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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 PM if (!IA64_HP_SIM)
 15         select HAVE_UNSTABLE_SCHED_CLOCK
 16         select HAVE_IDE
 17         select HAVE_OPROFILE
 18         select HAVE_KPROBES
 19         select HAVE_KRETPROBES
 20         select HAVE_FTRACE_MCOUNT_RECORD
 21         select HAVE_DYNAMIC_FTRACE if (!ITANIUM)
 22         select HAVE_FUNCTION_TRACER
 23         select HAVE_DMA_ATTRS
 24         select HAVE_KVM
 25         select TTY
 26         select HAVE_ARCH_TRACEHOOK
 27         select HAVE_DMA_API_DEBUG
 28         select HAVE_MEMBLOCK
 29         select HAVE_MEMBLOCK_NODE_MAP
 30         select HAVE_VIRT_CPU_ACCOUNTING
 31         select ARCH_HAS_SG_CHAIN
 32         select VIRT_TO_BUS
 33         select ARCH_DISCARD_MEMBLOCK
 34         select GENERIC_IRQ_PROBE
 35         select GENERIC_PENDING_IRQ if SMP
 36         select GENERIC_IRQ_SHOW
 37         select GENERIC_IRQ_LEGACY
 38         select ARCH_WANT_OPTIONAL_GPIOLIB
 39         select ARCH_HAVE_NMI_SAFE_CMPXCHG
 40         select GENERIC_IOMAP
 41         select GENERIC_SMP_IDLE_THREAD
 42         select ARCH_INIT_TASK
 43         select ARCH_TASK_STRUCT_ALLOCATOR
 44         select ARCH_THREAD_INFO_ALLOCATOR
 45         select ARCH_CLOCKSOURCE_DATA
 46         select GENERIC_TIME_VSYSCALL_OLD
 47         select SYSCTL_ARCH_UNALIGN_NO_WARN
 48         select HAVE_MOD_ARCH_SPECIFIC
 49         select MODULES_USE_ELF_RELA
 50         select ARCH_USE_CMPXCHG_LOCKREF
 51         select HAVE_ARCH_AUDITSYSCALL
 52         default y
 53         help
 54           The Itanium Processor Family is Intel's 64-bit successor to
 55           the 32-bit X86 line.  The IA-64 Linux project has a home
 56           page at <http://www.linuxia64.org/> and a mailing list at
 57           <linux-ia64@vger.kernel.org>.
 58 
 59 config 64BIT
 60         bool
 61         select ATA_NONSTANDARD if ATA
 62         default y
 63 
 64 config ZONE_DMA
 65         def_bool y
 66         depends on !IA64_SGI_SN2
 67 
 68 config QUICKLIST
 69         bool
 70         default y
 71 
 72 config MMU
 73         bool
 74         default y
 75 
 76 config ARCH_DMA_ADDR_T_64BIT
 77         def_bool y
 78 
 79 config NEED_DMA_MAP_STATE
 80         def_bool y
 81 
 82 config NEED_SG_DMA_LENGTH
 83         def_bool y
 84 
 85 config SWIOTLB
 86        bool
 87 
 88 config STACKTRACE_SUPPORT
 89         def_bool y
 90 
 91 config GENERIC_LOCKBREAK
 92         def_bool n
 93 
 94 config RWSEM_XCHGADD_ALGORITHM
 95         bool
 96         default y
 97 
 98 config HUGETLB_PAGE_SIZE_VARIABLE
 99         bool
100         depends on HUGETLB_PAGE
101         default y
102 
103 config GENERIC_CALIBRATE_DELAY
104         bool
105         default y
106 
107 config HAVE_SETUP_PER_CPU_AREA
108         def_bool y
109 
110 config DMI
111         bool
112         default y
113         select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
114 
115 config EFI
116         bool
117         select UCS2_STRING
118         default y
119 
120 config SCHED_OMIT_FRAME_POINTER
121         bool
122         default y
123 
124 config IA64_UNCACHED_ALLOCATOR
125         bool
126         select GENERIC_ALLOCATOR
127 
128 config ARCH_USES_PG_UNCACHED
129         def_bool y
130         depends on IA64_UNCACHED_ALLOCATOR
131 
132 config AUDIT_ARCH
133         bool
134         default y
135 
136 menuconfig PARAVIRT_GUEST
137         bool "Paravirtualized guest support"
138         depends on BROKEN
139         help
140           Say Y here to get to see options related to running Linux under
141           various hypervisors.  This option alone does not add any kernel code.
