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#include "local.h"
#include <linux/kernel.h>
/* IRQ lock reference counter */
static __thread atomic_t _refcnt = ATOMIC_INIT(0);
/* Check whether IRQs are currently disabled.
*
* This is the case, if flags is greater than 0.
*/
int raw_irqs_disabled_flags(unsigned long flags)
{
return ((int)flags > 0);
}
/* Store the current flags state.
*
* This is done by returning the current refcnt.
*/
unsigned long __raw_local_save_flags(void)
{
return (unsigned long)atomic_read(&_refcnt);
}
/* Restore IRQ state. */
void raw_local_irq_restore(unsigned long flags)
{
atomic_set(&_refcnt, flags);
}
/* Disable IRQs by grabbing the IRQ lock. */
void raw_local_irq_disable(void)
{
atomic_inc(&_refcnt);
}
/* Unlock the IRQ lock until refcnt is 0. */
void raw_local_irq_enable(void)
{
atomic_set(&_refcnt, 0);
}
void raw_safe_halt(void)
{
WARN_UNIMPL;
}
void halt(void)
{
WARN_UNIMPL;
}
/* These functions are empty for DDE. Every DDE thread is a separate
* "virtual" CPU. Therefore there is no need to en/disable bottom halves.
*/
void local_bh_disable(void) {}
void __local_bh_enable(void) {}
void _local_bh_enable(void) {}
void local_bh_enable(void) {}
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