spinlock_fairness.c File Reference

#include "zephyr/ztest_test.h"
#include <zephyr/kernel.h>
#include <zephyr/ztest.h>
#include <zephyr/spinlock.h>

Macros
#define	STACK_SIZE   (8 * 1024)
#define	CORES_NUM   CONFIG_MP_MAX_NUM_CPUS
#define	FAIRNESS_TEST_CYCLES_PER_CORE   1000

Functions
static	K_THREAD_STACK_ARRAY_DEFINE (tstack, CONFIG_MP_MAX_NUM_CPUS,(8 *1024))
static struct k_thread *	get_thread (uint8_t core_id)
static void	test_thread (void *arg1, void *arg2, void *arg3)
	Execution thread which runs concurrently on each CPU in the system.
static void	test_init (void)
	ZTEST (spinlock, test_spinlock_fairness)
	Test spinlock acquisition fairness.

Variables
static struct k_thread	tthread [CONFIG_MP_MAX_NUM_CPUS]
static uint32_t	spinlock_grabbed [CONFIG_MP_MAX_NUM_CPUS]
static atomic_t	fairness_test_cycles
static struct k_spinlock	lock
static atomic_t	start_sync

Macro Definition Documentation

CORES_NUM

#define CORES_NUM   CONFIG_MP_MAX_NUM_CPUS

FAIRNESS_TEST_CYCLES_PER_CORE

#define FAIRNESS_TEST_CYCLES_PER_CORE   1000

STACK_SIZE

#define STACK_SIZE   (8 * 1024)

Function Documentation

get_thread()

static struct k_thread * get_thread ( uint8_t  core_id )

inlinestatic

K_THREAD_STACK_ARRAY_DEFINE()

static K_THREAD_STACK_ARRAY_DEFINE ( tstack  , CONFIG_MP_MAX_NUM_CPUS  , (8 *1024)    )

static

test_init()

static void test_init ( void  )

static

test_thread()

static void test_thread ( void *  arg1, void *  arg2, void *  arg3  )

static

Execution thread which runs concurrently on each CPU in the system.

Parameters

[in]	arg1	- thread argument 1
[in]	arg2	- thread argument 2
[in]	arg3	- thread argument 3

Variable Documentation

fairness_test_cycles

atomic_t fairness_test_cycles

static

lock

struct k_spinlock lock

static

spinlock_grabbed

uint32_t spinlock_grabbed[CONFIG_MP_MAX_NUM_CPUS]

static

start_sync

atomic_t start_sync

static

tthread

struct k_thread tthread[CONFIG_MP_MAX_NUM_CPUS]

static