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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 <main/kconsole.h> |
30 | #include <main/kconsole.h> |
31 | #include <main/uinit.h> |
31 | #include <main/uinit.h> |
32 | #include <config.h> |
32 | #include <config.h> |
33 | #include <arch.h> |
33 | #include <arch.h> |
34 | #include <proc/scheduler.h> |
34 | #include <proc/scheduler.h> |
35 | #include <proc/task.h> |
35 | #include <proc/task.h> |
36 | #include <proc/thread.h> |
36 | #include <proc/thread.h> |
37 | #include <panic.h> |
37 | #include <panic.h> |
38 | #include <func.h> |
38 | #include <func.h> |
39 | #include <cpu.h> |
39 | #include <cpu.h> |
40 | #include <arch/asm.h> |
40 | #include <arch/asm.h> |
41 | #include <mm/page.h> |
41 | #include <mm/page.h> |
42 | #include <arch/mm/page.h> |
42 | #include <arch/mm/page.h> |
43 | #include <mm/vm.h> |
43 | #include <mm/vm.h> |
44 | #include <print.h> |
44 | #include <print.h> |
45 | #include <memstr.h> |
45 | #include <memstr.h> |
46 | 46 | ||
47 | #ifdef CONFIG_SMP |
47 | #ifdef CONFIG_SMP |
48 | #include <arch/smp/mps.h> |
48 | #include <arch/smp/mps.h> |
49 | #endif /* CONFIG_SMP */ |
49 | #endif /* CONFIG_SMP */ |
50 | 50 | ||
51 | #include <synch/waitq.h> |
51 | #include <synch/waitq.h> |
52 | #include <synch/spinlock.h> |
52 | #include <synch/spinlock.h> |
53 | 53 | ||
54 | #ifdef CONFIG_TEST |
54 | #ifdef CONFIG_TEST |
55 | #include <test.h> |
55 | #include <test.h> |
56 | #endif /* CONFIG_TEST */ |
56 | #endif /* CONFIG_TEST */ |
57 | 57 | ||
58 | #include <mm/frame.h> |
58 | #include <mm/frame.h> |
59 | 59 | ||
60 | void kinit(void *arg) |
60 | void kinit(void *arg) |
61 | { |
61 | { |
62 | vm_t *m; |
62 | vm_t *m; |
63 | vm_area_t *a; |
63 | vm_area_t *a; |
64 | task_t *u; |
64 | task_t *u; |
65 | thread_t *t; |
65 | thread_t *t; |
66 | int i; |
66 | int i; |
67 | 67 | ||
68 | interrupts_disable(); |
68 | interrupts_disable(); |
69 | 69 | ||
70 | #ifdef CONFIG_SMP |
70 | #ifdef CONFIG_SMP |
71 | if (config.cpu_count > 1) { |
71 | if (config.cpu_count > 1) { |
72 | /* |
72 | /* |
73 | * Create the kmp thread and wait for its completion. |
73 | * Create the kmp thread and wait for its completion. |
74 | * cpu1 through cpuN-1 will come up consecutively and |
74 | * cpu1 through cpuN-1 will come up consecutively and |
75 | * not mess together with kcpulb threads. |
75 | * not mess together with kcpulb threads. |
76 | * Just a beautification. |
76 | * Just a beautification. |
77 | */ |
77 | */ |
78 | if (t = thread_create(kmp, NULL, TASK, 0)) { |
78 | if (t = thread_create(kmp, NULL, TASK, 0)) { |
79 | spinlock_lock(&t->lock); |
79 | spinlock_lock(&t->lock); |
80 | t->flags |= X_WIRED; |
80 | t->flags |= X_WIRED; |
81 | t->cpu = &cpus[0]; |
81 | t->cpu = &cpus[0]; |
82 | spinlock_unlock(&t->lock); |
82 | spinlock_unlock(&t->lock); |
83 | thread_ready(t); |
83 | thread_ready(t); |
84 | waitq_sleep(&kmp_completion_wq); |
84 | waitq_sleep(&kmp_completion_wq); |
85 | } |
85 | } |
86 | else panic("thread_create/kmp\n"); |
86 | else panic("thread_create/kmp\n"); |
87 | } |
87 | } |
88 | #endif /* CONFIG_SMP */ |
88 | #endif /* CONFIG_SMP */ |
89 | /* |
89 | /* |
90 | * Now that all CPUs are up, we can report what we've found. |
90 | * Now that all CPUs are up, we can report what we've found. |
91 | */ |
91 | */ |
92 | for (i = 0; i < config.cpu_count; i++) { |
92 | for (i = 0; i < config.cpu_count; i++) { |
93 | if (cpus[i].active) |
93 | if (cpus[i].active) |
94 | cpu_print_report(&cpus[i]); |
94 | cpu_print_report(&cpus[i]); |
95 | else |
95 | else |
96 | printf("cpu%d: not active\n", i); |
96 | printf("cpu%d: not active\n", i); |
97 | } |
97 | } |
98 | 98 | ||
99 | #ifdef CONFIG_SMP |
99 | #ifdef CONFIG_SMP |
100 | if (config.cpu_count > 1) { |
100 | if (config.cpu_count > 1) { |
101 | /* |
101 | /* |
102 | * For each CPU, create its load balancing thread. |
