linux/arch/mips/include/asm/asmmacro-64.h
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   1/*
   2 * asmmacro.h: Assembler macros to make things easier to read.
   3 *
   4 * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
   5 * Copyright (C) 1998, 1999 Ralf Baechle
   6 * Copyright (C) 1999 Silicon Graphics, Inc.
   7 */
   8#ifndef _ASM_ASMMACRO_64_H
   9#define _ASM_ASMMACRO_64_H
  10
  11#include <asm/asm-offsets.h>
  12#include <asm/regdef.h>
  13#include <asm/fpregdef.h>
  14#include <asm/mipsregs.h>
  15
  16        .macro  fpu_save_16even thread tmp=t0
  17        cfc1    \tmp, fcr31
  18        sdc1    $f0,  THREAD_FPR0(\thread)
  19        sdc1    $f2,  THREAD_FPR2(\thread)
  20        sdc1    $f4,  THREAD_FPR4(\thread)
  21        sdc1    $f6,  THREAD_FPR6(\thread)
  22        sdc1    $f8,  THREAD_FPR8(\thread)
  23        sdc1    $f10, THREAD_FPR10(\thread)
  24        sdc1    $f12, THREAD_FPR12(\thread)
  25        sdc1    $f14, THREAD_FPR14(\thread)
  26        sdc1    $f16, THREAD_FPR16(\thread)
  27        sdc1    $f18, THREAD_FPR18(\thread)
  28        sdc1    $f20, THREAD_FPR20(\thread)
  29        sdc1    $f22, THREAD_FPR22(\thread)
  30        sdc1    $f24, THREAD_FPR24(\thread)
  31        sdc1    $f26, THREAD_FPR26(\thread)
  32        sdc1    $f28, THREAD_FPR28(\thread)
  33        sdc1    $f30, THREAD_FPR30(\thread)
  34        sw      \tmp, THREAD_FCR31(\thread)
  35        .endm
  36
  37        .macro  fpu_save_16odd thread
  38        sdc1    $f1,  THREAD_FPR1(\thread)
  39        sdc1    $f3,  THREAD_FPR3(\thread)
  40        sdc1    $f5,  THREAD_FPR5(\thread)
  41        sdc1    $f7,  THREAD_FPR7(\thread)
  42        sdc1    $f9,  THREAD_FPR9(\thread)
  43        sdc1    $f11, THREAD_FPR11(\thread)
  44        sdc1    $f13, THREAD_FPR13(\thread)
  45        sdc1    $f15, THREAD_FPR15(\thread)
  46        sdc1    $f17, THREAD_FPR17(\thread)
  47        sdc1    $f19, THREAD_FPR19(\thread)
  48        sdc1    $f21, THREAD_FPR21(\thread)
  49        sdc1    $f23, THREAD_FPR23(\thread)
  50        sdc1    $f25, THREAD_FPR25(\thread)
  51        sdc1    $f27, THREAD_FPR27(\thread)
  52        sdc1    $f29, THREAD_FPR29(\thread)
  53        sdc1    $f31, THREAD_FPR31(\thread)
  54        .endm
  55
  56        .macro  fpu_save_double thread status tmp
  57        sll     \tmp, \status, 5
  58        bgez    \tmp, 2f
  59        fpu_save_16odd \thread
  602:
  61        fpu_save_16even \thread \tmp
  62        .endm
  63
  64        .macro  fpu_restore_16even thread tmp=t0
  65        lw      \tmp, THREAD_FCR31(\thread)
  66        ldc1    $f0,  THREAD_FPR0(\thread)
  67        ldc1    $f2,  THREAD_FPR2(\thread)
  68        ldc1    $f4,  THREAD_FPR4(\thread)
  69        ldc1    $f6,  THREAD_FPR6(\thread)
  70        ldc1    $f8,  THREAD_FPR8(\thread)
  71        ldc1    $f10, THREAD_FPR10(\thread)
  72        ldc1    $f12, THREAD_FPR12(\thread)
  73        ldc1    $f14, THREAD_FPR14(\thread)
  74        ldc1    $f16, THREAD_FPR16(\thread)
  75        ldc1    $f18, THREAD_FPR18(\thread)
  76        ldc1    $f20, THREAD_FPR20(\thread)
  77        ldc1    $f22, THREAD_FPR22(\thread)
  78        ldc1    $f24, THREAD_FPR24(\thread)
  79        ldc1    $f26, THREAD_FPR26(\thread)
  80        ldc1    $f28, THREAD_FPR28(\thread)
  81        ldc1    $f30, THREAD_FPR30(\thread)
  82        ctc1    \tmp, fcr31
  83        .endm
  84
  85        .macro  fpu_restore_16odd thread
  86        ldc1    $f1,  THREAD_FPR1(\thread)
  87        ldc1    $f3,  THREAD_FPR3(\thread)
  88        ldc1    $f5,  THREAD_FPR5(\thread)
  89        ldc1    $f7,  THREAD_FPR7(\thread)
  90        ldc1    $f9,  THREAD_FPR9(\thread)
  91        ldc1    $f11, THREAD_FPR11(\thread)
  92        ldc1    $f13, THREAD_FPR13(\thread)
  93        ldc1    $f15, THREAD_FPR15(\thread)
  94        ldc1    $f17, THREAD_FPR17(\thread)
  95        ldc1    $f19, THREAD_FPR19(\thread)
  96        ldc1    $f21, THREAD_FPR21(\thread)
  97        ldc1    $f23, THREAD_FPR23(\thread)
  98        ldc1    $f25, THREAD_FPR25(\thread)
  99        ldc1    $f27, THREAD_FPR27(\thread)
 100        ldc1    $f29, THREAD_FPR29(\thread)
 101        ldc1    $f31, THREAD_FPR31(\thread)
 102        .endm
 103
 104        .macro  fpu_restore_double thread status tmp
 105        sll     \tmp, \status, 5
 106        bgez    \tmp, 1f                                # 16 register mode?
 107
 108        fpu_restore_16odd \thread
 1091:      fpu_restore_16even \thread \tmp
 110        .endm
 111
 112        .macro  cpu_save_nonscratch thread
 113        LONG_S  s0, THREAD_REG16(\thread)
 114        LONG_S  s1, THREAD_REG17(\thread)
 115        LONG_S  s2, THREAD_REG18(\thread)
 116        LONG_S  s3, THREAD_REG19(\thread)
 117        LONG_S  s4, THREAD_REG20(\thread)
 118        LONG_S  s5, THREAD_REG21(\thread)
 119        LONG_S  s6, THREAD_REG22(\thread)
 120        LONG_S  s7, THREAD_REG23(\thread)
 121        LONG_S  sp, THREAD_REG29(\thread)
 122        LONG_S  fp, THREAD_REG30(\thread)
 123        .endm
 124
 125        .macro  cpu_restore_nonscratch thread
 126        LONG_L  s0, THREAD_REG16(\thread)
 127        LONG_L  s1, THREAD_REG17(\thread)
 128        LONG_L  s2, THREAD_REG18(\thread)
 129        LONG_L  s3, THREAD_REG19(\thread)
 130        LONG_L  s4, THREAD_REG20(\thread)
 131        LONG_L  s5, THREAD_REG21(\thread)
 132        LONG_L  s6, THREAD_REG22(\thread)
 133        LONG_L  s7, THREAD_REG23(\thread)
 134        LONG_L  sp, THREAD_REG29(\thread)
 135        LONG_L  fp, THREAD_REG30(\thread)
 136        LONG_L  ra, THREAD_REG31(\thread)
 137        .endm
 138
 139#endif /* _ASM_ASMMACRO_64_H */
 140