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1 | /* |
1 | /* |
2 | * Copyright (C) 2001-2004 Jakub Jermar |
2 | * Copyright (C) 2001-2004 Jakub Jermar |
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 <arch/asm.h> |
29 | #include <arch/asm.h> |
30 | #include <context.h> |
30 | #include <context.h> |
31 | #include <print.h> |
31 | #include <print.h> |
32 | #include <panic.h> |
32 | #include <panic.h> |
- | 33 | #include <debug.h> |
|
33 | #include <config.h> |
34 | #include <config.h> |
34 | #include <time/clock.h> |
35 | #include <time/clock.h> |
35 | #include <proc/scheduler.h> |
36 | #include <proc/scheduler.h> |
36 | #include <proc/thread.h> |
37 | #include <proc/thread.h> |
37 | #include <proc/task.h> |
38 | #include <proc/task.h> |
38 | #include <main/kinit.h> |
39 | #include <main/kinit.h> |
39 | #include <console/kconsole.h> |
40 | #include <console/kconsole.h> |
40 | #include <cpu.h> |
41 | #include <cpu.h> |
41 | #include <align.h> |
42 | #include <align.h> |
42 | 43 | ||
43 | #ifdef CONFIG_SMP |
44 | #ifdef CONFIG_SMP |
44 | #include <arch/smp/apic.h> |
45 | #include <arch/smp/apic.h> |
45 | #include <arch/smp/mps.h> |
46 | #include <arch/smp/mps.h> |
46 | #endif /* CONFIG_SMP */ |
47 | #endif /* CONFIG_SMP */ |
47 | 48 | ||
48 | #include <smp/smp.h> |
49 | #include <smp/smp.h> |
49 | 50 | ||
50 | #include <arch/mm/memory_init.h> |
51 | #include <arch/mm/memory_init.h> |
51 | #include <mm/heap.h> |
52 | #include <mm/heap.h> |
52 | #include <mm/frame.h> |
53 | #include <mm/frame.h> |
53 | #include <mm/page.h> |
54 | #include <mm/page.h> |
54 | #include <mm/tlb.h> |
55 | #include <mm/tlb.h> |
55 | #include <mm/vm.h> |
56 | #include <mm/vm.h> |
56 | 57 | ||
57 | #include <synch/waitq.h> |
58 | #include <synch/waitq.h> |
58 | 59 | ||
59 | #include <arch/arch.h> |
60 | #include <arch/arch.h> |
60 | #include <arch.h> |
61 | #include <arch.h> |
61 | #include <arch/faddr.h> |
62 | #include <arch/faddr.h> |
62 | 63 | ||
63 | #include <typedefs.h> |
64 | #include <typedefs.h> |
64 | 65 | ||
65 | char *project = "SPARTAN kernel"; |
66 | char *project = "SPARTAN kernel"; |
- | 67 | char *copyright = "Copyright (C) 2001-2005 HelenOS project"; |
|
66 | char *release = RELEASE " (" NAME ")"; |
68 | char *release = RELEASE; |
67 | #ifdef TAG |
69 | char *name = NAME; |
68 | char *rr_delimiter = "\n"; |
70 | char *arch = STRING(ARCH); |
- | 71 | ||
- | 72 | #ifdef REVISION |
|
69 | char *revision = TAG; |
73 | char *revision = ", revision " REVISION; |
70 | #else |
74 | #else |
71 | char *rr_delimiter = ""; |
- | |
72 | char *revision = ""; |
75 | char *revision = ""; |
73 | #endif |
76 | #endif |
- | 77 | ||
- | 78 | #ifdef TIMESTAMP |
|
74 | char *copyright = "Copyright (C) 2001-2005 HelenOS project"; |
79 | char *timestamp = " on " TIMESTAMP; |
- | 80 | #else |
|
- | 81 | char *timestamp = ""; |
|
- | 82 | #endif |
|
- | 83 | ||
75 | 84 | ||
76 | config_t config; |
85 | config_t config; |
77 | context_t ctx; |
86 | context_t ctx; |
78 | 87 | ||
79 | /** |
88 | /** |
80 | * These 'hardcoded' variables will be intialized by |
