Rev 3060 | Rev 3222 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
1 | jermar | 1 | /* |
2071 | jermar | 2 | * Copyright (c) 2001-2004 Jakub Jermar |
1 | jermar | 3 | * All rights reserved. |
4 | * |
||
5 | * Redistribution and use in source and binary forms, with or without |
||
6 | * modification, are permitted provided that the following conditions |
||
7 | * are met: |
||
8 | * |
||
9 | * - Redistributions of source code must retain the above copyright |
||
10 | * notice, this list of conditions and the following disclaimer. |
||
11 | * - Redistributions in binary form must reproduce the above copyright |
||
12 | * notice, this list of conditions and the following disclaimer in the |
||
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 |
||
15 | * derived from this software without specific prior written permission. |
||
16 | * |
||
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 |
||
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
||
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
||
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
||
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 |
||
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 |
||
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||
27 | */ |
||
28 | |||
1729 | decky | 29 | /** @addtogroup main |
1702 | cejka | 30 | * @{ |
31 | */ |
||
32 | |||
1248 | jermar | 33 | /** |
1702 | cejka | 34 | * @file |
1248 | jermar | 35 | * @brief Kernel initialization thread. |
36 | * |
||
37 | * This file contains kinit kernel thread which carries out |
||
38 | * high level system initialization. |
||
39 | * |
||
40 | * This file is responsible for finishing SMP configuration |
||
41 | * and creation of userspace init tasks. |
||
42 | */ |
||
43 | |||
510 | jermar | 44 | #include <main/kinit.h> |
1 | jermar | 45 | #include <config.h> |
46 | #include <arch.h> |
||
47 | #include <proc/scheduler.h> |
||
48 | #include <proc/task.h> |
||
49 | #include <proc/thread.h> |
||
50 | #include <panic.h> |
||
51 | #include <func.h> |
||
52 | #include <cpu.h> |
||
53 | #include <arch/asm.h> |
||
54 | #include <mm/page.h> |
||
55 | #include <arch/mm/page.h> |
||
703 | jermar | 56 | #include <mm/as.h> |
517 | jermar | 57 | #include <mm/frame.h> |
195 | vana | 58 | #include <print.h> |
236 | jermar | 59 | #include <memstr.h> |
517 | jermar | 60 | #include <console/console.h> |
578 | palkovsky | 61 | #include <interrupt.h> |
518 | jermar | 62 | #include <console/kconsole.h> |
1174 | jermar | 63 | #include <security/cap.h> |
2000 | decky | 64 | #include <lib/rd.h> |
2089 | decky | 65 | #include <ipc/ipc.h> |
1 | jermar | 66 | |
458 | decky | 67 | #ifdef CONFIG_SMP |
1901 | jermar | 68 | #include <smp/smp.h> |
458 | decky | 69 | #endif /* CONFIG_SMP */ |
1 | jermar | 70 | |
71 | #include <synch/waitq.h> |
||
72 | #include <synch/spinlock.h> |
||
73 | |||
523 | jermar | 74 | /** Kernel initialization thread. |
75 | * |
||
76 | * kinit takes care of higher level kernel |
||
77 | * initialization (i.e. thread creation, |
||
78 | * userspace initialization etc.). |
||
79 | * |
||
80 | * @param arg Not used. |
||
81 | */ |
||
1 | jermar | 82 | void kinit(void *arg) |
83 | { |
||
625 | palkovsky | 84 | thread_t *t; |
1 | jermar | 85 | |
1576 | jermar | 86 | /* |
87 | * Detach kinit as nobody will call thread_join_timeout() on it. |
||
88 | */ |
||
89 | thread_detach(THREAD); |
||
90 | |||
413 | jermar | 91 | interrupts_disable(); |
1 | jermar | 92 | |
458 | decky | 93 | #ifdef CONFIG_SMP |
1 | jermar | 94 | if (config.cpu_count > 1) { |
1901 | jermar | 95 | waitq_initialize(&ap_completion_wq); |
1 | jermar | 96 | /* |
97 | * Create the kmp thread and wait for its completion. |
||
98 | * cpu1 through cpuN-1 will come up consecutively and |
||
430 | jermar | 99 | * not mess together with kcpulb threads. |
1 | jermar | 100 | * Just a beautification. |
101 | */ |
||
