761eafa57b
To add more test case descriptions for architecture layer interface arch_start_cpu(). Signed-off-by: Enjia Mai <enjiax.mai@intel.com>
113 lines
2.5 KiB
C
113 lines
2.5 KiB
C
/*
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* Copyright (c) 2018 Intel Corporation.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr.h>
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#include <tc_util.h>
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#include <ztest.h>
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#include <kernel.h>
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#ifdef CONFIG_SMP
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#error Cannot test MP API if SMP is using the CPUs
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#endif
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BUILD_ASSERT(CONFIG_MP_NUM_CPUS > 1);
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#define CPU1_STACK_SIZE 1024
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K_THREAD_STACK_DEFINE(cpu1_stack, CPU1_STACK_SIZE);
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int cpu_arg;
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volatile int cpu_running;
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/**
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* @brief Tests for multi processing
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*
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* @defgroup kernel_mp_tests MP Tests
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*
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* @ingroup all_tests
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*
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* @{
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* @}
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*/
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FUNC_NORETURN void cpu1_fn(void *arg)
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{
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zassert_true(arg == &cpu_arg && *(int *)arg == 12345, "wrong arg");
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cpu_running = 1;
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while (1) {
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}
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}
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/**
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* @brief Test to verify CPU start
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*
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* @ingroup kernel_mp_tests
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*
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* @details
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* Test Objective:
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* - To verify kernel architecture layer shall provide a means to start non-boot
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* CPUs on SMP systems.
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* The way we verify it is to call it by give it parameters especially the
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* target executing function, etc. Then check if the function is running or
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* not.
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*
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* Testing techniques:
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* - Interface testing, function and block box testing,
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* dynamic analysis and testing
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*
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* Prerequisite Conditions:
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* - CONFIG_MP_NUM_CPUS > 1
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*
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* Input Specifications:
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* - CPU ID: the cpu want to start
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* - Stack structure
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* - Stack size
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* - Target executing function
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* - An argument that pass to the function
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*
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* Test Procedure:
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* -# In main thread, given and set a global variable cpu_arg to 12345.
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* -# Call arch_start_cpu() with parameters
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* -# Enter a while loop and wait for cpu_running equals to 1.
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* -# In target function, check if the address is &cpu_arg and its content
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* equal to 12345.
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* -# Set the global flag varible cpu_running to 1.
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* -# In main thread, check if the cpu_running equals to 1.
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*
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* Expected Test Result:
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* - The given function execute cpu is running and .
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*
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* Pass/Fail Criteria:
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* - Successful if the check of step 4, 6 are all pass.
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* - Failure if one of the check of step 4, 6 is failed.
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*
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* Assumptions and Constraints:
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* - This test using for the platform that support MP or SMP, in our current
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* scenario which own over two CPUs.
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*
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* @see arch_start_cpu()
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*/
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void test_mp_start(void)
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{
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cpu_arg = 12345;
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arch_start_cpu(1, cpu1_stack, CPU1_STACK_SIZE, cpu1_fn, &cpu_arg);
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while (!cpu_running) {
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}
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zassert_true(cpu_running, "cpu1 didn't start");
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}
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void test_main(void)
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{
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ztest_test_suite(multiprocessing,
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ztest_unit_test(test_mp_start));
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ztest_run_test_suite(multiprocessing);
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}
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