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 PM if (!IA64_HP_SIM)
15 select HAVE_UNSTABLE_SCHED_CLOCK
19 select HAVE_KRETPROBES
20 select HAVE_FTRACE_MCOUNT_RECORD
21 select HAVE_DYNAMIC_FTRACE if (!ITANIUM)
22 select HAVE_FUNCTION_TRACER
26 select HAVE_ARCH_TRACEHOOK
27 select HAVE_DMA_API_DEBUG
29 select HAVE_MEMBLOCK_NODE_MAP
30 select HAVE_VIRT_CPU_ACCOUNTING
31 select ARCH_HAS_SG_CHAIN
33 select ARCH_DISCARD_MEMBLOCK
34 select GENERIC_IRQ_PROBE
35 select GENERIC_PENDING_IRQ if SMP
36 select GENERIC_IRQ_SHOW
37 select GENERIC_IRQ_LEGACY
38 select ARCH_WANT_OPTIONAL_GPIOLIB
39 select ARCH_HAVE_NMI_SAFE_CMPXCHG
41 select GENERIC_SMP_IDLE_THREAD
43 select ARCH_TASK_STRUCT_ALLOCATOR
44 select ARCH_THREAD_INFO_ALLOCATOR
45 select ARCH_CLOCKSOURCE_DATA
46 select GENERIC_TIME_VSYSCALL_OLD
47 select SYSCTL_ARCH_UNALIGN_NO_WARN
48 select HAVE_MOD_ARCH_SPECIFIC
49 select MODULES_USE_ELF_RELA
50 select ARCH_USE_CMPXCHG_LOCKREF
51 select HAVE_ARCH_AUDITSYSCALL
54 The Itanium Processor Family is Intel's 64-bit successor to
55 the 32-bit X86 line. The IA-64 Linux project has a home
56 page at <http://www.linuxia64.org/> and a mailing list at
57 <linux-ia64@vger.kernel.org>.
61 select ATA_NONSTANDARD if ATA
66 depends on !IA64_SGI_SN2
76 config ARCH_DMA_ADDR_T_64BIT
79 config NEED_DMA_MAP_STATE
82 config NEED_SG_DMA_LENGTH
88 config STACKTRACE_SUPPORT
91 config GENERIC_LOCKBREAK
94 config RWSEM_XCHGADD_ALGORITHM
98 config HUGETLB_PAGE_SIZE_VARIABLE
100 depends on HUGETLB_PAGE
103 config GENERIC_CALIBRATE_DELAY
107 config HAVE_SETUP_PER_CPU_AREA
113 select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
120 config SCHED_OMIT_FRAME_POINTER
124 config IA64_UNCACHED_ALLOCATOR
126 select GENERIC_ALLOCATOR
128 config ARCH_USES_PG_UNCACHED
130 depends on IA64_UNCACHED_ALLOCATOR
136 menuconfig PARAVIRT_GUEST
137 bool "Paravirtualized guest support"
140 Say Y here to get to see options related to running Linux under
141 various hypervisors. This option alone does not add any kernel code.
143 If you say N, all options in this submenu will be skipped and disabled.
148 bool "Enable paravirtualization code"
149 depends on PARAVIRT_GUEST
152 This changes the kernel so it can modify itself when it is run
153 under a hypervisor, potentially improving performance significantly
154 over full virtualization. However, when run without a hypervisor
155 the kernel is theoretically slower and slightly larger.
170 This selects the system type of your hardware. A "generic" kernel
171 will run on any supported IA-64 system. However, if you configure
172 a kernel for your specific system, it will be faster and smaller.
174 generic For any supported IA-64 system
175 DIG-compliant For DIG ("Developer's Interface Guide") compliant systems
176 DIG+Intel+IOMMU For DIG systems with Intel IOMMU
177 HP-zx1/sx1000 For HP systems
178 HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices.
179 SGI-SN2 For SGI Altix systems
180 SGI-UV For SGI UV systems
181 Ski-simulator For the HP simulator <http://www.hpl.hp.com/research/linux/ski/>
183 If you don't know what to do, choose "generic".
190 bool "DIG+Intel+IOMMU"
197 Build a kernel that runs on HP zx1 and sx1000 systems. This adds
198 support for the HP I/O MMU.
200 config IA64_HP_ZX1_SWIOTLB
201 bool "HP-zx1/sx1000 with software I/O TLB"
204 Build a kernel that runs on HP zx1 and sx1000 systems even when they
205 have broken PCI devices which cannot DMA to full 32 bits. Apart
206 from support for the HP I/O MMU, this includes support for the software
207 I/O TLB, which allows supporting the broken devices at the expense of
208 wasting some kernel memory (about 2MB by default).
