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, 58 insertions, 0 deletions

diff --git a/kernel/arch/blackfin/include/asm/flat.h b/kernel/arch/blackfin/include/asm/flat.h
new file mode 100644
index 000000000..c1314c56d
--- /dev/null
+++ b/kernel/arch/blackfin/include/asm/flat.h
@@ -0,0 +1,58 @@
+/*
+ * uClinux flat-format executables
+ *
+ * Copyright 2003-2009 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2
+ */
+
+#ifndef __BLACKFIN_FLAT_H__
+#define __BLACKFIN_FLAT_H__
+
+#include <asm/unaligned.h>
+
+#define	flat_argvp_envp_on_stack()		0
+#define	flat_old_ram_flag(flags)		(flags)
+
+extern unsigned long bfin_get_addr_from_rp (unsigned long *ptr,
+					unsigned long relval,
+					unsigned long flags,
+					unsigned long *persistent);
+
+extern void bfin_put_addr_at_rp(unsigned long *ptr, unsigned long addr,
+		                unsigned long relval);
+
+/* The amount by which a relocation can exceed the program image limits
+   without being regarded as an error.  */
+
+#define	flat_reloc_valid(reloc, size)	((reloc) <= (size))
+
+#define	flat_get_addr_from_rp(rp, relval, flags, persistent)	\
+	bfin_get_addr_from_rp(rp, relval, flags, persistent)
+#define	flat_put_addr_at_rp(rp, val, relval)	\
+	bfin_put_addr_at_rp(rp, val, relval)
+
+/* Convert a relocation entry into an address.  */
+static inline unsigned long
+flat_get_relocate_addr (unsigned long relval)
+{
+	return relval & 0x03ffffff; /* Mask out top 6 bits */
+}
+
+static inline int flat_set_persistent(unsigned long relval,
+				      unsigned long *persistent)
+{
+	int type = (relval >> 26) & 7;
+	if (type == 3) {
+		*persistent = relval << 16;
+		return 1;
+	}
+	return 0;
+}
+
+static inline int flat_addr_absolute(unsigned long relval)
+{
+	return (relval & (1 << 29)) != 0;
+}
+
+#endif				/* __BLACKFIN_FLAT_H__ */