2 int "Page Table Levels" if !IA64_PAGE_SIZE_64KB
3 range 3 4 if !IA64_PAGE_SIZE_64KB
8 source "kernel/Kconfig.freezer"
10 menu "Processor type and features"
14 select ARCH_MIGHT_HAVE_PC_PARPORT
15 select ARCH_MIGHT_HAVE_PC_SERIO
16 select PCI if (!IA64_HP_SIM)
17 select ACPI if (!IA64_HP_SIM)
18 select ACPI_SYSTEM_POWER_STATES_SUPPORT if ACPI
19 select ARCH_MIGHT_HAVE_ACPI_PDC if ACPI
20 select HAVE_UNSTABLE_SCHED_CLOCK
21 select HAVE_EXIT_THREAD
25 select HAVE_KRETPROBES
26 select HAVE_FTRACE_MCOUNT_RECORD
27 select HAVE_DYNAMIC_FTRACE if (!ITANIUM)
28 select HAVE_FUNCTION_TRACER
30 select HAVE_ARCH_TRACEHOOK
31 select HAVE_DMA_API_DEBUG
33 select HAVE_MEMBLOCK_NODE_MAP
34 select HAVE_VIRT_CPU_ACCOUNTING
35 select ARCH_HAS_SG_CHAIN
37 select ARCH_DISCARD_MEMBLOCK
38 select GENERIC_IRQ_PROBE
39 select GENERIC_PENDING_IRQ if SMP
40 select GENERIC_IRQ_SHOW
41 select GENERIC_IRQ_LEGACY
42 select ARCH_HAVE_NMI_SAFE_CMPXCHG
44 select GENERIC_SMP_IDLE_THREAD
46 select ARCH_TASK_STRUCT_ALLOCATOR
47 select ARCH_THREAD_STACK_ALLOCATOR
48 select ARCH_CLOCKSOURCE_DATA
49 select GENERIC_TIME_VSYSCALL_OLD
50 select SYSCTL_ARCH_UNALIGN_NO_WARN
51 select HAVE_MOD_ARCH_SPECIFIC
52 select MODULES_USE_ELF_RELA
53 select ARCH_USE_CMPXCHG_LOCKREF
54 select HAVE_ARCH_AUDITSYSCALL
57 The Itanium Processor Family is Intel's 64-bit successor to
58 the 32-bit X86 line. The IA-64 Linux project has a home
59 page at <http://www.linuxia64.org/> and a mailing list at
60 <linux-ia64@vger.kernel.org>.
64 select ATA_NONSTANDARD if ATA
69 depends on !IA64_SGI_SN2
79 config ARCH_DMA_ADDR_T_64BIT
82 config NEED_DMA_MAP_STATE
85 config NEED_SG_DMA_LENGTH
91 config STACKTRACE_SUPPORT
94 config GENERIC_LOCKBREAK
97 config RWSEM_XCHGADD_ALGORITHM
101 config HUGETLB_PAGE_SIZE_VARIABLE
103 depends on HUGETLB_PAGE
106 config GENERIC_CALIBRATE_DELAY
110 config HAVE_SETUP_PER_CPU_AREA
116 select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
123 config SCHED_OMIT_FRAME_POINTER
127 config IA64_UNCACHED_ALLOCATOR
129 select GENERIC_ALLOCATOR
131 config ARCH_USES_PG_UNCACHED
133 depends on IA64_UNCACHED_ALLOCATOR
150 This selects the system type of your hardware. A "generic" kernel
151 will run on any supported IA-64 system. However, if you configure
152 a kernel for your specific system, it will be faster and smaller.
154 generic For any supported IA-64 system
155 DIG-compliant For DIG ("Developer's Interface Guide") compliant systems
156 DIG+Intel+IOMMU For DIG systems with Intel IOMMU
157 HP-zx1/sx1000 For HP systems
158 HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices.
159 SGI-SN2 For SGI Altix systems
160 SGI-UV For SGI UV systems
161 Ski-simulator For the HP simulator <http://www.hpl.hp.com/research/linux/ski/>
163 If you don't know what to do, choose "generic".
170 bool "DIG+Intel+IOMMU"
177 Build a kernel that runs on HP zx1 and sx1000 systems. This adds
178 support for the HP I/O MMU.
180 config IA64_HP_ZX1_SWIOTLB
181 bool "HP-zx1/sx1000 with software I/O TLB"
184 Build a kernel that runs on HP zx1 and sx1000 systems even when they
185 have broken PCI devices which cannot DMA to full 32 bits. Apart
186 from support for the HP I/O MMU, this includes support for the software
187 I/O TLB, which allows supporting the broken devices at the expense of
188 wasting some kernel memory (about 2MB by default).
