2 int "Page Table Levels" if !IA64_PAGE_SIZE_64KB
3 range 3 4 if !IA64_PAGE_SIZE_64KB
8 source "kernel/Kconfig.freezer"
10 menu "Processor type and features"
14 select ARCH_MIGHT_HAVE_PC_PARPORT
15 select ARCH_MIGHT_HAVE_PC_SERIO
16 select PCI if (!IA64_HP_SIM)
17 select ACPI if (!IA64_HP_SIM)
18 select ARCH_MIGHT_HAVE_ACPI_PDC if ACPI
19 select HAVE_UNSTABLE_SCHED_CLOCK
23 select HAVE_KRETPROBES
24 select HAVE_FTRACE_MCOUNT_RECORD
25 select HAVE_DYNAMIC_FTRACE if (!ITANIUM)
26 select HAVE_FUNCTION_TRACER
29 select HAVE_ARCH_TRACEHOOK
30 select HAVE_DMA_API_DEBUG
32 select HAVE_MEMBLOCK_NODE_MAP
33 select HAVE_VIRT_CPU_ACCOUNTING
34 select ARCH_HAS_SG_CHAIN
36 select ARCH_DISCARD_MEMBLOCK
37 select GENERIC_IRQ_PROBE
38 select GENERIC_PENDING_IRQ if SMP
39 select GENERIC_IRQ_SHOW
40 select GENERIC_IRQ_LEGACY
41 select ARCH_WANT_OPTIONAL_GPIOLIB
42 select ARCH_HAVE_NMI_SAFE_CMPXCHG
44 select GENERIC_SMP_IDLE_THREAD
46 select ARCH_TASK_STRUCT_ALLOCATOR
47 select ARCH_THREAD_INFO_ALLOCATOR
48 select ARCH_CLOCKSOURCE_DATA
49 select GENERIC_TIME_VSYSCALL_OLD
50 select SYSCTL_ARCH_UNALIGN_NO_WARN
51 select HAVE_MOD_ARCH_SPECIFIC
52 select MODULES_USE_ELF_RELA
53 select ARCH_USE_CMPXCHG_LOCKREF
54 select HAVE_ARCH_AUDITSYSCALL
57 The Itanium Processor Family is Intel's 64-bit successor to
58 the 32-bit X86 line. The IA-64 Linux project has a home
59 page at <http://www.linuxia64.org/> and a mailing list at
60 <linux-ia64@vger.kernel.org>.
64 select ATA_NONSTANDARD if ATA
69 depends on !IA64_SGI_SN2
79 config ARCH_DMA_ADDR_T_64BIT
82 config NEED_DMA_MAP_STATE
85 config NEED_SG_DMA_LENGTH
91 config STACKTRACE_SUPPORT
94 config GENERIC_LOCKBREAK
97 config RWSEM_XCHGADD_ALGORITHM
101 config HUGETLB_PAGE_SIZE_VARIABLE
103 depends on HUGETLB_PAGE
106 config GENERIC_CALIBRATE_DELAY
110 config HAVE_SETUP_PER_CPU_AREA
116 select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
123 config SCHED_OMIT_FRAME_POINTER
127 config IA64_UNCACHED_ALLOCATOR
129 select GENERIC_ALLOCATOR
131 config ARCH_USES_PG_UNCACHED
133 depends on IA64_UNCACHED_ALLOCATOR
139 menuconfig PARAVIRT_GUEST
140 bool "Paravirtualized guest support"
143 Say Y here to get to see options related to running Linux under
144 various hypervisors. This option alone does not add any kernel code.
146 If you say N, all options in this submenu will be skipped and disabled.
151 bool "Enable paravirtualization code"
152 depends on PARAVIRT_GUEST
155 This changes the kernel so it can modify itself when it is run
156 under a hypervisor, potentially improving performance significantly
157 over full virtualization. However, when run without a hypervisor
158 the kernel is theoretically slower and slightly larger.
173 This selects the system type of your hardware. A "generic" kernel
174 will run on any supported IA-64 system. However, if you configure
175 a kernel for your specific system, it will be faster and smaller.
177 generic For any supported IA-64 system
178 DIG-compliant For DIG ("Developer's Interface Guide") compliant systems
179 DIG+Intel+IOMMU For DIG systems with Intel IOMMU
180 HP-zx1/sx1000 For HP systems
181 HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices.
182 SGI-SN2 For SGI Altix systems
183 SGI-UV For SGI UV systems
184 Ski-simulator For the HP simulator <http://www.hpl.hp.com/research/linux/ski/>
186 If you don't know what to do, choose "generic".
193 bool "DIG+Intel+IOMMU"
200 Build a kernel that runs on HP zx1 and sx1000 systems. This adds
201 support for the HP I/O MMU.
