summaryrefslogtreecommitdiffstats
path: root/arch/arm/include/asm/hardirq.h
blob: 6d7485aff9558dcfba7de1f1cfb4a648778a6c6b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
#ifndef __ASM_HARDIRQ_H
#define __ASM_HARDIRQ_H

#include <linux/cache.h>
#include <linux/threads.h>
#include <asm/irq.h>

typedef struct {
	unsigned int __softirq_pending;
	unsigned int local_timer_irqs;
} ____cacheline_aligned irq_cpustat_t;

#include <linux/irq_cpustat.h>	/* Standard mappings for irq_cpustat_t above */

#if NR_IRQS > 512
#define HARDIRQ_BITS	10
#elif NR_IRQS > 256
#define HARDIRQ_BITS	9
#else
#define HARDIRQ_BITS	8
#endif

/*
 * The hardirq mask has to be large enough to have space
 * for potentially all IRQ sources in the system nesting
 * on a single CPU:
 */
#if (1 << HARDIRQ_BITS) < NR_IRQS
# error HARDIRQ_BITS is too low!
#endif

#define __ARCH_IRQ_EXIT_IRQS_DISABLED	1

#endif /* __ASM_HARDIRQ_H */
OpenPOWER on IntegriCloud