source: mainline/arch/ia32/src/ia32.c@ b45c443

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since b45c443 was b45c443, checked in by Josef Cejka <malyzelenyhnus@…>, 19 years ago

Kernel doxygen comments updated.

  • Property mode set to 100644
File size: 3.6 KB
Line 
1/*
2 * Copyright (C) 2001-2004 Jakub 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
29 /** @addtogroup ia32
30 * @ingroup others
31 * @{
32 */
33/** @file
34 */
35
36#include <arch.h>
37
38#include <arch/types.h>
39#include <typedefs.h>
40
41#include <arch/pm.h>
42
43#include <arch/drivers/ega.h>
44#include <arch/drivers/vesa.h>
45#include <genarch/i8042/i8042.h>
46#include <arch/drivers/i8254.h>
47#include <arch/drivers/i8259.h>
48
49#include <arch/context.h>
50
51#include <config.h>
52
53#include <arch/interrupt.h>
54#include <arch/asm.h>
55#include <genarch/acpi/acpi.h>
56
57#include <arch/bios/bios.h>
58
59#include <arch/mm/memory_init.h>
60#include <interrupt.h>
61#include <arch/debugger.h>
62#include <proc/thread.h>
63#include <syscall/syscall.h>
64#include <console/console.h>
65
66void arch_pre_mm_init(void)
67{
68 pm_init();
69
70 if (config.cpu_active == 1) {
71 bios_init();
72 i8259_init(); /* PIC */
73 i8254_init(); /* hard clock */
74
75 exc_register(VECTOR_SYSCALL, "syscall", (iroutine) syscall);
76
77 #ifdef CONFIG_SMP
78 exc_register(VECTOR_TLB_SHOOTDOWN_IPI, "tlb_shootdown",
79 (iroutine) tlb_shootdown_ipi);
80 #endif /* CONFIG_SMP */
81 }
82}
83
84void arch_post_mm_init(void)
85{
86 if (config.cpu_active == 1) {
87
88#ifdef CONFIG_FB
89 if (vesa_present())
90 vesa_init();
91 else
92#endif
93 ega_init(); /* video */
94
95
96 /* Enable debugger */
97 debugger_init();
98 /* Merge all memory zones to 1 big zone */
99 zone_merge_all();
100 }
101}
102
103void arch_pre_smp_init(void)
104{
105 if (config.cpu_active == 1) {
106 memory_print_map();
107
108 #ifdef CONFIG_SMP
109 acpi_init();
110 #endif /* CONFIG_SMP */
111 }
112}
113
114void arch_post_smp_init(void)
115{
116 i8042_init(); /* keyboard controller */
117}
118
119void calibrate_delay_loop(void)
120{
121 i8254_calibrate_delay_loop();
122 if (config.cpu_active == 1) {
123 /*
124 * This has to be done only on UP.
125 * On SMP, i8254 is not used for time keeping and its interrupt pin remains masked.
126 */
127 i8254_normal_operation();
128 }
129}
130
131/** Set thread-local-storage pointer
132 *
133 * TLS pointer is set in GS register. That means, the GS contains
134 * selector, and the descriptor->base is the correct address.
135 */
136__native sys_tls_set(__native addr)
137{
138 THREAD->arch.tls = addr;
139 set_tls_desc(addr);
140
141 return 0;
142}
143
144/** Acquire console back for kernel
145 *
146 */
147void arch_grab_console(void)
148{
149 i8042_grab();
150}
151/** Return console to userspace
152 *
153 */
154void arch_release_console(void)
155{
156 i8042_release();
157}
158
159 /** @}
160 */
161
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