1a05eeebfSFrançois Tigeot /* 263aa39b7SFrançois Tigeot * Copyright (c) 2016-2019 François Tigeot <ftigeot@wolfpond.org> 3a05eeebfSFrançois Tigeot * All rights reserved. 4a05eeebfSFrançois Tigeot * 5a05eeebfSFrançois Tigeot * Redistribution and use in source and binary forms, with or without 6a05eeebfSFrançois Tigeot * modification, are permitted provided that the following conditions 7a05eeebfSFrançois Tigeot * are met: 8a05eeebfSFrançois Tigeot * 1. Redistributions of source code must retain the above copyright 9a05eeebfSFrançois Tigeot * notice unmodified, this list of conditions, and the following 10a05eeebfSFrançois Tigeot * disclaimer. 11a05eeebfSFrançois Tigeot * 2. Redistributions in binary form must reproduce the above copyright 12a05eeebfSFrançois Tigeot * notice, this list of conditions and the following disclaimer in the 13a05eeebfSFrançois Tigeot * documentation and/or other materials provided with the distribution. 14a05eeebfSFrançois Tigeot * 15a05eeebfSFrançois Tigeot * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16a05eeebfSFrançois Tigeot * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17a05eeebfSFrançois Tigeot * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18a05eeebfSFrançois Tigeot * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19a05eeebfSFrançois Tigeot * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20a05eeebfSFrançois Tigeot * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21a05eeebfSFrançois Tigeot * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22a05eeebfSFrançois Tigeot * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23a05eeebfSFrançois Tigeot * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24a05eeebfSFrançois Tigeot * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25a05eeebfSFrançois Tigeot */ 26a05eeebfSFrançois Tigeot 27a05eeebfSFrançois Tigeot #ifndef _ASM_ATOMIC_H_ 28a05eeebfSFrançois Tigeot #define _ASM_ATOMIC_H_ 29a05eeebfSFrançois Tigeot 30*ab413216SFrançois Tigeot #include <linux/compiler.h> 31*ab413216SFrançois Tigeot #include <linux/types.h> 32*ab413216SFrançois Tigeot #include <asm/cmpxchg.h> 33*ab413216SFrançois Tigeot #include <asm/barrier.h> 34*ab413216SFrançois Tigeot 35a05eeebfSFrançois Tigeot /* atomic_or: atomically set bits in a variable */ 36a05eeebfSFrançois Tigeot #define atomic_or(mask, addr) \ 37a05eeebfSFrançois Tigeot /* atomic *addr |= mask; */ \ 38a05eeebfSFrançois Tigeot __asm __volatile("lock orl %0, %1" \ 39a05eeebfSFrançois Tigeot : \ 40a05eeebfSFrançois Tigeot : "r" (mask), "m" (*addr) \ 41a05eeebfSFrançois Tigeot : "memory"); 42a05eeebfSFrançois Tigeot 4363aa39b7SFrançois Tigeot #define ATOMIC_INIT(i) { (i) } 4463aa39b7SFrançois Tigeot 45ed51adf4SFrançois Tigeot #include <asm/atomic64_64.h> 46ed51adf4SFrançois Tigeot 47a05eeebfSFrançois Tigeot #endif /* _ASM_ATOMIC_H_ */ 48