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
115 config SCHED_OMIT_FRAME_POINTER
119 config IA64_UNCACHED_ALLOCATOR
121 select GENERIC_ALLOCATOR
123 config ARCH_USES_PG_UNCACHED
125 depends on IA64_UNCACHED_ALLOCATOR
131 menuconfig PARAVIRT_GUEST
132 bool "Paravirtualized guest support"
135 Say Y here to get to see options related to running Linux under
136 various hypervisors. This option alone does not add any kernel code.
138 If you say N, all options in this submenu will be skipped and disabled.
143 bool "Enable paravirtualization code"
144 depends on PARAVIRT_GUEST
147 This changes the kernel so it can modify itself when it is run
148 under a hypervisor, potentially improving performance significantly
149 over full virtualization. However, when run without a hypervisor
150 the kernel is theoretically slower and slightly larger.
153 source "arch/ia64/xen/Kconfig"
168 This selects the system type of your hardware. A "generic" kernel
169 will run on any supported IA-64 system. However, if you configure
170 a kernel for your specific system, it will be faster and smaller.
172 generic For any supported IA-64 system
173 DIG-compliant For DIG ("Developer's Interface Guide") compliant systems
174 DIG+Intel+IOMMU For DIG systems with Intel IOMMU
175 HP-zx1/sx1000 For HP systems
176 HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices.
177 SGI-SN2 For SGI Altix systems
178 SGI-UV For SGI UV systems
179 Ski-simulator For the HP simulator <http://www.hpl.hp.com/research/linux/ski/>
180 Xen-domU For xen domU system
182 If you don't know what to do, choose "generic".
189 bool "DIG+Intel+IOMMU"
196 Build a kernel that runs on HP zx1 and sx1000 systems. This adds
197 support for the HP I/O MMU.
199 config IA64_HP_ZX1_SWIOTLB
200 bool "HP-zx1/sx1000 with software I/O TLB"
203 Build a kernel that runs on HP zx1 and sx1000 systems even when they
204 have broken PCI devices which cannot DMA to full 32 bits. Apart
205 from support for the HP I/O MMU, this includes support for the software
206 I/O TLB, which allows supporting the broken devices at the expense of
207 wasting some kernel memory (about 2MB by default).
214 Selecting this option will optimize the kernel for use on sn2 based
215 systems, but the resulting kernel binary will not run on other
216 types of ia64 systems. If you have an SGI Altix system, it's safe
217 to select this option. If in doubt, select ia64 generic support
226 Selecting this option will optimize the kernel for use on UV based
227 systems, but the resulting kernel binary will not run on other
228 types of ia64 systems. If you have an SGI UV system, it's safe
229 to select this option. If in doubt, select ia64 generic support
236 config IA64_XEN_GUEST
241 Build a kernel that runs on Xen guest domain. At this moment only
242 16KB page size in supported.
247 prompt "Processor type"
253 Select your IA-64 processor type. The default is Itanium.
254 This choice is safe for all IA-64 systems, but may not perform
255 optimally on systems with, say, Itanium 2 or newer processors.
260 Select this to configure for an Itanium 2 (McKinley) processor.
265 prompt "Kernel page size"
266 default IA64_PAGE_SIZE_16KB
268 config IA64_PAGE_SIZE_4KB
271 This lets you select the page size of the kernel. For best IA-64
272 performance, a page size of 8KB or 16KB is recommended. For best
273 IA-32 compatibility, a page size of 4KB should be selected (the vast
274 majority of IA-32 binaries work perfectly fine with a larger page
275 size). For Itanium 2 or newer systems, a page size of 64KB can also
278 4KB For best IA-32 compatibility
279 8KB For best IA-64 performance
280 16KB For best IA-64 performance
281 64KB Requires Itanium 2 or newer processor.
