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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 | 42 | ||
43 | component_t components[COMPONENTS]; |
43 | component_t components[COMPONENTS]; |
44 | 44 | ||
45 | char *release = RELEASE; |
45 | char *release = RELEASE; |
46 | 46 | ||
47 | #ifdef REVISION |
47 | #ifdef REVISION |
48 | char *revision = ", revision " REVISION; |
48 | char *revision = ", revision " REVISION; |
49 | #else |
49 | #else |
50 | char *revision = ""; |
50 | char *revision = ""; |
51 | #endif |
51 | #endif |
52 | 52 | ||
53 | #ifdef TIMESTAMP |
53 | #ifdef TIMESTAMP |
54 | char *timestamp = "\nBuilt on " TIMESTAMP; |
54 | char *timestamp = "\nBuilt on " TIMESTAMP; |
55 | #else |
55 | #else |
56 | char *timestamp = ""; |
56 | char *timestamp = ""; |
57 | #endif |
57 | #endif |
58 | 58 | ||
59 | /** UltraSPARC subarchitecture - 1 for US, 3 for US3, 0 for other */ |
59 | /** UltraSPARC subarchitecture - 1 for US, 3 for US3, 0 for other */ |
60 | uint8_t subarchitecture = 0; |
60 | uint8_t subarchitecture = 0; |
61 | 61 | ||
62 | /** |
62 | /** |
63 | * mask of the MID field inside the ICBUS_CONFIG register shifted by |
63 | * mask of the MID field inside the ICBUS_CONFIG register shifted by |
64 | * MID_SHIFT bits to the right |
64 | * MID_SHIFT bits to the right |
65 | */ |
65 | */ |
66 | uint16_t mid_mask; |
66 | uint16_t mid_mask; |
67 | 67 | ||
68 | /** Print version information. */ |
68 | /** Print version information. */ |
69 | static void version_print(void) |
69 | static void version_print(void) |
70 | { |
70 | { |
71 | printf("HelenOS SPARC64 Bootloader\nRelease %s%s%s\n" |
71 | printf("HelenOS SPARC64 Bootloader\nRelease %s%s%s\n" |
72 | "Copyright (c) 2006 HelenOS project\n", |
72 | "Copyright (c) 2006 HelenOS project\n", |
73 | release, revision, timestamp); |
73 | release, revision, timestamp); |
74 | } |
74 | } |
75 | 75 | ||
76 | /* the lowest ID (read from the VER register) of some US3 CPU model */ |
76 | /* the lowest ID (read from the VER register) of some US3 CPU model */ |
77 | #define FIRST_US3_CPU 0x14 |
77 | #define FIRST_US3_CPU 0x14 |
78 | 78 | ||
79 | /* the greatest ID (read from the VER register) of some US3 CPU model */ |
79 | /* the greatest ID (read from the VER register) of some US3 CPU model */ |
80 | #define LAST_US3_CPU 0x19 |
80 | #define LAST_US3_CPU 0x19 |
81 | 81 | ||
82 | /* UltraSPARC IIIi processor implementation code */ |
82 | /* UltraSPARC IIIi processor implementation code */ |
83 | #define US_IIIi_CODE 0x15 |
83 | #define US_IIIi_CODE 0x15 |
84 | 84 | ||
85 | /* max. length of the "compatible" property of the root node */ |
85 | /* max. length of the "compatible" property of the root node */ |
86 | #define COMPATIBLE_PROP_MAXLEN 64 |
86 | #define COMPATIBLE_PROP_MAXLEN 64 |
87 | 87 | ||
88 | /* |
88 | /* |
89 | * HelenOS bootloader will use these constants to distinguish particular |
89 | * HelenOS bootloader will use these constants to distinguish particular |
90 | * UltraSPARC architectures |
90 | * UltraSPARC architectures |
91 | */ |
91 | */ |
92 | #define COMPATIBLE_SUN4U 10 |
92 | #define COMPATIBLE_SUN4U 10 |
93 | #define COMPATIBLE_SUN4V 20 |
93 | #define COMPATIBLE_SUN4V 20 |
94 | 94 | ||
95 | /** US architecture. COMPATIBLE_SUN4U for sun4v, COMPATIBLE_SUN4V for sun4u */ |
