arch/sparc/Kconfig - linux - Git at Google


            
            config 64BIT

            
            	bool "64-bit kernel" if "$(ARCH)" = "sparc"

            
            	default "$(ARCH)" = "sparc64"

            
            	help

            
            	  SPARC is a family of RISC microprocessors designed and marketed by

            
            	  Sun Microsystems, incorporated.  They are very widely found in Sun

            
            	  workstations and clones.


            	  Say yes to build a 64-bit kernel - formerly known as sparc64

            
            	  Say no to build a 32-bit kernel - formerly known as sparc


            config SPARC

            
            	bool

            
            	default y

            
            	select ARCH_MIGHT_HAVE_PC_PARPORT if SPARC64 && PCI

            
            	select ARCH_MIGHT_HAVE_PC_SERIO

            
            	select OF

            
            	select OF_PROMTREE

            
            	select HAVE_IDE

            
            	select HAVE_OPROFILE

            
            	select HAVE_ARCH_KGDB if !SMP || SPARC64

            
            	select HAVE_ARCH_TRACEHOOK

            
            	select HAVE_EXIT_THREAD

            
            	select SYSCTL_EXCEPTION_TRACE

            
            	select RTC_CLASS

            
            	select RTC_DRV_M48T59

            
            	select RTC_SYSTOHC

            
            	select HAVE_ARCH_JUMP_LABEL if SPARC64

            
            	select GENERIC_IRQ_SHOW

            
            	select ARCH_WANT_IPC_PARSE_VERSION

            
            	select GENERIC_PCI_IOMAP

            
            	select HAVE_NMI_WATCHDOG if SPARC64

            
            	select HAVE_CBPF_JIT if SPARC32

            
            	select HAVE_EBPF_JIT if SPARC64

            
            	select HAVE_DEBUG_BUGVERBOSE

            
            	select GENERIC_SMP_IDLE_THREAD

            
            	select GENERIC_CLOCKEVENTS

            
            	select GENERIC_STRNCPY_FROM_USER

            
            	select GENERIC_STRNLEN_USER

            
            	select MODULES_USE_ELF_RELA

            
            	select ODD_RT_SIGACTION

            
            	select OLD_SIGSUSPEND

            
            	select ARCH_HAS_SG_CHAIN

            
            	select CPU_NO_EFFICIENT_FFS

            
            	select LOCKDEP_SMALL if LOCKDEP

            
            	select NEED_DMA_MAP_STATE

            
            	select NEED_SG_DMA_LENGTH

            
            	select HAVE_MEMBLOCK

            
            	select NO_BOOTMEM


            config SPARC32

            
            	def_bool !64BIT

            
            	select ARCH_HAS_SYNC_DMA_FOR_CPU

            
            	select DMA_NONCOHERENT_OPS

            
            	select GENERIC_ATOMIC64

            
            	select CLZ_TAB

            
            	select HAVE_UID16

            
            	select OLD_SIGACTION


            config SPARC64

            
            	def_bool 64BIT

            
            	select HAVE_FUNCTION_TRACER

            
            	select HAVE_FUNCTION_GRAPH_TRACER

            
            	select HAVE_KRETPROBES

            
            	select HAVE_KPROBES

            
            	select HAVE_RCU_TABLE_FREE if SMP

            
            	select HAVE_MEMBLOCK_NODE_MAP

            
            	select HAVE_ARCH_TRANSPARENT_HUGEPAGE

            
            	select HAVE_DYNAMIC_FTRACE

            
            	select HAVE_FTRACE_MCOUNT_RECORD

            
            	select HAVE_SYSCALL_TRACEPOINTS

            
            	select HAVE_CONTEXT_TRACKING

            
            	select HAVE_DEBUG_KMEMLEAK

            
            	select IOMMU_HELPER

            
            	select SPARSE_IRQ

            
            	select RTC_DRV_CMOS

            
            	select RTC_DRV_BQ4802

            
            	select RTC_DRV_SUN4V

            
            	select RTC_DRV_STARFIRE

            
            	select HAVE_PERF_EVENTS

            
            	select PERF_USE_VMALLOC

            
            	select IRQ_PREFLOW_FASTEOI

            
            	select ARCH_HAVE_NMI_SAFE_CMPXCHG

            
            	select HAVE_C_RECORDMCOUNT

            
            	select HAVE_ARCH_AUDITSYSCALL

            
            	select ARCH_SUPPORTS_ATOMIC_RMW

            
            	select HAVE_NMI

            
            	select HAVE_REGS_AND_STACK_ACCESS_API

            
            	select ARCH_USE_QUEUED_RWLOCKS

            
            	select ARCH_USE_QUEUED_SPINLOCKS

            
            	select GENERIC_TIME_VSYSCALL

            
            	select ARCH_CLOCKSOURCE_DATA

            
            	select ARCH_HAS_PTE_SPECIAL


            config ARCH_DEFCONFIG

            
            	string

            
            	default "arch/sparc/configs/sparc32_defconfig" if SPARC32

            
            	default "arch/sparc/configs/sparc64_defconfig" if SPARC64


            config ARCH_PROC_KCORE_TEXT

            
