1 /*
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) */
14 enum 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, /* R8k/TFP MP */
26 ip22, /* R4x00 UP, Indy, Indigo2 */
27 ip25, /* R10k MP */
28 ip26, /* R8k/TFP UP, Indigo2 */
29 ip27, /* R10k MP, R12k MP, R14k MP, Origin 200/2k, Onyx2 */
30 ip28, /* R10k UP, Indigo2 Impact R10k */
31 ip30, /* R10k MP, R12k MP, R14k MP, Octane */
32 ip32, /* R5k UP, RM5200 UP, RM7k UP, R10k UP, R12k UP, O2 */
33 ip35, /* R14k MP, R16k MP, Origin 300/3k, Onyx3, Fuel, Tezro */
34 };
35
36 extern enum sgi_mach sgimach;
37 extern void sgi_sysinit(void);
38
39 /* Many I/O space registers are byte sized and are contained within
40 * one byte per word, specifically the MSB, this macro helps out.
41 */
42 #ifdef __MIPSEL__
43 #define SGI_MSB(regaddr) (regaddr)
44 #else
45 #define SGI_MSB(regaddr) ((regaddr) | 0x3)
46 #endif
47
48 #endif /* _ASM_SGI_SGI_H */