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Diffstat (limited to 'include/linux/clocksource.h')
-rw-r--r--include/linux/clocksource.h12
1 files changed, 11 insertions, 1 deletions
diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h
index 2c4574b517d2..6d5ed1b4d24d 100644
--- a/include/linux/clocksource.h
+++ b/include/linux/clocksource.h
@@ -23,10 +23,19 @@
struct clocksource;
struct module;
-#ifdef CONFIG_ARCH_CLOCKSOURCE_DATA
+#if defined(CONFIG_ARCH_CLOCKSOURCE_DATA) || \
+ defined(CONFIG_GENERIC_VDSO_CLOCK_MODE)
#include <asm/clocksource.h>
#endif
+enum vdso_clock_mode {
+ VDSO_CLOCKMODE_NONE,
+#ifdef CONFIG_GENERIC_VDSO_CLOCK_MODE
+ VDSO_ARCH_CLOCKMODES,
+#endif
+ VDSO_CLOCKMODE_MAX,
+};
+
/**
* struct clocksource - hardware abstraction for a free running counter
* Provides mostly state-free accessors to the underlying hardware.
@@ -97,6 +106,7 @@ struct clocksource {
const char *name;
struct list_head list;
int rating;
+ enum vdso_clock_mode vdso_clock_mode;
unsigned long flags;
int (*enable)(struct clocksource *cs);