1source "init/Kconfig"
2
3source "kernel/Kconfig.freezer"
4
5menu "Processor type and features"
6
7config IA64
8 bool
9 select PCI if (!IA64_HP_SIM)
10 select ACPI if (!IA64_HP_SIM)
11 select PM if (!IA64_HP_SIM)
12 select ARCH_SUPPORTS_MSI
13 select HAVE_UNSTABLE_SCHED_CLOCK
14 select HAVE_IDE
15 select HAVE_OPROFILE
16 select HAVE_KPROBES
17 select HAVE_KRETPROBES
18 select HAVE_FTRACE_MCOUNT_RECORD
19 select HAVE_DYNAMIC_FTRACE if (!ITANIUM)
20 select HAVE_FUNCTION_TRACER
21 select HAVE_DMA_ATTRS
22 select HAVE_KVM
23 select HAVE_ARCH_TRACEHOOK
24 select HAVE_DMA_API_DEBUG
25 select HAVE_GENERIC_HARDIRQS
26 select GENERIC_IRQ_PROBE
27 select GENERIC_PENDING_IRQ if SMP
28 select IRQ_PER_CPU
29 default y
30 help
31 The Itanium Processor Family is Intel's 64-bit successor to
32 the 32-bit X86 line. The IA-64 Linux project has a home
33 page at <http://www.linuxia64.org/> and a mailing list at
34 <linux-ia64@vger.kernel.org>.
35
36config 64BIT
37 bool
38 select ATA_NONSTANDARD if ATA
39 default y
40
41config ZONE_DMA
42 def_bool y
43 depends on !IA64_SGI_SN2
44
45config QUICKLIST
46 bool
47 default y
48
49config MMU
50 bool
51 default y
52
53config ARCH_DMA_ADDR_T_64BIT
54 def_bool y
55
56config NEED_DMA_MAP_STATE
57 def_bool y
58
59config NEED_SG_DMA_LENGTH
60 def_bool y
61
62config SWIOTLB
63 bool
64
65config STACKTRACE_SUPPORT
66 def_bool y
67
68config GENERIC_LOCKBREAK
69 def_bool n
70
71config RWSEM_XCHGADD_ALGORITHM
72 bool
73 default y
74
75config HUGETLB_PAGE_SIZE_VARIABLE
76 bool
77 depends on HUGETLB_PAGE
78 default y
79
80config GENERIC_FIND_NEXT_BIT
81 bool
82 default y
83
84config GENERIC_CALIBRATE_DELAY
85 bool
86 default y
87
88config GENERIC_TIME_VSYSCALL
89 bool
90 default y
91
92config HAVE_SETUP_PER_CPU_AREA
93 def_bool y
94
95config DMI
96 bool
97 default y
98
99config EFI
100 bool
101 default y
102
103config GENERIC_IOMAP
104 bool
105 default y
106
107config SCHED_OMIT_FRAME_POINTER
108 bool
109 default y
110
111config IA64_UNCACHED_ALLOCATOR
112 bool
113 select GENERIC_ALLOCATOR
114
115config ARCH_USES_PG_UNCACHED
116 def_bool y
117 depends on IA64_UNCACHED_ALLOCATOR
118
119config AUDIT_ARCH
120 bool
121 default y
122
123menuconfig PARAVIRT_GUEST
124 bool "Paravirtualized guest support"
125 help
126 Say Y here to get to see options related to running Linux under
127 various hypervisors. This option alone does not add any kernel code.
128
129 If you say N, all options in this submenu will be skipped and disabled.
130
131if PARAVIRT_GUEST
132
133config PARAVIRT
134 bool "Enable paravirtualization code"
135 depends on PARAVIRT_GUEST
136 default y
137 bool
138 default y
139 help
140 This changes the kernel so it can modify itself when it is run
141 under a hypervisor, potentially improving performance significantly
142 over full virtualization. However, when run without a hypervisor
143 the kernel is theoretically slower and slightly larger.
144
145
146source "arch/ia64/xen/Kconfig"
147
148endif
149
150choice
151 prompt "System type"
152 default IA64_GENERIC
153
154config IA64_GENERIC
155 bool "generic"
156 select NUMA
157 select ACPI_NUMA
158 select SWIOTLB
159 select PCI_MSI
160 select DMAR
161 help
162 This selects the system type of your hardware. A "generic" kernel
163 will run on any supported IA-64 system. However, if you configure
164 a kernel for your specific system, it will be faster and smaller.
