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 HAVE_UNSTABLE_SCHED_CLOCK
16 select HAVE_KRETPROBES
17 select HAVE_FTRACE_MCOUNT_RECORD
18 select HAVE_DYNAMIC_FTRACE if (!ITANIUM)
19 select HAVE_FUNCTION_TRACER
22 select HAVE_ARCH_TRACEHOOK
23 select HAVE_DMA_API_DEBUG
25 select HAVE_MEMBLOCK_NODE_MAP
26 select HAVE_VIRT_CPU_ACCOUNTING
28 select ARCH_DISCARD_MEMBLOCK
29 select GENERIC_IRQ_PROBE
30 select GENERIC_PENDING_IRQ if SMP
31 select GENERIC_IRQ_SHOW
32 select ARCH_WANT_OPTIONAL_GPIOLIB
33 select ARCH_HAVE_NMI_SAFE_CMPXCHG
35 select GENERIC_SMP_IDLE_THREAD
37 select ARCH_TASK_STRUCT_ALLOCATOR
38 select ARCH_THREAD_INFO_ALLOCATOR
39 select ARCH_CLOCKSOURCE_DATA
40 select GENERIC_TIME_VSYSCALL_OLD
41 select SYSCTL_ARCH_UNALIGN_NO_WARN
42 select HAVE_MOD_ARCH_SPECIFIC
43 select MODULES_USE_ELF_RELA
44 select ARCH_USE_CMPXCHG_LOCKREF
47 The Itanium Processor Family is Intel's 64-bit successor to
48 the 32-bit X86 line. The IA-64 Linux project has a home
49 page at <http://www.linuxia64.org/> and a mailing list at
50 <linux-ia64@vger.kernel.org>.
54 select ATA_NONSTANDARD if ATA
59 depends on !IA64_SGI_SN2
69 config ARCH_DMA_ADDR_T_64BIT
72 config NEED_DMA_MAP_STATE
75 config NEED_SG_DMA_LENGTH
81 config STACKTRACE_SUPPORT
84 config GENERIC_LOCKBREAK
87 config RWSEM_XCHGADD_ALGORITHM
91 config HUGETLB_PAGE_SIZE_VARIABLE
93 depends on HUGETLB_PAGE
96 config GENERIC_CALIBRATE_DELAY
100 config HAVE_SETUP_PER_CPU_AREA
112 config SCHED_OMIT_FRAME_POINTER
116 config IA64_UNCACHED_ALLOCATOR
118 select GENERIC_ALLOCATOR
120 config ARCH_USES_PG_UNCACHED
122 depends on IA64_UNCACHED_ALLOCATOR
128 menuconfig PARAVIRT_GUEST
129 bool "Paravirtualized guest support"
132 Say Y here to get to see options related to running Linux under
133 various hypervisors. This option alone does not add any kernel code.
135 If you say N, all options in this submenu will be skipped and disabled.
140 bool "Enable paravirtualization code"
141 depends on PARAVIRT_GUEST
144 This changes the kernel so it can modify itself when it is run
145 under a hypervisor, potentially improving performance significantly
146 over full virtualization. However, when run without a hypervisor
147 the kernel is theoretically slower and slightly larger.
150 source "arch/ia64/xen/Kconfig"
165 This selects the system type of your hardware. A "generic" kernel
166 will run on any supported IA-64 system. However, if you configure
167 a kernel for your specific system, it will be faster and smaller.
169 generic For any supported IA-64 system
170 DIG-compliant For DIG ("Developer's Interface Guide") compliant systems
171 DIG+Intel+IOMMU For DIG systems with Intel IOMMU
172 HP-zx1/sx1000 For HP systems
173 HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices.
174 SGI-SN2 For SGI Altix systems
175 SGI-UV For SGI UV systems
176 Ski-simulator For the HP simulator <http://www.hpl.hp.com/research/linux/ski/>
177 Xen-domU For xen domU system
179 If you don't know what to do, choose "generic".
186 bool "DIG+Intel+IOMMU"
193 Build a kernel that runs on HP zx1 and sx1000 systems. This adds
194 support for the HP I/O MMU.
196 config IA64_HP_ZX1_SWIOTLB
197 bool "HP-zx1/sx1000 with software I/O TLB"
200 Build a kernel that runs on HP zx1 and sx1000 systems even when they
201 have broken PCI devices which cannot DMA to full 32 bits. Apart
202 from support for the HP I/O MMU, this includes support for the software
203 I/O TLB, which allows supporting the broken devices at the expense of
204 wasting some kernel memory (about 2MB by default).
211 Selecting this option will optimize the kernel for use on sn2 based
212 systems, but the resulting kernel binary will not run on other
213 types of ia64 systems. If you have an SGI Altix system, it's safe
214 to select this option. If in doubt, select ia64 generic support
223 Selecting this option will optimize the kernel for use on UV based
224 systems, but the resulting kernel binary will not run on other
225 types of ia64 systems. If you have an SGI UV system, it's safe
226 to select this option. If in doubt, select ia64 generic support
233 config IA64_XEN_GUEST
238 Build a kernel that runs on Xen guest domain. At this moment only
239 16KB page size in supported.
