[kernel] remove critical_section, move everything to spinlocks

kernel/semaphore.c

@@ -26,16 +26,16 @@ void sem_init(semaphore_t *sem, unsigned int value)
 
 void sem_destroy(semaphore_t *sem)
 {
-	enter_critical_section();
+    THREAD_LOCK(state);
 	sem->count = 0;
 	wait_queue_destroy(&sem->wait, true);
-	exit_critical_section();
+    THREAD_UNLOCK(state);
 }
 
 status_t sem_post(semaphore_t *sem, bool resched)
 {
 	status_t ret = NO_ERROR;
-	enter_critical_section();
+    THREAD_LOCK(state);
 
 	/*
 	 * If the count is or was negative then a thread is waiting for a resource, otherwise
@@ -44,14 +44,14 @@ status_t sem_post(semaphore_t *sem, bool resched)
 	if (unlikely(++sem->count <= 0))
 		wait_queue_wake_one(&sem->wait, resched, NO_ERROR);
 
-	exit_critical_section();
+    THREAD_UNLOCK(state);
 	return ret;
 }
 
 status_t sem_wait(semaphore_t *sem)
 {
 	status_t ret = NO_ERROR;
-	enter_critical_section();
+    THREAD_LOCK(state);
 
 	/*
 	 * If there are no resources available then we need to
@@ -60,28 +60,28 @@ status_t sem_wait(semaphore_t *sem)
 	if (unlikely(--sem->count < 0))
 		ret = wait_queue_block(&sem->wait, INFINITE_TIME);
 
-	exit_critical_section();
+    THREAD_UNLOCK(state);
 	return ret;
 }
 
 status_t sem_trywait(semaphore_t *sem)
 {
 	status_t ret = NO_ERROR;
-	enter_critical_section();
+    THREAD_LOCK(state);
 
 	if (unlikely(sem->count <= 0))
 		ret = ERR_NOT_READY;
 	else
 		sem->count--;
 
-	exit_critical_section();
+    THREAD_UNLOCK(state);
 	return ret;
 }
 
 status_t sem_timedwait(semaphore_t *sem, lk_time_t timeout)
 {
 	status_t ret = NO_ERROR;
-	enter_critical_section();
+    THREAD_LOCK(state);
 
 	if (unlikely(--sem->count < 0)) {
 		ret = wait_queue_block(&sem->wait, timeout);
@@ -92,6 +92,6 @@ status_t sem_timedwait(semaphore_t *sem, lk_time_t timeout)
 		}
 	}
 
-	exit_critical_section();
+    THREAD_UNLOCK(state);
 	return ret;
 }