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 PM if (!IA64_HP_SIM)
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
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
108 select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
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.
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/>
178 If you don't know what to do, choose "generic".
185 bool "DIG+Intel+IOMMU"
192 Build a kernel that runs on HP zx1 and sx1000 systems. This adds
193 support for the HP I/O MMU.
195 config IA64_HP_ZX1_SWIOTLB
196 bool "HP-zx1/sx1000 with software I/O TLB"
199 Build a kernel that runs on HP zx1 and sx1000 systems even when they
200 have broken PCI devices which cannot DMA to full 32 bits. Apart
201 from support for the HP I/O MMU, this includes support for the software
202 I/O TLB, which allows supporting the broken devices at the expense of
203 wasting some kernel memory (about 2MB by default).
210 Selecting this option will optimize the kernel for use on sn2 based
211 systems, but the resulting kernel binary will not run on other
212 types of ia64 systems. If you have an SGI Altix system, it's safe
213 to select this option. If in doubt, select ia64 generic support
222 Selecting this option will optimize the kernel for use on UV based
223 systems, but the resulting kernel binary will not run on other
224 types of ia64 systems. If you have an SGI UV system, it's safe
225 to select this option. If in doubt, select ia64 generic support
235 prompt "Processor type"
241 Select your IA-64 processor type. The default is Itanium.
242 This choice is safe for all IA-64 systems, but may not perform
243 optimally on systems with, say, Itanium 2 or newer processors.
248 Select this to configure for an Itanium 2 (McKinley) processor.
253 prompt "Kernel page size"
254 default IA64_PAGE_SIZE_16KB
256 config IA64_PAGE_SIZE_4KB
259 This lets you select the page size of the kernel. For best IA-64
260 performance, a page size of 8KB or 16KB is recommended. For best
261 IA-32 compatibility, a page size of 4KB should be selected (the vast
262 majority of IA-32 binaries work perfectly fine with a larger page
263 size). For Itanium 2 or newer systems, a page size of 64KB can also
266 4KB For best IA-32 compatibility
267 8KB For best IA-64 performance
268 16KB For best IA-64 performance
269 64KB Requires Itanium 2 or newer processor.
271 If you don't know what to do, choose 16KB.
273 config IA64_PAGE_SIZE_8KB
276 config IA64_PAGE_SIZE_16KB
279 config IA64_PAGE_SIZE_64KB
286 prompt "Page Table Levels"
293 depends on !IA64_PAGE_SIZE_64KB
304 source kernel/Kconfig.hz
312 # align cache-sensitive data to 128 bytes
313 config IA64_L1_CACHE_SHIFT
315 default "7" if MCKINLEY
316 default "6" if ITANIUM
319 bool "Cyclone (EXA) Time Source support"
321 Say Y here to enable support for IBM EXA Cyclone time source.
322 If you're unsure, answer N.
326 depends on !IA64_HP_SIM
329 config FORCE_MAX_ZONEORDER
330 int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE
331 range 11 17 if !HUGETLB_PAGE
332 default "17" if HUGETLB_PAGE
336 bool "Symmetric multi-processing support"
338 This enables support for systems with more than one CPU. If you have
339 a system with only one CPU, say N. If you have a system with more
342 If you say N here, the kernel will run on single and multiprocessor
343 systems, but will use only one CPU of a multiprocessor system. If
344 you say Y here, the kernel will run on many, but not all,
345 single processor systems. On a single processor system, the kernel
346 will run faster if you say N here.
348 See also the SMP-HOWTO available at
349 <http://www.tldp.org/docs.html#howto>.
351 If you don't know what to do here, say N.
354 int "Maximum number of CPUs (2-4096)"
359 You should set this to the number of CPUs in your system, but
360 keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
361 only use 2 CPUs on a >2 CPU system. Setting this to a value larger
362 than 64 will cause the use of a CPU mask array, causing a small
366 bool "Support for hot-pluggable CPUs"
370 Say Y here to experiment with turning CPUs off and on. CPUs
371 can be controlled through /sys/devices/system/cpu/cpu#.
372 Say N if you want to disable CPU hotplug.
374 config ARCH_ENABLE_MEMORY_HOTPLUG
377 config ARCH_ENABLE_MEMORY_HOTREMOVE
381 bool "SMT scheduler support"
384 Improves the CPU scheduler's decision making when dealing with
385 Intel IA64 chips with MultiThreading at a cost of slightly increased
386 overhead in some places. If unsure say N here.
388 config PERMIT_BSP_REMOVE
389 bool "Support removal of Bootstrap Processor"
390 depends on HOTPLUG_CPU
393 Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
396 config FORCE_CPEI_RETARGET
397 bool "Force assumption that CPEI can be re-targeted"
398 depends on PERMIT_BSP_REMOVE
401 Say Y if you need to force the assumption that CPEI can be re-targeted to
402 any cpu in the system. This hint is available via ACPI 3.0 specifications.
403 Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
404 This option it useful to enable this feature on older BIOS's as well.
405 You can also enable this by using boot command line option force_cpei=1.
407 source "kernel/Kconfig.preempt"
411 config ARCH_SELECT_MEMORY_MODEL
414 config ARCH_DISCONTIGMEM_ENABLE
417 Say Y to support efficient handling of discontiguous physical memory,
418 for architectures which are either NUMA (Non-Uniform Memory Access)
419 or have huge holes in the physical address space for other reasons.
