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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 Kernel initialization thread. |
35 | * @brief Kernel initialization thread. |
36 | * |
36 | * |
37 | * This file contains kinit kernel thread which carries out |
37 | * This file contains kinit kernel thread which carries out |
38 | * high level system initialization. |
38 | * high level system initialization. |
39 | * |
39 | * |
40 | * This file is responsible for finishing SMP configuration |
40 | * This file is responsible for finishing SMP configuration |
41 | * and creation of userspace init tasks. |
41 | * and creation of userspace init tasks. |
42 | */ |
42 | */ |
43 | 43 | ||
44 | #include <main/kinit.h> |
44 | #include <main/kinit.h> |
45 | #include <config.h> |
45 | #include <config.h> |
46 | #include <arch.h> |
46 | #include <arch.h> |
47 | #include <proc/scheduler.h> |
47 | #include <proc/scheduler.h> |
48 | #include <proc/task.h> |
48 | #include <proc/task.h> |
49 | #include <proc/thread.h> |
49 | #include <proc/thread.h> |
50 | #include <proc/program.h> |
50 | #include <proc/program.h> |
51 | #include <panic.h> |
51 | #include <panic.h> |
52 | #include <func.h> |
52 | #include <func.h> |
53 | #include <cpu.h> |
53 | #include <cpu.h> |
54 | #include <arch/asm.h> |
54 | #include <arch/asm.h> |
55 | #include <mm/page.h> |
55 | #include <mm/page.h> |
56 | #include <arch/mm/page.h> |
56 | #include <arch/mm/page.h> |
57 | #include <mm/as.h> |
57 | #include <mm/as.h> |
58 | #include <mm/frame.h> |
58 | #include <mm/frame.h> |
59 | #include <print.h> |
59 | #include <print.h> |
60 | #include <memstr.h> |
60 | #include <memstr.h> |
61 | #include <console/console.h> |
61 | #include <console/console.h> |
62 | #include <interrupt.h> |
62 | #include <interrupt.h> |
63 | #include <console/kconsole.h> |
63 | #include <console/kconsole.h> |
64 | #include <security/cap.h> |
64 | #include <security/cap.h> |
65 | #include <lib/rd.h> |
65 | #include <lib/rd.h> |
66 | #include <ipc/ipc.h> |
66 | #include <ipc/ipc.h> |
67 | 67 | ||
68 | #ifdef CONFIG_SMP |
68 | #ifdef CONFIG_SMP |
69 | #include <smp/smp.h> |
69 | #include <smp/smp.h> |
70 | #endif /* CONFIG_SMP */ |
70 | #endif /* CONFIG_SMP */ |
71 | 71 | ||
72 | #include <synch/waitq.h> |
72 | #include <synch/waitq.h> |
73 | #include <synch/spinlock.h> |
73 | #include <synch/spinlock.h> |
74 | 74 | ||
- | 75 | #define ALIVE_CHARS 4 |
|
- | 76 | ||
- | 77 | static char alive[ALIVE_CHARS] = "-\\|/"; |
|
- | 78 | ||
75 | /** Kernel initialization thread. |
79 | /** Kernel initialization thread. |
76 | * |
80 | * |
77 | * kinit takes care of higher level kernel |
81 | * kinit takes care of higher level kernel |
78 | * initialization (i.e. thread creation, |
82 | * initialization (i.e. thread creation, |
79 | * userspace initialization etc.). |
83 | * userspace initialization etc.). |
80 | * |
84 | * |
81 | * @param arg Not used. |
85 | * @param arg Not used. |
82 | */ |
86 | */ |
83 | void kinit(void *arg) |
87 | void kinit(void *arg) |
84 | { |
88 | { |
85 | 89 | ||
86 | #if defined(CONFIG_SMP) || defined(CONFIG_KCONSOLE) |
90 | #if defined(CONFIG_SMP) || defined(CONFIG_KCONSOLE) |
87 | thread_t *thread; |
91 | thread_t *thread; |
88 | #endif |
92 | #endif |
89 | 93 | ||
90 | /* |
94 | /* |
91 | * Detach kinit as nobody will call thread_join_timeout() on it. |
95 | * Detach kinit as nobody will call thread_join_timeout() on it. |
92 | */ |
96 | */ |
93 | thread_detach(THREAD); |
97 | thread_detach(THREAD); |
94 | 98 | ||
95 | interrupts_disable(); |
99 | interrupts_disable(); |
96 | 100 | ||
97 | #ifdef CONFIG_SMP |
