swh:1:snp:77163734605b0ec556b01d897b7bb4a7e30d46b6
Raw File
Tip revision: dbeeb816e805091e7cfc03baf36dc40b4adb2bbd authored by Linus Torvalds on 06 November 2007, 21:57:46 UTC
Linux 2.6.24-rc2
Tip revision: dbeeb81
hardirq.h
#ifndef _ALPHA_HARDIRQ_H
#define _ALPHA_HARDIRQ_H

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


/* entry.S is sensitive to the offsets of these fields */
typedef struct {
	unsigned long __softirq_pending;
} ____cacheline_aligned irq_cpustat_t;

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

void ack_bad_irq(unsigned int irq);

#define HARDIRQ_BITS	12

/*
 * The hardirq mask has to be large enough to have
 * space for potentially nestable IRQ sources in the system
 * to nest on a single CPU. On Alpha, interrupts are masked at the CPU
 * by IPL as well as at the system level. We only have 8 IPLs (UNIX PALcode)
 * so we really only have 8 nestable IRQs, but allow some overhead
 */
#if (1 << HARDIRQ_BITS) < 16
#error HARDIRQ_BITS is too low!
#endif

#endif /* _ALPHA_HARDIRQ_H */
back to top