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
25 select HAVE_ARCH_TRACEHOOK
26 select HAVE_DMA_API_DEBUG
28 select HAVE_MEMBLOCK_NODE_MAP
29 select HAVE_VIRT_CPU_ACCOUNTING
31 select ARCH_DISCARD_MEMBLOCK
32 select GENERIC_IRQ_PROBE
33 select GENERIC_PENDING_IRQ if SMP
34 select GENERIC_IRQ_SHOW
35 select ARCH_WANT_OPTIONAL_GPIOLIB
36 select ARCH_HAVE_NMI_SAFE_CMPXCHG
38 select GENERIC_SMP_IDLE_THREAD
40 select ARCH_TASK_STRUCT_ALLOCATOR
41 select ARCH_THREAD_INFO_ALLOCATOR
42 select ARCH_CLOCKSOURCE_DATA
43 select GENERIC_TIME_VSYSCALL_OLD
44 select SYSCTL_ARCH_UNALIGN_NO_WARN
45 select HAVE_MOD_ARCH_SPECIFIC
46 select MODULES_USE_ELF_RELA
47 select ARCH_USE_CMPXCHG_LOCKREF
48 select HAVE_ARCH_AUDITSYSCALL
51 The Itanium Processor Family is Intel's 64-bit successor to
52 the 32-bit X86 line. The IA-64 Linux project has a home
53 page at <http://www.linuxia64.org/> and a mailing list at
54 <linux-ia64@vger.kernel.org>.
58 select ATA_NONSTANDARD if ATA
63 depends on !IA64_SGI_SN2
73 config ARCH_DMA_ADDR_T_64BIT
76 config NEED_DMA_MAP_STATE
79 config NEED_SG_DMA_LENGTH
85 config STACKTRACE_SUPPORT
88 config GENERIC_LOCKBREAK
91 config RWSEM_XCHGADD_ALGORITHM
95 config HUGETLB_PAGE_SIZE_VARIABLE
97 depends on HUGETLB_PAGE
100 config GENERIC_CALIBRATE_DELAY
104 config HAVE_SETUP_PER_CPU_AREA
110 select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
117 config SCHED_OMIT_FRAME_POINTER
121 config IA64_UNCACHED_ALLOCATOR
123 select GENERIC_ALLOCATOR
125 config ARCH_USES_PG_UNCACHED
127 depends on IA64_UNCACHED_ALLOCATOR
133 menuconfig PARAVIRT_GUEST
134 bool "Paravirtualized guest support"
137 Say Y here to get to see options related to running Linux under
138 various hypervisors. This option alone does not add any kernel code.
140 If you say N, all options in this submenu will be skipped and disabled.
145 bool "Enable paravirtualization code"
146 depends on PARAVIRT_GUEST
149 This changes the kernel so it can modify itself when it is run
150 under a hypervisor, potentially improving performance significantly
151 over full virtualization. However, when run without a hypervisor
152 the kernel is theoretically slower and slightly larger.
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/>
180 If you don't know what to do, choose "generic".
187 bool "DIG+Intel+IOMMU"
194 Build a kernel that runs on HP zx1 and sx1000 systems. This adds
195 support for the HP I/O MMU.
197 config IA64_HP_ZX1_SWIOTLB
198 bool "HP-zx1/sx1000 with software I/O TLB"
201 Build a kernel that runs on HP zx1 and sx1000 systems even when they
202 have broken PCI devices which cannot DMA to full 32 bits. Apart
203 from support for the HP I/O MMU, this includes support for the software
204 I/O TLB, which allows supporting the broken devices at the expense of
205 wasting some kernel memory (about 2MB by default).
212 Selecting this option will optimize the kernel for use on sn2 based
213 systems, but the resulting kernel binary will not run on other
214 types of ia64 systems. If you have an SGI Altix system, it's safe
215 to select this option. If in doubt, select ia64 generic support
224 Selecting this option will optimize the kernel for use on UV based
225 systems, but the resulting kernel binary will not run on other
226 types of ia64 systems. If you have an SGI UV system, it's safe
227 to select this option. If in doubt, select ia64 generic support
237 prompt "Processor type"
243 Select your IA-64 processor type. The default is Itanium.
244 This choice is safe for all IA-64 systems, but may not perform
245 optimally on systems with, say, Itanium 2 or newer processors.
