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irq: inline restore_critical_section

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reason:
In the SMP, when a context switch occurs, restore_critical_section is executed.
In order to reduce the time taken for context switching,
we inline the restore_critical_section function.
Given that restore_critical_section is small in size
and is called from only one location, inlining it does not increase the size of the image.

Signed-off-by: hujun5 <hujun5@xiaomi.com>
This commit is contained in:
hujun5
2023-12-20 20:09:51 +08:00
committed by Xiang Xiao
parent c9eef2d697
commit 8439296a50
3 changed files with 23 additions and 44 deletions
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sched/irq/irq_csection.c
-43
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@@ -644,47 +644,4 @@ inline_function void leave_critical_section_nonirq(irqstate_t flags)
up_irq_restore(flags);
}
#endif
/****************************************************************************
* Name: restore_critical_section
*
* Description:
* Restore the critical_section
*
* Input Parameters:
* None
*
* Returned Value:
* None
*
****************************************************************************/
#ifdef CONFIG_SMP
void restore_critical_section(void)
{
/* NOTE: The following logic for adjusting global IRQ controls were
* derived from nxsched_add_readytorun() and sched_removedreadytorun()
* Here, we only handles clearing logic to defer unlocking IRQ lock
* followed by context switching.
*/
FAR struct tcb_s *tcb;
int me = this_cpu();
/* Adjust global IRQ controls. If irqcount is greater than zero,
* then this task/this CPU holds the IRQ lock
*/
tcb = current_task(me);
DEBUGASSERT(g_cpu_nestcount[me] <= 0);
if (tcb->irqcount <= 0)
{
if ((g_cpu_irqset & (1 << me)) != 0)
{
cpu_irqlock_clear();
}
}
}
#endif /* CONFIG_SMP */
#endif /* CONFIG_IRQCOUNT */