195 Selecting this option will optimize the kernel for use on sn2 based
196 systems, but the resulting kernel binary will not run on other
197 types of ia64 systems. If you have an SGI Altix system, it's safe
198 to select this option. If in doubt, select ia64 generic support
207 Selecting this option will optimize the kernel for use on UV based
208 systems, but the resulting kernel binary will not run on other
209 types of ia64 systems. If you have an SGI UV system, it's safe
210 to select this option. If in doubt, select ia64 generic support
221 prompt "Processor type"
227 Select your IA-64 processor type. The default is Itanium.
228 This choice is safe for all IA-64 systems, but may not perform
229 optimally on systems with, say, Itanium 2 or newer processors.
234 Select this to configure for an Itanium 2 (McKinley) processor.
239 prompt "Kernel page size"
240 default IA64_PAGE_SIZE_16KB
242 config IA64_PAGE_SIZE_4KB
245 This lets you select the page size of the kernel. For best IA-64
246 performance, a page size of 8KB or 16KB is recommended. For best
247 IA-32 compatibility, a page size of 4KB should be selected (the vast
248 majority of IA-32 binaries work perfectly fine with a larger page
249 size). For Itanium 2 or newer systems, a page size of 64KB can also
252 4KB For best IA-32 compatibility
253 8KB For best IA-64 performance
254 16KB For best IA-64 performance
255 64KB Requires Itanium 2 or newer processor.
257 If you don't know what to do, choose 16KB.
259 config IA64_PAGE_SIZE_8KB
262 config IA64_PAGE_SIZE_16KB
265 config IA64_PAGE_SIZE_64KB
277 source kernel/Kconfig.hz
285 # align cache-sensitive data to 128 bytes
286 config IA64_L1_CACHE_SHIFT
288 default "7" if MCKINLEY
289 default "6" if ITANIUM
292 bool "Cyclone (EXA) Time Source support"
294 Say Y here to enable support for IBM EXA Cyclone time source.
295 If you're unsure, answer N.
299 depends on !IA64_HP_SIM
302 config FORCE_MAX_ZONEORDER
303 int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE
304 range 11 17 if !HUGETLB_PAGE
305 default "17" if HUGETLB_PAGE
309 bool "Symmetric multi-processing support"
311 This enables support for systems with more than one CPU. If you have
312 a system with only one CPU, say N. If you have a system with more
315 If you say N here, the kernel will run on single and multiprocessor
316 systems, but will use only one CPU of a multiprocessor system. If
317 you say Y here, the kernel will run on many, but not all,
318 single processor systems. On a single processor system, the kernel
319 will run faster if you say N here.
321 See also the SMP-HOWTO available at
322 <http://www.tldp.org/docs.html#howto>.
324 If you don't know what to do here, say N.
327 int "Maximum number of CPUs (2-4096)"
332 You should set this to the number of CPUs in your system, but
333 keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
334 only use 2 CPUs on a >2 CPU system. Setting this to a value larger
335 than 64 will cause the use of a CPU mask array, causing a small
339 bool "Support for hot-pluggable CPUs"
343 Say Y here to experiment with turning CPUs off and on. CPUs
344 can be controlled through /sys/devices/system/cpu/cpu#.
345 Say N if you want to disable CPU hotplug.
347 config ARCH_ENABLE_MEMORY_HOTPLUG
350 config ARCH_ENABLE_MEMORY_HOTREMOVE
354 bool "SMT scheduler support"
357 Improves the CPU scheduler's decision making when dealing with
358 Intel IA64 chips with MultiThreading at a cost of slightly increased
359 overhead in some places. If unsure say N here.
361 config PERMIT_BSP_REMOVE
362 bool "Support removal of Bootstrap Processor"
363 depends on HOTPLUG_CPU
366 Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
369 config FORCE_CPEI_RETARGET
370 bool "Force assumption that CPEI can be re-targeted"
371 depends on PERMIT_BSP_REMOVE
374 Say Y if you need to force the assumption that CPEI can be re-targeted to
375 any cpu in the system. This hint is available via ACPI 3.0 specifications.
376 Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
377 This option it useful to enable this feature on older BIOS's as well.
378 You can also enable this by using boot command line option force_cpei=1.
380 source "kernel/Kconfig.preempt"
384 config ARCH_SELECT_MEMORY_MODEL
387 config ARCH_DISCONTIGMEM_ENABLE
390 Say Y to support efficient handling of discontiguous physical memory,
391 for architectures which are either NUMA (Non-Uniform Memory Access)
392 or have huge holes in the physical address space for other reasons.
393 See <file:Documentation/vm/numa> for more.
395 config ARCH_FLATMEM_ENABLE
398 config ARCH_SPARSEMEM_ENABLE
400 depends on ARCH_DISCONTIGMEM_ENABLE
401 select SPARSEMEM_VMEMMAP_ENABLE
403 config ARCH_DISCONTIGMEM_DEFAULT
404 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
405 depends on ARCH_DISCONTIGMEM_ENABLE
409 depends on !IA64_HP_SIM && !FLATMEM
410 default y if IA64_SGI_SN2
411 select ACPI_NUMA if ACPI
413 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
414 Access). This option is for configuring high-end multiprocessor
415 server systems. If in doubt, say N.