101 | #ifdef CONFIG_SMP |
98 | if (config.cpu_count > 1) { |
102 | if (config.cpu_count > 1) { |
99 | waitq_initialize(&ap_completion_wq); |
103 | waitq_initialize(&ap_completion_wq); |
100 | /* |
104 | /* |
101 | * Create the kmp thread and wait for its completion. |
105 | * Create the kmp thread and wait for its completion. |
102 | * cpu1 through cpuN-1 will come up consecutively and |
106 | * cpu1 through cpuN-1 will come up consecutively and |
103 | * not mess together with kcpulb threads. |
107 | * not mess together with kcpulb threads. |
104 | * Just a beautification. |
108 | * Just a beautification. |
105 | */ |
109 | */ |
106 | thread = thread_create(kmp, NULL, TASK, THREAD_FLAG_WIRED, "kmp", true); |
110 | thread = thread_create(kmp, NULL, TASK, THREAD_FLAG_WIRED, "kmp", true); |
107 | if (thread != NULL) { |
111 | if (thread != NULL) { |
108 | spinlock_lock(&thread->lock); |
112 | spinlock_lock(&thread->lock); |
109 | thread->cpu = &cpus[0]; |
113 | thread->cpu = &cpus[0]; |
110 | spinlock_unlock(&thread->lock); |
114 | spinlock_unlock(&thread->lock); |
111 | thread_ready(thread); |
115 | thread_ready(thread); |
112 | } else |
116 | } else |
113 | panic("Unable to create kmp thread."); |
117 | panic("Unable to create kmp thread."); |
114 | thread_join(thread); |
118 | thread_join(thread); |
115 | thread_detach(thread); |
119 | thread_detach(thread); |
116 | } |
120 | } |
117 | #endif /* CONFIG_SMP */ |
121 | #endif /* CONFIG_SMP */ |
118 | 122 | ||
119 | #ifdef CONFIG_SMP |
123 | #ifdef CONFIG_SMP |
120 | if (config.cpu_count > 1) { |
124 | if (config.cpu_count > 1) { |
121 | count_t i; |
125 | count_t i; |
122 | 126 | ||
123 | /* |
127 | /* |
124 | * For each CPU, create its load balancing thread. |
128 | * For each CPU, create its load balancing thread. |
125 | */ |
129 | */ |
126 | for (i = 0; i < config.cpu_count; i++) { |
130 | for (i = 0; i < config.cpu_count; i++) { |
127 | thread = thread_create(kcpulb, NULL, TASK, THREAD_FLAG_WIRED, "kcpulb", true); |
131 | thread = thread_create(kcpulb, NULL, TASK, THREAD_FLAG_WIRED, "kcpulb", true); |
128 | if (thread != NULL) { |
132 | if (thread != NULL) { |
129 | spinlock_lock(&thread->lock); |
133 | spinlock_lock(&thread->lock); |
130 | thread->cpu = &cpus[i]; |
134 | thread->cpu = &cpus[i]; |
131 | spinlock_unlock(&thread->lock); |
135 | spinlock_unlock(&thread->lock); |
132 | thread_ready(thread); |
136 | thread_ready(thread); |
133 | } else |
137 | } else |
134 | printf("Unable to create kcpulb thread for cpu" PRIc "\n", i); |
138 | printf("Unable to create kcpulb thread for cpu" PRIc "\n", i); |
135 | 139 | ||
136 | } |
140 | } |
137 | } |
141 | } |
138 | #endif /* CONFIG_SMP */ |
142 | #endif /* CONFIG_SMP */ |
139 | 143 | ||
140 | /* |
144 | /* |
141 | * At this point SMP, if present, is configured. |
145 | * At this point SMP, if present, is configured. |
142 | */ |
146 | */ |
143 | arch_post_smp_init(); |
147 | arch_post_smp_init(); |
144 | 148 | ||
145 | #ifdef CONFIG_KCONSOLE |
149 | #ifdef CONFIG_KCONSOLE |
146 | if (stdin) { |
150 | if (stdin) { |
147 | /* |
151 | /* |
148 | * Create kernel console. |
152 | * Create kernel console. |
149 | */ |
153 | */ |
150 | thread = thread_create(kconsole_thread, NULL, TASK, 0, "kconsole", false); |
154 | thread = thread_create(kconsole_thread, NULL, TASK, 0, "kconsole", false); |
151 | if (thread != NULL) |
155 | if (thread != NULL) |
152 | thread_ready(thread); |
156 | thread_ready(thread); |
153 | else |
157 | else |
154 | printf("Unable to create kconsole thread\n"); |
158 | printf("Unable to create kconsole thread\n"); |
155 | } |
159 | } |
