30 lines
817 B
C
30 lines
817 B
C
#ifndef _ALPHA_HARDIRQ_H
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#define _ALPHA_HARDIRQ_H
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#include <linux/config.h>
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#include <linux/threads.h>
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#include <linux/cache.h>
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/* entry.S is sensitive to the offsets of these fields */
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typedef struct {
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unsigned long __softirq_pending;
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} ____cacheline_aligned irq_cpustat_t;
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#include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */
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#define HARDIRQ_BITS 12
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/*
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* The hardirq mask has to be large enough to have
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* space for potentially nestable IRQ sources in the system
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* to nest on a single CPU. On Alpha, interrupts are masked at the CPU
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* by IPL as well as at the system level. We only have 8 IPLs (UNIX PALcode)
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* so we really only have 8 nestable IRQs, but allow some overhead
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*/
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#if (1 << HARDIRQ_BITS) < 16
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#error HARDIRQ_BITS is too low!
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#endif
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#endif /* _ALPHA_HARDIRQ_H */
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