89 | * These 'hardcoded' variables will be intialized by |
81 | * the linker or the low level assembler code with |
90 | * the linker or the low level assembler code with |
82 | * appropriate sizes and addresses. |
91 | * appropriate sizes and addresses. |
83 | */ |
92 | */ |
84 | __address hardcoded_load_address = 0; |
93 | __address hardcoded_load_address = 0; |
85 | size_t hardcoded_ktext_size = 0; |
94 | size_t hardcoded_ktext_size = 0; |
86 | size_t hardcoded_kdata_size = 0; |
95 | size_t hardcoded_kdata_size = 0; |
87 | 96 | ||
88 | __address init_addr = 0; |
97 | __address init_addr = 0; |
89 | size_t init_size = 0; |
98 | size_t init_size = 0; |
90 | 99 | ||
91 | /** |
100 | /** |
92 | * Size of memory in bytes taken by kernel and heap. |
101 | * Size of memory in bytes taken by kernel and heap. |
93 | */ |
102 | */ |
94 | static size_t kernel_size; |
103 | static size_t kernel_size; |
95 | 104 | ||
96 | /** |
105 | /** |
97 | * Size of heap. |
106 | * Size of heap. |
98 | */ |
107 | */ |
99 | static size_t heap_size; |
108 | static size_t heap_size; |
100 | 109 | ||
101 | 110 | ||
102 | /** |
111 | /** |
103 | * Extra space between heap and stack |
112 | * Extra space between heap and stack |
104 | * enforced by alignment requirements. |
113 | * enforced by alignment requirements. |
105 | */ |
114 | */ |
106 | static size_t heap_delta; |
115 | static size_t heap_delta; |
107 | 116 | ||
108 | void main_bsp(void); |
117 | void main_bsp(void); |
109 | void main_ap(void); |
118 | void main_ap(void); |
110 | 119 | ||
111 | /* |
120 | /* |
112 | * These two functions prevent stack from underflowing during the |
121 | * These two functions prevent stack from underflowing during the |
113 | * kernel boot phase when SP is set to the very top of the reserved |
122 | * kernel boot phase when SP is set to the very top of the reserved |
114 | * space. The stack could get corrupted by a fooled compiler-generated |
123 | * space. The stack could get corrupted by a fooled compiler-generated |
115 | * pop sequence otherwise. |
124 | * pop sequence otherwise. |
116 | */ |
125 | */ |
117 | static void main_bsp_separated_stack(void); |
126 | static void main_bsp_separated_stack(void); |
118 | static void main_ap_separated_stack(void); |
127 | static void main_ap_separated_stack(void); |
119 | 128 | ||
120 | /** Bootstrap CPU main kernel routine |
129 | /** Bootstrap CPU main kernel routine |
121 | * |
130 | * |
122 | * Initializes the kernel by bootstrap CPU. |
131 | * Initializes the kernel by bootstrap CPU. |
123 | * |
132 | * |
124 | * Assuming interrupts_disable(). |
133 | * Assuming interrupts_disable(). |
125 | * |
134 | * |
126 | */ |
135 | */ |
127 | void main_bsp(void) |
136 | void main_bsp(void) |
128 | { |
137 | { |
129 | config.cpu_count = 1; |
138 | config.cpu_count = 1; |
130 | config.cpu_active = 1; |
139 | config.cpu_active = 1; |
131 | config.base = hardcoded_load_address; |
140 | config.base = hardcoded_load_address; |
132 | config.memory_size = get_memory_size(); |
141 | config.memory_size = get_memory_size(); |
133 | 142 | ||
