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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 <debug.h> |
34 | #include <config.h> |
34 | #include <config.h> |
35 | #include <time/clock.h> |
35 | #include <time/clock.h> |
36 | #include <proc/scheduler.h> |
36 | #include <proc/scheduler.h> |
37 | #include <proc/thread.h> |
37 | #include <proc/thread.h> |
38 | #include <proc/task.h> |
38 | #include <proc/task.h> |
39 | #include <main/kinit.h> |
39 | #include <main/kinit.h> |
40 | #include <console/kconsole.h> |
40 | #include <console/kconsole.h> |
41 | #include <cpu.h> |
41 | #include <cpu.h> |
42 | #include <align.h> |
42 | #include <align.h> |
43 | #include <interrupt.h> |
43 | #include <interrupt.h> |
44 | 44 | ||
45 | #ifdef CONFIG_SMP |
45 | #ifdef CONFIG_SMP |
46 | #include <arch/smp/apic.h> |
46 | #include <arch/smp/apic.h> |
47 | #include <arch/smp/mps.h> |
47 | #include <arch/smp/mps.h> |
48 | #endif /* CONFIG_SMP */ |
48 | #endif /* CONFIG_SMP */ |
49 | 49 | ||
50 | #include <smp/smp.h> |
50 | #include <smp/smp.h> |
51 | 51 | ||
52 | #include <arch/mm/memory_init.h> |
52 | #include <arch/mm/memory_init.h> |
53 | #include <mm/heap.h> |
53 | #include <mm/heap.h> |
54 | #include <mm/frame.h> |
54 | #include <mm/frame.h> |
55 | #include <mm/page.h> |
55 | #include <mm/page.h> |
56 | #include <mm/tlb.h> |
56 | #include <mm/tlb.h> |
57 | #include <mm/vm.h> |
57 | #include <mm/vm.h> |
58 | 58 | ||
59 | #include <synch/waitq.h> |
59 | #include <synch/waitq.h> |
60 | 60 | ||
61 | #include <arch/arch.h> |
61 | #include <arch/arch.h> |
62 | #include <arch.h> |
62 | #include <arch.h> |
63 | #include <arch/faddr.h> |
63 | #include <arch/faddr.h> |
64 | 64 | ||
65 | #include <typedefs.h> |
65 | #include <typedefs.h> |
66 | 66 | ||
67 | char *project = "SPARTAN kernel"; |
67 | char *project = "SPARTAN kernel"; |
68 | char *copyright = "Copyright (C) 2001-2005 HelenOS project"; |
68 | char *copyright = "Copyright (C) 2001-2006 HelenOS project"; |
69 | char *release = RELEASE; |
69 | char *release = RELEASE; |
70 | char *name = NAME; |
70 | char *name = NAME; |
71 | char *arch = ARCH; |
71 | char *arch = ARCH; |
72 | 72 | ||
73 | #ifdef REVISION |
73 | #ifdef REVISION |
74 | char *revision = ", revision " REVISION; |
74 | char *revision = ", revision " REVISION; |
75 | #else |
75 | #else |
76 | char *revision = ""; |
76 | char *revision = ""; |
77 | #endif |
77 | #endif |
78 | 78 | ||
79 | #ifdef TIMESTAMP |
79 | #ifdef TIMESTAMP |
80 | char *timestamp = " on " TIMESTAMP; |
80 | char *timestamp = " on " TIMESTAMP; |
81 | #else |
81 | #else |
82 | char *timestamp = ""; |
82 | char *timestamp = ""; |
83 | #endif |
83 | #endif |
84 | 84 | ||
85 | config_t config; |
85 | config_t config; |
86 | context_t ctx; |
86 | context_t ctx; |
87 | 87 | ||
88 | /** |
88 | /** |
89 | * These 'hardcoded' variables will be intialized by |
89 | * These 'hardcoded' variables will be intialized by |
90 | * the linker or the low level assembler code with |
90 | * the linker or the low level assembler code with |
91 | * appropriate sizes and addresses. |
91 | * appropriate sizes and addresses. |
92 | */ |
92 | */ |
93 | __address hardcoded_load_address = 0; |
93 | __address hardcoded_load_address = 0; |
94 | size_t hardcoded_ktext_size = 0; |
94 | size_t hardcoded_ktext_size = 0; |
95 | size_t hardcoded_kdata_size = 0; |
95 | size_t hardcoded_kdata_size = 0; |
96 | 96 | ||
97 | __address init_addr = 0; |
97 | __address init_addr = 0; |
98 | size_t init_size = 0; |
98 | size_t init_size = 0; |
99 | 99 | ||
100 | void main_bsp(void); |
100 | void main_bsp(void); |
101 | void main_ap(void); |
101 | void main_ap(void); |
102 | 102 | ||
103 | /* |
103 | /* |
104 | * These two functions prevent stack from underflowing during the |
