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git://nv-tegra.nvidia.com/linux-nvgpu.git
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132 lines
4.5 KiB
C
132 lines
4.5 KiB
C
/*
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* Copyright (c) 2019-2020, NVIDIA CORPORATION. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#ifndef UNIT_LOCK_H
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#define UNIT_LOCK_H
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struct gk20a;
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struct unit_module;
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/** @addtogroup SWUTS-interface-lock
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* @{
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*
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* Software Unit Test Specification for interface.lock
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*/
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/**
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* \name Lock Types
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* There are 3 types of locks supported by this unit test, defined as below.
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*/
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/** @{ */
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#define TYPE_MUTEX 0
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#define TYPE_SPINLOCK 1
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#define TYPE_RAW_SPINLOCK 2
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/** @} */
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/**
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* Test specification for: test_mutex_init
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*
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* Description: Simple test to check mutex init routine.
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*
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* Test Type: Feature
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*
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* Targets: nvgpu_mutex_init, nvgpu_mutex_destroy
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*
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* Input: None
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*
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* Steps:
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* - Initialize a mutex via the nvgpu_mutex_init function.
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* - Destroy the mutex via the nvgpu_mutex_destroy function.
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*
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* Output: Returns PASS if the steps above were executed successfully. FAIL
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* otherwise.
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*/
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int test_mutex_init(struct unit_module *m, struct gk20a *g, void *args);
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/**
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* Test specification for: test_mutex_tryacquire
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*
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* Description: Test to verify the behavior of mutex tryacquire function.
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*
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* Test Type: Feature
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*
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* Targets: nvgpu_mutex_init, nvgpu_mutex_acquire, nvgpu_mutex_tryacquire,
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* nvgpu_mutex_release, nvgpu_mutex_destroy,
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* nvgpu_posix_lock_try_acquire, nvgpu_posix_lock_release
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*
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* Input: None
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*
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* Steps:
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* - Initialize a mutex via the nvgpu_mutex_init function.
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* - Acquire the mutex.
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* - Perform a nvgpu_mutex_tryacquire on the mutex and ensure that the operation
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* returned a failure code.
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* - Release the mutex.
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* - Perform a nvgpu_mutex_tryacquire again and ensure that the operation
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* succeeded.
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* - Release and destroy the mutex.
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*
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* Output: Returns PASS if the steps above were executed successfully. FAIL
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* otherwise.
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*/
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int test_mutex_tryacquire(struct unit_module *m, struct gk20a *g, void *args);
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/**
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* Test specification for: test_lock_acquire_release
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*
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* Description: Test to verify the behavior of mutex, regular and raw spinlocks
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* acquire and release functions. For this purpose, there are 2 threads
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* involved: the regular main thread, and a worker thread.
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*
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* Test Type: Feature
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*
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* Targets: nvgpu_mutex_init, nvgpu_spinlock_init, nvgpu_raw_spinlock_init,
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* nvgpu_mutex_acquire, nvgpu_spinlock_acquire,
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* nvgpu_raw_spinlock_acquire, nvgpu_mutex_release,
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* nvgpu_spinlock_release, nvgpu_raw_spinlock_release,
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* nvgpu_posix_lock_acquire, nvgpu_posix_lock_release
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*
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* Input: @param args [in] Type of lock as defined by TYPE_* macros.
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*
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* Steps:
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* - Initialize the lock using the corresponding init function.
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* - Create a semaphore \a worker_sem and set the \a test_shared_flag to false.
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* - Acquire the lock using its corresponding acquire function.
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* - Create the worker thread and wait for it to signal that it is ready thanks
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* to the \a worker_sem.
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* - The worker thread then blocks trying to acquire the lock.
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* - The main thread then releases the lock and wait for a signal from the
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* worker thread via \a worker_sem.
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* - The worker thread should now be able to acquire the lock and update the
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* \a test_shared_flag.
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* - The main thread ensures that the \a test_shared_flag was updated.
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* - Release and destroy the lock and the worker thread.
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*
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* Output: Returns PASS if the steps above were executed successfully. FAIL
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* otherwise.
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*/
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int test_lock_acquire_release(struct unit_module *m, struct gk20a *g,
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void *args);
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/** }@ */
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#endif /* UNIT_LOCK_H */
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