1*a8845456Sriastradh /* $NetBSD: mutex.h,v 1.10 2023/07/12 12:50:13 riastradh Exp $ */ 2b07ec3fcSad 3b07ec3fcSad /*- 4b07ec3fcSad * Copyright (c) 2002, 2007 The NetBSD Foundation, Inc. 5b07ec3fcSad * All rights reserved. 6b07ec3fcSad * 7b07ec3fcSad * This code is derived from software contributed to The NetBSD Foundation 8b07ec3fcSad * by Jason R. Thorpe and Andrew Doran. 9b07ec3fcSad * 10b07ec3fcSad * Redistribution and use in source and binary forms, with or without 11b07ec3fcSad * modification, are permitted provided that the following conditions 12b07ec3fcSad * are met: 13b07ec3fcSad * 1. Redistributions of source code must retain the above copyright 14b07ec3fcSad * notice, this list of conditions and the following disclaimer. 15b07ec3fcSad * 2. Redistributions in binary form must reproduce the above copyright 16b07ec3fcSad * notice, this list of conditions and the following disclaimer in the 17b07ec3fcSad * documentation and/or other materials provided with the distribution. 18b07ec3fcSad * 19b07ec3fcSad * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20b07ec3fcSad * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21b07ec3fcSad * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22b07ec3fcSad * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23b07ec3fcSad * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24b07ec3fcSad * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25b07ec3fcSad * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26b07ec3fcSad * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27b07ec3fcSad * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28b07ec3fcSad * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29b07ec3fcSad * POSSIBILITY OF SUCH DAMAGE. 30b07ec3fcSad */ 31b07ec3fcSad 32b07ec3fcSad #ifndef _SPARC64_MUTEX_H_ 33b07ec3fcSad #define _SPARC64_MUTEX_H_ 34b07ec3fcSad 35*a8845456Sriastradh #include <sys/types.h> 36*a8845456Sriastradh 3778272616Sriastradh #ifdef __MUTEX_PRIVATE 3878272616Sriastradh #include <machine/intr.h> 39d7dc966cSmartin #include <machine/psl.h> 4078272616Sriastradh #endif 4178272616Sriastradh 42b07ec3fcSad struct kmutex { 43b07ec3fcSad union { 44b07ec3fcSad volatile uintptr_t mtxa_owner; 45b07ec3fcSad #ifdef __MUTEX_PRIVATE 46b07ec3fcSad struct { 47b07ec3fcSad uint8_t mtxs_unused; 48b07ec3fcSad __cpu_simple_lock_t mtxs_lock; 49b07ec3fcSad ipl_cookie_t mtxs_ipl; 50b07ec3fcSad uint8_t mtxs_dummy; 51b07ec3fcSad } s; 52b07ec3fcSad #endif 53b07ec3fcSad } u; 54b07ec3fcSad }; 55b07ec3fcSad 56b07ec3fcSad #ifdef __MUTEX_PRIVATE 57b07ec3fcSad 58b07ec3fcSad #define mtx_owner u.mtxa_owner 59b07ec3fcSad #define mtx_ipl u.s.mtxs_ipl 60b07ec3fcSad #define mtx_lock u.s.mtxs_lock 61b07ec3fcSad 62b07ec3fcSad #define __HAVE_MUTEX_STUBS 1 63b07ec3fcSad #define __HAVE_SIMPLE_MUTEXES 1 64b07ec3fcSad 65b07ec3fcSad #endif /* __MUTEX_PRIVATE */ 66b07ec3fcSad 67b07ec3fcSad #endif /* _SPARC64_MUTEX_H_ */ 68