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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 ARCH_MIGHT_HAVE_ACPI_PDC if ACPI
 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 TTY
 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 ARCH_HAS_SG_CHAIN
 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 GENERIC_IRQ_LEGACY
 36         select ARCH_WANT_OPTIONAL_GPIOLIB
 37         select ARCH_HAVE_NMI_SAFE_CMPXCHG
 38         select GENERIC_IOMAP
 39         select GENERIC_SMP_IDLE_THREAD
 40         select ARCH_INIT_TASK
 41         select ARCH_TASK_STRUCT_ALLOCATOR
 42         select ARCH_THREAD_INFO_ALLOCATOR
 43         select ARCH_CLOCKSOURCE_DATA
 44         select GENERIC_TIME_VSYSCALL_OLD
 45         select SYSCTL_ARCH_UNALIGN_NO_WARN
 46         select HAVE_MOD_ARCH_SPECIFIC
 47         select MODULES_USE_ELF_RELA
 48         select ARCH_USE_CMPXCHG_LOCKREF
 49         select HAVE_ARCH_AUDITSYSCALL
 50         default y
 51         help
 52           The Itanium Processor Family is Intel's 64-bit successor to
 53           the 32-bit X86 line.  The IA-64 Linux project has a home
 54           page at <http://www.linuxia64.org/> and a mailing list at
 55           <linux-ia64@vger.kernel.org>.
 56 
 57 config 64BIT
 58         bool
 59         select ATA_NONSTANDARD if ATA
 60         default y
 61 
 62 config ZONE_DMA
 63         def_bool y
 64         depends on !IA64_SGI_SN2
 65 
 66 config QUICKLIST
 67         bool
 68         default y
 69 
 70 config MMU
 71         bool
 72         default y
 73 
 74 config ARCH_DMA_ADDR_T_64BIT
 75         def_bool y
 76 
 77 config NEED_DMA_MAP_STATE
 78         def_bool y
 79 
 80 config NEED_SG_DMA_LENGTH
 81         def_bool y
 82 
 83 config SWIOTLB
 84        bool
 85 
 86 config STACKTRACE_SUPPORT
 87         def_bool y
 88 
 89 config GENERIC_LOCKBREAK
 90         def_bool n
 91 
 92 config RWSEM_XCHGADD_ALGORITHM
 93         bool
 94         default y
 95 
 96 config HUGETLB_PAGE_SIZE_VARIABLE
 97         bool
 98         depends on HUGETLB_PAGE
 99         default y
100 
101 config GENERIC_CALIBRATE_DELAY
102         bool
103         default y
104 
105 config HAVE_SETUP_PER_CPU_AREA
106         def_bool y
107 
108 config DMI
109         bool
110         default y
111         select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
112 
113 config EFI
114         bool
115         select UCS2_STRING
116         default y
117 
118 config SCHED_OMIT_FRAME_POINTER
119         bool
120         default y
121 
122 config IA64_UNCACHED_ALLOCATOR
123         bool
124         select GENERIC_ALLOCATOR
125 
126 config ARCH_USES_PG_UNCACHED
127         def_bool y
128         depends on IA64_UNCACHED_ALLOCATOR
129 
130 config AUDIT_ARCH
131         bool
132         default y
133 
134 menuconfig PARAVIRT_GUEST
135         bool "Paravirtualized guest support"
136         depends on BROKEN
137         help
138           Say Y here to get to see options related to running Linux under
139           various hypervisors.  This option alone does not add any kernel code.
140 
141           If you say N, all options in this submenu will be skipped and disabled.
142 
143 if PARAVIRT_GUEST
144 
145 config PARAVIRT
146         bool "Enable paravirtualization code"
147         depends on PARAVIRT_GUEST
148         default y
149         help
150           This changes the kernel so it can modify itself when it is run
151           under a hypervisor, potentially improving performance significantly
152           over full virtualization.  However, when run without a hypervisor
153           the kernel is theoretically slower and slightly larger.
154 
155 endif
156 
157 choice
158         prompt "System type"
159         default IA64_GENERIC
160 
161 config IA64_GENERIC
162         bool "generic"
163         select NUMA
164         select ACPI_NUMA
165         select SWIOTLB
166         select PCI_MSI
167         help
168           This selects the system type of your hardware.  A "generic" kernel
169           will run on any supported IA-64 system.  However, if you configure
170           a kernel for your specific system, it will be faster and smaller.
