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-rw-r--r--arch/x86/include/asm/clocksource.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/x86/include/asm/clocksource.h b/arch/x86/include/asm/clocksource.h
index a5df33f614c9..3882c65dc19b 100644
--- a/arch/x86/include/asm/clocksource.h
+++ b/arch/x86/include/asm/clocksource.h
@@ -7,8 +7,12 @@
#define __ARCH_HAS_CLOCKSOURCE_DATA
+#define VCLOCK_NONE 0 /* No vDSO clock available. */
+#define VCLOCK_TSC 1 /* vDSO should use vread_tsc. */
+#define VCLOCK_HPET 2 /* vDSO should use vread_hpet. */
+
struct arch_clocksource_data {
- cycle_t (*vread)(void);
+ int vclock_mode;
};
#endif /* CONFIG_X86_64 */

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