3 source "kernel/Kconfig.freezer"
5 menu "Processor type and features"
9 select PCI if (!IA64_HP_SIM)
10 select ACPI if (!IA64_HP_SIM)
11 select PM if (!IA64_HP_SIM)
12 select ARCH_SUPPORTS_MSI
13 select HAVE_UNSTABLE_SCHED_CLOCK
17 select HAVE_KRETPROBES
18 select HAVE_FTRACE_MCOUNT_RECORD
19 select HAVE_DYNAMIC_FTRACE if (!ITANIUM)
20 select HAVE_FUNCTION_TRACER
23 select HAVE_ARCH_TRACEHOOK
24 select HAVE_DMA_API_DEBUG
25 select HAVE_GENERIC_HARDIRQS
27 select HAVE_MEMBLOCK_NODE_MAP
28 select HAVE_VIRT_CPU_ACCOUNTING
30 select ARCH_DISCARD_MEMBLOCK
31 select GENERIC_IRQ_PROBE
32 select GENERIC_PENDING_IRQ if SMP
33 select GENERIC_IRQ_SHOW
34 select ARCH_WANT_OPTIONAL_GPIOLIB
35 select ARCH_HAVE_NMI_SAFE_CMPXCHG
37 select GENERIC_SMP_IDLE_THREAD
39 select ARCH_TASK_STRUCT_ALLOCATOR
40 select ARCH_THREAD_INFO_ALLOCATOR
41 select ARCH_CLOCKSOURCE_DATA
42 select GENERIC_TIME_VSYSCALL_OLD
43 select SYSCTL_ARCH_UNALIGN_NO_WARN
44 select HAVE_MOD_ARCH_SPECIFIC
45 select MODULES_USE_ELF_RELA
48 The Itanium Processor Family is Intel's 64-bit successor to
49 the 32-bit X86 line. The IA-64 Linux project has a home
50 page at <http://www.linuxia64.org/> and a mailing list at
51 <linux-ia64@vger.kernel.org>.
55 select ATA_NONSTANDARD if ATA
60 depends on !IA64_SGI_SN2
70 config ARCH_DMA_ADDR_T_64BIT
73 config NEED_DMA_MAP_STATE
76 config NEED_SG_DMA_LENGTH
82 config STACKTRACE_SUPPORT
85 config GENERIC_LOCKBREAK
88 config RWSEM_XCHGADD_ALGORITHM
92 config HUGETLB_PAGE_SIZE_VARIABLE
94 depends on HUGETLB_PAGE
97 config GENERIC_CALIBRATE_DELAY
101 config HAVE_SETUP_PER_CPU_AREA
113 config SCHED_OMIT_FRAME_POINTER
117 config IA64_UNCACHED_ALLOCATOR
119 select GENERIC_ALLOCATOR
121 config ARCH_USES_PG_UNCACHED
123 depends on IA64_UNCACHED_ALLOCATOR
129 menuconfig PARAVIRT_GUEST
130 bool "Paravirtualized guest support"
133 Say Y here to get to see options related to running Linux under
134 various hypervisors. This option alone does not add any kernel code.
136 If you say N, all options in this submenu will be skipped and disabled.
141 bool "Enable paravirtualization code"
142 depends on PARAVIRT_GUEST
145 This changes the kernel so it can modify itself when it is run
146 under a hypervisor, potentially improving performance significantly
147 over full virtualization. However, when run without a hypervisor
148 the kernel is theoretically slower and slightly larger.
151 source "arch/ia64/xen/Kconfig"
166 This selects the system type of your hardware. A "generic" kernel
167 will run on any supported IA-64 system. However, if you configure
168 a kernel for your specific system, it will be faster and smaller.
170 generic For any supported IA-64 system
171 DIG-compliant For DIG ("Developer's Interface Guide") compliant systems
172 DIG+Intel+IOMMU For DIG systems with Intel IOMMU
173 HP-zx1/sx1000 For HP systems
174 HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices.
175 SGI-SN2 For SGI Altix systems
176 SGI-UV For SGI UV systems
177 Ski-simulator For the HP simulator <http://www.hpl.hp.com/research/linux/ski/>
178 Xen-domU For xen domU system
180 If you don't know what to do, choose "generic".
187 bool "DIG+Intel+IOMMU"
194 Build a kernel that runs on HP zx1 and sx1000 systems. This adds
195 support for the HP I/O MMU.
197 config IA64_HP_ZX1_SWIOTLB
198 bool "HP-zx1/sx1000 with software I/O TLB"
201 Build a kernel that runs on HP zx1 and sx1000 systems even when they
202 have broken PCI devices which cannot DMA to full 32 bits. Apart
203 from support for the HP I/O MMU, this includes support for the software
204 I/O TLB, which allows supporting the broken devices at the expense of
205 wasting some kernel memory (about 2MB by default).
