3 source "kernel/Kconfig.freezer"
5 menu "Processor type and features"
9 select ARCH_MIGHT_HAVE_PC_PARPORT
10 select PCI if (!IA64_HP_SIM)
11 select ACPI if (!IA64_HP_SIM)
12 select PM if (!IA64_HP_SIM)
13 select HAVE_UNSTABLE_SCHED_CLOCK
17 select HAVE_KRETPROBES
18 select HAVE_FTRACE_MCOUNT_RECORD
19 select HAVE_DYNAMIC_FTRACE if (!ITANIUM)
20 select HAVE_FUNCTION_TRACER
23 select HAVE_ARCH_TRACEHOOK
24 select HAVE_DMA_API_DEBUG
26 select HAVE_MEMBLOCK_NODE_MAP
27 select HAVE_VIRT_CPU_ACCOUNTING
29 select ARCH_DISCARD_MEMBLOCK
30 select GENERIC_IRQ_PROBE
31 select GENERIC_PENDING_IRQ if SMP
32 select GENERIC_IRQ_SHOW
33 select ARCH_WANT_OPTIONAL_GPIOLIB
34 select ARCH_HAVE_NMI_SAFE_CMPXCHG
36 select GENERIC_SMP_IDLE_THREAD
38 select ARCH_TASK_STRUCT_ALLOCATOR
39 select ARCH_THREAD_INFO_ALLOCATOR
40 select ARCH_CLOCKSOURCE_DATA
41 select GENERIC_TIME_VSYSCALL_OLD
42 select SYSCTL_ARCH_UNALIGN_NO_WARN
43 select HAVE_MOD_ARCH_SPECIFIC
44 select MODULES_USE_ELF_RELA
45 select ARCH_USE_CMPXCHG_LOCKREF
48 The Itanium Processor Family is Intel's 64-bit successor to
49 the 32-bit X86 line. The IA-64 Linux project has a home
50 page at <http://www.linuxia64.org/> and a mailing list at
51 <linux-ia64@vger.kernel.org>.
55 select ATA_NONSTANDARD if ATA
60 depends on !IA64_SGI_SN2
70 config ARCH_DMA_ADDR_T_64BIT
73 config NEED_DMA_MAP_STATE
76 config NEED_SG_DMA_LENGTH
82 config STACKTRACE_SUPPORT
85 config GENERIC_LOCKBREAK
88 config RWSEM_XCHGADD_ALGORITHM
92 config HUGETLB_PAGE_SIZE_VARIABLE
94 depends on HUGETLB_PAGE
97 config GENERIC_CALIBRATE_DELAY
101 config HAVE_SETUP_PER_CPU_AREA
113 config SCHED_OMIT_FRAME_POINTER
117 config IA64_UNCACHED_ALLOCATOR
119 select GENERIC_ALLOCATOR
121 config ARCH_USES_PG_UNCACHED
123 depends on IA64_UNCACHED_ALLOCATOR
129 menuconfig PARAVIRT_GUEST
130 bool "Paravirtualized guest support"
133 Say Y here to get to see options related to running Linux under
134 various hypervisors. This option alone does not add any kernel code.
136 If you say N, all options in this submenu will be skipped and disabled.
141 bool "Enable paravirtualization code"
142 depends on PARAVIRT_GUEST
145 This changes the kernel so it can modify itself when it is run
146 under a hypervisor, potentially improving performance significantly
147 over full virtualization. However, when run without a hypervisor
148 the kernel is theoretically slower and slightly larger.
163 This selects the system type of your hardware. A "generic" kernel
164 will run on any supported IA-64 system. However, if you configure
165 a kernel for your specific system, it will be faster and smaller.
167 generic For any supported IA-64 system
168 DIG-compliant For DIG ("Developer's Interface Guide") compliant systems
169 DIG+Intel+IOMMU For DIG systems with Intel IOMMU
170 HP-zx1/sx1000 For HP systems
171 HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices.
172 SGI-SN2 For SGI Altix systems
173 SGI-UV For SGI UV systems
174 Ski-simulator For the HP simulator <http://www.hpl.hp.com/research/linux/ski/>
176 If you don't know what to do, choose "generic".
183 bool "DIG+Intel+IOMMU"
190 Build a kernel that runs on HP zx1 and sx1000 systems. This adds
191 support for the HP I/O MMU.
193 config IA64_HP_ZX1_SWIOTLB
194 bool "HP-zx1/sx1000 with software I/O TLB"
197 Build a kernel that runs on HP zx1 and sx1000 systems even when they
198 have broken PCI devices which cannot DMA to full 32 bits. Apart
199 from support for the HP I/O MMU, this includes support for the software
200 I/O TLB, which allows supporting the broken devices at the expense of
201 wasting some kernel memory (about 2MB by default).
