3 source "kernel/Kconfig.freezer"
5 menu "Processor type and features"
9 select ARCH_MIGHT_HAVE_PC_PARPORT
10 select PCI if (!IA64_HP_SIM)
11 select ACPI if (!IA64_HP_SIM)
12 select PM if (!IA64_HP_SIM)
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
26 select HAVE_MEMBLOCK_NODE_MAP
27 select HAVE_VIRT_CPU_ACCOUNTING
29 select ARCH_DISCARD_MEMBLOCK
30 select GENERIC_IRQ_PROBE
31 select GENERIC_PENDING_IRQ if SMP
32 select GENERIC_IRQ_SHOW
33 select ARCH_WANT_OPTIONAL_GPIOLIB
34 select ARCH_HAVE_NMI_SAFE_CMPXCHG
36 select GENERIC_SMP_IDLE_THREAD
38 select ARCH_TASK_STRUCT_ALLOCATOR
39 select ARCH_THREAD_INFO_ALLOCATOR
40 select ARCH_CLOCKSOURCE_DATA
41 select GENERIC_TIME_VSYSCALL_OLD
42 select SYSCTL_ARCH_UNALIGN_NO_WARN
43 select HAVE_MOD_ARCH_SPECIFIC
44 select MODULES_USE_ELF_RELA
45 select ARCH_USE_CMPXCHG_LOCKREF
48 The Itanium Processor Family is Intel's 64-bit successor to
49 the 32-bit X86 line. The IA-64 Linux project has a home
50 page at <http://www.linuxia64.org/> and a mailing list at
51 <linux-ia64@vger.kernel.org>.
55 select ATA_NONSTANDARD if ATA
60 depends on !IA64_SGI_SN2
70 config ARCH_DMA_ADDR_T_64BIT
73 config NEED_DMA_MAP_STATE
76 config NEED_SG_DMA_LENGTH
82 config STACKTRACE_SUPPORT
85 config GENERIC_LOCKBREAK
88 config RWSEM_XCHGADD_ALGORITHM
92 config HUGETLB_PAGE_SIZE_VARIABLE
94 depends on HUGETLB_PAGE
97 config GENERIC_CALIBRATE_DELAY
101 config HAVE_SETUP_PER_CPU_AREA
107 select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
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.
164 This selects the system type of your hardware. A "generic" kernel
165 will run on any supported IA-64 system. However, if you configure
166 a kernel for your specific system, it will be faster and smaller.
168 generic For any supported IA-64 system
169 DIG-compliant For DIG ("Developer's Interface Guide") compliant systems
170 DIG+Intel+IOMMU For DIG systems with Intel IOMMU
171 HP-zx1/sx1000 For HP systems
172 HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices.
173 SGI-SN2 For SGI Altix systems
174 SGI-UV For SGI UV systems
175 Ski-simulator For the HP simulator <http://www.hpl.hp.com/research/linux/ski/>
177 If you don't know what to do, choose "generic".
184 bool "DIG+Intel+IOMMU"
191 Build a kernel that runs on HP zx1 and sx1000 systems. This adds
192 support for the HP I/O MMU.
194 config IA64_HP_ZX1_SWIOTLB
195 bool "HP-zx1/sx1000 with software I/O TLB"
198 Build a kernel that runs on HP zx1 and sx1000 systems even when they
199 have broken PCI devices which cannot DMA to full 32 bits. Apart
200 from support for the HP I/O MMU, this includes support for the software
201 I/O TLB, which allows supporting the broken devices at the expense of
202 wasting some kernel memory (about 2MB by default).
209 Selecting this option will optimize the kernel for use on sn2 based
210 systems, but the resulting kernel binary will not run on other
211 types of ia64 systems. If you have an SGI Altix system, it's safe
212 to select this option. If in doubt, select ia64 generic support
221 Selecting this option will optimize the kernel for use on UV based
222 systems, but the resulting kernel binary will not run on other
223 types of ia64 systems. If you have an SGI UV system, it's safe
224 to select this option. If in doubt, select ia64 generic support
234 prompt "Processor type"
240 Select your IA-64 processor type. The default is Itanium.
241 This choice is safe for all IA-64 systems, but may not perform
242 optimally on systems with, say, Itanium 2 or newer processors.
