].size); |
169 | components[i].name, components[i].size); |
126 | top = ALIGN_UP(top, PAGE_SIZE); |
170 | top = ALIGN_UP(top, PAGE_SIZE); |
127 | if (i > 0) { |
171 | if (i > 0) { |
128 | if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) { |
172 | if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) { |
129 | printf("Skipping superfluous components.\n"); |
173 | printf("Skipping superfluous components.\n"); |
130 | break; |
174 | break; |
131 | } |
175 | } |
132 | bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr = |
176 | bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr = |
133 | base + top; |
177 | base + top; |
134 | bootinfo.taskmap.tasks[bootinfo.taskmap.count].size = |
178 | bootinfo.taskmap.tasks[bootinfo.taskmap.count].size = |
135 | components[i].size; |
179 | components[i].size; |
136 | bootinfo.taskmap.count++; |
180 | bootinfo.taskmap.count++; |
137 | } |
181 | } |
138 | top += components[i].size; |
182 | top += components[i].size; |
139 | } |
183 | } |
140 | 184 | ||
141 | j = bootinfo.taskmap.count - 1; /* do not consider ramdisk */ |
185 | j = bootinfo.taskmap.count - 1; /* do not consider ramdisk */ |
142 | 186 | ||
143 | if (silo_ramdisk_image) { |
187 | if (silo_ramdisk_image) { |
144 | /* Treat the ramdisk as the last bootinfo task. */ |
188 | /* Treat the ramdisk as the last bootinfo task. */ |
145 | if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) { |
189 | if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) { |
146 | printf("Skipping ramdisk.\n"); |
190 | printf("Skipping ramdisk.\n"); |
147 | goto skip_ramdisk; |
191 | goto skip_ramdisk; |
148 | } |
192 | } |
149 | top = ALIGN_UP(top, PAGE_SIZE); |
193 | top = ALIGN_UP(top, PAGE_SIZE); |
150 | bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr = |
194 | bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr = |
151 | base + top; |
195 | base + top; |
152 | bootinfo.taskmap.tasks[bootinfo.taskmap.count].size = |
196 | bootinfo.taskmap.tasks[bootinfo.taskmap.count].size = |
153 | silo_ramdisk_size; |
197 | silo_ramdisk_size; |
154 | bootinfo.taskmap.count++; |
198 | bootinfo.taskmap.count++; |
155 | printf("\nCopying ramdisk..."); |
199 | printf("\nCopying ramdisk..."); |
156 | /* |
200 | /* |
157 | * Claim and map the whole ramdisk as it may exceed the area |
201 | * Claim and map the whole ramdisk as it may exceed the area |
158 | * given to us by SILO. |
202 | * given to us by SILO. |
159 | */ |
203 | */ |
160 | (void) ofw_claim_phys(base + top, silo_ramdisk_size); |
204 | (void) ofw_claim_phys(base + top, silo_ramdisk_size); |
161 | (void) ofw_map(base + top, base + top, silo_ramdisk_size, -1); |
205 | (void) ofw_map(base + top, base + top, silo_ramdisk_size, -1); |
162 | /* |
206 | /* |
163 | * FIXME If the source and destination overlap, it may be |
207 | * FIXME If the source and destination overlap, it may be |
164 | * desirable to copy in reverse order, depending on how the two |
208 | * desirable to copy in reverse order, depending on how the two |
165 | * regions overlap. |
209 | * regions overlap. |
166 | */ |
210 | */ |
167 | memcpy(base + top, (void *)((uintptr_t)silo_ramdisk_image), |
211 | memcpy(base + top, (void *)((uintptr_t)silo_ramdisk_image), |
168 | silo_ramdisk_size); |
212 | silo_ramdisk_size); |
169 | printf("done.\n"); |
213 | printf("done.\n"); |
170 | top += silo_ramdisk_size; |
214 | top += silo_ramdisk_size; |
171 | } |
215 | } |
172 | skip_ramdisk: |
216 | skip_ramdisk: |
173 | 217 | ||
174 | /* |
218 | /* |
175 | * Now we can proceed to copy the components. We do it in reverse order |
219 | * Now we can proceed to copy the components. We do it in reverse order |
176 | * so that we don't overwrite anything even if the components overlap |
220 | * so that we don't overwrite anything even if the components overlap |
177 | * with base. |
221 | * with base. |
178 | */ |
222 | */ |
179 | printf("\nCopying bootinfo tasks\n"); |
223 | printf("\nCopying bootinfo tasks\n"); |
180 | for (i = COMPONENTS - 1; i > 0; i--, j--) { |
224 | for (i = COMPONENTS - 1; i > 0; i--, j--) { |
181 | printf(" %s...", components[i].name); |
225 | printf(" %s...", components[i].name); |
