Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

# $Id: config.in,v 1.158 2002/01/24 22:14:44 davem Exp $

# For a description of the syntax of this configuration file,

# see the Configure script.

#

mainmenu "Linux/UltraSPARC Kernel Configuration"

config SPARC

        bool

        default y

config SPARC64

        bool

        default y

        help

          SPARC is a family of RISC microprocessors designed and marketed by

          Sun Microsystems, incorporated.  This port covers the newer 64-bit

          UltraSPARC.  The UltraLinux project maintains both the SPARC32 and

          SPARC64 ports; its web page is available at

          .

config GENERIC_TIME

        bool

        default y

config GENERIC_CMOS_UPDATE

        bool

        default y

config GENERIC_CLOCKEVENTS

        bool

        default y

config 64BIT

        def_bool y

config MMU

        bool

        default y

config QUICKLIST

        bool

        default y

config STACKTRACE_SUPPORT

        bool

        default y

config LOCKDEP_SUPPORT

        bool

        default y

config ARCH_MAY_HAVE_PC_FDC

        bool

        default y

config ARCH_HAS_ILOG2_U32

        bool

        default n

config ARCH_HAS_ILOG2_U64

        bool

        default n

config AUDIT_ARCH

        bool

        default y

config ARCH_NO_VIRT_TO_BUS

        def_bool y

config OF

        def_bool y

config GENERIC_HARDIRQS_NO__DO_IRQ

        bool

        def_bool y

choice

        prompt "Kernel page size"

        default SPARC64_PAGE_SIZE_8KB

config SPARC64_PAGE_SIZE_8KB

        bool "8KB"

        help

          This lets you select the page size of the kernel.

          8KB and 64KB work quite well, since Sparc ELF sections

          provide for up to 64KB alignment.

          Therefore, 512KB and 4MB are for expert hackers only.

          If you don't know what to do, choose 8KB.

config SPARC64_PAGE_SIZE_64KB

        bool "64KB"

config SPARC64_PAGE_SIZE_512KB

        bool "512KB"

config SPARC64_PAGE_SIZE_4MB

        bool "4MB"

endchoice

config SECCOMP

        bool "Enable seccomp to safely compute untrusted bytecode"

        depends on PROC_FS

        default y

        help

          This kernel feature is useful for number crunching applications

          that may need to compute untrusted bytecode during their

          execution. By using pipes or other transports made available to

          the process as file descriptors supporting the read/write

          syscalls, it's possible to isolate those applications in

          their own address space using seccomp. Once seccomp is

          enabled via /proc//seccomp, it cannot be disabled

          and the task is only allowed to execute a few safe syscalls

          defined by each seccomp mode.

          If unsure, say Y. Only embedded should say N here.

source kernel/Kconfig.hz

config HOTPLUG_CPU

        bool "Support for hot-pluggable CPUs"

        depends on SMP

        select HOTPLUG

        ---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.

source "init/Kconfig"

config SYSVIPC_COMPAT

        bool

        depends on COMPAT && SYSVIPC

        default y

config GENERIC_HARDIRQS

        bool

        default y

menu "General machine setup"

source "kernel/time/Kconfig"

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

          machines, but will use only one CPU of a multiprocessor machine. If

          you say Y here, the kernel will run on many, but not all,

          singleprocessor machines. On a singleprocessor machine, the kernel

          will run faster if you say N here.

          People using multiprocessor machines who say Y here should also say

          Y to "Enhanced Real Time Clock Support", below. The "Advanced Power

          Management" code will be disabled if you say Y here.

          See also the ,

           and the SMP-HOWTO available at

          .

          If you don't know what to do here, say N.

config NR_CPUS

        int "Maximum number of CPUs (2-1024)"

        range 2 1024

        depends on SMP

        default "64"

source "drivers/cpufreq/Kconfig"

config US3_FREQ

        tristate "UltraSPARC-III CPU Frequency driver"

        depends on CPU_FREQ

        select CPU_FREQ_TABLE

        help

          This adds the CPUFreq driver for UltraSPARC-III processors.

          For details, take a look at .