2087 | jermar | 102 | if ((t = thread_create(kmp, NULL, TASK, THREAD_FLAG_WIRED, |
103 | "kmp", true))) { |
||
1 | jermar | 104 | spinlock_lock(&t->lock); |
105 | t->cpu = &cpus[0]; |
||
106 | spinlock_unlock(&t->lock); |
||
107 | thread_ready(t); |
||
1729 | decky | 108 | } else |
1576 | jermar | 109 | panic("thread_create/kmp\n"); |
110 | thread_join(t); |
||
1581 | jermar | 111 | thread_detach(t); |
1 | jermar | 112 | } |
458 | decky | 113 | #endif /* CONFIG_SMP */ |
1 | jermar | 114 | /* |
115 | * Now that all CPUs are up, we can report what we've found. |
||
116 | */ |
||
673 | jermar | 117 | cpu_list(); |
1 | jermar | 118 | |
458 | decky | 119 | #ifdef CONFIG_SMP |
1 | jermar | 120 | if (config.cpu_count > 1) { |
2223 | decky | 121 | count_t i; |
673 | jermar | 122 | |
125 | jermar | 123 | /* |
1 | jermar | 124 | * For each CPU, create its load balancing thread. |
125 | */ |
||
126 | for (i = 0; i < config.cpu_count; i++) { |
||
127 | |||
2087 | jermar | 128 | if ((t = thread_create(kcpulb, NULL, TASK, |
129 | THREAD_FLAG_WIRED, "kcpulb", true))) { |
||
1 | jermar | 130 | spinlock_lock(&t->lock); |
131 | t->cpu = &cpus[i]; |
||
132 | spinlock_unlock(&t->lock); |
||
133 | thread_ready(t); |
||
1729 | decky | 134 | } else |
135 | panic("thread_create/kcpulb\n"); |
||
1 | jermar | 136 | |
137 | } |
||
138 | } |
||
458 | decky | 139 | #endif /* CONFIG_SMP */ |
1 | jermar | 140 | |
510 | jermar | 141 | /* |
512 | jermar | 142 | * At this point SMP, if present, is configured. |
143 | */ |
||
144 | arch_post_smp_init(); |
||
145 | |||
146 | /* |
||
510 | jermar | 147 | * Create kernel console. |
148 | */ |
||
3181 | jermar | 149 | t = thread_create(kconsole, (void *) "kconsole", TASK, 0, "kconsole", |
150 | false); |
||
2087 | jermar | 151 | if (t) |
510 | jermar | 152 | thread_ready(t); |
718 | decky | 153 | else |
154 | panic("thread_create/kconsole\n"); |
||
510 | jermar | 155 | |
413 | jermar | 156 | interrupts_enable(); |
3060 | decky | 157 | |
158 | /* |
||
159 | * Create user tasks, load RAM disk images. |
||
160 | */ |
||
1037 | decky | 161 | count_t i; |
3060 | decky | 162 | thread_t *threads[CONFIG_INIT_TASKS]; |
163 | |||
1037 | decky | 164 | for (i = 0; i < init.cnt; i++) { |
1999 | decky | 165 | if (init.tasks[i].addr % FRAME_SIZE) { |
3060 | decky | 166 | printf("init[%" PRIc "].addr is not frame aligned", i); |
1999 | decky | 167 | continue; |
168 | } |
||
794 | palkovsky | 169 | |
3181 | jermar | 170 | threads[i] = thread_create_program((void *) init.tasks[i].addr, |
171 | "uspace"); |
||
2445 | decky | 172 | |
3060 | decky | 173 | if (threads[i] != NULL) { |
1174 | jermar | 174 | /* |
175 | * Set capabilities to init userspace tasks. |
||
176 | */ |
||
3060 | decky | 177 | cap_set(threads[i]->task, CAP_CAP | CAP_MEM_MANAGER | |
2087 | jermar | 178 | CAP_IO_MANAGER | CAP_PREEMPT_CONTROL | CAP_IRQ_REG); |
1174 | jermar | 179 | |
3060 | decky | 180 | if (!ipc_phone_0) |
181 | ipc_phone_0 = &threads[i]->task->answerbox; |
||
1999 | decky | 182 | } else { |
3029 | decky | 183 | int rd = init_rd((rd_header_t *) init.tasks[i].addr, |
2087 | jermar | 184 | init.tasks[i].size); |
1999 | decky | 185 | |
2002 | decky | 186 | if (rd != RE_OK) |
3181 | jermar | 187 | printf("Init binary %" PRIc " not used, error " |
188 | "code %d.\n", i, rd); |
||
1999 | decky | 189 | } |
717 | decky | 190 | } |
3060 | decky | 191 | |
192 | /* |
||
193 | * Run user tasks with reasonable delays |
||
194 | */ |
||
195 | for (i = 0; i < init.cnt; i++) { |
||
196 | if (threads[i] != NULL) { |
||
197 | thread_usleep(50000); |
||
198 | thread_ready(threads[i]); |
||
199 | } |
||
200 | } |
||
1 | jermar | 201 | |
517 | jermar | 202 | if (!stdin) { |
203 | while (1) { |
||
204 | thread_sleep(1); |
||
205 | printf("kinit... "); |
||
206 | } |
||
1 | jermar | 207 | } |
208 | } |
||
1702 | cejka | 209 | |
1729 | decky | 210 | /** @} |
1702 | cejka | 211 | */ |