104 | * These two functions prevent stack from underflowing during the |
105 | * kernel boot phase when SP is set to the very top of the reserved |
105 | * kernel boot phase when SP is set to the very top of the reserved |
106 | * space. The stack could get corrupted by a fooled compiler-generated |
106 | * space. The stack could get corrupted by a fooled compiler-generated |
107 | * pop sequence otherwise. |
107 | * pop sequence otherwise. |
108 | */ |
108 | */ |
109 | static void main_bsp_separated_stack(void); |
109 | static void main_bsp_separated_stack(void); |
110 | #ifdef CONFIG_SMP |
110 | #ifdef CONFIG_SMP |
111 | static void main_ap_separated_stack(void); |
111 | static void main_ap_separated_stack(void); |
112 | #endif |
112 | #endif |
113 | 113 | ||
114 | /** Bootstrap CPU main kernel routine |
114 | /** Bootstrap CPU main kernel routine |
115 | * |
115 | * |
116 | * Initializes the kernel by bootstrap CPU. |
116 | * Initializes the kernel by bootstrap CPU. |
117 | * |
117 | * |
118 | * Assuming interrupts_disable(). |
118 | * Assuming interrupts_disable(). |
119 | * |
119 | * |
120 | */ |
120 | */ |
121 | void main_bsp(void) |
121 | void main_bsp(void) |
122 | { |
122 | { |
123 | config.cpu_count = 1; |
123 | config.cpu_count = 1; |
124 | config.cpu_active = 1; |
124 | config.cpu_active = 1; |
125 | 125 | ||
126 | config.base = hardcoded_load_address; |
126 | config.base = hardcoded_load_address; |
127 | config.memory_size = get_memory_size(); |
127 | config.memory_size = get_memory_size(); |
128 | config.init_addr = init_addr; |
128 | config.init_addr = init_addr; |
129 | config.init_size = init_size; |
129 | config.init_size = init_size; |
130 | 130 | ||
131 | if (init_size > 0) |
131 | if (init_size > 0) |
132 | config.heap_addr = init_addr + init_size; |
132 | config.heap_addr = init_addr + init_size; |
133 | else |
133 | else |
134 | config.heap_addr = hardcoded_load_address + hardcoded_ktext_size + hardcoded_kdata_size; |
134 | config.heap_addr = hardcoded_load_address + hardcoded_ktext_size + hardcoded_kdata_size; |
135 | 135 | ||
136 | config.heap_size = CONFIG_HEAP_SIZE + (config.memory_size / FRAME_SIZE) * sizeof(frame_t); |
136 | config.heap_size = CONFIG_HEAP_SIZE + (config.memory_size / FRAME_SIZE) * sizeof(frame_t); |
137 | 137 | ||
138 | config.kernel_size = ALIGN_UP(config.heap_addr - hardcoded_load_address + config.heap_size, PAGE_SIZE); |
138 | config.kernel_size = ALIGN_UP(config.heap_addr - hardcoded_load_address + config.heap_size, PAGE_SIZE); |
139 | config.heap_delta = config.kernel_size - (config.heap_addr - hardcoded_load_address + config.heap_size); |
139 | config.heap_delta = config.kernel_size - (config.heap_addr - hardcoded_load_address + config.heap_size); |
140 | config.kernel_size = config.kernel_size + CONFIG_STACK_SIZE; |
140 | config.kernel_size = config.kernel_size + CONFIG_STACK_SIZE; |
141 | 141 | ||
142 | context_save(&ctx); |
142 | context_save(&ctx); |
143 | context_set(&ctx, FADDR(main_bsp_separated_stack), config.base + config.kernel_size, CONFIG_STACK_SIZE); |
143 | context_set(&ctx, FADDR(main_bsp_separated_stack), config.base + config.kernel_size, CONFIG_STACK_SIZE); |
144 | context_restore(&ctx); |
144 | context_restore(&ctx); |
145 | /* not reached */ |
145 | /* not reached */ |
146 | } |
146 | } |
147 | 147 | ||
148 | 148 | ||
149 | /** Bootstrap CPU main kernel routine stack wrapper |
149 | /** Bootstrap CPU main kernel routine stack wrapper |
150 | * |
150 | * |
151 | * Second part of main_bsp(). |
151 | * Second part of main_bsp(). |
152 | * |
152 | * |
153 | */ |
153 | */ |
154 | void main_bsp_separated_stack(void) |
154 | void main_bsp_separated_stack(void) |
155 | { |
155 | { |
156 | vm_t *m; |
156 | vm_t *m; |
157 | task_t *k; |
157 | task_t *k; |
158 | thread_t *t; |
