StdLib/Include/Ipf/machine/_regset.h

   1 /*      $NetBSD: _regset.h,v 1.1 2006/04/07 14:21:18 cherry Exp $       */
   2
   3 /*-
   4  * Copyright (c) 2002, 2003 Marcel Moolenaar
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  *
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  *
  28  * $FreeBSD$
  29  */
  30
  31 #ifndef _MACHINE_REGSET_H_
  32 #define _MACHINE_REGSET_H_
  33
  34 /*
  35  * Create register sets, based on the runtime specification. This allows
  36  * us to better reuse code and to copy sets around more efficiently.
  37  * Contexts are defined in terms of these sets. These include trapframe,
  38  * sigframe, pcb, mcontext, reg and fpreg. Other candidates are unwind
  39  * and coredump related contexts.
  40  *
  41  * Notes:
  42  * o  Constant registers (r0, f0 and f1) are not accounted for,
  43  * o  The stacked registers (r32-r127) are not accounted for,
  44  * o  Predicates are not split across sets.
  45  */
  46
  47 /* A single FP register. */
  48 union _ia64_fpreg {
  49         unsigned char   fpr_bits[16];
  50         long double     fpr_flt;
  51 };
  52
  53 /*
  54  * Special registers.
  55  */
  56 struct _special {
  57         unsigned long           sp;
  58         unsigned long           unat;           /* NaT before spilling */
  59         unsigned long           rp;
  60         unsigned long           pr;
  61         unsigned long           pfs;
  62         unsigned long           bspstore;
  63         unsigned long           rnat;
  64         unsigned long           __spare;
  65         /* Userland context and syscalls */
  66         unsigned long           tp;
  67         unsigned long           rsc;
  68         unsigned long           fpsr;
  69         unsigned long           psr;
  70         /* ASYNC: Interrupt specific */
  71         unsigned long           gp;
  72         unsigned long           ndirty;
  73         unsigned long           cfm;
  74         unsigned long           iip;
  75         unsigned long           ifa;
  76         unsigned long           isr;
  77 };
  78
  79 struct _high_fp {
  80         union _ia64_fpreg       fr32;
  81         union _ia64_fpreg       fr33;
  82         union _ia64_fpreg       fr34;
  83         union _ia64_fpreg       fr35;
  84         union _ia64_fpreg       fr36;
  85         union _ia64_fpreg       fr37;
  86         union _ia64_fpreg       fr38;
  87         union _ia64_fpreg       fr39;
  88         union _ia64_fpreg       fr40;
  89         union _ia64_fpreg       fr41;
  90         union _ia64_fpreg       fr42;
  91         union _ia64_fpreg       fr43;
  92         union _ia64_fpreg       fr44;
  93         union _ia64_fpreg       fr45;
  94         union _ia64_fpreg       fr46;
  95         union _ia64_fpreg       fr47;
  96         union _ia64_fpreg       fr48;
  97         union _ia64_fpreg       fr49;
  98         union _ia64_fpreg       fr50;
  99         union _ia64_fpreg       fr51;
 100         union _ia64_fpreg       fr52;
 101         union _ia64_fpreg       fr53;
 102         union _ia64_fpreg       fr54;
 103         union _ia64_fpreg       fr55;
 104         union _ia64_fpreg       fr56;
 105         union _ia64_fpreg       fr57;
 106         union _ia64_fpreg       fr58;
 107         union _ia64_fpreg       fr59;
 108         union _ia64_fpreg       fr60;
 109         union _ia64_fpreg       fr61;
 110         union _ia64_fpreg       fr62;
 111         union _ia64_fpreg       fr63;
 112         union _ia64_fpreg       fr64;
 113         union _ia64_fpreg       fr65;
 114         union _ia64_fpreg       fr66;
 115         union _ia64_fpreg       fr67;
 116         union _ia64_fpreg       fr68;
 117         union _ia64_fpreg       fr69;
 118         union _ia64_fpreg       fr70;
 119         union _ia64_fpreg       fr71;
 120         union _ia64_fpreg       fr72;
 121         union _ia64_fpreg       fr73;
 122         union _ia64_fpreg       fr74;
 123         union _ia64_fpreg       fr75;
 124         union _ia64_fpreg       fr76;
 125         union _ia64_fpreg       fr77;
 126         union _ia64_fpreg       fr78;
 127         union _ia64_fpreg       fr79;
 128         union _ia64_fpreg       fr80;
 129         union _ia64_fpreg       fr81;
 130         union _ia64_fpreg       fr82;
 131         union _ia64_fpreg       fr83;
 132         union _ia64_fpreg       fr84;
 133         union _ia64_fpreg       fr85;
 134         union _ia64_fpreg       fr86;
 135         union _ia64_fpreg       fr87;
 136         union _ia64_fpreg       fr88;
 137         union _ia64_fpreg       fr89;
 138         union _ia64_fpreg       fr90;
 139         union _ia64_fpreg       fr91;
 140         union _ia64_fpreg       fr92;
 141         union _ia64_fpreg       fr93;
 142         union _ia64_fpreg       fr94;
 143         union _ia64_fpreg       fr95;
 144         union _ia64_fpreg       fr96;
 145         union _ia64_fpreg       fr97;
 146         union _ia64_fpreg       fr98;
 147         union _ia64_fpreg       fr99;
 148         union _ia64_fpreg       fr100;
 149         union _ia64_fpreg       fr101;
 150         union _ia64_fpreg       fr102;
 151         union _ia64_fpreg       fr103;
 152         union _ia64_fpreg       fr104;
 153         union _ia64_fpreg       fr105;
 154         union _ia64_fpreg       fr106;
 155         union _ia64_fpreg       fr107;
 156         union _ia64_fpreg       fr108;
 157         union _ia64_fpreg       fr109;
 158         union _ia64_fpreg       fr110;
 159         union _ia64_fpreg       fr111;
 160         union _ia64_fpreg       fr112;
 161         union _ia64_fpreg       fr113;
 162         union _ia64_fpreg       fr114;
 163         union _ia64_fpreg       fr115;
 164         union _ia64_fpreg       fr116;
 165         union _ia64_fpreg       fr117;
 166         union _ia64_fpreg       fr118;
 167         union _ia64_fpreg       fr119;
 168         union _ia64_fpreg       fr120;
 169         union _ia64_fpreg       fr121;
 170         union _ia64_fpreg       fr122;
 171         union _ia64_fpreg       fr123;
 172         union _ia64_fpreg       fr124;
 173         union _ia64_fpreg       fr125;
 174         union _ia64_fpreg       fr126;
 175         union _ia64_fpreg       fr127;
 176 };
 177
 178 /*
 179  * Preserved registers.