95 | /** US architecture. COMPATIBLE_SUN4U for sun4v, COMPATIBLE_SUN4V for sun4u */ |
96 | static uint8_t architecture; |
96 | static uint8_t architecture; |
97 | 97 | ||
98 | /** |
98 | /** |
99 | * Detects the UltraSPARC architecture (sun4u and sun4v currently supported) |
99 | * Detects the UltraSPARC architecture (sun4u and sun4v currently supported) |
100 | * by inspecting the property called "compatible" in the OBP root node. |
100 | * by inspecting the property called "compatible" in the OBP root node. |
101 | */ |
101 | */ |
102 | static void detect_architecture(void) |
102 | static void detect_architecture(void) |
103 | { |
103 | { |
104 | phandle root = ofw_find_device("/"); |
104 | phandle root = ofw_find_device("/"); |
105 | char compatible[COMPATIBLE_PROP_MAXLEN]; |
105 | char compatible[COMPATIBLE_PROP_MAXLEN]; |
106 | 106 | ||
107 | if (ofw_get_property(root, "compatible", compatible, |
107 | if (ofw_get_property(root, "compatible", compatible, |
108 | COMPATIBLE_PROP_MAXLEN) <= 0) { |
108 | COMPATIBLE_PROP_MAXLEN) <= 0) { |
109 | printf("Unable to determine architecture, default: sun4u.\n"); |
109 | printf("Unable to determine architecture, default: sun4u.\n"); |
110 | architecture = COMPATIBLE_SUN4U; |
110 | architecture = COMPATIBLE_SUN4U; |
111 | return; |
111 | return; |
112 | } |
112 | } |
113 | 113 | ||
114 | if (strcmp(compatible, "sun4v") == 0) { |
114 | if (strcmp(compatible, "sun4v") == 0) { |
115 | architecture = COMPATIBLE_SUN4V; |
115 | architecture = COMPATIBLE_SUN4V; |
116 | } else { |
116 | } else { |
117 | /* |
117 | /* |
118 | * As not all sun4u machines have "sun4u" in their "compatible" |
118 | * As not all sun4u machines have "sun4u" in their "compatible" |
119 | * OBP property (e.g. Serengeti's OBP "compatible" property is |
119 | * OBP property (e.g. Serengeti's OBP "compatible" property is |
120 | * "SUNW,Serengeti"), we will by default fallback to sun4u if |
120 | * "SUNW,Serengeti"), we will by default fallback to sun4u if |
121 | * an unknown value of the "compatible" property is encountered. |
121 | * an unknown value of the "compatible" property is encountered. |
122 | */ |
122 | */ |
123 | architecture = COMPATIBLE_SUN4U; |
123 | architecture = COMPATIBLE_SUN4U; |
124 | } |
124 | } |
125 | } |
125 | } |
126 | 126 | ||
127 | /** |
127 | /** |
128 | * Detects the subarchitecture (US, US3) of the sun4u |
128 | * Detects the subarchitecture (US, US3) of the sun4u |
129 | * processor. Sets the global variables "subarchitecture" and "mid_mask" to |
129 | * processor. Sets the global variables "subarchitecture" and "mid_mask" to |
130 | * correct values. |
130 | * correct values. |
131 | */ |
131 | */ |
132 | static void detect_subarchitecture(void) |
132 | static void detect_subarchitecture(void) |
133 | { |
133 | { |
134 | uint64_t v; |
134 | uint64_t v; |
135 | asm volatile ("rdpr %%ver, %0\n" : "=r" (v)); |
135 | asm volatile ("rdpr %%ver, %0\n" : "=r" (v)); |
136 | 136 | ||
137 | v = (v << 16) >> 48; |
137 | v = (v << 16) >> 48; |
138 | if ((v >= FIRST_US3_CPU) && (v <= LAST_US3_CPU)) { |
138 | if ((v >= FIRST_US3_CPU) && (v <= LAST_US3_CPU)) { |
139 | subarchitecture = SUBARCH_US3; |
139 | subarchitecture = SUBARCH_US3; |
140 | if (v == US_IIIi_CODE) |