156 | #endif /* CONFIG_KCONSOLE */ |
160 | #endif /* CONFIG_KCONSOLE */ |
157 | 161 | ||
158 | interrupts_enable(); |
162 | interrupts_enable(); |
159 | 163 | ||
160 | /* |
164 | /* |
161 | * Create user tasks, load RAM disk images. |
165 | * Create user tasks, load RAM disk images. |
162 | */ |
166 | */ |
163 | count_t i; |
167 | count_t i; |
164 | program_t programs[CONFIG_INIT_TASKS]; |
168 | program_t programs[CONFIG_INIT_TASKS]; |
165 | 169 | ||
166 | for (i = 0; i < init.cnt; i++) { |
170 | for (i = 0; i < init.cnt; i++) { |
167 | if (init.tasks[i].addr % FRAME_SIZE) { |
171 | if (init.tasks[i].addr % FRAME_SIZE) { |
168 | printf("init[%" PRIc "].addr is not frame aligned\n", i); |
172 | printf("init[%" PRIc "].addr is not frame aligned\n", i); |
169 | continue; |
173 | continue; |
170 | } |
174 | } |
171 | 175 | ||
172 | int rc = program_create_from_image((void *) init.tasks[i].addr, |
176 | int rc = program_create_from_image((void *) init.tasks[i].addr, |
173 | "init-bin", &programs[i]); |
177 | "init-bin", &programs[i]); |
174 | 178 | ||
175 | if ((rc == 0) && (programs[i].task != NULL)) { |
179 | if ((rc == 0) && (programs[i].task != NULL)) { |
176 | /* |
180 | /* |
177 | * Set capabilities to init userspace tasks. |
181 | * Set capabilities to init userspace tasks. |
178 | */ |
182 | */ |
179 | cap_set(programs[i].task, CAP_CAP | CAP_MEM_MANAGER | |
183 | cap_set(programs[i].task, CAP_CAP | CAP_MEM_MANAGER | |
180 | CAP_IO_MANAGER | CAP_PREEMPT_CONTROL | CAP_IRQ_REG); |
184 | CAP_IO_MANAGER | CAP_PREEMPT_CONTROL | CAP_IRQ_REG); |
181 | 185 | ||
182 | if (!ipc_phone_0) |
186 | if (!ipc_phone_0) |
183 | ipc_phone_0 = &programs[i].task->answerbox; |
187 | ipc_phone_0 = &programs[i].task->answerbox; |
184 | } else if (rc == 0) { |
188 | } else if (rc == 0) { |
185 | /* It was the program loader and was registered */ |
189 | /* It was the program loader and was registered */ |
186 | } else { |
190 | } else { |
187 | /* RAM disk image */ |
191 | /* RAM disk image */ |
188 | int rd = init_rd((rd_header_t *) init.tasks[i].addr, init.tasks[i].size); |
192 | int rd = init_rd((rd_header_t *) init.tasks[i].addr, init.tasks[i].size); |
189 | 193 | ||
190 | if (rd != RE_OK) |
194 | if (rd != RE_OK) |
191 | printf("Init binary %" PRIc " not used (error %d)\n", i, rd); |
195 | printf("Init binary %" PRIc " not used (error %d)\n", i, rd); |
192 | } |
196 | } |
193 | } |
197 | } |
194 | 198 | ||
195 | /* |
199 | /* |
196 | * Run user tasks with reasonable delays |
200 | * Run user tasks with reasonable delays |
197 | */ |
201 | */ |
198 | for (i = 0; i < init.cnt; i++) { |
202 | for (i = 0; i < init.cnt; i++) { |
199 | if (programs[i].task != NULL) { |
203 | if (programs[i].task != NULL) { |
200 | thread_usleep(50000); |
204 | thread_usleep(50000); |
201 | program_ready(&programs[i]); |
205 | program_ready(&programs[i]); |
202 | } |
206 | } |
203 | } |
207 | } |
204 | 208 | ||
205 | #ifdef CONFIG_KCONSOLE |
209 | #ifdef CONFIG_KCONSOLE |
206 | if (!stdin) { |
210 | if (!stdin) { |
- | 211 | thread_sleep(10); |
|
207 | printf("kinit: No stdin\nKernel alive: "); |
212 | printf("kinit: No stdin\nKernel alive: "); |
208 | 213 | ||
209 | uint64_t i = 0; |
214 | unsigned int i = 0; |
210 | while (1) { |
215 | while (true) { |
211 | printf("%" PRIu64 " ", i); |
216 | printf("\b%c", alive[i % ALIVE_CHARS]); |
212 | thread_sleep(1); |
217 | thread_sleep(1); |
213 | i++; |
218 | i++; |
214 | } |
219 | } |
215 | } |
220 | } |
216 | #endif /* CONFIG_KCONSOLE */ |
221 | #endif /* CONFIG_KCONSOLE */ |
217 | } |
222 | } |
218 | 223 | ||
219 | /** @} |
224 | /** @} |
220 | */ |
225 | */ |
221 | 226 |