| 0,0 → 1,89 |
|---|
| /* |
| * 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 <cpu.h> |
| #include <arch.h> |
| #include <arch/cpu.h> |
| #include <mm/heap.h> |
| #include <mm/page.h> |
| #include <mm/frame.h> |
| #include <arch/types.h> |
| #include <config.h> |
| #include <panic.h> |
| #include <typedefs.h> |
| #include <memstr.h> |
| #include <list.h> |
| |
| cpu_t *cpus; |
| |
| /** Initialize CPUs |
| * |
| * Initialize kernel CPUs support. |
| * |
| */ |
| void cpu_init(void) { |
| int i, j; |
| |
| #ifdef CONFIG_SMP |
| if (config.cpu_active == 1) { |
| #endif /* CONFIG_SMP */ |
| cpus = (cpu_t *) malloc(sizeof(cpu_t) * config.cpu_count); |
| if (!cpus) |
| panic("malloc/cpus"); |
| |
| /* initialize everything */ |
| memsetb((__address) cpus, sizeof(cpu_t) * config.cpu_count, 0); |
| |
| for (i=0; i < config.cpu_count; i++) { |
| cpus[i].stack = (__u8 *) frame_alloc(FRAME_KA | FRAME_PANIC,0); |
| if (!cpus[i].stack) |
| panic("malloc/cpus[%d].stack\n", i); |
| |
| cpus[i].id = i; |
| |
| #ifdef CONFIG_SMP |
| waitq_initialize(&cpus[i].kcpulb_wq); |
| #endif /* __SMP */ |
| |
| for (j = 0; j < RQ_COUNT; j++) { |
| list_initialize(&cpus[i].rq[j].rq_head); |
| } |
| } |
| |
| #ifdef CONFIG_SMP |
| } |
| #endif /* CONFIG_SMP */ |
| |
| CPU = &cpus[config.cpu_active-1]; |
| |
| CPU->active = 1; |
| CPU->tlb_active = 1; |
| |
| cpu_identify(); |
| cpu_arch_init(); |
| } |