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, 355 insertions, 0 deletions

diff --git a/kernel/arch/arm/Makefile b/kernel/arch/arm/Makefile
new file mode 100644
index 000000000..985227cbb
--- /dev/null
+++ b/kernel/arch/arm/Makefile
@@ -0,0 +1,355 @@
+#
+# arch/arm/Makefile
+#
+# This file is included by the global makefile so that you can add your own
+# architecture-specific flags and dependencies.
+#
+# 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.
+#
+# Copyright (C) 1995-2001 by Russell King
+
+# Ensure linker flags are correct
+LDFLAGS		:=
+
+LDFLAGS_vmlinux	:=-p --no-undefined -X --pic-veneer
+ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
+LDFLAGS_vmlinux	+= --be8
+LDFLAGS_MODULE	+= --be8
+endif
+
+OBJCOPYFLAGS	:=-O binary -R .comment -S
+GZFLAGS		:=-9
+#KBUILD_CFLAGS	+=-pipe
+
+# Never generate .eh_frame
+KBUILD_CFLAGS	+= $(call cc-option,-fno-dwarf2-cfi-asm)
+
+# Do not use arch/arm/defconfig - it's always outdated.
+# Select a platform tht is kept up-to-date
+KBUILD_DEFCONFIG := versatile_defconfig
+
+# defines filename extension depending memory management type.
+ifeq ($(CONFIG_MMU),)
+MMUEXT		:= -nommu
+KBUILD_CFLAGS	+= $(call cc-option,-mno-unaligned-access)
+endif
+
+ifeq ($(CONFIG_FRAME_POINTER),y)
+KBUILD_CFLAGS	+=-fno-omit-frame-pointer -mapcs -mno-sched-prolog
+endif
+
+ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
+KBUILD_CPPFLAGS	+= -mbig-endian
+AS		+= -EB
+LD		+= -EB
+else
+KBUILD_CPPFLAGS	+= -mlittle-endian
+AS		+= -EL
+LD		+= -EL
+endif
+
+# This selects which instruction set is used.
+# Note that GCC does not numerically define an architecture version
+# macro, but instead defines a whole series of macros which makes
+# testing for a specific architecture or later rather impossible.
+arch-$(CONFIG_CPU_32v7M)	=-D__LINUX_ARM_ARCH__=7 -march=armv7-m -Wa,-march=armv7-m
+arch-$(CONFIG_CPU_32v7)		=-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a)
+arch-$(CONFIG_CPU_32v6)		=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6)
+# Only override the compiler option if ARMv6. The ARMv6K extensions are
+# always available in ARMv7
+ifeq ($(CONFIG_CPU_32v6),y)
+arch-$(CONFIG_CPU_32v6K)	=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k)
+endif
+arch-$(CONFIG_CPU_32v5)		=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t)
+arch-$(CONFIG_CPU_32v4T)	=-D__LINUX_ARM_ARCH__=4 -march=armv4t
+arch-$(CONFIG_CPU_32v4)		=-D__LINUX_ARM_ARCH__=4 -march=armv4
+arch-$(CONFIG_CPU_32v3)		=-D__LINUX_ARM_ARCH__=3 -march=armv3
+
+# Evaluate arch cc-option calls now
+arch-y := $(arch-y)
+
+# This selects how we optimise for the processor.
