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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 | #include <security/cap.h> |
48 | #include <security/cap.h> |
49 | 49 | ||
50 | #ifdef CONFIG_SMP |
50 | #ifdef CONFIG_SMP |
51 | #include <arch/smp/mps.h> |
51 | #include <arch/smp/mps.h> |
52 | #endif /* CONFIG_SMP */ |
52 | #endif /* CONFIG_SMP */ |
53 | 53 | ||
54 | #include <synch/waitq.h> |
54 | #include <synch/waitq.h> |
55 | #include <synch/spinlock.h> |
55 | #include <synch/spinlock.h> |
56 | 56 | ||
57 | #ifdef CONFIG_TEST |
57 | #ifdef CONFIG_TEST |
58 | #include <test.h> |
58 | #include <test.h> |
59 | #endif /* CONFIG_TEST */ |
59 | #endif /* CONFIG_TEST */ |
60 | 60 | ||
61 | /** Kernel initialization thread. |
61 | /** Kernel initialization thread. |
62 | * |
62 | * |
63 | * kinit takes care of higher level kernel |
63 | * kinit takes care of higher level kernel |
64 | * initialization (i.e. thread creation, |
64 | * initialization (i.e. thread creation, |
65 | * userspace initialization etc.). |
65 | * userspace initialization etc.). |
66 | * |
66 | * |
67 | * @param arg Not used. |
67 | * @param arg Not used. |
68 | */ |
68 | */ |
69 | void kinit(void *arg) |
69 | void kinit(void *arg) |
70 | { |
70 | { |
71 | thread_t *t; |
71 | thread_t *t; |
72 | task_t *utask; |
72 | task_t *utask; |
73 | 73 | ||
74 | interrupts_disable(); |
74 | interrupts_disable(); |
75 | 75 | ||
76 | #ifdef CONFIG_SMP |
76 | #ifdef CONFIG_SMP |
77 | if (config.cpu_count > 1) { |
77 | if (config.cpu_count > 1) { |
78 | /* |
78 | /* |
79 | * Create the kmp thread and wait for its completion. |
79 | * Create the kmp thread and wait for its completion. |
80 | * cpu1 through cpuN-1 will come up consecutively and |
80 | * cpu1 through cpuN-1 will come up consecutively and |
81 | * not mess together with kcpulb threads. |
81 | * not mess together with kcpulb threads. |
82 | * Just a beautification. |
82 | * Just a beautification. |
83 | */ |
83 | */ |
84 | if ((t = thread_create(kmp, NULL, TASK, 0, "kmp"))) { |
84 | if ((t = thread_create(kmp, NULL, TASK, 0, "kmp"))) { |
85 | spinlock_lock(&t->lock); |
85 | spinlock_lock(&t->lock); |
86 | t->flags |= X_WIRED; |
86 | t->flags |= X_WIRED; |
87 | t->cpu = &cpus[0]; |
87 | t->cpu = &cpus[0]; |
88 | spinlock_unlock(&t->lock); |
88 | spinlock_unlock(&t->lock); |
89 | thread_ready(t); |
89 | thread_ready(t); |
90 | waitq_sleep(&kmp_completion_wq); |
90 | waitq_sleep(&kmp_completion_wq); |
91 | } |
91 | } |
92 | else panic("thread_create/kmp\n"); |
92 | else panic("thread_create/kmp\n"); |
93 | } |
93 | } |
94 | #endif /* CONFIG_SMP */ |
94 | #endif /* CONFIG_SMP */ |
95 | /* |
95 | /* |
96 | * Now that all CPUs are up, we can report what we've found. |
96 | * Now that all CPUs are up, we can report what we've found. |
97 | */ |
97 | */ |
98 | cpu_list(); |
98 | cpu_list(); |
99 | 99 | ||
100 | #ifdef CONFIG_SMP |
100 | #ifdef CONFIG_SMP |
101 | if (config.cpu_count > 1) { |
101 | if (config.cpu_count > 1) { |
102 | int i; |
102 | int i; |
103 | 103 | ||
104 | /* |
104 | /* |
105 | * For each CPU, create its load balancing thread. |
105 | * For each CPU, create its load balancing thread. |
106 | */ |
106 | */ |
