arch/ia64/Kconfig - linux - Git at Google


            
            # SPDX-License-Identifier: GPL-2.0

            
            config PGTABLE_LEVELS

            
            	int "Page Table Levels" if !IA64_PAGE_SIZE_64KB

            
            	range 3 4 if !IA64_PAGE_SIZE_64KB

            
            	default 3


            menu "Processor type and features"


            config IA64

            
            	bool

            
            	select ARCH_HAS_DMA_MARK_CLEAN

            
            	select ARCH_HAS_STRNCPY_FROM_USER

            
            	select ARCH_HAS_STRNLEN_USER

            
            	select ARCH_MIGHT_HAVE_PC_PARPORT

            
            	select ARCH_MIGHT_HAVE_PC_SERIO

            
            	select ACPI

            
            	select ACPI_NUMA if NUMA

            
            	select ARCH_ENABLE_MEMORY_HOTPLUG

            
            	select ARCH_ENABLE_MEMORY_HOTREMOVE

            
            	select ARCH_SUPPORTS_ACPI

            
            	select ACPI_SYSTEM_POWER_STATES_SUPPORT if ACPI

            
            	select ARCH_MIGHT_HAVE_ACPI_PDC if ACPI

            
            	select FORCE_PCI

            
            	select PCI_DOMAINS if PCI

            
            	select PCI_MSI

            
            	select PCI_SYSCALL if PCI

            
            	select HAVE_ASM_MODVERSIONS

            
            	select HAVE_UNSTABLE_SCHED_CLOCK

            
            	select HAVE_EXIT_THREAD

            
            	select HAVE_KPROBES

            
            	select HAVE_KRETPROBES

            
            	select HAVE_FTRACE_MCOUNT_RECORD

            
            	select HAVE_DYNAMIC_FTRACE if (!ITANIUM)

            
            	select HAVE_FUNCTION_TRACER

            
            	select TTY

            
            	select HAVE_ARCH_TRACEHOOK

            
            	select HAVE_VIRT_CPU_ACCOUNTING

            
            	select HUGETLB_PAGE_SIZE_VARIABLE if HUGETLB_PAGE

            
            	select VIRT_TO_BUS

            
            	select GENERIC_IRQ_PROBE

            
            	select GENERIC_PENDING_IRQ if SMP

            
            	select GENERIC_IRQ_SHOW

            
            	select GENERIC_IRQ_LEGACY

            
            	select ARCH_HAVE_NMI_SAFE_CMPXCHG

            
            	select GENERIC_IOMAP

            
            	select GENERIC_SMP_IDLE_THREAD

            
            	select ARCH_TASK_STRUCT_ON_STACK

            
            	select ARCH_TASK_STRUCT_ALLOCATOR

            
            	select ARCH_THREAD_STACK_ALLOCATOR

            
            	select ARCH_CLOCKSOURCE_DATA

            
            	select GENERIC_TIME_VSYSCALL

            
            	select LEGACY_TIMER_TICK

            
            	select SWIOTLB

            
            	select SYSCTL_ARCH_UNALIGN_NO_WARN

            
            	select HAVE_MOD_ARCH_SPECIFIC

            
            	select MODULES_USE_ELF_RELA

            
            	select ARCH_USE_CMPXCHG_LOCKREF

            
            	select HAVE_ARCH_AUDITSYSCALL

            
            	select NEED_DMA_MAP_STATE

            
            	select NEED_SG_DMA_LENGTH

            
            	select NUMA if !FLATMEM

            
            	select PCI_MSI_ARCH_FALLBACKS if PCI_MSI

            
            	select SET_FS

            
            	select ZONE_DMA32

            
            	default y

            
            	help

            
            	  The Itanium Processor Family is Intel's 64-bit successor to

            
            	  the 32-bit X86 line.  The IA-64 Linux project has a home

            
            	  page at <http://www.linuxia64.org/> and a mailing list at

            
            	  <linux-ia64@vger.kernel.org>.


