1*a9643ea8Slogwang /* 2*a9643ea8Slogwang * Copyright (c) 2010 Kip Macy All rights reserved. 3*a9643ea8Slogwang * Copyright (c) 2013 Patrick Kelsey. All rights reserved. 4*a9643ea8Slogwang * Copyright (C) 2017 THL A29 Limited, a Tencent company. 5*a9643ea8Slogwang * All rights reserved. 6*a9643ea8Slogwang * 7*a9643ea8Slogwang * Redistribution and use in source and binary forms, with or without 8*a9643ea8Slogwang * modification, are permitted provided that the following conditions are met: 9*a9643ea8Slogwang * 10*a9643ea8Slogwang * 1. Redistributions of source code must retain the above copyright notice, this 11*a9643ea8Slogwang * list of conditions and the following disclaimer. 12*a9643ea8Slogwang * 2. Redistributions in binary form must reproduce the above copyright notice, 13*a9643ea8Slogwang * this list of conditions and the following disclaimer in the documentation 14*a9643ea8Slogwang * and/or other materials provided with the distribution. 15*a9643ea8Slogwang * 16*a9643ea8Slogwang * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 17*a9643ea8Slogwang * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 18*a9643ea8Slogwang * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 19*a9643ea8Slogwang * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR 20*a9643ea8Slogwang * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 21*a9643ea8Slogwang * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 22*a9643ea8Slogwang * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 23*a9643ea8Slogwang * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24*a9643ea8Slogwang * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 25*a9643ea8Slogwang * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26*a9643ea8Slogwang * 27*a9643ea8Slogwang */ 28*a9643ea8Slogwang 29*a9643ea8Slogwang #ifndef _FSTACK_SYS__MUTEX_H_ 30*a9643ea8Slogwang #define _FSTACK_SYS__MUTEX_H_ 31*a9643ea8Slogwang 32*a9643ea8Slogwang #include <machine/param.h> 33*a9643ea8Slogwang 34*a9643ea8Slogwang #include "ff_host_interface.h" 35*a9643ea8Slogwang 36*a9643ea8Slogwang /* 37*a9643ea8Slogwang * Sleep/spin mutex 38*a9643ea8Slogwang */ 39*a9643ea8Slogwang struct mtx { 40*a9643ea8Slogwang struct lock_object lock_object; 41*a9643ea8Slogwang ff_mutex_t mtx_lock; 42*a9643ea8Slogwang }; 43*a9643ea8Slogwang 44*a9643ea8Slogwang /* 45*a9643ea8Slogwang * Members of struct mtx_padalign must mirror members of struct mtx. 46*a9643ea8Slogwang * mtx_padalign mutexes can use the mtx(9) API transparently without 47*a9643ea8Slogwang * modification. 48*a9643ea8Slogwang */ 49*a9643ea8Slogwang struct mtx_padalign { 50*a9643ea8Slogwang struct lock_object lock_object; 51*a9643ea8Slogwang ff_mutex_t mtx_lock; 52*a9643ea8Slogwang } __aligned(CACHE_LINE_SIZE); 53*a9643ea8Slogwang 54*a9643ea8Slogwang #endif /* _FSTACK_SYS__MUTEX_H_ */ 55