/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) Equator Technologies
 */

#ifndef _ASM_BSP_HARDIRQ_H_
#define _ASM_BSP_HARDIRQ_H_

#include <linux/tasks.h>

extern unsigned int local_irq_count[NR_CPUS];
extern unsigned int local_bh_count [NR_CPUS];

/*
 * Are we in an interrupt context? Either doing bottom half
 * or hardware interrupt processing?
 */
#define in_interrupt()	\
	(local_irq_count[smp_processor_id()] +	\
	 local_bh_count [smp_processor_id()] != 0)

#ifndef __SMP__

#define hardirq_trylock(cpu)	(local_irq_count[cpu] == 0)
#define hardirq_endlock(cpu)	do { } while (0)

#define hardirq_enter(cpu)	(local_irq_count[cpu]++)
#define hardirq_exit(cpu)	(local_irq_count[cpu]--)

#define synchronize_irq()	barrier();

#else

#error No habla MAP SMP

#endif	/* __SMP__ */
#endif	/* _ASM_BSP_HARDIRQ_H_ */
