sgi.h

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/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * sgi.h: Definitions specific to SGI machines.
 *
 * Copyright (C) 1996 David S. Miller ([email protected])
 */
#ifndef _ASM_SGI_SGI_H
#define _ASM_SGI_SGI_H

/* UP=UniProcessor MP=MultiProcessor(capable) */
enum sgi_mach {
    ip4,    /* R2k UP */
    ip5,    /* R2k MP */
    ip6,    /* R3k UP */
    ip7,    /* R3k MP */
    ip9,    /* R3k UP */
    ip12,   /* R3kA UP, Indigo */
    ip15,   /* R3kA MP */
    ip17,   /* R4K UP */
    ip19,   /* R4K MP */
    ip20,   /* R4K UP, Indigo */
    ip21,   /* TFP MP */
    ip22,   /* R4x00 UP, Indigo2 */
    ip25,   /* R10k MP */
    ip26,   /* TFP UP, Indigo2 */
    ip27,   /* R10k MP, R12k MP, Origin */
    ip28,   /* R10k UP, Indigo2 */
    ip30,   /* Octane */
    ip32,   /* O2 */
};

extern enum sgi_mach sgimach;
extern void sgi_sysinit(void);

/* Many I/O space registers are byte sized and are contained within
 * one byte per word, specifically the MSB, this macro helps out.
 */
#ifdef __MIPSEL__
#define SGI_MSB(regaddr)   (regaddr)
#else
#define SGI_MSB(regaddr)   ((regaddr) | 0x3)
#endif

#endif /* _ASM_SGI_SGI_H */