Subversion Repositories HelenOS

Rev

Rev 108 | Rev 192 | 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 <cpu.h>
15 jermar 30
#include <arch.h>
1 jermar 31
#include <arch/cpu.h>
32
#include <mm/heap.h>
33
#include <mm/page.h>
34
#include <mm/frame.h>
35
#include <arch/types.h>
36
#include <config.h>
37
#include <panic.h>
38
#include <typedefs.h>
39
#include <memstr.h>
40
#include <list.h>
41
 
24 jermar 42
 
16 jermar 43
cpu_private_data_t *cpu_private_data;
1 jermar 44
cpu_t *cpus;
45
 
108 decky 46
 
47
/** Initialize CPUs
48
 *
49
 * Initialize kernel CPUs support.
50
 *
51
 */
1 jermar 52
void cpu_init(void) {
53
    int i, j;
54
 
55
    #ifdef __SMP__
56
    if (config.cpu_active == 1) {
57
    #endif /* __SMP__ */
16 jermar 58
        cpu_private_data = (cpu_private_data_t *) malloc(sizeof(cpu_private_data_t) * config.cpu_count);
59
        if (!cpu_private_data)
60
            panic("malloc/cpu_private_data");
61
 
1 jermar 62
        cpus = (cpu_t *) malloc(sizeof(cpu_t) * config.cpu_count);
63
        if (!cpus)
64
            panic("malloc/cpus");
65
 
66
        /* initialize everything */
16 jermar 67
        memsetb((__address) cpu_private_data, sizeof(cpu_private_data_t) * config.cpu_count, 0);
1 jermar 68
        memsetb((__address) cpus, sizeof(cpu_t) * config.cpu_count, 0);
125 jermar 69
 
1 jermar 70
        for (i=0; i < config.cpu_count; i++) {
71
            cpus[i].stack = (__u8 *) malloc(CPU_STACK_SIZE);
72
            if (!cpus[i].stack)
73
                panic("malloc/cpus[%d].stack\n", i);
74
 
75
            cpus[i].id = i;
76
 
77
            #ifdef __SMP__
78
            waitq_initialize(&cpus[i].kcpulb_wq);
79
            #endif /* __SMP */
80
 
81
            for (j = 0; j < RQ_COUNT; j++) {
82
                list_initialize(&cpus[i].rq[j].rq_head);
83
            }
84
        }
85
 
86
    #ifdef __SMP__
87
    }
88
    #endif /* __SMP__ */
89
 
28 jermar 90
    CPU->active = 1;
31 jermar 91
    CPU->tlb_active = 1;
28 jermar 92
 
1 jermar 93
    cpu_identify();
94
    cpu_arch_init();
95
}