134 | heap_size = CONFIG_HEAP_SIZE + (config.memory_size/FRAME_SIZE)*sizeof(frame_t); |
143 | heap_size = CONFIG_HEAP_SIZE + (config.memory_size/FRAME_SIZE)*sizeof(frame_t); |
135 | kernel_size = ALIGN(hardcoded_ktext_size + hardcoded_kdata_size + heap_size, PAGE_SIZE); |
144 | kernel_size = ALIGN(hardcoded_ktext_size + hardcoded_kdata_size + heap_size, PAGE_SIZE); |
136 | heap_delta = kernel_size - (hardcoded_ktext_size + hardcoded_kdata_size + heap_size); |
145 | heap_delta = kernel_size - (hardcoded_ktext_size + hardcoded_kdata_size + heap_size); |
137 | 146 | ||
138 | config.kernel_size = kernel_size + CONFIG_STACK_SIZE; |
147 | config.kernel_size = kernel_size + CONFIG_STACK_SIZE; |
139 | 148 | ||
140 | context_save(&ctx); |
149 | context_save(&ctx); |
141 | early_mapping(config.base + hardcoded_ktext_size + hardcoded_kdata_size, CONFIG_STACK_SIZE + heap_size + heap_delta); |
150 | early_mapping(config.base + hardcoded_ktext_size + hardcoded_kdata_size, CONFIG_STACK_SIZE + heap_size + heap_delta); |
142 | context_set(&ctx, FADDR(main_bsp_separated_stack), config.base + kernel_size, CONFIG_STACK_SIZE); |
151 | context_set(&ctx, FADDR(main_bsp_separated_stack), config.base + kernel_size, CONFIG_STACK_SIZE); |
143 | context_restore(&ctx); |
152 | context_restore(&ctx); |
144 | /* not reached */ |
153 | /* not reached */ |
145 | } |
154 | } |
146 | 155 | ||
147 | 156 | ||
148 | /** Bootstrap CPU main kernel routine stack wrapper |
157 | /** Bootstrap CPU main kernel routine stack wrapper |
149 | * |
158 | * |
150 | * Second part of main_bsp(). |
159 | * Second part of main_bsp(). |
151 | * |
160 | * |
152 | */ |
161 | */ |
153 | void main_bsp_separated_stack(void) |
162 | void main_bsp_separated_stack(void) |
154 | { |
163 | { |
155 | vm_t *m; |
164 | vm_t *m; |
156 | task_t *k; |
165 | task_t *k; |
157 | thread_t *t; |
166 | thread_t *t; |
158 | 167 | ||
159 | the_initialize(THE); |
168 | the_initialize(THE); |
160 | 169 | ||
161 | /* |
170 | /* |
162 | * kconsole data structures must be initialized very early |
171 | * kconsole data structures must be initialized very early |
163 | * because other subsystems will register their respective |
172 | * because other subsystems will register their respective |
164 | * commands. |
173 | * commands. |
165 | */ |
174 | */ |
166 | kconsole_init(); |
175 | kconsole_init(); |
167 | 176 | ||
168 | arch_pre_mm_init(); |
177 | arch_pre_mm_init(); |
169 | early_heap_init(config.base + hardcoded_ktext_size + hardcoded_kdata_size, heap_size + heap_delta); |
178 | early_heap_init(config.base + hardcoded_ktext_size + hardcoded_kdata_size, heap_size + heap_delta); |
170 | frame_init(); |
179 | frame_init(); |
171 | page_init(); |
180 | page_init(); |
172 | tlb_init(); |
181 | tlb_init(); |
173 | arch_post_mm_init(); |
182 | arch_post_mm_init(); |
174 | 183 | ||
175 | printf("%s, release %s%s%s\n%s\n", project, release, rr_delimiter, revision, copyright); |
184 | printf("%s, release %s (%s)%s\nBuild%s for %s\n%s\n", project, release, name, revision, timestamp, arch, copyright); |
176 | printf("%P: hardcoded_ktext_size=%dK, hardcoded_kdata_size=%dK\n", |
