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Subject[PATCH 2/2] FRV: Add basic performance counter support
Date
Add basic performance counter support to the FRV arch.

Signed-off-by: David Howells <dhowells@redhat.com>
---
arch/frv/Kconfig | 1 +
arch/frv/include/asm/perf_counter.h | 17 +++++++++++++++++
arch/frv/lib/Makefile | 2 +-
arch/frv/lib/perf_counter.c | 19 +++++++++++++++++++
4 files changed, 38 insertions(+), 1 deletions(-)
create mode 100644 arch/frv/include/asm/perf_counter.h
create mode 100644 arch/frv/lib/perf_counter.c

diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig
index 8a5bd7a..b86e19c 100644
--- a/arch/frv/Kconfig
+++ b/arch/frv/Kconfig
@@ -7,6 +7,7 @@ config FRV
default y
select HAVE_IDE
select HAVE_ARCH_TRACEHOOK
+ select HAVE_PERF_COUNTERS

config ZONE_DMA
bool
diff --git a/arch/frv/include/asm/perf_counter.h b/arch/frv/include/asm/perf_counter.h
new file mode 100644
index 0000000..ccf726e
--- /dev/null
+++ b/arch/frv/include/asm/perf_counter.h
@@ -0,0 +1,17 @@
+/* FRV performance counter support
+ *
+ * Copyright (C) 2009 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#ifndef _ASM_PERF_COUNTER_H
+#define _ASM_PERF_COUNTER_H
+
+#define PERF_COUNTER_INDEX_OFFSET 0
+
+#endif /* _ASM_PERF_COUNTER_H */
diff --git a/arch/frv/lib/Makefile b/arch/frv/lib/Makefile
index 4ff2fb1..0a37721 100644
--- a/arch/frv/lib/Makefile
+++ b/arch/frv/lib/Makefile
@@ -5,4 +5,4 @@
lib-y := \
__ashldi3.o __lshrdi3.o __muldi3.o __ashrdi3.o __negdi2.o __ucmpdi2.o \
checksum.o memcpy.o memset.o atomic-ops.o atomic64-ops.o \
- outsl_ns.o outsl_sw.o insl_ns.o insl_sw.o cache.o
+ outsl_ns.o outsl_sw.o insl_ns.o insl_sw.o cache.o perf_counter.o
diff --git a/arch/frv/lib/perf_counter.c b/arch/frv/lib/perf_counter.c
new file mode 100644
index 0000000..2000fee
--- /dev/null
+++ b/arch/frv/lib/perf_counter.c
@@ -0,0 +1,19 @@
+/* Performance counter handling
+ *
+ * Copyright (C) 2009 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#include <linux/perf_counter.h>
+
+/*
+ * mark the performance counter as pending
+ */
+void set_perf_counter_pending(void)
+{
+}


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