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 ARCH_MIGHT_HAVE_ACPI_PDC if ACPI
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
30 select ARCH_HAS_SG_CHAIN
32 select ARCH_DISCARD_MEMBLOCK
33 select GENERIC_IRQ_PROBE
34 select GENERIC_PENDING_IRQ if SMP
35 select GENERIC_IRQ_SHOW
36 select GENERIC_IRQ_LEGACY
37 select ARCH_WANT_OPTIONAL_GPIOLIB
38 select ARCH_HAVE_NMI_SAFE_CMPXCHG
40 select GENERIC_SMP_IDLE_THREAD
42 select ARCH_TASK_STRUCT_ALLOCATOR
43 select ARCH_THREAD_INFO_ALLOCATOR
44 select ARCH_CLOCKSOURCE_DATA
45 select GENERIC_TIME_VSYSCALL_OLD
46 select SYSCTL_ARCH_UNALIGN_NO_WARN
47 select HAVE_MOD_ARCH_SPECIFIC
48 select MODULES_USE_ELF_RELA
49 select ARCH_USE_CMPXCHG_LOCKREF
50 select HAVE_ARCH_AUDITSYSCALL
53 The Itanium Processor Family is Intel's 64-bit successor to
54 the 32-bit X86 line. The IA-64 Linux project has a home
55 page at <http://www.linuxia64.org/> and a mailing list at
56 <linux-ia64@vger.kernel.org>.
60 select ATA_NONSTANDARD if ATA
65 depends on !IA64_SGI_SN2
75 config ARCH_DMA_ADDR_T_64BIT
78 config NEED_DMA_MAP_STATE
81 config NEED_SG_DMA_LENGTH
87 config STACKTRACE_SUPPORT
90 config GENERIC_LOCKBREAK
93 config RWSEM_XCHGADD_ALGORITHM
97 config HUGETLB_PAGE_SIZE_VARIABLE
99 depends on HUGETLB_PAGE
102 config GENERIC_CALIBRATE_DELAY
106 config HAVE_SETUP_PER_CPU_AREA
112 select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
119 config SCHED_OMIT_FRAME_POINTER
123 config IA64_UNCACHED_ALLOCATOR
125 select GENERIC_ALLOCATOR
127 config ARCH_USES_PG_UNCACHED
129 depends on IA64_UNCACHED_ALLOCATOR
135 menuconfig PARAVIRT_GUEST
136 bool "Paravirtualized guest support"
139 Say Y here to get to see options related to running Linux under
140 various hypervisors. This option alone does not add any kernel code.
142 If you say N, all options in this submenu will be skipped and disabled.
147 bool "Enable paravirtualization code"
148 depends on PARAVIRT_GUEST
151 This changes the kernel so it can modify itself when it is run
152 under a hypervisor, potentially improving performance significantly
153 over full virtualization. However, when run without a hypervisor
154 the kernel is theoretically slower and slightly larger.
169 This selects the system type of your hardware. A "generic" kernel
170 will run on any supported IA-64 system. However, if you configure
171 a kernel for your specific system, it will be faster and smaller.
173 generic For any supported IA-64 system
174 DIG-compliant For DIG ("Developer's Interface Guide") compliant systems
175 DIG+Intel+IOMMU For DIG systems with Intel IOMMU
176 HP-zx1/sx1000 For HP systems
177 HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices.
178 SGI-SN2 For SGI Altix systems
179 SGI-UV For SGI UV systems
180 Ski-simulator For the HP simulator <http://www.hpl.hp.com/research/linux/ski/>
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
235 depends on !PM_RUNTIME
240 prompt "Processor type"
246 Select your IA-64 processor type. The default is Itanium.
247 This choice is safe for all IA-64 systems, but may not perform
248 optimally on systems with, say, Itanium 2 or newer processors.
253 Select this to configure for an Itanium 2 (McKinley) processor.
258 prompt "Kernel page size"
259 default IA64_PAGE_SIZE_16KB
261 config IA64_PAGE_SIZE_4KB
264 This lets you select the page size of the kernel. For best IA-64
265 performance, a page size of 8KB or 16KB is recommended. For best
266 IA-32 compatibility, a page size of 4KB should be selected (the vast
267 majority of IA-32 binaries work perfectly fine with a larger page
268 size). For Itanium 2 or newer systems, a page size of 64KB can also
271 4KB For best IA-32 compatibility
272 8KB For best IA-64 performance
273 16KB For best IA-64 performance
274 64KB Requires Itanium 2 or newer processor.
