include/asm-mips/sgidefs.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  * Copyright (C) 1996 by Ralf Baechle
   7  *
   8  * Definitions commonly used in SGI style code.
   9  */
  10 #ifndef __ASM_SGIDEFS_H
  11 #define __ASM_SGIDEFS_H
  12
  13 /*
  14  * There are compilers out there that don't define _MIPS_ISA, _MIPS_SIM,
  15  * _MIPS_SZINT, _MIPS_SZLONG, _MIPS_SZPTR.  So we notify the user about this
  16  * problem.  The kernel sources are aware of this problem, so we don't warn
  17  * when compiling the kernel.
  18  */
  19 #if !defined(_MIPS_ISA) && !defined(__KERNEL__)
  20 #warning "Macro _MIPS_ISA has not been defined by specs file"
  21 #endif
  22
  23 #if !defined(_MIPS_SIM) && !defined(__KERNEL__)
  24 #warning "Macro _MIPS_SIM has not been defined by specs file"
  25 #endif
  26
  27 #if !defined(_MIPS_SZINT) && !defined(__KERNEL__)
  28 #warning "Macro _MIPS_SZINT has not been defined by specs file"
  29 #endif
  30
  31 #if !defined(_MIPS_SZLONG) && !defined(__KERNEL__)
  32 #warning "Macro _MIPS_SZLONG has not been defined by specs file"
  33 #endif
  34
  35 #if !defined(_MIPS_SZPTR) && !defined(__KERNEL__)
  36 #warning "Macro _MIPS_SZPTR has not been defined by specs file"
  37 #endif
  38
  39 #if (!defined(_MIPS_ISA) || \
  40      !defined(_MIPS_SIM) || \
  41      !defined(_MIPS_SZINT) || \
  42      !defined(_MIPS_SZLONG) || \
  43      !defined(_MIPS_SZPTR)) && !defined(__KERNEL__)
  44 #warning "Please update your GCC to GCC 2.7.2-4 or newer"
  45 #endif
  46
  47 /*
  48  * Now let's try our best to supply some reasonable default values for
  49  * whatever defines GCC didn't supply.  This cannot be done correct for
  50  * all possible combinations of options, so be careful with your options
  51  * to GCC.  Best bet is to keep your fingers off the a.out GCC and use
  52  * ELF GCC 2.7.2-3 where possible.
  53  */
  54 #ifndef _MIPS_ISA
  55 #if __mips == 1
  56 #define _MIPS_ISA       _MIPS_ISA_MIPS1
  57 /* It is impossible to handle the -mips2 case correct.  */
  58 #elif __mips == 3
  59 #define _MIPS_ISA       _MIPS_ISA_MIPS3
  60 #elif __mips == 4
  61 #define _MIPS_ISA       _MIPS_ISA_MIPS4
  62 #else /* __mips must be 5 */
  63 #define _MIPS_ISA       _MIPS_ISA_MIPS5
  64 #endif
  65 #endif
  66 #ifndef _MIPS_SIM
  67 #define _MIPS_SIM       _MIPS_SIM_ABI32
  68 #endif
  69 #ifndef _MIPS_SZINT
  70 #define _MIPS_SZINT     32
  71 #endif
  72 #ifndef _MIPS_SZLONG
  73 #define _MIPS_SZLONG    32
  74 #endif
  75 #ifndef _MIPS_SZPTR
  76 #define _MIPS_SZPTR     32
  77 #endif
  78
  79 /*
  80  * Definitions for the ISA level
  81  */
  82 #define _MIPS_ISA_MIPS1 1
  83 #define _MIPS_ISA_MIPS2 2
  84 #define _MIPS_ISA_MIPS3 3
  85 #define _MIPS_ISA_MIPS4 4
  86 #define _MIPS_ISA_MIPS5 5
  87
  88 /*
  89  * Subprogram calling convention
  90  *
  91  * At the moment only _MIPS_SIM_ABI32 is in use.  This will change rsn.
  92  * Until GCC 2.8.0 is released don't rely on this definitions because the
  93  * 64bit code is essentially using the 32bit interface model just with
  94  * 64bit registers.
  95  */
  96 #define _MIPS_SIM_ABI32         1
  97 #define _MIPS_SIM_NABI32        2
  98 #define _MIPS_SIM_ABI64         3
  99
 100 #endif /* __ASM_SGIDEFS_H */