140 | if (v == US_IIIi_CODE) |
141 | mid_mask = (1 << 5) - 1; |
141 | mid_mask = (1 << 5) - 1; |
142 | else |
142 | else |
143 | mid_mask = (1 << 10) - 1; |
143 | mid_mask = (1 << 10) - 1; |
144 | } else if (v < FIRST_US3_CPU) { |
144 | } else if (v < FIRST_US3_CPU) { |
145 | subarchitecture = SUBARCH_US; |
145 | subarchitecture = SUBARCH_US; |
146 | mid_mask = (1 << 5) - 1; |
146 | mid_mask = (1 << 5) - 1; |
147 | } else { |
147 | } else { |
148 | printf("\nThis CPU is not supported by HelenOS."); |
148 | printf("\nThis CPU is not supported by HelenOS."); |
149 | } |
149 | } |
150 | } |
150 | } |
151 | 151 | ||
152 | /** |
152 | /** |
153 | * Performs sun4u-specific initialization. The components are expected |
153 | * Performs sun4u-specific initialization. The components are expected |
154 | * to be already copied and boot allocator initialized. |
154 | * to be already copied and boot allocator initialized. |
- | 155 | * |
|
- | 156 | * @param base kernel base virtual address |
|
- | 157 | * @param top virtual address above which the boot allocator |
|
- | 158 | * can make allocations |
|
155 | */ |
159 | */ |
156 | static void bootstrap_sun4u(void) |
160 | static void bootstrap_sun4u(void *base, unsigned int top) |
157 | { |
161 | { |
- | 162 | void *balloc_base; |
|
- | 163 | ||
- | 164 | /* |
|
- | 165 | * Claim and map the physical memory for the boot allocator. |
|
- | 166 | * Initialize the boot allocator. |
|
- | 167 | */ |
|
- | 168 | balloc_base = base + ALIGN_UP(top, PAGE_SIZE); |
|
- | 169 | (void) ofw_claim_phys(bootinfo.physmem_start + balloc_base, |
|
- | 170 | BALLOC_MAX_SIZE); |
|
- | 171 | (void) ofw_map(balloc_base, balloc_base, BALLOC_MAX_SIZE, -1); |
|
- | 172 | balloc_init(&bootinfo.ballocs, (uintptr_t)balloc_base); |
|
- | 173 | ||
158 | printf("\nCanonizing OpenFirmware device tree..."); |
174 | printf("\nCanonizing OpenFirmware device tree..."); |
159 | bootinfo.ofw_root = ofw_tree_build(); |
175 | bootinfo.ofw_root = ofw_tree_build(); |
160 | printf("done.\n"); |
176 | printf("done.\n"); |
161 | 177 | ||
162 | detect_subarchitecture(); |
178 | detect_subarchitecture(); |
163 | 179 | ||
164 | #ifdef CONFIG_SMP |
180 | #ifdef CONFIG_SMP |
165 | printf("\nChecking for secondary processors..."); |
181 | printf("\nChecking for secondary processors..."); |
166 | if (!ofw_cpu()) |
182 | if (!ofw_cpu()) |
167 | printf("Error: unable to get CPU properties\n"); |
183 | printf("Error: unable to get CPU properties\n"); |
168 | printf("done.\n"); |
184 | printf("done.\n"); |
169 | #endif |
185 | #endif |
170 | 186 | ||
171 | setup_palette(); |
187 | setup_palette(); |
172 | } |
188 | } |
173 | 189 | ||
174 | /** |
190 | /** |
175 | * Performs sun4v-specific initialization. The components are expected |
191 | * Performs sun4v-specific initialization. The components are expected |
176 | * to be already copied and boot allocator initialized. |
192 | * to be already copied and boot allocator initialized. |
177 | */ |
193 | */ |
178 | static void bootstrap_sun4v(void) |
194 | static void bootstrap_sun4v(void) |
179 | { |
195 | { |
- | 196 | /* |
|
- | 197 | * When SILO booted, the OBP had established a virtual to physical |
|
- | 198 | * memory mapping. This mapping is not an identity (because the |
|
