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 PM if (!IA64_HP_SIM)
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
24 select HAVE_ARCH_TRACEHOOK
25 select HAVE_DMA_API_DEBUG
27 select HAVE_MEMBLOCK_NODE_MAP
28 select HAVE_VIRT_CPU_ACCOUNTING
30 select ARCH_DISCARD_MEMBLOCK
31 select GENERIC_IRQ_PROBE
32 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 SYSCTL_ARCH_UNALIGN_NO_WARN
44 select HAVE_MOD_ARCH_SPECIFIC
45 select MODULES_USE_ELF_RELA
46 select ARCH_USE_CMPXCHG_LOCKREF
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
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"
349 This enables support for systems with more than one CPU. If you have
350 a system with only one CPU, say N. If you have a system with more
353 If you say N here, the kernel will run on single and multiprocessor
354 systems, but will use only one CPU of a multiprocessor system. If
355 you say Y here, the kernel will run on many, but not all,
356 single processor systems. On a single processor system, the kernel
357 will run faster if you say N here.
359 See also the SMP-HOWTO available at
360 <http://www.tldp.org/docs.html#howto>.
362 If you don't know what to do here, say N.
365 int "Maximum number of CPUs (2-4096)"
370 You should set this to the number of CPUs in your system, but
371 keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
372 only use 2 CPUs on a >2 CPU system. Setting this to a value larger
373 than 64 will cause the use of a CPU mask array, causing a small
377 bool "Support for hot-pluggable CPUs"
381 Say Y here to experiment with turning CPUs off and on. CPUs
382 can be controlled through /sys/devices/system/cpu/cpu#.
383 Say N if you want to disable CPU hotplug.
385 config ARCH_ENABLE_MEMORY_HOTPLUG
388 config ARCH_ENABLE_MEMORY_HOTREMOVE
392 bool "SMT scheduler support"
395 Improves the CPU scheduler's decision making when dealing with
396 Intel IA64 chips with MultiThreading at a cost of slightly increased
397 overhead in some places. If unsure say N here.
399 config PERMIT_BSP_REMOVE
400 bool "Support removal of Bootstrap Processor"
401 depends on HOTPLUG_CPU
404 Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
407 config FORCE_CPEI_RETARGET
408 bool "Force assumption that CPEI can be re-targeted"
409 depends on PERMIT_BSP_REMOVE
412 Say Y if you need to force the assumption that CPEI can be re-targeted to
413 any cpu in the system. This hint is available via ACPI 3.0 specifications.
414 Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
415 This option it useful to enable this feature on older BIOS's as well.
416 You can also enable this by using boot command line option force_cpei=1.
418 source "kernel/Kconfig.preempt"
422 config ARCH_SELECT_MEMORY_MODEL
425 config ARCH_DISCONTIGMEM_ENABLE
428 Say Y to support efficient handling of discontiguous physical memory,
429 for architectures which are either NUMA (Non-Uniform Memory Access)
430 or have huge holes in the physical address space for other reasons.
431 See <file:Documentation/vm/numa> for more.
433 config ARCH_FLATMEM_ENABLE
436 config ARCH_SPARSEMEM_ENABLE
438 depends on ARCH_DISCONTIGMEM_ENABLE
439 select SPARSEMEM_VMEMMAP_ENABLE
441 config ARCH_DISCONTIGMEM_DEFAULT
442 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
443 depends on ARCH_DISCONTIGMEM_ENABLE
447 depends on !IA64_HP_SIM && !FLATMEM
448 default y if IA64_SGI_SN2
449 select ACPI_NUMA if ACPI
451 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
452 Access). This option is for configuring high-end multiprocessor
453 server systems. If in doubt, say N.
456 int "Max num nodes shift(3-10)"
459 depends on NEED_MULTIPLE_NODES
461 This option specifies the maximum number of nodes in your SSI system.
462 MAX_NUMNODES will be 2^(This value).
463 If in doubt, use the default.
465 # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
466 # VIRTUAL_MEM_MAP has been retained for historical reasons.
