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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 <main/kinit.h> |
29 | #include <main/kinit.h> |
30 | #include <config.h> |
30 | #include <config.h> |
31 | #include <arch.h> |
31 | #include <arch.h> |
32 | #include <proc/scheduler.h> |
32 | #include <proc/scheduler.h> |
33 | #include <proc/task.h> |
33 | #include <proc/task.h> |
34 | #include <proc/thread.h> |
34 | #include <proc/thread.h> |
35 | #include <panic.h> |
35 | #include <panic.h> |
36 | #include <func.h> |
36 | #include <func.h> |
37 | #include <cpu.h> |
37 | #include <cpu.h> |
38 | #include <arch/asm.h> |
38 | #include <arch/asm.h> |
39 | #include <mm/page.h> |
39 | #include <mm/page.h> |
40 | #include <arch/mm/page.h> |
40 | #include <arch/mm/page.h> |
41 | #include <mm/as.h> |
41 | #include <mm/as.h> |
42 | #include <mm/frame.h> |
42 | #include <mm/frame.h> |
43 | #include <print.h> |
43 | #include <print.h> |
44 | #include <memstr.h> |
44 | #include <memstr.h> |
45 | #include <console/console.h> |
45 | #include <console/console.h> |
46 | #include <interrupt.h> |
46 | #include <interrupt.h> |
47 | #include <console/kconsole.h> |
47 | #include <console/kconsole.h> |
48 | 48 | ||
49 | #ifdef CONFIG_SMP |
49 | #ifdef CONFIG_SMP |
50 | #include <arch/smp/mps.h> |
50 | #include <arch/smp/mps.h> |
51 | #endif /* CONFIG_SMP */ |
51 | #endif /* CONFIG_SMP */ |
52 | 52 | ||
53 | #include <synch/waitq.h> |
53 | #include <synch/waitq.h> |
54 | #include <synch/spinlock.h> |
54 | #include <synch/spinlock.h> |
55 | 55 | ||
56 | #ifdef CONFIG_TEST |
56 | #ifdef CONFIG_TEST |
57 | #include <test.h> |
57 | #include <test.h> |
58 | #endif /* CONFIG_TEST */ |
58 | #endif /* CONFIG_TEST */ |
59 | 59 | ||
60 | /** Kernel initialization thread. |
60 | /** Kernel initialization thread. |
61 | * |
61 | * |
62 | * kinit takes care of higher level kernel |
62 | * kinit takes care of higher level kernel |
63 | * initialization (i.e. thread creation, |
63 | * initialization (i.e. thread creation, |
64 | * userspace initialization etc.). |
64 | * userspace initialization etc.). |
65 | * |
65 | * |
66 | * @param arg Not used. |
66 | * @param arg Not used. |
67 | */ |
67 | */ |
68 | void kinit(void *arg) |
68 | void kinit(void *arg) |
69 | { |
69 | { |
70 | thread_t *t; |
70 | thread_t *t; |
71 | task_t *utask; |
71 | task_t *utask; |
72 | 72 | ||
73 | interrupts_disable(); |
73 | interrupts_disable(); |
74 | 74 | ||
75 | #ifdef CONFIG_SMP |
75 | #ifdef CONFIG_SMP |
76 | if (config.cpu_count > 1) { |
76 | if (config.cpu_count > 1) { |
77 | /* |
77 | /* |
78 | * Create the kmp thread and wait for its completion. |
78 | * Create the kmp thread and wait for its completion. |
79 | * cpu1 through cpuN-1 will come up consecutively and |
79 | * cpu1 through cpuN-1 will come up consecutively and |
80 | * not mess together with kcpulb threads. |
80 | * not mess together with kcpulb threads. |
81 | * Just a beautification. |
81 | * Just a beautification. |
82 | */ |
82 | */ |
83 | if ((t = thread_create(kmp, NULL, TASK, 0))) { |
83 | if ((t = thread_create(kmp, NULL, TASK, 0))) { |
84 | spinlock_lock(&t->lock); |
84 | spinlock_lock(&t->lock); |
85 | t->flags |= X_WIRED; |
85 | t->flags |= X_WIRED; |
86 | t->cpu = &cpus[0]; |
86 | t->cpu = &cpus[0]; |
87 | spinlock_unlock(&t->lock); |
87 | spinlock_unlock(&t->lock); |
88 | thread_ready(t); |
88 | thread_ready(t); |
89 | waitq_sleep(&kmp_completion_wq); |
89 | waitq_sleep(&kmp_completion_wq); |
90 | } |
90 | } |