171 
172           generic               For any supported IA-64 system
173           DIG-compliant         For DIG ("Developer's Interface Guide") compliant systems
174           DIG+Intel+IOMMU       For DIG systems with Intel IOMMU
175           HP-zx1/sx1000         For HP systems
176           HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices.
177           SGI-SN2               For SGI Altix systems
178           SGI-UV                For SGI UV systems
179           Ski-simulator         For the HP simulator <http://www.hpl.hp.com/research/linux/ski/>
180 
181           If you don't know what to do, choose "generic".
182 
183 config IA64_DIG
184         bool "DIG-compliant"
185         select SWIOTLB
186 
187 config IA64_DIG_VTD
188         bool "DIG+Intel+IOMMU"
189         select INTEL_IOMMU
190         select PCI_MSI
191 
192 config IA64_HP_ZX1
193         bool "HP-zx1/sx1000"
194         help
195           Build a kernel that runs on HP zx1 and sx1000 systems.  This adds
196           support for the HP I/O MMU.
197 
198 config IA64_HP_ZX1_SWIOTLB
199         bool "HP-zx1/sx1000 with software I/O TLB"
200         select SWIOTLB
201         help
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).
207 
208 config IA64_SGI_SN2
209         bool "SGI-SN2"
210         select NUMA
211         select ACPI_NUMA
212         help
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
217           instead.
218 
219 config IA64_SGI_UV
220         bool "SGI-UV"
221         select NUMA
222         select ACPI_NUMA
223         select SWIOTLB
224         help
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
229           instead.
230 
231 config IA64_HP_SIM
232         bool "Ski-simulator"
233         select SWIOTLB
234         depends on !PM
235 
236 endchoice
237 
238 choice
239         prompt "Processor type"
240         default ITANIUM
241 
242 config ITANIUM
243         bool "Itanium"
244         help
245           Select your IA-64 processor type.  The default is Itanium.
246           This choice is safe for all IA-64 systems, but may not perform
247           optimally on systems with, say, Itanium 2 or newer processors.
248 
249 config MCKINLEY
250         bool "Itanium 2"
251         help
252           Select this to configure for an Itanium 2 (McKinley) processor.
253 
254 endchoice
255 
256 choice
257         prompt "Kernel page size"
258         default IA64_PAGE_SIZE_16KB
259 
260 config IA64_PAGE_SIZE_4KB
261         bool "4KB"
262         help
263           This lets you select the page size of the kernel.  For best IA-64
264           performance, a page size of 8KB or 16KB is recommended.  For best
265           IA-32 compatibility, a page size of 4KB should be selected (the vast
266           majority of IA-32 binaries work perfectly fine with a larger page
267           size).  For Itanium 2 or newer systems, a page size of 64KB can also
268           be selected.
269 
270           4KB                For best IA-32 compatibility
271           8KB                For best IA-64 performance
272           16KB               For best IA-64 performance
273           64KB               Requires Itanium 2 or newer processor.
274 
275           If you don't know what to do, choose 16KB.
276 
277 config IA64_PAGE_SIZE_8KB
278         bool "8KB"
279 
280 config IA64_PAGE_SIZE_16KB
281         bool "16KB"
282 
283 config IA64_PAGE_SIZE_64KB
284         depends on !ITANIUM
285         bool "64KB"
286 
287 endchoice
288 
289 choice
290         prompt "Page Table Levels"
291         default PGTABLE_3
292 
293 config PGTABLE_3
294         bool "3 Levels"
295 
296 config PGTABLE_4
297         depends on !IA64_PAGE_SIZE_64KB
298         bool "4 Levels"
299 
300 endchoice
301 
302 if IA64_HP_SIM
303 config HZ
304         default 32
305 endif
306 
307 if !IA64_HP_SIM
308 source kernel/Kconfig.hz
309 endif
310 
311 config IA64_BRL_EMU
312         bool
313         depends on ITANIUM
314         default y
315 
316 # align cache-sensitive data to 128 bytes
317 config IA64_L1_CACHE_SHIFT
318         int
319         default "7" if MCKINLEY
320         default "6" if ITANIUM
321 
322 config IA64_CYCLONE
323         bool "Cyclone (EXA) Time Source support"
324         help
325           Say Y here to enable support for IBM EXA Cyclone time source.
326           If you're unsure, answer N.
327 
328 config IOSAPIC
329         bool
330         depends on !IA64_HP_SIM
331         default y
332 
333 config FORCE_MAX_ZONEORDER
334         int "MAX_ORDER (11 - 17)"  if !HUGETLB_PAGE
335         range 11 17  if !HUGETLB_PAGE
336         default "17" if HUGETLB_PAGE
337         default "11"
338 
339 config SMP
340         bool "Symmetric multi-processing support"
341         help
342           This enables support for systems with more than one CPU. If you have
343           a system with only one CPU, say N.  If you have a system with more
344           than one CPU, say Y.
345 
346           If you say N here, the kernel will run on single and multiprocessor
347           systems, but will use only one CPU of a multiprocessor system.  If
348           you say Y here, the kernel will run on many, but not all,
349           single processor systems.  On a single processor system, the kernel
350           will run faster if you say N here.