            	def_bool y


            config CPU_BIG_ENDIAN

            
            	def_bool y


            config ARCH_ATU

            
            	bool

            
            	default y if SPARC64


            config STACKTRACE_SUPPORT

            
            	bool

            
            	default y if SPARC64


            config LOCKDEP_SUPPORT

            
            	bool

            
            	default y if SPARC64


            config ARCH_HIBERNATION_POSSIBLE

            
            	def_bool y if SPARC64


            config AUDIT_ARCH

            
            	bool

            
            	default y


            config HAVE_SETUP_PER_CPU_AREA

            
            	def_bool y if SPARC64


            config NEED_PER_CPU_EMBED_FIRST_CHUNK

            
            	def_bool y if SPARC64


            config NEED_PER_CPU_PAGE_FIRST_CHUNK

            
            	def_bool y if SPARC64


            config MMU

            
            	bool

            
            	default y


            config HIGHMEM

            
            	bool

            
            	default y if SPARC32


            config ZONE_DMA

            
            	bool

            
            	default y if SPARC32


            config GENERIC_ISA_DMA

            
            	bool

            
            	default y if SPARC32


            config ARCH_SUPPORTS_DEBUG_PAGEALLOC

            
            	def_bool y if SPARC64


            config PGTABLE_LEVELS

            
            	default 4 if 64BIT

            
            	default 3


            config ARCH_SUPPORTS_UPROBES

            
            	def_bool y if SPARC64


            menu "Processor type and features"


            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 uni- and multiprocessor

            
            	  machines, but will use only one CPU of a multiprocessor machine. If

            
            	  you say Y here, the kernel will run on many, but not all,

            
            	  uniprocessor machines. On a uniprocessor machine, the kernel

            
            	  will run faster if you say N here.


            	  People using multiprocessor machines who say Y here should also say

            
            	  Y to "Enhanced Real Time Clock Support", below. The "Advanced Power

            
            	  Management" code will be disabled if you say Y here.


            	  See also <file:Documentation/lockup-watchdogs.txt> and the SMP-HOWTO

            
            	  available at <http://www.tldp.org/docs.html#howto>.


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


            config NR_CPUS

            
            	int "Maximum number of CPUs"

            
            	depends on SMP

            
            	range 2 32 if SPARC32

            
            	range 2 4096 if SPARC64

            
            	default 32 if SPARC32

            
            	default 4096 if SPARC64


            source kernel/Kconfig.hz


            config RWSEM_GENERIC_SPINLOCK

            
            	bool

            
            	default y if SPARC32


            config RWSEM_XCHGADD_ALGORITHM

            
            	bool

            
            	default y if SPARC64


            config GENERIC_HWEIGHT

            
            	bool

            
            	default y


            config GENERIC_CALIBRATE_DELAY

            
            	bool

            
            	default y


            config ARCH_MAY_HAVE_PC_FDC

            
            	bool

            
            	default y


            config EMULATED_CMPXCHG

            
            	bool

            
            	default y if SPARC32

            
            	help

            
            	  Sparc32 does not have a CAS instruction like sparc64. cmpxchg()

            
            	  is emulated, and therefore it is not completely atomic.


            # Makefile helpers

            
            config SPARC32_SMP

            
            	bool

            
            	default y

            
            	depends on SPARC32 && SMP


            config SPARC64_SMP

            
            	bool

            
            	default y

            
            	depends on SPARC64 && SMP


            config EARLYFB

            
            	bool "Support for early boot text console"

            
            	default y

            
            	depends on SPARC64

            
            	help

            
            	  Say Y here to enable a faster early framebuffer boot console.


            config SECCOMP

            
            	bool "Enable seccomp to safely compute untrusted bytecode"

            
            	depends on SPARC64 && 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.


            config HOTPLUG_CPU

            
            	bool "Support for hot-pluggable CPUs"

            
            	depends on SPARC64 && SMP

            
            	help

            
            	  Say Y here to experiment with turning CPUs off and on.  CPUs

            
            	  can be controlled through /sys/devices/system/cpu/cpu#.