212 Selecting this option will optimize the kernel for use on sn2 based
213 systems, but the resulting kernel binary will not run on other
214 types of ia64 systems. If you have an SGI Altix system, it's safe
215 to select this option. If in doubt, select ia64 generic support
224 Selecting this option will optimize the kernel for use on UV based
225 systems, but the resulting kernel binary will not run on other
226 types of ia64 systems. If you have an SGI UV system, it's safe
227 to select this option. If in doubt, select ia64 generic support
234 config IA64_XEN_GUEST
239 Build a kernel that runs on Xen guest domain. At this moment only
240 16KB page size in supported.
245 prompt "Processor type"
251 Select your IA-64 processor type. The default is Itanium.
252 This choice is safe for all IA-64 systems, but may not perform
253 optimally on systems with, say, Itanium 2 or newer processors.
258 Select this to configure for an Itanium 2 (McKinley) processor.
263 prompt "Kernel page size"
264 default IA64_PAGE_SIZE_16KB
266 config IA64_PAGE_SIZE_4KB
269 This lets you select the page size of the kernel. For best IA-64
270 performance, a page size of 8KB or 16KB is recommended. For best
271 IA-32 compatibility, a page size of 4KB should be selected (the vast
272 majority of IA-32 binaries work perfectly fine with a larger page
273 size). For Itanium 2 or newer systems, a page size of 64KB can also
276 4KB For best IA-32 compatibility
277 8KB For best IA-64 performance
278 16KB For best IA-64 performance
279 64KB Requires Itanium 2 or newer processor.
281 If you don't know what to do, choose 16KB.
283 config IA64_PAGE_SIZE_8KB
286 config IA64_PAGE_SIZE_16KB
289 config IA64_PAGE_SIZE_64KB
296 prompt "Page Table Levels"
303 depends on !IA64_PAGE_SIZE_64KB
314 source kernel/Kconfig.hz
322 # align cache-sensitive data to 128 bytes
323 config IA64_L1_CACHE_SHIFT
325 default "7" if MCKINLEY
326 default "6" if ITANIUM
329 bool "Cyclone (EXA) Time Source support"
331 Say Y here to enable support for IBM EXA Cyclone time source.
332 If you're unsure, answer N.
336 depends on !IA64_HP_SIM
339 config FORCE_MAX_ZONEORDER
340 int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE
341 range 11 17 if !HUGETLB_PAGE
342 default "17" if HUGETLB_PAGE
346 bool "Symmetric multi-processing support"
347 select USE_GENERIC_SMP_HELPERS
349 This enables support for systems with more than one CPU. If you have
350 a system with only one CPU, say N. If you have a system with more
353 If you say N here, the kernel will run on single and multiprocessor
354 systems, but will use only one CPU of a multiprocessor system. If
355 you say Y here, the kernel will run on many, but not all,
356 single processor systems. On a single processor system, the kernel
357 will run faster if you say N here.
359 See also the SMP-HOWTO available at
360 <http://www.tldp.org/docs.html#howto>.
362 If you don't know what to do here, say N.
365 int "Maximum number of CPUs (2-4096)"
370 You should set this to the number of CPUs in your system, but
371 keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
372 only use 2 CPUs on a >2 CPU system. Setting this to a value larger
373 than 64 will cause the use of a CPU mask array, causing a small
377 bool "Support for hot-pluggable CPUs"
382 Say Y here to experiment with turning CPUs off and on. CPUs
383 can be controlled through /sys/devices/system/cpu/cpu#.
384 Say N if you want to disable CPU hotplug.
386 config ARCH_ENABLE_MEMORY_HOTPLUG
389 config ARCH_ENABLE_MEMORY_HOTREMOVE
393 bool "SMT scheduler support"
396 Improves the CPU scheduler's decision making when dealing with
397 Intel IA64 chips with MultiThreading at a cost of slightly increased
398 overhead in some places. If unsure say N here.
400 config PERMIT_BSP_REMOVE
401 bool "Support removal of Bootstrap Processor"
402 depends on HOTPLUG_CPU
405 Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
408 config FORCE_CPEI_RETARGET
409 bool "Force assumption that CPEI can be re-targeted"
410 depends on PERMIT_BSP_REMOVE
413 Say Y if you need to force the assumption that CPEI can be re-targeted to
414 any cpu in the system. This hint is available via ACPI 3.0 specifications.
415 Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
416 This option it useful to enable this feature on older BIOS's as well.
417 You can also enable this by using boot command line option force_cpei=1.
419 source "kernel/Kconfig.preempt"
423 config ARCH_SELECT_MEMORY_MODEL
426 config ARCH_DISCONTIGMEM_ENABLE
429 Say Y to support efficient handling of discontiguous physical memory,
430 for architectures which are either NUMA (Non-Uniform Memory Access)
431 or have huge holes in the physical address space for other reasons.
432 See <file:Documentation/vm/numa> for more.
434 config ARCH_FLATMEM_ENABLE
437 config ARCH_SPARSEMEM_ENABLE
439 depends on ARCH_DISCONTIGMEM_ENABLE
440 select SPARSEMEM_VMEMMAP_ENABLE
442 config ARCH_DISCONTIGMEM_DEFAULT
443 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
444 depends on ARCH_DISCONTIGMEM_ENABLE
448 depends on !IA64_HP_SIM && !FLATMEM
449 default y if IA64_SGI_SN2
450 select ACPI_NUMA if ACPI
452 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
453 Access). This option is for configuring high-end multiprocessor
454 server systems. If in doubt, say N.