107 | for (i = 0; i < config.cpu_count; i++) { |
107 | for (i = 0; i < config.cpu_count; i++) { |
108 | 108 | ||
109 | if ((t = thread_create(kcpulb, NULL, TASK, 0, "kcpulb"))) { |
109 | if ((t = thread_create(kcpulb, NULL, TASK, 0, "kcpulb"))) { |
110 | spinlock_lock(&t->lock); |
110 | spinlock_lock(&t->lock); |
111 | t->flags |= X_WIRED; |
111 | t->flags |= X_WIRED; |
112 | t->cpu = &cpus[i]; |
112 | t->cpu = &cpus[i]; |
113 | spinlock_unlock(&t->lock); |
113 | spinlock_unlock(&t->lock); |
114 | thread_ready(t); |
114 | thread_ready(t); |
115 | } |
115 | } |
116 | else panic("thread_create/kcpulb\n"); |
116 | else panic("thread_create/kcpulb\n"); |
117 | 117 | ||
118 | } |
118 | } |
119 | } |
119 | } |
120 | #endif /* CONFIG_SMP */ |
120 | #endif /* CONFIG_SMP */ |
121 | 121 | ||
122 | /* |
122 | /* |
123 | * At this point SMP, if present, is configured. |
123 | * At this point SMP, if present, is configured. |
124 | */ |
124 | */ |
125 | arch_post_smp_init(); |
125 | arch_post_smp_init(); |
126 | 126 | ||
127 | /* |
127 | /* |
128 | * Create kernel console. |
128 | * Create kernel console. |
129 | */ |
129 | */ |
130 | if ((t = thread_create(kconsole, "kconsole", TASK, 0, "kconsole"))) |
130 | if ((t = thread_create(kconsole, "kconsole", TASK, 0, "kconsole"))) |
131 | thread_ready(t); |
131 | thread_ready(t); |
132 | else |
132 | else |
133 | panic("thread_create/kconsole\n"); |
133 | panic("thread_create/kconsole\n"); |
134 | 134 | ||
135 | interrupts_enable(); |
135 | interrupts_enable(); |
136 | 136 | ||
137 | count_t i; |
137 | count_t i; |
138 | for (i = 0; i < init.cnt; i++) { |
138 | for (i = 0; i < init.cnt; i++) { |
139 | /* |
139 | /* |
140 | * Run user tasks. |
140 | * Run user tasks. |
141 | */ |
141 | */ |
142 | 142 | ||
143 | if (init.tasks[i].addr % FRAME_SIZE) |
143 | if (init.tasks[i].addr % FRAME_SIZE) |
144 | panic("init[%d].addr is not frame aligned", i); |
144 | panic("init[%d].addr is not frame aligned", i); |
145 | 145 | ||
146 | utask = task_run_program((void *) init.tasks[i].addr, "USPACE"); |
146 | utask = task_run_program((void *) init.tasks[i].addr, "USPACE"); |
147 | if (utask) { |
147 | if (utask) { |
148 | /* |
148 | /* |
149 | * Set capabilities to init userspace tasks. |
149 | * Set capabilities to init userspace tasks. |
150 | */ |
150 | */ |
151 | cap_set(utask, CAP_CAP | CAP_MEM_MANAGER | CAP_IO_MANAGER); |
151 | cap_set(utask, CAP_CAP | CAP_MEM_MANAGER | CAP_IO_MANAGER); |
152 | 152 | ||
153 | if (!ipc_phone_0) |
153 | if (!ipc_phone_0) |
154 | ipc_phone_0 = &utask->answerbox; |
154 | ipc_phone_0 = &utask->answerbox; |
155 | } else |
155 | } else |
156 | printf("Init task %d not started.\n", i); |
156 | printf("Init task %zd not started.\n", i); |
157 | } |
157 | } |
158 | 158 | ||
159 | #ifdef CONFIG_TEST |
159 | #ifdef CONFIG_TEST |
160 | test(); |
160 | test(); |
161 | #endif /* CONFIG_TEST */ |
161 | #endif /* CONFIG_TEST */ |
162 | 162 | ||
163 | if (!stdin) { |
163 | if (!stdin) { |
164 | while (1) { |
164 | while (1) { |
165 | thread_sleep(1); |
165 | thread_sleep(1); |
166 | printf("kinit... "); |
166 | printf("kinit... "); |
167 | } |
167 | } |
168 | } |
168 | } |
169 | 169 | ||
170 | } |
170 | } |
171 | 171 |