| source "arch/powerpc/platforms/Kconfig.cputype" | |
| config PPC32 | |
| bool | |
| default y if !PPC64 | |
| config 32BIT | |
| bool | |
| default y if PPC32 | |
| config 64BIT | |
| bool | |
| default y if PPC64 | |
| config WORD_SIZE | |
| int | |
| default 64 if PPC64 | |
| default 32 if !PPC64 | |
| config ARCH_PHYS_ADDR_T_64BIT | |
| def_bool PPC64 || PHYS_64BIT | |
| config MMU | |
| bool | |
| default y | |
| config GENERIC_CMOS_UPDATE | |
| def_bool y | |
| config GENERIC_TIME_VSYSCALL | |
| def_bool y | |
| config GENERIC_CLOCKEVENTS | |
| def_bool y | |
| config GENERIC_HARDIRQS | |
| bool | |
| default y | |
| config GENERIC_HARDIRQS_NO__DO_IRQ | |
| bool | |
| default y | |
| config HAVE_SETUP_PER_CPU_AREA | |
| def_bool PPC64 | |
| config NEED_PER_CPU_EMBED_FIRST_CHUNK | |
| def_bool PPC64 | |
| config IRQ_PER_CPU | |
| bool | |
| default y | |
| config NR_IRQS | |
| int "Number of virtual interrupt numbers" | |
| range 32 32768 | |
| default "512" | |
| help | |
| This defines the number of virtual interrupt numbers the kernel | |
| can manage. Virtual interrupt numbers are what you see in | |
| /proc/interrupts. If you configure your system to have too few, | |
| drivers will fail to load or worse - handle with care. | |
| config STACKTRACE_SUPPORT | |
| bool | |
| default y | |
| config HAVE_LATENCYTOP_SUPPORT | |
| def_bool y | |
| config TRACE_IRQFLAGS_SUPPORT | |
| bool | |
| default y | |
| config LOCKDEP_SUPPORT | |
| bool | |
| default y | |
| config RWSEM_GENERIC_SPINLOCK | |
| bool | |
| config RWSEM_XCHGADD_ALGORITHM | |
| bool | |
| default y | |
| config GENERIC_LOCKBREAK | |
| bool | |
| default y | |
| depends on SMP && PREEMPT | |
| config ARCH_HAS_ILOG2_U32 | |
| bool | |
| default y | |
| config ARCH_HAS_ILOG2_U64 | |
| bool | |
| default y if 64BIT | |
| config GENERIC_HWEIGHT | |
| bool | |
| default y | |
| config GENERIC_FIND_NEXT_BIT | |
| bool | |
| default y | |
| config GENERIC_GPIO | |
| bool | |
| help | |
| Generic GPIO API support | |
| config ARCH_NO_VIRT_TO_BUS | |
| def_bool PPC64 | |
| config PPC | |
| bool | |
| default y | |
| select OF | |
| select OF_FLATTREE | |
| select HAVE_FTRACE_MCOUNT_RECORD | |
| select HAVE_DYNAMIC_FTRACE | |
| select HAVE_FUNCTION_TRACER | |
| select HAVE_FUNCTION_GRAPH_TRACER | |
| select ARCH_WANT_OPTIONAL_GPIOLIB | |
| select HAVE_IDE | |
| select HAVE_IOREMAP_PROT | |
| select HAVE_EFFICIENT_UNALIGNED_ACCESS | |
| select HAVE_KPROBES | |
| select HAVE_ARCH_KGDB | |
| select HAVE_KRETPROBES | |
| select HAVE_ARCH_TRACEHOOK | |
| select HAVE_MEMBLOCK | |
| select HAVE_DMA_ATTRS | |
| select HAVE_DMA_API_DEBUG | |
| select USE_GENERIC_SMP_HELPERS if SMP | |
| select HAVE_OPROFILE | |
| select HAVE_SYSCALL_WRAPPERS if PPC64 | |
| select GENERIC_ATOMIC64 if PPC32 | |
| select HAVE_IRQ_WORK | |
| select HAVE_PERF_EVENTS | |
| select HAVE_REGS_AND_STACK_ACCESS_API | |
| select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64 | |
| config EARLY_PRINTK | |
| bool | |
| default y | |
| config COMPAT | |
| bool | |
| default y if PPC64 | |
| select COMPAT_BINFMT_ELF | |
| config SYSVIPC_COMPAT | |
| bool | |
| depends on COMPAT && SYSVIPC | |
| default y | |
| # All PPC32s use generic nvram driver through ppc_md | |
| config GENERIC_NVRAM | |
| bool | |
| default y if PPC32 | |
| config SCHED_OMIT_FRAME_POINTER | |
| bool | |
| default y | |
| config ARCH_MAY_HAVE_PC_FDC | |
| bool | |
| default !PPC_PSERIES || PCI | |
| config PPC_OF | |
| def_bool y | |
| config PPC_UDBG_16550 | |
| bool | |
| default n | |
| config GENERIC_TBSYNC | |
| bool | |
| default y if PPC32 && SMP | |
| default n | |
| config AUDIT_ARCH | |
| bool | |
| default y | |
| config GENERIC_BUG | |
| bool | |
| default y | |
| depends on BUG | |
| config SYS_SUPPORTS_APM_EMULATION | |
| default y if PMAC_APM_EMU | |
| bool | |