          If in doubt, say N.

config US2E_FREQ

        tristate "UltraSPARC-IIe CPU Frequency driver"

        depends on CPU_FREQ

        select CPU_FREQ_TABLE

        help

          This adds the CPUFreq driver for UltraSPARC-IIe processors.

          For details, take a look at .

          If in doubt, say N.

# Global things across all Sun machines.

config RWSEM_GENERIC_SPINLOCK

        bool

config RWSEM_XCHGADD_ALGORITHM

        bool

        default y

config GENERIC_FIND_NEXT_BIT

        bool

        default y

config GENERIC_HWEIGHT

        bool

        default y if !ULTRA_HAS_POPULATION_COUNT

config GENERIC_CALIBRATE_DELAY

        bool

        default y

choice

        prompt "SPARC64 Huge TLB Page Size"

        depends on HUGETLB_PAGE

        default HUGETLB_PAGE_SIZE_4MB

config HUGETLB_PAGE_SIZE_4MB

        bool "4MB"

config HUGETLB_PAGE_SIZE_512K

        depends on !SPARC64_PAGE_SIZE_4MB && !SPARC64_PAGE_SIZE_512KB

        bool "512K"

config HUGETLB_PAGE_SIZE_64K

        depends on !SPARC64_PAGE_SIZE_4MB && !SPARC64_PAGE_SIZE_512KB && !SPARC64_PAGE_SIZE_64KB

        bool "64K"

endchoice

endmenu

config ARCH_SELECT_MEMORY_MODEL

        def_bool y

config ARCH_SPARSEMEM_ENABLE

        def_bool y

        select SPARSEMEM_VMEMMAP_ENABLE

config ARCH_SPARSEMEM_DEFAULT

        def_bool y

source "mm/Kconfig"

config ISA

        bool

        help

          Find out whether you have ISA slots on your motherboard.  ISA is the

          name of a bus system, i.e. the way the CPU talks to the other stuff

          inside your box.  Other bus systems are PCI, EISA, MicroChannel

          (MCA) or VESA.  ISA is an older system, now being displaced by PCI;

          newer boards don't support it.  If you have ISA, say Y, otherwise N.

config ISAPNP

        bool

        help

          Say Y here if you would like support for ISA Plug and Play devices.

          Some information is in .

          To compile this driver as a module, choose M here: the

          module will be called isapnp.

          If unsure, say Y.

config EISA

        bool

        ---help---

          The Extended Industry Standard Architecture (EISA) bus was

          developed as an open alternative to the IBM MicroChannel bus.

          The EISA bus provided some of the features of the IBM MicroChannel

          bus while maintaining backward compatibility with cards made for

          the older ISA bus.  The EISA bus saw limited use between 1988 and

          1995 when it was made obsolete by the PCI bus.

          Say Y here if you are building a kernel for an EISA-based machine.

          Otherwise, say N.

config MCA

        bool

        help

          MicroChannel Architecture is found in some IBM PS/2 machines and

          laptops.  It is a bus system similar to PCI or ISA. See

           (and especially the web page given

          there) before attempting to build an MCA bus kernel.

config PCMCIA

        tristate

        ---help---

          Say Y here if you want to attach PCMCIA- or PC-cards to your Linux

          computer.  These are credit-card size devices such as network cards,

          modems or hard drives often used with laptops computers.  There are

          actually two varieties of these cards: the older 16 bit PCMCIA cards

          and the newer 32 bit CardBus cards.  If you want to use CardBus

          cards, you need to say Y here and also to "CardBus support" below.

          To use your PC-cards, you will need supporting software from David

          Hinds' pcmcia-cs package (see the file 

          for location).  Please also read the PCMCIA-HOWTO, available from

          .

          To compile this driver as modules, choose M here: the

          modules will be called pcmcia_core and ds.

config SBUS

        bool

        default y

config SBUSCHAR

        bool

        default y

config SUN_AUXIO

        bool

        default y

config SUN_IO

        bool

        default y

config SUN_LDOMS

        bool "Sun Logical Domains support"

        help

          Say Y here is you want to support virtual devices via

          Logical Domains.

config PCI

        bool "PCI support"

        select ARCH_SUPPORTS_MSI

        help

          Find out whether you have a PCI motherboard. PCI is the name of a

          bus system, i.e. the way the CPU talks to the other stuff inside

          your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or

          VESA. If you have PCI, say Y, otherwise N.

