sys/mips/include/locore.h

   1 /* $NetBSD: locore.h,v 1.78 2007/10/17 19:55:36 garbled Exp $ */
   2
   3 /*
   4  * Copyright 1996 The Board of Trustees of The Leland Stanford
   5  * Junior University. All Rights Reserved.
   6  *
   7  * Permission to use, copy, modify, and distribute this
   8  * software and its documentation for any purpose and without
   9  * fee is hereby granted, provided that the above copyright
  10  * notice appear in all copies.  Stanford University
  11  * makes no representations about the suitability of this
  12  * software for any purpose.  It is provided "as is" without
  13  * express or implied warranty.
  14  *
  15  * $FreeBSD$
  16  */
  17
  18 /*
  19  * Jump table for MIPS cpu locore functions that are implemented
  20  * differently on different generations, or instruction-level
  21  * archtecture (ISA) level, the Mips family.
  22  *
  23  * We currently provide support for MIPS I and MIPS III.
  24  */
  25
  26 #ifndef _MIPS_LOCORE_H
  27 #define  _MIPS_LOCORE_H
  28
  29 #include <machine/cpufunc.h>
  30 #include <machine/cpuregs.h>
  31 #include <machine/frame.h>
  32 #include <machine/md_var.h>
  33
  34 struct tlb;
  35
  36 /*
  37  * CPU identification, from PRID register.
  38  */
  39 typedef int mips_prid_t;
  40
  41 #define MIPS_PRID_REV(x)        (((x) >>  0) & 0x00ff)
  42 #define MIPS_PRID_IMPL(x)       (((x) >>  8) & 0x00ff)
  43
  44 /* pre-MIPS32/64 */
  45 #define MIPS_PRID_RSVD(x)       (((x) >> 16) & 0xffff)
  46 #define MIPS_PRID_REV_MIN(x)    ((MIPS_PRID_REV(x) >> 0) & 0x0f)
  47 #define MIPS_PRID_REV_MAJ(x)    ((MIPS_PRID_REV(x) >> 4) & 0x0f)
  48
  49 /* MIPS32/64 */
  50 #define MIPS_PRID_CID(x)        (((x) >> 16) & 0x00ff)  /* Company ID */
  51 #define     MIPS_PRID_CID_PREHISTORIC   0x00    /* Not MIPS32/64 */
  52 #define     MIPS_PRID_CID_MTI           0x01    /* MIPS Technologies, Inc. */
  53 #define     MIPS_PRID_CID_BROADCOM      0x02    /* Broadcom */
  54 #define     MIPS_PRID_CID_ALCHEMY       0x03    /* Alchemy Semiconductor */
  55 #define     MIPS_PRID_CID_SIBYTE        0x04    /* SiByte */
  56 #define     MIPS_PRID_CID_SANDCRAFT     0x05    /* SandCraft */
  57 #define     MIPS_PRID_CID_PHILIPS       0x06    /* Philips */
  58 #define     MIPS_PRID_CID_TOSHIBA       0x07    /* Toshiba */
  59 #define     MIPS_PRID_CID_LSI           0x08    /* LSI */
  60                                 /*      0x09    unannounced */
  61                                 /*      0x0a    unannounced */
  62 #define     MIPS_PRID_CID_LEXRA         0x0b    /* Lexra */
  63 #define MIPS_PRID_COPTS(x)      (((x) >> 24) & 0x00ff)  /* Company Options */
  64
  65 #ifdef _KERNEL
  66 #ifdef __HAVE_MIPS_MACHDEP_CACHE_CONFIG
  67 void mips_machdep_cache_config(void);
  68 #endif
  69 #endif  /* _KERNEL */
  70 #endif  /* _MIPS_LOCORE_H */