Annotation of prex-old/sys/arch/i386/pc/machdep.c, Revision 1.1.1.1.2.1
1.1 nbrk 1: /*-
2: * Copyright (c) 2005-2007, Kohsuke Ohtani
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: * 1. Redistributions of source code must retain the above copyright
9: * notice, this list of conditions and the following disclaimer.
10: * 2. Redistributions in binary form must reproduce the above copyright
11: * notice, this list of conditions and the following disclaimer in the
12: * documentation and/or other materials provided with the distribution.
13: * 3. Neither the name of the author nor the names of any co-contributors
14: * may be used to endorse or promote products derived from this software
15: * without specific prior written permission.
16: *
17: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27: * SUCH DAMAGE.
28: */
29:
30: /*
31: * machdep.c - machine-dependent routines
32: */
33:
34: #include <kernel.h>
1.1.1.1.2.1! nbrk 35: #include <locore.h>
1.1 nbrk 36: #include <cpu.h>
37:
38: /*
39: * Setup pages.
40: * This reserves some kernel pages which includes a page for
41: * kernel page directory, interrupt stack, boot stack, etc.
42: */
43: static void
44: page_setup(void)
45: {
46: struct mem_map *mem;
47: int i;
48:
49: /*
50: * Find empty slot, and set reserved pages
51: */
52: for (i = 0; i < NRESMEM; i++) {
53: mem = &boot_info->reserved[i];
54: if (mem->size == 0) {
55: mem->start = RESERVED_BASE;
56: mem->size = (RESERVED_MAX - RESERVED_BASE);
57: break;
58: }
59: }
60: ASSERT(i != NRESMEM);
61: }
62:
63: /*
64: * Cause an i386 machine reset.
65: */
66: void
67: machine_reset(void)
68: {
69: int i;
70:
71: /*
72: * Try to do keyboard reset.
73: */
1.1.1.1.2.1! nbrk 74: interrupt_disable();
1.1 nbrk 75: outb(0xfe, 0x64);
76: for (i = 0; i < 10000; i++)
77: outb(0, 0x80);
78:
79: /*
80: * Do cpu reset.
81: */
82: cpu_reset();
83: /* NOTREACHED */
84: }
85:
86: /*
1.1.1.1.2.1! nbrk 87: * Idle
! 88: */
! 89: void
! 90: machine_idle(void)
! 91: {
! 92:
! 93: cpu_idle();
! 94: }
! 95:
! 96:
! 97: /*
1.1 nbrk 98: * Machine-dependent startup code
99: */
100: void
101: machine_init(void)
102: {
103:
104: cpu_init();
105: #ifdef CONFIG_GDB
106: gdb_init();
107: #endif
108: page_setup();
109: interrupt_init();
110: }
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