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 ARCH_DISCARD_MEMBLOCK
29 select GENERIC_IRQ_PROBE
30 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
40 The Itanium Processor Family is Intel's 64-bit successor to
41 the 32-bit X86 line. The IA-64 Linux project has a home
42 page at <http://www.linuxia64.org/> and a mailing list at
43 <linux-ia64@vger.kernel.org>.
47 select ATA_NONSTANDARD if ATA
52 depends on !IA64_SGI_SN2
62 config ARCH_DMA_ADDR_T_64BIT
65 config NEED_DMA_MAP_STATE
68 config NEED_SG_DMA_LENGTH
74 config STACKTRACE_SUPPORT
77 config GENERIC_LOCKBREAK
80 config RWSEM_XCHGADD_ALGORITHM
84 config HUGETLB_PAGE_SIZE_VARIABLE
86 depends on HUGETLB_PAGE
89 config GENERIC_CALIBRATE_DELAY
93 config GENERIC_TIME_VSYSCALL
97 config HAVE_SETUP_PER_CPU_AREA
111 config ARCH_CLOCKSOURCE_DATA
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"
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
147 This changes the kernel so it can modify itself when it is run
148 under a hypervisor, potentially improving performance significantly
149 over full virtualization. However, when run without a hypervisor
150 the kernel is theoretically slower and slightly larger.
153 source "arch/ia64/xen/Kconfig"
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/>
180 Xen-domU For xen domU system
182 If you don't know what to do, choose "generic".
189 bool "DIG+Intel+IOMMU"
196 Build a kernel that runs on HP zx1 and sx1000 systems. This adds
197 support for the HP I/O MMU.
199 config IA64_HP_ZX1_SWIOTLB
200 bool "HP-zx1/sx1000 with software I/O TLB"
203 Build a kernel that runs on HP zx1 and sx1000 systems even when they
204 have broken PCI devices which cannot DMA to full 32 bits. Apart
205 from support for the HP I/O MMU, this includes support for the software
206 I/O TLB, which allows supporting the broken devices at the expense of
207 wasting some kernel memory (about 2MB by default).
214 Selecting this option will optimize the kernel for use on sn2 based
215 systems, but the resulting kernel binary will not run on other
216 types of ia64 systems. If you have an SGI Altix system, it's safe
217 to select this option. If in doubt, select ia64 generic support
226 Selecting this option will optimize the kernel for use on UV based
227 systems, but the resulting kernel binary will not run on other
228 types of ia64 systems. If you have an SGI UV system, it's safe
229 to select this option. If in doubt, select ia64 generic support
236 config IA64_XEN_GUEST
241 Build a kernel that runs on Xen guest domain. At this moment only
242 16KB page size in supported.
247 prompt "Processor type"
253 Select your IA-64 processor type. The default is Itanium.
254 This choice is safe for all IA-64 systems, but may not perform
255 optimally on systems with, say, Itanium 2 or newer processors.
260 Select this to configure for an Itanium 2 (McKinley) processor.
265 prompt "Kernel page size"
266 default IA64_PAGE_SIZE_16KB
268 config IA64_PAGE_SIZE_4KB
271 This lets you select the page size of the kernel. For best IA-64
272 performance, a page size of 8KB or 16KB is recommended. For best
273 IA-32 compatibility, a page size of 4KB should be selected (the vast
274 majority of IA-32 binaries work perfectly fine with a larger page
275 size). For Itanium 2 or newer systems, a page size of 64KB can also
278 4KB For best IA-32 compatibility
279 8KB For best IA-64 performance
280 16KB For best IA-64 performance
281 64KB Requires Itanium 2 or newer processor.
283 If you don't know what to do, choose 16KB.
285 config IA64_PAGE_SIZE_8KB
288 config IA64_PAGE_SIZE_16KB
291 config IA64_PAGE_SIZE_64KB
298 prompt "Page Table Levels"
305 depends on !IA64_PAGE_SIZE_64KB
316 source kernel/Kconfig.hz
324 # align cache-sensitive data to 128 bytes
325 config IA64_L1_CACHE_SHIFT
327 default "7" if MCKINLEY
328 default "6" if ITANIUM
331 bool "Cyclone (EXA) Time Source support"
333 Say Y here to enable support for IBM EXA Cyclone time source.
334 If you're unsure, answer N.
338 depends on !IA64_HP_SIM
341 config FORCE_MAX_ZONEORDER
342 int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE
343 range 11 17 if !HUGETLB_PAGE
344 default "17" if HUGETLB_PAGE
347 config VIRT_CPU_ACCOUNTING
348 bool "Deterministic task and CPU time accounting"
351 Select this option to enable more accurate task and CPU time
352 accounting. This is done by reading a CPU counter on each
353 kernel entry and exit and on transitions within the kernel
354 between system, softirq and hardirq state, so there is a
355 small performance impact.
