Merge branch 'linus' into x86/uv

1 files changed, 31 insertions, 0 deletions

diff --git a/arch/cris/include/arch-v32/arch/timex.h b/arch/cris/include/arch-v32/arch/timex.h
new file mode 100644
index 00000000000..2591d3c5ed9
--- /dev/null
+++ b/arch/cris/include/arch-v32/arch/timex.h
@@ -0,0 +1,31 @@
+#ifndef _ASM_CRIS_ARCH_TIMEX_H
+#define _ASM_CRIS_ARCH_TIMEX_H
+
+#include <hwregs/reg_map.h>
+#include <hwregs/reg_rdwr.h>
+#include <hwregs/timer_defs.h>
+
+/*
+ * The clock runs at 100MHz, we divide it by 1000000. If you change anything
+ * here you must check time.c as well.
+ */
+
+#define CLOCK_TICK_RATE 100000000	/* Underlying frequency of the HZ timer */
+
+/* The timer0 values gives 10 ns resolution but interrupts at HZ. */
+#define TIMER0_FREQ (CLOCK_TICK_RATE)
+#define TIMER0_DIV (TIMER0_FREQ/(HZ))
+
+/* Convert the value in step of 10 ns to 1us without overflow: */
+#define GET_JIFFIES_USEC() \
+	((TIMER0_DIV - REG_RD(timer, regi_timer0, r_tmr0_data)) / 100)
+
+extern unsigned long get_ns_in_jiffie(void);
+
+static inline unsigned long get_us_in_jiffie_highres(void)
+{
+	return get_ns_in_jiffie() / 1000;
+}
+
+#endif
+