| config DEFAULT_UIMAGE | |
| bool | |
| help | |
| Used to allow a board to specify it wants a uImage built by default | |
| default n | |
| config REDBOOT | |
| bool | |
| config ARCH_HIBERNATION_POSSIBLE | |
| bool | |
| default y | |
| config ARCH_SUSPEND_POSSIBLE | |
| def_bool y | |
| depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \ | |
| PPC_85xx || PPC_86xx || PPC_PSERIES | |
| config PPC_DCR_NATIVE | |
| bool | |
| default n | |
| config PPC_DCR_MMIO | |
| bool | |
| default n | |
| config PPC_DCR | |
| bool | |
| depends on PPC_DCR_NATIVE || PPC_DCR_MMIO | |
| default y | |
| config PPC_OF_PLATFORM_PCI | |
| bool | |
| depends on PCI | |
| depends on PPC64 # not supported on 32 bits yet | |
| default n | |
| config ARCH_SUPPORTS_DEBUG_PAGEALLOC | |
| def_bool y | |
| config PPC_ADV_DEBUG_REGS | |
| bool | |
| depends on 40x || BOOKE | |
| default y | |
| config PPC_ADV_DEBUG_IACS | |
| int | |
| depends on PPC_ADV_DEBUG_REGS | |
| default 4 if 44x | |
| default 2 | |
| config PPC_ADV_DEBUG_DACS | |
| int | |
| depends on PPC_ADV_DEBUG_REGS | |
| default 2 | |
| config PPC_ADV_DEBUG_DVCS | |
| int | |
| depends on PPC_ADV_DEBUG_REGS | |
| default 2 if 44x | |
| default 0 | |
| config PPC_ADV_DEBUG_DAC_RANGE | |
| bool | |
| depends on PPC_ADV_DEBUG_REGS && 44x | |
| default y | |
| source "init/Kconfig" | |
| source "kernel/Kconfig.freezer" | |
| source "arch/powerpc/sysdev/Kconfig" | |
| source "arch/powerpc/platforms/Kconfig" | |
| menu "Kernel options" | |
| config HIGHMEM | |
| bool "High memory support" | |
| depends on PPC32 | |
| source kernel/time/Kconfig | |
| source kernel/Kconfig.hz | |
| source kernel/Kconfig.preempt | |
| source "fs/Kconfig.binfmt" | |
| config HUGETLB_PAGE_SIZE_VARIABLE | |
| bool | |
| depends on HUGETLB_PAGE | |
| default y | |
| config MATH_EMULATION | |
| bool "Math emulation" | |
| depends on 4xx || 8xx || E200 || PPC_MPC832x || E500 | |
| ---help--- | |
| Some PowerPC chips designed for embedded applications do not have | |
| a floating-point unit and therefore do not implement the | |
| floating-point instructions in the PowerPC instruction set. If you | |
| say Y here, the kernel will include code to emulate a floating-point | |
| unit, which will allow programs that use floating-point | |
| instructions to run. | |
| config 8XX_MINIMAL_FPEMU | |
| bool "Minimal math emulation for 8xx" | |
| depends on 8xx && !MATH_EMULATION | |
| help | |
| Older arch/ppc kernels still emulated a few floating point | |
| instructions such as load and store, even when full math | |
| emulation is disabled. Say "Y" here if you want to preserve | |
| this behavior. | |
| It is recommended that you build a soft-float userspace instead. | |
| config IOMMU_HELPER | |
| def_bool PPC64 | |
| config SWIOTLB | |
| bool "SWIOTLB support" | |
| default n | |
| select IOMMU_HELPER | |
| ---help--- | |
| Support for IO bounce buffering for systems without an IOMMU. | |
| This allows us to DMA to the full physical address space on | |
| platforms where the size of a physical address is larger | |
| than the bus address. Not all platforms support this. | |
| config HOTPLUG_CPU | |
| bool "Support for enabling/disabling CPUs" | |
| depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC) | |
| ---help--- | |
| Say Y here to be able to disable and re-enable individual | |
| CPUs at runtime on SMP machines. | |
| Say N if you are unsure. | |
| config ARCH_CPU_PROBE_RELEASE | |
| def_bool y | |
| depends on HOTPLUG_CPU | |
| config ARCH_ENABLE_MEMORY_HOTPLUG | |
| def_bool y | |
| config ARCH_HAS_WALK_MEMORY | |
| def_bool y | |
| config ARCH_ENABLE_MEMORY_HOTREMOVE | |
| def_bool y | |
| config KEXEC | |
| bool "kexec system call (EXPERIMENTAL)" | |
| depends on (PPC_BOOK3S || FSL_BOOKE) && EXPERIMENTAL | |
| help | |
