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Diffstat (limited to 'kernel/arch/x86/include/asm/clocksource.h')
-rw-r--r--kernel/arch/x86/include/asm/clocksource.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/kernel/arch/x86/include/asm/clocksource.h b/kernel/arch/x86/include/asm/clocksource.h
new file mode 100644
index 000000000..eda81dc0f
--- /dev/null
+++ b/kernel/arch/x86/include/asm/clocksource.h
@@ -0,0 +1,15 @@
+/* x86-specific clocksource additions */
+
+#ifndef _ASM_X86_CLOCKSOURCE_H
+#define _ASM_X86_CLOCKSOURCE_H
+
+#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. */
+#define VCLOCK_PVCLOCK 3 /* vDSO should use vread_pvclock. */
+
+struct arch_clocksource_data {
+ int vclock_mode;
+};
+
+#endif /* _ASM_X86_CLOCKSOURCE_H */