linux/include/asm-arm/hardirq.h
Russell King 37ee16ae93 [ARM SMP] Add core ARM support for local timers
Add infrastructure for supporting per-cpu local timers to update
the profiling information and update system time accounting.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-11-08 19:08:05 +00:00

34 lines
715 B
C

#ifndef __ASM_HARDIRQ_H
#define __ASM_HARDIRQ_H
#include <linux/config.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 > 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 */