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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 | */ |