1
2
3
4
5
6mainmenu "IA-64 Linux Kernel Configuration"
7
8source "init/Kconfig"
9
10source "kernel/Kconfig.freezer"
11
12menu "Processor type and features"
13
14config IA64
15 bool
16 select PCI if (!IA64_HP_SIM)
17 select ACPI if (!IA64_HP_SIM)
18 select PM if (!IA64_HP_SIM)
19 select ARCH_SUPPORTS_MSI
20 select HAVE_UNSTABLE_SCHED_CLOCK
21 select HAVE_IDE
22 select HAVE_OPROFILE
23 select HAVE_KPROBES
24 select HAVE_KRETPROBES
25 select HAVE_FTRACE_MCOUNT_RECORD
26 select HAVE_DYNAMIC_FTRACE if (!ITANIUM)
27 select HAVE_FUNCTION_TRACER
28 select HAVE_DMA_ATTRS
29 select HAVE_KVM
30 select HAVE_ARCH_TRACEHOOK
31 select HAVE_DMA_API_DEBUG
32 default y
33 help
34 The Itanium Processor Family is Intel's 64-bit successor to
35 the 32-bit X86 line. The IA-64 Linux project has a home
36 page at <http://www.linuxia64.org/> and a mailing list at
37 <linux-ia64@vger.kernel.org>.
38
39config 64BIT
40 bool
41 select ATA_NONSTANDARD if ATA
42 default y
43
44config ZONE_DMA
45 def_bool y
46 depends on !IA64_SGI_SN2
47
48config QUICKLIST
49 bool
50 default y
51
52config MMU
53 bool
54 default y
55
56config SWIOTLB
57 bool
58
59config IOMMU_HELPER
60 bool
61
62config GENERIC_LOCKBREAK
63 def_bool n
64
65config RWSEM_XCHGADD_ALGORITHM
66 bool
67 default y
68
69config HUGETLB_PAGE_SIZE_VARIABLE
70 bool
71 depends on HUGETLB_PAGE
72 default y
73
74config GENERIC_FIND_NEXT_BIT
75 bool
76 default y
77
78config GENERIC_CALIBRATE_DELAY
79 bool
80 default y
81
82config GENERIC_TIME
83 bool
84 default y
85
86config GENERIC_TIME_VSYSCALL
87 bool
88 default y
89
90config HAVE_LEGACY_PER_CPU_AREA
91 def_bool y
92
93config HAVE_SETUP_PER_CPU_AREA
94 def_bool y
95
96config DMI
97 bool
98 default y
99
100config EFI
101 bool
102 default y
103
104config GENERIC_IOMAP
105 bool
106 default y
107
108config SCHED_OMIT_FRAME_POINTER
109 bool
110 default y
111
112config IA64_UNCACHED_ALLOCATOR
113 bool
114 select GENERIC_ALLOCATOR
115
116config ARCH_USES_PG_UNCACHED
117 def_bool y
118 depends on IA64_UNCACHED_ALLOCATOR
119
120config AUDIT_ARCH
121 bool
122 default y
123
124menuconfig PARAVIRT_GUEST
125 bool "Paravirtualized guest support"
126 help
127 Say Y here to get to see options related to running Linux under
128 various hypervisors. This option alone does not add any kernel code.
129
130 If you say N, all options in this submenu will be skipped and disabled.
131
132if PARAVIRT_GUEST
133
134config PARAVIRT
135 bool "Enable paravirtualization code"
136 depends on PARAVIRT_GUEST
137 default y
138 bool
139 default y
140 help
141 This changes the kernel so it can modify itself when it is run
142 under a hypervisor, potentially improving performance significantly
143 over full virtualization. However, when run without a hypervisor
144 the kernel is theoretically slower and slightly larger.
145
146
147source "arch/ia64/xen/Kconfig"
148
149endif
150
151choice
152 prompt "System type"
153 default IA64_GENERIC
154
155config IA64_GENERIC
156 bool "generic"
157 select NUMA
158 select ACPI_NUMA
159 select SWIOTLB
160 select PCI_MSI
161 select DMAR
162 help
163 This selects the system type of your hardware. A "generic" kernel
164 will run on any supported IA-64 system. However, if you configure
165 a kernel for your specific system, it will be faster and smaller.
