fp.h revision 86530
181147Stmm/*- 281147Stmm * Copyright 2001 by Thomas Moestl <tmm@FreeBSD.org>. All rights reserved. 381147Stmm * 481147Stmm * Redistribution and use in source and binary forms, with or without 581147Stmm * modification, are permitted provided that the following conditions 681147Stmm * are met: 781147Stmm * 1. Redistributions of source code must retain the above copyright 881147Stmm * notice, this list of conditions and the following disclaimer. 981147Stmm * 2. Redistributions in binary form must reproduce the above copyright 1081147Stmm * notice, this list of conditions and the following disclaimer in the 1181147Stmm * documentation and/or other materials provided with the distribution. 1281147Stmm * 1381392Sjake * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 1481147Stmm * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 1581147Stmm * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 1681392Sjake * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 1781147Stmm * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1881147Stmm * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1981147Stmm * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 2081147Stmm * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 2181147Stmm * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE 2281147Stmm * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2381147Stmm * 2481147Stmm * $FreeBSD: head/sys/sparc64/include/fp.h 86530 2001-11-18 04:00:22Z jake $ 2581147Stmm */ 2681147Stmm 2781147Stmm#ifndef _MACHINE_FP_H_ 2881147Stmm#define _MACHINE_FP_H_ 2981147Stmm 3081147Stmm/* A block of 8 double-precision (16 single-precision) FP registers. */ 3183053Sobrienstruct fpblock { 3281147Stmm u_long fpq_l[8]; 3381147Stmm}; 3481147Stmm 3583053Sobrienstruct fpstate { 3681147Stmm struct fpblock fp_fb[4]; 3781147Stmm u_long fp_fsr; 3881147Stmm u_long fp_fprs; 3981147Stmm}; 4081147Stmm 4186530Sjake#ifdef _KERNEL 4286530Sjake 4386530Sjakestruct pcb; 4486530Sjakestruct thread; 4586530Sjake 4683366Sjulianvoid fp_init_thread(struct pcb *); 4786530Sjakeint fp_enable_thread(struct thread *, struct trapframe *); 4886530Sjakeint fp_exception_other(struct thread *, struct trapframe *); 4981147Stmm/* 5081147Stmm * Note: The pointers passed to the next two functions must be aligned on 5181147Stmm * 64 byte boundaries. 5281147Stmm */ 5381147Stmmvoid savefpctx(struct fpstate *); 5481147Stmmvoid restorefpctx(struct fpstate *); 5581147Stmm 5686530Sjake#endif /* _KERNEL */ 5781147Stmm#endif /* !_MACHINE_FP_H_ */ 58