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+# For a description of the syntax of this configuration file,
+# see Documentation/kbuild/config-language.txt.
+
+config MMU
+ def_bool y
+
+config GENERIC_CSUM
+ def_bool y
+
+config GENERIC_HARDIRQS
+ def_bool y
+
+config GENERIC_HARDIRQS_NO__DO_IRQ
+ def_bool y
+
+config GENERIC_IRQ_PROBE
+ def_bool y
+
+config GENERIC_PENDING_IRQ
+ def_bool y
+ depends on GENERIC_HARDIRQS && SMP
+
+config SEMAPHORE_SLEEPERS
+ def_bool y
+
+config HAVE_ARCH_ALLOC_REMAP
+ def_bool y
+
+config HAVE_SETUP_PER_CPU_AREA
+ def_bool y
+
+config NEED_PER_CPU_PAGE_FIRST_CHUNK
+ def_bool y
+
+config SYS_SUPPORTS_HUGETLBFS
+ def_bool y
+
+config GENERIC_TIME
+ def_bool y
+
+config GENERIC_CLOCKEVENTS
+ def_bool y
+
+# FIXME: tilegx can implement a more efficent rwsem.
+config RWSEM_GENERIC_SPINLOCK
+ def_bool y
+
+# We have a very flat architecture from a migration point of view,
+# so save boot time by presetting this (particularly useful on tile-sim).
+config DEFAULT_MIGRATION_COST
+ int
+ default "10000000"
+
+# We only support gcc 4.4 and above, so this should work.
+config ARCH_SUPPORTS_OPTIMIZED_INLINING
+ def_bool y
+
+config ARCH_PHYS_ADDR_T_64BIT
+ def_bool y
+
+config LOCKDEP_SUPPORT
+ def_bool y
+
+config STACKTRACE_SUPPORT
+ def_bool y
+ select STACKTRACE
+
+# We use discontigmem for now; at some point we may want to switch
+# to sparsemem (Tilera bug 7996).
+config ARCH_DISCONTIGMEM_ENABLE
+ def_bool y
+
+config ARCH_DISCONTIGMEM_DEFAULT
+ def_bool y
+
+config TRACE_IRQFLAGS_SUPPORT
+ def_bool y
+
+config STRICT_DEVMEM
+ def_bool y
+
+# SMP is required for Tilera Linux.
+config SMP
+ def_bool y
+
+# Allow checking for compile-time determined overflow errors in
+# copy_from_user(). There are still unprovable places in the
+# generic code as of 2.6.34, so this option is not really compatible
+# with -Werror, which is more useful in general.
+config DEBUG_COPY_FROM_USER
+ def_bool n
+
+config HVC_TILE
+ select HVC_DRIVER
+ def_bool y
+
+config TILE
+ def_bool y
+ select GENERIC_FIND_FIRST_BIT
+ select GENERIC_FIND_NEXT_BIT
+ select USE_GENERIC_SMP_HELPERS
+ select CC_OPTIMIZE_FOR_SIZE
+
+# FIXME: investigate whether we need/want these options.
+# select HAVE_IOREMAP_PROT
+# select HAVE_OPTPROBES
+# select HAVE_REGS_AND_STACK_ACCESS_API
+# select HAVE_HW_BREAKPOINT
+# select PERF_EVENTS
+# select HAVE_USER_RETURN_NOTIFIER
+# config NO_BOOTMEM
+# config ARCH_SUPPORTS_DEBUG_PAGEALLOC
+# config HUGETLB_PAGE_SIZE_VARIABLE
+
+
+mainmenu "Linux/TILE Kernel Configuration"
+
+# Please note: TILE-Gx support is not yet finalized; this is
+# the preliminary support. TILE-Gx drivers are only provided
+# with the alpha or beta test versions for Tilera customers.
+config TILEGX
+ depends on EXPERIMENTAL
+ bool "Building with TILE-Gx (64-bit) compiler and toolchain"
+
+config 64BIT
+ depends on TILEGX
+ def_bool y
+
+config ARCH_DEFCONFIG
+ string
+ default "arch/tile/configs/tile_defconfig" if !TILEGX
+ default "arch/tile/configs/tilegx_defconfig" if TILEGX
+
+source "init/Kconfig"
+
+menu "Tilera-specific configuration"
+
+config NR_CPUS
+ int "Maximum number of tiles (2-255)"
+ range 2 255
+ depends on SMP
+ default "64"
+ ---help---
+ Building with 64 is the recommended value, but a slightly
+ smaller kernel memory footprint results from using a smaller
+ value on chips with fewer tiles.
+
+source "kernel/time/Kconfig"
+
+source "kernel/Kconfig.hz"
+
+config KEXEC
+ bool "kexec system call"
+ ---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. It is used
+ to implement the "mboot" Tilera booter.
+
+ The name comes from the similarity to the exec system call.
+
+config COMPAT
+ bool "Support 32-bit TILE-Gx binaries in addition to 64-bit"
+ depends on TILEGX
+ select COMPAT_BINFMT_ELF
+ default y
+ ---help---
+ If enabled, the kernel will support running TILE-Gx binaries
+ that were built with the -m32 option.
+
+config SYSVIPC_COMPAT
+ def_bool y
+ depends on COMPAT && SYSVIPC
+
+# We do not currently support disabling HIGHMEM on tile64 and tilepro.
+config HIGHMEM
+ bool # "Support for more than 512 MB of RAM"
+ default !TILEGX
+ ---help---
+ Linux can use the full amount of RAM in the system by
+ default. However, the address space of TILE processors is
+ only 4 Gigabytes large. That means that, if you have a large
+ amount of physical memory, not all of it can be "permanently
+ mapped" by the kernel. The physical memory that's not
+ permanently mapped is called "high memory".