467 config VIRTUAL_MEM_MAP
468 bool "Virtual mem map"
469 depends on !SPARSEMEM
470 default y if !IA64_HP_SIM
472 Say Y to compile the kernel with support for a virtual mem map.
473 This code also only takes effect if a memory hole of greater than
474 1 Gb is found during boot. You must turn this option on if you
475 require the DISCONTIGMEM option for your machine. If you are
480 default y if VIRTUAL_MEM_MAP
482 config HAVE_ARCH_EARLY_PFN_TO_NID
483 def_bool NUMA && SPARSEMEM
485 config HAVE_ARCH_NODEDATA_EXTENSION
489 config USE_PERCPU_NUMA_NODE_ID
493 config HAVE_MEMORYLESS_NODES
496 config ARCH_PROC_KCORE_TEXT
498 depends on PROC_KCORE
500 config IA64_MCA_RECOVERY
501 tristate "MCA recovery from errors other than TLB."
504 bool "Performance monitor support"
506 Selects whether support for the IA-64 performance monitor hardware
507 is included in the kernel. This makes some kernel data-structures a
508 little bigger and slows down execution a bit, but it is generally
509 a good idea to turn this on. If you're unsure, say Y.
512 tristate "/proc/pal support"
514 If you say Y here, you are able to get PAL (Processor Abstraction
515 Layer) information in /proc/pal. This contains useful information
516 about the processors in your systems, such as cache and TLB sizes
517 and the PAL firmware version in use.
519 To use this option, you have to ensure that the "/proc file system
520 support" (CONFIG_PROC_FS) is enabled, too.
522 config IA64_MC_ERR_INJECT
523 tristate "MC error injection support"
525 Adds support for MC error injection. If enabled, the kernel
526 will provide a sysfs interface for user applications to
527 call MC error injection PAL procedures to inject various errors.
528 This is a useful tool for MCA testing.
530 If you're unsure, do not select this option.
533 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
536 bool "ESI (Extensible SAL Interface) support"
538 If you say Y here, support is built into the kernel to
539 make ESI calls. ESI calls are used to support vendor-specific
540 firmware extensions, such as the ability to inject memory-errors
541 for test-purposes. If you're unsure, say N.
543 config IA64_HP_AML_NFW
544 bool "Support ACPI AML calls to native firmware"
546 This driver installs a global ACPI Operation Region handler for
547 region 0xA1. AML methods can use this OpRegion to call arbitrary
548 native firmware functions. The driver installs the OpRegion
549 handler if there is an HPQ5001 device or if the user supplies
550 the "force" module parameter, e.g., with the "aml_nfw.force"
551 kernel command line option.
553 source "drivers/sn/Kconfig"
556 bool "kexec system call"
557 depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
559 kexec is a system call that implements the ability to shutdown your
560 current kernel, and to start another kernel. It is like a reboot
561 but it is independent of the system firmware. And like a reboot
562 you can start any kernel with it, not just Linux.
564 The name comes from the similarity to the exec system call.
566 It is an ongoing process to be certain the hardware in a machine
567 is properly shutdown, so do not be surprised if this code does not
568 initially work for you. As of this writing the exact hardware
569 interface is strongly in flux, so no good recommendation can be
573 bool "kernel crash dumps"
574 depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
576 Generate crash dump after being started by kexec.
578 source "drivers/firmware/Kconfig"
580 source "fs/Kconfig.binfmt"
584 menu "Power management and ACPI options"
586 source "kernel/power/Kconfig"
588 source "drivers/acpi/Kconfig"
591 menu "CPU Frequency scaling"
592 source "drivers/cpufreq/Kconfig"
600 menu "Bus options (PCI, PCMCIA)"
605 Real IA-64 machines all have PCI/PCI-X/PCI Express busses. Say Y
606 here unless you are using a simulator without PCI support.
614 source "drivers/pci/pcie/Kconfig"
616 source "drivers/pci/Kconfig"
618 source "drivers/pci/hotplug/Kconfig"
620 source "drivers/pcmcia/Kconfig"
628 source "drivers/Kconfig"
630 source "arch/ia64/hp/sim/Kconfig"
633 tristate "Memory special operations driver"
635 select IA64_UNCACHED_ALLOCATOR
637 If you have an ia64 and you want to enable memory special
638 operations support (formerly known as fetchop), say Y here,
643 source "arch/ia64/Kconfig.debug"
645 source "security/Kconfig"
647 source "crypto/Kconfig"
649 source "arch/ia64/kvm/Kconfig"
654 def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)