arch/mips/include/asm/sgi/sgi.h

   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,   /* 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
  35 extern enum sgi_mach sgimach;
  36 extern 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 */