            config 64BIT

            
            	bool

            
            	select ATA_NONSTANDARD if ATA

            
            	default y


            config MMU

            
            	bool

            
            	default y


            config STACKTRACE_SUPPORT

            
            	def_bool y


            config GENERIC_LOCKBREAK

            
            	def_bool n


            config GENERIC_CALIBRATE_DELAY

            
            	bool

            
            	default y


            config HAVE_SETUP_PER_CPU_AREA

            
            	def_bool y


            config DMI

            
            	bool

            
            	default y

            
            	select DMI_SCAN_MACHINE_NON_EFI_FALLBACK


            config EFI

            
            	bool

            
            	select UCS2_STRING

            
            	default y


            config SCHED_OMIT_FRAME_POINTER

            
            	bool

            
            	default y


            config IA64_UNCACHED_ALLOCATOR

            
            	bool

            
            	select GENERIC_ALLOCATOR


            config ARCH_USES_PG_UNCACHED

            
            	def_bool y

            
            	depends on IA64_UNCACHED_ALLOCATOR


            config AUDIT_ARCH

            
            	bool

            
            	default y


            choice

            
            	prompt "Processor type"

            
            	default ITANIUM


            config ITANIUM

            
            	bool "Itanium"

            
            	help

            
            	  Select your IA-64 processor type.  The default is Itanium.

            
            	  This choice is safe for all IA-64 systems, but may not perform

            
            	  optimally on systems with, say, Itanium 2 or newer processors.


            config MCKINLEY

            
            	bool "Itanium 2"

            
            	help

            
            	  Select this to configure for an Itanium 2 (McKinley) processor.


            endchoice


            choice

            
            	prompt "Kernel page size"

            
            	default IA64_PAGE_SIZE_16KB


            config IA64_PAGE_SIZE_4KB

            
            	bool "4KB"

            
            	help

            
            	  This lets you select the page size of the kernel.  For best IA-64

            
            	  performance, a page size of 8KB or 16KB is recommended.  For best

            
            	  IA-32 compatibility, a page size of 4KB should be selected (the vast

            
            	  majority of IA-32 binaries work perfectly fine with a larger page

            
            	  size).  For Itanium 2 or newer systems, a page size of 64KB can also

            
            	  be selected.


            	  4KB                For best IA-32 compatibility

            
            	  8KB                For best IA-64 performance

            
            	  16KB               For best IA-64 performance

            
            	  64KB               Requires Itanium 2 or newer processor.


            	  If you don't know what to do, choose 16KB.


            config IA64_PAGE_SIZE_8KB

            
            	bool "8KB"


            config IA64_PAGE_SIZE_16KB

            
            	bool "16KB"


            config IA64_PAGE_SIZE_64KB

            
            	depends on !ITANIUM

            
            	bool "64KB"


            endchoice


            source "kernel/Kconfig.hz"


            config IA64_BRL_EMU

            
            	bool

            
            	depends on ITANIUM

            
            	default y


            # align cache-sensitive data to 128 bytes

            
            config IA64_L1_CACHE_SHIFT

            
            	int

            
            	default "7" if MCKINLEY

            
            	default "6" if ITANIUM


            config IA64_SGI_UV

            
            	bool "SGI-UV support"

            
            	help

            
            	  Selecting this option will add specific support for running on SGI

            
            	  UV based systems.  If you have an SGI UV system or are building a

            
            	  distro kernel, select this option.


            config IA64_HP_SBA_IOMMU

            
            	bool "HP SBA IOMMU support"

            
            	select DMA_OPS

            
            	default y

            
            	help

            
            	  Say Y here to add support for the SBA IOMMU found on HP zx1 and

            
            	  sx1000 systems.  If you're unsure, answer Y.


            config IA64_CYCLONE

            
            	bool "Cyclone (EXA) Time Source support"

            
            	help

            
            	  Say Y here to enable support for IBM EXA Cyclone time source.

            
            	  If you're unsure, answer N.


            config FORCE_MAX_ZONEORDER

            
            	int "MAX_ORDER (11 - 17)"  if !HUGETLB_PAGE

            
            	range 11 17  if !HUGETLB_PAGE

            
            	default "17" if HUGETLB_PAGE

            
            	default "11"


            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

            
            	  systems, but will use only one CPU of a multiprocessor system.  If

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

            
            	  single processor systems.  On a single processor system, the kernel

            
            	  will run faster if you say N here.