- | 199 | * physical memory starts on non-zero address) - this is not |
|
- | 200 | * surprising. But! The mapping even does not map virtual address |
|
- | 201 | * 0 onto the starting address of the physical memory, but onto an |
|
- | 202 | * address which is 0x400000 bytes higher. The reason is that the |
|
- | 203 | * OBP had already used the memory just at the beginning of the |
|
- | 204 | * physical memory, so that memory cannot be used by SILO (nor |
|
- | 205 | * bootloader). As for now, we solve it by a nasty workaround: |
|
- | 206 | * we pretend that the physical memory starts 0x400000 bytes further |
|
- | 207 | * than it actually does (and hence pretend that the physical memory |
|
- | 208 | * is 0x400000 bytes smaller). Of course, the value 0x400000 will most |
|
- | 209 | * probably depend on the machine and OBP version (the workaround now |
|
- | 210 | * works on Simics). A solution would be to inspect the "available" |
|
- | 211 | * property of the "/memory" node to find out which parts of memory |
|
- | 212 | * are used by OBP and redesign the algorithm of copying |
|
- | 213 | * kernel/init tasks/ramdisk from the bootable image to memory |
|
- | 214 | * (which we must do anyway because of issues with claiming the memory |
|
- | 215 | * on Serengeti). |
|
- | 216 | */ |
|
- | 217 | bootinfo.physmem_start += 0x400000; |
|
- | 218 | bootinfo.memmap.zones[0].start += 0x400000; |
|
- | 219 | bootinfo.memmap.zones[0].size -= 0x400000; |
|
180 | } |
220 | } |
181 | 221 | ||
182 | void bootstrap(void) |
222 | void bootstrap(void) |
183 | { |
223 | { |
184 | void *base = (void *) KERNEL_VIRTUAL_ADDRESS; |
224 | void *base = (void *) KERNEL_VIRTUAL_ADDRESS; |
185 | void *balloc_base; |
- | |
186 | unsigned int top = 0; |
225 | unsigned int top = 0; |
187 | int i, j; |
226 | int i, j; |
188 | 227 | ||
189 | detect_architecture(); |
228 | detect_architecture(); |
190 | init_components(components); |
229 | init_components(components); |
191 | 230 | ||
192 | if (!ofw_get_physmem_start(&bootinfo.physmem_start)) { |
231 | if (!ofw_get_physmem_start(&bootinfo.physmem_start)) { |
193 | printf("Error: unable to get start of physical memory.\n"); |
232 | printf("Error: unable to get start of physical memory.\n"); |
194 | halt(); |
233 | halt(); |
195 | } |
234 | } |
196 | 235 | ||
197 | if (!ofw_memmap(&bootinfo.memmap)) { |
236 | if (!ofw_memmap(&bootinfo.memmap)) { |
198 | printf("Error: unable to get memory map, halting.\n"); |
237 | printf("Error: unable to get memory map, halting.\n"); |
199 | halt(); |
238 | halt(); |
200 | } |
239 | } |
201 | 240 | ||
202 | if (bootinfo.memmap.total == 0) { |
241 | if (bootinfo.memmap.total == 0) { |
203 | printf("Error: no memory detected, halting.\n"); |
242 | printf("Error: no memory detected, halting.\n"); |
204 | halt(); |
243 | halt(); |
205 | } |
244 | } |
206 | 245 | ||
207 | /* |
246 | /* |
208 | * SILO for some reason adds 0x400000 and subtracts |
247 | * SILO for some reason adds 0x400000 and subtracts |
209 | * bootinfo.physmem_start to/from silo_ramdisk_image. |
248 | * bootinfo.physmem_start to/from silo_ramdisk_image. |
210 | * We just need plain physical address so we fix it up. |
249 | * We just need plain physical address so we fix it up. |
211 | */ |
250 | */ |
212 | if (silo_ramdisk_image) { |