418 int "Max num nodes shift(3-10)"
421 depends on NEED_MULTIPLE_NODES
423 This option specifies the maximum number of nodes in your SSI system.
424 MAX_NUMNODES will be 2^(This value).
425 If in doubt, use the default.
427 # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
428 # VIRTUAL_MEM_MAP has been retained for historical reasons.
429 config VIRTUAL_MEM_MAP
430 bool "Virtual mem map"
431 depends on !SPARSEMEM
432 default y if !IA64_HP_SIM
434 Say Y to compile the kernel with support for a virtual mem map.
435 This code also only takes effect if a memory hole of greater than
436 1 Gb is found during boot. You must turn this option on if you
437 require the DISCONTIGMEM option for your machine. If you are
442 default y if VIRTUAL_MEM_MAP
444 config HAVE_ARCH_EARLY_PFN_TO_NID
445 def_bool NUMA && SPARSEMEM
447 config HAVE_ARCH_NODEDATA_EXTENSION
451 config USE_PERCPU_NUMA_NODE_ID
455 config HAVE_MEMORYLESS_NODES
458 config ARCH_PROC_KCORE_TEXT
460 depends on PROC_KCORE
462 config IA64_MCA_RECOVERY
463 tristate "MCA recovery from errors other than TLB."
466 bool "Performance monitor support"
468 Selects whether support for the IA-64 performance monitor hardware
469 is included in the kernel. This makes some kernel data-structures a
470 little bigger and slows down execution a bit, but it is generally
471 a good idea to turn this on. If you're unsure, say Y.
474 tristate "/proc/pal support"
476 If you say Y here, you are able to get PAL (Processor Abstraction
477 Layer) information in /proc/pal. This contains useful information
478 about the processors in your systems, such as cache and TLB sizes
479 and the PAL firmware version in use.
481 To use this option, you have to ensure that the "/proc file system
482 support" (CONFIG_PROC_FS) is enabled, too.
484 config IA64_MC_ERR_INJECT
485 tristate "MC error injection support"
487 Adds support for MC error injection. If enabled, the kernel
488 will provide a sysfs interface for user applications to
489 call MC error injection PAL procedures to inject various errors.
490 This is a useful tool for MCA testing.
492 If you're unsure, do not select this option.
495 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
498 bool "ESI (Extensible SAL Interface) support"
500 If you say Y here, support is built into the kernel to
501 make ESI calls. ESI calls are used to support vendor-specific
502 firmware extensions, such as the ability to inject memory-errors
503 for test-purposes. If you're unsure, say N.
505 config IA64_HP_AML_NFW
506 bool "Support ACPI AML calls to native firmware"
508 This driver installs a global ACPI Operation Region handler for
509 region 0xA1. AML methods can use this OpRegion to call arbitrary
510 native firmware functions. The driver installs the OpRegion
511 handler if there is an HPQ5001 device or if the user supplies
512 the "force" module parameter, e.g., with the "aml_nfw.force"
513 kernel command line option.
515 source "drivers/sn/Kconfig"
518 bool "kexec system call"
519 depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
522 kexec is a system call that implements the ability to shutdown your
523 current kernel, and to start another kernel. It is like a reboot
524 but it is independent of the system firmware. And like a reboot
525 you can start any kernel with it, not just Linux.
527 The name comes from the similarity to the exec system call.
529 It is an ongoing process to be certain the hardware in a machine
530 is properly shutdown, so do not be surprised if this code does not
531 initially work for you. As of this writing the exact hardware
532 interface is strongly in flux, so no good recommendation can be
536 bool "kernel crash dumps"
537 depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
539 Generate crash dump after being started by kexec.
541 source "drivers/firmware/Kconfig"
543 source "fs/Kconfig.binfmt"
547 menu "Power management and ACPI options"
549 source "kernel/power/Kconfig"
551 source "drivers/acpi/Kconfig"
554 menu "CPU Frequency scaling"
555 source "drivers/cpufreq/Kconfig"
563 menu "Bus options (PCI, PCMCIA)"
568 Real IA-64 machines all have PCI/PCI-X/PCI Express busses. Say Y
569 here unless you are using a simulator without PCI support.
577 source "drivers/pci/Kconfig"
579 source "drivers/pcmcia/Kconfig"
587 source "drivers/Kconfig"
589 source "arch/ia64/hp/sim/Kconfig"
592 tristate "Memory special operations driver"
594 select IA64_UNCACHED_ALLOCATOR
596 If you have an ia64 and you want to enable memory special
597 operations support (formerly known as fetchop), say Y here,
602 source "arch/ia64/Kconfig.debug"
604 source "security/Kconfig"
606 source "crypto/Kconfig"
611 def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)