2 * Copyright (c) 2000 Peter Wemm <peter@FreeBSD.org>
3 * Copyright (c) 2008 The DragonFly Project.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * $FreeBSD: src/sys/i386/include/nexusvar.h,v 1.1 2000/09/28 00:37:31 peter Exp $
28 * $DragonFly: src/sys/platform/pc64/include/nexusvar.h,v 1.1 2008/08/29 17:07:17 dillon Exp $
31 #ifndef _MACHINE_NEXUSVAR_H_
32 #define _MACHINE_NEXUSVAR_H_
34 #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES)
37 #include <sys/types.h>
43 enum nexus_device_ivars {
47 #define NEXUS_ACCESSOR(A, B, T) \
49 static __inline T nexus_get_ ## A(device_t dev) \
52 BUS_READ_IVAR(device_get_parent(dev), dev, NEXUS_IVAR_ ## B, &v); \
56 static __inline void nexus_set_ ## A(device_t dev, T t) \
58 uintptr_t v = (uintptr_t) t; \
59 BUS_WRITE_IVAR(device_get_parent(dev), dev, NEXUS_IVAR_ ## B, v); \
63 NEXUS_ACCESSOR(pcibus, PCIBUS, u_int32_t)
68 #endif /* _KERNEL || _KERNEL_STRUCTURES */
69 #endif /* !_MACHINE_NEXUSVAR_H_ */