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
45 select GENERIC_KERNEL_THREAD
46 select GENERIC_KERNEL_EXECVE
49 The Itanium Processor Family is Intel's 64-bit successor to
50 the 32-bit X86 line. The IA-64 Linux project has a home
51 page at <http://www.linuxia64.org/> and a mailing list at
52 <linux-ia64@vger.kernel.org>.
56 select ATA_NONSTANDARD if ATA
61 depends on !IA64_SGI_SN2
71 config ARCH_DMA_ADDR_T_64BIT
74 config NEED_DMA_MAP_STATE
77 config NEED_SG_DMA_LENGTH
83 config STACKTRACE_SUPPORT
86 config GENERIC_LOCKBREAK
89 config RWSEM_XCHGADD_ALGORITHM
93 config HUGETLB_PAGE_SIZE_VARIABLE
95 depends on HUGETLB_PAGE
98 config GENERIC_CALIBRATE_DELAY
102 config HAVE_SETUP_PER_CPU_AREA
116 config SCHED_OMIT_FRAME_POINTER
120 config IA64_UNCACHED_ALLOCATOR
122 select GENERIC_ALLOCATOR
124 config ARCH_USES_PG_UNCACHED
126 depends on IA64_UNCACHED_ALLOCATOR
132 menuconfig PARAVIRT_GUEST
133 bool "Paravirtualized guest support"
136 Say Y here to get to see options related to running Linux under
137 various hypervisors. This option alone does not add any kernel code.
139 If you say N, all options in this submenu will be skipped and disabled.
144 bool "Enable paravirtualization code"
145 depends on PARAVIRT_GUEST
148 This changes the kernel so it can modify itself when it is run
149 under a hypervisor, potentially improving performance significantly
150 over full virtualization. However, when run without a hypervisor
151 the kernel is theoretically slower and slightly larger.
154 source "arch/ia64/xen/Kconfig"
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/>
181 Xen-domU For xen domU system
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
237 config IA64_XEN_GUEST
242 Build a kernel that runs on Xen guest domain. At this moment only
243 16KB page size in supported.
248 prompt "Processor type"
254 Select your IA-64 processor type. The default is Itanium.
255 This choice is safe for all IA-64 systems, but may not perform
256 optimally on systems with, say, Itanium 2 or newer processors.
261 Select this to configure for an Itanium 2 (McKinley) processor.
266 prompt "Kernel page size"
267 default IA64_PAGE_SIZE_16KB
269 config IA64_PAGE_SIZE_4KB
272 This lets you select the page size of the kernel. For best IA-64
273 performance, a page size of 8KB or 16KB is recommended. For best
274 IA-32 compatibility, a page size of 4KB should be selected (the vast
275 majority of IA-32 binaries work perfectly fine with a larger page
276 size). For Itanium 2 or newer systems, a page size of 64KB can also
279 4KB For best IA-32 compatibility
280 8KB For best IA-64 performance
281 16KB For best IA-64 performance
282 64KB Requires Itanium 2 or newer processor.
284 If you don't know what to do, choose 16KB.
286 config IA64_PAGE_SIZE_8KB
289 config IA64_PAGE_SIZE_16KB
292 config IA64_PAGE_SIZE_64KB
299 prompt "Page Table Levels"
306 depends on !IA64_PAGE_SIZE_64KB
317 source kernel/Kconfig.hz
325 # align cache-sensitive data to 128 bytes
326 config IA64_L1_CACHE_SHIFT
328 default "7" if MCKINLEY
329 default "6" if ITANIUM
332 bool "Cyclone (EXA) Time Source support"
334 Say Y here to enable support for IBM EXA Cyclone time source.
335 If you're unsure, answer N.
339 depends on !IA64_HP_SIM
342 config FORCE_MAX_ZONEORDER
343 int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE
344 range 11 17 if !HUGETLB_PAGE
345 default "17" if HUGETLB_PAGE
349 bool "Symmetric multi-processing support"
350 select USE_GENERIC_SMP_HELPERS
352 This enables support for systems with more than one CPU. If you have
353 a system with only one CPU, say N. If you have a system with more
356 If you say N here, the kernel will run on single and multiprocessor
357 systems, but will use only one CPU of a multiprocessor system. If
358 you say Y here, the kernel will run on many, but not all,
359 single processor systems. On a single processor system, the kernel
360 will run faster if you say N here.