351 
352           See also the SMP-HOWTO available at
353           <http://www.tldp.org/docs.html#howto>.
354 
355           If you don't know what to do here, say N.
356 
357 config NR_CPUS
358         int "Maximum number of CPUs (2-4096)"
359         range 2 4096
360         depends on SMP
361         default "4096"
362         help
363           You should set this to the number of CPUs in your system, but
364           keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
365           only use 2 CPUs on a >2 CPU system.  Setting this to a value larger
366           than 64 will cause the use of a CPU mask array, causing a small
367           performance hit.
368 
369 config HOTPLUG_CPU
370         bool "Support for hot-pluggable CPUs"
371         depends on SMP
372         default n
373         ---help---
374           Say Y here to experiment with turning CPUs off and on.  CPUs
375           can be controlled through /sys/devices/system/cpu/cpu#.
376           Say N if you want to disable CPU hotplug.
377 
378 config ARCH_ENABLE_MEMORY_HOTPLUG
379         def_bool y
380 
381 config ARCH_ENABLE_MEMORY_HOTREMOVE
382         def_bool y
383 
384 config SCHED_SMT
385         bool "SMT scheduler support"
386         depends on SMP
387         help
388           Improves the CPU scheduler's decision making when dealing with
389           Intel IA64 chips with MultiThreading at a cost of slightly increased
390           overhead in some places. If unsure say N here.
391 
392 config PERMIT_BSP_REMOVE
393         bool "Support removal of Bootstrap Processor"
394         depends on HOTPLUG_CPU
395         default n
396         ---help---
397         Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
398         support. 
399 
400 config FORCE_CPEI_RETARGET
401         bool "Force assumption that CPEI can be re-targeted"
402         depends on PERMIT_BSP_REMOVE
403         default n
404         ---help---
405         Say Y if you need to force the assumption that CPEI can be re-targeted to
406         any cpu in the system. This hint is available via ACPI 3.0 specifications.
407         Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
408         This option it useful to enable this feature on older BIOS's as well.
409         You can also enable this by using boot command line option force_cpei=1.
410 
411 source "kernel/Kconfig.preempt"
412 
413 source "mm/Kconfig"
414 
415 config ARCH_SELECT_MEMORY_MODEL
416         def_bool y
417 
418 config ARCH_DISCONTIGMEM_ENABLE
419         def_bool y
420         help
421           Say Y to support efficient handling of discontiguous physical memory,
422           for architectures which are either NUMA (Non-Uniform Memory Access)
423           or have huge holes in the physical address space for other reasons.
424           See <file:Documentation/vm/numa> for more.
425 
426 config ARCH_FLATMEM_ENABLE
427         def_bool y
428 
429 config ARCH_SPARSEMEM_ENABLE
430         def_bool y
431         depends on ARCH_DISCONTIGMEM_ENABLE
432         select SPARSEMEM_VMEMMAP_ENABLE
433 
434 config ARCH_DISCONTIGMEM_DEFAULT
435         def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
436         depends on ARCH_DISCONTIGMEM_ENABLE
437 
438 config NUMA
439         bool "NUMA support"
440         depends on !IA64_HP_SIM && !FLATMEM
441         default y if IA64_SGI_SN2
442         select ACPI_NUMA if ACPI
443         help
444           Say Y to compile the kernel to support NUMA (Non-Uniform Memory
445           Access).  This option is for configuring high-end multiprocessor
446           server systems.  If in doubt, say N.
447 
448 config NODES_SHIFT
449         int "Max num nodes shift(3-10)"
450         range 3 10
451         default "10"
452         depends on NEED_MULTIPLE_NODES
453         help
454           This option specifies the maximum number of nodes in your SSI system.
455           MAX_NUMNODES will be 2^(This value).
456           If in doubt, use the default.
457 
458 # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
459 # VIRTUAL_MEM_MAP has been retained for historical reasons.
460 config VIRTUAL_MEM_MAP
461         bool "Virtual mem map"
462         depends on !SPARSEMEM
463         default y if !IA64_HP_SIM
464         help
465           Say Y to compile the kernel with support for a virtual mem map.
466           This code also only takes effect if a memory hole of greater than
467           1 Gb is found during boot.  You must turn this option on if you
468           require the DISCONTIGMEM option for your machine. If you are
469           unsure, say Y.
470 
471 config HOLES_IN_ZONE
472         bool
473         default y if VIRTUAL_MEM_MAP
474 
475 config HAVE_ARCH_EARLY_PFN_TO_NID
476         def_bool NUMA && SPARSEMEM
477 
478 config HAVE_ARCH_NODEDATA_EXTENSION
479         def_bool y
480         depends on NUMA
481 
482 config USE_PERCPU_NUMA_NODE_ID
483         def_bool y
484         depends on NUMA
485 
486 config HAVE_MEMORYLESS_NODES
487         def_bool NUMA
488 
489 config ARCH_PROC_KCORE_TEXT
490         def_bool y
491         depends on PROC_KCORE
492 
493 config IA64_MCA_RECOVERY
494         tristate "MCA recovery from errors other than TLB."
