| # |
| # For a description of the syntax of this configuration file, |
| # see Documentation/kbuild/kconfig-language.txt. |
| # |
| |
| config 64BIT |
| def_bool y |
| |
| config MMU |
| bool |
| default y |
| |
| config UID16 |
| bool |
| |
| config RWSEM_GENERIC_SPINLOCK |
| bool |
| |
| config RWSEM_XCHGADD_ALGORITHM |
| bool |
| default y |
| |
| config GENERIC_CALIBRATE_DELAY |
| bool |
| default y |
| |
| config GENERIC_ISA_DMA |
| bool |
| default y |
| |
| config HAVE_DEC_LOCK |
| bool |
| default y |
| |
| config EARLY_PRINTK |
| bool |
| default y |
| |
| config COMPAT |
| bool |
| default y |
| |
| config SCHED_NO_NO_OMIT_FRAME_POINTER |
| bool |
| default y |
| |
| # We optimistically allocate largepages from the VM, so make the limit |
| # large enough (16MB). This badly named config option is actually |
| # max order + 1 |
| config FORCE_MAX_ZONEORDER |
| int |
| default "13" |
| |
| source "init/Kconfig" |
| |
| config SYSVIPC_COMPAT |
| bool |
| depends on COMPAT && SYSVIPC |
| default y |
| |
| menu "Platform support" |
| |
| choice |
| prompt "Platform Type" |
| default PPC_MULTIPLATFORM |
| |
| config PPC_ISERIES |
| bool "IBM Legacy iSeries" |
| |
| config PPC_MULTIPLATFORM |
| bool "Generic" |
| |
| endchoice |
| |
| config PPC_PSERIES |
| depends on PPC_MULTIPLATFORM |
| bool " IBM pSeries & new iSeries" |
| default y |
| |
| config PPC_PMAC |
| depends on PPC_MULTIPLATFORM |
| bool " Apple G5 based machines" |
| default y |
| select U3_DART |
| |
| config PPC_MAPLE |
| depends on PPC_MULTIPLATFORM |
| bool " Maple 970FX Evaluation Board" |
| select U3_DART |
| select MPIC_BROKEN_U3 |
| default n |
| help |
| This option enables support for the Maple 970FX Evaluation Board. |
| For more informations, refer to <http://www.970eval.com> |
| |
| config PPC |
| bool |
| default y |
| |
| config PPC64 |
| bool |
| default y |
| |
| config PPC_OF |
| depends on PPC_MULTIPLATFORM |
| bool |
| default y |
| |
| # VMX is pSeries only for now until somebody writes the iSeries |
| # exception vectors for it |
| config ALTIVEC |
| bool "Support for VMX (Altivec) vector unit" |
| depends on PPC_MULTIPLATFORM |
| default y |
| |
| config PPC_SPLPAR |
| depends on PPC_PSERIES |
| bool "Support for shared-processor logical partitions" |
| default n |
| help |
| Enabling this option will make the kernel run more efficiently |
| on logically-partitioned pSeries systems which use shared |
| processors, that is, which share physical processors between |
| two or more partitions. |
| |
| config IBMVIO |
| depends on PPC_PSERIES || PPC_ISERIES |
| bool |
| default y |
| |
| config U3_DART |
| bool |
| depends on PPC_MULTIPLATFORM |
| default n |
| |
| config MPIC_BROKEN_U3 |
| bool |
| depends on PPC_MAPLE |
| default y |
| |
| config PPC_PMAC64 |
| bool |
| depends on PPC_PMAC |
| default y |
| |
| config BOOTX_TEXT |
| bool "Support for early boot text console" |
| depends PPC_OF |
| help |
| Say Y here to see progress messages from the boot firmware in text |
| mode. Requires an Open Firmware compatible video card. |
| |
| config POWER4_ONLY |
| bool "Optimize for POWER4" |
| default n |
| ---help--- |
| Cause the compiler to optimize for POWER4 processors. The resulting |
| binary will not work on POWER3 or RS64 processors when compiled with |
| binutils 2.15 or later. |
| |
| config IOMMU_VMERGE |
| bool "Enable IOMMU virtual merging (EXPERIMENTAL)" |
| depends on EXPERIMENTAL |
| default n |
| help |
| Cause IO segments sent to a device for DMA to be merged virtually |
| by the IOMMU when they happen to have been allocated contiguously. |
| This doesn't add pressure to the IOMMU allocator. However, some |
| drivers don't support getting large merged segments coming back |
| from *_map_sg(). Say Y if you know the drivers you are using are |
| properly handling this case. |
| |
| 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 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 Y. |
| |
| config NR_CPUS |
| int "Maximum number of CPUs (2-128)" |
| range 2 128 |
| depends on SMP |
| default "32" |
| |
| config HMT |
| bool "Hardware multithreading" |
| depends on SMP && PPC_PSERIES && BROKEN |
| help |
| This option enables hardware multithreading on RS64 cpus. |
| pSeries systems p620 and p660 have such a cpu type. |
| |
| config ARCH_SELECT_MEMORY_MODEL |
| def_bool y |
| |
| config ARCH_FLATMEM_ENABLE |
| def_bool y |
| depends on !NUMA |
| |
| config ARCH_DISCONTIGMEM_ENABLE |
| def_bool y |
| depends on SMP && PPC_PSERIES |
| |
| config ARCH_DISCONTIGMEM_DEFAULT |
| def_bool y |
| depends on ARCH_DISCONTIGMEM_ENABLE |
| |
| config ARCH_FLATMEM_ENABLE |
| def_bool y |
| |
| config ARCH_SPARSEMEM_ENABLE |
| def_bool y |
| depends on ARCH_DISCONTIGMEM_ENABLE |
| |
| source "mm/Kconfig" |
| |
| config HAVE_ARCH_EARLY_PFN_TO_NID |