185 | printf("%P: hardcoded_ktext_size=%dK, hardcoded_kdata_size=%dK\n", |
177 | config.base, hardcoded_ktext_size/1024, hardcoded_kdata_size/1024); |
186 | config.base, hardcoded_ktext_size/1024, hardcoded_kdata_size/1024); |
178 | 187 | ||
179 | arch_pre_smp_init(); |
188 | arch_pre_smp_init(); |
180 | smp_init(); |
189 | smp_init(); |
181 | printf("config.memory_size=%dM\n", config.memory_size/(1024*1024)); |
190 | printf("config.memory_size=%dM\n", config.memory_size/(1024*1024)); |
182 | printf("config.cpu_count=%d\n", config.cpu_count); |
191 | printf("config.cpu_count=%d\n", config.cpu_count); |
183 | 192 | ||
184 | cpu_init(); |
193 | cpu_init(); |
185 | 194 | ||
186 | calibrate_delay_loop(); |
195 | calibrate_delay_loop(); |
187 | 196 | ||
188 | timeout_init(); |
197 | timeout_init(); |
189 | scheduler_init(); |
198 | scheduler_init(); |
190 | task_init(); |
199 | task_init(); |
191 | thread_init(); |
200 | thread_init(); |
192 | 201 | ||
193 | /* |
202 | /* |
194 | * Create kernel vm mapping. |
203 | * Create kernel vm mapping. |
195 | */ |
204 | */ |
196 | m = vm_create(GET_PTL0_ADDRESS()); |
205 | m = vm_create(GET_PTL0_ADDRESS()); |
197 | if (!m) |
206 | if (!m) |
198 | panic("can't create kernel vm address space\n"); |
207 | panic("can't create kernel vm address space\n"); |
199 | 208 | ||
200 | /* |
209 | /* |
201 | * Create kernel task. |
210 | * Create kernel task. |
202 | */ |
211 | */ |
203 | k = task_create(m); |
212 | k = task_create(m); |
204 | if (!k) |
213 | if (!k) |
205 | panic("can't create kernel task\n"); |
214 | panic("can't create kernel task\n"); |
206 | 215 | ||
207 | /* |
216 | /* |
208 | * Create the first thread. |
217 | * Create the first thread. |
209 | */ |
218 | */ |
210 | t = thread_create(kinit, NULL, k, 0); |
219 | t = thread_create(kinit, NULL, k, 0); |
211 | if (!t) |
220 | if (!t) |
212 | panic("can't create kinit thread\n"); |
221 | panic("can't create kinit thread\n"); |
213 | thread_ready(t); |
222 | thread_ready(t); |
214 | /* |
223 | /* |
215 | * This call to scheduler() will return to kinit, |
224 | * This call to scheduler() will return to kinit, |
216 | * starting the thread of kernel threads. |
225 | * starting the thread of kernel threads. |
217 | */ |
226 | */ |
218 | scheduler(); |
227 | scheduler(); |
219 | /* not reached */ |
228 | /* not reached */ |
220 | } |
229 | } |
221 | 230 | ||
222 | 231 | ||
223 | #ifdef CONFIG_SMP |
232 | #ifdef CONFIG_SMP |
224 | /** Application CPUs main kernel routine |
233 | /** Application CPUs main kernel routine |
225 | * |
234 | * |
226 | * Executed by application processors, temporary stack |
235 | * Executed by application processors, temporary stack |
227 | * is at ctx.sp which was set during BP boot. |
236 | * is at ctx.sp which was set during BP boot. |
228 | * |
237 | * |
229 | * Assuming interrupts_disable()'d. |
238 | * Assuming interrupts_disable()'d. |
230 | * |
239 | * |
231 | */ |
240 | */ |
232 | void main_ap(void) |
241 | void main_ap(void) |
233 | { |
242 | { |
234 | /* |
243 | /* |
235 | * Incrementing the active CPU counter will guarantee that the |