166
167 generic For any supported IA-64 system
168 DIG-compliant For DIG ("Developer's Interface Guide") compliant systems
169 DIG+Intel+IOMMU For DIG systems with Intel IOMMU
170 HP-zx1/sx1000 For HP systems
171 HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices.
172 SGI-SN2 For SGI Altix systems
173 SGI-UV For SGI UV systems
174 Ski-simulator For the HP simulator <http://www.hpl.hp.com/research/linux/ski/>
175 Xen-domU For xen domU system
176
177 If you don't know what to do, choose "generic".
178
179config IA64_DIG
180 bool "DIG-compliant"
181 select SWIOTLB
182
183config IA64_DIG_VTD
184 bool "DIG+Intel+IOMMU"
185 select DMAR
186 select PCI_MSI
187
188config IA64_HP_ZX1
189 bool "HP-zx1/sx1000"
190 help
191 Build a kernel that runs on HP zx1 and sx1000 systems. This adds
192 support for the HP I/O MMU.
193
194config IA64_HP_ZX1_SWIOTLB
195 bool "HP-zx1/sx1000 with software I/O TLB"
196 select SWIOTLB
197 help
198 Build a kernel that runs on HP zx1 and sx1000 systems even when they
199 have broken PCI devices which cannot DMA to full 32 bits. Apart
200 from support for the HP I/O MMU, this includes support for the software
201 I/O TLB, which allows supporting the broken devices at the expense of
202 wasting some kernel memory (about 2MB by default).
203
204config IA64_SGI_SN2
205 bool "SGI-SN2"
206 select NUMA
207 select ACPI_NUMA
208 help
209 Selecting this option will optimize the kernel for use on sn2 based
210 systems, but the resulting kernel binary will not run on other
211 types of ia64 systems. If you have an SGI Altix system, it's safe
212 to select this option. If in doubt, select ia64 generic support
213 instead.
214
215config IA64_SGI_UV
216 bool "SGI-UV"
217 select NUMA
218 select ACPI_NUMA
219 select SWIOTLB
220 help
221 Selecting this option will optimize the kernel for use on UV based
222 systems, but the resulting kernel binary will not run on other
223 types of ia64 systems. If you have an SGI UV system, it's safe
224 to select this option. If in doubt, select ia64 generic support
225 instead.
226
227config IA64_HP_SIM
228 bool "Ski-simulator"
229 select SWIOTLB
230
231config IA64_XEN_GUEST
232 bool "Xen guest"
233 select SWIOTLB
234 depends on XEN
235 help
236 Build a kernel that runs on Xen guest domain. At this moment only
237 16KB page size in supported.
238
239endchoice
240
241choice
242 prompt "Processor type"
243 default ITANIUM
244
245config ITANIUM
246 bool "Itanium"
247 help
248 Select your IA-64 processor type. The default is Itanium.
249 This choice is safe for all IA-64 systems, but may not perform
250 optimally on systems with, say, Itanium 2 or newer processors.
251
252config MCKINLEY
253 bool "Itanium 2"
254 help
255 Select this to configure for an Itanium 2 (McKinley) processor.
256
257endchoice
258
259choice
260 prompt "Kernel page size"
261 default IA64_PAGE_SIZE_16KB
262
263config IA64_PAGE_SIZE_4KB
264 bool "4KB"
265 help
266 This lets you select the page size of the kernel. For best IA-64
267 performance, a page size of 8KB or 16KB is recommended. For best
268 IA-32 compatibility, a page size of 4KB should be selected (the vast
269 majority of IA-32 binaries work perfectly fine with a larger page
270 size). For Itanium 2 or newer systems, a page size of 64KB can also
271 be selected.
272
273 4KB For best IA-32 compatibility
274 8KB For best IA-64 performance
275 16KB For best IA-64 performance
276 64KB Requires Itanium 2 or newer processor.
