From a70c2e2e40d5f6b4f6280e41f10811b51c25acf4 Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Mon, 26 Oct 2009 18:47:42 +0000
Subject: [PATCH] --- yaml --- r: 169595 b: refs/heads/master c:
 1bf4af165050d90ea6659ffb2536ec8ca783aab5 h: refs/heads/master i:   169593:
 c655b6bc71ac0ce4d014fa05dc62d969abd95349   169591:
 dbd35b28456af590eec5efc423ea98338f2b50b8 v: v3

---
 [refs]                                 |  2 +-
 trunk/arch/powerpc/include/asm/trace.h | 53 ++++++++++++++++++++++++++
 trunk/arch/powerpc/kernel/irq.c        |  6 +++
 3 files changed, 60 insertions(+), 1 deletion(-)
 create mode 100644 trunk/arch/powerpc/include/asm/trace.h

diff --git a/[refs] b/[refs]
index 3acb51af4801..65725697bdcf 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 196f02bf900c5eb6f85d889c4f70e7cc11fda7e8
+refs/heads/master: 1bf4af165050d90ea6659ffb2536ec8ca783aab5
diff --git a/trunk/arch/powerpc/include/asm/trace.h b/trunk/arch/powerpc/include/asm/trace.h
new file mode 100644
index 000000000000..187696da5ae7
--- /dev/null
+++ b/trunk/arch/powerpc/include/asm/trace.h
@@ -0,0 +1,53 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM powerpc
+
+#if !defined(_TRACE_POWERPC_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_POWERPC_H
+
+#include <linux/tracepoint.h>
+
+struct pt_regs;
+
+TRACE_EVENT(irq_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(irq_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
+#undef TRACE_INCLUDE_FILE
+
+#define TRACE_INCLUDE_PATH asm
+#define TRACE_INCLUDE_FILE trace
+
+#include <trace/define_trace.h>
diff --git a/trunk/arch/powerpc/kernel/irq.c b/trunk/arch/powerpc/kernel/irq.c
index e5d121177984..02a334662cc0 100644
--- a/trunk/arch/powerpc/kernel/irq.c
+++ b/trunk/arch/powerpc/kernel/irq.c
@@ -70,6 +70,8 @@
 #include <asm/firmware.h>
 #include <asm/lv1call.h>
 #endif
+#define CREATE_TRACE_POINTS
+#include <asm/trace.h>
 
 int __irq_offset_value;
 static int ppc_spurious_interrupts;
@@ -325,6 +327,8 @@ void do_IRQ(struct pt_regs *regs)
 	struct pt_regs *old_regs = set_irq_regs(regs);
 	unsigned int irq;
 
+	trace_irq_entry(regs);
+
 	irq_enter();
 
 	check_stack_overflow();
@@ -348,6 +352,8 @@ void do_IRQ(struct pt_regs *regs)
 		timer_interrupt(regs);
 	}
 #endif
+
+	trace_irq_exit(regs);
 }
 
 void __init init_IRQ(void)