+tune-$(CONFIG_CPU_ARM7TDMI)	=-mtune=arm7tdmi
+tune-$(CONFIG_CPU_ARM720T)	=-mtune=arm7tdmi
+tune-$(CONFIG_CPU_ARM740T)	=-mtune=arm7tdmi
+tune-$(CONFIG_CPU_ARM9TDMI)	=-mtune=arm9tdmi
+tune-$(CONFIG_CPU_ARM940T)	=-mtune=arm9tdmi
+tune-$(CONFIG_CPU_ARM946E)	=$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi)
+tune-$(CONFIG_CPU_ARM920T)	=-mtune=arm9tdmi
+tune-$(CONFIG_CPU_ARM922T)	=-mtune=arm9tdmi
+tune-$(CONFIG_CPU_ARM925T)	=-mtune=arm9tdmi
+tune-$(CONFIG_CPU_ARM926T)	=-mtune=arm9tdmi
+tune-$(CONFIG_CPU_FA526)	=-mtune=arm9tdmi
+tune-$(CONFIG_CPU_SA110)	=-mtune=strongarm110
+tune-$(CONFIG_CPU_SA1100)	=-mtune=strongarm1100
+tune-$(CONFIG_CPU_XSCALE)	=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
+tune-$(CONFIG_CPU_XSC3)		=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
+tune-$(CONFIG_CPU_FEROCEON)	=$(call cc-option,-mtune=marvell-f,-mtune=xscale)
+tune-$(CONFIG_CPU_V6)		=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
+tune-$(CONFIG_CPU_V6K)		=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
+
+# Evaluate tune cc-option calls now
+tune-y := $(tune-y)
+
+ifeq ($(CONFIG_AEABI),y)
+CFLAGS_ABI	:=-mabi=aapcs-linux -mno-thumb-interwork -mfpu=vfp
+else
+CFLAGS_ABI	:=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)
+endif
+
+ifeq ($(CONFIG_ARM_UNWIND),y)
+CFLAGS_ABI	+=-funwind-tables
+endif
+
+ifeq ($(CONFIG_THUMB2_KERNEL),y)
+AFLAGS_AUTOIT	:=$(call as-option,-Wa$(comma)-mimplicit-it=always,-Wa$(comma)-mauto-it)
+AFLAGS_NOWARN	:=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W)
+CFLAGS_ISA	:=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN)
+AFLAGS_ISA	:=$(CFLAGS_ISA) -Wa$(comma)-mthumb
+# Work around buggy relocation from gas if requested:
+ifeq ($(CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11),y)
+CFLAGS_MODULE	+=-fno-optimize-sibling-calls
+endif
+else
+CFLAGS_ISA	:=$(call cc-option,-marm,)
+AFLAGS_ISA	:=$(CFLAGS_ISA)
+endif
+
+# Need -Uarm for gcc < 3.x
+KBUILD_CFLAGS	+=$(CFLAGS_ABI) $(CFLAGS_ISA) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
+KBUILD_AFLAGS	+=$(CFLAGS_ABI) $(AFLAGS_ISA) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float
+
+CHECKFLAGS	+= -D__arm__
+
+#Default value
+head-y		:= arch/arm/kernel/head$(MMUEXT).o
+
+# Text offset. This list is sorted numerically by address in order to
+# provide a means to avoid/resolve conflicts in multi-arch kernels.
+textofs-y	:= 0x00008000
+textofs-$(CONFIG_ARCH_CLPS711X) := 0x00028000
+# We don't want the htc bootloader to corrupt kernel during resume
+textofs-$(CONFIG_PM_H1940)      := 0x00108000
+# SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
+ifeq ($(CONFIG_ARCH_SA1100),y)
+textofs-$(CONFIG_SA1111) := 0x00208000
+endif
+textofs-$(CONFIG_ARCH_MSM8X60) := 0x00208000
+textofs-$(CONFIG_ARCH_MSM8960) := 0x00208000
+textofs-$(CONFIG_ARCH_AXXIA) := 0x00308000
+
+# Machine directory name.  This list is sorted alphanumerically
+# by CONFIG_* macro name.
+machine-$(CONFIG_ARCH_ALPINE)		+= alpine
+machine-$(CONFIG_ARCH_AT91)		+= at91
+machine-$(CONFIG_ARCH_AXXIA)		+= axxia
+machine-$(CONFIG_ARCH_BCM)		+= bcm
+machine-$(CONFIG_ARCH_BERLIN)		+= berlin
+machine-$(CONFIG_ARCH_CLPS711X)		+= clps711x
