[PATCH] x86: Use RDTSCP for synchronous get_cycles if possible

[powerpc.git] / include / asm-i386 / i8253.h

diff --git a/include/asm-i386/i8253.h b/include/asm-i386/i8253.h
index 015d8df..6cb0dd4 100644 (file)
--- a/include/asm-i386/i8253.h
+++ b/include/asm-i386/i8253.h
@@ -1,6 +1,21 @@
 #ifndef __ASM_I8253_H__
 #define __ASM_I8253_H__
 
+#include <linux/clockchips.h>
+
 extern spinlock_t i8253_lock;
 
+extern struct clock_event_device *global_clock_event;
+
+/**
+ * pit_interrupt_hook - hook into timer tick
+ * @regs:      standard registers from interrupt
+ *
+ * Call the global clock event handler.
+ **/
+static inline void pit_interrupt_hook(void)
+{
+       global_clock_event->event_handler(global_clock_event);
+}
+
 #endif /* __ASM_I8253_H__ */