+
+ If you are compiling a kernel which will never run on a
+ machine with more than 512 MB total physical RAM, answer
+ "false" here. This will result in the kernel mapping all of
+ physical memory into the top 1 GB of virtual memory space.
+
+ If unsure, say "true".
+
+# We do not currently support disabling NUMA.
+config NUMA
+ bool # "NUMA Memory Allocation and Scheduler Support"
+ depends on SMP && DISCONTIGMEM
+ default y
+ ---help---
+ NUMA memory allocation is required for TILE processors
+ unless booting with memory striping enabled in the
+ hypervisor, or with only a single memory controller.
+ It is recommended that this option always be enabled.
+
+config NODES_SHIFT
+ int "Log base 2 of the max number of memory controllers"
+ default 2
+ depends on NEED_MULTIPLE_NODES
+ ---help---
+ By default, 2, i.e. 2^2 == 4 DDR2 controllers.
+ In a system with more controllers, this value should be raised.
+
+# Need 16MB areas to enable hugetlb
+# See build-time check in arch/tile/mm/init.c.
+config FORCE_MAX_ZONEORDER
+ int
+ default 9
+
+choice
+ depends on !TILEGX
+ prompt "Memory split" if EMBEDDED
+ default VMSPLIT_3G
+ ---help---
+ Select the desired split between kernel and user memory.
+
+ If the address range available to the kernel is less than the
+ physical memory installed, the remaining memory will be available
+ as "high memory". Accessing high memory is a little more costly
+ than low memory, as it needs to be mapped into the kernel first.
+ Note that increasing the kernel address space limits the range
+ available to user programs, making the address space there
+ tighter. Selecting anything other than the default 3G/1G split
+ will also likely make your kernel incompatible with binary-only
+ kernel modules.
+
+ If you are not absolutely sure what you are doing, leave this
+ option alone!
+
+ config VMSPLIT_375G
+ bool "3.75G/0.25G user/kernel split (no kernel networking)"
+ config VMSPLIT_35G
+ bool "3.5G/0.5G user/kernel split"
+ config VMSPLIT_3G
+ bool "3G/1G user/kernel split"
+ config VMSPLIT_3G_OPT
+ bool "3G/1G user/kernel split (for full 1G low memory)"
+ config VMSPLIT_2G
+ bool "2G/2G user/kernel split"
+ config VMSPLIT_1G
+ bool "1G/3G user/kernel split"
+endchoice
+
+config PAGE_OFFSET
+ hex
+ default 0xF0000000 if VMSPLIT_375G
+ default 0xE0000000 if VMSPLIT_35G
+ default 0xB0000000 if VMSPLIT_3G_OPT
+ default 0x80000000 if VMSPLIT_2G
+ default 0x40000000 if VMSPLIT_1G
+ default 0xC0000000
+
+source "mm/Kconfig"
+
+config CMDLINE_BOOL
+ bool "Built-in kernel command line"
+ default n
+ ---help---
+ Allow for specifying boot arguments to the kernel at
+ build time. On some systems (e.g. embedded ones), it is
+ necessary or convenient to provide some or all of the
+ kernel boot arguments with the kernel itself (that is,
+ to not rely on the boot loader to provide them.)
+
+ To compile command line arguments into the kernel,
+ set this option to 'Y', then fill in the
+ the boot arguments in CONFIG_CMDLINE.
+
+ Systems with fully functional boot loaders (e.g. mboot, or
+ if booting over PCI) should leave this option set to 'N'.
+
+config CMDLINE
+ string "Built-in kernel command string"
+ depends on CMDLINE_BOOL
+ default ""
+ ---help---
+ Enter arguments here that should be compiled into the kernel
+ image and used at boot time. If the boot loader provides a
+ command line at boot time, it is appended to this string to
+ form the full kernel command line, when the system boots.
+
+ However, you can use the CONFIG_CMDLINE_OVERRIDE option to
+ change this behavior.
+
+ In most cases, the command line (whether built-in or provided
+ by the boot loader) should specify the device for the root
+ file system.
+
+config CMDLINE_OVERRIDE
+ bool "Built-in command line overrides boot loader arguments"
+ default n
+ depends on CMDLINE_BOOL
+ ---help---
+ Set this option to 'Y' to have the kernel ignore the boot loader
+ command line, and use ONLY the built-in command line.
+
+ This is used to work around broken boot loaders. This should
+ be set to 'N' under normal conditions.
+
+config VMALLOC_RESERVE
+ hex
+ default 0x1000000
+
+config HARDWALL
+ bool "Hardwall support to allow access to user dynamic network"
+ default y
+
+endmenu # Tilera-specific configuration
+
+menu "Bus options"
+
+config NO_IOMEM
+ def_bool !PCI
+
+config NO_IOPORT
+ def_bool !PCI
+
+source "drivers/pci/Kconfig"
+
+source "drivers/pci/hotplug/Kconfig"
+
+endmenu
+
+menu "Executable file formats"
+
+# only elf supported
+config KCORE_ELF
+ def_bool y
+ depends on PROC_FS
+
+source "fs/Kconfig.binfmt"
+
+endmenu
+
+source "net/Kconfig"
+
+source "drivers/Kconfig"
+
+source "fs/Kconfig"
+
+source "arch/tile/Kconfig.debug"
+
+source "security/Kconfig"
+
+source "crypto/Kconfig"
+
+source "lib/Kconfig"