2 files changed, 48 insertions, 0 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 85e9f6c28b8..b13eeab289a 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -117,6 +117,7 @@ config PPC
 	select HAVE_IOREMAP_PROT
 	select HAVE_EFFICIENT_UNALIGNED_ACCESS
 	select HAVE_KPROBES
+	select HAVE_TRACE_CLOCK
 	select HAVE_ARCH_KGDB
 	select HAVE_KRETPROBES
 	select HAVE_ARCH_TRACEHOOK
diff --git a/arch/powerpc/include/asm/trace-clock.h b/arch/powerpc/include/asm/trace-clock.h
new file mode 100644
index 00000000000..9aee5723b9f
--- /dev/null
+++ b/arch/powerpc/include/asm/trace-clock.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2005,2008 Mathieu Desnoyers
+ *
+ * Trace clock PowerPC definitions.
+ *
+ * Use get_tb() directly to insure reading a 64-bits value on powerpc 32.
+ */
+
+#ifndef _ASM_TRACE_CLOCK_H
+#define _ASM_TRACE_CLOCK_H
+
+#include <linux/timex.h>
+#include <linux/time.h>
+#include <asm/processor.h>
+
+static inline u32 trace_clock_read32(void)
+{
+	return get_tbl();
+}
+
+static inline u64 trace_clock_read64(void)
+{
+	return get_tb();
+}
+
+static inline unsigned int trace_clock_frequency(void)
+{
+	return get_cycles_rate();
+}
+
+static inline u32 trace_clock_freq_scale(void)
+{
+	return 1;
+}
+
+static inline void get_trace_clock(void)
+{
+}
+
+static inline void put_trace_clock(void)
+{
+}
+
+static inline void set_trace_clock_is_sync(int state)
+{
+}
+#endif /* _ASM_TRACE_CLOCK_H */