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, 638 insertions, 0 deletions

diff --git a/kernel/arch/ia64/Kconfig b/kernel/arch/ia64/Kconfig
new file mode 100644
index 000000000..76d25b2cf
--- /dev/null
+++ b/kernel/arch/ia64/Kconfig
@@ -0,0 +1,638 @@
+config PGTABLE_LEVELS
+	int "Page Table Levels" if !IA64_PAGE_SIZE_64KB
+	range 3 4 if !IA64_PAGE_SIZE_64KB
+	default 3
+
+source "init/Kconfig"
+
+source "kernel/Kconfig.freezer"
+
+menu "Processor type and features"
+
+config IA64
+	bool
+	select ARCH_MIGHT_HAVE_PC_PARPORT
+	select ARCH_MIGHT_HAVE_PC_SERIO
+	select PCI if (!IA64_HP_SIM)
+	select ACPI if (!IA64_HP_SIM)
+	select ACPI_SYSTEM_POWER_STATES_SUPPORT if ACPI
+	select ARCH_MIGHT_HAVE_ACPI_PDC if ACPI
+	select HAVE_UNSTABLE_SCHED_CLOCK
+	select HAVE_IDE
+	select HAVE_OPROFILE
+	select HAVE_KPROBES
+	select HAVE_KRETPROBES
+	select HAVE_FTRACE_MCOUNT_RECORD
+	select HAVE_DYNAMIC_FTRACE if (!ITANIUM)
+	select HAVE_FUNCTION_TRACER
+	select HAVE_DMA_ATTRS
+	select TTY
+	select HAVE_ARCH_TRACEHOOK
+	select HAVE_DMA_API_DEBUG
+	select HAVE_MEMBLOCK
+	select HAVE_MEMBLOCK_NODE_MAP
+	select HAVE_VIRT_CPU_ACCOUNTING
+	select ARCH_HAS_SG_CHAIN
+	select VIRT_TO_BUS
+	select ARCH_DISCARD_MEMBLOCK
+	select GENERIC_IRQ_PROBE
+	select GENERIC_PENDING_IRQ if SMP
+	select GENERIC_IRQ_SHOW
+	select GENERIC_IRQ_LEGACY
+	select ARCH_WANT_OPTIONAL_GPIOLIB
+	select ARCH_HAVE_NMI_SAFE_CMPXCHG
+	select GENERIC_IOMAP
+	select GENERIC_SMP_IDLE_THREAD
+	select ARCH_INIT_TASK
+	select ARCH_TASK_STRUCT_ALLOCATOR
+	select ARCH_THREAD_INFO_ALLOCATOR
+	select ARCH_CLOCKSOURCE_DATA
+	select GENERIC_TIME_VSYSCALL_OLD
+	select SYSCTL_ARCH_UNALIGN_NO_WARN
+	select HAVE_MOD_ARCH_SPECIFIC
+	select MODULES_USE_ELF_RELA
+	select ARCH_USE_CMPXCHG_LOCKREF
+	select HAVE_ARCH_AUDITSYSCALL
+	default y
+	help
+	  The Itanium Processor Family is Intel's 64-bit successor to
+	  the 32-bit X86 line.  The IA-64 Linux project has a home
+	  page at <http://www.linuxia64.org/> and a mailing list at
+	  <linux-ia64@vger.kernel.org>.
+
+config 64BIT
+	bool
+	select ATA_NONSTANDARD if ATA
+	default y
+
+config ZONE_DMA
+	def_bool y
+	depends on !IA64_SGI_SN2
+
+config QUICKLIST
+	bool
+	default y
+
+config MMU
+	bool
+	default y
+
+config ARCH_DMA_ADDR_T_64BIT
+	def_bool y
+
+config NEED_DMA_MAP_STATE
+	def_bool y
+
+config NEED_SG_DMA_LENGTH
+	def_bool y
+
+config SWIOTLB
+       bool
+
+config STACKTRACE_SUPPORT
+	def_bool y
+
+config GENERIC_LOCKBREAK
+	def_bool n
+
+config RWSEM_XCHGADD_ALGORITHM
+	bool
+	default y
+
+config HUGETLB_PAGE_SIZE_VARIABLE
+	bool
+	depends on HUGETLB_PAGE
+	default y
+
+config GENERIC_CALIBRATE_DELAY
+	bool
+	default y
+
+config HAVE_SETUP_PER_CPU_AREA
+	def_bool y
+
+config DMI
+	bool
+	default y
+	select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
+
+config EFI
+	bool
+	select UCS2_STRING
+	default y
+
+config SCHED_OMIT_FRAME_POINTER
+	bool
+	default y
+
+config IA64_UNCACHED_ALLOCATOR
+	bool
+	select GENERIC_ALLOCATOR
+
+config ARCH_USES_PG_UNCACHED
+	def_bool y
+	depends on IA64_UNCACHED_ALLOCATOR
+
+config AUDIT_ARCH
+	bool
+	default y
+
+menuconfig PARAVIRT_GUEST
+	bool "Paravirtualized guest support"
+	depends on BROKEN
+	help
+	  Say Y here to get to see options related to running Linux under
+	  various hypervisors.  This option alone does not add any kernel code.
