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tests: clock: tests for k_cycle_get_64

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This change adds tests for 64-bit cycle counters.

Signed-off-by: Christopher Friedt <chrisfriedt@gmail.com>
This commit is contained in:
Christopher Friedt 2021-10-29 20:12:40 -04:00
parent 918a574c88
commit 964b153f96
2 changed files with 39 additions and 4 deletions
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37
tests/kernel/common/src/clock.c
View file

@ -83,7 +83,7 @@ void test_clock_uptime(void)
}
/**
* @brief Test clock cycle functionality
* @brief Test 32-bit clock cycle functionality
*
* @details
* Test Objectve:
@ -122,7 +122,7 @@ void test_clock_uptime(void)
* @see k_cycle_get_32(), k_uptime_get_32()
*/
void test_clock_cycle(void)
void test_clock_cycle_32(void)
{
uint32_t c32, c0, c1, t32;
@ -160,6 +160,39 @@ void test_clock_cycle(void)
}
}
/**
* @brief Test 64-bit clock cycle functionality
*/
void test_clock_cycle_64(void)
{
uint32_t d32;
uint64_t d64;
uint32_t t32[2];
uint64_t t64[2];
if (!IS_ENABLED(CONFIG_TIMER_HAS_64BIT_CYCLE_COUNTER)) {
ztest_test_skip();
}
t64[0] = k_cycle_get_64();
t32[0] = k_cycle_get_32();
k_msleep(1);
t32[1] = k_cycle_get_32();
t64[1] = k_cycle_get_64();
d32 = MIN(t32[1] - t32[0], t32[0] - t32[1]);
d64 = MIN(t64[1] - t64[0], t64[1] - t64[0]);
zassert_true(d64 >= d32,
"k_cycle_get() (64-bit): d64: %" PRIu64 " < d32: %u", d64, d32);
zassert_true(d64 < (d32 << 1),
"k_cycle_get() (64-bit): d64: %" PRIu64 " >= 2 * d32: %u",
d64, (d32 << 1));
}
/*
*help function
*/

6
tests/kernel/common/src/main.c
View file

@ -37,7 +37,8 @@ extern void test_threads_access_atomic(void);
extern void test_errno(void);
extern void test_printk(void);
extern void test_timeout_order(void);
extern void test_clock_cycle(void);
extern void test_clock_cycle_32(void);
extern void test_clock_cycle_64(void);
extern void test_clock_uptime(void);
extern void test_ms_time_duration(void);
extern void test_multilib(void);
@ -156,7 +157,8 @@ void test_main(void)
ztest_unit_test(test_printk),
ztest_1cpu_unit_test(test_timeout_order),
ztest_user_unit_test(test_clock_uptime),
ztest_unit_test(test_clock_cycle),
ztest_unit_test(test_clock_cycle_32),
ztest_unit_test(test_clock_cycle_64),
ztest_unit_test(test_version),
ztest_unit_test(test_multilib),
ztest_unit_test(test_thread_context),