| kexec is a system call that implements the ability to shutdown your | |
| current kernel, and to start another kernel. It is like a reboot | |
| but it is independent of the system firmware. And like a reboot | |
| you can start any kernel with it, not just Linux. | |
| The name comes from the similarity to the exec system call. | |
| It is an ongoing process to be certain the hardware in a machine | |
| is properly shutdown, so do not be surprised if this code does not | |
| initially work for you. It may help to enable device hotplugging | |
| support. As of this writing the exact hardware interface is | |
| strongly in flux, so no good recommendation can be made. | |
| config CRASH_DUMP | |
| bool "Build a kdump crash kernel" | |
| depends on PPC64 || 6xx || FSL_BOOKE | |
| select RELOCATABLE if PPC64 || FSL_BOOKE | |
| help | |
| Build a kernel suitable for use as a kdump capture kernel. | |
| The same kernel binary can be used as production kernel and dump | |
| capture kernel. | |
| config PHYP_DUMP | |
| bool "Hypervisor-assisted dump (EXPERIMENTAL)" | |
| depends on PPC_PSERIES && EXPERIMENTAL | |
| help | |
| Hypervisor-assisted dump is meant to be a kdump replacement | |
| offering robustness and speed not possible without system | |
| hypervisor assistance. | |
| If unsure, say "N" | |
| config PPCBUG_NVRAM | |
| bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC | |
| default y if PPC_PREP | |
| 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 SPARSE_IRQ | |
| bool "Support sparse irq numbering" | |
| default n | |
| help | |
| This enables support for sparse irqs. This is useful for distro | |
| kernels that want to define a high CONFIG_NR_CPUS value but still | |
| want to have low kernel memory footprint on smaller machines. | |
| ( Sparse IRQs can also be beneficial on NUMA boxes, as they spread | |
| out the irq_desc[] array in a more NUMA-friendly way. ) | |
| If you don't know what to do here, say N. | |
| config NUMA | |
| bool "NUMA support" | |
| depends on PPC64 | |
| default y if SMP && PPC_PSERIES | |
| config NODES_SHIFT | |
| int | |
| default "8" if PPC64 | |
| default "4" | |
| depends on NEED_MULTIPLE_NODES | |
| config MAX_ACTIVE_REGIONS | |
| int | |
| default "256" if PPC64 | |
| default "32" | |
| config ARCH_SELECT_MEMORY_MODEL | |
| def_bool y | |
| depends on PPC64 | |
| config ARCH_FLATMEM_ENABLE | |
| def_bool y | |
| depends on (PPC64 && !NUMA) || PPC32 | |
| config ARCH_SPARSEMEM_ENABLE | |
| def_bool y | |
| depends on PPC64 | |
| select SPARSEMEM_VMEMMAP_ENABLE | |
| config ARCH_SPARSEMEM_DEFAULT | |
| def_bool y | |
| depends on (SMP && PPC_PSERIES) || PPC_PS3 | |
| config ARCH_POPULATES_NODE_MAP | |
| def_bool y | |
| config SYS_SUPPORTS_HUGETLBFS | |
| def_bool y | |
| depends on PPC_BOOK3S_64 | |
| source "mm/Kconfig" | |
| config ARCH_MEMORY_PROBE | |
| def_bool y | |
| depends on MEMORY_HOTPLUG | |
| # 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. See memmap_init_zone() | |
| # for details. | |
| config NODES_SPAN_OTHER_NODES | |
| def_bool y | |
| depends on NEED_MULTIPLE_NODES | |
| config PPC_HAS_HASH_64K | |
| bool | |
| depends on PPC64 | |
| default n | |
| config STDBINUTILS | |
| bool "Using standard binutils settings" | |
| depends on 44x | |
| default y | |
| help | |
| Turning this option off allows you to select 256KB PAGE_SIZE on 44x. | |
| Note, that kernel will be able to run only those applications, | |
| which had been compiled using binutils later than 2.17.50.0.3 with | |
| '-zmax-page-size' set to 256K (the default is 64K). Or, if using | |
| the older binutils, you can patch them with a trivial patch, which | |
| changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000. | |
| choice | |
| prompt "Page size" | |
| default PPC_4K_PAGES | |
| help | |
| Select the kernel logical page size. Increasing the page size | |