215 Selecting this option will optimize the kernel for use on sn2 based
216 systems, but the resulting kernel binary will not run on other
217 types of ia64 systems. If you have an SGI Altix system, it's safe
218 to select this option. If in doubt, select ia64 generic support
227 Selecting this option will optimize the kernel for use on UV based
228 systems, but the resulting kernel binary will not run on other
229 types of ia64 systems. If you have an SGI UV system, it's safe
230 to select this option. If in doubt, select ia64 generic support
236 depends on !PM_RUNTIME
241 prompt "Processor type"
247 Select your IA-64 processor type. The default is Itanium.
248 This choice is safe for all IA-64 systems, but may not perform
249 optimally on systems with, say, Itanium 2 or newer processors.
254 Select this to configure for an Itanium 2 (McKinley) processor.
259 prompt "Kernel page size"
260 default IA64_PAGE_SIZE_16KB
262 config IA64_PAGE_SIZE_4KB
265 This lets you select the page size of the kernel. For best IA-64
266 performance, a page size of 8KB or 16KB is recommended. For best
267 IA-32 compatibility, a page size of 4KB should be selected (the vast
268 majority of IA-32 binaries work perfectly fine with a larger page
269 size). For Itanium 2 or newer systems, a page size of 64KB can also
272 4KB For best IA-32 compatibility
273 8KB For best IA-64 performance
274 16KB For best IA-64 performance
275 64KB Requires Itanium 2 or newer processor.
277 If you don't know what to do, choose 16KB.
279 config IA64_PAGE_SIZE_8KB
282 config IA64_PAGE_SIZE_16KB
285 config IA64_PAGE_SIZE_64KB
292 prompt "Page Table Levels"
299 depends on !IA64_PAGE_SIZE_64KB
310 source kernel/Kconfig.hz
318 # align cache-sensitive data to 128 bytes
319 config IA64_L1_CACHE_SHIFT
321 default "7" if MCKINLEY
322 default "6" if ITANIUM
325 bool "Cyclone (EXA) Time Source support"
327 Say Y here to enable support for IBM EXA Cyclone time source.
328 If you're unsure, answer N.
332 depends on !IA64_HP_SIM
335 config FORCE_MAX_ZONEORDER
336 int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE
337 range 11 17 if !HUGETLB_PAGE
338 default "17" if HUGETLB_PAGE
342 bool "Symmetric multi-processing support"
344 This enables support for systems with more than one CPU. If you have
345 a system with only one CPU, say N. If you have a system with more
348 If you say N here, the kernel will run on single and multiprocessor
349 systems, but will use only one CPU of a multiprocessor system. If
350 you say Y here, the kernel will run on many, but not all,
351 single processor systems. On a single processor system, the kernel
352 will run faster if you say N here.
354 See also the SMP-HOWTO available at
355 <http://www.tldp.org/docs.html#howto>.
357 If you don't know what to do here, say N.
360 int "Maximum number of CPUs (2-4096)"
365 You should set this to the number of CPUs in your system, but
366 keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
367 only use 2 CPUs on a >2 CPU system. Setting this to a value larger
368 than 64 will cause the use of a CPU mask array, causing a small
372 bool "Support for hot-pluggable CPUs"
376 Say Y here to experiment with turning CPUs off and on. CPUs
377 can be controlled through /sys/devices/system/cpu/cpu#.
378 Say N if you want to disable CPU hotplug.
380 config ARCH_ENABLE_MEMORY_HOTPLUG
383 config ARCH_ENABLE_MEMORY_HOTREMOVE
387 bool "SMT scheduler support"
390 Improves the CPU scheduler's decision making when dealing with
391 Intel IA64 chips with MultiThreading at a cost of slightly increased
392 overhead in some places. If unsure say N here.
394 config PERMIT_BSP_REMOVE
395 bool "Support removal of Bootstrap Processor"
396 depends on HOTPLUG_CPU
399 Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
402 config FORCE_CPEI_RETARGET
403 bool "Force assumption that CPEI can be re-targeted"
404 depends on PERMIT_BSP_REMOVE
407 Say Y if you need to force the assumption that CPEI can be re-targeted to
408 any cpu in the system. This hint is available via ACPI 3.0 specifications.
409 Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
410 This option it useful to enable this feature on older BIOS's as well.
411 You can also enable this by using boot command line option force_cpei=1.
413 source "kernel/Kconfig.preempt"
417 config ARCH_SELECT_MEMORY_MODEL
420 config ARCH_DISCONTIGMEM_ENABLE
423 Say Y to support efficient handling of discontiguous physical memory,
424 for architectures which are either NUMA (Non-Uniform Memory Access)
425 or have huge holes in the physical address space for other reasons.
426 See <file:Documentation/vm/numa> for more.
428 config ARCH_FLATMEM_ENABLE
431 config ARCH_SPARSEMEM_ENABLE
433 depends on ARCH_DISCONTIGMEM_ENABLE
434 select SPARSEMEM_VMEMMAP_ENABLE
436 config ARCH_DISCONTIGMEM_DEFAULT
437 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
438 depends on ARCH_DISCONTIGMEM_ENABLE
442 depends on !IA64_HP_SIM && !FLATMEM
443 default y if IA64_SGI_SN2
444 select ACPI_NUMA if ACPI
446 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
447 Access). This option is for configuring high-end multiprocessor
448 server systems. If in doubt, say N.