            
            	  Say N if you want to disable CPU hotplug.


            if SPARC64

            
            source "drivers/cpufreq/Kconfig"

            
            endif


            config US3_MC

            
            	tristate "UltraSPARC-III Memory Controller driver"

            
            	depends on SPARC64

            
            	default y

            
            	help

            
            	  This adds a driver for the UltraSPARC-III memory controller.

            
            	  Loading this driver allows exact mnemonic strings to be

            
            	  printed in the event of a memory error, so that the faulty DIMM

            
            	  on the motherboard can be matched to the error.


            	  If in doubt, say Y, as this information can be very useful.


            # Global things across all Sun machines.

            
            config GENERIC_LOCKBREAK

            
            	bool

            
            	default y

            
            	depends on SPARC64 && SMP && PREEMPT


            config NUMA

            
            	bool "NUMA support"

            
            	depends on SPARC64 && SMP


            config NODES_SHIFT

            
            	int "Maximum NUMA Nodes (as a power of 2)"

            
            	range 4 5 if SPARC64

            
            	default "5"

            
            	depends on NEED_MULTIPLE_NODES

            
            	help

            
            	  Specify the maximum number of NUMA Nodes available on the target

            
            	  system.  Increases memory reserved to accommodate various tables.


            # 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 ARCH_SELECT_MEMORY_MODEL

            
            	def_bool y if SPARC64


            config ARCH_SPARSEMEM_ENABLE

            
            	def_bool y if SPARC64

            
            	select SPARSEMEM_VMEMMAP_ENABLE


            config ARCH_SPARSEMEM_DEFAULT

            
            	def_bool y if SPARC64


            config FORCE_MAX_ZONEORDER

            
            	int "Maximum zone order"

            
            	default "13"

            
            	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 13 means that the largest free memory block is 2^12 pages.


            if SPARC64

            
            source "kernel/power/Kconfig"

            
            endif


            config SCHED_SMT

            
            	bool "SMT (Hyperthreading) scheduler support"

            
            	depends on SPARC64 && SMP

            
            	default y

            
            	help

            
            	  SMT scheduler support improves the CPU scheduler's decision making

            
            	  when dealing with SPARC cpus at a cost of slightly increased overhead

            
            	  in some places. If unsure say N here.


            config SCHED_MC

            
            	bool "Multi-core scheduler support"

            
            	depends on SPARC64 && SMP

            
            	default y

            
            	help

            
            	  Multi-core scheduler support improves the CPU scheduler's decision

            
            	  making when dealing with multi-core CPU chips at a cost of slightly

            
            	  increased overhead in some places. If unsure say N here.


            config CMDLINE_BOOL

            
            	bool "Default bootloader kernel arguments"

            
            	depends on SPARC64


            config CMDLINE

            
            	string "Initial kernel command string"

            
            	depends on CMDLINE_BOOL

            
            	default "console=ttyS0,9600 root=/dev/sda1"

            
            	help

            
            	  Say Y here if you want to be able to pass default arguments to

            
            	  the kernel. This will be overridden by the bootloader, if you

            
            	  use one (such as SILO). This is most useful if you want to boot

            
            	  a kernel from TFTP, and want default options to be available

            
            	  with having them passed on the command line.


            	  NOTE: This option WILL override the PROM bootargs setting!


            config SUN_PM

            
            	bool

            
            	default y if SPARC32

            
            	help

            
            	  Enable power management and CPU standby features on supported

            
            	  SPARC platforms.


            config SPARC_LED

            
            	tristate "Sun4m LED driver"

            
            	depends on SPARC32

            
            	help

            
            	  This driver toggles the front-panel LED on sun4m systems

            
            	  in a user-specifiable manner.  Its state can be probed

            
            	  by reading /proc/led and its blinking mode can be changed

            
            	  via writes to /proc/led


            config SERIAL_CONSOLE

            
            	bool

            
            	depends on SPARC32

            
            	default y

            
            	---help---

            
            	  If you say Y here, it will be possible to use a serial port as the

            
            	  system console (the system console is the device which receives all

            
            	  kernel messages and warnings and which allows logins in single user

            
            	  mode). This could be useful if some terminal or printer is connected

            
            	  to that serial port.


