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Diffstat (limited to 'arch/ppc64/Kconfig')
| -rw-r--r-- | arch/ppc64/Kconfig | 423 |
1 files changed, 423 insertions, 0 deletions
diff --git a/arch/ppc64/Kconfig b/arch/ppc64/Kconfig new file mode 100644 index 000000000000..15c4a1455cae --- /dev/null +++ b/arch/ppc64/Kconfig @@ -0,0 +1,423 @@ +# +# 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 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 DISCONTIGMEM + bool "Discontiguous Memory Support" + depends on SMP && PPC_PSERIES + +config NUMA + bool "NUMA support" + depends on DISCONTIGMEM + +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 + +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 + + +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 + 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" |