+
+	  If you say N, all options in this submenu will be skipped and disabled.
+
+if PARAVIRT_GUEST
+
+config PARAVIRT
+	bool "Enable paravirtualization code"
+	depends on PARAVIRT_GUEST
+	default y
+	help
+	  This changes the kernel so it can modify itself when it is run
+	  under a hypervisor, potentially improving performance significantly
+	  over full virtualization.  However, when run without a hypervisor
+	  the kernel is theoretically slower and slightly larger.
+
+endif
+
+choice
+	prompt "System type"
+	default IA64_GENERIC
+
+config IA64_GENERIC
+	bool "generic"
+	select NUMA
+	select ACPI_NUMA
+	select SWIOTLB
+	select PCI_MSI
+	help
+	  This selects the system type of your hardware.  A "generic" kernel
+	  will run on any supported IA-64 system.  However, if you configure
+	  a kernel for your specific system, it will be faster and smaller.
+
+	  generic		For any supported IA-64 system
+	  DIG-compliant		For DIG ("Developer's Interface Guide") compliant systems
+	  DIG+Intel+IOMMU	For DIG systems with Intel IOMMU
+	  HP-zx1/sx1000		For HP systems
+	  HP-zx1/sx1000+swiotlb	For HP systems with (broken) DMA-constrained devices.
+	  SGI-SN2		For SGI Altix systems
+	  SGI-UV		For SGI UV systems
+	  Ski-simulator		For the HP simulator <http://www.hpl.hp.com/research/linux/ski/>
+
+	  If you don't know what to do, choose "generic".
+
+config IA64_DIG
+	bool "DIG-compliant"
+	select SWIOTLB
+
+config IA64_DIG_VTD
+	bool "DIG+Intel+IOMMU"
+	select INTEL_IOMMU
+	select PCI_MSI
+
+config IA64_HP_ZX1
+	bool "HP-zx1/sx1000"
+	help
+	  Build a kernel that runs on HP zx1 and sx1000 systems.  This adds
+	  support for the HP I/O MMU.
+
+config IA64_HP_ZX1_SWIOTLB
+	bool "HP-zx1/sx1000 with software I/O TLB"
+	select SWIOTLB
+	help
+	  Build a kernel that runs on HP zx1 and sx1000 systems even when they
+	  have broken PCI devices which cannot DMA to full 32 bits.  Apart
+	  from support for the HP I/O MMU, this includes support for the software
+	  I/O TLB, which allows supporting the broken devices at the expense of
+	  wasting some kernel memory (about 2MB by default).
+
+config IA64_SGI_SN2
+	bool "SGI-SN2"
+	select NUMA
+	select ACPI_NUMA
+	help
+	  Selecting this option will optimize the kernel for use on sn2 based
+	  systems, but the resulting kernel binary will not run on other
+	  types of ia64 systems.  If you have an SGI Altix system, it's safe
+	  to select this option.  If in doubt, select ia64 generic support
+	  instead.
+
+config IA64_SGI_UV
+	bool "SGI-UV"
+	select NUMA
+	select ACPI_NUMA
+	select SWIOTLB
+	help
+	  Selecting this option will optimize the kernel for use on UV based
+	  systems, but the resulting kernel binary will not run on other
+	  types of ia64 systems.  If you have an SGI UV system, it's safe
+	  to select this option.  If in doubt, select ia64 generic support
+	  instead.