208 Selecting this option will optimize the kernel for use on sn2 based
209 systems, but the resulting kernel binary will not run on other
210 types of ia64 systems. If you have an SGI Altix system, it's safe
211 to select this option. If in doubt, select ia64 generic support
220 Selecting this option will optimize the kernel for use on UV based
221 systems, but the resulting kernel binary will not run on other
222 types of ia64 systems. If you have an SGI UV system, it's safe
223 to select this option. If in doubt, select ia64 generic support
233 prompt "Processor type"
239 Select your IA-64 processor type. The default is Itanium.
240 This choice is safe for all IA-64 systems, but may not perform
241 optimally on systems with, say, Itanium 2 or newer processors.
246 Select this to configure for an Itanium 2 (McKinley) processor.
251 prompt "Kernel page size"
252 default IA64_PAGE_SIZE_16KB
254 config IA64_PAGE_SIZE_4KB
257 This lets you select the page size of the kernel. For best IA-64
258 performance, a page size of 8KB or 16KB is recommended. For best
259 IA-32 compatibility, a page size of 4KB should be selected (the vast
260 majority of IA-32 binaries work perfectly fine with a larger page
261 size). For Itanium 2 or newer systems, a page size of 64KB can also
264 4KB For best IA-32 compatibility
265 8KB For best IA-64 performance
266 16KB For best IA-64 performance
267 64KB Requires Itanium 2 or newer processor.
269 If you don't know what to do, choose 16KB.
271 config IA64_PAGE_SIZE_8KB
274 config IA64_PAGE_SIZE_16KB
277 config IA64_PAGE_SIZE_64KB
284 prompt "Page Table Levels"
291 depends on !IA64_PAGE_SIZE_64KB
302 source kernel/Kconfig.hz
310 # align cache-sensitive data to 128 bytes
311 config IA64_L1_CACHE_SHIFT
313 default "7" if MCKINLEY
314 default "6" if ITANIUM
317 bool "Cyclone (EXA) Time Source support"
319 Say Y here to enable support for IBM EXA Cyclone time source.
320 If you're unsure, answer N.
324 depends on !IA64_HP_SIM
327 config FORCE_MAX_ZONEORDER
328 int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE
329 range 11 17 if !HUGETLB_PAGE
330 default "17" if HUGETLB_PAGE
334 bool "Symmetric multi-processing support"
336 This enables support for systems with more than one CPU. If you have
337 a system with only one CPU, say N. If you have a system with more
340 If you say N here, the kernel will run on single and multiprocessor
341 systems, but will use only one CPU of a multiprocessor system. If
342 you say Y here, the kernel will run on many, but not all,
343 single processor systems. On a single processor system, the kernel
344 will run faster if you say N here.
346 See also the SMP-HOWTO available at
347 <http://www.tldp.org/docs.html#howto>.
349 If you don't know what to do here, say N.
352 int "Maximum number of CPUs (2-4096)"
357 You should set this to the number of CPUs in your system, but
358 keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
359 only use 2 CPUs on a >2 CPU system. Setting this to a value larger
360 than 64 will cause the use of a CPU mask array, causing a small
364 bool "Support for hot-pluggable CPUs"
368 Say Y here to experiment with turning CPUs off and on. CPUs
369 can be controlled through /sys/devices/system/cpu/cpu#.
370 Say N if you want to disable CPU hotplug.
372 config ARCH_ENABLE_MEMORY_HOTPLUG
375 config ARCH_ENABLE_MEMORY_HOTREMOVE
379 bool "SMT scheduler support"
382 Improves the CPU scheduler's decision making when dealing with
383 Intel IA64 chips with MultiThreading at a cost of slightly increased
384 overhead in some places. If unsure say N here.
386 config PERMIT_BSP_REMOVE
387 bool "Support removal of Bootstrap Processor"
388 depends on HOTPLUG_CPU
391 Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
394 config FORCE_CPEI_RETARGET
395 bool "Force assumption that CPEI can be re-targeted"
396 depends on PERMIT_BSP_REMOVE
399 Say Y if you need to force the assumption that CPEI can be re-targeted to
400 any cpu in the system. This hint is available via ACPI 3.0 specifications.
401 Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
402 This option it useful to enable this feature on older BIOS's as well.
403 You can also enable this by using boot command line option force_cpei=1.
405 source "kernel/Kconfig.preempt"
409 config ARCH_SELECT_MEMORY_MODEL
412 config ARCH_DISCONTIGMEM_ENABLE
415 Say Y to support efficient handling of discontiguous physical memory,
416 for architectures which are either NUMA (Non-Uniform Memory Access)
417 or have huge holes in the physical address space for other reasons.
418 See <file:Documentation/vm/numa> for more.
420 config ARCH_FLATMEM_ENABLE
423 config ARCH_SPARSEMEM_ENABLE
425 depends on ARCH_DISCONTIGMEM_ENABLE
426 select SPARSEMEM_VMEMMAP_ENABLE
428 config ARCH_DISCONTIGMEM_DEFAULT
429 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
430 depends on ARCH_DISCONTIGMEM_ENABLE
434 depends on !IA64_HP_SIM && !FLATMEM
435 default y if IA64_SGI_SN2
436 select ACPI_NUMA if ACPI
438 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
439 Access). This option is for configuring high-end multiprocessor
440 server systems. If in doubt, say N.
