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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 HAVE_ARCH_TRACEHOOK
 25         select HAVE_DMA_API_DEBUG
 26         select HAVE_MEMBLOCK
 27         select HAVE_MEMBLOCK_NODE_MAP
 28         select HAVE_VIRT_CPU_ACCOUNTING
 29         select VIRT_TO_BUS
 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
 36         select GENERIC_IOMAP
 37         select GENERIC_SMP_IDLE_THREAD
 38         select ARCH_INIT_TASK
 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
 47         default y
 48         help
 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>.
 53 
 54 config 64BIT
 55         bool
 56         select ATA_NONSTANDARD if ATA
 57         default y
 58 
 59 config ZONE_DMA
 60         def_bool y
 61         depends on !IA64_SGI_SN2
 62 
 63 config QUICKLIST
 64         bool
 65         default y
 66 
 67 config MMU
 68         bool
 69         default y
 70 
 71 config ARCH_DMA_ADDR_T_64BIT
 72         def_bool y
 73 
 74 config NEED_DMA_MAP_STATE
 75         def_bool y
 76 
 77 config NEED_SG_DMA_LENGTH
 78         def_bool y
 79 
 80 config SWIOTLB
 81        bool
 82 
 83 config STACKTRACE_SUPPORT
 84         def_bool y
 85 
 86 config GENERIC_LOCKBREAK
 87         def_bool n
 88 
 89 config RWSEM_XCHGADD_ALGORITHM
 90         bool
 91         default y
 92 
 93 config HUGETLB_PAGE_SIZE_VARIABLE
 94         bool
 95         depends on HUGETLB_PAGE
 96         default y
 97 
 98 config GENERIC_CALIBRATE_DELAY
 99         bool
100         default y
101 
102 config HAVE_SETUP_PER_CPU_AREA
103         def_bool y
104 
105 config DMI
106         bool
107         default y
108         select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
109 
110 config EFI
111         bool
112         select UCS2_STRING
113         default y
114 
115 config SCHED_OMIT_FRAME_POINTER
116         bool
117         default y
118 
119 config IA64_UNCACHED_ALLOCATOR
120         bool
121         select GENERIC_ALLOCATOR
122 
123 config ARCH_USES_PG_UNCACHED
124         def_bool y
125         depends on IA64_UNCACHED_ALLOCATOR
126 
127 config AUDIT_ARCH
128         bool
129         default y
130 
131 menuconfig PARAVIRT_GUEST
132         bool "Paravirtualized guest support"
133         depends on BROKEN
134         help
135           Say Y here to get to see options related to running Linux under
136           various hypervisors.  This option alone does not add any kernel code.
137 
138           If you say N, all options in this submenu will be skipped and disabled.
139 
140 if PARAVIRT_GUEST
141 
142 config PARAVIRT
143         bool "Enable paravirtualization code"
144         depends on PARAVIRT_GUEST
145         default y
146         help
147           This changes the kernel so it can modify itself when it is run
148           under a hypervisor, potentially improving performance significantly
149           over full virtualization.  However, when run without a hypervisor
150           the kernel is theoretically slower and slightly larger.
151 
152 endif
153 
154 choice
155         prompt "System type"
156         default IA64_GENERIC
157 
158 config IA64_GENERIC
159         bool "generic"
160         select NUMA
161         select ACPI_NUMA
162         select SWIOTLB
163         select PCI_MSI
164         help
165           This selects the system type of your hardware.  A "generic" kernel
166           will run on any supported IA-64 system.  However, if you configure
167           a kernel for your specific system, it will be faster and smaller.
