46aa6717ff
Mostly a revert of commit b1def7145f ("arch: deprecate `_current`").
This commit was part of PR #80716 whose initial purpose was about providing
an architecture specific optimization for _current. The actual deprecation
was sneaked in later on without proper discussion.
The Zephyr core always used _current before and that was fine. It is quite
prevalent as well and the alternative is proving rather verbose.
Furthermore, as a concept, the "current thread" is not something that is
necessarily architecture specific. Therefore the primary abstraction
should not carry the arch_ prefix.
Hence this revert.
Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
47 lines
961 B
C
47 lines
961 B
C
/*
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* Copyright (c) 2018,2024 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <kernel_internal.h>
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#include <zephyr/spinlock.h>
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bool z_spin_lock_valid(struct k_spinlock *l)
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{
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uintptr_t thread_cpu = l->thread_cpu;
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if (thread_cpu != 0U) {
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if ((thread_cpu & 3U) == _current_cpu->id) {
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return false;
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}
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}
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return true;
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}
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bool z_spin_unlock_valid(struct k_spinlock *l)
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{
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uintptr_t tcpu = l->thread_cpu;
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l->thread_cpu = 0;
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if (arch_is_in_isr() && _current->base.thread_state & _THREAD_DUMMY) {
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/* Edge case where an ISR aborted _current */
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return true;
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}
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if (tcpu != (_current_cpu->id | (uintptr_t)_current)) {
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return false;
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}
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return true;
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}
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void z_spin_lock_set_owner(struct k_spinlock *l)
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{
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l->thread_cpu = _current_cpu->id | (uintptr_t)_current;
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}
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#ifdef CONFIG_KERNEL_COHERENCE
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bool z_spin_lock_mem_coherent(struct k_spinlock *l)
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{
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return arch_mem_coherent((void *)l);
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}
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#endif /* CONFIG_KERNEL_COHERENCE */
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