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Linux/arch/ia64/Kconfig

  1 source "init/Kconfig"
  2 
  3 source "kernel/Kconfig.freezer"
  4 
  5 menu "Processor type and features"
  6 
  7 config IA64
  8         bool
  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
 15         select HAVE_IDE
 16         select HAVE_OPROFILE
 17         select HAVE_KPROBES
 18         select HAVE_KRETPROBES
 19         select HAVE_FTRACE_MCOUNT_RECORD
 20         select HAVE_DYNAMIC_FTRACE if (!ITANIUM)
 21         select HAVE_FUNCTION_TRACER
 22         select HAVE_DMA_ATTRS
 23         select HAVE_KVM
 24         select TTY
 25         select HAVE_ARCH_TRACEHOOK
 26         select HAVE_DMA_API_DEBUG
 27         select HAVE_MEMBLOCK
 28         select HAVE_MEMBLOCK_NODE_MAP
 29         select HAVE_VIRT_CPU_ACCOUNTING
 30         select VIRT_TO_BUS
 31         select ARCH_DISCARD_MEMBLOCK
 32         select GENERIC_IRQ_PROBE
 33         select GENERIC_PENDING_IRQ if SMP
 34         select GENERIC_IRQ_SHOW
 35         select ARCH_WANT_OPTIONAL_GPIOLIB
 36         select ARCH_HAVE_NMI_SAFE_CMPXCHG
 37         select GENERIC_IOMAP
 38         select GENERIC_SMP_IDLE_THREAD
 39         select ARCH_INIT_TASK
 40         select ARCH_TASK_STRUCT_ALLOCATOR
 41         select ARCH_THREAD_INFO_ALLOCATOR
 42         select ARCH_CLOCKSOURCE_DATA
 43         select GENERIC_TIME_VSYSCALL_OLD
 44         select SYSCTL_ARCH_UNALIGN_NO_WARN
 45         select HAVE_MOD_ARCH_SPECIFIC
 46         select MODULES_USE_ELF_RELA
 47         select ARCH_USE_CMPXCHG_LOCKREF
 48         select HAVE_ARCH_AUDITSYSCALL
 49         default y
 50         help
 51           The Itanium Processor Family is Intel's 64-bit successor to
 52           the 32-bit X86 line.  The IA-64 Linux project has a home
 53           page at <http://www.linuxia64.org/> and a mailing list at
 54           <linux-ia64@vger.kernel.org>.
 55 
 56 config 64BIT
 57         bool
 58         select ATA_NONSTANDARD if ATA
 59         default y
 60 
 61 config ZONE_DMA
 62         def_bool y
 63         depends on !IA64_SGI_SN2
 64 
 65 config QUICKLIST
 66         bool
 67         default y
 68 
 69 config MMU
 70         bool
 71         default y
 72 
 73 config ARCH_DMA_ADDR_T_64BIT
 74         def_bool y
 75 
 76 config NEED_DMA_MAP_STATE
 77         def_bool y
 78 
 79 config NEED_SG_DMA_LENGTH
 80         def_bool y
 81 
 82 config SWIOTLB
 83        bool
 84 
 85 config STACKTRACE_SUPPORT
 86         def_bool y
 87 
 88 config GENERIC_LOCKBREAK
 89         def_bool n
 90 
 91 config RWSEM_XCHGADD_ALGORITHM
 92         bool
 93         default y
 94 
 95 config HUGETLB_PAGE_SIZE_VARIABLE
 96         bool
 97         depends on HUGETLB_PAGE
 98         default y
 99 
100 config GENERIC_CALIBRATE_DELAY
101         bool
102         default y
103 
104 config HAVE_SETUP_PER_CPU_AREA
105         def_bool y
106 
107 config DMI
108         bool
109         default y
110         select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
111 
112 config EFI
113         bool
114         select UCS2_STRING
115         default y
116 
117 config SCHED_OMIT_FRAME_POINTER
118         bool
119         default y
120 
121 config IA64_UNCACHED_ALLOCATOR
122         bool
123         select GENERIC_ALLOCATOR
124 
125 config ARCH_USES_PG_UNCACHED
126         def_bool y
127         depends on IA64_UNCACHED_ALLOCATOR
128 
129 config AUDIT_ARCH
130         bool
131         default y
132 
133 menuconfig PARAVIRT_GUEST
134         bool "Paravirtualized guest support"
135         depends on BROKEN
136         help
137           Say Y here to get to see options related to running Linux under
138           various hypervisors.  This option alone does not add any kernel code.