203 config IA64_HP_ZX1_SWIOTLB
204 bool "HP-zx1/sx1000 with software I/O TLB"
207 Build a kernel that runs on HP zx1 and sx1000 systems even when they
208 have broken PCI devices which cannot DMA to full 32 bits. Apart
209 from support for the HP I/O MMU, this includes support for the software
210 I/O TLB, which allows supporting the broken devices at the expense of
211 wasting some kernel memory (about 2MB by default).
218 Selecting this option will optimize the kernel for use on sn2 based
219 systems, but the resulting kernel binary will not run on other
220 types of ia64 systems. If you have an SGI Altix system, it's safe
221 to select this option. If in doubt, select ia64 generic support
230 Selecting this option will optimize the kernel for use on UV based
231 systems, but the resulting kernel binary will not run on other
232 types of ia64 systems. If you have an SGI UV system, it's safe
233 to select this option. If in doubt, select ia64 generic support
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
300 source kernel/Kconfig.hz
308 # align cache-sensitive data to 128 bytes
309 config IA64_L1_CACHE_SHIFT
311 default "7" if MCKINLEY
312 default "6" if ITANIUM
315 bool "Cyclone (EXA) Time Source support"
317 Say Y here to enable support for IBM EXA Cyclone time source.
318 If you're unsure, answer N.
322 depends on !IA64_HP_SIM
325 config FORCE_MAX_ZONEORDER
326 int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE
327 range 11 17 if !HUGETLB_PAGE
328 default "17" if HUGETLB_PAGE
332 bool "Symmetric multi-processing support"
334 This enables support for systems with more than one CPU. If you have
335 a system with only one CPU, say N. If you have a system with more
338 If you say N here, the kernel will run on single and multiprocessor
339 systems, but will use only one CPU of a multiprocessor system. If
340 you say Y here, the kernel will run on many, but not all,
341 single processor systems. On a single processor system, the kernel
342 will run faster if you say N here.
344 See also the SMP-HOWTO available at
345 <http://www.tldp.org/docs.html#howto>.
347 If you don't know what to do here, say N.
350 int "Maximum number of CPUs (2-4096)"
355 You should set this to the number of CPUs in your system, but
356 keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
357 only use 2 CPUs on a >2 CPU system. Setting this to a value larger
358 than 64 will cause the use of a CPU mask array, causing a small
362 bool "Support for hot-pluggable CPUs"
366 Say Y here to experiment with turning CPUs off and on. CPUs
367 can be controlled through /sys/devices/system/cpu/cpu#.
368 Say N if you want to disable CPU hotplug.
370 config ARCH_ENABLE_MEMORY_HOTPLUG
373 config ARCH_ENABLE_MEMORY_HOTREMOVE
377 bool "SMT scheduler support"
380 Improves the CPU scheduler's decision making when dealing with
381 Intel IA64 chips with MultiThreading at a cost of slightly increased
382 overhead in some places. If unsure say N here.
384 config PERMIT_BSP_REMOVE
385 bool "Support removal of Bootstrap Processor"
386 depends on HOTPLUG_CPU
389 Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
392 config FORCE_CPEI_RETARGET
393 bool "Force assumption that CPEI can be re-targeted"
394 depends on PERMIT_BSP_REMOVE
397 Say Y if you need to force the assumption that CPEI can be re-targeted to
398 any cpu in the system. This hint is available via ACPI 3.0 specifications.
399 Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
400 This option it useful to enable this feature on older BIOS's as well.
401 You can also enable this by using boot command line option force_cpei=1.
403 source "kernel/Kconfig.preempt"
407 config ARCH_SELECT_MEMORY_MODEL
410 config ARCH_DISCONTIGMEM_ENABLE
413 Say Y to support efficient handling of discontiguous physical memory,
414 for architectures which are either NUMA (Non-Uniform Memory Access)
415 or have huge holes in the physical address space for other reasons.
416 See <file:Documentation/vm/numa> for more.
418 config ARCH_FLATMEM_ENABLE
421 config ARCH_SPARSEMEM_ENABLE
423 depends on ARCH_DISCONTIGMEM_ENABLE
424 select SPARSEMEM_VMEMMAP_ENABLE
426 config ARCH_DISCONTIGMEM_DEFAULT
427 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
428 depends on ARCH_DISCONTIGMEM_ENABLE
432 depends on !IA64_HP_SIM && !FLATMEM
433 default y if IA64_SGI_SN2
434 select ACPI_NUMA if ACPI
436 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
437 Access). This option is for configuring high-end multiprocessor
438 server systems. If in doubt, say N.
