Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

1 files changed, 64 insertions, 0 deletions

diff --git a/kernel/arch/sh/oprofile/common.c b/kernel/arch/sh/oprofile/common.c
new file mode 100644
index 000000000..e4dd5d5a1
--- /dev/null
+++ b/kernel/arch/sh/oprofile/common.c
@@ -0,0 +1,64 @@
+/*
+ * arch/sh/oprofile/init.c
+ *
+ * Copyright (C) 2003 - 2010  Paul Mundt
+ *
+ * Based on arch/mips/oprofile/common.c:
+ *
+ *	Copyright (C) 2004, 2005 Ralf Baechle
+ *	Copyright (C) 2005 MIPS Technologies, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/kernel.h>
+#include <linux/oprofile.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/smp.h>
+#include <linux/perf_event.h>
+#include <linux/slab.h>
+#include <asm/processor.h>
+
+extern void sh_backtrace(struct pt_regs * const regs, unsigned int depth);
+
+#ifdef CONFIG_HW_PERF_EVENTS
+/*
+ * This will need to be reworked when multiple PMUs are supported.
+ */
+static char *sh_pmu_op_name;
+
+char *op_name_from_perf_id(void)
+{
+	return sh_pmu_op_name;
+}
+
+int __init oprofile_arch_init(struct oprofile_operations *ops)
+{
+	ops->backtrace = sh_backtrace;
+
+	if (perf_num_counters() == 0)
+		return -ENODEV;
+
+	sh_pmu_op_name = kasprintf(GFP_KERNEL, "%s/%s",
+				   UTS_MACHINE, perf_pmu_name());
+	if (unlikely(!sh_pmu_op_name))
+		return -ENOMEM;
+
+	return oprofile_perf_init(ops);
+}
+
+void oprofile_arch_exit(void)
+{
+	oprofile_perf_exit();
+	kfree(sh_pmu_op_name);
+}
+#else
+int __init oprofile_arch_init(struct oprofile_operations *ops)
+{
+	ops->backtrace = sh_backtrace;
+	return -ENODEV;
+}
+void oprofile_arch_exit(void) {}
+#endif /* CONFIG_HW_PERF_EVENTS */