139 
140           If you say N, all options in this submenu will be skipped and disabled.
141 
142 if PARAVIRT_GUEST
143 
144 config PARAVIRT
145         bool "Enable paravirtualization code"
146         depends on PARAVIRT_GUEST
147         default y
148         help
149           This changes the kernel so it can modify itself when it is run
150           under a hypervisor, potentially improving performance significantly
151           over full virtualization.  However, when run without a hypervisor
152           the kernel is theoretically slower and slightly larger.
153 
154 endif
155 
156 choice
157         prompt "System type"
158         default IA64_GENERIC
159 
160 config IA64_GENERIC
161         bool "generic"
162         select NUMA
163         select ACPI_NUMA
164         select SWIOTLB
165         select PCI_MSI
166         help
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.
170 
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 
180           If you don't know what to do, choose "generic".
181 
182 config IA64_DIG
183         bool "DIG-compliant"
184         select SWIOTLB
185 
186 config IA64_DIG_VTD
187         bool "DIG+Intel+IOMMU"
188         select INTEL_IOMMU
189         select PCI_MSI
190 
191 config IA64_HP_ZX1
192         bool "HP-zx1/sx1000"
193         help
194           Build a kernel that runs on HP zx1 and sx1000 systems.  This adds
195           support for the HP I/O MMU.
196 
197 config IA64_HP_ZX1_SWIOTLB
198         bool "HP-zx1/sx1000 with software I/O TLB"
199         select SWIOTLB
200         help
201           Build a kernel that runs on HP zx1 and sx1000 systems even when they
202           have broken PCI devices which cannot DMA to full 32 bits.  Apart
203           from support for the HP I/O MMU, this includes support for the software
204           I/O TLB, which allows supporting the broken devices at the expense of
205           wasting some kernel memory (about 2MB by default).
206 
207 config IA64_SGI_SN2
208         bool "SGI-SN2"
209         select NUMA
210         select ACPI_NUMA
211         help
212           Selecting this option will optimize the kernel for use on sn2 based
213           systems, but the resulting kernel binary will not run on other
214           types of ia64 systems.  If you have an SGI Altix system, it's safe
215           to select this option.  If in doubt, select ia64 generic support
216           instead.
217 
218 config IA64_SGI_UV
219         bool "SGI-UV"
220         select NUMA
221         select ACPI_NUMA
222         select SWIOTLB
223         help
224           Selecting this option will optimize the kernel for use on UV based
225           systems, but the resulting kernel binary will not run on other
226           types of ia64 systems.  If you have an SGI UV system, it's safe
227           to select this option.  If in doubt, select ia64 generic support
228           instead.
229 
230 config IA64_HP_SIM
231         bool "Ski-simulator"
232         select SWIOTLB
233 
234 endchoice
235 
236 choice
237         prompt "Processor type"
238         default ITANIUM
239 
240 config ITANIUM
241         bool "Itanium"
242         help
243           Select your IA-64 processor type.  The default is Itanium.
244           This choice is safe for all IA-64 systems, but may not perform
245           optimally on systems with, say, Itanium 2 or newer processors.
246 
247 config MCKINLEY
248         bool "Itanium 2"
249         help
250           Select this to configure for an Itanium 2 (McKinley) processor.
251 
252 endchoice
253 
254 choice
255         prompt "Kernel page size"
256         default IA64_PAGE_SIZE_16KB
257 
258 config IA64_PAGE_SIZE_4KB
259         bool "4KB"
260         help
261           This lets you select the page size of the kernel.  For best IA-64
262           performance, a page size of 8KB or 16KB is recommended.  For best
263           IA-32 compatibility, a page size of 4KB should be selected (the vast
264           majority of IA-32 binaries work perfectly fine with a larger page
265           size).  For Itanium 2 or newer systems, a page size of 64KB can also
266           be selected.