277
278 If you don't know what to do, choose 16KB.
279
280config IA64_PAGE_SIZE_8KB
281 bool "8KB"
282
283config IA64_PAGE_SIZE_16KB
284 bool "16KB"
285
286config IA64_PAGE_SIZE_64KB
287 depends on !ITANIUM
288 bool "64KB"
289
290endchoice
291
292choice
293 prompt "Page Table Levels"
294 default PGTABLE_3
295
296config PGTABLE_3
297 bool "3 Levels"
298
299config PGTABLE_4
300 depends on !IA64_PAGE_SIZE_64KB
301 bool "4 Levels"
302
303endchoice
304
305if IA64_HP_SIM
306config HZ
307 default 32
308endif
309
310if !IA64_HP_SIM
311source kernel/Kconfig.hz
312endif
313
314config IA64_BRL_EMU
315 bool
316 depends on ITANIUM
317 default y
318
319
320config IA64_L1_CACHE_SHIFT
321 int
322 default "7" if MCKINLEY
323 default "6" if ITANIUM
324
325config IA64_CYCLONE
326 bool "Cyclone (EXA) Time Source support"
327 help
328 Say Y here to enable support for IBM EXA Cyclone time source.
329 If you're unsure, answer N.
330
331config IOSAPIC
332 bool
333 depends on !IA64_HP_SIM
334 default y
335
336config FORCE_MAX_ZONEORDER
337 int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE
338 range 11 17 if !HUGETLB_PAGE
339 default "17" if HUGETLB_PAGE
340 default "11"
341
342config VIRT_CPU_ACCOUNTING
343 bool "Deterministic task and CPU time accounting"
344 default n
345 help
346 Select this option to enable more accurate task and CPU time
347 accounting. This is done by reading a CPU counter on each
348 kernel entry and exit and on transitions within the kernel
349 between system, softirq and hardirq state, so there is a
350 small performance impact.
351 If in doubt, say N here.
352
353config SMP
354 bool "Symmetric multi-processing support"
355 select USE_GENERIC_SMP_HELPERS
356 help
357 This enables support for systems with more than one CPU. If you have
358 a system with only one CPU, say N. If you have a system with more
359 than one CPU, say Y.
360
361 If you say N here, the kernel will run on single and multiprocessor
362 systems, but will use only one CPU of a multiprocessor system. If
363 you say Y here, the kernel will run on many, but not all,
364 single processor systems. On a single processor system, the kernel
365 will run faster if you say N here.
366
367 See also the SMP-HOWTO available at
368 <http://www.tldp.org/docs.html#howto>.
369
370 If you don't know what to do here, say N.
371
372config NR_CPUS
373 int "Maximum number of CPUs (2-4096)"
374 range 2 4096
375 depends on SMP
376 default "4096"
377 help
378 You should set this to the number of CPUs in your system, but
379 keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
380 only use 2 CPUs on a >2 CPU system. Setting this to a value larger
381 than 64 will cause the use of a CPU mask array, causing a small
382 performance hit.
383
384config HOTPLUG_CPU
385 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
386 depends on SMP && EXPERIMENTAL
387 select HOTPLUG
388 default n
389 ---help---
390 Say Y here to experiment with turning CPUs off and on. CPUs
391 can be controlled through /sys/devices/system/cpu/cpu
392 Say N if you want to disable CPU hotplug.
393
394config ARCH_ENABLE_MEMORY_HOTPLUG
395 def_bool y
396
397config ARCH_ENABLE_MEMORY_HOTREMOVE
398 def_bool y
399
400config SCHED_SMT
401 bool "SMT scheduler support"
402 depends on SMP
403 help
404 Improves the CPU scheduler's decision making when dealing with
405 Intel IA64 chips with MultiThreading at a cost of slightly increased
406 overhead in some places. If unsure say N here.
407
408config PERMIT_BSP_REMOVE
409 bool "Support removal of Bootstrap Processor"
410 depends on HOTPLUG_CPU
411 default n
412 ---help---
413 Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
414 support.
415
416config FORCE_CPEI_RETARGET
417 bool "Force assumption that CPEI can be re-targetted"
418 depends on PERMIT_BSP_REMOVE
419 default n
420 ---help---
421 Say Y if you need to force the assumption that CPEI can be re-targetted to
422 any cpu in the system. This hint is available via ACPI 3.0 specifications.
423 Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
424 This option it useful to enable this feature on older BIOS's as well.
425 You can also enable this by using boot command line option force_cpei=1.
426
427source "kernel/Kconfig.preempt"
428
429source "mm/Kconfig"
430
431config ARCH_SELECT_MEMORY_MODEL
432 def_bool y
433
434config ARCH_DISCONTIGMEM_ENABLE
435 def_bool y
436 help
437 Say Y to support efficient handling of discontiguous physical memory,
438 for architectures which are either NUMA (Non-Uniform Memory Access)
439 or have huge holes in the physical address space for other reasons.