443 int "Max num nodes shift(3-10)"
446 depends on NEED_MULTIPLE_NODES
448 This option specifies the maximum number of nodes in your SSI system.
449 MAX_NUMNODES will be 2^(This value).
450 If in doubt, use the default.
452 # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
453 # VIRTUAL_MEM_MAP has been retained for historical reasons.
454 config VIRTUAL_MEM_MAP
455 bool "Virtual mem map"
456 depends on !SPARSEMEM
457 default y if !IA64_HP_SIM
459 Say Y to compile the kernel with support for a virtual mem map.
460 This code also only takes effect if a memory hole of greater than
461 1 Gb is found during boot. You must turn this option on if you
462 require the DISCONTIGMEM option for your machine. If you are
467 default y if VIRTUAL_MEM_MAP
469 config HAVE_ARCH_EARLY_PFN_TO_NID
470 def_bool NUMA && SPARSEMEM
472 config HAVE_ARCH_NODEDATA_EXTENSION
476 config USE_PERCPU_NUMA_NODE_ID
480 config HAVE_MEMORYLESS_NODES
483 config ARCH_PROC_KCORE_TEXT
485 depends on PROC_KCORE
487 config IA64_MCA_RECOVERY
488 tristate "MCA recovery from errors other than TLB."
491 bool "Performance monitor support"
493 Selects whether support for the IA-64 performance monitor hardware
494 is included in the kernel. This makes some kernel data-structures a
495 little bigger and slows down execution a bit, but it is generally
496 a good idea to turn this on. If you're unsure, say Y.
499 tristate "/proc/pal support"
501 If you say Y here, you are able to get PAL (Processor Abstraction
502 Layer) information in /proc/pal. This contains useful information
503 about the processors in your systems, such as cache and TLB sizes
504 and the PAL firmware version in use.
506 To use this option, you have to ensure that the "/proc file system
507 support" (CONFIG_PROC_FS) is enabled, too.
509 config IA64_MC_ERR_INJECT
510 tristate "MC error injection support"
512 Adds support for MC error injection. If enabled, the kernel
513 will provide a sysfs interface for user applications to
514 call MC error injection PAL procedures to inject various errors.
515 This is a useful tool for MCA testing.
517 If you're unsure, do not select this option.
520 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
523 bool "ESI (Extensible SAL Interface) support"
525 If you say Y here, support is built into the kernel to
526 make ESI calls. ESI calls are used to support vendor-specific
527 firmware extensions, such as the ability to inject memory-errors
528 for test-purposes. If you're unsure, say N.
530 config IA64_HP_AML_NFW
531 bool "Support ACPI AML calls to native firmware"
533 This driver installs a global ACPI Operation Region handler for
534 region 0xA1. AML methods can use this OpRegion to call arbitrary
535 native firmware functions. The driver installs the OpRegion
536 handler if there is an HPQ5001 device or if the user supplies
537 the "force" module parameter, e.g., with the "aml_nfw.force"
538 kernel command line option.
540 source "drivers/sn/Kconfig"
543 bool "kexec system call"
544 depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
546 kexec is a system call that implements the ability to shutdown your
547 current kernel, and to start another kernel. It is like a reboot
548 but it is independent of the system firmware. And like a reboot
549 you can start any kernel with it, not just Linux.
551 The name comes from the similarity to the exec system call.
553 It is an ongoing process to be certain the hardware in a machine
554 is properly shutdown, so do not be surprised if this code does not
555 initially work for you. As of this writing the exact hardware
556 interface is strongly in flux, so no good recommendation can be
560 bool "kernel crash dumps"
561 depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
563 Generate crash dump after being started by kexec.
565 source "drivers/firmware/Kconfig"
567 source "fs/Kconfig.binfmt"
571 menu "Power management and ACPI options"
573 source "kernel/power/Kconfig"
575 source "drivers/acpi/Kconfig"
578 menu "CPU Frequency scaling"
579 source "drivers/cpufreq/Kconfig"
587 menu "Bus options (PCI, PCMCIA)"
592 Real IA-64 machines all have PCI/PCI-X/PCI Express busses. Say Y
593 here unless you are using a simulator without PCI support.
601 source "drivers/pci/pcie/Kconfig"
603 source "drivers/pci/Kconfig"
605 source "drivers/pci/hotplug/Kconfig"
607 source "drivers/pcmcia/Kconfig"
615 source "drivers/Kconfig"
617 source "arch/ia64/hp/sim/Kconfig"
620 tristate "Memory special operations driver"
622 select IA64_UNCACHED_ALLOCATOR
624 If you have an ia64 and you want to enable memory special
625 operations support (formerly known as fetchop), say Y here,
630 source "arch/ia64/Kconfig.debug"
632 source "security/Kconfig"
634 source "crypto/Kconfig"
636 source "arch/ia64/kvm/Kconfig"
641 def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)