3 source "kernel/Kconfig.freezer"
5 menu "Processor type and features"
9 select ARCH_MIGHT_HAVE_PC_PARPORT
10 select ARCH_MIGHT_HAVE_PC_SERIO
11 select PCI if (!IA64_HP_SIM)
12 select ACPI if (!IA64_HP_SIM)
13 select ARCH_MIGHT_HAVE_ACPI_PDC if ACPI
14 select HAVE_UNSTABLE_SCHED_CLOCK
18 select HAVE_KRETPROBES
19 select HAVE_FTRACE_MCOUNT_RECORD
20 select HAVE_DYNAMIC_FTRACE if (!ITANIUM)
21 select HAVE_FUNCTION_TRACER
24 select HAVE_ARCH_TRACEHOOK
25 select HAVE_DMA_API_DEBUG
27 select HAVE_MEMBLOCK_NODE_MAP
28 select HAVE_VIRT_CPU_ACCOUNTING
29 select ARCH_HAS_SG_CHAIN
31 select ARCH_DISCARD_MEMBLOCK
32 select GENERIC_IRQ_PROBE
33 select GENERIC_PENDING_IRQ if SMP
34 select GENERIC_IRQ_SHOW
35 select GENERIC_IRQ_LEGACY
36 select ARCH_WANT_OPTIONAL_GPIOLIB
37 select ARCH_HAVE_NMI_SAFE_CMPXCHG
39 select GENERIC_SMP_IDLE_THREAD
41 select ARCH_TASK_STRUCT_ALLOCATOR
42 select ARCH_THREAD_INFO_ALLOCATOR
43 select ARCH_CLOCKSOURCE_DATA
44 select GENERIC_TIME_VSYSCALL_OLD
45 select SYSCTL_ARCH_UNALIGN_NO_WARN
46 select HAVE_MOD_ARCH_SPECIFIC
47 select MODULES_USE_ELF_RELA
48 select ARCH_USE_CMPXCHG_LOCKREF
49 select HAVE_ARCH_AUDITSYSCALL
52 The Itanium Processor Family is Intel's 64-bit successor to
53 the 32-bit X86 line. The IA-64 Linux project has a home
54 page at <http://www.linuxia64.org/> and a mailing list at
55 <linux-ia64@vger.kernel.org>.
59 select ATA_NONSTANDARD if ATA
64 depends on !IA64_SGI_SN2
74 config ARCH_DMA_ADDR_T_64BIT
77 config NEED_DMA_MAP_STATE
80 config NEED_SG_DMA_LENGTH
86 config STACKTRACE_SUPPORT
89 config GENERIC_LOCKBREAK
92 config RWSEM_XCHGADD_ALGORITHM
96 config HUGETLB_PAGE_SIZE_VARIABLE
98 depends on HUGETLB_PAGE
101 config GENERIC_CALIBRATE_DELAY
105 config HAVE_SETUP_PER_CPU_AREA
111 select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
118 config SCHED_OMIT_FRAME_POINTER
122 config IA64_UNCACHED_ALLOCATOR
124 select GENERIC_ALLOCATOR
126 config ARCH_USES_PG_UNCACHED
128 depends on IA64_UNCACHED_ALLOCATOR
134 menuconfig PARAVIRT_GUEST
135 bool "Paravirtualized guest support"
138 Say Y here to get to see options related to running Linux under
139 various hypervisors. This option alone does not add any kernel code.
141 If you say N, all options in this submenu will be skipped and disabled.
146 bool "Enable paravirtualization code"
147 depends on PARAVIRT_GUEST
150 This changes the kernel so it can modify itself when it is run
151 under a hypervisor, potentially improving performance significantly
152 over full virtualization. However, when run without a hypervisor
153 the kernel is theoretically slower and slightly larger.
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/>
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
239 prompt "Processor type"
245 Select your IA-64 processor type. The default is Itanium.
246 This choice is safe for all IA-64 systems, but may not perform
247 optimally on systems with, say, Itanium 2 or newer processors.
252 Select this to configure for an Itanium 2 (McKinley) processor.
257 prompt "Kernel page size"
258 default IA64_PAGE_SIZE_16KB
260 config IA64_PAGE_SIZE_4KB
263 This lets you select the page size of the kernel. For best IA-64
264 performance, a page size of 8KB or 16KB is recommended. For best
265 IA-32 compatibility, a page size of 4KB should be selected (the vast
266 majority of IA-32 binaries work perfectly fine with a larger page
267 size). For Itanium 2 or newer systems, a page size of 64KB can also
270 4KB For best IA-32 compatibility
271 8KB For best IA-64 performance
272 16KB For best IA-64 performance
273 64KB Requires Itanium 2 or newer processor.