142 
143           If you say N, all options in this submenu will be skipped and disabled.
144 
145 if PARAVIRT_GUEST
146 
147 config PARAVIRT
148         bool "Enable paravirtualization code"
149         depends on PARAVIRT_GUEST
150         default y
151         help
152           This changes the kernel so it can modify itself when it is run
153           under a hypervisor, potentially improving performance significantly
154           over full virtualization.  However, when run without a hypervisor
155           the kernel is theoretically slower and slightly larger.
156 
157 endif
158 
159 choice
160         prompt "System type"
161         default IA64_GENERIC
162 
163 config IA64_GENERIC
164         bool "generic"
165         select NUMA
166         select ACPI_NUMA
167         select SWIOTLB
168         select PCI_MSI
169         help
170           This selects the system type of your hardware.  A "generic" kernel
171           will run on any supported IA-64 system.  However, if you configure
172           a kernel for your specific system, it will be faster and smaller.
173 
174           generic               For any supported IA-64 system
175           DIG-compliant         For DIG ("Developer's Interface Guide") compliant systems
176           DIG+Intel+IOMMU       For DIG systems with Intel IOMMU
177           HP-zx1/sx1000         For HP systems
178           HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices.
179           SGI-SN2               For SGI Altix systems
180           SGI-UV                For SGI UV systems
181           Ski-simulator         For the HP simulator <http://www.hpl.hp.com/research/linux/ski/>
182 
183           If you don't know what to do, choose "generic".
184 
185 config IA64_DIG
186         bool "DIG-compliant"
187         select SWIOTLB
188 
189 config IA64_DIG_VTD
190         bool "DIG+Intel+IOMMU"
191         select INTEL_IOMMU
192         select PCI_MSI
193 
194 config IA64_HP_ZX1
195         bool "HP-zx1/sx1000"
196         help
197           Build a kernel that runs on HP zx1 and sx1000 systems.  This adds
198           support for the HP I/O MMU.
199 
200 config IA64_HP_ZX1_SWIOTLB
201         bool "HP-zx1/sx1000 with software I/O TLB"
202         select SWIOTLB
203         help
204           Build a kernel that runs on HP zx1 and sx1000 systems even when they
205           have broken PCI devices which cannot DMA to full 32 bits.  Apart
206           from support for the HP I/O MMU, this includes support for the software
207           I/O TLB, which allows supporting the broken devices at the expense of
208           wasting some kernel memory (about 2MB by default).
209 
210 config IA64_SGI_SN2
211         bool "SGI-SN2"
212         select NUMA
213         select ACPI_NUMA
214         help
215           Selecting this option will optimize the kernel for use on sn2 based
216           systems, but the resulting kernel binary will not run on other
217           types of ia64 systems.  If you have an SGI Altix system, it's safe
218           to select this option.  If in doubt, select ia64 generic support
219           instead.
220 
221 config IA64_SGI_UV
222         bool "SGI-UV"
223         select NUMA
224         select ACPI_NUMA
225         select SWIOTLB
226         help
227           Selecting this option will optimize the kernel for use on UV based
228           systems, but the resulting kernel binary will not run on other
229           types of ia64 systems.  If you have an SGI UV system, it's safe
230           to select this option.  If in doubt, select ia64 generic support
231           instead.
232 
233 config IA64_HP_SIM
234         bool "Ski-simulator"
235         select SWIOTLB
236 
237 endchoice
238 
239 choice
240         prompt "Processor type"
241         default ITANIUM
242 
243 config ITANIUM
244         bool "Itanium"
245         help
246           Select your IA-64 processor type.  The default is Itanium.
247           This choice is safe for all IA-64 systems, but may not perform
248           optimally on systems with, say, Itanium 2 or newer processors.
