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| Rev | Author | Line No. | Line |
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| 1 | jermar | 1 | /* |
| 2 | * Copyright (C) 2001-2004 Jakub Jermar |
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| 3 | * All rights reserved. |
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| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * |
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| 9 | * - Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * - Redistributions in binary form must reproduce the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer in the |
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| 13 | * documentation and/or other materials provided with the distribution. |
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| 14 | * - The name of the author may not be used to endorse or promote products |
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| 15 | * derived from this software without specific prior written permission. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 27 | */ |
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| 28 | |||
| 510 | jermar | 29 | #include <main/kinit.h> |
| 1 | jermar | 30 | #include <config.h> |
| 31 | #include <arch.h> |
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| 32 | #include <proc/scheduler.h> |
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| 33 | #include <proc/task.h> |
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| 34 | #include <proc/thread.h> |
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| 35 | #include <panic.h> |
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| 36 | #include <func.h> |
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| 37 | #include <cpu.h> |
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| 38 | #include <arch/asm.h> |
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| 39 | #include <mm/page.h> |
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| 40 | #include <arch/mm/page.h> |
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| 703 | jermar | 41 | #include <mm/as.h> |
| 517 | jermar | 42 | #include <mm/frame.h> |
| 195 | vana | 43 | #include <print.h> |
| 236 | jermar | 44 | #include <memstr.h> |
| 517 | jermar | 45 | #include <console/console.h> |
| 578 | palkovsky | 46 | #include <interrupt.h> |
| 518 | jermar | 47 | #include <console/kconsole.h> |
| 1 | jermar | 48 | |
| 458 | decky | 49 | #ifdef CONFIG_SMP |
| 34 | jermar | 50 | #include <arch/smp/mps.h> |
| 458 | decky | 51 | #endif /* CONFIG_SMP */ |
| 1 | jermar | 52 | |
| 53 | #include <synch/waitq.h> |
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| 54 | #include <synch/spinlock.h> |
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| 55 | |||
| 459 | decky | 56 | #ifdef CONFIG_TEST |
| 1 | jermar | 57 | #include <test.h> |
| 459 | decky | 58 | #endif /* CONFIG_TEST */ |
| 1 | jermar | 59 | |
| 523 | jermar | 60 | /** Kernel initialization thread. |
| 61 | * |
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| 62 | * kinit takes care of higher level kernel |
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| 63 | * initialization (i.e. thread creation, |
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| 64 | * userspace initialization etc.). |
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| 65 | * |
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| 66 | * @param arg Not used. |
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| 67 | */ |
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| 1 | jermar | 68 | void kinit(void *arg) |
| 69 | { |
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| 625 | palkovsky | 70 | thread_t *t; |
| 1027 | palkovsky | 71 | task_t *utask; |
| 1 | jermar | 72 | |
| 413 | jermar | 73 | interrupts_disable(); |
| 1 | jermar | 74 | |
| 458 | decky | 75 | #ifdef CONFIG_SMP |
| 1 | jermar | 76 | if (config.cpu_count > 1) { |
| 77 | /* |
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| 78 | * Create the kmp thread and wait for its completion. |
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| 79 | * cpu1 through cpuN-1 will come up consecutively and |
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| 430 | jermar | 80 | * not mess together with kcpulb threads. |
| 1 | jermar | 81 | * Just a beautification. |
| 82 | */ |
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| 615 | palkovsky | 83 | if ((t = thread_create(kmp, NULL, TASK, 0))) { |
| 1 | jermar | 84 | spinlock_lock(&t->lock); |
| 85 | t->flags |= X_WIRED; |
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| 86 | t->cpu = &cpus[0]; |
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| 87 | spinlock_unlock(&t->lock); |
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| 88 | thread_ready(t); |
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| 89 | waitq_sleep(&kmp_completion_wq); |
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| 90 | } |
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| 510 | jermar | 91 | else panic("thread_create/kmp\n"); |
| 1 | jermar | 92 | } |
| 458 | decky | 93 | #endif /* CONFIG_SMP */ |
| 1 | jermar | 94 | /* |
| 95 | * Now that all CPUs are up, we can report what we've found. |
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| 96 | */ |
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| 673 | jermar | 97 | cpu_list(); |
| 1 | jermar | 98 | |
| 458 | decky | 99 | #ifdef CONFIG_SMP |
| 1 | jermar | 100 | if (config.cpu_count > 1) { |
| 673 | jermar | 101 | int i; |
| 102 | |||
| 125 | jermar | 103 | /* |
| 1 | jermar | 104 | * For each CPU, create its load balancing thread. |
| 105 | */ |
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| 106 | for (i = 0; i < config.cpu_count; i++) { |
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| 107 | |||
| 615 | palkovsky | 108 | if ((t = thread_create(kcpulb, NULL, TASK, 0))) { |
| 1 | jermar | 109 | spinlock_lock(&t->lock); |
| 110 | t->flags |= X_WIRED; |
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| 111 | t->cpu = &cpus[i]; |
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| 112 | spinlock_unlock(&t->lock); |
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| 113 | thread_ready(t); |
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| 114 | } |
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| 510 | jermar | 115 | else panic("thread_create/kcpulb\n"); |
| 1 | jermar | 116 | |
| 117 | } |
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| 118 | } |
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| 458 | decky | 119 | #endif /* CONFIG_SMP */ |
| 1 | jermar | 120 | |
| 510 | jermar | 121 | /* |
| 512 | jermar | 122 | * At this point SMP, if present, is configured. |
| 123 | */ |
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| 124 | arch_post_smp_init(); |
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| 125 | |||
| 126 | /* |
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| 510 | jermar | 127 | * Create kernel console. |
| 128 | */ |
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| 615 | palkovsky | 129 | if ((t = thread_create(kconsole, "kconsole", TASK, 0))) |
| 510 | jermar | 130 | thread_ready(t); |
| 718 | decky | 131 | else |
| 132 | panic("thread_create/kconsole\n"); |
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| 510 | jermar | 133 | |
| 413 | jermar | 134 | interrupts_enable(); |
| 1037 | decky | 135 | |
| 136 | count_t i; |
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| 137 | for (i = 0; i < init.cnt; i++) { |
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| 717 | decky | 138 | /* |
| 1037 | decky | 139 | * Run user tasks. |
| 717 | decky | 140 | */ |
| 718 | decky | 141 | |
| 1037 | decky | 142 | if (init.tasks[i].addr % FRAME_SIZE) |
| 143 | panic("init[%d].addr is not frame aligned", i); |
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| 794 | palkovsky | 144 | |
| 1037 | decky | 145 | utask = task_run_program((void *) init.tasks[i].addr); |
| 1040 | palkovsky | 146 | if (utask) { |
| 147 | if (!ipc_phone_0) |
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| 148 | ipc_phone_0 = &utask->answerbox; |
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| 149 | } else |
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| 973 | palkovsky | 150 | printf("Userspace not started.\n"); |
| 717 | decky | 151 | } |
| 1 | jermar | 152 | |
| 459 | decky | 153 | #ifdef CONFIG_TEST |
| 1 | jermar | 154 | test(); |
| 459 | decky | 155 | #endif /* CONFIG_TEST */ |
| 1 | jermar | 156 | |
| 517 | jermar | 157 | if (!stdin) { |
| 158 | while (1) { |
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| 159 | thread_sleep(1); |
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| 160 | printf("kinit... "); |
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| 161 | } |
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| 1 | jermar | 162 | } |
| 163 | |||
| 164 | } |