250 Select this to configure for an Itanium 2 (McKinley) processor.
255 prompt "Kernel page size"
256 default IA64_PAGE_SIZE_16KB
258 config IA64_PAGE_SIZE_4KB
261 This lets you select the page size of the kernel. For best IA-64
262 performance, a page size of 8KB or 16KB is recommended. For best
263 IA-32 compatibility, a page size of 4KB should be selected (the vast
264 majority of IA-32 binaries work perfectly fine with a larger page
265 size). For Itanium 2 or newer systems, a page size of 64KB can also
268 4KB For best IA-32 compatibility
269 8KB For best IA-64 performance
270 16KB For best IA-64 performance
271 64KB Requires Itanium 2 or newer processor.
273 If you don't know what to do, choose 16KB.
275 config IA64_PAGE_SIZE_8KB
278 config IA64_PAGE_SIZE_16KB
281 config IA64_PAGE_SIZE_64KB
288 prompt "Page Table Levels"
295 depends on !IA64_PAGE_SIZE_64KB
306 source kernel/Kconfig.hz
314 # align cache-sensitive data to 128 bytes
315 config IA64_L1_CACHE_SHIFT
317 default "7" if MCKINLEY
318 default "6" if ITANIUM
321 bool "Cyclone (EXA) Time Source support"
323 Say Y here to enable support for IBM EXA Cyclone time source.
324 If you're unsure, answer N.
328 depends on !IA64_HP_SIM
331 config FORCE_MAX_ZONEORDER
332 int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE
333 range 11 17 if !HUGETLB_PAGE
334 default "17" if HUGETLB_PAGE
338 bool "Symmetric multi-processing support"
340 This enables support for systems with more than one CPU. If you have
341 a system with only one CPU, say N. If you have a system with more
344 If you say N here, the kernel will run on single and multiprocessor
345 systems, but will use only one CPU of a multiprocessor system. If
346 you say Y here, the kernel will run on many, but not all,
347 single processor systems. On a single processor system, the kernel
348 will run faster if you say N here.
350 See also the SMP-HOWTO available at
351 <http://www.tldp.org/docs.html#howto>.
353 If you don't know what to do here, say N.
356 int "Maximum number of CPUs (2-4096)"
361 You should set this to the number of CPUs in your system, but
362 keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
363 only use 2 CPUs on a >2 CPU system. Setting this to a value larger
364 than 64 will cause the use of a CPU mask array, causing a small
368 bool "Support for hot-pluggable CPUs"
372 Say Y here to experiment with turning CPUs off and on. CPUs
373 can be controlled through /sys/devices/system/cpu/cpu#.
374 Say N if you want to disable CPU hotplug.
376 config ARCH_ENABLE_MEMORY_HOTPLUG
379 config ARCH_ENABLE_MEMORY_HOTREMOVE
383 bool "SMT scheduler support"
386 Improves the CPU scheduler's decision making when dealing with
387 Intel IA64 chips with MultiThreading at a cost of slightly increased
388 overhead in some places. If unsure say N here.
390 config PERMIT_BSP_REMOVE
391 bool "Support removal of Bootstrap Processor"
392 depends on HOTPLUG_CPU
395 Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
398 config FORCE_CPEI_RETARGET
399 bool "Force assumption that CPEI can be re-targeted"
400 depends on PERMIT_BSP_REMOVE
403 Say Y if you need to force the assumption that CPEI can be re-targeted to
404 any cpu in the system. This hint is available via ACPI 3.0 specifications.
405 Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
406 This option it useful to enable this feature on older BIOS's as well.
407 You can also enable this by using boot command line option force_cpei=1.
409 source "kernel/Kconfig.preempt"
413 config ARCH_SELECT_MEMORY_MODEL
416 config ARCH_DISCONTIGMEM_ENABLE
419 Say Y to support efficient handling of discontiguous physical memory,
420 for architectures which are either NUMA (Non-Uniform Memory Access)
421 or have huge holes in the physical address space for other reasons.
422 See <file:Documentation/vm/numa> for more.
424 config ARCH_FLATMEM_ENABLE
427 config ARCH_SPARSEMEM_ENABLE
429 depends on ARCH_DISCONTIGMEM_ENABLE
430 select SPARSEMEM_VMEMMAP_ENABLE
432 config ARCH_DISCONTIGMEM_DEFAULT
433 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
434 depends on ARCH_DISCONTIGMEM_ENABLE
438 depends on !IA64_HP_SIM && !FLATMEM
439 default y if IA64_SGI_SN2
440 select ACPI_NUMA if ACPI
442 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
443 Access). This option is for configuring high-end multiprocessor
444 server systems. If in doubt, say N.
447 int "Max num nodes shift(3-10)"
450 depends on NEED_MULTIPLE_NODES
452 This option specifies the maximum number of nodes in your SSI system.
453 MAX_NUMNODES will be 2^(This value).
454 If in doubt, use the default.
456 # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
457 # VIRTUAL_MEM_MAP has been retained for historical reasons.
