1 files changed, 31 insertions, 0 deletions

diff --git a/include/asm-alpha/timex.h b/include/asm-alpha/timex.h
new file mode 100644
index 000000000000..afa0c45e3e98
--- /dev/null
+++ b/include/asm-alpha/timex.h
@@ -0,0 +1,31 @@
+/*
+ * linux/include/asm-alpha/timex.h
+ *
+ * ALPHA architecture timex specifications
+ */
+#ifndef _ASMALPHA_TIMEX_H
+#define _ASMALPHA_TIMEX_H
+
+/* With only one or two oddballs, we use the RTC as the ticker, selecting
+   the 32.768kHz reference clock, which nicely divides down to our HZ.  */
+#define CLOCK_TICK_RATE 32768
+
+/*
+ * Standard way to access the cycle counter.
+ * Currently only used on SMP for scheduling.
+ *
+ * Only the low 32 bits are available as a continuously counting entity. 
+ * But this only means we'll force a reschedule every 8 seconds or so,
+ * which isn't an evil thing.
+ */
+
+typedef unsigned int cycles_t;
+
+static inline cycles_t get_cycles (void)
+{
+        cycles_t ret;
+        __asm__ __volatile__ ("rpcc %0" : "=r"(ret));
+        return ret;
+}
+
+#endif