            	  See also 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 (2-4096)"

            
            	range 2 4096

            
            	depends on SMP

            
            	default "4096"

            
            	help

            
            	  You should set this to the number of CPUs in your system, but

            
            	  keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but

            
            	  only use 2 CPUs on a >2 CPU system.  Setting this to a value larger

            
            	  than 64 will cause the use of a CPU mask array, causing a small

            
            	  performance hit.


            config HOTPLUG_CPU

            
            	bool "Support for hot-pluggable CPUs"

            
            	depends on SMP

            
            	default n

            
            	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.


            config SCHED_SMT

            
            	bool "SMT scheduler support"

            
            	depends on SMP

            
            	help

            
            	  Improves the CPU scheduler's decision making when dealing with

            
            	  Intel IA64 chips with MultiThreading at a cost of slightly increased

            
            	  overhead in some places. If unsure say N here.


            config PERMIT_BSP_REMOVE

            
            	bool "Support removal of Bootstrap Processor"

            
            	depends on HOTPLUG_CPU

            
            	default n

            
            	help

            
            	Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU

            
            	support.


            config FORCE_CPEI_RETARGET

            
            	bool "Force assumption that CPEI can be re-targeted"

            
            	depends on PERMIT_BSP_REMOVE

            
            	default n

            
            	help

            
            	Say Y if you need to force the assumption that CPEI can be re-targeted to

            
            	any cpu in the system. This hint is available via ACPI 3.0 specifications.

            
            	Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.

            
            	This option it useful to enable this feature on older BIOS's as well.

            
            	You can also enable this by using boot command line option force_cpei=1.


            config ARCH_SELECT_MEMORY_MODEL

            
            	def_bool y


            config ARCH_FLATMEM_ENABLE

            
            	def_bool y


            config ARCH_SPARSEMEM_ENABLE

            
            	def_bool y

            
            	select SPARSEMEM_VMEMMAP_ENABLE


            config ARCH_SPARSEMEM_DEFAULT

            
            	def_bool y

            
            	depends on ARCH_SPARSEMEM_ENABLE


            config NUMA

            
            	bool "NUMA support"

            
            	depends on !FLATMEM

            
            	select SMP

            
            	help

            
            	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory

            
            	  Access).  This option is for configuring high-end multiprocessor

            
            	  server systems.  If in doubt, say N.


            config NODES_SHIFT

            
            	int "Max num nodes shift(3-10)"

            
            	range 3 10

            
            	default "10"

            
            	depends on NUMA

            
            	help

            
            	  This option specifies the maximum number of nodes in your SSI system.

            
            	  MAX_NUMNODES will be 2^(This value).

            
            	  If in doubt, use the default.


            config HAVE_ARCH_NODEDATA_EXTENSION

            
            	def_bool y

            
            	depends on NUMA


            config USE_PERCPU_NUMA_NODE_ID

            
            	def_bool y

            
            	depends on NUMA


            config HAVE_MEMORYLESS_NODES

            
            	def_bool NUMA


            config ARCH_PROC_KCORE_TEXT

            
            	def_bool y

            
            	depends on PROC_KCORE


            config IA64_MCA_RECOVERY

            
            	tristate "MCA recovery from errors other than TLB."


            config IA64_PALINFO

            
            	tristate "/proc/pal support"

            
            	help

            
            	  If you say Y here, you are able to get PAL (Processor Abstraction

            
            	  Layer) information in /proc/pal.  This contains useful information

            
            	  about the processors in your systems, such as cache and TLB sizes

            
            	  and the PAL firmware version in use.


            	  To use this option, you have to ensure that the "/proc file system

            
            	  support" (CONFIG_PROC_FS) is enabled, too.


            config IA64_MC_ERR_INJECT

            
            	tristate "MC error injection support"

            
            	help

            
            	  Adds support for MC error injection. If enabled, the kernel

            
            	  will provide a sysfs interface for user applications to

            
            	  call MC error injection PAL procedures to inject various errors.

            
            	  This is a useful tool for MCA testing.


            	  If you're unsure, do not select this option.


            config IA64_ESI

            
            	bool "ESI (Extensible SAL Interface) support"

            
            	help

            
            	  If you say Y here, support is built into the kernel to

            
            	  make ESI calls.  ESI calls are used to support vendor-specific

            
            	  firmware extensions, such as the ability to inject memory-errors

            
            	  for test-purposes.  If you're unsure, say N.


            config IA64_HP_AML_NFW

            
            	bool "Support ACPI AML calls to native firmware"

            
            	help

            
            	  This driver installs a global ACPI Operation Region handler for

            
            	  region 0xA1.  AML methods can use this OpRegion to call arbitrary

            
            	  native firmware functions.  The driver installs the OpRegion

            
            	  handler if there is an HPQ5001 device or if the user supplies

            
            	  the "force" module parameter, e.g., with the "aml_nfw.force"

            
            	  kernel command line option.


            config KEXEC

            
            	bool "kexec system call"