          The PCI-HOWTO, available from

          , contains valuable

          information about which PCI hardware does work under Linux and which

          doesn't.

config PCI_DOMAINS

        def_bool PCI

config PCI_SYSCALL

        def_bool PCI

source "drivers/pci/Kconfig"

config SUN_OPENPROMFS

        tristate "Openprom tree appears in /proc/openprom"

        help

          If you say Y, the OpenPROM device tree will be available as a

          virtual file system, which you can mount to /proc/openprom by "mount

          -t openpromfs none /proc/openprom".

          To compile the /proc/openprom support as a module, choose M here: the

          module will be called openpromfs.  If unsure, choose M.

config SPARC32_COMPAT

        bool "Kernel support for Linux/Sparc 32bit binary compatibility"

        help

          This allows you to run 32-bit binaries on your Ultra.

          Everybody wants this; say Y.

config COMPAT

        bool

        depends on SPARC32_COMPAT

        default y

config BINFMT_ELF32

        bool "Kernel support for 32-bit ELF binaries"

        depends on SPARC32_COMPAT

        help

          This allows you to run 32-bit Linux/ELF binaries on your Ultra.

          Everybody wants this; say Y.

config BINFMT_AOUT32

        bool "Kernel support for 32-bit (ie. SunOS) a.out binaries"

        depends on SPARC32_COMPAT

        help

          This allows you to run 32-bit a.out format binaries on your Ultra.

          If you want to run SunOS binaries (see SunOS binary emulation below)

          or other a.out binaries, say Y. If unsure, say N.

menu "Executable file formats"

source "fs/Kconfig.binfmt"

config SUNOS_EMUL

        bool "SunOS binary emulation"

        depends on BINFMT_AOUT32

        help

          This allows you to run most SunOS binaries.  If you want to do this,

          say Y here and place appropriate files in /usr/gnemul/sunos. See

           for more information.  If you

          want to run SunOS binaries on an Ultra you must also say Y to

          "Kernel support for 32-bit a.out binaries" above.

config SOLARIS_EMUL

        tristate "Solaris binary emulation (EXPERIMENTAL)"

        depends on SPARC32_COMPAT && NET && EXPERIMENTAL

        help

          This is experimental code which will enable you to run (many)

          Solaris binaries on your SPARC Linux machine.

          To compile this code as a module, choose M here: the

          module will be called solaris.

endmenu

config SCHED_SMT

        bool "SMT (Hyperthreading) scheduler support"

        depends on SMP

        default y

        help

          SMT scheduler support improves the CPU scheduler's decision making

          when dealing with UltraSPARC cpus at a cost of slightly increased

          overhead in some places. If unsure say N here.

config SCHED_MC

        bool "Multi-core scheduler support"

        depends on SMP

        default y

        help

          Multi-core scheduler support improves the CPU scheduler's decision

          making when dealing with multi-core CPU chips at a cost of slightly

          increased overhead in some places. If unsure say N here.

source "kernel/Kconfig.preempt"

config CMDLINE_BOOL

        bool "Default bootloader kernel arguments"

config CMDLINE

        string "Initial kernel command string"

        depends on CMDLINE_BOOL

        default "console=ttyS0,9600 root=/dev/sda1"

        help

          Say Y here if you want to be able to pass default arguments to

          the kernel. This will be overridden by the bootloader, if you

          use one (such as SILO). This is most useful if you want to boot

          a kernel from TFTP, and want default options to be available

          with having them passed on the command line.

          NOTE: This option WILL override the PROM bootargs setting!

source "net/Kconfig"

source "drivers/Kconfig"

source "drivers/sbus/char/Kconfig"

source "fs/Kconfig"

source "kernel/Kconfig.instrumentation"

source "arch/sparc64/Kconfig.debug"

source "security/Kconfig"

source "crypto/Kconfig"

source "lib/Kconfig"