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/*-
* Copyright (c) 2002, 2003 Marcel Moolenaar
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD: release/9.1.0/sys/ia64/include/_regset.h 139790 2005-01-06 22:18:23Z imp $
*/
#ifndef _MACHINE_REGSET_H_
#define _MACHINE_REGSET_H_
/*
* Create register sets, based on the runtime specification. This allows
* us to better reuse code and to copy sets around more efficiently.
* Contexts are defined in terms of these sets. These include trapframe,
* sigframe, pcb, mcontext, reg and fpreg. Other candidates are unwind
* and coredump related contexts.
*
* Notes:
* o Constant registers (r0, f0 and f1) are not accounted for,
* o The stacked registers (r32-r127) are not accounted for,
* o Predicates are not split across sets.
*/
/* A single FP register. */
union _ia64_fpreg {
unsigned char fpr_bits[16];
long double fpr_flt;
};
/*
* Special registers.
*/
struct _special {
unsigned long sp;
unsigned long unat; /* NaT before spilling */
unsigned long rp;
unsigned long pr;
unsigned long pfs;
unsigned long bspstore;
unsigned long rnat;
unsigned long __spare;
/* Userland context and syscalls */
unsigned long tp;
unsigned long rsc;
unsigned long fpsr;
unsigned long psr;
/* ASYNC: Interrupt specific */
unsigned long gp;
unsigned long ndirty;
unsigned long cfm;
unsigned long iip;
unsigned long ifa;
unsigned long isr;
};
struct _high_fp {
union _ia64_fpreg fr32;
union _ia64_fpreg fr33;
union _ia64_fpreg fr34;
union _ia64_fpreg fr35;
union _ia64_fpreg fr36;
union _ia64_fpreg fr37;
union _ia64_fpreg fr38;
union _ia64_fpreg fr39;
union _ia64_fpreg fr40;
union _ia64_fpreg fr41;
union _ia64_fpreg fr42;
union _ia64_fpreg fr43;
union _ia64_fpreg fr44;
union _ia64_fpreg fr45;
union _ia64_fpreg fr46;
union _ia64_fpreg fr47;
union _ia64_fpreg fr48;
union _ia64_fpreg fr49;
union _ia64_fpreg fr50;
union _ia64_fpreg fr51;
union _ia64_fpreg fr52;
union _ia64_fpreg fr53;
union _ia64_fpreg fr54;
union _ia64_fpreg fr55;
union _ia64_fpreg fr56;
union _ia64_fpreg fr57;
union _ia64_fpreg fr58;
union _ia64_fpreg fr59;
union _ia64_fpreg fr60;
union _ia64_fpreg fr61;
union _ia64_fpreg fr62;
union _ia64_fpreg fr63;
union _ia64_fpreg fr64;
union _ia64_fpreg fr65;
union _ia64_fpreg fr66;
union _ia64_fpreg fr67;
union _ia64_fpreg fr68;
union _ia64_fpreg fr69;
union _ia64_fpreg fr70;
union _ia64_fpreg fr71;
union _ia64_fpreg fr72;
union _ia64_fpreg fr73;
union _ia64_fpreg fr74;
union _ia64_fpreg fr75;
union _ia64_fpreg fr76;
union _ia64_fpreg fr77;
union _ia64_fpreg fr78;
union _ia64_fpreg fr79;
union _ia64_fpreg fr80;
union _ia64_fpreg fr81;
union _ia64_fpreg fr82;
union _ia64_fpreg fr83;
union _ia64_fpreg fr84;
union _ia64_fpreg fr85;
union _ia64_fpreg fr86;
union _ia64_fpreg fr87;
union _ia64_fpreg fr88;
union _ia64_fpreg fr89;
union _ia64_fpreg fr90;
union _ia64_fpreg fr91;
union _ia64_fpreg fr92;
union _ia64_fpreg fr93;
union _ia64_fpreg fr94;
union _ia64_fpreg fr95;
union _ia64_fpreg fr96;
union _ia64_fpreg fr97;
union _ia64_fpreg fr98;
union _ia64_fpreg fr99;
union _ia64_fpreg fr100;
union _ia64_fpreg fr101;
union _ia64_fpreg fr102;
union _ia64_fpreg fr103;
union _ia64_fpreg fr104;
union _ia64_fpreg fr105;
union _ia64_fpreg fr106;
union _ia64_fpreg fr107;
union _ia64_fpreg fr108;
union _ia64_fpreg fr109;
union _ia64_fpreg fr110;
union _ia64_fpreg fr111;
union _ia64_fpreg fr112;
union _ia64_fpreg fr113;
union _ia64_fpreg fr114;
union _ia64_fpreg fr115;
union _ia64_fpreg fr116;
union _ia64_fpreg fr117;
union _ia64_fpreg fr118;
union _ia64_fpreg fr119;
union _ia64_fpreg fr120;
union _ia64_fpreg fr121;
union _ia64_fpreg fr122;
union _ia64_fpreg fr123;
union _ia64_fpreg fr124;
union _ia64_fpreg fr125;
union _ia64_fpreg fr126;
union _ia64_fpreg fr127;
};
/*
* Preserved registers.
