altivec.h revision 1.13 
1/*	$NetBSD: altivec.h,v 1.13 2011/01/18 01:02:54 matt Exp $	*/
2
3/*-
4 * Copyright (c) 1999 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Matt Thomas.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#ifndef	_POWERPC_ALTIVEC_H_
33#define	_POWERPC_ALTIVEC_H_
34
35#define	VSCR_SA		0x00000001	/* Saturation happended (sticky) */
36#define	VSCR_NJ		0x00010000	/* Non Java-IEEE-C9X FP mode */
37
38#ifdef _KERNEL
39#include <powerpc/mcontext.h>
40
41enum vec_op { VEC_SAVE, VEC_DISCARD, VEC_SAVE_AND_RELEASE };
42struct lwp;
43struct vreg;
44struct trapframe;
45
46void	vec_enable(void);
47void	vec_save_cpu(enum vec_op);
48void	vec_save_lwp(struct lwp *, enum vec_op);
49void	vec_restore_from_mcontext(struct lwp *, const mcontext_t *);
50bool	vec_save_to_mcontext(struct lwp *, mcontext_t *, unsigned int *);
51
52void	vec_load_from_vreg(const struct vreg *);
53void	vec_unload_to_vreg(struct vreg *);
54
55int	vec_siginfo_code(const struct trapframe *);
56
57/* OEA only */
58void	vzeropage(paddr_t);
59void	vcopypage(paddr_t, paddr_t);	/* dst, src */
60#endif
61
62#endif	/* _POWERPC_ALTIVEC_H_ */
63