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0869b6fd20
Handle Hypervisor Maintenance Interrupt (HMI) in Linux. This patch implements basic infrastructure to handle HMI in Linux host. The design is to invoke opal handle hmi in real mode for recovery and set irq_pending when we hit HMI. During check_irq_replay pull opal hmi event and print hmi info on console. Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
35 lines
850 B
C
35 lines
850 B
C
#ifndef _ASM_POWERPC_HARDIRQ_H
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#define _ASM_POWERPC_HARDIRQ_H
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#include <linux/threads.h>
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#include <linux/irq.h>
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typedef struct {
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unsigned int __softirq_pending;
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unsigned int timer_irqs_event;
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unsigned int timer_irqs_others;
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unsigned int pmu_irqs;
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unsigned int mce_exceptions;
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unsigned int spurious_irqs;
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unsigned int hmi_exceptions;
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#ifdef CONFIG_PPC_DOORBELL
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unsigned int doorbell_irqs;
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#endif
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} ____cacheline_aligned irq_cpustat_t;
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DECLARE_PER_CPU_SHARED_ALIGNED(irq_cpustat_t, irq_stat);
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#define __ARCH_IRQ_STAT
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#define local_softirq_pending() __get_cpu_var(irq_stat).__softirq_pending
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static inline void ack_bad_irq(unsigned int irq)
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{
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printk(KERN_CRIT "unexpected IRQ trap at vector %02x\n", irq);
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}
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extern u64 arch_irq_stat_cpu(unsigned int cpu);
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#define arch_irq_stat_cpu arch_irq_stat_cpu
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#endif /* _ASM_POWERPC_HARDIRQ_H */
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