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 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
238 prompt "Processor type"
244 Select your IA-64 processor type. The default is Itanium.
245 This choice is safe for all IA-64 systems, but may not perform
246 optimally on systems with, say, Itanium 2 or newer processors.
251 Select this to configure for an Itanium 2 (McKinley) processor.
256 prompt "Kernel page size"
257 default IA64_PAGE_SIZE_16KB
259 config IA64_PAGE_SIZE_4KB
262 This lets you select the page size of the kernel. For best IA-64
263 performance, a page size of 8KB or 16KB is recommended. For best
264 IA-32 compatibility, a page size of 4KB should be selected (the vast
265 majority of IA-32 binaries work perfectly fine with a larger page
266 size). For Itanium 2 or newer systems, a page size of 64KB can also
269 4KB For best IA-32 compatibility
270 8KB For best IA-64 performance
271 16KB For best IA-64 performance
272 64KB Requires Itanium 2 or newer processor.
274 If you don't know what to do, choose 16KB.
276 config IA64_PAGE_SIZE_8KB
279 config IA64_PAGE_SIZE_16KB
282 config IA64_PAGE_SIZE_64KB
289 prompt "Page Table Levels"
296 depends on !IA64_PAGE_SIZE_64KB
307 source kernel/Kconfig.hz
315 # align cache-sensitive data to 128 bytes
316 config IA64_L1_CACHE_SHIFT
318 default "7" if MCKINLEY
319 default "6" if ITANIUM
322 bool "Cyclone (EXA) Time Source support"
324 Say Y here to enable support for IBM EXA Cyclone time source.
325 If you're unsure, answer N.
329 depends on !IA64_HP_SIM
332 config FORCE_MAX_ZONEORDER
333 int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE
334 range 11 17 if !HUGETLB_PAGE
335 default "17" if HUGETLB_PAGE
339 bool "Symmetric multi-processing support"
341 This enables support for systems with more than one CPU. If you have
342 a system with only one CPU, say N. If you have a system with more
345 If you say N here, the kernel will run on single and multiprocessor
346 systems, but will use only one CPU of a multiprocessor system. If
347 you say Y here, the kernel will run on many, but not all,
348 single processor systems. On a single processor system, the kernel
349 will run faster if you say N here.
351 See also the SMP-HOWTO available at
352 <http://www.tldp.org/docs.html#howto>.
354 If you don't know what to do here, say N.
357 int "Maximum number of CPUs (2-4096)"
362 You should set this to the number of CPUs in your system, but
363 keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
364 only use 2 CPUs on a >2 CPU system. Setting this to a value larger
365 than 64 will cause the use of a CPU mask array, causing a small
369 bool "Support for hot-pluggable CPUs"
373 Say Y here to experiment with turning CPUs off and on. CPUs
374 can be controlled through /sys/devices/system/cpu/cpu#.
375 Say N if you want to disable CPU hotplug.
377 config ARCH_ENABLE_MEMORY_HOTPLUG
380 config ARCH_ENABLE_MEMORY_HOTREMOVE
384 bool "SMT scheduler support"
387 Improves the CPU scheduler's decision making when dealing with
388 Intel IA64 chips with MultiThreading at a cost of slightly increased
389 overhead in some places. If unsure say N here.
391 config PERMIT_BSP_REMOVE
392 bool "Support removal of Bootstrap Processor"
393 depends on HOTPLUG_CPU
396 Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
399 config FORCE_CPEI_RETARGET
400 bool "Force assumption that CPEI can be re-targeted"
401 depends on PERMIT_BSP_REMOVE
404 Say Y if you need to force the assumption that CPEI can be re-targeted to
405 any cpu in the system. This hint is available via ACPI 3.0 specifications.
406 Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
407 This option it useful to enable this feature on older BIOS's as well.
408 You can also enable this by using boot command line option force_cpei=1.
410 source "kernel/Kconfig.preempt"
414 config ARCH_SELECT_MEMORY_MODEL
417 config ARCH_DISCONTIGMEM_ENABLE
420 Say Y to support efficient handling of discontiguous physical memory,
421 for architectures which are either NUMA (Non-Uniform Memory Access)
422 or have huge holes in the physical address space for other reasons.
423 See <file:Documentation/vm/numa> for more.
425 config ARCH_FLATMEM_ENABLE
428 config ARCH_SPARSEMEM_ENABLE
430 depends on ARCH_DISCONTIGMEM_ENABLE
431 select SPARSEMEM_VMEMMAP_ENABLE
433 config ARCH_DISCONTIGMEM_DEFAULT
434 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
435 depends on ARCH_DISCONTIGMEM_ENABLE
439 depends on !IA64_HP_SIM && !FLATMEM
440 default y if IA64_SGI_SN2
441 select ACPI_NUMA if ACPI
443 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
444 Access). This option is for configuring high-end multiprocessor
445 server systems. If in doubt, say N.
