mirror of
https://github.com/torvalds/linux.git
synced 2024-11-01 09:41:44 +00:00
37ee16ae93
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>
34 lines
715 B
C
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 */
|