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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 | /** Kernel initialization thread. |
75 | /** Kernel initialization thread. |
76 | * |
76 | * |
77 | * kinit takes care of higher level kernel |
77 | * kinit takes care of higher level kernel |
78 | * initialization (i.e. thread creation, |
78 | * initialization (i.e. thread creation, |
79 | * userspace initialization etc.). |
79 | * userspace initialization etc.). |
80 | * |
80 | * |
81 | * @param arg Not used. |
81 | * @param arg Not used. |
82 | */ |
82 | */ |
83 | void kinit(void *arg) |
83 | void kinit(void *arg) |
84 | { |
84 | { |
85 | 85 | ||
86 | #if defined(CONFIG_SMP) || defined(CONFIG_KCONSOLE) |
86 | #if defined(CONFIG_SMP) || defined(CONFIG_KCONSOLE) |
87 | thread_t *thread; |
87 | thread_t *thread; |
88 | #endif |
88 | #endif |
89 | 89 | ||
90 | /* |
90 | /* |
91 | * Detach kinit as nobody will call thread_join_timeout() on it. |
91 | * Detach kinit as nobody will call thread_join_timeout() on it. |
92 | */ |
92 | */ |
93 | thread_detach(THREAD); |
93 | thread_detach(THREAD); |
94 | 94 | ||
95 | interrupts_disable(); |
95 | interrupts_disable(); |
96 | 96 | ||
97 | #ifdef CONFIG_SMP |
97 | #ifdef CONFIG_SMP |
98 | if (config.cpu_count > 1) { |
98 | if (config.cpu_count > 1) { |
99 | waitq_initialize(&ap_completion_wq); |
99 | waitq_initialize(&ap_completion_wq); |
100 | /* |
100 | /* |
101 | * Create the kmp thread and wait for its completion. |
101 | * Create the kmp thread and wait for its completion. |
102 | * cpu1 through cpuN-1 will come up consecutively and |
102 | * cpu1 through cpuN-1 will come up consecutively and |
103 | * not mess together with kcpulb threads. |
103 | * not mess together with kcpulb threads. |
104 | * Just a beautification. |
104 | * Just a beautification. |
105 | */ |
105 | */ |
106 | thread = thread_create(kmp, NULL, TASK, THREAD_FLAG_WIRED, "kmp", true); |
106 | thread = thread_create(kmp, NULL, TASK, THREAD_FLAG_WIRED, "kmp", true); |
107 | if (thread != NULL) { |
107 | if (thread != NULL) { |
108 | spinlock_lock(&thread->lock); |
108 | spinlock_lock(&thread->lock); |
109 | thread->cpu = &cpus[0]; |
109 | thread->cpu = &cpus[0]; |
110 | spinlock_unlock(&thread->lock); |
110 | spinlock_unlock(&thread->lock); |
111 | thread_ready(thread); |
111 | thread_ready(thread); |
112 | } else |
112 | } else |
113 | panic("Unable to create kmp thread\n"); |
113 | panic("Unable to create kmp thread\n"); |
114 | thread_join(thread); |
114 | thread_join(thread); |
115 | thread_detach(thread); |
115 | thread_detach(thread); |
116 | } |
116 | } |
117 | #endif /* CONFIG_SMP */ |
117 | #endif /* CONFIG_SMP */ |
118 | 118 | ||
119 | #ifdef CONFIG_SMP |
119 | #ifdef CONFIG_SMP |
120 | if (config.cpu_count > 1) { |
120 | if (config.cpu_count > 1) { |
121 | count_t i; |
121 | count_t i; |
122 | 122 | ||
123 | /* |
123 | /* |
124 | * For each CPU, create its load balancing thread. |
124 | * For each CPU, create its load balancing thread. |
125 | */ |
125 | */ |
126 | for (i = 0; i < config.cpu_count; i++) { |
126 | for (i = 0; i < config.cpu_count; i++) { |
127 | thread = thread_create(kcpulb, NULL, TASK, THREAD_FLAG_WIRED, "kcpulb", true); |
127 | thread = thread_create(kcpulb, NULL, TASK, THREAD_FLAG_WIRED, "kcpulb", true); |
128 | if (thread != NULL) { |
128 | if (thread != NULL) { |
129 | spinlock_lock(&thread->lock); |
129 | spinlock_lock(&thread->lock); |
130 | thread->cpu = &cpus[i]; |
130 | thread->cpu = &cpus[i]; |
131 | spinlock_unlock(&thread->lock); |
131 | spinlock_unlock(&thread->lock); |
132 | thread_ready(thread); |
132 | thread_ready(thread); |
133 | } else |
133 | } else |
134 | printf("Unable to create kcpulb thread for cpu" PRIc "\n", i); |
134 | printf("Unable to create kcpulb thread for cpu" PRIc "\n", i); |
135 | 135 | ||
136 | } |
136 | } |
137 | } |
137 | } |
138 | #endif /* CONFIG_SMP */ |
138 | #endif /* CONFIG_SMP */ |
139 | 139 | ||
140 | /* |
140 | /* |
141 | * At this point SMP, if present, is configured. |
141 | * At this point SMP, if present, is configured. |
142 | */ |
142 | */ |
143 | arch_post_smp_init(); |
143 | arch_post_smp_init(); |
144 | 144 | ||