            	  Even if you say Y here, the currently visible virtual console

            
            	  (/dev/tty0) will still be used as the system console by default, but

            
            	  you can alter that using a kernel command line option such as

            
            	  "console=ttyS1". (Try "man bootparam" or see the documentation of

            
            	  your boot loader (silo) about how to pass options to the kernel at

            
            	  boot time.)


            	  If you don't have a graphics card installed and you say Y here, the

            
            	  kernel will automatically use the first serial line, /dev/ttyS0, as

            
            	  system console.


            	  If unsure, say N.


            config SPARC_LEON

            
            	bool "Sparc Leon processor family"

            
            	depends on SPARC32

            
            	select USB_EHCI_BIG_ENDIAN_MMIO

            
            	select USB_EHCI_BIG_ENDIAN_DESC

            
            	select USB_UHCI_BIG_ENDIAN_MMIO

            
            	select USB_UHCI_BIG_ENDIAN_DESC

            
            	---help---

            
            	  If you say Y here if you are running on a SPARC-LEON processor.

            
            	  The LEON processor is a synthesizable VHDL model of the

            
            	  SPARC-v8 standard. LEON is  part of the GRLIB collection of

            
            	  IP cores that are distributed under GPL. GRLIB can be downloaded

            
            	  from www.gaisler.com. You can download a sparc-linux cross-compilation

            
            	  toolchain at www.gaisler.com.


            if SPARC_LEON

            
            menu "U-Boot options"


            config UBOOT_LOAD_ADDR

            
            	hex "uImage Load Address"

            
            	default 0x40004000

            
            	---help---

            
            	 U-Boot kernel load address, the address in physical address space

            
            	 where u-boot will place the Linux kernel before booting it.

            
            	 This address is normally the base address of main memory + 0x4000.


            config UBOOT_FLASH_ADDR

            
            	hex "uImage.o Load Address"

            
            	default 0x00080000

            
            	---help---

            
            	 Optional setting only affecting the uImage.o ELF-image used to

            
            	 download the uImage file to the target using a ELF-loader other than

            
            	 U-Boot. It may for example be used to download an uImage to FLASH with

            
            	 the GRMON utility before even starting u-boot.


            config UBOOT_ENTRY_ADDR

            
            	hex "uImage Entry Address"

            
            	default 0xf0004000

            
            	---help---

            
            	 Do not change this unless you know what you're doing. This is

            
            	 hardcoded by the SPARC32 and LEON port.


            	 This is the virtual address u-boot jumps to when booting the Linux

            
            	 Kernel.


            endmenu

            
            endif


            endmenu


            menu "Bus options (PCI etc.)"

            
            config SBUS

            
            	bool

            
            	default y


            config SBUSCHAR

            
            	bool

            
            	default y


            config SUN_LDOMS

            
            	bool "Sun Logical Domains support"

            
            	depends on SPARC64

            
            	help

            
            	  Say Y here is you want to support virtual devices via

            
            	  Logical Domains.


            config PCI

            
            	bool "Support for PCI and PS/2 keyboard/mouse"

            
            	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 is needed for all JavaStation's (including MrCoffee),

            
            	  CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.

            
            	  All of these platforms are extremely obscure, so say N if unsure.


            config PCI_DOMAINS

            
            	def_bool PCI if SPARC64


            config PCI_SYSCALL

            
            	def_bool PCI


            config PCIC_PCI

            
            	bool

            
            	depends on PCI && SPARC32 && !SPARC_LEON

            
            	default y


            config LEON_PCI

            
            	bool

            
            	depends on PCI && SPARC_LEON

            
            	default y


            config SPARC_GRPCI1

            
            	bool "GRPCI Host Bridge Support"

            
            	depends on LEON_PCI

            
            	default y

            
            	help

            
            	  Say Y here to include the GRPCI Host Bridge Driver. The GRPCI

            
            	  PCI host controller is typically found in GRLIB SPARC32/LEON

            
            	  systems. The driver has one property (all_pci_errors) controlled

            
            	  from the bootloader that makes the GRPCI to generate interrupts

            
            	  on detected PCI Parity and System errors.


            config SPARC_GRPCI2

            
            	bool "GRPCI2 Host Bridge Support"

            
            	depends on LEON_PCI

            
            	default y

            
            	help

            
            	  Say Y here to include the GRPCI2 Host Bridge Driver.


            source "drivers/pci/Kconfig"


            source "drivers/pcmcia/Kconfig"


            config SUN_OPENPROMFS

            
            	tristate "Openprom tree appears in /proc/openprom"

            
            	help

            
            	  If you say Y, the OpenPROM device tree will be available as a

            
            	  virtual file system, which you can mount to /proc/openprom by "mount

            
            	  -t openpromfs none /proc/openprom".