182 | 226 | ||
183 | /* |
227 | /* |
184 | * At this point, we claim the physical memory that we are |
228 | * At this point, we claim the physical memory that we are |
185 | * going to use. We should be safe in case of the virtual |
229 | * going to use. We should be safe in case of the virtual |
186 | * address space because the OpenFirmware, according to its |
230 | * address space because the OpenFirmware, according to its |
187 | * SPARC binding, should restrict its use of virtual memory |
231 | * SPARC binding, should restrict its use of virtual memory |
188 | * to addresses from [0xffd00000; 0xffefffff] and |
232 | * to addresses from [0xffd00000; 0xffefffff] and |
189 | * [0xfe000000; 0xfeffffff]. |
233 | * [0xfe000000; 0xfeffffff]. |
190 | * |
234 | * |
191 | * XXX We don't map this piece of memory. We simply rely on |
235 | * XXX We don't map this piece of memory. We simply rely on |
192 | * SILO to have it done for us already in this case. |
236 | * SILO to have it done for us already in this case. |
193 | */ |
237 | */ |
194 | (void) ofw_claim_phys(bootinfo.physmem_start + |
238 | (void) ofw_claim_phys(bootinfo.physmem_start + |
195 | bootinfo.taskmap.tasks[j].addr, |
239 | bootinfo.taskmap.tasks[j].addr, |
196 | ALIGN_UP(components[i].size, PAGE_SIZE)); |
240 | ALIGN_UP(components[i].size, PAGE_SIZE)); |
197 | 241 | ||
198 | memcpy((void *)bootinfo.taskmap.tasks[j].addr, |
242 | memcpy((void *)bootinfo.taskmap.tasks[j].addr, |
199 | components[i].start, components[i].size); |
243 | components[i].start, components[i].size); |
200 | printf("done.\n"); |
244 | printf("done.\n"); |
201 | } |
245 | } |
202 | 246 | ||
203 | printf("\nCopying kernel..."); |
247 | printf("\nCopying kernel..."); |
204 | (void) ofw_claim_phys(bootinfo.physmem_start + base, |
248 | (void) ofw_claim_phys(bootinfo.physmem_start + base, |
205 | ALIGN_UP(components[0].size, PAGE_SIZE)); |
249 | ALIGN_UP(components[0].size, PAGE_SIZE)); |
206 | memcpy(base, components[0].start, components[0].size); |
250 | memcpy(base, components[0].start, components[0].size); |
207 | printf("done.\n"); |
251 | printf("done.\n"); |
208 | 252 | ||
209 | /* |
253 | /* |
210 | * Claim and map the physical memory for the boot allocator. |
254 | * Claim and map the physical memory for the boot allocator. |
211 | * Initialize the boot allocator. |
255 | * Initialize the boot allocator. |
212 | */ |
256 | */ |
213 | balloc_base = base + ALIGN_UP(top, PAGE_SIZE); |
257 | balloc_base = base + ALIGN_UP(top, PAGE_SIZE); |
214 | (void) ofw_claim_phys(bootinfo.physmem_start + balloc_base, |
258 | (void) ofw_claim_phys(bootinfo.physmem_start + balloc_base, |
215 | BALLOC_MAX_SIZE); |
259 | BALLOC_MAX_SIZE); |
216 | (void) ofw_map(balloc_base, balloc_base, BALLOC_MAX_SIZE, -1); |
260 | (void) ofw_map(balloc_base, balloc_base, BALLOC_MAX_SIZE, -1); |
217 | balloc_init(&bootinfo.ballocs, (uintptr_t)balloc_base); |
261 | balloc_init(&bootinfo.ballocs, (uintptr_t)balloc_base); |
218 | 262 | ||
219 | printf("\nCanonizing OpenFirmware device tree..."); |
263 | printf("\nCanonizing OpenFirmware device tree..."); |
220 | bootinfo.ofw_root = ofw_tree_build(); |
264 | bootinfo.ofw_root = ofw_tree_build(); |
221 | printf("done.\n"); |
265 | printf("done.\n"); |
222 | 266 | ||
223 | #ifdef CONFIG_SMP |
267 | #ifdef CONFIG_SMP |
224 | printf("\nChecking for secondary processors..."); |
268 | printf("\nChecking for secondary processors..."); |
225 | if (!ofw_cpu()) |
269 | if (!ofw_cpu()) |
226 | printf("Error: unable to get CPU properties\n"); |
270 | printf("Error: unable to get CPU properties\n"); |
227 | printf("done.\n"); |
271 | printf("done.\n"); |
228 | #endif |
272 | #endif |
229 | 273 | ||
230 | printf("\nBooting the kernel...\n"); |
274 | printf("\nBooting the kernel...\n"); |
231 | jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS, |
275 | jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS, |
232 | bootinfo.physmem_start | BSP_PROCESSOR, &bootinfo, |
276 | bootinfo.physmem_start | BSP_PROCESSOR, &bootinfo, |
233 | sizeof(bootinfo)); |
277 | sizeof(bootinfo)); |
234 | } |
278 | } |
235 | 279 | ||
236 | 280 |