458 config VIRTUAL_MEM_MAP
459 bool "Virtual mem map"
460 depends on !SPARSEMEM
461 default y if !IA64_HP_SIM
463 Say Y to compile the kernel with support for a virtual mem map.
464 This code also only takes effect if a memory hole of greater than
465 1 Gb is found during boot. You must turn this option on if you
466 require the DISCONTIGMEM option for your machine. If you are
471 default y if VIRTUAL_MEM_MAP
473 config HAVE_ARCH_EARLY_PFN_TO_NID
474 def_bool NUMA && SPARSEMEM
476 config HAVE_ARCH_NODEDATA_EXTENSION
480 config USE_PERCPU_NUMA_NODE_ID
484 config HAVE_MEMORYLESS_NODES
487 config ARCH_PROC_KCORE_TEXT
489 depends on PROC_KCORE
491 config IA64_MCA_RECOVERY
492 tristate "MCA recovery from errors other than TLB."
495 bool "Performance monitor support"
497 Selects whether support for the IA-64 performance monitor hardware
498 is included in the kernel. This makes some kernel data-structures a
499 little bigger and slows down execution a bit, but it is generally
500 a good idea to turn this on. If you're unsure, say Y.
503 tristate "/proc/pal support"
505 If you say Y here, you are able to get PAL (Processor Abstraction
506 Layer) information in /proc/pal. This contains useful information
507 about the processors in your systems, such as cache and TLB sizes
508 and the PAL firmware version in use.
510 To use this option, you have to ensure that the "/proc file system
511 support" (CONFIG_PROC_FS) is enabled, too.
513 config IA64_MC_ERR_INJECT
514 tristate "MC error injection support"
516 Adds support for MC error injection. If enabled, the kernel
517 will provide a sysfs interface for user applications to
518 call MC error injection PAL procedures to inject various errors.
519 This is a useful tool for MCA testing.
521 If you're unsure, do not select this option.
524 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
527 bool "ESI (Extensible SAL Interface) support"
529 If you say Y here, support is built into the kernel to
530 make ESI calls. ESI calls are used to support vendor-specific
531 firmware extensions, such as the ability to inject memory-errors
532 for test-purposes. If you're unsure, say N.
534 config IA64_HP_AML_NFW
535 bool "Support ACPI AML calls to native firmware"
537 This driver installs a global ACPI Operation Region handler for
538 region 0xA1. AML methods can use this OpRegion to call arbitrary
539 native firmware functions. The driver installs the OpRegion
540 handler if there is an HPQ5001 device or if the user supplies
541 the "force" module parameter, e.g., with the "aml_nfw.force"
542 kernel command line option.
544 source "drivers/sn/Kconfig"
547 bool "kexec system call"
548 depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
550 kexec is a system call that implements the ability to shutdown your
551 current kernel, and to start another kernel. It is like a reboot
552 but it is independent of the system firmware. And like a reboot
553 you can start any kernel with it, not just Linux.
555 The name comes from the similarity to the exec system call.
557 It is an ongoing process to be certain the hardware in a machine
558 is properly shutdown, so do not be surprised if this code does not
559 initially work for you. As of this writing the exact hardware
560 interface is strongly in flux, so no good recommendation can be
564 bool "kernel crash dumps"
565 depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
567 Generate crash dump after being started by kexec.
569 source "drivers/firmware/Kconfig"
571 source "fs/Kconfig.binfmt"
575 menu "Power management and ACPI options"
577 source "kernel/power/Kconfig"
579 source "drivers/acpi/Kconfig"
582 menu "CPU Frequency scaling"
583 source "drivers/cpufreq/Kconfig"
591 menu "Bus options (PCI, PCMCIA)"
596 Real IA-64 machines all have PCI/PCI-X/PCI Express busses. Say Y
597 here unless you are using a simulator without PCI support.
605 source "drivers/pci/pcie/Kconfig"
607 source "drivers/pci/Kconfig"
609 source "drivers/pci/hotplug/Kconfig"
611 source "drivers/pcmcia/Kconfig"
619 source "drivers/Kconfig"
621 source "arch/ia64/hp/sim/Kconfig"
624 tristate "Memory special operations driver"
626 select IA64_UNCACHED_ALLOCATOR
628 If you have an ia64 and you want to enable memory special
629 operations support (formerly known as fetchop), say Y here,
634 source "arch/ia64/Kconfig.debug"
636 source "security/Kconfig"
638 source "crypto/Kconfig"
640 source "arch/ia64/kvm/Kconfig"
645 def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)