| def_bool y |
| depends on NEED_MULTIPLE_NODES |
| |
| # Some NUMA nodes have memory ranges that span |
| # other nodes. Even though a pfn is valid and |
| # between a node's start and end pfns, it may not |
| # reside on that node. |
| # |
| # This is a relatively temporary hack that should |
| # be able to go away when sparsemem is fully in |
| # place |
| config NODES_SPAN_OTHER_NODES |
| def_bool y |
| depends on NEED_MULTIPLE_NODES |
| |
| config NUMA |
| bool "NUMA support" |
| default y if DISCONTIGMEM || SPARSEMEM |
| |
| config SCHED_SMT |
| bool "SMT (Hyperthreading) scheduler support" |
| depends on SMP |
| default off |
| help |
| SMT scheduler support improves the CPU scheduler's decision making |
| when dealing with POWER5 cpus at a cost of slightly increased |
| overhead in some places. If unsure say N here. |
| |
| 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. |
| |
| Say Y here if you are building a kernel for a desktop, embedded |
| or real-time system. Say N if you are unsure. |
| |
| config PREEMPT_BKL |
| bool "Preempt The Big Kernel Lock" |
| depends on PREEMPT |
| default y |
| help |
| This option reduces the latency of the kernel by making the |
| big kernel lock preemptible. |
| |
| Say Y here if you are building a kernel for a desktop system. |
| Say N if you are unsure. |
| |
| config EEH |
| bool "PCI Extended Error Handling (EEH)" if EMBEDDED |
| depends on PPC_PSERIES |
| default y if !EMBEDDED |
| |
| # |
| # Use the generic interrupt handling code in kernel/irq/: |
| # |
| config GENERIC_HARDIRQS |
| bool |
| default y |
| |
| config MSCHUNKS |
| bool |
| depends on PPC_ISERIES |
| default y |
| |
| |
| config PPC_RTAS |
| bool |
| depends on PPC_PSERIES |
| default y |
| |
| config RTAS_PROC |
| bool "Proc interface to RTAS" |
| depends on PPC_RTAS |
| default y |
| |
| config RTAS_FLASH |
| tristate "Firmware flash interface" |
| depends on RTAS_PROC |
| |
| config SCANLOG |
| tristate "Scanlog dump interface" |
| depends on RTAS_PROC && PPC_PSERIES |
| |
| config LPARCFG |
| tristate "LPAR Configuration Data" |
| depends on PPC_PSERIES || PPC_ISERIES |
| help |
| Provide system capacity information via human readable |
| <key word>=<value> pairs through a /proc/ppc64/lparcfg interface. |
| |
| 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 "General setup" |
| |
| 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. 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 SBUS |
| bool |
| |
| config MCA |
| bool |
| |
| config EISA |
| bool |
| |
| config PCI |
| bool "support for PCI devices" if (EMBEDDED && PPC_ISERIES) |
| default y |
| 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 |
| bool |
| default PCI |
| |
| source "fs/Kconfig.binfmt" |
| |
| source "drivers/pci/Kconfig" |
| |
| config HOTPLUG_CPU |
| bool "Support for hot-pluggable CPUs" |
| depends on SMP && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC) |
| select HOTPLUG |
| ---help--- |
| Say Y here to be able to turn CPUs off and on. |
| |
| Say N if you are unsure. |
| |
| source "drivers/pcmcia/Kconfig" |
| |
| source "drivers/pci/hotplug/Kconfig" |
| |
| config PROC_DEVICETREE |
| bool "Support for Open Firmware device tree in /proc" |
| depends on !PPC_ISERIES |
| help |
| This option adds a device-tree directory under /proc which contains |
| an image of the device tree that the kernel copies from Open |
| Firmware. If unsure, say Y here. |
| |
| config CMDLINE_BOOL |
| bool "Default bootloader kernel arguments" |
| depends on !PPC_ISERIES |
| |
| 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. |
| |
| endmenu |
| |
| source "drivers/Kconfig" |
| |
| source "fs/Kconfig" |
| |
| menu "iSeries device drivers" |
| depends on PPC_ISERIES |
| |
| config VIOCONS |
| tristate "iSeries Virtual Console Support" |
| |
| config VIODASD |
| tristate "iSeries Virtual I/O disk support" |
| help |
| If you are running on an iSeries system and you want to use |
| virtual disks created and managed by OS/400, say Y. |
| |
| config VIOCD |
| tristate "iSeries Virtual I/O CD support" |
| help |
| If you are running Linux on an IBM iSeries system and you want to |
| read a CD drive owned by OS/400, say Y here. |
| |
| config VIOTAPE |
| tristate "iSeries Virtual Tape Support" |
| help |
| If you are running Linux on an iSeries system and you want Linux |
| to read and/or write a tape drive owned by OS/400, say Y here. |
| |
| endmenu |
| |
| config VIOPATH |
| bool |
| depends on VIOCONS || VIODASD || VIOCD || VIOTAPE || VETH |
| default y |
| |
| source "arch/ppc64/oprofile/Kconfig" |
| |
| source "arch/ppc64/Kconfig.debug" |
| |
| source "security/Kconfig" |
| |
| config KEYS_COMPAT |
| bool |
| depends on COMPAT && KEYS |
| default y |
| |
| source "crypto/Kconfig" |
| |
| source "lib/Kconfig" |
