41 lines
795 B
C
41 lines
795 B
C
/*
|
|
* Copyright (c) 2018,2024 Intel Corporation
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
#include <zephyr/kernel.h>
|
|
#include <zephyr/spinlock.h>
|
|
|
|
bool z_spin_lock_valid(struct k_spinlock *l)
|
|
{
|
|
uintptr_t thread_cpu = l->thread_cpu;
|
|
|
|
if (thread_cpu != 0U) {
|
|
if ((thread_cpu & 3U) == _current_cpu->id) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool z_spin_unlock_valid(struct k_spinlock *l)
|
|
{
|
|
if (l->thread_cpu != (_current_cpu->id | (uintptr_t)_current)) {
|
|
return false;
|
|
}
|
|
l->thread_cpu = 0;
|
|
return true;
|
|
}
|
|
|
|
void z_spin_lock_set_owner(struct k_spinlock *l)
|
|
{
|
|
l->thread_cpu = _current_cpu->id | (uintptr_t)_current;
|
|
}
|
|
|
|
#ifdef CONFIG_KERNEL_COHERENCE
|
|
bool z_spin_lock_mem_coherent(struct k_spinlock *l)
|
|
{
|
|
return arch_mem_coherent((void *)l);
|
|
}
|
|
#endif /* CONFIG_KERNEL_COHERENCE */
|