Subversion Repositories HelenOS

Rev

Rev 2089 | Go to most recent revision | Only display areas with differences | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 2089 Rev 2092
1 
/*
 1 
/*
2 
 * Copyright (c) 2001-2004 Jakub Jermar
 2 
 * Copyright (c) 2001-2004 Jakub Jermar
3 
 * All rights reserved.
 3 
 * All rights reserved.
4 
 *
 4 
 *
5 
 * Redistribution and use in source and binary forms, with or without
 5 
 * Redistribution and use in source and binary forms, with or without
6 
 * modification, are permitted provided that the following conditions
 6 
 * modification, are permitted provided that the following conditions
7 
 * are met:
 7 
 * are met:
8 
 *
 8 
 *
9 
 * - Redistributions of source code must retain the above copyright
 9 
 * - Redistributions of source code must retain the above copyright
10 
 *   notice, this list of conditions and the following disclaimer.
 10 
 *   notice, this list of conditions and the following disclaimer.
11 
 * - Redistributions in binary form must reproduce the above copyright
 11 
 * - Redistributions in binary form must reproduce the above copyright
12 
 *   notice, this list of conditions and the following disclaimer in the
 12 
 *   notice, this list of conditions and the following disclaimer in the
13 
 *   documentation and/or other materials provided with the distribution.
 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
 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.
 15 
 *   derived from this software without specific prior written permission.
16 
 *
 16 
 *
17 
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 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
 18 
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 19 
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 20 
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 21 
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 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
 23 
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 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
 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.
 26 
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 
 */
 27 
 */
28 
 
 28 
 
29 
/** @addtogroup generic
 29 
/** @addtogroup generic
30 
 * @{
 30 
 * @{
31 
 */
 31 
 */
32 
/** @file
 32 
/** @file
33 
 */
 33 
 */
34 
 
 34 
 
35 
#ifndef KERN_CPU_H_
 35 
#ifndef KERN_CPU_H_
36 
#define KERN_CPU_H_
 36 
#define KERN_CPU_H_
37 
 
 37 
 
- 
 
 38 
#include <mm/tlb.h>
- 
 
 39 
#include <synch/spinlock.h>
38 
#include <proc/thread.h>
 40 
#include <proc/scheduler.h>
- 
 
 41 
#include <arch/cpu.h>
- 
 
 42 
#include <arch/context.h>
39 
 
 43 
 
40 
#define CPU_STACK_SIZE  STACK_SIZE
 44 
#define CPU_STACK_SIZE  STACK_SIZE
41 
 
 45 
 
- 
 
 46 
/** CPU structure.
- 
 
 47 
 *
- 
 
 48 
 * There is one structure like this for every processor.
- 
 
 49 
 */
- 
 
 50 
typedef struct {
- 
 
 51 
    SPINLOCK_DECLARE(lock);
- 
 
 52 
 
- 
 
 53 
    tlb_shootdown_msg_t tlb_messages[TLB_MESSAGE_QUEUE_LEN];
- 
 
 54 
    count_t tlb_messages_count;
- 
 
 55 
   
- 
 
 56 
    context_t saved_context;
- 
 
 57 
 
- 
 
 58 
    atomic_t nrdy;
- 
 
 59 
    runq_t rq[RQ_COUNT];
- 
 
 60 
    volatile count_t needs_relink;
- 
 
 61 
 
- 
 
 62 
    SPINLOCK_DECLARE(timeoutlock);
- 
 
 63 
    link_t timeout_active_head;
- 
 
 64 
 
- 
 
 65 
    count_t missed_clock_ticks; /**< When system clock loses a tick, it is recorded here
- 
 
 66 
                         so that clock() can react. This variable is
- 
 
 67 
                         CPU-local and can be only accessed when interrupts
- 
 
 68 
                         are disabled. */
- 
 
 69 
 
- 
 
 70 
    /**
- 
 
 71 
     * Processor ID assigned by kernel.
- 
 
 72 
     */
- 
 
 73 
    unsigned int id;
- 
 
 74 
   
- 
 
 75 
    int active;
- 
 
 76 
    int tlb_active;
- 
 
 77 
 
- 
 
 78 
    uint16_t frequency_mhz;
- 
 
 79 
    uint32_t delay_loop_const;
- 
 
 80 
 
- 
 
 81 
    cpu_arch_t arch;
- 
 
 82 
 
- 
 
 83 
    struct thread *fpu_owner;
- 
 
 84 
   
- 
 
 85 
    /**
- 
 
 86 
     * Stack used by scheduler when there is no running thread.
- 
 
 87 
     */
- 
 
 88 
    uint8_t *stack;
- 
 
 89 
} cpu_t;
- 
 
 90 
 
42 
extern cpu_t *cpus;
 91 
extern cpu_t *cpus;
43 
 
 92 
 
44 
extern void cpu_init(void);
 93 
extern void cpu_init(void);
45 
extern void cpu_list(void);
 94 
extern void cpu_list(void);
46 
 
 95 
 
47 
extern void cpu_arch_init(void);
 96 
extern void cpu_arch_init(void);
48 
extern void cpu_identify(void);
 97 
extern void cpu_identify(void);
49 
extern void cpu_print_report(cpu_t *m);
 98 
extern void cpu_print_report(cpu_t *m);
50 
 
 99 
 
51 
#endif
 100 
#endif
52 
 
 101 
 
53 
/** @}
 102 
/** @}
54 
 */
 103 
 */
55 
 
 104