You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
52 lines
1.1 KiB
52 lines
1.1 KiB
/* |
|
* Copyright (c) 2018,2024 Intel Corporation |
|
* |
|
* SPDX-License-Identifier: Apache-2.0 |
|
*/ |
|
#include <kernel_internal.h> |
|
#include <zephyr/spinlock.h> |
|
#include <zephyr/llext/symbol.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; |
|
} |
|
EXPORT_SYMBOL(z_spin_lock_valid); |
|
|
|
bool z_spin_unlock_valid(struct k_spinlock *l) |
|
{ |
|
uintptr_t tcpu = l->thread_cpu; |
|
|
|
l->thread_cpu = 0; |
|
|
|
if (arch_is_in_isr() && _current->base.thread_state & _THREAD_DUMMY) { |
|
/* Edge case where an ISR aborted _current */ |
|
return true; |
|
} |
|
if (tcpu != (_current_cpu->id | (uintptr_t)_current)) { |
|
return false; |
|
} |
|
return true; |
|
} |
|
EXPORT_SYMBOL(z_spin_unlock_valid); |
|
|
|
void z_spin_lock_set_owner(struct k_spinlock *l) |
|
{ |
|
l->thread_cpu = _current_cpu->id | (uintptr_t)_current; |
|
} |
|
EXPORT_SYMBOL(z_spin_lock_set_owner); |
|
|
|
#ifdef CONFIG_KERNEL_COHERENCE |
|
bool z_spin_lock_mem_coherent(struct k_spinlock *l) |
|
{ |
|
return arch_mem_coherent((void *)l); |
|
} |
|
EXPORT_SYMBOL(z_spin_lock_mem_coherent); |
|
#endif /* CONFIG_KERNEL_COHERENCE */
|
|
|