267 
268           4KB                For best IA-32 compatibility
269           8KB                For best IA-64 performance
270           16KB               For best IA-64 performance
271           64KB               Requires Itanium 2 or newer processor.
272 
273           If you don't know what to do, choose 16KB.
274 
275 config IA64_PAGE_SIZE_8KB
276         bool "8KB"
277 
278 config IA64_PAGE_SIZE_16KB
279         bool "16KB"
280 
281 config IA64_PAGE_SIZE_64KB
282         depends on !ITANIUM
283         bool "64KB"
284 
285 endchoice
286 
287 choice
288         prompt "Page Table Levels"
289         default PGTABLE_3
290 
291 config PGTABLE_3
292         bool "3 Levels"
293 
294 config PGTABLE_4
295         depends on !IA64_PAGE_SIZE_64KB
296         bool "4 Levels"
297 
298 endchoice
299 
300 if IA64_HP_SIM
301 config HZ
302         default 32
303 endif
304 
305 if !IA64_HP_SIM
306 source kernel/Kconfig.hz
307 endif
308 
309 config IA64_BRL_EMU
310         bool
311         depends on ITANIUM
312         default y
313 
314 # align cache-sensitive data to 128 bytes
315 config IA64_L1_CACHE_SHIFT
316         int
317         default "7" if MCKINLEY
318         default "6" if ITANIUM
319 
320 config IA64_CYCLONE
321         bool "Cyclone (EXA) Time Source support"
322         help
323           Say Y here to enable support for IBM EXA Cyclone time source.
324           If you're unsure, answer N.
325 
326 config IOSAPIC
327         bool
328         depends on !IA64_HP_SIM
329         default y
330 
331 config FORCE_MAX_ZONEORDER
332         int "MAX_ORDER (11 - 17)"  if !HUGETLB_PAGE
333         range 11 17  if !HUGETLB_PAGE
334         default "17" if HUGETLB_PAGE
335         default "11"
336 
337 config SMP
338         bool "Symmetric multi-processing support"
339         help
340           This enables support for systems with more than one CPU. If you have
341           a system with only one CPU, say N.  If you have a system with more
342           than one CPU, say Y.
343 
344           If you say N here, the kernel will run on single and multiprocessor
345           systems, but will use only one CPU of a multiprocessor system.  If
346           you say Y here, the kernel will run on many, but not all,
347           single processor systems.  On a single processor system, the kernel
348           will run faster if you say N here.
349 
350           See also the SMP-HOWTO available at
351           <http://www.tldp.org/docs.html#howto>.
352 
353           If you don't know what to do here, say N.
354 
355 config NR_CPUS
356         int "Maximum number of CPUs (2-4096)"
357         range 2 4096
358         depends on SMP
359         default "4096"
360         help
361           You should set this to the number of CPUs in your system, but
362           keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
363           only use 2 CPUs on a >2 CPU system.  Setting this to a value larger
364           than 64 will cause the use of a CPU mask array, causing a small
365           performance hit.
366 
367 config HOTPLUG_CPU
368         bool "Support for hot-pluggable CPUs"
369         depends on SMP
370         default n
371         ---help---
372           Say Y here to experiment with turning CPUs off and on.  CPUs
373           can be controlled through /sys/devices/system/cpu/cpu#.
374           Say N if you want to disable CPU hotplug.
375 
376 config ARCH_ENABLE_MEMORY_HOTPLUG
377         def_bool y
378 
379 config ARCH_ENABLE_MEMORY_HOTREMOVE
380         def_bool y
381 
382 config SCHED_SMT
383         bool "SMT scheduler support"
384         depends on SMP
385         help
386           Improves the CPU scheduler's decision making when dealing with
387           Intel IA64 chips with MultiThreading at a cost of slightly increased
388           overhead in some places. If unsure say N here.
389 
390 config PERMIT_BSP_REMOVE
391         bool "Support removal of Bootstrap Processor"
392         depends on HOTPLUG_CPU
393         default n
394         ---help---
395         Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
396         support. 