283 If you don't know what to do, choose 16KB.
285 config IA64_PAGE_SIZE_8KB
288 config IA64_PAGE_SIZE_16KB
291 config IA64_PAGE_SIZE_64KB
298 prompt "Page Table Levels"
305 depends on !IA64_PAGE_SIZE_64KB
316 source kernel/Kconfig.hz
324 # align cache-sensitive data to 128 bytes
325 config IA64_L1_CACHE_SHIFT
327 default "7" if MCKINLEY
328 default "6" if ITANIUM
331 bool "Cyclone (EXA) Time Source support"
333 Say Y here to enable support for IBM EXA Cyclone time source.
334 If you're unsure, answer N.
338 depends on !IA64_HP_SIM
341 config FORCE_MAX_ZONEORDER
342 int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE
343 range 11 17 if !HUGETLB_PAGE
344 default "17" if HUGETLB_PAGE
348 bool "Symmetric multi-processing support"
349 select USE_GENERIC_SMP_HELPERS
351 This enables support for systems with more than one CPU. If you have
352 a system with only one CPU, say N. If you have a system with more
355 If you say N here, the kernel will run on single and multiprocessor
356 systems, but will use only one CPU of a multiprocessor system. If
357 you say Y here, the kernel will run on many, but not all,
358 single processor systems. On a single processor system, the kernel
359 will run faster if you say N here.
361 See also the SMP-HOWTO available at
362 <http://www.tldp.org/docs.html#howto>.
364 If you don't know what to do here, say N.
367 int "Maximum number of CPUs (2-4096)"
372 You should set this to the number of CPUs in your system, but
373 keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
374 only use 2 CPUs on a >2 CPU system. Setting this to a value larger
375 than 64 will cause the use of a CPU mask array, causing a small
379 bool "Support for hot-pluggable CPUs"
384 Say Y here to experiment with turning CPUs off and on. CPUs
385 can be controlled through /sys/devices/system/cpu/cpu#.
386 Say N if you want to disable CPU hotplug.
388 config ARCH_ENABLE_MEMORY_HOTPLUG
391 config ARCH_ENABLE_MEMORY_HOTREMOVE
395 bool "SMT scheduler support"
398 Improves the CPU scheduler's decision making when dealing with
399 Intel IA64 chips with MultiThreading at a cost of slightly increased
400 overhead in some places. If unsure say N here.
402 config PERMIT_BSP_REMOVE
403 bool "Support removal of Bootstrap Processor"
404 depends on HOTPLUG_CPU
407 Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
410 config FORCE_CPEI_RETARGET
411 bool "Force assumption that CPEI can be re-targeted"
412 depends on PERMIT_BSP_REMOVE
415 Say Y if you need to force the assumption that CPEI can be re-targeted to
416 any cpu in the system. This hint is available via ACPI 3.0 specifications.
417 Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
418 This option it useful to enable this feature on older BIOS's as well.
419 You can also enable this by using boot command line option force_cpei=1.
421 source "kernel/Kconfig.preempt"
425 config ARCH_SELECT_MEMORY_MODEL
428 config ARCH_DISCONTIGMEM_ENABLE
431 Say Y to support efficient handling of discontiguous physical memory,
432 for architectures which are either NUMA (Non-Uniform Memory Access)
433 or have huge holes in the physical address space for other reasons.
434 See <file:Documentation/vm/numa> for more.
436 config ARCH_FLATMEM_ENABLE
439 config ARCH_SPARSEMEM_ENABLE
441 depends on ARCH_DISCONTIGMEM_ENABLE
442 select SPARSEMEM_VMEMMAP_ENABLE
444 config ARCH_DISCONTIGMEM_DEFAULT
445 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
446 depends on ARCH_DISCONTIGMEM_ENABLE
450 depends on !IA64_HP_SIM && !FLATMEM
451 default y if IA64_SGI_SN2
452 select ACPI_NUMA if ACPI
454 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
455 Access). This option is for configuring high-end multiprocessor
456 server systems. If in doubt, say N.
459 int "Max num nodes shift(3-10)"
462 depends on NEED_MULTIPLE_NODES
464 This option specifies the maximum number of nodes in your SSI system.
465 MAX_NUMNODES will be 2^(This value).
466 If in doubt, use the default.
468 # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
469 # VIRTUAL_MEM_MAP has been retained for historical reasons.