440 See <file:Documentation/vm/numa> for more.
441
442config ARCH_FLATMEM_ENABLE
443 def_bool y
444
445config ARCH_SPARSEMEM_ENABLE
446 def_bool y
447 depends on ARCH_DISCONTIGMEM_ENABLE
448 select SPARSEMEM_VMEMMAP_ENABLE
449
450config ARCH_DISCONTIGMEM_DEFAULT
451 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
452 depends on ARCH_DISCONTIGMEM_ENABLE
453
454config NUMA
455 bool "NUMA support"
456 depends on !IA64_HP_SIM && !FLATMEM
457 default y if IA64_SGI_SN2
458 select ACPI_NUMA if ACPI
459 help
460 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
461 Access). This option is for configuring high-end multiprocessor
462 server systems. If in doubt, say N.
463
464config NODES_SHIFT
465 int "Max num nodes shift(3-10)"
466 range 3 10
467 default "10"
468 depends on NEED_MULTIPLE_NODES
469 help
470 This option specifies the maximum number of nodes in your SSI system.
471 MAX_NUMNODES will be 2^(This value).
472 If in doubt, use the default.
473
474config ARCH_POPULATES_NODE_MAP
475 def_bool y
476
477
478
479config VIRTUAL_MEM_MAP
480 bool "Virtual mem map"
481 depends on !SPARSEMEM
482 default y if !IA64_HP_SIM
483 help
484 Say Y to compile the kernel with support for a virtual mem map.
485 This code also only takes effect if a memory hole of greater than
486 1 Gb is found during boot. You must turn this option on if you
487 require the DISCONTIGMEM option for your machine. If you are
488 unsure, say Y.
489
490config HOLES_IN_ZONE
491 bool
492 default y if VIRTUAL_MEM_MAP
493
494config HAVE_ARCH_EARLY_PFN_TO_NID
495 def_bool NUMA && SPARSEMEM
496
497config HAVE_ARCH_NODEDATA_EXTENSION
498 def_bool y
499 depends on NUMA
500
501config ARCH_PROC_KCORE_TEXT
502 def_bool y
503 depends on PROC_KCORE
504
505config IA32_SUPPORT
506 bool "Support for Linux/x86 binaries"
507 help
508 IA-64 processors can execute IA-32 (X86) instructions. By
509 saying Y here, the kernel will include IA-32 system call
510 emulation support which makes it possible to transparently
511 run IA-32 Linux binaries on an IA-64 Linux system.
512 If in doubt, say Y.
513
514config COMPAT
515 bool
516 depends on IA32_SUPPORT
517 default y
518
519config COMPAT_FOR_U64_ALIGNMENT
520 def_bool COMPAT
521
522config IA64_MCA_RECOVERY
523 tristate "MCA recovery from errors other than TLB."
524
525config PERFMON
526 bool "Performance monitor support"
527 help
528 Selects whether support for the IA-64 performance monitor hardware
529 is included in the kernel. This makes some kernel data-structures a
530 little bigger and slows down execution a bit, but it is generally
531 a good idea to turn this on. If you're unsure, say Y.
532
533config IA64_PALINFO
534 tristate "/proc/pal support"
535 help
536 If you say Y here, you are able to get PAL (Processor Abstraction
537 Layer) information in /proc/pal. This contains useful information
538 about the processors in your systems, such as cache and TLB sizes
539 and the PAL firmware version in use.
540
541 To use this option, you have to ensure that the "/proc file system
542 support" (CONFIG_PROC_FS) is enabled, too.
543
544config IA64_MC_ERR_INJECT
545 tristate "MC error injection support"
546 help
547 Adds support for MC error injection. If enabled, the kernel
548 will provide a sysfs interface for user applications to
549 call MC error injection PAL procedures to inject various errors.
550 This is a useful tool for MCA testing.
551
552 If you're unsure, do not select this option.
553
554config SGI_SN
555 def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
556
557config IA64_ESI
558 bool "ESI (Extensible SAL Interface) support"
559 help
560 If you say Y here, support is built into the kernel to
561 make ESI calls. ESI calls are used to support vendor-specific
562 firmware extensions, such as the ability to inject memory-errors
563 for test-purposes. If you're unsure, say N.