158 | thread_t *t; |
159 | 159 | ||
160 | the_initialize(THE); |
160 | the_initialize(THE); |
161 | 161 | ||
162 | /* |
162 | /* |
163 | * kconsole data structures must be initialized very early |
163 | * kconsole data structures must be initialized very early |
164 | * because other subsystems will register their respective |
164 | * because other subsystems will register their respective |
165 | * commands. |
165 | * commands. |
166 | */ |
166 | */ |
167 | kconsole_init(); |
167 | kconsole_init(); |
168 | 168 | ||
169 | /* Exception handler initialization, before architecture |
169 | /* Exception handler initialization, before architecture |
170 | * starts adding it's own handlers |
170 | * starts adding it's own handlers |
171 | */ |
171 | */ |
172 | exc_init(); |
172 | exc_init(); |
173 | 173 | ||
174 | arch_pre_mm_init(); |
174 | arch_pre_mm_init(); |
175 | early_heap_init(config.heap_addr, config.heap_size + config.heap_delta); |
175 | early_heap_init(config.heap_addr, config.heap_size + config.heap_delta); |
176 | frame_init(); |
176 | frame_init(); |
177 | page_init(); |
177 | page_init(); |
178 | tlb_init(); |
178 | tlb_init(); |
179 | arch_post_mm_init(); |
179 | arch_post_mm_init(); |
180 | 180 | ||
181 | printf("%s, release %s (%s)%s\nBuilt%s for %s\n%s\n", project, release, name, revision, timestamp, arch, copyright); |
181 | printf("%s, release %s (%s)%s\nBuilt%s for %s\n%s\n", project, release, name, revision, timestamp, arch, copyright); |
182 | printf("%P: hardcoded_ktext_size=%dK, hardcoded_kdata_size=%dK\n", |
182 | printf("%P: hardcoded_ktext_size=%dK, hardcoded_kdata_size=%dK\n", |
183 | config.base, hardcoded_ktext_size/1024, hardcoded_kdata_size/1024); |
183 | config.base, hardcoded_ktext_size/1024, hardcoded_kdata_size/1024); |
184 | 184 | ||
185 | arch_pre_smp_init(); |
185 | arch_pre_smp_init(); |
186 | smp_init(); |
186 | smp_init(); |
187 | printf("config.memory_size=%dM\n", config.memory_size/(1024*1024)); |
187 | printf("config.memory_size=%dM\n", config.memory_size/(1024*1024)); |
188 | printf("config.cpu_count=%d\n", config.cpu_count); |
188 | printf("config.cpu_count=%d\n", config.cpu_count); |
189 | 189 | ||
190 | cpu_init(); |
190 | cpu_init(); |
191 | 191 | ||
192 | calibrate_delay_loop(); |
192 | calibrate_delay_loop(); |
193 | 193 | ||
194 | timeout_init(); |
194 | timeout_init(); |
195 | scheduler_init(); |
195 | scheduler_init(); |
196 | task_init(); |
196 | task_init(); |
197 | thread_init(); |
197 | thread_init(); |
198 | 198 | ||
199 | if (config.init_size > 0) |
199 | if (config.init_size > 0) |
200 | printf("config.init_addr=%X, config.init_size=%d\n", config.init_addr, config.init_size); |
200 | printf("config.init_addr=%X, config.init_size=%d\n", config.init_addr, config.init_size); |
201 | 201 | ||
202 | /* |
202 | /* |
203 | * Create kernel vm mapping. |
203 | * Create kernel vm mapping. |
204 | */ |
204 | */ |
205 | m = vm_create(GET_PTL0_ADDRESS()); |
205 | m = vm_create(GET_PTL0_ADDRESS()); |
206 | if (!m) |
206 | if (!m) |
207 | panic("can't create kernel vm address space\n"); |
207 | panic("can't create kernel vm address space\n"); |
208 | 208 | ||
209 | /* |
209 | /* |
210 | * Create kernel task. |
210 | * Create kernel task. |
211 | */ |
211 | */ |
212 | k = task_create(m); |
212 | k = task_create(m); |
213 | if (!k) |
213 | if (!k) |
214 | panic("can't create kernel task\n"); |
214 | panic("can't create kernel task\n"); |
215 | 215 | ||
216 | /* |
216 | /* |
217 | * Create the first thread. |
217 | * Create the first thread. |
218 | */ |
218 | */ |
219 | t = thread_create(kinit, NULL, k, 0); |
219 | t = thread_create(kinit, NULL, k, 0); |
220 | if (!t) |
220 | if (!t) |
221 | panic("can't create kinit thread\n"); |
221 | panic("can't create kinit thread\n"); |
