1/*	$NetBSD: sysarch.h,v 1.15 2021/10/06 05:33:15 skrll Exp $	*/
 2
 3/*
 4 * Copyright (c) 1996-1997 Mark Brinicombe.
 5 * All rights reserved.
 6 *
 7 * Redistribution and use in source and binary forms, with or without
 8 * modification, are permitted provided that the following conditions
 9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 *    must display the following acknowledgement:
17 *	This product includes software developed by Mark Brinicombe.
18 * 4. The name of the company nor the name of the author may be used to
19 *    endorse or promote products derived from this software without specific
20 *    prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
23 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
24 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 * IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
26 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
27 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35#ifndef _ARM_SYSARCH_H_
36#define _ARM_SYSARCH_H_
37
38#include <sys/cdefs.h>
39
40/*
41 * Pickup definition of size_t and uintptr_t
42 */
43#include <machine/ansi.h>
44#include <sys/stdint.h>
45#ifndef _KERNEL
46#include <stdbool.h>
47#endif
48
49#ifdef	_BSD_SIZE_T_
50typedef	_BSD_SIZE_T_ size_t;
51#undef	_BSD_SIZE_T_
52#endif
53
54/*
55 * Architecture specific syscalls (arm)
56 */
57
58#define ARM_SYNC_ICACHE		0
59#define ARM_DRAIN_WRITEBUF	1
60#define ARM_VFP_FPSCR		2
61#define ARM_FPU_USED		3
62
63struct arm_sync_icache_args {
64	uintptr_t	addr;		/* Virtual start address */
65	size_t		len;		/* Region size */
66};
67
68struct arm_vfp_fpscr_args {
69	uint32_t	fpscr_clear;	/* bits to clear */
70	uint32_t	fpscr_set;	/* bits to set */
71};
72
73struct arm_unaligned_faults_args {
74	bool		enabled;	/* unaligned faults are enabled */
75};
76
77#ifndef _KERNEL
78__BEGIN_DECLS
79int	arm_sync_icache(uintptr_t, size_t);
80int	arm_drain_writebuf(void);
81int	sysarch(int, void *);
82__END_DECLS
83#endif
84
85#endif /* !_ARM_SYSARCH_H_ */