[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/arch/mips/math-emu/ieee754dp.h b/src/kernel/linux/v4.14/arch/mips/math-emu/ieee754dp.h
new file mode 100644
index 0000000..9ba0230
--- /dev/null
+++ b/src/kernel/linux/v4.14/arch/mips/math-emu/ieee754dp.h
@@ -0,0 +1,82 @@
+/*
+ * IEEE754 floating point
+ * double precision internal header file
+ */
+/*
+ * 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.
+ */
+
+#include <linux/compiler.h>
+
+#include "ieee754int.h"
+
+#define assert(expr) ((void)0)
+
+#define DP_EBIAS 1023
+#define DP_EMIN (-1022)
+#define DP_EMAX 1023
+#define DP_FBITS 52
+#define DP_MBITS 52
+
+#define DP_MBIT(x) ((u64)1 << (x))
+#define DP_HIDDEN_BIT DP_MBIT(DP_FBITS)
+#define DP_SIGN_BIT DP_MBIT(63)
+
+#define DPSIGN(dp) (dp.sign)
+#define DPBEXP(dp) (dp.bexp)
+#define DPMANT(dp) (dp.mant)
+
+static inline int ieee754dp_finite(union ieee754dp x)
+{
+ return DPBEXP(x) != DP_EMAX + 1 + DP_EBIAS;
+}
+
+/* 3bit extended double precision sticky right shift */
+#define XDPSRS(v,rs) \
+ ((rs > (DP_FBITS+3))?1:((v) >> (rs)) | ((v) << (64-(rs)) != 0))
+
+#define XDPSRSX1() \
+ (xe++, (xm = (xm >> 1) | (xm & 1)))
+
+#define XDPSRS1(v) \
+ (((v) >> 1) | ((v) & 1))
+
+/* convert denormal to normalized with extended exponent */
+#define DPDNORMx(m,e) \
+ while ((m >> DP_FBITS) == 0) { m <<= 1; e--; }
+#define DPDNORMX DPDNORMx(xm, xe)
+#define DPDNORMY DPDNORMx(ym, ye)
+#define DPDNORMZ DPDNORMx(zm, ze)
+
+static inline union ieee754dp builddp(int s, int bx, u64 m)
+{
+ union ieee754dp r;
+
+ assert((s) == 0 || (s) == 1);
+ assert((bx) >= DP_EMIN - 1 + DP_EBIAS
+ && (bx) <= DP_EMAX + 1 + DP_EBIAS);
+ assert(((m) >> DP_FBITS) == 0);
+
+ r.sign = s;
+ r.bexp = bx;
+ r.mant = m;
+
+ return r;
+}
+
+extern union ieee754dp __cold ieee754dp_nanxcpt(union ieee754dp);
+extern union ieee754dp ieee754dp_format(int, int, u64);