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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * sgi.h: Definitions specific to SGI machines.
7 *
8 * Copyright (C) 1996 David S. Miller (dm@sgi.com)
9 */
10#ifndef _ASM_SGI_SGI_H
11#define _ASM_SGI_SGI_H
12
13/* UP=UniProcessor MP=MultiProcessor(capable) */
14enum sgi_mach {
15 ip4, /* R2k UP */
16 ip5, /* R2k MP */
17 ip6, /* R3k UP */
18 ip7, /* R3k MP */
19 ip9, /* R3k UP */
20 ip12, /* R3kA UP, Indigo */
21 ip15, /* R3kA MP */
22 ip17, /* R4K UP */
23 ip19, /* R4K MP */
24 ip20, /* R4K UP, Indigo */
25 ip21, /* TFP MP */
26 ip22, /* R4x00 UP, Indigo2 */
27 ip25, /* R10k MP */
28 ip26, /* TFP UP, Indigo2 */
29 ip27, /* R10k MP, R12k MP, Origin */
30 ip28, /* R10k UP, Indigo2 */
31 ip30, /* Octane */
32 ip32, /* O2 */
33};
34
35extern enum sgi_mach sgimach;
36extern void sgi_sysinit(void);
37
38/* Many I/O space registers are byte sized and are contained within
39 * one byte per word, specifically the MSB, this macro helps out.
40 */
41#ifdef __MIPSEL__
42#define SGI_MSB(regaddr) (regaddr)
43#else
44#define SGI_MSB(regaddr) ((regaddr) | 0x3)
45#endif
46
47#endif /* _ASM_SGI_SGI_H */