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Merge tag 'arc-v3.9-rc1-late' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Pull new ARC architecture from Vineet Gupta:
"Initial ARC Linux port with some fixes on top for 3.9-rc1:
I would like to introduce the Linux port to ARC Processors (from
Synopsys) for 3.9-rc1. The patch-set has been discussed on the public
lists since Nov and has received a fair bit of review, specially from
Arnd, tglx, Al and other subsystem maintainers for DeviceTree, kgdb...
The arch bits are in arch/arc, some asm-generic changes (acked by
Arnd), a minor change to PARISC (acked by Helge).
The series is a touch bigger for a new port for 2 main reasons:
1. It enables a basic kernel in first sub-series and adds
ptrace/kgdb/.. later
2. Some of the fallout of review (DeviceTree support, multi-platform-
image support) were added on top of orig series, primarily to
record the revision history.
This updated pull request additionally contains
- fixes due to our GNU tools catching up with the new syscall/ptrace
ABI
- some (minor) cross-arch Kconfig updates."
* tag 'arc-v3.9-rc1-late' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: (82 commits)
ARC: split elf.h into uapi and export it for userspace
ARC: Fixup the current ABI version
ARC: gdbserver using regset interface possibly broken
ARC: Kconfig cleanup tracking cross-arch Kconfig pruning in merge window
ARC: make a copy of flat DT
ARC: [plat-arcfpga] DT arc-uart bindings change: "baud" => "current-speed"
ARC: Ensure CONFIG_VIRT_TO_BUS is not enabled
ARC: Fix pt_orig_r8 access
ARC: [3.9] Fallout of hlist iterator update
ARC: 64bit RTSC timestamp hardware issue
ARC: Don't fiddle with non-existent caches
ARC: Add self to MAINTAINERS
ARC: Provide a default serial.h for uart drivers needing BASE_BAUD
ARC: [plat-arcfpga] defconfig for fully loaded ARC Linux
ARC: [Review] Multi-platform image #8: platform registers SMP callbacks
ARC: [Review] Multi-platform image #7: SMP common code to use callbacks
ARC: [Review] Multi-platform image #6: cpu-to-dma-addr optional
ARC: [Review] Multi-platform image #5: NR_IRQS defined by ARC core
ARC: [Review] Multi-platform image #4: Isolate platform headers
ARC: [Review] Multi-platform image #3: switch to board callback
...
314 lines
6.9 KiB
Text
314 lines
6.9 KiB
Text
config PARISC
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def_bool y
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select HAVE_IDE
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select HAVE_OPROFILE
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select HAVE_FUNCTION_TRACER if 64BIT
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select HAVE_FUNCTION_GRAPH_TRACER if 64BIT
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select HAVE_FUNCTION_TRACE_MCOUNT_TEST if 64BIT
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select RTC_CLASS
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select RTC_DRV_GENERIC
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select INIT_ALL_POSSIBLE
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select BUG
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select HAVE_PERF_EVENTS
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select GENERIC_ATOMIC64 if !64BIT
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select HAVE_GENERIC_HARDIRQS
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select BROKEN_RODATA
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select GENERIC_IRQ_PROBE
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select GENERIC_PCI_IOMAP
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select ARCH_HAVE_NMI_SAFE_CMPXCHG
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select GENERIC_SMP_IDLE_THREAD
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select GENERIC_STRNCPY_FROM_USER
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select SYSCTL_ARCH_UNALIGN_ALLOW
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select HAVE_MOD_ARCH_SPECIFIC
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select HAVE_VIRT_TO_BUS
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select MODULES_USE_ELF_RELA
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select CLONE_BACKWARDS
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select TTY # Needed for pdc_cons.c
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help
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The PA-RISC microprocessor is designed by Hewlett-Packard and used
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in many of their workstations & servers (HP9000 700 and 800 series,
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and later HP3000 series). The PA-RISC Linux project home page is
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at <http://www.parisc-linux.org/>.
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config MMU
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def_bool y
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config STACK_GROWSUP
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def_bool y
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config GENERIC_LOCKBREAK
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bool
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default y
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depends on SMP && PREEMPT
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config RWSEM_GENERIC_SPINLOCK
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def_bool y
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config RWSEM_XCHGADD_ALGORITHM
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bool
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config ARCH_HAS_ILOG2_U32
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bool
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default n
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config ARCH_HAS_ILOG2_U64
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bool
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default n
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config GENERIC_BUG
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bool
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default y
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depends on BUG
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config GENERIC_HWEIGHT
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bool
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default y
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config GENERIC_CALIBRATE_DELAY
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bool
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default y
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config TIME_LOW_RES
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bool
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depends on SMP
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default y
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config HAVE_LATENCYTOP_SUPPORT
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def_bool y
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# unless you want to implement ACPI on PA-RISC ... ;-)
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config PM
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bool
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config STACKTRACE_SUPPORT
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def_bool y
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config NEED_DMA_MAP_STATE
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def_bool y
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config NEED_SG_DMA_LENGTH
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def_bool y
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config ISA_DMA_API
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bool
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config ARCH_MAY_HAVE_PC_FDC
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bool
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depends on BROKEN
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default y
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source "init/Kconfig"
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source "kernel/Kconfig.freezer"
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menu "Processor type and features"
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choice
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prompt "Processor type"
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default PA7000
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config PA7000
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bool "PA7000/PA7100"
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---help---
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This is the processor type of your CPU. This information is
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used for optimizing purposes. In order to compile a kernel
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that can run on all 32-bit PA CPUs (albeit not optimally fast),
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you can specify "PA7000" here.