            	  To compile the /proc/openprom support as a module, choose M here: the

            
            	  module will be called openpromfs.


            	  Only choose N if you know in advance that you will not need to modify

            
            	  OpenPROM settings on the running system.


            # Makefile helpers

            
            config SPARC64_PCI

            
            	bool

            
            	default y

            
            	depends on SPARC64 && PCI


            config SPARC64_PCI_MSI

            
            	bool

            
            	default y

            
            	depends on SPARC64_PCI && PCI_MSI


            endmenu


            config COMPAT

            
            	bool

            
            	depends on SPARC64

            
            	default y

            
            	select COMPAT_BINFMT_ELF

            
            	select HAVE_UID16

            
            	select ARCH_WANT_OLD_COMPAT_IPC

            
            	select COMPAT_OLD_SIGACTION


            config SYSVIPC_COMPAT

            
            	bool

            
            	depends on COMPAT && SYSVIPC

            
            	default y


            source "drivers/sbus/char/Kconfig"
	config 64BIT
	bool "64-bit kernel" if "$(ARCH)" = "sparc"
	default "$(ARCH)" = "sparc64"
	help
	SPARC is a family of RISC microprocessors designed and marketed by
	Sun Microsystems, incorporated. They are very widely found in Sun
	workstations and clones.

	Say yes to build a 64-bit kernel - formerly known as sparc64
	Say no to build a 32-bit kernel - formerly known as sparc

	config SPARC
	bool
	default y
	select ARCH_MIGHT_HAVE_PC_PARPORT if SPARC64 && PCI
	select ARCH_MIGHT_HAVE_PC_SERIO
	select OF
	select OF_PROMTREE
	select HAVE_IDE
	select HAVE_OPROFILE
	select HAVE_ARCH_KGDB if !SMP \|\| SPARC64
	select HAVE_ARCH_TRACEHOOK
	select HAVE_EXIT_THREAD
	select SYSCTL_EXCEPTION_TRACE
	select RTC_CLASS
	select RTC_DRV_M48T59
	select RTC_SYSTOHC
	select HAVE_ARCH_JUMP_LABEL if SPARC64
	select GENERIC_IRQ_SHOW
	select ARCH_WANT_IPC_PARSE_VERSION
	select GENERIC_PCI_IOMAP
	select HAVE_NMI_WATCHDOG if SPARC64
	select HAVE_CBPF_JIT if SPARC32
	select HAVE_EBPF_JIT if SPARC64
	select HAVE_DEBUG_BUGVERBOSE
	select GENERIC_SMP_IDLE_THREAD
	select GENERIC_CLOCKEVENTS
	select GENERIC_STRNCPY_FROM_USER
	select GENERIC_STRNLEN_USER
	select MODULES_USE_ELF_RELA
	select ODD_RT_SIGACTION
	select OLD_SIGSUSPEND
	select ARCH_HAS_SG_CHAIN
	select CPU_NO_EFFICIENT_FFS
	select LOCKDEP_SMALL if LOCKDEP
	select NEED_DMA_MAP_STATE
	select NEED_SG_DMA_LENGTH
	select HAVE_MEMBLOCK
	select NO_BOOTMEM

	config SPARC32
	def_bool !64BIT
	select ARCH_HAS_SYNC_DMA_FOR_CPU
	select DMA_NONCOHERENT_OPS
	select GENERIC_ATOMIC64
	select CLZ_TAB
	select HAVE_UID16
	select OLD_SIGACTION