275 If you don't know what to do, choose 16KB.
277 config IA64_PAGE_SIZE_8KB
280 config IA64_PAGE_SIZE_16KB
283 config IA64_PAGE_SIZE_64KB
290 prompt "Page Table Levels"
297 depends on !IA64_PAGE_SIZE_64KB
308 source kernel/Kconfig.hz
316 # align cache-sensitive data to 128 bytes
317 config IA64_L1_CACHE_SHIFT
319 default "7" if MCKINLEY
320 default "6" if ITANIUM
323 bool "Cyclone (EXA) Time Source support"
325 Say Y here to enable support for IBM EXA Cyclone time source.
326 If you're unsure, answer N.
330 depends on !IA64_HP_SIM
333 config FORCE_MAX_ZONEORDER
334 int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE
335 range 11 17 if !HUGETLB_PAGE
336 default "17" if HUGETLB_PAGE
340 bool "Symmetric multi-processing support"
342 This enables support for systems with more than one CPU. If you have
343 a system with only one CPU, say N. If you have a system with more
346 If you say N here, the kernel will run on single and multiprocessor
347 systems, but will use only one CPU of a multiprocessor system. If
348 you say Y here, the kernel will run on many, but not all,
349 single processor systems. On a single processor system, the kernel
350 will run faster if you say N here.
352 See also the SMP-HOWTO available at
353 <http://www.tldp.org/docs.html#howto>.
355 If you don't know what to do here, say N.
358 int "Maximum number of CPUs (2-4096)"
363 You should set this to the number of CPUs in your system, but
364 keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
365 only use 2 CPUs on a >2 CPU system. Setting this to a value larger
366 than 64 will cause the use of a CPU mask array, causing a small
370 bool "Support for hot-pluggable CPUs"
374 Say Y here to experiment with turning CPUs off and on. CPUs
375 can be controlled through /sys/devices/system/cpu/cpu#.
376 Say N if you want to disable CPU hotplug.
378 config ARCH_ENABLE_MEMORY_HOTPLUG
381 config ARCH_ENABLE_MEMORY_HOTREMOVE
385 bool "SMT scheduler support"
388 Improves the CPU scheduler's decision making when dealing with
389 Intel IA64 chips with MultiThreading at a cost of slightly increased
390 overhead in some places. If unsure say N here.
392 config PERMIT_BSP_REMOVE
393 bool "Support removal of Bootstrap Processor"
394 depends on HOTPLUG_CPU
397 Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
400 config FORCE_CPEI_RETARGET
401 bool "Force assumption that CPEI can be re-targeted"
402 depends on PERMIT_BSP_REMOVE
405 Say Y if you need to force the assumption that CPEI can be re-targeted to
406 any cpu in the system. This hint is available via ACPI 3.0 specifications.
407 Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
408 This option it useful to enable this feature on older BIOS's as well.
409 You can also enable this by using boot command line option force_cpei=1.
411 source "kernel/Kconfig.preempt"
415 config ARCH_SELECT_MEMORY_MODEL
418 config ARCH_DISCONTIGMEM_ENABLE
421 Say Y to support efficient handling of discontiguous physical memory,
422 for architectures which are either NUMA (Non-Uniform Memory Access)
423 or have huge holes in the physical address space for other reasons.
424 See <file:Documentation/vm/numa> for more.
426 config ARCH_FLATMEM_ENABLE
429 config ARCH_SPARSEMEM_ENABLE
431 depends on ARCH_DISCONTIGMEM_ENABLE
432 select SPARSEMEM_VMEMMAP_ENABLE
434 config ARCH_DISCONTIGMEM_DEFAULT
435 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
436 depends on ARCH_DISCONTIGMEM_ENABLE
440 depends on !IA64_HP_SIM && !FLATMEM
441 default y if IA64_SGI_SN2
442 select ACPI_NUMA if ACPI
444 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
445 Access). This option is for configuring high-end multiprocessor
446 server systems. If in doubt, say N.
449 int "Max num nodes shift(3-10)"
452 depends on NEED_MULTIPLE_NODES
454 This option specifies the maximum number of nodes in your SSI system.
455 MAX_NUMNODES will be 2^(This value).
456 If in doubt, use the default.
458 # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
459 # VIRTUAL_MEM_MAP has been retained for historical reasons.
