1 files changed, 9 insertions, 7 deletions

diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h
index d4646b48dc4a..139c4db55f17 100644
--- a/include/linux/clocksource.h
+++ b/include/linux/clocksource.h
@@ -22,6 +22,10 @@
 typedef u64 cycle_t;
 struct clocksource;
 
+#ifdef CONFIG_ARCH_CLOCKSOURCE_DATA
+#include <asm/clocksource.h>
+#endif
+
 /**
  * struct cyclecounter - hardware abstraction for a free running counter
  *      Provides completely state-free accessors to the underlying hardware.
@@ -153,7 +157,7 @@ extern u64 timecounter_cyc2time(struct timecounter *tc,
  * @shift:              cycle to nanosecond divisor (power of two)
  * @max_idle_ns:        max idle time permitted by the clocksource (nsecs)
  * @flags:              flags describing special properties
- * @vread:              vsyscall based read
+ * @archdata:           arch-specific data
  * @suspend:            suspend function for the clocksource, if necessary
  * @resume:             resume function for the clocksource, if necessary
  */
@@ -169,16 +173,13 @@ struct clocksource {
         u32 shift;
         u64 max_idle_ns;
 
-#ifdef CONFIG_IA64
-        void *fsys_mmio;        /* used by fsyscall asm code */
-#define CLKSRC_FSYS_MMIO_SET(mmio, addr)      ((mmio) = (addr))
-#else
-#define CLKSRC_FSYS_MMIO_SET(mmio, addr)      do { } while (0)
+#ifdef CONFIG_ARCH_CLOCKSOURCE_DATA
+        struct arch_clocksource_data archdata;
 #endif
+
         const char *name;
         struct list_head list;
         int rating;
-        cycle_t (*vread)(void);
         int (*enable)(struct clocksource *cs);
         void (*disable)(struct clocksource *cs);
         unsigned long flags;
@@ -188,6 +189,7 @@ struct clocksource {
 #ifdef CONFIG_CLOCKSOURCE_WATCHDOG
         /* Watchdog related data, used by the framework */
         struct list_head wd_list;
+        cycle_t cs_last;
         cycle_t wd_last;
 #endif
 } ____cacheline_aligned;