168 
169           generic               For any supported IA-64 system
170           DIG-compliant         For DIG ("Developer's Interface Guide") compliant systems
171           DIG+Intel+IOMMU       For DIG systems with Intel IOMMU
172           HP-zx1/sx1000         For HP systems
173           HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices.
174           SGI-SN2               For SGI Altix systems
175           SGI-UV                For SGI UV systems
176           Ski-simulator         For the HP simulator <http://www.hpl.hp.com/research/linux/ski/>
177 
178           If you don't know what to do, choose "generic".
179 
180 config IA64_DIG
181         bool "DIG-compliant"
182         select SWIOTLB
183 
184 config IA64_DIG_VTD
185         bool "DIG+Intel+IOMMU"
186         select INTEL_IOMMU
187         select PCI_MSI
188 
189 config IA64_HP_ZX1
190         bool "HP-zx1/sx1000"
191         help
192           Build a kernel that runs on HP zx1 and sx1000 systems.  This adds
193           support for the HP I/O MMU.
194 
195 config IA64_HP_ZX1_SWIOTLB
196         bool "HP-zx1/sx1000 with software I/O TLB"
197         select SWIOTLB
198         help
199           Build a kernel that runs on HP zx1 and sx1000 systems even when they
200           have broken PCI devices which cannot DMA to full 32 bits.  Apart
201           from support for the HP I/O MMU, this includes support for the software
202           I/O TLB, which allows supporting the broken devices at the expense of
203           wasting some kernel memory (about 2MB by default).
204 
205 config IA64_SGI_SN2
206         bool "SGI-SN2"
207         select NUMA
208         select ACPI_NUMA
209         help
210           Selecting this option will optimize the kernel for use on sn2 based
211           systems, but the resulting kernel binary will not run on other
212           types of ia64 systems.  If you have an SGI Altix system, it's safe
213           to select this option.  If in doubt, select ia64 generic support
214           instead.
215 
216 config IA64_SGI_UV
217         bool "SGI-UV"
218         select NUMA
219         select ACPI_NUMA
220         select SWIOTLB
221         help
222           Selecting this option will optimize the kernel for use on UV based
223           systems, but the resulting kernel binary will not run on other
224           types of ia64 systems.  If you have an SGI UV system, it's safe
225           to select this option.  If in doubt, select ia64 generic support
226           instead.
227 
228 config IA64_HP_SIM
229         bool "Ski-simulator"
230         select SWIOTLB
231 
232 endchoice
233 
234 choice
235         prompt "Processor type"
236         default ITANIUM
237 
238 config ITANIUM
239         bool "Itanium"
240         help
241           Select your IA-64 processor type.  The default is Itanium.
242           This choice is safe for all IA-64 systems, but may not perform
243           optimally on systems with, say, Itanium 2 or newer processors.
244 
245 config MCKINLEY
246         bool "Itanium 2"
247         help
248           Select this to configure for an Itanium 2 (McKinley) processor.
249 
250 endchoice
251 
252 choice
253         prompt "Kernel page size"
254         default IA64_PAGE_SIZE_16KB
255 
256 config IA64_PAGE_SIZE_4KB
257         bool "4KB"
258         help
259           This lets you select the page size of the kernel.  For best IA-64
260           performance, a page size of 8KB or 16KB is recommended.  For best
261           IA-32 compatibility, a page size of 4KB should be selected (the vast
262           majority of IA-32 binaries work perfectly fine with a larger page
263           size).  For Itanium 2 or newer systems, a page size of 64KB can also
264           be selected.
265 
266           4KB                For best IA-32 compatibility
267           8KB                For best IA-64 performance
268           16KB               For best IA-64 performance
269           64KB               Requires Itanium 2 or newer processor.