244 prompt "Processor type"
250 Select your IA-64 processor type. The default is Itanium.
251 This choice is safe for all IA-64 systems, but may not perform
252 optimally on systems with, say, Itanium 2 or newer processors.
257 Select this to configure for an Itanium 2 (McKinley) processor.
262 prompt "Kernel page size"
263 default IA64_PAGE_SIZE_16KB
265 config IA64_PAGE_SIZE_4KB
268 This lets you select the page size of the kernel. For best IA-64
269 performance, a page size of 8KB or 16KB is recommended. For best
270 IA-32 compatibility, a page size of 4KB should be selected (the vast
271 majority of IA-32 binaries work perfectly fine with a larger page
272 size). For Itanium 2 or newer systems, a page size of 64KB can also
275 4KB For best IA-32 compatibility
276 8KB For best IA-64 performance
277 16KB For best IA-64 performance
278 64KB Requires Itanium 2 or newer processor.
280 If you don't know what to do, choose 16KB.
282 config IA64_PAGE_SIZE_8KB
285 config IA64_PAGE_SIZE_16KB
288 config IA64_PAGE_SIZE_64KB
295 prompt "Page Table Levels"
302 depends on !IA64_PAGE_SIZE_64KB
313 source kernel/Kconfig.hz
321 # align cache-sensitive data to 128 bytes
322 config IA64_L1_CACHE_SHIFT
324 default "7" if MCKINLEY
325 default "6" if ITANIUM
328 bool "Cyclone (EXA) Time Source support"
330 Say Y here to enable support for IBM EXA Cyclone time source.
331 If you're unsure, answer N.
335 depends on !IA64_HP_SIM
338 config FORCE_MAX_ZONEORDER
339 int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE
340 range 11 17 if !HUGETLB_PAGE
341 default "17" if HUGETLB_PAGE
345 bool "Symmetric multi-processing support"
347 This enables support for systems with more than one CPU. If you have
348 a system with only one CPU, say N. If you have a system with more
351 If you say N here, the kernel will run on single and multiprocessor
352 systems, but will use only one CPU of a multiprocessor system. If
353 you say Y here, the kernel will run on many, but not all,
354 single processor systems. On a single processor system, the kernel
355 will run faster if you say N here.
357 See also the SMP-HOWTO available at
358 <http://www.tldp.org/docs.html#howto>.
360 If you don't know what to do here, say N.
363 int "Maximum number of CPUs (2-4096)"
368 You should set this to the number of CPUs in your system, but
369 keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
370 only use 2 CPUs on a >2 CPU system. Setting this to a value larger
371 than 64 will cause the use of a CPU mask array, causing a small
375 bool "Support for hot-pluggable CPUs"
379 Say Y here to experiment with turning CPUs off and on. CPUs
380 can be controlled through /sys/devices/system/cpu/cpu#.
381 Say N if you want to disable CPU hotplug.
383 config ARCH_ENABLE_MEMORY_HOTPLUG
386 config ARCH_ENABLE_MEMORY_HOTREMOVE
390 bool "SMT scheduler support"
393 Improves the CPU scheduler's decision making when dealing with
394 Intel IA64 chips with MultiThreading at a cost of slightly increased
395 overhead in some places. If unsure say N here.
397 config PERMIT_BSP_REMOVE
398 bool "Support removal of Bootstrap Processor"
399 depends on HOTPLUG_CPU
402 Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
405 config FORCE_CPEI_RETARGET
406 bool "Force assumption that CPEI can be re-targeted"
407 depends on PERMIT_BSP_REMOVE
410 Say Y if you need to force the assumption that CPEI can be re-targeted to
411 any cpu in the system. This hint is available via ACPI 3.0 specifications.
412 Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
413 This option it useful to enable this feature on older BIOS's as well.
414 You can also enable this by using boot command line option force_cpei=1.
416 source "kernel/Kconfig.preempt"
420 config ARCH_SELECT_MEMORY_MODEL
423 config ARCH_DISCONTIGMEM_ENABLE
426 Say Y to support efficient handling of discontiguous physical memory,
427 for architectures which are either NUMA (Non-Uniform Memory Access)
428 or have huge holes in the physical address space for other reasons.
429 See <file:Documentation/vm/numa> for more.
431 config ARCH_FLATMEM_ENABLE
434 config ARCH_SPARSEMEM_ENABLE
436 depends on ARCH_DISCONTIGMEM_ENABLE
437 select SPARSEMEM_VMEMMAP_ENABLE
439 config ARCH_DISCONTIGMEM_DEFAULT
440 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
441 depends on ARCH_DISCONTIGMEM_ENABLE
445 depends on !IA64_HP_SIM && !FLATMEM
446 default y if IA64_SGI_SN2
447 select ACPI_NUMA if ACPI
449 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
450 Access). This option is for configuring high-end multiprocessor
451 server systems. If in doubt, say N.
