2 files changed, 22 insertions, 0 deletions

diff --git a/include/asm-arm/mach/time.h b/include/asm-arm/mach/time.h
index 5cf4fd659fd5..047980ad18d1 100644
--- a/include/asm-arm/mach/time.h
+++ b/include/asm-arm/mach/time.h
@@ -39,8 +39,29 @@ struct sys_timer {
         void                    (*suspend)(void);
         void                    (*resume)(void);
         unsigned long           (*offset)(void);
+
+#ifdef CONFIG_NO_IDLE_HZ
+        struct dyn_tick_timer   *dyn_tick;
+#endif
+};
+
+#ifdef CONFIG_NO_IDLE_HZ
+
+#define DYN_TICK_SKIPPING       (1 << 2)
+#define DYN_TICK_ENABLED        (1 << 1)
+#define DYN_TICK_SUITABLE       (1 << 0)
+
+struct dyn_tick_timer {
+        unsigned int    state;                  /* Current state */
+        int             (*enable)(void);        /* Enables dynamic tick */
+        int             (*disable)(void);       /* Disables dynamic tick */
+        void            (*reprogram)(unsigned long); /* Reprograms the timer */
+        int             (*handler)(int, void *, struct pt_regs *);
 };
 
+void timer_dyn_reprogram(void);
+#endif
+
 extern struct sys_timer *system_timer;
 extern void timer_tick(struct pt_regs *);
 
diff --git a/include/asm-arm/signal.h b/include/asm-arm/signal.h
index 46e69ae395af..760f6e65af05 100644
--- a/include/asm-arm/signal.h
+++ b/include/asm-arm/signal.h
@@ -114,6 +114,7 @@ typedef unsigned long sigset_t;
 #define SIGSTKSZ        8192
 
 #ifdef __KERNEL__
+#define SA_TIMER                0x40000000
 #define SA_IRQNOMASK            0x08000000
 #endif