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-rw-r--r--arch/powerpc/kernel/irq.c17
1 files changed, 11 insertions, 6 deletions
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 08887cf2b20e..3c05c311e35e 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -67,6 +67,7 @@
#include <asm/smp.h>
#include <asm/debug.h>
#include <asm/livepatch.h>
+#include <asm/asm-prototypes.h>
#ifdef CONFIG_PPC64
#include <asm/paca.h>
@@ -156,6 +157,15 @@ notrace unsigned int __check_irq_replay(void)
}
/*
+ * Check if an hypervisor Maintenance interrupt happened.
+ * This is a higher priority interrupt than the others, so
+ * replay it first.
+ */
+ local_paca->irq_happened &= ~PACA_IRQ_HMI;
+ if (happened & PACA_IRQ_HMI)
+ return 0xe60;
+
+ /*
* We may have missed a decrementer interrupt. We check the
* decrementer itself rather than the paca irq_happened field
* in case we also had a rollover while hard disabled
@@ -190,11 +200,6 @@ notrace unsigned int __check_irq_replay(void)
}
#endif /* CONFIG_PPC_BOOK3E */
- /* Check if an hypervisor Maintenance interrupt happened */
- local_paca->irq_happened &= ~PACA_IRQ_HMI;
- if (happened & PACA_IRQ_HMI)
- return 0xe60;
-
/* There should be nothing left ! */
BUG_ON(local_paca->irq_happened != 0);
@@ -514,7 +519,7 @@ void __do_irq(struct pt_regs *regs)
may_hard_irq_enable();
/* And finally process it */
- if (unlikely(irq == NO_IRQ))
+ if (unlikely(!irq))
__this_cpu_inc(irq_stat.spurious_irqs);
else
generic_handle_irq(irq);