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1810 | decky | 1 | /* |
2 | * Copyright (C) 2001-2004 Jakub Jermar |
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3 | * All rights reserved. |
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4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * |
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9 | * - Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * - Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * - The name of the author may not be used to endorse or promote products |
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15 | * derived from this software without specific prior written permission. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |||
29 | /** @addtogroup xen32 |
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30 | * @{ |
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31 | */ |
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32 | /** @file |
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33 | */ |
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34 | |||
35 | #include <arch.h> |
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36 | |||
37 | #include <arch/types.h> |
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38 | #include <typedefs.h> |
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39 | |||
40 | #include <arch/pm.h> |
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41 | |||
42 | #include <arch/drivers/ega.h> |
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43 | #include <arch/drivers/vesa.h> |
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44 | #include <genarch/i8042/i8042.h> |
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45 | #include <arch/drivers/i8254.h> |
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46 | #include <arch/drivers/i8259.h> |
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47 | |||
48 | #include <arch/context.h> |
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49 | |||
50 | #include <config.h> |
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51 | |||
52 | #include <arch/interrupt.h> |
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53 | #include <arch/asm.h> |
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54 | #include <genarch/acpi/acpi.h> |
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55 | |||
56 | #include <arch/bios/bios.h> |
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57 | |||
58 | #include <arch/mm/memory_init.h> |
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59 | #include <interrupt.h> |
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60 | #include <arch/debugger.h> |
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61 | #include <proc/thread.h> |
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62 | #include <syscall/syscall.h> |
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63 | #include <console/console.h> |
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64 | |||
65 | void arch_pre_mm_init(void) |
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66 | { |
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67 | // pm_init(); |
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68 | |||
69 | if (config.cpu_active == 1) { |
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70 | // bios_init(); |
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71 | // i8259_init(); /* PIC */ |
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72 | // i8254_init(); /* hard clock */ |
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73 | |||
74 | // exc_register(VECTOR_SYSCALL, "syscall", (iroutine) syscall); |
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75 | |||
76 | #ifdef CONFIG_SMP |
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77 | // exc_register(VECTOR_TLB_SHOOTDOWN_IPI, "tlb_shootdown", |
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78 | // (iroutine) tlb_shootdown_ipi); |
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79 | #endif /* CONFIG_SMP */ |
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80 | } |
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81 | } |
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82 | |||
83 | void arch_post_mm_init(void) |
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84 | { |
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85 | if (config.cpu_active == 1) { |
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86 | |||
87 | #ifdef CONFIG_FB |
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88 | if (vesa_present()) |
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89 | vesa_init(); |
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90 | else |
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91 | #endif |
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92 | ega_init(); /* video */ |
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93 | |||
94 | |||
95 | /* Enable debugger */ |
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96 | debugger_init(); |
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97 | /* Merge all memory zones to 1 big zone */ |
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98 | zone_merge_all(); |
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99 | } |
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100 | } |
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101 | |||
102 | void arch_pre_smp_init(void) |
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103 | { |
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104 | if (config.cpu_active == 1) { |
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105 | memory_print_map(); |
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106 | |||
107 | #ifdef CONFIG_SMP |
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108 | acpi_init(); |
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109 | #endif /* CONFIG_SMP */ |
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110 | } |
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111 | } |
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112 | |||
113 | void arch_post_smp_init(void) |
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114 | { |
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115 | i8042_init(); /* keyboard controller */ |
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116 | } |
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117 | |||
118 | void calibrate_delay_loop(void) |
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119 | { |
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120 | i8254_calibrate_delay_loop(); |
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121 | if (config.cpu_active == 1) { |
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122 | /* |
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123 | * This has to be done only on UP. |
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124 | * On SMP, i8254 is not used for time keeping and its interrupt pin remains masked. |
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125 | */ |
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126 | i8254_normal_operation(); |
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127 | } |
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128 | } |
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129 | |||
130 | /** Set thread-local-storage pointer |
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131 | * |
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132 | * TLS pointer is set in GS register. That means, the GS contains |
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133 | * selector, and the descriptor->base is the correct address. |
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134 | */ |
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135 | unative_t sys_tls_set(unative_t addr) |
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136 | { |
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137 | THREAD->arch.tls = addr; |
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138 | set_tls_desc(addr); |
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139 | |||
140 | return 0; |
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141 | } |
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142 | |||
143 | /** Acquire console back for kernel |
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144 | * |
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145 | */ |
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146 | void arch_grab_console(void) |
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147 | { |
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148 | i8042_grab(); |
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149 | } |
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150 | /** Return console to userspace |
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151 | * |
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152 | */ |
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153 | void arch_release_console(void) |
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154 | { |
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155 | i8042_release(); |
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156 | } |
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157 | |||
158 | /** @} |
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159 | */ |