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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 | /** @addtogroup main |
29 | /** @addtogroup main |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | 32 | ||
33 | /** |
33 | /** |
34 | * @file |
34 | * @file |
35 | * @brief Main initialization kernel function for all processors. |
35 | * @brief Main initialization kernel function for all processors. |
36 | * |
36 | * |
37 | * During kernel boot, all processors, after architecture dependent |
37 | * During kernel boot, all processors, after architecture dependent |
38 | * initialization, start executing code found in this file. After |
38 | * initialization, start executing code found in this file. After |
39 | * bringing up all subsystems, control is passed to scheduler(). |
39 | * bringing up all subsystems, control is passed to scheduler(). |
40 | * |
40 | * |
41 | * The bootstrap processor starts executing main_bsp() while |
41 | * The bootstrap processor starts executing main_bsp() while |
42 | * the application processors start executing main_ap(). |
42 | * the application processors start executing main_ap(). |
43 | * |
43 | * |
44 | * @see scheduler() |
44 | * @see scheduler() |
45 | * @see main_bsp() |
45 | * @see main_bsp() |
46 | * @see main_ap() |
46 | * @see main_ap() |
47 | */ |
47 | */ |
48 | 48 | ||
49 | #include <arch/asm.h> |
49 | #include <arch/asm.h> |
50 | #include <context.h> |
50 | #include <context.h> |
51 | #include <print.h> |
51 | #include <print.h> |
52 | #include <panic.h> |
52 | #include <panic.h> |
53 | #include <debug.h> |
53 | #include <debug.h> |
54 | #include <config.h> |
54 | #include <config.h> |
55 | #include <time/clock.h> |
55 | #include <time/clock.h> |
56 | #include <proc/scheduler.h> |
56 | #include <proc/scheduler.h> |
57 | #include <proc/thread.h> |
57 | #include <proc/thread.h> |
58 | #include <proc/task.h> |
58 | #include <proc/task.h> |
59 | #include <main/kinit.h> |
59 | #include <main/kinit.h> |
60 | #include <main/version.h> |
60 | #include <main/version.h> |
61 | #include <console/kconsole.h> |
61 | #include <console/kconsole.h> |
62 | #include <cpu.h> |
62 | #include <cpu.h> |
63 | #include <align.h> |
63 | #include <align.h> |
64 | #include <interrupt.h> |
64 | #include <interrupt.h> |
65 | #include <arch/mm/memory_init.h> |
65 | #include <arch/mm/memory_init.h> |
66 | #include <mm/frame.h> |
66 | #include <mm/frame.h> |
67 | #include <mm/page.h> |
67 | #include <mm/page.h> |
68 | #include <genarch/mm/page_pt.h> |
68 | #include <genarch/mm/page_pt.h> |
69 | #include <mm/tlb.h> |
69 | #include <mm/tlb.h> |
70 | #include <mm/as.h> |
70 | #include <mm/as.h> |
71 | #include <mm/slab.h> |
71 | #include <mm/slab.h> |
72 | #include <synch/waitq.h> |
72 | #include <synch/waitq.h> |
73 | #include <synch/futex.h> |
73 | #include <synch/futex.h> |
74 | #include <arch/arch.h> |
74 | #include <arch/arch.h> |
75 | #include <arch.h> |
75 | #include <arch.h> |
76 | #include <arch/faddr.h> |
76 | #include <arch/faddr.h> |
77 | #include <typedefs.h> |
77 | #include <typedefs.h> |
78 | #include <ipc/ipc.h> |
78 | #include <ipc/ipc.h> |
79 | #include <macros.h> |
79 | #include <macros.h> |
80 | #include <adt/btree.h> |
80 | #include <adt/btree.h> |
81 | #include <console/klog.h> |
81 | #include <console/klog.h> |
82 | 82 | ||
83 | #ifdef CONFIG_SMP |
83 | #ifdef CONFIG_SMP |
84 | #include <arch/smp/apic.h> |
84 | #include <arch/smp/apic.h> |
85 | #include <arch/smp/mps.h> |
85 | #include <arch/smp/mps.h> |
86 | #endif /* CONFIG_SMP */ |
86 | #endif /* CONFIG_SMP */ |
87 | #include <smp/smp.h> |
87 | #include <smp/smp.h> |
88 | 88 | ||
89 | /** Global configuration structure. */ |
