38 lines
1.1 KiB
C
38 lines
1.1 KiB
C
#ifndef __ASM_HARDIRQ_H
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#define __ASM_HARDIRQ_H
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#include <linux/config.h>
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#include <linux/threads.h>
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#include <linux/irq.h>
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#include <asm/pda.h>
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#include <asm/apic.h>
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#define __ARCH_IRQ_STAT 1
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/* Generate a lvalue for a pda member. Should fix softirq.c instead to use
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special access macros. This would generate better code. */
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#define __IRQ_STAT(cpu,member) (read_pda(me)->member)
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#include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */
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/*
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* 'what should we do if we get a hw irq event on an illegal vector'.
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* each architecture has to answer this themselves.
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*/
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static inline void ack_bad_irq(unsigned int irq)
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{
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printk("unexpected IRQ trap at vector %02x\n", irq);
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#ifdef CONFIG_X86_LOCAL_APIC
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/*
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* Currently unexpected vectors happen only on SMP and APIC.
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* We _must_ ack these because every local APIC has only N
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* irq slots per priority level, and a 'hanging, unacked' IRQ
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* holds up an irq slot - in excessive cases (when multiple
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* unexpected vectors occur) that might lock up the APIC
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* completely.
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*/
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ack_APIC_irq();
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#endif
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}
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#endif /* __ASM_HARDIRQ_H */
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