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, 75 insertions, 0 deletions

diff --git a/kernel/arch/tile/Makefile b/kernel/arch/tile/Makefile
new file mode 100644
index 000000000..4dc380a51
--- /dev/null
+++ b/kernel/arch/tile/Makefile
@@ -0,0 +1,75 @@
+#
+# 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.
+#
+# This file is included by the global makefile so that you can add your own
+# architecture-specific flags and dependencies. Remember to do have actions
+# for "archclean" and "archdep" for cleaning up and making dependencies for
+# this architecture
+
+# If building with TILERA_ROOT set (i.e. using the Tilera Multicore
+# Development Environment) we can set CROSS_COMPILE based on that.
+# If we're not cross-compiling, make sure we're on the right architecture.
+# Only bother to test for a few common targets, to avoid useless errors.
+ifeq ($(CROSS_COMPILE),)
+  ifdef TILERA_ROOT
+    CROSS_COMPILE := $(TILERA_ROOT)/bin/tile-
+  else
+    goals := $(if $(MAKECMDGOALS), $(MAKECMDGOALS), all)
+    ifneq ($(strip $(filter vmlinux modules all,$(goals))),)
+      HOST_ARCH := $(shell uname -m)
+      ifneq ($(HOST_ARCH),$(ARCH))
+$(error Set TILERA_ROOT or CROSS_COMPILE when building $(ARCH) on $(HOST_ARCH))
+      endif
+    endif
+  endif
+endif
+
+# The tile compiler may emit .eh_frame information for backtracing.
+# In kernel modules, this causes load failures due to unsupported relocations.
+KBUILD_CFLAGS   += -fno-asynchronous-unwind-tables
+
+LIBGCC_PATH     := \
+  $(shell $(CC) $(KBUILD_CFLAGS) $(KCFLAGS) -print-libgcc-file-name)
+
+# Provide the path to use for "make defconfig".
+# We default to the newer TILE-Gx architecture if only "tile" is given.
+ifeq ($(ARCH),tile)
+        KBUILD_DEFCONFIG := tilegx_defconfig
+else
+        KBUILD_DEFCONFIG := $(ARCH)_defconfig
+endif
+
+# Used as a file extension when useful, e.g. head_$(BITS).o
+# Not needed for (e.g.) "$(CC) -m32" since the compiler automatically
+# uses the right default anyway.
+export BITS
+ifeq ($(CONFIG_TILEGX),y)
+BITS := 64
+else
+BITS := 32
+endif
+
+head-y		:= arch/tile/kernel/head_$(BITS).o
+
+libs-y		+= arch/tile/lib/
+libs-y		+= $(LIBGCC_PATH)
+
+# See arch/tile/Kbuild for content of core part of the kernel
+core-y		+= arch/tile/
+
+core-$(CONFIG_TILE_GXIO) += arch/tile/gxio/
+
+ifdef TILERA_ROOT
+INSTALL_PATH ?= $(TILERA_ROOT)/tile/boot
+endif
+
+install:
+	install -D -m 755 vmlinux $(INSTALL_PATH)/vmlinux-$(KERNELRELEASE)
+	install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE)
+	install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE)
+
+define archhelp
+	echo '  install         - install kernel into $(INSTALL_PATH)'
+endef