Annotation of prex-old/boot/i386/pc/platform.h, Revision 1.1.1.1
1.1 nbrk 1: /*-
2: * Copyright (c) 2005-2006, 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: #ifndef _PC_PLATFORM_H
31: #define _PC_PLATFORM_H
32:
33: #ifdef CONFIG_MMU
34: #define PAGE_OFFSET 0x80000000
35: #else
36: #define PAGE_OFFSET 0x00000000
37: #endif
38:
39: #define BOOT_INFO 0x00002000
40: #define BOOT_INFO_SIZE 0x00000800
41: #define BOOT_STACK 0x00002800
42: #define ARCHIVE_START 0x00100000
43:
44: #ifndef __ASSEMBLY__
45: #include <boot.h>
46:
47: /*
48: * Page mapping
49: */
50: #define phys_to_virt(p_addr) (void *)((u_long)(p_addr) + PAGE_OFFSET)
51: #define virt_to_phys(v_addr) (void *)((u_long)(v_addr) - PAGE_OFFSET)
52:
53:
54: #if defined(DEBUG) && defined(CONFIG_DIAG_BOCHS)
55: /*
56: * Output Bochs virtual debug port.
57: */
58: static __inline void
59: putc(int c)
60: {
61: __asm__ __volatile__(
62: "inb $0xe9, %%al\n\t"
63: "cmpb $0xe9, %%al\n\t"
64: "jne 1f\n\t"
65: "movb %%bl, %%al\n\t"
66: "outb %%al, $0xe9\n\t"
67: "1:\n\t"
68: :
69: : "b" (c));
70: }
71: #endif
72:
73: extern void setup_bootinfo(struct boot_info **);
74:
75: #endif /* !__ASSEMBLY__ */
76: #endif /* !_PC_PLATFORM_H */
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