165
166 generic For any supported IA-64 system
167 DIG-compliant For DIG ("Developer's Interface Guide") compliant systems
168 DIG+Intel+IOMMU For DIG systems with Intel IOMMU
169 HP-zx1/sx1000 For HP systems
170 HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices.
171 SGI-SN2 For SGI Altix systems
172 SGI-UV For SGI UV systems
173 Ski-simulator For the HP simulator <http://www.hpl.hp.com/research/linux/ski/>
174 Xen-domU For xen domU system
175
176 If you don't know what to do, choose "generic".
177
178config IA64_DIG
179 bool "DIG-compliant"
180 select SWIOTLB
181
182config IA64_DIG_VTD
183 bool "DIG+Intel+IOMMU"
184 select DMAR
185 select PCI_MSI
186
187config IA64_HP_ZX1
188 bool "HP-zx1/sx1000"
189 help
190 Build a kernel that runs on HP zx1 and sx1000 systems. This adds
191 support for the HP I/O MMU.
192
193config IA64_HP_ZX1_SWIOTLB
194 bool "HP-zx1/sx1000 with software I/O TLB"
195 select SWIOTLB
196 help
197 Build a kernel that runs on HP zx1 and sx1000 systems even when they
198 have broken PCI devices which cannot DMA to full 32 bits. Apart
199 from support for the HP I/O MMU, this includes support for the software
200 I/O TLB, which allows supporting the broken devices at the expense of
201 wasting some kernel memory (about 2MB by default).
202
203config IA64_SGI_SN2
204 bool "SGI-SN2"
205 select NUMA
206 select ACPI_NUMA
207 help
208 Selecting this option will optimize the kernel for use on sn2 based
209 systems, but the resulting kernel binary will not run on other
210 types of ia64 systems. If you have an SGI Altix system, it's safe
211 to select this option. If in doubt, select ia64 generic support
212 instead.
213
214config IA64_SGI_UV
215 bool "SGI-UV"
216 select NUMA
217 select ACPI_NUMA
218 select SWIOTLB
219 help
220 Selecting this option will optimize the kernel for use on UV based
221 systems, but the resulting kernel binary will not run on other
222 types of ia64 systems. If you have an SGI UV system, it's safe
223 to select this option. If in doubt, select ia64 generic support
224 instead.
225
226config IA64_HP_SIM
227 bool "Ski-simulator"
228 select SWIOTLB
229
230config IA64_XEN_GUEST
231 bool "Xen guest"
232 select SWIOTLB
233 depends on XEN
234 help
235 Build a kernel that runs on Xen guest domain. At this moment only
236 16KB page size in supported.
237
238endchoice
239
240choice
241 prompt "Processor type"
242 default ITANIUM
243
244config ITANIUM
245 bool "Itanium"
246 help
247 Select your IA-64 processor type. The default is Itanium.
248 This choice is safe for all IA-64 systems, but may not perform
249 optimally on systems with, say, Itanium 2 or newer processors.
250
251config MCKINLEY
252 bool "Itanium 2"
253 help
254 Select this to configure for an Itanium 2 (McKinley) processor.
255
256endchoice
257
258choice
259 prompt "Kernel page size"
260 default IA64_PAGE_SIZE_16KB
261
262config IA64_PAGE_SIZE_4KB
263 bool "4KB"
264 help
265 This lets you select the page size of the kernel. For best IA-64
266 performance, a page size of 8KB or 16KB is recommended. For best
267 IA-32 compatibility, a page size of 4KB should be selected (the vast
268 majority of IA-32 binaries work perfectly fine with a larger page
269 size). For Itanium 2 or newer systems, a page size of 64KB can also
270 be selected.
271
272 4KB For best IA-32 compatibility
273 8KB For best IA-64 performance
274 16KB For best IA-64 performance
275 64KB Requires Itanium 2 or newer processor.
