1 /*- 2 * Copyright (c) 2000 Peter Wemm <peter@FreeBSD.org> 3 * Copyright (c) 2008 The DragonFly Project. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 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. 14 * 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 25 * SUCH DAMAGE. 26 * 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 $ 29 */ 30 31 #ifndef _MACHINE_NEXUSVAR_H_ 32 #define _MACHINE_NEXUSVAR_H_ 33 34 #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES) 35 36 #ifndef _SYS_TYPES_H_ 37 #include <sys/types.h> 38 #endif 39 #ifndef _SYS_CONF_H_ 40 #include <sys/bus.h> 41 #endif 42 43 enum nexus_device_ivars { 44 NEXUS_IVAR_PCIBUS 45 }; 46 47 #define NEXUS_ACCESSOR(A, B, T) \ 48 \ 49 static __inline T nexus_get_ ## A(device_t dev) \ 50 { \ 51 uintptr_t v; \ 52 BUS_READ_IVAR(device_get_parent(dev), dev, NEXUS_IVAR_ ## B, &v); \ 53 return (T) v; \ 54 } \ 55 \ 56 static __inline void nexus_set_ ## A(device_t dev, T t) \ 57 { \ 58 uintptr_t v = (uintptr_t) t; \ 59 BUS_WRITE_IVAR(device_get_parent(dev), dev, NEXUS_IVAR_ ## B, v); \ 60 } 61 62 #ifdef _KERNEL 63 NEXUS_ACCESSOR(pcibus, PCIBUS, u_int32_t) 64 #endif 65 66 #undef NEXUS_ACCESSOR 67 68 #endif /* _KERNEL || _KERNEL_STRUCTURES */ 69 #endif /* !_MACHINE_NEXUSVAR_H_ */ 70