276 If you don't know what to do, choose 16KB.
278 config IA64_PAGE_SIZE_8KB
281 config IA64_PAGE_SIZE_16KB
284 config IA64_PAGE_SIZE_64KB
291 prompt "Page Table Levels"
298 depends on !IA64_PAGE_SIZE_64KB
309 source kernel/Kconfig.hz
317 # align cache-sensitive data to 128 bytes
318 config IA64_L1_CACHE_SHIFT
320 default "7" if MCKINLEY
321 default "6" if ITANIUM
324 bool "Cyclone (EXA) Time Source support"
326 Say Y here to enable support for IBM EXA Cyclone time source.
327 If you're unsure, answer N.
331 depends on !IA64_HP_SIM
334 config FORCE_MAX_ZONEORDER
335 int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE
336 range 11 17 if !HUGETLB_PAGE
337 default "17" if HUGETLB_PAGE
341 bool "Symmetric multi-processing support"
343 This enables support for systems with more than one CPU. If you have
344 a system with only one CPU, say N. If you have a system with more
347 If you say N here, the kernel will run on single and multiprocessor
348 systems, but will use only one CPU of a multiprocessor system. If
349 you say Y here, the kernel will run on many, but not all,
350 single processor systems. On a single processor system, the kernel
351 will run faster if you say N here.
353 See also the SMP-HOWTO available at
354 <http://www.tldp.org/docs.html#howto>.
356 If you don't know what to do here, say N.
359 int "Maximum number of CPUs (2-4096)"
364 You should set this to the number of CPUs in your system, but
365 keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
366 only use 2 CPUs on a >2 CPU system. Setting this to a value larger
367 than 64 will cause the use of a CPU mask array, causing a small
371 bool "Support for hot-pluggable CPUs"
375 Say Y here to experiment with turning CPUs off and on. CPUs
376 can be controlled through /sys/devices/system/cpu/cpu#.
377 Say N if you want to disable CPU hotplug.
379 config ARCH_ENABLE_MEMORY_HOTPLUG
382 config ARCH_ENABLE_MEMORY_HOTREMOVE
386 bool "SMT scheduler support"
389 Improves the CPU scheduler's decision making when dealing with
390 Intel IA64 chips with MultiThreading at a cost of slightly increased
391 overhead in some places. If unsure say N here.
393 config PERMIT_BSP_REMOVE
394 bool "Support removal of Bootstrap Processor"
395 depends on HOTPLUG_CPU
398 Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
401 config FORCE_CPEI_RETARGET
402 bool "Force assumption that CPEI can be re-targeted"
403 depends on PERMIT_BSP_REMOVE
406 Say Y if you need to force the assumption that CPEI can be re-targeted to
407 any cpu in the system. This hint is available via ACPI 3.0 specifications.
408 Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
409 This option it useful to enable this feature on older BIOS's as well.
410 You can also enable this by using boot command line option force_cpei=1.
412 source "kernel/Kconfig.preempt"
416 config ARCH_SELECT_MEMORY_MODEL
419 config ARCH_DISCONTIGMEM_ENABLE
422 Say Y to support efficient handling of discontiguous physical memory,
423 for architectures which are either NUMA (Non-Uniform Memory Access)
424 or have huge holes in the physical address space for other reasons.
425 See <file:Documentation/vm/numa> for more.
427 config ARCH_FLATMEM_ENABLE
430 config ARCH_SPARSEMEM_ENABLE
432 depends on ARCH_DISCONTIGMEM_ENABLE
433 select SPARSEMEM_VMEMMAP_ENABLE
435 config ARCH_DISCONTIGMEM_DEFAULT
436 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
437 depends on ARCH_DISCONTIGMEM_ENABLE
441 depends on !IA64_HP_SIM && !FLATMEM
442 default y if IA64_SGI_SN2
443 select ACPI_NUMA if ACPI
445 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
446 Access). This option is for configuring high-end multiprocessor
447 server systems. If in doubt, say N.
450 int "Max num nodes shift(3-10)"
453 depends on NEED_MULTIPLE_NODES
455 This option specifies the maximum number of nodes in your SSI system.
456 MAX_NUMNODES will be 2^(This value).
457 If in doubt, use the default.
459 # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
460 # VIRTUAL_MEM_MAP has been retained for historical reasons.