420 See <file:Documentation/vm/numa> for more.
422 config ARCH_FLATMEM_ENABLE
425 config ARCH_SPARSEMEM_ENABLE
427 depends on ARCH_DISCONTIGMEM_ENABLE
428 select SPARSEMEM_VMEMMAP_ENABLE
430 config ARCH_DISCONTIGMEM_DEFAULT
431 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
432 depends on ARCH_DISCONTIGMEM_ENABLE
436 depends on !IA64_HP_SIM && !FLATMEM
437 default y if IA64_SGI_SN2
438 select ACPI_NUMA if ACPI
440 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
441 Access). This option is for configuring high-end multiprocessor
442 server systems. If in doubt, say N.
445 int "Max num nodes shift(3-10)"
448 depends on NEED_MULTIPLE_NODES
450 This option specifies the maximum number of nodes in your SSI system.
451 MAX_NUMNODES will be 2^(This value).
452 If in doubt, use the default.
454 # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
455 # VIRTUAL_MEM_MAP has been retained for historical reasons.
456 config VIRTUAL_MEM_MAP
457 bool "Virtual mem map"
458 depends on !SPARSEMEM
459 default y if !IA64_HP_SIM
461 Say Y to compile the kernel with support for a virtual mem map.
462 This code also only takes effect if a memory hole of greater than
463 1 Gb is found during boot. You must turn this option on if you
464 require the DISCONTIGMEM option for your machine. If you are
469 default y if VIRTUAL_MEM_MAP
471 config HAVE_ARCH_EARLY_PFN_TO_NID
472 def_bool NUMA && SPARSEMEM
474 config HAVE_ARCH_NODEDATA_EXTENSION
478 config USE_PERCPU_NUMA_NODE_ID
482 config HAVE_MEMORYLESS_NODES
485 config ARCH_PROC_KCORE_TEXT
487 depends on PROC_KCORE
489 config IA64_MCA_RECOVERY
490 tristate "MCA recovery from errors other than TLB."
493 bool "Performance monitor support"
495 Selects whether support for the IA-64 performance monitor hardware
496 is included in the kernel. This makes some kernel data-structures a
497 little bigger and slows down execution a bit, but it is generally
498 a good idea to turn this on. If you're unsure, say Y.
501 tristate "/proc/pal support"
503 If you say Y here, you are able to get PAL (Processor Abstraction
504 Layer) information in /proc/pal. This contains useful information
505 about the processors in your systems, such as cache and TLB sizes
506 and the PAL firmware version in use.
508 To use this option, you have to ensure that the "/proc file system
509 support" (CONFIG_PROC_FS) is enabled, too.
511 config IA64_MC_ERR_INJECT
512 tristate "MC error injection support"
514 Adds support for MC error injection. If enabled, the kernel
515 will provide a sysfs interface for user applications to
516 call MC error injection PAL procedures to inject various errors.
517 This is a useful tool for MCA testing.
519 If you're unsure, do not select this option.
522 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
525 bool "ESI (Extensible SAL Interface) support"
527 If you say Y here, support is built into the kernel to
528 make ESI calls. ESI calls are used to support vendor-specific
529 firmware extensions, such as the ability to inject memory-errors
530 for test-purposes. If you're unsure, say N.
532 config IA64_HP_AML_NFW
533 bool "Support ACPI AML calls to native firmware"
535 This driver installs a global ACPI Operation Region handler for
536 region 0xA1. AML methods can use this OpRegion to call arbitrary
537 native firmware functions. The driver installs the OpRegion
538 handler if there is an HPQ5001 device or if the user supplies
539 the "force" module parameter, e.g., with the "aml_nfw.force"
540 kernel command line option.
542 source "drivers/sn/Kconfig"
545 bool "kexec system call"
546 depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
548 kexec is a system call that implements the ability to shutdown your
549 current kernel, and to start another kernel. It is like a reboot
550 but it is independent of the system firmware. And like a reboot
551 you can start any kernel with it, not just Linux.
553 The name comes from the similarity to the exec system call.
555 It is an ongoing process to be certain the hardware in a machine
556 is properly shutdown, so do not be surprised if this code does not
557 initially work for you. As of this writing the exact hardware
558 interface is strongly in flux, so no good recommendation can be
562 bool "kernel crash dumps"
563 depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
565 Generate crash dump after being started by kexec.
567 source "drivers/firmware/Kconfig"
569 source "fs/Kconfig.binfmt"
573 menu "Power management and ACPI options"
575 source "kernel/power/Kconfig"
577 source "drivers/acpi/Kconfig"
580 menu "CPU Frequency scaling"
581 source "drivers/cpufreq/Kconfig"
589 menu "Bus options (PCI, PCMCIA)"
594 Real IA-64 machines all have PCI/PCI-X/PCI Express busses. Say Y
595 here unless you are using a simulator without PCI support.
603 source "drivers/pci/pcie/Kconfig"
605 source "drivers/pci/Kconfig"
607 source "drivers/pci/hotplug/Kconfig"
609 source "drivers/pcmcia/Kconfig"
617 source "drivers/Kconfig"
619 source "arch/ia64/hp/sim/Kconfig"
622 tristate "Memory special operations driver"
624 select IA64_UNCACHED_ALLOCATOR
626 If you have an ia64 and you want to enable memory special
627 operations support (formerly known as fetchop), say Y here,
632 source "arch/ia64/Kconfig.debug"
634 source "security/Kconfig"
636 source "crypto/Kconfig"
638 source "arch/ia64/kvm/Kconfig"
643 def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)