247 Select this to configure for an Itanium 2 (McKinley) processor.
252 prompt "Kernel page size"
253 default IA64_PAGE_SIZE_16KB
255 config IA64_PAGE_SIZE_4KB
258 This lets you select the page size of the kernel. For best IA-64
259 performance, a page size of 8KB or 16KB is recommended. For best
260 IA-32 compatibility, a page size of 4KB should be selected (the vast
261 majority of IA-32 binaries work perfectly fine with a larger page
262 size). For Itanium 2 or newer systems, a page size of 64KB can also
265 4KB For best IA-32 compatibility
266 8KB For best IA-64 performance
267 16KB For best IA-64 performance
268 64KB Requires Itanium 2 or newer processor.
270 If you don't know what to do, choose 16KB.
272 config IA64_PAGE_SIZE_8KB
275 config IA64_PAGE_SIZE_16KB
278 config IA64_PAGE_SIZE_64KB
285 prompt "Page Table Levels"
292 depends on !IA64_PAGE_SIZE_64KB
303 source kernel/Kconfig.hz
311 # align cache-sensitive data to 128 bytes
312 config IA64_L1_CACHE_SHIFT
314 default "7" if MCKINLEY
315 default "6" if ITANIUM
318 bool "Cyclone (EXA) Time Source support"
320 Say Y here to enable support for IBM EXA Cyclone time source.
321 If you're unsure, answer N.
325 depends on !IA64_HP_SIM
328 config FORCE_MAX_ZONEORDER
329 int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE
330 range 11 17 if !HUGETLB_PAGE
331 default "17" if HUGETLB_PAGE
335 bool "Symmetric multi-processing support"
337 This enables support for systems with more than one CPU. If you have
338 a system with only one CPU, say N. If you have a system with more
341 If you say N here, the kernel will run on single and multiprocessor
342 systems, but will use only one CPU of a multiprocessor system. If
343 you say Y here, the kernel will run on many, but not all,
344 single processor systems. On a single processor system, the kernel
345 will run faster if you say N here.
347 See also the SMP-HOWTO available at
348 <http://www.tldp.org/docs.html#howto>.
350 If you don't know what to do here, say N.
353 int "Maximum number of CPUs (2-4096)"
358 You should set this to the number of CPUs in your system, but
359 keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
360 only use 2 CPUs on a >2 CPU system. Setting this to a value larger
361 than 64 will cause the use of a CPU mask array, causing a small
365 bool "Support for hot-pluggable CPUs"
369 Say Y here to experiment with turning CPUs off and on. CPUs
370 can be controlled through /sys/devices/system/cpu/cpu#.
371 Say N if you want to disable CPU hotplug.
373 config ARCH_ENABLE_MEMORY_HOTPLUG
376 config ARCH_ENABLE_MEMORY_HOTREMOVE
380 bool "SMT scheduler support"
383 Improves the CPU scheduler's decision making when dealing with
384 Intel IA64 chips with MultiThreading at a cost of slightly increased
385 overhead in some places. If unsure say N here.
387 config PERMIT_BSP_REMOVE
388 bool "Support removal of Bootstrap Processor"
389 depends on HOTPLUG_CPU
392 Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
395 config FORCE_CPEI_RETARGET
396 bool "Force assumption that CPEI can be re-targeted"
397 depends on PERMIT_BSP_REMOVE
400 Say Y if you need to force the assumption that CPEI can be re-targeted to
401 any cpu in the system. This hint is available via ACPI 3.0 specifications.
402 Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
403 This option it useful to enable this feature on older BIOS's as well.
404 You can also enable this by using boot command line option force_cpei=1.
406 source "kernel/Kconfig.preempt"
410 config ARCH_SELECT_MEMORY_MODEL
413 config ARCH_DISCONTIGMEM_ENABLE
416 Say Y to support efficient handling of discontiguous physical memory,
417 for architectures which are either NUMA (Non-Uniform Memory Access)
418 or have huge holes in the physical address space for other reasons.
419 See <file:Documentation/vm/numa> for more.
421 config ARCH_FLATMEM_ENABLE
424 config ARCH_SPARSEMEM_ENABLE
426 depends on ARCH_DISCONTIGMEM_ENABLE
427 select SPARSEMEM_VMEMMAP_ENABLE
429 config ARCH_DISCONTIGMEM_DEFAULT
430 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
431 depends on ARCH_DISCONTIGMEM_ENABLE
435 depends on !IA64_HP_SIM && !FLATMEM
436 default y if IA64_SGI_SN2
437 select ACPI_NUMA if ACPI
439 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
440 Access). This option is for configuring high-end multiprocessor
441 server systems. If in doubt, say N.
444 int "Max num nodes shift(3-10)"
447 depends on NEED_MULTIPLE_NODES
449 This option specifies the maximum number of nodes in your SSI system.
450 MAX_NUMNODES will be 2^(This value).
451 If in doubt, use the default.
453 # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
454 # VIRTUAL_MEM_MAP has been retained for historical reasons.