461 config VIRTUAL_MEM_MAP
462 bool "Virtual mem map"
463 depends on !SPARSEMEM
464 default y if !IA64_HP_SIM
466 Say Y to compile the kernel with support for a virtual mem map.
467 This code also only takes effect if a memory hole of greater than
468 1 Gb is found during boot. You must turn this option on if you
469 require the DISCONTIGMEM option for your machine. If you are
474 default y if VIRTUAL_MEM_MAP
476 config HAVE_ARCH_EARLY_PFN_TO_NID
477 def_bool NUMA && SPARSEMEM
479 config HAVE_ARCH_NODEDATA_EXTENSION
483 config USE_PERCPU_NUMA_NODE_ID
487 config HAVE_MEMORYLESS_NODES
490 config ARCH_PROC_KCORE_TEXT
492 depends on PROC_KCORE
494 config IA64_MCA_RECOVERY
495 tristate "MCA recovery from errors other than TLB."
498 bool "Performance monitor support"
500 Selects whether support for the IA-64 performance monitor hardware
501 is included in the kernel. This makes some kernel data-structures a
502 little bigger and slows down execution a bit, but it is generally
503 a good idea to turn this on. If you're unsure, say Y.
506 tristate "/proc/pal support"
508 If you say Y here, you are able to get PAL (Processor Abstraction
509 Layer) information in /proc/pal. This contains useful information
510 about the processors in your systems, such as cache and TLB sizes
511 and the PAL firmware version in use.
513 To use this option, you have to ensure that the "/proc file system
514 support" (CONFIG_PROC_FS) is enabled, too.
516 config IA64_MC_ERR_INJECT
517 tristate "MC error injection support"
519 Adds support for MC error injection. If enabled, the kernel
520 will provide a sysfs interface for user applications to
521 call MC error injection PAL procedures to inject various errors.
522 This is a useful tool for MCA testing.
524 If you're unsure, do not select this option.
527 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
530 bool "ESI (Extensible SAL Interface) support"
532 If you say Y here, support is built into the kernel to
533 make ESI calls. ESI calls are used to support vendor-specific
534 firmware extensions, such as the ability to inject memory-errors
535 for test-purposes. If you're unsure, say N.
537 config IA64_HP_AML_NFW
538 bool "Support ACPI AML calls to native firmware"
540 This driver installs a global ACPI Operation Region handler for
541 region 0xA1. AML methods can use this OpRegion to call arbitrary
542 native firmware functions. The driver installs the OpRegion
543 handler if there is an HPQ5001 device or if the user supplies
544 the "force" module parameter, e.g., with the "aml_nfw.force"
545 kernel command line option.
547 source "drivers/sn/Kconfig"
550 bool "kexec system call"
551 depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
553 kexec is a system call that implements the ability to shutdown your
554 current kernel, and to start another kernel. It is like a reboot
555 but it is independent of the system firmware. And like a reboot
556 you can start any kernel with it, not just Linux.
558 The name comes from the similarity to the exec system call.
560 It is an ongoing process to be certain the hardware in a machine
561 is properly shutdown, so do not be surprised if this code does not
562 initially work for you. As of this writing the exact hardware
563 interface is strongly in flux, so no good recommendation can be
567 bool "kernel crash dumps"
568 depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
570 Generate crash dump after being started by kexec.
572 source "drivers/firmware/Kconfig"
574 source "fs/Kconfig.binfmt"
578 menu "Power management and ACPI options"
580 source "kernel/power/Kconfig"
582 source "drivers/acpi/Kconfig"
585 menu "CPU Frequency scaling"
586 source "drivers/cpufreq/Kconfig"
594 menu "Bus options (PCI, PCMCIA)"
599 Real IA-64 machines all have PCI/PCI-X/PCI Express busses. Say Y
600 here unless you are using a simulator without PCI support.
608 source "drivers/pci/pcie/Kconfig"
610 source "drivers/pci/Kconfig"
612 source "drivers/pci/hotplug/Kconfig"
614 source "drivers/pcmcia/Kconfig"
622 source "drivers/Kconfig"
624 source "arch/ia64/hp/sim/Kconfig"
627 tristate "Memory special operations driver"
629 select IA64_UNCACHED_ALLOCATOR
631 If you have an ia64 and you want to enable memory special
632 operations support (formerly known as fetchop), say Y here,
637 source "arch/ia64/Kconfig.debug"
639 source "security/Kconfig"
641 source "crypto/Kconfig"
643 source "arch/ia64/kvm/Kconfig"
648 def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)