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-rw-r--r--arch/powerpc/include/asm/hw_irq.h2
-rw-r--r--arch/powerpc/kernel/irq.c15
2 files changed, 17 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/hw_irq.h b/arch/powerpc/include/asm/hw_irq.h
index b59ac27a6b7d..c7d82ff62a33 100644
--- a/arch/powerpc/include/asm/hw_irq.h
+++ b/arch/powerpc/include/asm/hw_irq.h
@@ -130,6 +130,8 @@ static inline bool arch_irq_disabled_regs(struct pt_regs *regs)
extern bool prep_irq_for_idle(void);
+extern void force_external_irq_replay(void);
+
#else /* CONFIG_PPC64 */
#define SET_MSR_EE(x) mtmsr(x)
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 58217aec30ea..ac910d9982df 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -342,6 +342,21 @@ bool prep_irq_for_idle(void)
return true;
}
+/*
+ * Force a replay of the external interrupt handler on this CPU.
+ */
+void force_external_irq_replay(void)
+{
+ /*
+ * This must only be called with interrupts soft-disabled,
+ * the replay will happen when re-enabling.
+ */
+ WARN_ON(!arch_irqs_disabled());
+
+ /* Indicate in the PACA that we have an interrupt to replay */
+ local_paca->irq_happened |= PACA_IRQ_EE;
+}
+
#endif /* CONFIG_PPC64 */
int arch_show_interrupts(struct seq_file *p, int prec)
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