Subversion Repositories HelenOS

Rev

Rev 2227 | Rev 2745 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 2227 Rev 2465
Line 1... Line 1...
1 
/*
 1 
/*
2 
 * Copyright (c) 2003-2004 Jakub Jermar
 2 
 * Copyright (c) 2007 Michal Kebrt
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:
Line 28... Line 28...
28 
 
 28 
 
29 
/** @addtogroup arm32
 29 
/** @addtogroup arm32
30 
 * @{
 30 
 * @{
31 
 */
 31 
 */
32 
/** @file
 32 
/** @file
- 
 
 33 
 *  @brief ARM32 architecture specific functions.
33 
 */
 34 
 */
34 
 
 35 
 
35 
 
 - 
 
36 
#include <arch.h>
 36 
#include <arch.h>
- 
 
 37 
#include <arch/boot.h>
- 
 
 38 
#include <config.h>
- 
 
 39 
#include <arch/console.h>
- 
 
 40 
#include <ddi/device.h>
- 
 
 41 
#include <genarch/fb/fb.h>
- 
 
 42 
#include <genarch/fb/visuals.h>
- 
 
 43 
#include <ddi/irq.h>
- 
 
 44 
#include <arch/debug/print.h>
- 
 
 45 
#include <print.h>
- 
 
 46 
#include <config.h>
- 
 
 47 
#include <interrupt.h>
- 
 
 48 
#include <arch/regutils.h>
- 
 
 49 
#include <arch/machine.h>
- 
 
 50 
#include <userspace.h>
- 
 
 51 
 
- 
 
 52 
/** Information about loaded tasks. */
- 
 
 53 
bootinfo_t bootinfo;
37 
 
 54 
 
- 
 
 55 
/** Performs arm32 specific initialization before main_bsp() is called. */
38 
void arch_pre_main(void)
 56 
void arch_pre_main(void)
39 
{
 57 
{
40 
    /* TODO */
 58 
    int i;
- 
 
 59 
 
- 
 
 60 
    init.cnt = bootinfo.cnt;
- 
 
 61 
 
- 
 
 62 
    for (i = 0; i < bootinfo.cnt; ++i) {
- 
 
 63 
        init.tasks[i].addr = bootinfo.tasks[i].addr;
- 
 
 64 
        init.tasks[i].size = bootinfo.tasks[i].size;
- 
 
 65 
    }
- 
 
 66 
   
41 
}
 67 
}
42 
 
 68 
 
- 
 
 69 
/** Performs arm32 specific initialization before mm is initialized. */
43 
void arch_pre_mm_init(void)
 70 
void arch_pre_mm_init(void)
44 
{
 71 
{
45 
    /* TODO */
 72 
    /* It is not assumed by default */
- 
 
 73 
    interrupts_disable();
46 
}
 74 
}
47 
 
 75 
 
- 
 
 76 
/** Performs arm32 specific initialization afterr mm is initialized. */
48 
void arch_post_mm_init(void)
 77 
void arch_post_mm_init(void)
49 
{
 78 
{
- 
 
 79 
    machine_hw_map_init();
- 
 
 80 
 
- 
 
 81 
    /* Initialize exception dispatch table */
- 
 
 82 
    exception_init();
- 
 
 83 
 
- 
 
 84 
    interrupt_init();
- 
 
 85 
   
- 
 
 86 
    console_init(device_assign_devno());
- 
 
 87 
 
50 
    /* TODO */
 88 
#ifdef CONFIG_FB
- 
 
 89 
    fb_init(machine_get_fb_address(), 640, 480, 1920, VISUAL_RGB_8_8_8);
- 
 
 90 
#endif
51 
}
 91 
}
52 
 
 92 
 
- 
 
 93 
/** Performs arm32 specific tasks needed after cpu is initialized.
- 
 
 94 
 *
- 
 
 95 
 * Currently the function is empty.
- 
 
 96 
 */
53 
void arch_post_cpu_init(void)
 97 
void arch_post_cpu_init(void)
54 
{
 98 
{
55 
    /* TODO */
 - 
 
56 
}
 99 
}
57 
 
 100 
 
- 
 
 101 
 
- 
 
 102 
/** Performs arm32 specific tasks needed before the multiprocessing is
- 
 
 103 
 * initialized.
- 
 
 104 
 *
- 
 
 105 
 * Currently the function is empty because SMP is not supported.
- 
 
 106 
 */
58 
void arch_pre_smp_init(void)
 107 
void arch_pre_smp_init(void)
59 
{
 108 
{
60 
    /* TODO */
 - 
 
61 
}
 109 
}
62 
 
 110 
 
- 
 
 111 
 
- 
 
 112 
/** Performs arm32 specific tasks needed after the multiprocessing is
- 
 
 113 
 * initialized.
- 
 
 114 
 *
- 
 
 115 
 * Currently the function is empty because SMP is not supported.
- 
 
 116 
 */
63 
void arch_post_smp_init(void)
 117 
void arch_post_smp_init(void)
64 
{
 118 
{
65 
    /* TODO */
 - 
 
66 
}
 119 
}
67 
 
 120 
 
- 
 
 121 
 
68 
/** Perform arm32 specific tasks needed before the new task is run. */
 122 
/** Performs arm32 specific tasks needed before the new task is run. */
69 
void before_task_runs_arch(void)
 123 
void before_task_runs_arch(void)
70 
{
 124 
{
71 
    /* TODO */
 125 
    tlb_invalidate_all();
72 
}
 126 
}
73 
 
 127 
 
- 
 
 128 
 
74 
/** Perform arm32 specific tasks needed before the new thread is scheduled. */
 129 
/** Performs arm32 specific tasks needed before the new thread is scheduled.
- 
 
 130 
 *
- 
 
 131 
 * It sets supervisor_sp.
- 
 
 132 
 */
75 
void before_thread_runs_arch(void)
 133 
void before_thread_runs_arch(void)
76 
{
 134 
{
77 
    /* TODO */
 135 
    uint8_t *stck;
- 
 
 136 
   
- 
 
 137 
    stck = &THREAD->kstack[THREAD_STACK_SIZE - SP_DELTA];
- 
 
 138 
    supervisor_sp = (uintptr_t) stck;
78 
}
 139 
}
79 
 
 140 
 
- 
 
 141 
/** Performs arm32 specific tasks before a thread stops running.
- 
 
 142 
 *
- 
 
 143 
 * Currently the function is empty.
- 
 
 144 
 */
80 
void after_thread_ran_arch(void)
 145 
void after_thread_ran_arch(void)
81 
{
 146 
{
82 
    /* TODO */
 - 
 
83 
}
 147 
}
84 
 
 148 
 
- 
 
 149 
/** Halts CPU. */
- 
 
 150 
void cpu_halt(void)
- 
 
 151 
{
- 
 
 152 
    machine_cpu_halt();
- 
 
 153 
}
- 
 
 154 
 
- 
 
 155 
/** Reboot. */
85 
void arch_reboot(void)
 156 
void arch_reboot()
86 
{
 157 
{
- 
 
 158 
    /* not implemented */
87 
    // TODO
 159 
    for (;;)
88 
    while (1);
 160 
        ;
89 
}
 161 
}
90 
 
 162 
 
91 
/** @}
 163 
/** @}
92 
 */
 164 
 */