2 files changed, 59 insertions, 0 deletions

diff --git a/arch/powerpc/include/asm/trace.h b/arch/powerpc/include/asm/trace.h
new file mode 100644
index 000000000000..187696da5ae7
--- /dev/null
+++ b/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/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index e5d121177984..02a334662cc0 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/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)