---

yaml --- r: 169596 b: refs/heads/master c: 6795b85 h: refs/heads/master v: v3
git-mirror · Oct 28, 2009 · c83d7c9 · c83d7c9
1 parent a70c2e2
commit c83d7c9
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Showing 3 changed files with 41 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 1bf4af165050d90ea6659ffb2536ec8ca783aab5
+refs/heads/master: 6795b85c6a4f690e61e7be31aa150d945c723fb5
diff --git a/trunk/arch/powerpc/include/asm/trace.h b/trunk/arch/powerpc/include/asm/trace.h
@@ -42,6 +42,40 @@ TRACE_EVENT(irq_exit,
 	TP_printk("pt_regs=%p", __entry->regs)
 );
 
+TRACE_EVENT(timer_interrupt_entry,
+
+	TP_PROTO(struct pt_regs *regs),
+
+	TP_ARGS(regs),
+
+	TP_STRUCT__entry(
+		__field(struct pt_regs *, regs)
+	),
+
+	TP_fast_assign(
+		__entry->regs = regs;
+	),
+
+	TP_printk("pt_regs=%p", __entry->regs)
+);
+
+TRACE_EVENT(timer_interrupt_exit,
+
+	TP_PROTO(struct pt_regs *regs),
+
+	TP_ARGS(regs),
+
+	TP_STRUCT__entry(
+		__field(struct pt_regs *, regs)
+	),
+
+	TP_fast_assign(
+		__entry->regs = regs;
+	),
+
+	TP_printk("pt_regs=%p", __entry->regs)
+);
+
 #endif /* _TRACE_POWERPC_H */
 
 #undef TRACE_INCLUDE_PATH

diff --git a/trunk/arch/powerpc/kernel/time.c b/trunk/arch/powerpc/kernel/time.c
@@ -54,6 +54,7 @@
 #include <linux/irq.h>
 #include <linux/delay.h>
 #include <linux/perf_event.h>
+#include <asm/trace.h>
 
 #include <asm/io.h>
 #include <asm/processor.h>
@@ -571,6 +572,8 @@ void timer_interrupt(struct pt_regs * regs)
 	struct clock_event_device *evt = &decrementer->event;
 	u64 now;
 
+	trace_timer_interrupt_entry(regs);
+
 	/* Ensure a positive value is written to the decrementer, or else
 	 * some CPUs will continuue to take decrementer exceptions */
 	set_dec(DECREMENTER_MAX);
@@ -590,6 +593,7 @@ void timer_interrupt(struct pt_regs * regs)
 		now = decrementer->next_tb - now;
 		if (now <= DECREMENTER_MAX)
 			set_dec((int)now);
+		trace_timer_interrupt_exit(regs);
 		return;
 	}
 	old_regs = set_irq_regs(regs);
@@ -620,6 +624,8 @@ void timer_interrupt(struct pt_regs * regs)
 
 	irq_exit();
 	set_irq_regs(old_regs);
+
+	trace_timer_interrupt_exit(regs);
 }
 
 void wakeup_decrementer(void)