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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 | /** |
29 | /** |
30 | * @file kinit.c |
30 | * @file kinit.c |
31 | * @brief Kernel initialization thread. |
31 | * @brief Kernel initialization thread. |
32 | * |
32 | * |
33 | * This file contains kinit kernel thread which carries out |
33 | * This file contains kinit kernel thread which carries out |
34 | * high level system initialization. |
34 | * high level system initialization. |
35 | * |
35 | * |
36 | * This file is responsible for finishing SMP configuration |
36 | * This file is responsible for finishing SMP configuration |
37 | * and creation of userspace init tasks. |
37 | * and creation of userspace init tasks. |
38 | */ |
38 | */ |
39 | 39 | ||
40 | #include <main/kinit.h> |
40 | #include <main/kinit.h> |
41 | #include <config.h> |
41 | #include <config.h> |
42 | #include <arch.h> |
42 | #include <arch.h> |
43 | #include <proc/scheduler.h> |
43 | #include <proc/scheduler.h> |
44 | #include <proc/task.h> |
44 | #include <proc/task.h> |
45 | #include <proc/thread.h> |
45 | #include <proc/thread.h> |
46 | #include <panic.h> |
46 | #include <panic.h> |
47 | #include <func.h> |
47 | #include <func.h> |
48 | #include <cpu.h> |
48 | #include <cpu.h> |
49 | #include <arch/asm.h> |
49 | #include <arch/asm.h> |
50 | #include <mm/page.h> |
50 | #include <mm/page.h> |
51 | #include <arch/mm/page.h> |
51 | #include <arch/mm/page.h> |
52 | #include <mm/as.h> |
52 | #include <mm/as.h> |
53 | #include <mm/frame.h> |
53 | #include <mm/frame.h> |
54 | #include <print.h> |
54 | #include <print.h> |
55 | #include <memstr.h> |
55 | #include <memstr.h> |
56 | #include <console/console.h> |
56 | #include <console/console.h> |
57 | #include <interrupt.h> |
57 | #include <interrupt.h> |
58 | #include <console/kconsole.h> |
58 | #include <console/kconsole.h> |
59 | #include <security/cap.h> |
59 | #include <security/cap.h> |
60 | 60 | ||
61 | #ifdef CONFIG_SMP |
61 | #ifdef CONFIG_SMP |
62 | #include <arch/smp/mps.h> |
62 | #include <arch/smp/mps.h> |
63 | #endif /* CONFIG_SMP */ |
63 | #endif /* CONFIG_SMP */ |
64 | 64 | ||
65 | #include <synch/waitq.h> |
65 | #include <synch/waitq.h> |
66 | #include <synch/spinlock.h> |
66 | #include <synch/spinlock.h> |
67 | 67 | ||
68 | #ifdef CONFIG_TEST |
68 | #ifdef CONFIG_TEST |
69 | #include <test.h> |
69 | #include <test.h> |
70 | #endif /* CONFIG_TEST */ |
70 | #endif /* CONFIG_TEST */ |
71 | 71 | ||
72 | /** Kernel initialization thread. |
72 | /** Kernel initialization thread. |
73 | * |
73 | * |
74 | * kinit takes care of higher level kernel |
74 | * kinit takes care of higher level kernel |
75 | * initialization (i.e. thread creation, |
75 | * initialization (i.e. thread creation, |
76 | * userspace initialization etc.). |
76 | * userspace initialization etc.). |
77 | * |
77 | * |
78 | * @param arg Not used. |
78 | * @param arg Not used. |