+
+config IA64_HP_SIM
+	bool "Ski-simulator"
+	select SWIOTLB
+	depends on !PM
+
+endchoice
+
+choice
+	prompt "Processor type"
+	default ITANIUM
+
+config ITANIUM
+	bool "Itanium"
+	help
+	  Select your IA-64 processor type.  The default is Itanium.
+	  This choice is safe for all IA-64 systems, but may not perform
+	  optimally on systems with, say, Itanium 2 or newer processors.
+
+config MCKINLEY
+	bool "Itanium 2"
+	help
+	  Select this to configure for an Itanium 2 (McKinley) processor.
+
+endchoice
+
+choice
+	prompt "Kernel page size"
+	default IA64_PAGE_SIZE_16KB
+
+config IA64_PAGE_SIZE_4KB
+	bool "4KB"
+	help
+	  This lets you select the page size of the kernel.  For best IA-64
+	  performance, a page size of 8KB or 16KB is recommended.  For best
+	  IA-32 compatibility, a page size of 4KB should be selected (the vast
+	  majority of IA-32 binaries work perfectly fine with a larger page
+	  size).  For Itanium 2 or newer systems, a page size of 64KB can also
+	  be selected.
+
+	  4KB                For best IA-32 compatibility
+	  8KB                For best IA-64 performance
+	  16KB               For best IA-64 performance
+	  64KB               Requires Itanium 2 or newer processor.
+
+	  If you don't know what to do, choose 16KB.
+
+config IA64_PAGE_SIZE_8KB
+	bool "8KB"
+
+config IA64_PAGE_SIZE_16KB
+	bool "16KB"
+
+config IA64_PAGE_SIZE_64KB
+	depends on !ITANIUM
+	bool "64KB"
+
+endchoice
+
+if IA64_HP_SIM
+config HZ
+	default 32
+endif
+
+if !IA64_HP_SIM
+source kernel/Kconfig.hz
+endif
+
+config IA64_BRL_EMU
+	bool
+	depends on ITANIUM
+	default y
+
+# align cache-sensitive data to 128 bytes
+config IA64_L1_CACHE_SHIFT
+	int
+	default "7" if MCKINLEY
+	default "6" if ITANIUM
+
+config IA64_CYCLONE
+	bool "Cyclone (EXA) Time Source support"
+	help
+	  Say Y here to enable support for IBM EXA Cyclone time source.
+	  If you're unsure, answer N.
+
+config IOSAPIC
+	bool
+	depends on !IA64_HP_SIM
+	default y
+
+config FORCE_MAX_ZONEORDER
+	int "MAX_ORDER (11 - 17)"  if !HUGETLB_PAGE
+	range 11 17  if !HUGETLB_PAGE
+	default "17" if HUGETLB_PAGE
+	default "11"
+
+config SMP
+	bool "Symmetric multi-processing support"
+	help
+	  This enables support for systems with more than one CPU. If you have
+	  a system with only one CPU, say N.  If you have a system with more
+	  than one CPU, say Y.
+
+	  If you say N here, the kernel will run on single and multiprocessor
+	  systems, but will use only one CPU of a multiprocessor system.  If
+	  you say Y here, the kernel will run on many, but not all,
+	  single processor systems.  On a single processor system, the kernel
+	  will run faster if you say N here.
+
+	  See also the SMP-HOWTO available at
+	  <http://www.tldp.org/docs.html#howto>.
+
+	  If you don't know what to do here, say N.
+
+config NR_CPUS
+	int "Maximum number of CPUs (2-4096)"
+	range 2 4096
+	depends on SMP
+	default "4096"
+	help
+	  You should set this to the number of CPUs in your system, but
+	  keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
+	  only use 2 CPUs on a >2 CPU system.  Setting this to a value larger
+	  than 64 will cause the use of a CPU mask array, causing a small
+	  performance hit.
+
+config HOTPLUG_CPU
+	bool "Support for hot-pluggable CPUs"
+	depends on SMP
+	default n
+	---help---
+	  Say Y here to experiment with turning CPUs off and on.  CPUs
+	  can be controlled through /sys/devices/system/cpu/cpu#.
+	  Say N if you want to disable CPU hotplug.