89 | /** Global configuration structure. */ |
90 | config_t config; |
90 | config_t config; |
91 | 91 | ||
92 | /** Initial user-space tasks */ |
92 | /** Initial user-space tasks */ |
93 | init_t init = { |
93 | init_t init = { |
94 | 0 |
94 | 0 |
95 | }; |
95 | }; |
96 | 96 | ||
97 | context_t ctx; |
97 | context_t ctx; |
98 | 98 | ||
99 | /* |
99 | /* |
100 | * These 'hardcoded' variables will be intialized by |
100 | * These 'hardcoded' variables will be intialized by |
101 | * the linker or the low level assembler code with |
101 | * the linker or the low level assembler code with |
102 | * appropriate sizes and addresses. |
102 | * appropriate sizes and addresses. |
103 | */ |
103 | */ |
104 | uintptr_t hardcoded_load_address = 0; /**< Virtual address of where the kernel is loaded. */ |
104 | uintptr_t hardcoded_load_address = 0; /**< Virtual address of where the kernel is loaded. */ |
105 | size_t hardcoded_ktext_size = 0; /**< Size of the kernel code in bytes. */ |
105 | size_t hardcoded_ktext_size = 0; /**< Size of the kernel code in bytes. */ |
106 | size_t hardcoded_kdata_size = 0; /**< Size of the kernel data in bytes. */ |
106 | size_t hardcoded_kdata_size = 0; /**< Size of the kernel data in bytes. */ |
107 | 107 | ||
- | 108 | uintptr_t stack_safe = 0; /**< Lowest safe stack virtual address */ |
|
- | 109 | ||
108 | void main_bsp(void); |
110 | void main_bsp(void); |
109 | void main_ap(void); |
111 | void main_ap(void); |
110 | 112 | ||
111 | /* |
113 | /* |
112 | * These two functions prevent stack from underflowing during the |
114 | * These two functions prevent stack from underflowing during the |
113 | * kernel boot phase when SP is set to the very top of the reserved |
115 | * 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 |
116 | * space. The stack could get corrupted by a fooled compiler-generated |
115 | * pop sequence otherwise. |
117 | * pop sequence otherwise. |
116 | */ |
118 | */ |
117 | static void main_bsp_separated_stack(void); |
119 | static void main_bsp_separated_stack(void); |
118 | #ifdef CONFIG_SMP |
120 | #ifdef CONFIG_SMP |
119 | static void main_ap_separated_stack(void); |
121 | static void main_ap_separated_stack(void); |
120 | #endif |
122 | #endif |
121 | 123 | ||
122 | #define CONFIG_STACK_SIZE ((1<<STACK_FRAMES)*STACK_SIZE) |
124 | #define CONFIG_STACK_SIZE ((1<<STACK_FRAMES)*STACK_SIZE) |
123 | 125 | ||
124 | /** Main kernel routine for bootstrap CPU. |
126 | /** Main kernel routine for bootstrap CPU. |
125 | * |
127 | * |
126 | * Initializes the kernel by bootstrap CPU. |
128 | * Initializes the kernel by bootstrap CPU. |
127 | * This function passes control directly to |
129 | * This function passes control directly to |
128 | * main_bsp_separated_stack(). |
130 | * main_bsp_separated_stack(). |
129 | * |
131 | * |
130 | * Assuming interrupts_disable(). |
132 | * Assuming interrupts_disable(). |
131 | * |
133 | * |
132 | */ |
134 | */ |
133 | void main_bsp(void) |
135 | void main_bsp(void) |
134 | { |
136 | { |
135 | uintptr_t stackaddr; |
- | |
136 | - | ||
137 | config.cpu_count = 1; |
137 | config.cpu_count = 1; |
138 | config.cpu_active = 1; |
138 | config.cpu_active = 1; |
139 | 139 | ||
140 | config.base = hardcoded_load_address; |
140 | config.base = hardcoded_load_address; |
141 | config.memory_size = get_memory_size(); |
141 | config.memory_size = get_memory_size(); |
142 | 142 | ||
143 | config.kernel_size = ALIGN_UP(hardcoded_ktext_size + hardcoded_kdata_size, PAGE_SIZE); |
143 | config.kernel_size = ALIGN_UP(hardcoded_ktext_size + hardcoded_kdata_size, PAGE_SIZE); |
- | 144 | config.stack_size = CONFIG_STACK_SIZE; |
|