*/
struct _callee_saved {
unsigned long unat; /* NaT after spilling. */
unsigned long gr4;
unsigned long gr5;
unsigned long gr6;
unsigned long gr7;
unsigned long br1;
unsigned long br2;
unsigned long br3;
unsigned long br4;
unsigned long br5;
unsigned long lc;
unsigned long __spare;
};
struct _callee_saved_fp {
union _ia64_fpreg fr2;
union _ia64_fpreg fr3;
union _ia64_fpreg fr4;
union _ia64_fpreg fr5;
union _ia64_fpreg fr16;
union _ia64_fpreg fr17;
union _ia64_fpreg fr18;
union _ia64_fpreg fr19;
union _ia64_fpreg fr20;
union _ia64_fpreg fr21;
union _ia64_fpreg fr22;
union _ia64_fpreg fr23;
union _ia64_fpreg fr24;
union _ia64_fpreg fr25;
union _ia64_fpreg fr26;
union _ia64_fpreg fr27;
union _ia64_fpreg fr28;
union _ia64_fpreg fr29;
union _ia64_fpreg fr30;
union _ia64_fpreg fr31;
};
/*
* Scratch registers.
*/
struct _caller_saved {
unsigned long unat; /* NaT after spilling. */
unsigned long gr2;
unsigned long gr3;
unsigned long gr8;
unsigned long gr9;
unsigned long gr10;
unsigned long gr11;
unsigned long gr14;
unsigned long gr15;
unsigned long gr16;
unsigned long gr17;
unsigned long gr18;
unsigned long gr19;
unsigned long gr20;
unsigned long gr21;
unsigned long gr22;
unsigned long gr23;
unsigned long gr24;
unsigned long gr25;
unsigned long gr26;
unsigned long gr27;
unsigned long gr28;
unsigned long gr29;
unsigned long gr30;
unsigned long gr31;
unsigned long br6;
unsigned long br7;
unsigned long ccv;
unsigned long csd;
unsigned long ssd;
};
struct _caller_saved_fp {
union _ia64_fpreg fr6;
union _ia64_fpreg fr7;
union _ia64_fpreg fr8;
union _ia64_fpreg fr9;
union _ia64_fpreg fr10;
union _ia64_fpreg fr11;
union _ia64_fpreg fr12;
union _ia64_fpreg fr13;
union _ia64_fpreg fr14;
union _ia64_fpreg fr15;
};
#ifdef _KERNEL
void restore_callee_saved(const struct _callee_saved *);
void restore_callee_saved_fp(const struct _callee_saved_fp *);
void restore_high_fp(const struct _high_fp *);
void save_callee_saved(struct _callee_saved *);
void save_callee_saved_fp(struct _callee_saved_fp *);
void save_high_fp(struct _high_fp *);
#endif
#endif /* _MACHINE_REGSET_H_ */