1 files changed, 51 insertions, 0 deletions

diff --git a/arch/s390/include/asm/hardirq.h b/arch/s390/include/asm/hardirq.h
new file mode 100644
index 000000000000..89ec7056da28
--- /dev/null
+++ b/arch/s390/include/asm/hardirq.h
@@ -0,0 +1,51 @@
+/*
+ *  include/asm-s390/hardirq.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
+ *               Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com)
+ *
+ *  Derived from "include/asm-i386/hardirq.h"
+ */
+
+#ifndef __ASM_HARDIRQ_H
+#define __ASM_HARDIRQ_H
+
+#include <linux/threads.h>
+#include <linux/sched.h>
+#include <linux/cache.h>
+#include <linux/interrupt.h>
+#include <asm/lowcore.h>
+
+/* irq_cpustat_t is unused currently, but could be converted
+ * into a percpu variable instead of storing softirq_pending
+ * on the lowcore */
+typedef struct {
+        unsigned int __softirq_pending;
+} irq_cpustat_t;
+
+#define local_softirq_pending() (S390_lowcore.softirq_pending)
+
+#define __ARCH_IRQ_STAT
+#define __ARCH_HAS_DO_SOFTIRQ
+
+#define HARDIRQ_BITS    8
+
+void clock_comparator_work(void);
+
+static inline unsigned long long local_tick_disable(void)
+{
+        unsigned long long old;
+
+        old = S390_lowcore.clock_comparator;
+        S390_lowcore.clock_comparator = -1ULL;
+        return old;
+}
+
+static inline void local_tick_enable(unsigned long long comp)
+{
+        S390_lowcore.clock_comparator = comp;
+}
+
+#endif /* __ASM_HARDIRQ_H */