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
46 select ARCH_USE_CMPXCHG_LOCKREF
49 The Itanium Processor Family is Intel's 64-bit successor to
50 the 32-bit X86 line. The IA-64 Linux project has a home
51 page at <http://www.linuxia64.org/> and a mailing list at
52 <linux-ia64@vger.kernel.org>.
56 select ATA_NONSTANDARD if ATA
61 depends on !IA64_SGI_SN2
71 config ARCH_DMA_ADDR_T_64BIT
74 config NEED_DMA_MAP_STATE
77 config NEED_SG_DMA_LENGTH
83 config STACKTRACE_SUPPORT
86 config GENERIC_LOCKBREAK
89 config RWSEM_XCHGADD_ALGORITHM
93 config HUGETLB_PAGE_SIZE_VARIABLE
95 depends on HUGETLB_PAGE
98 config GENERIC_CALIBRATE_DELAY
102 config HAVE_SETUP_PER_CPU_AREA
114 config SCHED_OMIT_FRAME_POINTER
118 config IA64_UNCACHED_ALLOCATOR
120 select GENERIC_ALLOCATOR
122 config ARCH_USES_PG_UNCACHED
124 depends on IA64_UNCACHED_ALLOCATOR
130 menuconfig PARAVIRT_GUEST
131 bool "Paravirtualized guest support"
134 Say Y here to get to see options related to running Linux under
135 various hypervisors. This option alone does not add any kernel code.
137 If you say N, all options in this submenu will be skipped and disabled.
142 bool "Enable paravirtualization code"
143 depends on PARAVIRT_GUEST
146 This changes the kernel so it can modify itself when it is run
147 under a hypervisor, potentially improving performance significantly
148 over full virtualization. However, when run without a hypervisor
149 the kernel is theoretically slower and slightly larger.
152 source "arch/ia64/xen/Kconfig"
167 This selects the system type of your hardware. A "generic" kernel
168 will run on any supported IA-64 system. However, if you configure
169 a kernel for your specific system, it will be faster and smaller.
171 generic For any supported IA-64 system
172 DIG-compliant For DIG ("Developer's Interface Guide") compliant systems
173 DIG+Intel+IOMMU For DIG systems with Intel IOMMU
174 HP-zx1/sx1000 For HP systems
175 HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices.
176 SGI-SN2 For SGI Altix systems
177 SGI-UV For SGI UV systems
178 Ski-simulator For the HP simulator <http://www.hpl.hp.com/research/linux/ski/>
179 Xen-domU For xen domU system
181 If you don't know what to do, choose "generic".
188 bool "DIG+Intel+IOMMU"
195 Build a kernel that runs on HP zx1 and sx1000 systems. This adds
196 support for the HP I/O MMU.
198 config IA64_HP_ZX1_SWIOTLB
199 bool "HP-zx1/sx1000 with software I/O TLB"
202 Build a kernel that runs on HP zx1 and sx1000 systems even when they
203 have broken PCI devices which cannot DMA to full 32 bits. Apart
204 from support for the HP I/O MMU, this includes support for the software
205 I/O TLB, which allows supporting the broken devices at the expense of
206 wasting some kernel memory (about 2MB by default).
213 Selecting this option will optimize the kernel for use on sn2 based
214 systems, but the resulting kernel binary will not run on other
215 types of ia64 systems. If you have an SGI Altix system, it's safe
216 to select this option. If in doubt, select ia64 generic support
225 Selecting this option will optimize the kernel for use on UV based
226 systems, but the resulting kernel binary will not run on other
227 types of ia64 systems. If you have an SGI UV system, it's safe
228 to select this option. If in doubt, select ia64 generic support
235 config IA64_XEN_GUEST
240 Build a kernel that runs on Xen guest domain. At this moment only
241 16KB page size in supported.
246 prompt "Processor type"
252 Select your IA-64 processor type. The default is Itanium.
253 This choice is safe for all IA-64 systems, but may not perform
254 optimally on systems with, say, Itanium 2 or newer processors.
259 Select this to configure for an Itanium 2 (McKinley) processor.
264 prompt "Kernel page size"
265 default IA64_PAGE_SIZE_16KB
267 config IA64_PAGE_SIZE_4KB
270 This lets you select the page size of the kernel. For best IA-64
271 performance, a page size of 8KB or 16KB is recommended. For best
272 IA-32 compatibility, a page size of 4KB should be selected (the vast
273 majority of IA-32 binaries work perfectly fine with a larger page
274 size). For Itanium 2 or newer systems, a page size of 64KB can also
277 4KB For best IA-32 compatibility
278 8KB For best IA-64 performance
279 16KB For best IA-64 performance
280 64KB Requires Itanium 2 or newer processor.
282 If you don't know what to do, choose 16KB.
284 config IA64_PAGE_SIZE_8KB
287 config IA64_PAGE_SIZE_16KB
290 config IA64_PAGE_SIZE_64KB
297 prompt "Page Table Levels"
304 depends on !IA64_PAGE_SIZE_64KB
315 source kernel/Kconfig.hz
323 # align cache-sensitive data to 128 bytes
324 config IA64_L1_CACHE_SHIFT
326 default "7" if MCKINLEY
327 default "6" if ITANIUM
330 bool "Cyclone (EXA) Time Source support"
332 Say Y here to enable support for IBM EXA Cyclone time source.
333 If you're unsure, answer N.
337 depends on !IA64_HP_SIM
340 config FORCE_MAX_ZONEORDER
341 int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE
342 range 11 17 if !HUGETLB_PAGE
343 default "17" if HUGETLB_PAGE
347 bool "Symmetric multi-processing support"
348 select USE_GENERIC_SMP_HELPERS
350 This enables support for systems with more than one CPU. If you have
351 a system with only one CPU, say N. If you have a system with more
354 If you say N here, the kernel will run on single and multiprocessor
355 systems, but will use only one CPU of a multiprocessor system. If
356 you say Y here, the kernel will run on many, but not all,
357 single processor systems. On a single processor system, the kernel
358 will run faster if you say N here.
360 See also the SMP-HOWTO available at
361 <http://www.tldp.org/docs.html#howto>.
363 If you don't know what to do here, say N.
366 int "Maximum number of CPUs (2-4096)"
371 You should set this to the number of CPUs in your system, but
372 keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
373 only use 2 CPUs on a >2 CPU system. Setting this to a value larger
374 than 64 will cause the use of a CPU mask array, causing a small
378 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. As of this writing the exact hardware
570 interface is strongly in flux, so no good recommendation can be
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)