Revision 060e352236ece3325a684c72817fbacdac597574 authored by Jeff Dike on 20 May 2005, 20:59:08 UTC, committed by Linus Torvalds on 20 May 2005, 22:48:17 UTC
This patch cleans up the delay implementations a bit, makes the loops unoptimizable, and exports __udelay and __const_udelay. Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: <viro@parcelfarce.linux.theplanet.co.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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hardirq.h
#ifndef _ALPHA_HARDIRQ_H
#define _ALPHA_HARDIRQ_H
#include <linux/config.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 */
#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 */
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