	config SPARC64
	def_bool 64BIT
	select HAVE_FUNCTION_TRACER
	select HAVE_FUNCTION_GRAPH_TRACER
	select HAVE_KRETPROBES
	select HAVE_KPROBES
	select HAVE_RCU_TABLE_FREE if SMP
	select HAVE_MEMBLOCK_NODE_MAP
	select HAVE_ARCH_TRANSPARENT_HUGEPAGE
	select HAVE_DYNAMIC_FTRACE
	select HAVE_FTRACE_MCOUNT_RECORD
	select HAVE_SYSCALL_TRACEPOINTS
	select HAVE_CONTEXT_TRACKING
	select HAVE_DEBUG_KMEMLEAK
	select IOMMU_HELPER
	select SPARSE_IRQ
	select RTC_DRV_CMOS
	select RTC_DRV_BQ4802
	select RTC_DRV_SUN4V
	select RTC_DRV_STARFIRE
	select HAVE_PERF_EVENTS
	select PERF_USE_VMALLOC
	select IRQ_PREFLOW_FASTEOI
	select ARCH_HAVE_NMI_SAFE_CMPXCHG
	select HAVE_C_RECORDMCOUNT
	select HAVE_ARCH_AUDITSYSCALL
	select ARCH_SUPPORTS_ATOMIC_RMW
	select HAVE_NMI
	select HAVE_REGS_AND_STACK_ACCESS_API
	select ARCH_USE_QUEUED_RWLOCKS
	select ARCH_USE_QUEUED_SPINLOCKS
	select GENERIC_TIME_VSYSCALL
	select ARCH_CLOCKSOURCE_DATA
	select ARCH_HAS_PTE_SPECIAL

	config ARCH_DEFCONFIG
	string
	default "arch/sparc/configs/sparc32_defconfig" if SPARC32
	default "arch/sparc/configs/sparc64_defconfig" if SPARC64

	config ARCH_PROC_KCORE_TEXT
	def_bool y

	config CPU_BIG_ENDIAN
	def_bool y

	config ARCH_ATU
	bool
	default y if SPARC64

	config STACKTRACE_SUPPORT
	bool
	default y if SPARC64

	config LOCKDEP_SUPPORT
	bool
	default y if SPARC64

	config ARCH_HIBERNATION_POSSIBLE
	def_bool y if SPARC64

	config AUDIT_ARCH
	bool
	default y

	config HAVE_SETUP_PER_CPU_AREA
	def_bool y if SPARC64

	config NEED_PER_CPU_EMBED_FIRST_CHUNK
	def_bool y if SPARC64

	config NEED_PER_CPU_PAGE_FIRST_CHUNK
	def_bool y if SPARC64

	config MMU
	bool
	default y

	config HIGHMEM
	bool
	default y if SPARC32

	config ZONE_DMA
	bool
	default y if SPARC32

	config GENERIC_ISA_DMA
	bool
	default y if SPARC32

	config ARCH_SUPPORTS_DEBUG_PAGEALLOC
	def_bool y if SPARC64

	config PGTABLE_LEVELS
	default 4 if 64BIT
	default 3

	config ARCH_SUPPORTS_UPROBES
	def_bool y if SPARC64

	menu "Processor type and features"

	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 uni- and multiprocessor
	machines, but will use only one CPU of a multiprocessor machine. If
	you say Y here, the kernel will run on many, but not all,
	uniprocessor machines. On a uniprocessor machine, the kernel
	will run faster if you say N here.

	People using multiprocessor machines who say Y here should also say
	Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
	Management" code will be disabled if you say Y here.

	See also <file:Documentation/lockup-watchdogs.txt> and the SMP-HOWTO
	available at <http://www.tldp.org/docs.html#howto>.

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

	config NR_CPUS
	int "Maximum number of CPUs"
	depends on SMP
	range 2 32 if SPARC32
	range 2 4096 if SPARC64
	default 32 if SPARC32
	default 4096 if SPARC64

	source kernel/Kconfig.hz

	config RWSEM_GENERIC_SPINLOCK
	bool
	default y if SPARC32

	config RWSEM_XCHGADD_ALGORITHM
	bool
	default y if SPARC64

	config GENERIC_HWEIGHT
	bool
	default y

	config GENERIC_CALIBRATE_DELAY
	bool
	default y

	config ARCH_MAY_HAVE_PC_FDC
	bool
	default y

	config EMULATED_CMPXCHG
	bool
	default y if SPARC32
	help
	Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
	is emulated, and therefore it is not completely atomic.