+
+config ARCH_ENABLE_MEMORY_HOTPLUG
+	def_bool y
+
+config ARCH_ENABLE_MEMORY_HOTREMOVE
+	def_bool y
+
+config SCHED_SMT
+	bool "SMT scheduler support"
+	depends on SMP
+	help
+	  Improves the CPU scheduler's decision making when dealing with
+	  Intel IA64 chips with MultiThreading at a cost of slightly increased
+	  overhead in some places. If unsure say N here.
+
+config PERMIT_BSP_REMOVE
+	bool "Support removal of Bootstrap Processor"
+	depends on HOTPLUG_CPU
+	default n
+	---help---
+	Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
+	support. 
+
+config FORCE_CPEI_RETARGET
+	bool "Force assumption that CPEI can be re-targeted"
+	depends on PERMIT_BSP_REMOVE
+	default n
+	---help---
+	Say Y if you need to force the assumption that CPEI can be re-targeted to
+	any cpu in the system. This hint is available via ACPI 3.0 specifications.
+	Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
+	This option it useful to enable this feature on older BIOS's as well.
+	You can also enable this by using boot command line option force_cpei=1.
+
+source "kernel/Kconfig.preempt"
+
+source "mm/Kconfig"
+
+config ARCH_SELECT_MEMORY_MODEL
+	def_bool y
+
+config ARCH_DISCONTIGMEM_ENABLE
+	def_bool y
+	help
+	  Say Y to support efficient handling of discontiguous physical memory,
+	  for architectures which are either NUMA (Non-Uniform Memory Access)
+	  or have huge holes in the physical address space for other reasons.
+ 	  See <file:Documentation/vm/numa> for more.
+
+config ARCH_FLATMEM_ENABLE
+	def_bool y
+
+config ARCH_SPARSEMEM_ENABLE
+	def_bool y
+	depends on ARCH_DISCONTIGMEM_ENABLE
+	select SPARSEMEM_VMEMMAP_ENABLE
+
+config ARCH_DISCONTIGMEM_DEFAULT
+	def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
+	depends on ARCH_DISCONTIGMEM_ENABLE
+
+config NUMA
+	bool "NUMA support"
+	depends on !IA64_HP_SIM && !FLATMEM
+	default y if IA64_SGI_SN2
+	select ACPI_NUMA if ACPI
+	help
+	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
+	  Access).  This option is for configuring high-end multiprocessor
+	  server systems.  If in doubt, say N.
+
+config NODES_SHIFT
+	int "Max num nodes shift(3-10)"
+	range 3 10
+	default "10"
+	depends on NEED_MULTIPLE_NODES
+	help
+	  This option specifies the maximum number of nodes in your SSI system.
+	  MAX_NUMNODES will be 2^(This value).
+	  If in doubt, use the default.
+
+# VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
+# VIRTUAL_MEM_MAP has been retained for historical reasons.
+config VIRTUAL_MEM_MAP
+	bool "Virtual mem map"
+	depends on !SPARSEMEM
+	default y if !IA64_HP_SIM
+	help
+	  Say Y to compile the kernel with support for a virtual mem map.
+	  This code also only takes effect if a memory hole of greater than
+	  1 Gb is found during boot.  You must turn this option on if you
+	  require the DISCONTIGMEM option for your machine. If you are
+	  unsure, say Y.
+
+config HOLES_IN_ZONE
+	bool
+	default y if VIRTUAL_MEM_MAP
+
+config HAVE_ARCH_EARLY_PFN_TO_NID
+	def_bool NUMA && SPARSEMEM
+
+config HAVE_ARCH_NODEDATA_EXTENSION
+	def_bool y
+	depends on NUMA
+
+config USE_PERCPU_NUMA_NODE_ID
+	def_bool y
+	depends on NUMA
+
+config HAVE_MEMORYLESS_NODES
+	def_bool NUMA
+
+config ARCH_PROC_KCORE_TEXT
+	def_bool y
+	depends on PROC_KCORE
+
+config IA64_MCA_RECOVERY
+	tristate "MCA recovery from errors other than TLB."
+
+config PERFMON
+	bool "Performance monitor support"
+	help
+	  Selects whether support for the IA-64 performance monitor hardware
+	  is included in the kernel.  This makes some kernel data-structures a
+	  little bigger and slows down execution a bit, but it is generally
+	  a good idea to turn this on.  If you're unsure, say Y.