270 
271           If you don't know what to do, choose 16KB.
272 
273 config IA64_PAGE_SIZE_8KB
274         bool "8KB"
275 
276 config IA64_PAGE_SIZE_16KB
277         bool "16KB"
278 
279 config IA64_PAGE_SIZE_64KB
280         depends on !ITANIUM
281         bool "64KB"
282 
283 endchoice
284 
285 choice
286         prompt "Page Table Levels"
287         default PGTABLE_3
288 
289 config PGTABLE_3
290         bool "3 Levels"
291 
292 config PGTABLE_4
293         depends on !IA64_PAGE_SIZE_64KB
294         bool "4 Levels"
295 
296 endchoice
297 
298 if IA64_HP_SIM
299 config HZ
300         default 32
301 endif
302 
303 if !IA64_HP_SIM
304 source kernel/Kconfig.hz
305 endif
306 
307 config IA64_BRL_EMU
308         bool
309         depends on ITANIUM
310         default y
311 
312 # align cache-sensitive data to 128 bytes
313 config IA64_L1_CACHE_SHIFT
314         int
315         default "7" if MCKINLEY
316         default "6" if ITANIUM
317 
318 config IA64_CYCLONE
319         bool "Cyclone (EXA) Time Source support"
320         help
321           Say Y here to enable support for IBM EXA Cyclone time source.
322           If you're unsure, answer N.
323 
324 config IOSAPIC
325         bool
326         depends on !IA64_HP_SIM
327         default y
328 
329 config FORCE_MAX_ZONEORDER
330         int "MAX_ORDER (11 - 17)"  if !HUGETLB_PAGE
331         range 11 17  if !HUGETLB_PAGE
332         default "17" if HUGETLB_PAGE
333         default "11"
334 
335 config SMP
336         bool "Symmetric multi-processing support"
337         help
338           This enables support for systems with more than one CPU. If you have
339           a system with only one CPU, say N.  If you have a system with more
340           than one CPU, say Y.
341 
342           If you say N here, the kernel will run on single and multiprocessor
343           systems, but will use only one CPU of a multiprocessor system.  If
344           you say Y here, the kernel will run on many, but not all,
345           single processor systems.  On a single processor system, the kernel
346           will run faster if you say N here.
347 
348           See also the SMP-HOWTO available at
349           <http://www.tldp.org/docs.html#howto>.
350 
351           If you don't know what to do here, say N.
352 
353 config NR_CPUS
354         int "Maximum number of CPUs (2-4096)"
355         range 2 4096
356         depends on SMP
357         default "4096"
358         help
359           You should set this to the number of CPUs in your system, but
360           keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
361           only use 2 CPUs on a >2 CPU system.  Setting this to a value larger
362           than 64 will cause the use of a CPU mask array, causing a small
363           performance hit.
364 
365 config HOTPLUG_CPU
366         bool "Support for hot-pluggable CPUs"
367         depends on SMP
368         default n
369         ---help---
370           Say Y here to experiment with turning CPUs off and on.  CPUs
371           can be controlled through /sys/devices/system/cpu/cpu#.
372           Say N if you want to disable CPU hotplug.
373 
374 config ARCH_ENABLE_MEMORY_HOTPLUG
375         def_bool y
376 
377 config ARCH_ENABLE_MEMORY_HOTREMOVE
378         def_bool y
379 
380 config SCHED_SMT
381         bool "SMT scheduler support"
382         depends on SMP
383         help
384           Improves the CPU scheduler's decision making when dealing with
385           Intel IA64 chips with MultiThreading at a cost of slightly increased
386           overhead in some places. If unsure say N here.
387 
388 config PERMIT_BSP_REMOVE
389         bool "Support removal of Bootstrap Processor"
390         depends on HOTPLUG_CPU
391         default n
392         ---help---
393         Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
394         support. 
395 
396 config FORCE_CPEI_RETARGET
397         bool "Force assumption that CPEI can be re-targeted"
398         depends on PERMIT_BSP_REMOVE
399         default n
400         ---help---
401         Say Y if you need to force the assumption that CPEI can be re-targeted to
402         any cpu in the system. This hint is available via ACPI 3.0 specifications.
