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_ */