251 | if (silo_ramdisk_image) { |
213 | silo_ramdisk_image += bootinfo.physmem_start; |
252 | silo_ramdisk_image += bootinfo.physmem_start; |
214 | silo_ramdisk_image -= 0x400000; |
253 | silo_ramdisk_image -= 0x400000; |
215 | /* Install 1:1 mapping for the ramdisk. */ |
254 | /* Install 1:1 mapping for the ramdisk. */ |
216 | if (ofw_map((void *)((uintptr_t)silo_ramdisk_image), |
255 | if (ofw_map((void *)((uintptr_t)silo_ramdisk_image), |
217 | (void *)((uintptr_t)silo_ramdisk_image), |
256 | (void *)((uintptr_t)silo_ramdisk_image), |
218 | silo_ramdisk_size, -1) != 0) { |
257 | silo_ramdisk_size, -1) != 0) { |
219 | printf("Failed to map ramdisk.\n"); |
258 | printf("Failed to map ramdisk.\n"); |
220 | halt(); |
259 | halt(); |
221 | } |
260 | } |
222 | } |
261 | } |
223 | 262 | ||
224 | printf("\nSystem info\n"); |
263 | printf("\nSystem info\n"); |
225 | printf(" memory: %dM starting at %P\n", |
264 | printf(" memory: %dM starting at %P\n", |
226 | bootinfo.memmap.total >> 20, bootinfo.physmem_start); |
265 | bootinfo.memmap.total >> 20, bootinfo.physmem_start); |
227 | 266 | ||
228 | printf("\nMemory statistics\n"); |
267 | printf("\nMemory statistics\n"); |
229 | printf(" kernel entry point at %P\n", KERNEL_VIRTUAL_ADDRESS); |
268 | printf(" kernel entry point at %P\n", KERNEL_VIRTUAL_ADDRESS); |
230 | printf(" %P: boot info structure\n", &bootinfo); |
269 | printf(" %P: boot info structure\n", &bootinfo); |
231 | 270 | ||
232 | /* |
271 | /* |
233 | * Figure out destination address for each component. |
272 | * Figure out destination address for each component. |
234 | * In this phase, we don't copy the components yet because we want to |
273 | * In this phase, we don't copy the components yet because we want to |
235 | * to be careful not to overwrite anything, especially the components |
274 | * to be careful not to overwrite anything, especially the components |
236 | * which haven't been copied yet. |
275 | * which haven't been copied yet. |
237 | */ |
276 | */ |
238 | bootinfo.taskmap.count = 0; |
277 | bootinfo.taskmap.count = 0; |
239 | for (i = 0; i < COMPONENTS; i++) { |
278 | for (i = 0; i < COMPONENTS; i++) { |
240 | printf(" %P: %s image (size %d bytes)\n", components[i].start, |
279 | printf(" %P: %s image (size %d bytes)\n", components[i].start, |
241 | components[i].name, components[i].size); |
280 | components[i].name, components[i].size); |
242 | top = ALIGN_UP(top, PAGE_SIZE); |
281 | top = ALIGN_UP(top, PAGE_SIZE); |
243 | if (i > 0) { |
282 | if (i > 0) { |
244 | if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) { |
283 | if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) { |
245 | printf("Skipping superfluous components.\n"); |
284 | printf("Skipping superfluous components.\n"); |
246 | break; |
285 | break; |
247 | } |
286 | } |
248 | bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr = |
287 | bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr = |
249 | base + top; |
288 | base + top; |
250 | bootinfo.taskmap.tasks[bootinfo.taskmap.count].size = |
289 | bootinfo.taskmap.tasks[bootinfo.taskmap.count].size = |
251 | components[i].size; |
290 | components[i].size; |
252 | bootinfo.taskmap.count++; |
291 | bootinfo.taskmap.count++; |
253 | } |
292 | } |
254 | top += components[i].size; |