145 | #ifdef CONFIG_KCONSOLE |
145 | #ifdef CONFIG_KCONSOLE |
146 | if (stdin) { |
146 | if (stdin) { |
147 | /* |
147 | /* |
148 | * Create kernel console. |
148 | * Create kernel console. |
149 | */ |
149 | */ |
150 | thread = thread_create(kconsole_thread, NULL, TASK, 0, "kconsole", false); |
150 | thread = thread_create(kconsole_thread, NULL, TASK, 0, "kconsole", false); |
151 | if (thread != NULL) |
151 | if (thread != NULL) |
152 | thread_ready(thread); |
152 | thread_ready(thread); |
153 | else |
153 | else |
154 | printf("Unable to create kconsole thread\n"); |
154 | printf("Unable to create kconsole thread\n"); |
155 | } |
155 | } |
156 | #endif /* CONFIG_KCONSOLE */ |
156 | #endif /* CONFIG_KCONSOLE */ |
157 | 157 | ||
158 | interrupts_enable(); |
158 | interrupts_enable(); |
159 | /* |
159 | /* |
160 | * Create user tasks, load RAM disk images. |
160 | * Create user tasks, load RAM disk images. |
161 | */ |
161 | */ |
162 | count_t i; |
162 | count_t i; |
163 | program_t programs[CONFIG_INIT_TASKS]; |
163 | program_t programs[CONFIG_INIT_TASKS]; |
164 | 164 | ||
165 | for (i = 0; i < init.cnt; i++) { |
165 | for (i = 0; i < init.cnt; i++) { |
166 | if (init.tasks[i].addr % FRAME_SIZE) { |
166 | if (init.tasks[i].addr % FRAME_SIZE) { |
167 | printf("init[%" PRIc "].addr is not frame aligned\n", i); |
167 | printf("init[%" PRIc "].addr is not frame aligned\n", i); |
168 | continue; |
168 | continue; |
169 | } |
169 | } |
170 | 170 | ||
171 | int rc = program_create_from_image((void *) init.tasks[i].addr, |
171 | int rc = program_create_from_image((void *) init.tasks[i].addr, |
172 | "init-bin", &programs[i]); |
172 | "init-bin", &programs[i]); |
173 | 173 | ||
174 | if ((rc == 0) && (programs[i].task != NULL)) { |
174 | if ((rc == 0) && (programs[i].task != NULL)) { |
175 | /* |
175 | /* |
176 | * Set capabilities to init userspace tasks. |
176 | * Set capabilities to init userspace tasks. |
177 | */ |
177 | */ |
178 | cap_set(programs[i].task, CAP_CAP | CAP_MEM_MANAGER | |
178 | cap_set(programs[i].task, CAP_CAP | CAP_MEM_MANAGER | |
179 | CAP_IO_MANAGER | CAP_PREEMPT_CONTROL | CAP_IRQ_REG); |
179 | CAP_IO_MANAGER | CAP_PREEMPT_CONTROL | CAP_IRQ_REG); |
180 | 180 | ||
181 | if (!ipc_phone_0) |
181 | if (!ipc_phone_0) |
182 | ipc_phone_0 = &programs[i].task->answerbox; |
182 | ipc_phone_0 = &programs[i].task->answerbox; |
183 | } else if (rc == 0) { |
183 | } else if (rc == 0) { |
184 | /* It was the program loader and was registered */ |
184 | /* It was the program loader and was registered */ |
185 | } else { |
185 | } else { |
186 | /* RAM disk image */ |
186 | /* RAM disk image */ |
187 | int rd = init_rd((rd_header_t *) init.tasks[i].addr, init.tasks[i].size); |
187 | int rd = init_rd((rd_header_t *) init.tasks[i].addr, init.tasks[i].size); |
188 | 188 | ||
189 | if (rd != RE_OK) |
189 | if (rd != RE_OK) |
190 | printf("Init binary %" PRIc " not used (error %d)\n", i, rd); |
190 | printf("Init binary %" PRIc " not used (error %d)\n", i, rd); |
191 | } |
191 | } |
192 | } |
192 | } |
193 | 193 | ||
194 | /* |
194 | /* |
195 | * Run user tasks with reasonable delays |
195 | * Run user tasks with reasonable delays |
196 | */ |
196 | */ |
197 | for (i = 0; i < init.cnt; i++) { |
197 | for (i = 0; i < init.cnt; i++) { |
198 | if (programs[i].task != NULL) { |
198 | if (programs[i].task != NULL) { |
199 | thread_usleep(50000); |
199 | thread_usleep(50000); |
200 | program_ready(&programs[i]); |
200 | program_ready(&programs[i]); |
201 | } |
201 | } |
202 | } |
202 | } |
- | 203 | ||
203 | #ifdef CONFIG_KCONSOLE |
204 | #ifdef CONFIG_KCONSOLE |
204 | if (!stdin) { |
205 | if (!stdin) { |
205 | printf("kinit: No stdin\nKernel alive: "); |
206 | printf("kinit: No stdin\nKernel alive: "); |
206 | 207 | ||
207 | uint64_t i = 0; |
208 | uint64_t i = 0; |
208 | while (1) { |
209 | while (1) { |
209 | printf(PRIu64 " ", i); |
210 | printf(PRIu64 " ", i); |
210 | thread_sleep(1); |
211 | thread_sleep(1); |
211 | i++; |
212 | i++; |
212 | } |
213 | } |
213 | } |
214 | } |
214 | #endif /* CONFIG_KCONSOLE */ |
215 | #endif /* CONFIG_KCONSOLE */ |
215 | } |
216 | } |
216 | 217 | ||
217 | /** @} |
218 | /** @} |
218 | */ |
219 | */ |
219 | 220 |