0e26efe2d7
The PT_{GET,SET}FPREGS requests use 'struct fpreg' and the NT_FPREGSET
core note stores a copy of 'struct fpreg'. As with x86 and the floating
point state there compared to the extended state in XSAVE, struct fpreg
on powerpc now only holds the 'base' FP state, and setting it via
PT_SETFPREGS leaves the extended vector state in a thread unchanged.
Reviewed by: jhibbits
Differential Revision: https://reviews.freebsd.org/D5004
56 lines
2.1 KiB
C
56 lines
2.1 KiB
C
/* $NetBSD: fpu_extern.h,v 1.3 2005/12/11 12:18:42 christos Exp $ */
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/* $FreeBSD$ */
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/*-
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* Copyright (c) 1995 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Christos Zoulas.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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struct proc;
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struct fpu;
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struct trapframe;
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union instr;
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struct fpemu;
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struct fpn;
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/* fpu.c */
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int fpu_emulate(struct trapframe *, struct fpu *);
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int fpu_execute(struct trapframe *, struct fpemu *, union instr *);
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/* fpu_explode.c */
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int fpu_itof(struct fpn *, u_int);
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int fpu_xtof(struct fpn *, u_int64_t);
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int fpu_stof(struct fpn *, u_int);
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int fpu_dtof(struct fpn *, u_int, u_int);
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/* fpu_implode.c */
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u_int fpu_ftoi(struct fpemu *, struct fpn *);
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u_int fpu_ftox(struct fpemu *, struct fpn *, u_int *);
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u_int fpu_ftos(struct fpemu *, struct fpn *);
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u_int fpu_ftod(struct fpemu *, struct fpn *, u_int *);
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