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/*
* Copyright (c) 2017-2018, NVIDIA CORPORATION. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
/* This file contains NVGPU_* high-level abstractions for various
* memor-barrier operations available in linux/kernel. Every OS
* should provide their own OS specific calls under this common API
*/
#ifndef NVGPU_BARRIER_H
#define NVGPU_BARRIER_H
#ifdef __KERNEL__
#include <nvgpu/linux/barrier.h>
#elif defined(__NVGPU_POSIX__)
#include <nvgpu/posix/barrier.h>
#else
#include <nvgpu_rmos/include/barrier.h>
#endif
#define nvgpu_mb() __nvgpu_mb()
#define nvgpu_rmb() __nvgpu_rmb()
#define nvgpu_wmb() __nvgpu_wmb()
#define nvgpu_smp_mb() __nvgpu_smp_mb()
#define nvgpu_smp_rmb() __nvgpu_smp_rmb()
#define nvgpu_smp_wmb() __nvgpu_smp_wmb()
#define nvgpu_read_barrier_depends() __nvgpu_read_barrier_depends()
#define nvgpu_smp_read_barrier_depends() __nvgpu_smp_read_barrier_depends()
#define NV_ACCESS_ONCE(x) __NV_ACCESS_ONCE(x)
/*
* Sometimes we want to prevent speculation.
*/
#ifdef __NVGPU_PREVENT_UNTRUSTED_SPECULATION
#define nvgpu_speculation_barrier() __nvgpu_speculation_barrier()
#else
#define nvgpu_speculation_barrier()
#endif
#endif /* NVGPU_BARRIER_H */
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