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// SPDX-License-Identifier: BSD-2-Clause
/*
* Copyright (c) 2016, Linaro Limited
*/
#include <assert.h>
#include <compiler.h>
#include <kernel/spinlock.h>
void spinlock_count_incr(void)
{
struct thread_core_local *l = thread_get_core_local();
l->locked_count++;
assert(l->locked_count);
}
void spinlock_count_decr(void)
{
struct thread_core_local *l = thread_get_core_local();
assert(l->locked_count);
l->locked_count--;
}
bool __nostackcheck have_spinlock(void)
{
struct thread_core_local *l;
if (!thread_foreign_intr_disabled()) {
/*
* Normally we can't be holding a spinlock since doing so would
* imply foreign interrupts are disabled (or the spinlock
* logic is flawed).
*/
return false;
}
l = thread_get_core_local();
return !!l->locked_count;
}
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