NetBSD/sys/arch/powerpc/include/altivec.h
matt 8cd24529dc Add a SAVE/DISCARD flag to save_{fpu,vec}_lwp. Use it appropriately.
Nuke struct fpu and use struct fpreg instead (except for the names, they
were identical).  On MP machines, this will avoid an unneeded IPI to save
the register contents that are about to discarded.
2004-04-16 23:58:08 +00:00

62 lines
2.5 KiB
C

/* $NetBSD: altivec.h,v 1.9 2004/04/16 23:58:08 matt Exp $ */
/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Matt Thomas.
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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.
*/
#ifndef _POWERPC_ALTIVEC_H_
#define _POWERPC_ALTIVEC_H_
#define VSCR_SA 0x00000001 /* Saturation happended (sticky) */
#define VSCR_NJ 0x00010000 /* Non Java-IEEE-C9X FP mode */
#ifdef _KERNEL
#include "opt_multiprocessor.h"
#define ALTIVEC_SAVE 0
#define ALTIVEC_DISCARD 1
void enable_vec(void);
void save_vec_cpu(void);
void save_vec_lwp(struct lwp *, int /*discard*/);
#ifdef MULTIPROCESSOR
void mp_save_vec_lwp(struct lwp *);
#endif
void vzeropage(paddr_t);
void vcopypage(paddr_t, paddr_t); /* dst, src */
#endif
#endif /* _POWERPC_ALTIVEC_H_ */