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Specifying "PA8000" here will allow you to select a 64-bit kernel
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which is required on some machines.
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config PA7100LC
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bool "PA7100LC"
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help
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Select this option for the PCX-L processor, as used in the
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712, 715/64, 715/80, 715/100, 715/100XC, 725/100, 743, 748,
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D200, D210, D300, D310 and E-class
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config PA7200
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bool "PA7200"
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help
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Select this option for the PCX-T' processor, as used in the
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C100, C110, J100, J110, J210XC, D250, D260, D350, D360,
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K100, K200, K210, K220, K400, K410 and K420
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config PA7300LC
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bool "PA7300LC"
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help
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Select this option for the PCX-L2 processor, as used in the
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744, A180, B132L, B160L, B180L, C132L, C160L, C180L,
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D220, D230, D320 and D330.
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config PA8X00
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bool "PA8000 and up"
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help
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Select this option for PCX-U to PCX-W2 processors.
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endchoice
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# Define implied options from the CPU selection here
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config PA20
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def_bool y
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depends on PA8X00
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config PA11
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def_bool y
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depends on PA7000 || PA7100LC || PA7200 || PA7300LC
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config PREFETCH
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def_bool y
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depends on PA8X00 || PA7200
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config MLONGCALLS
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bool "Enable the -mlong-calls compiler option for big kernels"
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def_bool y if (!MODULES)
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depends on PA8X00
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help
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If you configure the kernel to include many drivers built-in instead
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as modules, the kernel executable may become too big, so that the
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linker will not be able to resolve some long branches and fails to link
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your vmlinux kernel. In that case enabling this option will help you
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to overcome this limit by using the -mlong-calls compiler option.
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Usually you want to say N here, unless you e.g. want to build
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a kernel which includes all necessary drivers built-in and which can
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be used for TFTP booting without the need to have an initrd ramdisk.
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Enabling this option will probably slow down your kernel.
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config 64BIT
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bool "64-bit kernel"
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depends on PA8X00
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help
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Enable this if you want to support 64bit kernel on PA-RISC platform.
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At the moment, only people willing to use more than 2GB of RAM,
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or having a 64bit-only capable PA-RISC machine should say Y here.
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Since there is no 64bit userland on PA-RISC, there is no point to
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enable this option otherwise. The 64bit kernel is significantly bigger
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and slower than the 32bit one.
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choice
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prompt "Kernel page size"
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default PARISC_PAGE_SIZE_4KB
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config PARISC_PAGE_SIZE_4KB
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bool "4KB"
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help
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This lets you select the page size of the kernel. For best
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performance, a page size of 16KB is recommended. For best
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compatibility with 32bit applications, a page size of 4KB should be
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selected (the vast majority of 32bit binaries work perfectly fine
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with a larger page size).
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4KB For best 32bit compatibility
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16KB For best performance
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64KB For best performance, might give more overhead.
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If you don't know what to do, choose 4KB.
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config PARISC_PAGE_SIZE_16KB
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bool "16KB"
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depends on PA8X00
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config PARISC_PAGE_SIZE_64KB
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bool "64KB"
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depends on PA8X00
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endchoice
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config SMP
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bool "Symmetric multi-processing support"
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select USE_GENERIC_SMP_HELPERS
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---help---
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This enables support for systems with more than one CPU. If you have
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a system with only one CPU, like most personal computers, say N. If
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you have a system with more than one CPU, say Y.
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If you say N here, the kernel will run on single and multiprocessor
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machines, but will use only one CPU of a multiprocessor machine. If
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you say Y here, the kernel will run on many, but not all,
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singleprocessor machines. On a singleprocessor machine, the kernel
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will run faster if you say N here.
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See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
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available at <http://www.tldp.org/docs.html#howto>.
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If you don't know what to do here, say N.
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config HOTPLUG_CPU
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bool
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default y if SMP
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select HOTPLUG
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config ARCH_SELECT_MEMORY_MODEL
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def_bool y
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depends on 64BIT
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config ARCH_DISCONTIGMEM_ENABLE
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def_bool y
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depends on 64BIT
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config ARCH_FLATMEM_ENABLE
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def_bool y
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config ARCH_DISCONTIGMEM_DEFAULT
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def_bool y
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depends on ARCH_DISCONTIGMEM_ENABLE
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config NODES_SHIFT
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int
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default "3"
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depends on NEED_MULTIPLE_NODES
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source "kernel/Kconfig.preempt"
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source "kernel/Kconfig.hz"
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source "mm/Kconfig"
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config COMPAT
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def_bool y
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depends on 64BIT
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config SYSVIPC_COMPAT
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def_bool y
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depends on COMPAT && SYSVIPC
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config HPUX
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bool "Support for HP-UX binaries"
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depends on !64BIT
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config NR_CPUS
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int "Maximum number of CPUs (2-32)"
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range 2 32
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depends on SMP
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default "32"
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endmenu
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source "drivers/parisc/Kconfig"
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menu "Executable file formats"
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source "fs/Kconfig.binfmt"
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endmenu
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source "net/Kconfig"
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source "drivers/Kconfig"
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source "fs/Kconfig"
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source "arch/parisc/Kconfig.debug"
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source "security/Kconfig"
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source "crypto/Kconfig"
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source "lib/Kconfig"
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