362 See also the SMP-HOWTO available at
363 <http://www.tldp.org/docs.html#howto>.
365 If you don't know what to do here, say N.
368 int "Maximum number of CPUs (2-4096)"
373 You should set this to the number of CPUs in your system, but
374 keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
375 only use 2 CPUs on a >2 CPU system. Setting this to a value larger
376 than 64 will cause the use of a CPU mask array, causing a small
380 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
381 depends on SMP && EXPERIMENTAL
385 Say Y here to experiment with turning CPUs off and on. CPUs
386 can be controlled through /sys/devices/system/cpu/cpu#.
387 Say N if you want to disable CPU hotplug.
389 config ARCH_ENABLE_MEMORY_HOTPLUG
392 config ARCH_ENABLE_MEMORY_HOTREMOVE
396 bool "SMT scheduler support"
399 Improves the CPU scheduler's decision making when dealing with
400 Intel IA64 chips with MultiThreading at a cost of slightly increased
401 overhead in some places. If unsure say N here.
403 config PERMIT_BSP_REMOVE
404 bool "Support removal of Bootstrap Processor"
405 depends on HOTPLUG_CPU
408 Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
411 config FORCE_CPEI_RETARGET
412 bool "Force assumption that CPEI can be re-targeted"
413 depends on PERMIT_BSP_REMOVE
416 Say Y if you need to force the assumption that CPEI can be re-targeted to
417 any cpu in the system. This hint is available via ACPI 3.0 specifications.
418 Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
419 This option it useful to enable this feature on older BIOS's as well.
420 You can also enable this by using boot command line option force_cpei=1.
422 source "kernel/Kconfig.preempt"
426 config ARCH_SELECT_MEMORY_MODEL
429 config ARCH_DISCONTIGMEM_ENABLE
432 Say Y to support efficient handling of discontiguous physical memory,
433 for architectures which are either NUMA (Non-Uniform Memory Access)
434 or have huge holes in the physical address space for other reasons.
435 See <file:Documentation/vm/numa> for more.
437 config ARCH_FLATMEM_ENABLE
440 config ARCH_SPARSEMEM_ENABLE
442 depends on ARCH_DISCONTIGMEM_ENABLE
443 select SPARSEMEM_VMEMMAP_ENABLE
445 config ARCH_DISCONTIGMEM_DEFAULT
446 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
447 depends on ARCH_DISCONTIGMEM_ENABLE
451 depends on !IA64_HP_SIM && !FLATMEM
452 default y if IA64_SGI_SN2
453 select ACPI_NUMA if ACPI
455 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
456 Access). This option is for configuring high-end multiprocessor
457 server systems. If in doubt, say N.
460 int "Max num nodes shift(3-10)"
463 depends on NEED_MULTIPLE_NODES
465 This option specifies the maximum number of nodes in your SSI system.
466 MAX_NUMNODES will be 2^(This value).
467 If in doubt, use the default.
469 # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
470 # VIRTUAL_MEM_MAP has been retained for historical reasons.
471 config VIRTUAL_MEM_MAP
472 bool "Virtual mem map"
473 depends on !SPARSEMEM
474 default y if !IA64_HP_SIM
476 Say Y to compile the kernel with support for a virtual mem map.
477 This code also only takes effect if a memory hole of greater than
478 1 Gb is found during boot. You must turn this option on if you
479 require the DISCONTIGMEM option for your machine. If you are
484 default y if VIRTUAL_MEM_MAP
486 config HAVE_ARCH_EARLY_PFN_TO_NID
487 def_bool NUMA && SPARSEMEM
489 config HAVE_ARCH_NODEDATA_EXTENSION
493 config USE_PERCPU_NUMA_NODE_ID
497 config HAVE_MEMORYLESS_NODES
500 config ARCH_PROC_KCORE_TEXT
502 depends on PROC_KCORE
504 config IA64_MCA_RECOVERY
505 tristate "MCA recovery from errors other than TLB."