 180  */
 181 struct _callee_saved {
 182         unsigned long           unat;           /* NaT after spilling. */
 183         unsigned long           gr4;
 184         unsigned long           gr5;
 185         unsigned long           gr6;
 186         unsigned long           gr7;
 187         unsigned long           br1;
 188         unsigned long           br2;
 189         unsigned long           br3;
 190         unsigned long           br4;
 191         unsigned long           br5;
 192         unsigned long           lc;
 193         unsigned long           __spare;
 194 };
 195
 196 struct _callee_saved_fp {
 197         union _ia64_fpreg       fr2;
 198         union _ia64_fpreg       fr3;
 199         union _ia64_fpreg       fr4;
 200         union _ia64_fpreg       fr5;
 201         union _ia64_fpreg       fr16;
 202         union _ia64_fpreg       fr17;
 203         union _ia64_fpreg       fr18;
 204         union _ia64_fpreg       fr19;
 205         union _ia64_fpreg       fr20;
 206         union _ia64_fpreg       fr21;
 207         union _ia64_fpreg       fr22;
 208         union _ia64_fpreg       fr23;
 209         union _ia64_fpreg       fr24;
 210         union _ia64_fpreg       fr25;
 211         union _ia64_fpreg       fr26;
 212         union _ia64_fpreg       fr27;
 213         union _ia64_fpreg       fr28;
 214         union _ia64_fpreg       fr29;
 215         union _ia64_fpreg       fr30;
 216         union _ia64_fpreg       fr31;
 217 };
 218
 219 /*
 220  * Scratch registers.
 221  */
 222 struct _caller_saved {
 223         unsigned long           unat;           /* NaT after spilling. */
 224         unsigned long           gr2;
 225         unsigned long           gr3;
 226         unsigned long           gr8;
 227         unsigned long           gr9;
 228         unsigned long           gr10;
 229         unsigned long           gr11;
 230         unsigned long           gr14;
 231         unsigned long           gr15;
 232         unsigned long           gr16;
 233         unsigned long           gr17;
 234         unsigned long           gr18;
 235         unsigned long           gr19;
 236         unsigned long           gr20;
 237         unsigned long           gr21;
 238         unsigned long           gr22;
 239         unsigned long           gr23;
 240         unsigned long           gr24;
 241         unsigned long           gr25;
 242         unsigned long           gr26;
 243         unsigned long           gr27;
 244         unsigned long           gr28;
 245         unsigned long           gr29;
 246         unsigned long           gr30;
 247         unsigned long           gr31;
 248         unsigned long           br6;
 249         unsigned long           br7;
 250         unsigned long           ccv;
 251         unsigned long           csd;
 252         unsigned long           ssd;
 253 };
 254
 255 struct _caller_saved_fp {
 256         union _ia64_fpreg       fr6;
 257         union _ia64_fpreg       fr7;
 258         union _ia64_fpreg       fr8;
 259         union _ia64_fpreg       fr9;
 260         union _ia64_fpreg       fr10;
 261         union _ia64_fpreg       fr11;
 262         union _ia64_fpreg       fr12;
 263         union _ia64_fpreg       fr13;
 264         union _ia64_fpreg       fr14;
 265         union _ia64_fpreg       fr15;
 266 };
 267
 268 #ifdef _KERNEL
 269 void    restore_callee_saved(const struct _callee_saved *);
 270 void    restore_callee_saved_fp(const struct _callee_saved_fp *);
 271 void    restore_high_fp(const struct _high_fp *);
 272 void    save_callee_saved(struct _callee_saved *);
 273 void    save_callee_saved_fp(struct _callee_saved_fp *);
 274 void    save_high_fp(struct _high_fp *);
 275 #endif
 276
 277 #endif  /* _MACHINE_REGSET_H_ */