kconfig
来自「Linux Kernel 2.6.9 for OMAP1710」· 代码 · 共 393 行
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## For a description of the syntax of this configuration file,# see Documentation/kbuild/kconfig-language.txt.#mainmenu "IA-64 Linux Kernel Configuration"source "init/Kconfig"menu "Processor type and features"config IA64 bool 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 default yconfig MMU bool default yconfig RWSEM_XCHGADD_ALGORITHM bool default yconfig TIME_INTERPOLATION bool default yconfig EFI bool default yconfig GENERIC_IOMAP bool default ychoice prompt "System type" default IA64_GENERICconfig IA64_GENERIC bool "generic" select NUMA select ACPI_NUMA select VIRTUAL_MEM_MAP select DISCONTIGMEM 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 HP-zx1/sx1000 For HP systems SGI-SN2 For SGI Altix 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"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_SGI_SN2 bool "SGI-SN2" 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_HP_SIM bool "Ski-simulator"endchoicechoice prompt "Processor type" default ITANIUMconfig 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.endchoicechoice prompt "Kernel page size" default IA64_PAGE_SIZE_16KBconfig 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"endchoiceconfig IA64_BRL_EMU bool depends on ITANIUM default yconfig ITANIUM_BSTEP_SPECIFIC bool "Itanium B-step specific code" depends on ITANIUM help Select this option to build a kernel for an Itanium prototype system with a B-step CPU. You have a B-step CPU if the "revision" field in /proc/cpuinfo has a value in the range from 1 to 4.# align cache-sensitive data to 128 bytesconfig IA64_L1_CACHE_SHIFT int default "7" if MCKINLEY default "6" if ITANIUM# align cache-sensitive data to 64 bytesconfig NUMA bool "NUMA support" depends on !IA64_HP_SIM default y if IA64_SGI_SN2 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 VIRTUAL_MEM_MAP bool "Virtual mem map" 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 DISCONTIGMEM bool "Discontiguous memory support" depends on (IA64_DIG || IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1) && NUMA && VIRTUAL_MEM_MAP default y if (IA64_SGI_SN2 || IA64_GENERIC) && NUMA 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 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 yconfig IA64_SGI_SN_SIM bool "SGI Medusa Simulator Support" depends on IA64_SGI_SN2 help If you are compiling a kernel that will run under SGI's IA-64 simulator (Medusa) then say Y, otherwise say N.config FORCE_MAX_ZONEORDER int default "18"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 <file:Documentation/smp.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 (2-512)" range 2 512 depends on SMP default "64" 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 (EXPERIMENTAL)" depends on SMP && HOTPLUG && EXPERIMENTAL 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 PREEMPT bool "Preemptible Kernel" help This option reduces the latency of the kernel when reacting to real-time or interactive events by allowing a low priority process to be preempted even if it is in kernel mode executing a system call. This allows applications to run more reliably even when the system is under load. Say Y here if you are building a kernel for a desktop, embedded or real-time system. Say N if you are unsure.config HAVE_DEC_LOCK bool depends on (SMP || PREEMPT) default yconfig IA32_SUPPORT bool "Support for Linux/x86 binaries" help IA-64 processors can execute IA-32 (X86) instructions. By saying Y here, the kernel will include IA-32 system call emulation support which makes it possible to transparently run IA-32 Linux binaries on an IA-64 Linux system. If in doubt, say Y.config COMPAT bool depends on IA32_SUPPORT default yconfig 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.source "drivers/firmware/Kconfig"source "fs/Kconfig.binfmt"endmenumenu "Power management and ACPI"config PM bool "Power Management support" depends on IA64_GENERIC || IA64_DIG || IA64_HP_ZX1 default y help "Power Management" means that parts of your computer are shut off or put into a power conserving "sleep" mode if they are not being used. There are two competing standards for doing this: APM and ACPI. If you want to use either one, say Y here and then also to the requisite support below. Power Management is most important for battery powered laptop computers; if you have a laptop, check out the Linux Laptop home page on the WWW at <http://www.linux-on-laptops.com/> and the Battery Powered Linux mini-HOWTO, available from <http://www.tldp.org/docs.html#howto>. Note that, even if you say N here, Linux on the x86 architecture will issue the hlt instruction if nothing is to be done, thereby sending the processor to sleep and saving power.config ACPI bool depends on !IA64_HP_SIM default yif !IA64_HP_SIMsource "drivers/acpi/Kconfig"endifendmenuif !IA64_HP_SIMmenu "Bus options (PCI, PCMCIA)"config PCI bool "PCI support" 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 bool default PCIsource "drivers/pci/Kconfig"source "drivers/pci/hotplug/Kconfig"source "drivers/pcmcia/Kconfig"endmenuendifsource "drivers/Kconfig"source "fs/Kconfig"source "lib/Kconfig"source "arch/ia64/hp/sim/Kconfig"source "arch/ia64/oprofile/Kconfig"source "arch/ia64/Kconfig.debug"source "security/Kconfig"source "crypto/Kconfig"⌨️ 快捷键说明
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