| will reduce software overhead at each page boundary, allow | |
| hardware prefetch mechanisms to be more effective, and allow | |
| larger dma transfers increasing IO efficiency and reducing | |
| overhead. However the utilization of memory will increase. | |
| For example, each cached file will using a multiple of the | |
| page size to hold its contents and the difference between the | |
| end of file and the end of page is wasted. | |
| Some dedicated systems, such as software raid serving with | |
| accelerated calculations, have shown significant increases. | |
| If you configure a 64 bit kernel for 64k pages but the | |
| processor does not support them, then the kernel will simulate | |
| them with 4k pages, loading them on demand, but with the | |
| reduced software overhead and larger internal fragmentation. | |
| For the 32 bit kernel, a large page option will not be offered | |
| unless it is supported by the configured processor. | |
| If unsure, choose 4K_PAGES. | |
| config PPC_4K_PAGES | |
| bool "4k page size" | |
| config PPC_16K_PAGES | |
| bool "16k page size" if 44x | |
| config PPC_64K_PAGES | |
| bool "64k page size" if 44x || PPC_STD_MMU_64 || PPC_BOOK3E_64 | |
| select PPC_HAS_HASH_64K if PPC_STD_MMU_64 | |
| config PPC_256K_PAGES | |
| bool "256k page size" if 44x | |
| depends on !STDBINUTILS | |
| help | |
| Make the page size 256k. | |
| As the ELF standard only requires alignment to support page | |
| sizes up to 64k, you will need to compile all of your user | |
| space applications with a non-standard binutils settings | |
| (see the STDBINUTILS description for details). | |
| Say N unless you know what you are doing. | |
| endchoice | |
| config FORCE_MAX_ZONEORDER | |
| int "Maximum zone order" | |
| range 9 64 if PPC64 && PPC_64K_PAGES | |
| default "9" if PPC64 && PPC_64K_PAGES | |
| range 13 64 if PPC64 && !PPC_64K_PAGES | |
| default "13" if PPC64 && !PPC_64K_PAGES | |
| range 9 64 if PPC32 && PPC_16K_PAGES | |
| default "9" if PPC32 && PPC_16K_PAGES | |
| range 7 64 if PPC32 && PPC_64K_PAGES | |
| default "7" if PPC32 && PPC_64K_PAGES | |
| range 5 64 if PPC32 && PPC_256K_PAGES | |
| default "5" if PPC32 && PPC_256K_PAGES | |
| range 11 64 | |
| default "11" | |
| help | |
| The kernel memory allocator divides physically contiguous memory | |
| blocks into "zones", where each zone is a power of two number of | |
| pages. This option selects the largest power of two that the kernel | |
| keeps in the memory allocator. If you need to allocate very large | |
| blocks of physically contiguous memory, then you may need to | |
| increase this value. | |
| This config option is actually maximum order plus one. For example, | |
| a value of 11 means that the largest free memory block is 2^10 pages. | |
| The page size is not necessarily 4KB. For example, on 64-bit | |
| systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep | |
| this in mind when choosing a value for this option. | |
| config PPC_SUBPAGE_PROT | |
| bool "Support setting protections for 4k subpages" | |
| depends on PPC_STD_MMU_64 && PPC_64K_PAGES | |
| help | |
| This option adds support for a system call to allow user programs | |
| to set access permissions (read/write, readonly, or no access) | |
| on the 4k subpages of each 64k page. | |
| config SCHED_SMT | |
| bool "SMT (Hyperthreading) scheduler support" | |
| depends on PPC64 && SMP | |
| 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 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. | |
| config EXTRA_TARGETS | |
| string "Additional default image types" | |
| help | |
| List additional targets to be built by the bootwrapper here (separated | |
| by spaces). This is useful for targets that depend of device tree | |
| files in the .dts directory. | |
| Targets in this list will be build as part of the default build | |