508 bool "Performance monitor support"
510 Selects whether support for the IA-64 performance monitor hardware
511 is included in the kernel. This makes some kernel data-structures a
512 little bigger and slows down execution a bit, but it is generally
513 a good idea to turn this on. If you're unsure, say Y.
516 tristate "/proc/pal support"
518 If you say Y here, you are able to get PAL (Processor Abstraction
519 Layer) information in /proc/pal. This contains useful information
520 about the processors in your systems, such as cache and TLB sizes
521 and the PAL firmware version in use.
523 To use this option, you have to ensure that the "/proc file system
524 support" (CONFIG_PROC_FS) is enabled, too.
526 config IA64_MC_ERR_INJECT
527 tristate "MC error injection support"
529 Adds support for MC error injection. If enabled, the kernel
530 will provide a sysfs interface for user applications to
531 call MC error injection PAL procedures to inject various errors.
532 This is a useful tool for MCA testing.
534 If you're unsure, do not select this option.
537 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
540 bool "ESI (Extensible SAL Interface) support"
542 If you say Y here, support is built into the kernel to
543 make ESI calls. ESI calls are used to support vendor-specific
544 firmware extensions, such as the ability to inject memory-errors
545 for test-purposes. If you're unsure, say N.
547 config IA64_HP_AML_NFW
548 bool "Support ACPI AML calls to native firmware"
550 This driver installs a global ACPI Operation Region handler for
551 region 0xA1. AML methods can use this OpRegion to call arbitrary
552 native firmware functions. The driver installs the OpRegion
553 handler if there is an HPQ5001 device or if the user supplies
554 the "force" module parameter, e.g., with the "aml_nfw.force"
555 kernel command line option.
557 source "drivers/sn/Kconfig"
560 bool "kexec system call (EXPERIMENTAL)"
561 depends on EXPERIMENTAL && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
563 kexec is a system call that implements the ability to shutdown your
564 current kernel, and to start another kernel. It is like a reboot
565 but it is independent of the system firmware. And like a reboot
566 you can start any kernel with it, not just Linux.
568 The name comes from the similarity to the exec system call.
570 It is an ongoing process to be certain the hardware in a machine
571 is properly shutdown, so do not be surprised if this code does not
572 initially work for you. It may help to enable device hotplugging
573 support. As of this writing the exact hardware interface is
574 strongly in flux, so no good recommendation can be made.
577 bool "kernel crash dumps"
578 depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
580 Generate crash dump after being started by kexec.
582 source "drivers/firmware/Kconfig"
584 source "fs/Kconfig.binfmt"
588 menu "Power management and ACPI options"
590 source "kernel/power/Kconfig"
592 source "drivers/acpi/Kconfig"
596 source "arch/ia64/kernel/cpufreq/Kconfig"
604 menu "Bus options (PCI, PCMCIA)"
609 Real IA-64 machines all have PCI/PCI-X/PCI Express busses. Say Y
610 here unless you are using a simulator without PCI support.
618 source "drivers/pci/pcie/Kconfig"
620 source "drivers/pci/Kconfig"
622 source "drivers/pci/hotplug/Kconfig"
624 source "drivers/pcmcia/Kconfig"
632 source "drivers/Kconfig"
634 source "arch/ia64/hp/sim/Kconfig"
637 tristate "Memory special operations driver"
639 select IA64_UNCACHED_ALLOCATOR
641 If you have an ia64 and you want to enable memory special
642 operations support (formerly known as fetchop), say Y here,
647 source "arch/ia64/Kconfig.debug"
649 source "security/Kconfig"
651 source "crypto/Kconfig"
653 source "arch/ia64/kvm/Kconfig"
658 def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)