/* $NetBSD: altivec.h,v 1.19 2022/05/28 22:16:43 andvar 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.
*
* 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 happened (sticky) */
#define VSCR_NJ 0x00010000 /* Non Java-IEEE-C9X FP mode */
#ifdef _KERNEL
#include <sys/pcu.h>
#include <powerpc/mcontext.h>
struct lwp;
struct vreg;
struct trapframe;
extern const pcu_ops_t vec_ops;
bool vec_used_p(struct lwp *);
void vec_mark_used(struct lwp *);
void vec_restore_from_mcontext(struct lwp *, const mcontext_t *);
bool vec_save_to_mcontext(struct lwp *, mcontext_t *, unsigned int *);
int vec_siginfo_code(const struct trapframe *);
static __inline void
vec_load(void)
{
pcu_load(&vec_ops);
}
static __inline void
vec_save(lwp_t *l)
{
pcu_save(&vec_ops, l);
}
static __inline void
vec_discard(lwp_t *l)
{
pcu_discard(&vec_ops, l, false);
}
void vec_load_from_vreg(const struct vreg *);
void vec_unload_to_vreg(struct vreg *);
/* OEA only */
void vzeropage(paddr_t);
void vcopypage(paddr_t, paddr_t); /* dst, src */
#endif
#endif /* _POWERPC_ALTIVEC_H_ */