397 
398 config FORCE_CPEI_RETARGET
399         bool "Force assumption that CPEI can be re-targeted"
400         depends on PERMIT_BSP_REMOVE
401         default n
402         ---help---
403         Say Y if you need to force the assumption that CPEI can be re-targeted to
404         any cpu in the system. This hint is available via ACPI 3.0 specifications.
405         Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
406         This option it useful to enable this feature on older BIOS's as well.
407         You can also enable this by using boot command line option force_cpei=1.
408 
409 source "kernel/Kconfig.preempt"
410 
411 source "mm/Kconfig"
412 
413 config ARCH_SELECT_MEMORY_MODEL
414         def_bool y
415 
416 config ARCH_DISCONTIGMEM_ENABLE
417         def_bool y
418         help
419           Say Y to support efficient handling of discontiguous physical memory,
420           for architectures which are either NUMA (Non-Uniform Memory Access)
421           or have huge holes in the physical address space for other reasons.
422           See <file:Documentation/vm/numa> for more.
423 
424 config ARCH_FLATMEM_ENABLE
425         def_bool y
426 
427 config ARCH_SPARSEMEM_ENABLE
428         def_bool y
429         depends on ARCH_DISCONTIGMEM_ENABLE
430         select SPARSEMEM_VMEMMAP_ENABLE
431 
432 config ARCH_DISCONTIGMEM_DEFAULT
433         def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
434         depends on ARCH_DISCONTIGMEM_ENABLE
435 
436 config NUMA
437         bool "NUMA support"
438         depends on !IA64_HP_SIM && !FLATMEM
439         default y if IA64_SGI_SN2
440         select ACPI_NUMA if ACPI
441         help
442           Say Y to compile the kernel to support NUMA (Non-Uniform Memory
443           Access).  This option is for configuring high-end multiprocessor
444           server systems.  If in doubt, say N.
445 
446 config NODES_SHIFT
447         int "Max num nodes shift(3-10)"
448         range 3 10
449         default "10"
450         depends on NEED_MULTIPLE_NODES
451         help
452           This option specifies the maximum number of nodes in your SSI system.
453           MAX_NUMNODES will be 2^(This value).
454           If in doubt, use the default.
455 
456 # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
457 # VIRTUAL_MEM_MAP has been retained for historical reasons.
458 config VIRTUAL_MEM_MAP
459         bool "Virtual mem map"
460         depends on !SPARSEMEM
461         default y if !IA64_HP_SIM
462         help
463           Say Y to compile the kernel with support for a virtual mem map.
464           This code also only takes effect if a memory hole of greater than
465           1 Gb is found during boot.  You must turn this option on if you
466           require the DISCONTIGMEM option for your machine. If you are
467           unsure, say Y.
468 
469 config HOLES_IN_ZONE
470         bool
471         default y if VIRTUAL_MEM_MAP
472 
473 config HAVE_ARCH_EARLY_PFN_TO_NID
474         def_bool NUMA && SPARSEMEM
475 
476 config HAVE_ARCH_NODEDATA_EXTENSION
477         def_bool y
478         depends on NUMA
479 
480 config USE_PERCPU_NUMA_NODE_ID
481         def_bool y
482         depends on NUMA
483 
484 config HAVE_MEMORYLESS_NODES
485         def_bool NUMA
486 
487 config ARCH_PROC_KCORE_TEXT
488         def_bool y
489         depends on PROC_KCORE
490 
491 config IA64_MCA_RECOVERY
492         tristate "MCA recovery from errors other than TLB."
493 
494 config PERFMON
495         bool "Performance monitor support"
496         help
497           Selects whether support for the IA-64 performance monitor hardware
498           is included in the kernel.  This makes some kernel data-structures a
499           little bigger and slows down execution a bit, but it is generally
500           a good idea to turn this on.  If you're unsure, say Y.
501 
502 config IA64_PALINFO
503         tristate "/proc/pal support"
504         help
505           If you say Y here, you are able to get PAL (Processor Abstraction
506           Layer) information in /proc/pal.  This contains useful information
507           about the processors in your systems, such as cache and TLB sizes
508           and the PAL firmware version in use.
