File: /usr/src/linux/include/asm-m68k/hardirq.h

1     #ifndef __M68K_HARDIRQ_H
2     #define __M68K_HARDIRQ_H
3     
4     #include <linux/threads.h>
5     #include <linux/cache.h>
6     
7     /* entry.S is sensitive to the offsets of these fields */
8     typedef struct {
9     	unsigned int __softirq_active;
10     	unsigned int __softirq_mask;
11     	unsigned int __local_irq_count;
12     	unsigned int __local_bh_count;
13     	unsigned int __syscall_count;
14     } ____cacheline_aligned irq_cpustat_t;
15     
16     #include <linux/irq_cpustat.h>	/* Standard mappings for irq_cpustat_t above */
17     
18     #define in_interrupt() (local_irq_count(smp_processor_id()) + local_bh_count(smp_processor_id()) != 0)
19     
20     #define in_irq() (local_irq_count(smp_processor_id()) != 0)
21     
22     #define hardirq_trylock(cpu)	(local_irq_count(cpu) == 0)
23     #define hardirq_endlock(cpu)	do { } while (0)
24     
25     #define irq_enter(cpu)		(local_irq_count(cpu)++)
26     #define irq_exit(cpu)		(local_irq_count(cpu)--)
27     
28     #define synchronize_irq()	barrier()
29     
30     #endif
31