356 If in doubt, say N here.
359 bool "Symmetric multi-processing support"
360 select USE_GENERIC_SMP_HELPERS
362 This enables support for systems with more than one CPU. If you have
363 a system with only one CPU, say N. If you have a system with more
366 If you say N here, the kernel will run on single and multiprocessor
367 systems, but will use only one CPU of a multiprocessor system. If
368 you say Y here, the kernel will run on many, but not all,
369 single processor systems. On a single processor system, the kernel
370 will run faster if you say N here.
372 See also the SMP-HOWTO available at
373 <http://www.tldp.org/docs.html#howto>.
375 If you don't know what to do here, say N.
378 int "Maximum number of CPUs (2-4096)"
383 You should set this to the number of CPUs in your system, but
384 keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
385 only use 2 CPUs on a >2 CPU system. Setting this to a value larger
386 than 64 will cause the use of a CPU mask array, causing a small
390 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
391 depends on SMP && EXPERIMENTAL
395 Say Y here to experiment with turning CPUs off and on. CPUs
396 can be controlled through /sys/devices/system/cpu/cpu#.
397 Say N if you want to disable CPU hotplug.
399 config ARCH_ENABLE_MEMORY_HOTPLUG
402 config ARCH_ENABLE_MEMORY_HOTREMOVE
406 bool "SMT scheduler support"
409 Improves the CPU scheduler's decision making when dealing with
410 Intel IA64 chips with MultiThreading at a cost of slightly increased
411 overhead in some places. If unsure say N here.
413 config PERMIT_BSP_REMOVE
414 bool "Support removal of Bootstrap Processor"
415 depends on HOTPLUG_CPU
418 Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
421 config FORCE_CPEI_RETARGET
422 bool "Force assumption that CPEI can be re-targeted"
423 depends on PERMIT_BSP_REMOVE
426 Say Y if you need to force the assumption that CPEI can be re-targeted to
427 any cpu in the system. This hint is available via ACPI 3.0 specifications.
428 Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
429 This option it useful to enable this feature on older BIOS's as well.
430 You can also enable this by using boot command line option force_cpei=1.
432 source "kernel/Kconfig.preempt"
436 config ARCH_SELECT_MEMORY_MODEL
439 config ARCH_DISCONTIGMEM_ENABLE
442 Say Y to support efficient handling of discontiguous physical memory,
443 for architectures which are either NUMA (Non-Uniform Memory Access)
444 or have huge holes in the physical address space for other reasons.
445 See <file:Documentation/vm/numa> for more.
447 config ARCH_FLATMEM_ENABLE
450 config ARCH_SPARSEMEM_ENABLE
452 depends on ARCH_DISCONTIGMEM_ENABLE
453 select SPARSEMEM_VMEMMAP_ENABLE
455 config ARCH_DISCONTIGMEM_DEFAULT
456 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
457 depends on ARCH_DISCONTIGMEM_ENABLE
461 depends on !IA64_HP_SIM && !FLATMEM
462 default y if IA64_SGI_SN2
463 select ACPI_NUMA if ACPI
465 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
466 Access). This option is for configuring high-end multiprocessor
467 server systems. If in doubt, say N.
470 int "Max num nodes shift(3-10)"
473 depends on NEED_MULTIPLE_NODES
475 This option specifies the maximum number of nodes in your SSI system.
476 MAX_NUMNODES will be 2^(This value).
477 If in doubt, use the default.
479 # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
480 # VIRTUAL_MEM_MAP has been retained for historical reasons.