79 | */ |
79 | */ |
80 | void kinit(void *arg) |
80 | void kinit(void *arg) |
81 | { |
81 | { |
82 | thread_t *t; |
82 | thread_t *t; |
83 | task_t *utask; |
- | |
84 | 83 | ||
85 | /* |
84 | /* |
86 | * Detach kinit as nobody will call thread_join_timeout() on it. |
85 | * Detach kinit as nobody will call thread_join_timeout() on it. |
87 | */ |
86 | */ |
88 | thread_detach(THREAD); |
87 | thread_detach(THREAD); |
89 | 88 | ||
90 | interrupts_disable(); |
89 | interrupts_disable(); |
91 | 90 | ||
92 | #ifdef CONFIG_SMP |
91 | #ifdef CONFIG_SMP |
93 | if (config.cpu_count > 1) { |
92 | if (config.cpu_count > 1) { |
94 | /* |
93 | /* |
95 | * Create the kmp thread and wait for its completion. |
94 | * Create the kmp thread and wait for its completion. |
96 | * cpu1 through cpuN-1 will come up consecutively and |
95 | * cpu1 through cpuN-1 will come up consecutively and |
97 | * not mess together with kcpulb threads. |
96 | * not mess together with kcpulb threads. |
98 | * Just a beautification. |
97 | * Just a beautification. |
99 | */ |
98 | */ |
100 | if ((t = thread_create(kmp, NULL, TASK, 0, "kmp"))) { |
99 | if ((t = thread_create(kmp, NULL, TASK, 0, "kmp"))) { |
101 | spinlock_lock(&t->lock); |
100 | spinlock_lock(&t->lock); |
102 | t->flags |= X_WIRED; |
101 | t->flags |= X_WIRED; |
103 | t->cpu = &cpus[0]; |
102 | t->cpu = &cpus[0]; |
104 | spinlock_unlock(&t->lock); |
103 | spinlock_unlock(&t->lock); |
105 | thread_ready(t); |
104 | thread_ready(t); |
106 | } |
105 | } |
107 | else { |
106 | else { |
108 | panic("thread_create/kmp\n"); |
107 | panic("thread_create/kmp\n"); |
109 | } |
108 | } |
110 | thread_join(t); |
109 | thread_join(t); |
111 | thread_detach(t); |
110 | thread_detach(t); |
112 | } |
111 | } |
113 | #endif /* CONFIG_SMP */ |
112 | #endif /* CONFIG_SMP */ |
114 | /* |
113 | /* |
115 | * Now that all CPUs are up, we can report what we've found. |
114 | * Now that all CPUs are up, we can report what we've found. |
116 | */ |
115 | */ |
117 | cpu_list(); |
116 | cpu_list(); |
118 | 117 | ||
119 | #ifdef CONFIG_SMP |
118 | #ifdef CONFIG_SMP |
120 | if (config.cpu_count > 1) { |
119 | if (config.cpu_count > 1) { |
121 | int i; |
120 | int i; |
122 | 121 | ||
123 | /* |
122 | /* |
124 | * For each CPU, create its load balancing thread. |
123 | * For each CPU, create its load balancing thread. |
125 | */ |
124 | */ |
126 | for (i = 0; i < config.cpu_count; i++) { |
125 | for (i = 0; i < config.cpu_count; i++) { |
127 | 126 | ||
128 | if ((t = thread_create(kcpulb, NULL, TASK, 0, "kcpulb"))) { |
127 | if ((t = thread_create(kcpulb, NULL, TASK, 0, "kcpulb"))) { |
129 | spinlock_lock(&t->lock); |
128 | spinlock_lock(&t->lock); |
130 | t->flags |= X_WIRED; |
129 | t->flags |= X_WIRED; |
131 | t->cpu = &cpus[i]; |
130 | t->cpu = &cpus[i]; |
132 | spinlock_unlock(&t->lock); |
131 | spinlock_unlock(&t->lock); |
133 | thread_ready(t); |
132 | thread_ready(t); |
134 | } |
133 | } |