102 | * For each CPU, create its load balancing thread. |
103 | */ |
103 | */ |
104 | for (i = 0; i < config.cpu_count; i++) { |
104 | for (i = 0; i < config.cpu_count; i++) { |
105 | 105 | ||
106 | if (t = thread_create(kcpulb, NULL, TASK, 0)) { |
106 | if (t = thread_create(kcpulb, NULL, TASK, 0)) { |
107 | spinlock_lock(&t->lock); |
107 | spinlock_lock(&t->lock); |
108 | t->flags |= X_WIRED; |
108 | t->flags |= X_WIRED; |
109 | t->cpu = &cpus[i]; |
109 | t->cpu = &cpus[i]; |
110 | spinlock_unlock(&t->lock); |
110 | spinlock_unlock(&t->lock); |
111 | thread_ready(t); |
111 | thread_ready(t); |
112 | } |
112 | } |
113 | else panic("thread_create/kcpulb\n"); |
113 | else panic("thread_create/kcpulb\n"); |
114 | 114 | ||
115 | } |
115 | } |
116 | } |
116 | } |
117 | #endif /* CONFIG_SMP */ |
117 | #endif /* CONFIG_SMP */ |
118 | 118 | ||
119 | /* |
119 | /* |
- | 120 | * At this point SMP, if present, is configured. |
|
- | 121 | */ |
|
- | 122 | arch_post_smp_init(); |
|
- | 123 | ||
- | 124 | /* |
|
120 | * Create kernel console. |
125 | * Create kernel console. |
121 | */ |
126 | */ |
122 | if (t = thread_create(kconsole, NULL, TASK, 0)) |
127 | if (t = thread_create(kconsole, NULL, TASK, 0)) |
123 | thread_ready(t); |
128 | thread_ready(t); |
124 | else panic("thread_create/kconsole\n"); |
129 | else panic("thread_create/kconsole\n"); |
125 | 130 | ||
126 | interrupts_enable(); |
131 | interrupts_enable(); |
127 | 132 | ||
128 | #ifdef CONFIG_USERSPACE |
133 | #ifdef CONFIG_USERSPACE |
129 | /* |
134 | /* |
130 | * Create the first user task. |
135 | * Create the first user task. |
131 | */ |
136 | */ |
132 | m = vm_create(NULL); |
137 | m = vm_create(NULL); |
133 | if (!m) |
138 | if (!m) |
134 | panic("vm_create\n"); |
139 | panic("vm_create\n"); |
135 | u = task_create(m); |
140 | u = task_create(m); |
136 | if (!u) |
141 | if (!u) |
137 | panic("task_create\n"); |
142 | panic("task_create\n"); |
138 | t = thread_create(uinit, NULL, u, THREAD_USER_STACK); |
143 | t = thread_create(uinit, NULL, u, THREAD_USER_STACK); |
139 | if (!t) |
144 | if (!t) |
140 | panic("thread_create\n"); |
145 | panic("thread_create\n"); |
141 | 146 | ||
142 | /* |
147 | /* |
143 | * Create the text vm_area and copy the userspace code there. |
148 | * Create the text vm_area and copy the userspace code there. |
144 | */ |
149 | */ |
145 | a = vm_area_create(m, VMA_TEXT, 1, UTEXT_ADDRESS); |
150 | a = vm_area_create(m, VMA_TEXT, 1, UTEXT_ADDRESS); |
146 | if (!a) |
151 | if (!a) |
147 | panic("vm_area_create: vm_text\n"); |
152 | panic("vm_area_create: vm_text\n"); |
148 | vm_area_map(a, m); |
153 | vm_area_map(a, m); |
149 | memcpy((void *) PA2KA(a->mapping[0]), (void *) utext, utext_size < PAGE_SIZE ? utext_size : PAGE_SIZE); |
154 | memcpy((void *) PA2KA(a->mapping[0]), (void *) utext, utext_size < PAGE_SIZE ? utext_size : PAGE_SIZE); |
150 | 155 | ||
151 | /* |
156 | /* |
152 | * Create the data vm_area. |
157 | * Create the data vm_area. |
153 | */ |
158 | */ |
154 | a = vm_area_create(m, VMA_STACK, 1, USTACK_ADDRESS); |
159 | a = vm_area_create(m, VMA_STACK, 1, USTACK_ADDRESS); |
155 | if (!a) |
160 | if (!a) |
156 | panic("vm_area_create: vm_stack\n"); |
161 | panic("vm_area_create: vm_stack\n"); |
157 | vm_area_map(a, m); |
162 | vm_area_map(a, m); |
158 | 163 | ||
159 | thread_ready(t); |
164 | thread_ready(t); |
160 | #endif /* CONFIG_USERSPACE */ |
165 | #endif /* CONFIG_USERSPACE */ |
161 | 166 | ||
162 | #ifdef CONFIG_TEST |
167 | #ifdef CONFIG_TEST |
163 | test(); |
168 | test(); |
164 | #endif /* CONFIG_TEST */ |
169 | #endif /* CONFIG_TEST */ |
165 | 170 | ||
166 | while (1) { |
171 | while (1) { |
167 | thread_sleep(60); |
172 | thread_sleep(1); |
168 | printf("kinit... "); |
173 | printf("kinit... "); |
169 | } |
174 | } |
170 | 175 | ||
171 | } |
176 | } |
172 | 177 |