- | 145 | ||
- | 146 | /* Initialy the stack is placed just after the kernel */ |
|
144 | stackaddr = config.base + config.kernel_size; |
147 | config.stack_base = config.base + config.kernel_size; |
145 | 148 | ||
146 | /* Avoid placing kernel on top of init */ |
149 | /* Avoid placing stack on top of init */ |
147 | count_t i; |
150 | count_t i; |
148 | bool overlap = false; |
- | |
149 | for (i = 0; i < init.cnt; i++) |
151 | for (i = 0; i < init.cnt; i++) { |
150 | if (PA_overlaps(stackaddr, CONFIG_STACK_SIZE, init.tasks[i].addr, init.tasks[i].size)) { |
152 | if (PA_overlaps(config.stack_base, config.stack_size, init.tasks[i].addr, init.tasks[i].size)) |
151 | stackaddr = ALIGN_UP(init.tasks[i].addr + init.tasks[i].size, CONFIG_STACK_SIZE); |
153 | config.stack_base = ALIGN_UP(init.tasks[i].addr + init.tasks[i].size, config.stack_size); |
152 | init.tasks[i].size = ALIGN_UP(init.tasks[i].size, CONFIG_STACK_SIZE) + CONFIG_STACK_SIZE; |
- | |
153 | overlap = true; |
- | |
154 | } |
154 | } |
155 | 155 | ||
156 | if (!overlap) |
156 | if (config.stack_base < stack_safe) |
157 | config.kernel_size += CONFIG_STACK_SIZE; |
157 | config.stack_base = ALIGN_UP(stack_safe, PAGE_SIZE); |
158 | 158 | ||
159 | context_save(&ctx); |
159 | context_save(&ctx); |
160 | context_set(&ctx, FADDR(main_bsp_separated_stack), stackaddr, THREAD_STACK_SIZE); |
160 | context_set(&ctx, FADDR(main_bsp_separated_stack), config.stack_base, THREAD_STACK_SIZE); |
161 | context_restore(&ctx); |
161 | context_restore(&ctx); |
162 | /* not reached */ |
162 | /* not reached */ |
163 | } |
163 | } |
164 | 164 | ||
165 | 165 | ||
166 | /** Main kernel routine for bootstrap CPU using new stack. |
166 | /** Main kernel routine for bootstrap CPU using new stack. |
167 | * |
167 | * |
168 | * Second part of main_bsp(). |
168 | * Second part of main_bsp(). |
169 | * |
169 | * |
170 | */ |
170 | */ |
171 | void main_bsp_separated_stack(void) |
171 | void main_bsp_separated_stack(void) |
172 | { |
172 | { |
173 | task_t *k; |
173 | task_t *k; |
174 | thread_t *t; |
174 | thread_t *t; |
175 | count_t i; |
175 | count_t i; |
176 | 176 | ||
177 | the_initialize(THE); |
177 | the_initialize(THE); |
178 | 178 | ||
179 | /* |
179 | /* |
180 | * kconsole data structures must be initialized very early |
180 | * kconsole data structures must be initialized very early |
181 | * because other subsystems will register their respective |
181 | * because other subsystems will register their respective |
182 | * commands. |
182 | * commands. |
183 | */ |
183 | */ |
184 | kconsole_init(); |
184 | kconsole_init(); |
185 | 185 | ||
186 | /* |
186 | /* |
187 | * Exception handler initialization, before architecture |
187 | * Exception handler initialization, before architecture |
188 | * starts adding its own handlers |
188 | * starts adding its own handlers |
189 | */ |
189 | */ |
190 | exc_init(); |
190 | exc_init(); |
191 | 191 | ||
192 | /* |
192 | /* |
193 | * Memory management subsystems initialization. |
193 | * Memory management subsystems initialization. |
194 | */ |
194 | */ |
195 | arch_pre_mm_init(); |
195 | arch_pre_mm_init(); |
196 | frame_init(); /* Initialize at least 1 memory segment big enough for slab to work */ |
196 | frame_init(); /* Initialize at least 1 memory segment big enough for slab to work */ |
197 | slab_cache_init(); |
197 | slab_cache_init(); |
198 | btree_init(); |
198 | btree_init(); |
199 | as_init(); |
199 | as_init(); |
200 | page_init(); |
200 | page_init(); |
201 | tlb_init(); |
201 | tlb_init(); |
202 | arch_post_mm_init(); |
202 | arch_post_mm_init(); |
203 | 203 | ||
204 | version_print(); |
204 | version_print(); |
