Rev 15 | Rev 32 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1 | jermar | 1 | /* |
| 2 | * Copyright (C) 2001-2004 Jakub 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 | |||
| 29 | #include <config.h> |
||
| 30 | #include <arch.h> |
||
| 31 | #include <main/kinit.h> |
||
| 32 | #include <main/uinit.h> |
||
| 33 | #include <proc/scheduler.h> |
||
| 34 | #include <proc/task.h> |
||
| 35 | #include <proc/thread.h> |
||
| 36 | #include <panic.h> |
||
| 37 | #include <func.h> |
||
| 38 | #include <cpu.h> |
||
| 39 | #include <arch/asm.h> |
||
| 40 | #include <mm/page.h> |
||
| 41 | #include <arch/mm/page.h> |
||
| 42 | #include <mm/vm.h> |
||
| 43 | |||
| 44 | #ifdef __SMP__ |
||
| 11 | jermar | 45 | #include <arch/smp/mp.h> |
| 1 | jermar | 46 | #endif /* __SMP__ */ |
| 47 | |||
| 48 | #include <synch/waitq.h> |
||
| 49 | #include <synch/spinlock.h> |
||
| 50 | |||
| 51 | #ifdef __TEST__ |
||
| 52 | #include <test.h> |
||
| 53 | #endif /* __TEST__ */ |
||
| 54 | |||
| 55 | void kinit(void *arg) |
||
| 56 | { |
||
| 57 | vm_t *m; |
||
| 58 | vm_area_t *a; |
||
| 59 | task_t *u; |
||
| 60 | thread_t *t; |
||
| 61 | int i; |
||
| 62 | |||
| 63 | cpu_priority_high(); |
||
| 64 | |||
| 65 | #ifdef __SMP__ |
||
| 66 | if (config.cpu_count > 1) { |
||
| 67 | /* |
||
| 68 | * Create the kmp thread and wait for its completion. |
||
| 69 | * cpu1 through cpuN-1 will come up consecutively and |
||
| 70 | * not mess together with kcpulb and klwtm threads. |
||
| 71 | * Just a beautification. |
||
| 72 | */ |
||
| 15 | jermar | 73 | if (t = thread_create(kmp, NULL, TASK, 0)) { |
| 1 | jermar | 74 | spinlock_lock(&t->lock); |
| 75 | t->flags |= X_WIRED; |
||
| 76 | t->cpu = &cpus[0]; |
||
| 77 | spinlock_unlock(&t->lock); |
||
| 78 | thread_ready(t); |
||
| 79 | waitq_sleep(&kmp_completion_wq); |
||
| 80 | cpu_priority_high(); |
||
| 81 | } |
||
| 82 | else panic("thread_create/kmp"); |
||
| 83 | } |
||
| 84 | #endif /* __SMP__ */ |
||
| 85 | /* |
||
| 86 | * Now that all CPUs are up, we can report what we've found. |
||
| 87 | */ |
||
| 88 | for (i = 0; i < config.cpu_count; i++) |
||
| 28 | jermar | 89 | if (cpus[i].active) |
| 90 | cpu_print_report(&cpus[i]); |
||
| 1 | jermar | 91 | |
| 92 | #ifdef __SMP__ |
||
| 93 | if (config.cpu_count > 1) { |
||
| 94 | /* |
||
| 95 | * For each CPU, create its load balancing thread. |
||
| 96 | */ |
||
| 97 | for (i = 0; i < config.cpu_count; i++) { |
||
| 98 | |||
| 15 | jermar | 99 | if (t = thread_create(kcpulb, NULL, TASK, 0)) { |
| 1 | jermar | 100 | spinlock_lock(&t->lock); |
| 101 | t->flags |= X_WIRED; |
||
| 102 | t->cpu = &cpus[i]; |
||
| 103 | spinlock_unlock(&t->lock); |
||
| 104 | thread_ready(t); |
||
| 105 | } |
||
| 106 | else panic("thread_create/kcpulb"); |
||
| 107 | |||
| 108 | } |
||
| 109 | } |
||
| 110 | #endif /* __SMP__ */ |
||
| 111 | |||
| 112 | cpu_priority_low(); |
||
| 113 | |||
| 114 | /* |
||
| 115 | * Create the first user task. |
||
| 116 | */ |
||
| 117 | m = vm_create(); |
||
| 118 | if (!m) panic(PANIC "vm_create"); |
||
| 119 | u = task_create(m); |
||
| 120 | if (!u) panic(PANIC "task_create"); |
||
| 121 | t = thread_create(uinit, NULL, u, THREAD_USER_STACK); |
||
| 122 | if (!t) panic(PANIC "thread_create"); |
||
| 123 | |||
| 124 | /* |
||
| 125 | * Create the text vm_area and copy the userspace code there. |
||
| 126 | */ |
||
| 127 | a = vm_area_create(m, VMA_TEXT, 1, UTEXT_ADDRESS); |
||
| 128 | if (!a) panic(PANIC "vm_area_create: vm_text"); |
||
| 129 | memcopy((__address) utext, PA2KA(a->mapping[0]), utext_size < PAGE_SIZE ? utext_size : PAGE_SIZE); |
||
| 130 | |||
| 131 | /* |
||
| 132 | * Create the data vm_area. |
||
| 133 | */ |
||
| 134 | a = vm_area_create(m, VMA_STACK, 1, USTACK_ADDRESS); |
||
| 135 | if (!a) panic(PANIC "vm_area_create: vm_stack"); |
||
| 136 | |||
| 137 | thread_ready(t); |
||
| 138 | |||
| 139 | #ifdef __TEST__ |
||
| 140 | test(); |
||
| 141 | #endif /* __TEST__ */ |
||
| 142 | |||
| 143 | |||
| 144 | while (1) { |
||
| 145 | thread_usleep(1000000); |
||
| 146 | printf("kinit... "); |
||
| 147 | } |
||
| 148 | |||
| 149 | } |