linux-kernel - [PATCH 3/3] powerpc perf_event: Add alignment-faults and emulation-faults software events

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Date:	Sun, 18 Oct 2009 22:13:00 +1100
From:	Anton Blanchard <anton@...ba.org>
To:	benh@...nel.crashing.org, mingo@...e.hu, paulus@...ba.org,
	a.p.zijlstra@...llo.nl
Cc:	linuxppc-dev@...abs.org, linux-kernel@...r.kernel.org
Subject: [PATCH 3/3] powerpc perf_event: Add alignment-faults and
	emulation-faults software events


Hook up the alignment-faults and emulation-faults events for powerpc.

Signed-off-by: Anton Blanchard <anton@...ba.org>
---

Index: linux.trees.git/arch/powerpc/include/asm/emulated_ops.h
===================================================================
--- linux.trees.git.orig/arch/powerpc/include/asm/emulated_ops.h	2009-09-22 13:45:07.000000000 +1000
+++ linux.trees.git/arch/powerpc/include/asm/emulated_ops.h	2009-09-22 13:45:27.000000000 +1000
@@ -19,6 +19,7 @@
 #define _ASM_POWERPC_EMULATED_OPS_H
 
 #include <asm/atomic.h>
+#include <linux/perf_event.h>
 
 
 #ifdef CONFIG_PPC_EMULATED_STATS
@@ -71,7 +72,18 @@ extern void ppc_warn_emulated_print(cons
 
 #endif /* !CONFIG_PPC_EMULATED_STATS */
 
-#define PPC_WARN_EMULATED(type, regs)	__PPC_WARN_EMULATED(type)
-#define PPC_WARN_ALIGNMENT(type, regs)	__PPC_WARN_EMULATED(type)
+#define PPC_WARN_EMULATED(type, regs)					\
+	do {								\
+		perf_sw_event(PERF_COUNT_SW_EMULATION_FAULTS,		\
+			1, 0, regs, 0);					\
+		__PPC_WARN_EMULATED(type);				\
+	} while (0)
+
+#define PPC_WARN_ALIGNMENT(type, regs)					\
+	do {								\
+		perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS,		\
+			1, 0, regs, regs->dar);				\
+		__PPC_WARN_EMULATED(type);				\
+	} while (0)
 
 #endif /* _ASM_POWERPC_EMULATED_OPS_H */
--
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