205 | printf("%.*p: hardcoded_ktext_size=%zdK, hardcoded_kdata_size=%zdK\n", sizeof(uintptr_t) * 2, config.base, hardcoded_ktext_size >> 10, hardcoded_kdata_size >> 10); |
205 | printf("kernel: %.*p hardcoded_ktext_size=%zdK, hardcoded_kdata_size=%zdK\n", sizeof(uintptr_t) * 2, config.base, hardcoded_ktext_size >> 10, hardcoded_kdata_size >> 10); |
- | 206 | printf("stack: %.*p size=%zdK\n", sizeof(uintptr_t) * 2, config.stack_base, config.stack_size >> 10); |
|
206 | 207 | ||
207 | arch_pre_smp_init(); |
208 | arch_pre_smp_init(); |
208 | smp_init(); |
209 | smp_init(); |
209 | 210 | ||
210 | slab_enable_cpucache(); /* Slab must be initialized AFTER we know the number of processors */ |
211 | slab_enable_cpucache(); /* Slab must be initialized AFTER we know the number of processors */ |
211 | 212 | ||
212 | printf("config.memory_size=%zdM\n", config.memory_size >> 20); |
213 | printf("config.memory_size=%zdM\n", config.memory_size >> 20); |
213 | printf("config.cpu_count=%zd\n", config.cpu_count); |
214 | printf("config.cpu_count=%zd\n", config.cpu_count); |
214 | cpu_init(); |
215 | cpu_init(); |
215 | 216 | ||
216 | calibrate_delay_loop(); |
217 | calibrate_delay_loop(); |
217 | clock_counter_init(); |
218 | clock_counter_init(); |
218 | timeout_init(); |
219 | timeout_init(); |
219 | scheduler_init(); |
220 | scheduler_init(); |
220 | task_init(); |
221 | task_init(); |
221 | thread_init(); |
222 | thread_init(); |
222 | futex_init(); |
223 | futex_init(); |
223 | klog_init(); |
224 | klog_init(); |
224 | 225 | ||
225 | if (init.cnt > 0) { |
226 | if (init.cnt > 0) { |
226 | for (i = 0; i < init.cnt; i++) |
227 | for (i = 0; i < init.cnt; i++) |
227 | printf("init[%zd].addr=%.*p, init[%zd].size=%zd\n", i, sizeof(uintptr_t) * 2, init.tasks[i].addr, i, init.tasks[i].size); |
228 | printf("init[%zd].addr=%.*p, init[%zd].size=%zd\n", i, sizeof(uintptr_t) * 2, init.tasks[i].addr, i, init.tasks[i].size); |
228 | } else |
229 | } else |
229 | printf("No init tasks found\n"); |
230 | printf("No init tasks found\n"); |
230 | 231 | ||
231 | ipc_init(); |
232 | ipc_init(); |
232 | 233 | ||
233 | /* |
234 | /* |
234 | * Create kernel task. |
235 | * Create kernel task. |
235 | */ |
236 | */ |
236 | k = task_create(AS_KERNEL, "KERNEL"); |
237 | k = task_create(AS_KERNEL, "KERNEL"); |
237 | if (!k) |
238 | if (!k) |
238 | panic("can't create kernel task\n"); |
239 | panic("can't create kernel task\n"); |
239 | 240 | ||
240 | /* |
241 | /* |
241 | * Create the first thread. |
242 | * Create the first thread. |
242 | */ |
243 | */ |
243 | t = thread_create(kinit, NULL, k, 0, "kinit"); |
244 | t = thread_create(kinit, NULL, k, 0, "kinit"); |
244 | if (!t) |
245 | if (!t) |
245 | panic("can't create kinit thread\n"); |
246 | panic("can't create kinit thread\n"); |
246 | thread_ready(t); |
247 | thread_ready(t); |
247 | 248 | ||
248 | /* |
249 | /* |
249 | * This call to scheduler() will return to kinit, |
250 | * This call to scheduler() will return to kinit, |
250 | * starting the thread of kernel threads. |
251 | * starting the thread of kernel threads. |
251 | */ |
252 | */ |
252 | scheduler(); |
253 | scheduler(); |
253 | /* not reached */ |
254 | /* not reached */ |
254 | } |
255 | } |
255 | 256 | ||
256 | 257 | ||
257 | #ifdef CONFIG_SMP |
258 | #ifdef CONFIG_SMP |
258 | /** Main kernel routine for application CPUs. |
259 | /** Main kernel routine for application CPUs. |
259 | * |
260 | * |
260 | * Executed by application processors, temporary stack |
261 | * Executed by application processors, temporary stack |
261 | * is at ctx.sp which was set during BP boot. |
262 | * is at ctx.sp which was set during BP boot. |