	# Makefile helpers
	config SPARC32_SMP
	bool
	default y
	depends on SPARC32 && SMP

	config SPARC64_SMP
	bool
	default y
	depends on SPARC64 && SMP

	config EARLYFB
	bool "Support for early boot text console"
	default y
	depends on SPARC64
	help
	Say Y here to enable a faster early framebuffer boot console.

	config SECCOMP
	bool "Enable seccomp to safely compute untrusted bytecode"
	depends on SPARC64 && 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.

	config HOTPLUG_CPU
	bool "Support for hot-pluggable CPUs"
	depends on SPARC64 && SMP
	help
	Say Y here to experiment with turning CPUs off and on. CPUs
	can be controlled through /sys/devices/system/cpu/cpu#.
	Say N if you want to disable CPU hotplug.

	if SPARC64
	source "drivers/cpufreq/Kconfig"
	endif

	config US3_MC
	tristate "UltraSPARC-III Memory Controller driver"
	depends on SPARC64
	default y
	help
	This adds a driver for the UltraSPARC-III memory controller.
	Loading this driver allows exact mnemonic strings to be
	printed in the event of a memory error, so that the faulty DIMM
	on the motherboard can be matched to the error.

	If in doubt, say Y, as this information can be very useful.

	# Global things across all Sun machines.
	config GENERIC_LOCKBREAK
	bool
	default y
	depends on SPARC64 && SMP && PREEMPT

	config NUMA
	bool "NUMA support"
	depends on SPARC64 && SMP

	config NODES_SHIFT
	int "Maximum NUMA Nodes (as a power of 2)"
	range 4 5 if SPARC64
	default "5"
	depends on NEED_MULTIPLE_NODES
	help
	Specify the maximum number of NUMA Nodes available on the target
	system. Increases memory reserved to accommodate various tables.

	# 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 ARCH_SELECT_MEMORY_MODEL
	def_bool y if SPARC64

	config ARCH_SPARSEMEM_ENABLE
	def_bool y if SPARC64
	select SPARSEMEM_VMEMMAP_ENABLE

	config ARCH_SPARSEMEM_DEFAULT
	def_bool y if SPARC64

	config FORCE_MAX_ZONEORDER
	int "Maximum zone order"
	default "13"
	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 13 means that the largest free memory block is 2^12 pages.

	if SPARC64
	source "kernel/power/Kconfig"
	endif

	config SCHED_SMT
	bool "SMT (Hyperthreading) scheduler support"
	depends on SPARC64 && SMP
	default y
	help
	SMT scheduler support improves the CPU scheduler's decision making
	when dealing with SPARC cpus at a cost of slightly increased overhead
	in some places. If unsure say N here.

	config SCHED_MC
	bool "Multi-core scheduler support"
	depends on SPARC64 && SMP
	default y
	help
	Multi-core scheduler support improves the CPU scheduler's decision
	making when dealing with multi-core CPU chips at a cost of slightly
	increased overhead in some places. If unsure say N here.

	config CMDLINE_BOOL
	bool "Default bootloader kernel arguments"
	depends on SPARC64

	config CMDLINE
	string "Initial kernel command string"
	depends on CMDLINE_BOOL
	default "console=ttyS0,9600 root=/dev/sda1"
	help
	Say Y here if you want to be able to pass default arguments to
	the kernel. This will be overridden by the bootloader, if you
	use one (such as SILO). This is most useful if you want to boot
	a kernel from TFTP, and want default options to be available
	with having them passed on the command line.

	NOTE: This option WILL override the PROM bootargs setting!

	config SUN_PM
	bool
	default y if SPARC32
	help
	Enable power management and CPU standby features on supported
	SPARC platforms.

	config SPARC_LED
	tristate "Sun4m LED driver"
	depends on SPARC32
	help
	This driver toggles the front-panel LED on sun4m systems
	in a user-specifiable manner. Its state can be probed
	by reading /proc/led and its blinking mode can be changed
	via writes to /proc/led

	config SERIAL_CONSOLE
	bool
	depends on SPARC32
	default y
	---help---
	If you say Y here, it will be possible to use a serial port as the
	system console (the system console is the device which receives all
	kernel messages and warnings and which allows logins in single user
	mode). This could be useful if some terminal or printer is connected
	to that serial port.

	Even if you say Y here, the currently visible virtual console
	(/dev/tty0) will still be used as the system console by default, but
	you can alter that using a kernel command line option such as
	"console=ttyS1". (Try "man bootparam" or see the documentation of
	your boot loader (silo) about how to pass options to the kernel at
	boot time.)

	If you don't have a graphics card installed and you say Y here, the
	kernel will automatically use the first serial line, /dev/ttyS0, as
	system console.

