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Add a missing part of FPU support.

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bjh21 2001-03-08 21:12:48 +00:00
parent 6288edb5bd
commit c0aee693f5
1 changed files with 64 additions and 0 deletions
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sys/arch/arm26/arm26/fpuvar.h Normal file
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/* $NetBSD: fpuvar.h,v 1.1 2001/03/08 21:12:48 bjh21 Exp $ */
/*-
* Copyright (c) 2001 Ben Harris
* 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.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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.
*/
/* This file is part of NetBSD/arm26 -- a port of NetBSD to ARM2/3 machines. */
#ifndef _FPUVAR_H
#define _FPUVAR_H
#include <sys/device.h>
#include <machine/frame.h>
struct proc;
struct fpu_softc {
struct device sc_dev;
register_t sc_fputype;
void (*sc_ctxload)(struct fpframe *);
void (*sc_ctxsave)(struct fpframe *);
void (*sc_enable)(void);
void (*sc_disable)(void);
struct proc *sc_owner;
};
#ifdef _KERNEL
extern struct fpu_softc *the_fpu;
extern void fpu_swapout(struct proc *);
void fpctx_save_fpa(struct fpframe *);
void fpctx_load_fpa(struct fpframe *);
void fpu_enable_fpa(void);
void fpu_disable_fpa(void);
void fpctx_save_fppc(struct fpframe *);
void fpctx_load_fppc(struct fpframe *);
void fpu_enable_fppc(void);
void fpu_disable_fppc(void);
#endif
#endif