| # $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 |
| |
| 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 && 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" |
| |
| menu "Instrumentation Support" |
| |
| source "arch/sparc64/oprofile/Kconfig" |
| |
| config KPROBES |
| bool "Kprobes (EXPERIMENTAL)" |
| depends on KALLSYMS && EXPERIMENTAL && MODULES |
| help |
| Kprobes allows you to trap at almost any kernel address and |
| execute a callback function. register_kprobe() establishes |
| a probepoint and specifies the callback. Kprobes is useful |
| for kernel debugging, non-intrusive instrumentation and testing. |
| If in doubt, say "N". |
| endmenu |
| |
| source "arch/sparc64/Kconfig.debug" |
| |
| source "security/Kconfig" |
| |
| source "crypto/Kconfig" |
| |
| source "lib/Kconfig" |