            
            	depends on !SMP || HOTPLUG_CPU

            
            	select KEXEC_CORE

            
            	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.  As of this writing the exact hardware

            
            	  interface is strongly in flux, so no good recommendation can be

            
            	  made.


            config CRASH_DUMP

            
            	  bool "kernel crash dumps"

            
            	  depends on IA64_MCA_RECOVERY && (!SMP || HOTPLUG_CPU)

            
            	  help

            
            	    Generate crash dump after being started by kexec.


            endmenu


            menu "Power management and ACPI options"


            source "kernel/power/Kconfig"


            source "drivers/acpi/Kconfig"


            if PM

            
            menu "CPU Frequency scaling"

            
            source "drivers/cpufreq/Kconfig"

            
            endmenu

            
            endif


            endmenu


            config MSPEC

            
            	tristate "Memory special operations driver"

            
            	depends on IA64

            
            	select IA64_UNCACHED_ALLOCATOR

            
            	help

            
            	  If you have an ia64 and you want to enable memory special

            
            	  operations support (formerly known as fetchop), say Y here,

            
            	  otherwise say N.
	# SPDX-License-Identifier: GPL-2.0
	config PGTABLE_LEVELS
	int "Page Table Levels" if !IA64_PAGE_SIZE_64KB
	range 3 4 if !IA64_PAGE_SIZE_64KB
	default 3

	menu "Processor type and features"

	config IA64
	bool
	select ARCH_HAS_DMA_MARK_CLEAN
	select ARCH_HAS_STRNCPY_FROM_USER
	select ARCH_HAS_STRNLEN_USER
	select ARCH_MIGHT_HAVE_PC_PARPORT
	select ARCH_MIGHT_HAVE_PC_SERIO
	select ACPI
	select ACPI_NUMA if NUMA
	select ARCH_ENABLE_MEMORY_HOTPLUG
	select ARCH_ENABLE_MEMORY_HOTREMOVE
	select ARCH_SUPPORTS_ACPI
	select ACPI_SYSTEM_POWER_STATES_SUPPORT if ACPI
	select ARCH_MIGHT_HAVE_ACPI_PDC if ACPI
	select FORCE_PCI
	select PCI_DOMAINS if PCI
	select PCI_MSI
	select PCI_SYSCALL if PCI
	select HAVE_ASM_MODVERSIONS
	select HAVE_UNSTABLE_SCHED_CLOCK
	select HAVE_EXIT_THREAD
	select HAVE_KPROBES
	select HAVE_KRETPROBES
	select HAVE_FTRACE_MCOUNT_RECORD
	select HAVE_DYNAMIC_FTRACE if (!ITANIUM)
	select HAVE_FUNCTION_TRACER
	select TTY
	select HAVE_ARCH_TRACEHOOK
	select HAVE_VIRT_CPU_ACCOUNTING
	select HUGETLB_PAGE_SIZE_VARIABLE if HUGETLB_PAGE
	select VIRT_TO_BUS
	select GENERIC_IRQ_PROBE
	select GENERIC_PENDING_IRQ if SMP
	select GENERIC_IRQ_SHOW
	select GENERIC_IRQ_LEGACY
	select ARCH_HAVE_NMI_SAFE_CMPXCHG
	select GENERIC_IOMAP
	select GENERIC_SMP_IDLE_THREAD
	select ARCH_TASK_STRUCT_ON_STACK
	select ARCH_TASK_STRUCT_ALLOCATOR
	select ARCH_THREAD_STACK_ALLOCATOR
	select ARCH_CLOCKSOURCE_DATA
	select GENERIC_TIME_VSYSCALL
	select LEGACY_TIMER_TICK
	select SWIOTLB
	select SYSCTL_ARCH_UNALIGN_NO_WARN
	select HAVE_MOD_ARCH_SPECIFIC
	select MODULES_USE_ELF_RELA
	select ARCH_USE_CMPXCHG_LOCKREF
	select HAVE_ARCH_AUDITSYSCALL
	select NEED_DMA_MAP_STATE
	select NEED_SG_DMA_LENGTH
	select NUMA if !FLATMEM
	select PCI_MSI_ARCH_FALLBACKS if PCI_MSI
	select SET_FS
	select ZONE_DMA32
	default y
	help
	The Itanium Processor Family is Intel's 64-bit successor to
	the 32-bit X86 line. The IA-64 Linux project has a home
	page at <http://www.linuxia64.org/> and a mailing list at
	<linux-ia64@vger.kernel.org>.