495 
496 config PERFMON
497         bool "Performance monitor support"
498         help
499           Selects whether support for the IA-64 performance monitor hardware
500           is included in the kernel.  This makes some kernel data-structures a
501           little bigger and slows down execution a bit, but it is generally
502           a good idea to turn this on.  If you're unsure, say Y.
503 
504 config IA64_PALINFO
505         tristate "/proc/pal support"
506         help
507           If you say Y here, you are able to get PAL (Processor Abstraction
508           Layer) information in /proc/pal.  This contains useful information
509           about the processors in your systems, such as cache and TLB sizes
510           and the PAL firmware version in use.
511 
512           To use this option, you have to ensure that the "/proc file system
513           support" (CONFIG_PROC_FS) is enabled, too.
514 
515 config IA64_MC_ERR_INJECT
516         tristate "MC error injection support"
517         help
518           Adds support for MC error injection. If enabled, the kernel 
519           will provide a sysfs interface for user applications to
520           call MC error injection PAL procedures to inject various errors.
521           This is a useful tool for MCA testing.
522 
523           If you're unsure, do not select this option.
524 
525 config SGI_SN
526         def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
527 
528 config IA64_ESI
529         bool "ESI (Extensible SAL Interface) support"
530         help
531           If you say Y here, support is built into the kernel to
532           make ESI calls.  ESI calls are used to support vendor-specific
533           firmware extensions, such as the ability to inject memory-errors
534           for test-purposes.  If you're unsure, say N.
535 
536 config IA64_HP_AML_NFW
537         bool "Support ACPI AML calls to native firmware"
538         help
539           This driver installs a global ACPI Operation Region handler for
540           region 0xA1.  AML methods can use this OpRegion to call arbitrary
541           native firmware functions.  The driver installs the OpRegion
542           handler if there is an HPQ5001 device or if the user supplies
543           the "force" module parameter, e.g., with the "aml_nfw.force"
544           kernel command line option.
545 
546 source "drivers/sn/Kconfig"
547 
548 config KEXEC
549         bool "kexec system call"
550         depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
551         help
552           kexec is a system call that implements the ability to shutdown your
553           current kernel, and to start another kernel.  It is like a reboot
554           but it is independent of the system firmware.   And like a reboot
555           you can start any kernel with it, not just Linux.
556 
557           The name comes from the similarity to the exec system call.
558 
559           It is an ongoing process to be certain the hardware in a machine
560           is properly shutdown, so do not be surprised if this code does not
561           initially work for you.  As of this writing the exact hardware
562           interface is strongly in flux, so no good recommendation can be
563           made.
564 
565 config CRASH_DUMP
566           bool "kernel crash dumps"
567           depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
568           help
569             Generate crash dump after being started by kexec.
570 
571 source "drivers/firmware/Kconfig"
572 
573 source "fs/Kconfig.binfmt"
574 
575 endmenu
576 
577 menu "Power management and ACPI options"
578 
579 source "kernel/power/Kconfig"
580 
581 source "drivers/acpi/Kconfig"
582 
583 if PM
584 menu "CPU Frequency scaling"
585 source "drivers/cpufreq/Kconfig"
586 endmenu
587 endif
588 
589 endmenu
590 
591 if !IA64_HP_SIM
592 
593 menu "Bus options (PCI, PCMCIA)"
594 
595 config PCI
596         bool "PCI support"
597         help
598           Real IA-64 machines all have PCI/PCI-X/PCI Express busses.  Say Y
599           here unless you are using a simulator without PCI support.
600 
601 config PCI_DOMAINS
602         def_bool PCI
603 
604 config PCI_SYSCALL
605         def_bool PCI
606 
607 source "drivers/pci/pcie/Kconfig"
608 
609 source "drivers/pci/Kconfig"
610 
611 source "drivers/pci/hotplug/Kconfig"
612 
613 source "drivers/pcmcia/Kconfig"
614 
615 endmenu
616 
617 endif
618 
619 source "net/Kconfig"
620 
621 source "drivers/Kconfig"
622 
623 source "arch/ia64/hp/sim/Kconfig"
624 
625 config MSPEC
626         tristate "Memory special operations driver"
627         depends on IA64
628         select IA64_UNCACHED_ALLOCATOR
629         help
630           If you have an ia64 and you want to enable memory special
631           operations support (formerly known as fetchop), say Y here,
632           otherwise say N.
633 
634 source "fs/Kconfig"
635 
636 source "arch/ia64/Kconfig.debug"
637 
638 source "security/Kconfig"
639 
640 source "crypto/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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