249 
250 config MCKINLEY
251         bool "Itanium 2"
252         help
253           Select this to configure for an Itanium 2 (McKinley) processor.
254 
255 endchoice
256 
257 choice
258         prompt "Kernel page size"
259         default IA64_PAGE_SIZE_16KB
260 
261 config IA64_PAGE_SIZE_4KB
262         bool "4KB"
263         help
264           This lets you select the page size of the kernel.  For best IA-64
265           performance, a page size of 8KB or 16KB is recommended.  For best
266           IA-32 compatibility, a page size of 4KB should be selected (the vast
267           majority of IA-32 binaries work perfectly fine with a larger page
268           size).  For Itanium 2 or newer systems, a page size of 64KB can also
269           be selected.
270 
271           4KB                For best IA-32 compatibility
272           8KB                For best IA-64 performance
273           16KB               For best IA-64 performance
274           64KB               Requires Itanium 2 or newer processor.
275 
276           If you don't know what to do, choose 16KB.
277 
278 config IA64_PAGE_SIZE_8KB
279         bool "8KB"
280 
281 config IA64_PAGE_SIZE_16KB
282         bool "16KB"
283 
284 config IA64_PAGE_SIZE_64KB
285         depends on !ITANIUM
286         bool "64KB"
287 
288 endchoice
289 
290 choice
291         prompt "Page Table Levels"
292         default PGTABLE_3
293 
294 config PGTABLE_3
295         bool "3 Levels"
296 
297 config PGTABLE_4
298         depends on !IA64_PAGE_SIZE_64KB
299         bool "4 Levels"
300 
301 endchoice
302 
303 if IA64_HP_SIM
304 config HZ
305         default 32
306 endif
307 
308 if !IA64_HP_SIM
309 source kernel/Kconfig.hz
310 endif
311 
312 config IA64_BRL_EMU
313         bool
314         depends on ITANIUM
315         default y
316 
317 # align cache-sensitive data to 128 bytes
318 config IA64_L1_CACHE_SHIFT
319         int
320         default "7" if MCKINLEY
321         default "6" if ITANIUM
322 
323 config IA64_CYCLONE
324         bool "Cyclone (EXA) Time Source support"
325         help
326           Say Y here to enable support for IBM EXA Cyclone time source.
327           If you're unsure, answer N.
328 
329 config IOSAPIC
330         bool
331         depends on !IA64_HP_SIM
332         default y
333 
334 config FORCE_MAX_ZONEORDER
335         int "MAX_ORDER (11 - 17)"  if !HUGETLB_PAGE
336         range 11 17  if !HUGETLB_PAGE
337         default "17" if HUGETLB_PAGE
338         default "11"
339 
340 config SMP
341         bool "Symmetric multi-processing support"
342         help
343           This enables support for systems with more than one CPU. If you have
344           a system with only one CPU, say N.  If you have a system with more
345           than one CPU, say Y.
346 
347           If you say N here, the kernel will run on single and multiprocessor
348           systems, but will use only one CPU of a multiprocessor system.  If
349           you say Y here, the kernel will run on many, but not all,
350           single processor systems.  On a single processor system, the kernel
351           will run faster if you say N here.
352 
353           See also the SMP-HOWTO available at
354           <http://www.tldp.org/docs.html#howto>.
355 
356           If you don't know what to do here, say N.
357 
358 config NR_CPUS
359         int "Maximum number of CPUs (2-4096)"
360         range 2 4096
361         depends on SMP
362         default "4096"
363         help
364           You should set this to the number of CPUs in your system, but
365           keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
366           only use 2 CPUs on a >2 CPU system.  Setting this to a value larger
367           than 64 will cause the use of a CPU mask array, causing a small
368           performance hit.
369 
370 config HOTPLUG_CPU
371         bool "Support for hot-pluggable CPUs"
372         depends on SMP
373         default n
374         ---help---
375           Say Y here to experiment with turning CPUs off and on.  CPUs
376           can be controlled through /sys/devices/system/cpu/cpu#.
377           Say N if you want to disable CPU hotplug.
378 
379 config ARCH_ENABLE_MEMORY_HOTPLUG
380         def_bool y
381 
382 config ARCH_ENABLE_MEMORY_HOTREMOVE
383         def_bool y
384 
385 config SCHED_SMT
386         bool "SMT scheduler support"
387         depends on SMP
388         help
389           Improves the CPU scheduler's decision making when dealing with
390           Intel IA64 chips with MultiThreading at a cost of slightly increased
391           overhead in some places. If unsure say N here.