	config 64BIT
	bool
	select ATA_NONSTANDARD if ATA
	default y

	config MMU
	bool
	default y

	config STACKTRACE_SUPPORT
	def_bool y

	config GENERIC_LOCKBREAK
	def_bool n

	config GENERIC_CALIBRATE_DELAY
	bool
	default y

	config HAVE_SETUP_PER_CPU_AREA
	def_bool y

	config DMI
	bool
	default y
	select DMI_SCAN_MACHINE_NON_EFI_FALLBACK

	config EFI
	bool
	select UCS2_STRING
	default y

	config SCHED_OMIT_FRAME_POINTER
	bool
	default y

	config IA64_UNCACHED_ALLOCATOR
	bool
	select GENERIC_ALLOCATOR

	config ARCH_USES_PG_UNCACHED
	def_bool y
	depends on IA64_UNCACHED_ALLOCATOR

	config AUDIT_ARCH
	bool
	default y

	choice
	prompt "Processor type"
	default ITANIUM

	config ITANIUM
	bool "Itanium"
	help
	Select your IA-64 processor type. The default is Itanium.
	This choice is safe for all IA-64 systems, but may not perform
	optimally on systems with, say, Itanium 2 or newer processors.

	config MCKINLEY
	bool "Itanium 2"
	help
	Select this to configure for an Itanium 2 (McKinley) processor.

	endchoice

	choice
	prompt "Kernel page size"
	default IA64_PAGE_SIZE_16KB

	config IA64_PAGE_SIZE_4KB
	bool "4KB"
	help
	This lets you select the page size of the kernel. For best IA-64
	performance, a page size of 8KB or 16KB is recommended. For best
	IA-32 compatibility, a page size of 4KB should be selected (the vast
	majority of IA-32 binaries work perfectly fine with a larger page
	size). For Itanium 2 or newer systems, a page size of 64KB can also
	be selected.

	4KB For best IA-32 compatibility
	8KB For best IA-64 performance
	16KB For best IA-64 performance
	64KB Requires Itanium 2 or newer processor.

	If you don't know what to do, choose 16KB.

	config IA64_PAGE_SIZE_8KB
	bool "8KB"

	config IA64_PAGE_SIZE_16KB
	bool "16KB"

	config IA64_PAGE_SIZE_64KB
	depends on !ITANIUM
	bool "64KB"

	endchoice

	source "kernel/Kconfig.hz"

	config IA64_BRL_EMU
	bool
	depends on ITANIUM
	default y

	# align cache-sensitive data to 128 bytes
	config IA64_L1_CACHE_SHIFT
	int
	default "7" if MCKINLEY
	default "6" if ITANIUM

	config IA64_SGI_UV
	bool "SGI-UV support"
	help
	Selecting this option will add specific support for running on SGI
	UV based systems. If you have an SGI UV system or are building a
	distro kernel, select this option.

	config IA64_HP_SBA_IOMMU
	bool "HP SBA IOMMU support"
	select DMA_OPS
	default y
	help
	Say Y here to add support for the SBA IOMMU found on HP zx1 and
	sx1000 systems. If you're unsure, answer Y.

	config IA64_CYCLONE
	bool "Cyclone (EXA) Time Source support"
	help
	Say Y here to enable support for IBM EXA Cyclone time source.
	If you're unsure, answer N.

	config FORCE_MAX_ZONEORDER
	int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE
	range 11 17 if !HUGETLB_PAGE
	default "17" if HUGETLB_PAGE
	default "11"

	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
	systems, but will use only one CPU of a multiprocessor system. If
	you say Y here, the kernel will run on many, but not all,
	single processor systems. On a single processor system, the kernel
	will run faster if you say N here.

	See also 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 (2-4096)"
	range 2 4096
	depends on SMP
	default "4096"
	help
	You should set this to the number of CPUs in your system, but
	keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
	only use 2 CPUs on a >2 CPU system. Setting this to a value larger
	than 64 will cause the use of a CPU mask array, causing a small
	performance hit.

	config HOTPLUG_CPU
	bool "Support for hot-pluggable CPUs"
	depends on SMP
	default n
	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.

	config SCHED_SMT
	bool "SMT scheduler support"
	depends on SMP
	help
	Improves the CPU scheduler's decision making when dealing with
	Intel IA64 chips with MultiThreading at a cost of slightly increased
	overhead in some places. If unsure say N here.

