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, 111 insertions, 0 deletions

diff --git a/kernel/arch/mips/math-emu/ieee754d.c b/kernel/arch/mips/math-emu/ieee754d.c
new file mode 100644
index 000000000..a04e8a7e5
--- /dev/null
+++ b/kernel/arch/mips/math-emu/ieee754d.c
@@ -0,0 +1,111 @@
+/*
+ * Some debug functions
+ *
+ * MIPS floating point support
+ *
+ * Copyright (C) 1994-2000 Algorithmics Ltd.
+ *
+ *  This program is free software; you can distribute it and/or modify it
+ *  under the terms of the GNU General Public License (Version 2) as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope it will be useful, but WITHOUT
+ *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ *  for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA.
+ *
+ *  Nov 7, 2000
+ *  Modified to build and operate in Linux kernel environment.
+ *
+ *  Kevin D. Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com
+ *  Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
+ */
+
+#include <linux/types.h>
+#include <linux/printk.h>
+#include "ieee754.h"
+#include "ieee754sp.h"
+#include "ieee754dp.h"
+
+union ieee754dp ieee754dp_dump(char *m, union ieee754dp x)
+{
+	int i;
+
+	printk("%s", m);
+	printk("<%08x,%08x>\n", (unsigned) (x.bits >> 32),
+	       (unsigned) x.bits);
+	printk("\t=");
+	switch (ieee754dp_class(x)) {
+	case IEEE754_CLASS_QNAN:
+	case IEEE754_CLASS_SNAN:
+		printk("Nan %c", DPSIGN(x) ? '-' : '+');
+		for (i = DP_FBITS - 1; i >= 0; i--)
+			printk("%c", DPMANT(x) & DP_MBIT(i) ? '1' : '0');
+		break;
+	case IEEE754_CLASS_INF:
+		printk("%cInfinity", DPSIGN(x) ? '-' : '+');
+		break;
+	case IEEE754_CLASS_ZERO:
+		printk("%cZero", DPSIGN(x) ? '-' : '+');
+		break;
+	case IEEE754_CLASS_DNORM:
+		printk("%c0.", DPSIGN(x) ? '-' : '+');
+		for (i = DP_FBITS - 1; i >= 0; i--)
+			printk("%c", DPMANT(x) & DP_MBIT(i) ? '1' : '0');
+		printk("e%d", DPBEXP(x) - DP_EBIAS);
+		break;
+	case IEEE754_CLASS_NORM:
+		printk("%c1.", DPSIGN(x) ? '-' : '+');
+		for (i = DP_FBITS - 1; i >= 0; i--)
+			printk("%c", DPMANT(x) & DP_MBIT(i) ? '1' : '0');
+		printk("e%d", DPBEXP(x) - DP_EBIAS);
+		break;
+	default:
+		printk("Illegal/Unknown IEEE754 value class");
+	}
+	printk("\n");
+	return x;
+}
+
+union ieee754sp ieee754sp_dump(char *m, union ieee754sp x)
+{
+	int i;
+
+	printk("%s=", m);
+	printk("<%08x>\n", (unsigned) x.bits);
+	printk("\t=");
+	switch (ieee754sp_class(x)) {
+	case IEEE754_CLASS_QNAN:
+	case IEEE754_CLASS_SNAN:
+		printk("Nan %c", SPSIGN(x) ? '-' : '+');
+		for (i = SP_FBITS - 1; i >= 0; i--)
+			printk("%c", SPMANT(x) & SP_MBIT(i) ? '1' : '0');
+		break;
+	case IEEE754_CLASS_INF:
+		printk("%cInfinity", SPSIGN(x) ? '-' : '+');
+		break;
+	case IEEE754_CLASS_ZERO:
+		printk("%cZero", SPSIGN(x) ? '-' : '+');
+		break;
+	case IEEE754_CLASS_DNORM:
+		printk("%c0.", SPSIGN(x) ? '-' : '+');
+		for (i = SP_FBITS - 1; i >= 0; i--)
+			printk("%c", SPMANT(x) & SP_MBIT(i) ? '1' : '0');
+		printk("e%d", SPBEXP(x) - SP_EBIAS);
+		break;
+	case IEEE754_CLASS_NORM:
+		printk("%c1.", SPSIGN(x) ? '-' : '+');
+		for (i = SP_FBITS - 1; i >= 0; i--)
+			printk("%c", SPMANT(x) & SP_MBIT(i) ? '1' : '0');
+		printk("e%d", SPBEXP(x) - SP_EBIAS);
+		break;
+	default:
+		printk("Illegal/Unknown IEEE754 value class");
+	}
+	printk("\n");
+	return x;
+}