1 files changed, 34 insertions, 0 deletions

diff --git a/include/asm-s390/timex.h b/include/asm-s390/timex.h
new file mode 100644
index 000000000000..4848057dafe4
--- /dev/null
+++ b/include/asm-s390/timex.h
@@ -0,0 +1,34 @@
+/*
+ *  include/asm-s390/timex.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *
+ *  Derived from "include/asm-i386/timex.h"
+ *    Copyright (C) 1992, Linus Torvalds
+ */
+
+#ifndef _ASM_S390_TIMEX_H
+#define _ASM_S390_TIMEX_H
+
+#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
+
+typedef unsigned long long cycles_t;
+
+static inline cycles_t get_cycles(void)
+{
+        cycles_t cycles;
+
+        __asm__("stck 0(%1)" : "=m" (cycles) : "a" (&cycles) : "cc");
+        return cycles >> 2;
+}
+
+static inline unsigned long long get_clock (void)
+{
+        unsigned long long clk;
+
+        __asm__("stck 0(%1)" : "=m" (clk) : "a" (&clk) : "cc");
+        return clk;
+}
+
+#endif