276
277 If you don't know what to do, choose 16KB.
278
279config IA64_PAGE_SIZE_8KB
280 bool "8KB"
281
282config IA64_PAGE_SIZE_16KB
283 bool "16KB"
284
285config IA64_PAGE_SIZE_64KB
286 depends on !ITANIUM
287 bool "64KB"
288
289endchoice
290
291choice
292 prompt "Page Table Levels"
293 default PGTABLE_3
294
295config PGTABLE_3
296 bool "3 Levels"
297
298config PGTABLE_4
299 depends on !IA64_PAGE_SIZE_64KB
300 bool "4 Levels"
301
302endchoice
303
304if IA64_HP_SIM
305config HZ
306 default 32
307endif
308
309if !IA64_HP_SIM
310source kernel/Kconfig.hz
311endif
312
313config IA64_BRL_EMU
314 bool
315 depends on ITANIUM
316 default y
317
318
319config IA64_L1_CACHE_SHIFT
320 int
321 default "7" if MCKINLEY
322 default "6" if ITANIUM
323
324config IA64_CYCLONE
325 bool "Cyclone (EXA) Time Source support"
326 help
327 Say Y here to enable support for IBM EXA Cyclone time source.
328 If you're unsure, answer N.
329
330config IOSAPIC
331 bool
332 depends on !IA64_HP_SIM
333 default y
334
335config FORCE_MAX_ZONEORDER
336 int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE
337 range 11 17 if !HUGETLB_PAGE
338 default "17" if HUGETLB_PAGE
339 default "11"
340
341config VIRT_CPU_ACCOUNTING
342 bool "Deterministic task and CPU time accounting"
343 default n
344 help
345 Select this option to enable more accurate task and CPU time
346 accounting. This is done by reading a CPU counter on each
347 kernel entry and exit and on transitions within the kernel
348 between system, softirq and hardirq state, so there is a
349 small performance impact.
350 If in doubt, say N here.
351
352config SMP
353 bool "Symmetric multi-processing support"
354 select USE_GENERIC_SMP_HELPERS
355 help
356 This enables support for systems with more than one CPU. If you have
357 a system with only one CPU, say N. If you have a system with more
358 than one CPU, say Y.
359
360 If you say N here, the kernel will run on single and multiprocessor
361 systems, but will use only one CPU of a multiprocessor system. If
362 you say Y here, the kernel will run on many, but not all,
363 single processor systems. On a single processor system, the kernel
364 will run faster if you say N here.
365
366 See also the SMP-HOWTO available at
367 <http://www.tldp.org/docs.html#howto>.
368
369 If you don't know what to do here, say N.
370
371config NR_CPUS
372 int "Maximum number of CPUs (2-4096)"
373 range 2 4096
374 depends on SMP
375 default "4096"
376 help
377 You should set this to the number of CPUs in your system, but
378 keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
379 only use 2 CPUs on a >2 CPU system. Setting this to a value larger
380 than 64 will cause the use of a CPU mask array, causing a small
381 performance hit.
382
383config HOTPLUG_CPU
384 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
385 depends on SMP && EXPERIMENTAL
386 select HOTPLUG
387 default n
388 ---help---
389 Say Y here to experiment with turning CPUs off and on. CPUs
390 can be controlled through /sys/devices/system/cpu/cpu
391 Say N if you want to disable CPU hotplug.
392
393config ARCH_ENABLE_MEMORY_HOTPLUG
394 def_bool y
395
396config ARCH_ENABLE_MEMORY_HOTREMOVE
397 def_bool y
398
399config SCHED_SMT
400 bool "SMT scheduler support"
401 depends on SMP
402 help
403 Improves the CPU scheduler's decision making when dealing with
404 Intel IA64 chips with MultiThreading at a cost of slightly increased
405 overhead in some places. If unsure say N here.
406
407config PERMIT_BSP_REMOVE
408 bool "Support removal of Bootstrap Processor"
409 depends on HOTPLUG_CPU
410 default n
411 ---help---
412 Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
413 support.
414
415config FORCE_CPEI_RETARGET
416 bool "Force assumption that CPEI can be re-targetted"
417 depends on PERMIT_BSP_REMOVE
418 default n
419 ---help---
420 Say Y if you need to force the assumption that CPEI can be re-targetted to
421 any cpu in the system. This hint is available via ACPI 3.0 specifications.
