1*752d4226Sriastradh /* $NetBSD: io.h,v 1.10 2022/10/25 23:33:18 riastradh Exp $ */
26cb10275Sriastradh
36cb10275Sriastradh /*-
46cb10275Sriastradh * Copyright (c) 2013 The NetBSD Foundation, Inc.
56cb10275Sriastradh * All rights reserved.
66cb10275Sriastradh *
76cb10275Sriastradh * This code is derived from software contributed to The NetBSD Foundation
86cb10275Sriastradh * by Taylor R. Campbell.
96cb10275Sriastradh *
106cb10275Sriastradh * Redistribution and use in source and binary forms, with or without
116cb10275Sriastradh * modification, are permitted provided that the following conditions
126cb10275Sriastradh * are met:
136cb10275Sriastradh * 1. Redistributions of source code must retain the above copyright
146cb10275Sriastradh * notice, this list of conditions and the following disclaimer.
156cb10275Sriastradh * 2. Redistributions in binary form must reproduce the above copyright
166cb10275Sriastradh * notice, this list of conditions and the following disclaimer in the
176cb10275Sriastradh * documentation and/or other materials provided with the distribution.
186cb10275Sriastradh *
196cb10275Sriastradh * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
206cb10275Sriastradh * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
216cb10275Sriastradh * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
226cb10275Sriastradh * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
236cb10275Sriastradh * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
246cb10275Sriastradh * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
256cb10275Sriastradh * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
266cb10275Sriastradh * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
276cb10275Sriastradh * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
286cb10275Sriastradh * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
296cb10275Sriastradh * POSSIBILITY OF SUCH DAMAGE.
306cb10275Sriastradh */
316cb10275Sriastradh
326cb10275Sriastradh #ifndef _ASM_IO_H_
336cb10275Sriastradh #define _ASM_IO_H_
346cb10275Sriastradh
3577b5597aSriastradh #include <sys/cdefs.h>
3677b5597aSriastradh #include <sys/systm.h>
376cb10275Sriastradh
38a27e15b5Sriastradh #include <linux/string.h>
39*752d4226Sriastradh #include <linux/vmalloc.h>
40a27e15b5Sriastradh
41c17d3228Sriastradh #define memcpy_fromio(d,s,n) memcpy((d),__UNVOLATILE(s),(n))
42c17d3228Sriastradh #define memcpy_toio(d,s,n) memcpy(__UNVOLATILE(d),(s),(n))
436ac14ff8Sjmcneill
446ac14ff8Sjmcneill #if defined(__NetBSD__) && defined(__aarch64__)
45136ac01dSriastradh static inline void
memset_io(volatile void * b,int c,size_t len)46c17d3228Sriastradh memset_io(volatile void *b, int c, size_t len)
476ac14ff8Sjmcneill {
48c17d3228Sriastradh volatile uint8_t *ptr = b;
49878019c9Sjmcneill
50878019c9Sjmcneill while (len > 0) {
516ac14ff8Sjmcneill *ptr++ = c;
52878019c9Sjmcneill len--;
536ac14ff8Sjmcneill }
546ac14ff8Sjmcneill }
556ac14ff8Sjmcneill #else
56c17d3228Sriastradh #define memset_io(b,c,n) memset(__UNVOLATILE(b),(c),(n))
576ac14ff8Sjmcneill #endif
586cb10275Sriastradh
5977b5597aSriastradh /* XXX wrong place */
6077b5597aSriastradh #define __force
616cb10275Sriastradh
626cb10275Sriastradh #endif /* _ASM_IO_H_ */
63