	If unsure, say N.

	config SPARC_LEON
	bool "Sparc Leon processor family"
	depends on SPARC32
	select USB_EHCI_BIG_ENDIAN_MMIO
	select USB_EHCI_BIG_ENDIAN_DESC
	select USB_UHCI_BIG_ENDIAN_MMIO
	select USB_UHCI_BIG_ENDIAN_DESC
	---help---
	If you say Y here if you are running on a SPARC-LEON processor.
	The LEON processor is a synthesizable VHDL model of the
	SPARC-v8 standard. LEON is part of the GRLIB collection of
	IP cores that are distributed under GPL. GRLIB can be downloaded
	from www.gaisler.com. You can download a sparc-linux cross-compilation
	toolchain at www.gaisler.com.

	if SPARC_LEON
	menu "U-Boot options"

	config UBOOT_LOAD_ADDR
	hex "uImage Load Address"
	default 0x40004000
	---help---
	U-Boot kernel load address, the address in physical address space
	where u-boot will place the Linux kernel before booting it.
	This address is normally the base address of main memory + 0x4000.

	config UBOOT_FLASH_ADDR
	hex "uImage.o Load Address"
	default 0x00080000
	---help---
	Optional setting only affecting the uImage.o ELF-image used to
	download the uImage file to the target using a ELF-loader other than
	U-Boot. It may for example be used to download an uImage to FLASH with
	the GRMON utility before even starting u-boot.

	config UBOOT_ENTRY_ADDR
	hex "uImage Entry Address"
	default 0xf0004000
	---help---
	Do not change this unless you know what you're doing. This is
	hardcoded by the SPARC32 and LEON port.

	This is the virtual address u-boot jumps to when booting the Linux
	Kernel.

	endmenu
	endif

	endmenu

	menu "Bus options (PCI etc.)"
	config SBUS
	bool
	default y

	config SBUSCHAR
	bool
	default y

	config SUN_LDOMS
	bool "Sun Logical Domains support"
	depends on SPARC64
	help
	Say Y here is you want to support virtual devices via
	Logical Domains.

	config PCI
	bool "Support for PCI and PS/2 keyboard/mouse"
	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 is needed for all JavaStation's (including MrCoffee),
	CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
	All of these platforms are extremely obscure, so say N if unsure.

	config PCI_DOMAINS
	def_bool PCI if SPARC64

	config PCI_SYSCALL
	def_bool PCI

	config PCIC_PCI
	bool
	depends on PCI && SPARC32 && !SPARC_LEON
	default y

	config LEON_PCI
	bool
	depends on PCI && SPARC_LEON
	default y

	config SPARC_GRPCI1
	bool "GRPCI Host Bridge Support"
	depends on LEON_PCI
	default y
	help
	Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
	PCI host controller is typically found in GRLIB SPARC32/LEON
	systems. The driver has one property (all_pci_errors) controlled
	from the bootloader that makes the GRPCI to generate interrupts
	on detected PCI Parity and System errors.

	config SPARC_GRPCI2
	bool "GRPCI2 Host Bridge Support"
	depends on LEON_PCI
	default y
	help
	Say Y here to include the GRPCI2 Host Bridge Driver.

	source "drivers/pci/Kconfig"

	source "drivers/pcmcia/Kconfig"

	config SUN_OPENPROMFS
	tristate "Openprom tree appears in /proc/openprom"
	help
	If you say Y, the OpenPROM device tree will be available as a
	virtual file system, which you can mount to /proc/openprom by "mount
	-t openpromfs none /proc/openprom".

	To compile the /proc/openprom support as a module, choose M here: the
	module will be called openpromfs.

	Only choose N if you know in advance that you will not need to modify
	OpenPROM settings on the running system.

	# Makefile helpers
	config SPARC64_PCI
	bool
	default y
	depends on SPARC64 && PCI

	config SPARC64_PCI_MSI
	bool
	default y
	depends on SPARC64_PCI && PCI_MSI

	endmenu

	config COMPAT
	bool
	depends on SPARC64
	default y
	select COMPAT_BINFMT_ELF
	select HAVE_UID16
	select ARCH_WANT_OLD_COMPAT_IPC
	select COMPAT_OLD_SIGACTION

	config SYSVIPC_COMPAT
	bool
	depends on COMPAT && SYSVIPC
	default y

	source "drivers/sbus/char/Kconfig"