135 | else panic("thread_create/kcpulb\n"); |
134 | else panic("thread_create/kcpulb\n"); |
136 | 135 | ||
137 | } |
136 | } |
138 | } |
137 | } |
139 | #endif /* CONFIG_SMP */ |
138 | #endif /* CONFIG_SMP */ |
140 | 139 | ||
141 | /* |
140 | /* |
142 | * At this point SMP, if present, is configured. |
141 | * At this point SMP, if present, is configured. |
143 | */ |
142 | */ |
144 | arch_post_smp_init(); |
143 | arch_post_smp_init(); |
145 | 144 | ||
146 | /* |
145 | /* |
147 | * Create kernel console. |
146 | * Create kernel console. |
148 | */ |
147 | */ |
149 | if ((t = thread_create(kconsole, "kconsole", TASK, 0, "kconsole"))) |
148 | if ((t = thread_create(kconsole, "kconsole", TASK, 0, "kconsole"))) |
150 | thread_ready(t); |
149 | thread_ready(t); |
151 | else |
150 | else |
152 | panic("thread_create/kconsole\n"); |
151 | panic("thread_create/kconsole\n"); |
153 | 152 | ||
154 | interrupts_enable(); |
153 | interrupts_enable(); |
155 | 154 | ||
- | 155 | #ifdef CONFIG_TEST |
|
- | 156 | test(); |
|
- | 157 | printf("\nTest finished, please reboot\n"); |
|
- | 158 | while(1) |
|
- | 159 | ; |
|
- | 160 | #else /* CONFIG_TEST */ |
|
- | 161 | ||
- | 162 | task_t *utask; |
|
156 | count_t i; |
163 | count_t i; |
157 | for (i = 0; i < init.cnt; i++) { |
164 | for (i = 0; i < init.cnt; i++) { |
158 | /* |
165 | /* |
159 | * Run user tasks. |
166 | * Run user tasks. |
160 | */ |
167 | */ |
161 | 168 | ||
162 | if (init.tasks[i].addr % FRAME_SIZE) |
169 | if (init.tasks[i].addr % FRAME_SIZE) |
163 | panic("init[%d].addr is not frame aligned", i); |
170 | panic("init[%d].addr is not frame aligned", i); |
164 | 171 | ||
165 | utask = task_run_program((void *) init.tasks[i].addr, "USPACE"); |
172 | utask = task_run_program((void *) init.tasks[i].addr, "USPACE"); |
166 | if (utask) { |
173 | if (utask) { |
167 | /* |
174 | /* |
168 | * Set capabilities to init userspace tasks. |
175 | * Set capabilities to init userspace tasks. |
169 | */ |
176 | */ |
170 | cap_set(utask, CAP_CAP | CAP_MEM_MANAGER | CAP_IO_MANAGER | CAP_PREEMPT_CONTROL | CAP_IRQ_REG); |
177 | cap_set(utask, CAP_CAP | CAP_MEM_MANAGER | CAP_IO_MANAGER | CAP_PREEMPT_CONTROL | CAP_IRQ_REG); |
171 | 178 | ||
172 | if (!ipc_phone_0) |
179 | if (!ipc_phone_0) |
173 | ipc_phone_0 = &utask->answerbox; |
180 | ipc_phone_0 = &utask->answerbox; |
174 | } else |
181 | } else |
175 | printf("Init task %zd not started.\n", i); |
182 | printf("Init task %zd not started.\n", i); |
176 | } |
183 | } |
177 | 184 | ||
178 | #ifdef CONFIG_TEST |
- | |
179 | test(); |
- | |
180 | #endif /* CONFIG_TEST */ |
- | |
181 | 185 | ||
182 | if (!stdin) { |
186 | if (!stdin) { |
183 | while (1) { |
187 | while (1) { |
184 | thread_sleep(1); |
188 | thread_sleep(1); |
185 | printf("kinit... "); |
189 | printf("kinit... "); |
186 | } |
190 | } |
187 | } |
191 | } |
- | 192 | #endif /* CONFIG_TEST */ |
|
188 | 193 | ||
189 | } |
194 | } |
190 | 195 |