457 int "Max num nodes shift(3-10)"
460 depends on NEED_MULTIPLE_NODES
462 This option specifies the maximum number of nodes in your SSI system.
463 MAX_NUMNODES will be 2^(This value).
464 If in doubt, use the default.
466 # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
467 # VIRTUAL_MEM_MAP has been retained for historical reasons.
468 config VIRTUAL_MEM_MAP
469 bool "Virtual mem map"
470 depends on !SPARSEMEM
471 default y if !IA64_HP_SIM
473 Say Y to compile the kernel with support for a virtual mem map.
474 This code also only takes effect if a memory hole of greater than
475 1 Gb is found during boot. You must turn this option on if you
476 require the DISCONTIGMEM option for your machine. If you are
481 default y if VIRTUAL_MEM_MAP
483 config HAVE_ARCH_EARLY_PFN_TO_NID
484 def_bool NUMA && SPARSEMEM
486 config HAVE_ARCH_NODEDATA_EXTENSION
490 config USE_PERCPU_NUMA_NODE_ID
494 config HAVE_MEMORYLESS_NODES
497 config ARCH_PROC_KCORE_TEXT
499 depends on PROC_KCORE
501 config IA64_MCA_RECOVERY
502 tristate "MCA recovery from errors other than TLB."
505 bool "Performance monitor support"
507 Selects whether support for the IA-64 performance monitor hardware
508 is included in the kernel. This makes some kernel data-structures a
509 little bigger and slows down execution a bit, but it is generally
510 a good idea to turn this on. If you're unsure, say Y.
513 tristate "/proc/pal support"
515 If you say Y here, you are able to get PAL (Processor Abstraction
516 Layer) information in /proc/pal. This contains useful information
517 about the processors in your systems, such as cache and TLB sizes
518 and the PAL firmware version in use.
520 To use this option, you have to ensure that the "/proc file system
521 support" (CONFIG_PROC_FS) is enabled, too.
523 config IA64_MC_ERR_INJECT
524 tristate "MC error injection support"
526 Adds support for MC error injection. If enabled, the kernel
527 will provide a sysfs interface for user applications to
528 call MC error injection PAL procedures to inject various errors.
529 This is a useful tool for MCA testing.
531 If you're unsure, do not select this option.
534 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
537 bool "ESI (Extensible SAL Interface) support"
539 If you say Y here, support is built into the kernel to
540 make ESI calls. ESI calls are used to support vendor-specific
541 firmware extensions, such as the ability to inject memory-errors
542 for test-purposes. If you're unsure, say N.
544 config IA64_HP_AML_NFW
545 bool "Support ACPI AML calls to native firmware"
547 This driver installs a global ACPI Operation Region handler for
548 region 0xA1. AML methods can use this OpRegion to call arbitrary
549 native firmware functions. The driver installs the OpRegion
550 handler if there is an HPQ5001 device or if the user supplies
551 the "force" module parameter, e.g., with the "aml_nfw.force"
552 kernel command line option.
554 source "drivers/sn/Kconfig"
557 bool "kexec system call"
558 depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
560 kexec is a system call that implements the ability to shutdown your
561 current kernel, and to start another kernel. It is like a reboot
562 but it is independent of the system firmware. And like a reboot
563 you can start any kernel with it, not just Linux.
565 The name comes from the similarity to the exec system call.
567 It is an ongoing process to be certain the hardware in a machine
568 is properly shutdown, so do not be surprised if this code does not
569 initially work for you. It may help to enable device hotplugging
570 support. As of this writing the exact hardware interface is
571 strongly in flux, so no good recommendation can be made.
574 bool "kernel crash dumps"
575 depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
577 Generate crash dump after being started by kexec.
579 source "drivers/firmware/Kconfig"
581 source "fs/Kconfig.binfmt"
585 menu "Power management and ACPI options"
587 source "kernel/power/Kconfig"
589 source "drivers/acpi/Kconfig"
592 menu "CPU Frequency scaling"
593 source "drivers/cpufreq/Kconfig"
601 menu "Bus options (PCI, PCMCIA)"
606 Real IA-64 machines all have PCI/PCI-X/PCI Express busses. Say Y
607 here unless you are using a simulator without PCI support.
615 source "drivers/pci/pcie/Kconfig"
617 source "drivers/pci/Kconfig"
619 source "drivers/pci/hotplug/Kconfig"
621 source "drivers/pcmcia/Kconfig"
629 source "drivers/Kconfig"
631 source "arch/ia64/hp/sim/Kconfig"
634 tristate "Memory special operations driver"
636 select IA64_UNCACHED_ALLOCATOR
638 If you have an ia64 and you want to enable memory special
639 operations support (formerly known as fetchop), say Y here,
644 source "arch/ia64/Kconfig.debug"
646 source "security/Kconfig"
648 source "crypto/Kconfig"
650 source "arch/ia64/kvm/Kconfig"
655 def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)