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