	config PERMIT_BSP_REMOVE
	bool "Support removal of Bootstrap Processor"
	depends on HOTPLUG_CPU
	default n
	help
	Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
	support.

	config FORCE_CPEI_RETARGET
	bool "Force assumption that CPEI can be re-targeted"
	depends on PERMIT_BSP_REMOVE
	default n
	help
	Say Y if you need to force the assumption that CPEI can be re-targeted to
	any cpu in the system. This hint is available via ACPI 3.0 specifications.
	Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
	This option it useful to enable this feature on older BIOS's as well.
	You can also enable this by using boot command line option force_cpei=1.

	config ARCH_SELECT_MEMORY_MODEL
	def_bool y

	config ARCH_FLATMEM_ENABLE
	def_bool y

	config ARCH_SPARSEMEM_ENABLE
	def_bool y
	select SPARSEMEM_VMEMMAP_ENABLE

	config ARCH_SPARSEMEM_DEFAULT
	def_bool y
	depends on ARCH_SPARSEMEM_ENABLE

	config NUMA
	bool "NUMA support"
	depends on !FLATMEM
	select SMP
	help
	Say Y to compile the kernel to support NUMA (Non-Uniform Memory
	Access). This option is for configuring high-end multiprocessor
	server systems. If in doubt, say N.

	config NODES_SHIFT
	int "Max num nodes shift(3-10)"
	range 3 10
	default "10"
	depends on NUMA
	help
	This option specifies the maximum number of nodes in your SSI system.
	MAX_NUMNODES will be 2^(This value).
	If in doubt, use the default.

	config HAVE_ARCH_NODEDATA_EXTENSION
	def_bool y
	depends on NUMA

	config USE_PERCPU_NUMA_NODE_ID
	def_bool y
	depends on NUMA

	config HAVE_MEMORYLESS_NODES
	def_bool NUMA

	config ARCH_PROC_KCORE_TEXT
	def_bool y
	depends on PROC_KCORE

	config IA64_MCA_RECOVERY
	tristate "MCA recovery from errors other than TLB."

	config IA64_PALINFO
	tristate "/proc/pal support"
	help
	If you say Y here, you are able to get PAL (Processor Abstraction
	Layer) information in /proc/pal. This contains useful information
	about the processors in your systems, such as cache and TLB sizes
	and the PAL firmware version in use.

	To use this option, you have to ensure that the "/proc file system
	support" (CONFIG_PROC_FS) is enabled, too.

	config IA64_MC_ERR_INJECT
	tristate "MC error injection support"
	help
	Adds support for MC error injection. If enabled, the kernel
	will provide a sysfs interface for user applications to
	call MC error injection PAL procedures to inject various errors.
	This is a useful tool for MCA testing.

	If you're unsure, do not select this option.

	config IA64_ESI
	bool "ESI (Extensible SAL Interface) support"
	help
	If you say Y here, support is built into the kernel to
	make ESI calls. ESI calls are used to support vendor-specific
	firmware extensions, such as the ability to inject memory-errors
	for test-purposes. If you're unsure, say N.

	config IA64_HP_AML_NFW
	bool "Support ACPI AML calls to native firmware"
	help
	This driver installs a global ACPI Operation Region handler for
	region 0xA1. AML methods can use this OpRegion to call arbitrary
	native firmware functions. The driver installs the OpRegion
	handler if there is an HPQ5001 device or if the user supplies
	the "force" module parameter, e.g., with the "aml_nfw.force"
	kernel command line option.

	config KEXEC
	bool "kexec system call"
	depends on !SMP \|\| HOTPLUG_CPU
	select KEXEC_CORE
	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. As of this writing the exact hardware
	interface is strongly in flux, so no good recommendation can be
	made.

	config CRASH_DUMP
	bool "kernel crash dumps"
	depends on IA64_MCA_RECOVERY && (!SMP \|\| HOTPLUG_CPU)
	help
	Generate crash dump after being started by kexec.

	endmenu

	menu "Power management and ACPI options"

	source "kernel/power/Kconfig"

	source "drivers/acpi/Kconfig"

	if PM
	menu "CPU Frequency scaling"
	source "drivers/cpufreq/Kconfig"
	endmenu
	endif

	endmenu

	config MSPEC
	tristate "Memory special operations driver"
	depends on IA64
	select IA64_UNCACHED_ALLOCATOR
	help
	If you have an ia64 and you want to enable memory special
	operations support (formerly known as fetchop), say Y here,
	otherwise say N.