diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 4ea6d8b..8206fc1 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -39,6 +39,7 @@
 #include <linux/moduleparam.h>
 #include <linux/sched.h>	/* need_resched() */
 #include <linux/latency.h>
+#include <linux/clockchips.h>
 
 /*
  * Include the apic definitions for x86 to have the APIC timer related defines
@@ -274,12 +275,40 @@
 
 static void acpi_propagate_timer_broadcast(struct acpi_processor *pr)
 {
+#ifdef CONFIG_GENERIC_CLOCKEVENTS
+	unsigned long reason;
+
+	reason = pr->power.timer_broadcast_on_state < INT_MAX ?
+		CLOCK_EVT_NOTIFY_BROADCAST_ON : CLOCK_EVT_NOTIFY_BROADCAST_OFF;
+
+	clockevents_notify(reason, &pr->id);
+#else
 	cpumask_t mask = cpumask_of_cpu(pr->id);
 
 	if (pr->power.timer_broadcast_on_state < INT_MAX)
 		on_each_cpu(switch_APIC_timer_to_ipi, &mask, 1, 1);
 	else
 		on_each_cpu(switch_ipi_to_APIC_timer, &mask, 1, 1);
+#endif
+}
+
+/* Power(C) State timer broadcast control */
+static void acpi_state_timer_broadcast(struct acpi_processor *pr,
+				       struct acpi_processor_cx *cx,
+				       int broadcast)
+{
+#ifdef CONFIG_GENERIC_CLOCKEVENTS
+
+	int state = cx - pr->power.states;
+
+	if (state >= pr->power.timer_broadcast_on_state) {
+		unsigned long reason;
+
+		reason = broadcast ?  CLOCK_EVT_NOTIFY_BROADCAST_ENTER :
+			CLOCK_EVT_NOTIFY_BROADCAST_EXIT;
+		clockevents_notify(reason, &pr->id);
+	}
+#endif
 }
 
 #else
@@ -287,6 +316,11 @@
 static void acpi_timer_check_state(int state, struct acpi_processor *pr,
 				   struct acpi_processor_cx *cstate) { }
 static void acpi_propagate_timer_broadcast(struct acpi_processor *pr) { }
+static void acpi_state_timer_broadcast(struct acpi_processor *pr,
+				       struct acpi_processor_cx *cx,
+				       int broadcast)
+{
+}
 
 #endif
 
@@ -434,6 +468,7 @@
 		/* Get start time (ticks) */
 		t1 = inl(acpi_gbl_FADT.xpm_timer_block.address);
 		/* Invoke C2 */
+		acpi_state_timer_broadcast(pr, cx, 1);
 		acpi_cstate_enter(cx);
 		/* Get end time (ticks) */
 		t2 = inl(acpi_gbl_FADT.xpm_timer_block.address);
@@ -448,6 +483,7 @@
 		/* Compute time (ticks) that we were actually asleep */
 		sleep_ticks =
 		    ticks_elapsed(t1, t2) - cx->latency_ticks - C2_OVERHEAD;
+		acpi_state_timer_broadcast(pr, cx, 0);
 		break;
 
 	case ACPI_STATE_C3:
@@ -469,6 +505,7 @@
 		/* Get start time (ticks) */
 		t1 = inl(acpi_gbl_FADT.xpm_timer_block.address);
 		/* Invoke C3 */
+		acpi_state_timer_broadcast(pr, cx, 1);
 		acpi_cstate_enter(cx);
 		/* Get end time (ticks) */
 		t2 = inl(acpi_gbl_FADT.xpm_timer_block.address);
@@ -488,6 +525,7 @@
 		/* Compute time (ticks) that we were actually asleep */
 		sleep_ticks =
 		    ticks_elapsed(t1, t2) - cx->latency_ticks - C3_OVERHEAD;
+		acpi_state_timer_broadcast(pr, cx, 0);
 		break;
 
 	default: