3 source "kernel/Kconfig.freezer"
5 menu "Processor type and features"
9 select PCI if (!IA64_HP_SIM)
10 select ACPI if (!IA64_HP_SIM)
11 select PM if (!IA64_HP_SIM)
12 select ARCH_SUPPORTS_MSI
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
25 select HAVE_GENERIC_HARDIRQS
27 select HAVE_MEMBLOCK_NODE_MAP
28 select HAVE_VIRT_CPU_ACCOUNTING
29 select ARCH_DISCARD_MEMBLOCK
30 select GENERIC_IRQ_PROBE
31 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 HAVE_MOD_ARCH_SPECIFIC
44 select MODULES_USE_ELF_RELA
47 The Itanium Processor Family is Intel's 64-bit successor to
48 the 32-bit X86 line. The IA-64 Linux project has a home
49 page at <http://www.linuxia64.org/> and a mailing list at
50 <linux-ia64@vger.kernel.org>.
54 select ATA_NONSTANDARD if ATA
59 depends on !IA64_SGI_SN2
69 config ARCH_DMA_ADDR_T_64BIT
72 config NEED_DMA_MAP_STATE
75 config NEED_SG_DMA_LENGTH
81 config STACKTRACE_SUPPORT
84 config GENERIC_LOCKBREAK
87 config RWSEM_XCHGADD_ALGORITHM
91 config HUGETLB_PAGE_SIZE_VARIABLE
93 depends on HUGETLB_PAGE
96 config GENERIC_CALIBRATE_DELAY
100 config HAVE_SETUP_PER_CPU_AREA
114 config SCHED_OMIT_FRAME_POINTER
118 config IA64_UNCACHED_ALLOCATOR
120 select GENERIC_ALLOCATOR
122 config ARCH_USES_PG_UNCACHED
124 depends on IA64_UNCACHED_ALLOCATOR
130 menuconfig PARAVIRT_GUEST
131 bool "Paravirtualized guest support"
134 Say Y here to get to see options related to running Linux under
135 various hypervisors. This option alone does not add any kernel code.
137 If you say N, all options in this submenu will be skipped and disabled.
142 bool "Enable paravirtualization code"
143 depends on PARAVIRT_GUEST
146 This changes the kernel so it can modify itself when it is run
147 under a hypervisor, potentially improving performance significantly
148 over full virtualization. However, when run without a hypervisor
149 the kernel is theoretically slower and slightly larger.
152 source "arch/ia64/xen/Kconfig"
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/>
179 Xen-domU For xen domU system
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
235 config IA64_XEN_GUEST
240 Build a kernel that runs on Xen guest domain. At this moment only
241 16KB page size in supported.
246 prompt "Processor type"
252 Select your IA-64 processor type. The default is Itanium.
253 This choice is safe for all IA-64 systems, but may not perform
254 optimally on systems with, say, Itanium 2 or newer processors.
259 Select this to configure for an Itanium 2 (McKinley) processor.
264 prompt "Kernel page size"
265 default IA64_PAGE_SIZE_16KB
267 config IA64_PAGE_SIZE_4KB
270 This lets you select the page size of the kernel. For best IA-64
271 performance, a page size of 8KB or 16KB is recommended. For best
272 IA-32 compatibility, a page size of 4KB should be selected (the vast
273 majority of IA-32 binaries work perfectly fine with a larger page
274 size). For Itanium 2 or newer systems, a page size of 64KB can also
277 4KB For best IA-32 compatibility
278 8KB For best IA-64 performance
279 16KB For best IA-64 performance
280 64KB Requires Itanium 2 or newer processor.
282 If you don't know what to do, choose 16KB.
284 config IA64_PAGE_SIZE_8KB
287 config IA64_PAGE_SIZE_16KB
290 config IA64_PAGE_SIZE_64KB
297 prompt "Page Table Levels"
304 depends on !IA64_PAGE_SIZE_64KB
315 source kernel/Kconfig.hz
323 # align cache-sensitive data to 128 bytes
324 config IA64_L1_CACHE_SHIFT
326 default "7" if MCKINLEY
327 default "6" if ITANIUM
330 bool "Cyclone (EXA) Time Source support"
332 Say Y here to enable support for IBM EXA Cyclone time source.
333 If you're unsure, answer N.
337 depends on !IA64_HP_SIM
340 config FORCE_MAX_ZONEORDER
341 int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE
342 range 11 17 if !HUGETLB_PAGE
343 default "17" if HUGETLB_PAGE
347 bool "Symmetric multi-processing support"
348 select USE_GENERIC_SMP_HELPERS
350 This enables support for systems with more than one CPU. If you have
351 a system with only one CPU, say N. If you have a system with more
354 If you say N here, the kernel will run on single and multiprocessor
355 systems, but will use only one CPU of a multiprocessor system. If
356 you say Y here, the kernel will run on many, but not all,
357 single processor systems. On a single processor system, the kernel
358 will run faster if you say N here.
360 See also the SMP-HOWTO available at
361 <http://www.tldp.org/docs.html#howto>.
363 If you don't know what to do here, say N.
366 int "Maximum number of CPUs (2-4096)"
371 You should set this to the number of CPUs in your system, but
372 keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
373 only use 2 CPUs on a >2 CPU system. Setting this to a value larger
374 than 64 will cause the use of a CPU mask array, causing a small
378 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
379 depends on SMP && EXPERIMENTAL
383 Say Y here to experiment with turning CPUs off and on. CPUs
384 can be controlled through /sys/devices/system/cpu/cpu#.
385 Say N if you want to disable CPU hotplug.
387 config ARCH_ENABLE_MEMORY_HOTPLUG
390 config ARCH_ENABLE_MEMORY_HOTREMOVE
394 bool "SMT scheduler support"
397 Improves the CPU scheduler's decision making when dealing with
398 Intel IA64 chips with MultiThreading at a cost of slightly increased
399 overhead in some places. If unsure say N here.
401 config PERMIT_BSP_REMOVE
402 bool "Support removal of Bootstrap Processor"
403 depends on HOTPLUG_CPU
406 Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
409 config FORCE_CPEI_RETARGET
410 bool "Force assumption that CPEI can be re-targeted"
411 depends on PERMIT_BSP_REMOVE
414 Say Y if you need to force the assumption that CPEI can be re-targeted to
415 any cpu in the system. This hint is available via ACPI 3.0 specifications.
416 Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
417 This option it useful to enable this feature on older BIOS's as well.
418 You can also enable this by using boot command line option force_cpei=1.
420 source "kernel/Kconfig.preempt"
424 config ARCH_SELECT_MEMORY_MODEL
427 config ARCH_DISCONTIGMEM_ENABLE
430 Say Y to support efficient handling of discontiguous physical memory,
431 for architectures which are either NUMA (Non-Uniform Memory Access)
432 or have huge holes in the physical address space for other reasons.
433 See <file:Documentation/vm/numa> for more.
435 config ARCH_FLATMEM_ENABLE
438 config ARCH_SPARSEMEM_ENABLE
440 depends on ARCH_DISCONTIGMEM_ENABLE
441 select SPARSEMEM_VMEMMAP_ENABLE
443 config ARCH_DISCONTIGMEM_DEFAULT
444 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
445 depends on ARCH_DISCONTIGMEM_ENABLE
449 depends on !IA64_HP_SIM && !FLATMEM
450 default y if IA64_SGI_SN2
451 select ACPI_NUMA if ACPI
453 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
454 Access). This option is for configuring high-end multiprocessor
455 server systems. If in doubt, say N.
458 int "Max num nodes shift(3-10)"
461 depends on NEED_MULTIPLE_NODES
463 This option specifies the maximum number of nodes in your SSI system.
464 MAX_NUMNODES will be 2^(This value).
465 If in doubt, use the default.
467 # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
468 # VIRTUAL_MEM_MAP has been retained for historical reasons.
469 config VIRTUAL_MEM_MAP
470 bool "Virtual mem map"
471 depends on !SPARSEMEM
472 default y if !IA64_HP_SIM
474 Say Y to compile the kernel with support for a virtual mem map.
475 This code also only takes effect if a memory hole of greater than
476 1 Gb is found during boot. You must turn this option on if you
477 require the DISCONTIGMEM option for your machine. If you are
482 default y if VIRTUAL_MEM_MAP
484 config HAVE_ARCH_EARLY_PFN_TO_NID
485 def_bool NUMA && SPARSEMEM
487 config HAVE_ARCH_NODEDATA_EXTENSION
491 config USE_PERCPU_NUMA_NODE_ID
495 config HAVE_MEMORYLESS_NODES
498 config ARCH_PROC_KCORE_TEXT
500 depends on PROC_KCORE
502 config IA64_MCA_RECOVERY
503 tristate "MCA recovery from errors other than TLB."
506 bool "Performance monitor support"
508 Selects whether support for the IA-64 performance monitor hardware
509 is included in the kernel. This makes some kernel data-structures a
510 little bigger and slows down execution a bit, but it is generally
511 a good idea to turn this on. If you're unsure, say Y.
514 tristate "/proc/pal support"
516 If you say Y here, you are able to get PAL (Processor Abstraction
517 Layer) information in /proc/pal. This contains useful information
518 about the processors in your systems, such as cache and TLB sizes
519 and the PAL firmware version in use.
521 To use this option, you have to ensure that the "/proc file system
522 support" (CONFIG_PROC_FS) is enabled, too.
524 config IA64_MC_ERR_INJECT
525 tristate "MC error injection support"
527 Adds support for MC error injection. If enabled, the kernel
528 will provide a sysfs interface for user applications to
529 call MC error injection PAL procedures to inject various errors.
530 This is a useful tool for MCA testing.
532 If you're unsure, do not select this option.
535 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
538 bool "ESI (Extensible SAL Interface) support"
540 If you say Y here, support is built into the kernel to
541 make ESI calls. ESI calls are used to support vendor-specific
542 firmware extensions, such as the ability to inject memory-errors
543 for test-purposes. If you're unsure, say N.
545 config IA64_HP_AML_NFW
546 bool "Support ACPI AML calls to native firmware"
548 This driver installs a global ACPI Operation Region handler for
549 region 0xA1. AML methods can use this OpRegion to call arbitrary
550 native firmware functions. The driver installs the OpRegion
551 handler if there is an HPQ5001 device or if the user supplies
552 the "force" module parameter, e.g., with the "aml_nfw.force"
553 kernel command line option.
555 source "drivers/sn/Kconfig"
558 bool "kexec system call (EXPERIMENTAL)"
559 depends on EXPERIMENTAL && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
561 kexec is a system call that implements the ability to shutdown your
562 current kernel, and to start another kernel. It is like a reboot
563 but it is independent of the system firmware. And like a reboot
564 you can start any kernel with it, not just Linux.
566 The name comes from the similarity to the exec system call.
568 It is an ongoing process to be certain the hardware in a machine
569 is properly shutdown, so do not be surprised if this code does not
570 initially work for you. It may help to enable device hotplugging
571 support. As of this writing the exact hardware interface is
572 strongly in flux, so no good recommendation can be made.
575 bool "kernel crash dumps"
576 depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
578 Generate crash dump after being started by kexec.
580 source "drivers/firmware/Kconfig"
582 source "fs/Kconfig.binfmt"
586 menu "Power management and ACPI options"
588 source "kernel/power/Kconfig"
590 source "drivers/acpi/Kconfig"
594 source "arch/ia64/kernel/cpufreq/Kconfig"
602 menu "Bus options (PCI, PCMCIA)"
607 Real IA-64 machines all have PCI/PCI-X/PCI Express busses. Say Y
608 here unless you are using a simulator without PCI support.
616 source "drivers/pci/pcie/Kconfig"
618 source "drivers/pci/Kconfig"
620 source "drivers/pci/hotplug/Kconfig"
622 source "drivers/pcmcia/Kconfig"
630 source "drivers/Kconfig"
632 source "arch/ia64/hp/sim/Kconfig"
635 tristate "Memory special operations driver"
637 select IA64_UNCACHED_ALLOCATOR
639 If you have an ia64 and you want to enable memory special
640 operations support (formerly known as fetchop), say Y here,
645 source "arch/ia64/Kconfig.debug"
647 source "security/Kconfig"
649 source "crypto/Kconfig"
651 source "arch/ia64/kvm/Kconfig"
656 def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)