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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 | |||
| 29 | #include <config.h> |
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| 30 | #include <arch.h> |
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| 31 | #include <main/kinit.h> |
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| 32 | #include <main/uinit.h> |
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| 33 | #include <proc/scheduler.h> |
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| 34 | #include <proc/task.h> |
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| 35 | #include <proc/thread.h> |
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| 36 | #include <panic.h> |
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| 37 | #include <func.h> |
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| 38 | #include <cpu.h> |
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| 39 | #include <arch/asm.h> |
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| 40 | #include <mm/page.h> |
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| 41 | #include <arch/mm/page.h> |
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| 42 | #include <mm/vm.h> |
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| 195 | vana | 43 | #include <print.h> |
| 236 | jermar | 44 | #include <memstr.h> |
| 1 | jermar | 45 | |
| 46 | #ifdef __SMP__ |
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| 34 | jermar | 47 | #include <arch/smp/mps.h> |
| 1 | jermar | 48 | #endif /* __SMP__ */ |
| 49 | |||
| 50 | #include <synch/waitq.h> |
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| 51 | #include <synch/spinlock.h> |
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| 52 | |||
| 53 | #ifdef __TEST__ |
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| 54 | #include <test.h> |
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| 55 | #endif /* __TEST__ */ |
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| 56 | |||
| 391 | jermar | 57 | #include <mm/frame.h> |
| 58 | |||
| 1 | jermar | 59 | void kinit(void *arg) |
| 60 | { |
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| 61 | vm_t *m; |
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| 62 | vm_area_t *a; |
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| 63 | task_t *u; |
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| 64 | thread_t *t; |
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| 65 | int i; |
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| 66 | |||
| 413 | jermar | 67 | interrupts_disable(); |
| 1 | jermar | 68 | |
| 69 | #ifdef __SMP__ |
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| 70 | if (config.cpu_count > 1) { |
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| 71 | /* |
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| 72 | * Create the kmp thread and wait for its completion. |
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| 73 | * cpu1 through cpuN-1 will come up consecutively and |
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| 74 | * not mess together with kcpulb and klwtm threads. |
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| 75 | * Just a beautification. |
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| 76 | */ |
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| 15 | jermar | 77 | if (t = thread_create(kmp, NULL, TASK, 0)) { |
| 1 | jermar | 78 | spinlock_lock(&t->lock); |
| 79 | t->flags |= X_WIRED; |
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| 80 | t->cpu = &cpus[0]; |
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| 81 | spinlock_unlock(&t->lock); |
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| 82 | thread_ready(t); |
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| 83 | waitq_sleep(&kmp_completion_wq); |
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| 84 | } |
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| 85 | else panic("thread_create/kmp"); |
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| 86 | } |
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| 87 | #endif /* __SMP__ */ |
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| 88 | /* |
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| 89 | * Now that all CPUs are up, we can report what we've found. |
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| 90 | */ |
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| 32 | jermar | 91 | for (i = 0; i < config.cpu_count; i++) { |
| 28 | jermar | 92 | if (cpus[i].active) |
| 93 | cpu_print_report(&cpus[i]); |
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| 32 | jermar | 94 | else |
| 95 | printf("cpu%d: not active\n", i); |
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| 96 | } |
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| 1 | jermar | 97 | |
| 98 | #ifdef __SMP__ |
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| 99 | if (config.cpu_count > 1) { |
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| 125 | jermar | 100 | /* |
| 1 | jermar | 101 | * For each CPU, create its load balancing thread. |
| 102 | */ |
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| 103 | for (i = 0; i < config.cpu_count; i++) { |
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| 104 | |||
| 15 | jermar | 105 | if (t = thread_create(kcpulb, NULL, TASK, 0)) { |
| 1 | jermar | 106 | spinlock_lock(&t->lock); |
| 107 | t->flags |= X_WIRED; |
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| 108 | t->cpu = &cpus[i]; |
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| 109 | spinlock_unlock(&t->lock); |
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| 110 | thread_ready(t); |
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| 111 | } |
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| 112 | else panic("thread_create/kcpulb"); |
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| 113 | |||
| 114 | } |
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| 115 | } |
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| 116 | #endif /* __SMP__ */ |
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| 117 | |||
| 413 | jermar | 118 | interrupts_enable(); |
| 1 | jermar | 119 | |
| 34 | jermar | 120 | #ifdef __USERSPACE__ |
| 1 | jermar | 121 | /* |
| 122 | * Create the first user task. |
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| 123 | */ |
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| 167 | jermar | 124 | m = vm_create(NULL); |
| 68 | decky | 125 | if (!m) panic("vm_create"); |
| 1 | jermar | 126 | u = task_create(m); |
| 68 | decky | 127 | if (!u) panic("task_create"); |
| 1 | jermar | 128 | t = thread_create(uinit, NULL, u, THREAD_USER_STACK); |
| 68 | decky | 129 | if (!t) panic("thread_create"); |
| 1 | jermar | 130 | |
| 131 | /* |
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| 132 | * Create the text vm_area and copy the userspace code there. |
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| 133 | */ |
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| 134 | a = vm_area_create(m, VMA_TEXT, 1, UTEXT_ADDRESS); |
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| 68 | decky | 135 | if (!a) panic("vm_area_create: vm_text"); |
| 167 | jermar | 136 | vm_area_map(a, m); |
| 205 | jermar | 137 | memcpy((void *) PA2KA(a->mapping[0]), (void *) utext, utext_size < PAGE_SIZE ? utext_size : PAGE_SIZE); |
| 1 | jermar | 138 | |
| 139 | /* |
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| 140 | * Create the data vm_area. |
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| 141 | */ |
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| 142 | a = vm_area_create(m, VMA_STACK, 1, USTACK_ADDRESS); |
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| 68 | decky | 143 | if (!a) panic("vm_area_create: vm_stack"); |
| 167 | jermar | 144 | vm_area_map(a, m); |
| 1 | jermar | 145 | |
| 146 | thread_ready(t); |
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| 34 | jermar | 147 | #endif /* __USERSPACE__ */ |
| 1 | jermar | 148 | |
| 149 | #ifdef __TEST__ |
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| 150 | test(); |
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| 151 | #endif /* __TEST__ */ |
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| 152 | |||
| 153 | |||
| 154 | while (1) { |
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| 155 | thread_usleep(1000000); |
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| 156 | printf("kinit... "); |
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| 157 | } |
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| 158 | |||
| 159 | } |