392 
393 config PERMIT_BSP_REMOVE
394         bool "Support removal of Bootstrap Processor"
395         depends on HOTPLUG_CPU
396         default n
397         ---help---
398         Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
399         support. 
400 
401 config FORCE_CPEI_RETARGET
402         bool "Force assumption that CPEI can be re-targeted"
403         depends on PERMIT_BSP_REMOVE
404         default n
405         ---help---
406         Say Y if you need to force the assumption that CPEI can be re-targeted to
407         any cpu in the system. This hint is available via ACPI 3.0 specifications.
408         Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
409         This option it useful to enable this feature on older BIOS's as well.
410         You can also enable this by using boot command line option force_cpei=1.
411 
412 source "kernel/Kconfig.preempt"
413 
414 source "mm/Kconfig"
415 
416 config ARCH_SELECT_MEMORY_MODEL
417         def_bool y
418 
419 config ARCH_DISCONTIGMEM_ENABLE
420         def_bool y
421         help
422           Say Y to support efficient handling of discontiguous physical memory,
423           for architectures which are either NUMA (Non-Uniform Memory Access)
424           or have huge holes in the physical address space for other reasons.
425           See <file:Documentation/vm/numa> for more.
426 
427 config ARCH_FLATMEM_ENABLE
428         def_bool y
429 
430 config ARCH_SPARSEMEM_ENABLE
431         def_bool y
432         depends on ARCH_DISCONTIGMEM_ENABLE
433         select SPARSEMEM_VMEMMAP_ENABLE
434 
435 config ARCH_DISCONTIGMEM_DEFAULT
436         def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
437         depends on ARCH_DISCONTIGMEM_ENABLE
438 
439 config NUMA
440         bool "NUMA support"
441         depends on !IA64_HP_SIM && !FLATMEM
442         default y if IA64_SGI_SN2
443         select ACPI_NUMA if ACPI
444         help
445           Say Y to compile the kernel to support NUMA (Non-Uniform Memory
446           Access).  This option is for configuring high-end multiprocessor
447           server systems.  If in doubt, say N.
448 
449 config NODES_SHIFT
450         int "Max num nodes shift(3-10)"
451         range 3 10
452         default "10"
453         depends on NEED_MULTIPLE_NODES
454         help
455           This option specifies the maximum number of nodes in your SSI system.
456           MAX_NUMNODES will be 2^(This value).
457           If in doubt, use the default.
458 
459 # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
460 # VIRTUAL_MEM_MAP has been retained for historical reasons.
461 config VIRTUAL_MEM_MAP
462         bool "Virtual mem map"
463         depends on !SPARSEMEM
464         default y if !IA64_HP_SIM
465         help
466           Say Y to compile the kernel with support for a virtual mem map.
467           This code also only takes effect if a memory hole of greater than
468           1 Gb is found during boot.  You must turn this option on if you
469           require the DISCONTIGMEM option for your machine. If you are
470           unsure, say Y.
471 
472 config HOLES_IN_ZONE
473         bool
474         default y if VIRTUAL_MEM_MAP
475 
476 config HAVE_ARCH_EARLY_PFN_TO_NID
477         def_bool NUMA && SPARSEMEM
478 
479 config HAVE_ARCH_NODEDATA_EXTENSION
480         def_bool y
481         depends on NUMA
482 
483 config USE_PERCPU_NUMA_NODE_ID
484         def_bool y
485         depends on NUMA
486 
487 config HAVE_MEMORYLESS_NODES
488         def_bool NUMA
489 
490 config ARCH_PROC_KCORE_TEXT
491         def_bool y
492         depends on PROC_KCORE
493 
494 config IA64_MCA_RECOVERY
495         tristate "MCA recovery from errors other than TLB."
496 
497 config PERFMON
498         bool "Performance monitor support"
499         help
500           Selects whether support for the IA-64 performance monitor hardware
501           is included in the kernel.  This makes some kernel data-structures a
502           little bigger and slows down execution a bit, but it is generally
503           a good idea to turn this on.  If you're unsure, say Y.
504 
505 config IA64_PALINFO
506         tristate "/proc/pal support"
507         help
508           If you say Y here, you are able to get PAL (Processor Abstraction
509           Layer) information in /proc/pal.  This contains useful information
510           about the processors in your systems, such as cache and TLB sizes
511           and the PAL firmware version in use.