293 | top += components[i].size; |
255 | } |
294 | } |
256 | 295 | ||
257 | j = bootinfo.taskmap.count - 1; /* do not consider ramdisk */ |
296 | j = bootinfo.taskmap.count - 1; /* do not consider ramdisk */ |
258 | 297 | ||
259 | if (silo_ramdisk_image) { |
298 | if (silo_ramdisk_image) { |
260 | /* Treat the ramdisk as the last bootinfo task. */ |
299 | /* Treat the ramdisk as the last bootinfo task. */ |
261 | if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) { |
300 | if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) { |
262 | printf("Skipping ramdisk.\n"); |
301 | printf("Skipping ramdisk.\n"); |
263 | goto skip_ramdisk; |
302 | goto skip_ramdisk; |
264 | } |
303 | } |
265 | top = ALIGN_UP(top, PAGE_SIZE); |
304 | top = ALIGN_UP(top, PAGE_SIZE); |
266 | bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr = |
305 | bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr = |
267 | base + top; |
306 | base + top; |
268 | bootinfo.taskmap.tasks[bootinfo.taskmap.count].size = |
307 | bootinfo.taskmap.tasks[bootinfo.taskmap.count].size = |
269 | silo_ramdisk_size; |
308 | silo_ramdisk_size; |
270 | bootinfo.taskmap.count++; |
309 | bootinfo.taskmap.count++; |
271 | printf("\nCopying ramdisk..."); |
310 | printf("\nCopying ramdisk..."); |
272 | /* |
311 | /* |
273 | * Claim and map the whole ramdisk as it may exceed the area |
312 | * Claim and map the whole ramdisk as it may exceed the area |
274 | * given to us by SILO. |
313 | * given to us by SILO. |
275 | */ |
314 | */ |
276 | (void) ofw_claim_phys(base + top, silo_ramdisk_size); |
315 | (void) ofw_claim_phys(base + top, silo_ramdisk_size); |
277 | (void) ofw_map(base + top, base + top, silo_ramdisk_size, -1); |
316 | (void) ofw_map(base + top, base + top, silo_ramdisk_size, -1); |
278 | memmove(base + top, (void *)((uintptr_t)silo_ramdisk_image), |
317 | memmove(base + top, (void *)((uintptr_t)silo_ramdisk_image), |
279 | silo_ramdisk_size); |
318 | silo_ramdisk_size); |
280 | printf("done.\n"); |
319 | printf("done.\n"); |
281 | top += silo_ramdisk_size; |
320 | top += silo_ramdisk_size; |
282 | } |
321 | } |
283 | skip_ramdisk: |
322 | skip_ramdisk: |
284 | 323 | ||
285 | /* |
324 | /* |
286 | * Now we can proceed to copy the components. We do it in reverse order |
325 | * Now we can proceed to copy the components. We do it in reverse order |
287 | * so that we don't overwrite anything even if the components overlap |
326 | * so that we don't overwrite anything even if the components overlap |
288 | * with base. |
327 | * with base. |
289 | */ |
328 | */ |
290 | printf("\nCopying bootinfo tasks\n"); |
329 | printf("\nCopying bootinfo tasks\n"); |
291 | for (i = COMPONENTS - 1; i > 0; i--, j--) { |
330 | for (i = COMPONENTS - 1; i > 0; i--, j--) { |
292 | printf(" %s...", components[i].name); |
331 | printf(" %s...", components[i].name); |
293 | 332 | ||
294 | /* |
333 | /* |
295 | * At this point, we claim the physical memory that we are |
334 | * At this point, we claim the physical memory that we are |
296 | * going to use. We should be safe in case of the virtual |
335 | * going to use. We should be safe in case of the virtual |
297 | * address space because the OpenFirmware, according to its |
336 | * address space because the OpenFirmware, according to its |
