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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 tmp1 tmp2
  57         sll     \tmp2, \tmp1, 5
  58         bgez    \tmp2, 2f
  59         fpu_save_16odd \thread
  60 2:
  61         fpu_save_16even \thread \tmp1                   # clobbers t1
  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 tmp
 105         mfc0    t0, CP0_STATUS
 106         sll     t1, t0, 5
 107         bgez    t1, 1f                          # 16 register mode?
 108
 109         fpu_restore_16odd a0
 110 1:      fpu_restore_16even a0, t0               # clobbers t0
 111         .endm
 112
 113         .macro  cpu_save_nonscratch thread
 114         LONG_S  s0, THREAD_REG16(\thread)
 115         LONG_S  s1, THREAD_REG17(\thread)
 116         LONG_S  s2, THREAD_REG18(\thread)
 117         LONG_S  s3, THREAD_REG19(\thread)
 118         LONG_S  s4, THREAD_REG20(\thread)
 119         LONG_S  s5, THREAD_REG21(\thread)
 120         LONG_S  s6, THREAD_REG22(\thread)
 121         LONG_S  s7, THREAD_REG23(\thread)
 122         LONG_S  sp, THREAD_REG29(\thread)
 123         LONG_S  fp, THREAD_REG30(\thread)
 124         .endm
 125
 126         .macro  cpu_restore_nonscratch thread
 127         LONG_L  s0, THREAD_REG16(\thread)
 128         LONG_L  s1, THREAD_REG17(\thread)
 129         LONG_L  s2, THREAD_REG18(\thread)
 130         LONG_L  s3, THREAD_REG19(\thread)
 131         LONG_L  s4, THREAD_REG20(\thread)
 132         LONG_L  s5, THREAD_REG21(\thread)
 133         LONG_L  s6, THREAD_REG22(\thread)
 134         LONG_L  s7, THREAD_REG23(\thread)
 135         LONG_L  sp, THREAD_REG29(\thread)
 136         LONG_L  fp, THREAD_REG30(\thread)
 137         LONG_L  ra, THREAD_REG31(\thread)
 138         .endm
 139
 140 #endif /* _ASM_ASMMACRO_64_H */