403         Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
404         This option it useful to enable this feature on older BIOS's as well.
405         You can also enable this by using boot command line option force_cpei=1.
406 
407 source "kernel/Kconfig.preempt"
408 
409 source "mm/Kconfig"
410 
411 config ARCH_SELECT_MEMORY_MODEL
412         def_bool y
413 
414 config ARCH_DISCONTIGMEM_ENABLE
415         def_bool y
416         help
417           Say Y to support efficient handling of discontiguous physical memory,
418           for architectures which are either NUMA (Non-Uniform Memory Access)
419           or have huge holes in the physical address space for other reasons.
420           See <file:Documentation/vm/numa> for more.
421 
422 config ARCH_FLATMEM_ENABLE
423         def_bool y
424 
425 config ARCH_SPARSEMEM_ENABLE
426         def_bool y
427         depends on ARCH_DISCONTIGMEM_ENABLE
428         select SPARSEMEM_VMEMMAP_ENABLE
429 
430 config ARCH_DISCONTIGMEM_DEFAULT
431         def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
432         depends on ARCH_DISCONTIGMEM_ENABLE
433 
434 config NUMA
435         bool "NUMA support"
436         depends on !IA64_HP_SIM && !FLATMEM
437         default y if IA64_SGI_SN2
438         select ACPI_NUMA if ACPI
439         help
440           Say Y to compile the kernel to support NUMA (Non-Uniform Memory
441           Access).  This option is for configuring high-end multiprocessor
442           server systems.  If in doubt, say N.
443 
444 config NODES_SHIFT
445         int "Max num nodes shift(3-10)"
446         range 3 10
447         default "10"
448         depends on NEED_MULTIPLE_NODES
449         help
450           This option specifies the maximum number of nodes in your SSI system.
451           MAX_NUMNODES will be 2^(This value).
452           If in doubt, use the default.
453 
454 # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
455 # VIRTUAL_MEM_MAP has been retained for historical reasons.
456 config VIRTUAL_MEM_MAP
457         bool "Virtual mem map"
458         depends on !SPARSEMEM
459         default y if !IA64_HP_SIM
460         help
461           Say Y to compile the kernel with support for a virtual mem map.
462           This code also only takes effect if a memory hole of greater than
463           1 Gb is found during boot.  You must turn this option on if you
464           require the DISCONTIGMEM option for your machine. If you are
465           unsure, say Y.
466 
467 config HOLES_IN_ZONE
468         bool
469         default y if VIRTUAL_MEM_MAP
470 
471 config HAVE_ARCH_EARLY_PFN_TO_NID
472         def_bool NUMA && SPARSEMEM
473 
474 config HAVE_ARCH_NODEDATA_EXTENSION
475         def_bool y
476         depends on NUMA
477 
478 config USE_PERCPU_NUMA_NODE_ID
479         def_bool y
480         depends on NUMA
481 
482 config HAVE_MEMORYLESS_NODES
483         def_bool NUMA
484 
485 config ARCH_PROC_KCORE_TEXT
486         def_bool y
487         depends on PROC_KCORE
488 
489 config IA64_MCA_RECOVERY
490         tristate "MCA recovery from errors other than TLB."
491 
492 config PERFMON
493         bool "Performance monitor support"
494         help
495           Selects whether support for the IA-64 performance monitor hardware
496           is included in the kernel.  This makes some kernel data-structures a
497           little bigger and slows down execution a bit, but it is generally
498           a good idea to turn this on.  If you're unsure, say Y.
499 
500 config IA64_PALINFO
501         tristate "/proc/pal support"
502         help
503           If you say Y here, you are able to get PAL (Processor Abstraction
504           Layer) information in /proc/pal.  This contains useful information
505           about the processors in your systems, such as cache and TLB sizes
506           and the PAL firmware version in use.
507 
508           To use this option, you have to ensure that the "/proc file system
509           support" (CONFIG_PROC_FS) is enabled, too.