422 Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
423 This option it useful to enable this feature on older BIOS's as well.
424 You can also enable this by using boot command line option force_cpei=1.
425
426source "kernel/Kconfig.preempt"
427
428source "mm/Kconfig"
429
430config ARCH_SELECT_MEMORY_MODEL
431 def_bool y
432
433config ARCH_DISCONTIGMEM_ENABLE
434 def_bool y
435 help
436 Say Y to support efficient handling of discontiguous physical memory,
437 for architectures which are either NUMA (Non-Uniform Memory Access)
438 or have huge holes in the physical address space for other reasons.
439 See <file:Documentation/vm/numa> for more.
440
441config ARCH_FLATMEM_ENABLE
442 def_bool y
443
444config ARCH_SPARSEMEM_ENABLE
445 def_bool y
446 depends on ARCH_DISCONTIGMEM_ENABLE
447 select SPARSEMEM_VMEMMAP_ENABLE
448
449config ARCH_DISCONTIGMEM_DEFAULT
450 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
451 depends on ARCH_DISCONTIGMEM_ENABLE
452
453config NUMA
454 bool "NUMA support"
455 depends on !IA64_HP_SIM && !FLATMEM
456 default y if IA64_SGI_SN2
457 select ACPI_NUMA if ACPI
458 help
459 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
460 Access). This option is for configuring high-end multiprocessor
461 server systems. If in doubt, say N.
462
463config NODES_SHIFT
464 int "Max num nodes shift(3-10)"
465 range 3 10
466 default "10"
467 depends on NEED_MULTIPLE_NODES
468 help
469 This option specifies the maximum number of nodes in your SSI system.
470 MAX_NUMNODES will be 2^(This value).
471 If in doubt, use the default.
472
473config ARCH_POPULATES_NODE_MAP
474 def_bool y
475
476
477
478config VIRTUAL_MEM_MAP
479 bool "Virtual mem map"
480 depends on !SPARSEMEM
481 default y if !IA64_HP_SIM
482 help
483 Say Y to compile the kernel with support for a virtual mem map.
484 This code also only takes effect if a memory hole of greater than
485 1 Gb is found during boot. You must turn this option on if you
486 require the DISCONTIGMEM option for your machine. If you are
487 unsure, say Y.
488
489config HOLES_IN_ZONE
490 bool
491 default y if VIRTUAL_MEM_MAP
492
493config HAVE_ARCH_EARLY_PFN_TO_NID
494 def_bool NUMA && SPARSEMEM
495
496config HAVE_ARCH_NODEDATA_EXTENSION
497 def_bool y
498 depends on NUMA
499
500config USE_PERCPU_NUMA_NODE_ID
501 def_bool y
502 depends on NUMA
503
504config HAVE_MEMORYLESS_NODES
505 def_bool NUMA
506
507config ARCH_PROC_KCORE_TEXT
508 def_bool y
509 depends on PROC_KCORE
510
511config IA64_MCA_RECOVERY
512 tristate "MCA recovery from errors other than TLB."
513
514config PERFMON
515 bool "Performance monitor support"
516 help
517 Selects whether support for the IA-64 performance monitor hardware
518 is included in the kernel. This makes some kernel data-structures a
519 little bigger and slows down execution a bit, but it is generally
520 a good idea to turn this on. If you're unsure, say Y.
521
522config IA64_PALINFO
523 tristate "/proc/pal support"
524 help
525 If you say Y here, you are able to get PAL (Processor Abstraction
526 Layer) information in /proc/pal. This contains useful information
527 about the processors in your systems, such as cache and TLB sizes
528 and the PAL firmware version in use.
529
530 To use this option, you have to ensure that the "/proc file system
531 support" (CONFIG_PROC_FS) is enabled, too.
532
533config IA64_MC_ERR_INJECT
534 tristate "MC error injection support"
535 help
536 Adds support for MC error injection. If enabled, the kernel
537 will provide a sysfs interface for user applications to
538 call MC error injection PAL procedures to inject various errors.
539 This is a useful tool for MCA testing.
540
541 If you're unsure, do not select this option.
542
543config SGI_SN
544 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
545
546config IA64_ESI
547 bool "ESI (Extensible SAL Interface) support"
548 help
549 If you say Y here, support is built into the kernel to
550 make ESI calls. ESI calls are used to support vendor-specific
551 firmware extensions, such as the ability to inject memory-errors
552 for test-purposes. If you're unsure, say N.