262 | * This function passes control directly to |
263 | * This function passes control directly to |
263 | * main_ap_separated_stack(). |
264 | * main_ap_separated_stack(). |
264 | * |
265 | * |
265 | * Assuming interrupts_disable()'d. |
266 | * Assuming interrupts_disable()'d. |
266 | * |
267 | * |
267 | */ |
268 | */ |
268 | void main_ap(void) |
269 | void main_ap(void) |
269 | { |
270 | { |
270 | /* |
271 | /* |
271 | * Incrementing the active CPU counter will guarantee that the |
272 | * Incrementing the active CPU counter will guarantee that the |
272 | * pm_init() will not attempt to build GDT and IDT tables again. |
273 | * pm_init() will not attempt to build GDT and IDT tables again. |
273 | * Neither frame_init() will do the complete thing. Neither cpu_init() |
274 | * Neither frame_init() will do the complete thing. Neither cpu_init() |
274 | * will do. |
275 | * will do. |
275 | */ |
276 | */ |
276 | config.cpu_active++; |
277 | config.cpu_active++; |
277 | 278 | ||
278 | /* |
279 | /* |
279 | * The THE structure is well defined because ctx.sp is used as stack. |
280 | * The THE structure is well defined because ctx.sp is used as stack. |
280 | */ |
281 | */ |
281 | the_initialize(THE); |
282 | the_initialize(THE); |
282 | 283 | ||
283 | arch_pre_mm_init(); |
284 | arch_pre_mm_init(); |
284 | frame_init(); |
285 | frame_init(); |
285 | page_init(); |
286 | page_init(); |
286 | tlb_init(); |
287 | tlb_init(); |
287 | arch_post_mm_init(); |
288 | arch_post_mm_init(); |
288 | 289 | ||
289 | cpu_init(); |
290 | cpu_init(); |
290 | 291 | ||
291 | calibrate_delay_loop(); |
292 | calibrate_delay_loop(); |
292 | 293 | ||
293 | l_apic_init(); |
294 | l_apic_init(); |
294 | l_apic_debug(); |
295 | l_apic_debug(); |
295 | 296 | ||
296 | the_copy(THE, (the_t *) CPU->stack); |
297 | the_copy(THE, (the_t *) CPU->stack); |
297 | 298 | ||
298 | /* |
299 | /* |
299 | * If we woke kmp up before we left the kernel stack, we could |
300 | * If we woke kmp up before we left the kernel stack, we could |
300 | * collide with another CPU coming up. To prevent this, we |
301 | * collide with another CPU coming up. To prevent this, we |
301 | * switch to this cpu's private stack prior to waking kmp up. |
302 | * switch to this cpu's private stack prior to waking kmp up. |
302 | */ |
303 | */ |
303 | context_set(&CPU->saved_context, FADDR(main_ap_separated_stack), (uintptr_t) CPU->stack, CPU_STACK_SIZE); |
304 | context_set(&CPU->saved_context, FADDR(main_ap_separated_stack), (uintptr_t) CPU->stack, CPU_STACK_SIZE); |
304 | context_restore(&CPU->saved_context); |
305 | context_restore(&CPU->saved_context); |
305 | /* not reached */ |
306 | /* not reached */ |
306 | } |
307 | } |
307 | 308 | ||
308 | 309 | ||
309 | /** Main kernel routine for application CPUs using new stack. |
310 | /** Main kernel routine for application CPUs using new stack. |
310 | * |
311 | * |
311 | * Second part of main_ap(). |
312 | * Second part of main_ap(). |
312 | * |
313 | * |
313 | */ |
314 | */ |
314 | void main_ap_separated_stack(void) |
315 | void main_ap_separated_stack(void) |
315 | { |
316 | { |
316 | /* |
317 | /* |
317 | * Configure timeouts for this cpu. |
318 | * Configure timeouts for this cpu. |
318 | */ |
319 | */ |
319 | timeout_init(); |
320 | timeout_init(); |
320 | 321 | ||
321 | waitq_wakeup(&ap_completion_wq, WAKEUP_FIRST); |
322 | waitq_wakeup(&ap_completion_wq, WAKEUP_FIRST); |
322 | scheduler(); |
323 | scheduler(); |
323 | /* not reached */ |
324 | /* not reached */ |
324 | } |
325 | } |
325 | #endif /* CONFIG_SMP */ |
326 | #endif /* CONFIG_SMP */ |
326 | 327 | ||
327 | /** @} |
328 | /** @} |
328 | */ |
329 | */ |
329 | 330 |