455 config VIRTUAL_MEM_MAP
456 bool "Virtual mem map"
457 depends on !SPARSEMEM
458 default y if !IA64_HP_SIM
460 Say Y to compile the kernel with support for a virtual mem map.
461 This code also only takes effect if a memory hole of greater than
462 1 Gb is found during boot. You must turn this option on if you
463 require the DISCONTIGMEM option for your machine. If you are
468 default y if VIRTUAL_MEM_MAP
470 config HAVE_ARCH_EARLY_PFN_TO_NID
471 def_bool NUMA && SPARSEMEM
473 config HAVE_ARCH_NODEDATA_EXTENSION
477 config USE_PERCPU_NUMA_NODE_ID
481 config HAVE_MEMORYLESS_NODES
484 config ARCH_PROC_KCORE_TEXT
486 depends on PROC_KCORE
488 config IA64_MCA_RECOVERY
489 tristate "MCA recovery from errors other than TLB."
492 bool "Performance monitor support"
494 Selects whether support for the IA-64 performance monitor hardware
495 is included in the kernel. This makes some kernel data-structures a
496 little bigger and slows down execution a bit, but it is generally
497 a good idea to turn this on. If you're unsure, say Y.
500 tristate "/proc/pal support"
502 If you say Y here, you are able to get PAL (Processor Abstraction
503 Layer) information in /proc/pal. This contains useful information
504 about the processors in your systems, such as cache and TLB sizes
505 and the PAL firmware version in use.
507 To use this option, you have to ensure that the "/proc file system
508 support" (CONFIG_PROC_FS) is enabled, too.
510 config IA64_MC_ERR_INJECT
511 tristate "MC error injection support"
513 Adds support for MC error injection. If enabled, the kernel
514 will provide a sysfs interface for user applications to
515 call MC error injection PAL procedures to inject various errors.
516 This is a useful tool for MCA testing.
518 If you're unsure, do not select this option.
521 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
524 bool "ESI (Extensible SAL Interface) support"
526 If you say Y here, support is built into the kernel to
527 make ESI calls. ESI calls are used to support vendor-specific
528 firmware extensions, such as the ability to inject memory-errors
529 for test-purposes. If you're unsure, say N.
531 config IA64_HP_AML_NFW
532 bool "Support ACPI AML calls to native firmware"
534 This driver installs a global ACPI Operation Region handler for
535 region 0xA1. AML methods can use this OpRegion to call arbitrary
536 native firmware functions. The driver installs the OpRegion
537 handler if there is an HPQ5001 device or if the user supplies
538 the "force" module parameter, e.g., with the "aml_nfw.force"
539 kernel command line option.
541 source "drivers/sn/Kconfig"
544 bool "kexec system call"
545 depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
547 kexec is a system call that implements the ability to shutdown your
548 current kernel, and to start another kernel. It is like a reboot
549 but it is independent of the system firmware. And like a reboot
550 you can start any kernel with it, not just Linux.
552 The name comes from the similarity to the exec system call.
554 It is an ongoing process to be certain the hardware in a machine
555 is properly shutdown, so do not be surprised if this code does not
556 initially work for you. As of this writing the exact hardware
557 interface is strongly in flux, so no good recommendation can be
561 bool "kernel crash dumps"
562 depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
564 Generate crash dump after being started by kexec.
566 source "drivers/firmware/Kconfig"
568 source "fs/Kconfig.binfmt"
572 menu "Power management and ACPI options"
574 source "kernel/power/Kconfig"
576 source "drivers/acpi/Kconfig"
579 menu "CPU Frequency scaling"
580 source "drivers/cpufreq/Kconfig"
588 menu "Bus options (PCI, PCMCIA)"
593 Real IA-64 machines all have PCI/PCI-X/PCI Express busses. Say Y
594 here unless you are using a simulator without PCI support.
602 source "drivers/pci/pcie/Kconfig"
604 source "drivers/pci/Kconfig"
606 source "drivers/pci/hotplug/Kconfig"
608 source "drivers/pcmcia/Kconfig"
616 source "drivers/Kconfig"
618 source "arch/ia64/hp/sim/Kconfig"
621 tristate "Memory special operations driver"
623 select IA64_UNCACHED_ALLOCATOR
625 If you have an ia64 and you want to enable memory special
626 operations support (formerly known as fetchop), say Y here,
631 source "arch/ia64/Kconfig.debug"
633 source "security/Kconfig"
635 source "crypto/Kconfig"
637 source "arch/ia64/kvm/Kconfig"
642 def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)