+
+config IA64_PALINFO
+	tristate "/proc/pal support"
+	help
+	  If you say Y here, you are able to get PAL (Processor Abstraction
+	  Layer) information in /proc/pal.  This contains useful information
+	  about the processors in your systems, such as cache and TLB sizes
+	  and the PAL firmware version in use.
+
+	  To use this option, you have to ensure that the "/proc file system
+	  support" (CONFIG_PROC_FS) is enabled, too.
+
+config IA64_MC_ERR_INJECT
+	tristate "MC error injection support"
+	help
+	  Adds support for MC error injection. If enabled, the kernel 
+	  will provide a sysfs interface for user applications to
+	  call MC error injection PAL procedures to inject various errors.
+	  This is a useful tool for MCA testing.
+
+	  If you're unsure, do not select this option.
+
+config SGI_SN
+	def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
+
+config IA64_ESI
+	bool "ESI (Extensible SAL Interface) support"
+	help
+	  If you say Y here, support is built into the kernel to
+	  make ESI calls.  ESI calls are used to support vendor-specific
+	  firmware extensions, such as the ability to inject memory-errors
+	  for test-purposes.  If you're unsure, say N.
+
+config IA64_HP_AML_NFW
+	bool "Support ACPI AML calls to native firmware"
+	help
+	  This driver installs a global ACPI Operation Region handler for
+	  region 0xA1.  AML methods can use this OpRegion to call arbitrary
+	  native firmware functions.  The driver installs the OpRegion
+	  handler if there is an HPQ5001 device or if the user supplies
+	  the "force" module parameter, e.g., with the "aml_nfw.force"
+	  kernel command line option.
+
+source "drivers/sn/Kconfig"
+
+config KEXEC
+	bool "kexec system call"
+	depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
+	help
+	  kexec is a system call that implements the ability to shutdown your
+	  current kernel, and to start another kernel.  It is like a reboot
+	  but it is independent of the system firmware.   And like a reboot
+	  you can start any kernel with it, not just Linux.
+
+	  The name comes from the similarity to the exec system call.
+
+	  It is an ongoing process to be certain the hardware in a machine
+	  is properly shutdown, so do not be surprised if this code does not
+	  initially work for you.  As of this writing the exact hardware
+	  interface is strongly in flux, so no good recommendation can be
+	  made.
+
+config CRASH_DUMP
+	  bool "kernel crash dumps"
+	  depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
+	  help
+	    Generate crash dump after being started by kexec.
+
+source "drivers/firmware/Kconfig"
+
+source "fs/Kconfig.binfmt"
+
+endmenu
+
+menu "Power management and ACPI options"
+
+source "kernel/power/Kconfig"
+
+source "drivers/acpi/Kconfig"
+
+if PM
+menu "CPU Frequency scaling"
+source "drivers/cpufreq/Kconfig"
+endmenu
+endif
+
+endmenu
+
+if !IA64_HP_SIM
+
+menu "Bus options (PCI, PCMCIA)"
+
+config PCI
+	bool "PCI support"
+	help
+	  Real IA-64 machines all have PCI/PCI-X/PCI Express busses.  Say Y
+	  here unless you are using a simulator without PCI support.
+
+config PCI_DOMAINS
+	def_bool PCI
+
+config PCI_SYSCALL
+	def_bool PCI
+
+source "drivers/pci/pcie/Kconfig"
+
+source "drivers/pci/Kconfig"
+
+source "drivers/pci/hotplug/Kconfig"
+
+source "drivers/pcmcia/Kconfig"
+
+endmenu
+
+endif
+
+source "net/Kconfig"
+
+source "drivers/Kconfig"
+
+source "arch/ia64/hp/sim/Kconfig"
+
+config MSPEC
+	tristate "Memory special operations driver"
+	depends on IA64
+	select IA64_UNCACHED_ALLOCATOR
+	help
+	  If you have an ia64 and you want to enable memory special
+	  operations support (formerly known as fetchop), say Y here,
+	  otherwise say N.
+
+source "fs/Kconfig"
+
+source "arch/ia64/Kconfig.debug"
+
+source "security/Kconfig"
+
+source "crypto/Kconfig"
+
+source "lib/Kconfig"
+
+config IOMMU_HELPER
+	def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)