441 int "Max num nodes shift(3-10)"
444 depends on NEED_MULTIPLE_NODES
446 This option specifies the maximum number of nodes in your SSI system.
447 MAX_NUMNODES will be 2^(This value).
448 If in doubt, use the default.
450 # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
451 # VIRTUAL_MEM_MAP has been retained for historical reasons.
452 config VIRTUAL_MEM_MAP
453 bool "Virtual mem map"
454 depends on !SPARSEMEM
455 default y if !IA64_HP_SIM
457 Say Y to compile the kernel with support for a virtual mem map.
458 This code also only takes effect if a memory hole of greater than
459 1 Gb is found during boot. You must turn this option on if you
460 require the DISCONTIGMEM option for your machine. If you are
465 default y if VIRTUAL_MEM_MAP
467 config HAVE_ARCH_EARLY_PFN_TO_NID
468 def_bool NUMA && SPARSEMEM
470 config HAVE_ARCH_NODEDATA_EXTENSION
474 config USE_PERCPU_NUMA_NODE_ID
478 config HAVE_MEMORYLESS_NODES
481 config ARCH_PROC_KCORE_TEXT
483 depends on PROC_KCORE
485 config IA64_MCA_RECOVERY
486 tristate "MCA recovery from errors other than TLB."
489 bool "Performance monitor support"
491 Selects whether support for the IA-64 performance monitor hardware
492 is included in the kernel. This makes some kernel data-structures a
493 little bigger and slows down execution a bit, but it is generally
494 a good idea to turn this on. If you're unsure, say Y.
497 tristate "/proc/pal support"
499 If you say Y here, you are able to get PAL (Processor Abstraction
500 Layer) information in /proc/pal. This contains useful information
501 about the processors in your systems, such as cache and TLB sizes
502 and the PAL firmware version in use.
504 To use this option, you have to ensure that the "/proc file system
505 support" (CONFIG_PROC_FS) is enabled, too.
507 config IA64_MC_ERR_INJECT
508 tristate "MC error injection support"
510 Adds support for MC error injection. If enabled, the kernel
511 will provide a sysfs interface for user applications to
512 call MC error injection PAL procedures to inject various errors.
513 This is a useful tool for MCA testing.
515 If you're unsure, do not select this option.
518 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
521 bool "ESI (Extensible SAL Interface) support"
523 If you say Y here, support is built into the kernel to
524 make ESI calls. ESI calls are used to support vendor-specific
525 firmware extensions, such as the ability to inject memory-errors
526 for test-purposes. If you're unsure, say N.
528 config IA64_HP_AML_NFW
529 bool "Support ACPI AML calls to native firmware"
531 This driver installs a global ACPI Operation Region handler for
532 region 0xA1. AML methods can use this OpRegion to call arbitrary
533 native firmware functions. The driver installs the OpRegion
534 handler if there is an HPQ5001 device or if the user supplies
535 the "force" module parameter, e.g., with the "aml_nfw.force"
536 kernel command line option.
538 source "drivers/sn/Kconfig"
541 bool "kexec system call"
542 depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
544 kexec is a system call that implements the ability to shutdown your
545 current kernel, and to start another kernel. It is like a reboot
546 but it is independent of the system firmware. And like a reboot
547 you can start any kernel with it, not just Linux.
549 The name comes from the similarity to the exec system call.
551 It is an ongoing process to be certain the hardware in a machine
552 is properly shutdown, so do not be surprised if this code does not
553 initially work for you. As of this writing the exact hardware
554 interface is strongly in flux, so no good recommendation can be
558 bool "kernel crash dumps"
559 depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
561 Generate crash dump after being started by kexec.
563 source "drivers/firmware/Kconfig"
565 source "fs/Kconfig.binfmt"
569 menu "Power management and ACPI options"
571 source "kernel/power/Kconfig"
573 source "drivers/acpi/Kconfig"
576 menu "CPU Frequency scaling"
577 source "drivers/cpufreq/Kconfig"
585 menu "Bus options (PCI, PCMCIA)"
590 Real IA-64 machines all have PCI/PCI-X/PCI Express busses. Say Y
591 here unless you are using a simulator without PCI support.
599 source "drivers/pci/pcie/Kconfig"
601 source "drivers/pci/Kconfig"
603 source "drivers/pci/hotplug/Kconfig"
605 source "drivers/pcmcia/Kconfig"
613 source "drivers/Kconfig"
615 source "arch/ia64/hp/sim/Kconfig"
618 tristate "Memory special operations driver"
620 select IA64_UNCACHED_ALLOCATOR
622 If you have an ia64 and you want to enable memory special
623 operations support (formerly known as fetchop), say Y here,
628 source "arch/ia64/Kconfig.debug"
630 source "security/Kconfig"
632 source "crypto/Kconfig"
637 def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)