#ifndef __ASM_HARDIRQ_H #define __ASM_HARDIRQ_H #include #include #include #include #include #define __ARCH_IRQ_STAT 1 #define local_softirq_pending() read_pda(__softirq_pending) #define __ARCH_SET_SOFTIRQ_PENDING 1 #define set_softirq_pending(x) write_pda(__softirq_pending, (x)) #define or_softirq_pending(x) or_pda(__softirq_pending, (x)) /* * '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 */