| target, or when the user does a 'make zImage' or a | |
| 'make zImage.initrd'. | |
| If unsure, leave blank | |
| if !44x || BROKEN | |
| config ARCH_WANTS_FREEZER_CONTROL | |
| def_bool y | |
| depends on ADB_PMU | |
| 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 !PPC_ISERIES || PCI | |
| menu "Bus options" | |
| config ISA | |
| bool "Support for ISA-bus hardware" | |
| depends on PPC_PREP || PPC_CHRP | |
| select PPC_I8259 | |
| 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 NEED_DMA_MAP_STATE | |
| def_bool (PPC64 || NOT_COHERENT_CACHE) | |
| config NEED_SG_DMA_LENGTH | |
| def_bool y | |
| config GENERIC_ISA_DMA | |
| bool | |
| depends on ISA_DMA_API | |
| default y | |
| config PPC_INDIRECT_PCI | |
| bool | |
| depends on PCI | |
| default y if 40x || 44x | |
| default n | |
| config EISA | |
| bool | |
| config SBUS | |
| bool | |
| config FSL_SOC | |
| bool | |
| config FSL_PCI | |
| bool | |
| select PPC_INDIRECT_PCI | |
| select PCI_QUIRKS | |
| config FSL_PMC | |
| bool | |
| default y | |
| depends on SUSPEND && (PPC_85xx || PPC_86xx) | |
| help | |
| Freescale MPC85xx/MPC86xx power management controller support | |
| (suspend/resume). For MPC83xx see platforms/83xx/suspend.c | |
| config 4xx_SOC | |
| bool | |
| config FSL_LBC | |
| bool "Freescale Local Bus support" | |
| depends on FSL_SOC | |
| help | |
| Enables reporting of errors from the Freescale local bus | |
| controller. Also contains some common code used by | |
| drivers for specific local bus peripherals. | |
| config FSL_GTM | |
| bool | |
| depends on PPC_83xx || QUICC_ENGINE || CPM2 | |
| help | |
| Freescale General-purpose Timers support | |
| # Yes MCA RS/6000s exist but Linux-PPC does not currently support any | |
| config MCA | |
| bool | |
| # Platforms that what PCI turned unconditionally just do select PCI | |
| # in their config node. Platforms that want to choose at config | |
| # time should select PPC_PCI_CHOICE | |
| config PPC_PCI_CHOICE | |
| bool | |
| config PCI | |
| bool "PCI support" if PPC_PCI_CHOICE | |
| default y if !40x && !CPM2 && !8xx && !PPC_83xx \ | |
| && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON | |
| default PCI_PERMEDIA if !4xx && !CPM2 && !8xx | |
| default PCI_QSPAN if !4xx && !CPM2 && 8xx | |
| select ARCH_SUPPORTS_MSI | |
| 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 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 && !8272 | |
| 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/pcie/Kconfig" | |
| source "drivers/pci/Kconfig" | |
| source "drivers/pcmcia/Kconfig" | |
| source "drivers/pci/hotplug/Kconfig" | |
| config HAS_RAPIDIO | |
| bool | |
| default n | |
| config RAPIDIO | |
| bool "RapidIO support" | |
| depends on HAS_RAPIDIO | |
| 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" | |
| depends on PPC32 | |
| 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 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 LOWMEM_CAM_NUM_BOOL | |
| bool "Set number of CAMs to use to map low memory" | |
| depends on ADVANCED_OPTIONS && FSL_BOOKE | |
| help | |
| This option allows you to set the maximum number of CAM slots that | |
| will be used to map low memory. There are a limited number of slots | |
| available and even more limited number that will fit in the L1 MMU. | |
| However, using more entries will allow mapping more low memory. This | |
| can be useful in optimizing the layout of kernel virtual memory. | |
| Say N here unless you know what you are doing. | |
| config LOWMEM_CAM_NUM | |
| depends on FSL_BOOKE | |
| int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL | |
| default 3 | |
| config RELOCATABLE | |
| bool "Build a relocatable kernel (EXPERIMENTAL)" | |
| depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE | |
| help | |
| This builds a kernel image that is capable of running at the | |
