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
          <http://www.ultralinux.org/>.

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/<pid>/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 <file:Documentation/smp.txt>,
          <file:Documentation/nmi_watchdog.txt> and 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 (2-1024)"
        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 <file:Documentation/cpu-freq>.

          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 <file:Documentation/cpu-freq>.

          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 <file:Documentation/isapnp.txt>.

          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
          <file:Documentation/mca.txt> (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 <file:Documentation/Changes>
          for location).  Please also read the PCMCIA-HOWTO, available from
          <http://www.tldp.org/docs.html#howto>.

          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
          <http://www.tldp.org/docs.html#howto>, 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
          <http://www.ultralinux.org/faq.html> 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"