510 
511 config IA64_MC_ERR_INJECT
512         tristate "MC error injection support"
513         help
514           Adds support for MC error injection. If enabled, the kernel 
515           will provide a sysfs interface for user applications to
516           call MC error injection PAL procedures to inject various errors.
517           This is a useful tool for MCA testing.
518 
519           If you're unsure, do not select this option.
520 
521 config SGI_SN
522         def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
523 
524 config IA64_ESI
525         bool "ESI (Extensible SAL Interface) support"
526         help
527           If you say Y here, support is built into the kernel to
528           make ESI calls.  ESI calls are used to support vendor-specific
529           firmware extensions, such as the ability to inject memory-errors
530           for test-purposes.  If you're unsure, say N.
531 
532 config IA64_HP_AML_NFW
533         bool "Support ACPI AML calls to native firmware"
534         help
535           This driver installs a global ACPI Operation Region handler for
536           region 0xA1.  AML methods can use this OpRegion to call arbitrary
537           native firmware functions.  The driver installs the OpRegion
538           handler if there is an HPQ5001 device or if the user supplies
539           the "force" module parameter, e.g., with the "aml_nfw.force"
540           kernel command line option.
541 
542 source "drivers/sn/Kconfig"
543 
544 config KEXEC
545         bool "kexec system call"
546         depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
547         help
548           kexec is a system call that implements the ability to shutdown your
549           current kernel, and to start another kernel.  It is like a reboot
550           but it is independent of the system firmware.   And like a reboot
551           you can start any kernel with it, not just Linux.
552 
553           The name comes from the similarity to the exec system call.
554 
555           It is an ongoing process to be certain the hardware in a machine
556           is properly shutdown, so do not be surprised if this code does not
557           initially work for you.  As of this writing the exact hardware
558           interface is strongly in flux, so no good recommendation can be
559           made.
560 
561 config CRASH_DUMP
562           bool "kernel crash dumps"
563           depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
564           help
565             Generate crash dump after being started by kexec.
566 
567 source "drivers/firmware/Kconfig"
568 
569 source "fs/Kconfig.binfmt"
570 
571 endmenu
572 
573 menu "Power management and ACPI options"
574 
575 source "kernel/power/Kconfig"
576 
577 source "drivers/acpi/Kconfig"
578 
579 if PM
580 menu "CPU Frequency scaling"
581 source "drivers/cpufreq/Kconfig"
582 endmenu
583 endif
584 
585 endmenu
586 
587 if !IA64_HP_SIM
588 
589 menu "Bus options (PCI, PCMCIA)"
590 
591 config PCI
592         bool "PCI support"
593         help
594           Real IA-64 machines all have PCI/PCI-X/PCI Express busses.  Say Y
595           here unless you are using a simulator without PCI support.
596 
597 config PCI_DOMAINS
598         def_bool PCI
599 
600 config PCI_SYSCALL
601         def_bool PCI
602 
603 source "drivers/pci/pcie/Kconfig"
604 
605 source "drivers/pci/Kconfig"
606 
607 source "drivers/pci/hotplug/Kconfig"
608 
609 source "drivers/pcmcia/Kconfig"
610 
611 endmenu
612 
613 endif
614 
615 source "net/Kconfig"
616 
617 source "drivers/Kconfig"
618 
619 source "arch/ia64/hp/sim/Kconfig"
620 
621 config MSPEC
622         tristate "Memory special operations driver"
623         depends on IA64
624         select IA64_UNCACHED_ALLOCATOR
625         help
626           If you have an ia64 and you want to enable memory special
627           operations support (formerly known as fetchop), say Y here,
628           otherwise say N.
629 
630 source "fs/Kconfig"
631 
632 source "arch/ia64/Kconfig.debug"
633 
634 source "security/Kconfig"
635 
636 source "crypto/Kconfig"
637 
638 source "arch/ia64/kvm/Kconfig"
639 
640 source "lib/Kconfig"
641 
642 config IOMMU_HELPER
643         def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)

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