Rev 1248 | Rev 1341 | Go to most recent revision | Only display areas with differences | Regard whitespace | Details | Blame | Last modification | View Log | RSS feed
Rev 1248 | Rev 1297 | ||
---|---|---|---|
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; |
83 | task_t *utask; |
84 | 84 | ||
85 | interrupts_disable(); |
85 | interrupts_disable(); |
86 | 86 | ||
87 | #ifdef CONFIG_SMP |
87 | #ifdef CONFIG_SMP |
88 | if (config.cpu_count > 1) { |
88 | if (config.cpu_count > 1) { |
89 | /* |
89 | /* |
90 | * Create the kmp thread and wait for its completion. |
90 | * Create the kmp thread and wait for its completion. |
91 | * cpu1 through cpuN-1 will come up consecutively and |
91 | * cpu1 through cpuN-1 will come up consecutively and |
92 | * not mess together with kcpulb threads. |
92 | * not mess together with kcpulb threads. |
93 | * Just a beautification. |
93 | * Just a beautification. |
94 | */ |
94 | */ |
95 | if ((t = thread_create(kmp, NULL, TASK, 0, "kmp"))) { |
95 | if ((t = thread_create(kmp, NULL, TASK, 0, "kmp"))) { |
96 | spinlock_lock(&t->lock); |
96 | spinlock_lock(&t->lock); |
97 | t->flags |= X_WIRED; |
97 | t->flags |= X_WIRED; |
98 | t->cpu = &cpus[0]; |
98 | t->cpu = &cpus[0]; |
99 | spinlock_unlock(&t->lock); |
99 | spinlock_unlock(&t->lock); |
100 | thread_ready(t); |
100 | thread_ready(t); |
101 | waitq_sleep(&kmp_completion_wq); |
101 | waitq_sleep(&kmp_completion_wq); |
102 | } |
102 | } |
103 | else panic("thread_create/kmp\n"); |
103 | else panic("thread_create/kmp\n"); |
104 | } |
104 | } |
105 | #endif /* CONFIG_SMP */ |
105 | #endif /* CONFIG_SMP */ |
106 | /* |
106 | /* |
107 | * Now that all CPUs are up, we can report what we've found. |
107 | * Now that all CPUs are up, we can report what we've found. |
108 | */ |
108 | */ |
109 | cpu_list(); |
109 | cpu_list(); |
110 | 110 | ||
111 | #ifdef CONFIG_SMP |
111 | #ifdef CONFIG_SMP |
112 | if (config.cpu_count > 1) { |
112 | if (config.cpu_count > 1) { |
113 | int i; |
113 | int i; |
114 | 114 | ||
115 | /* |
115 | /* |
116 | * For each CPU, create its load balancing thread. |
116 | * For each CPU, create its load balancing thread. |
117 | */ |
117 | */ |
118 | for (i = 0; i < config.cpu_count; i++) { |
118 | for (i = 0; i < config.cpu_count; i++) { |
119 | 119 | ||
120 | if ((t = thread_create(kcpulb, NULL, TASK, 0, "kcpulb"))) { |
120 | if ((t = thread_create(kcpulb, NULL, TASK, 0, "kcpulb"))) { |
121 | spinlock_lock(&t->lock); |
121 | spinlock_lock(&t->lock); |
122 | t->flags |= X_WIRED; |
122 | t->flags |= X_WIRED; |
123 | t->cpu = &cpus[i]; |
123 | t->cpu = &cpus[i]; |
124 | spinlock_unlock(&t->lock); |
124 | spinlock_unlock(&t->lock); |
125 | thread_ready(t); |
125 | thread_ready(t); |
126 | } |
126 | } |
127 | else panic("thread_create/kcpulb\n"); |
127 | else panic("thread_create/kcpulb\n"); |
128 | 128 | ||
129 | } |
129 | } |
130 | } |
130 | } |
131 | #endif /* CONFIG_SMP */ |
131 | #endif /* CONFIG_SMP */ |
132 | 132 | ||
133 | /* |
133 | /* |
134 | * At this point SMP, if present, is configured. |
134 | * At this point SMP, if present, is configured. |
135 | */ |
135 | */ |
136 | arch_post_smp_init(); |
136 | arch_post_smp_init(); |
137 | 137 | ||
138 | /* |
138 | /* |
139 | * Create kernel console. |
139 | * Create kernel console. |
140 | */ |
140 | */ |
141 | if ((t = thread_create(kconsole, "kconsole", TASK, 0, "kconsole"))) |
141 | if ((t = thread_create(kconsole, "kconsole", TASK, 0, "kconsole"))) |
142 | thread_ready(t); |
142 | thread_ready(t); |
143 | else |
143 | else |
144 | panic("thread_create/kconsole\n"); |
144 | panic("thread_create/kconsole\n"); |
145 | 145 | ||
146 | interrupts_enable(); |
146 | interrupts_enable(); |
147 | 147 | ||
148 | count_t i; |
148 | count_t i; |
149 | for (i = 0; i < init.cnt; i++) { |
149 | for (i = 0; i < init.cnt; i++) { |
150 | /* |
150 | /* |
151 | * Run user tasks. |
151 | * Run user tasks. |
152 | */ |
152 | */ |
153 | 153 | ||
154 | if (init.tasks[i].addr % FRAME_SIZE) |
154 | if (init.tasks[i].addr % FRAME_SIZE) |
155 | panic("init[%d].addr is not frame aligned", i); |
155 | panic("init[%d].addr is not frame aligned", i); |
156 | 156 | ||
157 | utask = task_run_program((void *) init.tasks[i].addr, "USPACE"); |
157 | utask = task_run_program((void *) init.tasks[i].addr, "USPACE"); |
158 | if (utask) { |
158 | if (utask) { |
159 | /* |
159 | /* |
160 | * Set capabilities to init userspace tasks. |
160 | * Set capabilities to init userspace tasks. |
161 | */ |
161 | */ |
162 | cap_set(utask, CAP_CAP | CAP_MEM_MANAGER | CAP_IO_MANAGER); |
162 | cap_set(utask, CAP_CAP | CAP_MEM_MANAGER | CAP_IO_MANAGER | CAP_PREEMPT_CONTROL); |
163 | 163 | ||
164 | if (!ipc_phone_0) |
164 | if (!ipc_phone_0) |
165 | ipc_phone_0 = &utask->answerbox; |
165 | ipc_phone_0 = &utask->answerbox; |
166 | } else |
166 | } else |
167 | printf("Init task %zd not started.\n", i); |
167 | printf("Init task %zd not started.\n", i); |
168 | } |
168 | } |
169 | 169 | ||
170 | #ifdef CONFIG_TEST |
170 | #ifdef CONFIG_TEST |
171 | test(); |
171 | test(); |
172 | #endif /* CONFIG_TEST */ |
172 | #endif /* CONFIG_TEST */ |
173 | 173 | ||
174 | if (!stdin) { |
174 | if (!stdin) { |
175 | while (1) { |
175 | while (1) { |
176 | thread_sleep(1); |
176 | thread_sleep(1); |
177 | printf("kinit... "); |
177 | printf("kinit... "); |
178 | } |
178 | } |
179 | } |
179 | } |
180 | 180 | ||
181 | } |
181 | } |
182 | 182 |