451 int "Max num nodes shift(3-10)"
454 depends on NEED_MULTIPLE_NODES
456 This option specifies the maximum number of nodes in your SSI system.
457 MAX_NUMNODES will be 2^(This value).
458 If in doubt, use the default.
460 # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
461 # VIRTUAL_MEM_MAP has been retained for historical reasons.
462 config VIRTUAL_MEM_MAP
463 bool "Virtual mem map"
464 depends on !SPARSEMEM
465 default y if !IA64_HP_SIM
467 Say Y to compile the kernel with support for a virtual mem map.
468 This code also only takes effect if a memory hole of greater than
469 1 Gb is found during boot. You must turn this option on if you
470 require the DISCONTIGMEM option for your machine. If you are
475 default y if VIRTUAL_MEM_MAP
477 config HAVE_ARCH_EARLY_PFN_TO_NID
478 def_bool NUMA && SPARSEMEM
480 config HAVE_ARCH_NODEDATA_EXTENSION
484 config USE_PERCPU_NUMA_NODE_ID
488 config HAVE_MEMORYLESS_NODES
491 config ARCH_PROC_KCORE_TEXT
493 depends on PROC_KCORE
495 config IA64_MCA_RECOVERY
496 tristate "MCA recovery from errors other than TLB."
499 bool "Performance monitor support"
501 Selects whether support for the IA-64 performance monitor hardware
502 is included in the kernel. This makes some kernel data-structures a
503 little bigger and slows down execution a bit, but it is generally
504 a good idea to turn this on. If you're unsure, say Y.
507 tristate "/proc/pal support"
509 If you say Y here, you are able to get PAL (Processor Abstraction
510 Layer) information in /proc/pal. This contains useful information
511 about the processors in your systems, such as cache and TLB sizes
512 and the PAL firmware version in use.
514 To use this option, you have to ensure that the "/proc file system
515 support" (CONFIG_PROC_FS) is enabled, too.
517 config IA64_MC_ERR_INJECT
518 tristate "MC error injection support"
520 Adds support for MC error injection. If enabled, the kernel
521 will provide a sysfs interface for user applications to
522 call MC error injection PAL procedures to inject various errors.
523 This is a useful tool for MCA testing.
525 If you're unsure, do not select this option.
528 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
531 bool "ESI (Extensible SAL Interface) support"
533 If you say Y here, support is built into the kernel to
534 make ESI calls. ESI calls are used to support vendor-specific
535 firmware extensions, such as the ability to inject memory-errors
536 for test-purposes. If you're unsure, say N.
538 config IA64_HP_AML_NFW
539 bool "Support ACPI AML calls to native firmware"
541 This driver installs a global ACPI Operation Region handler for
542 region 0xA1. AML methods can use this OpRegion to call arbitrary
543 native firmware functions. The driver installs the OpRegion
544 handler if there is an HPQ5001 device or if the user supplies
545 the "force" module parameter, e.g., with the "aml_nfw.force"
546 kernel command line option.
548 source "drivers/sn/Kconfig"
551 bool "kexec system call"
552 depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
554 kexec is a system call that implements the ability to shutdown your
555 current kernel, and to start another kernel. It is like a reboot
556 but it is independent of the system firmware. And like a reboot
557 you can start any kernel with it, not just Linux.
559 The name comes from the similarity to the exec system call.
561 It is an ongoing process to be certain the hardware in a machine
562 is properly shutdown, so do not be surprised if this code does not
563 initially work for you. As of this writing the exact hardware
564 interface is strongly in flux, so no good recommendation can be
568 bool "kernel crash dumps"
569 depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
571 Generate crash dump after being started by kexec.
573 source "drivers/firmware/Kconfig"
575 source "fs/Kconfig.binfmt"
579 menu "Power management and ACPI options"
581 source "kernel/power/Kconfig"
583 source "drivers/acpi/Kconfig"
586 menu "CPU Frequency scaling"
587 source "drivers/cpufreq/Kconfig"
595 menu "Bus options (PCI, PCMCIA)"
600 Real IA-64 machines all have PCI/PCI-X/PCI Express busses. Say Y
601 here unless you are using a simulator without PCI support.
609 source "drivers/pci/pcie/Kconfig"
611 source "drivers/pci/Kconfig"
613 source "drivers/pci/hotplug/Kconfig"
615 source "drivers/pcmcia/Kconfig"
623 source "drivers/Kconfig"
625 source "arch/ia64/hp/sim/Kconfig"
628 tristate "Memory special operations driver"
630 select IA64_UNCACHED_ALLOCATOR
632 If you have an ia64 and you want to enable memory special
633 operations support (formerly known as fetchop), say Y here,
638 source "arch/ia64/Kconfig.debug"
640 source "security/Kconfig"
642 source "crypto/Kconfig"
644 source "arch/ia64/kvm/Kconfig"
649 def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)