| 0,0 → 1,148 |
|---|
| /* |
| * Copyright (C) 2001-2004 Jakub Jermar |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include <config.h> |
| #include <arch.h> |
| #include <main/kinit.h> |
| #include <main/uinit.h> |
| #include <proc/scheduler.h> |
| #include <proc/task.h> |
| #include <proc/thread.h> |
| #include <panic.h> |
| #include <func.h> |
| #include <cpu.h> |
| #include <arch/asm.h> |
| #include <mm/page.h> |
| #include <arch/mm/page.h> |
| #include <mm/vm.h> |
| |
| #ifdef __SMP__ |
| #include <arch/mp.h> |
| #endif /* __SMP__ */ |
| |
| #include <synch/waitq.h> |
| #include <synch/spinlock.h> |
| |
| #ifdef __TEST__ |
| #include <test.h> |
| #endif /* __TEST__ */ |
| |
| void kinit(void *arg) |
| { |
| vm_t *m; |
| vm_area_t *a; |
| task_t *u; |
| thread_t *t; |
| int i; |
| |
| cpu_priority_high(); |
| |
| #ifdef __SMP__ |
| if (config.cpu_count > 1) { |
| /* |
| * Create the kmp thread and wait for its completion. |
| * cpu1 through cpuN-1 will come up consecutively and |
| * not mess together with kcpulb and klwtm threads. |
| * Just a beautification. |
| */ |
| if (t = thread_create(kmp, NULL, the->task, 0)) { |
| spinlock_lock(&t->lock); |
| t->flags |= X_WIRED; |
| t->cpu = &cpus[0]; |
| spinlock_unlock(&t->lock); |
| thread_ready(t); |
| waitq_sleep(&kmp_completion_wq); |
| cpu_priority_high(); |
| } |
| else panic("thread_create/kmp"); |
| } |
| #endif /* __SMP__ */ |
| /* |
| * Now that all CPUs are up, we can report what we've found. |
| */ |
| for (i = 0; i < config.cpu_count; i++) |
| cpu_print_report(&cpus[i]); |
| |
| #ifdef __SMP__ |
| if (config.cpu_count > 1) { |
| /* |
| * For each CPU, create its load balancing thread. |
| */ |
| for (i = 0; i < config.cpu_count; i++) { |
| |
| if (t = thread_create(kcpulb, NULL, the->task, 0)) { |
| spinlock_lock(&t->lock); |
| t->flags |= X_WIRED; |
| t->cpu = &cpus[i]; |
| spinlock_unlock(&t->lock); |
| thread_ready(t); |
| } |
| else panic("thread_create/kcpulb"); |
| |
| } |
| } |
| #endif /* __SMP__ */ |
| |
| cpu_priority_low(); |
| |
| /* |
| * Create the first user task. |
| */ |
| m = vm_create(); |
| if (!m) panic(PANIC "vm_create"); |
| u = task_create(m); |
| if (!u) panic(PANIC "task_create"); |
| t = thread_create(uinit, NULL, u, THREAD_USER_STACK); |
| if (!t) panic(PANIC "thread_create"); |
| |
| /* |
| * Create the text vm_area and copy the userspace code there. |
| */ |
| a = vm_area_create(m, VMA_TEXT, 1, UTEXT_ADDRESS); |
| if (!a) panic(PANIC "vm_area_create: vm_text"); |
| memcopy((__address) utext, PA2KA(a->mapping[0]), utext_size < PAGE_SIZE ? utext_size : PAGE_SIZE); |
| |
| /* |
| * Create the data vm_area. |
| */ |
| a = vm_area_create(m, VMA_STACK, 1, USTACK_ADDRESS); |
| if (!a) panic(PANIC "vm_area_create: vm_stack"); |
| |
| thread_ready(t); |
| |
| #ifdef __TEST__ |
| test(); |
| #endif /* __TEST__ */ |
| |
| |
| while (1) { |
| thread_usleep(1000000); |
| printf("kinit... "); |
| } |
| |
| } |