Subversion Repositories HelenOS

Rev

Rev 2071 | Rev 2089 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
1 jermar 1
/*
2071 jermar 2
 * Copyright (c) 2001-2004 Jakub Jermar
1 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
 
1731 jermar 29
/** @addtogroup generic
1702 cejka 30
 * @{
31
 */
32
/** @file
33
 */
34
 
1881 jermar 35
#ifndef KERN_CPU_H_
36
#define KERN_CPU_H_
1 jermar 37
 
38
#include <arch/cpu.h>
39
#include <proc/scheduler.h>
40
#include <synch/spinlock.h>
41
#include <synch/waitq.h>
42
#include <arch/types.h>
43
#include <typedefs.h>
44
#include <arch/context.h>
173 jermar 45
#include <config.h>
788 jermar 46
#include <adt/list.h>
1002 jermar 47
#include <mm/tlb.h>
1 jermar 48
 
173 jermar 49
#define CPU_STACK_SIZE  STACK_SIZE
1 jermar 50
 
681 jermar 51
/** CPU structure.
52
 *
53
 * There is one structure like this for every processor.
54
 */
2079 decky 55
typedef struct {
623 jermar 56
    SPINLOCK_DECLARE(lock);
681 jermar 57
 
1002 jermar 58
    tlb_shootdown_msg_t tlb_messages[TLB_MESSAGE_QUEUE_LEN];
59
    count_t tlb_messages_count;
60
 
1 jermar 61
    context_t saved_context;
62
 
783 palkovsky 63
    atomic_t nrdy;
1 jermar 64
    runq_t rq[RQ_COUNT];
483 jermar 65
    volatile count_t needs_relink;
1 jermar 66
 
623 jermar 67
    SPINLOCK_DECLARE(timeoutlock);
1 jermar 68
    link_t timeout_active_head;
69
 
1431 jermar 70
    count_t missed_clock_ticks; /**< When system clock loses a tick, it is recorded here
71
                         so that clock() can react. This variable is
72
                         CPU-local and can be only accessed when interrupts
73
                         are disabled. */
74
 
681 jermar 75
    /**
76
     * Processor ID assigned by kernel.
77
     */
1 jermar 78
    int id;
681 jermar 79
 
28 jermar 80
    int active;
31 jermar 81
    int tlb_active;
1 jermar 82
 
1780 jermar 83
    uint16_t frequency_mhz;
84
    uint32_t delay_loop_const;
1 jermar 85
 
86
    cpu_arch_t arch;
75 vana 87
 
88
    thread_t *fpu_owner;
1 jermar 89
 
681 jermar 90
    /**
91
     * Stack used by scheduler when there is no running thread.
92
     */
1780 jermar 93
    uint8_t *stack;
2079 decky 94
} cpu_t;
1 jermar 95
 
96
extern cpu_t *cpus;
97
 
98
extern void cpu_init(void);
673 jermar 99
extern void cpu_list(void);
195 vana 100
 
1 jermar 101
extern void cpu_arch_init(void);
102
extern void cpu_identify(void);
103
extern void cpu_print_report(cpu_t *m);
104
 
105
#endif
1702 cejka 106
 
1731 jermar 107
/** @}
1702 cejka 108
 */