1 /* $NetBSD: altivec.h,v 1.16 2013/08/22 19:50:54 drochner 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 <sys/pcu.h>
40 #include <powerpc/mcontext.h>
41
42 struct lwp;
43 struct vreg;
44 struct trapframe;
45
46 extern const pcu_ops_t vec_ops;
47
48 bool vec_used_p(struct lwp *);
49 void vec_mark_used(struct lwp *);
50
51 void vec_restore_from_mcontext(struct lwp *, const mcontext_t *);
52 bool vec_save_to_mcontext(struct lwp *, mcontext_t *, unsigned int *);
53
54 int vec_siginfo_code(const struct trapframe *);
55
56 static inline void
vec_load(void)57 vec_load(void)
58 {
59 pcu_load(&vec_ops);
60 }
61
62 static inline void
vec_save(void)63 vec_save(void)
64 {
65 pcu_save(&vec_ops);
66 }
67
68 static inline void
vec_discard(void)69 vec_discard(void)
70 {
71 pcu_discard(&vec_ops, false);
72 }
73
74 void vec_load_from_vreg(const struct vreg *);
75 void vec_unload_to_vreg(struct vreg *);
76
77 /* OEA only */
78 void vzeropage(paddr_t);
79 void vcopypage(paddr_t, paddr_t); /* dst, src */
80 #endif
81
82 #endif /* _POWERPC_ALTIVEC_H_ */
83