| location the kernel is loaded at (some alignment restrictions may | |
| exist). | |
| One use is for the kexec on panic case where the recovery kernel | |
| must live at a different physical address than the primary | |
| kernel. | |
| Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address | |
| it has been loaded at and the compile time physical addresses | |
| CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START | |
| setting can still be useful to bootwrappers that need to know the | |
| load location of the kernel (eg. u-boot/mkimage). | |
| config PAGE_OFFSET_BOOL | |
| bool "Set custom page offset address" | |
| depends on ADVANCED_OPTIONS | |
| help | |
| This option allows you to set the kernel virtual address at which | |
| the kernel will map low memory. This can be useful in optimizing | |
| the virtual memory layout of the system. | |
| Say N here unless you know what you are doing. | |
| config PAGE_OFFSET | |
| hex "Virtual address of memory base" if PAGE_OFFSET_BOOL | |
| default "0xc0000000" | |
| 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 be loaded. Normally this should match PAGE_OFFSET | |
| however there are times (like kdump) that one might not want them | |
| to be the same. | |
| Say N here unless you know what you are doing. | |
| config KERNEL_START | |
| hex "Virtual address of kernel base" if KERNEL_START_BOOL | |
| default PAGE_OFFSET if PAGE_OFFSET_BOOL | |
| default "0xc2000000" if CRASH_DUMP && !RELOCATABLE | |
| default "0xc0000000" | |
| config PHYSICAL_START_BOOL | |
| bool "Set physical address where the kernel is loaded" | |
| depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE | |
| help | |
| This gives the physical address where the kernel is loaded. | |
| Say N here unless you know what you are doing. | |
| config PHYSICAL_START | |
| hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL | |
| default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !RELOCATABLE | |
| default "0x00000000" | |
| config PHYSICAL_ALIGN | |
| hex | |
| default "0x04000000" if FSL_BOOKE | |
| help | |
| This value puts the alignment restrictions on physical address | |
| where kernel is loaded and run from. Kernel is compiled for an | |
| address which meets above alignment restriction. | |
| 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" if PPC_PREP || PPC_8xx | |
| default "0xc0000000" | |
| 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 PIN_TLB | |
| bool "Pinned Kernel TLBs (860 ONLY)" | |
| depends on ADVANCED_OPTIONS && 8xx | |
| endmenu | |
| if PPC64 | |
| config RELOCATABLE | |
| bool "Build a relocatable kernel" | |
| help | |
| This builds a kernel image that is capable of running anywhere | |
| in the RMA (real memory area) at any 16k-aligned base address. | |
| The kernel is linked as a position-independent executable (PIE) | |
| and contains dynamic relocations which are processed early | |
| in the bootup process. | |
| One use is for the kexec on panic case where the recovery kernel | |
| must live at a different physical address than the primary | |
| kernel. | |
| config PAGE_OFFSET | |
| hex | |
| default "0xc000000000000000" | |
| config KERNEL_START | |
| hex | |
| default "0xc000000000000000" | |
| config PHYSICAL_START | |
| hex | |
| default "0x00000000" | |
| endif | |
| source "net/Kconfig" | |
| source "drivers/Kconfig" | |
| source "fs/Kconfig" | |
| source "arch/powerpc/sysdev/qe_lib/Kconfig" | |
| source "lib/Kconfig" | |
| source "arch/powerpc/Kconfig.debug" | |
| source "security/Kconfig" | |
| config KEYS_COMPAT | |
| bool | |
| depends on COMPAT && KEYS | |
| default y | |
| source "crypto/Kconfig" | |
| config PPC_CLOCK | |
| bool | |
| default n | |
| select HAVE_CLK | |
| config PPC_LIB_RHEAP | |
| bool | |
| source "arch/powerpc/kvm/Kconfig" |