564
565config IA64_HP_AML_NFW
566 bool "Support ACPI AML calls to native firmware"
567 help
568 This driver installs a global ACPI Operation Region handler for
569 region 0xA1. AML methods can use this OpRegion to call arbitrary
570 native firmware functions. The driver installs the OpRegion
571 handler if there is an HPQ5001 device or if the user supplies
572 the "force" module parameter, e.g., with the "aml_nfw.force"
573 kernel command line option.
574
575source "drivers/sn/Kconfig"
576
577config KEXEC
578 bool "kexec system call (EXPERIMENTAL)"
579 depends on EXPERIMENTAL && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
580 help
581 kexec is a system call that implements the ability to shutdown your
582 current kernel, and to start another kernel. It is like a reboot
583 but it is independent of the system firmware. And like a reboot
584 you can start any kernel with it, not just Linux.
585
586 The name comes from the similarity to the exec system call.
587
588 It is an ongoing process to be certain the hardware in a machine
589 is properly shutdown, so do not be surprised if this code does not
590 initially work for you. It may help to enable device hotplugging
591 support. As of this writing the exact hardware interface is
592 strongly in flux, so no good recommendation can be made.
593
594config CRASH_DUMP
595 bool "kernel crash dumps"
596 depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
597 help
598 Generate crash dump after being started by kexec.
599
600source "drivers/firmware/Kconfig"
601
602source "fs/Kconfig.binfmt"
603
604endmenu
605
606menu "Power management and ACPI options"
607
608source "kernel/power/Kconfig"
609
610source "drivers/acpi/Kconfig"
611
612if PM
613
614source "arch/ia64/kernel/cpufreq/Kconfig"
615
616endif
617
618endmenu
619
620if !IA64_HP_SIM
621
622menu "Bus options (PCI, PCMCIA)"
623
624config PCI
625 bool "PCI support"
626 help
627 Real IA-64 machines all have PCI/PCI-X/PCI Express busses. Say Y
628 here unless you are using a simulator without PCI support.
629
630config PCI_DOMAINS
631 def_bool PCI
632
633config PCI_SYSCALL
634 def_bool PCI
635
636source "drivers/pci/pcie/Kconfig"
637
638source "drivers/pci/Kconfig"
639
640source "drivers/pci/hotplug/Kconfig"
641
642source "drivers/pcmcia/Kconfig"
643
644config DMAR
645 bool "Support for DMA Remapping Devices (EXPERIMENTAL)"
646 depends on IA64_GENERIC && ACPI && EXPERIMENTAL
647 help
648 DMA remapping (DMAR) devices support enables independent address
649 translations for Direct Memory Access (DMA) from devices.
650 These DMA remapping devices are reported via ACPI tables
651 and include PCI device scope covered by these DMA
652 remapping devices.
653
654config DMAR_DEFAULT_ON
655 def_bool y
656 prompt "Enable DMA Remapping Devices by default"
657 depends on DMAR
658 help
659 Selecting this option will enable a DMAR device at boot time if
660 one is found. If this option is not selected, DMAR support can
661 be enabled by passing intel_iommu=on to the kernel. It is
662 recommended you say N here while the DMAR code remains
663 experimental.
664
665endmenu
666
667endif
668
669source "net/Kconfig"
670
671source "drivers/Kconfig"
672
673source "arch/ia64/hp/sim/Kconfig"
674
675config MSPEC
676 tristate "Memory special operations driver"
677 depends on IA64
678 select IA64_UNCACHED_ALLOCATOR
679 help
680 If you have an ia64 and you want to enable memory special
681 operations support (formerly known as fetchop), say Y here,
682 otherwise say N.
683
684source "fs/Kconfig"
685
686source "arch/ia64/Kconfig.debug"
687
688source "security/Kconfig"
689
690source "crypto/Kconfig"
691
692source "arch/ia64/kvm/Kconfig"
693
694source "lib/Kconfig"
695
696
697
698
699config GENERIC_HARDIRQS
700 bool
701 default y
702
703config GENERIC_IRQ_PROBE
704 bool
705 default y
706
707config GENERIC_PENDING_IRQ
708 bool
709 depends on GENERIC_HARDIRQS && SMP
710 default y
711
712config IRQ_PER_CPU
713 bool
714 default y
715
716config IOMMU_HELPER
717 def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)
718
719config IOMMU_API
720 def_bool (DMAR)
721