509 
510           To use this option, you have to ensure that the "/proc file system
511           support" (CONFIG_PROC_FS) is enabled, too.
512 
513 config IA64_MC_ERR_INJECT
514         tristate "MC error injection support"
515         help
516           Adds support for MC error injection. If enabled, the kernel 
517           will provide a sysfs interface for user applications to
518           call MC error injection PAL procedures to inject various errors.
519           This is a useful tool for MCA testing.
520 
521           If you're unsure, do not select this option.
522 
523 config SGI_SN
524         def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
525 
526 config IA64_ESI
527         bool "ESI (Extensible SAL Interface) support"
528         help
529           If you say Y here, support is built into the kernel to
530           make ESI calls.  ESI calls are used to support vendor-specific
531           firmware extensions, such as the ability to inject memory-errors
532           for test-purposes.  If you're unsure, say N.
533 
534 config IA64_HP_AML_NFW
535         bool "Support ACPI AML calls to native firmware"
536         help
537           This driver installs a global ACPI Operation Region handler for
538           region 0xA1.  AML methods can use this OpRegion to call arbitrary
539           native firmware functions.  The driver installs the OpRegion
540           handler if there is an HPQ5001 device or if the user supplies
541           the "force" module parameter, e.g., with the "aml_nfw.force"
542           kernel command line option.
543 
544 source "drivers/sn/Kconfig"
545 
546 config KEXEC
547         bool "kexec system call"
548         depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
549         help
550           kexec is a system call that implements the ability to shutdown your
551           current kernel, and to start another kernel.  It is like a reboot
552           but it is independent of the system firmware.   And like a reboot
553           you can start any kernel with it, not just Linux.
554 
555           The name comes from the similarity to the exec system call.
556 
557           It is an ongoing process to be certain the hardware in a machine
558           is properly shutdown, so do not be surprised if this code does not
559           initially work for you.  As of this writing the exact hardware
560           interface is strongly in flux, so no good recommendation can be
561           made.
562 
563 config CRASH_DUMP
564           bool "kernel crash dumps"
565           depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
566           help
567             Generate crash dump after being started by kexec.
568 
569 source "drivers/firmware/Kconfig"
570 
571 source "fs/Kconfig.binfmt"
572 
573 endmenu
574 
575 menu "Power management and ACPI options"
576 
577 source "kernel/power/Kconfig"
578 
579 source "drivers/acpi/Kconfig"
580 
581 if PM
582 menu "CPU Frequency scaling"
583 source "drivers/cpufreq/Kconfig"
584 endmenu
585 endif
586 
587 endmenu
588 
589 if !IA64_HP_SIM
590 
591 menu "Bus options (PCI, PCMCIA)"
592 
593 config PCI
594         bool "PCI support"
595         help
596           Real IA-64 machines all have PCI/PCI-X/PCI Express busses.  Say Y
597           here unless you are using a simulator without PCI support.
598 
599 config PCI_DOMAINS
600         def_bool PCI
601 
602 config PCI_SYSCALL
603         def_bool PCI
604 
605 source "drivers/pci/pcie/Kconfig"
606 
607 source "drivers/pci/Kconfig"
608 
609 source "drivers/pci/hotplug/Kconfig"
610 
611 source "drivers/pcmcia/Kconfig"
612 
613 endmenu
614 
615 endif
616 
617 source "net/Kconfig"
618 
619 source "drivers/Kconfig"
620 
621 source "arch/ia64/hp/sim/Kconfig"
622 
623 config MSPEC
624         tristate "Memory special operations driver"
625         depends on IA64
626         select IA64_UNCACHED_ALLOCATOR
627         help
628           If you have an ia64 and you want to enable memory special
629           operations support (formerly known as fetchop), say Y here,
630           otherwise say N.
631 
632 source "fs/Kconfig"
633 
634 source "arch/ia64/Kconfig.debug"
635 
636 source "security/Kconfig"
637 
638 source "crypto/Kconfig"
639 
640 source "arch/ia64/kvm/Kconfig"
641 
642 source "lib/Kconfig"
643 
644 config IOMMU_HELPER
645         def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)

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