481 config VIRTUAL_MEM_MAP
482 bool "Virtual mem map"
483 depends on !SPARSEMEM
484 default y if !IA64_HP_SIM
486 Say Y to compile the kernel with support for a virtual mem map.
487 This code also only takes effect if a memory hole of greater than
488 1 Gb is found during boot. You must turn this option on if you
489 require the DISCONTIGMEM option for your machine. If you are
494 default y if VIRTUAL_MEM_MAP
496 config HAVE_ARCH_EARLY_PFN_TO_NID
497 def_bool NUMA && SPARSEMEM
499 config HAVE_ARCH_NODEDATA_EXTENSION
503 config USE_PERCPU_NUMA_NODE_ID
507 config HAVE_MEMORYLESS_NODES
510 config ARCH_PROC_KCORE_TEXT
512 depends on PROC_KCORE
514 config IA64_MCA_RECOVERY
515 tristate "MCA recovery from errors other than TLB."
518 bool "Performance monitor support"
520 Selects whether support for the IA-64 performance monitor hardware
521 is included in the kernel. This makes some kernel data-structures a
522 little bigger and slows down execution a bit, but it is generally
523 a good idea to turn this on. If you're unsure, say Y.
526 tristate "/proc/pal support"
528 If you say Y here, you are able to get PAL (Processor Abstraction
529 Layer) information in /proc/pal. This contains useful information
530 about the processors in your systems, such as cache and TLB sizes
531 and the PAL firmware version in use.
533 To use this option, you have to ensure that the "/proc file system
534 support" (CONFIG_PROC_FS) is enabled, too.
536 config IA64_MC_ERR_INJECT
537 tristate "MC error injection support"
539 Adds support for MC error injection. If enabled, the kernel
540 will provide a sysfs interface for user applications to
541 call MC error injection PAL procedures to inject various errors.
542 This is a useful tool for MCA testing.
544 If you're unsure, do not select this option.
547 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
550 bool "ESI (Extensible SAL Interface) support"
552 If you say Y here, support is built into the kernel to
553 make ESI calls. ESI calls are used to support vendor-specific
554 firmware extensions, such as the ability to inject memory-errors
555 for test-purposes. If you're unsure, say N.
557 config IA64_HP_AML_NFW
558 bool "Support ACPI AML calls to native firmware"
560 This driver installs a global ACPI Operation Region handler for
561 region 0xA1. AML methods can use this OpRegion to call arbitrary
562 native firmware functions. The driver installs the OpRegion
563 handler if there is an HPQ5001 device or if the user supplies
564 the "force" module parameter, e.g., with the "aml_nfw.force"
565 kernel command line option.
567 source "drivers/sn/Kconfig"
570 bool "kexec system call (EXPERIMENTAL)"
571 depends on EXPERIMENTAL && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
573 kexec is a system call that implements the ability to shutdown your
574 current kernel, and to start another kernel. It is like a reboot
575 but it is independent of the system firmware. And like a reboot
576 you can start any kernel with it, not just Linux.
578 The name comes from the similarity to the exec system call.
580 It is an ongoing process to be certain the hardware in a machine
581 is properly shutdown, so do not be surprised if this code does not
582 initially work for you. It may help to enable device hotplugging
583 support. As of this writing the exact hardware interface is
584 strongly in flux, so no good recommendation can be made.
587 bool "kernel crash dumps"
588 depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
590 Generate crash dump after being started by kexec.
592 source "drivers/firmware/Kconfig"
594 source "fs/Kconfig.binfmt"
598 menu "Power management and ACPI options"
600 source "kernel/power/Kconfig"
602 source "drivers/acpi/Kconfig"
606 source "arch/ia64/kernel/cpufreq/Kconfig"
614 menu "Bus options (PCI, PCMCIA)"
619 Real IA-64 machines all have PCI/PCI-X/PCI Express busses. Say Y
620 here unless you are using a simulator without PCI support.
628 source "drivers/pci/pcie/Kconfig"
630 source "drivers/pci/Kconfig"
632 source "drivers/pci/hotplug/Kconfig"
634 source "drivers/pcmcia/Kconfig"
642 source "drivers/Kconfig"
644 source "arch/ia64/hp/sim/Kconfig"
647 tristate "Memory special operations driver"
649 select IA64_UNCACHED_ALLOCATOR
651 If you have an ia64 and you want to enable memory special
652 operations support (formerly known as fetchop), say Y here,
657 source "arch/ia64/Kconfig.debug"
659 source "security/Kconfig"
661 source "crypto/Kconfig"
663 source "arch/ia64/kvm/Kconfig"
668 def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)