448 int "Max num nodes shift(3-10)"
451 depends on NEED_MULTIPLE_NODES
453 This option specifies the maximum number of nodes in your SSI system.
454 MAX_NUMNODES will be 2^(This value).
455 If in doubt, use the default.
457 # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
458 # VIRTUAL_MEM_MAP has been retained for historical reasons.
459 config VIRTUAL_MEM_MAP
460 bool "Virtual mem map"
461 depends on !SPARSEMEM
462 default y if !IA64_HP_SIM
464 Say Y to compile the kernel with support for a virtual mem map.
465 This code also only takes effect if a memory hole of greater than
466 1 Gb is found during boot. You must turn this option on if you
467 require the DISCONTIGMEM option for your machine. If you are
472 default y if VIRTUAL_MEM_MAP
474 config HAVE_ARCH_EARLY_PFN_TO_NID
475 def_bool NUMA && SPARSEMEM
477 config HAVE_ARCH_NODEDATA_EXTENSION
481 config USE_PERCPU_NUMA_NODE_ID
485 config HAVE_MEMORYLESS_NODES
488 config ARCH_PROC_KCORE_TEXT
490 depends on PROC_KCORE
492 config IA64_MCA_RECOVERY
493 tristate "MCA recovery from errors other than TLB."
496 bool "Performance monitor support"
498 Selects whether support for the IA-64 performance monitor hardware
499 is included in the kernel. This makes some kernel data-structures a
500 little bigger and slows down execution a bit, but it is generally
501 a good idea to turn this on. If you're unsure, say Y.
504 tristate "/proc/pal support"
506 If you say Y here, you are able to get PAL (Processor Abstraction
507 Layer) information in /proc/pal. This contains useful information
508 about the processors in your systems, such as cache and TLB sizes
509 and the PAL firmware version in use.
511 To use this option, you have to ensure that the "/proc file system
512 support" (CONFIG_PROC_FS) is enabled, too.
514 config IA64_MC_ERR_INJECT
515 tristate "MC error injection support"
517 Adds support for MC error injection. If enabled, the kernel
518 will provide a sysfs interface for user applications to
519 call MC error injection PAL procedures to inject various errors.
520 This is a useful tool for MCA testing.
522 If you're unsure, do not select this option.
525 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
528 bool "ESI (Extensible SAL Interface) support"
530 If you say Y here, support is built into the kernel to
531 make ESI calls. ESI calls are used to support vendor-specific
532 firmware extensions, such as the ability to inject memory-errors
533 for test-purposes. If you're unsure, say N.
535 config IA64_HP_AML_NFW
536 bool "Support ACPI AML calls to native firmware"
538 This driver installs a global ACPI Operation Region handler for
539 region 0xA1. AML methods can use this OpRegion to call arbitrary
540 native firmware functions. The driver installs the OpRegion
541 handler if there is an HPQ5001 device or if the user supplies
542 the "force" module parameter, e.g., with the "aml_nfw.force"
543 kernel command line option.
545 source "drivers/sn/Kconfig"
548 bool "kexec system call"
549 depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
551 kexec is a system call that implements the ability to shutdown your
552 current kernel, and to start another kernel. It is like a reboot
553 but it is independent of the system firmware. And like a reboot
554 you can start any kernel with it, not just Linux.
556 The name comes from the similarity to the exec system call.
558 It is an ongoing process to be certain the hardware in a machine
559 is properly shutdown, so do not be surprised if this code does not
560 initially work for you. As of this writing the exact hardware
561 interface is strongly in flux, so no good recommendation can be
565 bool "kernel crash dumps"
566 depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
568 Generate crash dump after being started by kexec.
570 source "drivers/firmware/Kconfig"
572 source "fs/Kconfig.binfmt"
576 menu "Power management and ACPI options"
578 source "kernel/power/Kconfig"
580 source "drivers/acpi/Kconfig"
583 menu "CPU Frequency scaling"
584 source "drivers/cpufreq/Kconfig"
592 menu "Bus options (PCI, PCMCIA)"
597 Real IA-64 machines all have PCI/PCI-X/PCI Express busses. Say Y
598 here unless you are using a simulator without PCI support.
606 source "drivers/pci/pcie/Kconfig"
608 source "drivers/pci/Kconfig"
610 source "drivers/pci/hotplug/Kconfig"
612 source "drivers/pcmcia/Kconfig"
620 source "drivers/Kconfig"
622 source "arch/ia64/hp/sim/Kconfig"
625 tristate "Memory special operations driver"
627 select IA64_UNCACHED_ALLOCATOR
629 If you have an ia64 and you want to enable memory special
630 operations support (formerly known as fetchop), say Y here,
635 source "arch/ia64/Kconfig.debug"
637 source "security/Kconfig"
639 source "crypto/Kconfig"
641 source "arch/ia64/kvm/Kconfig"
646 def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)