kconfig

来自「linux 内核源代码」· 代码 · 共 1,327 行 · 第 1/3 页

config HARRIER
	bool
	depends on PRPMC800
	default y

config EPIC_SERIAL_MODE
	bool
	depends on 6xx && (LOPEC || SANDPOINT)
	default y

config MPC10X_BRIDGE
	bool
	depends on POWERPMC250 || LOPEC || SANDPOINT
	select PPC_INDIRECT_PCI
	default y

config MPC10X_OPENPIC
	bool
	depends on POWERPMC250 || LOPEC || SANDPOINT
	default y

config MPC10X_STORE_GATHERING
	bool "Enable MPC10x store gathering"
	depends on MPC10X_BRIDGE

config SANDPOINT_ENABLE_UART1
	bool "Enable DUART mode on Sandpoint"
	depends on SANDPOINT
	help
	  If this option is enabled then the MPC824x processor will run
	  in DUART mode instead of UART mode.

config HARRIER_STORE_GATHERING
	bool "Enable Harrier store gathering"
	depends on HARRIER

config MVME5100_IPMC761_PRESENT
	bool "MVME5100 configured with an IPMC761"
	depends on MVME5100
	select PPC_I8259

config SPRUCE_BAUD_33M
	bool "Spruce baud clock support"
	depends on SPRUCE

config PC_KEYBOARD
	bool "PC PS/2 style Keyboard"
	depends on 4xx || CPM2

config PPCBUG_NVRAM
	bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC
	default y if PPC_PREP

config SMP
	depends on PPC_STD_MMU
	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.  Note that the kernel does not currently
	  support SMP machines with 603/603e/603ev or PPC750 ("G3") processors
	  since they have inadequate hardware support for multiprocessor
	  operation.

	  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 single-processor machines.
	  On a single-processor machine, the kernel will run faster if you say
	  N here.

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

config IRQ_ALL_CPUS
	bool "Distribute interrupts on all CPUs by default"
	depends on SMP && !MV64360
	help
	  This option gives the kernel permission to distribute IRQs across
	  multiple CPUs.  Saying N here will route all IRQs to the first
	  CPU.  Generally saying Y is safe, although some problems have been
	  reported with SMP Power Macintoshes with this option enabled.

config NR_CPUS
	int "Maximum number of CPUs (2-32)"
	range 2 32
	depends on SMP
	default "4"

config HIGHMEM
	bool "High memory support"

config ARCH_POPULATES_NODE_MAP
	def_bool y

source kernel/Kconfig.hz
source kernel/Kconfig.preempt
source "mm/Kconfig"

source "fs/Kconfig.binfmt"

config PREP_RESIDUAL
	bool "Support for PReP Residual Data"
	depends on PPC_PREP
	help
	  Some PReP systems have residual data passed to the kernel by the
	  firmware.  This allows detection of memory size, devices present and
	  other useful pieces of information.  Sometimes this information is
	  not present or incorrect, in which case it could lead to the machine 
	  behaving incorrectly.  If this happens, either disable PREP_RESIDUAL
	  or pass the 'noresidual' option to the kernel.

	  If you are running a PReP system, say Y here, otherwise say N.

config PROC_PREPRESIDUAL
	bool "Support for reading of PReP Residual Data in /proc"
	depends on PREP_RESIDUAL && PROC_FS
	help
	  Enabling this option will create a /proc/residual file which allows
	  you to get at the residual data on PReP systems.  You will need a tool
	  (lsresidual) to parse it.  If you aren't on a PReP system, you don't
	  want this.

config CMDLINE_BOOL
	bool "Default bootloader kernel arguments"

config CMDLINE
	string "Initial kernel command string"
	depends on CMDLINE_BOOL
	default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
	help
	  On some platforms, there is currently no way for the boot loader to
	  pass arguments to the kernel. For these platforms, you can supply
	  some command-line options at build time by entering them here.  In
	  most cases you will need to specify the root device here.

if BROKEN
source kernel/power/Kconfig
endif

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.

endmenu

config ISA_DMA_API
	bool
	default y

menu "Bus options"

config ISA
	bool "Support for ISA-bus hardware"
	depends on PPC_PREP
	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.  If you have an Apple machine, say N here; if you
	  have an IBM RS/6000 or pSeries machine or a PReP machine, say Y.  If
	  you have an embedded board, consult your board documentation.

config ZONE_DMA
	bool
	default y

config GENERIC_ISA_DMA
	bool
	depends on 6xx && !CPM2
	default y

config PPC_I8259
	bool
	default y if 85xx || PPC_PREP
	default n

config PPC_INDIRECT_PCI
	bool
	depends on PCI
	default y if 40x || 44x || 85xx || 83xx || PPC_PREP
	default n

config EISA
	bool
	help
	  The Extended Industry Standard Architecture (EISA) bus is a bus
	  architecture used on some older intel-based PCs.

config SBUS
	bool

# Yes MCA RS/6000s exist but Linux-PPC does not currently support any
config MCA
	bool

config PCI
	bool "PCI support" if 40x || CPM2 || 83xx || 85xx || PPC_MPC52xx
	default y if !40x && !CPM2 && !8xx && !83xx && !85xx
	default PCI_QSPAN if !4xx && !CPM2 && 8xx
	help
	  Find out whether your system includes a PCI bus. PCI is the name of
	  a bus system, i.e. the way the CPU talks to the other stuff inside
	  your box.  If you say Y here, the kernel will include drivers and
	  infrastructure code to support PCI bus devices.

