xref: /openbsd/sys/arch/riscv64/include/sysarch.h (revision 4bdff4be)
1 /*	$OpenBSD: sysarch.h,v 1.1 2021/09/14 12:03:49 jca Exp $	*/
2 
3 /*
4  * Copyright (c) 2021 Jeremie Courreges-Anglas <jca@openbsd.org>
5  *
6  * Permission to use, copy, modify, and distribute this software for any
7  * purpose with or without fee is hereby granted, provided that the above
8  * copyright notice and this permission notice appear in all copies.
9  *
10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17  */
18 
19 #ifndef	_RISCV64_SYSARCH_H_
20 #define	_RISCV64_SYSARCH_H_
21 
22 /*
23  * Architecture specific syscalls (riscv64)
24  */
25 
26 #define	RISCV_SYNC_ICACHE	0
27 
28 struct riscv_sync_icache_args {
29 	u_int64_t	addr;		/* Virtual start address */
30 	size_t		len;		/* Region size */
31 };
32 
33 #ifndef _KERNEL
34 
35 #include <sys/cdefs.h>
36 
37 __BEGIN_DECLS
38 int	sysarch(int, void *);
39 __END_DECLS
40 
41 #endif	/* _KERNEL */
42 
43 #endif	/* _RISCV64_SYSARCH_H_ */
44