+machine-$(CONFIG_ARCH_CNS3XXX)		+= cns3xxx
+machine-$(CONFIG_ARCH_DAVINCI)		+= davinci
+machine-$(CONFIG_ARCH_DIGICOLOR)	+= digicolor
+machine-$(CONFIG_ARCH_DOVE)		+= dove
+machine-$(CONFIG_ARCH_EBSA110)		+= ebsa110
+machine-$(CONFIG_ARCH_EFM32)		+= efm32
+machine-$(CONFIG_ARCH_EP93XX)		+= ep93xx
+machine-$(CONFIG_ARCH_EXYNOS)		+= exynos
+machine-$(CONFIG_ARCH_FOOTBRIDGE)	+= footbridge
+machine-$(CONFIG_ARCH_GEMINI)		+= gemini
+machine-$(CONFIG_ARCH_HIGHBANK)		+= highbank
+machine-$(CONFIG_ARCH_HISI)		+= hisi
+machine-$(CONFIG_ARCH_INTEGRATOR)	+= integrator
+machine-$(CONFIG_ARCH_IOP13XX)		+= iop13xx
+machine-$(CONFIG_ARCH_IOP32X)		+= iop32x
+machine-$(CONFIG_ARCH_IOP33X)		+= iop33x
+machine-$(CONFIG_ARCH_IXP4XX)		+= ixp4xx
+machine-$(CONFIG_ARCH_KEYSTONE)		+= keystone
+machine-$(CONFIG_ARCH_KS8695)		+= ks8695
+machine-$(CONFIG_ARCH_LPC32XX)		+= lpc32xx
+machine-$(CONFIG_ARCH_MESON)		+= meson
+machine-$(CONFIG_ARCH_MMP)		+= mmp
+machine-$(CONFIG_ARCH_MOXART)		+= moxart
+machine-$(CONFIG_ARCH_MV78XX0)		+= mv78xx0
+machine-$(CONFIG_ARCH_MVEBU)		+= mvebu
+machine-$(CONFIG_ARCH_MXC)		+= imx
+machine-$(CONFIG_ARCH_MEDIATEK)		+= mediatek
+machine-$(CONFIG_ARCH_MXS)		+= mxs
+machine-$(CONFIG_ARCH_NETX)		+= netx
+machine-$(CONFIG_ARCH_NOMADIK)		+= nomadik
+machine-$(CONFIG_ARCH_NSPIRE)		+= nspire
+machine-$(CONFIG_ARCH_OMAP1)		+= omap1
+machine-$(CONFIG_ARCH_OMAP2PLUS)	+= omap2
+machine-$(CONFIG_ARCH_ORION5X)		+= orion5x
+machine-$(CONFIG_ARCH_PICOXCELL)	+= picoxcell
+machine-$(CONFIG_ARCH_PXA)		+= pxa
+machine-$(CONFIG_ARCH_QCOM)		+= qcom
+machine-$(CONFIG_ARCH_REALVIEW)		+= realview
+machine-$(CONFIG_ARCH_ROCKCHIP)		+= rockchip
+machine-$(CONFIG_ARCH_RPC)		+= rpc
+machine-$(CONFIG_ARCH_S3C24XX)		+= s3c24xx
+machine-$(CONFIG_ARCH_S3C64XX)		+= s3c64xx
+machine-$(CONFIG_ARCH_S5PV210)		+= s5pv210
+machine-$(CONFIG_ARCH_SA1100)		+= sa1100
+machine-$(CONFIG_ARCH_SHMOBILE) 	+= shmobile
+machine-$(CONFIG_ARCH_SIRF)		+= prima2
+machine-$(CONFIG_ARCH_SOCFPGA)		+= socfpga
+machine-$(CONFIG_ARCH_STI)		+= sti
+machine-$(CONFIG_ARCH_SUNXI)		+= sunxi
+machine-$(CONFIG_ARCH_TEGRA)		+= tegra
+machine-$(CONFIG_ARCH_U300)		+= u300
+machine-$(CONFIG_ARCH_U8500)		+= ux500
+machine-$(CONFIG_ARCH_VERSATILE)	+= versatile
+machine-$(CONFIG_ARCH_VEXPRESS)		+= vexpress
+machine-$(CONFIG_ARCH_VT8500)		+= vt8500
+machine-$(CONFIG_ARCH_W90X900)		+= w90x900
+machine-$(CONFIG_ARCH_ZYNQ)		+= zynq
+machine-$(CONFIG_PLAT_SPEAR)		+= spear
+
+# Platform directory name.  This list is sorted alphanumerically
+# by CONFIG_* macro name.
+plat-$(CONFIG_ARCH_EXYNOS)	+= samsung
+plat-$(CONFIG_ARCH_OMAP)	+= omap
+plat-$(CONFIG_ARCH_S3C64XX)	+= samsung
+plat-$(CONFIG_ARCH_S5PV210)	+= samsung
+plat-$(CONFIG_PLAT_IOP)		+= iop
+plat-$(CONFIG_PLAT_ORION)	+= orion
+plat-$(CONFIG_PLAT_PXA)		+= pxa
+plat-$(CONFIG_PLAT_S3C24XX)	+= samsung
+plat-$(CONFIG_PLAT_VERSATILE)	+= versatile
+
+ifeq ($(CONFIG_ARCH_EBSA110),y)
+# This is what happens if you forget the IOCS16 line.
+# PCMCIA cards stop working.
+CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL
+export CFLAGS_3c589_cs.o
+endif
+
+# The byte offset of the kernel image in RAM from the start of RAM.