config PCI_DOMAINS
	def_bool PCI

config PCI_SYSCALL
	def_bool PCI

config MPC83xx_PCI2
	bool "Support for 2nd PCI host controller"
	depends on PCI && MPC834x
	default y if MPC834x_SYS

config PCI_QSPAN
	bool "QSpan PCI"
	depends on !4xx && !CPM2 && 8xx
	select PPC_I8259
	help
	  Say Y here if you have a system based on a Motorola 8xx-series
	  embedded processor with a QSPAN PCI interface, otherwise say N.

config PCI_8260
	bool
	depends on PCI && 8260
	select PPC_INDIRECT_PCI
	default y

config 8260_PCI9
	bool "Enable workaround for MPC826x erratum PCI 9"
	depends on PCI_8260 && !ADS8272
	default y

choice
	prompt "IDMA channel for PCI 9 workaround"
	depends on 8260_PCI9

config 8260_PCI9_IDMA1
	bool "IDMA1"

config 8260_PCI9_IDMA2
	bool "IDMA2"

config 8260_PCI9_IDMA3
	bool "IDMA3"

config 8260_PCI9_IDMA4
	bool "IDMA4"

endchoice

source "drivers/pci/Kconfig"

source "drivers/pcmcia/Kconfig"

config RAPIDIO
	bool "RapidIO support" if MPC8540 || MPC8560
	help
	  If you say Y here, the kernel will include drivers and
	  infrastructure code to support RapidIO interconnect devices.

source "drivers/rapidio/Kconfig"

endmenu

menu "Advanced setup"

config ADVANCED_OPTIONS
	bool "Prompt for advanced kernel configuration options"
	help
	  This option will enable prompting for a variety of advanced kernel
	  configuration options.  These options can cause the kernel to not
	  work if they are set incorrectly, but can be used to optimize certain
	  aspects of kernel memory management.

	  Unless you know what you are doing, say N here.

comment "Default settings for advanced configuration options are used"
	depends on !ADVANCED_OPTIONS

config HIGHMEM_START_BOOL
	bool "Set high memory pool address"
	depends on ADVANCED_OPTIONS && HIGHMEM
	help
	  This option allows you to set the base address of the kernel virtual
	  area used to map high memory pages.  This can be useful in
	  optimizing the layout of kernel virtual memory.

	  Say N here unless you know what you are doing.

config HIGHMEM_START
	hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL
	default "0xfe000000"

config LOWMEM_SIZE_BOOL
	bool "Set maximum low memory"
	depends on ADVANCED_OPTIONS
	help
	  This option allows you to set the maximum amount of memory which
	  will be used as "low memory", that is, memory which the kernel can
	  access directly, without having to set up a kernel virtual mapping.
	  This can be useful in optimizing the layout of kernel virtual
	  memory.

	  Say N here unless you know what you are doing.

config LOWMEM_SIZE
	hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
	default "0x30000000"

config KERNEL_START_BOOL
	bool "Set custom kernel base address"
	depends on ADVANCED_OPTIONS
	help
	  This option allows you to set the kernel virtual address at which
	  the kernel will map low memory (the kernel image will be linked at
	  this address).  This can be useful in optimizing the virtual memory
	  layout of the system.

	  Say N here unless you know what you are doing.

config KERNEL_START
	hex "Virtual address of kernel base" if KERNEL_START_BOOL
	default "0xc0000000"

config TASK_SIZE_BOOL
	bool "Set custom user task size"
	depends on ADVANCED_OPTIONS
	help
	  This option allows you to set the amount of virtual address space
	  allocated to user tasks.  This can be useful in optimizing the
	  virtual memory layout of the system.

	  Say N here unless you know what you are doing.

config TASK_SIZE
	hex "Size of user task space" if TASK_SIZE_BOOL
	default "0x80000000"

config CONSISTENT_START_BOOL
	bool "Set custom consistent memory pool address"
	depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
	help
	  This option allows you to set the base virtual address
	  of the consistent memory pool.  This pool of virtual
	  memory is used to make consistent memory allocations.

config CONSISTENT_START
	hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL
	default "0xff100000" if NOT_COHERENT_CACHE

config CONSISTENT_SIZE_BOOL
	bool "Set custom consistent memory pool size"
	depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
	help
	  This option allows you to set the size of the
	  consistent memory pool.  This pool of virtual memory
	  is used to make consistent memory allocations.

config CONSISTENT_SIZE
	hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
	default "0x00200000" if NOT_COHERENT_CACHE

config BOOT_LOAD_BOOL
	bool "Set the boot link/load address"
	depends on ADVANCED_OPTIONS && !PPC_PREP
	help
	  This option allows you to set the initial load address of the zImage
	  or zImage.initrd file.  This can be useful if you are on a board
	  which has a small amount of memory.

	  Say N here unless you know what you are doing.

config BOOT_LOAD
	hex "Link/load address for booting" if BOOT_LOAD_BOOL
	default "0x00400000" if 40x || 8xx || 8260
	default "0x01000000" if 44x
	default "0x00800000"

config PIN_TLB
	bool "Pinned Kernel TLBs (860 ONLY)"
	depends on ADVANCED_OPTIONS && 8xx

config PPC_LIB_RHEAP
	bool

endmenu

source "net/Kconfig"

source "drivers/Kconfig"

source "fs/Kconfig"

source "arch/ppc/8xx_io/Kconfig"

source "arch/ppc/8260_io/Kconfig"


menu "IBM 40x options"
	depends on 40x

config SERIAL_SICC
	bool "SICC Serial port"
	depends on STB03xxx

config UART1_DFLT_CONSOLE
	bool
	depends on SERIAL_SICC && UART0_TTYS1
	default y

config SERIAL_SICC_CONSOLE
	bool
	depends on SERIAL_SICC && UART0_TTYS1
	default y

endmenu

source "lib/Kconfig"

source "kernel/Kconfig.instrumentation"

source "arch/ppc/Kconfig.debug"

source "security/Kconfig"

source "crypto/Kconfig"