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/*
 * Copyright (c) 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_LOCK_H
#define NVGPU_LOCK_H

#ifdef __KERNEL__
#include <nvgpu/linux/lock.h>
#elif defined(__NVGPU_POSIX__)
#include <nvgpu/posix/lock.h>
#else
#include <nvgpu_rmos/include/lock.h>
#endif

/*
 * struct nvgpu_mutex
 *
 * Should be implemented per-OS in a separate library
 * But implementation should adhere to mutex implementation
 * as specified in Linux Documentation
 */
struct nvgpu_mutex;

/*
 * struct nvgpu_spinlock
 *
 * Should be implemented per-OS in a separate library
 * But implementation should adhere to spinlock implementation
 * as specified in Linux Documentation
 */
struct nvgpu_spinlock;

/*
 * struct nvgpu_raw_spinlock
 *
 * Should be implemented per-OS in a separate library
 * But implementation should adhere to raw_spinlock implementation
 * as specified in Linux Documentation
 */
struct nvgpu_raw_spinlock;

int nvgpu_mutex_init(struct nvgpu_mutex *mutex);
void nvgpu_mutex_acquire(struct nvgpu_mutex *mutex);
void nvgpu_mutex_release(struct nvgpu_mutex *mutex);
int nvgpu_mutex_tryacquire(struct nvgpu_mutex *mutex);
void nvgpu_mutex_destroy(struct nvgpu_mutex *mutex);

void nvgpu_spinlock_init(struct nvgpu_spinlock *spinlock);
void nvgpu_spinlock_acquire(struct nvgpu_spinlock *spinlock);
void nvgpu_spinlock_release(struct nvgpu_spinlock *spinlock);

void nvgpu_raw_spinlock_init(struct nvgpu_raw_spinlock *spinlock);
void nvgpu_raw_spinlock_acquire(struct nvgpu_raw_spinlock *spinlock);
void nvgpu_raw_spinlock_release(struct nvgpu_raw_spinlock *spinlock);

#endif /* NVGPU_LOCK_H */