512 
513           To use this option, you have to ensure that the "/proc file system
514           support" (CONFIG_PROC_FS) is enabled, too.
515 
516 config IA64_MC_ERR_INJECT
517         tristate "MC error injection support"
518         help
519           Adds support for MC error injection. If enabled, the kernel 
520           will provide a sysfs interface for user applications to
521           call MC error injection PAL procedures to inject various errors.
522           This is a useful tool for MCA testing.
523 
524           If you're unsure, do not select this option.
525 
526 config SGI_SN
527         def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
528 
529 config IA64_ESI
530         bool "ESI (Extensible SAL Interface) support"
531         help
532           If you say Y here, support is built into the kernel to
533           make ESI calls.  ESI calls are used to support vendor-specific
534           firmware extensions, such as the ability to inject memory-errors
535           for test-purposes.  If you're unsure, say N.
536 
537 config IA64_HP_AML_NFW
538         bool "Support ACPI AML calls to native firmware"
539         help
540           This driver installs a global ACPI Operation Region handler for
541           region 0xA1.  AML methods can use this OpRegion to call arbitrary
542           native firmware functions.  The driver installs the OpRegion
543           handler if there is an HPQ5001 device or if the user supplies
544           the "force" module parameter, e.g., with the "aml_nfw.force"
545           kernel command line option.
546 
547 source "drivers/sn/Kconfig"
548 
549 config KEXEC
550         bool "kexec system call"
551         depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
552         help
553           kexec is a system call that implements the ability to shutdown your
554           current kernel, and to start another kernel.  It is like a reboot
555           but it is independent of the system firmware.   And like a reboot
556           you can start any kernel with it, not just Linux.
557 
558           The name comes from the similarity to the exec system call.
559 
560           It is an ongoing process to be certain the hardware in a machine
561           is properly shutdown, so do not be surprised if this code does not
562           initially work for you.  As of this writing the exact hardware
563           interface is strongly in flux, so no good recommendation can be
564           made.
565 
566 config CRASH_DUMP
567           bool "kernel crash dumps"
568           depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
569           help
570             Generate crash dump after being started by kexec.
571 
572 source "drivers/firmware/Kconfig"
573 
574 source "fs/Kconfig.binfmt"
575 
576 endmenu
577 
578 menu "Power management and ACPI options"
579 
580 source "kernel/power/Kconfig"
581 
582 source "drivers/acpi/Kconfig"
583 
584 if PM
585 menu "CPU Frequency scaling"
586 source "drivers/cpufreq/Kconfig"
587 endmenu
588 endif
589 
590 endmenu
591 
592 if !IA64_HP_SIM
593 
594 menu "Bus options (PCI, PCMCIA)"
595 
596 config PCI
597         bool "PCI support"
598         help
599           Real IA-64 machines all have PCI/PCI-X/PCI Express busses.  Say Y
600           here unless you are using a simulator without PCI support.
601 
602 config PCI_DOMAINS
603         def_bool PCI
604 
605 config PCI_SYSCALL
606         def_bool PCI
607 
608 source "drivers/pci/pcie/Kconfig"
609 
610 source "drivers/pci/Kconfig"
611 
612 source "drivers/pci/hotplug/Kconfig"
613 
614 source "drivers/pcmcia/Kconfig"
615 
616 endmenu
617 
618 endif
619 
620 source "net/Kconfig"
621 
622 source "drivers/Kconfig"
623 
624 source "arch/ia64/hp/sim/Kconfig"
625 
626 config MSPEC
627         tristate "Memory special operations driver"
628         depends on IA64
629         select IA64_UNCACHED_ALLOCATOR
630         help
631           If you have an ia64 and you want to enable memory special
632           operations support (formerly known as fetchop), say Y here,
633           otherwise say N.
634 
635 source "fs/Kconfig"
636 
637 source "arch/ia64/Kconfig.debug"
638 
639 source "security/Kconfig"
640 
641 source "crypto/Kconfig"
642 
643 source "arch/ia64/kvm/Kconfig"
644 
645 source "lib/Kconfig"
646 
647 config IOMMU_HELPER
648         def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)

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