/*
* 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.
*/
#ifndef NVGPU_RWSEM_H
#define NVGPU_RWSEM_H
#ifdef __KERNEL__
#include <nvgpu/linux/rwsem.h>
#elif defined(__NVGPU_POSIX__)
#include <nvgpu/posix/rwsem.h>
#else
#include <nvgpu_rmos/include/rwsem.h>
#endif
/*
* struct nvgpu_rwsem
*
* Should be implemented per-OS in a separate library
* But implementation should adhere to rw_semaphore implementation
* as specified in Linux Documentation
*/
struct nvgpu_rwsem;
void nvgpu_rwsem_init(struct nvgpu_rwsem *rwsem);
void nvgpu_rwsem_up_read(struct nvgpu_rwsem *rwsem);
void nvgpu_rwsem_down_read(struct nvgpu_rwsem *rwsem);
void nvgpu_rwsem_up_write(struct nvgpu_rwsem *rwsem);
void nvgpu_rwsem_down_write(struct nvgpu_rwsem *rwsem);
#endif /* NVGPU_RWSEM_H */