470 config VIRTUAL_MEM_MAP
471 bool "Virtual mem map"
472 depends on !SPARSEMEM
473 default y if !IA64_HP_SIM
475 Say Y to compile the kernel with support for a virtual mem map.
476 This code also only takes effect if a memory hole of greater than
477 1 Gb is found during boot. You must turn this option on if you
478 require the DISCONTIGMEM option for your machine. If you are
483 default y if VIRTUAL_MEM_MAP
485 config HAVE_ARCH_EARLY_PFN_TO_NID
486 def_bool NUMA && SPARSEMEM
488 config HAVE_ARCH_NODEDATA_EXTENSION
492 config USE_PERCPU_NUMA_NODE_ID
496 config HAVE_MEMORYLESS_NODES
499 config ARCH_PROC_KCORE_TEXT
501 depends on PROC_KCORE
503 config IA64_MCA_RECOVERY
504 tristate "MCA recovery from errors other than TLB."
507 bool "Performance monitor support"
509 Selects whether support for the IA-64 performance monitor hardware
510 is included in the kernel. This makes some kernel data-structures a
511 little bigger and slows down execution a bit, but it is generally
512 a good idea to turn this on. If you're unsure, say Y.
515 tristate "/proc/pal support"
517 If you say Y here, you are able to get PAL (Processor Abstraction
518 Layer) information in /proc/pal. This contains useful information
519 about the processors in your systems, such as cache and TLB sizes
520 and the PAL firmware version in use.
522 To use this option, you have to ensure that the "/proc file system
523 support" (CONFIG_PROC_FS) is enabled, too.
525 config IA64_MC_ERR_INJECT
526 tristate "MC error injection support"
528 Adds support for MC error injection. If enabled, the kernel
529 will provide a sysfs interface for user applications to
530 call MC error injection PAL procedures to inject various errors.
531 This is a useful tool for MCA testing.
533 If you're unsure, do not select this option.
536 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
539 bool "ESI (Extensible SAL Interface) support"
541 If you say Y here, support is built into the kernel to
542 make ESI calls. ESI calls are used to support vendor-specific
543 firmware extensions, such as the ability to inject memory-errors
544 for test-purposes. If you're unsure, say N.
546 config IA64_HP_AML_NFW
547 bool "Support ACPI AML calls to native firmware"
549 This driver installs a global ACPI Operation Region handler for
550 region 0xA1. AML methods can use this OpRegion to call arbitrary
551 native firmware functions. The driver installs the OpRegion
552 handler if there is an HPQ5001 device or if the user supplies
553 the "force" module parameter, e.g., with the "aml_nfw.force"
554 kernel command line option.
556 source "drivers/sn/Kconfig"
559 bool "kexec system call"
560 depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
562 kexec is a system call that implements the ability to shutdown your
563 current kernel, and to start another kernel. It is like a reboot
564 but it is independent of the system firmware. And like a reboot
565 you can start any kernel with it, not just Linux.
567 The name comes from the similarity to the exec system call.
569 It is an ongoing process to be certain the hardware in a machine
570 is properly shutdown, so do not be surprised if this code does not
571 initially work for you. It may help to enable device hotplugging
572 support. As of this writing the exact hardware interface is
573 strongly in flux, so no good recommendation can be made.
576 bool "kernel crash dumps"
577 depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
579 Generate crash dump after being started by kexec.
581 source "drivers/firmware/Kconfig"
583 source "fs/Kconfig.binfmt"
587 menu "Power management and ACPI options"
589 source "kernel/power/Kconfig"
591 source "drivers/acpi/Kconfig"
595 source "arch/ia64/kernel/cpufreq/Kconfig"
603 menu "Bus options (PCI, PCMCIA)"
608 Real IA-64 machines all have PCI/PCI-X/PCI Express busses. Say Y
609 here unless you are using a simulator without PCI support.
617 source "drivers/pci/pcie/Kconfig"
619 source "drivers/pci/Kconfig"
621 source "drivers/pci/hotplug/Kconfig"
623 source "drivers/pcmcia/Kconfig"
631 source "drivers/Kconfig"
633 source "arch/ia64/hp/sim/Kconfig"
636 tristate "Memory special operations driver"
638 select IA64_UNCACHED_ALLOCATOR
640 If you have an ia64 and you want to enable memory special
641 operations support (formerly known as fetchop), say Y here,
646 source "arch/ia64/Kconfig.debug"
648 source "security/Kconfig"
650 source "crypto/Kconfig"
652 source "arch/ia64/kvm/Kconfig"
657 def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)