460 config VIRTUAL_MEM_MAP
461 bool "Virtual mem map"
462 depends on !SPARSEMEM
463 default y if !IA64_HP_SIM
465 Say Y to compile the kernel with support for a virtual mem map.
466 This code also only takes effect if a memory hole of greater than
467 1 Gb is found during boot. You must turn this option on if you
468 require the DISCONTIGMEM option for your machine. If you are
473 default y if VIRTUAL_MEM_MAP
475 config HAVE_ARCH_EARLY_PFN_TO_NID
476 def_bool NUMA && SPARSEMEM
478 config HAVE_ARCH_NODEDATA_EXTENSION
482 config USE_PERCPU_NUMA_NODE_ID
486 config HAVE_MEMORYLESS_NODES
489 config ARCH_PROC_KCORE_TEXT
491 depends on PROC_KCORE
493 config IA64_MCA_RECOVERY
494 tristate "MCA recovery from errors other than TLB."
497 bool "Performance monitor support"
499 Selects whether support for the IA-64 performance monitor hardware
500 is included in the kernel. This makes some kernel data-structures a
501 little bigger and slows down execution a bit, but it is generally
502 a good idea to turn this on. If you're unsure, say Y.
505 tristate "/proc/pal support"
507 If you say Y here, you are able to get PAL (Processor Abstraction
508 Layer) information in /proc/pal. This contains useful information
509 about the processors in your systems, such as cache and TLB sizes
510 and the PAL firmware version in use.
512 To use this option, you have to ensure that the "/proc file system
513 support" (CONFIG_PROC_FS) is enabled, too.
515 config IA64_MC_ERR_INJECT
516 tristate "MC error injection support"
518 Adds support for MC error injection. If enabled, the kernel
519 will provide a sysfs interface for user applications to
520 call MC error injection PAL procedures to inject various errors.
521 This is a useful tool for MCA testing.
523 If you're unsure, do not select this option.
526 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
529 bool "ESI (Extensible SAL Interface) support"
531 If you say Y here, support is built into the kernel to
532 make ESI calls. ESI calls are used to support vendor-specific
533 firmware extensions, such as the ability to inject memory-errors
534 for test-purposes. If you're unsure, say N.
536 config IA64_HP_AML_NFW
537 bool "Support ACPI AML calls to native firmware"
539 This driver installs a global ACPI Operation Region handler for
540 region 0xA1. AML methods can use this OpRegion to call arbitrary
541 native firmware functions. The driver installs the OpRegion
542 handler if there is an HPQ5001 device or if the user supplies
543 the "force" module parameter, e.g., with the "aml_nfw.force"
544 kernel command line option.
546 source "drivers/sn/Kconfig"
549 bool "kexec system call"
550 depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
552 kexec is a system call that implements the ability to shutdown your
553 current kernel, and to start another kernel. It is like a reboot
554 but it is independent of the system firmware. And like a reboot
555 you can start any kernel with it, not just Linux.
557 The name comes from the similarity to the exec system call.
559 It is an ongoing process to be certain the hardware in a machine
560 is properly shutdown, so do not be surprised if this code does not
561 initially work for you. As of this writing the exact hardware
562 interface is strongly in flux, so no good recommendation can be
566 bool "kernel crash dumps"
567 depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
569 Generate crash dump after being started by kexec.
571 source "drivers/firmware/Kconfig"
573 source "fs/Kconfig.binfmt"
577 menu "Power management and ACPI options"
579 source "kernel/power/Kconfig"
581 source "drivers/acpi/Kconfig"
584 menu "CPU Frequency scaling"
585 source "drivers/cpufreq/Kconfig"
593 menu "Bus options (PCI, PCMCIA)"
598 Real IA-64 machines all have PCI/PCI-X/PCI Express busses. Say Y
599 here unless you are using a simulator without PCI support.
607 source "drivers/pci/pcie/Kconfig"
609 source "drivers/pci/Kconfig"
611 source "drivers/pci/hotplug/Kconfig"
613 source "drivers/pcmcia/Kconfig"
621 source "drivers/Kconfig"
623 source "arch/ia64/hp/sim/Kconfig"
626 tristate "Memory special operations driver"
628 select IA64_UNCACHED_ALLOCATOR
630 If you have an ia64 and you want to enable memory special
631 operations support (formerly known as fetchop), say Y here,
636 source "arch/ia64/Kconfig.debug"
638 source "security/Kconfig"
640 source "crypto/Kconfig"
645 def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)