222 | thread_ready(t); |
222 | thread_ready(t); |
223 | /* |
223 | /* |
224 | * This call to scheduler() will return to kinit, |
224 | * This call to scheduler() will return to kinit, |
225 | * starting the thread of kernel threads. |
225 | * starting the thread of kernel threads. |
226 | */ |
226 | */ |
227 | scheduler(); |
227 | scheduler(); |
228 | /* not reached */ |
228 | /* not reached */ |
229 | } |
229 | } |
230 | 230 | ||
231 | 231 | ||
232 | #ifdef CONFIG_SMP |
232 | #ifdef CONFIG_SMP |
233 | /** Application CPUs main kernel routine |
233 | /** Application CPUs main kernel routine |
234 | * |
234 | * |
235 | * Executed by application processors, temporary stack |
235 | * Executed by application processors, temporary stack |
236 | * is at ctx.sp which was set during BP boot. |
236 | * is at ctx.sp which was set during BP boot. |
237 | * |
237 | * |
238 | * Assuming interrupts_disable()'d. |
238 | * Assuming interrupts_disable()'d. |
239 | * |
239 | * |
240 | */ |
240 | */ |
241 | void main_ap(void) |
241 | void main_ap(void) |
242 | { |
242 | { |
243 | /* |
243 | /* |
244 | * Incrementing the active CPU counter will guarantee that the |
244 | * Incrementing the active CPU counter will guarantee that the |
245 | * 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. |
246 | * Neither frame_init() will do the complete thing. Neither cpu_init() |
246 | * Neither frame_init() will do the complete thing. Neither cpu_init() |
247 | * will do. |
247 | * will do. |
248 | */ |
248 | */ |
249 | config.cpu_active++; |
249 | config.cpu_active++; |
250 | 250 | ||
251 | /* |
251 | /* |
252 | * 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. |
253 | */ |
253 | */ |
254 | the_initialize(THE); |
254 | the_initialize(THE); |
255 | 255 | ||
256 | arch_pre_mm_init(); |
256 | arch_pre_mm_init(); |
257 | frame_init(); |
257 | frame_init(); |
258 | page_init(); |
258 | page_init(); |
259 | tlb_init(); |
259 | tlb_init(); |
260 | arch_post_mm_init(); |
260 | arch_post_mm_init(); |
261 | 261 | ||
262 | cpu_init(); |
262 | cpu_init(); |
263 | 263 | ||
264 | calibrate_delay_loop(); |
264 | calibrate_delay_loop(); |
265 | 265 | ||
266 | l_apic_init(); |
266 | l_apic_init(); |
267 | l_apic_debug(); |
267 | l_apic_debug(); |
268 | 268 | ||
269 | the_copy(THE, (the_t *) CPU->stack); |
269 | the_copy(THE, (the_t *) CPU->stack); |
270 | 270 | ||
271 | /* |
271 | /* |
272 | * 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 |
273 | * collide with another CPU coming up. To prevent this, we |
273 | * collide with another CPU coming up. To prevent this, we |
274 | * 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. |
275 | */ |
275 | */ |
276 | 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); |
277 | context_restore(&CPU->saved_context); |
277 | context_restore(&CPU->saved_context); |
278 | /* not reached */ |
278 | /* not reached */ |
279 | } |
279 | } |
280 | 280 | ||
281 | 281 | ||
282 | /** Application CPUs main kernel routine stack wrapper |
282 | /** Application CPUs main kernel routine stack wrapper |
283 | * |
283 | * |
284 | * Second part of main_ap(). |
284 | * Second part of main_ap(). |
285 | * |
285 | * |
286 | */ |
286 | */ |
287 | void main_ap_separated_stack(void) |
287 | void main_ap_separated_stack(void) |
288 | { |
288 | { |
289 | /* |
289 | /* |
290 | * Configure timeouts for this cpu. |
290 | * Configure timeouts for this cpu. |
291 | */ |
291 | */ |
292 | timeout_init(); |
292 | timeout_init(); |
293 | 293 | ||
294 | waitq_wakeup(&ap_completion_wq, WAKEUP_FIRST); |
294 | waitq_wakeup(&ap_completion_wq, WAKEUP_FIRST); |
295 | scheduler(); |
295 | scheduler(); |
296 | /* not reached */ |
296 | /* not reached */ |
297 | } |
297 | } |
298 | #endif /* CONFIG_SMP */ |
298 | #endif /* CONFIG_SMP */ |
299 | 299 |