+TEXT_OFFSET := $(textofs-y)
+
+# The first directory contains additional information for the boot setup code
+ifneq ($(machine-y),)
+MACHINE  := arch/arm/mach-$(word 1,$(machine-y))/
+else
+MACHINE  :=
+endif
+ifeq ($(CONFIG_ARCH_MULTIPLATFORM),y)
+MACHINE  :=
+endif
+
+machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y))
+platdirs := $(patsubst %,arch/arm/plat-%/,$(sort $(plat-y)))
+
+ifneq ($(CONFIG_ARCH_MULTIPLATFORM),y)
+ifeq ($(KBUILD_SRC),)
+KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(machdirs) $(platdirs))
+else
+KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs) $(platdirs))
+endif
+endif
+
+export	TEXT_OFFSET GZFLAGS MMUEXT
+
+# Do we have FASTFPE?
+FASTFPE		:=arch/arm/fastfpe
+ifeq ($(FASTFPE),$(wildcard $(FASTFPE)))
+FASTFPE_OBJ	:=$(FASTFPE)/
+endif
+
+core-$(CONFIG_FPE_NWFPE)	+= arch/arm/nwfpe/
+core-$(CONFIG_FPE_FASTFPE)	+= $(FASTFPE_OBJ)
+core-$(CONFIG_VFP)		+= arch/arm/vfp/
+core-$(CONFIG_XEN)		+= arch/arm/xen/
+core-$(CONFIG_KVM_ARM_HOST) 	+= arch/arm/kvm/
+core-$(CONFIG_VDSO)		+= arch/arm/vdso/
+
+# If we have a machine-specific directory, then include it in the build.
+core-y				+= arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
+core-y				+= arch/arm/probes/
+core-y				+= arch/arm/net/
+core-y				+= arch/arm/crypto/
+core-y				+= arch/arm/firmware/
+core-y				+= $(machdirs) $(platdirs)
+
+drivers-$(CONFIG_OPROFILE)      += arch/arm/oprofile/
+
+libs-y				:= arch/arm/lib/ $(libs-y)
+
+# Default target when executing plain make
+ifeq ($(CONFIG_XIP_KERNEL),y)
+KBUILD_IMAGE := xipImage
+else
+KBUILD_IMAGE := zImage
+endif
+
+# Build the DT binary blobs if we have OF configured
+ifeq ($(CONFIG_USE_OF),y)
+KBUILD_DTBS := dtbs
+endif
+
+all:	$(KBUILD_IMAGE) $(KBUILD_DTBS)
+
+boot := arch/arm/boot
+
+archprepare:
+	$(Q)$(MAKE) $(build)=arch/arm/tools include/generated/mach-types.h
+
+# Convert bzImage to zImage
+bzImage: zImage
+
+BOOT_TARGETS	= zImage Image xipImage bootpImage uImage
+INSTALL_TARGETS	= zinstall uinstall install
+
+PHONY += bzImage $(BOOT_TARGETS) $(INSTALL_TARGETS)
+
+$(BOOT_TARGETS): vmlinux
+	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
+
+$(INSTALL_TARGETS):
+	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
+
+%.dtb: | scripts
+	$(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $(boot)/dts/$@
+
+PHONY += dtbs dtbs_install
+
+dtbs: prepare scripts
+	$(Q)$(MAKE) $(build)=$(boot)/dts
+
+dtbs_install:
+	$(Q)$(MAKE) $(dtbinst)=$(boot)/dts
+
+PHONY += vdso_install
+vdso_install:
+ifeq ($(CONFIG_VDSO),y)
+	$(Q)$(MAKE) $(build)=arch/arm/vdso $@
+endif
+
+# We use MRPROPER_FILES and CLEAN_FILES now
+archclean:
+	$(Q)$(MAKE) $(clean)=$(boot)
+
+# My testing targets (bypasses dependencies)
+bp:;	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage
+i zi:;	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
+
+
+define archhelp
+  echo  '* zImage        - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
+  echo  '  Image         - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
+  echo  '* xipImage      - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)'
+  echo  '  uImage        - U-Boot wrapped zImage'
+  echo  '  bootpImage    - Combined zImage and initial RAM disk'
+  echo  '                  (supply initrd image via make variable INITRD=<path>)'
+  echo  '* dtbs          - Build device tree blobs for enabled boards'
+  echo  '  dtbs_install  - Install dtbs to $(INSTALL_DTBS_PATH)'
+  echo  '  install       - Install uncompressed kernel'
+  echo  '  zinstall      - Install compressed kernel'
+  echo  '  uinstall      - Install U-Boot wrapped compressed kernel'
+  echo  '                  Install using (your) ~/bin/$(INSTALLKERNEL) or'
+  echo  '                  (distribution) /sbin/$(INSTALLKERNEL) or'
+  echo  '                  install to $$(INSTALL_PATH) and run lilo'
+  echo  '  vdso_install  - Install unstripped vdso.so to $$(INSTALL_MOD_PATH)/vdso'
+endef