244 | * Incrementing the active CPU counter will guarantee that the |
236 | * pm_init() will not attempt to build GDT and IDT tables again. |
245 | * pm_init() will not attempt to build GDT and IDT tables again. |
237 | * Neither frame_init() will do the complete thing. Neither cpu_init() |
246 | * Neither frame_init() will do the complete thing. Neither cpu_init() |
238 | * will do. |
247 | * will do. |
239 | */ |
248 | */ |
240 | config.cpu_active++; |
249 | config.cpu_active++; |
241 | 250 | ||
242 | /* |
251 | /* |
243 | * The THE structure is well defined because ctx.sp is used as stack. |
252 | * The THE structure is well defined because ctx.sp is used as stack. |
244 | */ |
253 | */ |
245 | the_initialize(THE); |
254 | the_initialize(THE); |
246 | 255 | ||
247 | arch_pre_mm_init(); |
256 | arch_pre_mm_init(); |
248 | frame_init(); |
257 | frame_init(); |
249 | page_init(); |
258 | page_init(); |
250 | tlb_init(); |
259 | tlb_init(); |
251 | arch_post_mm_init(); |
260 | arch_post_mm_init(); |
252 | 261 | ||
253 | cpu_init(); |
262 | cpu_init(); |
254 | 263 | ||
255 | calibrate_delay_loop(); |
264 | calibrate_delay_loop(); |
256 | 265 | ||
257 | l_apic_init(); |
266 | l_apic_init(); |
258 | l_apic_debug(); |
267 | l_apic_debug(); |
259 | 268 | ||
260 | the_copy(THE, (the_t *) CPU->stack); |
269 | the_copy(THE, (the_t *) CPU->stack); |
261 | 270 | ||
262 | /* |
271 | /* |
263 | * If we woke kmp up before we left the kernel stack, we could |
272 | * If we woke kmp up before we left the kernel stack, we could |
264 | * collide with another CPU coming up. To prevent this, we |
273 | * collide with another CPU coming up. To prevent this, we |
265 | * switch to this cpu's private stack prior to waking kmp up. |
274 | * switch to this cpu's private stack prior to waking kmp up. |
266 | */ |
275 | */ |
267 | context_set(&CPU->saved_context, FADDR(main_ap_separated_stack), (__address) CPU->stack, CPU_STACK_SIZE); |
276 | context_set(&CPU->saved_context, FADDR(main_ap_separated_stack), (__address) CPU->stack, CPU_STACK_SIZE); |
268 | context_restore(&CPU->saved_context); |
277 | context_restore(&CPU->saved_context); |
269 | /* not reached */ |
278 | /* not reached */ |
270 | } |
279 | } |
271 | 280 | ||
272 | 281 | ||
273 | /** Application CPUs main kernel routine stack wrapper |
282 | /** Application CPUs main kernel routine stack wrapper |
274 | * |
283 | * |
275 | * Second part of main_ap(). |
284 | * Second part of main_ap(). |
276 | * |
285 | * |
277 | */ |
286 | */ |
278 | void main_ap_separated_stack(void) |
287 | void main_ap_separated_stack(void) |
279 | { |
288 | { |
280 | /* |
289 | /* |
281 | * Configure timeouts for this cpu. |
290 | * Configure timeouts for this cpu. |
282 | */ |
291 | */ |
283 | timeout_init(); |
292 | timeout_init(); |
284 | 293 | ||
285 | waitq_wakeup(&ap_completion_wq, WAKEUP_FIRST); |
294 | waitq_wakeup(&ap_completion_wq, WAKEUP_FIRST); |
286 | scheduler(); |
295 | scheduler(); |
287 | /* not reached */ |
296 | /* not reached */ |
288 | } |
297 | } |
289 | #endif /* CONFIG_SMP */ |
298 | #endif /* CONFIG_SMP */ |
290 | 299 |