298 | * SPARC binding, should restrict its use of virtual memory |
337 | * SPARC binding, should restrict its use of virtual memory |
299 | * to addresses from [0xffd00000; 0xffefffff] and |
338 | * to addresses from [0xffd00000; 0xffefffff] and |
300 | * [0xfe000000; 0xfeffffff]. |
339 | * [0xfe000000; 0xfeffffff]. |
301 | * |
340 | * |
302 | * XXX We don't map this piece of memory. We simply rely on |
341 | * XXX We don't map this piece of memory. We simply rely on |
303 | * SILO to have it done for us already in this case. |
342 | * SILO to have it done for us already in this case. |
304 | */ |
343 | */ |
305 | (void) ofw_claim_phys(bootinfo.physmem_start + |
344 | (void) ofw_claim_phys(bootinfo.physmem_start + |
306 | bootinfo.taskmap.tasks[j].addr, |
345 | bootinfo.taskmap.tasks[j].addr, |
307 | ALIGN_UP(components[i].size, PAGE_SIZE)); |
346 | ALIGN_UP(components[i].size, PAGE_SIZE)); |
308 | 347 | ||
309 | memcpy((void *)bootinfo.taskmap.tasks[j].addr, |
348 | memcpy((void *)bootinfo.taskmap.tasks[j].addr, |
310 | components[i].start, components[i].size); |
349 | components[i].start, components[i].size); |
311 | printf("done.\n"); |
350 | printf("done.\n"); |
312 | } |
351 | } |
313 | 352 | ||
314 | printf("\nCopying kernel..."); |
353 | printf("\nCopying kernel..."); |
315 | (void) ofw_claim_phys(bootinfo.physmem_start + base, |
354 | (void) ofw_claim_phys(bootinfo.physmem_start + base, |
316 | ALIGN_UP(components[0].size, PAGE_SIZE)); |
355 | ALIGN_UP(components[0].size, PAGE_SIZE)); |
317 | memcpy(base, components[0].start, components[0].size); |
356 | memcpy(base, components[0].start, components[0].size); |
318 | printf("done.\n"); |
357 | printf("done.\n"); |
319 | 358 | ||
320 | /* |
- | |
321 | * Claim and map the physical memory for the boot allocator. |
- | |
322 | * Initialize the boot allocator. |
- | |
323 | */ |
- | |
324 | balloc_base = base + ALIGN_UP(top, PAGE_SIZE); |
- | |
325 | (void) ofw_claim_phys(bootinfo.physmem_start + balloc_base, |
- | |
326 | BALLOC_MAX_SIZE); |
- | |
327 | (void) ofw_map(balloc_base, balloc_base, BALLOC_MAX_SIZE, -1); |
- | |
328 | balloc_init(&bootinfo.ballocs, (uintptr_t)balloc_base); |
- | |
329 | - | ||
330 | /* perform architecture-specific initialization */ |
359 | /* perform architecture-specific initialization */ |
331 | if (architecture == COMPATIBLE_SUN4U) { |
360 | if (architecture == COMPATIBLE_SUN4U) { |
332 | bootstrap_sun4u(); |
361 | bootstrap_sun4u(base, top); |
333 | } else if (architecture == COMPATIBLE_SUN4V) { |
362 | } else if (architecture == COMPATIBLE_SUN4V) { |
334 | bootstrap_sun4v(); |
363 | bootstrap_sun4v(); |
335 | } else { |
364 | } else { |
336 | printf("Unknown architecture.\n"); |
365 | printf("Unknown architecture.\n"); |
337 | halt(); |
366 | halt(); |
338 | } |
367 | } |
339 | 368 | ||
340 | printf("\nBooting the kernel...\n"); |
369 | printf("\nBooting the kernel...\n"); |
341 | jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS, |
370 | jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS, |
342 | bootinfo.physmem_start | BSP_PROCESSOR, &bootinfo, |
371 | bootinfo.physmem_start | BSP_PROCESSOR, &bootinfo, |
343 | sizeof(bootinfo)); |
372 | sizeof(bootinfo)); |
344 | } |
373 | } |
345 | 374 | ||
346 | 375 |