553
554config IA64_HP_AML_NFW
555 bool "Support ACPI AML calls to native firmware"
556 help
557 This driver installs a global ACPI Operation Region handler for
558 region 0xA1. AML methods can use this OpRegion to call arbitrary
559 native firmware functions. The driver installs the OpRegion
560 handler if there is an HPQ5001 device or if the user supplies
561 the "force" module parameter, e.g., with the "aml_nfw.force"
562 kernel command line option.
563
564source "drivers/sn/Kconfig"
565
566config KEXEC
567 bool "kexec system call (EXPERIMENTAL)"
568 depends on EXPERIMENTAL && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
569 help
570 kexec is a system call that implements the ability to shutdown your
571 current kernel, and to start another kernel. It is like a reboot
572 but it is independent of the system firmware. And like a reboot
573 you can start any kernel with it, not just Linux.
574
575 The name comes from the similarity to the exec system call.
576
577 It is an ongoing process to be certain the hardware in a machine
578 is properly shutdown, so do not be surprised if this code does not
579 initially work for you. It may help to enable device hotplugging
580 support. As of this writing the exact hardware interface is
581 strongly in flux, so no good recommendation can be made.
582
583config CRASH_DUMP
584 bool "kernel crash dumps"
585 depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
586 help
587 Generate crash dump after being started by kexec.
588
589source "drivers/firmware/Kconfig"
590
591source "fs/Kconfig.binfmt"
592
593endmenu
594
595menu "Power management and ACPI options"
596
597source "kernel/power/Kconfig"
598
599source "drivers/acpi/Kconfig"
600
601if PM
602
603source "arch/ia64/kernel/cpufreq/Kconfig"
604
605endif
606
607endmenu
608
609if !IA64_HP_SIM
610
611menu "Bus options (PCI, PCMCIA)"
612
613config PCI
614 bool "PCI support"
615 help
616 Real IA-64 machines all have PCI/PCI-X/PCI Express busses. Say Y
617 here unless you are using a simulator without PCI support.
618
619config PCI_DOMAINS
620 def_bool PCI
621
622config PCI_SYSCALL
623 def_bool PCI
624
625source "drivers/pci/pcie/Kconfig"
626
627source "drivers/pci/Kconfig"
628
629source "drivers/pci/hotplug/Kconfig"
630
631source "drivers/pcmcia/Kconfig"
632
633config DMAR
634 bool "Support for DMA Remapping Devices (EXPERIMENTAL)"
635 depends on IA64_GENERIC && ACPI && EXPERIMENTAL
636 help
637 DMA remapping (DMAR) devices support enables independent address
638 translations for Direct Memory Access (DMA) from devices.
639 These DMA remapping devices are reported via ACPI tables
640 and include PCI device scope covered by these DMA
641 remapping devices.
642
643config DMAR_DEFAULT_ON
644 def_bool y
645 prompt "Enable DMA Remapping Devices by default"
646 depends on DMAR
647 help
648 Selecting this option will enable a DMAR device at boot time if
649 one is found. If this option is not selected, DMAR support can
650 be enabled by passing intel_iommu=on to the kernel. It is
651 recommended you say N here while the DMAR code remains
652 experimental.
653
654endmenu
655
656endif
657
658source "net/Kconfig"
659
660source "drivers/Kconfig"
661
662source "arch/ia64/hp/sim/Kconfig"
663
664config MSPEC
665 tristate "Memory special operations driver"
666 depends on IA64
667 select IA64_UNCACHED_ALLOCATOR
668 help
669 If you have an ia64 and you want to enable memory special
670 operations support (formerly known as fetchop), say Y here,
671 otherwise say N.
672
673source "fs/Kconfig"
674
675source "arch/ia64/Kconfig.debug"
676
677source "security/Kconfig"
678
679source "crypto/Kconfig"
680
681source "arch/ia64/kvm/Kconfig"
682
683source "lib/Kconfig"
684
685config IOMMU_HELPER
686 def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)
687
688config IOMMU_API
689 def_bool (DMAR)
690