91 | else panic("thread_create/kmp\n"); |
91 | else panic("thread_create/kmp\n"); |
92 | } |
92 | } |
93 | #endif /* CONFIG_SMP */ |
93 | #endif /* CONFIG_SMP */ |
94 | /* |
94 | /* |
95 | * Now that all CPUs are up, we can report what we've found. |
95 | * Now that all CPUs are up, we can report what we've found. |
96 | */ |
96 | */ |
97 | cpu_list(); |
97 | cpu_list(); |
98 | 98 | ||
99 | #ifdef CONFIG_SMP |
99 | #ifdef CONFIG_SMP |
100 | if (config.cpu_count > 1) { |
100 | if (config.cpu_count > 1) { |
101 | int i; |
101 | int i; |
102 | 102 | ||
103 | /* |
103 | /* |
104 | * For each CPU, create its load balancing thread. |
104 | * For each CPU, create its load balancing thread. |
105 | */ |
105 | */ |
106 | for (i = 0; i < config.cpu_count; i++) { |
106 | for (i = 0; i < config.cpu_count; i++) { |
107 | 107 | ||
108 | if ((t = thread_create(kcpulb, NULL, TASK, 0))) { |
108 | if ((t = thread_create(kcpulb, NULL, TASK, 0))) { |
109 | spinlock_lock(&t->lock); |
109 | spinlock_lock(&t->lock); |
110 | t->flags |= X_WIRED; |
110 | t->flags |= X_WIRED; |
111 | t->cpu = &cpus[i]; |
111 | t->cpu = &cpus[i]; |
112 | spinlock_unlock(&t->lock); |
112 | spinlock_unlock(&t->lock); |
113 | thread_ready(t); |
113 | thread_ready(t); |
114 | } |
114 | } |
115 | else panic("thread_create/kcpulb\n"); |
115 | else panic("thread_create/kcpulb\n"); |
116 | 116 | ||
117 | } |
117 | } |
118 | } |
118 | } |
119 | #endif /* CONFIG_SMP */ |
119 | #endif /* CONFIG_SMP */ |
120 | 120 | ||
121 | /* |
121 | /* |
122 | * At this point SMP, if present, is configured. |
122 | * At this point SMP, if present, is configured. |
123 | */ |
123 | */ |
124 | arch_post_smp_init(); |
124 | arch_post_smp_init(); |
125 | 125 | ||
126 | /* |
126 | /* |
127 | * Create kernel console. |
127 | * Create kernel console. |
128 | */ |
128 | */ |
129 | if ((t = thread_create(kconsole, "kconsole", TASK, 0))) |
129 | if ((t = thread_create(kconsole, "kconsole", TASK, 0))) |
130 | thread_ready(t); |
130 | thread_ready(t); |
131 | else |
131 | else |
132 | panic("thread_create/kconsole\n"); |
132 | panic("thread_create/kconsole\n"); |
133 | 133 | ||
134 | interrupts_enable(); |
134 | interrupts_enable(); |
135 | 135 | ||
136 | count_t i; |
136 | count_t i; |
137 | for (i = 0; i < init.cnt; i++) { |
137 | for (i = 0; i < init.cnt; i++) { |
138 | /* |
138 | /* |
139 | * Run user tasks. |
139 | * Run user tasks. |
140 | */ |
140 | */ |
141 | 141 | ||
142 | if (init.tasks[i].addr % FRAME_SIZE) |
142 | if (init.tasks[i].addr % FRAME_SIZE) |
143 | panic("init[%d].addr is not frame aligned", i); |
143 | panic("init[%d].addr is not frame aligned", i); |
144 | 144 | ||
145 | utask = task_run_program((void *) init.tasks[i].addr); |
145 | utask = task_run_program((void *) init.tasks[i].addr); |
146 | if (utask) |
146 | if (utask) { |
- | 147 | if (!ipc_phone_0) |
|
147 | ipc_phone_0 = &utask->answerbox; |
148 | ipc_phone_0 = &utask->answerbox; |
148 | else |
149 | } else |
149 | printf("Userspace not started.\n"); |
150 | printf("Userspace not started.\n"); |
150 | } |
151 | } |
151 | 152 | ||
152 | #ifdef CONFIG_TEST |
153 | #ifdef CONFIG_TEST |
153 | test(); |
154 | test(); |
154 | #endif /* CONFIG_TEST */ |
155 | #endif /* CONFIG_TEST */ |
155 | 156 | ||
156 | if (!stdin) { |
157 | if (!stdin) { |
157 | while (1) { |
158 | while (1) { |
158 | thread_sleep(1); |
159 | thread_sleep(1); |
159 | printf("kinit... "); |
160 | printf("kinit... "); |
160 | } |
161 | } |
161 | } |
162 | } |
162 | 163 | ||
163 | } |
164 | } |
164 | 165 |