454 int "Max num nodes shift(3-10)"
457 depends on NEED_MULTIPLE_NODES
459 This option specifies the maximum number of nodes in your SSI system.
460 MAX_NUMNODES will be 2^(This value).
461 If in doubt, use the default.
463 # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
464 # VIRTUAL_MEM_MAP has been retained for historical reasons.
465 config VIRTUAL_MEM_MAP
466 bool "Virtual mem map"
467 depends on !SPARSEMEM
468 default y if !IA64_HP_SIM
470 Say Y to compile the kernel with support for a virtual mem map.
471 This code also only takes effect if a memory hole of greater than
472 1 Gb is found during boot. You must turn this option on if you
473 require the DISCONTIGMEM option for your machine. If you are
478 default y if VIRTUAL_MEM_MAP
480 config HAVE_ARCH_EARLY_PFN_TO_NID
481 def_bool NUMA && SPARSEMEM
483 config HAVE_ARCH_NODEDATA_EXTENSION
487 config USE_PERCPU_NUMA_NODE_ID
491 config HAVE_MEMORYLESS_NODES
494 config ARCH_PROC_KCORE_TEXT
496 depends on PROC_KCORE
498 config IA64_MCA_RECOVERY
499 tristate "MCA recovery from errors other than TLB."
502 bool "Performance monitor support"
504 Selects whether support for the IA-64 performance monitor hardware
505 is included in the kernel. This makes some kernel data-structures a
506 little bigger and slows down execution a bit, but it is generally
507 a good idea to turn this on. If you're unsure, say Y.
510 tristate "/proc/pal support"
512 If you say Y here, you are able to get PAL (Processor Abstraction
513 Layer) information in /proc/pal. This contains useful information
514 about the processors in your systems, such as cache and TLB sizes
515 and the PAL firmware version in use.
517 To use this option, you have to ensure that the "/proc file system
518 support" (CONFIG_PROC_FS) is enabled, too.
520 config IA64_MC_ERR_INJECT
521 tristate "MC error injection support"
523 Adds support for MC error injection. If enabled, the kernel
524 will provide a sysfs interface for user applications to
525 call MC error injection PAL procedures to inject various errors.
526 This is a useful tool for MCA testing.
528 If you're unsure, do not select this option.
531 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
534 bool "ESI (Extensible SAL Interface) support"
536 If you say Y here, support is built into the kernel to
537 make ESI calls. ESI calls are used to support vendor-specific
538 firmware extensions, such as the ability to inject memory-errors
539 for test-purposes. If you're unsure, say N.
541 config IA64_HP_AML_NFW
542 bool "Support ACPI AML calls to native firmware"
544 This driver installs a global ACPI Operation Region handler for
545 region 0xA1. AML methods can use this OpRegion to call arbitrary
546 native firmware functions. The driver installs the OpRegion
547 handler if there is an HPQ5001 device or if the user supplies
548 the "force" module parameter, e.g., with the "aml_nfw.force"
549 kernel command line option.
551 source "drivers/sn/Kconfig"
554 bool "kexec system call"
555 depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
557 kexec is a system call that implements the ability to shutdown your
558 current kernel, and to start another kernel. It is like a reboot
559 but it is independent of the system firmware. And like a reboot
560 you can start any kernel with it, not just Linux.
562 The name comes from the similarity to the exec system call.
564 It is an ongoing process to be certain the hardware in a machine
565 is properly shutdown, so do not be surprised if this code does not
566 initially work for you. As of this writing the exact hardware
567 interface is strongly in flux, so no good recommendation can be
571 bool "kernel crash dumps"
572 depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
574 Generate crash dump after being started by kexec.
576 source "drivers/firmware/Kconfig"
578 source "fs/Kconfig.binfmt"
582 menu "Power management and ACPI options"
584 source "kernel/power/Kconfig"
586 source "drivers/acpi/Kconfig"
589 menu "CPU Frequency scaling"
590 source "drivers/cpufreq/Kconfig"
598 menu "Bus options (PCI, PCMCIA)"
603 Real IA-64 machines all have PCI/PCI-X/PCI Express busses. Say Y
604 here unless you are using a simulator without PCI support.
612 source "drivers/pci/pcie/Kconfig"
614 source "drivers/pci/Kconfig"
616 source "drivers/pci/hotplug/Kconfig"
618 source "drivers/pcmcia/Kconfig"
626 source "drivers/Kconfig"
628 source "arch/ia64/hp/sim/Kconfig"
631 tristate "Memory special operations driver"
633 select IA64_UNCACHED_ALLOCATOR
635 If you have an ia64 and you want to enable memory special
636 operations support (formerly known as fetchop), say Y here,
641 source "arch/ia64/Kconfig.debug"
643 source "security/Kconfig"
645 source "crypto/Kconfig"
647 source "arch/ia64/kvm/Kconfig"
652 def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)