1e17dd72aSJens Wiklander /* 2*4395abf7SJens Wiklander * Copyright (c) 2016-2017, Linaro Limited 3*4395abf7SJens Wiklander * 4*4395abf7SJens Wiklander * SPDX-License-Identifier: BSD-2-Clause 5e17dd72aSJens Wiklander * 6e17dd72aSJens Wiklander * Redistribution and use in source and binary forms, with or without 7e17dd72aSJens Wiklander * modification, are permitted provided that the following conditions are met: 8e17dd72aSJens Wiklander * 9e17dd72aSJens Wiklander * 1. Redistributions of source code must retain the above copyright notice, 10e17dd72aSJens Wiklander * this list of conditions and the following disclaimer. 11e17dd72aSJens Wiklander * 12e17dd72aSJens Wiklander * 2. Redistributions in binary form must reproduce the above copyright notice, 13e17dd72aSJens Wiklander * this list of conditions and the following disclaimer in the documentation 14e17dd72aSJens Wiklander * and/or other materials provided with the distribution. 15e17dd72aSJens Wiklander * 16e17dd72aSJens Wiklander * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 17e17dd72aSJens Wiklander * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18e17dd72aSJens Wiklander * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19e17dd72aSJens Wiklander * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 20e17dd72aSJens Wiklander * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21e17dd72aSJens Wiklander * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22e17dd72aSJens Wiklander * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23e17dd72aSJens Wiklander * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24e17dd72aSJens Wiklander * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25e17dd72aSJens Wiklander * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26e17dd72aSJens Wiklander * POSSIBILITY OF SUCH DAMAGE. 27e17dd72aSJens Wiklander */ 28e17dd72aSJens Wiklander 29e17dd72aSJens Wiklander #ifndef __ATOMIC_H 30e17dd72aSJens Wiklander #define __ATOMIC_H 31e17dd72aSJens Wiklander 32*4395abf7SJens Wiklander #include <compiler.h> 33e17dd72aSJens Wiklander #include <types_ext.h> 34e17dd72aSJens Wiklander 35e17dd72aSJens Wiklander uint32_t atomic_inc32(volatile uint32_t *v); 36e17dd72aSJens Wiklander uint32_t atomic_dec32(volatile uint32_t *v); 37e17dd72aSJens Wiklander 38*4395abf7SJens Wiklander static inline bool atomic_cas_uint(unsigned int *p, unsigned int *oval, 39*4395abf7SJens Wiklander unsigned int nval) 40*4395abf7SJens Wiklander { 41*4395abf7SJens Wiklander return __compiler_compare_and_swap(p, oval, nval); 42*4395abf7SJens Wiklander } 43*4395abf7SJens Wiklander 44*4395abf7SJens Wiklander static inline bool atomic_cas_u32(uint32_t *p, uint32_t *oval, uint32_t nval) 45*4395abf7SJens Wiklander { 46*4395abf7SJens Wiklander return __compiler_compare_and_swap(p, oval, nval); 47*4395abf7SJens Wiklander } 48*4395abf7SJens Wiklander 49*4395abf7SJens Wiklander static inline unsigned int atomic_load_uint(unsigned int *p) 50*4395abf7SJens Wiklander { 51*4395abf7SJens Wiklander return __compiler_atomic_load(p); 52*4395abf7SJens Wiklander } 53*4395abf7SJens Wiklander 54*4395abf7SJens Wiklander static inline unsigned int atomic_load_u32(unsigned int *p) 55*4395abf7SJens Wiklander { 56*4395abf7SJens Wiklander return __compiler_atomic_load(p); 57*4395abf7SJens Wiklander } 58*4395abf7SJens Wiklander 59*4395abf7SJens Wiklander static inline void atomic_store_uint(unsigned int *p, unsigned int val) 60*4395abf7SJens Wiklander { 61*4395abf7SJens Wiklander __compiler_atomic_store(p, val); 62*4395abf7SJens Wiklander } 63*4395abf7SJens Wiklander 64*4395abf7SJens Wiklander static inline void atomic_store_u32(uint32_t *p, uint32_t val) 65*4395abf7SJens Wiklander { 66*4395abf7SJens Wiklander __compiler_atomic_store(p, val); 67*4395abf7SJens Wiklander } 68*4395abf7SJens Wiklander 69e17dd72aSJens Wiklander #endif /*__ATOMIC_H*/ 70