v4.19.13 snapshot.
diff --git a/arch/powerpc/include/asm/hardirq.h b/arch/powerpc/include/asm/hardirq.h
new file mode 100644
index 0000000..f1e9067
--- /dev/null
+++ b/arch/powerpc/include/asm/hardirq.h
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_POWERPC_HARDIRQ_H
+#define _ASM_POWERPC_HARDIRQ_H
+
+#include <linux/threads.h>
+#include <linux/irq.h>
+
+typedef struct {
+ unsigned int __softirq_pending;
+ unsigned int timer_irqs_event;
+ unsigned int broadcast_irqs_event;
+ unsigned int timer_irqs_others;
+ unsigned int pmu_irqs;
+ unsigned int mce_exceptions;
+ unsigned int spurious_irqs;
+ unsigned int hmi_exceptions;
+ unsigned int sreset_irqs;
+#ifdef CONFIG_PPC_WATCHDOG
+ unsigned int soft_nmi_irqs;
+#endif
+#ifdef CONFIG_PPC_DOORBELL
+ unsigned int doorbell_irqs;
+#endif
+} ____cacheline_aligned irq_cpustat_t;
+
+DECLARE_PER_CPU_SHARED_ALIGNED(irq_cpustat_t, irq_stat);
+
+#define __ARCH_IRQ_STAT
+#define __ARCH_IRQ_EXIT_IRQS_DISABLED
+
+static inline void ack_bad_irq(unsigned int irq)
+{
+ printk(KERN_CRIT "unexpected IRQ trap at vector %02x\n", irq);
+}
+
+extern u64 arch_irq_stat_cpu(unsigned int cpu);
+#define arch_irq_stat_cpu arch_irq_stat_cpu
+
+#endif /* _ASM_POWERPC_HARDIRQ_H */