summaryrefslogtreecommitdiffstats
path: root/include/asm-s390/timex.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-s390/timex.h')
-rw-r--r--include/asm-s390/timex.h34
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 0000000..4848057
--- /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
OpenPOWER on IntegriCloud